Glue feeding structure of rear mold sliding block

Abstract

The utility model discloses a rear mold slide block glue feeding structure which comprises slide blocks, a mold core, an injection molding structure and an ejector pin structure, a plurality of slide blocks are inserted into the peripheral end of the mold core, the slide blocks on two sides of the mold core can be mutually opened and closed, the injection molding structure is fixed on the slide blocks, an injection molding port is arranged in the mold core, and the ejector pin structure can be inserted from the bottom end and the side end of the mold core. The thimble structure comprises a first thimble, a second thimble and a third thimble; during injection molding, the sliding blocks on the two sides are folded, the injection molding holes are aligned to the mold core, and after injection molding is completed, the sliding blocks are separated, the multiple ejection positions at the bottom end of the injection molding structure move to correspond to the first ejector pin and the second ejector pin correspondingly, the second ejector pin moves upwards to eject the injection molding structure out, the injection molding holes are forcibly separated from a finished product, and the third ejector pin is inserted into the side end to demold the finished product. The integrity of finished products is protected by moving the injection molding structure, the injection molding structure and the sliding block are integrated, the sliding block drives the injection molding structure to move to be aligned with the ejector pin, the ejection action is completed, and the injection molding mechanism has the advantages of being high in finished product yield, high in production efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the field of ejector pins, in particular to a glue feeding structure of a rear mold slider. Background Art

[0002] Early slider-based injection systems were likely relatively simple, relying primarily on traditional injection methods, such as placing an inlet directly in a fixed location within the mold. This approach met production needs for simple plastic parts with minimal injection requirements. However, with the continuous advancement of mold design technology, slider-based injection systems have also seen significant improvements. For example, the emergence of in-slider injection systems, which utilize flow channels within the slider to enable injection molding from the side of the part or in locations where direct injection is difficult.

[0003] However, the existing slider glue feeding structure still has the following problems:

[0004] The slider's injection molding mechanism is complex and requires high precision. Because a complex flow channel system is required within the slider, strict dimensional accuracy and surface quality must be controlled during processing to ensure optimal injection molding results. During mold opening and ejection, if the slider's movement is not smooth or the ejection mechanism is poorly designed, the product can easily become stuck in the slider, preventing successful demolding. This not only affects production efficiency but can also damage the mold and the product.

[0005] Therefore, how to design a slider glue feeding structure with fast ejection structure efficiency and high finished product yield has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of the utility model is to provide a glue feeding structure of a rear mold slider to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A rear mold slider glue feeding structure is provided, comprising a slider, a mold core, an injection molding structure and an ejector pin structure, wherein the multiple sliders are inserted into the peripheral end of the mold core, and the sliders on both sides of the mold core can be opened and closed under the drive of specific equipment, the injection molding structure is fixed on the slider, and the injection outlet is located in the mold core. The ejector pin structure can be inserted from the bottom end and the side end of the mold core, and the ejector pin structure comprises a first ejector pin, a second ejector pin and a third ejector pin; when injection molding is performed, the sliders on both sides are closed, and the injection hole is aligned with the mold core. After injection molding is completed, the sliders are separated, and the multiple ejection positions at the bottom end of the injection molding structure move to correspond to the first ejector pin and the second ejector pin respectively. The second ejector pin moves upward to eject the injection molding structure, and the injection hole is forcibly separated from the finished product. The third ejector pin is inserted at the side end to demold the finished product.

[0009] Furthermore, the slider includes a concave block and a convex block, the concave block is provided with a first plug hole, the convex block is provided with a second plug hole, and the convex block can be plugged into the peripheral end of the mold core.

[0010] Furthermore, it includes a support block, which passes through the first insertion hole and is fixed to the slider, and the support block is fixed to the specific device.

[0011] Furthermore, the injection port is inserted into the second insertion hole, and the second insertion hole is connected to the cavity of the injection-molded product.

[0012] Furthermore, the injection molding structure includes an injection molding channel, a port of the injection molding channel is connected to the injection molding port, and a top position is provided at the bottom end of the end surface where the injection molding channel and the injection molding port are connected.

[0013] Furthermore, the bottom surface of the injection channel is higher than the top surface of the mold core. When the first ejector pin and the second ejector pin rise, the first ejector pin and the second ejector pin contact the bottom surface and the top position of the injection channel respectively at the same time.

[0014] Furthermore, the mold core is provided with a socket corresponding to the ejector structure.

[0015] Furthermore, there may be multiple injection ports, each of which is provided with an ejector position and a corresponding first ejector pin.

[0016] Furthermore, the mold core is provided with a mounting position next to the cavity of the injection-molded product, and a module for the plastic product is fixed at the mounting position.

[0017] Furthermore, a top plate is fixed to the bottom of the ejector structure, and the top plate provides power for the ejector structure to move.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model provides a rear mold slider glue feeding structure, an injection channel is fixed to the slider, the injection channel can be moved together by the slider, a top position is provided at the bottom end of the injection channel, and an injection port is provided at the injection port, when injection molding is performed, the slider moves the injection port to the injection cavity port, the slider is plugged into the mold core, and after injection molding is completed, one side of the slider drives the injection channel to separate from the finished product, and the top position at the bottom of the injection channel is aligned with the second ejector pin, the first ejector pin corresponds to the injection channel, the first ejector pin and the second ejector pin rise upward at the same time, the first ejector pin and the second ejector pin synchronously eject the injection structure upward, the third ejector pin passes through the mold core to demold the finished product, and the integrity of the finished product is protected by moving the injection molding structure, the injection molding structure is integrated with the slider, the slider drives the injection molding structure to move and align with the ejector pin to complete the ejection action, and the utility model has the characteristics of high finished product yield, high production efficiency, and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a three-dimensional structural diagram of a rear mold slider glue feeding structure of the utility model;

[0021] Figure 2 This is an internal structural diagram of a rear mold slider glue feeding structure of the utility model;

[0022] Figure 3 This is an internal structural diagram of a rear mold slider glue feeding structure of the utility model;

[0023] Figure 4 This is a three-dimensional diagram of the ejection structure of the rear mold slider glue feeding structure of the utility model;

[0024] Figure 5 This is a side view of the ejection structure of the rear mold slider glue feeding structure of the utility model;

[0025] Figure 6 This is a cross-sectional view of the top material structure of the rear mold slider glue feeding structure of the utility model;

[0026] The components in the accompanying drawings are marked as follows: 1. Support block; 2. Slider; 21. Concave block; 22. Protrusion; 23. First plug hole; 24. Second plug hole; 3. Mold core; 31. Main body; 32. Mounting position; 4. Injection molding structure; 41. Injection molding channel; 42. Injection molding port; 43. Ejector position; 5. Ejector pin structure; 51. First ejector pin; 52. Second ejector pin; 53. Third ejector pin; 6. Finished product. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1 to 6, provides a rear mold slider glue feeding structure, including a slider 2, a mold core 3, an injection molding structure 4 and an ejector pin structure 5, the multiple sliders 2 are inserted into the peripheral end of the mold core 3, and the sliders 2 on both sides of the mold core 3 can be opened and closed under the drive of specific equipment, the injection molding structure 4 is fixed on the slider 2, and the injection port 42 discharges the material in the mold core 3, and the ejector pin structure 5 can be inserted from the bottom and side ends of the mold core 3, and the ejector pin structure 5 includes a first ejector pin 51, a second ejector pin 52 and a third ejector pin 53; when injection molding, the sliders 2 on both sides are closed, and the injection hole is aligned with the mold core 3. After the injection molding is completed, the sliders 2 are separated, and the multiple ejection positions 43 at the bottom end of the injection molding structure 4 move to correspond to the first ejector pin 51 and the second ejector pin 52 respectively. The second ejector pin 52 moves upward to eject the injection molding structure 4, and the injection hole is forcibly separated from the finished product 6. The third ejector pin 53 is inserted at the side end to demold the finished product 6.

[0029] The slider 2 includes a concave block 21 and a convex block 22. The concave block 21 is provided with a first socket 23, and the convex block 22 is provided with a second socket 24. The convex block 22 can be inserted into the peripheral end of the mold core 3. The slider 2 includes a support block 1, which passes through the first socket 23 and is fixed to the slider 2. The support block 1 is fixed to a specific device. The injection port 42 is inserted into the second socket 24, which connects to the cavity of the injection molded product.

[0030] The injection molding structure 4 includes an injection channel 41, the end of which is connected to an injection port 42. A push-up position 43 is provided at the bottom end of the end surface where the injection channel 41 and the injection port 42 are connected. There may be multiple injection ports 42, each of which is provided with a push-up position 43 and a corresponding second ejector pin 52. The bottom surface of the injection channel 41 is higher than the top surface of the mold core 3. When the first ejector pin 51 and the second ejector pin 52 rise, the first ejector pin 51 and the second ejector pin 52 simultaneously contact the bottom surface of the injection channel 41 and the push-up position 43, respectively. The bottom end of the first ejector pin 51 and the bottom end of the second ejector pin 52 are both fixed to the top plate. The top end of the first ejector pin 51 is higher than the top end of the second ejector pin 52, ensuring that the first ejector pin 51 and the second ejector pin 52 simultaneously contact the bottom surface of the injection channel 41 and the push-up position 43, respectively, when the top plate rises. The mold core 3 is provided with a corresponding insertion hole for the ejector structure 5.

[0031] The mold core 3 has a cavity for the injection molded product 6 in its main body 31. A mounting position 32 is provided next to the cavity for the injection molded product 6, and a module for the plastic product 6 is fixed to the mounting position 32. A top plate is fixed to the bottom of the ejector structure 5, which provides power for the ejector structure 5 to move.

[0032] The support block 1 is clamped in the first socket 23 of the slider 2. The slider 2 is divided into a concave block 21 and a convex block 22. The first socket 23 is provided on the concave block 21. The convex block 22 is provided with a second socket 24. The support block 1 is fixed to a specific moving device. The moving device can control the opening and closing of the sliders 2 on both sides. When the sliders 2 on both sides are closed, the convex block 22 can be inserted into the mold core 3. An injection structure 4 is also fixed on the second socket 24. When the sliders 2 on both sides are closed, the injection port 42 of the injection structure 4 is aligned with the mold cavity of the mold core 3. The injection port 42 is connected to the injection In the molding channel 41, a main molding channel 41 is connected to a plurality of molding ports 42. During the molding process, the material flows from the molding channel 41 to the molding ports 42 and is poured into the mold cavity from the molding ports 42. After the molding process is completed, the sliders 2 on both sides are separated, and the molding ports 42 are separated from the finished product 6. A plurality of ejection positions 43 are provided at the bottom of the molding channel 41. The ejection positions 43 are aligned with the second ejector pin 52. The first ejector pin 51 and the second ejector pin 52 rise to eject the molding channel 41. The third ejector pin 53 then ejects the finished product 6 from the side end to complete the demolding of the finished product 6.

[0033] The utility model provides a rear mold slider glue feeding structure, an injection channel 41 is fixed to a slider 2, and the injection channel 41 can be moved together with the slider 2. A top position 43 is provided at the bottom end of the injection channel 41, and an injection port 42 is provided at the injection port. When injecting, the slider 2 moves the injection port 42 to the injection cavity port, and the slider 2 is plugged into the mold core 3. After the injection is completed, one side of the slider 2 drives the injection channel 41 to separate from the finished product 6, and the top position 43 at the bottom of the injection channel 41 is aligned with the second ejector pin 52. The first ejector pin 51 corresponds to the injection channel 41 , and the first ejector pin 51 and the second ejector pin 52 rise upward at the same time. The first ejector pin 51 and the second ejector pin 52 synchronously eject the injection structure 4 upward, and the third ejector pin 53 passes through the mold core 3 to demold the finished product 6. The integrity of the finished product 6 is protected by moving the injection molding structure 4. The injection molding structure 4 is integrated with the slider 2. The slider 2 drives the injection molding structure 4 to move and align with the ejector pins to complete the ejection action. The utility model has the characteristics of high yield of the finished product 6 and high production efficiency.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rear mold slider glue feeding structure, comprising a support block (1), a slider (2), a mold core (3), an injection molding structure (4) and an ejector pin structure (5), characterized in that: A plurality of the sliders (2) are plugged into the peripheral ends of the mold core (3); a first plug hole (23) is provided on the slider (2); the support block (1) is plugged into the first plug hole (23) and fixed relative to the slider (2); a moving device is fixed on the support block (1); the support block (1) is driven to move by the moving device to control the sliders (2) located on both sides of the mold core (3) to open and close with each other; The injection molding structure (4) is fixed on the slider (2), and the injection molding structure (4) includes an injection molding channel (41), an injection molding port (42) and a plurality of ejection positions (43). The discharge of the injection molding port (42) is located in the mold core (3). The ejector pin structure (5) can be inserted from the bottom end and the side end of the mold core (3). The ejector pin structure (5) includes a first ejector pin (51), a second ejector pin (52) and a third ejector pin (53). During injection molding, the sliders (2) on both sides are closed, and the injection port (42) is aligned with the mold core (3). After injection molding is completed, the sliders (2) on both sides are separated from each other, so that the injection port (42) is forcibly separated from the finished product (6). The multiple ejection positions (43) at the bottom end of the injection structure (4) and the injection channel (41) also move with the sliders (2) to positions corresponding to the second ejector (52) and the first ejector (51), respectively. The first ejector (51) and the second ejector (52) move upward to eject the injection structure (4), and the third ejector (53) is inserted into the side end of the mold core (3) to demould the finished product (6).

2. The rear mold slider glue feeding structure according to claim 1, characterized in that: The slider (2) comprises a concave block (21) and a convex block (22); the first insertion hole (23) is provided on the concave block (21); the convex block (22) is provided with a second insertion hole (24); and the convex block (22) is plugged into the peripheral end of the mold core (3).

3. The rear mold slider glue feeding structure according to claim 2, characterized in that: The injection port (42) is inserted into the second insertion hole (24), and the second insertion hole (24) is connected to the cavity of the injection-molded product (6).

4. The rear mold slider glue feeding structure according to claim 1, characterized in that: The injection channel (41) is connected to the injection port (42), and the top position (43) is arranged at the bottom end of the end surface where the injection channel (41) is connected to the injection port (42).

5. The glue feeding structure of the rear mold slider according to claim 4, characterized in that: The bottom surface of the injection channel (41) is higher than the top surface of the mold core (3). When the first ejector pin (51) and the second ejector pin (52) rise, the first ejector pin (51) and the second ejector pin (52) contact the bottom surface of the injection channel (41) and the ejection position (43) respectively at the same time.

6. The rear mold slider glue feeding structure according to claim 5, characterized in that: The mold core (3) is provided with a socket corresponding to the ejector pin structure (5).

7. The glue feeding structure of the rear mold slider according to claim 6, characterized in that: There are multiple injection ports (42), each of which is provided with an ejector position (43) and a corresponding first ejector pin (51).

8. The rear mold slider glue feeding structure according to claim 1, characterized in that: The mold core (3) is provided with a mounting position (32) beside the cavity of the injection molded finished product (6), and a module for the plastic finished product (6) is fixed at the mounting position (32).

9. The rear mold slider glue feeding structure according to claim 1, characterized in that: A top plate is fixed to the bottom of the ejector structure (5), and the top plate provides power for the ejector structure (5) to move.

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