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Prebending device

A pre-bending and pre-bending technology, which is applied in the field of pre-bending devices for asymmetric section steel, can solve the problems of heavy pre-bending workload, increased production costs, increased equipment costs, etc., and achieves long service life and improved work efficiency , focus on reasonable effects

Active Publication Date: 2010-05-12
CISDI ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of traditional pre-bending device needs to be equipped with multiple pre-bending heads for different types or the same type of steel with different specifications. When dealing with specific types and specifications of steel, a specific pre-bending head is applicable, and when replacing and processing other types or specifications of steel. Replace the corresponding pre-bend
Equipped with multiple pre-bends in this way, it greatly increases the cost of the equipment
At the same time, the workload of replacing the pre-bend is heavy and time-consuming, which also increases the production cost virtually.

Method used

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Examples

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Embodiment 1

[0021] Such as figure 1 , figure 2 , image 3 As shown, a kind of pre-bending device comprises several pre-bending units arranged side by side, and each pre-bending unit includes a pre-bending dolly 2 with a pre-bending head 3, and each pre-bending unit passes the pre-bending dolly by a chain 4 2. The position-controllable transmission device 1 and the tension mechanism 6 are integrated into one body. The position-controllable transmission device 1 and the tension mechanism 6 are fixed on the frame 5. When the position-controllable transmission device 1 is working, the chain 4 Drive the pre-bending trolley 2 to move on the frame 5;

[0022] The pre-bend 3 is mainly composed of a fixed block 7, a movable block 8 and an adjusting screw 10;

[0023] The inside of the movable block 8 is equipped with a fixed nut 9, and one end of the adjusting screw 10 is connected to the movable block 8 by the fixed nut 9; Matching circular groove 14, the adjustment screw 10 is placed in the...

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Abstract

The invention provides a prebending device, which comprises a plurality of prebending units arranged side by side. Each prebending unit comprises a prebending trolley (2) with a prebending head (3). The prebending device is characterized in that: each prebending head (3) mainly comprises a fixed block (7), a movable block (8) and an adjustment screw (10), wherein the fixed block (7) is arranged on the prebending trolley (2); one end of the adjustment screw (10) is connected on the movable block (8); the screw body of the adjustment screw (10) is positioned on the fixed block (7); and a groove (13) is formed between the fixed block (7) and the movable block (8). The prebending device meets the requirement of the change of the head part of asymmetric sectional steel by using the adjustable prebending head, can make an acting point more rational when the sectional steel is prebent, is convenient for prebending the sectional steel, and can reduce the motor power of a transmission of which the position can be controlled.

Description

technical field [0001] The invention relates to a pre-bending device for profile steel, in particular to a pre-bending device for profile steel with asymmetric section. Background technique [0002] At present, with the rapid development of the manufacturing industry, the requirements for section steel continue to increase, especially for the length of long section steel. However, in the production process of section steel, due to the asymmetric cross-section of certain types of steel, the cooling is uneven, and after cooling, the section steel will bend to the side with a smaller specific surface area. The amount of bending increases with the length of the section steel. When the amount of bending exceeds a certain range, it will affect the normal operation of the subsequent equipment of the cooling bed, such as straighteners and turning machines. [0003] The two pre-bending devices respectively disclosed in the two patent documents with application numbers 200720201164.6...

Claims

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Application Information

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IPC IPC(8): B21D11/00B21D11/22
Inventor 张荣滨李图学罗贤勇闵建军
Owner CISDI ENG CO LTD
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