US20130074573A1 - Folding system for a cutting blade - Google Patents
Folding system for a cutting blade Download PDFInfo
- Publication number
- US20130074573A1 US20130074573A1 US13/679,917 US201213679917A US2013074573A1 US 20130074573 A1 US20130074573 A1 US 20130074573A1 US 201213679917 A US201213679917 A US 201213679917A US 2013074573 A1 US2013074573 A1 US 2013074573A1
- Authority
- US
- United States
- Prior art keywords
- bending
- folding
- guide
- cutting blade
- pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/16—Folding; Pleating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
- B21D37/205—Making cutting tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
Definitions
- the present invention relates to a folding system of a cutting blade used in forming a folding line on a sheet matter so that the sheet matter, such as paper or plastic, etc., may be made into a predetermined shape, and more particularly to a folding system of the cutting blade being used so that cutting and folding functions associated with the cutting blade can be performed in one process.
- the cutting blade is attached to a pattern for use in pressing a folding or a cutting line on plate matters such as paper, canvas, leather, plastic, etc.
- the plate matters with such pressed lines can be used in a folded shape like a box. Accordingly, in order to assemble and process the plate matter into a predetermined box shape with the cutting blade, it is necessary that the cutting blade is folded in a shape suitable to forming the processing line in the box shape.
- embodiments of the present invention provide apparatus, method, and system for folding a cutting blade to improve work efficiency and productivity by continuously performing all work elements needed in the cutting and folding works of the cutting blade provided in a sheet matter molding.
- a bending apparatus in one embodiment, includes: a transferring unit for transferring a metallic rule through a passage formed by a guide, the passage defining a longitudinal axis; a folding unit having first and second rotary bodies spaced to receive the metallic rule therebetween; and a pair of bending fingers including a first bending finger and a second bending finger, the pair of bending fingers supported to revolve and move in a direction substantially transverse to the longitudinal axis for applying force against the metallic rule passing through the guide, the pair of bending fingers positioned adjacent to the guide, and for bending the metallic rule to desired angles, wherein each finger of the pair of bending fingers is each configured for arcuate rotational motion relative to the guide from a first position toward at least one second position to bend a portion of the metallic rule, and wherein the pair of bending fingers rotate about a single rotational axis relative to the guide.
- FIG. 1 is a block diagram for a folding system of a cutting blade according to the present invention
- FIG. 2 is a detailed perspective view showing a guiding unit and a folding unit of the cutting blade shown in FIG. 1 ;
- FIG. 3 is a separated perspective view showing a unit “A” separated from FIG. 2 ;
- FIG. 4 is a side view shown from a direction “B” of an arrow marking of FIG. 2 ;
- FIG. 5 is a cross-sectional view taken along a line I-I of FIG. 2 ;
- FIG. 6 is a longitudinal sectional view taken along a line II-II of FIG. 5 .
- FIG. 1 shows a block diagram of a folding system according to the present invention.
- the folding system of the cutting blade comprises a transferring unit 10 for transferring the cutting blade of a roll shape, a cutting molding unit 100 for cutting and processing the transferred cutting blade in a length suitable to a sheet material molding (not shown), a guiding unit 200 , positioned between the cutting molding unit 100 and a folding unit 300 for the cutting blade so as to be connected mutually, for stably guiding the cutting blade which is passed through cutting molding unit 100 to folding unit 300 , the folding unit 300 positioned adjacent to the guiding unit 200 , for folding the cutting blade transferred through the guiding unit 200 with a predetermined angle, and a driving unit 400 for driving the folding unit 300 , and thus a process work of the cutting blade provided to a sheet material molding is performed in succession.
- the above cutting molding unit 100 is applied from Korean Patent No. 80607 entitled “Multi-purpose Cutter of a Cutting Blade for Die Cutter” filed by the present applicant on Dec. 11, 1991 and incorporated by reference herein. A detailed explanation for the cutting molding unit is therefore omitted below.
- FIG. 2 is a detailed perspective view showing only a portion of the guiding unit associated with the cutting blade and the folding unit, shown schematically in FIG. 1 .
- FIG. 3 is an exploded perspective view showing only a unit “A” separated from FIG. 2 .
- FIG. 4 is a side view shown from a direction “B” of an arrow marking of FIG. 2 .
- the guiding unit 200 is constructed by a guide nozzle 201 of a hollow structure configured and dimensioned to stably transfer a cutting blade 500 passed through the cutting molding unit to the folding unit 300 .
- guide nozzle 201 has a guiding passage 203 of a size such that cutting blade 500 can pass through freely, and two openings situated near the cutting molding unit 100 and the folding unit 300 , respectively.
- the guide nozzle 201 is configured so that the cutting blade 500 may be moved together with a cutting tip 503 of a cutting portion 501 .
- folding unit 300 includes a fixing body 310 connected to folding and rotary bodies 320 a and 320 b for the folding, which are set on substantially rectangular shaped supporting frames 301 a and 301 b .
- the supporting frames 301 a and 301 b are situated spaced apart with an interval therebetween wherein the guide nozzle 201 can be situated.
- the fixing body 310 for the folding function is constructed by a folding body 313 having a guiding entrance 311 of a size through which the cutting blade 500 can be passed, and by annular support portions 315 a and 315 b formed on both ends of the folding body 313 .
- the guiding entrance 311 of the folding body 313 is connected with the guiding passage 203 of the guide nozzle 201 such that the cutting blade 500 may enter inside the guiding entrance 311 freely.
- An end side portion of the guiding entrance 311 is preferably a slant side 312 to enhance the folding of the cutting blade 500 .
- the annular support portions 315 a and 315 b are provided to fixedly attach the folding body 313 to supporting frames 301 a and 301 b .
- the annular support portions 315 a and 315 b include guiding slots 316 a and 316 b of a round shape, and round housing units 318 a and 318 b for housing rotary bodies 320 a and 320 b which may be rotated to facilitate the folding function.
- the rotary bodies 320 a and 320 b are configured to be rotatably housed within the round housing units 318 a and 318 b arranged on both sides of the fixing body 310 .
- the rotary bodies 320 a and 320 b have guide holes 323 a and 323 b pierced therein and are configured to contact with the guide slots 316 a and 316 b.
- the guide holes 323 a and 323 b are provided to insertably receive a folding member 330 to facilitate movement thereof, and are configured and dimensioned corresponding to a cross-sectional shape of the folding member 330 .
- a folding member 330 is shown in the figures wherein each guide hole has a folding member set therein, it is preferable that only one folding member is set at a given time during operation.
- the folding member 330 is dimensioned to connect the rotary bodies 320 a and 320 b to each other while being positioned on the outer sides of supporting frames 301 a and 301 b .
- the folding member 330 is inserted through guide hole 323 a of rotary body 320 a , passes through a lateral side of the fixing body 310 , and is inserted into guide hole 323 b inside of rotary body 320 b and is capable of being moved upwards and downwards.
- the folding member 330 inserted for mutual connection of rotary bodies 320 a and 320 b is provided for the folding work of the cutting blade 500 , revolving together with the rotary bodies 320 a and 320 b .
- the folding member 330 is completely apart from folding body 313 and is moved towards an upper side. These operations are performed by the driving unit 400 mentioned later.
- driving unit 400 includes a first driving unit 410 provided to revolve the rotary bodies 320 a and 320 b and a second driving unit 420 provided to move folding member 330 upwards and downwards from the folding body 313 .
- the first driving unit 410 includes first toothed portions 411 a and 411 b which are fixed at both ends of a rotating shaft 418 which is rotatably within the supporting frames 301 a and 301 b .
- Second toothed portions 413 a and 413 b which are set on the outer circumference surface of the revolving bodies 320 a and 320 b are configured to mesh with the first toothed portions 411 a and 411 b .
- a servo motor M is operatively connected to the rotating shaft 418 .
- the second driving unit 420 is a cylinder 421 connected to one end of the folding member 330 to be moved upwards and downwards for the purpose of performing an expansion operation.
- an operating source of the cylinder 421 any one of either oil-hydraulic pressure or air pressure can be used.
- FIG. 5 is a cross-sectional view taken along a line I-I of FIG. 2 .
- FIG. 6 is a longitudinal sectional view taken along a line II-II of FIG. 5 .
- Folding member 330 has a substantially triangular shape, which enables the cutting blade 500 to be folded easily even without applying an immoderate force. To fold the cutting blade 500 easily, an application of any other shape excepting the triangulate shape doesn't matter.
- a fixation hole 340 is set on any one side of the guiding entrance 311 of the fixing body 313 , which is supported to enable passing of the cutting blade 500 .
- a fixation hole 340 is set on any one side of the guiding entrance 311 of the fixing body 313 , which is supported to enable passing of the cutting blade 500 .
- a fixation hole 340 is set on any one side of the guiding entrance 311 of the fixing body 313 , which is supported to enable passing of the cutting blade 500 .
- a steel wire spring 350 is set with
- the steel wire spring 350 elastically supports the cutting blade 500 as it passes through the guiding entrance 311 , and moves the cutting blade 500 within a predetermined channel, thereby heightening a precision of the folding work. Also, by setting a magnetic substance instead of the steel wire spring 350 , the same effect as the steel wire spring can be achieved.
- FIG. 5 shows, as an example, a structure in which the steel wire spring 350 is set on any one side of the guiding entrance 311 , it is contemplated that it may be positioned on both sides.
- the folding member 330 is extended when the cylinder 421 is driven, and is inserted into the guide holes 323 a and 323 b inside rotary bodies 320 a and 320 b , which are formed in the housing units 318 a and 318 b of the round shape of the fixing body 310 for rotational movement therein.
- the folding member 330 is integrally rotated along the guide slots 316 a and 316 b together with the folding member 330 .
- FIGS. 1 to 6 An operation embodiment of the folding system and an effect according to the present invention with the construction as above-mentioned are re-explained in detail referring to FIGS. 1 to 6 .
- the cutting blade 500 wound in a roll shape is transferred to the folding unit 300 , which performs the folding work, by the transferring unit 10 , having a transfer roller, through the cutting molding unit 100 and the guide nozzle 201 .
- the cutting molding unit 100 performs a cutting work for cutting the cutting blade 500 , passing through the cutting molding unit 100 , in the length necessary for the sheet matter molding.
- the cutting tip 503 is kept and maintained on the cutting blade 500 without detachment from the cutting portion 501 of the cutting blade 500 . This is to prevent damage to blade unit 505 which may be caused by a collision during a transfer of the cutting blade 500 through the guide nozzle 201 .
- the cutting molding unit 100 is applied from Korean Patent No. 80607 issued to the present applicant, and, therefore, the detailed operating description thereof is omitted.
- the cutting tip 503 Even if the cutting tip 503 , formed on the cutting blade 500 , is detached from the cutting molding unit 100 , the cutting tip 503 passes through the guide nozzle 201 continuously and thereby there is no cause for its detachment. As shown in FIGS. 2 and 4 , the cutting blade 500 passed through the guide nozzle 201 pierces through the guiding entrance 311 of the fixing body 313 , and then goes out to the outer side of the supporting frames 301 a and 301 b.
- the cutting blade 500 passing through the guiding entrance 311 contacts with the steel wire spring 350 as shown in FIG. 5 , but the steel wire spring 350 has an elastic force, so it doesn't become an obstacle to pass the cutting blade 500 at all.
- the steel wire spring 350 is provided to support the cutting blade 500 with the elastic force to dampen or prevent a fluctuation in the cutting blade 500 which may be caused by a sudden stop of the transfer roller 10 .
- the cutting blade 500 passed through the guiding entrance 311 is then folded in the shape suitable to a molding of the sheet material. In folding the cutting blade 500 , the transfer roller 10 stops and the transferring work of the cutting blade 500 is temporarily in a stopped state. At the same time as the stop of the transfer roller 10 , the second driving unit 420 between the driving units 400 operates first.
- the second driving unit 420 remains situated in a position as shown in FIG. 2 .
- the folding member 330 of one body with the cylinder 421 is inserted into the guide holes 323 a and 323 b inside of the rotary bodies 320 a and 320 b as shown in FIGS. 4 and 6 , and is also situated on any one side of the fixing body 313 adjacent to the cutting blade 500 .
- the guide holes 323 a and 323 b are formed on the same position, therefore the folding member 330 is inserted naturally when the cylinder 421 performs the falling operation.
- the first driving unit 410 operates.
- the first driving unit 410 is rotated by driving the servo motor M.
- the first toothed portions 411 a and 411 b are simultaneously rotated by means of the rotating shaft 418 .
- the revolving bodies 320 a and 320 b are rotated about a supporting point of the fixing body 310 .
- the folding member 330 is also rotated.
- the folding member 330 is rotated and moved around a periphery of the fixing body 313 along the guide slot 316 b from any one side of the fixing body 313 for the folding operation as shown in FIG. 5 .
- the moved folding member 330 contacts with the cutting blade 500 which extends through the guiding entrance 311 , thereby the cutting blade 500 is naturally folded by a rotating force of the folding member 330 along a slant face 312 of the fixing body 313 .
- the cutting tip 503 put on the cutting blade 500 is automatically separated by a tare and is collected when the cutting blade 500 extends through the outside of the guiding entrance 311 .
- the servo motor M stops the operation when the cutting blade 500 completes the folding, an immoderate rotation force of the rotary bodies 320 a and 320 b connected with the folding member 330 is not required.
- the folding member 330 returns to an original position by an operation of the cylinder 421 of the second driving unit 420 as shown in FIG. 2 .
- the transfer roller 10 begins to operate again, the cutting blade 500 moves to the outer side of the guiding entrance 311 of the fixing body 313 .
Abstract
A bending apparatus including: a transferring unit for transferring a metallic rule through a passage formed by a guide, said passage defining a longitudinal axis; a folding unit having first and second rotary bodies spaced to receive said metallic rule therebetween; and a pair of bending fingers including a first bending finger and a second bending finger, said pair of bending fingers supported to revolve and move in a direction substantially transverse to the longitudinal axis for applying force against the metallic rule passing through the guide, said pair of bending fingers positioned adjacent to the guide, and for bending the metallic rule to desired angles, wherein each finger of said pair of bending fingers is each configured for arcuate rotational motion relative to said guide from a first position toward at least one second position to bend a portion of said metallic rule, and wherein said pair of bending fingers rotate about a single rotational axis relative to said guide.
Description
- This application is a continuation application of co-pending U.S. patent application Ser. No. 11/558,316 filed on Nov. 9, 2006, which is a continuation of U.S. application Ser. No. 10/445,467 filed on May 27, 2003 (now abandoned), which is a continuation of 09/575,095 filed on May 19, 2000 now U.S. Pat. No. 6,405,574, which is a continuation of U.S. application Ser. No. 09/247,408 filed on Feb. 20, 1999 now U.S. Pat. No., 6,128,940, which is a continuation of U.S. application Ser. No. 09/049,391 filed on Mar. 27, 1998 now U.S. Pat. No., 5,870,919, which is a continuation of U.S. application Ser. No. 08,668,379 filed on Jun. 21, 1996 now U.S. Pat. No.: 5,787,750, which claimed priority benefit to Korean Application No. 1995-16975, filed 22 Jun. 1995.
- 1. Field of the Invention
- The present invention relates to a folding system of a cutting blade used in forming a folding line on a sheet matter so that the sheet matter, such as paper or plastic, etc., may be made into a predetermined shape, and more particularly to a folding system of the cutting blade being used so that cutting and folding functions associated with the cutting blade can be performed in one process.
- 2. Description of the Related Art
- Generally, the cutting blade is attached to a pattern for use in pressing a folding or a cutting line on plate matters such as paper, canvas, leather, plastic, etc. The plate matters with such pressed lines can be used in a folded shape like a box. Accordingly, in order to assemble and process the plate matter into a predetermined box shape with the cutting blade, it is necessary that the cutting blade is folded in a shape suitable to forming the processing line in the box shape.
- Conventional art for the folding device of a cutting blade is disclosed, for example, in Japan Patent No. 1988-309328 and No. 1990-20619. In the conventional art, however, a folded member used as a cutting blade is constructed by a rotary body that converts only a straight line movement into an orthogonal direction against the folded member on an end part of the folded member, or performs only a revolving movement centered about one point. Therefore, a disadvantage along with the use of the prior art cutting blade assemblies is that the folded angle of a processed member is limited to a single range of motion. Also, since two discrete functions are required, namely after a cutting work in separated places, then moving it into a folding device individually, and then the folding work is performed, or after the folding work, then moving it into a cutting device one by one, and then the cutting work is performed, additional time and labor are required, and the overall efficiency of the process decreases.
- Therefore, to address the above problem, embodiments of the present invention provide apparatus, method, and system for folding a cutting blade to improve work efficiency and productivity by continuously performing all work elements needed in the cutting and folding works of the cutting blade provided in a sheet matter molding.
- In one embodiment, a bending apparatus is disclosed. The bending apparatus includes: a transferring unit for transferring a metallic rule through a passage formed by a guide, the passage defining a longitudinal axis; a folding unit having first and second rotary bodies spaced to receive the metallic rule therebetween; and a pair of bending fingers including a first bending finger and a second bending finger, the pair of bending fingers supported to revolve and move in a direction substantially transverse to the longitudinal axis for applying force against the metallic rule passing through the guide, the pair of bending fingers positioned adjacent to the guide, and for bending the metallic rule to desired angles, wherein each finger of the pair of bending fingers is each configured for arcuate rotational motion relative to the guide from a first position toward at least one second position to bend a portion of the metallic rule, and wherein the pair of bending fingers rotate about a single rotational axis relative to the guide.
- The preferred embodiments are described with reference to the drawings wherein:
-
FIG. 1 is a block diagram for a folding system of a cutting blade according to the present invention; -
FIG. 2 is a detailed perspective view showing a guiding unit and a folding unit of the cutting blade shown inFIG. 1 ; -
FIG. 3 is a separated perspective view showing a unit “A” separated fromFIG. 2 ; -
FIG. 4 is a side view shown from a direction “B” of an arrow marking ofFIG. 2 ; -
FIG. 5 is a cross-sectional view taken along a line I-I ofFIG. 2 ; and -
FIG. 6 is a longitudinal sectional view taken along a line II-II ofFIG. 5 . - A preferred embodiment of the present invention will be described below in more detail with reference to the accompanying drawings.
-
FIG. 1 shows a block diagram of a folding system according to the present invention. InFIG. 1 , the folding system of the cutting blade comprises a transferringunit 10 for transferring the cutting blade of a roll shape, acutting molding unit 100 for cutting and processing the transferred cutting blade in a length suitable to a sheet material molding (not shown), a guidingunit 200, positioned between thecutting molding unit 100 and afolding unit 300 for the cutting blade so as to be connected mutually, for stably guiding the cutting blade which is passed throughcutting molding unit 100 to foldingunit 300, thefolding unit 300 positioned adjacent to the guidingunit 200, for folding the cutting blade transferred through the guidingunit 200 with a predetermined angle, and adriving unit 400 for driving thefolding unit 300, and thus a process work of the cutting blade provided to a sheet material molding is performed in succession. The detailed construction and operation of the above embodiment are explained below. The abovecutting molding unit 100 is applied from Korean Patent No. 80607 entitled “Multi-purpose Cutter of a Cutting Blade for Die Cutter” filed by the present applicant on Dec. 11, 1991 and incorporated by reference herein. A detailed explanation for the cutting molding unit is therefore omitted below. -
FIG. 2 is a detailed perspective view showing only a portion of the guiding unit associated with the cutting blade and the folding unit, shown schematically inFIG. 1 .FIG. 3 is an exploded perspective view showing only a unit “A” separated fromFIG. 2 .FIG. 4 is a side view shown from a direction “B” of an arrow marking ofFIG. 2 . The guidingunit 200 is constructed by aguide nozzle 201 of a hollow structure configured and dimensioned to stably transfer acutting blade 500 passed through the cutting molding unit to thefolding unit 300. - Referring now to
FIG. 2 ,guide nozzle 201 has a guidingpassage 203 of a size such thatcutting blade 500 can pass through freely, and two openings situated near thecutting molding unit 100 and thefolding unit 300, respectively. Theguide nozzle 201 is configured so that thecutting blade 500 may be moved together with acutting tip 503 of acutting portion 501. - Referring now to
FIG. 3 ,folding unit 300 includes afixing body 310 connected to folding androtary bodies frames frames guide nozzle 201 can be situated. Thefixing body 310 for the folding function is constructed by a foldingbody 313 having a guidingentrance 311 of a size through which thecutting blade 500 can be passed, and byannular support portions body 313. The guidingentrance 311 of the foldingbody 313 is connected with the guidingpassage 203 of theguide nozzle 201 such that thecutting blade 500 may enter inside the guidingentrance 311 freely. An end side portion of the guidingentrance 311 is preferably aslant side 312 to enhance the folding of thecutting blade 500. - The
annular support portions body 313 to supportingframes FIG. 6 in detail, theannular support portions slots round housing units rotary bodies rotary bodies round housing units fixing body 310. For a smooth revolving operation of therotary bodies bearings housing units FIG. 6 . Therotary bodies guide holes guide slots - The
guide holes folding member 330 to facilitate movement thereof, and are configured and dimensioned corresponding to a cross-sectional shape of thefolding member 330. Although an example of theguide holes FIG. 6 , thefolding member 330 is dimensioned to connect therotary bodies frames folding member 330 is inserted throughguide hole 323 a ofrotary body 320 a, passes through a lateral side of thefixing body 310, and is inserted intoguide hole 323 b inside ofrotary body 320 b and is capable of being moved upwards and downwards. Thefolding member 330 inserted for mutual connection ofrotary bodies cutting blade 500, revolving together with therotary bodies folding member 330 is completely apart from foldingbody 313 and is moved towards an upper side. These operations are performed by the drivingunit 400 mentioned later. - Although two
folding members 330 are shown in the drawings, for exemplary purposes, only one can be set. - Referring now to
FIGS. 2 and 4 , drivingunit 400 includes afirst driving unit 410 provided to revolve therotary bodies second driving unit 420 provided to move foldingmember 330 upwards and downwards from thefolding body 313. Thefirst driving unit 410 includes firsttoothed portions rotating shaft 418 which is rotatably within the supportingframes toothed portions bodies toothed portions rotating shaft 418. Thesecond driving unit 420 is acylinder 421 connected to one end of thefolding member 330 to be moved upwards and downwards for the purpose of performing an expansion operation. As an operating source of thecylinder 421 any one of either oil-hydraulic pressure or air pressure can be used. -
FIG. 5 is a cross-sectional view taken along a line I-I ofFIG. 2 .FIG. 6 is a longitudinal sectional view taken along a line II-II ofFIG. 5 . Foldingmember 330 has a substantially triangular shape, which enables thecutting blade 500 to be folded easily even without applying an immoderate force. To fold thecutting blade 500 easily, an application of any other shape excepting the triangulate shape doesn't matter. On any one side of the guidingentrance 311 of the fixingbody 313, which is supported to enable passing of thecutting blade 500, afixation hole 340 is set. In the inside of thefixation hole 340, asteel wire spring 350 is set with one portion jutting out to a center position of the guidingentrance 311 through which thecutting blade 500 passes. - The
steel wire spring 350 elastically supports thecutting blade 500 as it passes through the guidingentrance 311, and moves thecutting blade 500 within a predetermined channel, thereby heightening a precision of the folding work. Also, by setting a magnetic substance instead of thesteel wire spring 350, the same effect as the steel wire spring can be achieved. - Though
FIG. 5 shows, as an example, a structure in which thesteel wire spring 350 is set on any one side of the guidingentrance 311, it is contemplated that it may be positioned on both sides. As shown inFIG. 6 , the foldingmember 330 is extended when thecylinder 421 is driven, and is inserted into the guide holes 323 a and 323 b insiderotary bodies housing units body 310 for rotational movement therein. When therotary bodies member 330 is integrally rotated along theguide slots member 330. - An operation embodiment of the folding system and an effect according to the present invention with the construction as above-mentioned are re-explained in detail referring to
FIGS. 1 to 6 . - The
cutting blade 500 wound in a roll shape is transferred to thefolding unit 300, which performs the folding work, by the transferringunit 10, having a transfer roller, through the cuttingmolding unit 100 and theguide nozzle 201. At this time, the cuttingmolding unit 100 performs a cutting work for cutting thecutting blade 500, passing through the cuttingmolding unit 100, in the length necessary for the sheet matter molding. Herewith, the cuttingtip 503 is kept and maintained on thecutting blade 500 without detachment from the cuttingportion 501 of thecutting blade 500. This is to prevent damage toblade unit 505 which may be caused by a collision during a transfer of thecutting blade 500 through theguide nozzle 201. The cuttingmolding unit 100 is applied from Korean Patent No. 80607 issued to the present applicant, and, therefore, the detailed operating description thereof is omitted. - Even if the
cutting tip 503, formed on thecutting blade 500, is detached from the cuttingmolding unit 100, the cuttingtip 503 passes through theguide nozzle 201 continuously and thereby there is no cause for its detachment. As shown inFIGS. 2 and 4 , thecutting blade 500 passed through theguide nozzle 201 pierces through the guidingentrance 311 of the fixingbody 313, and then goes out to the outer side of the supportingframes - The
cutting blade 500 passing through the guidingentrance 311 contacts with thesteel wire spring 350 as shown inFIG. 5 , but thesteel wire spring 350 has an elastic force, so it doesn't become an obstacle to pass thecutting blade 500 at all. Thesteel wire spring 350 is provided to support thecutting blade 500 with the elastic force to dampen or prevent a fluctuation in thecutting blade 500 which may be caused by a sudden stop of thetransfer roller 10. Thecutting blade 500 passed through the guidingentrance 311 is then folded in the shape suitable to a molding of the sheet material. In folding thecutting blade 500, thetransfer roller 10 stops and the transferring work of thecutting blade 500 is temporarily in a stopped state. At the same time as the stop of thetransfer roller 10, thesecond driving unit 420 between the drivingunits 400 operates first. - If only one
cylinder 421 out of thesecond driving unit 420 falls in the operation, thesecond driving unit 420 remains situated in a position as shown inFIG. 2 . The foldingmember 330 of one body with thecylinder 421 is inserted into the guide holes 323 a and 323 b inside of therotary bodies FIGS. 4 and 6 , and is also situated on any one side of the fixingbody 313 adjacent to thecutting blade 500. The guide holes 323 a and 323 b are formed on the same position, therefore thefolding member 330 is inserted naturally when thecylinder 421 performs the falling operation. When the foldingmember 330 moved and is completed in moving to the position adjacent thecutting blade 500, thefirst driving unit 410 operates. Thefirst driving unit 410 is rotated by driving the servo motor M. By driving the servo motor M, the firsttoothed portions rotating shaft 418. By a meshing operation between the firsttoothed portions toothed portions bodies body 310. When the revolvingbodies member 330 is also rotated. That is, the foldingmember 330 is rotated and moved around a periphery of the fixingbody 313 along theguide slot 316 b from any one side of the fixingbody 313 for the folding operation as shown inFIG. 5 . At this time, the moved foldingmember 330 contacts with thecutting blade 500 which extends through the guidingentrance 311, thereby thecutting blade 500 is naturally folded by a rotating force of thefolding member 330 along aslant face 312 of the fixingbody 313. Meanwhile, the cuttingtip 503 put on thecutting blade 500 is automatically separated by a tare and is collected when thecutting blade 500 extends through the outside of the guidingentrance 311. - Since the servo motor M stops the operation when the
cutting blade 500 completes the folding, an immoderate rotation force of therotary bodies member 330 is not required. When the folding work of thecutting blade 500 is completed, the foldingmember 330 returns to an original position by an operation of thecylinder 421 of thesecond driving unit 420 as shown inFIG. 2 . When thetransfer roller 10 begins to operate again, thecutting blade 500 moves to the outer side of the guidingentrance 311 of the fixingbody 313. While in that position, if a need exists to fold a predetermined unit of thecutting blade 500 in a direction opposite that which was described above, an operation of thetransfer roller 10 stops, and at the same time theother folding member 330 falls and moves, and then the same steps as discussed above are repeated. As long as thecutting blade 500 is supplied, it may continuously be formed into any desired configuration. In the above-mentioned embodiment, though each step is explained separately for the understanding of the step for the folding work of the cutting blade, all processes such as a supply, a cutting, a folding work of the cutting blade, etc. can be performed by an automation controlled by a computer, etc. - As afore-mentioned, according to the present invention, all works necessary for the cutting and the folding of the cutting blade in the shape corresponding to the sheet material molding are performed in succession by one process with a unified construction, thereby resulting in an improvement of the cutting and folding works of the cutting blade and a productivity increase.
- While only certain embodiments of the invention have been specifically described herein, it will apparent that numerous modifications may be made thereto without departing from the spirit and scope of the invention.
Claims (1)
1. A bending apparatus comprising:
a transferring unit for transferring a metallic rule through a passage formed by a guide, said passage defining a longitudinal axis;
a folding unit having first and second rotary bodies spaced to receive said metallic rule therebetween; and
a pair of bending fingers including a first bending finger and a second bending finger, said pair of bending fingers supported to revolve and move in a direction substantially transverse to the longitudinal axis for applying force against the metallic rule passing through the guide, said pair of bending fingers positioned adjacent to the guide, and for bending the metallic rule to desired angles, wherein each finger of said pair of bending fingers is each configured for arcuate rotational motion relative to said guide from a first position toward at least one second position to bend a portion of said metallic rule, and
wherein said pair of bending fingers rotate about a single rotational axis relative to said guide.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/679,917 US20130074573A1 (en) | 1995-06-22 | 2012-11-16 | Folding system for a cutting blade |
US14/252,324 US20140338416A1 (en) | 1995-06-22 | 2014-04-14 | Folding system for a cutting blade |
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1995-16975 | 1995-06-22 | ||
KR1019950016975A KR0182069B1 (en) | 1995-06-22 | 1995-06-22 | Bent-up system of cutting blade |
US08/668,379 US5787750A (en) | 1995-06-22 | 1996-06-21 | Folding system for a cutting blade |
US09/049,391 US5870919A (en) | 1995-06-22 | 1998-03-27 | Folding system for a cutting blade |
US09/247,408 US6128940A (en) | 1995-06-22 | 1999-02-10 | Folding system for a cutting blade |
US09/575,095 US6405574B2 (en) | 1995-06-22 | 2000-05-19 | Folding system for a cutting blade |
US10/445,467 US20030192361A1 (en) | 1995-06-22 | 2003-05-27 | Folding system for a cutting blade |
US11/558,316 US8327679B2 (en) | 1995-06-22 | 2006-11-09 | Folding system for a cutting blade |
US13/679,917 US20130074573A1 (en) | 1995-06-22 | 2012-11-16 | Folding system for a cutting blade |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/558,316 Continuation US8327679B2 (en) | 1995-06-22 | 2006-11-09 | Folding system for a cutting blade |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/252,324 Continuation US20140338416A1 (en) | 1995-06-22 | 2014-04-14 | Folding system for a cutting blade |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130074573A1 true US20130074573A1 (en) | 2013-03-28 |
Family
ID=19417947
Family Applications (10)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/668,379 Expired - Lifetime US5787750A (en) | 1995-06-22 | 1996-06-21 | Folding system for a cutting blade |
US09/049,391 Expired - Lifetime US5870919A (en) | 1995-06-22 | 1998-03-27 | Folding system for a cutting blade |
US09/247,408 Expired - Lifetime US6128940A (en) | 1995-06-22 | 1999-02-10 | Folding system for a cutting blade |
US09/575,095 Expired - Lifetime US6405574B2 (en) | 1995-06-22 | 2000-05-19 | Folding system for a cutting blade |
US10/172,136 Abandoned US20020152788A1 (en) | 1995-06-22 | 2002-06-14 | Folding system for a cutting blade |
US10/445,467 Abandoned US20030192361A1 (en) | 1995-06-22 | 2003-05-27 | Folding system for a cutting blade |
US11/558,316 Expired - Fee Related US8327679B2 (en) | 1995-06-22 | 2006-11-09 | Folding system for a cutting blade |
US12/111,857 Expired - Fee Related US7694543B2 (en) | 1995-06-22 | 2008-04-29 | Folding system |
US13/679,917 Abandoned US20130074573A1 (en) | 1995-06-22 | 2012-11-16 | Folding system for a cutting blade |
US14/252,324 Abandoned US20140338416A1 (en) | 1995-06-22 | 2014-04-14 | Folding system for a cutting blade |
Family Applications Before (8)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/668,379 Expired - Lifetime US5787750A (en) | 1995-06-22 | 1996-06-21 | Folding system for a cutting blade |
US09/049,391 Expired - Lifetime US5870919A (en) | 1995-06-22 | 1998-03-27 | Folding system for a cutting blade |
US09/247,408 Expired - Lifetime US6128940A (en) | 1995-06-22 | 1999-02-10 | Folding system for a cutting blade |
US09/575,095 Expired - Lifetime US6405574B2 (en) | 1995-06-22 | 2000-05-19 | Folding system for a cutting blade |
US10/172,136 Abandoned US20020152788A1 (en) | 1995-06-22 | 2002-06-14 | Folding system for a cutting blade |
US10/445,467 Abandoned US20030192361A1 (en) | 1995-06-22 | 2003-05-27 | Folding system for a cutting blade |
US11/558,316 Expired - Fee Related US8327679B2 (en) | 1995-06-22 | 2006-11-09 | Folding system for a cutting blade |
US12/111,857 Expired - Fee Related US7694543B2 (en) | 1995-06-22 | 2008-04-29 | Folding system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/252,324 Abandoned US20140338416A1 (en) | 1995-06-22 | 2014-04-14 | Folding system for a cutting blade |
Country Status (4)
Country | Link |
---|---|
US (10) | US5787750A (en) |
JP (1) | JP2760971B2 (en) |
KR (1) | KR0182069B1 (en) |
DE (1) | DE19624830C2 (en) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5881591A (en) * | 1996-08-13 | 1999-03-16 | Ondracek; Carl | Automatic channel letter bending machine |
AU4909897A (en) * | 1996-10-22 | 1998-05-15 | Laser Products, Inc. | Method and apparatus for forming bends in a selected sequence |
US6367302B1 (en) * | 2000-11-13 | 2002-04-09 | Hong Soon Park | Method for bending and cutting metal strip material |
EP1264648A1 (en) * | 1998-06-11 | 2002-12-11 | Hong S. Park | Method of bending and cutting a metal strip |
US6324953B1 (en) | 1998-06-11 | 2001-12-04 | Hong Soon Park | Device for forming cutting blade for prints |
WO2000061313A1 (en) * | 1999-04-09 | 2000-10-19 | Sds Usa, Inc. | Apparatus for folding a cutting blade |
US6094960A (en) * | 1999-04-20 | 2000-08-01 | Kane; Kevin Alan | Metal strip bending device |
KR100429560B1 (en) * | 1999-07-19 | 2004-05-03 | 송병준 | Apparatus for Bending a Cutting Blade |
WO2001005532A1 (en) * | 1999-07-19 | 2001-01-25 | Song Byung Jun | Apparatus for bending a cutting blade |
KR100354720B1 (en) * | 2000-05-25 | 2002-09-30 | 박홍순 | Folding apparatus for cutting blade |
KR100388641B1 (en) * | 2000-09-29 | 2003-06-19 | 송병준 | Apparatus for cutting and bending a cutting blade |
KR100388542B1 (en) * | 2000-12-01 | 2003-06-25 | 박홍순 | Cutting blade bending apparatus capable of performing accurate acute angle |
KR100413064B1 (en) * | 2001-09-22 | 2003-12-31 | 주식회사 서울레이저발형시스템 | apparatus for folding arc-shaped band blade |
GB2413776A (en) * | 2004-05-06 | 2005-11-09 | Mp Automation Ltd | Nozzle insert for cutting rule bending machine |
DE112005003504B4 (en) * | 2005-03-14 | 2011-06-09 | Mizukawa, Suehiro, Settsu | Automatic bending machine for a steel stamping punch, as well as steel stamping dies |
US7387009B2 (en) * | 2005-03-24 | 2008-06-17 | Kevin Kane | Automated bending machine |
JP4435035B2 (en) * | 2005-05-27 | 2010-03-17 | 聰長 占部 | Cutting device for both ends of blade in automatic bending machine with steel rule |
JP2007111768A (en) * | 2005-10-21 | 2007-05-10 | Toshinaga Urabe | Automatic bending machine for manufacturing of steel rule cutting die |
WO2007102176A1 (en) * | 2006-03-08 | 2007-09-13 | Pro Form S.R.L. | Device and method for bending a metallic strip |
KR100754949B1 (en) * | 2006-05-18 | 2007-09-04 | 주식회사 엑스머신 | Band blade and manufacturing method for a cutting blade |
KR100768037B1 (en) * | 2006-12-04 | 2007-10-17 | 주식회사 엑스머신 | Apparatus for bending cutting blades |
KR100926288B1 (en) * | 2007-01-22 | 2009-11-12 | 이상무 | Cutting blade bending device |
KR100958845B1 (en) * | 2007-11-06 | 2010-05-19 | 주식회사 서울레이저발형시스템 | Cutter device for folding machine |
WO2009144748A1 (en) * | 2008-05-27 | 2009-12-03 | Pro Form S.R.L. | System for bending a metallic strip |
WO2009157677A1 (en) * | 2008-06-27 | 2009-12-30 | Park Hong Soon | Sheet material cutting device |
US20100140831A1 (en) * | 2008-12-05 | 2010-06-10 | Computerized Cutters, Inc. | Molded object-forming apparatus and method |
KR101649609B1 (en) * | 2009-12-21 | 2016-08-19 | 서울디엔에스 주식회사 | Folding machine of metallic strip |
CN102649134B (en) * | 2011-02-25 | 2015-05-20 | 苏州元泰自动化科技有限公司 | Automatic folding and bending device on numerically-controlled folding and bending machine |
CN103813868B (en) | 2011-04-27 | 2016-01-13 | 首尔激光模具板有限责任公司 | Section bar is used to produce channel letter |
CN103418646A (en) * | 2012-05-21 | 2013-12-04 | 天津智用科技有限公司 | Bending machine |
CN102744299A (en) * | 2012-06-18 | 2012-10-24 | 浙江大学 | Plate bending mechanism based on extensible bending rods |
PL3209439T3 (en) | 2014-10-23 | 2018-12-31 | Byte Line Di Pelissero Alessandro | Combined device for bending and cutting ribbon-shaped elements and method for bending and cutting ribbon-shaped elements by such device |
US10898977B2 (en) * | 2017-02-27 | 2021-01-26 | Seoul Laser Dieboard System Co., Ltd. | Adding cutting stations to bending systems |
CN108480510B (en) * | 2018-03-12 | 2019-08-02 | 瑞安市鑫锐机械设备有限公司 | A kind of automatic bar folder of flat tube |
CN111015233B (en) * | 2019-12-27 | 2021-02-19 | 巢湖市金辉自控设备有限公司 | Automatic pipe bending and cutting machine |
Family Cites Families (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US468301A (en) * | 1892-02-02 | Wire-bending machine | ||
US1500906A (en) * | 1922-08-18 | 1924-07-08 | Metal Auto Parts Company | Metal bending and shaping machine |
US1834733A (en) * | 1929-06-19 | 1931-12-01 | Delco Remy Corp | Wire bending machine |
US2382306A (en) * | 1944-02-08 | 1945-08-14 | Louis H Gable | Band iron brake |
US2438319A (en) * | 1944-09-09 | 1948-03-23 | Kilham Peter | Bending brake |
DE1292617B (en) * | 1962-11-30 | 1969-04-17 | Heinrich Bartz Kg | Roll bending press |
US3269164A (en) * | 1963-08-29 | 1966-08-30 | Johns Manville | Method and apparatus for the formation of folds in metal sheets |
US3420279A (en) * | 1966-07-05 | 1969-01-07 | Mcinerney Spring & Wire Co | Secondary wire-bending machine |
US3581535A (en) * | 1968-07-11 | 1971-06-01 | Goodyear Tire & Rubber | Method and apparatus for making blades |
US3584660A (en) * | 1968-12-16 | 1971-06-15 | Nasa | Forming tool for ribbon or wire |
US3680347A (en) * | 1971-01-13 | 1972-08-01 | Schenck Corp | Bending machine |
US3731513A (en) * | 1971-07-08 | 1973-05-08 | Bell Telephone Labor Inc | Method and apparatus for bending an elongated object |
US3803893A (en) | 1971-08-17 | 1974-04-16 | P Peddinghaus | Process for multiple bending of rods and a bending machine for carrying out this process |
BE791166A (en) * | 1972-04-12 | 1973-03-01 | Evg Entwicklung Verwert Ges | WIRE OR METAL TAPE CRUSHER |
US3874976A (en) * | 1973-02-02 | 1975-04-01 | Computron Inc | Gripper jaw assembly |
US3958440A (en) * | 1974-12-09 | 1976-05-25 | Frank Sassak | Universal tube bending machine |
US4002049A (en) * | 1975-06-09 | 1977-01-11 | Ready Stamping System, Inc. | Forming tool for use in a die assembly |
US4028925A (en) * | 1976-04-22 | 1977-06-14 | Man Barrier Corporation | Apparatus and method for forming barbed tape |
AT368724B (en) * | 1976-05-28 | 1982-11-10 | Hufnagl & Co Rista Draht | BENDING MACHINE FOR WIRE |
US4043165A (en) * | 1976-09-15 | 1977-08-23 | The Boeing Company | Three-point, air-bending sheet metal bender |
JPS5427189A (en) * | 1977-08-01 | 1979-03-01 | Nippon Furnace Kogyo Kk | Carrying device for pulverized coal |
DE2904885A1 (en) * | 1979-02-09 | 1980-08-14 | Rothenberger Gmbh Co | BENDING DEVICE FOR METAL PIPES |
GB2119299A (en) * | 1982-03-04 | 1983-11-16 | Pa Management Consult | Making cutting tools |
GB2116086B (en) * | 1982-03-04 | 1985-11-27 | Pa Management Consult | Making cutting tool |
US4681210A (en) * | 1984-08-23 | 1987-07-21 | Kabushiki Kaisha Komatsu Seisakusho | Apparatus for feeding bars through a bending or like processing station |
DE3433020A1 (en) * | 1984-09-07 | 1986-03-20 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Cutting tool, especially for kitchen appliances, and method and device for producing it |
US4590779A (en) * | 1984-09-18 | 1986-05-27 | Tools For Bending, Inc. | Program-controlled frame bending method and apparatus |
US4723431A (en) * | 1985-01-14 | 1988-02-09 | Serrated Rule Corp. | Method for manufacturing formed metal |
DE3508809A1 (en) * | 1985-03-12 | 1986-09-25 | Alpha Maschinenbau AG, Zürich | BENDING DEVICE |
JPS61245928A (en) * | 1985-04-23 | 1986-11-01 | Shinsei Kogyo Kk | Bending device |
DE3544056A1 (en) * | 1985-12-13 | 1987-06-25 | Helmut Dischler | BENDING MACHINE |
JPS62181835A (en) | 1986-02-04 | 1987-08-10 | Gakujo Nakamura | Workpiece bending machine |
GB2190161B (en) * | 1986-05-07 | 1990-09-19 | Ronald Edward Benton | Fluid flow or pressure transmission device |
JPH0661583B2 (en) * | 1987-06-10 | 1994-08-17 | 末弘 水河 | Bending method of band blade |
US4850212A (en) * | 1988-05-13 | 1989-07-25 | Frey Samuel W | Bending apparatus |
JP2829350B2 (en) * | 1988-07-06 | 1998-11-25 | 末弘 水河 | Bending method for plate materials |
IT1235177B (en) * | 1989-01-18 | 1992-06-23 | Piegatrici Macch Elettr | DOWNSTREAM DRIVER GROUP FOLDER GROUP AND TAIL BENDING PROCEDURE. |
IT1235176B (en) * | 1989-01-18 | 1992-06-23 | Piegatrici Macch Elettr | UPRIGHT MOBILE SHEAR, FOLDING GROUP AND TAIL BENDING PROCEDURE. |
IT1235175B (en) * | 1989-01-18 | 1992-06-23 | Piegatrici Macch Elettr | TILTING FOLDER GROUP. |
IT1234183B (en) * | 1989-03-06 | 1992-05-05 | Piegatrici Macch Elettr | BRANDABLE BENDING GROUP. |
IT1236462B (en) * | 1989-12-29 | 1993-03-09 | Fabro Giorgio Del | SATELLITE BENDING GROUP |
AT399676B (en) * | 1990-01-12 | 1995-06-26 | Evg Entwicklung Verwert Ges | BENDING MACHINE FOR BENDING ROD-SHAPED MATERIAL |
CH683598A5 (en) * | 1990-03-13 | 1994-04-15 | Mewag Maschinenfabrik Ag | Tube bending machine. |
IT1242690B (en) * | 1990-12-17 | 1994-05-17 | Piegatrici Macch Elettr | SHAPING BENDING MACHINE FOR PROFILES AND PROFILE BENDING PROCESS. |
DE4103134C2 (en) * | 1991-02-04 | 2000-12-07 | Schwarze Rigobert | Device for the production of bent sections on a pipe, in particular for the production of a pipe coil |
JP3066094B2 (en) * | 1991-02-15 | 2000-07-17 | 株式会社オグラ | Rebar bending machine |
DE4203680C1 (en) * | 1992-02-08 | 1993-05-06 | Iska Wolfgang Katz Verwaltungs-Gmbh, 7735 Dauchingen, De | |
JPH0790274B2 (en) * | 1992-05-29 | 1995-10-04 | 株式会社橘製作所 | Bending device |
US5463890A (en) * | 1992-05-29 | 1995-11-07 | Kabushiki Kaisha Tachibana Seisakusho | Automatic bending apparatus and marking device for band-shaped work |
DE69313727T2 (en) * | 1992-06-11 | 1998-03-19 | Itami Ind Co Ltd | Device for bending knife tape |
JP2754308B2 (en) * | 1993-02-01 | 1998-05-20 | 伊丹工業株式会社 | Knife bending equipment |
JPH0790276B2 (en) * | 1993-05-24 | 1995-10-04 | サンテクス株式会社 | Bending method |
US5461893A (en) * | 1993-05-28 | 1995-10-31 | Cnc Corporation | Method and apparatus for bending steel rule |
US5507168A (en) * | 1993-06-17 | 1996-04-16 | Mizukawa; Suehiro | Apparatus for bending a strip material |
DE4335901A1 (en) * | 1993-10-21 | 1995-04-27 | Schwarze Rigobert | Double-head pipe bending machine |
US5355708A (en) * | 1993-12-20 | 1994-10-18 | Kauffman Kenneth A | Straight rod stock processor |
JP3349834B2 (en) * | 1994-08-20 | 2002-11-25 | 株式会社菱屋 | Blade material bending machine |
FI94497C (en) * | 1994-08-25 | 1995-09-25 | Retermia Oy | Method of bending a heat exchanger pipe and bending machine for heat exchanger pipes |
US6003358A (en) * | 1996-10-22 | 1999-12-21 | Laser Products, Inc. | Method and apparatus for forming bends in a selected sequence |
KR100388542B1 (en) * | 2000-12-01 | 2003-06-25 | 박홍순 | Cutting blade bending apparatus capable of performing accurate acute angle |
-
1995
- 1995-06-22 KR KR1019950016975A patent/KR0182069B1/en not_active IP Right Cessation
-
1996
- 1996-06-21 US US08/668,379 patent/US5787750A/en not_active Expired - Lifetime
- 1996-06-21 DE DE19624830A patent/DE19624830C2/en not_active Expired - Fee Related
- 1996-06-24 JP JP8163483A patent/JP2760971B2/en not_active Expired - Fee Related
-
1998
- 1998-03-27 US US09/049,391 patent/US5870919A/en not_active Expired - Lifetime
-
1999
- 1999-02-10 US US09/247,408 patent/US6128940A/en not_active Expired - Lifetime
-
2000
- 2000-05-19 US US09/575,095 patent/US6405574B2/en not_active Expired - Lifetime
-
2002
- 2002-06-14 US US10/172,136 patent/US20020152788A1/en not_active Abandoned
-
2003
- 2003-05-27 US US10/445,467 patent/US20030192361A1/en not_active Abandoned
-
2006
- 2006-11-09 US US11/558,316 patent/US8327679B2/en not_active Expired - Fee Related
-
2008
- 2008-04-29 US US12/111,857 patent/US7694543B2/en not_active Expired - Fee Related
-
2012
- 2012-11-16 US US13/679,917 patent/US20130074573A1/en not_active Abandoned
-
2014
- 2014-04-14 US US14/252,324 patent/US20140338416A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JPH09225534A (en) | 1997-09-02 |
US20140338416A1 (en) | 2014-11-20 |
DE19624830C2 (en) | 2001-09-06 |
US6405574B2 (en) | 2002-06-18 |
US20020152788A1 (en) | 2002-10-24 |
US8327679B2 (en) | 2012-12-11 |
DE19624830A1 (en) | 1997-01-02 |
US7694543B2 (en) | 2010-04-13 |
US20070068212A1 (en) | 2007-03-29 |
US20030192361A1 (en) | 2003-10-16 |
US20080202188A1 (en) | 2008-08-28 |
JP2760971B2 (en) | 1998-06-04 |
US6128940A (en) | 2000-10-10 |
US20010045115A1 (en) | 2001-11-29 |
KR0182069B1 (en) | 1999-04-01 |
KR970000473A (en) | 1997-01-21 |
US5787750A (en) | 1998-08-04 |
US5870919A (en) | 1999-02-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8327679B2 (en) | Folding system for a cutting blade | |
US4367641A (en) | Apparatus for bending and twisting elongated pieces | |
JPH089063B2 (en) | Bending unit device in automatic pipe bender | |
US5259226A (en) | Mechanism for forming spring pitch | |
EP0277339B1 (en) | Apparatus for folding and pleating the edges of wrapping material | |
US5881591A (en) | Automatic channel letter bending machine | |
JPS61245928A (en) | Bending device | |
JP2002178039A (en) | Cutting blade folder excellent in forming acute angle | |
JP2002239666A (en) | Spring manufacturing device | |
JP3007085B1 (en) | Profile steel bending machine | |
US4245534A (en) | Slitter for sheet metal or the like | |
US6725700B2 (en) | Bending device and control method thereof | |
JPH1024327A (en) | Bending device | |
KR100221345B1 (en) | Bending machine | |
JPH0325992Y2 (en) | ||
US4228672A (en) | Rotary notcher and former | |
JPH021310Y2 (en) | ||
JPH0327693Y2 (en) | ||
JP2540415Y2 (en) | Paper press mechanism of paper-pving plotter | |
SU1655600A1 (en) | Three-roll asymmetrical sheet bending device | |
EP0080438A2 (en) | Flanging machine for metal sheet workpieces having hollow cylindrical symmetry | |
JPH0631347A (en) | Roller bending device | |
JP2835090B2 (en) | Printer continuous paper transport device | |
JP4679752B2 (en) | Mold unit and mold device | |
KR970073777A (en) | Double Curved Product Manufacturing Method and Apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |