Plastic product mold convenient to take
By introducing a cooling mechanism and an electric telescopic rod into the plastic mold, the problem of low part removal efficiency in traditional plastic molds is solved, achieving rapid cooling and non-destructive demolding.
Patent Information
- Application Number
- CN202520209875.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Traditional plastic molds have low demolding efficiency because the product inside the mold is at a high temperature and cannot be effectively cooled during demolding.
A plastic product mold with a cooling mechanism was designed. The mold is cooled by a closed-loop circulation system consisting of a delivery pipe, a water pump, a water tank, and a refrigerator. An electric telescopic rod is used to drive the demolding plate for precise lifting and lowering to facilitate part removal.
It enables rapid cooling of the mold and the product, ensuring the stability of the injection molding process and product quality, while avoiding damage to the product during demolding.
Smart Images

Figure CN223821029U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic mold device technology, and in particular to a plastic product mold that is easy to remove parts from. Background Technology
[0002] Plastic products are various products made from plastic raw materials through processes such as heating and pressurization. Depending on the production method, plastic products can have a variety of shapes, functions, and uses, such as daily necessities, industrial parts, electronic device housings, and packaging materials. Due to their light weight, corrosion resistance, ease of processing and molding, and low cost, plastics are widely used in various industries. With technological advancements, modern plastic products not only possess higher strength and heat resistance but also meet increasingly stringent environmental protection requirements, adapting to the needs of different fields.
[0003] Plastic product molds are specialized tools used for plastic molding and processing. They work by heating plastic raw materials to a plastic state, then using the cavity and pressure of the mold to shape them into the desired plastic product. Molds are typically made of high-strength materials such as steel and aluminum, possessing high precision and wear resistance, ensuring dimensional accuracy and a smooth surface on the plastic product.
[0004] However, when removing parts from traditional plastic molds, the high temperature of the molded product makes it difficult to effectively cool it down, resulting in low efficiency in the subsequent demolding process. Summary of the Invention
[0005] To overcome the above shortcomings, this utility model provides a plastic product mold that facilitates part removal, aiming to improve the problem in the prior art where the temperature of the product fixed in the mold is high and cannot be effectively cooled during part removal, resulting in low efficiency in the subsequent demolding process.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plastic product mold that facilitates part removal, comprising a fixing plate, a lower mold fixedly connected to the top of the fixing plate, and a cooling mechanism provided inside the lower mold;
[0007] The cooling mechanism includes a conveying pipe, one end of which is fixedly connected to the inside of the lower mold. A cooling channel is provided inside the lower mold. The other end of the conveying pipe is fixedly connected to the output end of a water pump. The input end of the water pump is fixedly connected to the inside of a water tank. A return pipe is fixedly connected to the inside of the water tank. The end of the return pipe away from the water tank is fixedly connected to the inside of the lower mold.
[0008] Furthermore, a cooler is fixedly connected inside the water tank, and a water inlet is fixedly connected to the outside of the water tank.
[0009] Furthermore, support legs are fixedly connected to the four bottom corners of the fixed plate, and a base plate is fixedly connected to the inner side of the support legs.
[0010] Furthermore, the bottoms of both the water pump and the water tank are fixedly connected to the top of the base plate.
[0011] Furthermore, an electric telescopic rod is fixedly connected to the bottom of the fixed plate, and a stripping template is fixedly connected to the output end of the electric telescopic rod. The stripping template is slidably connected to the outside of the lower mold.
[0012] Furthermore, a support cover is fixedly connected to the top of the fixed plate, and a cylinder is fixedly connected to the top of the support cover.
[0013] Furthermore, the output end of the cylinder is fixedly connected to a mounting plate, the top of the mounting plate is fixedly connected to a guide rod, the outside of the guide rod is slidably connected to the inside of the support cover, and the bottom of the mounting plate is fixedly connected to an upper mold.
[0014] Furthermore, an injection tube is fixedly connected inside the upper mold.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this invention, when rapid cooling of the product is required after injection molding, the water pump starts, drawing cooling water from the water tank and sending it through a delivery pipe into the cooling channel of the lower mold. Because the mold is designed with a cooling channel, the cooling water can evenly cool the mold and the product. After absorbing heat, the water flows out from the other end of the cooling channel and returns to the water tank through a return pipe. The returned hot water is cooled to a suitable temperature by a chiller in the water tank and then drawn back into the mold cooling channel by the water pump. This closed-loop circulation maintains the mold temperature within an appropriate range, ensuring a stable injection molding process and product quality.
[0017] 2. In this invention, after the mold and the product have cooled, the electric telescopic rod drives the demolding platen to move. The demolding platen, moving up and down inside the lower mold, easily removes the product from the mold. This process ensures smooth demolding by precisely controlling the lifting position of the demolding platen, preventing damage to the product. Attached Figure Description
[0018] Figure 1 This is a perspective view of a plastic product mold that facilitates part removal, as proposed in this utility model.
[0019] Figure 2 A cross-sectional view of the lower mold of a plastic product mold that facilitates part removal, as proposed in this utility model;
[0020] Figure 3 This is a cross-sectional view of a water tank for a plastic product mold that facilitates part removal, as proposed in this utility model.
[0021] Legend:
[0022] 1. Fixed plate; 2. Support cover; 3. Cylinder; 4. Guide rod; 5. Mounting plate; 6. Upper mold; 7. Lower mold; 8. Water tank; 9. Water pump; 10. Delivery pipe; 11. Cooling channel; 12. Return pipe; 13. Refrigerator; 14. Water inlet; 15. Injection pipe; 16. Electric telescopic rod; 17. Demolding plate; 18. Support leg; 19. Base plate. Detailed Implementation
[0023] 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.
[0024] Reference Figure 1 , Figure 2 and Figure 3 One embodiment of this utility model is a plastic product mold that is easy to remove parts, including a fixing plate 1, a lower mold 7 fixedly connected to the top of the fixing plate 1, and a cooling mechanism provided inside the lower mold 7.
[0025] The cooling mechanism includes a conveying pipe 10, one end of which is fixedly connected to the inside of the lower mold 7. A cooling channel 11 is provided inside the lower mold 7. The other end of the conveying pipe 10 is fixedly connected to the output end of a water pump 9. The input end of the water pump 9 is fixedly connected to the inside of a water tank 8. A return pipe 12 is fixedly connected inside the water tank 8. The end of the return pipe 12 away from the water tank 8 is fixedly connected to the inside of the lower mold 7. A cooler 13 is fixedly connected inside the water tank 8. A water inlet 14 is fixedly connected to the outside of the water tank 8. Support legs 18 are fixedly connected to the four corners of the bottom of the fixed plate 1. A base plate 19 is fixedly connected to the inside of the support legs 18. The bottoms of the water pump 9 and the water tank 8 are both fixedly connected to the top of the base plate 19.
[0026] The water pump 9 extracts the cooling water from the water tank 8, and the water in the water tank 8 is cooled by the cooler 13. The extracted cooling water is transported to the cooling channel 11 in the lower mold 7 through the delivery pipe 10, and then flows back to the inside of the water tank 8 through the return pipe 12. The water inlet 14 is used to add water into the water tank. The support leg 18 is used to support the fixing plate 1. The base plate 19 is used to install the water pump 9 and the water tank 8.
[0027] Reference Figure 1 , Figure 2 and Figure 3An electric telescopic rod 16 is fixedly connected to the bottom of the fixed plate 1. A demolding template 17 is fixedly connected to the output end of the electric telescopic rod 16. The demolding template 17 is slidably connected to the outside of the lower mold 7. A support cover 2 is fixedly connected to the top of the fixed plate 1. A cylinder 3 is fixedly connected to the top of the support cover 2. An installation plate 5 is fixedly connected to the output end of the cylinder 3. A guide rod 4 is fixedly connected to the top of the installation plate 5. The guide rod 4 is slidably connected to the outside of the support cover 2. An upper mold 6 is fixedly connected to the bottom of the installation plate 5. An injection tube 15 is fixedly connected to the inside of the upper mold 6.
[0028] The electric telescopic rod 16 is used to drive the demolding template 17 to perform demolding operations. The support cover 2 is used to install the cylinder 3. The cylinder 3 is used to drive the mounting plate 5 and the upper mold 6. The mounting plate 5 is used to install the guide rod 4 and the upper mold 6. The guide rod 4 guides the upper mold 6. The injection tube 15 is used for injection molding.
[0029] Working principle: When rapid cooling of the injection-molded product is required, water pump 9 starts, drawing cooling water from water tank 8. The drawn cooling water is sent to the cooling channel 11 of the lower mold 7 through delivery pipe 10. The mold design typically includes cooling channel 11 to ensure that water can uniformly cool the mold and the injection-molded product. The cooling water flows inside the mold, absorbing the heat generated by the mold and plastic product during the injection molding process, reducing the mold temperature. After heat exchange, the water flows out from the other end of cooling channel 11, enters return pipe 12, and returns to water tank 8. The returned hot water is cooled by the cooler 13 in water tank 8. The cooler 13 typically uses a refrigerant or other cooling medium to cool the hot water to an appropriate temperature. The cooled water is then drawn back by water pump 9 and enters the mold cooling channel 11, forming a closed-loop cycle that continuously maintains the mold temperature within an appropriate range, ensuring the stability of the injection molding process and product quality.
[0030] After the lower mold 7 and the product have cooled, the electric telescopic rod 16 drives the demolding template 17 to move. The demolding template 17, moving up and down inside the lower mold 7, easily removes the product from the mold. This process ensures smooth demolding and prevents damage to the product by precisely controlling the lifting position of the demolding template 17.
[0031] 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. A plastic product mold for easy part removal, comprising a fixing plate (1), characterized in that: The top of the fixed plate (1) is fixedly connected to the lower mold (7), and the interior of the lower mold (7) is provided with a cooling mechanism; The cooling mechanism includes a conveying pipe (10), one end of which is fixedly connected to the inside of the lower mold (7). A cooling channel (11) is provided inside the lower mold (7). The other end of the conveying pipe (10) is fixedly connected to the output end of a water pump (9). The input end of the water pump (9) is fixedly connected to the inside of a water tank (8). A return pipe (12) is fixedly connected inside the water tank (8). The end of the return pipe (12) away from the water tank (8) is fixedly connected to the inside of the lower mold (7).
2. The plastic product mold for easy part removal according to claim 1, characterized in that: A cooler (13) is fixedly connected inside the water tank (8), and a water inlet (14) is fixedly connected outside the water tank (8).
3. A plastic product mold for easy part removal according to claim 1, characterized in that: The bottom four corners of the fixed plate (1) are fixedly connected to support legs (18), and the inner side of the support legs (18) is fixedly connected to a base plate (19).
4. A plastic product mold for easy part removal according to claim 1, characterized in that: The bottoms of the water pump (9) and the water tank (8) are both fixedly connected to the top of the base plate (19).
5. A plastic product mold for easy part removal according to claim 1, characterized in that: An electric telescopic rod (16) is fixedly connected to the bottom of the fixed plate (1), and a stripping template (17) is fixedly connected to the output end of the electric telescopic rod (16). The stripping template (17) is slidably connected to the outside of the lower mold (7) inside.
6. A plastic product mold for easy part removal according to claim 1, characterized in that: The top of the fixed plate (1) is fixedly connected to a support cover (2), and the top of the support cover (2) is fixedly connected to a cylinder (3).
7. A plastic product mold for easy part removal according to claim 6, characterized in that: The output end of the cylinder (3) is fixedly connected to the mounting plate (5), the top of the mounting plate (5) is fixedly connected to the guide rod (4), the outside of the guide rod (4) is slidably connected to the inside of the support cover (2), and the bottom of the mounting plate (5) is fixedly connected to the upper mold (6).
8. A plastic product mold for easy part removal according to claim 7, characterized in that: The upper mold (6) is internally fixedly connected to an injection tube (15).