US 6,238,175 B1Granted

Destacking apparatus

AssigneeG. Siempelkamp GmbH & Co.

InventorsWolfgang Götz, Guido Schrömges, Eggert de Weldige

Life of this patent

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Abstract

Foil sheets are removed from two stacks located one above the other on a stack rack by a swingable transfer assembly having a transfer platform along the sides of which guide rails carry a suction beam which, as the transfer assembly is swung up and down, can engage the uppermost foil sheet on one or the other stack. The suction beam draws the foil sheets onto the transfer platform where the foil sheet is oriented or aligned and from which the foil sheet is drawn onto a deposition station which can have belts carrying the laminate or in a direction orthogonal to the destacking transfer direction.

Claims16

Dependent claims

An apparatus for destacking foil sheets, comprising:

a stack station provided with means for holding at least one stack of foil sheets;
a deposition station, horizontally spaced from the stack station and provided with holding means for receiving foil sheets;
a transfer station between said stack station and said deposition station, said transfer station comprising:
a transfer platform extending between said deposition station and said stack station,
a pair of guide rails disposed on opposite sides of said transfer platform,
a suction beam extending between said guide rails and displaceable thereon back and forth between said stack station and said deposition station for withdrawing a foil sheet from said stack onto said transfer platform and along said transfer platform to said deposition station,
means forming a pivot axis for said transfer platform, said guide rails and said suction beam at a downstream side of said transfer station and at a side of said deposition station adjoining said transfer station for enabling upward and downward swinging of an upstream side of said transfer station relative to said stacking station and relative vertical displacement of said suction beam and said holding means, said holding means being provided as two holding means at said stack station and each of said holding means being in vertically spaced relationship, each receiving a respective stack of foil sheets, said upstream side of said transfer station being swingable about said axis to position said suction beam selectively at either of said stacks, said axis being located in a horizontal plane substantially midway between the two holding means;
and
a swinging mechanism at said stack station operatively connected to said upstream side of said transfer station for swinging said transfer platform, said guide rails and said suction beam about said axis to position said suction beam selectively at either of said stacks, said transfer platform being formed with a rotatable alignment table pivotable in all directions in a plane of the table.

6 more elements

An apparatus for destacking foil sheets, comprising:

a stack station provided with means for holding at least one stack of foil sheets;
a deposition station having a given width horizontally spaced from the stack station and provided with holding means for receiving foil sheets;
a transfer station between said stack station and said deposition station, said transfer station comprising;
a transfer platform extending between said deposition station and said stack station,
a pair of guide rails disposed on opposite sides of said transfer platform,
a suction beam extending between said guide rails and displaceable thereon back and forth between said stack station and said deposition station for withdrawing a foil sheet from said stack onto said transfer platform and along said transfer platform to said deposition station,
means forming a pivot axis for said transfer platform, said guide rails and said suction beam at a downstream side of said transfer station and at a side of said deposition station adjoining said transfer station for enabling upward and downward swinging of an upstream side of said transfer station relative to said stacking station and relative vertical displacement of said suction beam and said holding means, said holding means being provided as two holding means at said stack station and each of said holding means being in vertically spaced relationship, each receiving a respective stack of foil sheets, said upstream side of said transfer station being swingable about said axis to position said suction beam selectively at either of said stacks, said axis being located in a horizontal plane substantially midway between the two holding means;
and
a swinging mechanism at said stack station operatively connected to said upstream side of said transfer station for swinging said transfer platform, said guide rails and said suction beam about said axis to position said suction beam selectively at either of said stacks, said deposition station is provided with a suction bar displaceable at least partly over said platform for picking up a foil sheet deposited by the suction beam and which is displaceable over the width of said deposition station to deposit the picked-up foil sheet on the deposition station.

6 more elements

An apparatus for destacking foil sheets, comprising:

a stack station provided with means for holding at least one stack of foil sheets;
a deposition station horizontally spaced from the stack station and provided with holding means for receiving foil sheets;
a transfer station between said stack station and said deposition station, said transfer station comprising:
a transfer platform extending between said deposition station and said stack station,
a pair of guide rails disposed on opposite sides of said transfer platform,
a suction beam extending between said guide rails and displaceable thereon back and forth between said stack station and said deposition station for withdrawing a foil sheet from said stack onto said transfer platform and along said transfer platform to said deposition station,
means forming a pivot axis for said transfer platform, said guide rails and said suction beam at a downstream side of said transfer station and at a side of said deposition station adjoining said transfer station for enabling upward and downward swinging of an upstream side of said transfer station relative to said stacking station and relative vertical displacement of said suction beam and said holding means, said holding means being provided as two holding means at said stack station and each of said holding means being in vertically spaced relationship, each receiving a respective stack of foil sheets, said upstream side of said transfer station being swingable about said axis to position said suction beam selectively at either of said stacks at said stack station, said axis being located in a horizontal plane substantially midway between the two holding means;
and
a swinging mechanism at said stack station operatively connected to said upstream side of said transfer station for swinging said transfer platform, said guide rails and said suction beam about said axis to position said suction beam selectively at either of said stacks at said stack station, said deposition station being provided with a belt conveyor for carrying off a stack formed by at least one foil sheet and another member forming a charge for a press in a direction orthogonal to a direction of displacement of said foil sheet into said deposition station.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

An apparatus for destacking foil sheets, comprising:

a stack station provided with means for holding at least one stack of foil sheets;
a deposition station, horizontally spaced from the stack station and provided with holding means for receiving foil sheets;
a transfer station between said stack station and said deposition station, said transfer station comprising:
a transfer platform extending between said deposition station and said stack station,
a pair of guide rails disposed on opposite sides of said transfer platform,
a suction beam extending between said guide rails and displaceable thereon back and forth between said stack station and said deposition station for withdrawing a foil sheet from said stack onto said transfer platform and along said transfer platform to said deposition station,
means forming a pivot axis for said transfer platform, said guide rails and said suction beam at a downstream side of said transfer station and at a side of said deposition station adjoining said transfer station for enabling upward and downward swinging of an upstream side of said transfer station relative to said stacking station and relative vertical displacement of said suction beam and said holding means, said holding means being provided as two holding means at said stack station and each of said holding means being in vertically spaced relationship, each receiving a respective stack of foil sheets, said upstream side of said transfer station being swingable about said axis to position said suction beam selectively at either of said stacks, said axis being located in a horizontal plane substantially midway between the two holding means;
and
a swinging mechanism at said stack station operatively connected to said upstream side of said transfer station for swinging said transfer platform, said guide rails and said suction beam about said axis to position said suction beam selectively at either of said stacks, said transfer platform being formed with a rotatable alignment table pivotable in all directions in a plane of the table.

6 more elements