Injection mold for injection molding of welding box

Abstract

The injection mold comprises a cooling piece, an injection molding female mold and an injection molding male mold, the cooling piece comprises a cooling liquid tank and a cooling water tank, cooling liquid is filled in the cooling liquid tank, flow guide pipes are communicated and fixed to the symmetrical end faces of the two sides of the cooling liquid tank, and spraying plates are horizontally fixed to the top ends of the flow guide pipes. The cooling water tank is horizontally fixed in the cooling liquid tank, the front and rear end faces of the cooling water tank are horizontally communicated and fixed with water guide cylinders, the water guide cylinders penetrate through the front and rear end faces of the cooling liquid tank, and the end parts of the water guide cylinders are communicated and fixed with an external water supply pipeline. The utility model overcomes the problems that the cooling effect of the injection mold is affected as the cooling effect of the injection mold is affected as the cooling effect of the injection mold is affected as the cooling liquid for diversion of the existing injection mold lacks a cooling structure when flowing back and the flowing-back cooling liquid carries more heat.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for injection molding of a welding box. Background Art

[0002] Welding chassis are mainly used for the chassis of machines used for welding. Welding chassis are made by injection molding during production. Most of the welding chassis are integrally injection molded through injection molds. The injection molds need to be cooled after molding. The cooled injection molds can complete the demoulding of the injection molded parts.

[0003] The existing announcement number is CN205167435U, and the name is a fast cooling injection mold, which includes a movable mold and a fixed mold. The movable mold includes a movable mold plate, a mold core and an ejection mechanism installed on the movable mold plate. The cavity formed by the movable mold plate, the fixed mold and the mold core after closing is a mold cavity. The fixed mold is provided with a main flow channel hole communicating with the mold cavity. A main flow channel tube is tightly installed in the main flow channel hole. The main flow channel tube is a long hollow pipe fitting. One end of the main flow channel tube is an inlet and the other end is an outlet. Cooling pipelines distributed in a continuous Z-shape are provided in the fixed mold and the movable mold plate. A liquid inlet and a liquid outlet are provided on the fixed mold and the movable mold plate. The cooling pipeline is connected to an external coolant device through the liquid inlet and the liquid outlet. The continuous Z-shaped distributed cooling pipeline can inject coolant into the pipeline after the injection molding process is completed. The coolant is rapidly distributed along the Z-shaped pipeline, thereby achieving uniform and rapid cooling of the mold, and then uniform and rapid cooling of the plastic product in the cavity.

[0004] However, the above-mentioned injection mold lacks a cooling structure when the coolant is refluxed, and the refluxed coolant carries more heat, resulting in poor heat absorption capacity of the refluxed coolant at a later stage, thus affecting the cooling effect of the injection mold. Utility Model Content

[0005] The utility model aims to provide an injection mold for injection molding of a welding box, aiming to improve the above-mentioned problems.

[0006] The utility model is achieved in this way:

[0007] The invention discloses an injection mold for injection molding of a welding box, comprising a cooling part, an injection die and an injection punch. The cooling part comprises a coolant tank and a cooling water tank. The coolant tank is filled with coolant, and flow guide pipes are connected and fixed on both symmetrical end surfaces of the coolant tank. A spray plate is horizontally fixed on the top of the flow guide pipe, and a water pump is connected and assembled on the flow guide pipe on one side of the coolant tank. The cooling water tank is horizontally fixed inside the coolant tank, and water guide cylinders are horizontally connected and fixed on the front and rear end surfaces of the cooling water tank. The water guide cylinders are arranged through the front and rear end surfaces of the coolant tank, and the ends of the water guide cylinders are connected and fixed to an external water supply pipeline. The injection die is arranged on the top of the coolant tank, and a cooling cavity is arranged in the hollow inside of the injection die. The spray plate is fixed through the bottom of the vertical end surfaces on both sides of the injection die, and the injection punch is arranged above the injection die.

[0008] Furthermore, a heat conducting sheet is vertically fixed on the outer wall of the cooling water tank, and a plurality of heat conducting sheets are evenly arranged.

[0009] Furthermore, a fan plate is vertically fixed on the bottom surface of the injection mold, a fan is horizontally installed through the fan plate, and the bottom surface of the fan plate is fixed on the top surface of the coolant tank.

[0010] Furthermore, a fixing frame is vertically fixed on the bottom surface of the coolant tank, and fixing screws are vertically threadedly assembled on the fixing frame of the coolant tank.

[0011] Furthermore, a hole seat is fixed on the upper part of the rear end surface of the injection mold, and an electric telescopic rod is vertically fixed on the hole seat.

[0012] Furthermore, a rod frame is vertically fixed on the rear end surface of the injection molding punch, and the rod frame is vertically slidably inserted in the hole seat, and the top of the rod frame is fixedly connected to the top end of the electric telescopic rod.

[0013] Furthermore, a filling pipe is vertically connected and fixed on the top surface of the injection male mold.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model overcomes the problem that the existing injection mold lacks a cooling structure when the coolant is refluxed, and the refluxed coolant carries more heat, resulting in poor heat absorption capacity of the later refluxed coolant, which affects the cooling effect of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0019] Figure 3 It is a schematic structural diagram of the injection mold in the disassembled state in the embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the cooling element in the embodiment of the utility model in the disassembled state;

[0021] Figure 5 It is a schematic structural diagram of the injection molding punch in an exploded state in an embodiment of the utility model.

[0022] In the figure: 1. cooling part; 11. coolant tank; 12. cooling water tank; 121. heat conducting plate; 122. water guide tube; 13. flow guide tube; 14. spray plate; 15. water pump; 16. fixing screw; 2. injection molding die; 21. cooling chamber; 22. fan plate; 23. hole seat; 24. electric telescopic rod; 3. injection molding punch; 31. rod holder; 32. filling pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, an injection mold for injection molding of a welding box comprises a cooling member 1, an injection die 2 and an injection punch 3. The cooling member 1 comprises a coolant tank 11 and a cooling water tank 12. The coolant tank 11 is filled with coolant, and the two symmetrical end surfaces of the coolant tank 11 are connected and fixed with guide pipes 13. The top of the guide pipe 13 is horizontally fixed with a spray plate 14. The guide pipe 13 on one side of the coolant tank 11 is connected and assembled with a water pump 15. The cooling water tank 12 is horizontally fixed on the coolant tank 11. The interior of the cooling water tank 11 is provided, and the front and rear end surfaces of the cooling water tank 12 are both horizontally connected and fixed with a water guide cylinder 122, the water guide cylinder 122 is set through the front and rear end surfaces of the cooling liquid tank 11, and the end of the water guide cylinder 122 is connected and fixed with an external water supply pipeline, the injection mold 2 is set at the top of the cooling liquid tank 11, and the injection mold 2 is hollow inside a cooling cavity 21, the spray plate 14 is fixed to the bottom of the vertical end surfaces on both sides of the injection mold 2, and the injection convex mold 3 is set above the injection mold 2 A heat conducting sheet 121 is vertically fixed on the outer wall of the cooling water tank 12, and a plurality of heat conducting sheets 121 are evenly arranged. A filling pipe 32 is vertically connected and fixed on the top surface of the injection punch 3. During use, the injection mold 2 and the injection punch 3 are molded together, and then the filling pipe 32 on the injection punch 3 is used to guide the plastic melt into the gap between the injection mold 2 and the injection punch 3. After the filling is completed, the water pump 15 is started to drive the coolant in the coolant tank 11 to be guided into the cooling cavity 21 of the injection mold 2 through the guide pipe 13, and then the coolant contacts the injection mold 2 to cool the internally formed welding box, and then the coolant carrying heat is guided and converged into the coolant tank 11 through the guide pipe 13, and the coolant carrying heat contacts the cooling water tank 12, and the water in the guide cooling water tank 12 contacts the coolant carrying heat, and the heat enters the water in the flowing water tank 12, and then the coolant is cooled, effectively ensuring the cooling effect of the coolant.

[0025] See also Figure 3 A fan plate 22 is vertically fixed on the bottom surface of the injection mold 2, and a fan is horizontally installed on the fan plate 22, and the bottom surface of the fan plate 22 is fixed on the top surface of the coolant tank 11. The fan on the fan plate 22 is started to drive external air in and contact the coolant tank 11 for heat dissipation.

[0026] See also Figure 4 A fixing frame is vertically fixed on the bottom surface of the coolant tank 11, and a fixing screw 16 is vertically threadedly assembled on the fixing frame of the coolant tank 11. During use, the fixing screw 16 on the fixing frame on the coolant tank 11 is used to fix the coolant tank 11 to keep it stable.

[0027] See also Figure 3 and Figure 5A hole seat 23 is fixed on the upper rear end surface of the injection mold 2, and an electric telescopic rod 24 is vertically fixed on the hole seat 23. A rod frame 31 is vertically fixed on the rear end surface of the injection punch 3, and the rod frame 31 is vertically slidably inserted in the hole seat 23. The top of the rod frame 31 is fixedly connected to the top of the electric telescopic rod 24. During use, the electric telescopic rod 24 is started to extend vertically, pushing the rod frame 31 to slide on the hole seat 23 of the injection mold 2, so as to facilitate the opening and closing of the injection mold 2 and the injection punch 3.

[0028] Working principle: During use, the injection mold 2 and the injection punch 3 are molded together, and then the filling pipe 32 on the injection punch 3 is used to guide the plastic melt into the gap between the injection mold 2 and the injection punch 3. After the filling is completed, the water pump 15 is started to drive the coolant in the coolant tank 11 to be guided into the cooling cavity 21 of the injection mold 2 through the guide pipe 13, and then the coolant contacts the injection mold 2 to cool the internally formed welding box, and then the coolant carrying heat is guided and converged into the coolant tank 11 through the guide pipe 13, and the coolant carrying heat contacts the cooling water tank 12, and the water in the guide cooling water tank 12 contacts the coolant carrying heat, and the heat enters the water in the flowing water tank 12.

[0029] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An injection mold for injection molding of a welding box, characterized in that: The invention comprises a cooling element (1), an injection molding die (2) and an injection molding punch (3), wherein the cooling element (1) comprises a cooling liquid tank (11) and a cooling water tank (12), wherein the cooling liquid tank (11) is filled with cooling liquid, and guide pipes (13) are connected and fixed on both symmetrical end surfaces of the cooling liquid tank (11), a spray plate (14) is horizontally fixed on the top of the guide pipe (13), and a water pump (15) is connected and assembled on the guide pipe (13) on one side of the cooling liquid tank (11), and the cooling water tank (12) is horizontally fixed inside the cooling liquid tank (11). The front and rear end surfaces of the cooling water tank (12) are both horizontally connected and fixed with a water guide tube (122), the water guide tube (122) is arranged through the front and rear end surfaces of the cooling liquid tank (11), and the end of the water guide tube (122) is connected and fixed with an external water supply pipeline, the injection mold (2) is arranged on the top of the cooling liquid tank (11), and the injection mold (2) is hollow inside with a cooling cavity (21), the spray plate (14) is fixed through the bottom of the vertical end surfaces on both sides of the injection mold (2), and the injection convex mold (3) is arranged above the injection mold (2).

2. The injection mold for injection molding of a welding box according to claim 1, characterized in that: A heat conducting sheet (121) is vertically fixed on the outer wall of the cooling water tank (12), and a plurality of heat conducting sheets (121) are evenly arranged.

3. The injection mold for injection molding of a welding box according to claim 2, characterized in that: A fan plate (22) is vertically fixed on the bottom surface of the injection mold (2), a fan is horizontally installed through the fan plate (22), and the bottom surface of the fan plate (22) is fixed on the top surface of the coolant tank (11).

4. The injection mold for injection molding of a welding box according to claim 3, characterized in that: A fixing frame is vertically fixed on the bottom surface of the coolant tank (11), and fixing screws (16) are vertically threadedly assembled on the fixing frame of the coolant tank (11).

5. The injection mold for injection molding of a welding box according to claim 4, characterized in that: A hole seat (23) is fixed on the upper part of the rear end surface of the injection mold (2), and an electric telescopic rod (24) is vertically fixed on the hole seat (23).

6. The injection mold for injection molding of a welding box according to claim 5, characterized in that: A rod frame (31) is vertically fixed on the rear end surface of the injection molding convex mold (3), and the rod frame (31) is vertically slidably inserted in the hole seat (23), and the top of the rod frame (31) is fixedly connected to the top end of the electric telescopic rod (24).

7. The injection mold for injection molding of a welding box according to claim 6, characterized in that: A filling pipe (32) is vertically connected and fixed on the top surface of the injection male mold (3).

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