Injection mold for household appliance injection molding part

Abstract

The injection mold comprises a supporting piece, an upper mold, a lower mold and a cooling piece, the supporting piece comprises a support, two screw hole plates are symmetrically arranged in the middle of the support, the two screw hole plates are fixed to the two sides of the support respectively, the upper mold is vertically installed at the top end of the support in a liftable mode, and the lower mold is installed at the top end of the support in a liftable mode. A lower mold is assembled on a screw hole plate of the support, the cooling piece comprises a cooling frame box and a water bucket, the lower mold is sleeved with the cooling frame box, the cooling frame box is fixed to the outer wall of the lower mold, a liquid inlet pipe is vertically and fixedly communicated with the bottom face of the cooling frame box, and liquid outlet pipes are fixedly communicated with the tops of the two sides of the cooling frame box; the die cooling device solves the problems that heat in a die is transmitted to the outer wall of the die, then is guided to the inner wall of the cooling base through the cooling base, and is carried and discharged when making contact with cooling water, and the mode of cooling the die is long in heat transmission path, low in heat transmission efficiency and low in cooling effect on the die.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and more specifically to an injection mold for injection molded parts of household appliances. Background Art

[0002] The outer shells of household appliances are mostly plastic parts during production. Injection molds are required for the production of plastic parts. Injection molds are tools that can be used to process the desired products through methods such as injection molding, blow molding, extrusion, and die casting. Among them, the injection mold can be used to process the desired products. Injection molds can inject hot-melt plastic into the mold, and then cool and mold it into a variety of plastic parts.

[0003] The existing announcement number is CN212603048U, and the name is an injection mold for processing plastic parts. Through the cooperation of a base plate, a water tank, a support rod, a cross plate, an electric telescopic rod, a connecting plate, an upper mold, a cooling seat, a cooling trough, a lower mold, a cavity, a first water pump, a pumping pipe, a cooling pipe, a second water pump, a circulating pipe, a partition, a motor and a cooling fan, it has the advantages of fast molding efficiency and recyclable coolant. It solves the problem of existing injection molds for processing plastic parts. During use, due to the single structure, the mold cannot be circulated and cooled to dissipate heat, which affects the mold molding efficiency and is inconvenient for users to use, thereby reducing the applicability of the injection mold.

[0004] However, the above-mentioned cooling of the mold is convenient for the later demolding of the injection molded parts. A cooling seat is installed at the bottom of the mold, and cooling water flows into the cooling seat from the water tank. The heat in the mold is transferred to the outer wall of the mold, and then the heat is conducted to the inner wall of the cooling seat through the cooling seat, and then the heat is carried away and discharged when it contacts the cooling water. This method of cooling the mold has a long heat transfer path, low heat transfer efficiency, and reduced cooling effect on the mold. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an injection mold for household appliance injection molded parts, which overcomes the above-mentioned technical defects.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] An injection mold for household appliance injection molded parts comprises a support part, an upper mold, a lower mold and a cooling part, wherein the support part comprises a bracket, two screw hole plates are symmetrically arranged in the middle of the bracket, and the two screw hole plates are respectively fixed on both sides of the bracket, the upper mold is vertically and liftably installed on the top of the bracket, and the lower mold is assembled on the screw hole plate of the bracket, and the cooling part comprises a cooling frame box and a water bucket, the cooling frame box is sleeved on the outside of the lower mold, and the cooling frame box is fixed on the outer wall of the lower mold, a liquid inlet pipe is vertically connected and fixed on the bottom surface of the cooling frame box, and liquid outlet pipes are connected and fixed on the tops of both sides of the cooling frame box, the bottom end of the water bucket is connected and fixed to the top of the liquid inlet pipe, and the top of the water bucket is connected and fixed to the liquid outlet pipe.

[0010] Furthermore, a hydraulic rod is vertically fixed on the top surface of the bracket, and the bottom end of the hydraulic rod is fixed on the top surface of the upper mold.

[0011] Furthermore, screw seats are horizontally fixed on both sides of the top surface of the lower mold, and the vertical threads in the screw seats of the lower mold are assembled with bolts, and the bolt threads on the screw seats of the lower mold are assembled on the screw hole plate.

[0012] Furthermore, a water pump is connected and assembled on the liquid inlet pipe, and mesh plates are symmetrically and vertically arranged on both sides of the bottom of the liquid inlet pipe, and the top of the mesh plates is fixed on the screw hole plate.

[0013] Furthermore, a fan plate is vertically arranged on one side of the mesh plate, and the top end of the fan plate is fixed on the bottom surface of the screw hole plate, and a fan is fixed through the fan plate.

[0014] Furthermore, a plurality of heat-conducting frame plates are transversely arranged inside the cooling frame box, and a plurality of through holes are horizontally opened on the plurality of heat-conducting frame plates.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] During use, the hydraulic rod on the upper bracket of the support is started to extend, pushing the upper mold to move vertically downward on the bracket, driving the upper mold and the lower mold on the bracket to mate to form a completed mold cavity, and then the plastic solution is filled into the mold cavity by the injection molding machine. After the filling is completed, the injection molded part in the mold cavity needs to be cooled, and the water pump on the liquid inlet pipe of the cooling frame box on the cooling part is started to guide the water in the water bucket into the cooling frame box through the liquid inlet pipe. The water flows in the cooling frame box and contacts the outer wall of the lower mold, and the heat in the lower mold is conducted to the water. Then the water carries the heat and is discharged through the liquid outlet pipe and is conducted back to the water bucket, so that the cooling water directly contacts the lower mold to dissipate the heat, thereby shortening the heat transfer path of the cooling mold, improving the heat transfer efficiency, and ensuring the cooling effect of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model as a whole in a disassembled state;

[0020] Figure 3 It is a schematic structural diagram of the support member in the decomposed state in the implementation of the utility model;

[0021] Figure 4 It is a schematic structural diagram of the lower mold in the decomposed state in the implementation of the utility model;

[0022] Figure 5 It is a schematic structural diagram of the cooling element in the exploded state in the implementation of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Support member; 11. Bracket; 12. Hydraulic rod; 13. Screw hole plate; 14. Fan plate; 15. Fan; 2. Upper mold; 3. Lower mold; 31. Bolt; 4. Cooling member; 41. Cooling frame box; 42. Heat conduction frame plate; 43. Liquid inlet pipe; 431. Water pump; 44. Mesh plate; 45. Water bucket; 46. Liquid outlet pipe. DETAILED DESCRIPTION

[0025] The technical solutions 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; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5, an injection mold for home appliance injection molding parts, including a support member 1, an upper mold 2, a lower mold 3 and a cooling member 4, the support member 1 includes a bracket 11, two screw hole plates 13 are symmetrically arranged in the middle of the bracket 11, and the two screw hole plates 13 are respectively fixed on both sides of the bracket 11, the top of the bracket 11 is vertically and liftably installed with the upper mold 2, and the lower mold 3 is assembled on the screw hole plate 13 of the bracket 11, the cooling member 4 includes a cooling frame box 41 and a water bucket 45, the cooling frame box 41 is sleeved on the outside of the lower mold 3, and the cooling frame box 41 is fixed on the outer wall of the lower mold 3, a liquid inlet pipe 43 is vertically connected and fixed on the bottom surface of the cooling frame box 41, and liquid outlet pipes 46 are connected and fixed on the tops of both sides of the cooling frame box 41, the bottom end of the water bucket 45 is connected and fixed to the top of the liquid inlet pipe 43, and the top of the water bucket 45 is connected and fixed to the liquid outlet pipe 46. A hydraulic rod 12 is vertically fixed on the top surface of the bracket 11, and the bottom end of the hydraulic rod 12 is fixed on the top surface of the upper mold 2. A plurality of heat-conducting frame plates 42 are horizontally arranged inside the cooling frame box 41, and a plurality of through holes are horizontally opened on the plurality of heat-conducting frame plates 42. Screw seats are horizontally fixed on both sides of the top surface of the lower mold 3, and bolts 31 are vertically threadedly assembled in the screw seats of the lower mold 3, and the bolts 31 on the screw seats of the lower mold 3 are threadedly assembled on the screw hole plate 13. When in use, the hydraulic rod 12 on the bracket 11 on the start support 1 is extended to push the upper mold 2 to move vertically downward on the bracket 11, driving the upper mold 2 to mate with the lower mold 3 on the bracket 11. After the mold cavity is formed, the plastic solution is then added to the mold cavity by an injection molding machine. After the filling is completed, the injection molded part in the mold cavity needs to be cooled, and the water pump 431 on the liquid inlet pipe 43 of the cooling frame box 41 on the cooling part 4 is started, and the water in the water bucket 45 is introduced into the cooling frame box 41 through the liquid inlet pipe 43. The water flows in the cooling frame box 41 and contacts the outer wall of the lower mold 3, and the heat in the lower mold 3 is conducted to the water. Then the water carries the heat and is discharged through the liquid outlet pipe 46 and is conducted back to the water bucket 45, so that the cooling water directly contacts the lower mold 3 to dissipate the heat, thereby shortening the heat transfer path of the cooling mold, improving the heat transfer efficiency, and ensuring the cooling effect of the mold.

[0027] See also Figure 4 and Figure 5 , a water pump 431 is connected and assembled on the liquid inlet pipe 43, and mesh plates 44 are symmetrically and vertically arranged on both sides of the bottom of the liquid inlet pipe 43, and the top of the mesh plate 44 is fixed on the screw hole plate 13. A fan plate 14 is vertically arranged on one side of the mesh plate 44, and the top of the fan plate 14 is fixed on the bottom surface of the screw hole plate 13, and a fan 15 is fixed through the fan plate 14. In order to improve the cooling effect of the cooling water and reduce the temperature of the water passing through the liquid inlet pipe 43 during use, the fan 15 on the fan plate 14 is started to drive the air to blow toward the mesh plate 44, and the mesh plate 44 slows down the air flow rate. The air contacts the liquid inlet pipe 43 to discharge the heat in the cooling water, thereby ensuring the cooling of the cooling water and improving the later heat storage effect.

[0028] When in use, the hydraulic rod 12 on the upper bracket 11 of the support member 1 is started to extend, pushing the upper mold 2 to move vertically downward on the bracket 11, driving the upper mold 2 to mate with the lower mold 3 on the bracket 11 to form a completed mold cavity, and then the plastic solution is filled into the mold cavity by the injection molding machine. After the filling is completed, the injection molded part in the mold cavity needs to be cooled, and the water pump 431 on the liquid inlet pipe 43 of the cooling frame box 41 on the cooling part 4 is started to introduce the water in the water bucket 45 into the cooling frame box 41 through the liquid inlet pipe 43. The water flows in the cooling frame box 41 and contacts the outer wall of the lower mold 3, and conducts the heat in the lower mold 3 into the water. Then the water carries the heat and is discharged through the liquid outlet pipe 46 and is re-conducted into the water bucket 45, so that the cooling water directly contacts the lower mold 3 to dissipate the heat.

[0029] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An injection mold for home appliance injection molded parts, characterized in that: The invention comprises a support member (1), an upper mold (2), a lower mold (3) and a cooling member (4), wherein the support member (1) comprises a bracket (11), two screw hole plates (13) are symmetrically arranged in the middle of the bracket (11), and the two screw hole plates (13) are respectively fixed on both sides of the bracket (11), the upper mold (2) is vertically and movably installed at the top end of the bracket (11), and the lower mold (3) is assembled on the screw hole plate (13) of the bracket (11), and the cooling member (4) comprises a cooling frame box (41) and a water bucket (45), the cooling frame box (41) is sleeved on the outside of the lower mold (3), and the cooling frame box (41) is fixed on the outer wall of the lower mold (3), a liquid inlet pipe (43) is vertically connected and fixed on the bottom surface of the cooling frame box (41), and liquid outlet pipes (46) are connected and fixed on the tops of both sides of the cooling frame box (41), the bottom end of the water bucket (45) is connected and fixed to the top of the liquid inlet pipe (43), and the top end of the water bucket (45) is connected and fixed to the liquid outlet pipe (46).

2. The injection mold for household appliance injection molded parts according to claim 1, characterized in that: A hydraulic rod (12) is vertically fixed on the top surface of the bracket (11), and the bottom end of the hydraulic rod (12) is fixed on the top surface of the upper mold (2).

3. The injection mold for household appliance injection molded parts according to claim 1, characterized in that: Screw seats are horizontally fixed on both sides of the top surface of the lower mold (3), and bolts (31) are vertically threadedly assembled in the screw seats of the lower mold (3), and the bolts (31) on the screw seats of the lower mold (3) are threadedly assembled on the screw hole plate (13).

4. The injection mold for household appliance injection molded parts according to claim 1, characterized in that: The liquid inlet pipe (43) is connected and assembled with a water pump (431), and mesh plates (44) are symmetrically and vertically arranged on both sides of the bottom of the liquid inlet pipe (43), and the top end of the mesh plates (44) is fixed on the screw hole plate (13).

5. The injection mold for household appliance injection molded parts according to claim 4, characterized in that: A fan plate (14) is vertically arranged on one side of the mesh plate (44), and the top end of the fan plate (14) is fixed on the bottom surface of the screw hole plate (13), and a fan (15) is fixed through the fan plate (14).

6. The injection mold for household appliance injection molded parts according to claim 1, characterized in that: A plurality of heat-conducting frame plates (42) are transversely arranged inside the cooling frame box (41), and a plurality of through holes are horizontally opened on the plurality of heat-conducting frame plates (42).

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