CN209999620U - type automobile injection mold's slider thimble ejection mechanism - Google Patents

Abstract

The utility model discloses an kind of car injection mold's slider thimble ejection mechanism, including the fixed die plate, the guide pillar, the movable mould board, the movable mould base, the push pedal, release the fixed plate, the fixed block, the push rod, thimble and slider, the movable mould board, the die cavity, guide pillar, wherein guide pillar fixed mounting is on the movable mould board, the side of movable mould board is provided with the movable mould backing plate, movable mould backing plate fixed mounting is on the movable mould base, be provided with the push pedal between two movable mould bases, the side of push pedal is provided with the release fixed plate the utility model discloses a kind of car injection mold's slider thimble ejection mechanism, the utility model discloses a set up the push pedal, thimble and slider, play the effect with the quick release of the inside fashioned material of mould, especially be connected with the slider in the side of thimble, let the slider more with the contact surface of the inside fashioned raw materials of mould, easy drawing of patterns, it is little to.

Description

A sliding block ejector pin ejection mechanism of automobile injection mold

technical field

The utility model relates to the technical field of automobile injection moulds, in particular to a sliding block ejector pin ejection mechanism of the automobile injection moulds.

Background technique

With the continuous development of society and the rapid progress of science and technology, the scope and quantity of plastic products are also increasing, and they have a wide range of applications. In the process of injection molding, more and more attention is paid to molds, and people's lives are becoming more and more important. It is increasingly inseparable from the use of injection molding parts, especially the use of automotive injection molding parts. Injection molding, also known as injection molding, is a molding method of injection and molding. The advantages of injection molding are fast production speed and high efficiency.

At present, in modern injection molds, injection molds for automobiles occupy a very important position. The injection mold generally consists of a movable mold and a fixed mold. The movable mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During production, the injection molding machine is usually used to inject plastic into the mold. Carry out the demoulding operation. Moreover, with the ejection structure of the existing injection mold, when the plastic inside the mold needs to be ejected with an ejector pin, the ejector pin often cannot eject the plastic part smoothly due to the limitation of the shape of the plastic part. Especially when the plastic part is large and the structure is complex, because the contact area between the thimble and the plastic part is relatively small, the local stress is too large, so that the surface of the plastic part becomes white and affects the quality of the injection molded product; at the same time, due to the small contact surface of the thimble, the mold release It is easy to cause mold damage during the process. Therefore, it is necessary to design a slider ejector pin ejection mechanism for automobile injection molds to solve the above problems.

In the prior art, Chinese Invention Patent Application No. 201810307357.2 discloses a spring-type mold ejection mechanism, including an upper mold and a lower mold, the lower mold is provided with cavities on both sides, and the middle part of the lower mold is set as a lower mold. In the model area, a cross bar is arranged under the lower model area, and the two ends of the cross bar are provided with struts that pass through the cavity; A and top rod B, the top rod A and top rod B pass through the bottom of the lower model area; the lower surface of the cross rod is provided with three protrusions, which are respectively located in the middle and both ends of the cross rod, and the protrusions are provided with springs; An upper model area is provided at the corresponding place of the upper mold and the lower mold, and a pressing rod is also provided at the two ends of the upper mold facing the cavity. Through simple mechanical parts, the ejector rod pushes out the mold under the action of the spring restoring force, which avoids deformation and damage to the mold, ensures the accuracy of the mold, and thus meets the production requirements. However, it still does not solve the problem that when the plastic part is large and the structure is complex, because the contact area between the ejector pin and the plastic part is relatively small and the local stress is too large, it is easy to whiten the surface of the plastic part and affect the quality of the product, and it is not easy to demold. , and the problem that the mold is easily damaged due to the small contact surface of the thimble.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a sliding block ejector pin ejection mechanism of an automobile injection mold, which can solve the problems that the inner mold is not easily ejected and demolded and the mold is damaged.

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions:

A sliding block ejector pin ejection mechanism of an automobile injection mold, comprising a fixed template, a guide post, a cavity, a connecting block, a movable template, a movable mold pad, a movable mold base, a push plate, a push-out fixed plate, a fixed block, a spring, A push rod, a thimble and a slider, a movable template is arranged on one side of the fixed template, a cavity is formed between the fixed template and the movable template, a guide post is arranged above the cavity, and the guide post is fixed It is installed on the movable formwork, one side of the movable formwork is provided with a movable die pad, the movable die pad is fixedly installed on the movable die base, and a push plate is arranged between the two movable die bases. One side of the push plate is provided with a push-out fixing plate, a fixing block is arranged inside the push-out fixing plate, one end of the fixing block is connected with a push rod, a spring is sleeved on the push rod, and one end of the push rod is A thimble is fixedly connected, and one side of the thimble is provided with a slider.

As a preferred technical solution of the present invention, the guide post is fixedly installed on the movable template through a connecting block.

As a preferred technical solution of the present invention, an injection port is provided on the movable die pad.

As a preferred technical solution of the present invention, the movable mold base is arranged on both sides of the movable mold backing plate, and a clamping block is provided below the movable mold base, and the clamping block is a detachable clamping block.

As a preferred technical solution of the present invention, an adhesive layer is arranged between the push plate and the push-out fixing plate, and a super glue is arranged inside the adhesive layer.

As a preferred technical solution of the present invention, the fixing block and the push rod are fixedly connected by means of screws.

As a preferred technical solution of the present invention, the push rod is fixedly connected to the ejector pin through the push-out fixing plate and the movable die backing plate, and the ejector pin and the slider are fixedly connected through a fastening block.

Compared with the prior art, the beneficial effects that the utility model can achieve are: the utility model is a sliding block ejector pin ejection mechanism of an automobile injection mold. The function of rapid material ejection, especially the slider is connected to one side of the ejector pin, so that the slider has more contact surfaces with the raw materials formed inside the mold, and it is easy to demould. The plastic parts are ejected smoothly, especially when the plastic parts are large and the structure is complex, because the contact area between the ejector pin and the plastic parts is relatively small, the local stress is too large, and the surface of the plastic parts is whitened and affects the quality of the injection molded products. At the same time, due to the increase of the contact surface of the ejector pin, the problem of mold damage during the demolding process is also avoided.

Description of drawings

Fig. 1 is the overall sectional structure schematic diagram of the present utility model;

Fig. 2 is the structural representation of the push plate and push-out fixed plate of the present invention;

Fig. 3 is the structural representation of the thimble and the slider of the present utility model;

Among them: 1. Fixed formwork; 2. Guide post; 3. Cavity; 4. Connecting block; 5. Moving formwork; ; 10, block; 11, fixed block; 12, spring; 13, push rod; 14, injection port; 15, thimble; 16, slider; 17, adhesive layer; 18, fastening block.

Detailed ways

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, but not to limit the present utility model.

Please refer to FIGS. 1-3 , the ejector mechanism of the slider of the automobile injection mold provided by the present utility model includes a fixed template 1, a guide post 2, a cavity 3, a connecting block 4, a movable template 5, and a movable mold backing plate 6. The movable mold base 7, the push plate 8, the push-out fixed plate 9, the fixed block 11, the spring 12, the push rod 13, the thimble 15 and the slider 16. The fixed template 1 is provided with a movable template 5 on one side. A cavity 3 is formed between the fixed die plate 1 and the movable die plate 5. A guide post 2 is arranged above the die cavity 3. The guide post 2 is fixedly installed on the movable die plate 5, and one side of the movable die plate 5 is provided There is a movable die pad 6, the movable die pad 6 is fixedly installed on the movable die base 7, a push plate 8 is provided between the two movable die bases 7, and one side of the push plate 8 is provided with a push-out The fixing plate 9, a fixing block 11 is arranged inside the pushing-out fixing plate 9, one end of the fixing block 11 is connected with a push rod 13, a spring 12 is sleeved on the push rod 13, and one end of the push rod 13 A thimble 15 is fixedly connected, and a slider 16 is provided on one side of the thimble 15 .

The guide post 2 is fixedly installed on the movable template 5 through the connecting block 4. The setting of the guide post 2 can better demould the automobile mold, so as to avoid unnecessary waste and damage to the mold; An injection port 14 is provided, through the setting of the injection port 14, the heated raw material is injected into the cavity 3 by the injection molding machine, and the desired mold can be obtained; the movable mold base 7 is arranged on both sides of the movable mold backing plate 6 , a clamping block 10 is arranged under the movable mold base 7, and the clamping block 10 is a detachable clamping block. There is a situation where the push plate 8 slides at will to cause damage to the mold; an adhesive layer 17 is arranged between the push plate 8 and the push-out fixing plate 9, and a super glue is arranged inside the adhesive layer 17, and through the setting of the adhesive layer 17 , the push plate 8 and the push-out fixing plate 9 can be better fixed; the fixing block 11 and the push rod 13 are fixedly connected by means of screws, and the push rod 13 can be better fixed inside the push-out fixing plate 9; The push rod 13 is fixedly connected to the ejector pin 15 through the push-out fixing plate 9 and the movable mold backing plate 6, and the ejector pin 15 and the slider 16 are fixedly connected by the fastening block 18, because the contact surface between the slider 16 and the mold is higher than before. The contact surface between the ejector pin and the mold is much larger, which can better eject the mold.

Specifically, first, the heated raw material is injected into the cavity 3 through the injection port 14, and after the mold is formed, the clamping block 10 is fixedly installed on the movable mold base 7, and the push plate 8 can be clamped to be used for It is better to push out the material formed by the mold. One side of the push plate 8 is provided with a push-out fixing plate 9. The push-out fixing plate 9 is provided with two push rods 13. The push rods 13 are sleeved with springs 12 for better performance. At the same time, a thimble 15 is provided at one end of the push rod 13, and a slide block 16 is provided on one side of the thimble 15. Since the existing mold uses the thimble and its contact surface is limited, the use of the slide block 16 can be better with the The molding material inside the mold is in contact, and it can be pushed out better.

The beneficial effects achieved by the utility model are as follows: the utility model is a sliding block ejector pin ejection mechanism of an automobile injection mold. The utility model is provided with a push plate, an ejector pin and a sliding block, so as to quickly remove the materials formed in the mold. The function of pushing out, especially the sliding block connected to one side of the ejector pin, makes the contact surface between the sliding block and the raw material formed inside the mold more, and it is easy to demould. The whitening of the surface of the part affects the quality of the injection molded product; at the same time, due to the increase of the contact surface of the ejector pin, the problem that the mold is easily damaged during the demolding process is also solved.

The embodiments of the present invention are not limited to this. According to the content of the above-mentioned embodiments of the present invention, using conventional technical knowledge and conventional means in the field, without departing from the above-mentioned basic technical ideas of the present invention, the above preferred embodiments can also be used. Other various forms of modifications, substitutions or combinations are made, and other obtained embodiments fall within the protection scope of the present invention.

Claims (7)

1. A sliding block ejector pin ejection mechanism of an automobile injection mold, comprising a fixed template (1), a guide post (2), a cavity (3), a connecting block (4), a movable template (5), and a movable mold pad (6), movable die base (7), push plate (8), push-out fixing plate (9), fixing block (11), spring (12), push rod (13), ejector pin (15) and slider (16) ), characterized in that a movable template (5) is provided on one side of the fixed template (1), and a cavity (3) is formed between the fixed template (1) and the movable template (5), and the mold A guide post (2) is arranged above the cavity (3), the guide post (2) is fixedly mounted on the movable template (5), and a movable template backing plate (6) is arranged on one side of the movable template (5). , the movable die pad (6) is fixedly installed on the movable die base (7), a push plate (8) is arranged between the two movable die bases (7), and one of the push plates (8) is A push-out fixing plate (9) is provided on the side, a fixing block (11) is arranged inside the pushing-out fixing plate (9), and one end of the fixing block (11) is connected with a push rod (13), and the push rod ( 13) A spring (12) is sleeved on the top, one end of the push rod (13) is fixedly connected with a thimble (15), and one side of the thimble (15) is provided with a slider (16). 2 . The slider ejector pin ejection mechanism of an automobile injection mold according to claim 1 , wherein the guide post ( 2 ) is fixedly mounted on the movable template ( 5 ) through a connecting block ( 4 ). 3 . 3. The slider ejector pin ejection mechanism of an automobile injection mold according to claim 1, wherein an injection port (14) is provided on the movable mold backing plate (6). 4. The slider ejector pin ejection mechanism of an automobile injection mold according to claim 1, wherein the movable mold base (7) is arranged on both sides of the movable mold backing plate (6), and the movable mold base A clamping block (10) is provided below the (7), and the clamping block (10) is a detachable clamping block. 5. The slider ejector pin ejection mechanism of an automobile injection mold according to claim 1, wherein an adhesive layer (17) is arranged between the push plate (8) and the push-out fixing plate (9), so that the Super glue is arranged inside the adhesive layer (17). 6 . The slider ejector pin ejection mechanism of an automobile injection mold according to claim 1 , wherein the fixing block ( 11 ) and the push rod ( 13 ) are fixedly connected by means of screws. 7 . 7 . The slider ejector pin ejection mechanism of an automobile injection mold according to claim 1 , wherein the ejector rod (13) passes through the ejection fixing plate (9), the movable mold backing plate (6) and the ejector pin ( 7 . 15) Fixed connection, the thimble (15) and the slider (16) are fixedly connected by a fastening block (18).

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