CN201419203Y - Needle punching tool - Google Patents

Abstract

The utility model discloses eedle dashes utensil, it comprises drift and jumper bar, its characterized in that: there is a circular arc structure at the drift of punching tool and jumper bar joint department, its radius R equals H +2, has had the pitch arc of this section transition, the last hole that can guarantee die-cut back eedle is circular-arc transition with the angle that the drift formed to need not to process the abate again, once accomplish the die-cut process, it only needs a die-cut operation can accomplish link up and the abate to the pinhole that the eedle need be processed, avoided original drift need reprocess the operation of punching a hole of accomplishing the eedle.

Description

Needle punching tool

technical field

The utility model relates to a machine needle production and manufacturing equipment, specifically a punching tool structure used for machine needle punching.

Background technique

At present, domestic production of machine needle punching mostly uses the punch shown in Figure 2 to punch the pre-processed product of the machine needle. The punch cuts the metal axially, and the punch passes through the metal to flush out unnecessary materials. Since the machine needle is used to puncture knitwear, there should be no burrs and relatively sharp angles on the needle, otherwise it will damage the knitwear tissue and damage the strands. The right angle formed by the punching upper hole of the machine needle and the punch is blunt again, which requires 2 processes, which affects the efficiency of machine needle production.

Utility model content

The purpose of this utility model is to overcome above weak point, a kind of machine needle punch tool of novel structure is provided.

The technical scheme adopted by the utility model is: the utility model machine needle punching tool is composed of a punch head and a punch rod, and is characterized in that: there is an arc structure at the punch head and the punch rod joint of the punch tool, and its radius R=H +2, with this transitional arc, it can ensure that the angle formed by the upper hole of the needle and the punch is a circular arc transition after punching, so that there is no need for further processing and blunting, and the punching process can be completed at one time.

The beneficial effect brought by the utility model is that it only needs one punching operation to complete the penetration and bluntness of the needle hole that needs to be processed, which avoids the need for reprocessing of the original punch to complete the punching of the machine needle operate.

Description of drawings

Fig. 1 is a sectional view of the machine needle after punching by the original machine needle punching tool.

Fig. 2 is the front view of the original organic needle punching tool.

Fig. 3 is a sectional view of the machine needle after being punched by the machine needle punching tool of the present invention.

Fig. 4 is the front view of the needle punching tool of the present utility model.

In the figure, H is the height of the punch, and R is the radius of the transition arc.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

The needle punching tool of the utility model is composed of a punch head and a punch rod. The arc can ensure that the angle formed by the upper hole of the needle and the punch is a circular arc transition after punching, so that there is no need for further processing and blunting, and the punching process can be completed at one time.

After the original organic needle punching tool is punched, the upper surface of the machine needle and the punching surface form an angle of 90 degrees, and the angle needs to be cut and blunted. It must be completed in two processes. The punching tool provided by the utility model, its After punching, the punching surface coincides with the arc, and it can be used without blunting again. Using the punching tool described in the utility model, it only needs one punching operation to complete the penetration and cutting of the needle hole to be processed by the machine needle. It is blunt, which avoids the need for reprocessing of the original punch to complete the punching operation of the needle.

Claims (1)

1. A machine needle punching tool, which is composed of a punch head and a punch rod, and is characterized in that: there is an arc structure at the joint of the punch head and the punch rod of the punch tool.

Images