Loop gripper handling device and handling unit and process for handling loop gripper modules

Patent metadata

Field	Value
Publication number	US-11028513-B2
Application number	US-201916353620-A
Country	US
Kind code	B2
Filing date	Mar 14, 2019
Priority date	Mar 15, 2018
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

A handling unit (10) comprises a loop gripper module (11) and a clamping device (12), which has a frictionally engaged connection with the sliders (24-33) of the loop gripper module (11). The sliders (24-33) are lightly clamped in corresponding slots of the clamping device and cannot, even if shaken, slip against one another and in particular they also cannot slide out of the loop gripper module (11). Thus, the sliders are all at the same position, and need not be moved back by hand during mounting. For example, in order to remove clamping device, which is in the form of a plastic clip, the clamping device need only be pressed onto the loop gripper module or be pulled away from the loop gripper module. When this force is applied, the plastic clip is lifted from the sliders (24-33) in a rotating movement.

First claim

The invention claimed is:

1. A loop gripper handling device comprising:
a clamping device ( 12 ) with a plurality of clamping receptacles ( 34 - 43 ) arranged in a row, wherein individual ones of the plurality of clamping receptacles are configured to hold individual ones of a plurality of moveable sliders ( 24 - 33 ) that are disposed in a loop gripper module ( 11 ) such that each of the plurality of moveable sliders held in the plurality of clamping receptacles is held in a fixed axial position relative to an other of the plurality of moveable sliders held in the plurality of clamping receptacles.

2. The loop gripper handling device according to claim 1 , wherein every one of the plurality of clamping receptacles ( 34 - 43 ) has only two continuous surfaces ( 35 , 36 ) that are opposite one another and that define a slot between one another.

3. The loop gripper handling device according to claim 2 , wherein the surfaces ( 35 , 36 ) are planar or convex surfaces, which are mirror symmetric to one another with respect to an imaginary midplane ( 37 ) of the slot.

4. The loop gripper handling device according to claim 3 , wherein the plurality of clamping receptacles ( 34 - 43 ) in the row are arranged at equal distances to one another.

5. The loop gripper handling device according to claim 1 , wherein the plurality of clamping receptacles ( 34 - 43 ) are arranged oriented parallel to one another.

6. The loop gripper handling device according to claim 5 , wherein the plurality of clamping receptacles ( 34 - 43 ) are all the same size and shape with an outwardly widening insertion section ( 38 , 39 ).

7. The loop gripper handling device according to claim 6 , wherein the plurality of clamping device ( 12 ) has a beam-like body in which the clamping receptacles ( 34 - 43 ) are formed.

8. The loop gripper handling device according to claim 1 , wherein the plurality of clamping device has a beam-like body with a rectangular or square cross section that is parallel to the clamping receptacles ( 34 - 43 ).

9. The loop gripper handling device according to claim 1 , wherein each of the plurality of clamping receptacles ( 34 - 43 ) is configured to hold one of the plurality of movable sliders ( 24 - 33 ) of the loop gripper module ( 11 ) in a given axial position.

10. A handling unit comprising a loop gripper handling device according to claim 1 , wherein the plurality of movable sliders ( 24 - 33 ) are longitudinally movable in the loop gripper module ( 11 ), and the clamping device ( 12 ) is arranged with the plurality of clamping receptacles ( 34 - 43 ) disposed on all of the sliders ( 24 - 33 ) to hold the fixed axial position in a frictionally engaged manner.

11. The handling unit according to claim 10 , wherein the clamping device ( 12 ) is engaged exclusively with the plurality of sliders ( 24 - 33 ).

12. A process for handling a loop gripper module ( 11 ) with multiple grippers ( 13 - 22 ) held in or on a base body ( 23 ) and a plurality of moveable sliders ( 24 - 33 ), the process comprising:
providing the loop gripper module ( 11 ) with a clamping device ( 12 ) having a plurality of clamping receptacles ( 34 - 43 ) arranged in a row, wherein individual ones of the plurality of clamping receptacles are configured to hold individual ones of the plurality of moveable sliders which are disposed in the loop gripper module ( 11 ) such that each of the plurality of moveable sliders held in the clamping receptacles is held in a fixed axial position relative to an other of the plurality of sliders held in the plurality of clamping receptacles;
inserting the plurality of moveable sliders ( 24 - 33 ) into the plurality of clamping receptacles ( 34 - 43 ) of the clamping device ( 12 ).

13. The process according to claim 12 , wherein inserting the plurality of moveable sliders into the plurality of clamping receptacles comprises pushing the clamping device ( 12 ) including the plurality of clamping receptacles ( 34 - 43 ) onto the plurality of moveable sliders ( 24 - 33 ) simultaneously.

14. The process according to claim 12 , further comprising inserting the plurality of sliders into the plurality of clamping receptacles of the clamping device as the loop gripper module ( 11 ) is produced, or after it is produced such that the clamping device remains on the loop gripper module during its storage or transport.

15. The process according to claim 12 , further comprising:
inserting the loop gripper module ( 11 ) into a tufting machine while the clamping device ( 12 ) remains on the loop gripper module ( 11 ), and
removing the clamping device ( 12 ) from the loop gripper module ( 11 ) after the loop gripper module ( 11 ) is inserted into the tufting machine, and before the tufting machine is put into operation.

Assignees

• Groz Beckert Kg

Inventors

• Pintea Marius
• Wienen Manuel

Classifications

• D05C15/22 Primary

  Loop-catching arrangements, e.g. loopers; Driving mechanisms therefor · CPC title

• D05C15/24

  Loop cutters; Driving mechanisms therefor · CPC title