Web transport system with electro-optical label detection

Details Web transport system with electro-optical label detection Web transport system with electro-optical label detection

1982-11-22

1984-06-05

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Automatic and/or material-triggered control

B32B 3100

Patent

active

044526598

ABSTRACT:
A label carrier web transport for use in heat transfer decorators and the like, in which labels are optically registered to control web transport. A timing assembly coordinates the rotation of a cam shaft with the actuation and deactuation of clutch and brake assemblies within a metering roll. An optical scanner trained on the web registers a predetermined contrast location to actuate the brake and deactuate the clutch, subject to the presence of an enabling signal from the timing assembly. The metering roll, in combination with a reciprocating label shuttle, provides intermittent web motion to achieve controlled label advance. An alternative label transport system incorporates a capstan web drive in lieu of the metering roll, with a microprocessor to control various machine functions including intermittent web transport.

REFERENCES:
patent: 4383880 (1983-05-01), Geurtsen et al.

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