Injection mold with automatic separation mechanism

CN224867772UActive Publication Date: 2026-10-20ZHEJIANG ME-STEAD DAILY COMMODITY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522464785.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-20
Publication Date
2026-10-20
Estimated Expiration
2035-11-20

AI Technical Summary

Technical Problem

[0004]为了弥补以上不足,本实用新型提供了一种带有自动分离机构的注塑模具,旨在改善现有技术中无法对产品和浇口进行自动分离,质量的稳定性较低,安全风险较高,工作效率较低的问题

Benefits of technology

1、本实用新型中,向上移动上模座,半齿轮会带动转轴旋转半圈, 移动块在固定柱的限制下只能上下水平移动,移动板二带动切割片向下移动,切割片会由于弹簧柱二的作用移动到浇口与型腔接触面处,切割片向下移动时,对浇口进行切除,从而起到了对注塑模具进行产品与浇口自动分离的有益效果,提高了质量的稳定性,降低了安全风险,提高了工作效率,提高了实用性。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224867772U_ABST
    Figure CN224867772U_ABST
Patent Text Reader

Abstract

The utility model relates to mould technical field discloses an injection mold with automatic separating mechanism, including lower mould base, the front side fixedly connected with fixed plate of lower mould base, the inner wall rotationally connected with carousel of fixed plate, the front side fixedly connected with the shaft of carousel, the outer wall fixedly connected with half gear of shaft, the outer wall of half gear is connected with rack, the top fixedly connected with moving plate no.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an injection mold with an automatic separation mechanism. Background Technology

[0002] Mold technology, as a core foundation of industrial production, is a process equipment system that achieves material forming with specific structures. It covers the entire process of design, manufacturing, and maintenance. Through injection molding, stamping, and die casting processes, it transforms metal materials into high-precision industrial parts in batches. Currently, the industry is showing three major trends: precision, composite, and green, becoming an important indicator of a country's manufacturing competitiveness. As the most widely used and highly technology-intensive core branch in the field of mold technology, injection molds, relying on key technologies such as high-precision cavity design, multi-level injection control, and hot runner optimization, have achieved breakthrough development from single-piece cost optimization to integrated structural molding in the large-scale manufacturing scenarios of automotive interior parts and consumer electronics shells. It has become an important carrier for promoting the transformation of mold technology towards intelligence and precision.

[0003] When it is necessary to achieve mass standardized production of complex-shaped plastic products with high efficiency and low cost, injection molds are required. Injection molds are the core equipment for plastic molding and processing. They inject molten plastic at high temperature into a precisely designed cavity, and then cool and solidify it under high pressure to form a plastic product that meets the design requirements. Its structure includes a gating system, molding parts, a cooling system, and a demolding mechanism. It can realize one-time molding of complex structural parts from mobile phone shells to automotive dashboards. It is widely used in consumer electronics, automotive industry, and medical device fields. It is a key technology carrier for promoting the development of plastic products towards lightweight, integrated, and low-cost directions. However, most existing injection molds use manual methods to cut the gate, which cannot automatically separate the product from the gate, resulting in low quality stability, high safety risks, low work efficiency, and reduced practicality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an injection mold with an automatic separation mechanism, which aims to improve the problems of existing technology, such as the inability to automatically separate the product and the gate, low quality stability, high safety risks, and low work efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an injection mold with an automatic separation mechanism, comprising a lower mold base, a fixed plate fixedly connected to the front side of the lower mold base, a turntable rotatably connected to the inner wall of the fixed plate, a rotating shaft fixedly connected to the front side of the turntable, a half gear fixedly connected to the outer wall of the rotating shaft, a rack meshing with the outer wall of the half gear, a movable plate fixedly connected to the top of the rack, an upper mold base fixedly connected to the rear side of the movable plate, a movable column fixedly connected to the rear side of the turntable, a support plate fixedly connected to the rear side of the fixed plate, a fixed column fixedly connected to the inner wall of the support plate, a movable block slidably connected to the outer wall of the fixed column, multiple connecting plates fixedly connected to the front side of the movable block, a hollow plate fixedly connected to the front side of the connecting plate, a spring column fixedly connected to the rear side of the movable block, a movable plate fixedly connected to the rear end of the spring column, a cutting blade fixedly connected to the bottom of the movable plate, and a quick-release mechanism fixedly connected to the right side of the upper mold base, the quick-release mechanism being used for quick disassembly of the filter disc.

[0006] As a further description of the above technical solution: The quick-release mechanism includes a fixing block, the left side of which is fixedly connected to the right side of the upper mold base. The inner wall of the fixing block has a positioning hole, and a pin is slidably connected to the inner wall of the positioning hole. A spring post is fixedly connected to the left side of the pin, and a pressure plate is fixedly connected to the left end of the spring post. A sliding groove is provided on the right side of the inner wall of the upper mold base, and a guide plate is slidably connected to the inner wall of the sliding groove. A perforated baffle is fixedly connected to the rear side of the guide plate.

[0007] As a further description of the above technical solution: Anti-slip pads are fixedly connected to the bottom corners of the lower mold base, and a lower core is fixedly connected to the top of the lower mold base.

[0008] As a further description of the above technical solution: A nameplate is fixedly connected to the front side of the lower mold base near the edge, and a warning sticker is fixedly connected to the left side of the upper mold base.

[0009] As a further description of the above technical solution: A handle is fixedly connected to the left side of the upper mold base near the edge, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0010] As a further description of the above technical solution: A temperature gauge is fixedly connected to the front side of the upper mold base, and a limit plate is fixedly connected to the rear end of the movable column.

[0011] As a further description of the above technical solution: The bottom of the upper mold base is fixedly connected to an upper core, and a guide post is fixedly connected to the bottom corner of the upper mold base.

[0012] As a further description of the above technical solution: The top corner of the lower mold base is fixedly connected with a guide sleeve, and the inner wall of the hollow plate is slidably connected to the outer wall of the moving column.

[0013] This utility model has the following beneficial effects: 1. In this utility model, when the upper mold base is moved upward, the half gear will drive the rotating shaft to rotate half a turn. The moving block can only move horizontally up and down under the restriction of the fixed column. The moving plate two drives the cutting blade to move downward. Due to the action of the spring column two, the cutting blade will move to the contact surface between the gate and the cavity. When the cutting blade moves downward, it cuts off the gate, thereby achieving the beneficial effect of automatically separating the product from the gate of the injection mold, improving the stability of quality, reducing safety risks, improving work efficiency, and improving practicality.

[0014] 2. In this utility model, the perforated baffle is first slid into the cooling water inlet, and the guide plate is slid into the groove. Then, the pin is inserted into the positioning hole. Due to the action of the spring column, the pressure plate squeezes the guide plate, thereby fixing the perforated baffle. Conversely, the perforated baffle can be removed, which has the beneficial effect of quickly disassembling the filter plate, shortening the cleaning time, reducing downtime losses, and improving practicality. Attached Figure Description

[0015] Figure 1 This is a perspective view of the front side of the lower mold base of an injection mold with an automatic separation mechanism proposed in this utility model. Figure 2 This is a partial structural diagram of the moving plate of an injection mold with an automatic separation mechanism proposed in this utility model. Figure 3 This is a partial structural diagram of the guide pillar of an injection mold with an automatic separation mechanism proposed in this utility model; Figure 4 This is a partial structural diagram of a guide plate for an injection mold with an automatic separation mechanism proposed in this utility model. Figure 5 This is a partial structural diagram of the upper mold base of an injection mold with an automatic separation mechanism proposed in this utility model; Figure 6 This is a partial structural diagram of the fixing block of an injection mold with an automatic separation mechanism proposed in this utility model.

[0016] Legend: 1. Lower mold base; 2. Quick release mechanism; 201. Perforated baffle; 202. Guide plate; 203. Pressure plate; 204. Spring post one; 205. Pin; 206. Fixing block; 207. Positioning hole; 208. Slide groove; 3. Fixing plate; 4. Turntable; 5. Rotating shaft; 6. Half gear; 7. Rack; 8. Moving plate one; 9. Upper mold base; 10. Moving column; 11. Hollow plate; 12. Connecting plate; 13. Moving block; 14. Fixing column; 15. Support plate; 16. Spring post two; 17. Moving plate two; 18. Cutting disc; 19. Limiting plate; 20. Thermometer; 21. Handle; 22. Anti-slip sleeve; 23. Warning sticker; 24. Guide sleeve; 25. Anti-slip mat; 26. Nameplate; 27. Guide post; 28. Lower core; 29. ​​Upper core. Detailed Implementation

[0017] 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.

[0018] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 This utility model provides an embodiment of an injection mold with an automatic separation mechanism, comprising a lower mold base 1, a fixed plate 3 fixedly connected to the front side of the lower mold base 1, a turntable 4 rotatably connected to the inner wall of the fixed plate 3, a rotating shaft 5 fixedly connected to the front side of the turntable 4, a half gear 6 fixedly connected to the outer wall of the rotating shaft 5, a rack 7 meshing with the outer wall of the half gear 6, a moving plate 8 fixedly connected to the top of the rack 7, an upper mold base 9 fixedly connected to the rear side of the moving plate 8, a moving column 10 fixedly connected to the rear side of the turntable 4, and a fixed column 10 fixedly connected to the rear side of the fixed plate 3. There is a support plate 15, a fixed column 14 is fixedly connected to the inner wall of the support plate 15, a movable block 13 is slidably connected to the outer wall of the fixed column 14, a plurality of connecting plates 12 are fixedly connected to the front side of the movable block 13, a hollow plate 11 is fixedly connected to the front side of the connecting plate 12, a spring column 16 is fixedly connected to the rear side of the movable block 13, a movable plate 17 is fixedly connected to the rear end of the spring column 16, a cutting blade 18 is fixedly connected to the bottom of the movable plate 17, and a quick-release mechanism 2 is fixedly connected to the right side of the upper mold base 9. The quick-release mechanism 2 is used to quickly disassemble the filter disc. Specifically, a fixed plate 3 is fixedly connected to the front side of the lower mold base 1. The fixed plate 3 not only serves as a connection and support but also provides installation space for the turntable 4. The turntable 4 is mounted on the fixed plate 3 via a rotating connection on its inner wall, allowing it to rotate flexibly under the constraint of the fixed plate 3. A rotating shaft 5 is fixedly connected to the front side of the turntable 4, driving the turntable 4 to rotate. A half gear 6 is fixedly connected to the outer wall of the rotating shaft 5. The half gear 6 has a unique tooth structure, and its outer wall meshes with a rack 7, converting the linear motion of the rack 7 into the rotational motion of the rotating shaft 5. A movable plate 8 is fixedly connected to the top of the rack 7, serving as a connection and power transmission mechanism. An upper mold base 9 is fixedly connected to its rear side. The upper mold base 9 is an important component in the injection mold used to mold the upper part of the product. It is connected to the rack 7 via the movable plate 8, enabling the rack 7 to move up and down. A movable column 10 is fixedly connected to the rear side of the turntable 4. When the turntable 4 rotates, the movable column 10 will rotate accordingly. A support plate 15 is fixedly connected to the rear side of the device, providing a stable support structure. A fixed column 14 is fixedly connected to the inner wall of the support plate 15, and a movable block 13 is slidably connected to the outer wall of the fixed column 14. The movable block 13 can slide horizontally up and down under the constraint of the fixed column 14. Multiple connecting plates 12 are fixedly connected to the front side of the movable block 13, which serve to connect and transmit power. A hollow plate 11 is fixedly connected to its front side. The hollow plate 11 has a hollow structure, and the movable column 10 can slide on the inner wall of the hollow plate 11. When the movable column 10 makes a circular motion, it will push the hollow plate 11 to move. The hollow plate 11 drives the movable block 13 to move through the connecting plate 12. A spring column 16 is fixedly connected to the rear side of the movable block 13. The spring column 16 has good elastic properties and can undergo elastic deformation when subjected to pressure and return to its original shape after the pressure is removed. A movable plate 17 is fixedly connected to the rear end of the spring column 16, and a cutting blade 18 is fixedly connected to the bottom of the movable plate 17.

[0019] Please see the appendix Figure 4 Appendix Figure 5 and attached Figure 6 The quick-release mechanism 2 includes a fixing block 206. The left side of the fixing block 206 is fixedly connected to the right side of the upper mold base 9. The inner wall of the fixing block 206 is provided with a positioning hole 207. The inner wall of the positioning hole 207 is slidably connected with a pin 205. The left side of the pin 205 is fixedly connected with a spring column 204. The left end of the spring column 204 is fixedly connected with a pressure plate 203. The right side of the inner wall of the upper mold base 9 is provided with a sliding groove 208. The inner wall of the sliding groove 208 is slidably connected with a guide plate 202. The rear side of the guide plate 202 is fixedly connected with a perforated baffle 201. Specifically, the fixing block 206 serves as a connector and support. A positioning hole 207 is formed on the inner wall of the fixing block 206. The size and shape of the positioning hole 207 match that of the pin 205, allowing the pin 205 to slide freely within the positioning hole 207. This sliding connection facilitates subsequent installation and disassembly. When a component needs to be fixed, the pin 205 can be accurately inserted into the positioning hole 207 for positioning and fixing. When disassembly is required, the pin 205 can be easily pulled out of the positioning hole 207 for quick separation. A spring post 204 is fixedly connected to the left side of the pin 205. The spring post 204 has good elasticity and recovery performance. A pressure plate 203 is fixedly connected to the left end of the spring post 204. When the pin 205 is inserted into the positioning hole 207, the spring post 204, under its own elastic force, will drive the pressure plate 203. The plate 203 moves to the left, generating a continuous and stable compressive force on the guide plate 202. This compressive force ensures that the guide plate 202 is firmly fixed in the groove 208. The groove 208 is provided on the right side of the inner wall of the upper mold base 9. The design of the groove 208 fully considers the sliding requirements of the guide plate 202. The size and shape of the groove 208 are adapted to the guide plate 202, providing a sliding track for the guide plate 202. The guide plate 202 can slide smoothly on the inner wall of the groove 208. This sliding fit not only ensures the accuracy of the movement of the guide plate 202, but also reduces the friction during the sliding process and improves the convenience of operation. The rear side of the guide plate 202 is fixedly connected to the perforated baffle 201. The perforated baffle 201 plays an important role in the injection mold. It can filter impurities and bubbles in the injection process and ensure the quality of the injection molded product.

[0020] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 Anti-slip pads 25 are fixedly connected to the bottom corners of the lower mold base 1. A lower core 28 is fixedly connected to the top of the lower mold base 1. A nameplate 26 is fixedly connected to the front side of the lower mold base 1 near the edge. A warning sticker 23 is fixedly connected to the left side of the upper mold base 9. A handle 21 is fixedly connected to the left side of the upper mold base 9 near the edge. An anti-slip sleeve 22 is fixedly connected to the outer wall of the handle 21. Specifically, the anti-slip pad 25 serves to prevent slipping, the lower core 28 is used to shape the product, the nameplate 26 is used to display parameters, the warning sticker 23 serves to warn, the handle 21 is used to move the upper mold base 9, and the anti-slip sleeve 22 serves to prevent slipping.

[0021] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3A temperature gauge 20 is fixedly connected to the front side of the upper mold base 9, a limit plate 19 is fixedly connected to the rear end of the moving column 10, an upper core 29 is fixedly connected to the bottom of the upper mold base 9, a guide post 27 is fixedly connected to the bottom corner of the upper mold base 9, and a guide sleeve 24 is fixedly connected to the top corner of the lower mold base 1. The inner wall of the hollow plate 11 is slidably connected to the outer wall of the moving column 10. Specifically, the thermometer 20 is used to display the temperature, the limiting plate 19 is used to limit the position of the moving column 10, the upper core 29 is used to form the product, the guide column 27 plays a guiding role, the guide sleeve 24 is used to cooperate with the guide column 27 for guidance, and the moving column 10 can slide on the inner wall of the hollow plate 11.

[0022] Working principle: After the injection mold finishes its work, the upper mold base 9 moves upward. The upper mold base 9 drives the moving plate 8 to move upward, the moving plate 8 drives the rack 7 to move upward, the rack 7 drives the half gear 6 to rotate, the half gear 6 drives the rotating shaft 5 to rotate half a turn, the rotating shaft 5 drives the turntable 4 to rotate, the turntable 4 drives the moving column 10 to move, the moving column 10 slides on the inner wall of the hollow plate 11, the moving column 10 simultaneously drives the hollow plate 11 to move, the hollow plate 11 drives the connecting plate 12 to move, the connecting plate 12 drives the moving block 13 to move, the moving block 13 can only move horizontally up and down under the restriction of the fixed column 14, supporting... Plate 15 provides support for fixed column 14. Moving block 13 drives spring column 16 to move downward, spring column 16 drives moving plate 17 to move downward, and moving plate 17 drives cutting blade 18 to move downward. During the movement of upper mold base 9, cutting blade 18 will move to the contact surface between gate and cavity due to the action of spring column 16. When cutting blade 18 moves downward, it cuts off the gate, separating the gate from the product. This achieves the function of automatically separating product and gate of injection mold, improving quality stability, reducing safety risks, improving work efficiency, and improving practicality. First, slide the perforated baffle 201 along the cooling water inlet, allowing the guide plate 202 to slide along the slide groove 208. Then, insert the pin 205 into the positioning hole 207. The fixing block 206 provides a fixed position for the positioning hole 207. Due to the action of the spring column 204, the spring column 204 drives the pressure plate 203 to press the guide plate 202. The pin 205 provides a fixed position for the spring column 204, thereby fixing the guide plate 202 inside the slide groove 208, thus fixing the perforated baffle 201. Conversely, the perforated baffle 201 can be removed, thus enabling quick disassembly of the filter plate, shortening cleaning time, reducing downtime losses, and improving practicality.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An injection mold with an automatic separation mechanism, comprising a lower mold base (1), characterized in that: A fixed plate (3) is fixedly connected to the front side of the lower mold base (1). A turntable (4) is rotatably connected to the inner wall of the fixed plate (3). A rotating shaft (5) is fixedly connected to the front side of the turntable (4). A half gear (6) is fixedly connected to the outer wall of the rotating shaft (5). A rack (7) is meshed with the outer wall of the half gear (6). A moving plate (8) is fixedly connected to the top of the rack (7). An upper mold base (9) is fixedly connected to the rear side of the moving plate (8). A moving column (10) is fixedly connected to the rear side of the turntable (4). A support plate (15) is fixedly connected to the rear side of the fixed plate (3). The inner wall of the support plate (15) is... A fixed column (14) is fixedly connected to the wall. A movable block (13) is slidably connected to the outer wall of the fixed column (14). Multiple connecting plates (12) are fixedly connected to the front side of the movable block (13). A hollow plate (11) is fixedly connected to the front side of the connecting plate (12). A spring column (16) is fixedly connected to the rear side of the movable block (13). A movable plate (17) is fixedly connected to the rear end of the spring column (16). A cutting blade (18) is fixedly connected to the bottom of the movable plate (17). A quick-release mechanism (2) is fixedly connected to the right side of the upper mold base (9). The quick-release mechanism (2) is used to quickly disassemble the filter disc.

2. The injection mold with an automatic separation mechanism according to claim 1, characterized in that: The quick-release mechanism (2) includes a fixing block (206), the left side of which is fixedly connected to the right side of the upper mold base (9). The inner wall of the fixing block (206) is provided with a positioning hole (207), and the inner wall of the positioning hole (207) is slidably connected with a pin (205). The left side of the pin (205) is fixedly connected with a spring post (204), and the left end of the spring post (204) is fixedly connected with a pressure plate (203). The right side of the inner wall of the upper mold base (9) is provided with a sliding groove (208), and the inner wall of the sliding groove (208) is slidably connected with a guide plate (202). The rear side of the guide plate (202) is fixedly connected with a perforated baffle (201).

3. The injection mold with an automatic separation mechanism according to claim 1, characterized in that: Anti-slip pads (25) are fixedly connected to the bottom corners of the lower mold base (1), and a lower core (28) is fixedly connected to the top of the lower mold base (1).

4. The injection mold with an automatic separation mechanism according to claim 1, characterized in that: A nameplate (26) is fixedly connected to the front side of the lower mold base (1) near the edge, and a warning sticker (23) is fixedly connected to the left side of the upper mold base (9).

5. An injection mold with an automatic separation mechanism according to claim 1, characterized in that: A handle (21) is fixedly connected to the left side of the upper mold base (9) near the edge, and an anti-slip sleeve (22) is fixedly connected to the outer wall of the handle (21).

6. The injection mold with an automatic separation mechanism according to claim 1, characterized in that: A temperature gauge (20) is fixedly connected to the front side of the upper mold base (9), and a limit plate (19) is fixedly connected to the rear end of the moving column (10).

7. An injection mold with an automatic separation mechanism according to claim 1, characterized in that: The bottom of the upper mold base (9) is fixedly connected to the upper core (29), and the bottom corner of the upper mold base (9) is fixedly connected to the guide post (27).

8. An injection mold with an automatic separation mechanism according to claim 1, characterized in that: The top corner of the lower mold base (1) is fixedly connected with a guide sleeve (24), and the inner wall of the hollow plate (11) is slidably connected to the outer wall of the moving column (10).