Method and device for assuring orderly web travel in a folder by punching holes in a paper width direction

• US 5,186,444 A
• Filed: 06/29/1992
• Issued: 02/16/1993
• Est. Priority Date: 04/11/1991
• Status: Expired due to Term

• Current Assignee: Goss International Americas Incorporated (City of Shanghai)
• Original Assignee: Heidelberg Harris GmbH (Heidelberger Druckmaschinen Ag)
• Inventors: Novick, Michael A., Belanger, Roger R., Palmatier, Roland T.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Ryznic, John
• Application Number:
  US07/908,528
• Time in Patent Office: 232 Days
• Field of Search: 270/21.1, 270/32, 270/37, 270/52, 270/52.5, 83/861, 83/862, 83/863, 83/867
• US Class Current: 270/52.09
• CPC Class Codes: B26D 2007/322 the cut products being sheets, e.g. sheets of paper
• CPC Class Codes: B26D 7/1818 by pushing out
• CPC Class Codes: B26D 9/00 Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
• CPC Class Codes: B26F 1/10 Roller type punches
• CPC Class Codes: B31F 5/027 by perforating, e.g. by folding over the partially cut part
• CPC Class Codes: B41F 13/60 crosswise
• CPC Class Codes: Y10T 83/0207 or through work presented

Abstract

A method of assuring orderly web travel in a folder includes stamping out of a layered structure formed of mutually superimposed web surface portions, along respective strips thereof, a plurality of tongue-like elements remaining appendant to the web surface portions and projecting through respective holes simultaneously stamped out of the web surface portions so as thereby to hold the web surface portions together at the respective strips thereof; and a device for performing the method.

Claims

1. Device for assuring orderly web travel in a given direction in a folder, comprising at least one cutting cylinder, at least one cutting knife disposed on said cutting cylinder, a grooved cylinder disposed in cooperative engagement with said cutting cylinder, said grooved cylinder carrying at least one rubber beam in a groove formed in said grooved cylinder, said cutting cylinder and said grooved cylinder being contrarotatable so that said cutting knife and said rubber beam are periodically in mutual engagement at a cut-off location, and at least one stamping die disposed in vicinity of said cut-off location and extending across substantially the entire width of a path traversible by a layered structure formed of mutually superimposed web surface portions travelling through a nip between said cylinders for stamping holes out of the layered structure while leaving a tongue-like element appendant to the web surface portions and projecting through the holes adjacent a location of the web surface portions at which a signature is cut-off by said cutting knife.

2. Device according to claim 1, wherein said stamping die is located on said cutting cylinder upstream of said cutting knife in the direction of travel of the web surfaces portions through said nip so as to stamp the holes out of the web surface portions before said cutting knife cuts off the signature.

3. Device according to claim 1, wherein said stamping die is located on said cutting cylinder adjacent said cutting knife so as to stamp the holes out of the web surface portions and cut the signature off approximately simultaneously.

4. Device according to claim 1, wherein said stamping die is located on said cutting cylinder downstream of said cutting knife in the direction of travel of the web surface portions through said nip so as to stamp the holes out of the web surface portions after said cutting knife cuts off the signature.

5. Device according to claim 1, including a clamping rail mounted on the outer cylindrical surface of said cutting cylinder, said stamping die being held in said clamping rail.

6. Device according to claim 5, wherein said clamping rail is mounted on said outer cylinder surface of said cutting cylinder substantially parallel to a rotational axis thereof, and a plurality of said stamping dies are distributed over the length thereof at mutually adjacent locations.

7. Device according to claim 1, wherein said stamping die is mounted on said cutting cylinder for cooperative engagement with said rubber beam periodically.

8. Device according to claim 1, wherein a plurality of said stamping dies are disposed on the outer cylindrical surface of said cutting cylinder for stamping out holes with tongue-like elements appendant to the web surface portions and projecting through the respective holes along respective strips of the web surface portions in vicinity of said cut-off location.

9. Device assuring orderly web travel in a given direction in a folder, comprising a first movable member carrying at least one cutting knife, a second movable member cooperatively engageable with said first movable member and carrying at least one beam formed of yieldable material, said first and said second movable members being movable relatively to one another so that said cutting knife and said beam formed of yieldable material are periodically in mutual engagement at a cut-off location along a travel path of a layered structure formed of mutually superimposed web surface portions, at least one stamping die disposed at another location along said travel path and extending across substantially the entire width of said travel path for stamping holes out of said web surface portions along respective strips thereof while leaving a tongue-like element appendant to the web surface portions and projecting through the holes.

10. In a method of assuring orderly web travel in a given direction in a folder, the improvement therein which comprises the steps of stamping out of a layered structure formed of mutually superimposed web surface portions, along respective strips thereof and across substantially the entire width of the layered structure, a plurality of tongue-like elements remaining appendant to the web surface portions and projecting through respective holes simultaneously stamped out of the web surface portions so as thereby to hold the web surface portions together at the respective strips thereof, severing the superimposed web surface portions into respective signatures along the respective strips so that leading ends of the of the respective signatures are held together by the tongue-like elements projecting through the stamped-out holes, and continuing to hold the leading end of the respective signatures together by maintaining the tongue-like elements in the stamped-out holes while simultaneously advancing the respective signature in the given direction.

11. Method according to claim 10, which comprises performing the step of severing the superimposed web surface portions into respective signatures along the respective strips so that leading ends of the respective signatures are held together by the tongue-like elements projecting through the stamped-out holes, prior to the stamping step.

12. Method according to claim 10, which comprises performing the step of severing the superimposed web surface portions into respective signatures along the respective strips so that leading ends of the respective signatures are held together by the tongue-like elements projecting through the stamped-out holes, during the stamping step.

13. Method according to claim 10, which comprises performing the step of severing the superimposed web surface portions into respective signatures along the respective strips so that leading ends of the respective signatures are held together by the tongue-like elements projecting through the stamped-out holes, after the stamping step.

14. Method according to claim 10, which includes transporting the thus formed signatures to a further processing location.

15. Method according to claim 14, which includes a step of applying a substance to the respective strips at leading edges of the thus formed signatures for causing the leading edges to adhere to one another.

16. Method according to claim 15, wherein the substance which is applied is an adhesive.

17. Method according to claim 15, wherein the substance which is applied is water.

18. Method according to claim 14, which includes trimming the strips from the respective signatures.