CN201329375Y

CN201329375Y - Extrusion pad for steel pipe heat extruder

Info

Publication number: CN201329375Y
Application number: CNU200820227724XU
Authority: CN
Inventors: 王国红; 赵立慧
Original assignee: Taiyuan Heavy Industry Co Ltd
Current assignee: Taiyuan Heavy Industry Co Ltd
Priority date: 2008-11-27
Filing date: 2008-11-27
Publication date: 2009-10-21
Anticipated expiration: 2018-11-27

Abstract

The utility model discloses an extrusion pad for a steel pipe heat extruder, which relates to heat extrusion tools. The extrusion pad in the prior art adopts a flat pad structure, can not be glued with remnant materials in the extrusion process, can not meet the automatic program control requirement, and has the disadvantages of low work efficiency and high labor intensity. The extrusion pad is in a hollow or solid cylindrical shape, the end surface in contact with a billet is in a conical shape, and grooves are processed on the end surface. Because the grooves are processed on the end surface, the extrusion pad can be perfectly glued with the remnant materials, and the extrusion pad and the remnant materials can not be automatically disengaged before the separation of the extrusion pad and the remnant materials, and the automatic program control requirement is satisfied. Thereby, the protection efficiency of the heat extruder is improved, the shutdown time is reduced, the work intensity is reduced, and the service life of the tool is prolonged.

Description

The dummy block that is used for the steel pipe heat extruder

Technical field

The utility model relates to the heat extruder instrument.

Background technology

The dummy block of steel pipe heat extruder is to be placed between billet and the pressure ram, is used for transmitting extruding force, and avoids pressure ram directly to contact with the high temperature billet, prevents the instrument of pressure ram end wear and distortion.The operating position of dummy block as shown in Figure 1, wherein: 1 be pressure ram, 2 for pecker, 3 for dummy block, 4 for hollow ingots, 5 for recipient, 6 for extrusion die.

In steel pipe hot extrusion operation, dummy block does not separate smoothly with pressing complementary energy, is the key that realizes automatic program control.The dummy block of prior art adopts plain cushion structure (both ends of the surface that are cylindrical dummy block flush), its shortcoming is to have caused dummy block and pressed surplus can not being sticked together, can not satisfy the requirement of automatic program control, not only operating efficiency is very low, and has increased labour intensity.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of prior art; a kind of dummy block that is used for the steel pipe heat extruder is provided; this dummy block can be sticked together preferably with pressure is surplus; satisfy the requirement of automatic program control, thereby improved the productivity ratio of steel pipe heat extruder, the service life that has reduced downtime, alleviated labour intensity, improved instrument.

The utility model is achieved through the following technical solutions its goal of the invention.

A kind of dummy block that is used for the steel pipe heat extruder, cylindrical, it is characterized in that: described dummy block is a hollow cylinder, is conical at the end face that contacts with hollow ingots, and at its end face processing groove.

Described dummy block is a solid cylindrical, is conical at the end face that contacts with solid billet, and at its end face processing groove.

The utility model compared with prior art owing to adopt end face to process fluted dummy block, can make dummy block be sticked together preferably with pressure is surplus, does not throw off automatically before surplus the separation with pressure at dummy block, satisfies the requirement of automatic program control.Thereby the productivity ratio of steel pipe heat extruder, the service life that has reduced downtime, alleviated labour intensity, improved instrument have been improved.

Description of drawings

Fig. 1 is the operating position schematic diagram of dummy block in steel pipe hot extrusion operation;

Fig. 2 is the structural representation (front view) of hollow dummy block;

Fig. 3 is the left side view of Fig. 2;

Fig. 4 is the structural representation (front view) of solid dummy block;

Fig. 5 is the left side view of Fig. 4;

Fig. 6 is for dummy block and press the surplus schematic diagram that is sticked together.

Below in conjunction with accompanying drawing and by preferred embodiment the utility model is further described.

The specific embodiment

Shown in Fig. 1,2,3,4,5,6, a kind of dummy block that is used for the steel pipe heat extruder, cylindrical.Described dummy block 3 is a hollow cylinder, is conical at the end face 3-2 that contacts with hollow ingots 4, and at its end face processing groove 3-1.

Described dummy block 3 can be solid cylindrical, is conical at the end face 3-2 that contacts with solid billet 4, and at its end face processing groove 3-1.

Dummy block 3 is processed with some groove 3-1 with the end face of billet 4 contact jaws, and dummy block 37 is sticked together preferably with pressing to surplus, and makes dummy block and presses surplusly not throw off automatically before separating, thereby satisfy the requirement of automatic program control.Contact end face 3-2 is conical, is beneficial to reduce the stressed and billet centering of pressure ram.

Claims

1, a kind of dummy block that is used for the steel pipe heat extruder is cylindrical, it is characterized in that: described dummy block (3) is conical at the end face (3-2) that contacts with billet (4), and at its end face processing groove (3-1).