Stylet motion mechanism of loop warp knitting machine

Abstract

The invention discloses a stylet motion mechanism of a loop type warp knitting machine. The stylet motion mechanism comprises a stylet, a stylet bed, a swing arm, a rotary shaft rotatably mounted on a rack and a transmission main shaft rotatably mounted in an oil tank, wherein the stylet is fixed on the stylet bed; the swing arm is fixed on the rotary shaft; the stylet bed is fixed at the front end of the swing arm; a first crank, a first connecting rod, a triangular connecting rod, a second crank and a second connecting rod are arranged between the transmission main shaft and the swing arm; the lower end of the first connecting rod is rotatably connected with the first crank; the upper end of the first connecting rod is rotatably connected with the top end of the triangular connecting rod; the left bottom end of the triangular connecting rod is rotatably connected with the second crank; one end of the second connecting rod is rotatably connected with the right bottom end of the triangular connecting rod; the other end of the second connecting rod is rotatably connected with the rear end of the swing arm; the first crank and the second crank are driven to rotate by the transmission main shaft; the rotation directions of the first crank and the second crank are opposite. In the stylet motion mechanism disclosed by the invention, the stylet stops for relatively long time in two extreme positions of reciprocating motion, and does not experience impact in motion; the working stability is good, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to a knitting mechanism of a warp knitting machine, in particular to a needle core movement mechanism in the knitting mechanism of a pile type warp knitting machine. Background technique [0002] The needle core is one of the main loop forming parts in the warp knitting machine, and its corresponding movement realization mechanism is called the needle core movement mechanism. Different warp knitting machine models have different requirements for the movement of the needle core, and the structure types of the needle core movement mechanism used are also different. [0003] The needle core movement mechanism in the existing few-comb high-speed warp knitting machine comprises needle core, needle core bed, swing arm, the knitting main shaft used for knitting and knitting that is rotatably installed on the warp knitting machine frame and the rotating ground. The transmission main shaft installed in the oil tank of the warp knitting ma...

AI Technical Summary

Problems solved by technology

For such a motion requirement, the single-degree-of-freedom planar linkage mechanism cannot meet it, and the planar linkage-cam combined motion mechanism can realize it, but when working, the existence of the high cam pair will increase the contact stress, and there will be impact force during the movement, which will lead to Poor stability; in addition, the warp knitting machine has a higher production cost due to the higher manufacturing cost of the cam

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