CA2359021C - Device for shrinking a shrink-wrap film - Google Patents
Device for shrinking a shrink-wrap film Download PDFInfo
- Publication number
- CA2359021C CA2359021C CA002359021A CA2359021A CA2359021C CA 2359021 C CA2359021 C CA 2359021C CA 002359021 A CA002359021 A CA 002359021A CA 2359021 A CA2359021 A CA 2359021A CA 2359021 C CA2359021 C CA 2359021C
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- CA
- Canada
- Prior art keywords
- shrink
- foil
- nozzle
- heat
- shrinking
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
- B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
- B65B53/066—Mobile frames, hoods, posts or the like
Abstract
The invention relates to a device for shrinking a shrink-wrap film wrapped around a notably palletized stack of goods. To further develop such a device in such a way that the shrinkage of the upper and/or lower excess film is improved and optimal crease-free shrinkage is obtained, the invention provides for a device for shrinking a shrink-wrap film (26) wrapped around a notably palletized stack of goods (12), which device comprises at least one shrinking device (3) which can be moved up and down along a frame (2) and is designed to heat and shrink the shrink-wrap film in the vertical direction. The shrink- wrap film protrudes over the upper and/or lower edges of the stack of goods such that an upper and lower shrinkage can be formed. The device provided for in the invention also comprises at least one nozzle (19) which can be connected to a compressed gas source, notably a compressed air source, and is positioned approximately centrally above and/or below the stack of goods. Each nozzle has discharge holes (21) which are situated at an angle to the direction of flow inside the nozzle and are arranged in a substantially circular manner.
Description
DEVICE FOR SHRINKING A SHRINK-WRAP FILM
The invention relates to an apparatus for shrinking a heat-shrink foil in particular wrapped around a palleted stack of objects.
Such heat-shrink foils are used nowadays in order, for example, to secure objects for example to a pallet for transport.
To this end a heat-shrink foil is wrapped around the stack of objects so that the heat-shrink foil does not slip down. This is done either directly in a shrink station or in a separate station upstream of the shrink station.
in the shrink station the heat-shrink foil is blasted by the shrink device with hot gas so that the heat-shrink foil is heated to its shrink temperature and is shrunk so as to pull together around the stack of objects. The shrink device is thus movable vertically up and down so that shrinking can take place from top to bottom or from bottom to top. During shrinking air is blow partially on the stack of objects from above.
US patent 4,616,471 describes an apparatus for shrining a heat-shrink foil forming a hood over a palleted object stack that is formed of at least one shrink device movable vertically up and down on a frame, the heat-shrink foil projecting past the lower face of the object stack.
A disadvantage is that this apparatus cannot produce a fold-free shrinking of the portion of the heat-shrink foil that projects above the top of the stack of objects so that for example a packing slip on the upper side of the stack of objects between the stack of objects and the heat-shrink foil, which carries a bar code, cannot be read.
It is an object of the invention to %m.prove on an appara-tus of the described type so that shrinking of the porta.on of the foil projecting upwarc3.andjor downward is improved to produce an optimal fold-free shrink.
5. This object is attained by an apparatus for shrinking a heat-shrink foil wrapped in particular about a palleted object stack comprising at least one sbrink device movable vertically up and down on a frame to heat and vertically shri.nk the heat-shrink foil, the heat-shrink foil projecting past the upper and/or lower edge of the object stack to form an upper and/or lower shrink formation, characterized in that the apparatus further comprises at least one nozzle connectable to a compressed-gas, especially a compressed-air source and aimed centrally above and/or below the object stack and generally vertically directed thereat, each nozzle I5 having outlet openings that extend at an angle not coinciding with the flow direction inside the nozzle and that are ias an annular array.
As a result of the angle of the outlet openi.ugs of the nozzles to the flow direction, the compressed air ,is aot blown perpendicularly against the upper face of the object stack. Rather the compressed air ia directed either obliquely against the upper surface and is there defleeted against the projecting part of the foil, or -- so long as the outlet opea.ings open generally at a 900 angle to the flow direction iaside the.noxzle -- is blown directly against the projecting foil part. .l,s a result the projecting foil part is held up dura.ng the upper shrink phase so that it is uni-formly heated by the shrink device during this upper shrink phase.
_ 2 _ As a result of this uniform heating the projecting foil part shrinks without folds onto the upper side of the object stack.
Preferably each nozzle has a beveled end face in which the outlet openings are provided so that the compressed air is directed at this angle in all directions. The outlet openings extend generally at an angle of 450 to the flow direction in the nozzle.
In order that object stacks of different size can be provided with a shrunk foil in the shrink station, each nozzle is movable up and down. As a result the ideal spacing between the nozzle and the object stack can be set for the height of the object stack and/or the dimension of the upper face of the object stack.
In order to avoid that the unshrunk heat-shrink foil slides downward, it is further provided that the apparatus for securing the heat-shrink foil on the object stack has a pressing device that preferably is mounted on a lift table for lifting the object stack.
According to an aspect of the present invention there is provided an apparatus for shrinking a heat-shrink foil wrapped about an object stack, the apparatus comprising at least one shrink device movable vertically up and down on a frame to heat and shrink the heat-shrink foil, the heat-shrink foil projecting past at least one of an upper and a lower edge of the object stack to form at least one of an upper and a lower shrink formation, at least one nozzle connectable to a compressed-gas source, each nozzle having outlet openings that extend at an angle not coinciding with the flow direction inside the nozzle and that are in an annular array.
In the following an embodiment shown in the drawing is described. Therein:
FIG. 1 is a side view of an apparatus according to the invention;
FIG. 2 is a view through the output part of a nozzle; and FIG. 3 is a section through the structure of FIG. 2.
21927 PCT/EP00/00444 Transl. of WO 00/44626 In the figures the same reference numerals are used for the same parts.
FIG. 1 shows a shrink station 1 that is formed of a frame 2 and a shrink device 3, e.g. constituted as a ring burner.
The frame 2 has two masts 4 arranged next to another in a plane perpendicular to the view plane and of which only the front one is visible in this view. Both masts 4 are connected together at their upper ends by an unillustrated traverse.
Each mast 4 carries a vertically movable carriage 5 guided by rollers 6 and 7. The carriages 5 are moved vertically by endless chains 8 looped at the upper and lower ends of the masts 4 over sprockets 9 and 10.
A motor 11 provided in the lower region of the masts 4 drives the chains 8, both carriages 5 being moved synchronously so that they are always at the same height.
The carriages 5 are connected together by the shrink device 3 which has a shape corresponding to the footprint of a stack 12 of objects -- in the illustrated example a polygonal frame-like shape -- where the area inside the shrink device 3 is large enough that it can be moved vertically along the object stack 12.
Such an object stack 12 is underneath the shrink device 3 on a conveyor 13 that is formed for example as a chain, roller, or bar conveyor. The object stack 12 is comprised of a standard pallet 14 and a stack 15 of objects on it. If objects 15 of substantial size need to be packaged, no pallet 14 is needed.
21927 PCT/EP00/00444 Transl. of WO 00/44626 Underneath the object stack 12 is a lift platform or table 16 on whose upper side a lift ram 17 can engage through an aperture in the conveyor upward between the unillustrated support members of the pallet 14. A suction blower can be provided in the region of the ram 17 and underneath the conveyor 13.
Both above and below the object stack 12 is a nozzle 19 that can also move up and down. Each nozzle 19 is as shown in FIG.
2 of blunt shape and has an annular beveled edge face 20 that extends at an angle of about 45 to the flow direction inside the nozzle 19. Openings 21 in this edge face 20 direct jets of com-pressed air at an angle at the object stack 12 (arrow 22). As shown in FIG. 3 the outlet openings 21 extend like a star from a supply passage 23 provided centrally in the nozzle 19.
When the compressed air strikes the upper side of the object stack 12 it is deflected as shown by arrows 24 and stands up and holds erect a projecting portion 25 of a heat-shrink foil 26.
In addition the compressed air coming from the nozzles 19 directs hot air from the shrink device 3 to the inside of the projecting portion 25. The shrink device 3 is supplied with gas via a supply line 27.
When the nozzles 19 are only as shown provided for upper and lower shrinking, the outlet openings 21 are provided in an annular array around the face 20 as shown in FIG. 3 so that the compressed air moves outward in all directions. If on the contrary several nozzles 19 are provided, the outlet openings 21 of each nozzle 19 are preferably set such that each nozzle 19 directs its :1927 PCT/EPOO/00444 Transl. of WO 00/44626 compressed air only at a particular portion of the object stack 12;
at the same time the arrangement of the outlet openings 21 among the provided nozzles 19 is selected such that the projecting foil portion 25 of the heat-shrink foil 26 is stood up at every location by the compressed air.
Shrinking with the apparatus according to the invention takes place as follows:
First the object stack 12 is wrapped or wound with the heat-shrink foil 26. This can be done for example at a station upstream from the shrink station 1 or in the shrink station itself.
When the wrapping takes place in a separate station the object stack 12 surrounded by the heat-shrink foil 26 is transported by the conveyor 13 to the shrink station 1.
To both sides of the conveyor 13 are standard vertical foil rollers for applying the heat-shrink foil 26, from at least one of which the heat-shrink foil 26 rolls out. The two ends of the heat-shrink foils 26 pulled off the foil rolls are welded together. On passing the foil rolls the object stack 12 is sur-rounded by the welded-together heat-shrink foils 26, the two heat-shrink foils 26 being joined together at the trailing region with a double weld seam.
Thereafter the heat-shrink foils 26 are cut apart between the two weld seams so that the next object stack 12 can be provided with a heat-shrink foil 26. The heat-shrink foil 26 engages the object stack 12 such that it does not slide down. It is possible to provided the object stack 12 in another manner with the heat-21927 PCT/EPOO/00444 Transl. of WO 00/44626 -shrink foil 26. In the case where the heat-shrink foil 26 is not tight enough on the object stack 12, a compactor 28 is provided on the ram table 16 that presses the heat-shrink foil against the object stack and thus holds it in place.
In the shrink station 1 the heat-shrink foil 26 is shrunk by vertical movement of the shrink device 3. It is preferable that the shrinking takes place from top to bottom although shrinking in the opposite direction is possible.
In order to achieve a good shrinking in the upper region, that is in order to shrink the foil portion 25 projecting up above the object stack 12, compressed air is blown via the nozzles 19 against the upper surface of the object stack 12. The compressed air engages obliquely down on the object stack 12 (arrow 22) and is deflected thereby back up in the direction of the arrows 24. In this manner the projecting foil portion 25 is pushed outward and upward so that during the upper shrink phase it is erect and thus is uniformly heated by the hot gas from the shrink device 3.
As soon as the projecting foil portion 25 is heated to the shrink temperature, air feed to the nozzle 19 is cut so that the projecting foil 25 portion draws itself over the upper surface of the object stack 12.
Thereafter the shrink device 3 is moved downward to shrink the side surfaces of the object stack 12, so that the heat-shrink foil 26 pulls strongly together over the side surfaces of the object stack 12.
21927 PCT/EPOO/00444 Transl. of WO 00/44626 If shrinking underneath is desired, that is to engage the lower edge of the heat-shrink foil 26 around the object stack 12 or the pallet 15, the object stack 12 is raised somewhat by the ram 17 of the lifting device 16.
Then the shrink device is dropped down to the level of the conveyor 13 by movement of the carriages 5.
Now the lower edge of the heat-shrink foil 26 is acted on by the hot gas of the shrink device 3 so that it is heated to the shrink temperature and thus pulls tight around the lower face of the pallet 14. In order to get a good engagement underneath one also uses at least one nozzle 19.
Thereafter the object stack 12 with a still hot edge of the heat-shrink foil 26 is again set back down on the conveyor 13 so that the hot edge is pressed between the conveyor 13 and the lower surface of the pallet 15 so as to weld together the various layers of this edge. Thus the lower edge of the heat-shrink foil 26 gains an extremely good hold.
After the shrink process is over, the object stack 12 is moved out of the shrink station 1 by the conveyor 13. The above-described process is repeated for a new object stack.
The invention relates to an apparatus for shrinking a heat-shrink foil in particular wrapped around a palleted stack of objects.
Such heat-shrink foils are used nowadays in order, for example, to secure objects for example to a pallet for transport.
To this end a heat-shrink foil is wrapped around the stack of objects so that the heat-shrink foil does not slip down. This is done either directly in a shrink station or in a separate station upstream of the shrink station.
in the shrink station the heat-shrink foil is blasted by the shrink device with hot gas so that the heat-shrink foil is heated to its shrink temperature and is shrunk so as to pull together around the stack of objects. The shrink device is thus movable vertically up and down so that shrinking can take place from top to bottom or from bottom to top. During shrinking air is blow partially on the stack of objects from above.
US patent 4,616,471 describes an apparatus for shrining a heat-shrink foil forming a hood over a palleted object stack that is formed of at least one shrink device movable vertically up and down on a frame, the heat-shrink foil projecting past the lower face of the object stack.
A disadvantage is that this apparatus cannot produce a fold-free shrinking of the portion of the heat-shrink foil that projects above the top of the stack of objects so that for example a packing slip on the upper side of the stack of objects between the stack of objects and the heat-shrink foil, which carries a bar code, cannot be read.
It is an object of the invention to %m.prove on an appara-tus of the described type so that shrinking of the porta.on of the foil projecting upwarc3.andjor downward is improved to produce an optimal fold-free shrink.
5. This object is attained by an apparatus for shrinking a heat-shrink foil wrapped in particular about a palleted object stack comprising at least one sbrink device movable vertically up and down on a frame to heat and vertically shri.nk the heat-shrink foil, the heat-shrink foil projecting past the upper and/or lower edge of the object stack to form an upper and/or lower shrink formation, characterized in that the apparatus further comprises at least one nozzle connectable to a compressed-gas, especially a compressed-air source and aimed centrally above and/or below the object stack and generally vertically directed thereat, each nozzle I5 having outlet openings that extend at an angle not coinciding with the flow direction inside the nozzle and that are ias an annular array.
As a result of the angle of the outlet openi.ugs of the nozzles to the flow direction, the compressed air ,is aot blown perpendicularly against the upper face of the object stack. Rather the compressed air ia directed either obliquely against the upper surface and is there defleeted against the projecting part of the foil, or -- so long as the outlet opea.ings open generally at a 900 angle to the flow direction iaside the.noxzle -- is blown directly against the projecting foil part. .l,s a result the projecting foil part is held up dura.ng the upper shrink phase so that it is uni-formly heated by the shrink device during this upper shrink phase.
_ 2 _ As a result of this uniform heating the projecting foil part shrinks without folds onto the upper side of the object stack.
Preferably each nozzle has a beveled end face in which the outlet openings are provided so that the compressed air is directed at this angle in all directions. The outlet openings extend generally at an angle of 450 to the flow direction in the nozzle.
In order that object stacks of different size can be provided with a shrunk foil in the shrink station, each nozzle is movable up and down. As a result the ideal spacing between the nozzle and the object stack can be set for the height of the object stack and/or the dimension of the upper face of the object stack.
In order to avoid that the unshrunk heat-shrink foil slides downward, it is further provided that the apparatus for securing the heat-shrink foil on the object stack has a pressing device that preferably is mounted on a lift table for lifting the object stack.
According to an aspect of the present invention there is provided an apparatus for shrinking a heat-shrink foil wrapped about an object stack, the apparatus comprising at least one shrink device movable vertically up and down on a frame to heat and shrink the heat-shrink foil, the heat-shrink foil projecting past at least one of an upper and a lower edge of the object stack to form at least one of an upper and a lower shrink formation, at least one nozzle connectable to a compressed-gas source, each nozzle having outlet openings that extend at an angle not coinciding with the flow direction inside the nozzle and that are in an annular array.
In the following an embodiment shown in the drawing is described. Therein:
FIG. 1 is a side view of an apparatus according to the invention;
FIG. 2 is a view through the output part of a nozzle; and FIG. 3 is a section through the structure of FIG. 2.
21927 PCT/EP00/00444 Transl. of WO 00/44626 In the figures the same reference numerals are used for the same parts.
FIG. 1 shows a shrink station 1 that is formed of a frame 2 and a shrink device 3, e.g. constituted as a ring burner.
The frame 2 has two masts 4 arranged next to another in a plane perpendicular to the view plane and of which only the front one is visible in this view. Both masts 4 are connected together at their upper ends by an unillustrated traverse.
Each mast 4 carries a vertically movable carriage 5 guided by rollers 6 and 7. The carriages 5 are moved vertically by endless chains 8 looped at the upper and lower ends of the masts 4 over sprockets 9 and 10.
A motor 11 provided in the lower region of the masts 4 drives the chains 8, both carriages 5 being moved synchronously so that they are always at the same height.
The carriages 5 are connected together by the shrink device 3 which has a shape corresponding to the footprint of a stack 12 of objects -- in the illustrated example a polygonal frame-like shape -- where the area inside the shrink device 3 is large enough that it can be moved vertically along the object stack 12.
Such an object stack 12 is underneath the shrink device 3 on a conveyor 13 that is formed for example as a chain, roller, or bar conveyor. The object stack 12 is comprised of a standard pallet 14 and a stack 15 of objects on it. If objects 15 of substantial size need to be packaged, no pallet 14 is needed.
21927 PCT/EP00/00444 Transl. of WO 00/44626 Underneath the object stack 12 is a lift platform or table 16 on whose upper side a lift ram 17 can engage through an aperture in the conveyor upward between the unillustrated support members of the pallet 14. A suction blower can be provided in the region of the ram 17 and underneath the conveyor 13.
Both above and below the object stack 12 is a nozzle 19 that can also move up and down. Each nozzle 19 is as shown in FIG.
2 of blunt shape and has an annular beveled edge face 20 that extends at an angle of about 45 to the flow direction inside the nozzle 19. Openings 21 in this edge face 20 direct jets of com-pressed air at an angle at the object stack 12 (arrow 22). As shown in FIG. 3 the outlet openings 21 extend like a star from a supply passage 23 provided centrally in the nozzle 19.
When the compressed air strikes the upper side of the object stack 12 it is deflected as shown by arrows 24 and stands up and holds erect a projecting portion 25 of a heat-shrink foil 26.
In addition the compressed air coming from the nozzles 19 directs hot air from the shrink device 3 to the inside of the projecting portion 25. The shrink device 3 is supplied with gas via a supply line 27.
When the nozzles 19 are only as shown provided for upper and lower shrinking, the outlet openings 21 are provided in an annular array around the face 20 as shown in FIG. 3 so that the compressed air moves outward in all directions. If on the contrary several nozzles 19 are provided, the outlet openings 21 of each nozzle 19 are preferably set such that each nozzle 19 directs its :1927 PCT/EPOO/00444 Transl. of WO 00/44626 compressed air only at a particular portion of the object stack 12;
at the same time the arrangement of the outlet openings 21 among the provided nozzles 19 is selected such that the projecting foil portion 25 of the heat-shrink foil 26 is stood up at every location by the compressed air.
Shrinking with the apparatus according to the invention takes place as follows:
First the object stack 12 is wrapped or wound with the heat-shrink foil 26. This can be done for example at a station upstream from the shrink station 1 or in the shrink station itself.
When the wrapping takes place in a separate station the object stack 12 surrounded by the heat-shrink foil 26 is transported by the conveyor 13 to the shrink station 1.
To both sides of the conveyor 13 are standard vertical foil rollers for applying the heat-shrink foil 26, from at least one of which the heat-shrink foil 26 rolls out. The two ends of the heat-shrink foils 26 pulled off the foil rolls are welded together. On passing the foil rolls the object stack 12 is sur-rounded by the welded-together heat-shrink foils 26, the two heat-shrink foils 26 being joined together at the trailing region with a double weld seam.
Thereafter the heat-shrink foils 26 are cut apart between the two weld seams so that the next object stack 12 can be provided with a heat-shrink foil 26. The heat-shrink foil 26 engages the object stack 12 such that it does not slide down. It is possible to provided the object stack 12 in another manner with the heat-21927 PCT/EPOO/00444 Transl. of WO 00/44626 -shrink foil 26. In the case where the heat-shrink foil 26 is not tight enough on the object stack 12, a compactor 28 is provided on the ram table 16 that presses the heat-shrink foil against the object stack and thus holds it in place.
In the shrink station 1 the heat-shrink foil 26 is shrunk by vertical movement of the shrink device 3. It is preferable that the shrinking takes place from top to bottom although shrinking in the opposite direction is possible.
In order to achieve a good shrinking in the upper region, that is in order to shrink the foil portion 25 projecting up above the object stack 12, compressed air is blown via the nozzles 19 against the upper surface of the object stack 12. The compressed air engages obliquely down on the object stack 12 (arrow 22) and is deflected thereby back up in the direction of the arrows 24. In this manner the projecting foil portion 25 is pushed outward and upward so that during the upper shrink phase it is erect and thus is uniformly heated by the hot gas from the shrink device 3.
As soon as the projecting foil portion 25 is heated to the shrink temperature, air feed to the nozzle 19 is cut so that the projecting foil 25 portion draws itself over the upper surface of the object stack 12.
Thereafter the shrink device 3 is moved downward to shrink the side surfaces of the object stack 12, so that the heat-shrink foil 26 pulls strongly together over the side surfaces of the object stack 12.
21927 PCT/EPOO/00444 Transl. of WO 00/44626 If shrinking underneath is desired, that is to engage the lower edge of the heat-shrink foil 26 around the object stack 12 or the pallet 15, the object stack 12 is raised somewhat by the ram 17 of the lifting device 16.
Then the shrink device is dropped down to the level of the conveyor 13 by movement of the carriages 5.
Now the lower edge of the heat-shrink foil 26 is acted on by the hot gas of the shrink device 3 so that it is heated to the shrink temperature and thus pulls tight around the lower face of the pallet 14. In order to get a good engagement underneath one also uses at least one nozzle 19.
Thereafter the object stack 12 with a still hot edge of the heat-shrink foil 26 is again set back down on the conveyor 13 so that the hot edge is pressed between the conveyor 13 and the lower surface of the pallet 15 so as to weld together the various layers of this edge. Thus the lower edge of the heat-shrink foil 26 gains an extremely good hold.
After the shrink process is over, the object stack 12 is moved out of the shrink station 1 by the conveyor 13. The above-described process is repeated for a new object stack.
Claims (9)
1. An apparatus for shrinking a heat-shrink foil wrapped about an object stack, the apparatus comprising:
at least one shrink device movable vertically up and down on a frame to heat and shrink the heat-shrink foil, the heat-shrink foil projecting past at least one of an upper and a lower edge of the object stack to form at least one of an upper and a lower shrink formation; and at least one nozzle connectable to a compressed-gas source and placed approximately centrally above or below or above and below the object stack for blowing directly or indirectly against an inner side of the projecting foil, each nozzle having outlet openings that extend at an angle not coinciding with the flow direction inside the nozzle and that are in an annular array for upholding projecting foil parts during the shrinking so that the projecting foil parts are uniformly heated by the shrink device.
at least one shrink device movable vertically up and down on a frame to heat and shrink the heat-shrink foil, the heat-shrink foil projecting past at least one of an upper and a lower edge of the object stack to form at least one of an upper and a lower shrink formation; and at least one nozzle connectable to a compressed-gas source and placed approximately centrally above or below or above and below the object stack for blowing directly or indirectly against an inner side of the projecting foil, each nozzle having outlet openings that extend at an angle not coinciding with the flow direction inside the nozzle and that are in an annular array for upholding projecting foil parts during the shrinking so that the projecting foil parts are uniformly heated by the shrink device.
2. The apparatus according to claim 1, wherein each nozzle has a beveled end face in which the outlet openings are provided.
3. The apparatus according to claim 1 or 2, wherein the outlet openings extend generally at an angle of 45° to the nozzle.
4. The apparatus according to any one of claims 1 to 3, wherein each nozzle is movable up and down.
5. The apparatus according to any one of claims 1 to 4, wherein in order to hold the heat-shrink foil on the object stack during shrinking, a pressing device is provided.
6. The apparatus according to claim 5, wherein the pressing device is mounted on a lift table for the object stack.
7. The apparatus of claim 5 wherein shrinking comprises upper-end shrinking.
8. The apparatus according to any one of claims 1 to 7, wherein the compressed-gas source comprises a compressed air source.
9. The apparatus according to any one of claims 1 to 8, wherein the object stack is a palleted object stack.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29901423U DE29901423U1 (en) | 1999-01-28 | 1999-01-28 | Device for shrinking a heat shrink film |
| DE29901423.1 | 1999-01-28 | ||
| DE29905931U DE29905931U1 (en) | 1999-01-28 | 1999-04-01 | Device for shrinking a heat shrink film |
| DE29905931.6 | 1999-04-01 | ||
| PCT/EP2000/000444 WO2000044626A1 (en) | 1999-01-28 | 2000-01-21 | Device for shrinking a shrink-wrap film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2359021A1 CA2359021A1 (en) | 2000-08-03 |
| CA2359021C true CA2359021C (en) | 2008-07-29 |
Family
ID=26062215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002359021A Expired - Fee Related CA2359021C (en) | 1999-01-28 | 2000-01-21 | Device for shrinking a shrink-wrap film |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US6837031B1 (en) |
| EP (1) | EP1147050B1 (en) |
| CN (1) | CN1174898C (en) |
| AT (1) | ATE225282T1 (en) |
| AU (1) | AU2905000A (en) |
| BR (1) | BR0007828A (en) |
| CA (1) | CA2359021C (en) |
| CZ (1) | CZ297612B6 (en) |
| DE (1) | DE50000600D1 (en) |
| DK (1) | DK1147050T3 (en) |
| ES (1) | ES2183785T3 (en) |
| HU (1) | HUP0105139A3 (en) |
| MX (1) | MXPA01007642A (en) |
| PL (1) | PL202615B1 (en) |
| PT (1) | PT1147050E (en) |
| SK (1) | SK10832001A3 (en) |
| TR (1) | TR200102163T2 (en) |
| WO (1) | WO2000044626A1 (en) |
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| US7523482B2 (en) * | 2002-08-13 | 2009-04-21 | Microsoft Corporation | Seamless digital channel changing |
| US8397269B2 (en) * | 2002-08-13 | 2013-03-12 | Microsoft Corporation | Fast digital channel changing |
| FR2855814B1 (en) | 2003-06-06 | 2005-08-19 | Thimon | METHOD AND DEVICE FOR PACKAGING A LOAD BY A THERMORETRABLE SOFT FILM |
| US7603689B2 (en) * | 2003-06-13 | 2009-10-13 | Microsoft Corporation | Fast start-up for digital video streams |
| US7444419B2 (en) * | 2003-10-10 | 2008-10-28 | Microsoft Corporation | Media stream scheduling for hiccup-free fast-channel-change in the presence of network chokepoints |
| US7562375B2 (en) * | 2003-10-10 | 2009-07-14 | Microsoft Corporation | Fast channel change |
| DE202005020192U1 (en) * | 2005-10-24 | 2006-05-24 | MSK-Verpackungs-Systeme Gesellschaft mit beschränkter Haftung | Device for shrinking a heat-shrinkable film placed around a, in particular palletized, stack of goods |
| ZA200803285B (en) * | 2005-10-24 | 2009-08-26 | Msk Verpackung Syst Gmbh | Method and device for shrinking a heat shrink film placed around a stack of items, in particular a palleted stack of items |
| US8135040B2 (en) * | 2005-11-30 | 2012-03-13 | Microsoft Corporation | Accelerated channel change |
| CN102673836A (en) * | 2012-06-11 | 2012-09-19 | 常州市成功建材机械有限公司 | Fuel gas heat shrinkable film equipment |
| CN102689715B (en) * | 2012-06-14 | 2015-06-24 | 长沙长泰机械股份有限公司 | Gas heat shrinkage furnace |
| ES2718428T3 (en) * | 2016-03-01 | 2019-07-01 | Msk Verpackung Syst Gmbh | Procedure and device for the contraction of a hot shrink foil placed around a specially palletized pile of goods |
| EP3381816B1 (en) * | 2017-03-28 | 2021-02-24 | MSK - Verpackungs-Systeme GmbH | Method for creating at least one clearance in a sheath composed of shrink film, securing a stack of articles on a pallet, and moulding device for carrying out said method |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662512A (en) * | 1968-01-24 | 1972-05-16 | Weldotron Corp | Method and apparatus for shrink-film wrapping a pallet load |
| US3807126A (en) * | 1970-06-10 | 1974-04-30 | Schwartz F Gmbh Ind Und Maschi | Wrapping and securing loads on pallets |
| NO127044C (en) * | 1971-02-10 | 1975-04-22 | Fernholt & Giertsen | |
| DE2153001A1 (en) | 1971-10-25 | 1973-05-03 | Ahrendt & Birkendahl Ohg | PROCESS AND DEVICE FOR SHRINKING GOODS IN PLASTIC FILM |
| US3853218A (en) * | 1973-01-30 | 1974-12-10 | Gilbert G | Load of goods comprising a plurality of layers, and a method and a machine for producing said load |
| US3897671A (en) * | 1973-08-31 | 1975-08-05 | Comptex | Apparatus and method for covering a load on a pallet |
| DE3120215A1 (en) * | 1981-05-21 | 1982-12-16 | Bernhard Beumer Maschinenfabrik Kg, 4720 Beckum | "PLANT FOR MANUFACTURING PALLETLESS, FILM-SHRINKED PIECE STACK, IN PARTICULAR BAG STACK" |
| DE3262894D1 (en) * | 1981-10-16 | 1985-05-09 | Msk Verpackung Syst Gmbh | Method and device for packaging goods stacked on a pallet |
| DE3363806D1 (en) * | 1982-12-30 | 1986-07-03 | Msk Verpackung Syst Gmbh | Method and device for shrinking a shrinkable hood drawn over a stack of goods |
| DE3327996A1 (en) * | 1983-08-03 | 1985-02-14 | MSK - Verpackungs-Systeme GmbH, 4190 Kleve | METHOD FOR PACKING PALLETIZED GOODS STACKS AND DEVICE FOR CARRYING OUT THIS METHOD |
| DE8513892U1 (en) * | 1985-05-10 | 1985-09-05 | MSK - Verpackungs-Systeme GmbH, 4190 Kleve | Device for covering and shrinking stacks of goods with shrink hoods |
| EP0283541B1 (en) | 1987-03-26 | 1991-09-25 | VFI Gesellschaft für Verpackungstechnik mbH | Method and apparatus for shrinking a plastic hood around a palletized load |
| US4879861A (en) * | 1988-04-20 | 1989-11-14 | Mcadams William J | Method for packaging firewood and the apparatus thereof |
| DE8816085U1 (en) * | 1988-12-24 | 1989-03-09 | Msk-Verpackungs-Systeme Gmbh, 4190 Kleve, De | |
| ES2077751T3 (en) * | 1990-09-13 | 1995-12-01 | Hannen Reiner Develog | PROCEDURE FOR PLACING ELASTIC COATING SHEETS ON A BATCH OF STACKED OBJECTS AND DEVICE FOR PERFORMING THE PROCEDURE. |
| EP0597141A1 (en) | 1992-11-10 | 1994-05-18 | VfI Gesellschaft für Verpackungstechnik mbH | Method and apparatus for the packing of goods stacked on a pallet |
| DE4423513C1 (en) * | 1993-10-26 | 1996-02-01 | Moellers Maschf Gmbh | Device for shrinking a shrink film hood |
| IT1298369B1 (en) * | 1997-12-10 | 2000-01-05 | Pieri Srl | METHOD AND APPARATUS FOR THE SEAMLESS FIXING OF THE WINDING TAIL OF PALLETIZED LOADS, MADE WITH FILM |
-
2000
- 2000-01-21 DE DE50000600T patent/DE50000600D1/en not_active Expired - Lifetime
- 2000-01-21 CN CNB008032289A patent/CN1174898C/en not_active Expired - Lifetime
- 2000-01-21 US US09/890,372 patent/US6837031B1/en not_active Expired - Lifetime
- 2000-01-21 CZ CZ20012729A patent/CZ297612B6/en not_active IP Right Cessation
- 2000-01-21 SK SK1083-2001A patent/SK10832001A3/en unknown
- 2000-01-21 HU HU0105139A patent/HUP0105139A3/en unknown
- 2000-01-21 TR TR2001/02163T patent/TR200102163T2/en unknown
- 2000-01-21 ES ES00907478T patent/ES2183785T3/en not_active Expired - Lifetime
- 2000-01-21 AU AU29050/00A patent/AU2905000A/en not_active Abandoned
- 2000-01-21 PL PL349878A patent/PL202615B1/en unknown
- 2000-01-21 MX MXPA01007642A patent/MXPA01007642A/en active IP Right Grant
- 2000-01-21 DK DK00907478T patent/DK1147050T3/en active
- 2000-01-21 CA CA002359021A patent/CA2359021C/en not_active Expired - Fee Related
- 2000-01-21 PT PT00907478T patent/PT1147050E/en unknown
- 2000-01-21 AT AT00907478T patent/ATE225282T1/en not_active IP Right Cessation
- 2000-01-21 BR BR0007828-0A patent/BR0007828A/en not_active IP Right Cessation
- 2000-01-21 EP EP00907478A patent/EP1147050B1/en not_active Expired - Lifetime
- 2000-01-21 WO PCT/EP2000/000444 patent/WO2000044626A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000044626A1 (en) | 2000-08-03 |
| CN1174898C (en) | 2004-11-10 |
| TR200102163T2 (en) | 2002-01-21 |
| MXPA01007642A (en) | 2002-05-14 |
| BR0007828A (en) | 2002-01-15 |
| AU2905000A (en) | 2000-08-18 |
| ATE225282T1 (en) | 2002-10-15 |
| PL349878A1 (en) | 2002-09-23 |
| SK10832001A3 (en) | 2002-02-05 |
| US6837031B1 (en) | 2005-01-04 |
| CZ20012729A3 (en) | 2002-03-13 |
| EP1147050B1 (en) | 2002-10-02 |
| HUP0105139A3 (en) | 2003-01-28 |
| HUP0105139A2 (en) | 2002-04-29 |
| PL202615B1 (en) | 2009-07-31 |
| DE50000600D1 (en) | 2002-11-07 |
| EP1147050A1 (en) | 2001-10-24 |
| ES2183785T3 (en) | 2003-04-01 |
| PT1147050E (en) | 2003-01-31 |
| CN1339003A (en) | 2002-03-06 |
| CZ297612B6 (en) | 2007-02-14 |
| CA2359021A1 (en) | 2000-08-03 |
| DK1147050T3 (en) | 2002-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20200121 |