Heat dissipation type plastic injection mold

Abstract

The utility model relates to the technical field of injection molds, and provides a heat dissipation type plastic injection mold which comprises a base and a heat dissipation injection molding mechanism. The heat dissipation fins are arranged, the contact area of the lower die and cooling liquid can be increased through the heat dissipation fins, heat can be transmitted into the cooling liquid more quickly to achieve quick cooling, the electromagnetic valve and the refrigerator are arranged, the electromagnetic valve controls the source of the cooling liquid, and when the temperature of the cooling liquid is low, the cooling liquid in the heat dissipation water tank is used, so that the cooling liquid is cooled more quickly. When the temperature of the cooling liquid is high, the refrigerator further cools the cooling liquid in the heat dissipation water tank, the heat dissipation speed of the mold is increased, a water pump, a supply pipe and a backflow pipe are arranged, the water pump sends the cooling liquid into the mold through the supply pipe, the cooling liquid enters the bottom of the mold, and the cooling liquid flows back through the backflow pipe after fully flowing; cooling liquid enters the filter box and is filtered through the filter screen, impurities in the operation process are removed, the situation that work of the refrigerator is affected is prevented, and the hasp is opened after the filter screen is blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a heat dissipation type plastic injection mold. Background Art

[0002] Heat dissipation plastic injection mold is an advanced mold design, which can effectively solve the heat problem generated during the plastic injection molding process, thereby improving the quality and production efficiency of the product. During the plastic injection molding process, a large amount of heat will be generated due to the high-temperature molten plastic injected into the mold. If this heat cannot be dissipated in time, it will cause thermal stress, deformation, surface defects and other problems in the product, seriously affecting the quality and performance of the product. The heat dissipation plastic injection mold can effectively dissipate the heat by designing a heat dissipation system inside the mold, thereby ensuring uniform product temperature and avoiding the above problems. This mold is usually made of materials with good thermal conductivity, such as aluminum, copper, etc. At the same time, a heat dissipation channel or heat sink is set inside the mold to increase the heat dissipation area and efficiency. The advantage of the heat dissipation plastic injection mold is that it can improve the molding quality of the product, reduce the deformation and stress of the product, and improve the dimensional accuracy and surface quality of the product. At the same time, since the mold temperature is effectively controlled, the cooling time of the product can be shortened and the production efficiency can be improved. In addition, since the mold temperature is uniform, the flow properties of the plastic can also be improved, so that the product has a better appearance and mechanical properties. Heat dissipation plastic injection molds are widely used in electronics, automobiles, home appliances and other industries, which are of great significance for improving product quality and production efficiency.

[0003] According to the search of China Utility Model Publication No.: CN217073154U, a heat dissipation plastic injection mold is disclosed. Through the coordinated use of a horizontal plate, a vertical rod, a baffle, a spring, a plug rod and a push handle, the horizontal plate drives the lower template to move downward on the outer wall of the connecting rod through two vertical rods, and the pad pushes the molding module out of the lower template to facilitate demoulding, thereby increasing the practicality of the overall mechanism. Through the coordinated use of a connecting seat, a motor, a coupling, a rotating rod and a cam, the motor drives the cam to rotate through the rotating rod, and the cam drives the horizontal plate to move. The motor is used to provide power, the degree of automation is high, the demoulding effect is increased, and it is conducive to promotion and use, which greatly meets the use requirements of injection molds in plastic processing.

[0004] However, there are some issues that need to be considered when implementing the above technical solution: the mold uses thermally conductive silicone to transfer heat, but when the mold size is larger, the transfer efficiency will decrease, resulting in reduced heat dissipation performance, and in a high temperature environment, the fan heat dissipation effect is poor. Utility Model Content

[0005] The purpose of the utility model is to provide a heat dissipation type plastic injection mold to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a heat-dissipating plastic injection mold, comprising a base and a heat-dissipating injection molding mechanism, a telescopic rod is arranged at the bottom of the base, a heat-dissipating injection molding mechanism is arranged at the outside of the telescopic rod, a hanging bracket is arranged at the top of the telescopic rod, and an upper mold is arranged on the front of the hanging bracket.

[0007] Preferably, a pipe fixing ring is provided on the top of the hanger, and the pipe fixing rings are provided in multiple groups, and the pipe fixing rings are evenly distributed on the hanger.

[0008] Preferably, a lower mold is provided on the front side of the telescopic rod, the lower mold is tightly fitted with the base, and heat dissipation fins are provided inside the lower mold.

[0009] Preferably, a heat dissipation water tank is arranged behind the upper mold, the right side of the heat dissipation water tank is connected to a refrigerator through a pipeline, the left side of the heat dissipation water tank is connected to a solenoid valve through a pipeline, and the solenoid valve is arranged in multiple groups.

[0010] Preferably, the left pipe of the solenoid valve is connected to a water pump, the water pump is connected to one end of the supply pipe, the mouth of the supply pipe is located at the bottom of the mold, the other end of the supply pipe is connected to the upper mold and the lower mold, and the right sides of the upper mold and the lower mold are both connected to the return pipe.

[0011] Preferably, the other end of the reflux pipe is connected to a filter box, and a filter screen is slidably connected to the interior of the filter box, and the filter screen matches the size of the filter box.

[0012] Preferably, a mounting plate is connected to the top of the filter screen, a sealing ring is arranged on the outside of the filter screen, the sealing ring matches the size of the mounting plate, and a buckle is arranged at the bottom of the mounting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides heat dissipation fins, which can increase the contact area between the lower mold and the coolant, so that heat is transferred to the coolant more quickly to achieve rapid cooling. By providing a solenoid valve and a refrigerator, the solenoid valve controls the source of the coolant. When the temperature of the coolant is low, the coolant in the heat dissipation tank is used. When the temperature of the coolant is high, the refrigerator further cools the coolant in the heat dissipation tank to increase the heat dissipation speed of the mold. By providing a water pump, a supply pipe and a return pipe, the water pump sends the coolant into the mold through the supply pipe and into the bottom of the mold. All sufficient flows flow back through the return pipe. By providing a filter screen and a filter box, the coolant enters the filter box and is filtered by the filter screen to remove impurities during operation and prevent the refrigerator from being affected. By providing a buckle, when the filter screen is blocked, the buckle is opened and the mounting plate is lifted for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the internal structure of the lower mold of the utility model.

[0017] Figure 3 This is a schematic diagram of the coordination of the heat dissipation water tank, refrigerator, solenoid valve, water pump and filter box of the utility model.

[0018] Figure 4 The utility model is a schematic diagram of the filter box, filter screen, mounting plate, sealing ring and buckle matching.

[0019] In the figure: 1, base; 2, telescopic rod; 3, heat dissipation injection molding mechanism; 301, bracket; 302, upper mold; 303, pipe fixing ring; 304, lower mold; 305, heat dissipation fins; 306, heat dissipation water tank; 307, refrigerator; 308, solenoid valve; 309, water pump; 310, supply pipe; 311, return pipe; 312, filter box; 313, filter net; 314, mounting plate; 315, sealing ring; 316, buckle. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[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] See also Figure 1-4 The utility model provides an embodiment: a heat dissipation plastic injection mold, including a base 1 and a heat dissipation injection molding mechanism 3, a telescopic rod 2 is arranged at the bottom of the base 1, a heat dissipation injection molding mechanism 3 is arranged at the outside of the telescopic rod 2, a hanging bracket 301 is arranged at the top of the telescopic rod 2, and an upper mold 302 is arranged on the front of the hanging bracket 301.

[0025] Specifically, a pipe fixing ring 303 is provided on the top of the hanger 301. Multiple groups of pipe fixing rings 303 are provided, and the pipe fixing rings 303 are evenly distributed on the hanger 301. Passing the supply pipe 310 and the return pipe 311 through the pipe fixing ring 303 can prevent the pipe from swinging randomly and getting stuck in the gap and being squeezed and damaged when the telescopic rod 2 drives the upper mold 302 to move.

[0026] Specifically, a lower mold 304 is provided on the front of the telescopic rod 2, and the lower mold 304 fits tightly with the base 1. The interior of the lower mold 304 is provided with heat dissipation fins 305, and the heat dissipation fins 305 can increase the contact area between the lower mold 304 and the coolant, so that the heat is transferred to the coolant more quickly to achieve rapid cooling.

[0027] Specifically, a cooling water tank 306 is provided at the rear of the upper mold 302, and a refrigerator 307 is connected to the right side of the cooling water tank 306 through a pipeline, and a solenoid valve 308 is connected to the left side of the cooling water tank 306 through a pipeline. Multiple groups of solenoid valves 308 are provided, and the solenoid valves 308 control the source of the coolant. When the temperature of the coolant is low, the coolant in the cooling water tank 306 is used. When the temperature of the coolant is high, the refrigerator 307 further cools the coolant in the cooling water tank 306 to increase the heat dissipation speed of the mold.

[0028] Specifically, the left pipe of the solenoid valve 308 is connected to a water pump 309, and the water pump 309 is connected to one end of a supply pipe 310. The mouth of the supply pipe 310 is located at the bottom of the mold, and the other end of the supply pipe 310 is connected to the upper mold 302 and the lower mold 304. The right sides of the upper mold 302 and the lower mold 304 are both connected to the return pipe 311. The water pump 309 delivers the coolant into the mold through the supply pipe 310, enters the bottom of the mold, and fully flows back through the return pipe 311.

[0029] Specifically, the other end of the return pipe 311 is connected to a filter box 312, and a filter screen 313 is slidably connected inside the filter box 312. The filter screen 313 matches the size of the filter box 312. The coolant enters the filter box 312 and is filtered by the filter screen 313 to remove impurities during operation to prevent affecting the operation of the refrigerator 307.

[0030] Specifically, the top of the filter 313 is connected to the mounting plate 314, and a sealing ring 315 is arranged on the outside of the filter 313. The sealing ring 315 matches the size of the mounting plate 314, and a buckle 316 is arranged at the bottom of the mounting plate 314. The sealing ring 315 prevents the coolant from overflowing. When the filter 313 is blocked, the buckle 316 is opened and the mounting plate 314 is lifted for replacement.

[0031] Working principle: First, the mold is installed. When in use, the solenoid valve 308 controls the source of the coolant. When the coolant temperature is low, the coolant in the heat dissipation tank 306 is used. When the coolant temperature is high, the refrigerator 307 further cools the coolant in the heat dissipation tank 306 to increase the heat dissipation speed of the mold. The water pump 309 sends the coolant into the mold through the supply pipe 310 and enters the bottom of the mold. The heat dissipation fins 305 can increase the contact area between the lower mold 304 and the coolant, so that the heat is transferred to the coolant faster to achieve rapid cooling. The full flow flows back through the return pipe 311, and the coolant enters the filter box 312 and is filtered by the filter screen 313. The sealing ring 315 prevents the coolant from overflowing, removes impurities during operation, and prevents the operation of the refrigerator 307 from being affected. When the filter screen 313 is blocked, the buckle 316 is opened and the mounting plate 314 is lifted for replacement.

[0032] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A heat dissipation plastic injection mold, comprising a base (1) and a heat dissipation injection molding mechanism (3), characterized in that: A telescopic rod (2) is arranged at the bottom of the base (1), a heat dissipation injection molding mechanism (3) is arranged on the outside of the telescopic rod (2), a hanger (301) is arranged on the top of the telescopic rod (2), an upper mold (302) is arranged on the front of the hanger (301), a heat dissipation water tank (306) is arranged behind the upper mold (302), the right side of the heat dissipation water tank (306) is connected to a refrigerator (307) through a pipeline, the left side of the heat dissipation water tank (306) is connected to a solenoid valve (308) through a pipeline, and a plurality of groups of solenoid valves (308) are arranged, a lower mold (304) is arranged on the front of the telescopic rod (2), the lower mold (304) is tightly fitted with the base (1), and heat dissipation fins (305) are arranged inside the lower mold (304).

2. A heat dissipation plastic injection mold according to claim 1, characterized in that: A pipeline fixing ring (303) is arranged on the top of the hanger (301), and a plurality of groups of the pipeline fixing rings (303) are arranged, and the pipeline fixing rings (303) are evenly distributed on the hanger (301).

3. The heat dissipation plastic injection mold according to claim 1, characterized in that: The left pipeline of the solenoid valve (308) is connected to a water pump (309), and the water pump (309) is connected to one end of a supply pipe (310). The mouth of the supply pipe (310) is located at the bottom of the mold, and the other end of the supply pipe (310) is connected to the upper mold (302) and the lower mold (304). The right sides of the upper mold (302) and the lower mold (304) are both connected to a return pipe (311).

4. The heat dissipation plastic injection mold according to claim 3, characterized in that: The other end of the return pipe (311) is connected to a filter box (312), and a filter screen (313) is slidably connected inside the filter box (312), and the size of the filter screen (313) matches that of the filter box (312).

5. The heat dissipation plastic injection mold according to claim 4, characterized in that: The top of the filter screen (313) is connected to a mounting plate (314), a sealing ring (315) is arranged on the outside of the filter screen (313), the size of the sealing ring (315) matches that of the mounting plate (314), and a buckle (316) is arranged at the bottom of the mounting plate (314).

Images