Mold capable of preventing local deformation

Abstract

The utility model discloses a mold for preventing local deformation. The mold comprises a bottom plate, a mounting frame is arranged at the top of the bottom plate, a containing space is formed in the mounting frame, a hydraulic rod is arranged at the middle end of the top of the containing space, a movable mold is arranged at the bottom of the hydraulic rod, and a fixed mold is arranged at the middle end of the top of the bottom plate. Two first electric push rods are arranged on the two sides of the top of the containing space, a cooling cover is arranged at the bottoms of the first electric push rods, a cavity is formed in the cooling cover, a plurality of air outlets are evenly formed in the inner side wall of the cooling cover, a draught fan is arranged on the top of the mounting frame, and a refrigeration box is arranged at the output end of the draught fan. According to the mold capable of preventing local deformation, the side face of the mold can be conveniently and evenly cooled, local deformation of a product caused by uneven cold and heat of all parts of the product due to only cooling of the bottom is avoided, the mold can be conveniently and comprehensively cooled, the cooling efficiency is improved, and material pushing and product demolding are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for preventing local deformation. Background Art

[0002] In the automobile manufacturing process, 60% to 80% of the parts rely on mold molding. The equipment used to manufacture parts or products with specific shapes and sizes is called molds.

[0003] For example, the patent document with publication number CN209224445U discloses a rapid prototyping injection mold for automobile heat dissipation fan blades, comprising a base plate, a U-shaped plate is provided at the upper end of the base plate, and pull-out structures are provided on both sides of the upper end of the U-shaped plate, in which the inner end of the adjusting plate in the pull-out structure is fixedly connected to the two sides of the upper template, a pipe hole is provided at the upper end of the upper template, and a cavity is provided at the inner bottom end of the upper template, and the pipe hole is communicated with the cavity. The rapid prototyping injection mold for automobile heat dissipation fan blades has a simple structure, is easy to operate, and can be quickly formed, which brings great convenience to users. Moreover, according to needs, the upper and lower templates can be quickly closed or separated through the pull-out structure, which is convenient for rapid material removal and also ensures tight sealing. The diversion structure ensures rapid and uniform injection of plastic, and the cooling structure ensures rapid heat dissipation of the molded workpiece, which reduces the workload of personnel, ensures the quality of injection molding, and improves the use efficiency of the injection mold.

[0004] When the above device is in use, the heat conduction plate conducts heat quickly, the heat dissipation fins increase the heat dissipation area, and efficient heat dissipation is achieved. Cooling water is injected into the cold water tank from the outside to achieve rapid heat exchange, ensuring rapid heat dissipation of the molded workpiece, reducing the workload of personnel, ensuring the quality of injection molding, and improving the efficiency of injection mold use. However, the heat conduction mechanism is arranged inside the movable mold to cool the bottom of the mold, but the cooling effect on other positions of the mold is not obvious, which can easily cause uneven heat distribution in various parts of the product and cause local deformation. For this reason, we propose a mold to prevent local deformation. Utility Model Content

[0005] The utility model aims to provide a mold for preventing local deformation, so as to solve the problem in the above background technology that it is difficult to cool other positions of the mold.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold for preventing local deformation, comprising a base plate, a mounting frame is provided on the top of the base plate, a accommodating space is provided on the mounting frame, a hydraulic rod is provided at the top middle end of the accommodating space, a movable mold is provided at the bottom of the hydraulic rod, a fixed mold is provided at the top middle end of the base plate, two electric push rods 1 are provided on both sides of the top of the accommodating space, and a cooling cover is provided at the bottom of the electric push rod 1, a cavity is provided inside the cooling cover, and a plurality of air outlets are evenly provided on the inner side wall of the cooling cover, a fan is provided on the top of the mounting frame, and a refrigeration box is provided at the output end of the fan, a refrigeration pipe is provided inside the refrigeration box, and a delivery pipe is provided at the output end of the refrigeration box, and the delivery pipe passes through the mounting frame and is communicated with the cavity.

[0007] Furthermore, positioning columns are provided on both sides of the bottom of the movable mold, and circular holes are opened on both sides of the top of the fixed mold, and the positioning columns are coaxial with the circular holes.

[0008] By setting the positioning column, the positioning column is inserted into the circular hole to limit the fixed mold and the movable mold to prevent the movable mold from shifting during the processing.

[0009] Furthermore, legs are provided at four corners of the bottom of the base plate, a mounting plate is fixedly provided between the four legs, and the mounting plate is provided parallel to the bottom of the base plate.

[0010] Furthermore, a water tank is arranged on the top of the mounting plate, and a water pump is arranged on the top of the water tank.

[0011] Furthermore, a water inlet pipe is provided at the output end of the water pump, and the top of the water inlet pipe extends into the interior of the bottom plate.

[0012] Furthermore, a receiving cavity is provided inside the bottom plate, and a drainage pipe is provided on a side of the bottom of the receiving cavity away from the water inlet pipe.

[0013] Furthermore, a cooling box is fixedly connected to the bottom end of the drain pipe, and the cooling box is arranged on the top of the mounting plate.

[0014] Furthermore, a pusher assembly is provided at the top middle end of the mounting plate, and the pusher assembly includes an electric push rod 2, a push rod, a spring and a push plate. The electric push rod 2 is provided at the top middle end of the mounting plate, the push rod is provided at the top of the electric push rod 2 and passes through the bottom plate, the spring is provided on the push rod, and the push plate is provided at the top of the push rod and is located at the inner bottom end of the fixed mold.

[0015] The utility model provides a mold for preventing local deformation, which has the following beneficial effects: the device is convenient for uniformly cooling the sides of the mold, avoiding cooling only the bottom and uneven heating and cooling of various parts of the product, which causes local deformation of the product. The device is convenient for comprehensive cooling of the mold and improves cooling efficiency. The device is convenient for pushing materials and facilitating product demoulding.

[0016] 1. The utility model sets a cooling hood. The staff starts the electric push rod to lift it downward, and then the electric push rod drives the cooling hood at the bottom to move downward, so that the cooling hood surrounds the mold, and then starts the fan to blow air. The wind first passes through the inside of the refrigeration box to cool down, and then is transported to the cavity in the cooling hood through the delivery pipe, and then the cold air is discharged through the air outlet to cool the surrounding of the mold. The device is convenient for uniform cooling of the side of the mold, avoiding only cooling the bottom and uneven heating and cooling of various parts of the product, which causes local deformation of the product.

[0017] 2. The utility model sets up a receiving cavity. The staff starts the water pump to transport the water in the water tank to the inside of the receiving cavity through the water inlet pipe, so that the cooling water fills the receiving cavity inside the bottom plate and cools the bottom of the mold. The device cools the surroundings and the bottom of the mold at the same time, shortens the cooling time, and is convenient for comprehensive cooling of the mold, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of a mold for preventing local deformation according to the utility model;

[0019] Figure 2 This is a front view structural schematic diagram of a mold for preventing local deformation according to the utility model;

[0020] Figure 3 This is a left-side structural schematic diagram of a mold for preventing local deformation according to the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of a cooling cover for preventing local deformation of a mold according to the utility model;

[0022] Figure 5 This is a schematic diagram of a three-dimensional structure of a bottom plate section of a mold for preventing local deformation according to the utility model;

[0023] Figure 6 The utility model is a method for preventing local deformation of a mold Figure 1 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1, bottom plate; 2, mounting frame; 201, accommodating space; 3, hydraulic rod; 4, movable mold; 5, fixed mold; 6, electric push rod 1; 7, cooling hood; 701, cavity; 8, air outlet; 9, fan; 10, refrigeration box; 11, refrigeration pipe; 12, delivery pipe; 13, positioning column; 14, round hole; 15, support leg; 16, mounting plate; 17, water tank; 18, water pump; 19, water inlet pipe; 20, accommodating cavity; 21, drain pipe; 22, cooling box; 23, push assembly; 2301, electric push rod 2; 2302, push rod; 2303, spring; 2304, push plate. DETAILED DESCRIPTION

[0025] like Figure 1-6 As shown, a mold for preventing local deformation includes a bottom plate 1, a mounting frame 2 is arranged on the top of the bottom plate 1, a receiving space 201 is opened on the mounting frame 2, a hydraulic rod 3 is arranged at the top middle end of the receiving space 201, a movable mold 4 is arranged at the bottom of the hydraulic rod 3, a staff starts the hydraulic rod 3 to lift it downward, and then the hydraulic rod 3 drives the movable mold 4 at the bottom to move downward, a fixed mold 5 is arranged at the top middle end of the bottom plate 1, the movable mold 4 is closed with the movable mold 4, and then the material is squeezed into the closed cavity formed by the movable mold 4 and the fixed mold 5 through the feed port, two electric push rods 6 are arranged on both sides of the top of the receiving space 201, the staff starts the electric push rod 6 to lift it downward, and a cooling cover 7 is arranged at the bottom of the electric push rod 6, and then the electric push rod 6 drives the cooling cover 7 at the bottom to move downward, so that the cooling cover 7 at the bottom is cooled. The hood 7 surrounds the mold, and a cavity 701 is provided inside the cooling hood 7. A plurality of air outlets 8 are evenly provided on the inner wall of the cooling hood 7. A fan 9 is provided on the top of the mounting frame 2, and a refrigeration box 10 is provided at the output end of the fan 9. A refrigeration pipe 11 is provided inside the refrigeration box 10. Then, the fan 9 is started to blow air, and the wind first passes through the inside of the refrigeration box 10 for cooling. A delivery pipe 12 is provided at the output end of the refrigeration box 10. The delivery pipe 12 runs through the mounting frame 2 and is connected with the cavity 701. The delivery pipe 12 is then delivered to the cavity 701 in the cooling hood 7 through the delivery pipe 12, and then the cold air is discharged through the air outlet 8 to cool the surrounding of the mold. The device facilitates uniform cooling of the sides of the mold to avoid cooling only the bottom and causing uneven hot and cold in various parts of the product, causing local deformation of the product.

[0026] like Figure 1-3As shown, positioning columns 13 are provided on both sides of the bottom of the movable mold 4, and circular holes 14 are provided on both sides of the top of the fixed mold 5, and the positioning columns 13 are coaxial with the circular holes 14. Support legs 15 are provided at the four corners of the bottom of the bottom plate 1, and a mounting plate 16 is fixedly provided between the four support legs 15. The mounting plate 16 is arranged parallel to the bottom of the bottom plate 1, and a water tank 17 is provided on the top of the mounting plate 16, and a water pump 18 is provided on the top of the water tank 17. A water inlet pipe 19 is provided at the output end of the water pump 18, and the top of the water inlet pipe 19 extends into the interior of the bottom plate 1. A accommodating chamber 20 is provided inside the bottom plate 1, and the staff starts the water pump 18 to transport the water in the water tank 17 through the water inlet pipe 19. To the inside of the accommodating cavity 20, the cooling water fills the accommodating cavity 20 inside the bottom plate 1, and the bottom of the mold is cooled, and a drain pipe 21 is provided on the side of the bottom of the accommodating cavity 20 away from the water inlet pipe 19, and the bottom end of the drain pipe 21 is fixedly connected to a cooling box 22, and the cooling box 22 is arranged on the top of the mounting plate 16. When the water needs to be replaced, the staff opens the valve to discharge the water with increased temperature inside the accommodating cavity 20 through the drain pipe 21 to the cooling box 22 for cooling so as to be recycled. The device reduces the temperature around and at the bottom of the mold at the same time, thereby shortening the cooling time. The device is convenient for comprehensive cooling of the mold and improving the cooling efficiency.

[0027] like Figure 1 and Figure 2 As shown, a push assembly 23 is provided at the top middle end of the mounting plate 16, and the push assembly 23 includes an electric push rod 2301, a push rod 2302, a spring 2303 and a push plate 2304. The electric push rod 2301 is provided at the top middle end of the mounting plate 16, the push rod 2302 is provided at the top of the electric push rod 2301 and passes through the bottom plate 1, the spring 2303 is provided on the push rod 2302, and the push plate 2304 is provided at the top of the push rod 2302 and is located at the inner bottom end of the fixed mold 5. After cooling, the staff starts the hydraulic rod 3 to drive the movable mold 4 to move upward, so that the movable mold 4 is separated from the fixed mold 5, and then starts the electric push rod 2301 to lift upward, and then the electric push rod 2301 drives the top push rod 2302 to squeeze the spring 2303 to move upward, and then drives the push plate 2304 to move upward to push the product out. The spring 2303 plays a buffering role in the pushing process to avoid damage to the product due to excessive force when pushing. The device is convenient for pushing and product demolding.

[0028] In summary, when the mold to prevent local deformation is used, the staff first starts the hydraulic rod 3 to lift it downward, and then the hydraulic rod 3 drives the bottom movable mold 4 to move downward, so that the movable mold 4 and the movable mold 4 are closed, and then the material is squeezed into the closed cavity formed by the movable mold 4 and the fixed mold 5 through the feed port, and then the staff starts the electric push rod 6 to lift it downward, and then the electric push rod 6 drives the bottom cooling cover 7 to move downward, so that the cooling cover 7 surrounds the mold, and then starts the fan 9 to blow air, the wind first passes through the inside of the refrigeration box 10 to cool down, and then is transported to the cavity 701 in the cooling cover 7 through the conveying pipe 12, and then the cold air is discharged through the air outlet 8 to cool the surrounding of the mold. Start the water pump 18 to transport the water in the water tank 17 to the inside of the accommodating cavity 20 through the water inlet pipe 19, so that the cooling water fills the accommodating cavity 20 inside the bottom plate 1 to cool the bottom of the mold. After cooling, the staff starts the hydraulic rod 3 to drive the movable mold 4 to move upward, so that the movable mold 4 is separated from the fixed mold 5, and then starts the electric push rod 2301 to lift upward, and then the electric push rod 2301 drives the top push rod 2302 to squeeze the spring 2303 to move upward, and then drives the push plate 2304 to move upward to push the product out. The spring 2303 plays a buffering role in the pushing process to avoid damage to the product due to excessive force when pushing. This is the working principle of the mold to prevent local deformation.

Claims

1. A mold for preventing local deformation, comprising a bottom plate (1), characterized in that: A mounting frame (2) is arranged at the top of the base plate (1), a receiving space (201) is provided on the mounting frame (2), a hydraulic rod (3) is arranged at the middle of the top of the receiving space (201), a movable mold (4) is arranged at the bottom of the hydraulic rod (3), a fixed mold (5) is arranged at the middle of the top of the base plate (1), two electric push rods (6) are arranged on both sides of the top of the receiving space (201), and a cooling cover (7) is arranged at the bottom of the electric push rod (6), and the cooling cover (7) is arranged at the bottom of the electric push rod (6). A cavity (701) is arranged inside the warming cover (7), a plurality of air outlets (8) are evenly arranged on the inner side wall of the cooling cover (7), a fan (9) is arranged on the top of the mounting frame (2), and a refrigeration box (10) is arranged at the output end of the fan (9), a refrigeration pipe (11) is arranged inside the refrigeration box (10), and a delivery pipe (12) is arranged at the output end of the refrigeration box (10), and the delivery pipe (12) passes through the mounting frame (2) and is connected to the cavity (701).

2. A local deformation prevention die according to claim 1, characterized in that: Positioning columns (13) are arranged on both sides of the bottom of the movable mold (4), and circular holes (14) are opened on both sides of the top of the fixed mold (5), and the positioning columns (13) and the circular holes (14) are coaxial.

3. The local deformation prevention mold according to claim 1, characterized in that: The bottom four corners of the base plate (1) are provided with supporting legs (15), a mounting plate (16) is fixedly arranged between the four supporting legs (15), and the mounting plate (16) is arranged parallel to the bottom of the base plate (1).

4. The local deformation preventing die according to claim 3, characterized in that: A water tank (17) is arranged on the top of the mounting plate (16), and a water pump (18) is arranged on the top of the water tank (17).

5. The local deformation preventing die according to claim 4, characterized in that: The output end of the water pump (18) is provided with a water inlet pipe (19), and the top of the water inlet pipe (19) extends into the interior of the bottom plate (1).

6. The local deformation prevention die according to claim 1, characterized in that: The bottom plate (1) is provided with a receiving cavity (20) inside, and a drainage pipe (21) is provided at a side of the bottom of the receiving cavity (20) away from the water inlet pipe (19).

7. The local deformation preventing die according to claim 6, characterized in that: The bottom end of the drainage pipe (21) is fixedly connected to a cooling box (22), and the cooling box (22) is arranged on the top of the mounting plate (16).

8. The local deformation preventing die according to claim 3, characterized in that: A push assembly (23) is provided at the top middle end of the mounting plate (16), and the push assembly (23) includes an electric push rod 2 (2301), a push rod (2302), a spring (2303) and a push plate (2304), wherein the electric push rod 2 (2301) is provided at the top middle end of the mounting plate (16), the push rod (2302) is provided at the top of the electric push rod 2 (2301) and passes through the bottom plate (1), the spring (2303) is provided on the push rod (2302), and the push plate (2304) is provided at the top of the push rod (2302) and is located at the inner bottom end of the fixed mold (5).

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