Horizontal form, fill, seal machines

Details Horizontal form, fill, seal machines Horizontal form, fill, seal machines

B - Operations, Transporting

65

B

156/32

B65B 11/00 (2006.01) B29C 65/02 (2006.01) B65B 9/06 (2006.01) B65B 51/30 (2006.01) B65G 47/30 (2006.01) B65B 51/10 (2006.01)

Patent

CA 1216508

ABSTRACT A form fill seal type wrapping machine uses equal speed conveyors which are start/stop controlled to accept randomly fed packages and uniformly spaced them for wrapping and sealing in a roll fed wrapping material such as thermoplastic film. Different length packages can be wrapped without adjustment. One embodiment uses a traveling transverse seal mechanism so the machine can run continuously. Machine speed is enhanced by controlling dwell time for the transverse seal and time of travel for the transverse seal mechanism to be no longer than required to make the seal. A fast return mechanism for the transverse seal mechanism operates at a speed independent of machine speed.

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