Bag transfer device
First Claim
1. A device for clamping and transferring products of varying wall thicknesses comprising a pair of clamping jaw assemblies, one of said assemblies comprising a first jaw and a second jaw, means for driving said first jaw a given distance towards but fixedly spaced from the second jaw to clamp one thickness of said products, the other one of said assemblies comprising a first jaw and a second jaw, means for automatically biasly adjusting the second jaw of said other one of said assemblies towards the first jaw thereof and approaching a closed position therewith to clamp a thickness of said products different than said one thickness, said second adjustable jaw being flexible from said position so as to accommodte said different wall thicknesses of said products located between the jaws of said other one of said assemblies.
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Accused Products
Abstract
Apparatus for clamping and transferring to another location a stack of thermoplastic bags or the like wherein the bag walls have varying thicknesses. The apparatus preferably includes sets of clamping jaws for grasping the stack of bags. Each set comprises two pairs of the jaws. One pair is designed to rigidly clamp upon the stack while the other pair is spring-loaded or otherwise adjustable so that it can close differently than the first pair to compensate for the varying bag thicknesses even when the pairs of jaws are closed by the same drive mechanism. Each set of clamping jaws is independent of the other so that they can operate independently if one set were to jam.
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Citations
7 Claims
- 1. A device for clamping and transferring products of varying wall thicknesses comprising a pair of clamping jaw assemblies, one of said assemblies comprising a first jaw and a second jaw, means for driving said first jaw a given distance towards but fixedly spaced from the second jaw to clamp one thickness of said products, the other one of said assemblies comprising a first jaw and a second jaw, means for automatically biasly adjusting the second jaw of said other one of said assemblies towards the first jaw thereof and approaching a closed position therewith to clamp a thickness of said products different than said one thickness, said second adjustable jaw being flexible from said position so as to accommodte said different wall thicknesses of said products located between the jaws of said other one of said assemblies.
- 6. A plurality of products of varying wall thickness sections contained within a device for clamping and transferring the products, said device comprising a pair of clamping jaw assemblies, one of said assemblies comprising a non-self-adjustable first jaw and a second jaw, means for driving said first jaw towards but spaced from the second jaw, a first thickness section of said products being clamped between said first and second jaws of such one of said assemblies, the other one of said assemblies comprising a first jaw and a second jaw, means for automatically biasly adjusting the second jaw of said other one of said assemblies towards the first jaw thereof and approaching a closed position therewith, a second thickness section of said products thinner or thicker than said first thickness section being clamped between said first and second jaws of such other one of said assemblies, said second adjustable jaw being flexible from said position so as to accommodate the second thickness of such products located between the jaws of said other one of said assemblies.
Specification