WEB FED ROTARY VARIABLE REPEAT CUTTER-CREASER SYSTEM

• US 3,667,354 A
• Filed: 01/30/1969
• Issued: 06/06/1972
• Est. Priority Date: 01/30/1969
• Status: Expired due to Term

• Current Assignee: Floyd Steinmetz
• Original Assignee: Floyd Steinmetz
• Inventors: Steinmetz, Floyd
• Primary Examiner(s): Morse, Jr., Wayne A.
• Application Number:
  US04/795,326
• Time in Patent Office: 1,223 Days
• Field of Search: 93/58,58.2,58.3,80,93DP,1G,33 226/113,114,141,142,156,160 83/313,336,339 101/226,227,228 53/51
• US Class Current: 493/8
• CPC Class Codes: B26D 1/245 for thin material, e.g. for sheets, strips or the like
• CPC Class Codes: B65H 20/04 to effect step-by-step advancement of web
• CPC Class Codes: Y10T 83/4743 With means to vary cyclically speed of work

Abstract

A web fed rotary variable repeat cutter-creaser system is provided for the packaging industry which is to be fed from a web stock of material either printed or unprinted or both. This system consists basically of a pair of large diameter, very heavy walled drums on which can be mounted a pair of cutting and creasing dies. These dies are in the form of a sheet metal blanket into which the shape to be cut and creased have been chemically milled. The dies are mounted on these two drums so that as they rotate together, the dies will match one another in a registered position. A feeder is provided for the die cylinders which has the qualities of feeding a selected length of material, yet is continuously supplied from roll web stock of material. A crank working directly from the die cylinders wraps a storage integral of the web about a drum, then unwraps and advances it periodically. Swing rolls are oscillated by the crank arm and these are geared to a mechanism for advancing or retarding the fed portion of the web of material in accord with registration marks on the web stock.

Claims

1. In a variable repeat length system for performing at least one operation on a web having structure including a work member positioned thereon for working on a continuously supplied web stock fed thereto during each working cycle of said work member, the improvement comprising a pair of spaced guide rolls for guiding web stock, means including an arcuate member for accumulating and storing thereon an integral of said web stock and advancing said integral of web stock periodically to said work member, and means coupled to said means for accumulating and storing thereon said integral and controlled by said structure having said work member to cause said means for accumulating and storing to feed the integral of web stock stored on said accumulating and storing means to said work member for operation thereon by said work member.

2. A variable repeat length system for performing at least one operation on a web comprising, structure including a work member positioned thereon for working on a continuOusly supplied web stock fed thereto during each working cycle of said work member, a pair of spaced guide rolls for guiding web stock, means including an arcuate member to accumulate and store thereon an integral of said web stock and advance said integral of web stock periodically to said work member, and means coupled to said means for accumulating and storing thereon said integral and to said structure having said work member to cause said means for accumulating and storing to feed said integral of said web stock stored on said accumulating and storing means to said work member for operation thereon by said work member.

3. A variable repeat length system for performing at least one operation on a web, comprising, means including a work member positioned thereon for working on a continuously supplied web stock fed thereto during each working cycle of said work member, a pair of spaced guide rolls for guiding web stock, means including an arcuate member to accumulate, store thereon and feed an integral of said web stock and advance said web stock periodically to said work member, and means coupled to said means for accumulating and storing said integral and to said means having said work member to cause said means for accumulating and storing to feed said integral of web stock stored on said accumulating and storing means to said work member for operation thereon by said work member.

4. A rotary variable repeat length system for performing at least one operation on a web, comprising, means including at least one rotary drum having a work member positioned thereon for working on a web stock fed to said drum, a pair of spaced guide rolls for guiding web stock, means including an arcuate member to accumulate, to store thereon and to feed an integral of said web stock, means for causing said feeding means to travel through one complete control cycle for each revolution of said rotary drum, and means coupled to said feeding means and to said rotary drum to cause said feeding means to feed said integral of web stock stored on said accumulating and storing means to said rotary drum at substantially the surface speed thereof for operation thereon by said work member on said rotary drum.

5. A rotary variable repeat length system for performing at least one operation on a web, comprising, means including at least one rotary drum having a work member positioned thereon for working on a web stock having spaced indicia thereon fed to said drum, a pair of spaced guide rolls for guiding web stock, means including an arcuate member to accumulate, to store thereon and to feed an integral of said web stock to said rotary drum, means for causing said feeding means to travel through one complete control cycle for each revolution of said rotary drum, and means coupled to said feeding means and to said rotary drum to cause a change in the feeding action of said feeding means to correct for misregister between said spaced indicia on said web stock and the work member on said rotary drum.

6. A web fed rotary variable repeat length system for performing at least one operation on a web, comprising, means including a pair of spaced rotary drums having work members positioned in register with one another thereon for working on a web stock fed between said rotary drums, a pair of spaced guide rolls for guiding web stock, means including an arcuate member to accumulate, to store thereon and to feed an integral of said web stock between said rotary drums, means for causing said feeding means to travel through one complete control cycle for each revolution of said rotary drums, and means coupled to said feeding means and to one of said rotary drums to cause said feeding means to feed said integral of web stock stored on said accumulating and storing means to said rotary drums at substantially the surface speed thereof for operation thereon by said work members.

7. In a web fed rotary variable repeat length system as recited in claim 6, wherein said feeding means which accumulates and stores thereOn said integral of said web stock includes a pair of spaced members mounted thereon for receiving and feeding said web stock to said rotary drums.

8. In a web fed rotary variable repeat length system as recited in claim 7, wherein said means coupled to said feeding means which accumulates and stores thereon said integral of said web stock and to one of said rotary drums includes a variable ratio drive mechanism.

9. A web fed rotary variable repeat length system for performing at least one operation on a web, comprising, means including a pair of spaced rotary drums having work members positioned in register with one another thereon for cutting and creasing sections from a web stock having spaced indicia thereon and fed between said rotary drums, a pair of spaced guide rolls for guiding web stock, means including an arcuate member to accumulate, to store thereon and to feed an integral of web stock to said rotary drums, means for causing said feeding means to travel through one complete control cycle for each revolution of said rotary drums, drive means coupled to said feeding means and to one of said rotary drums, and means for sensing said spaced indicia on said web stock and the angular position of said rotary drums and for signaling said drive means to cause a change in the feeding action of said feeding means in order to correct for misregister of said spaced indicia on said web stock and said work members on said rotary drums.

10. A web fed rotary variable repeat length system as recited in claim 9, wherein said feeding means which accumulates and stores thereon said integral of web stock is pivotally mounted and includes a pair of feed rolls for receiving and feeding said web stock to said rotary drums at substantially the surface speed thereof.

11. A web fed rotary variable repeat length system as recited in claim 9, wherein said drive means is of the variable ratio type.

12. A web fed rotary variable repeat length system as recited in claim 9, and additionally means for cushioning the movements of said feeding means.

13. A web fed rotary variable repeat length system as recited in claim 9, wherein said work members are work dies for cutting, creasing, embossing and/or printing of said web stock.

14. A web fed rotary variable repeat length system as recited in claim 9, and means for sensing and controlling the rate of feed of said web stock to said feeding means.

15. A web fed rotary infinite variable repeat cutter-creaser system, comprising, means including a pair of spaced rotary members having work elements positioned in register thereon for cutting-creasing sections from a web stock having spaced indicia thereon fed between said rotary members, a pair of spaced guide rolls for guiding web stock, means including an arcuate member for accumulating and storing thereon an integral of web stock and having spaced rolls mounted thereon arranged to store and to receive an integral of said web stock between said rolls and feed integrals of web stock into said rotary members at substantially the surface speed thereof, means coupling said accumulating and storing means with one of said rotary members, a variable ratio drive means coupled to said accumulating and storing means and to said one rotary member, and means for sensing said spaced indicia on said web stock as well as the angular position of said rotary members and for signaling said variable ratio drive means to cause a readjustment of the speed of output of said variable ratio drive means to correct for misregister of said indicia on said web stock with said work elements on said rotary members.

16. A variable repeat length system for performing at least one operation on a web, comprising, means having a work member positioned thereon for working on a continuously supplied web stock having spaced indicia thereon fed to said work member during the working cycle thereof, a pair of spaced guide rolls for guiding web stock, means including an arcuate member to form and store thereon an integral of Said web and advance said integral of web periodically to said work member, means for causing said feeding means to travel through one complete control cycle for each cycle of operation of said work member, and means coupled to said feeding means and to said means having said work member to cause a change in the feeding action of said feeding means to correct for misregister between said spaced indicia on said web stock and the work member.

17. A web fed rotary variable repeat length system for performing at least one operation on a web, comprising, means including a pair of spaced rotary members having work elements positioned in register with one another thereon for working on a continuously supplied web stock fed between said rotary members during the working cycle thereof, a pair of spaced guide rolls for guiding web stock, means including an arcuate member to accumulate and to store thereon an integral of said web and advance said integral of web periodically to said work elements, means for causing said feeding means to travel through one complete control cycle for each cycle of operation of said rotary members, and means coupled to said feeding means and to one of said rotary members to cause said feeding means to feed said integral of web stock accumulated and stored thereon to said rotary members at substantially the surface speed thereof for operation thereon by said work elements.

18. A web fed rotary infinitely variable repeat cutter-creaser system, comprising, means including a pair of spaced rotary members having work elements positioned in register thereon for cutting-creasing printed carton sections from a continuously supplied web stock having spaced indicia thereon fed between said rotary members, a pair of spaced guide rolls for guiding web stock, means including an arcuate member for accumulating and storing thereon an integral of said web stock and feeding said integral of web stock to said rotary members at substantially the surface speed thereof, means coupling said feeding means with one of said rotary members, drive means coupled to feeding means and to said one rotary member, and means for sensing said spaced indicia on said web stock as well as the angular position of said rotary members and for signaling said drive means to cause a readjustment of the speed of output of said drive means to correct the misregister of said indicia on said web stock with said work elements on said rotary members.