High-strength injection molding part machining mold

Abstract

The utility model relates to the technical field of injection molds, in particular to a high-strength injection molding part machining mold. According to the technical scheme, the mold comprises a fixed mold body and a movable mold body, a forming cavity is formed in the fixed mold body, an injection hole is formed in the center of the inner side wall of the forming cavity, circulating water grooves are formed in the peripheries of the forming cavities of the movable mold body and the fixed mold body, and water cooling pipe connectors are fixed to the positions, aligned to the two ends of the circulating water grooves, of the outer sides of the movable mold body and the fixed mold body. And a pair of heat dissipation holes are formed in the fixed mold and penetrate through the fixed mold, a mounting groove is formed in the center position of each heat dissipation hole, a heat dissipation fan is mounted in each mounting groove, and a transmission assembly is arranged between each heat dissipation fan and the corresponding circulating water tank. According to the utility model, water-cooling and air-cooling dual heat dissipation cooling of the die is realized while extra output power is not provided, and through an efficient cooling structure, the temperature uniformity of the die is ensured, the internal stress of a product is reduced, and the dimensional stability and the strength of the product are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is a kind of high-strength injection molding processing mould. BACKGROUND

[0002] Injection mold is an important tool for injection molding process, it determines the shape, size, precision and surface quality of plastic product, mold material needs to select high-strength, high toughness and high wear resistance material, such as high-quality tool steel or alloy steel.

[0003] In the processing of high-strength injection molding, there are certain requirements for the cooling structure of the mold, in order to avoid the generation of large stress in injection product, efficient cooling structure is needed to ensure the strength of injection molding, and the common injection mold is often cooled by single water cooling, it is difficult to cool more efficiently without adding other power, so a rapid cooling processing mold needs to be designed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of high-strength injection molding processing mould to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: including fixed mould and movable mould, the fixed mould is opened with forming cavity, the inside wall center position of the forming cavity is opened with injection hole, the forming cavity periphery of movable mould and fixed mould is opened with circulating water tank, water cooling pipe connector is fixed on the outside of movable mould and fixed mould and is aligned with the both ends of circulating water tank, a pair of heat dissipation holes is opened on the fixed mould and penetrates the fixed mould, installation groove is opened in the center position of heat dissipation hole, heat dissipation fan is installed in installation groove, and transmission assembly is arranged between heat dissipation fan and circulating water tank.

[0006] Preferably, the transmission assembly includes a side slot and a transmission impeller, the side slot is opened in the side wall of the circulating water tank and is aligned with the installation slot, the impeller is installed in the side slot, the transmission impeller is located in the circulating water tank outside, and the transmission impeller and the heat dissipation fan are connected by the same connecting shaft.

[0007] Preferably, the connecting shaft of the transmission impeller and the heat dissipation fan is connected with the sealing bearing at the connecting place of the side wall of the side slot.

[0008] Preferably, the fixed mould is opened with guide hole in four corners, and the movable mould is fixed with guide rod at the position corresponding to the guide hole.

[0009] Preferably, the heat dissipation hole is of arc structure, and the heat dissipation fan is located at the middle position of the heat dissipation hole.

[0010] Preferably, the heat dissipation holes are fixed with heat dissipation fins, and the heat dissipation fins are fixed on the side of the heat dissipation holes away from the heat dissipation fan.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: while not providing additional output power, the double heat dissipation cooling of water cooling and air cooling of the mold is realized, the mold temperature is ensured to be uniform through the efficient cooling structure, the product internal stress is reduced, and the product size stability and strength are improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a high-strength injection molding part processing mold overall appearance structure schematic view of the utility model;

[0013] Figure 2 It is a high-strength injection molding part processing mold fixed mold internal section structure schematic view of the utility model;

[0014] Figure 3 It is a high-strength injection molding part processing mold fixed mold front section structure schematic view of the utility model;

[0015] Figure 4 It is a high-strength injection molding part processing mold circulating water tank and side groove section structure schematic view of the utility model.

[0016] In the drawing: 1, fixed mold;11, forming cavity;12, injection hole;13, guide hole;2, movable mold;21, guide rod;3, circulating water tank;31, water cooling pipe connector;32, side groove;33, transmission impeller;4, heat dissipation hole;41, heat dissipation fin;42, mounting groove;43, heat dissipation fan. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Please refer to Figures 1-4The utility model provides a technical scheme: including fixed mould 1 and movable mould 2, is set up in fixed mould 1 and is formed cavity 11, is set up injection hole 12 in the inboard wall center position of formed cavity 11, movable mould 2 and the formed cavity 11 periphery of fixed mould 1 all are set up circulating water tank 3, movable mould 2 and fixed mould 1 outside and with circulating water tank 3 both ends alignment position fixed water cooling pipe connector 31, a pair of heat dissipation holes 4 are set up in fixed mould 1 and pass through fixed mould 1, the center position of heat dissipation hole 4 is set up installation slot 42, is installed with heat dissipation fan 43 in installation slot 42, is set up transmission assembly between heat dissipation fan 43 and circulating water tank 3, is set up guide hole 13 in the four corners of fixed mould 1, movable mould 2 and with the corresponding position fixed guide rod 21 of guide hole 13.

[0019] Transmission assembly includes side groove 32 and transmission impeller 33, and the side groove 32 is set up in the inboard wall of circulating water tank 3 and the position is aligned with installation slot 42, and the impeller is installed in the side groove 32, and the transmission impeller 33 is located in the circulating water tank 3 outside, and the transmission impeller 33 is connected with the same connecting shaft with heat dissipation fan 43, and the connecting shaft of transmission impeller 33 and heat dissipation fan 43 is connected with the inboard wall of side groove 32 and is installed with sealing bearing, and the heat dissipation hole 4 is of arc structure, and the heat dissipation fan 43 is located in the middle position of heat dissipation hole 4, and the heat dissipation fin 41 is fixed in the heat dissipation hole 4, and the heat dissipation fin 41 is fixed on the side of heat dissipation hole 4 away from heat dissipation fan 43.

[0020] Working principle: first, water cooling pipe connector 31 on fixed mould 1 and movable mould 2 is connected on external water cooling pipeline, when injection molding is carried out, cooling liquid can be injected into circulating water tank 3, and flows in circulating water tank 3, in this process, when cooling liquid flows through the position of transmission impeller 33, it drives transmission impeller 33 to rotate, and through the transmission of connecting shaft between transmission impeller 33 and heat dissipation fan 43, heat dissipation fan 43 can be driven to rotate synchronously, thereby increasing the air flow rate in heat dissipation hole 4, the temperature of fixed mould 1 can be reduced faster, and additional driving is not needed, when the air flow in heat dissipation hole 4 is increased, the heat dissipation area of heat dissipation fin 41 can be increased, the cooling capacity can be further improved, finally, efficient cooling can be realized when injection is carried out, the internal stress of product is reduced, the strength and dimensional stability of product are improved, and the product is more suitable for high-strength injection molding.

[0021] It should be noted that in this text, relational terms such as first and second are used merely to distinguish one entity or action from another, without necessarily requiring or implying any actual such relationship or order between or among the entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0022] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.

Claims

1. A high-strength injection-molded part machining die comprising a fixed mold (1) and a movable mold (2), characterized in that: The fixed mold (1) is provided with a forming cavity (11), the inside wall of the forming cavity (11) is provided with an injection hole (12) at the center position, the movable mold (2) and the fixed mold (1) are provided with a circulating water tank (3) at the periphery of the forming cavity (11), the movable mold (2) and the fixed mold (1) are provided with a water cooling pipe connector (31) at the position outside and aligned with the two ends of the circulating water tank (3), the fixed mold (1) is provided with a pair of heat dissipation holes (4) and the heat dissipation holes (4) are provided with an installation groove (42) at the center position, the installation groove (42) is provided with a heat dissipation fan (43), and the heat dissipation fan (43) and the circulating water tank (3) are provided with a transmission assembly.

2. A high strength injection molded part processing mold according to claim 1, characterized in that: The transmission assembly comprises a side groove (32) and a transmission impeller (33), the side groove (32) is provided in the side wall of the circulating water tank (3) and is aligned with the installation groove (42), the side groove (32) is provided with an impeller, the transmission impeller (33) is located in the circulating water tank (3), and the transmission impeller (33) and the heat dissipation fan (43) are connected by the same connecting shaft.

3. A high strength injection molded part processing mold according to claim 2, characterized in that: The connecting shaft of the transmission impeller (33) and the heat dissipation fan (43) is provided with a sealing bearing at the connection with the side wall of the side groove (32).

4. A high strength injection molded part processing mold according to claim 1, characterized in that: The fixed mold (1) is provided with a guide hole (13) at the four corners, and the movable mold (2) is provided with a guide rod (21) at the position corresponding to the guide hole (13).

5. A high strength injection molded part processing mold according to claim 1, characterized in that: The heat dissipation hole (4) is a circular arc structure, and the heat dissipation fan (43) is located at the middle position of the heat dissipation hole (4).

6. A high strength injection molded part processing mold according to claim 1, characterized in that: The heat dissipation hole (4) is provided with a heat dissipation fin (41), and the heat dissipation fin (41) is fixed on the side of the heat dissipation hole (4) away from the heat dissipation fan (43).

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