Cutting and heat sealing die assembly

Details Cutting and heat sealing die assembly Cutting and heat sealing die assembly

1989-10-11

1991-03-12

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

156530, 1565831, 1565834, 156251, B32B 3118

Patent

active

049990810

ABSTRACT:
An apparatus for cutting and heat sealing a pair of overlying heat-sealable panels together comprises a conveyer for moving a pair of superimposed webs of panel material along a linear path and into a cutting and sealing station. A combined cutting and sealing die assembly includes a cutting die for cutting the panels out of the webs and a sealing die for sealing peripheral edges of the superimposed panels together. A heater element is mounted on each of the dies to heat them to their respective cutting and sealing temperatures with the dies being thermally insulated to prevent heat transfer therebetween. A plurality of spring clips attach the dies together to permit thermal expansion of the cutting die relative to the sealing die.

REFERENCES:
patent: 2589756 (1952-03-01), Waters
patent: 3868291 (1975-02-01), Benz et al.
patent: 4000029 (1976-12-01), Michaels
patent: 4140046 (1979-02-01), Marbach
patent: 4430069 (1984-02-01), Carlisle
patent: 4545844 (1985-10-01), Buchanan

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