CN201271658Y

CN201271658Y - One-mould multi-discharge hot-extrusion mould for aluminum alloy section bar

Info

Publication number: CN201271658Y
Application number: CNU200820039574XU
Authority: CN
Inventors: 杨仙果; 尹胜
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 mold for aluminum alloy tube material section with multi-outlet, in particular to the hot extrusion mold of aluminum alloy tube materialsection. The mold is composed of an upper mold (1) and a lower mold (2), wherein, the feeding end of the lower mold (2) is provided with a welded room (2.1) and a mold chamber (2.2); a discharging end is provided with a discharging hole (2.3), and the feeding end of the upper mold (1) is provided with a decompression counter bore (1.1); the quantity of the shunt holes (1.2) of the upper mold (1) are integral multiple of the mold chambers (2.2) and the shunt holes are distributed on the periphery of the mold chamber (2.2) of the lower mold (2); bridge locations (1.3) of the upper mold (1.5) are all manufactured into a tearshape structure; the discharging surface of the upper mold (1) is provided with a plurality of rectangular-head mold cores (1.5); a supporting boss is arranged between the rectangular-head mold cores and is directly and tightly pasted with the bottom of the welded room (2.1) of the lower mold (2); the rectangular-head mold core (1.5) and the bridge location (1.3) are in smooth transition. The utility model can extrude aluminum alloy tubes with even wall thickness, consistent flow rate and high finished product rate.

Description

One one-die multiple-part aluminium alloy tube hot-extrusion die

(1) technical field

The utility model relates to a kind of aluminium section hot-extrusion die.The hot extrusion of main aluminium alloy pipe.Belong to the mold machining technology field.

(2) background technology

Developing rapidly of World Economics, increasing to the demand of various resources, but a lot of valuable source is limited, non-renewable, how to save energy and reduce the cost just becomes our present sixty-four dollar question.After aluminium alloy was developed as product material, its unique advantage was recognized the world over, and application is more and more widely, had related to all trades and professions now.Wherein aluminium alloy pipe is the maximum kind of aluminium product consumption, and aluminium section bar manufacturer is in order to enhance productivity, to reduce production costs, and all the direction that has more towards a mould develops.But the wall unevenness of article of manufacture is even at present, and the speed of flow velocity differs greatly, the percent defective height is a hard nut to crack of puzzlement aluminium section bar manufacturer development.In actual production,, all do not obtain obvious effects although adopted some measures.If it can not effectively be solved always, just can't realize the doulbe-sides' victory of enterprise's production cost and production efficiency.

(3) summary of the invention

The purpose of this utility model is to overcome a mould and has more that the wall unevenness of pipe mold article of manufacture is even, the problem that speed differs greatly, percent defective is high of flow velocity, provides that a kind of extruded product wall thickness is even, flow velocity is consistent, an one-die multiple-part aluminium alloy tube hot-extrusion die of high finished product rate.

The purpose of this utility model is achieved in that an a kind of one-die multiple-part aluminium alloy tube hot-extrusion die, is formed by the upper die and lower die assembly, it is characterized in that:

Described counterdie feed end is provided with seam chamber and die cavity, and discharge end is processed with discharge opening,

Described patrix feed end is provided with the decompression counterbore, and the tap hole of patrix adopts and becomes the multiple distribution with the die cavity of counterdie, and be arranged in counterdie die cavity around, all bridge locations of patrix are processed into water droplet shape structure; The charge level that goes out of described patrix is provided with a plurality of square toes core rods, is provided with support rim between the described square toes core rod, and this support rim directly and bottom the seam chamber of counterdie is adjacent to, and described square toes core rod and bridge location cross along slipping over.

Compare with existing similar mould, the utility model mould has following characteristics:

1, the patrix tap hole adopts and the number distribution at double of counterdie die cavity, be arranged in the counterdie die cavity around, allow each die cavity look approximate independent, but by three or three above tap holes and bridge location control feed, so just guarantee the stability of square toes core rods, avoided the seam line on section bar surface again.

2, the patrix feed end is provided with the decompression counterbore, and all bridge locations are processed into water droplet shape structure, like this with regard to effectively reduced because of bridge location be provided with many on the pressure that is molded as.

3, patrix is provided with a boss in the middle of the square toes core rod of discharge end, and it directly and bottom the counterdie seam chamber is adjacent to, and its effect is exactly to support patrix, and the strain that allows the patrix bridge location produce is reduced to minimum.Can effectively control the beat of wall thickness like this, strengthen the stability of mould discharging, prolong the service life of mould again.

By above-mentioned improvement, the utility model can make the aluminium alloy pipe that the extruded product wall thickness is even, flow velocity is consistent, yield rate is high.

(4) description of drawings

Fig. 1 is the front view of the utility model one one-die multiple-part aluminium alloy tube hot-extrusion die.

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

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

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

Fig. 5 is the C-C cut-away view of Fig. 3.

Fig. 6 is the front view of the utility model counterdie.

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

Among the figure: patrix 1, counterdie 2, pin 3, screw 4; Decompression counterbore 1.1, tap hole 1.2, bridge location 1.3, support rim 1.4, square toes core rod 1.5; Seam chamber 2.1, die cavity 2.2, discharging opening 2.3.

(5) specific embodiment

Referring to Fig. 1～2, the one-die multiple-part aluminium alloy tube hot-extrusion die that the utility model relates to adopts pin 3 and screw 4 assemblies to form by patrix 1 and counterdie 2.

Referring to Fig. 3～5, described patrix 1 feed end is provided with the decompression counterbore 1.1 of sinking 10mm.The tap hole 1.2 of patrix 1 adopts the 2.2 one-tenth multiples distributions of die cavity with counterdie 2, and be arranged in counterdie 2 die cavity 2.2 around.All bridge locations 1.3 of patrix 1 are processed into water droplet shape structure, as Fig. 5.The charge level that goes out of patrix 1 is provided with a plurality of square toes core rods 1.5, is provided with support rim 1.4 between the described square toes core rod 1.5.The square toes core rod 1.5 of patrix 1 crosses along slipping over bridge location 1.3.

Referring to Fig. 6～7, described counterdie 2 feed ends are provided with seam chamber 2.1, and discharge end is processed with discharge opening 2.3.

Claims

1, an a kind of one-die multiple-part aluminium alloy tube hot-extrusion die is formed by patrix (1) and counterdie (2) assembly, it is characterized in that:

Described counterdie (2) feed end is provided with seam chamber (2.1) and die cavity (2.2), and discharge end is processed with discharge opening (2.3),

Described patrix (1) feed end is provided with decompression counterbore (1.1), the tap hole (1.2) of patrix (1) adopts with the die cavity (2.2) of counterdie (2) and becomes multiple to distribute, and be arranged in counterdie (2) die cavity (2.2) around, all bridge locations (1.3) of patrix (1) are processed into water droplet shape structure; The charge level that goes out of described patrix (1) is provided with a plurality of square toes core rods (1.5), be provided with support rim (1.4) between the described square toes core rod (1.5), this support rim (1.4) directly and bottom the seam chamber (2.1) of counterdie (2) is adjacent to, and described square toes core rod (1.5) crosses along slipping over bridge location (1.3).