Sliding block core-pulling structure of mold

By using a micro-motor driven slider core-pulling structure and an electric push rod design, the problem of manual operation required by existing slider core-pulling structures has been solved, realizing automated core pulling and convenient mold component replacement, thus improving efficiency and convenience.

CN224130353UActive Publication Date: 2026-04-17NANTONG JINGLEI PLASTIC MOULD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG JINGLEI PLASTIC MOULD CO LTD
Filing Date
2025-04-30
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing slider core-pulling structure requires manual operation, resulting in high labor intensity and low core-pulling efficiency.

Method used

The micro-motor driven slider core-pulling structure, combined with electric push rod and positioning pin design, enables automated core pulling and rapid assembly and disassembly of mold components.

Benefits of technology

This improves the efficiency and convenience of core pulling in the slider core pulling structure, and simplifies the replacement and maintenance process of the mold head and the pouring head.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224130353U_ABST
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Abstract

The utility model discloses a sliding block core-pulling structure of a die, which comprises a lower die plate, supporting seats are arranged on two sides of the top end of the lower die plate, a lower die is fixed at the top ends of the two supporting seats, an upper die is arranged above the lower die, the bottom end of the upper die is contacted with the top end of the lower die, and an upper die plate is fixed at the top end of the upper die. An upper mold cavity is formed in the upper mold, a lower mold cavity is formed in the lower mold, the top end of the lower mold cavity communicates with the bottom end of the upper mold cavity, side supporting frames are connected to the outer walls of the two sides of the supporting base in a bolted mode, a base plate is installed at the top ends of the side supporting frames, a U-shaped limiting frame is connected to one side of the top end of the base plate in a bolted mode, and a rectangular sliding block is slidably connected to one side of the interior of the U-shaped limiting frame. A micro motor is installed on one side of the bottom end of the base plate. According to the sliding block core-pulling structure, the core-pulling efficiency is improved when the sliding block core-pulling structure is used, the convenience is also improved when the sliding block core-pulling structure is used, and the purpose that the die head and the pouring head are easy to replace and maintain is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, specifically to a slider core-pulling structure for a mold. Background Technology

[0002] In mold forming processes, traditional mold designs often struggle to demold products with features such as lateral holes, concave structures, or complex curved surfaces. To address this issue, slider core-pulling structures have emerged. However, existing slider core-pulling structures have many shortcomings. Therefore, developing a slider core-pulling structure for molds is of significant practical importance.

[0003] Referring to the slider core-pulling structure of a mold with reference announcement number CN215550606U, it includes a base plate, a support rod fixedly connected to the base plate, a lower mold fixedly connected to the support rod, an air duct and an air outlet on the lower mold, an upper mold in contact with the lower mold, an injection hole on the upper mold, a mold core slidably connected inside the lower mold, a protrusion fixedly connected to the mold core, a connecting block slidably connected to the protrusion, the connecting block rotatably connected to the mold core, and the connecting block in contact with the lower mold. This slider core-pulling structure uses a threaded connection between the connecting block and the connecting seat. The rotation of the connecting block allows it to move horizontally, thus achieving the function of horizontally moving the mold core. This can be achieved simply by rotating the rotating ring, making core-pulling work of the mold convenient and quick. As can be seen from the above, although this slider core-pulling structure can be well applied, it usually requires manual operation, which increases the labor intensity of personnel and the core-pulling efficiency is generally low, and further improvement is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a slider core-pulling structure for a mold, so as to solve the problem that although the slider core-pulling structure proposed in the background art can be well applied, it usually requires manual operation by personnel, which increases the labor intensity of personnel and the core-pulling efficiency is generally low.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slider core-pulling structure for a mold, including a lower template, with support seats on both sides of the top of the lower template, a lower mold fixed to the top of the two support seats, an upper mold above the lower mold, the bottom of the upper mold contacting the top of the lower mold, an upper template fixed to the top of the upper mold, an upper mold cavity inside the upper mold, a lower mold cavity inside the lower mold, the top of the lower mold cavity communicating with the bottom of the upper mold cavity, and side supports bolted to the outer walls on both sides of the support seats. A base plate is mounted on the top of the side support frame. A U-shaped limiting frame is bolted to one side of the top of the base plate. A rectangular slider is slidably connected to one side inside the U-shaped limiting frame. A micro motor is mounted on one side of the bottom of the base plate. A rotating shaft is mounted on the output end of the micro motor via a coupling. The top of the rotating shaft passes through the base plate and is mounted with a drive arm. A linkage arm is rotatably mounted on the end of the drive arm away from the rotating shaft. The end of the linkage arm away from the drive arm is rotatably connected to the top of the rectangular slider. Mold cores are provided on both sides inside the lower mold cavity. One end of the mold core extends to the outside of the lower mold.

[0006] Preferably, a mold head is installed at the center of the top of the upper mold plate. The bottom end of the mold head extends into the interior of the upper mold plate and is provided with a pouring head. The bottom end of the pouring head extends into the interior of the upper mold and is connected to the top of the upper mold cavity. The pouring head is provided so that hot melt material can be injected into the upper mold cavity.

[0007] Preferably, locating pins are installed on both sides of the top of the mold head. The bottom end of the locating pin passes through the mold head and is threadedly connected to the top of the upper template. The locating pins are used to bolt the mold head to the top of the upper template.

[0008] Preferably, a lifting plate is movably installed at the bottom of the lower mold cavity, and lifting rods are provided on both sides of the bottom end of the lifting plate. The bottom ends of the lifting rods extend to the bottom of the lower mold. The lifting rods and the lifting plate are used to assist in lifting the molded part that has been cooled and formed in the lower mold cavity.

[0009] Preferably, an electric push rod is installed at the center of the top of the lower template, and a lifting plate is installed at the top of the electric push rod. The top of the lifting plate is connected to the bottom of the lifting rod. The electric push rod is used to drive the lifting plate to perform lifting and lowering operations.

[0010] Preferably, a connecting rod is installed at the top of the rectangular slider on one side of the linkage arm. The end of the connecting rod away from the rectangular slider is connected to one end of the mold core. The connecting rod is provided to connect the mold core and the rectangular slider.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the slider core-pulling structure of the mold not only improves the core-pulling efficiency when using the slider core-pulling structure, but also improves the convenience when using the slider core-pulling structure, and achieves the purpose of easy replacement and maintenance of the mold head and the pouring head.

[0012] (1) The micro motor drives the drive arm to rotate 180 degrees via the rotating shaft, so that the drive arm drives the rectangular slider to slide inside the U-shaped limit frame via the linkage arm, so that the rectangular slider drives the mold core to move to the outside of the lower mold cavity via the connecting rod, so as to achieve the purpose of quickly pulling the mold core electrically, thereby improving the core pulling efficiency when using the slider core pulling structure.

[0013] (2) The lifting plate is driven to move upward by the electric push rod, so that the lifting plate is driven to move upward by the lifting rod, so that the mold part after cooling and forming inside the lower mold cavity is slightly lifted by the lifting plate, thereby assisting in lifting and unloading the mold part, thus improving the convenience of using the slider core pulling structure.

[0014] (3) By twisting the positioning pin, the lower end of the positioning pin is twisted out to the outside of the upper template. Then, the mold head is pulled upward to remove the mold head from the outside of the upper template and the pouring head from the outside of the upper mold. This allows for the disassembly and cleaning of the mold head and the pouring head, thus facilitating the replacement and maintenance of the mold head and the pouring head. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This is a top view of the upper template structure of this utility model;

[0017] Figure 3 This is a top view of the rectangular slider structure of this utility model;

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Lower mold plate; 2. Support base; 3. Lower mold; 301. Lower mold cavity; 4. Upper mold; 401. Upper mold cavity; 5. Upper mold plate; 6. Electric push rod; 7. Lifting plate; 8. Elevating rod; 9. Elevating plate; 10. Mold core; 11. Side support frame; 12. Base plate; 13. Micro motor; 14. Rotating shaft; 15. Drive arm; 16. Linkage arm; 17. Rectangular slider; 18. Connecting rod; 19. U-shaped limiting frame; 20. Mold head; 21. Casting head; 22. Positioning pin. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 An embodiment of this utility model provides a slider core-pulling structure for a mold, including a lower template 1, with support seats 2 on both sides of the top of the lower template 1, a lower mold 3 fixed to the top of the two support seats 2, an upper mold 4 above the lower mold 3, the bottom of the upper mold 4 touching the top of the lower mold 3, an upper template 5 fixed to the top of the upper mold 4, a mold head 20 installed at the center of the top of the upper template 5, the bottom of the mold head 20 extending into the interior of the upper template 5 and having a pouring head 21, the bottom of the pouring head 21 extending into the interior of the upper mold 4, and the bottom of the pouring head 21 communicating with the top of the upper mold cavity 401;

[0022] In use, the pouring head 21 is designed to inject hot melt material into the upper mold cavity 401;

[0023] Positioning pins 22 are installed on both sides of the top of the mold head 20. The bottom end of the positioning pin 22 passes through the mold head 20 and is threadedly connected to the top of the upper template 5.

[0024] In use, the positioning pin 22 is used to bolt the mold head 20 to the top of the upper template 5;

[0025] The upper mold 4 has an upper mold cavity 401 inside, and the lower mold 3 has a lower mold cavity 301 inside. The top of the lower mold cavity 301 is connected to the bottom of the upper mold cavity 401. A lifting plate 9 is movably installed at the bottom of the lower mold cavity 301. Lifting rods 8 are provided on both sides of the bottom of the lifting plate 9. The bottom of the lifting rods 8 extends to the bottom of the lower mold 3.

[0026] In use, the lifting rod 8 and the lifting plate 9 are set up to assist in lifting the molded part that has been cooled and formed in the lower mold cavity 301.

[0027] An electric push rod 6 is installed at the center of the top of the lower template 1. A lifting plate 7 is installed at the top of the electric push rod 6. The top of the lifting plate 7 is connected to the bottom of the lifting rod 8.

[0028] In use, the electric push rod 6 is used to drive the lifting plate 7 to perform lifting and lowering operations.

[0029] Side support frames 11 are bolted to the outer walls on both sides of the support base 2. A base plate 12 is installed at the top of the side support frame 11. A U-shaped limiting frame 19 is bolted to one side of the top of the base plate 12. A rectangular slider 17 is slidably connected to one side inside the U-shaped limiting frame 19. A micro motor 13 is installed on one side of the bottom of the base plate 12. A rotating shaft 14 is installed at the output end of the micro motor 13 through a coupling. The top of the rotating shaft 14 passes through the base plate 12 and is equipped with a drive arm 15. A linkage arm 16 is rotatably installed at the end of the drive arm 15 away from the rotating shaft 14. The end of the linkage arm 16 away from the drive arm 15 is rotatably connected to the top of the rectangular slider 17. A connecting rod 18 is installed at the top of the rectangular slider 17 on one side of the linkage arm 16. The end of the connecting rod 18 away from the rectangular slider 17 is connected to one end of the mold core 10.

[0030] In use, the connecting rod 18 is used to connect the mold core 10 and the rectangular slider 17.

[0031] Both sides of the lower mold cavity 301 are provided with mold cores 10, and one end of the mold core 10 extends to the outside of the lower mold 3.

[0032] In this embodiment, the micro motor 13 first drives the drive arm 15 to rotate 180 degrees via the rotating shaft 14. This causes the drive arm 15 to drive the rectangular slider 17 to slide inside the U-shaped limiting frame 19 via the linkage arm 16. This allows the rectangular slider 17 to move the mold core 10 to the outside of the lower mold cavity 301 via the connecting rod 18, enabling a fast, electric core-pulling operation on the mold core 10. Then, the electric push rod 6 drives the lifting plate 7 to move upwards. This causes the lifting plate 7 to drive the lifting plate 9 to move upwards via the lifting rod 8, allowing the lifting plate 9 to cool the inside of the lower mold cavity 301. The molded part is slightly lifted to assist in the lifting and unloading operation. Finally, by turning the positioning pin 22, the lower end of the positioning pin 22 is screwed out to the outside of the upper template 5. Then, the mold head 20 is pulled upward to remove the mold head 20 to the outside of the upper template 5 and the pouring head 21 to the outside of the upper mold 4, so as to perform disassembly and maintenance operations on the mold head 20 and the pouring head 21. In addition, this slider core pulling structure is electrically connected to an external terminal system so that the terminal system can control the slider core pulling structure to complete the use of the slider core pulling structure.

Claims

1. A slide core structure of a mold characterized by comprising: The system includes a lower template (1), with support seats (2) on both sides of the top of the lower template (1). A lower mold (3) is fixed to the top of the two support seats (2). An upper mold (4) is provided above the lower mold (3). The bottom end of the upper mold (4) touches the top end of the lower mold (3). An upper template (5) is fixed to the top end of the upper mold (4). An upper mold cavity (401) is provided inside the upper mold (4). A lower mold cavity (301) is provided inside the lower mold (3). The top end of the lower mold cavity (301) is connected to the bottom end of the upper mold cavity (401). Side supports (11) are bolted to the outer walls on both sides of the support seats (2). A base plate (12) is installed on the top end of the side supports (11). A U-shaped limiting frame (19) is bolted to one side of the end. A rectangular slider (17) is slidably connected to one side inside the U-shaped limiting frame (19). A micro motor (13) is installed on one side of the bottom end of the substrate (12). A rotating shaft (14) is installed at the output end of the micro motor (13) through a coupling. The top end of the rotating shaft (14) passes through the substrate (12) and is equipped with a drive arm (15). A linkage arm (16) is rotatably installed at the end of the drive arm (15) away from the rotating shaft (14). The end of the linkage arm (16) away from the drive arm (15) is rotatably connected to the top end of the rectangular slider (17). Mold cores (10) are provided on both sides inside the lower mold cavity (301). One end of the mold core (10) extends to the outside of the lower mold (3).

2. The slider core-pulling structure of a mold according to claim 1, wherein: A mold head (20) is installed at the center of the top of the upper template (5). The bottom end of the mold head (20) extends into the interior of the upper template (5) and is provided with a pouring head (21). The bottom end of the pouring head (21) extends into the interior of the upper mold (4). The bottom end of the pouring head (21) is connected to the top of the upper mold cavity (401).

3. The slider core-pulling structure of a mold according to claim 2, wherein: Positioning pins (22) are installed on both sides of the top of the mold head (20). The bottom end of the positioning pin (22) passes through the mold head (20) and is threadedly connected to the top of the upper template (5).

4. The slider core-pulling structure of a mold according to claim 1, wherein: A lifting plate (9) is movably installed at the bottom of the lower mold cavity (301). Lifting rods (8) are provided on both sides of the bottom end of the lifting plate (9). The bottom end of the lifting rods (8) extends to the bottom of the lower mold (3).

5. The slider core-pulling structure of a mold according to claim 4, wherein: An electric push rod (6) is installed at the center of the top of the lower template (1), and a lifting plate (7) is installed at the top of the electric push rod (6). The top of the lifting plate (7) is connected to the bottom of the lifting rod (8).

6. The slider core-pulling structure of a mold according to claim 1, wherein: A connecting rod (18) is installed at the top of the rectangular slider (17) on one side of the linkage arm (16), and the end of the connecting rod (18) away from the rectangular slider (17) is connected to one end of the mold core (10).

Citation Information

Patent Citations

  • Sliding block core-pulling structure of mold

    CN215550606U