US 4,542,634 AGranted

Staking machine

OwnerKarl Voitinventor

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Abstract

In a staking machine for staking leather, skins or furs a rotatable work roll carrying staking blades or grindstones is arranged against a flexible pressing device with an adjustable gap. A workpiece is pulled through the gap by a rotary feed roll and a rotary clamping roll also arranged at an adjustable clearance. The workpiece is fed through the gap between the feed roll and the clamping roll when the feed roll cooperates with the clamping roll.

Claims9

Dependent claims

A staking machine for treating leather, skins, furs or the like, comprising two rotatable work rolls each provided with staking blades on a circumference thereof;

two resilient pressing means each associated with a respective work roll and spaced from the respective work roll to form a work gap and receive a workpiece in said work gap;
conveying means for pulling the workpiece between each pressing means and the respective work roll;
said conveying means comprising at least one rotary feed roll and two rotary clamping rolls arranged at opposite sides of said feed roll at 180.degree. with respect thereto and for cooperation therewith so as to form a feed gap for receiving the workpiece between said feed roll and an associated clamping roll, said two rotatable work rolls and said two resilient pressing means being arranged at opposite sides of said feed roll, each of said work rolls being driven independently from one another and being operated alternatingly and the workpiece being conveyed to each of the work rolls and the associated pressing means by said feed roll and each clamping roll in an alternating fashion, said feed roll being switchable in both directions of rotation so that the workpiece is conveyed between one of said work rolls and the associated pressing means and then between another of said work rolls and the associated pressing means by said feed roll and the respective clamping roll whereby the workpiece is staked during its conveying movement, each work roll being adapted to be shifted to and from the associated pressing means so that the work gap between each work roll and the associated pressing means is adjusted, said conveying means further including two additional rolls connected to each other and each connected to the respective clamping roll, and a continuation conveyor belt mounted around said additional rolls and said clamping rolls and overlapping a portion of a circumference of said feed roll.

Dependencies are inferred from the claim text.

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Abstract

A staking machine for treating leather, skins, furs or the like, comprising two rotatable work rolls each provided with staking blades on a circumference thereof;

two resilient pressing means each associated with a respective work roll and spaced from the respective work roll to form a work gap and receive a workpiece in said work gap;
conveying means for pulling the workpiece between each pressing means and the respective work roll;
said conveying means comprising at least one rotary feed roll and two rotary clamping rolls arranged at opposite sides of said feed roll at 180.degree. with respect thereto and for cooperation therewith so as to form a feed gap for receiving the workpiece between said feed roll and an associated clamping roll, said two rotatable work rolls and said two resilient pressing means being arranged at opposite sides of said feed roll, each of said work rolls being driven independently from one another and being operated alternatingly and the workpiece being conveyed to each of the work rolls and the associated pressing means by said feed roll and each clamping roll in an alternating fashion, said feed roll being switchable in both directions of rotation so that the workpiece is conveyed between one of said work rolls and the associated pressing means and then between another of said work rolls and the associated pressing means by said feed roll and the respective clamping roll whereby the workpiece is staked during its conveying movement, each work roll being adapted to be shifted to and from the associated pressing means so that the work gap between each work roll and the associated pressing means is adjusted, said conveying means further including two additional rolls connected to each other and each connected to the respective clamping roll, and a continuation conveyor belt mounted around said additional rolls and said clamping rolls and overlapping a portion of a circumference of said feed roll.