A pre-bending device

Abstract

The invention provides a pre-bending device, comprising several pre-bending units arranged side by side, each pre-bending unit comprising a pre-bending trolley (2) with a pre-bending head (3), characterized in that: said pre-bending head ( 3) It is mainly composed of a fixed block (7), a movable block (8) and an adjustment screw (10); the fixed block (7) is installed on the pre-bending trolley (2), and the adjustment screw ( One end of 10) is connected on the described movable block (8), and the shaft of described adjusting screw (10) is positioned on the described fixed block (7), and described fixed block (7) and described movable block ( 8) Groove (13) is formed between. By using the adjustable pre-bending head, the present invention satisfies the requirement of changing the size of the head of the asymmetrical section steel, makes the force point of the section steel pre-bending more reasonable, facilitates the pre-bending of the section steel, and can reduce the transmission device that can be controlled by the position. Motor Power.

Description

Technical field [0001] The invention relates to a pre-bending device for section steel, in particular to a pre-bending device for asymmetric section section steel. 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 asymmetrical section of certain types of steel, the cooling is uneven. 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 straightening machine and steel turning machine of the cooling bed subsequent equipment. [0003] The two pre-bending devices disclosed in the two patent documents with application numbers 200720201164.6 and 200810021210.3 respectiv...

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.

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