Rear bar cradle movement control cam

Abstract

The invention belongs to the technical field of a warp knitting mechanism part and particularly relates to a movement control cam for a rear guide bar cradle of a multi-guide-bar warp knitting machine. The movement control cam for the rear guide bar cradle comprises a wheel disc and a shaft neck integrated with the wheel disc, wherein the shaft neck is connected with a camshaft; the outer circumference of the wheel disc is an external movement cycle curved surface; an internal movement cycle curved surface is arranged on the other end surface, relative to the shaft, of the wheel disc; the internal movement cycle curved surface is the guiding curved surface used for controlling the cyclic motion of the rear guide bar cradle; each of the internal movement cycle curved surface and the external movement cycle curved surface consists of a high-speed ascending segment, a low-speed ascending segment, a low-speed descending segment and a high-speed descending segment; smooth transition is realized among the movement segments; the internal movement cycle curved surface and the external movement cycle curved surface are conjugated; the movement control cam is applicable to high-speed control transmission, has a regular and reasonable structure, realizes small impact during transmission control, is wear resistant and realizes stable transmission, so that the rear guide bar cradle is enabled to move stably, and the efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of warp knitting machine components, in particular to a rear bar cradle motion control cam of a multi-bar warp knitting machine. Background technique [0002] The operation speed of the rear bar of the warp knitting machine is getting higher and higher, and the operation of the rear bar of the warp knitting machine is mainly controlled by the rear bar cradle cam and a series of transmission parts. The current structure of the rear bar cam is unreasonable, and the control The arc of the curved surface of the transmission is relatively steep, and the span of the cam is too large, and the existing cam generally uses the outer peripheral surface of the wheel as the main control surface. The outer peripheral surface control requires the combination of multiple cams, and the structure is complex. During the process, the vibration is very serious, the impact is large and easy to wear, the noise is large, and the tr...

AI Technical Summary

Problems solved by technology

[0002] The operation speed of the rear bar of the warp knitting machine is getting higher and higher, and the operation of the rear bar of the warp knitting machine is mainly controlled by the rear bar cradle cam and a series of transmission parts. The current structure of the rear bar cam is unreasonable, and the control The arc of the curved surface of the transmission is relatively steep, and the span of the cam is too large, and the existing cam generally uses the outer peripheral surface of the wheel as the main control surface. The outer peripheral surface control requires the combination of multiple cams, and the structure is complex. During the process, the vibration is very serious, the impact is large and easy to wear, the noise is large, and the transmission is unstable, which greatly reduces the stability of the operation of the rear bar and reduces the efficiency.

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