Braking device of jig dyeing machine

Abstract

The invention relates to a braking device of a jig dyeing machine. Brake mechanisms of cloth rollers of the jig dyeing machine can accurately control a pair of cloth rollers to speed down synchronously until the cloth rollers stop. The jig dyeing machine comprises a rack and a pair of cloth rollers which are horizontally arranged on the rack, and also comprises a controller and braking devices, wherein each braking device comprises a brake hub, a brake belt and a pneumatic driving device which drives the brake belt to move, and the pneumatic driving device is connected with the controller; and each brake hub is arranged at the head of each cloth roller, and one end of each brake belt is connected to the rack through a hinge fulcrum shaft. Compared with the prior art, the braking device solves the problems of color deviation between the initial dyeing and the final dyeing of cloth, caused by too long run-out time after a working procedure is finished by a frequency-converting jig dyeing machine, and waste of dyes, water, electricity and steam and incapability of environment protection and energy saving caused by invalid works due to too long head ends because the pneumatic speed reducing braking devices are additionally arranged at the heads of the cloth rollers (shaft heads). Therefore, high-speed running fabric rolls, especially huge fabric rolls (phi1400), can be synchronously, rapidly and smoothly decelerated until the fabric rolls stop.

Description

technical field [0001] The invention relates to a jigger in the textile printing and dyeing industry, in particular to a braking mechanism for a cloth jigger roller of the jigger. Background technique [0002] The existing AC frequency conversion jigger only relies on the decreasing frequency to stop and decelerate. Since the jigger is running at a high speed, there is a lot of inertial kinetic energy in the cloth winding roller and the cloth roll. If the frequency decreases too fast, it is easy to cause the back roll to run fast and cause the cloth to be jammed. , or the fabric is broken due to excessive tension, which is the bottleneck restricting the improvement of the performance of the jigger. In addition, in some underdeveloped areas, due to cost factors and power quality factors, it is difficult to properly apply frequency conversion technology. SUMMARY OF THE INVENTION [0003] In view of the above problems, the present invention provides a braking device for a ji...

AI Technical Summary

Problems solved by technology

[0002] Existing AC variable frequency dyeing jiggers only rely on decreasing frequency to stop and slow down. Since the jigger is running at a high speed, there is a lot of inertial kinetic energy in the cloth roll and the cloth roll. If the frequency decreases too fast, it will easily cause the rear roll to run fast and choke the cloth. , or the fabric is broken due to excessive tension, which is the bottleneck that restricts the performance of the jigger

In addition, in some underdeveloped areas, due to cost factors and power quality factors, it is difficult to properly apply frequency conversion technology

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