Workpiece feeder device for the traveling gripper of a sewing unit
AssigneeRockwell-Rimoldi S.p.A.
InventorNerino Marforio
Life of this patent
Estimating the term…
Abstract
A workpiece feeding device for presenting a workpiece to a sewing units traveling gripper for each sewing cycle having a sensing element for detecting the presence of the gripper in its starting position. The device includes actuating mechanisms operatively associated therewith for pivoting the gripper to a position to engage the workpiece and for closing the gripper so that it will grip and tension the workpiece during the sewing cycle as it is advanced along the sewing surface by the sewing machine during the sewing operation.
Claims10
A workpiece feeder device for a traveling gripper movable while holding and tensioning a workpiece being advanced along the work surface of a sewing unit by the feeding elements of a sewing machine mounted adjacent one end thereof, said workpiece feeder device comprising:
- a. a support member mounted on the sewing unit adjacent that end opposite the end supporting the sewing machine;
- b. means defining a positioning element carried by said support member for receiving and locating the traveling gripper at the completion of each sewing cycle;
- c. a workpiece positioning means carried by said support member in a position immediately adjacent to said positioning element for locating the trailing end of a workpiece in readiness for the next sewing cycle;
- d. means operatively associated with said workpiece positioning means for clamping the workpiece located thereby;
- e. means connected to said support member and operatively connected to said workpiece positioning means for moving the latter to a position spaced from said workpiece being held by said clamping means;
- f. displacing means carried on said support member and operatively connected to said positioning element for pivoting the traveling gripper located therein to a position for engaging the workpiece;
- and
- g. closing means mounted on said support member for engaging the traveling gripper and closing the same to effect gripping of the workpiece held by said clamping means prior to the start of the sewing cycle.
Dependencies are inferred from the claim text.