Roller wheel type gripper opening mechanism of gripper loom

Abstract

The invention relates to a roller type rapier forming mechanism of rapier loom, which comprises a rolling bearing (1), a separate sleeve (2), a rapier forming base (3), screws (4), guide rails (5), a left rapier head (6), a rapier forming block (7), yarn clamping reeds (8), and yarn clamping blocks (9), wherein the rolling bearing (1) and the separate sleeve (2) are arranged on the rapier formingbase (3) through the screws (4); the rapier forming base (3) is arranged on the guide rails (5); the rapier forming block (7), the yarn clamping reeds (8) and the yarn clamping blocks (9) are arranged on the left rapier head (6); and the left rapier head (6) is slidably connected with the guide rails (5). When the left rapier head (6) retracts along the guide rails (5), the rapier forming block (7) contacts the rolling bearing (1) and is compressed by the rolling bearing (1) to drive the yarn clamping reeds (8) to move downwards, so that the rapier head is opened. The rapier forming mechanismcan ensure accurate open amount of the rapier head and less motion resistance, and solve the abrasion problem of rapier former of high-speed rapier loom.

Description

technical field [0001] The invention belongs to rapier looms, in particular to a roller-type rapier opening mechanism of a rapier loom. Background technique [0002] At present, most of the left sword opening mechanisms of rapier looms at home and abroad use nylon block to open the sword. The nylon block is installed on the sword seat. The yarn reed moves downward to open the sword head, so that the suction nozzle can clean the sword head and weave at high speed. Its basic structure is as image 3 and Figure 4 shown. [0003] exist image 3 Middle, 16-yarn clamping reed, 17-sword opening block, 18-yarn clamping block [0004] exist Figure 4 Middle, 10-spacer, 11-open sword seat, 12-screw, 13-left sword head, 14-guide rail, 15-nylon block. [0005] The left rapier moves backward when the weft feeding is finished. When the backward movement reaches the end point, the opening block on the rapier and the nylon block contact each other, and the opening block of the rapier ...

AI Technical Summary

Problems solved by technology

[0005] The left rapier moves backward when the weft feeding is finished. When the backward movement reaches the end point, the opening block on the rapier and the nylon block contact each other, and the opening block of the rapier slides over the lower surface of the nylon block. This movement belongs to sliding friction , the friction resistance is large, and the nylon block is easy to wear, especially when the loom rotates at a high speed, the nylon block wears more seriously

The worn nylon block cannot be pressed down to open the sword block, the yarn clamping port of the sword head cannot be opened, and the air suction nozzle cannot clean the sword head, resulting in frequent weft stops and affecting the weaving quality

This kind of sword opener cannot be positioned accurately, is easy to wear and needs to be adjusted frequently, which affects the quality and efficiency of weaving

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