Injection mold with cooling system

Abstract

The utility model discloses an injection mold with a cooling system, which comprises a water cooling system arranged in an injection mold body, and the water cooling system is provided with an upper water cooling pipe and a lower water cooling pipe and is positioned on the peripheries of the upper part and the lower part of a mold core; the water-cooling ends are connected to the inlet ends and the outlet ends of the upper water-cooling pipe and the lower water-cooling pipe; the oil cooling system is provided with an oil cooling pipe which is arranged around the mold core; and the oil cooling end is connected to the inlet and outlet ports of the oil cooling pipe. The water cooling system and the oil cooling system are combined for use, so that the defects of sink marks, bubbles and the like on the surface of an injection product are effectively reduced, the appearance quality of the product is improved, and the improvement of cooling efficiency is beneficial to reducing the shrinkage and deformation of plastic in a mold, so that the surface of the product is smoother and smoother; and the water cooling system and the oil cooling system are combined for use, so that the more uniform cooling effect is realized, the internal stress of the product caused by non-uniform temperature is reduced, and the structural strength and durability of the product are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, in particular to an injection mold with a cooling system. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] Regarding the cooling technology of injection molds, the existing public patent (publication number CN 209350782 U) discloses an injection mold with a cooling system, including a movable mold, a fixed mold, a support frame, a cooling system and a movable mold driving device, the support frame includes a supporting bottom plate, a supporting side plate and a top plate, the supporting side plates are arranged on both sides of the supporting bottom plate, and the top plate is arranged on the top of the two supporting side plates, the movable mold is connected to the top plate and the side plate through the movable mold driving device, and the lower part of the movable mold is correspondingly provided with a fixed mold matched therewith, the fixed mold is arranged on the supporting bottom plate, and one side of the fixed mold is connected to the cooling system; the inside of the movable mold and the fixed mold are both provided with a hollow interlayer, and a plurality of heat sinks are arranged in the interlayer, and an injection port is arranged on the top of the movable mold, the cooling system includes an exhaust pipe and an exhaust fan, the exhaust pipe is connected to one side of the fixed mold, and an exhaust fan is arranged on the exhaust pipe line, and a plurality of air inlet holes are opened on the outer side wall of the fixed mold and the movable mold away from the exhaust pipe. The utility model can realize the rapid cooling of injection molded parts to improve production efficiency.

[0004] The working efficiency of the cooling system in the above injection mold is low, and it is difficult to quickly and evenly cool the injection mold. To this end, we provide an injection mold with a cooling system to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is an injection mold with a cooling system, comprising a water cooling system arranged inside the injection mold body, the water cooling system comprising:

[0007] The water cooling system is provided with an upper water cooling pipe and a lower water cooling pipe, which are located around the upper and lower parts of the mold core;

[0008] A water-cooling terminal connected to the inlet and outlet ends of the upper water-cooling pipe and the lower water-cooling pipe;

[0009] An oil cooling system is provided with oil cooling pipes arranged around the mold core;

[0010] The oil cooling end is connected to the inlet and outlet ports of the oil cooling pipe.

[0011] The utility model is further configured that the injection mold body has a built-in double mold core, and the outside of the mold core is adapted with a positioning block.

[0012] The utility model is further configured that the positioning block is assembled with a locking block, and the locking block is matched with a sliding seat, and the sliding seat is embedded and installed inside the injection mold body.

[0013] The utility model is further configured that the mold core is provided with an injection molding branch pipe, and the injection molding branch pipe is provided with an exhaust pipe.

[0014] The utility model is further configured that the injection molding branch pipe is connected with an injection molding nozzle, and the injection molding nozzle is embedded and installed in the top plate of the injection molding mold body.

[0015] The utility model is further configured such that the oil cooling pipe is located between the upper water cooling pipe and the lower water cooling pipe, and the media inside the upper water cooling pipe, the lower water cooling pipe and the oil cooling pipe are all circulated.

[0016] The utility model has the following beneficial effects:

[0017] The utility model can effectively reduce defects such as shrinkage marks and bubbles on the surface of injection molded products by improving the cooling efficiency and combining the water cooling and oil cooling systems, thereby improving the appearance quality of the products. The improvement in cooling efficiency helps to reduce the shrinkage and deformation of plastic in the mold, making the product surface smoother and flatter. The combined use of the water cooling and oil cooling systems can also help to achieve a more uniform cooling effect and reduce the internal stress of the product caused by uneven temperature, which can not only further improve the appearance of the product, but also improve the structural strength and durability of the product.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the core installation in the injection mold.

[0020] Figure 2 It is a schematic diagram of one side assembly of the water cooling system and the oil cooling system in the utility model.

[0021] Figure 3 It is a schematic diagram of the other side assembly of the water cooling system and the oil cooling system in the utility model.

[0022] Figure numerals: 1. injection mold body; 11. mold core; 12. slide seat; 13. locking block; 14. positioning block; 15. injection nozzle; 16. injection branch pipe; 17. exhaust pipe; 18. upper water cooling pipe; 19. oil cooling pipe; 110. oil cooling terminal; 111. lower water cooling pipe; 112. water cooling terminal. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-3 An injection mold with a cooling system includes a water cooling system arranged inside the injection mold body 1, and the water cooling system includes: a water cooling system, provided with an upper water cooling pipe 18 and a lower water cooling pipe 111, located around the upper and lower parts of the mold core 11; a water cooling terminal 112, connected to the inlet and outlet ends of the upper water cooling pipe 18 and the lower water cooling pipe 111; an oil cooling system, provided with an oil cooling pipe 19, arranged around the mold core 11; an oil cooling terminal 110, connected to the inlet and outlet ports of the oil cooling pipe 19.

[0026] Specifically, in the injection mold with a cooling system proposed in the present application, by providing a water cooling system and an oil cooling system in combination, the cooling efficiency of the injection mold body 1 is improved, the product appearance is improved, and the product size is kept stable;

[0027] Among them, in practical applications, the use ratio of the water cooling system and the oil cooling system can be flexibly adjusted according to the specific needs and cooling requirements of the injection mold body 1. For example, in the early stage of the injection molding process, the water cooling system can be used to quickly reduce the mold temperature; and in the stage where the mold temperature needs to be accurately controlled, the oil cooling system can be switched to ensure the stability of product quality and size by using its stable temperature control performance;

[0028] By improving the cooling efficiency and combining the water cooling and oil cooling systems, the defects such as shrinkage marks and bubbles on the surface of the injection molded products can be effectively reduced, thereby improving the appearance quality of the products. The improvement of cooling efficiency helps to reduce the shrinkage and deformation of the plastic in the mold, making the product surface smoother and flatter. The combined use of water cooling and oil cooling systems can also help achieve a more uniform cooling effect and reduce the internal stress of the product caused by uneven temperature, which can not only further improve the appearance of the product, but also improve the structural strength and durability of the product.

[0029] Furthermore, the injection mold body 1 has a built-in double core 11 , and the outside of the core 11 is adapted with a positioning block 14 , the positioning block 14 is assembled with a locking block 13 , and the locking block 13 is cooperated with a slide seat 12 , and the slide seat 12 is embedded and installed inside the injection mold body 1 .

[0030] Specifically, the double mold core 11 is provided to improve the injection efficiency, the slide seat 12 is used to adjust the position of the locking block 13, the locking block 13 is used to lock and position the positioning block 14, and the position of the mold core 11 is fixed through the positioning block 14.

[0031] Furthermore, the mold core 11 is provided with an injection branch pipe 16 , and the injection branch pipe 16 is provided with an exhaust pipe 17 . The injection branch pipe 16 is connected to an injection nozzle 15 , and the injection nozzle 15 is embedded and installed in the top plate of the injection mold body 1 .

[0032] Specifically, the core 11 is the core component in the injection mold body 1, which is used to form the internal shape and structure of the plastic product. The design and manufacturing accuracy of the core 11 directly affects the quality and accuracy of the final product. The injection molding branch pipe 16 arranged in conjunction with the core 11 is used to transport the molten plastic from the injection molding machine to the molding site. The injection molding nozzle 15 is a component connecting the external injection molding machine and the injection molding branch pipe 16. It transports the molten plastic from the injection molding machine to the injection molding branch pipe 16, and then injects it into the core 11. The injection molding nozzle 15 connects the injection molding machine and the mold to ensure that the plastic is injected into the mold at the correct pressure and temperature. The exhaust pipe 17 arranged on the injection molding branch pipe 16 plays a very important role. During the injection molding process, air or gas may be generated inside the core 11. If it cannot be discharged in time, it may cause bubbles or defects inside the product. The exhaust pipe 17 is set to exhaust these gases during the injection molding process to ensure that the plastic can completely fill the core 11 and form a high-quality product.

[0033] Furthermore, the oil cooling pipe 19 is located between the upper water cooling pipe 18 and the lower water cooling pipe 111, and the media inside the upper water cooling pipe 18, the lower water cooling pipe 111 and the oil cooling pipe 19 are all circulated.

[0034] Specifically, the oil cooling pipe 19 delivers cooling oil to the periphery of the mold core 11 through a circulation pump. During the flow, the oil absorbs and takes away heat, and then discharges the heat through the condenser and evaporator, thereby achieving the purpose of cooling. The oil cooling pipe 19 adopts a constant temperature control system, which can accurately control the temperature of the cooling oil, making the temperature of the mold core 11 more stable and improving product quality. In addition, the oil has good thermal conductivity and can quickly absorb and disperse heat, thereby achieving an efficient cooling effect.

[0035] The upper water-cooling pipe 18 and the lower water-cooling pipe 111 take away the heat through heat exchange, and discharge the heat through components such as the condenser and evaporator. Water has excellent thermal conductivity, is low in cost as a cooling medium, and is easy to obtain and replace, making the operating cost relatively low. The heat generated during the water-cooling operation can be effectively utilized through equipment such as cooling towers, which helps to achieve energy recycling.

Claims

1. Injection mold with cooling system, characterized in that: It comprises a water cooling system arranged inside the injection mold body (1), the water cooling system comprising: A water cooling system is provided with an upper water cooling pipe (18) and a lower water cooling pipe (111), which are located around the upper and lower parts of the mold core (11); A water cooling end (112) connected to the inlet and outlet ends of the upper water cooling tube (18) and the lower water cooling tube (111); An oil cooling system is provided with an oil cooling pipe (19) and is arranged around the mold core (11); The oil cooling end (110) is connected to the inlet and outlet ports of the oil cooling pipe (19).

2. The injection mold with a cooling system according to claim 1, characterized in that: The injection mold body (1) has a built-in double mold core (11), and the outside of the mold core (11) is adapted with a positioning block (14).

3. The injection mold with a cooling system according to claim 2, characterized in that: The positioning block (14) is assembled with a locking block (13), and the locking block (13) is matched with a sliding seat (12), and the sliding seat (12) is embedded and installed inside the injection mold body (1).

4. The injection mold with a cooling system according to claim 1, characterized in that: The mold core (11) is provided with an injection molding branch pipe (16), and the injection molding branch pipe (16) is provided with an exhaust pipe (17).

5. The injection mold with a cooling system according to claim 4, characterized in that: The injection branch pipe (16) is connected to an injection nozzle (15), and the injection nozzle (15) is embedded and installed in the top plate of the injection mold body (1).

6. The injection mold with a cooling system according to claim 1, characterized in that: The oil cooling pipe (19) is located between the upper water cooling pipe (18) and the lower water cooling pipe (111), and the media inside the upper water cooling pipe (18), the lower water cooling pipe (111) and the oil cooling pipe (19) are all circulated.

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