Buffer mechanism in mask belt tensioning device

Abstract

The invention provides a buffer mechanism in a mask belt tensioning device, which belongs to the technical field of machinery. It solves the problem of poor stability existing in the prior art. The buffer mechanism in the mask belt tensioning device is located inside the push cylinder, including a swing rod, a buffer cylinder, a limit rod and a buffer assembly. The inside of the push cylinder has a concave connection seat, and the inner end of the above swing rod is hinged in the connection seat. , the outer end of the swing rod protrudes from the inner side of the push tube, the buffer tube is fixedly connected to the middle part of the swing rod, the above-mentioned limit rod is fixedly connected to the lower part of the connecting seat and the lower side of the buffer tube is against the limit rod, and the above-mentioned buffer assembly is connected to The upper part of the connection seat and the buffer assembly have a tendency to abut against the upper side of the buffer cylinder. The buffer mechanism in the mask belt tensioning device has high stability.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a buffer mechanism in a mask belt tensioning device. Background technique [0002] The mask belt tensioning device includes a connecting rod, a guide rod, a return spring and a push cylinder. The inner end of the above-mentioned connecting rod is hinged on the guide rod, and the above-mentioned push cylinder is sleeved on the guide rod. The number of the connecting rods is two, and the above-mentioned reset The two ends of the spring are respectively connected to the middle parts of the two connecting rods, and the two connecting rods tend to lean against the two sides of the push cylinder under the elastic force of the return spring. [0003] In the initial state, the push cylinder moves down, and the outer ends of the two connecting rods are in the shape of outward expansion. After the push cylinder moves up, the two connecting rods are pushed by the push cylinder to close the...

AI Technical Summary

Problems solved by technology

[0004] However, in the tension state of the existing tensioning device, the clamping force of the outer ends of the two connecting rods on the mask belt is relatively large, which may easily cause the mask belt to be damaged or cause the mask belt to be unable to move smoothly by the tensioning device. , its stability is relatively poor

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