CN101664770A

CN101664770A - Multi-output thin-wall small circular tube type aluminium profile hot extrusion mould

Info

Publication number: CN101664770A
Application number: CN200910034862A
Authority: CN
Inventors: 高宗周; 曾庚清
Original assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Current assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Priority date: 2009-08-26
Filing date: 2009-08-26
Publication date: 2010-03-10

Abstract

The invention relates to a multi-output thin-wall small circular tube type aluminium profile hot extrusion mould which is formed by superimposing an upper mould (1) and a lower mould (2) from front toback and is characterized in that three master shunting bridges (13) and three independent feed zones are arranged at the feed end of the upper mould (1), each feed zone is provided with a shunting bridge (14) and two shunting holes (12), the shunting bridge (14) is provided with a reverse bridge zone (15), three mould cores (11) are arranged at the discharge end of the upper mould (1) and correspond to the three shunting bridges (14), the three mould cores (11) are uniformly arranged on the same circumference, and the discharge surfaces of the three shunting bridges (14) sink to form three upper soldering zones (16); the lower mould (2) is provided with three mould cavities (21), the three mould cavities (21) and the three mould cores (11) of the upper mould are in one-to-one correspondence, and no soldering chamber is arranged at the feed end of the lower mould (2). The invention greatly improves the production efficiency and can effectively avoid the product defects including walldeviation, elastic deformation and the like. The extruded profile products have good quality.

Description

One multi-output thin-wall small circular tube type aluminium profile hot extrusion mould

(1) technical field

The present invention relates to a kind of hot-extrusion mold, especially relate to a kind of hot-extrusion mold that once squeezes out many products.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 is with its economy, environmental protection, and advantage such as durable progressively replaces timber and plastic products, extensively enters people's production and life.Yet some aluminium section bar because the thick spy of the little spy of the especially big spy of section self is thin etc., is difficult to realize ordinary production.The little pipe of thin-walled that tube and pipe of aluminium alloy, especially wall thickness 0.8mm are following as shown in Figure 1, owing to its core rod is not arranged ringwise, makes the suffered extruding force of each core rod inhomogeneous, can not effectively guarantee the stable of core rod; Its counterdie has the seam chamber, has reduced the rigidity of counterdie.In process of production, because extruding force is too high, singly going out substantially can't ordinary production; Twoly go out or have more and very easily cause product defectses such as wall thickness beat, strain, can't meet the quality requirement of product.

(3) summary of the invention

The objective of the invention is to overcome above-mentioned deficiency, a kind of production efficiency height is provided, can effectively guarantees the multi-output thin-wall small circular tube type aluminium profile hot extrusion mould of stablizing, avoid product defectses such as inclined to one side wall and strain of core rod.

The present invention solves the technical scheme that its technical barrier adopts: an a kind of multi-output thin-wall small circular tube type aluminium profile hot extrusion mould, be formed by stacking by before and after the upper die and lower die, the patrix feed end is provided with independently feed zone of three main shunting bridges and three, each feed zone is provided with a shunting bridge and two tap holes, the shunting bridge is provided with the district of falling the bridge, corresponding to described three shunting bridges, the patrix discharge end is provided with three core rods, three core rods are evenly arranged on the same circumference, and the seam districts are gone up in three of the charge level sinking formation that go out of three shunting bridges; Described counterdie is provided with three die cavities, and three die cavities are corresponding one by one with three core rods of patrix, and the counterdie feed end is not established the seam chamber.

The invention has the beneficial effects as follows:

The present invention earlier will be for the aluminium shunting through the shunting bridge in extrusion process, after each tap hole is filled and finished, independently goes up at three and to finish seam in the seam district respectively, via three die cavities outflows of counterdie, once extrudes three products again, has improved production efficiency greatly; Adopt the core rod that is circular layout simultaneously, make the suffered extruding force of each core rod even, and each core rod all has the shunting bridge to involve from inside and outside both direction, can effectively guarantee the stable of core rod, the suitable thickening of counterdie and do not have seam chamber design, also guarantee the rigidity of counterdie to a certain extent, effectively avoided inclined to one side wall, product defectses such as strain.

(4) description of drawings

Fig. 1 is that the diameter that the present invention relates to is less than the sectional drawing of 18mm wall thickness less than the aluminum alloy round of 0.8mm.

Fig. 2 is the Facad structure schematic diagram of the present invention's one multi-output thin-wall small circular tube type aluminium profile hot extrusion mould.

Fig. 3 is the A-A cut-away view of Fig. 2.

Fig. 4 is a patrix Facad structure schematic diagram of the present invention.

Fig. 5 is the B-B cut-away view of Fig. 4.

Fig. 6 is a counterdie Facad structure schematic diagram of the present invention.

Fig. 7 is the C-C cut-away view of Fig. 6.

Reference numeral among the figure:

Patrix 1, core rod 11, tap hole 12, master shunt bridge 13, shunting bridge 14, the district of falling the bridge 15, go up seam district 16; Counterdie 2, die cavity 21.

(5) specific embodiment

Referring to Fig. 2 and Fig. 3, Fig. 2 is the Facad structure schematic diagram of the present invention's one multi-output thin-wall small circular tube type aluminium profile hot extrusion mould.Fig. 3 is the A-A cut-away view of Fig. 2.By Fig. 2 and Fig. 3 as can be seen, the present invention's one multi-output thin-wall small circular tube type aluminium profile hot extrusion mould is formed by stacking by patrix 1 and counterdie 2 front and back.Assemble (close-fitting) with two screws and two pins between patrix 1 and the counterdie 2.

Referring to Fig. 4 and Fig. 5, Fig. 4 is a patrix Facad structure schematic diagram of the present invention.Fig. 5 is the B-B cut-away view of Fig. 4.By Fig. 4 and Fig. 5 as can be seen, patrix 1 of the present invention, patrix 1 feed end is provided with independently feed zone of three main shunting bridges 13 and three, each feed zone is provided with a shunting bridge 14 and two tap holes 12, shunting bridge 14 is provided with the district of falling the bridge 15, and corresponding to described three shunting bridges 14, patrix 1 discharge end is provided with three core rods 11, three core rods 11 are evenly arranged on the same circumference, and seam districts 16 are gone up in three of the charge level sinking formation that go out of three shunting bridges 14.

Referring to Fig. 6 and Fig. 7, Fig. 6 is a counterdie Facad structure schematic diagram of the present invention.Fig. 7 is the C-C cut-away view of Fig. 6.By Fig. 6 and Fig. 7 as can be seen, it is corresponding one by one with three core rods 11 of patrix that counterdie 2 of the present invention, counterdie 2 are provided with 21, three die cavities 21 of three die cavities, counterdie 2 done thick, and counterdie 2 feed ends are not established the seam chamber.

Claims

1, an a kind of multi-output thin-wall small circular tube type aluminium profile hot extrusion mould, by being formed by stacking before and after patrix (1) and the counterdie (2), it is characterized in that: patrix (1) feed end is provided with independently feed zone of three main shunting bridges (13) and three, each feed zone is provided with a shunting bridge (14) and two tap holes (12), shunting bridge (14) is provided with the district of falling the bridge (15), corresponding to described three shunting bridges (14), patrix (1) discharge end is provided with three core rods (11), three core rods (11) are evenly arranged on the same circumference, and seam districts (16) are gone up in three of the charge level sinking formation that go out of three shunting bridges (14); Described counterdie (2) is provided with three die cavities (21), and three die cavities (21) are corresponding one by one with three core rods (11) of patrix, and counterdie (2) feed end is not established the seam chamber.