CN203044557U - Upper die for extrusion die with improved structure - Google Patents

Abstract

The utility model discloses an upper die for an extrusion die with an improved structure. A guide plate is on the feeding surface of the upper die, the guide plate is internally provided with a plurality of bridge sites, tap holes are formed among the bridge sites, and the upper end face of each bridge site along the axial direction of the tap holes is lower than the upper plane of the guide plate. According to the upper die for the extrusion die with the improved structure, the bridge sites on the guide plate of the upper die are lower than the guide plate, so that the guide plate and the bridge sites form a countersunk head sunk structure, material can rapidly enter the countersunk head sunk structure space and smoothly enter the tap holes; especially, the upper surfaces of the bridge sites are designed into arc surfaces, and the arc surfaces take a converging effect on material so that the material can rapidly and conveniently enter the tap holes, fast flow of the material is realized, and moulding of a product can be facilitated.

Description

The extrusion die patrix of architecture advances

Technical field

The utility model relates to a kind of extrusion die, particularly a kind of extrusion die patrix 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, enter after material is shunted through the tap hole on the deflector and carry out extrusion modling in the mould, separated by bridge location between the tap hole, common bridge location and deflector axially all is in the same plane along tap hole at present, it enters tap hole to material and produces certain resistance, be unfavorable for that material enters tap hole and outflow fast smoothly, so just influence shaping speed and the moulding quality of product, caused product surface coarse, difficult forming, particularly some sizes are little, baroque product, even also can cause the core rod breakage.

The utility model content

In order to overcome above-mentioned defective, the utility model provides a kind of extrusion die patrix of architecture advances, and the extrusion die of this architecture advances has guide functions with patrix to material, is convenient to material and flows into tap hole fast.

The utility model for the technical scheme that solves its technical problem and adopt is: a kind of extrusion die patrix of architecture advances, described patrix charging face is provided with deflector, be provided with some bridge locations in the deflector, form tap hole between each bridge location, 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 lower than deflector by the position that makes the bridge location on the patrix deflector, make deflector and bridge location form the sagging structure of a countersunk head shape, being convenient to material enters this space fast and enters tap hole smoothly, especially the bridge location upper surface is designed to arc surface, it has the effect of converging to material, be convenient to material and enter tap hole fast, realize flowing fast of material, be conducive to the moulding of product.

Description of drawings

Fig. 1 is the utility model front view;

Fig. 2 be among Fig. 1 B-B to cutaway view.

The specific embodiment

Embodiment: a kind of extrusion die patrix of architecture advances, described patrix charging face is provided with deflector, be provided with some bridge locations 1 in the deflector, form tap hole 2 between each bridge location 1, it is characterized in that: described bridge location 1 highly is lower than the height on plane 4 on the deflector along tap hole 2 axial upper surfaces 3, this just makes and forms a countersunk head shape ledge structure between deflector and the bridge location 1, this structure is convenient to material and is entered in the deflector fast, shunt through tap hole 2 then, guarantee the flowing velocity of material, effectively improved the quality of product extrusion modling.

Described bridge location 1 position centered by the axial upper surface 3 of tap hole 2 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 2 fast, further improve the material flowing velocity, be conducive to formed product, guarantee that the formed product rear surface is smooth.

Claims (2)

1. the extrusion die patrix of an architecture advances, described patrix charging face is provided with deflector, be provided with some bridge locations (1) in the deflector, form tap hole (2) between each bridge location (1), it is characterized in that: described bridge location (1) highly is lower than the height of plane on the deflector (4) along the axial upper surface (3) of tap hole (2).

2. the extrusion die patrix of architecture advances according to claim 1 is characterized in that: described bridge location (1) position centered by the axial upper surface (3) of tap hole (2) is lower than the arc surface of marginal position.

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