A slider inner sleeve core-pulling structure

Abstract

This utility model discloses a slider inner-slider core-pulling structure, including a rear template, a slider insert, a large slider, and a small slider. The key feature is that a driving unit is provided within the rear template, connected to the large slider to drive its movement within the rear template. A movable block and a limiting block are provided between the large slider and the small slider. The large slider is fixedly connected to the movable block, and the small slider is fixedly connected to the limiting block. A gap exists between the movable block and the limiting block. After mold opening, the large slider can drive the movable block to move the distance of the gap and then abut against the limiting block, thereby moving the small slider along with it. The slider insert is fixed to the movable block. This structure avoids the problem of the slider insert sticking to the product and eliminates the need to wait for the large slider to fully move to the mold opening position before the small slider can move, saving mold opening time and shortening the product production cycle.

Description

Technical Field

[0001] This utility model relates to an injection mold, and more particularly to a slider inner sleeve slider core-pulling structure. Background Technology

[0002] In the mold opening process of some molds, the large slider moves together with the front mold to the fully demolded position through the inclined ejector structure. Then, the small slider is driven by the hydraulic cylinder to pull the core until it moves to the fully demolded position. In the above process, the small slider needs to wait for the large slider to move into place before it can move. Therefore, the mold opening time is long and the production cycle is long.

[0003] Moreover, during demolding, the slider insert moves with the small slider, which can easily cause the insert to stick to the product. Therefore, it is necessary to add glue and increase the draft angle of the column, which results in the glue at the root of the column becoming thicker, and the cooling time and cycle being longer.

[0004] Therefore, in response to the above situation, the applicant has designed a slider inner sleeve slider core-pulling structure to solve the problem. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a slider inner sleeve slider core pulling structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A slider-in-slider core-pulling structure includes a rear template, a slider insert, a large slider, and a small slider. The rear template contains a driving unit connected to the large slider to drive its movement within the rear template. A movable block and a limiting block are provided between the large slider and the small slider. The large slider is fixedly connected to the movable block, and the small slider is fixedly connected to the limiting block. A gap exists between the movable block and the limiting block. After mold opening, the large slider can move the movable block a certain distance and then abut against the limiting block, thereby moving the small slider along with it. The slider insert is fixed to the movable block.

[0008] The large slider is provided with a receiving groove, the small slider is located in the receiving groove, the end of the movable block is fixed with a T-shaped block, and the groove wall of the receiving groove is provided with a T-shaped groove that cooperates with the T-shaped block.

[0009] The small slider has a sliding hole at its end, the movable block is set in the sliding hole and the T-shaped block extends out of the sliding hole and cooperates with the T-shaped groove, the limiting block is set at the opening of the sliding hole, the bottom of the sliding hole has a pin hole, and the slider pin extends out through the pin hole.

[0010] The rear template is provided with a rear mold insert, the rear mold insert is provided with a T-shaped groove, and the bottom of the small slider is provided with a T-shaped slider that cooperates with the T-shaped groove.

[0011] The rear mold insert is provided with an insert screw hole that communicates with the T-shaped slide groove. The insert screw hole is provided with an elastic steel ball. The side of the T-shaped slider is provided with a positioning hole that can be positioned and engaged with the elastic steel ball.

[0012] One end of the movable block is provided with a spring hole, and a spring is provided in the spring hole. One end of the spring abuts against the bottom of the sliding hole.

[0013] The rear template is provided with a rear mold groove, and a slider support seat is provided in the rear mold groove. The driving unit is fixed to the slider support seat, and a slider pressure plate is provided opposite to the slider support seat. The large slider slides along the slider support seat by being guided by the slider pressure plate.

[0014] The rear template is provided with a limiting plate, and the large slider can abut against the limiting plate.

[0015] The beneficial effects of this utility model are as follows: The large slider of this utility model is directly driven to move by the drive unit. The addition of a movable block and a limiting block, and the fixing of the slider pin to the movable block, enables the large slider and the small slider to achieve delayed linkage through the above structure. Therefore, when the large slider retracts first, it can drive the movable block and the slider pin to retract first, thus preventing the pin from sticking. After moving the distance of the specified gap, it abuts against the limiting block, thereby driving the small slider to move together and realizing the core pulling of the small slider. The above structure not only avoids the problem of the slider pin sticking to the product, but also does not require the large slider to move completely to the mold opening position before the small slider can move, saving the long mold opening time and shortening the product production cycle. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is an internal structural view of the mold when it is closed;

[0018] Figure 2 This is a cross-sectional view of the mold when it is closed.

[0019] Figure 3 This is an exploded view of the small slider section;

[0020] Figure 4 This is a cross-sectional view of the small slider and its internal structure;

[0021] Figure 5 This is a structural view of the large slider. Detailed Implementation

[0022] The advantages and features of this disclosure, as well as its implementation methods, will be illustrated by the following embodiments described with reference to the accompanying drawings. However, this disclosure may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is limited only by the scope of the claims.

[0023] The shapes, dimensions, scales, angles, and numbers disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore this disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, detailed descriptions of relevant known functions or configurations will be omitted where it is determined that such detailed descriptions would unnecessarily obscure the focus of this disclosure. Where the terms “comprising,” “having,” and “including” are used in this specification, additional components may be added unless “only” is used. Unless otherwise indicated, singular terms may include plural forms.

[0024] When interpreting components, even if not explicitly described, the components are understood to include a range of tolerances.

[0025] When describing positional relationships, such as "on," "above," "below," and "adjacent to," one or more parts may be arranged between two other parts unless "immediately following" or "directly" is used.

[0026] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” and “before,” discontinuous cases may be included unless “exactly” or “directly” is used.

[0027] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this disclosure.

[0028] As will be fully understood by those skilled in the art, the features of the different embodiments of this disclosure may be coupled or combined with each other in part or in whole, and may cooperate with each other and be technically driven in various ways. The embodiments of this disclosure may be implemented independently of each other, or may be implemented together in an interdependent relationship.

[0029] Reference Figures 1 to 5This utility model discloses a slider inner sleeve slider core-pulling structure, including a rear template 1, a slider insert 2, a large slider 3, and a small slider 4. The rear template 1 is provided with a driving unit 5, preferably a hydraulic cylinder. The driving unit 5 is connected to the large slider 3 and drives the large slider 3 to move in the rear template 1. A movable block 6 and a limiting block 7 are provided between the large slider 3 and the small slider 4. The large slider 3 is connected and fixed to the movable block 6, and the small slider 4 is fixed to the limiting block 7. There is a gap 21 between the movable block 6 and the limiting block 7. After the mold is opened, the large slider 3 can drive the movable block 6 to move a certain distance and then abut against the limiting block 7. This distance and the length of the gap 21 are equal, thereby driving the small slider 4 to move together. The slider insert 2 is fixed to the movable block 6.

[0030] The above principle is that during mold opening, the hydraulic cylinder is activated, driving the large slider 3 to move in a direction perpendicular to the mold opening direction. The large slider 3 drives the movable block 6 and the slider insert 2 to move. At this time, the small slider 4 remains stationary, thus allowing it to hold the product 22 in place. This ensures that the slider insert 2 is dislodged from the hole first, and prevents the product 22 from sticking to the slider insert 2 and deforming. After the large slider 3 moves the distance 21, it abuts against the limiting block 7, thereby driving the small slider 4 to move together, achieving the core pulling of the small slider 4. At this point, the large slider 3, small slider 4, and slider insert 2 move together until the large slider 3 abuts against the limiting plate and moves to the predetermined mold opening position. This structure avoids the problem of the slider insert 2 sticking to the product 22, and also eliminates the need to wait for the large slider 3 to fully move to the mold opening position before the small slider 4 can move, saving mold opening time and shortening the production cycle of the product 22.

[0031] As shown in the figure, the large slider 3 is provided with a receiving groove 8, and the small slider 4 is located in the receiving groove 8, thereby saving space. The end of the movable block 6 is fixed with a T-shaped block 9, and the groove wall of the receiving groove 8 is provided with a T-shaped groove 10 that cooperates with the T-shaped block 9. Because the small slider 4 of this application moves at a large angle and is pulled out, it is necessary to move relative to the large slider 3 in the mold opening direction by the T-shaped block 9 cooperating with the T-shaped groove 10, so as to avoid the small slider 4 being stuck when moving.

[0032] As shown in the figure, the end of the small slider 4 is provided with a sliding hole 11, the movable block 6 is disposed in the sliding hole 11 and the T-shaped block 9 extends out of the sliding hole 11 and cooperates with the T-shaped groove 10, the limiting block 7 is disposed at the opening of the sliding hole 11, and the bottom of the sliding hole 11 is provided with a pin hole, through which the slider pin 2 extends. The above structure is compact and saves space, and the sliding hole 11 can naturally play the role of guiding the movable block 6 to move.

[0033] As shown in the figure, the rear template 1 is provided with a rear mold insert 12, and the rear mold insert 12 is provided with a T-shaped groove 13. The bottom of the small slider 4 is provided with a T-shaped slider 14 that cooperates with the T-shaped groove 13. The T-shaped groove 13 structure can guide the small slider 4 to slide, and is easy to process and manufacture.

[0034] As shown in the figure, the rear mold insert 12 is provided with an insert screw hole 15 that communicates with the T-shaped slide 13. The insert screw hole 15 is provided with a spring steel ball. The side of the T-shaped slider 14 is provided with a positioning hole 16 that can be positioned and cooperate with the spring steel ball. In this application, there are two positioning holes 16. One positioning hole 16 is used to ensure that the small slider 4 will not shift due to vibration when the mold is closed, which would cause defects in the product 22. The other positioning hole 16 is used to position the small slider 4 after complete demolding to avoid it from shifting due to vibration and interfering with other parts when the mold is closed.

[0035] As shown in the figure, one end of the movable block 6 is provided with a spring hole 17, and a spring is provided in the spring hole 17. One end of the spring abuts against the bottom of the sliding hole 11. The spring can keep the movable block 6 and the small slider 4 in relative positions after the mold is opened, so as to avoid interference caused by the movement of the movable block 6 during the mold closing, which would cause the slider pin 2 to extend prematurely.

[0036] As shown in the figure, the rear template 1 is provided with a rear mold groove, and a slider support seat 18 is provided in the rear mold groove. The driving unit 5 is fixed to the slider support seat 18. A slider pressure plate 19 is provided opposite to the slider support seat 18. The large slider 3 slides along the slider support seat 18 under the guidance of the slider pressure plate 19. Through the above structure, the slider pressure plate 19 and the slider support seat 18 form a T-shaped groove, and the bottom of the large slider 3 is a matching T-shaped block, which ensures that the large slider 3 moves smoothly and is easy to process and manufacture.

[0037] As shown in the figure, the rear template 1 is provided with a limiting plate 20, and the large slider 3 can abut against the limiting plate 20, thereby positioning the large slider 3 after mold opening.

[0038] The above provides a detailed description of a slider inner sleeve slider core-pulling structure provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A slider inner-slider core-pulling structure, comprising a rear template, a slider insert, a large slider, and a small slider, characterized in that: The rear template is equipped with a driving unit, which is connected to the large slider and drives the large slider to move in the rear template. A movable block and a limiting block are provided between the large slider and the small slider. The large slider is connected and fixed to the movable block, and the small slider is fixed to the limiting block. There is a gap between the movable block and the limiting block. After the mold is opened, the large slider can drive the movable block to move a certain distance and then abut against the limiting block, thereby driving the small slider to move together. The slider insert is fixed to the movable block.

2. The slider inner sleeve slider core-pulling structure according to claim 1, characterized in that: The large slider is provided with a receiving groove, the small slider is located in the receiving groove, the end of the movable block is fixed with a T-shaped block, and the groove wall of the receiving groove is provided with a T-shaped groove that cooperates with the T-shaped block.

3. The slider inner sleeve core-pulling structure according to claim 2, characterized in that: The small slider has a sliding hole at its end, the movable block is set in the sliding hole and the T-shaped block extends out of the sliding hole and cooperates with the T-shaped groove, the limiting block is set at the opening of the sliding hole, the bottom of the sliding hole has a pin hole, and the slider pin extends out through the pin hole.

4. The slider inner sleeve core-pulling structure according to claim 1, wherein: The rear template is provided with a rear mold insert, the rear mold insert is provided with a T-shaped groove, and the bottom of the small slider is provided with a T-shaped slider that cooperates with the T-shaped groove.

5. The slider inner sleeve core-pulling structure according to claim 4, characterized in that: The rear mold insert has an insert screw hole that communicates with the T-shaped slide groove. The insert screw hole contains an elastic steel ball. The side of the T-shaped slider has a positioning hole that can be positioned and engaged with the elastic steel ball.

6. The slider inner sleeve core-pulling structure according to claim 3, characterized in that: One end of the movable block is provided with a spring hole, and a spring is provided in the spring hole. One end of the spring abuts against the bottom of the sliding hole.

7. The slider inner sleeve core-pulling structure according to claim 1, wherein: The rear template is provided with a rear mold groove, and a slider support seat is provided in the rear mold groove. The driving unit is fixed to the slider support seat, and a slider pressure plate is provided opposite to the slider support seat. The large slider slides along the slider support seat by being guided by the slider pressure plate.

8. The slider inner sleeve slider core-pulling structure according to claim 1, characterized in that: The rear template is provided with a limiting plate, and the large slider can abut against the limiting plate.

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