CN201120415Y

CN201120415Y - High-efficiency hot-extrusion mold stephanoporate round tube

Info

Publication number: CN201120415Y
Application number: CNU2007200454090U
Authority: CN
Inventors: 何乐梅; 高宗周
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 high-efficiency perforated circular tube hot-extrusion die, comprising an upper die(1) and a lower die(2). Eight bridge locations(1.6) are arranged at the material inlet end of the upper die(1), developing into nine current divider holes, one of which is a central current divider hole(1.2); the rest eight current divider holes are peripheral current divider holes(1.1); four die cores(1.3) are evenly distributed at the material outlet end of the upper die(1), each developing into a diagonal draw mode(1.5) with the corresponding bridge location(1.6); two resistance lug bosses(2.2) are arranged, protruding upwards, inside the welding chamber(2.3)of the lower die(2); the resistance lug bosses(2.2) are arranged to be in the shape of a cross, dividing the welding chamber(2.3) of the lower die into four separate welding rooms; each welding room is provided with an independent die cavity(2.4) below; the die core of the upper die is arranged to have prearranged offset towards the center of the die cavity(2.4)of the lower die(2). The high-efficiency perforated circular tube hot-extrusion die can not only ensure even material supply to the die cavity of the lower die but also ensure the strength of the die; the high-efficiency perforated circular tube hot-extrusion die can also improve production efficiency and reduce production cost.

Description

High efficiency hot-extrusion mold stephanoporate round tube

Technical field

The utility model relates to a kind of hot-extrusion mold, especially relates to a kind of high efficiency hot-extrusion mold stephanoporate round tube.Be mainly used in hot extrusion pipe shape aluminium section bar.Belong to the aluminium section die technical field.

Background technology

Aluminium has a series of good characteristics, and, corrosion resistance good as intensity, against weather are good, chemical-resistant resistance, electrical and thermal conductivity performance are good.So aluminum pipe is all very big at architectural and industrial consumption.But aluminum pipe mainly adopts the production of single hole mould at present, and production efficiency is low, and cost is higher.And as the mould that adopts a mould porous because of not at the indoor choked flow projection that is provided with of counterdie seam, and entirely on the centerly between patrix core rod and the counterdie die cavity do not have to be offset, cause the aluminum pipe wall unevenness to occur phenomenon such as the discharging speed is inconsistent.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of high efficiency hot-extrusion mold stephanoporate round tube of a mould porous is provided, and makes it to guarantee counterdie die cavity uniform feeding everywhere, can guarantee the intensity of mould again, can also enhance productivity, reduce production costs.

The purpose of this utility model is achieved in that a kind of high efficiency hot-extrusion mold stephanoporate round tube, is formed by stacking by upper die and lower die,

Described patrix feed end is provided with eight bridge locations, form nine tap holes between eight bridge locations, one of them tap hole is arranged on patrix feed end center, be referred to as the center tap hole, all the other eight tap holes are evenly arranged in the periphery of center tap hole, be referred to as peripheral tap hole, each tap hole is expanded towards periphery and is formed tap hole expansion place.The center tap hole is set to guarantee feed, peripheral tap hole is set guarantees in the counterdie die cavity uniform feeding everywhere, can make core rod evenly stressed again by the center; Described patrix discharge end evenly is furnished with four core rods, and each core rod is arranged under the bridge location between per two peripheral tap holes, make it stressed evenly, form oblique pull-shaped formula between each core rod and the corresponding bridge location, to increase the intensity of core rod, the minimizing beat.

Described counterdie feed end sunk part is the seam chamber, the indoor choked flow projection that is provided with protruding upward of seam, described choked flow projection is " ten " font, and the choked flow projection is separated into four independently seam chambers with counterdie seam chamber, and each below, seam chamber is provided with an independent mould cavities.The choked flow projection is set has strengthened intensity between die cavity and the die cavity, both guaranteed the intensity of counterdie, guarantee the uniformity of feed in the die cavity simultaneously.

Described patrix is because of at the HTHP lower stress, produces the bullet shape of changing, and causes the tube wall thickness inequality of producing, so the die cavity center position of the past counterdie of the core rod of patrix is provided with the precompile amount, can guarantee that like this tube wall thickness of producing is even.

The utility model high efficiency hot-extrusion mold stephanoporate round tube can make counterdie die cavity uniform feeding everywhere, can guarantee the intensity of mould again, and has improved production efficiency, reduced production cost.

Description of drawings

Fig. 1 is the Facad structure schematic diagram of the utility model high efficiency hot-extrusion mold stephanoporate round tube.

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

Fig. 3 is the patrix Facad structure schematic diagram of the utility model high efficiency hot-extrusion mold stephanoporate round tube.

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

Fig. 5 is the counterdie Facad structure schematic diagram of the utility model high efficiency hot-extrusion mold stephanoporate round tube.

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

Fig. 7 is for being provided with the schematic diagram of precompile amount between the utility model patrix core rod and the counterdie die cavity.

Among the figure: the empty cutter 1.4 of patrix 1, counterdie 2, peripheral tap hole 1.1, center tap hole 1.2, core rod 1.3, patrix, tiltedly draw 1.5, bridge location 1.6, tap hole expansion place 1.7, discharge opening 2.1, choked flow projection 2.2, seam chamber 2.3, die cavity 2.4, pipe section bar wall thickness T, precompile amount δ.

The specific embodiment

Referring to Fig. 1, the utility model is a kind of high efficiency hot-extrusion mold stephanoporate round tube, is formed by stacking by patrix 1 and counterdie 2.

Referring to Fig. 3～4, described patrix 1 feed end is provided with eight bridge locations 1.6, form nine tap holes between eight bridge locations 1.6, each tap hole is expanded towards periphery and is formed tap hole expansion place 1.7, one of them tap hole is arranged on patrix 1 feed end center, be referred to as center tap hole 1.2, all the other eight tap holes are evenly arranged in the periphery of center tap hole 1.2, are referred to as peripheral tap hole 1.1; Described patrix 1 discharge end evenly is furnished with four core rods 1.3, and each core rod 1.3 is arranged on the bridge location 1.6 times between per two peripheral tap holes 1.1, forms 1.5 forms of tiltedly drawing between each core rod 1.3 and the corresponding bridge location 1.6.

Referring to Fig. 5～6, described counterdie 2 feed end sunk parts are seam chamber 2.3, the choked flow projection 2.2 that is provided with protruding upward in the seam chamber 2.3, described choked flow projection 2.2 is " ten " font, choked flow projection 2.2 is separated into four independently seam chambers with counterdie seam chamber 2.3, and each below, seam chamber is provided with an independent mould cavities 2.4.

Referring to Fig. 7, the core rod 1.3 of described patrix 1 is provided with precompile amount δ toward die cavity 2.4 center positions of counterdie 2.Precompile amount δ=0.1mm.

Claims

1, a kind of high efficiency hot-extrusion mold stephanoporate round tube is formed by stacking by patrix (1) and counterdie (2), it is characterized in that:

Described patrix (1) feed end is provided with eight bridge locations (1.6), form nine tap holes between eight bridge locations (1.6), each tap hole is expanded towards periphery and is formed tap hole expansion place (1.7), one of them tap hole is arranged on patrix (1) feed end center, be referred to as center tap hole (1.2), all the other eight tap holes are evenly arranged in the periphery of center tap hole (1.2), are referred to as peripheral tap hole (1.1); Described patrix (1) discharge end evenly is furnished with four core rods (1.3), and each core rod (1.3) is arranged under the bridge location (1.6) between per two peripheral tap holes (1.1), and form between each core rod (1.3) and the corresponding bridge location (1.6) and tiltedly draw (1.5) form,

Described counterdie (2) feed end sunk part is seam chamber (2.3), the choked flow projection (2.2) that is provided with protruding upward in the seam chamber (2.3), described choked flow projection (2.2) is " ten " font, choked flow projection (2.2) is separated into four independently seam chambers with counterdie seam chamber (2.3), each below, seam chamber is provided with an independent mould cavities (2.4)

The core rod (1.3) of described patrix (1) is provided with the precompile amount toward die cavity (2.4) center position of counterdie (2).