Laminating method for honeycomb

Abstract

Abstract There is described a novel method and a laminating machine useful to perform said method, all for the production of unexpanded honeycomb laminate, which machine includes a printing stage for application of adhesive upon the upper and lower faces of the upper one of a pair of webs transverse to the direction of travel of said webs and in the form of spaced parallel lines; said printing stage including means for laminating the printed one of said pair of webs to the clean web during the application of the adhesive; a tractive or draw stage which receives the printed, laminated pair of webs from the printing stage and transports same to a severing stage where the webs are cut between the adhesive lines whereat severance of the webs to sheets of predetermined length is accomplished without disturbance of said adhesive lines; the described invention also including a framework for mounting said stages thereon, drive means, including a motor and chain drive, capable of driving the printing and draw stages at a differential rate one relative to the other with the draw stage operated at a slightly greater speed than the printing stage so that the webs are held taut in transport to the severing stage; and, control means for actuating the severing of the webs into said sections of length, said control means being operated as a function of the number of lines of adhesive printed upon one of the upper or lower web faces of said printed web and there being means for compensating for the relative speed of the webs and the inertia of the actual severing means utilized at the severing stage. The severing means at the severing stage is actuated when a predetermined condition being reached, said condition being a function of the number of printed lines and being capable of presetting to any value. A proximity detector is utilized as sensing means in a relay circuit to count the number of lines printed by monitoring the rotation of one of the printing rollers of the printing stage, said count being transmitted to tabulating means which is present to actuate the severing means upon a predetermined count, said circuittabulating means including a DC solenoid valve system for causing movement of the severing means, and also includes means for actuating the severing means while tallying the count to a retallying condition so that counts are not lost during the motion of the severing means. Guide means are described for monitoring and adjusting the alignment of the webs and a pneumatically operated solenoid actuated blade system is provided as the severing means for the severing stage, said system including a fixed blade positioned above the webs and a movable blade position below the webs, a pneumatic cylinder system for actuating the movable blade toward the fixed blade and said solenoid valve system being operable upon said cylinder system to drive the movable blade for severance of the web.

Inventors

• 👤 Burton L Siegal
• 👤 Steve Herndon

Bibliographic Details