CN203044558U

CN203044558U - Extrusion die with improved structure

Info

Publication number: CN203044558U
Application number: CN 201220641370
Authority: CN
Inventors: 涂季冰; 吕传锋
Original assignee: Giant Light Metal Technology Kunshan Co Ltd
Current assignee: Dingmg New Material Technology Co ltd
Priority date: 2012-11-28
Filing date: 2012-11-28
Publication date: 2013-07-10
Anticipated expiration: 2022-11-28

Abstract

The utility model discloses an extrusion die with an improved structure. The extrusion die with the improved structure comprises an upper die and a lower die which are fixedly connected, wherein a guide plate is arranged at the upper end of the upper die, bridge sites are arranged in the guide plate, chamfer structures are respectively arranged on the edges of each bridge site, tap holes are formed among the bridge sites, a core head is arranged below the guide plate of the upper die, a seaming chamber, a moulding hole and a discharging hole which are communicated are sequentially formed in the lower die from top to bottom, the seaming chamber is communicated with the tap holes in the upper die, the core head of the upper die is inserted and arranged in the moulding hole in the lower die, the seaming chamber of the lower die is composed of at least two stages of sub seaming chambers, and all stages of sub seaming chambers are arranged in a stair-step shape with diameter being gradually reduced. According to the extrusion die with the improved structure, the edges of the bridge sites of the upper die are designed into chamfer structures, a guiding effect on material entering the tap holes is realized, rapid tapping of the material is realized, sufficient material in the moulding hole is guaranteed, the material after being tapped enters the seaming chamber and is gradually moulded in multiple stages, overall strength of the moulded product is high, surface of the moulded product is smooth, a moulding effect is good, and the extrusion die can be hardly damaged.

Description

The extrusion die of architecture advances

Technical field

The utility model relates to a kind of extrusion die, particularly a kind of extrusion die of architecture advances.

Background technology

Various product mouldings are all realized by extrusion die, general extrusion die is made up of upper die and lower die, patrix is provided with deflector and core print, material enters in the mould after shunting through the tap hole on the deflector, flow into the seam chamber then, enter conflux behind the seam chamber, and then enter in the molding space that is formed by core print and moulding hole and carry out extrusion modling, finally discharge from discharge opening, common tap hole is straight hole at present, and material is difficult for entering, shunting effect is bad, and the seam chamber all is one deck structure, and material directly enters moulding in the moulding hole through a conflux, and it is unfavorable for forming materials, the material internal short texture of moulding, so just influence shaping speed and the moulding quality of product, caused product surface coarse, difficult forming, shaped article intensity is low.

The utility model content

In order to overcome above-mentioned defective, the utility model provides a kind of extrusion die of architecture advances, and the structure of extrusion of this architecture advances is simple, and material shunting speed in mould is fast, and raw material are through multistage moulding, intensity height after the moulding, smooth surface.

The utility model for the technical scheme that solves its technical problem and adopt is: a kind of extrusion die of architecture advances, comprise fixedly connected upper die and lower die, the patrix upper end is provided with deflector, be provided with bridge location in the deflector, and be equipped with chamfering structure on the seamed edge of bridge location, form tap hole between the bridge location, the deflector below of patrix is provided with core print, counterdie is provided with the seam chamber of connection from top to bottom successively, moulding hole and discharge opening, described seam chamber is communicated with the tap hole of patrix, the core print of patrix is inserted in the moulding hole of counterdie, and the seam chamber of described counterdie is made up of at least two fraction seam chambers, and each fraction seam chamber is the stepped ordered state of tapered diameter.

As further improvement of the utility model, described seam chamber is made up of three fraction seam chambers.

As further improvement of the utility model, described two fraction seam chamber cross sectional shapes near the moulding hole are corresponding with moulding hole cross sectional shape.

As further improvement of the utility model, each seamed edge of described bridge location is equipped with the rounding structure.

As further improvement of the utility model, described bridge location is lower than the height on plane on the deflector along the axial upper surface height of tap hole.

As further improvement of the utility model, described bridge location position centered by the axial upper surface of tap hole is lower than the arc surface of marginal position.

The beneficial effects of the utility model are: the utility model is designed to chamfering structure with the bridge location seamed edge of patrix, the material that enters tap hole had guide functions, realized the quick shunting of material, guarantee the abundance of material in the moulding hole, after the material after the shunting enters the seam chamber, through multistage progressively moulding, its bulk strength height, the shaped article smooth surface, good forming effect, mould is not fragile.

Description of drawings

Fig. 1 is the utility model front view;

Fig. 2 be among Fig. 1 A-A to cutaway view;

Fig. 3 is the patrix front view;

Fig. 4 is that patrix B-B is to cutaway view Amplified image;

Fig. 5 is the counterdie front view.

The specific embodiment

Embodiment: a kind of extrusion die of architecture advances, comprise fixedly connected patrix 1 and counterdie 2, patrix 1 upper end is provided with deflector, be provided with bridge location 3 in the deflector, and be equipped with chamfering structure on the seamed edge of bridge location 3, form tap hole 4 between the bridge location 3, the deflector below of patrix 1 is provided with core print 5, counterdie 2 is provided with the seam chamber 6 of connection from top to bottom successively, moulding hole 7 and discharge opening 8, described seam chamber 6 is communicated with the tap hole 4 of patrix 1, the core print 5 of patrix 1 is inserted in the moulding hole 7 of counterdie 2, the seam chamber 6 of described counterdie 2 is made up of at least two fraction seam chambers 6, and each fraction seam chamber 6 is the stepped ordered state of tapered diameter, material enters from patrix 1 upper end, flow into seam chamber 6 through tap hole 4, gather through seam chamber 6 and to dwindle the circulation diameter and enter 7 moulding of moulding hole again, product after the moulding is discharged from discharging opening, be provided with chamfering structure owing to form bridge location 3 seamed edges of tap hole 4, this just makes and forms this structure of guide frame that tilts in the import of tap hole 4 and exit is that the material that enters seam chamber 6 shrinks gradually and enters moulding hole 7, be convenient to formed product, improved product surface fineness and its internal intensity.

Described seam chamber 6 is made up of three fraction seam chambers 6.

Described two fraction seam chambers, 6 cross sectional shapes near moulding hole 7 are corresponding with moulding hole 7 cross sectional shapes, make material is progressively carried out preformed, guarantee its molding effect, and product strength.

Described bridge location 3 each seamed edge are equipped with the rounding structure, form arc surface, smooth surface, and the material of being more convenient for flows, and at utmost reduces the resistance to material.

Described bridge location 3 is lower than the height on plane on the deflector along tap hole 4 axial upper surface height, this just makes and forms a countersunk head shape ledge structure between deflector and the bridge location 3, this structure is convenient to material and is entered in the deflector fast, shunt through tap hole 4 then, guarantee the flowing velocity of material, effectively improved the quality of product extrusion modling.

Described bridge location 3 position centered by the axial upper surface of tap hole 4 is lower than the arc surface of marginal position, it has the effect of converging to material, make material on smooth arc surface, flow in the tap hole 4 fast, further improve the material flowing velocity, be conducive to formed product, guarantee that the formed product rear surface is smooth.

Claims

1. the extrusion die of an architecture advances, it is characterized in that: comprise fixedly connected patrix (1) and counterdie (2), patrix (1) upper end is provided with deflector, be provided with bridge location (3) in the deflector, and be equipped with chamfering structure on the seamed edge of bridge location (3), form tap hole (4) between the bridge location (3), the deflector below of patrix (1) is provided with core print (5), counterdie (2) is provided with the seam chamber (6) of connection from top to bottom successively, moulding hole (7) and discharge opening (8), described seam chamber (6) is communicated with the tap hole (4) of patrix (1), the core print (5) of patrix (1) is inserted in the moulding hole (7) of counterdie (2), the seam chamber (6) of described counterdie (2) is made up of at least two fraction seam chambers (6), and each fraction seam chamber (6) is the stepped ordered state of tapered diameter.

2. the extrusion die of architecture advances according to claim 1, it is characterized in that: described seam chamber (6) is made up of three fraction seam chambers (6).

3. the extrusion die of architecture advances according to claim 2 is characterized in that: described two fraction seam chamber (6) cross sectional shapes near moulding hole (7) are corresponding with moulding hole (7) cross sectional shape.

4. the extrusion die of architecture advances according to claim 1, it is characterized in that: each seamed edge of described bridge location (3) is equipped with the rounding structure.

5. the extrusion die of architecture advances according to claim 1, it is characterized in that: described bridge location (3) is lower than the height on plane on the deflector along the axial upper surface height of tap hole (4).

6. the extrusion die of architecture advances according to claim 5 is characterized in that: described bridge location (3) position centered by the axial upper surface of tap hole (4) is lower than the arc surface of marginal position.