Automatic chuck for bundling strip cutting machine

Abstract

The invention provides an automatic chuck for a bundling strip cutting machine, and the automatic chuck is efficient, safe and firm in clamping. The automatic chuck comprises a chuck body. A plurality of tracks which radiate outwards along the center are arranged on the end face of the chuck body. Each track comprises an avoiding notch and a sliding rail from interior to exterior, wherein the avoiding notch is internally provided with an ejector claw ejecting outwards from the center when the chuck works, the sliding rail is internally provided with a clamping arm conducting tight clamping towards the center from the outside when the chuck works. A drive mechanism of each ejector claw and a drive mechanism of each clamping arm are independent of each other. When the automatic chuck works, the clamping arms can be used for rapidly and efficiently clamping the periphery of a cloth roll, the ejector claws are used for ejecting the inner circumferential wall of a paper tube of the cloth roll, and the clamping arms and the ejector claws are driven by air cylinders; and the whole cloth roll fixing process is fast and efficient, clamping is firm, the situation that the human hand gets close to the chuck for operation is not needed, and safety and reliability are achieved.

Description

technical field [0001] The invention relates to the technical field of clothing finishing and ironing machinery, in particular to an automatic chuck for a strip cutting and binding machine. Background technique [0002] Bundle cutting machine is a machine that cuts raw cloth rolls into bundles of specified width according to production requirements. It is widely used in gift packaging, colorful flag making, decorative accessories and other industries. The general cross-sectional structure of cloth roll is as follows: figure 1 As shown, the center of the cloth roll is a paper tube. When cutting the bundles, the paper tube is inserted into the central axis of the bundle cutter, and then one end of the cloth roll is clamped by the claws on the chuck, and then the cloth roll is driven to rotate by the chuck, and then cut. The chuck of the existing strip cutting machine generally adopts the manual universal chuck on the common machine tool, and the outer periphery of the cloth...

AI Technical Summary

Problems solved by technology

If the length of the claw is lengthened, the clamping part of the cloth roll will usually be deformed due to the clamping of the claw, and can no longer be used as a normal and qualified bundle material. The material at the end is wasted; and if the clamping force of the jaws is increased, the paper tube inside the cloth roll will be slightly shrunk and deformed inward, and the paper tube will be twisted during rotary cutting, resulting in inaccurate cutting size of the end cloth roll , prone to error;

[0004] 2. For each cutting work, it is necessary to manually operate the chuck to clamp the cloth roll at the beginning and remove the remaining material after cutting, and it is necessary to approach the chuck with hands when getting the remaining material. big security risk

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