CN201271665Y

CN201271665Y - Aluminum section bar hot extrusion for high cantalever guide rail

Info

Publication number: CN201271665Y
Application number: CNU2008200395839U
Authority: CN
Inventors: 高宗周; 李占胜
Original assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Current assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Priority date: 2008-09-01
Filing date: 2008-09-01
Publication date: 2009-07-15
Anticipated expiration: 2018-09-01

Abstract

The utility model relates to a hot extrusion die of high cantilever guide rail aluminum profile, which is mainly used for the hot extrusion of the guide rail profile with higher cantilever and smaller opening. The hot extrusion die consists of an upper die (1) and a lower die(2), wherein, four symmetrical relief-holes (1.1) and a relief-bridge (1.2) which is arranged in a cross shape are symmetrically arranged on the feed surface of the upper die (2); and three auxiliary die cores (1.3) are arranged on a discharge surface in a straight line; an anti-eccentric pinhole(1.5) is arranged at the center of each auxiliary die core, and the bridge position of the discharge surface of the upper die (1) moves upwards to form a welding zone (1.4); the feed surface of the lower die (2) is directly provided with a die cavity(2.1) instead of a welding chamber (2.1), and the die cavity(2.1) forms three cantilevers (2.2) on the feed surface of the lower die(2); anti-eccentric pins (2.3) are arranged at the centers of the three cantilevers (2.2), and the three anti-eccentric pins (2.3) are correspondingly matched with the three anti-eccentric pinholes(1.5) on the discharge surface one by one; the three cantilevers (2.2) are respectively contacted and jointed with the three auxiliary die cores (1.3) on the discharge surface of the upper die (1). The utility model has high forming rate, and the cantilevers on the lower die do not easily collapse and deflect.

Description

High cantilevered rail class aluminium section hot-extrusion die

(1) technical field

The utility model relates to a kind of aluminium section hot-extrusion die.Be mainly used in cantilever than the hot extrusion higher and guide rail section that opening is less.Belong to the mold machining technology field.

(2) background technology

Along with the development of World Economics and improving constantly of human living standard, aluminium section bar progressively replaces timber and plastic products with its economy, environmental protection, advantage such as durable, extensively enters people's production and life.But in the production of aluminum window curtain guide track class section bar, because rolling guide opening very narrow (9.5mm), and highly higher (37mm), the cantilever ratio reaches 4 times (as Fig. 7).Therefore shaping difficulty and cantilever place very easily stay in extrusion process, are difficult to realize high yield.This just makes the production cost of this type of aluminium section bar improve widely.Trace it to its cause, be because: the section major part of high cantilevered rail aluminium section bar is placed under the tap hole, and difficult dischargings place such as thin place of wall and wool top is placed under the shunting bridge, cause the shaping rate of material low; The seam chamber is arranged on counterdie charging face, and the service life of mould is short; The patrix core rod is closely unfixing with counterdie seam chamber, and cantilever easily produces beat, stays in extrusion process;

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, the hot-extrusion mold of the high cantilevered rail aluminium section bar that provide that a kind of shaping rate height, counterdie cantilever place are not easy to stay, cantilever is difficult for producing beat in extrusion process.

The purpose of this utility model is achieved in that a kind of high cantilevered rail class aluminium section hot-extrusion die, comprises upper die and lower die,

Described patrix charging face is furnished with tap hole and shunting bridge that is " ten " font symmetric arrangement of four symmetries along abscissa and ordinate direction, patrix is furnished with three supplemental core along abscissa direction word order in the middle of going out charge level, these three supplemental core centers are provided with an anti-cotter pin hole, the patrix of three supplemental core peripheries goes out to move on the charge level bridge location to form goes up the seam district

Described counterdie charging face is not provided with the seam chamber and die cavity directly is set, and described die cavity forms three place's cantilevers on counterdie charging face, and each protruding upwardly is provided with an anti-cotter pin nail center of this three places cantilever,

The anti-cotter pins nail of three of described counterdie goes out three corresponding one by one cooperations in anti-cotter pin hole on the charge level with described patrix respectively, and three place's cantilevers go out the applying that contacts of three supplemental core on the charge level with described patrix respectively.

Compare with existing similar mould, the utlity model has following advantage:

The utility model is by doing four symmetrical tap holes and " ten " font symmetry shunting bridge with patrix along coordinate direction, and from going out charge level bridge location moved, and can improve the stability in the extrusion process like this; The section major part of high cantilevered rail aluminium section bar is covered under the shunting bridge of patrix, only difficult dischargings place such as thin place of wall and wool top are placed on reinforcement feed under the tap hole, can improve the shaping rate that material.Simultaneously in corresponding three supplemental core of three place's cantilevers, the height of three supplemental core is just fitted with counterdie cantilever place, can prevent effectively that counterdie cantilever place from staying, and will shunt bridge and go out to move on the charge level to realize seam, the service life of the mould that can significantly prolong; The seam chamber degree of depth of the utility model counterdie is zero, and the round pin nail that it is 14mm that three diameters are stayed at the indoor corresponding supplemental core of seam place cooperates with patrix, to reach the purpose that prevents cantilever beat in extrusion process.Guaranteed mould stablizing in extrusion process.

(4) description of drawings

Fig. 1 is the front view of the utility model mould.

Fig. 2 is the A-A cut-away view of Fig. 1.

Fig. 3 is a patrix front view of the present utility model.

Fig. 4 is the B-B cut-away view of Fig. 3.

Fig. 5 is the front view of counterdie of the present utility model.

Fig. 6 is the C-C cut-away view of Fig. 5.

The end view drawing of the high cantilevered rail aluminium section bar that Fig. 7 relates to for the utility model.

Among the figure: patrix 1, counterdie 2; Tap hole 1.1, shunting bridge 1.2, supplemental core 1.3, go up seam district 1.4, anti-cotter pin hole 1.5, die cavity 2.1, cantilever 2.2, anti-cotter pin nail 2.3.

(5) specific embodiment

Referring to Fig. 1～2, the high cantilevered rail class aluminium section hot-extrusion die that the utility model relates to is formed by stacking by patrix 1 and counterdie 2 front and back, and is middle with two screws and two pin assemblings (close-fitting).

Referring to Fig. 3～4, described patrix 1 charging face is furnished with tap hole 1.1 and shunting bridge 1.2 that is " ten " font symmetric arrangement of four symmetries along abscissa and ordinate direction, described patrix 1 is furnished with three supplemental core 1.3 along abscissa direction word order in the middle of going out charge level, described supplemental core 1.3 centers are provided with anti-cotter pin hole 1.5, and the patrix 1 of described supplemental core 1.3 peripheries goes out to move on the charge level bridge location to form goes up seam district 1.4.

Referring to Fig. 5～6, described counterdie 2 charging faces are not provided with seam chamber 2.1 and die cavity 2.1 directly are set, and described die cavity 2.1 forms three place's cantilevers 2.2 on counterdie 2 charging faces, and each protruding upwardly is provided with an anti-cotter pin nail 2.3 center of described three place's cantilevers 2.2,

Described three anti-cotter pins nail 2.3 goes out three anti-cotter pin holes, 1.5 corresponding one by one cooperations on the charge level with described patrix 1 respectively, and three place's cantilevers 2.2 go out the applying that contacts of three supplemental core 1.3 on the charge level with described patrix 1 respectively.

Claims

1, a kind of high cantilevered rail class aluminium section hot-extrusion die comprises patrix (1) and counterdie (2), it is characterized in that:

Described patrix (1) charging face is furnished with tap hole (1.1) and shunting bridge (1.2) that is " ten " font symmetric arrangement of four symmetries along abscissa and ordinate direction, patrix (1) is furnished with three supplemental core (1.3) along abscissa direction word order in the middle of going out charge level, this three supplemental core (1.3) center is provided with an anti-cotter pin hole (1.5), the peripheral patrix (1) of three supplemental core (1.3) goes out to move on the charge level bridge location to form goes up seam district (1.4)

Described counterdie (2) charging face is not provided with seam chamber (2.1) and die cavity (2.1) directly is set, described die cavity (2.1) forms three place's cantilevers (2.2) on counterdie (2) charging face, each anti-cotter pin nail (2.3) that is provided with protruding upward of the center of this three places cantilever (2.2)

The anti-cotter pins nails of three of described counterdie (2.3) go out the corresponding one by one cooperation in three anti-cotter pin holes (1.5) on the charge level with described patrix (1) respectively, and three place's cantilevers (2.2) go out the applying that contacts of three supplemental core (1.3) on the charge level with described patrix (1) respectively.