CN201120416Y

CN201120416Y - Hot extrusion mold for deep-groove aluminium section bar

Info

Publication number: CN201120416Y
Application number: CNU2007200454103U
Authority: CN
Inventors: 于海丽; 李占胜
Original assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Current assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Priority date: 2007-08-31
Filing date: 2007-08-31
Publication date: 2008-09-24
Anticipated expiration: 2017-08-31

Abstract

The utility model relates to a deep groove aluminum profile hot-extrusion die, comprising an upper die(1) and a lower die(2) which are piled up. Five current divider holes are arranged at the material inlet end of the upper die(1); one of the current divider holes, which is arranged at the center of the material inlet end of the upper die(1), is provided with an intermediate bridge location(1.2)at the middle, dividing the current divider hole into two current divider holes; the rest four current divider holes, which are non-uniform current divider holes(1.3), are arranged at the periphery of the divided current divider hole. The sunken part of the material inlet end of the lower die(2) is a welding chamber(2.1), and a resistance lug boss (2.2) is convexly arranged at the cavity of the welding chamber(2.1), assuming a split ring; a tear strip(2.3)is buckled at the opening of the resistance lug boss (2.2). The deep groove aluminum profile hot-extrusion die is capable of stabilizing the size of the opening of the groove profile and ensuring the quality of the surface of the groove profile.

Description

Dark groove aluminium section hot-extrusion die

Technical field

The utility model relates to a kind of hot-extrusion mold, especially relates to a kind of dark groove aluminium section hot-extrusion die.Be mainly used in the dark groove class of hot extrusion aluminium section bar.Belong to the aluminium section die technical field.

Background technology

Along with the develop rapidly of science and technology, the application of aluminium alloy industry profile more and more widely, the kind of section bar is more and more, and its surface quality and required precision are also more and more higher, this just has higher requirement to Mould design and processing.For all difficult all the time dimension precision requirement that reaches slot opening of the design of the dark groove extruding die for aluminum shaped material of this class, in extrusion process, be prone to the inconsequent phenomenon, the surface is prone to surface quality problems such as seam line, extruding line simultaneously, can not ordinary production, hindered the development of industry profile, this just needs a kind of novel technology to improve this deficiency, to adapt to section bar variation and complicated development.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of energy to stablize the dark groove aluminium section hot-extrusion die of section bar matrix opening size, assurance surface quality.

The purpose of this utility model is achieved in that a kind of dark groove aluminium section hot-extrusion die, is formed by stacking by upper die and lower die,

Described patrix feed end is provided with five tap holes, one of them tap hole is arranged on patrix feed end center, and bridge location in the middle of being provided with in the middle of this tap hole, middle bridge location is separated into the tap hole that is divided into two with this tap hole, all the other four tap holes are arranged in the periphery of the tap hole that is divided into two, and for not waiting tap hole

Described counterdie feed end sunk part is the seam chamber, and protrude and is provided with the choked flow boss at the indoor die cavity of seam place, and described choked flow boss is the opening ring-type, and this choked flow boss openings place is erected with tear strip, and tear strip is provided with two and tears mouth.

The utlity model has following characteristics:

1, by on the counterdie of section bar opening part, tear strip being set, make the hot extruded shapes after the moulding become as a whole, this has just fundamentally guaranteed the precision of section bar opening, and reserved two and torn mouth, behind increase of overaging intensity and dimensionally stable, tear unnecessary part at section bar again off, just obtained high-precision section bar product.

2, the patrix tap hole adopts and does not wait the tap hole design, and the section bar lower end is other three limits charging difficulties relatively, so the tap hole of lower end is big relatively, be charging easily in the middle of making, opened a tap hole that is divided into two at the patrix center, balanced feed has so just fully guaranteed the stability of material.

3, the die cavity place of counterdie has reserved the choked flow boss, has so just slowed down the flow velocity of this part, makes to guarantee the section bar surface quality with middle metal flow equilibrium.

In sum, the utility model is torn mouth by setting and stablize the section bar opening size, according to the shape and the size of the characteristics design tap hole of section bar, and has reserved the choked flow boss and changes the mode of in the past only bringing the adjusting flow velocity by design work.Therefore, the utility model mould can be stablized section bar matrix opening size, guarantee surface quality.

Description of drawings

Fig. 1 is the Facad structure schematic diagram of the dark groove aluminium section hot-extrusion die of the utility model.

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

Fig. 3 is the patrix Facad structure schematic diagram of the dark groove aluminium section hot-extrusion die of the utility model.

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

Fig. 5 is the counterdie Facad structure schematic diagram of the dark groove aluminium section hot-extrusion die of the utility model.

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

Fig. 7 is the I enlarged drawing of Fig. 5.

Fig. 8 has added a torn edges schematic diagram for the section bar that the utility model Mould Machining goes out at opening part.

The section bar that Fig. 9 goes out for the utility model Mould Machining tears schematic diagram behind the opening part redundance off.

Among the figure: patrix 1, counterdie 2, the tap hole 1.1 that is divided into two, middle bridge location 1.2, do not wait tap hole 1.3, core rod 1.4, seam chamber 2.1, choked flow boss 2.2, tear strip 2.3, tear mouthfuls 2.4.

The specific embodiment

Referring to Fig. 1, the utility model is a kind of dark groove aluminium section hot-extrusion die, is formed by stacking by patrix 1 and counterdie 2.

Referring to Fig. 3～4, described patrix 1 feed end is provided with five tap holes, one of them tap hole is arranged on patrix 1 feed end center, and bridge location 1.2 in the middle of being provided with in the middle of this tap hole, middle bridge location 1.2 is separated into the tap hole 1.1 that is divided into two with this tap hole, all the other four peripheries that are arranged in the tap hole 1.1 that is divided into two, and for not waiting tap hole 1.3, described patrix 1 discharge end center is provided with a core rod 1.4.

Referring to Fig. 5～6, described counterdie 2 feed end sunk parts are seam chamber 2.1, protrude and be provided with choked flow boss 2.2 at the indoor die cavity of seam place, described choked flow boss 2.2 is the opening ring-type, these choked flow boss 2.2 opening parts are erected with tear strip 2.3, tear strip 2.3 is provided with two and tears mouth 2.4, as Fig. 7.By section bar such as Fig. 8 that the utility model mould squeezes out, tear off after the unnecessary part as Fig. 9.

Claims

1, a kind of dark groove aluminium section hot-extrusion die is formed by stacking by patrix (1) and counterdie (2), it is characterized in that:

Described patrix (1) feed end is provided with five tap holes, one of them tap hole is arranged on patrix (1) feed end center, and bridge location (1.2) in the middle of being provided with in the middle of this tap hole, middle bridge location (1.2) is separated into the tap hole that is divided into two (1.1) with this tap hole, all the other four tap holes are arranged in the periphery of middle tap hole (1.1) that are divided into two, and for not waiting tap hole (1.3)

Described counterdie (2) feed end sunk part is seam chamber (2.1), and protrude and is provided with choked flow boss (2.2) at the indoor die cavity of its seam place, and described choked flow boss (2.2) is the opening ring-type, and this choked flow boss (2.2) opening part is erected with tear strip (2.3).

2,1 described a kind of dark groove aluminium section hot-extrusion die as requested is characterized in that: described tear strip (2.3) is provided with two and tears mouthful (2.4).