Glass lifter wire wheel injection mold
By designing the injection mold for the glass lifter's screw wheel and adopting a return spring and a slanted ejector mechanism, the problem of the buckle not being parallel to the mold opening direction was solved, realizing automatic positioning and rapid separation of the workpiece, thus improving production efficiency and mold life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGHAI COUNTY HONGYUAN MOLDING CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-08
AI Technical Summary
When manufacturing special products, existing injection molds have misaligned locking and mold opening directions, which prevents smooth demolding and affects production efficiency and product quality.
Design a glass lifter screw wheel injection mold, which uses a lower mold and an upper mold to close the mold through a guide sleeve and a guide post, combined with a return spring and a slanted ejector mechanism to achieve automatic positioning and rapid separation of the workpiece, and uses an ejector pin mechanism to achieve automatic ejection.
It enables rapid separation of workpieces and automated production, improves production efficiency, reduces operational difficulty and mold wear, and extends service life.
Smart Images

Figure CN224210448U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for a glass lifter screw wheel. 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] The working principle of a wire rope wheel lift is relatively simple. It uses the force generated by the rotation of the wire rope to drive the glass to move up and down. In the wire rope wheel lift, the wire winding wheel plays a crucial role. It is mainly responsible for winding and releasing the wire, thereby controlling the raising and lowering of the car window or door.
[0004] Injection molding is a process in which molten material in an injection molding machine is injected into the mold cavity through the runner and gate of the injection mold, and then cooled and solidified to obtain various injection molded products. In order to meet the use and assembly requirements of the product, the wire winding wheel is designed with buckles in different positions. In mold manufacturing, for the product with buckles parallel to the mold opening direction, normal mold opening and ejection can be smoothly demolded. However, when encountering special products, the buckles are not parallel to the mold opening direction, but perpendicular to the mold opening direction, normal mold opening and ejection cannot meet the requirements. Utility Model Content
[0005] This invention provides a glass lifter screw wheel injection mold to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a glass lifter screw wheel injection mold, comprising a lower mold and an upper mold, wherein guide pillars are inlaid around the lower mold and guide sleeves are inlaid around the upper mold, and the upper mold is closed with the lower mold through the guide sleeves and guide pillars;
[0007] The lower mold includes a lower fixed plate, a square iron, a male template, and a split core. The square iron is installed on the lower fixed plate, the male template is installed on the mold base, and wear-resistant base plates and wear-resistant sliders are embedded at both ends of the male template. The split core is slidably installed at both ends of the male template through the wear-resistant sliders. The bottom of the split core is provided with a ball pit. A spring column is embedded in the male template, and the top of the spring column passes through the wear-resistant base plate and is inserted into the ball pit. The two ends of the split core are embedded with inclined ejectors, and return springs are fitted on the inclined ejectors. The lower part of the inclined ejectors is movably inserted into the male template. A lower ejector plate is installed on the lower fixed plate, and an upper ejector plate is installed on the lower ejector plate. An ejector pin is embedded on the upper ejector plate, and a return spring is installed on the upper ejector plate. The upper part of the ejector pin extends into the split core.
[0008] Furthermore, the upper mold includes an upper fixed plate, a heat insulation plate, a hot runner plate, a mother mold plate, and a cavity. The heat insulation plate is installed on the upper fixed plate, the hot runner plate is embedded in the heat insulation plate, and an electric heating wire is embedded in the hot runner plate. The mother mold plate is installed on the heat insulation plate, the cavity is embedded in the mother mold plate, and a hot nozzle is connected to the bottom of the hot runner plate, with the hot nozzle extending into the cavity.
[0009] Furthermore, a wear-resistant pressure strip is installed on the male template, and the wear-resistant pressure strip is pressed against the edge of the split core.
[0010] Furthermore, a wear-resistant side plate is installed on the split core, and the wear-resistant side plate is flush with the outer end face of the split core.
[0011] Furthermore, the lower fixing plate has a hole in the middle, and the upper ejector plate is equipped with a limit post.
[0012] Furthermore, a gate seat is embedded in the middle of the upper fixing plate, and the lower part of the gate seat is connected to the inlet of the hot runner plate.
[0013] Furthermore, an electrical connection element is installed on the outer side of the heat insulation plate, and the electrical connection element is electrically connected to the electric heating wire.
[0014] Furthermore, the cavity is provided with a cooling channel, which extends outward from the mother template.
[0015] Furthermore, a slanted guide post seat is installed on the mother template, and the top of the slanted top extends into the slanted guide post seat.
[0016] Compared with the prior art, this utility model provides a glass lifter screw wheel injection mold, which has the following beneficial effects:
[0017] When the upper mold of this glass lifter screw wheel injection mold is pressed down, the position of the workpiece will rise accordingly until the return spring is compressed to the appropriate position. At this time, the mold locks the position of the workpiece and injection molding can be performed. When the mold is opened, the return spring will play a reset role, so that the inclined ejector can drive the split core to move laterally, thereby quickly separating it from the workpiece. Then, the ejector mechanism can automatically eject the workpiece out of the mold. It has the advantages of convenient operation, high production efficiency and easy automation production. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is an isometric view of the lower mold of this utility model;
[0020] Figure 3 This is an isometric drawing of the upper mold of this utility model;
[0021] Figure 4 This is a split view of the lower mold of this utility model;
[0022] Figure 5 This is a split view of the upper mold of this utility model.
[0023] In the diagram: 1. Lower mold; 11. Lower fixed plate; 12. Square iron; 13. Male mold plate; 14. Split core; 15. Wear-resistant base plate; 16. Wear-resistant slider; 17. Ball pit; 18. Spring pillar; 19. Angled ejector; 110. Return spring; 111. Lower ejector plate; 112. Upper ejector plate; 113. Ejector pin; 114. Return spring; 115. Wear-resistant pressure strip; 116. Wear-resistant side plate; 117. Hole; 118. Limiting post; 2. Upper mold; 21. Upper fixed plate; 22. Heat insulation plate; 23. Hot runner plate; 24. Female mold plate; 25. Cavity; 26. Electric heating wire; 27. Hot nozzle; 28. Sprue seat; 29. Electrical connection element; 210. Cooling channel; 211. Angled guide post seat; 3. Guide post; 4. Guide sleeve. Detailed Implementation
[0024] 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.
[0025] Please see Figures 1-5 This utility model discloses a glass lifter screw wheel injection mold, including a lower mold 1 and an upper mold 2. The lower mold 1 is inlaid with guide pillars 3 around its perimeter, and the upper mold 2 is inlaid with guide sleeves 4 around its perimeter. The upper mold 2 is closed with the lower mold 1 through the guide sleeves 4 and guide pillars 3. When the upper mold 2 is pressed down, the position of the workpiece will rise accordingly until the return spring 110 is compressed to the appropriate position. At this time, the mold locks the position of the workpiece and injection molding can be performed. When the mold is opened, the return spring 110 will play a reset role, so that the inclined ejector 19 can drive the split core 14 to move laterally, thereby quickly separating it from the workpiece. At this time, the workpiece can be automatically ejected from the mold through the ejector pin mechanism. It has the advantages of convenient operation, high production efficiency and easy realization of automated production.
[0026] The lower mold 1 includes a lower fixed plate 11, a square iron 12, a male template 13, and a split core 14. The square iron 12 is mounted on the lower fixed plate 11, and the male template 13 is mounted on the mold base. Both ends of the male template 13 are inlaid with wear-resistant base plates 15 and wear-resistant sliders 16. The split core 14 is slidably mounted on both ends of the male template 13 via the wear-resistant sliders 16. The bottom of the split core 14 is provided with a ball pit 17. A spring post 18 is embedded in the male template 13, and the top of the spring post 18 passes through the wear-resistant base plate 15. The base plate 15 is inserted into the ball pit 17. The two ends of the split core 14 are inlaid with inclined tops 19, and the inclined tops 19 are fitted with return springs 110. The lower part of the inclined tops 19 is movably inserted into the male template 13. The lower fixed plate 11 is equipped with a lower ejector plate 111, and the lower ejector plate 111 is equipped with an upper ejector plate 112. The upper ejector plate 112 is inlaid with a pin 113, and the upper ejector plate 112 is equipped with a return spring 114. The upper part of the pin 113 extends into the split core 14.
[0027] The upper mold 2 includes an upper fixed plate 21, a heat insulation plate 22, a hot runner plate 23, a mother mold 24, and a cavity 25. The heat insulation plate 22 is installed on the upper fixed plate 21. The hot runner plate 23 is embedded in the heat insulation plate 22, and an electric heating wire 26 is embedded in the hot runner plate 23. The mother mold 24 is installed on the heat insulation plate 22. The cavity 25 is embedded in the mother mold 24. A hot nozzle 27 is connected to the bottom of the hot runner plate 23, and the hot nozzle 27 extends into the cavity 25.
[0028] Specifically, a wear-resistant pressure strip 115 is installed on the male template 13, and the wear-resistant pressure strip 115 is pressed against the edge of the split core 14.
[0029] In this embodiment, the main function of the wear-resistant pressure strip 115 is to reduce the wear of large parts, extend the service life of the mold, and reduce the replacement cost. The wear-resistant pressure strip 115 is usually installed between parts that slide against each other in the mold. Due to its high hardness and good wear resistance, it can effectively reduce the wear of parts. Here, it is used to limit the split core 14. The wear-resistant pressure strip 115 and the split core 14 are in clearance fit.
[0030] Specifically, a wear-resistant side plate 116 is installed on the split core 14, and the wear-resistant side plate 116 is flush with the outer end face of the split core 14.
[0031] In this embodiment, the main function of the wear-resistant side plate 116 is to reduce the wear of large parts, extend the service life of the mold, and reduce replacement costs.
[0032] Specifically, the lower fixing plate 11 has a hole 117 in the middle, and the upper ejector plate 112 is equipped with a limit post 118.
[0033] In this embodiment, the hole 117 is a clearance structure to facilitate the connection between the lower fixing plate 11 and the ejector pin on the injection molding machine.
[0034] Specifically, a gate seat 28 is embedded in the middle of the upper fixing plate 21, and the lower part of the gate seat 28 is connected to the inlet of the hot runner plate 23.
[0035] In this implementation scheme, the sprue seat 28 serves as the interface component between the mold and the injection molding machine, acting as a transition channel for the molten material from the nozzle to the mold cavity. It is necessary to ensure stable material flow and minimize pressure loss.
[0036] Specifically, an electrical connection element 29 is installed on the outer side of the heat insulation plate 22, and the electrical connection element 29 is electrically connected to the electric heating wire 26.
[0037] In this embodiment, the main function of the electrical connection element 29 is to transmit electrical signals or electrical energy to make the heating wire 26 energized and heated.
[0038] Specifically, the cavity 25 is provided with a cooling channel 210, and the cooling channel 210 extends outward from the mother template 24.
[0039] In this embodiment, the main function of the cooling channel 210 is to remove residual heat from the mold through the cooling water flow, thereby controlling the mold temperature.
[0040] Specifically, a slanted guide column seat 211 is installed on the mother template 24, and the top of the slanted top 19 extends into the slanted guide column seat 211.
[0041] In this embodiment, the inclined guide post seat 211 is used to ensure the fitting accuracy between the inclined ejector 19 and the upper mold 2, so as to ensure smooth opening and closing of the mold and the molding quality of the product.
[0042] When in use, the workpiece will rise as the upper mold 2 is pressed down until the return spring 110 is compressed to the appropriate position. At this time, the mold locks the workpiece position and injection molding can be performed. When the mold is opened, the return spring 110 will play a reset role, so that the inclined ejector 19 can drive the split core 14 to move laterally, thereby quickly separating it from the workpiece. Then, the ejector mechanism can automatically eject the workpiece out of the mold. It has the advantages of convenient operation, high production efficiency and easy automation production.
[0043] In summary, in this glass lifter screw wheel injection mold, when the upper mold 2 is pressed down, the position of the workpiece will rise accordingly until the return spring 110 is compressed to the appropriate position. At this time, the mold locks the workpiece position and injection molding can be performed. When the mold is opened, the return spring 110 will play a reset role, so that the inclined ejector 19 can drive the split core 14 to move laterally, thereby quickly separating it from the workpiece. Then, the ejector mechanism can automatically eject the workpiece out of the mold. It has the advantages of convenient operation, high production efficiency, and easy realization of automated production.
[0044] 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. A glass lifter screw wheel injection mold, comprising a lower mold (1) and an upper mold (2), characterized in that: The lower mold (1) is inlaid with guide pillars (3) around its perimeter, and the upper mold (2) is inlaid with guide sleeves (4) around its perimeter, and the upper mold (2) is closed with the lower mold (1) through the guide sleeves (4) and guide pillars (3); The lower mold (1) includes a lower fixed plate (11), a square iron (12), a male template (13), and a split core (14). The square iron (12) is installed on the lower fixed plate (11), and the male template (13) is installed on the mold base. Both ends of the male template (13) are inlaid with wear-resistant base plates (15) and wear-resistant sliders (16). The split core (14) is slidably installed on both ends of the male template (13) through the wear-resistant sliders (16). The bottom of the split core (14) is provided with a ball pit (17). A spring post (18) is embedded in the male template (13), and the top of the spring post (18) passes through the wear-resistant base plate (15). The grinding plate (15) is inserted into the ball pit (17). The two ends of the split core (14) are inlaid with inclined tops (19), and the inclined tops (19) are fitted with return springs (110). The lower part of the inclined tops (19) is movably inserted into the male template (13). The lower fixed plate (11) is equipped with a lower ejector plate (111), and the lower ejector plate (111) is equipped with an upper ejector plate (112). The upper ejector plate (112) is inlaid with a pin (113), and the upper ejector plate (112) is equipped with a return spring (114). The upper part of the pin (113) extends into the split core (14).
2. The injection mold for a glass lifter screw wheel according to claim 1, characterized in that: The upper mold (2) includes an upper fixed plate (21), a heat insulation plate (22), a hot runner plate (23), a mother mold (24), and a cavity (25). The heat insulation plate (22) is installed on the upper fixed plate (21). The hot runner plate (23) is embedded in the heat insulation plate (22) and an electric heating wire (26) is embedded in the hot runner plate (23). The mother mold (24) is installed on the heat insulation plate (22). The cavity (25) is embedded in the mother mold (24). A hot nozzle (27) is connected to the bottom of the hot runner plate (23) and extends into the cavity (25).
3. The injection mold for a glass lifter screw wheel according to claim 1, characterized in that: A wear-resistant pressure strip (115) is installed on the male template (13), and the wear-resistant pressure strip (115) is pressed against the edge of the split core (14).
4. The injection mold for a glass lifter screw wheel according to claim 1, characterized in that: The split core (14) is equipped with a wear-resistant side plate (116), and the wear-resistant side plate (116) is flush with the outer end face of the split core (14).
5. The injection mold for a glass lifter screw wheel according to claim 1, characterized in that: The lower fixing plate (11) has a hole (117) in the middle, and the upper ejector plate (112) is equipped with a limit post (118).
6. The injection mold for a glass lifter screw wheel according to claim 2, characterized in that: The upper fixing plate (21) is inlaid with a gate seat (28) in the middle, and the lower part of the gate seat (28) is connected to the inlet of the hot runner plate (23).
7. The injection mold for a glass lifter screw wheel according to claim 2, characterized in that: An electrical connection element (29) is installed on the outside of the heat insulation plate (22), and the electrical connection element (29) is electrically connected to the electric heating wire (26).
8. The injection mold for a glass lifter screw wheel according to claim 2, characterized in that: The cavity (25) is provided with a cooling channel (210), and the cooling channel (210) extends outward from the mother template (24).
9. The injection mold for a glass lifter screw wheel according to claim 2, characterized in that: An inclined guide column seat (211) is installed on the mother template (24), and the top of the inclined top (19) extends into the inclined guide column seat (211).