CN201291240Y

CN201291240Y - Pass structure of high-speed drawing stretching die

Info

Publication number: CN201291240Y
Application number: CNU2008201588415U
Authority: CN
Inventors: 卢伟
Original assignee: LIZHOU CEMENTED CARBIDE CO Ltd
Current assignee: LIZHOU CEMENTED CARBIDE CO Ltd
Priority date: 2008-10-21
Filing date: 2008-10-21
Publication date: 2009-08-19
Anticipated expiration: 2018-10-21

Abstract

The utility model discloses a hole-pattern structure of a high-speed-drawing stretching die. A lubrication area (3) is 25-45% as high as a stretching die body (1), and the lubrication angle is 60-80 degrees; a working area (4) is 35-50% as high as the stretching die body (1) and is 2-4 times as high as a sizing area (5); the sizing area (5) is 0.2-0.6 time as high as the diameter; and an outlet area (6) is 1/3-1/5 time as high as the stretching die body (1). The hole-pattern structure of the high-speed-drawing stretching die has long service life, simple structure and reliable performance, and can be widely applied to the high-speed metal product drawing industry.

Description

The pass structure of high speed drawing stretching die

Technical field

The utility model relates to a kind of high speed drawing stretching die, particularly relates to a kind of pass structure of high speed drawing stretching die.

Background technology

Past, because China's steel wire high speed drawing is backward relatively, wire-drawing equipment is outmoded, drawing speed lower (general 3-7m/s), and adopt traditional pass structure, the tradition pass structure is a circular arc tradition pass structure, and the pass structure in stretching die is made up of entrance region, lubricated district, workspace, sizing area and outlet area; Since the mid-80, introduced some high speed drawing wire-drawing equipments, drawing speed higher relatively (general 10-18m/s) adopts traditional pass structure still can not satisfy the production demand.

The utility model content

Technical problem to be solved in the utility model provides a kind of pass structure of high speed drawing stretching die of long service life.

Solve the problems of the technologies described above for sending out, the pass structure of the high speed drawing stretching die that the utility model provides, comprise the entrance region of stretching die body and pass structure thereof, lubricated district, workspace, sizing area and outlet area, the height in described lubricated district be described stretching die body height 25～45%, its lubricated angle be 60～80 the degree; The height of described workspace be described stretching die body height 35～50%, be 2～4 times of described sizing area height; The height of described sizing area is 0.2～0.6 times of its diameter; The height of described outlet area be described stretching die body height 1/3～1/5.

Adopt the pass structure of the high speed drawing stretching die of technique scheme, be convenient to bring lubricant into workspace and sizing area by lubricated district by the lashing wire genus, assurance is belonged to by lashing wire and obtains sufficient lubrication reduce friction power and heating phenomenon, be convenient to lubricant and enter the workspace very smoothly, play good lubrication; The workspace is to have suffered the nib most important parts, makes steel wire in the carrying out property distortion of this district, obtains needed shape and size, and it must be straight, makes lubricant form fine and close lubricating film in Steel Wire Surface.Sizing area makes by lashing wire and belongs to the further accurate shape and size that obtain to stablize, can make simultaneously core rod avoid wearing and tearing and very fast overproof, thereby improve the service life of stretching die body, its structure is straight, it is absolute cylinder, form a kind of trapezium structure (a stable wear-resisting stage) with the workspace, thereby improve the service life of core rod; Outlet area prevents to be belonged to by lashing wire and is scratched when pulling out nib, and unlikely the bursting apart of protection core rod sizing area.

Adopt the pass structure of the high speed drawing stretching die of technique scheme,, satisfy the high-tensile steel wires of merchant wire industry and the needs of high speed drawing than adopting traditional pass structure to improve 3～5 times service life.

In sum, the utility model is the pass structure of the high speed drawing stretching die of a kind of long service life and simple in structure, dependable performance, can be widely used in high speed metallic article drawing industry.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is traditional pass structural representation of stretching die.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Referring to Fig. 1, in stretching die body 1, be provided with nib, the structure of nib is made up of entrance region 2, lubricated district 3, workspace 4, sizing area 5 and outlet area 6, the effect in lubricated district 3 is to be convenient to be brought lubricant into workspace 4 and sizing area 5 by the lashing wire genus by it, its lubricated angle is controlled at 60～80 degree, be convenient to lubricant and enter the workspace very smoothly, play good lubrication, lubricated district 3 highly is 25～45% of stretching die body 1 height, guarantees to be belonged to by lashing wire to obtain sufficient lubrication the reduce friction power and the phenomenon of generating heat; The effect of workspace 4 is to have suffered the nib most important parts, makes steel wire in the carrying out property distortion of this district, obtains needed shape and size; Its structure is straight, highly is 2～4 times (setting up angle of wedge effect) of sizing area 5 height, also is 35～50% of stretching die body 1 height, makes lubricant form fine and close lubricating film in Steel Wire Surface.The effect of sizing area 5 is to make by lashing wire to belong to the further accurate shape and size that obtain to stablize, can make simultaneously nib avoid wearing and tearing and very fast overproof, thereby improve the service life of stretching die body 1, its structure is straight, it is absolute cylinder, the height of sizing area 5 is 0.2～0.6 times of its diameter, forms a kind of trapezium structure (a stable wear-resisting stage) with workspace 4, thereby improves the service life of core rod; The effect of outlet area 6 is to prevent to be belonged to by lashing wire to be scratched when pulling out nib, and unlikely the bursting apart of protection core rod sizing area, the height of outlet area 6 be described stretching die body 1 height 1/3～1/5.

Referring to Fig. 1 and Fig. 2, high-speed stretch nib type is optimized for linear structure, satisfy the high-tensile steel wires of merchant wire industry and the needs of high speed drawing than adopting traditional pass structure to improve 3～5 times its service life.

Claims

1, a kind of pass structure of high speed drawing stretching die, comprise the entrance region (2) of stretching die body (1) and pass structure thereof, lubricated (3), workspace (4), sizing area (5) and the outlet area (6) distinguished, it is characterized in that: the height in described lubricated district (3) be described stretching die body (1) height 25～45%, its lubricated angle be 60～80 the degree; The height of described workspace (4) be described stretching die body (1) height 35～50%, be 2～4 times of described sizing area (5) height; The height of described sizing area (5) is 0.2～0.6 times of its diameter; The height of described outlet area (6) be described stretching die body (1) height 1/3～1/5.