H-shaped copper pipe drawing die assembly

A drawing die and pipe die technology, applied in the field of H-shaped copper pipe drawing die assemblies, can solve the problems of difficulty in making special-shaped pipes, inability to draw small copper pipes, strength of small pipe fittings, etc. The effect of smooth drawing and precise forming

Pending Publication Date: 2022-07-29
福建捷思金属科技发展有限公司
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Problems solved by technology

[0007] The purpose of the present invention is to provide an H-shaped copper tube drawing die assembly, which can more stably draw circular copper tubes into H-shaped copper tubes, and solve the problem that small-sized copper tubes cannot be pulled, which leads to the production of special-shaped tubes. Difficult pr

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  • H-shaped copper pipe drawing die assembly
  • H-shaped copper pipe drawing die assembly
  • H-shaped copper pipe drawing die assembly

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[0037] see Figures 1 to 7 As shown, the present invention provides a technical solution: an H-shaped copper tube drawing die assembly, comprising:

[0038] Two sets of drawing die assemblies, one set of drawing die assemblies is assembled by the first tube drawing die 1 and the large lining core 3, and the other set of drawing die assemblies is the second tube drawing die 2 and the small lining core 32 are assembled together;

[0039] The first tube-drawing die 1 is a tube-drawing concave die with an H-shaped die hole in the middle, and the die hole penetrates the left and right sides of the first tube-drawing die 1;

[0040] The second tube-drawing die 2 is also a tube-drawing concave die with an H-shaped die hole in the middle, and the die hole penetrates the left and right sides of the second tube-drawing die 1;

[0041] The shape and size of the inner wall of the female die of the second tube-drawing die 2 is the same as the preset external shape and size of the cross-se...

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Abstract

The invention discloses an H-shaped copper pipe drawing die assembly in the technical field of pipe drawing, which comprises two sets of drawing die assemblies, one set of drawing die assembly is formed by assembling a first pipe drawing die and a large lining core in a matched manner, the other set of drawing die assembly is formed by assembling a second pipe drawing die and a small lining core in a matched manner and is a firm rod-shaped drawing pipe with a fixed position, and the drawing pipe is positioned in a pipe fitting in a non-contact manner; the large lining core or the small lining core is locked on the drawing pipe through the draw-in bolt, a round copper pipe can be drawn into an H-shaped copper pipe more stably, the problem that a small-size copper pipe cannot be drawn to manufacture a special-shaped pipe is solved, and the drawn copper pipe is smooth in surface, free of garland, stable in external shape, small in stress deformation, accurate in forming size and high in production efficiency. After being formed, the pipe fitting does not rebound and expand and does not deform again, and the strength of the pipe fitting can be slightly increased in the drawing process.

Description

technical field [0001] The invention relates to the technical field of drawing pipes, in particular to an H-shaped copper pipe drawing die assembly. Background technique [0002] The pipe drawing die is mainly used to draw copper pipes, steel pipes and other pipes, and is used in conjunction with the core head or the moving core head (also known as the inner mold, also often called the lining core). The pipe drawing die controls the outer diameter of the pipe. The core head controls the inner diameter size of the pipe. [0003] The drawing die form used in the production of stainless steel thin-walled tubes is mainly a conical die. The hole type of the drawing die is mainly composed of three parts, namely the entrance cone (lubrication and deformation area), the sizing area and the exit cone. The shape and size of each part of the drawing die determine the composition, properties and size of the drawn pipe, the reduction rate, the quality of lubrication, the drawing condit...

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Application Information

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IPC IPC(8): B21C3/02B21C1/24
CPCB21C3/02B21C1/24
Inventor 郑振义陈城周治东
Owner 福建捷思金属科技发展有限公司
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