CN201052525Y

CN201052525Y - Small circle pipes aluminium alloy section hot extrusion mold

Info

Publication number: CN201052525Y
Application number: CNU2007200391797U
Authority: CN
Inventors: 庞旭宁; 李宏伟; 曾庚清
Original assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Current assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Priority date: 2007-05-30
Filing date: 2007-05-30
Publication date: 2008-04-30
Anticipated expiration: 2017-05-30

Abstract

The utility model relates to an aluminium alloy sections hot extrusion die of the small round pipes, which comprises an upper die (3) and a lower die (9), wherein the wall of the inner pore of the lower die (9) below a lower die weld chamber (7) is embedded with a lower die alloy inside lining (8). The upper portion of the upper die (3) is provided with two diverting pores (1), the middle of the upper portion of the upper die (3) is provided with a parallel bridge location (2), and the two diverting pores (1) are arranged at the left side and the right side of the bridge location (2) separately, and further the lower of the bridge location (2) is connected with an upper die alloy plug (6). The cooperating surface of the bridge location (2) and the lower die weld chamber (7) sinkage form an upper die immersed bridge position (5) which is the upper die weld chamber. The upper die weld chamber and the lower die weld chamber (7) form the integral weld chamber of the die, and the upper die alloy plug (6) of the upper die is inserted into the lower die alloy inside lining (8) of the lower die to form the integral die cavity of the section bars. The utility model is capable of improving the production efficiency of the section bar factory and reducing the production cost of the section bar factory, further the weld quality of the section bar is ensured.

Description

Small round tube aluminium alloy section bar heat extruding mold

Technical field

The utility model relates to a kind of mould, especially relates to a kind of pipe aluminium alloy section bar heat extruding mold.Be mainly used in the hot extrusion of roundlet pipe aluminium alloy extrusions.Belong to the mold machining technology field.

Background technology

Along with the needs of market development, the requirement of small round tube aluminium alloy section bar is increasing, and the requirement of section bar seam line is more and more higher, and section bar wall thickness tolerance is more and more tighter, and require more and more higher die life, and extrusion speed requires more and more faster.But section bar manufacturer often adopts the extruder of little tonnage to squeeze small round tube aluminium alloy section bar at present, and the phenomenon that ubiquity efficient is not high, production cost is high mainly shows:

1, the seam chamber all is arranged on the counterdie, and mould specification is big, and the used material of mould is many, the die cost height;

2, can only realize the extruding of " goes out ", extruding force is big, and production efficiency is low;

3, two above bridge locations are arranged, the seam line of section bar has three or four, and the welding quality line of section bar is not high;

4, upper and lower mould all adopts same material, and the wearability of die working length is relatively poor, and the service life of single mold is short, yields poorly.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and not only can improve section bar factory production efficiency, but also can reduce section bar factory production cost, also can guarantee the small round tube aluminium alloy section bar heat extruding mold of section bar welding quality simultaneously.

The purpose of this utility model is achieved in that a kind of small round tube aluminium alloy section bar heat extruding mold, comprise upper die and lower die, it is characterized in that: described counterdie crown center is concaved with counterdie seam chamber downwards, is inlaid with counterdie alloy lining cover on the counterdie endoporus hole wall of below, counterdie seam chamber; Described patrix top is provided with two tap holes, and patrix top intermediate radial is provided with " one " font bridge location, and two tap holes are divided into the left and right both sides of bridge location, are connected with the patrix alloy under the bridge location and insert; The mating surface place of bridge location and counterdie seam chamber sinks to forming the heavy bridge place of patrix, the zone at the heavy bridge place of this patrix is patrix seam chamber, patrix seam chamber and counterdie seam chamber constitute the whole seam chamber of mould, and the patrix alloy of the patrix part of inserting is inserted the whole die cavity that constitutes section bar in the counterdie alloy lining cover of counterdie.

The utility model adopts the version of " primary and secondary mould ", can be implemented in and assemble two or more " submodule tools " in the die sleeve simultaneously, reach the state of " goes out two " or " go out several ", reduce the product moulding extruding force, improve the purpose of section bar production efficiency thereby reach.

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

1, the seam chamber some be arranged on the counterdie, some is arranged on the patrix, mould specification can dwindle, and can significantly reduce the used material of mould, reduces die cost;

2, can realize the extruding of " goes out two " or " go out several ", reduce extruding force, enhance productivity;

3, adopt the version of " one " word bridge, have only two bridge locations, the seam line of section bar also only has two, is less than three or four of other mould, and the welding quality of section bar improves;

4, adopt the structure of upper and lower mould edge alloy, improve the wearability of die working length, thereby reach the purpose that improves single mold output.

Description of drawings

The top plan view of Fig. 1 the utility model pipe class aluminium alloy section bar heat extruding mold.

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

Fig. 3 is the A-A facade cut-away view of Fig. 1.

When Fig. 4 uses for the utility model mould and the assembling schematic diagram of die sleeve, die-cushion.

Among the figure: the heavy bridge place 5 of tap hole 1, bridge location 2, patrix 3, screw 4, patrix, patrix alloy insert 6, counterdie seam chamber 7, counterdie alloy lining cover 8, counterdie 9, screw 10, mould 11, front flow guiding plate 12, clamping cap 13, die sleeve 14, die-cushion 15, lifting screw hole 18.

The specific embodiment

Referring to Fig. 1 ~ 3, the utility model is a kind of small round tube aluminium alloy section bar heat extruding mold, is combined by patrix 3 and counterdie 9.

Described counterdie 9 crown centers are concaved with counterdie seam chamber 7 downwards, are inlaid with counterdie alloy lining cover 8 on the counterdie 9 endoporus hole walls of 7 belows, counterdie seam chamber;

Described patrix 3 is provided with two tap holes 1, patrix 3 intermediate radial are provided with " one " font bridge location 2, two tap holes 1 are divided into the left and right both sides of bridge location 2, and bridge location is connected with the patrix alloy for 2 times and inserts 6, the patrix alloy insert 6 with bridge location 2 bottoms with screw 4 fastening; Bridge location 2 originates from the patrix lower surface for 2 times to the heavy bridge place 5 of upper surface direction sinking formation patrix with the bridge location at the mating surface place of counterdie seam chamber, and the zone at the heavy bridge place 5 of this patrix is patrix seam chamber.Behind the matched moulds, patrix seam chamber and counterdie seam chamber 7 constitute the whole seam chamber of mould; The patrix alloy of patrix 6 parts of inserting are inserted the whole die cavities that constitute section bars in the counterdie alloy lining cover 8 of counterdie.

Referring to Fig. 4, during assembling, two moulds 11 of the utility model are packed in the die sleeve 14 that is mated, mould 11 tops utilize clamping cap 13 to push down mould, die sleeve 14, mould 11, clamping cap 13 and front flow guiding plate 12 usefulness screws 10 are fastening, and die sleeve 14 bottom pads are gone up die-cushion 15 backs and formed whole.Winch on the section bar extruder by 18 of screw holes of lifting during use.

Claims

1. small round tube aluminium alloy section bar heat extruding mold, comprise patrix (3) and counterdie (9), it is characterized in that: described counterdie (9) crown center is concaved with counterdie seam chamber (7) downwards, is inlaid with counterdie alloy lining cover (8) on counterdie (9) the endoporus hole wall of below, counterdie seam chamber (7); Described patrix (3) top is provided with two tap holes (1), and patrix (3) top intermediate radial is provided with " one " font bridge location (2), and two tap holes (1) are divided into the left and right both sides of bridge location (2), is connected with patrix alloy insert (6) under the bridge location (2); Bridge location (2) sinks to forming the heavy bridge place (5) of patrix with the mating surface place of counterdie seam chamber (7), the zone at the heavy bridge place (5) of this patrix is patrix seam chamber, patrix seam chamber and counterdie seam chamber (7) constitute the whole seam chamber of mould, and the patrix alloy of patrix (6) part of inserting is inserted the whole die cavity that constitutes section bar in the counterdie alloy lining cover (8) of counterdie.

2. a kind of small round tube aluminium alloy section bar heat extruding mold according to claim 1 is characterized in that: described patrix alloy is inserted (6) and bridge location (2) bottom uses screw (4) fastening.