Upper and lower shear telescopic conjugate cam for folded edge device

Abstract

The invention relates to an upper and lower shear telescopic conjugate cam for a folded edge device, in particular to a high-precision upper and lower shear telescopic conjugate cam for the folded edge device, and belongs to the technical field of spinning equipment. The upper and lower shear telescopic conjugate cam for the folded edge device comprises a slide seat, wherein the two ends of the slide seat are respectively provided with a first rolling wheel, a second rolling wheel, a first cam and a second cam, the first rolling wheel and the second rolling wheel can freely rotate, the first cam and the second cam are integrally formed, the first cam and the second cam are driven by a cam shaft to simultaneously rotate, the cam shaft is arranged at the eccentric part of the first cam and the second cam, the eccentric curve surface of the first cam is tightly pasted with the circumference surface of the first rolling wheel, and the eccentric curve surface of the second cam is tightly pasted with the circumference surface of the second rolling wheel. The upper and lower shear telescopic conjugate cam has the advantages that the conjugate precision is high, the noise is reduced, and the curve surfaces of the cams are tightly pasted with the circumference surface of the rolling wheels, so the cam and the rolling wheel cannot generate the collision vibration during the operation, the operation speed is greatly accelerated, the operation speed of the folded edge device is accelerated, and the yield is increased.

Description

Technical field [0001] The invention relates to an upper and lower scissors telescopic conjugate cam of a folding-in device, in particular to a high-precision conjugate cam of the upper and lower scissors telescopic of a folding device, belonging to the technical field of textile equipment. Background technique [0002] The fold-in device is abbreviated as the smooth edge machine, which is installed on the rapier loom to cut the weft yarns on both sides of the fabric to be woven, so that there is no flash on both sides of the fabric, and the warp yarns will not loosen. When the fabric is smooth edge It can increase the edge strength and maintain the fabric width, and has the functions of convenient sizing, washing, and cutting edge reduction. [0003] Nowadays, all the fabrics exported in China need smooth edges, so now many weaving manufacturers' rapier looms are mostly equipped with folding-in edge devices. This conjugate cam is the core component of the folding-in device. At p...

AI Technical Summary

Problems solved by technology

Because the cam is a kind of component that is difficult to process and detect, especially the two-piece conjugate cam, it is quite difficult to manufacture. The single-piece cam is relatively easy to process, but the conjugate accuracy of the two-piece cam is very low. Difficult to guarantee, the assembled conjugate cam is easy to cause the slack of the assembled fastener during operation and shock vibration, which will cause the relative position of the two cams to shift, the conjugate precision is not good, and the machine will produce shock vibration during operation, rough sound, and accelerate the wear of cams and rollers, and limit the operating speed of the tuck-in device

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