WO1988009703A1 - Method of bending band knife - Google Patents
Method of bending band knife Download PDFInfo
- Publication number
- WO1988009703A1 WO1988009703A1 PCT/JP1988/000472 JP8800472W WO8809703A1 WO 1988009703 A1 WO1988009703 A1 WO 1988009703A1 JP 8800472 W JP8800472 W JP 8800472W WO 8809703 A1 WO8809703 A1 WO 8809703A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- band blade
- bending
- band
- predetermined
- angle
- Prior art date
Links
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
- 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
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- 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
- B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
- B21D5/045—With a wiping movement of the bending blade
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- 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
- B21D53/00—Making other particular articles
- B21D53/60—Making other particular articles cutlery wares; garden tools or the like
- B21D53/64—Making other particular articles cutlery wares; garden tools or the like knives; scissors; cutting blades
Definitions
- This invention is used for, for example, a so-called Tomson blade
- a curved portion having a desired radius of curvature is provided.
- the present invention relates to a method of bending to provide a bending process.
- the banded blade 1 is cut into the slits formed on the substrate 2.
- blade edge 4 of band blade 1 protrudes from substrate 2
- the Tomson blade in the figure is the above plate
- a small gap 5 is formed at the place.
- Eye 3 is cut along the contour of the same shape as that of band blade 1.
- a plurality is formed consecutively, and a cut 3 is formed.
- the formed recess 7 corresponds. Also, it is necessary for board 2.
- the pressing blade 8 for forming the fold is embedded.
- the shape of the contour formed by the plurality of cuts 3 and the shape of the band blade 1 must be exactly or almost exactly the same. If the difference between the shapes is too large, the band blade 1 cannot be embedded in the cut 3. Therefore, when it is required that the band blade 1 has a curved portion, the radius of curvature of the curved portion should be exactly or almost exactly the same as that of the curved portion of the cut 3. Need to bend.
- the present invention solves the above problems: it is an object of the present invention to provide a method that enables a beginner to easily and quickly bend a band blade into a predetermined shape without special training. are doing .
- the present invention is to intermittently feed the band blade from the outlet of the shape member, and to press the pressing tool when the feeding of the band blade is stopped.
- the band blade By moving the band blade by a predetermined width, the band blade is pressed against a forming surface of a shape provided at the outlet, and is bent at a predetermined angle.
- the band blades are intermittently sent out from the outlet of the shape material, so that predetermined intervals of the band shape are successively formed on the molding surface of the shape material provided at the outlet. Will be opposed. Also, when the feeding of the band blade is stopped, when the pressing tool is moved by a predetermined width, the band blade is pressed against the forming surface and bent at a predetermined angle.
- the bending angles at a plurality of portions of the band blade opposing the forming surface are inconsistent and uniform. Therefore, by limiting the bending angle and the number of times of bending of the band blade, a curved portion having a desired radius of curvature can be accurately formed. For example, between the band blades ⁇ : If the feeding width is kept constant, an arc-shaped curved portion having a desired radius of curvature can be accurately formed only by controlling the bending angle.
- the band blade can be easily and accurately bent into a curved shape having any radius of curvature, This makes it easy for beginners who are not trained to perform the bending process, not only for skilled workers. In addition, it is possible to perform bending while controlling it with a computer. Therefore, it is possible to bend a complex shape that would be extremely difficult in the past.
- FIGS. 1A to 1D are explanatory views showing the procedure of a bending method according to an embodiment of the present invention
- FIG. 2 is a band bent and bent according to the procedure of FIGS. 1A to 1D
- FIG. 3 is a side view showing a curved portion of the blade
- FIG. 3 is an exploded perspective view of a Thomson blade
- FIG. 4 is an explanatory view showing a conventional bending method.
- FIG. 1A to FIG. 1D show a procedure for performing bending according to the present invention.
- reference numeral 20 denotes a mold material, which is provided with a sharply-pointed molding surface 21 at a corner portion of the outlet.
- Reference numeral 22 denotes a pressing tool, which is provided so as to be able to approach and separate along the arc path A-A shown in FIG.
- Reference numeral 23 denotes a feed roller which can feed the band blade 1 in a luxurious manner. '
- the feed roller 23 is rotated by a predetermined angle to feed the band blade 1 from the outlet of the profile 20.
- the predetermined rotation angle of the feed roller 23 is set so that the feed of the band blade 1 is stopped only when the predetermined position Pi of the band blade 1 faces the above-mentioned forming surface 2 U. Angle.
- the banding tool 1 is pressed against the forming surface 21 by moving the pressing tool 22 rightward along the arc path A—A by a predetermined amount as shown in FIG. 1B. Predetermined angle at above location Bend only once.
- the pusher 22 is retracted to the original position, and the feed roller 23 is rotated again by a predetermined angle to feed the band blade 1 again.
- Obiha 1 is already stopped skip forward the point P 2 has a predetermined width such that the point that is bent Ri folded to face the said molding surface 2 1.
- the banding blade 1 is pressed against the forming surface 21 by moving the pressing tool 22 rightward again by a predetermined amount, thereby pressing the banding blade 1 against the forming surface 21 by a predetermined angle. Bend and bend.
- the band blade 1 is bent at a plurality of locations at predetermined intervals, and is bent into a curved shape as a whole.
- the number of bends is calculated from the radius of curvature and the force of the desired curved part, both of these factors can be calculated. Accurate bending can be performed as a factor. Note that the bending angle of the band blade 1 that is bent by one pressing of the pressing tool 22 needs to take into consideration the spring back of the band blade 1. That is, the predetermined bending angle by the pressing tool 22 is set to an angle obtained by adding the desired bending angle with respect to the band blade 1 and the restoring angle by the springback.
- the molding surface 21 is sharply pointed at an acute angle smaller than a right angle, and that the pressing tool 22 is configured to move along the arc path A-A. That is, when the band blade 1 is bent, the band blade 1 is slightly restored after being bent by the sliding knock, so that the pressing tool 22 passes below the forming surface 21. After that, if the band blade 1 is moved slightly upward along the arc path A-A and the band blade 1 is bent at an acute angle smaller than a right angle by the pressing tool 22, the pressing tool 22 is retracted. Later, the band blade 1 is restored at a right angle by the spring back.
- FIG. 2 shows a curved portion of the band blade 1 which is bent by the above-described procedure.
- A is the opening angle of both ends of the arcuate curved portion formed by bending
- a is the mutual opening angle of the part bent by the pressing of the pusher 22. This divides the above opening angle A equally It is the angle of one minute.
- R is the radius of curvature of the bay ill] portion.
- the bending method of the band blade according to the present invention the pattern of the feeding amount of the band blade from the die outlet and the predetermined moving amount of the pressing tool is input in advance. Accordingly, the bending can be controlled by a computer, and it is possible to cope with the bending of a considerably complicated shape.
Abstract
This invention discloses a method of bending a band knife, comprising the step of forming a bent portion of a predetermined angle on a band knife (1), which is sent out intermittently from an outlet of a mold (20), by using a push member (22) which can be moved a predetermined width, and a molding surface (21) provided at the outlet of the mold (20), while the feeding of the band knife (1) is stopped, whereby a desired arcuate shape can be easily obtained.
Description
Θϋΐ 細 - 帯刃の仙げ加ェ方法 技 術 分 野 -Fine-Band cutting method
こ の発明は、 例えば所謂 ト ム ソ ン刃木型等に用い ら This invention is used for, for example, a so-called Tomson blade
れる よ う な帯刃 を 、 所望の曲率半径を有する 湾曲部分 A curved portion having a desired radius of curvature is provided.
を備え る よ う に曲げ加工する方法に関する 。 The present invention relates to a method of bending to provide a bending process.
背 景 技 術 . 木、 紙、 布、 皮革、 アラ スチ ッ ク等の板材を所定の . Background technology: Wood, paper, cloth, leather, alasic, etc.
形状に打ち抜いた り それらの板材に所定の形状の切 り Punched into shapes or cut into prescribed shapes in those plates
目 を形成 した り する と き に使用 される ト ム ソ ン刃木型 Tomson blades used to form eyes
は、 第 3 図から類推でき る よ う に所定形状に曲げ力！^ェ Is a bending force in a predetermined shape as can be inferred from Fig. 3! ^ E
された帯刃 1 を基板 2 に形成さ れたス リ ッ 卜状の切 り The banded blade 1 is cut into the slits formed on the substrate 2.
目 3 に押 し込んで基板 2 に埋め込むこ と に よ り 製作さ It is manufactured by pressing it into the eye 3 and embedding it in the substrate 2.
れ、 完成品では、 帯刃 1 の刃先 4 が基板 2 から突出 し In the finished product, blade edge 4 of band blade 1 protrudes from substrate 2
た構成になっ て いる 。 同図の ト ム ソ ン刃木型は上記板 Configuration. The Tomson blade in the figure is the above plate
材に所定の形状の切 り 目 を形成する ための も のであ り 、 そのために帯刃 1 は複数 ϋ所で分割され、 その分割個 This is for forming a notch of a predetermined shape in the material, so that the band blade 1 is divided into a plurality of locations, and the divided
所には小幅の隙間 5 が形成されて いる 。 さ ら に、 切 り A small gap 5 is formed at the place. In addition,
目 3 は帯刃 1 の形状と 同一の形状の輪郭線に沿つ て断 Eye 3 is cut along the contour of the same shape as that of band blade 1.
続的に複数形成されて お り-、 切 り 目 3 が形成さ れて い A plurality is formed consecutively, and a cut 3 is formed.
ない切 り 目 な し部分 6 には上記隙間 5 又は帯刃 1 に形 No gap 6 is formed in the above gap 5 or band blade 1
成された凹部 7 が対応する 。 ま た 、 基板 2 には必.要に The formed recess 7 corresponds. Also, it is necessary for board 2.
応 じて折 り 目形成用の押 し刃 8 が埋め込まれる 。
このよ う な トム ソ ン刃木型を製作する場合、 複数の 切り 目 3 によ り形成される輪郭線の形状と帯刃 1 の形 状は正確又はほぼ正確に同一でなければならず、 それ らの形状の差異が大き過ぎる と切り 目 3へ帯刃 1 を埋 め込むこ とができない。 従って 、 帯刃 1 に湾曲 した部 分を具備させるこ とが要求される と き にはその湾曲部 分の曲率半径が切り 目 3の湾曲部分のそれと正確又は ほぼ正確に同一になる よ う に曲げ加工する必要がある 。 Accordingly, the pressing blade 8 for forming the fold is embedded. When manufacturing such a Tomson blade, the shape of the contour formed by the plurality of cuts 3 and the shape of the band blade 1 must be exactly or almost exactly the same. If the difference between the shapes is too large, the band blade 1 cannot be embedded in the cut 3. Therefore, when it is required that the band blade 1 has a curved portion, the radius of curvature of the curved portion should be exactly or almost exactly the same as that of the curved portion of the cut 3. Need to bend.
従来、 帯刃 1 を曲げ加工して湾曲部分を形成する場 合には、 第 4図のよ う に下型 1 0を形成した溝形凹所 1 1 の上に仮想線で示すよ う に曲げ加工前の帯刃 1 を置き 、 上型 1 2でその帯刃 1 を加減しながら叩いて凹所 1 1内へ 凹ませる と共に、 同様の成形作業を帯刃の所定幅内の 複数個所に施していた。 Conventionally, when bending the band blade 1 to form a curved portion, as shown by an imaginary line above the groove-shaped recess 11 where the lower die 10 is formed as shown in FIG. Place the band blade 1 before bending, beat it with the upper die 12 while adjusting the band blade 1 and dent it into the recess 1 1, and perform the same forming work at multiple places within the predetermined width of the band blade. Had been given.
しかしながら 、 上述した従来の方法は、 帯刃を叩い て凹ませる と きの力加減が難しく 、 このこ とが帯刃に スア リ ングバッ クが具備されている こ と と も相ま って、 所望の曲率半径を有する湾曲部分を正確に形成するの に高度な技量と熟練を必要と し、 誰でもが簡単に行う こ とができないと いう 問題があった。 However, in the above-mentioned conventional method, it is difficult to control the force when hitting and denting the band blade, and this is desirable because the band blade is provided with a sliding back. A high degree of skill and skill was required to accurately form a curved portion having a radius of curvature, and there was a problem that it could not be easily performed by anyone.
この発明は以上の問題を解決する もので:、 特別な訓 練なく 、 初心者でも簡単かつ迅速に帯刃を所定の形状 に曲げ加工する こ とが可能な方法を提供する こ と を 目 的と している 。 The present invention solves the above problems: it is an object of the present invention to provide a method that enables a beginner to easily and quickly bend a band blade into a predetermined shape without special training. are doing .
発 明 の 開 示
すなわち 、 本発明は上記目 的を達成する ために 、 型 材の出 口から帯刃 を間欠的に送 り 出 しつつ、 帯刃の送 り が停止されて いる と き に、 押 し具を所定幅だけ移動 させる こ と によ り 上記帯刃 を上記出 口 に具備された型 材の成形面に押 し付けて所定角度だけ折 り 曲げる よ う に した も であ る 。 Disclosure of the invention That is, in order to achieve the above-mentioned object, the present invention is to intermittently feed the band blade from the outlet of the shape member, and to press the pressing tool when the feeding of the band blade is stopped. By moving the band blade by a predetermined width, the band blade is pressed against a forming surface of a shape provided at the outlet, and is bent at a predetermined angle.
以上のよ う にする と 、 型材の出口から帯刃 を間欠的 に送 り 出すこ と によ り 、 帯刃の所定間隔お き の個所が 次々 と 上記出口に具備された型材の成形面に対向 され る 。 ま た 、 帯刃の送 り が停止されて いる と き に 、 押 し 具を所定幅だけ移動させる こ と によ り 上記帯刃 を上記 成形面に押 し付けて所定角度だけ折 り 曲げる と 、 上述 のよ う に 欠々 と 成形面に対向 された帯刃の複数個所の 曲が り 角度がずベて 同一にな'る 。 従っ て 、 帯刃の一回 の折曲げ角度と 折曲げ回数を制限する こ と によ り 所望 の曲率半径を有する湾曲部分が正確に形成される 。 咧 えば帯刃の間 ^:送 り 幅を一定に して おけば、 折曲げ角 度を制御する だけで所望の曲率半径を有する 円弧状の 湾曲部分が正確に形成される 。 By doing so, the band blades are intermittently sent out from the outlet of the shape material, so that predetermined intervals of the band shape are successively formed on the molding surface of the shape material provided at the outlet. Will be opposed. Also, when the feeding of the band blade is stopped, when the pressing tool is moved by a predetermined width, the band blade is pressed against the forming surface and bent at a predetermined angle. However, as described above, the bending angles at a plurality of portions of the band blade opposing the forming surface are inconsistent and uniform. Therefore, by limiting the bending angle and the number of times of bending of the band blade, a curved portion having a desired radius of curvature can be accurately formed. For example, between the band blades ^: If the feeding width is kept constant, an arc-shaped curved portion having a desired radius of curvature can be accurately formed only by controlling the bending angle.
よ っ て 、 本発明の帯刃の曲げ加工方法によ れば、 帯 刃 を どのよ う な曲率半径を有する湾曲形状にでも 簡単 かつ正確に折 り 曲げる こ とおでき る よ う にな り 、 しカゝ も その曲げ加ェを熟練者に限 らず特別な訓練を受けて いない初心者でも 簡単に行え る よ う になる 。 ま た 、 曲 げ加工を コ ン ピュータ で制御 しなが ら行 う こ と が可能
となるので、 従来では極めて困難を伴う よ う な複雜な 形状の曲げ加工を も行える 。 Therefore, according to the band blade bending method of the present invention, the band blade can be easily and accurately bent into a curved shape having any radius of curvature, This makes it easy for beginners who are not trained to perform the bending process, not only for skilled workers. In addition, it is possible to perform bending while controlling it with a computer. Therefore, it is possible to bend a complex shape that would be extremely difficult in the past.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
第 1 A図〜第 1 D図はこの発明の実施例によ る 曲げ 加工方法の手順を示す説明図、 第 2図は第 1 A図〜第 1 D図の手順に従って曲げ加ェされた帯刃の湾曲部分 を示す側面図、 第 3図は トムソ ン刃木型の分解斜視図、 第 4図は従来の曲げ加工方法を示す説明図である 。 1A to 1D are explanatory views showing the procedure of a bending method according to an embodiment of the present invention, and FIG. 2 is a band bent and bent according to the procedure of FIGS. 1A to 1D. FIG. 3 is a side view showing a curved portion of the blade, FIG. 3 is an exploded perspective view of a Thomson blade, and FIG. 4 is an explanatory view showing a conventional bending method.
発明を実施するための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
第 1 A図〜第 1 D図はこの発明の曲げ加工を行う 手 順を示 している 。 同図において 、 20は型材で、 その出 口のコーナ部分に鋭角状に尖った成形面 2 1が具備され ている 。 22は押し具で、 上記成形面 2 Uこ対し第 1 A図 に咧示した円弧経路 A - Aに沿つて接近離反可能に設 けられている 。 23は帯刃 1 に閭欠的に送り をかけるこ とができ る送 り.ローラである 。 ' FIG. 1A to FIG. 1D show a procedure for performing bending according to the present invention. In the figure, reference numeral 20 denotes a mold material, which is provided with a sharply-pointed molding surface 21 at a corner portion of the outlet. Reference numeral 22 denotes a pressing tool, which is provided so as to be able to approach and separate along the arc path A-A shown in FIG. Reference numeral 23 denotes a feed roller which can feed the band blade 1 in a luxurious manner. '
以上において、 まず、 第 1 A図のよ う に送 り ローラ 23を所定角度だけ回転させて型材 20の出口から帯刃 1 を送りだすよ う にする 。 こ こで、 送り ローラの 23の所 定回転角度は、 これによ つて帯刃 1 の所定個所 P i が 上記成形面 2 Uこ対向 したと こ ろで帯刃 1 の送り が停止 されるだけの角度とする 。 In the above, first, as shown in FIG. 1A, the feed roller 23 is rotated by a predetermined angle to feed the band blade 1 from the outlet of the profile 20. Here, the predetermined rotation angle of the feed roller 23 is set so that the feed of the band blade 1 is stopped only when the predetermined position Pi of the band blade 1 faces the above-mentioned forming surface 2 U. Angle.
続いて押 し具 22を第 1 B図のよ う に円弧経路 A— A に沿って右方向へ所定量だけ移動させる こ と によ り 、 帯刃 1 を成形面 2 1に押 し付けて上記個所 を所定角
度だけ折 り 曲げる 。 Subsequently, the banding tool 1 is pressed against the forming surface 21 by moving the pressing tool 22 rightward along the arc path A—A by a predetermined amount as shown in FIG. 1B. Predetermined angle at above location Bend only once.
こ の後、 第 1 C 図のよ う に押 し具 22を元の位置ま で 後退さ せる一方、 再度送 り ロー ラ 23を所定角度だけ回 転させて帯刃 1 を送 り 出す。 これによ つ て 、 帯刃 1 は 既に折 り 曲げられて いる 個所 から所定幅だけはな れた個所 P 2 を上記成形面 2 1に対向 させて送 り を停止 される 。 Thereafter, as shown in FIG. 1C, the pusher 22 is retracted to the original position, and the feed roller 23 is rotated again by a predetermined angle to feed the band blade 1 again. And One by this, Obiha 1 is already stopped skip forward the point P 2 has a predetermined width such that the point that is bent Ri folded to face the said molding surface 2 1.
そ して 、 第 1 D 図に示すよ う に、 再び押 し具 22を右 方向へ所定量だけ移動さ せる こ と によ り 帯刃 1 を成形 面 2 1に押 し付けて所定角度だけ折 り 曲げる 。 Then, as shown in FIG. 1D, the banding blade 1 is pressed against the forming surface 21 by moving the pressing tool 22 rightward again by a predetermined amount, thereby pressing the banding blade 1 against the forming surface 21 by a predetermined angle. Bend and bend.
以上の操作を繰 り 返すと 、 帯刃 1 が所定間隔お き の 複数個所で折 り 曲げられ、 全体 と して湾曲形状に曲げ 加工される 。 When the above operation is repeated, the band blade 1 is bent at a plurality of locations at predetermined intervals, and is bent into a curved shape as a whole.
上述の方法にお いて 、 押 し具 22の移動幅 H を一定に しておけば、 带刃,の各個所 （ P i ， P 2 … ） の一回の 折曲げ角度は同一 と なる 。 ま た 、 送 り ロー ラ 23によ る 帯刃 1 の間欠送 り 幅 D を一定に しておけば、 折 り 曲げ られる各個所 （ P i , P 2 … ） の相互間隔は同一にな る 。 このこ と よ り 、 円弧状の湾曲部分を 曲げ加工する 場合には、 ί列えば帯刃 1 の曲げ加工を施す部分を等分 割 した個所が上記成形面 2 1に次々 と 対向 される よ う に 帯刃の間欠送 り 幅 D を決め _る と 共に 、 押 し具 22の一回 の押 し付けによ り 折 り 曲げられる帯刃 1 の折曲げ角度 と 曲げ加ェによ り 形成 した い湾曲部分の曲率半径と 力 ら折曲げ回数を算出 してお けば、 これ ら両方の要素を
因子と して正確な曲げ加工を行う こ とが可能になる 。 なお、 押 し具 22の一回の押し付けによ り折り 曲げら れる帯刃 1 の曲がり角度には、 帯刃 1 のスプ リ ングバ ッ ク を考慮しておく必要がある 。 すなわち、 押し具 22 によ る所定折り 曲げ角度は、 帯刃 1 に対する所望折り 曲げ角度とスプリ ングバッ クによ る復元角度を加算し た角度と しておく 。 In the above-described method, if the moving width H of the pressing tool 22 is kept constant, the bending angle of each point (P i, P 2...) Of the blade becomes the same. Also, if the intermittent feed width D of the band blade 1 by the feed roller 23 is kept constant, the mutual intervals of the bent portions (P i, P 2…) become the same. . Accordingly, when bending an arcuate curved portion, if the rows are arranged, the portions where the bending process of the band blade 1 is equally divided are successively opposed to the forming surface 21. The intermittent feeding width D of the band blade is determined as described above, and at the same time, the band is formed by the bending angle and the bending angle of the band blade 1 which is bent by one pressing of the pressing tool 22. If the number of bends is calculated from the radius of curvature and the force of the desired curved part, both of these factors can be calculated. Accurate bending can be performed as a factor. Note that the bending angle of the band blade 1 that is bent by one pressing of the pressing tool 22 needs to take into consideration the spring back of the band blade 1. That is, the predetermined bending angle by the pressing tool 22 is set to an angle obtained by adding the desired bending angle with respect to the band blade 1 and the restoring angle by the springback.
また、 帯刃 1 を直角に曲げ加工する と き には、 押し 具 22の移動幅 Hを大き くする こ とが必要で、 そのよ う な直角の曲げ加工を行なう に際 しては、 上記成形面 2 1 が直角よ り小さい鋭角状に尖つてお り 、 しかも押し具 22が上記円弧経路 A— Aに沿つて移動する よ う に構成 されている こ とが役立つ。 即ち、 帯刃 1 折 り 曲げた と き にはその帯刃 1 がスアリ ングノ ッ ク によ つ'て折 り 曲げ後にやや復元するから 、 押 し具 22が上記成形面 2 1 の下を通過した後にさ らに円弧経路 A— Aに沿ってや や上向き に移動して帯刃 1 を押し具 22によ って直角よ 小さい鋭角に折 り 曲げておけば、 押し具 22が後退し た後には帯刃 1 がスプリ ングバッ クによ って直角に復 元するからである 。 Further, when bending the band blade 1 at a right angle, it is necessary to increase the movement width H of the pusher 22. When such a right angle bending process is performed, It is useful that the molding surface 21 is sharply pointed at an acute angle smaller than a right angle, and that the pressing tool 22 is configured to move along the arc path A-A. That is, when the band blade 1 is bent, the band blade 1 is slightly restored after being bent by the sliding knock, so that the pressing tool 22 passes below the forming surface 21. After that, if the band blade 1 is moved slightly upward along the arc path A-A and the band blade 1 is bent at an acute angle smaller than a right angle by the pressing tool 22, the pressing tool 22 is retracted. Later, the band blade 1 is restored at a right angle by the spring back.
第 2図は上述した手順で曲げ加ェされた帯刃 1 の湾 曲部分を示している 。 同図—において 、 Aは曲げ.加ェに よ り形成された円弧状の湾曲部分の両端部の開き角度、 aは押し具 22の押し付けによ り折り 曲げられた個所相 互の開き角度で、 これは上記開き角度 Aを等分割 した
と き の一つ分の角度であ る 。 ま た 、 r は湾 ill]部分の曲 率半径であ る 。 FIG. 2 shows a curved portion of the band blade 1 which is bent by the above-described procedure. In the same figure, A is the opening angle of both ends of the arcuate curved portion formed by bending, and a is the mutual opening angle of the part bent by the pressing of the pusher 22. This divides the above opening angle A equally It is the angle of one minute. R is the radius of curvature of the bay ill] portion.
産業上の利用可能性 Industrial applicability
本発明によ る帯刃の曲げ加ェ方法によれば、 型材出 口からの帯刃の送 り 出 し量や押 し具の所定移動量のパ タ ー ンを予めイ ンプ ッ トする こ と によ り 、 曲げ加工を コ ン ピ ュータ制御する こ と ができ 、 かな り 複雑な形状 の曲げ加工に も対応する こ と が可能と なる 。
According to the bending method of the band blade according to the present invention, the pattern of the feeding amount of the band blade from the die outlet and the predetermined moving amount of the pressing tool is input in advance. Accordingly, the bending can be controlled by a computer, and it is possible to cope with the bending of a considerably complicated shape.
Claims
1 . 型材の出口から帯刃を間欠的に送り 出しつつ、 帯刃 送りが停止されている と き に、 押し具を所定幅 だけ移動させる こ とによ り上記帯刃を上記出口に具備 された型材の成形面に押 し付けて所定角度だけ折り 曲 げる こ と を特徴とする帯刃の曲げ加ェ方法。 1. While the band blade is intermittently fed from the exit of the profile, when the band blade feeding is stopped, the band blade is provided at the outlet by moving the pressing tool by a predetermined width. A method of bending a band blade, wherein the band is pressed against a forming surface of a shaped material and bent at a predetermined angle.
2 . 押し具の所定移動量が、 帯刃に対する所望折り 曲げ角度と帯刃のスプリ ングバッ クによる復元角度を 加算した所定角度だけ帯刃を折り 曲げる移動幅と され ている こ と を特徴とする請求の範囲第 1項記載の帯刃 の曲げ加工方法。 2. The predetermined moving amount of the pusher is a moving width for bending the band blade by a predetermined angle obtained by adding a desired bending angle to the band blade and a restoring angle of the band blade by the springback. The method for bending a band blade according to claim 1.
3 . 出口のコーナー部に鋭角状に尖った成形面を具 備する型材を用いている こ と を特徴とする請求の範囲 第 1 項記載の帯刃の曲げ加工方法。 3. The method for bending a band blade according to claim 1, wherein a shape member having a sharply-pointed forming surface at a corner of the outlet is used.
4 . 押 し具を円弧経路に沿って所定幅だけ移動させる こ と を特徴とする請求の範囲第 1 項記載の帯刃の曲げ 加工方法。 _ 4. The method for bending a band blade according to claim 1, wherein the pressing tool is moved by a predetermined width along an arc path. _
5 . 帯刃の型材出口からの送 り 出 し量と押し具の所定 移動幅のデータをィ ンアツ ト したコ ンピュータによ つ て制御される こ と を特徴とする請求の範囲第 1項記載 の帯刃の曲げ加工方法。 5. The method according to claim 1, wherein the data on the amount of the band blade sent out from the shape material outlet and the predetermined moving width of the pusher is controlled by a computer in which the data is input. Bending method of band blade.
6 - 出口のコーナー部に _鋭角状に尖った成形面を具 備する型材を用いている こ と を特徴とする請求の範囲 第 2項記載の帯刃の曲げ加工方法。 6-The method for bending a band blade according to claim 2, wherein a shape member having a sharply shaped forming surface is used at a corner portion of the outlet.
Ί . 押し具を円弧経路に沿って所定幅だけ移動させる
こ と を特徴と する請求の範囲第 6 項記載の帯刃の曲げ 加ェ方法。 Ί. Move the pusher by a specified width along the arc path 7. The method for bending a band blade according to claim 6, wherein the band blade is bent.
8 . 帯刃の型材出 口からの送 り 出 し量と 押 し具の所定 移動幅のデータ を ィ ンプ ッ ト した コ ン ピュータ に よ つ て制御される こ と を特徴 と する請求の範囲第 7 項記載 の帯刃の曲げ加ェ方法。
8. A claim characterized in that the data of the amount of the band blade to be sent out from the shape material outlet and the predetermined moving width of the pusher are controlled by a computer which inputs the data. The method for bending a band blade according to item 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62145668A JPH0661583B2 (en) | 1987-06-10 | 1987-06-10 | Bending method of band blade |
| JP62/145668 | 1987-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1988009703A1 true WO1988009703A1 (en) | 1988-12-15 |
Family
ID=15390322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1988/000472 WO1988009703A1 (en) | 1987-06-10 | 1988-05-18 | Method of bending band knife |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0317637A4 (en) |
| JP (1) | JPH0661583B2 (en) |
| WO (1) | WO1988009703A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507168A (en) * | 1993-06-17 | 1996-04-16 | Mizukawa; Suehiro | Apparatus for bending a strip material |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9103814A (en) * | 1991-08-30 | 1993-03-30 | Brasil Compressores Sa | PLASTICALLY DEFORMABLE BODY BENDING PROCESS |
| US5463890A (en) * | 1992-05-29 | 1995-11-07 | Kabushiki Kaisha Tachibana Seisakusho | Automatic bending apparatus and marking device for band-shaped work |
| JPH0790274B2 (en) * | 1992-05-29 | 1995-10-04 | 株式会社橘製作所 | Bending device |
| DE69313727T2 (en) * | 1992-06-11 | 1998-03-19 | Itami Ind Co Ltd | Device for bending knife tape |
| JPH07108412B2 (en) * | 1993-02-15 | 1995-11-22 | 伊丹工業株式会社 | Knife bending machine |
| JPH0790276B2 (en) * | 1993-05-24 | 1995-10-04 | サンテクス株式会社 | Bending method |
| JP3349834B2 (en) * | 1994-08-20 | 2002-11-25 | 株式会社菱屋 | Blade material bending machine |
| KR0182069B1 (en) * | 1995-06-22 | 1999-04-01 | 송병준 | Bent-up system of cutting blade |
| JP2004090039A (en) * | 2002-08-30 | 2004-03-25 | Komatsu Ltd | Method for bending tubular material having special-shaped cross section for cab frame |
| US20050005664A1 (en) | 2003-07-09 | 2005-01-13 | Wesley Scott | System and method for bending strip material to create cutting dies |
| AT501151B8 (en) * | 2004-11-24 | 2007-02-15 | Univ Fuer Angewandte Kunst Wie | METHOD FOR CONTROLLING BENDING MACHINES |
| CN103048948B (en) * | 2012-12-25 | 2015-03-25 | 南通恒康数控机械有限公司 | Calculation method of automatic twisting points of ring cutter numerical control software |
| CN104889202B (en) * | 2015-06-10 | 2017-09-12 | 昌利数控设备（深圳）有限公司 | Knives bending machine wide-angle bent blade device and knives bending machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1024224B (en) * | 1974-11-15 | 1978-06-20 | Del Fabbro Remigio | MAOCHINA CONTINUOUS SUPPLY SUPPLY BRACKET WITH MATERIAL RECOVERY AND RELEVANT ME TODO OF OBERARE FOR THE QUSTRUTION OF THE SAID BRACKETS |
| GB2119299A (en) * | 1982-03-04 | 1983-11-16 | Pa Management Consult | Making cutting tools |
| GB8303954D0 (en) * | 1983-02-12 | 1983-03-16 | Pa Management Consult | Bending metal strip |
-
1987
- 1987-06-10 JP JP62145668A patent/JPH0661583B2/en not_active Expired - Lifetime
-
1988
- 1988-05-18 WO PCT/JP1988/000472 patent/WO1988009703A1/en not_active Application Discontinuation
- 1988-05-18 EP EP19880904610 patent/EP0317637A4/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0317637A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507168A (en) * | 1993-06-17 | 1996-04-16 | Mizukawa; Suehiro | Apparatus for bending a strip material |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0317637A1 (en) | 1989-05-31 |
| JPS63309328A (en) | 1988-12-16 |
| EP0317637A4 (en) | 1989-10-17 |
| JPH0661583B2 (en) | 1994-08-17 |
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