A type of injection mold for automotive front door guide rail slider
By employing guide pillars and guide sleeves in the injection mold of the automotive front door guide rail slider, and combining them with the moving mold, and a side core-pulling mechanism, the problems of complex mold structure and high cost of existing molds have been solved, enabling reliable automated stripping and efficient injection molding of multiple products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGHAI COUNTY HONGYUAN MOLDING CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
When existing automotive front door guide rail slider injection molds are designed as multi-cavity molds, multiple side core-pulling components are required, resulting in complex mold structures and increased costs.
Design an injection mold for a car front door guide rail slider. The mold adopts a structure in which guide pillars and guide sleeves are combined with the moving mold. The sliding fixing blocks at both ends of the core, together with the slider seat and the inclined ejector, form a side core pulling mechanism to realize the one-time unloading of multiple products.
It simplifies the mold structure, reduces costs, and enables reliable automated stripping of multiple products, thereby improving injection molding efficiency.
Smart Images

Figure CN224275983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for a car front door guide rail slider. Background Technology
[0002] The operation of raising and lowering car windows relies on a device called a car window regulator, which can convert rotational force into vertical motion force. Currently, there are three main types of window regulators on the market: wire rope wheel type, cross arm type, and rack and pinion type.
[0003] In automotive parts, the plastic slider of the window regulator may seem like a small component, but it plays a crucial role in the window system. The plastic slider acts as a guide during the window raising and lowering process, ensuring that the window glass can move up and down smoothly along the predetermined track. At the same time, it also supports the weight of the glass, preventing it from shaking or deviating during movement.
[0004] Plastic slider injection molding requires injection molds. In order to improve the efficiency of injection molding, injection molds are designed with a multi-cavity structure. For plastic parts that require side core pulling, each injection molding cavity needs to be equipped with a side core pulling component, which increases the structure of the entire injection mold and increases the cost. Utility Model Content
[0005] This invention provides an injection mold for a car front door guide rail slider to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for a car front door guide rail slider, comprising a moving mold and a fixed mold, wherein guide sleeves are inlaid around the perimeter of the moving mold, and guide pillars are inlaid around the perimeter of the fixed mold, and the mold is closed with the moving mold through the guide pillars and guide sleeves;
[0007] The moving mold includes a lower fixed plate, a square iron, a male mold plate, and a core. The male mold plate is installed on the square iron, and the square iron is installed on the lower fixed plate. The core is embedded in the male mold plate, and fixed blocks are slidably connected to both ends of the core. Inserts are embedded in the inner end face of the fixed blocks, and the inserts slide in the core. Sliding blocks are slidably connected to both ends of the male mold plate, and the sliding blocks are connected to the fixed blocks. An inclined ejector is fitted on the sliding block, and the lower part of the inclined ejector is movably connected to the male mold plate. A lower top plate is installed on the lower fixed plate, and an upper top plate is installed on the lower top plate. A return spring and an ejector pin are respectively installed on the upper top plate, and the upper part of the ejector pin extends into the core.
[0008] Furthermore, the fixed mold includes an upper fixed plate, a stripper plate, a pusher spring, a mother mold plate, and a cavity. The stripper plate is installed on the upper fixed plate, the mother mold plate is fixedly connected to the stripper plate through the pusher spring, and the cavity is embedded in the mother mold plate.
[0009] Furthermore, a spring column is embedded in the template, and the top of the spring column abuts against the bottom surface of the slider seat.
[0010] Furthermore, the core is provided with a lower cooling channel, and the inlet and outlet of the lower cooling channel extend outward from the male template.
[0011] Furthermore, the reset spring is located between the upper top plate and the male template, and limit posts are installed around the upper top plate.
[0012] Furthermore, the cavity is provided with an upper cooling channel, and the inlet and outlet of the upper cooling channel extend outward from the mother template.
[0013] Furthermore, a gate is installed on the upper fixed plate, and the gate communicates with the runner in the mother mold, and the runner in the mother mold communicates with the cavity.
[0014] Compared with the prior art, this utility model provides an injection mold for a car front door guide rail slider, which has the following advantages:
[0015] This automotive front door guide rail slider injection mold has fixed blocks sliding at both ends of the core, with inserts embedded on the fixed blocks. Each insert corresponds to a molding cavity and is located at both ends of the core. The inserts, slider seats, and angled ejectors together form a side core-pulling mechanism. When the mold opens, the angled ejectors use the opening power to drive the slider seats to pull the entire inserts sideways. This allows for the removal of multiple products at once, making it economical, reliable, and easy to automate. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a breakdown diagram of the mold of this utility model;
[0018] Figure 3 This is an exploded view of the moving model of this utility model.
[0019] In the diagram: 1. Moving mold; 11. Lower fixed plate; 12. Square iron; 13. Male mold plate; 14. Core; 15. Fixing block; 16. Insert; 17. Slider seat; 18. Angled ejector; 19. Lower ejector plate; 110. Upper ejector plate; 111. Return spring; 112. Ejector pin; 113. Spring pillar; 114. Lower cooling channel; 115. Limiting pillar; 2. Fixed mold; 21. Upper fixed plate; 22. Stripper plate; 23. Push spring; 24. Female mold plate; 25. Cavity; 26. Upper cooling channel; 27. Gate; 3. Guide sleeve; 4. Guide pillar. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-3 This utility model discloses an injection mold for a car front door guide rail slider, including a moving mold 1 and a fixed mold 2. The moving mold 1 is inlaid with guide sleeves 3 around its perimeter, and the fixed mold 2 is inlaid with guide pillars 4 around its perimeter. The mold 2 is closed with the moving mold 1 through the guide pillars 4 and guide sleeves 3. Fixed blocks 15 slide at both ends of the core 14, and inserts 16 are inlaid on the fixed blocks 15. Each insert 16 corresponds to a molding cavity and is located at both ends of the core 14. The inserts 16, the slider seat 17, and the inclined ejector 18 together form a side core pulling mechanism. When the mold is opened, the inclined ejector 18 drives the slider seat 17 with the help of the mold opening power to move the entire insert 16 to pull the core sideways. Multiple products can be unloaded at one time. It is economical, reliable, and easy to automate.
[0022] The moving mold 1 includes a lower fixed plate 11, a square iron 12, a male template 13, and a core 14. The male template 13 is mounted on the square iron 12, and the square iron 12 is mounted on the lower fixed plate 11. The core 14 is embedded in the male template 13, and the two ends of the core 14 are slidably connected to fixed blocks 15. The inner end face of the fixed block 15 is inlaid with an insert 16, and the insert 16 slides in the core 14. The two ends of the male template 13 are slidably connected to slider seats 17, and the slider seats 17 are connected to the fixed blocks 15. An inclined ejector 18 is fitted on the slider seat 17, and the lower part of the inclined ejector 18 is movably sleeved with the male template 13. A lower top plate 19 is mounted on the lower fixed plate 11, and an upper top plate 110 is mounted on the lower top plate 19. A return spring 111 and an ejector pin 112 are respectively mounted on the upper top plate 110, and the upper part of the ejector pin 112 extends into the core 14.
[0023] The fixed mold 2 includes an upper fixed plate 21, a stripper plate 22, a pusher spring 23, a mother mold 24, and a cavity 25. The stripper plate 22 is installed on the upper fixed plate 21. The mother mold 24 is fixedly connected to the stripper plate 22 through the pusher spring 23. The cavity 25 is embedded in the mother mold 24.
[0024] Specifically, a spring post 113 is embedded in the template 13, and the top of the spring post 113 abuts against the bottom surface of the slider seat 17.
[0025] In this embodiment, the spring post 113 is used to prevent the slider seat 17 from retracting due to the pressure of the molten plastic during the injection molding process.
[0026] Specifically, the core 14 is provided with a lower cooling channel 114, and the inlet and outlet of the lower cooling channel 114 extend outward from the template 13.
[0027] In this embodiment, the main function of the lower cooling channel 114 is to remove heat from the mold through a circulating medium (such as cooling water), maintain or reduce the mold temperature, thereby ensuring that the plastic can be successfully molded in the mold.
[0028] Specifically, the reset spring 111 is located between the upper top plate 110 and the male template 13, and limit posts 115 are installed around the upper top plate 110.
[0029] In this embodiment, the main function of the return spring 111 is to enable the ejector pin 112 to quickly return to its initial position after completing the ejection action, ensuring that the mold can perform the next injection operation. The main function of the limit post 115 is to position and limit the movement range of each component of the mold, ensuring that the mold can remain stable during the injection process, thereby improving the quality and precision of the injection molded products.
[0030] Specifically, the cavity 25 is provided with an upper cooling channel 26, and the inlet and outlet of the upper cooling channel 26 extend outward from the mother template 24.
[0031] In this embodiment, the function of the upper cooling channel 26 is to remove heat from the mold through a circulating medium (such as cooling water), maintain or reduce the mold temperature, thereby ensuring that the plastic can be successfully molded in the mold.
[0032] Specifically, a gate 27 is installed on the upper fixing plate 21, and the gate 27 communicates with the runner in the mother template 24, and the runner in the mother template 24 communicates with the cavity 25.
[0033] In this implementation scheme, the core function of gate 27 is to control melt flow, maintain holding pressure, optimize product quality, and ensure efficient separation of the runner and the product.
[0034] In use, fixed blocks 15 slide at both ends of the core 14, and inserts 16 are embedded on the fixed blocks 15. Each insert 16 corresponds to a molding cavity and is located at both ends of the core 14. The inserts 16, together with the slider seat 17 and the inclined ejector 18, form a side core pulling mechanism. When the mold is opened, the inclined ejector 18 drives the slider seat 17 with the help of the mold opening power to pull the entire insert 16 sideways. Multiple products can be unloaded at one time. It is economical, reliable, and easy to automate.
[0035] In summary, the injection mold for the car front door guide rail slider has fixed blocks 15 sliding at both ends of the core 14. Inserts 16 are embedded on the fixed blocks 15, and each insert 16 corresponds to a molding cavity, which is located at both ends of the core 14. The inserts 16, the slider seat 17, and the inclined ejector 18 together form a side core-pulling mechanism. When the mold is opened, the inclined ejector 18 drives the slider seat 17 with the help of the mold opening power to move the entire insert 16 to pull the core sideways. Multiple products can be unloaded at one time. It is economical, reliable, and easy to automate.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An injection mold for a car front door guide rail slider, comprising a moving mold (1) and a fixed mold (2), characterized in that: The moving mold (1) is inlaid with guide sleeves (3) around its perimeter, and the fixed mold (2) is inlaid with guide pillars (4) around its perimeter, and the moving mold (1) is closed by the guide pillars (4) and the guide sleeves (3); The moving mold (1) includes a lower fixed plate (11), a square iron (12), a male template (13), and a core (14). The male template (13) is mounted on the square iron (12), and the square iron (12) is mounted on the lower fixed plate (11). The core (14) is embedded in the male template (13), and fixed blocks (15) are slidably connected to both ends of the core (14). An insert (16) is embedded in the inner end face of the fixed block (15), and the insert (16) slides in the core (14). The two ends of the male template (13) are connected to the male template (14). The end is slidably connected to a slider seat (17), and the slider seat (17) is connected to a fixed block (15). An inclined top (18) is fitted on the slider seat (17), and the lower part of the inclined top (18) is movably connected to the male template (13). A lower top plate (19) is installed on the lower fixed plate (11), and an upper top plate (110) is installed on the lower top plate (19). A return spring (111) and a ejector pin (112) are respectively installed on the upper top plate (110), and the upper part of the ejector pin (112) extends into the core (14).
2. The injection mold for a car front door guide rail slider according to claim 1, characterized in that: The fixed mold (2) includes an upper fixed plate (21), a stripper plate (22), a pusher spring (23), a mother mold (24), and a cavity (25). The stripper plate (22) is installed on the upper fixed plate (21). The mother mold (24) is fixedly connected to the stripper plate (22) through the pusher spring (23). The cavity (25) is embedded in the mother mold (24).
3. The injection mold for a car front door guide rail slider according to claim 1, characterized in that: A spring column (113) is embedded in the template (13), and the top of the spring column (113) abuts against the bottom surface of the slider seat (17).
4. The injection mold for a car front door guide rail slider according to claim 1, characterized in that: The core (14) is provided with a lower cooling channel (114), and the inlet and outlet of the lower cooling channel (114) extend outward from the template (13).
5. The injection mold for a car front door guide rail slider according to claim 1, characterized in that: The reset spring (111) is located between the upper top plate (110) and the male template (13), and limit posts (115) are installed around the upper top plate (110).
6. The injection mold for a car front door guide rail slider according to claim 2, characterized in that: The cavity (25) is provided with an upper cooling channel (26), and the inlet and outlet of the upper cooling channel (26) extend outward from the mother template (24).
7. The injection mold for a car front door guide rail slider according to claim 2, characterized in that: The upper fixing plate (21) is equipped with a gate (27), and the gate (27) is connected to the runner in the mother template (24), and the runner in the mother template (24) is connected to the cavity (25).