CN202527498U

CN202527498U - Tube drawing device for compound die of short mandrill

Info

Publication number: CN202527498U
Application number: CN2012200841681U
Authority: CN
Inventors: 王士渠; 王彦飞; 董丽君; 曹康乐; 王东升; 吴芸
Original assignee: 胡顺珍
Priority date: 2012-02-27
Filing date: 2012-02-27
Publication date: 2012-11-14
Anticipated expiration: 2022-02-27

Abstract

A tube drawing device for a compound die of a short mandrill mainly consists of the compound die, a base of a drawing machine, a seamless steel pipe to be drawn, a drawing machine, a drawing clamp, and a cylindrical short mandrill. The compound die is fixed on the base of the drawing machine, one head end of the seamless steel pipe to be drawn passes through an inner hole of the compound die first, and then is clamped by the drawing clamp on the drawing machine to pass through the cylindrical short mandrill to a reducing sizing ring belt part in small size of the inner hole of the compound die. Then, the seamless steel pipe to be drawn under the traction effect of the drawing machine moves forward and reduces the diameter and wall by combined action of the inner hole of the compound die and the cylindrical short mandrill in the process that the seamless steel pipe to be drawn moves forward.

Description

Short plug compound die pipe drawing device

Affiliated technical field

The utility model relates to a kind of short plug compound die pipe drawing device, belongs to metal rolled technical field.

Background technology

Seamless steel tube production cold-drawn device adopts short plug single mode tube drawing mostly at present, and the single mode tube drawing needs the multi-pass tube drawing just can obtain the qualified production tube of size, and the production cycle is long, and energy resource consumption is big, and production cost is high.

Summary of the invention

In order to solve the above-mentioned drawback of the short plug single mode of tradition pipe drawing device; The utility model provides a kind of short plug compound die pipe drawing device; Adopt this device to reduce about 10% than its draw power of single mode tube drawing, power consumption can be practiced thrift about 10%, and production efficiency improves about 80%.

The utility model solves the technical scheme that its technical problem adopted: compound die is fixed on the drawbench bed; Treat that its end of taking the lead of drawing seamless steel tubes at first passes the compound die endoporus; Then clamped the small size tube reducing sizing endless belt position that penetrates cylindrical short core print to compound die endoporus simultaneously by the puller gripper on the drawbench; Treat under the action of traction of drawbench that then drawing seamless steel tubes moves ahead, treat that drawing seamless steel tubes implements tube reducing and subtract wall in the process that moves ahead under the acting in conjunction of compound die endoporus and cylindrical short core print.

The beneficial effect of the utility model is: adopt short plug compound die tube drawing to become the tube drawing of the tube drawing of two passages of original single mode into a passage of present compound die, shortened the production cycle, practiced thrift the energy, improved production efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the operation principle sketch map of the utility model.

Fig. 2 is the front view of the utility model compound die.

Fig. 3 is the left view of the utility model compound die.

Fig. 4 is the A-A profile of the utility model compound die.

1. treat drawing seamless steel tubes among the figure, 2. drawbench bed, 3. compound die, 4. puller gripper, 5. drawbench, 6. cylindrical short core print, 7. core bar, 8. large scale tube reducing sizing endless belt, 9. small size tube reducing sizing endless belt.

The specific embodiment

In Fig. 1, Fig. 2, Fig. 3, Fig. 4; Compound die 3 is fixed on the drawbench bed 2; Treat that drawing seamless steel tubes 1 its end of taking the lead at first passes compound die 3 endoporus; Then clamped small size tube reducing sizing endless belt 9 positions that penetrate cylindrical short core print 6 to compound die 3 endoporus simultaneously by the puller gripper on the drawbench 54; Treat under the action of traction of drawbench 5 that then drawing seamless steel tubes 1 moves ahead, treat that drawing seamless steel tubes 1 implements tube reducing and subtract wall in the process that moves ahead under the acting in conjunction of compound die 3 endoporus and cylindrical short core print 6.The concrete structure of compound die 3 is: keep traditional single withdrawing pattern thickness constant, its effect is the crop loss that does not increase in the steel pipe drawing process; The withdrawing pattern inner hole structure re-designs; Design and produce the large scale tube reducing sizing endless belt 8 and small size tube reducing sizing endless belt 9 of two groups of descending arrangements of diameter dimension side by side at the axis direction of compound die 3 endoporus; During the drawing operation; Treat that drawing seamless steel tubes 1 at first carries out the tube reducing sizing first time through large scale tube reducing sizing endless belt 8, then carries out the tube reducing sizing second time through small size tube reducing sizing endless belt 9 again; The concrete structure of short plug is: be made up of core bar 7 and cylindrical short core print 6 two parts, core bar 7 is elongated cylindrical, and its length and diameter are confirmed by length and the diameter of treating drawing seamless steel tubes 1 and finished product seamless steel pipe; Cylindrical short core print 6 is a short cylinder, and its diameter is confirmed by the diameter of finished product seamless steel pipe.

Claims

1. one kind short plug compound die pipe drawing device; Mainly by compound die, drawbench bed, treat that drawing seamless steel tubes, drawbench, puller gripper, cylindrical short core print, small size tube reducing sizing endless belt form; It is characterized in that: compound die is fixed on the drawbench bed; Treat that its end of taking the lead of drawing seamless steel tubes at first passes the compound die endoporus, then clamped the small size tube reducing sizing endless belt position that penetrates cylindrical short core print to compound die endoporus simultaneously by the puller gripper on the drawbench.