A slider-up pin plate control structure

Abstract

The utility model discloses a slider upper thimble board control structure, including front mould, the slider of can move along rear mould, the inner chamber of slider is equipped with thimble board and forming insert, it is characterized by: the front mould is equipped with front mould groove, the inner chamber of slider still is equipped with elastic part, the slider can be located in front mould groove, the front mould groove has a control surface, be equipped with inclined top structure between the front mould and slider, just thimble board can abut with control surface and abut with elastic part and control thimble board's movement, be equipped with guide structure between forming insert and slider and thimble board, when opening mould, the front mould can drive slider to move through inclined top structure, and slider moves simultaneously can drive forming insert to trip through guide structure, be equipped with shovel on the front mould, the shovel can abut with thimble board and make thimble board reset. Thus its control structure is simple, above all, the structure shortens the opening mould time, and moreover reduced cost.

Description

Technical Field

[0001] This utility model relates to an injection mold, and more particularly to a control structure for an ejector plate on a slider. Background Technology

[0002] The product to be injection molded in this application has a snap-fit ​​part, so a molding insert is set in the slider. The end of the molding insert extends out of the slider to form the snap-fit ​​part. In order for the molding insert to be able to disengage, an ejector plate and a snap-fit ​​mechanism are set to guide and control the movement of the molding insert. The slider can be driven by a hydraulic cylinder to move along the rear mold.

[0003] The mold opening method of the above structure is as follows: the front mold separates from the rear mold first. After the front mold is separated to a safe position, the oil cylinder drives the slider to exit. During the exit of the slider, the locking mechanism controls the ejector plate to remain stationary, thereby controlling the molding insert to prevent it from moving in the direction of the slider. At the same time, it drives the molding insert to move downward (opposite to the direction of the front mold) to achieve the end of the molding insert to be released. After the molding insert is released, the locking mechanism unlocks the control of the ejector plate. At this time, the ejector plate can drive the molding insert to move together with the slider to the mold opening position.

[0004] The above method requires the front mold to separate to a safe position before the cylinder drives the slider to exit, which results in a long mold opening time and low efficiency. In addition, the cylinder is required as a driving unit, which leads to high cost. Furthermore, the ejector plate also needs to be controlled by the locking mechanism, which makes the locking mechanism more complex in structure. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a slider upper ejector plate control structure.

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

[0007] A slider ejector plate control structure includes a front mold and a slider movable along a rear mold. An ejector plate and a forming insert are provided in the inner cavity of the slider. The front mold has a front mold groove, and the inner cavity of the slider also has an elastic element. The slider can be located within the front mold groove, which has a control surface. A slanted ejector structure is provided between the front mold and the slider. The ejector plate can abut against the control surface and the elastic element to control the movement of the ejector plate. A guide structure is provided between the forming insert, the slider, and the ejector plate. When the mold is opened, the front mold can drive the slider to move via the slanted ejector structure, and simultaneously, the slider can disengage the forming insert via the guide structure. A chuck is provided on the front mold, which can abut against the ejector plate to reset the ejector plate.

[0008] The ejector plate is provided with a control rod, which can extend out of the inner cavity and abut against the control surface.

[0009] The elastic element is a compression spring, one end of which abuts against the cavity wall of the inner cavity, while the other end of the compression spring abuts against the ejector plate.

[0010] The ejector plate is provided with a spring-loaded support pin, and the compression spring is disposed on the spring-loaded support pin.

[0011] The inclined top structure includes an inclined guide hole disposed on the slider and an inclined guide rod fixed to the front mold, wherein the inclined guide rod and the inclined guide hole are slidably engaged.

[0012] The slider has an inner hole and an end plate that closes the inner hole, and the inner cavity is composed of the inner hole and the end plate.

[0013] The guide structure includes an oblique sliding hole disposed on the slider and communicating with the inner cavity, and the forming insert is slidably engaged with the oblique sliding hole.

[0014] The guiding structure also includes a guide groove disposed on the ejector plate and a guide block disposed at the end of the forming insert, the guide block being able to slide along the guide groove.

[0015] The ejector plate is provided with a boss, and the guide groove is located on the boss.

[0016] The shovel is equipped with an inclined surface, which can abut against the control rod to reset the ejector plate.

[0017] The beneficial effects of this utility model are as follows: The slider of this mold is linked with the front mold through the inclined ejector structure. Therefore, when the mold is opened, the slider can move with the front mold. At the same time, the slider can drive the molding insert to disengage through the guide structure. The ejector plate moves by the push of the elastic element. However, the movement of the ejector plate can be controlled by the control surface. Therefore, its control structure is simple. In summary, the above structure shortens the mold opening time and reduces the cost. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a structural view of the present invention;

[0020] Figure 2 This is an internal structural view of the present invention;

[0021] Figure 3 This is a cross-sectional structural view of the present invention;

[0022] Figure 4 This is an exploded structural view of the present invention. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] When interpreting components, even if not explicitly described, the components are understood to include a range of tolerances.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Reference Figures 1 to 4This utility model discloses a control structure for an ejector plate on a slider, including a front mold 1 and a slider 3 that can move along a rear mold 2. An ejector plate 5 and a forming insert 6 are provided in the inner cavity 4 of the slider 3. The front mold 1 is provided with a front mold groove 7. An elastic element is also provided in the inner cavity 4 of the slider 3. The slider 3 can be located in the front mold groove 7. The front mold groove 7 has a control surface 8. An inclined ejector structure is provided between the front mold 1 and the slider 3. The ejector plate 5 can abut against the control surface 8 and against the elastic element 9 to control the movement of the ejector plate 5. A guide structure is provided between the forming insert 6, the slider 3, and the ejector plate 5. When the mold is opened, the front mold 1 can drive the slider 3 to move through the inclined ejector structure. At the same time as the slider 3 moves, the forming insert 6 can be disengaged through the guide structure.

[0031] The principle of the above structure is as follows: When the mold opens, the front mold 1 drives the slider 3 to move backward along the rear mold 2 through the inclined ejector structure. At this time, the slider 3 drives the molding insert 6 to move downward through the guide structure and disengage from the injection molded product 100. At this time, the ejector plate 5 abuts against the control surface 8, so the elastic element 9 cannot push the ejector plate 5 to move. The front mold 1 continues to move until the control surface 8 is higher than the ejector plate 5. Then the ejector plate 5 loses the restriction of the control surface 8 and moves backward along the inner cavity 4 under the push of the elastic element 9. When the slider 3 moves backward to the final position after the mold opens, the ejector plate 5 will also move to the position abutting against the inner cavity 4 to achieve complete withdrawal. When the mold closes, the front mold 1 descends and drives the slider 3 to move forward along the rear mold 2 through the inclined ejector structure. After descending a certain height, the shovel 22 on the front mold 1 can abut against the ejector plate 5, so that the ejector plate 5 compresses the elastic element 9 and the slider 3 to move forward together. Finally, the slider 3 and the ejector plate 5 return to the position when the mold closes.

[0032] As shown in the figure, the ejector plate 5 is provided with a control rod 10, which can pass through the inner cavity 4 and abut against the control surface 8. The above design facilitates manufacturing and simplifies the structure.

[0033] As shown in the figure, the elastic element 9 is a compression spring. One end of the compression spring abuts against the cavity wall of the inner cavity 4, while the other end abuts against the ejector plate 5. Furthermore, the ejector plate 5 is provided with a spring support pin 11, and the compression spring is disposed on the spring support pin 11, so that the compression spring will not be deflected.

[0034] The inclined top structure includes an inclined guide hole 12 disposed on the slider 3 and an inclined guide rod 13 fixed to the front mold 1. The inclined guide rod 13 is slidably engaged with the inclined guide hole 12. Through the above structure, the slider 3 can be driven to move perpendicular to the moving direction of the front mold 1 when the front mold 1 is opened.

[0035] As shown in the figure, the slider 3 is provided with an inner hole and an end plate 14 that closes the inner hole. The inner cavity 4 is composed of the inner hole and the end plate 14. The above structure facilitates assembly. After the ejector plate 5 and related components are installed, the inner hole is closed by the end plate 14. The end plate 14 has a through hole for the control rod 10 to pass through.

[0036] The guiding structure includes an oblique sliding hole 15 disposed on the slider 3 and communicating with the inner cavity 4. The forming insert 6 is slidably engaged with the oblique sliding hole 15. Through the above structure, when the slider 3 slides, the oblique sliding hole 15 presses the forming insert 6 to move downward and disengage. Of course, the guiding structure also includes a guide groove 16 disposed on the ejector plate 5 and a guide block 17 disposed at the end of the forming insert 6. The guide block 17 can slide along the guide groove 16. The guide block 17 is preferably a T-shaped block, and the guide groove 16 is preferably a T-shaped groove. In this way, when the forming insert 6 moves downward, the end also moves downward synchronously through the guidance of the guide block 17 and the guide groove 16. Moreover, when the ejector plate 5 moves, the T-shaped structure can drive the forming insert 6 to move together. To facilitate manufacturing, the ejector plate 5 is provided with a boss 18, and the guide groove 16 is located on the boss 18. This way, the guide groove 16 does not need to be too long, reducing processing time. The ejector plate 5 of this application is also provided with a front plate 19 fixed by screws. The front plate 19 is provided with a spring positioning hole 20, and the spring support pin 11 passes through the spring positioning hole 20. Therefore, the end of the compression spring can also be located in the spring positioning hole 20, which makes it more stable. In addition, the front plate 19 is also provided with a limiting hole 21, and the boss 18 is located in the limiting hole 21. Therefore, the hole wall of the limiting hole 21 can limit the guide block 17 from coming out of the guide groove 16.

[0037] As shown in the figure, the shovel 22 is provided with an inclined surface 23, which can abut against the control rod 10 to reset the ejector plate 5. Of course, the control rod 10 is also provided with an inclined surface. So when the mold is closed, the ejector plate 5 can be pushed back to its position when the mold is closed by the mutual pressing of the two inclined surfaces. The control surface 8 of this application is the inner wall of the front mold groove 7, which is also a vertical plane and includes the side of the shovel 22. For ease of manufacturing, the shovel 22 and the front mold are manufactured separately and then fixed in the front mold groove 7 with screws.

[0038] The above provides a detailed description of a slider upper ejector plate control 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 ejector plate control structure, comprising a front mold and a slider movable along a rear mold, wherein an ejector plate and forming inserts are provided in the inner cavity of the slider, characterized in that: The front mold is provided with a front mold groove, and the inner cavity of the slider is also provided with an elastic element. The slider can be located in the front mold groove. The front mold groove has a control surface. The front mold and the slider are provided with a sloping ejector structure. The ejector plate can abut against the control surface and the elastic element to control the movement of the ejector plate. The forming insert is provided with a guide structure between the slider and the ejector plate. When the mold is opened, the front mold can drive the slider to move through the sloping ejector structure. At the same time as the slider moves, it can drive the forming insert to disengage through the guide structure. The front mold is provided with a scraper. The scraper can abut against the ejector plate to reset the ejector plate.

2. The slider upper ejector plate control structure according to claim 1, characterized in that: The ejector plate is provided with a control rod, which can extend out of the inner cavity and abut against the control surface.

3. The slider upper ejector plate control structure according to claim 1, characterized in that: The elastic element is a compression spring, one end of which abuts against the cavity wall of the inner cavity, while the other end of the compression spring abuts against the ejector plate.

4. The slider upper ejector plate control structure according to claim 3, characterized in that: The ejector plate is provided with a spring-loaded support pin, and the compression spring is disposed on the spring-loaded support pin.

5. The slider upper ejector plate control structure according to claim 1, characterized in that: The inclined top structure includes an inclined guide hole disposed on the slider and an inclined guide rod fixed to the front mold, wherein the inclined guide rod and the inclined guide hole are slidably engaged.

6. The slider upper ejector plate control structure according to claim 1, characterized in that: The slider has an inner hole and an end plate that closes the inner hole, and the inner cavity is composed of the inner hole and the end plate.

7. The slider upper ejector plate control structure according to claim 1, characterized in that: The guide structure includes an oblique sliding hole disposed on the slider and communicating with the inner cavity, and the forming insert is slidably engaged with the oblique sliding hole.

8. The slider upper ejector plate control structure according to claim 1, characterized in that: The guiding structure also includes a guide groove disposed on the ejector plate and a guide block disposed at the end of the forming insert, the guide block being able to slide along the guide groove.

9. The slider upper ejector plate control structure according to claim 8, characterized in that: The ejector plate is provided with a boss, and the guide groove is located on the boss.

10. The slider upper ejector plate control structure according to claim 2, characterized in that: The shovel is equipped with an inclined surface, which can abut against the control rod to reset the ejector plate.

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