CN102527755A

CN102527755A - Tube drawing device of spherical core head compound die

Info

Publication number: CN102527755A
Application number: CN2011104049668A
Authority: CN
Inventors: 王彦飞; 王士渠; 董丽君; 曹康乐; 王东升; 吴云
Original assignee: 胡顺珍
Priority date: 2011-11-27
Filing date: 2011-11-27
Publication date: 2012-07-04

Abstract

The invention relates to a tube drawing device of a spherical core head compound die. The tube drawing device mainly comprises the compound die, a baseframe of a drawing machine, a seamless steel tube to be drawn, the drawing machine, a drawing clamper, a spherical core head and a small-size sinking and sizing annular belt, and is characterized in that the compound die is fixed on the baseframe of the drawing machine, the head driving end of the seamless steel tube to be drawn penetrates an inner hole of the compound die and is then clamped by the drawing clamper on the drawing machine, the spherical core head is simultaneously penetrated to the part of the small-size sinking and sizing annular belt in the inner hole of the compound die, then the seamless steel tube to be drawn moves forward under the traction action of the drawing machine, and sinking and wall reduction are further performed on the seamless steel tube to be drawn during the forward movement process of the seamless steel tube under the common action of the inner hole of the compound die and the spherical core head.

Description

Spherical core print compound die pipe drawing device

Affiliated technical field

The present invention relates to a kind of spherical core print compound die pipe drawing device, belong to metal rolled technical field.

Background technology

Seamless steel tube production cold-drawn device adopts cylindrical core print single mode tube drawing mostly at present; The defective of this pipe drawing device is that draw power is bigger; Pass deformation is less, and cylindrical core print 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; Energy resource consumption is big, and production cost is high.

Summary of the invention

In order to solve the above-mentioned drawback of traditional cylindrical core print single mode pipe drawing device, the present invention provides a kind of spherical core print compound die pipe drawing device, adopts this device tube drawing that draw power is reduced, and pass deformation increases, and production efficiency improves.

The technical solution adopted for the present invention to solve the technical problems is: 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 spherical 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 spherical core print.

The invention has the beneficial effects as follows: adopt spherical core print compound die tube drawing to become the tube drawing of the tube drawing of two passages of original cylindrical core print single mode into a passage of present spherical core print compound die; Shortened the production cycle; Practiced thrift the energy, improved production efficiency, and the more cylindrical core print of draw power reduces.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

Fig. 1 is an operation principle sketch map of the present invention.

Fig. 2 is the front view of compound die of the present invention.

Fig. 3 is the left view of compound die of the present invention.

Fig. 4 is the A-A profile of compound die of the present invention.

1. treat drawing seamless steel tubes among the figure, 2. drawbench bed, 3. compound die, 4. puller gripper, 5. drawbench, 6. spherical 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 spherical 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 spherical core print 6.The concrete structure of compound die 3 is: the large scale tube reducing sizing endless belt 8 and small size tube reducing sizing endless belt 9 that design and produce two groups of descending arrangements of diameter dimension at the axis direction of compound die 3 endoporus side by side; 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 spherical core print 6 is: be made up of core bar 7 and spherical 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; Spherical core print 6 is spherical in shape, and its diameter is confirmed by the diameter of finished product seamless steel pipe.

Claims

1. spherical core print compound die pipe drawing device; Mainly by compound die, drawbench bed, treat that drawing seamless steel tubes, drawbench, puller gripper, spherical core print, small size tube reducing are fixed and form through endless belt; 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 passes the compound die endoporus, then clamped the small size tube reducing sizing endless belt position that penetrates spherical core print to compound die endoporus simultaneously by the puller gripper on the drawbench.