CN202480358U

CN202480358U - Extrusion die for die orifice plate with inlaid sealed water-cooling troughs

Info

Publication number: CN202480358U
Application number: CN2012201034020U
Authority: CN
Inventors: 张元祥; 段秀军; 陆欢
Original assignee: HUANGSHI JIARUI PLASTIC MOULD CO Ltd
Current assignee: HUANGSHI JIARUI PLASTIC MOULD CO Ltd
Priority date: 2012-03-19
Filing date: 2012-03-19
Publication date: 2012-10-10
Anticipated expiration: 2022-03-19

Abstract

The utility model relates to improvement of plastic profile extrusion dies, in particular to an extrusion die for a die orifice plate with inlaid sealed water-cooling troughs. The extrusion die comprises a die body, a support plate, a confluence plate, a die orifice plate B and a die orifice plate A, cores and sprue spreaders are respectively mounted in the die body, the support plate, a flow channel of the confluence plate and cavities of the die orifice plate B and the die orifice plate A, two water-cooling troughs are arranged on an upper plate surface and a lower plate surface of the die orifice plate A positioned on the outer side of the corresponding cavity respectively, each water-cooling trough is provided with a water outlet and a water inlet, particularly, the trough section of each water-cooling trough is a T-shaped structure, the T-shaped structure of each water-cooling trough comprises a T-shaped groove and a closure plate, the closure plate is mounted in a concave groove of the T-shaped groove in an inlaid manner, and the T-shaped groove is sealed. The extrusion die solves the problems of an existing extrusion die for a die orifice plate with water-cooling troughs that the die orifice plate easily deforms, the sealing performance of the water-cooling troughs is poor, the quality of plastic profiles is unstable and the die manufacturing cost is high, and the extrusion die is mainly used for improving the existing extrusion die for the die orifice plate with the water-cooling troughs.

Description

Inlay sealing water-cooling groove die plate extrusion die

The (1) technical field: the utility model relates to the improvement of plastic profiled bar extrusion die, is a kind of sealing water-cooling groove die plate extrusion die of inlaying.

The (2) background technology: the case-hardening typing of plastic irregular profile is to be accomplished by the die orifice on the extrusion die water cooled mo(u)ld oralia; Die orifice periphery on the water cooled mo(u)ld oralia is provided with bosh, and the bosh on the die plate is that grinding constitutes after adopting the shrouding welded seal again by the groove that processes on the plate face; The problem that prior art water cooled mo(u)ld oralia extrusion die exists is: the high temperature that water cooled mo(u)ld oralia groove welded seal is produced causes the distortion of die plate easily; Seepage also appears in the seal-weld of groove easily; The sealing property of die plate water-cooling groove is relatively poor; The cooling and shaping effect of die plate is unstable, and the quality of plastic irregular profile is unsecured, and the cost of groove seal-weld grinding is high.

The (3) summary of the invention: the purpose of the utility model is exactly to solve the poor sealing performance of the existing die plate easy deformation of existing water-cooling groove die plate extrusion die, water-cooling groove, the quality instability and the high problem of Mould Machining cost of plastic irregular profile, and a kind of sealing water-cooling groove die plate extrusion die of inlaying is provided.

The concrete scheme of the utility model is: a kind of sealing water-cooling groove die plate extrusion die of inlaying; It has die body; Be provided with runner in the die body, the top of die body adopts screw to be separately installed with supporting plate, cylinder manifold, B die plate and A die plate, is equipped with runner on supporting plate and the cylinder manifold; Be equipped with die cavity on B die plate and the A die plate, be separately installed with core in the runner of die body, supporting plate, cylinder manifold and in the die cavity of B die plate, A die plate and divide flow cone; Be respectively equipped with the twice water-cooling groove on the upper and lower plates face outside the A die plate is positioned at die cavity, the per pass water-cooling groove is equipped with delivery port and water inlet, and pipe joint all is installed on each delivery port and the water inlet; It is characterized in that: the slot cross-section of described water-cooling groove is to be T type structure, and the T type structure of water-cooling groove is made up of T type groove and shrouding, and the upper end of T type groove is provided with the heavy stand groove, and shrouding is to inlay in the heavy stand groove that is installed in T type groove, and constitutes the sealing of T type groove.

The described water-cooling groove of the utility model is to be open loop structure, and delivery port and water inlet are two ends that are located at the water-cooling groove open loop structure respectively.

The described T type of the utility model groove is to be open loop structure.

The described shrouding of the utility model is to be open loop structure.

The utility model is compared with existing water-cooling groove die plate extrusion die; The utility model is to be provided with the heavy stand groove in the upper end of water-cooling groove slot cross-section T type groove; Utilize inlaying of open loop structure shrouding that the sealing that constitutes T type groove is installed, solved the easy seepage of die plate high temperature deformation, seal-weld that the original structure welded seal is produced, die plate cooling and shaping weak effect and plastic irregular profile quality problem of unstable; The utility model is simple in structure, good seal performance, die plate cooling effect stable and cheap; The utility model preferably resolves the poor sealing performance of the existing die plate easy deformation of existing water-cooling groove die plate extrusion die, water-cooling groove, the quality instability and the high problem of Mould Machining cost of plastic irregular profile.

The (4) description of drawings:

Fig. 1: the utility model structural front view;

Fig. 2: the utility model structure vertical view;

Fig. 3: A die plate structural front view;

Fig. 4: A die plate structure vertical view;

Fig. 5: water-cooling groove cross section partial enlarged view;

Fig. 6: T type groove structure front view;

Among the figure: 1-A die plate, 2-die cavity, 3-core, 4-pipe joint, 5-B die plate, 6-cylinder manifold; 7-supporting plate, 8-minute flow cone, 9-die body, 10-runner, 11-water-cooling groove; 12-delivery port, 13-water inlet, 14-T type groove, 15-shrouding, 16-heavy stand groove.

The (5) specific embodiment:

Embodiment: (seeing Fig. 1 for details) a kind of sealing water-cooling groove die plate extrusion die of inlaying; It has die body 9; Be provided with runner 10 in the die body 9; The top of die body 9 adopts screw to be separately installed with supporting plate 7, cylinder manifold 6, B die plate 5 and A die plate 1; Be equipped with runner 10 on supporting plate 7 and the cylinder manifold 6, be equipped with die cavity 2 (seeing Fig. 2 for details) on B die plate 5 and the A die plate 1, be separately installed with core 3 in the runner 10 of die body 9, supporting plate 7, cylinder manifold 6 and in the die cavity 2 of B die plate 5, A die plate 1 and divide flow cone 8; Be positioned in A die plate 1 on the upper and lower plates face in die cavity 2 outsides and be respectively equipped with twice water-cooling groove 11 (seeing Fig. 3, Fig. 4 for details), per pass water-cooling groove 11 is equipped with delivery port 12 and water inlet 13, on each delivery port 12 and the water inlet 13 pipe joint 4 is installed all; Particularly: the slot cross-section of described water-cooling groove 11 is to be T type structure (seeing Fig. 5 for details); The T type structure of water-cooling groove 11 is made up of T type groove 14 and shrouding 15; The upper end of T type groove 14 is provided with heavy stand groove 16 (seeing Fig. 6 for details); Shrouding 15 is to inlay in the heavy stand groove 16 that is installed in T type groove 14, and formation T type groove 14

Sealing.

The described water-cooling groove 11 of present embodiment is to be on the upper and lower plates face that open loop structure is arranged in A die plate 1 die cavity 2 outsides (seeing Fig. 4 for details), and delivery port 12 and water inlet 13 are the ends that are located at water-cooling groove 11 open loop structures respectively.

The described T type of present embodiment groove 14 is to be open loop structure.

The described shrouding 15 of present embodiment is to be open loop structure.

Claims

1. inlay sealing water-cooling groove die plate extrusion die for one kind; It has die body; Be provided with runner in the die body, the top of die body adopts screw to be separately installed with supporting plate, cylinder manifold, B die plate and A die plate, is equipped with runner on supporting plate and the cylinder manifold; Be equipped with die cavity on B die plate and the A die plate, be separately installed with core in the runner of die body, supporting plate, cylinder manifold and in the die cavity of B die plate, A die plate and divide flow cone; Be respectively equipped with the twice water-cooling groove on the upper and lower plates face outside the A die plate is positioned at die cavity, the per pass water-cooling groove is equipped with delivery port and water inlet, and pipe joint all is installed on each delivery port and the water inlet; It is characterized in that: the slot cross-section of described water-cooling groove is to be T type structure, and the T type structure of water-cooling groove is made up of T type groove and shrouding, and the upper end of T type groove is provided with the heavy stand groove, and shrouding is to inlay in the heavy stand groove that is installed in T type groove, and constitutes the sealing of T type groove.

2. a kind of sealing water-cooling groove die plate extrusion die of inlaying according to claim 1, it is characterized in that: described water-cooling groove is to be open loop structure, delivery port and water inlet are two ends that are located at the water-cooling groove open loop structure respectively.