Novel high-performance back-through ejector rod structure

Abstract

A novel high-performance back-through ejector rod structure is characterized by comprising a back-through ejector rod mounting base, a screw head, a screw hole, a limiting screw, a fixing bolt, a screw, a screw mounting hole, an ejector rod base and an ejector rod roller base; the ejector rod base is arranged on the back-through ejector rod mounting base; the screw mounting hole is formed in the ejector rod base; the screw is installed in the screw mounting hole in a threaded connection mode; the screw head is arranged at the lower end of the screw; the screw hole is formed between the screw head and the ejector rod base; the limiting screw is arranged in the screw hole; the ejector rod base and the back-through ejector rod mounting base are fixed with the fixing bolt; and the ejector rodroller base is arranged at the upper end of the ejector rod base. The novel high-performance back-through ejector rod structure has the advantages of simple structure, convenient assembly and disassembly, time and labor saving, high abrasion resistance and long service life; and meanwhile, the radial stress of the back-through ejector rod is reduced based on the rolling principle so as to preventbreakage.

Description

technical field [0001] The invention relates to a component of a multi-station cold heading machine, in particular to a roller-type back-through ejector device for a multi-station cold heading machine, which belongs to the technical field of textile machinery. Background technique [0002] During the work of the multi-station cold heading machine, the bar is fed through the roller drive, and the material is fed in sequence, cutting, pressing the ball, pressing the angle, and punching. Several processes are completed by one machine. The cold heading stations are arranged horizontally, with accurate positioning , stable operation, convenient maintenance and so on. Jack bolts are used in the back-through ejector pin devices of many multi-station cold heading machines at home and abroad. The application of this type of jack structure has a long history, especially in the machinery industry. The defect of this type of structure is: due to the sliding friction between the jack bo...

AI Technical Summary

Problems solved by technology

The defect of this type of structure is: due to the sliding friction between the jack bolt and the rear outlet rod, the rear outlet ejector rod and the rear outlet rod are easy to wear, so frequent debugging and regular replacement of the jack bolt are required; when the cold heading machine is running, the rear outlet The rocker arm swings back and forth, so that there is a large angle between the top bolt and the rear access rod when the jack is lifted, resulting in a large radial force on the rear access rod, which makes the rear access rod easy to break and needs to be replaced. Troublesome and high cost; the plug bolt is in point contact with the rear outlet rod, and the end face of the rear outlet rod will be easily dented if the working time is long, which will cause deformation of the rear outlet rod and swelling of the rear outlet screw sleeve

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