Combined stripper and sealing apparatus for bag forming and...

Details Combined stripper and sealing apparatus for bag forming and... Combined stripper and sealing apparatus for bag forming and...

B - Operations, Transporting

65

B

156/13, 156/27

B65B 51/30 (2006.01) B65B 9/20 (2006.01) B65B 59/02 (2006.01)

Patent

CA 1289861

Abstract A combined stripper and bag sealing apparatus (10) for use in a form, fill and seal packaging machine includes a pair of sealing jaws (30, 32) operated in reciprocating fashion to close and seal a package film tube (T). A pair of stripper plates (34, 35) are mounted on the sealing jaws (30, 32) for movement into and out of contact with the packaging film tube (T) to strip any product from the area of the package film tube to be sealed prior to sealing by the sealing jaws. The sealing jaws (30, 32) are mounted on a carriage (12) for limited oscillating movement in the longitudinal direction of the package film tube (T) to perform the stripping and sealing functions. The stripper plates/sealing jaws (30, 32, 34, 35) are sequentially moved by one or more crank assemblies (36) having drive links (42, 44) connected to the sealing jaws. Each crank assembly (36) is actuated by means of opposed pneumatic operating cylinders (70, 72) functioning in concert to move and positively stop and accurately position the stripper plates/sealing jaws (30, 32, 34, 35). A control circuit efficiently operates the apparatus (10) and allows easy programming and precise adjustment to allow formation of any size bag to maximize packaging speed and with a minimum of sealing jaw and carriage movement.

556772

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