Patent ID: 11951642
Assignee: SEALSTRIP CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 27:
28. A processing machine in a packaging line, comprising:
a frame supported by a base comprising:
a yoke rigidly affixed to the frame and having opposing vertical side arms; and
a die wheel located between and rotatably affixed to the opposing vertical side arms of the yoke, wherein the die wheel includes a first portion with cutting blades and a second portion, and wherein the first portion has a first diameter and the second portion has a second diameter that is less than the first diameter;

a drive motor mounted to the frame and connected to the die wheel;
an anvil roller mounted to the frame in close proximity to the die wheel and spaced apart by a nip having a gap for receiving a constantly traveling web of flexible material from the packaging line such that the web is periodically cut into by the cutting blades of the die wheel as the web passes through the nip; and
a motor controller programmed such that during a web processing run the drive motor drives intermittent rotation of the die wheel in repeating cycles, every 360 degrees of rotation of the die wheel defining a cycle, the die wheel motion during every cycle having a run period followed by a stop period at the same designated stopped home position of the die wheel where the web is released from contact with the die wheel cutting blades while the second portion of the die wheel is adjacent the anvil roller so that the web can pass beneath the die wheel without interference from the cutting blades, wherein the anvil roller is turned in correspondence with the speed of the web apart from the speed of the process wheel.