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1. WO1995005928 - MACHINE DE CONVERSION EN GARNITURE D'EMBALLAGE COMPRENANT UN ENSEMBLE DE COUPE ET D'ALIGNEMENT

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS
1 . A cushioning conversion machine for converting stock material into a cut section of dunnage, the machine comprising a frame, conversion assemblies, and a cutting/aligning assembly;
the conversion assemblies being mounted on the frame and converting the stock material into a dunnage strip;
the frame having a dunnage outlet opening through which the dunnage strip emerges;
the cutting/aligning assembly being mounted on the frame downstream of the outlet opening and including a moving blade unit and an automatic alignment device; the moving blade unit being mounted on the frame in such a manner that it travels between a rest position and a cutting position to cut the dunnage strip into a cut section of dunnage;
the automatic alignment device automatically aligning the cut section with the outlet opening when the blade unit is moved from the cutting position to the rest position; and
the automatic alignment device being unattached to the moving blade unit yet traveling therewith during jam-free operation of the cushioning conversion machine.

2. A cushioning conversion machine as set forth in claim 1 wherein the alignment device includes a transition surface which is aligned with a side of the dunnage outlet opening when the moving blade unit is in the rest position.
3. A cushioning conversion machine as set forth in claim 1 wherein the alignment device is biased into a sliding, but unattached, contact arrangement with the moving blade unit.
4. A cushioning conversion machine as set forth in claim 3 wherein the alignment device includes a transition surface which is aligned with a side of the dunnage outlet opening when the moving blade unit is in the rest position.
5. A cushioning conversion machine as set forth in claim 4 wherein the alignment device is spring biased.
6. A cushioning conversion machine as set forth in claim 5. wherein the compression characteristics of the spring are such that the alignment device will remain in biased contact with the blade unit throughout a jam-free cutting cycle while at the same time will allow selective disassociation therefrom in a jam situation.
7. A cushioning conversion machine as set forth in claim 3 wherein the alignment device includes an alignment support member which is pivotally attached to the machine's frame and wherein the transition surface is attached to the alignment support member.
8. A cushioning conversion machine as set forth in claim 7 wherein the transition surface is in the form of a shelf which is attached to, and which extends perpendicularly downstream from, the alignment support member.
9. A cushioning conversion machine as set forth in claim 8 wherein the alignment device includes a follower and a guide rod;
wherein the follower is coupled to the alignment support member and remains in sliding contact with the blade unit during jam-free operation of the machine;
wherein the guide rod is attached to the machine frame and is received by the follower in a reciprocating arrangement.
10. A cushioning conversion machine as set forth in claim 4 wherein the cutting/aligning assembly further includes a second blade which coacts with the moving blade unit when it is in the cutting position.
1 1 . A cushioning conversion machine as set forth in claim 10 wherein the second blade is fixedly mounted to the machine frame adjacent to the dunnage outlet opening.
12. A cushioning conversion machine as set forth in claim 1 1 wherein the moving blade unit coacts with the second blade member in a scissor-like fashion.
13. A cushioning conversion machine as set forth in any of claims 1 -3 further comprising a post-cutting constraining assembly which is mounted on the frame downstream of the cutting/aligning assembly and which circumferentially constrains the cut sections.
14. A cushioning conversion machine as set forth in claim 13 wherein the post-cutting constraining assembly includes an inlet which is aligned with the dunnage outlet opening whereby the automatic alignment device automatically aligns the cut section with this inlet when the blade unit is moved from the cutting position to the rest position.
1 5. A cushioning conversion machine as set forth in claim 1 wherein the conversion assemblies include:
a forming assembly which causes inward rolling of the lateral edges of the sheet-like material into a generally spiral-like form whereby a strip having two lateral pillow-like portions separated by a thin central band is formed;
a stock supply assembly which supplies the stock material to the forming assembly; and a pulling/connecting assembly which pulls the stock material from the stock supply assembly and through the forming assembly to form the strip and which connects the strip along its central band whereby a coined dunnage strip is formed.

1 6. A cushioning conversion machine for converting sheet-like stock material into cut sections of a pad-like cushioning dunnage product, said machine comprising a frame; conversion assemblies which are mounted on said frame and which convert the sheet-like stock material into the cushioning dunnage product; and a cutting assembly which is also mounted on said frame and which cuts the cushioning dunnage product into cut sections;
said frame including an outlet opening through which the cushioning dunnage product emerges;
said cutting assembly being mounted downstream of said outlet opening;
said cutting assembly comprising a first blade and a second blade, said second blade being mounted on said frame in such a manner that it travels between a rest position whereat it is removed from said first blade to a cutting position whereat it coacts with said first blade to cut the cushioning dunnage product into a cut section; and
said cutting assembly further comprising an automatic alignment device which automatically aligns the cut section with the outlet opening when said second blade is moved from said cutting position to said rest position.
17. A cushioning conversion machine as set forth in claim 1 6 wherein said second blade is stationarily mounted to said machine frame.
18. A cushioning conversion machine as set forth in claim 1 7 wherein said second blade is mounted to said machine frame adjacent said outlet opening.
1 9. A cushioning conversion machine as set forth in claim 1 6 wherein said first blade coacts with said second blade in a guillotine-like fashion.
20. A cushioning conversion machine as set forth in claim 1 6 wherein said first blade coacts with said second blade in a scissor-like fashion.
21 . A cushioning conversion machine as set forth in claim 1 6 further comprising a post-cutting constraining assembly which is mounted on said frame downstream of said cutting assembly and which circumferentially constrains the cut sections.
22. A cushioning conversion machine as set forth in claim 21 wherein said post-cutting constraining assembly includes an inlet which is aligned with said outlet opening whereby said automatic alignment device automatically aligns the cut section with said inlet when said second blade is moved from said cutting position to said rest position.
23. A cushioning conversion machine as set forth in claim 16 wherein:
said frame includes an end plate;
said outlet opening is located on said end plate;
said outlet opening is defined by a series of sides; and
said first blade is fixedly mounted on said end plate in such a manner that it aligned with one of said sides.
24. A cushioning conversion machine as set forth in claim 16 wherein said alignment device includes an alignment member and at least one connecting member interconnecting said second blade with said alignment member.
25. A cushioning conversion machine as set forth in claim 24 wherein said alignment member comprises a planar shelf.
26. A cushioning conversion machine as set forth in claim 1 6 wherein:
said cutting assembly further comprises a support bar and at least one guide track;
said second blade is fixedly mounted to said support bar;
said support bar is slidably mounted on said end plate within said guide track; and
said connecting member of said alignment device connects said alignment member to said support bar.
27. A cushioning conversion machine as set forth in claim 26 wherein:
said machine further comprises a cutter motor which is mounted to said frame and which powers said cutting assembly; and
said cutting assembly further comprises a drive link operably connecting said support bar, and thus said second blade and said alignment member, to said motor.

28. A cushioning conversion machine as set forth in claim 27 wherein said cutter assembly comprises two guide tracks which are positioned beyond and parallel to lateral sides of said outlet opening.
29. A cushioning conversion machine as set forth in claim 27 wherein said cutting assembly further comprises a cutter linkage connecting said support bar to said drive link.
30. A cushioning conversion machine as set forth in claim 27 wherein one end of said support bar is slidably mounted within said cutter guide track and the other end of said support bar is pivotally attached to said end plate.
31 . A cushioning conversion machine as set forth in claim 16 wherein: said frame includes a frame base plate having an upstream end and a downstream end, a first upstream frame end plate extending generally
perpendicularly from said upstream end of said frame base plate, and a second downstream frame end plate extending in substantially the same direction as said first frame end plate from said downstream end of said frame base plate;
said conversion assemblies include a forming assembly, a stock supply assembly, and a pulling/connecting assembly;
said forming assembly is mounted on said base frame plate intermediate said upstream end and said downstream end and causes inward rolling of the lateral edges of the sheet-like material into a generally spiral-like form whereby a continuous unconnected strip having two lateral pillow-like portions separated by a thin central band is formed;
said stock supply assembly is located upstream of said forming assembly, is mounted on said first frame end plate, and supplies the stock material to said forming assembly; and
said pulling/connecting assembly is located downstream of said forming assembly, is mounted on an upstream side of said second frame end plate, and pulls the stock material from said stock supply assembly and through said forming assembly to form the continuous unconnected strip and connects the continuous unconnected strip along the central band whereby a coined strip of pad-like cushioning dunnage product is formed.
32. A cushioning conversion machine as set forth in claim 31 further comprising a post-cutting constraining assembly which is mounted on said frame downstream of said cutting assembly and which circumferentially and longitudinally constrains the cut sections.
33. A cushioning conversion machine as set forth in claim 32 wherein said post-cutting constraining assembly includes an inlet which is aligned with said outlet opening whereby said automatic alignment device automatically aligns the cut section with said inlet when said second blade is moved from said cutting position to said rest position.
34. A cushioning conversion machine as set forth in 33 wherein said cutting assembly further comprises an automatic interruption switch which automatically temporarily stops the production of the dunnage product when said second blade is removed from said rest position.

35. A cushioning conversion machine as set forth in claim 34 wherein said automatic interruption switch is electrically connected to said pulling/connecting assembly.
36. A cushioning conversion machine as set forth in claim 35 wherein said automatic interruption switch comprises a depressible button which allows operation of said pulling/connecting assembly when it is in a depressed condition and which interrupts operation of said pulling/connecting assembly when it is in a released condition.
37. A cushioning conversion machine for converting sheet-like stock material into cut sections of a pad-like cushioning dunnage product, said machine comprising a frame; conversion assemblies which are mounted on said frame and which convert the sheet-like stock material into the cushioning dunnage product; and a cutting assembly which is also mounted on said frame and which cuts the cushioning dunnage product into the cut sections;
said frame including an outlet opening through which the cushioning dunnage product emerges;
said cutting assembly being mounted downstream of said outlet opening;
said cutting assembly comprising a first blade and a second blade, said second blade being mounted on said frame in such a manner that it travels between a rest position whereat it is removed from said first blade to a cutting position whereat it coacts with said first blade to cut the cushioning dunnage product into a cut section; and
said cutting assembly further comprising an automatic interruption switch which automatically temporarily stops the production of the dunnage product when said second blade is removed from said rest position.
38. A cushioning conversion machine as set forth in claim 37 wherein:
said frame includes a frame base plate having an upstream end and a downstream end, a first upstream frame end plate extending generally
perpendicularly from said upstream end of said frame base plate, and a second downstream frame end plate extending in substantially the same direction as said first frame end plate from said downstream end of said frame base plate;
said conversion assemblies include a forming assembly, a stock supply assembly, and a pulling/connecting assembly;
said forming assembly is mounted on said base frame plate intermediate said upstream end and said downstream end and causes inward rolling of the lateral edges of the sheet-like material into a generally spiral-like form whereby a continuous unconnected strip having two lateral pillow-like portions separated by a thin central band is formed;
said stock supply assembly is located upstream of said forming assembly, is mounted on said first frame end plate, and supplies the stock material to said forming assembly; and
said pulling/connecting assembly is located downstream of said forming assembly, is mounted on an upstream side of said second frame end plate, and pulls the stock material from said stock supply assembly and through said forming assembly to form the continuous unconnected strip and connects the continuous unconnected strip along the central band whereby a coined strip of pad-like cushioning dunnage product is formed.
39. A cushioning conversion machine as set forth in claim 38 wherein said automatic interruption switch is electrically connected to said pulling/connecting assembly.
40. A cushioning conversion machine as set forth in claim 39 wherein said automatic interruption switch comprises a depressible button which allows operation of said pulling/connecting assembly when it is in a depressed condition and which interrupts operation of said pulling/connecting assembly when it is in a released condition.