Die with sliding block ejector pin mechanism

Abstract

The utility model relates to the technical field of toy production, in particular to a mould with a sliding block ejector pin mechanism, which comprises a mould body and a sliding block slidably mounted in the mould body, an inclined guide pillar matched with the sliding block is arranged on the mould body, a sliding cavity is arranged in the sliding block, and the sliding cavity is provided with an ejector pin. An ejector pin is movably inserted in the side, close to the center of the mold body, of the sliding block in a penetrating mode, a sliding plate is slidably installed in the sliding cavity, the peripheral side of the sliding plate abuts against the inner wall of the sliding cavity, and the end, located in the sliding cavity, of the ejector pin is connected with the sliding plate; a communicating pipe is connected to the side, away from the ejector pin, of the sliding cavity, and a reset piece used for resetting the ejector pin is arranged in the sliding cavity. According to the mold with the sliding block ejector pin mechanism, the ejector pin driving mode is simple, and no external driving structure is arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of toy production, in particular to a mold with a slider and ejector mechanism. Background Art

[0002] Currently, most toys are produced using injection molding for their various components. Due to the large number of curved surfaces in toys and the thin shells in some areas, the thin shells are prone to adhesion to the mold cavity during the actual injection molding and demolding process. To address this issue, the mold is generally designed with an ejector mechanism to eject the molded product from the mold. However, the more complex the molded product, the more ejector mechanisms are required. In addition to the traditional ejector mechanism at the bottom, ejectors are also required on the inclined shovel slider to eject the product from the lower mold from multiple directions to ensure product quality.

[0003] For example, patent CN102950735A - a mold with a slider and ejector pin, sets an ejector pin inside the slider and an ejector pin fixing plate on one side of the slider, allowing one end of the ejector pin to support the product to be processed, preventing damage to the product without affecting the injection molding cycle. At the same time, it has a simple structure, is easy to process, and improves production efficiency. However, this patent adopts an external drive method, that is, the ejector pin fixing plate is placed on the outer wall of the entire mold. In this way, during the opening and closing of the mold, the external operating mechanism needs to design an avoidance structure to avoid the ejector pin fixing plate. At the same time, a structure specifically driving the action of the ejector pin fixing plate needs to be designed, making the entire structure of the mold opening and closing equipment more complicated. Utility Model Content

[0004] In order to overcome one of the deficiencies of the prior art, the present invention aims to provide a mold with a slider and ejector mechanism. The mold with the slider and ejector mechanism has a simple method of driving the ejector and does not require an external driving structure.

[0005] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0006] A mold with a slider and ejector mechanism comprises a mold body and a slider slidably mounted in the mold body, the mold body being provided with an inclined guide column cooperating with the slider, a sliding cavity being provided in the slider, an ejector pin being movably inserted through a side of the slider close to the center of the mold body, a sliding plate being slidably mounted in the sliding cavity, the peripheral side of the sliding plate abutting against the inner wall of the sliding cavity, one end of the ejector pin located in the sliding cavity being connected to the sliding plate; a connecting pipe is connected to the side of the sliding cavity away from the ejector pin, and a resetting member for resetting the ejector pin is provided in the sliding cavity.

[0007] Furthermore, the slider includes a sliding body and a locking body, the locking body is buckled on the sliding body and forms the sliding cavity, the ejector pin is movably inserted into the sliding body, and the connecting pipe is connected to the locking body.

[0008] Furthermore, the sliding body and the locking body are both provided with an oblique guide hole for cooperating with the oblique guide column, and the oblique guide hole is not communicated with the sliding cavity.

[0009] Furthermore, an operating hole is provided on a side of the locking body away from the ejector pin, and a sealing plug is provided on the operating hole.

[0010] Furthermore, a threaded blind hole is provided on the area of ​​the sliding plate corresponding to the operating hole.

[0011] Furthermore, the sliding body is provided with a movable hole for cooperating with the ejector pin, and the movable hole forms a mounting ring platform at one end close to the sliding cavity. One end of the reset member is mounted on the mounting ring platform, and the other end of the reset member abuts against the corresponding side surface of the sliding plate.

[0012] Furthermore, a sealing member is provided on the engaging surface between the sliding body and the locking body.

[0013] Furthermore, the mold body includes an upper mold, an upper mold core, a lower mold core and a lower mold arranged in sequence from top to bottom, the upper mold core and the lower mold core are interlocked to form a molding cavity, a lower ejector mechanism is provided on the lower mold core, the lower ejector mechanism is installed on the lower mold and the output end is movably inserted on the lower mold core, the slider is slidably installed on the lower mold, and the side of the slider close to the lower mold core constitutes a partial cavity wall of the molding cavity, and the inclined guide column is installed on the upper mold.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The present invention provides a mold with a slider and ejector mechanism. A sliding cavity is provided within the slider, forming a sealed cavity within the sliding cavity. A sliding plate is also provided within the sliding cavity, with the circumference of the sliding plate abutting against the inner wall of the sliding cavity. This design allows the sliding plate to separate the sliding cavity into two independent spaces. A connecting tube is then used to inflate the sliding cavity, causing the sliding plate to drive the ejector along the end away from the connecting tube, forming a piston structure as a whole. Finally, a reset member is used for reset, eliminating the trouble of reversely pumping air from the connecting tube and reducing control requirements. The mold with a slider and ejector mechanism has a simple structure, and the entire ejector is driven in a simple manner that is not easily stuck. A complex external drive structure is not required, simplifying the mold opening and closing structure.

[0016] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 This is a partial structural diagram of an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the cooperation between the slider and the lower die core in the embodiment of the utility model;

[0020] Figure 4 yes Figure 3 Cross-sectional view along the AA direction.

[0021] Description of Figure Numbers:

[0022] Mold body 10, upper mold 11, upper mold core 12, lower mold core 13, lower mold 14, lower ejector mechanism 15, molding cavity 16, slider 20, sliding cavity 21, sliding plate 22, connecting pipe 23, reset part 24, sliding body 25, locking body 26, inclined guide hole 27, operating hole 28, inclined guide column 30, ejector 40. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] Reference Figures 1 to 4 The mold shown has a slider and ejector mechanism, including a mold body 10 and a slider 20 slidably installed in the mold body 10, the mold body 10 is provided with an inclined guide column 30 cooperating with the slider 20, a sliding cavity 21 is provided in the slider 20, and an ejector 40 is movably inserted through the side of the slider 20 close to the center of the mold body 10, a sliding plate 22 is slidably installed in the sliding cavity 21, the peripheral side of the sliding plate 22 abuts against the inner wall of the sliding cavity 21, and one end of the ejector 40 located in the sliding cavity 21 is connected to the sliding plate 22; a connecting pipe 23 is connected to the side of the sliding cavity 21 away from the ejector 40, and a reset member 24 for resetting the ejector 40 is provided in the sliding cavity 21.

[0025] Among them, the mold body 10 can be a conventional mold with a slider 20 in this field. At the same time, the connection structure between the slider 20 and the mold body 10 can also be a conventional structural design, which is not described in detail in this application. It should be noted that in this application, the overall space of the sliding cavity 21 is not large, and there are multiple ejector pins 40. Therefore, multiple sliding cavities 21 can also be designed, or the sliding plate 22 in the same sliding cavity 21 can drive multiple ejector pins 40 at the same time. In this application, the slider 20 is respectively provided with sliding cavities 21 on both sides of the matching area of ​​the inclined guide column 30, which increases the ejection effect of the product.

[0026] The mold with a slider and ejector mechanism has a sliding cavity 21 disposed within the slider 20, forming a sealed cavity within the sliding cavity 21. A sliding plate 22 is also disposed within the sliding cavity 21, with the circumference of the sliding plate 22 abutting against the inner wall of the sliding cavity 21. This design allows the sliding plate 22 to separate the sliding cavity 21 into two independent spaces. The sliding cavity 21 is then inflated using the connecting tube 23, causing the sliding plate 22 to drive the ejector 40 along the end away from the connecting tube 23, forming a piston structure. Finally, the reset member 24 is used to reset the mold, eliminating the trouble of reversely pumping air from the connecting tube 23 and reducing control requirements. The mold with a slider and ejector mechanism has a simple structure, and the entire ejector 40 is driven in a simple manner that is not easily stuck. A complex external drive structure is not required, simplifying the mold opening and closing structure.

[0027] See also Figure 1 and Figure 2 In the present application, the mold body 10 includes an upper mold 11, an upper mold core 12, a lower mold core 13, and a lower mold 14, which are arranged in sequence from top to bottom. The upper mold core 12 and the lower mold core 13 are interlocked to form a molding cavity 16. The lower mold core 13 is provided with a lower ejector mechanism 15, which is mounted on the lower mold 14 and has an output end movably inserted into the lower mold core 13. The slider 20 is slidably mounted on the lower mold 14. The side of the slider 20 close to the lower mold core 13 constitutes part of the cavity wall of the molding cavity 16. The inclined guide column 30 is mounted on the upper mold 11. Among them, a sliding position is provided on the lower mold 14, and the slider 20 is slidably mounted on the sliding position. At the same time, limiting clamps are provided on both sides of the sliding position. The limiting clamps are used to limit the slider 20 to the sliding position, so that the slider 20 can only slide along the limiting directions of the two limiting clamps. In addition, an avoidance position is provided on the area of ​​the upper mold 11 where the slider 20 is located. The lower ejector mechanism 15 is an existing ejector structure, which will not be described in detail in this application.

[0028] See also Figure 4To facilitate the installation of the aforementioned sliding plate 22, ejector pin 40, and other structures, in one embodiment of the present application, the slider 20 includes a sliding body 25 and a locking body 26. The locking body 26 is fastened to the sliding body 25 and forms the sliding cavity 21. The ejector pin 40 is movably inserted through the sliding body 25, and the connecting tube 23 is connected to the locking body 26. The sliding body 25 and the locking body 26 are both provided with an inclined guide hole 27 for mating with the inclined guide post 30. The inclined guide hole 27 is not connected to the sliding cavity 21.

[0029] More specifically, the sliding cavity 21 in this application is provided with two sets, one on each side of the inclined guide hole 27. In the above embodiment, the sliding body 25 and the locking body 26 are fixed together by screws. The edge of the sliding body 25 is provided with a buckling edge structure that mates with the locking body 26 to enhance the tightness of the fit between the two. Furthermore, to further enhance the tightness of the buckling, a seal is provided on the buckling surface between the sliding body 25 and the locking body 26.

[0030] In some embodiments, a sealing ring is provided on the peripheral side of the sliding plate 22 , and the sealing ring abuts against the inner wall of the sliding cavity 21 , so that the sliding plate 22 and the sliding cavity 21 form a piston structure, and the ejector pin 40 serves as the output end of the piston structure.

[0031] In the aforementioned improved solution, if the connecting tube 23 malfunctions and cannot be driven normally, in order to facilitate normal opening of the entire mold, in one embodiment of the present application, an operating hole 28 is provided on the side of the locking body 26 away from the ejector pin 40, and the operating hole 28 is blocked with a sealing plug. This design allows the sliding plate 22 to slide within the sliding cavity 21 by passing a tool through the operating hole 28 if pressurized gas cannot be used to drive the sliding plate 22 to slide within the sliding cavity 21.

[0032] Furthermore, in some embodiments, in order to facilitate driving the sliding plate 22 , a threaded blind hole is provided on the sliding plate 22 in an area corresponding to the operating hole 28 . This design facilitates connection of external tools to the sliding plate 22 and subsequent joint operations.

[0033] In the above embodiment, to facilitate installation of the reset member 24, the reset member 24 is preferably a spring. Of course, in some embodiments, the reset member 24 can also be a spring. If it is a spring, the sliding body 25 is provided with a movable hole for engaging the ejector pin 40. The movable hole forms a mounting ring near one end of the sliding cavity 21. One end of the reset member 24 is mounted on the mounting ring, and the other end of the reset member 24 abuts the corresponding side surface of the sliding plate 22. The reset member 24 is movably mounted on the ejector pin 40, and the mounting ring is designed primarily to facilitate the restraint and fixation of the reset member 24.

[0034] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A mold with a slider ejector mechanism, comprising a mold body and a slider slidably mounted in the mold body, wherein the mold body is provided with an inclined guide column cooperating with the slider, characterized in that: A sliding cavity is provided in the slider, and an ejector pin is movably inserted through the side of the slider close to the center of the mold body. A sliding plate is slidably installed in the sliding cavity, and the peripheral side of the sliding plate abuts against the inner wall of the sliding cavity. One end of the ejector pin located in the sliding cavity is connected to the sliding plate; a connecting pipe is connected to the side of the sliding cavity away from the ejector pin, and a reset member for resetting the ejector pin is provided in the sliding cavity.

2. The mold with a slider and ejector mechanism according to claim 1, characterized in that: The slider includes a sliding body and a locking body. The locking body is buckled on the sliding body to form the sliding cavity. The ejector pin is movably inserted through the sliding body. The connecting pipe is connected to the locking body.

3. The mold with a slider and ejector mechanism according to claim 2, characterized in that: The sliding body and the locking body are both provided with an oblique guide hole for cooperating with the oblique guide column, and the oblique guide hole is not communicated with the sliding cavity.

4. The mold with a slider and ejector mechanism according to claim 2, characterized in that: An operating hole is provided on a side of the locking body away from the ejector pin, and a sealing plug is provided on the operating hole.

5. The mold with a slider and ejector mechanism according to claim 4, characterized in that: A threaded blind hole is provided on the sliding plate in an area corresponding to the operating hole.

6. The mold with a slider and ejector mechanism according to claim 2, characterized in that: The sliding body is provided with a movable hole for cooperating with the ejector pin, and the movable hole forms a mounting ring platform at one end close to the sliding cavity. One end of the reset member is mounted on the mounting ring platform, and the other end of the reset member abuts against the corresponding side surface of the sliding plate.

7. A mold with a slider and ejector mechanism according to any one of claims 2 to 6, characterized in that: A sealing member is provided on the engaging surface between the sliding body and the locking body.

8. The mold with a slider and ejector mechanism according to claim 1, characterized in that: The mold body includes an upper mold, an upper mold core, a lower mold core and a lower mold arranged in sequence from top to bottom. The upper mold core and the lower mold core are buckled together to form a molding cavity. A lower ejector mechanism is provided on the lower mold core. The lower ejector mechanism is installed on the lower mold and the output end is movably inserted on the lower mold core. The slider is slidably installed on the lower mold. The side of the slider close to the lower mold core constitutes a part of the cavity wall of the molding cavity. The inclined guide column is installed on the upper mold.

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