A perforating needle installation structure for an extrusion machine

Abstract

The invention discloses a perforating needle mounting structure of an extruder. The perforating needle mounting structure comprises a perforating needle, a perforating needle bearing, a perforating needle supporting seat and a perforating beam, wherein the perforating needle is fixedly arranged on the perforating needle bearing; the perforating needle bearing is fixedly arranged in the perforating needle supporting seat; the perforating needle supporting seat is fixedly arranged in the perforating beam; the perforating needle is fixedly arranged in the perforating needle supporting seat in a taper threaded connection mode; at least two cylindrical sections which are used for positioning in a radial direction with the perforating needle supporting seat are arranged on the perforating needle bearing in a spaced manner; a step hole is formed in the perforating beam; the front end of the perforating needle supporting seat is arranged on the step surface of the step hole; and the tail end of the perforating needle supporting seat is provided with at least two cylindrical sections which are used for positioning in the radial direction with the step hole in the spaced manner. The perforating needle mounting structure of the extruder is convenient to dismount; and the center of the perforating needle, the center of the perforating needle bearing and the center of the perforating needle supporting seat are more accurate and reliable to position.

Description

technical field [0001] The invention relates to a perforating needle of an extruding machine, in particular to an installation structure of the perforating needle of an extruding machine. Background technique [0002] Usually, the perforating needle device of the extruder is divided into perforating needle, perforating needle support, perforating needle supporting seat and perforating beam, wherein the perforating needle is fixed on the perforating needle support, and the perforating needle support is fixed on the perforating needle supporting seat, and the perforating needle supporting seat It is fixed on the perforated beam. The perforated beam is in the abdominal cavity of the moving beam. It has four sets of guide rails for positioning: left, upper, left, lower, right, upper, right, and lower. It can move horizontally along the direction of the extrusion center to complete the perforation action. The perforator support and the perforator needle also have separate guides ...

AI Technical Summary

Problems solved by technology

[0004] 1) The perforation needle support and the perforation needle support seat use common threads to cooperate. It is difficult to tighten and loosen the common threads, and it is easy to get stuck. The operating space in the abdominal cavity of the moving beam is small. The disassembly and assembly of the perforating needle support causes great inconvenience;

[0005] 2) Tightening the perforating needle support is operated by the wrench bayonet machined on the surface of the perforating needle support. When the force is too large, the surface is prone to scratches, which affects the appearance;

[0006] 3) It is difficult to accurately locate

Images