CN221089864U

CN221089864U - Injection mold linkage core pulling structure

Info

Publication number: CN221089864U
Application number: CN202323001429.6U
Authority: CN
Inventors: 黄政; 蔡金影; 李意林; 郑建伟; 米勇; 刘标
Original assignee: Dongguan Wellmei Mold Mfg Co ltd
Current assignee: Dongguan Wellmei Mold Mfg Co ltd
Priority date: 2023-11-07
Filing date: 2023-11-07
Publication date: 2024-06-07
Anticipated expiration: 2033-11-07

Abstract

The utility model discloses a linkage core-pulling structure of an injection mold, which comprises a mold base, wherein at least two mold cores which are linearly distributed are arranged on the mold base, forming needles penetrate through the mold cores, each forming needle is connected with a sliding block positioned outside the mold cores, a plurality of sliding blocks are connected through a linkage assembly, after injection molding is finished, the mold is opened, and meanwhile, the plurality of sliding blocks are driven to move in a direction away from the mold cores through the linkage assembly, so that the forming needles are driven to be pulled out from the mold cores to be separated from products, a cylinder is not required to be arranged corresponding to one mold core through the arrangement of the linkage assembly, the whole structure of the mold can be simplified, and the size of the mold is reduced.

Description

Injection mold linkage core pulling structure

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to a linkage core pulling structure of an injection mold.

Background

The injection mold is an important part for producing the plastic product, the different shapes and the holes of the plastic product are formed by forming needles at different positions in the acupuncture points, and the forming needles are required to be pulled out from the mold core at the same time of or before the mold opening after the injection molding is finished, so that the product is prevented from being ejected from the mold core;

as disclosed in patent document CN115503194a, a lateral core-pulling mold for a cylinder and a lateral core-pulling method using the same, wherein the technical scheme refers to a process of how to use the cylinder for core-pulling, and is not described herein; based on the technical scheme, a cylinder is required to be arranged corresponding to each acupoint for core pulling, if a plurality of acupoints of a die are relatively large, a plurality of cylinders are required to be matched, so that the die is quite large in size, inconvenient to overhaul and high in manufacturing cost.

Disclosure of utility model

The utility model aims to provide a linkage core pulling structure of an injection mold, which aims to solve the problems in the background technology.

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

The utility model provides an injection mold linkage structure of loosing core, includes the die holder, be equipped with two at least sharp mould benevolence that distribute on the die holder, wear to be equipped with the shaping needle in the mould benevolence, every shaping needle all is connected with the slider that is located outside the mould benevolence, connects through the linkage subassembly between a plurality of sliders.

According to a further technical scheme, the linkage assembly comprises a first cylinder, the first cylinder is connected with the last sliding block, and the sliding blocks are connected through connecting rods.

According to a further technical scheme, a slide way I matched with the sliding block is arranged on the surface of the die holder, a cushion block is arranged in the slide way I and used for supporting the die core, and a connecting rod is arranged in the slide way I and penetrates through the cushion block to be connected with the sliding block.

Further technical scheme still includes limit switch one, limit switch one can offset with the slider.

According to a further technical scheme, the multiple die cores are identical in structure and comprise a first module and a second module which are oppositely arranged, the first module is connected with the second cylinder, the second module is connected with the third cylinder, a second limit switch is arranged corresponding to the first module, and a third limit switch is arranged corresponding to the second module.

According to a further technical scheme, a second slideway is arranged on the surface of the die holder, and the first module and the second module are arranged in the second slideway.

According to a further technical scheme, the first cylinder, the second cylinder and the third cylinder are all connected through the same air passage.

The utility model has the beneficial effects that:

When the injection molding is finished, the die is opened, and the sliding blocks are driven to move in the direction away from the die core through the linkage assembly, so that the forming needle is driven to be pulled out from the die core to be separated from the product, a cylinder is not required to be arranged corresponding to one die core to complete core pulling action through the arrangement of the linkage assembly, the integral structure of the die can be simplified, the size of the die is reduced, the die is particularly suitable for production in the die for simultaneously producing a plurality of products, and the more and more advantages are obvious when one die is used for producing acupoints.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

Fig. 1: three-dimensional structure diagram of the present utility model.

Fig. 2: planar structure diagram of the present utility model.

Fig. 3: internal structure diagram of the present utility model.

Reference numerals: the mold comprises a mold seat 11-mold seat 12-slide way I, a cushion block 13-slide way 14-slide way II, a mold core 2-mold, a mold module 21-module I, a mold module 22-module II, a mold cylinder 23-II, a mold cylinder 24-III, a molding needle 31-shaped needle 32-slide block, a 4-linkage assembly 41-cylinder I, a connecting rod 42-shaped, a limit switch 51-shaped, a limit switch 52-shaped, a limit switch 53-shaped and a 6-air passage.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Please refer to fig. 1-3;

The injection mold disclosed by the utility model has the advantages that the core pulling action is synchronously performed in a linkage core pulling mode, and meanwhile, the mold structure can be simplified; the mold comprises a mold seat 11, wherein at least two mold cores 2 which are linearly distributed are arranged on the mold seat 11, forming needles 31 are penetrated in the mold cores 2, each forming needle 31 is connected with a sliding block 32 positioned outside the mold cores 2, and a plurality of sliding blocks 32 are connected through a linkage assembly 4; in this embodiment, the sliding blocks 32 are also linearly distributed, so that the plurality of sliding blocks 32 can be driven by the linkage assembly 4 to move along the same direction and simultaneously;

When the injection molding is completed, the mold is opened, and meanwhile, the plurality of sliding blocks 32 are driven to move in the direction away from the mold core 2 through the linkage assembly 4, so that the forming needle 31 is driven to be pulled out from the mold core 2 to be separated from a product, a cylinder is not required to be arranged corresponding to one mold core 2 through the arrangement of the linkage assembly 4 to complete the core pulling action, the integral structure of the mold can be simplified, the size of the mold is reduced, the mold is particularly suitable for production in the mold for simultaneously producing a plurality of products, and the more advantages are more and more obvious when one mold is used for producing acupoints.

According to the slight difference of the positions of the different product forming needles 31, referring to fig. 2, the sliding blocks 32 are positioned on the right side of the mold cores 2, if a plurality of mold cores 2 are provided, the rest sliding blocks 32 except the last sliding block 32 are all movable between the adjacent mold cores 2, the last sliding block 32 is connected with the first cylinder 41, and a plurality of sliding blocks 32 are connected through connecting rods 42; the last slide block 32 is pushed to act through the first air cylinder 41, and the rest slide blocks 32 can realize synchronous action under the action of the connecting rod 42, namely, the synchronous action of all the slide blocks 32 can be realized through one power source, so that synchronous core pulling is realized; therefore, the problem of damage caused by asynchronous core pulling during ejection of products can be avoided.

In addition, a first slide way 12 matched with the sliding block 32 is arranged on the surface of the die holder 11, a cushion block 13 is arranged in the first slide way 12 and used for supporting the die core 2, a connecting rod 42 is arranged in the first slide way and penetrates through the cushion block 13 to be connected with the sliding block 32, and the arrangement of the first slide way 12 can limit the deflection of a plurality of sliding blocks 32, so that the forming needle 31 can be accurately inserted into the die core 2.

In this embodiment, the mold further includes a first limit switch 51, where the installation position of the first limit switch 51 may be the distance of the forming needle 31 being completely drawn out from the mold core 2 or more, and the first limit switch 51 in this embodiment corresponds to the last slide block 32, when the first cylinder 41 drives the last slide block 32 to be far away from the mold core 2 to perform the core pulling action, the connecting rod 42 drives the rest slide blocks 32 to synchronously move in the direction far away from the mold core 2 to perform the core pulling action, when the forming needle 31 is completely drawn out from the mold core 2, the last slide block 32 is in contact with the first limit switch 51 to trigger, and at this time, the action of the first cylinder 41 is stopped, that is, all the rest slide blocks 32 synchronously stop the action;

In the prior art, a limit switch I51 is required to be arranged corresponding to no acupoint for limiting the core pulling stroke of the sliding block 32, and the synchronous stop action can be realized by adopting a linkage mode and only setting the limit switch I51, so that the integral structure is simplified, and convenience is provided for subsequent overhaul.

In the embodiment of the utility model, the plurality of mold cores 2 have the same structure, and specifically comprise a first module 21 and a second module 22 which are oppositely arranged, wherein the first module 21 is connected with a second cylinder 23, the second module 22 is connected with a third cylinder 24, a limit switch 52 is arranged corresponding to the first module 21, a limit switch 53 is arranged corresponding to the second module 22, a second slideway 14 is arranged on the surface of the mold base 11, and the first module 21 and the second module 22 are arranged in the second slideway 14; the first module 21 and the second module 22 are driven to move in the second slideway 14 by the second air cylinder 23 and the third air cylinder 24 respectively; when injection molding is needed, the second air cylinder 23 and the third air cylinder 24 respectively drive the first module 21 and the second module 22 to be close to each other for mold clamping, and after injection molding is finished, the first module 21 and the second module 22 are driven by the second air cylinder 23 and the third air cylinder 24 to be far away from each other along the second slideway 14 at the same time of core pulling, so that demolding can be finished; and the second limit switch 52 and the third limit switch 53 limit the travel of the first module 21 and the second module 22 respectively.

It should be noted that, a molding column is fixedly arranged in the mold core 2, the molding column can fix the position of the product during demolding, and the product is taken out after the first module 21 and the second module 22 are separated.

In this embodiment, since the core-pulling device only uses one first cylinder 41 as a power source, and the core-pulling structure set relative to the plurality of cylinders can realize synchronous error-free operation, the first cylinder 41, the second cylinder 23 and the third cylinder 24 are all connected through the same air passage 6, and no air supply is required to be independently performed on the first cylinder 41, so that the overall structure is simplified.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides an injection mold linkage structure of loosing core, includes die holder (11), its characterized in that: the die comprises a die holder (11), and is characterized in that the die holder (11) is provided with at least two linearly distributed die cores (2), forming needles (31) are arranged in the die cores (2) in a penetrating mode, each forming needle (31) is connected with a sliding block (32) located outside the die cores (2), and a plurality of sliding blocks (32) are connected through a linkage assembly (4).

2. The injection mold linkage core pulling structure according to claim 1, wherein: the linkage assembly (4) comprises a first cylinder (41), wherein the first cylinder (41) is connected with the last sliding block (32), and a plurality of sliding blocks (32) are connected through connecting rods (42).

3. The injection mold linkage core pulling structure according to claim 2, wherein: the die comprises a die holder (11), a die core (2) and a connecting rod (42), wherein a first slide way (12) matched with a sliding block (32) is arranged on the surface of the die holder (11), a cushion block (13) is arranged in the first slide way (12) and used for supporting the die core (2), and the connecting rod (42) is arranged in the first slide way (12) and penetrates through the cushion block (13) to be connected with the sliding block (32).

4. The injection mold linkage core pulling structure according to claim 3, wherein: the sliding block type electric motor further comprises a limit switch I (51), and the limit switch I (51) can be abutted against the sliding block (32).

5. The injection mold linkage core pulling structure according to claim 2, wherein: the die comprises a plurality of die cores (2) with the same structure, and particularly comprises a first module (21) and a second module (22) which are oppositely arranged, wherein the first module (21) is connected with a second cylinder (23), the second module (22) is connected with a third cylinder (24), a second limit switch (52) is arranged corresponding to the first module (21), and a third limit switch (53) is arranged corresponding to the second module (22).

6. The injection mold linkage core pulling structure according to claim 5, wherein: the surface of the die holder (11) is provided with a second slideway (14), and the first module (21) and the second module (22) are arranged in the second slideway (14).

7. The injection mold linkage core pulling structure according to claim 4, wherein: the first cylinder (41), the second cylinder (23) and the third cylinder (24) are all connected through the same air passage (6).