CN219466871U - Multidirectional core-pulling injection mold for complex multi-characteristic thin-wall plastic shell - Google Patents

Abstract

The utility model discloses a complex multi-feature thin-wall plastic shell multidirectional core-pulling injection mold which comprises a fixed mold base, wherein a fixed mold plate with a forming cavity on the upper top surface is arranged on the fixed mold base through a floating plate, a core-pulling mechanism which is arranged on the outer side of the forming cavity and is fixed through a fastening screw is arranged on the fixed mold plate, the effect of achieving two-side demolding along with the movement of a movable mold plate in the mold opening process of the movable mold plate and the fixed mold plate is achieved, one-time demolding is that the movable mold plate moves, the force generated by the fixed mold plate acts on an inclined guide pillar on the core-pulling mechanism, the inclined guide pillar drives a core-pulling sliding block to move in a core-pulling direction along with acting force, the separation of a plastic part and a solidified material is completed when the core-pulling effect is completed, after the movable mold plate moves to a position of once demolding, the top end of a solidified material driven mold plate moves out, and at the same time, the push plate drives the ejector rod to push out the plastic part, injection molding is completed in one period, the multi-azimuth core-pulling efficiency of injection molding processing of a complex workpiece is improved.

Description

Multidirectional core-pulling injection mold for complex multi-characteristic thin-wall plastic shell

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to a multi-directional core-pulling injection mold for a complex multi-feature thin-wall plastic shell.

Background

For complex-structured, thin-walled plastic parts, such as: the SR3 thin-wall plastic shell with multiple complex characteristics such as bulges, buckles, reinforcing ribs and the like is easy to cause buckling deformation of parts due to factors such as filling, cooling, shrinkage, molecular orientation effect and the like in the injection molding production process, meanwhile, the form, the number, the position and the like of the pouring gates have certain influence on the molding use of the parts, the traditional mold for the complex injection molding is complex in structure, the processing of a mold core and a mold cavity has great influence on the injection molding processing of products, the inconvenience of the injection molding operation of the products is increased, and the molding and injection molding efficiency of the products is reduced;

therefore, the utility model provides the complex multi-feature thin-wall plastic shell multi-direction core-pulling injection mold through the multi-direction core-pulling mechanism.

Disclosure of Invention

The utility model aims to provide a complex multi-feature thin-wall plastic shell multidirectional core-pulling injection mold so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a complex multi-feature thin-walled plastic housing multi-way core-pulling injection mold, comprising:

the fixed die comprises a fixed die base, wherein a fixed die plate with a forming cavity on the upper top surface is arranged on the fixed die base through a floating plate, and a core pulling mechanism which is arranged on the outer side of the forming cavity and is fixed through a fastening screw is arranged on the fixed die plate;

the core pulling mechanism comprises an inclined guide post, wherein the inclined guide post is arranged in a sliding groove on the fixed die plate through a core pulling sliding block and slides in the sliding groove along with the pushing of the core pulling sliding block;

the movable mould base, be fixed with the supporting shoe through the bolt on the movable mould base, and the terminal supporting shoe that runs through of bolt is connected with the movable mould board, the bottom of movable mould board is equipped with the shaping core with shaping chamber cooperation shaping work piece, the middle part of supporting shoe is equipped with the ejector pin that runs through shaping core bottom.

Further, a sprue bush is arranged in the positioning ring at the bottom end center of the fixed die base.

Further, cooling water channels are respectively arranged in the forming cavity and the forming core.

Furthermore, the core pulling mechanisms are arranged in a plurality according to the production requirement of the workpiece, and core pulling sliding blocks on the core pulling mechanisms are arranged in the forming cavity.

Further, a reset rod with the tail end fixed with the molding core is arranged on the supporting block, and a reset spring connected with the supporting block is arranged on the reset rod.

Further, a limiting mechanism for receiving and guiding the movable template is arranged at the outer edge of the top end of the fixed template.

The utility model has the following technical effects and advantages:

this multidirectional core-pulling injection mould of complicated multi-feature thin wall plastic casing sets up the core-pulling mechanism of locating the shaping die cavity outside on the fixed die plate, before realizing moulding plastics the fuse-element to the space between shaping die cavity and the shaping core, be in closed state between movable die plate and the fixed die plate, the injection molding machine is with the fuse-element after plasticizing pour into the shaping die cavity through the gating system on the movable die plate into the shaping die cavity, accomplish to filling the mould in the shaping die cavity, cooling water channel on the cooling system cools off the fashioned work piece of plastic part, the movable die plate moves up from the top of fixed die plate through actuating device, there is the effect that reaches both sides drawing of patterns along with the removal of movable die plate in movable die plate and the fixed die plate die sinking process, once drawing of patterns is: the movable template moves, the force generated by the fixed template acts on the inclined guide pillar on the core pulling mechanism, the inclined guide pillar drives the core pulling sliding block to move in the core pulling direction in the sliding groove along with acting force, the separation of a plastic part and a condensed material is completed when the core pulling effect is completed, after the movable template moves to a position for one-time demoulding, the ejector rod starts to perform secondary demoulding, the top end of the condensed material driven template moves out, at the moment, the ejector rod is driven by the ejector plate to push out the plastic part, one-cycle injection molding is completed, then, the movable template and the fixed template are clamped again under the guidance of the guide pillar, reset is performed by the reset spring, and meanwhile, the molding core in the molding cavity is reset, finally, the die assembly of the mold is completed, and the next injection molding product is started, so that when the core pulling mechanism arranged at the outer edge of the molding cavity completes the molding of a workpiece, the multi-azimuth core pulling is improved, and the injection molding efficiency of the complex workpiece is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic structural view of the core pulling mechanism of the present utility model.

In the figure: 1. a fixed mold base; 11. a floating plate; 12. a stationary mold plate; 121. a limiting mechanism; 13. a molding cavity; 14. a fastening screw; 15. a core pulling mechanism; 151. oblique guide posts; 152. a core-pulling sliding block; 16. a sprue bush; 2. a movable mold base; 21. a bolt; 22. a support block; 221. a reset lever; 222. a return spring; 23. a movable template; 24. forming a core; 25. a push rod; 26. and a cooling water passage.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a complex multi-feature thin-wall plastic shell multidirectional core-pulling injection mold as shown in fig. 1-2, which comprises the following steps:

the fixed die comprises a fixed die base 1, wherein a fixed die plate 12 with a forming cavity 13 on the upper top surface is arranged on the fixed die base 1 through a floating plate 11, a sprue bush 16 is arranged in a positioning ring in the center of the bottom end of the fixed die base 1, the sprue bush 16 is used for injecting melt into the forming cavity 13 in cooperation with the forming of a product, and a core pulling mechanism 15 which is arranged on the outer side of the forming cavity 13 on the fixed die base 1 and is fixed through a fastening screw 14 is arranged on the fixed die plate 12;

the core-pulling mechanism 15 comprises an inclined guide pillar 151, wherein the inclined guide pillar 151 is arranged in a chute on the fixed die plate 12 through a core-pulling sliding block 152 and slides in the chute along with the pushing of the core-pulling sliding block 152;

the movable die base 2, be fixed with supporting shoe 22 on the movable die base 2 through bolt 21, and the end of bolt 21 runs through supporting shoe 22 and is connected with movable die plate 23, the bottom of movable die plate 23 is equipped with the shaping core 24 that cooperates shaping work piece with shaping chamber 13, the middle part of supporting shoe 22 is equipped with the ejector pin 25 that runs through the shaping core 24 bottom, the effect of secondary drawing of patterns is reached to the product on the movable die plate 23 through the promotion subassembly of ejector pin 25 braking end, be equipped with the reset lever 221 that the end was fixed with shaping core 24 on the supporting shoe 22, and be equipped with the reset spring 222 that is connected with supporting shoe 22 on the reset lever 221, reset lever 221 cooperates the die sinking between movable die plate 23 and the fixed die plate 12 with reset spring 222, fixed die plate 12 top outer fringe is equipped with and accepts and to the stop gear 121 of movable die plate 23 direction. The limiting mechanism 121 is used for limiting and guiding the moving position of the movable template 23 and the fixed template 12 during the die assembly processing of the product;

cooling water channels 26 are respectively arranged in the forming cavity 13 and the forming core 24, and the cooling water channels 26 are used for cooling and shaping the products in the forming cavity 13 along with the flow of cooling water in the cooling water channels 26 after the products are formed;

the core-pulling mechanism 15 is provided with a plurality of core-pulling sliding blocks 152 on the core-pulling mechanism 15 are arranged in the forming cavity 13 according to the production requirement of the workpiece, and the core-pulling mechanism 15 is positioned at different angles of the inner wall of the forming cavity 13 and is used for core-pulling by matching the inclined guide posts 151 on the core-pulling mechanism 15 with the injection molding production of the product when the forming cavity 13 is matched for producing the product.

The complex multi-feature thin-wall plastic shell multi-way core-pulling injection mold is characterized in that a core-pulling mechanism 15 arranged on the outer side of a molding cavity 13 is arranged on a fixed mold plate 12, the movable mold plate 23 moves downwards to be in a closed state with the fixed mold plate 12 before a melt is injected into a space between the molding cavity 13 and a molding core 24, the injection molding machine injects the plasticized melt into the molding cavity 13 through a pouring system on the movable mold plate 23, the mold filling in the molding cavity 13 is completed, a workpiece molded by a plastic part is cooled by a cooling water channel 26 on a cooling system, the movable mold plate 23 moves upwards from the top end of the fixed mold plate 12 through a driving device, the two-side demolding effect is achieved along with the movement of the movable mold plate 23 in the mold opening process of the movable mold plate 23 and the fixed mold plate 12, and one-time demolding is as follows: the movable template 23 moves, the force generated by the fixed template 12 acts on the inclined guide pillar 151 on the core pulling mechanism 15, the inclined guide pillar 151 is driven by acting force to move the core pulling sliding block 152 in the sliding groove towards the core pulling direction, the separation of a plastic part and a coagulated material is completed when the core pulling effect is completed, after the movable template 23 moves to a primary demoulding position, the ejector rod 25 starts secondary demoulding, the coagulated material moves out of the top end of the driven template 23, and at the moment, the ejector plate at the tail end of the ejector rod 25 drives the ejector rod 25 to push out the plastic part, so that the injection molding of one cycle is completed;

when the next group of products are molded, the movable mold plate 23 and the fixed mold plate 12 are clamped again under the guidance of the limiting mechanism 121, the reset spring 222 resets, meanwhile, the molding core 24 in the molding cavity 13 resets, finally, the die clamping of the mold is finished, the next injection molding product is started, multi-directional core pulling is realized when the workpiece molding is finished through the core pulling mechanism 15 arranged at the outer edge of the molding cavity 13, and the efficiency of injection molding of the workpiece with complex structure is improved.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. A complex multi-feature thin-wall plastic shell multidirectional core-pulling injection mold is characterized by comprising:

the fixed die comprises a fixed die base (1), wherein a fixed die plate (12) with a forming cavity (13) on the upper top surface is arranged on the fixed die base (1) through a floating plate (11), and a core pulling mechanism (15) which is arranged on the outer side of the forming cavity (13) and is fixed through a fastening screw (14) is arranged on the fixed die plate (12);

the core pulling mechanism (15) comprises an inclined guide pillar (151), wherein the inclined guide pillar (151) is arranged in a chute on the fixed template (12) through a core pulling sliding block (152) and is pushed to slide in the chute through the core pulling sliding block (152);

the movable die base (2), be fixed with supporting shoe (22) on movable die base (2) through bolt (21), and the end of bolt (21) runs through supporting shoe (22) and is connected with movable mould board (23), the bottom of movable mould board (23) is equipped with shaping core (24) with shaping chamber (13) cooperation shaping work piece, the middle part of supporting shoe (22) is equipped with ejector pin (25) that run through shaping core (24) bottom.

2. The multi-directional core-pulling injection mold for the complex multi-feature thin-wall plastic shell according to claim 1, wherein the multi-directional core-pulling injection mold comprises the following components: and a sprue bush (16) is arranged in a positioning ring at the bottom center of the fixed die base (1).

3. The multi-directional core-pulling injection mold for the complex multi-feature thin-wall plastic shell according to claim 1, wherein the multi-directional core-pulling injection mold comprises the following components: cooling water channels (26) are respectively arranged in the forming cavity (13) and the forming core (24).

4. The multi-directional core-pulling injection mold for the complex multi-feature thin-wall plastic shell according to claim 1, wherein the multi-directional core-pulling injection mold comprises the following components: the core pulling mechanisms (15) are arranged in a plurality according to the production requirement of the workpiece, and core pulling sliding blocks (152) on the core pulling mechanisms (15) are arranged in the forming cavity (13).

5. The multi-directional core-pulling injection mold for the complex multi-feature thin-wall plastic shell according to claim 1, wherein the multi-directional core-pulling injection mold comprises the following components: the support block (22) is provided with a reset rod (221) with the tail end fixed with the molding core (24), and the reset rod (221) is provided with a reset spring (222) connected with the support block (22).

6. The multi-directional core-pulling injection mold for the complex multi-feature thin-wall plastic shell according to claim 1, wherein the multi-directional core-pulling injection mold comprises the following components: and a limiting mechanism (121) for receiving the movable template (23) and guiding the movable template (23) is arranged at the outer edge of the top end of the fixed template (12).