Cooling mechanism of automobile bumper injection mold

Abstract

The utility model discloses a cooling mechanism of automobile bumper injection mold, including frame, locating block, fixed mode, movable die and hydraulic cylinder, the hydraulic cylinder fixed mounting is to frame, the hydraulic cylinder is used for driving movable die along frame horizontal movement, the fixed mode is fixed mounting through bolt to locating block, the locating block is integrally arranged with frame, the die cavity of movable die accesses injection equipment. The utility model discloses through the left side of heat conduction block complete and cooling liquid overall contact, realizes the full area cooling to the inside of mode groove, and the cooling effect is more uniform, and heat conduction block structure is simple, and the processing is convenient, utilizes the empty groove simultaneously and realizes the convenient loading and unloading connection between fixed mode and locating block, is convenient for the replacement mold of replacing mold simultaneously, makes heat conduction block and empty groove convenient fit, thereby realized the device has the advantages that the cooling structure is more simple, the processing difficulty is low, reduces the processing cost, and simultaneously realizes the overall uniform cooling effect of finished product.

Description

Technical Field

[0001] This utility model relates to the field of automotive bumper injection molding technology, and more specifically, to a cooling mechanism for an automotive bumper injection mold. Background Technology

[0002] Injection molds are tools used to produce plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used to mass-produce certain complex-shaped parts. Specifically, it refers to injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine, and obtaining the molded product after cooling and solidification.

[0003] The manufacturing process for car bumpers involves injection molding, where high-temperature raw materials are injected into the mold cavity and then cooled and shaped. However, the current cooling method still involves opening cooling water channels inside the mold and using circulating cooling water to cool the high-temperature mold after injection.

[0004] The aforementioned existing technologies still suffer from high costs in processing mold water channels, which increases injection costs. Furthermore, the water channels cannot completely cover the mold cavity area, resulting in uneven cooling and affecting the quality of the finished product. Utility Model Content

[0005] The purpose of this utility model is to provide a cooling mechanism for an automotive bumper injection mold, which reduces processing difficulty and cost, improves production efficiency, and solves the related problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] A cooling mechanism for an automotive bumper injection mold includes a frame, a positioning block, a fixed mold, a moving mold, and a hydraulic cylinder. The hydraulic cylinder is fixedly mounted on the frame and drives the moving mold to move horizontally along the frame. The fixed mold is fixedly mounted on the positioning block by bolts. The positioning block is integrally formed with the frame. The cavity of the moving mold is connected to an injection molding machine. A slot is provided on the right side of the positioning block, and a heat-conducting block is provided on the left side of the fixed mold, extending into the interior of the slot. An inlet pipe and a drain pipe are installed on the positioning block, both connected to an external coolant circulation system. The inlet pipe and the drain pipe are located at the top and bottom of the slot, respectively.

[0008] As a further description of the above technical solution: an electromagnetic exhaust valve is installed on the left side of the positioning block, and the electromagnetic exhaust valve is used to discharge the high-temperature steam inside the empty tank.

[0009] As a further description of the above technical solution: the heat-conducting block includes a heat-conducting plate and a heat-conducting fin assembly. The heat-conducting plate is fixedly installed on the left side of the fixed mold, and the heat-conducting fin assembly is installed on the heat-conducting plate and located inside the empty slot.

[0010] As a further description of the above technical solution: a matrix of guide posts are fixedly installed on the heat-conducting plate, and the other end of the guide posts is fixedly connected to the inner wall of the empty groove.

[0011] As a further description of the above technical solution: both the top and bottom of the inner side of the empty groove are provided with strip-shaped guide pipes, and the end of the strip-shaped guide pipe facing the inner side of the empty groove is provided with guide holes arranged at equal intervals.

[0012] As a further description of the above technical solution: both the inlet connection pipe and the outlet connection pipe are equipped with electromagnetic control valves on their left ends.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This solution uses a modular fixed mold and utilizes the slots on the positioning blocks for loading and unloading. Combined with the heat-conducting blocks on the fixed mold for comprehensive and uniform heat dissipation, the device achieves the advantages of a simpler cooling structure, lower processing difficulty, reduced processing costs, and comprehensive and uniform cooling effect on the finished product. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 for Figure 1 Enlarged schematic diagram of the structure of section A in the middle;

[0017] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0018] Figure 4 This is a partial side view sectional structural diagram of the present invention.

[0019] Explanation of the labels in the diagram:

[0020] 1. Frame; 2. Positioning block; 21. Empty slot; 211. Strip guide pipe; 212. Guide hole; 22. Electromagnetic exhaust valve; 3. Fixed mold; 31. Heat-conducting block; 311. Heat-conducting plate; 3111. Guide post; 312. Heat-conducting fin assembly; 4. Moving mold; 5. Hydraulic cylinder; 6. Liquid inlet connection pipe; 7. Liquid outlet connection pipe; 8. Electromagnetic control valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0022] Please see Figure 1-4 In this utility model, a cooling mechanism for an injection mold of an automobile bumper includes a frame 1, a positioning block 2, a fixed mold 3, a moving mold 4, and a hydraulic cylinder 5. The hydraulic cylinder 5 is fixedly installed on the frame 1 and is used to drive the moving mold 4 to move horizontally along the frame 1. The fixed mold 3 is fixedly installed on the positioning block 2 by bolts. The positioning block 2 is integrally set with the frame 1. The mold cavity of the moving mold 4 is connected to the injection equipment. A slot 21 is opened on the right side of the positioning block 2. A heat-conducting block 31 is provided on the left side of the fixed mold 3. The heat-conducting block 31 extends into the interior of the slot 21. An inlet connection pipe 6 and a drain connection pipe 7 are installed on the positioning block 2. Both the inlet connection pipe 6 and the drain connection pipe 7 are connected to an external coolant circulation device. The inlet connection pipe 6 and the drain connection pipe 7 are located at the top and bottom of the slot 21, respectively.

[0023] In this invention, the moving mold 4 is driven by the hydraulic cylinder 5 on the frame 1 to move along the frame 1 and fit against the fixed mold 3. Then, high-temperature raw material is injected into the mold cavity using an injection molding machine, and cooled and formed, thus completing the injection molding process. During cooling, coolant is injected through the inlet connection pipe 6 using a coolant circulation device. The coolant enters the interior of the empty groove 21 and quickly fills it. Then, the high-temperature coolant is extracted through the drain connection pipe 7 to achieve circulation. At this time, the left side of the heat-conducting block 31 is in full contact with the coolant, achieving full-area cooling of the mold cavity. The cooling effect is more uniform, and the heat-conducting block 31 has a simple structure and is easy to process. At the same time, the empty groove 21 allows for convenient loading and unloading of the fixed mold 3 and the positioning block 2, facilitating mold replacement and making it easy for the heat-conducting block 31 to fit into the empty groove 21. Thus, the device has the advantages of a simpler cooling structure, lower processing difficulty, reduced processing costs, and a comprehensive and uniform cooling effect on the finished product. It solves the problems of high processing costs for mold water channels in the prior art, which increases injection costs, and the water channels cannot completely cover the mold cavity area, resulting in uneven cooling and affecting the quality of the finished product.

[0024] Please see Figure 2 Among them, an electromagnetic exhaust valve 22 is installed on the left side of the positioning block 2. The electromagnetic exhaust valve 22 is used to discharge the high-temperature steam inside the empty tank 21.

[0025] In this invention, after cooling is completed, the internal coolant is drained through the drain connection pipe 7. When injection molding is performed again, the temperature of the heat-conducting block 31 rises, and the generated high-temperature steam is discharged along the opened electromagnetic exhaust valve 22. The electromagnetic exhaust valve 22 is connected to the control system of the injection equipment to realize automated operation.

[0026] Please see Figure 2 and Figure 3The heat-conducting block 31 includes a heat-conducting plate 311 and a heat-conducting fin assembly 312. The heat-conducting plate 311 is fixedly installed on the left side of the fixed mold 3, and the heat-conducting fin assembly 312 is installed on the heat-conducting plate 311 and located inside the slot 21.

[0027] In this invention, the combination of heat-conducting plate 311 and heat-conducting fin group 312 increases the contact area between heat-conducting block 31 and coolant, improving heat exchange efficiency. At the same time, heat-conducting plate 311 enables the fixed mold 3 to achieve overall synchronous and uniform heat dissipation, improving the quality of finished product.

[0028] Please see Figure 1 and Figure 3 Among them, a matrix of guide posts 3111 are fixedly installed on the heat-conducting plate 311, and the other end of the guide post 3111 is fixedly connected to the inner wall of the empty groove 21.

[0029] In this invention, the heat-conducting plate 311 is made to contact and support the inner wall of the slot 21 by the guide post 3111, making the installation of the fixed mold 3 more stable.

[0030] Please see Figure 2 and Figure 4 The top and bottom of the inner side of the empty trough 21 are provided with strip-shaped guide pipes 211, and the end of the strip-shaped guide pipe 211 facing the inner side of the empty trough 21 is provided with guide holes 212 arranged at equal intervals.

[0031] In this invention, the strip-shaped guide tube 211, in conjunction with the guide hole 212, makes the coolant flow more evenly and the heat-conducting fin assembly 312 and the heat-conducting plate 311 more evenly contacted.

[0032] Please see Figure 1 Among them, the left end of both the liquid inlet connection pipe 6 and the liquid outlet connection pipe 7 is equipped with an electromagnetic control valve 8.

[0033] In this invention, the electromagnetic control valve 8 is connected to the injection equipment control system, which facilitates the automated control of the opening and closing of the liquid inlet connection pipe 6 and the liquid outlet connection pipe 7.

[0034] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A cooling mechanism for an injection mold of an automobile bumper, comprising a frame (1), a positioning block (2), a fixed mold (3), a moving mold (4), and a hydraulic cylinder (5), wherein the hydraulic cylinder (5) is fixedly mounted on the frame (1), and the hydraulic cylinder (5) is used to drive the moving mold (4) to move horizontally along the frame (1), wherein the fixed mold (3) is fixedly mounted on the positioning block (2) by bolts, the positioning block (2) is integrally formed with the frame (1), and the cavity of the moving mold (4) is connected to an injection equipment; Its features are: A slot (21) is provided on the right side of the positioning block (2), and a heat-conducting block (31) is provided on the left side of the fixed mold (3). The heat-conducting block (31) extends into the interior of the slot (21). An inlet connection pipe (6) and a drain connection pipe (7) are installed on the positioning block (2). Both the inlet connection pipe (6) and the drain connection pipe (7) are connected to an external coolant circulation device. The inlet connection pipe (6) and the drain connection pipe (7) are located at the top and bottom of the slot (21), respectively.

2. The cooling mechanism for an automotive bumper injection mold according to claim 1, characterized in that: An electromagnetic exhaust valve (22) is installed on the left side of the positioning block (2), which is used to discharge the high-temperature steam inside the empty tank (21).

3. The cooling mechanism for an automotive bumper injection mold according to claim 1, characterized in that: The heat-conducting block (31) includes a heat-conducting plate (311) and a heat-conducting fin assembly (312). The heat-conducting plate (311) is fixedly installed on the left side of the fixed mold (3), and the heat-conducting fin assembly (312) is installed on the heat-conducting plate (311) and located inside the slot (21).

4. The cooling mechanism for an automotive bumper injection mold according to claim 3, characterized in that: The heat-conducting plate (311) is fixedly installed with matrix-distributed guide posts (3111), and the other end of the guide posts (3111) is fixedly connected to the inner wall of the empty groove (21).

5. The cooling mechanism for an automotive bumper injection mold according to claim 1, characterized in that: The top and bottom of the inner side of the empty groove (21) are provided with strip-shaped guide pipes (211), and the end of the strip-shaped guide pipe (211) facing the inner side of the empty groove (21) is provided with guide holes (212) arranged at equal intervals.

6. The cooling mechanism for an automotive bumper injection mold according to claim 1, characterized in that: Electromagnetic control valves (8) are installed on the left ends of both the inlet connection pipe (6) and the outlet connection pipe (7).

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