Two-roller skew-rolling cold piercing and cold broaching machine for metal ingot
A metal ingot and skew rolling technology, applied in metal rolling, metal rolling, metal processing equipment and other directions, can solve the problems of poor surface quality of rolling pieces, high labor intensity of workers, troublesome equipment adjustment, etc., and achieve good product quality, The effect of low deformation resistance and large specification coverage
Inactive Publication Date: 2012-06-13
江苏包罗铜材集团股份有限公司
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Problems solved by technology
[0002] The existing two-roller and three-roller cross-rolling piercing and reaming machines need to use hot rolling when rolling steel pipes and copper pipes, that is, the billet needs to be heated by heating equipment, and a large amount of scale is produced before and after rolling. Loss, poor surface quality of rolled pieces, large equipment investment, high energy consumption, and there are defects such as high labor intensity of workers, large environmental pollution, troublesome equipment adjustment, etc.
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[0011] A two-roll cross-rolling metal ingot cold-piercing and cold-expanding machine has a frame 1, and two active rotating rolls 2 and 3 are mounted on the frame. Two passive rotating rollers 4, 5 that are in contact with the workpiece to be processed are arranged between the rollers. The center of the two active rotating rollers and the two passive rotating rollers are symmetrical. The two active rotating rolls are in the form of sleeve rolls. The two active rotating rolls adopt the form of adjustable rolling pressure angle. The surface of the two active rotating rolls is provided with multiple concave and protruding ring structures, so that a large deformation zone is formed between the two active rotating rolls, and the surface of each concave or protruding ring is smooth.
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The invention discloses a two-roller skew-rolling cold piercing and cold broaching machine for a metal ingot. The two-roller skew-rolling cold piercing and cold broaching machine is provided with a stand, two active-rotating type rollers are arranged on the stand, a pierced push rod is arranged between the two rollers, and two passive-rotating type rollers which are in contact with a machined workpiece are arranged between the two active-rotating type rollers. The invention can realize the piercing and broaching machining to the workpiece without additional heating devices for heating in the piercing and cold broaching process of workpiece rolling, and has reasonable structure, high machining efficiency, low energy consumption, good produced product quality and no environment pollution.
Description
Technical field: [0001] The invention relates to a metallurgical rolling equipment. Background technique: [0002] The existing two-roller and three-roller cross-rolling piercing and reaming machines need to use hot rolling when rolling steel pipes and copper pipes, that is, the billet needs to be heated by heating equipment, and a large amount of scale is produced before and after rolling. Loss, poor surface quality of rolled pieces, large equipment investment, high energy consumption, and there are defects such as high labor intensity of workers, large environmental pollution, and troublesome equipment adjustment. Invention content: [0003] The purpose of the present invention is to provide a two-roll cross-rolled metal ingot cold piercing and cold reaming machine that can realize the piercing or hole reaming process of the workpiece without heating by an additional heating device. . [0004] Technical solution of the present invention is: [0005] A two-roll cross-r...
Claims
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IPC IPC(8): B21B19/04B21B27/02
Inventor 张士新张空
Owner 江苏包罗铜材集团股份有限公司