Household appliance accessory injection mold convenient to demold

Abstract

The utility model belongs to the technical field of injection molds, and particularly discloses a household appliance accessory injection mold convenient to demold, which comprises a mold seat, a top seat is arranged above the mold seat, an upper mold is arranged at the bottom of the top seat, and a knocking component is arranged in the upper mold; the knocking assembly comprises a driving gear, a cavity is formed in the upper mold, a rotating shaft is arranged in the cavity, one end of the rotating shaft is fixedly connected with the driving gear, a rack plate is slidably connected in the cavity, the driving gear is meshed with the rack plate, and a connecting plate is fixedly connected to the bottom of the rack plate. According to the mold, adhesion between an injection molding product and the upper mold can be broken easily, the demolding process is smoother, and therefore the demolding speed and efficiency are improved, compared with a direct powerful demolding mode, the vibration knocking mode is mild, the risk that the injection molding product is damaged due to demolding operation can be reduced, and the quality and integrity of the product are guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of injection molds, and more specifically, to an injection mold for home appliance accessories that is easy to demold. Background Art

[0002] With the rapid development of the home appliance industry, the requirements for the quality, precision, and production efficiency of home appliance accessories are increasing day by day. As an important process in the production of home appliance accessories, injection molding, the performance of its mold directly affects the quality and production efficiency of the product.

[0003] In the existing home appliance injection molds, they will be cooled to reduce the time required for each injection cycle and increase the production quantity per unit time. However, after the injection mold is cooled, the mold frame and the injection groove will separate, which can improve the demolding efficiency but still requires manual peeling and removal of the mold later, requiring additional manpower and increasing production costs. Summary of the Utility Model

[0004] In order to solve the above problems, this application provides an injection mold for home appliance accessories that is easy to demold.

[0005] An injection mold for home appliance accessories that is easy to demold provided by this application adopts the following technical solutions:

[0006] An injection mold for home appliance accessories that is easy to demold includes a mold base. A top seat is provided above the mold base. An upper mold is provided at the bottom of the top seat. A knocking component is provided inside the upper mold.

[0007] The knocking component includes a driving gear. A cavity is formed inside the upper mold. A rotating shaft is provided inside the cavity. One end of the rotating shaft is fixedly connected to the driving gear. A rack plate is slidably connected inside the cavity. The driving gear meshes with the rack plate. A connecting plate is fixedly connected to the bottom of the rack plate. A plurality of vibrating plates are fixedly connected to the bottom of the connecting plate. The plurality of vibrating plates are located above the injection cavity of the upper mold. An auxiliary demolding component is provided above the mold base.

[0008] Through the above technical solutions, the knocking component helps to break the adhesion between the injection product and the upper mold, making the demolding process smoother, thereby improving the demolding speed and efficiency. Compared with the direct strong demolding method, this vibrating and knocking method is relatively gentle, which can reduce the risk of damage to the injection product caused by the demolding operation and ensure the quality and integrity of the product.

[0009] Furthermore, a first motor is provided inside the cavity of the upper mold. The output end of the first motor is fixedly connected to the rotating shaft.

[0010] Through the above technical solutions, when the first motor is started, the rotating shaft can be driven to rotate.

[0011] Further, there are two sets of auxiliary stripping components, which are respectively located at both ends of the die base. Each set of auxiliary stripping components includes a placement frame, the placement frame is fixedly connected to the top of the die base, and a plurality of rotating rods are arranged inside the placement frame. One ends of the plurality of rotating rods are fixedly connected with transmission gears, and swing blocks are fixedly connected to the outer ends of the plurality of transmission gears.

[0012] Through the above technical solution, the rotation of the swing block exerts a certain force on the injection molded part, assisting the injection molding main body to demold, helping the injection molded part to better separate from the mold, and further improving the demolding efficiency.

[0013] Further, a second motor is arranged inside each placement frame, and two of the rotating rods are respectively fixedly connected to the output ends of the corresponding second motors.

[0014] Through the above technical solution, when the second motor operates, it drives the rotating rod to rotate.

[0015] Further, a lower mold is arranged on the top of the die base, a top block is arranged inside the lower mold, and an electric push rod is arranged inside the die base. The output end of the electric push rod is fixedly connected to the top block.

[0016] Through the above technical solution, the electric push rod can push the top block to move upward. During the process of the top block moving upward, an upward thrust is applied to the injection molded product to assist the product in demolding.

[0017] Further, air vent pipes are opened at the bottom of the top block, and both air vent pipes are communicated with the lower mold.

[0018] Through the above technical solution, the gas injected into the air vent pipes can generate an upward thrust, which acts synergistically with the action of the top block, increasing the demolding force and helping to more easily push the injection molded product out of the mold.

[0019] Further, two heat dissipation channels are opened inside the die base, and heat dissipation fans are arranged inside both heat dissipation channels.

[0020] Through the above technical solution, when the heat dissipation fan works, air flow is formed in the heat dissipation channel, accelerating the heat dissipation inside the die base and reducing the overall temperature of the mold.

[0021] Further, a plurality of hydraulic rods are connected between the die base and the top seat, and the plurality of hydraulic rods are respectively located around the top seat.

[0022] Through the above technical solution, the plurality of hydraulic rods realize the up and down movement of the top seat relative to the die base through telescopic actions, thereby completing the mold closing and mold opening operations of the mold.

[0023] In summary, the present application includes at least the following beneficial technical effects:

[0024] (1) Through the arrangement of the knocking component, the utility model helps to break the adhesion between the injection-molded product and the upper mold, making the demolding process smoother, thereby improving the demolding speed and efficiency. Compared with the direct strong demolding method, this vibration knocking method is relatively gentle, which can reduce the risk of damage to the injection-molded product caused by the demolding operation and ensure the quality and integrity of the product.

[0025] (2) Through the rotation of the swinging block, a certain acting force is applied to the injection-molded part to assist the injection-molding main body in demolding, helping the injection-molded part to better separate from the mold and further improving the demolding efficiency;

[0026] (3) The electric push rod of the utility model can push the top block upward. During the upward movement of the top block, an upward thrust is applied to the injection-molded product to assist the product in demolding. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the utility model;

[0028] Figure 2 is the plan view of the utility model;

[0029] Figure 3 is the schematic diagram of the connection structure between the gear and the rack plate of the utility model;

[0030] Figure 4 is the schematic diagram of the connection structure between the lower mold and the top block of the utility model;

[0031] Figure 5 is the schematic diagram of the internal structure of the placement frame of the utility model.

[0032] Description of the reference numerals: 1, mold base; 2, top seat; 3, lower mold; 4, upper mold; 5, top block; 6, first motor; 7, driving gear; 8, rack plate; 9, connecting plate; 10, vibrating plate; 11, hydraulic rod; 12, cooling fan; 13, ventilation pipe; 14, electric push rod; 15, placement frame; 16, second motor; 17, transmission gear; 18, rotating rod; 19, swinging block. Detailed Implementation Modes

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0034] Refer to Figures 1 - 5, an injection mold for household appliance parts that facilitates demolding, including a mold base 1. Above the mold base 1, there is a top seat 2. At the bottom of the top seat 2, there is an upper mold 4, and an impact component is arranged inside the upper mold 4;

[0035] The impact component includes a driving gear 7. A cavity is formed inside the upper mold 4. A rotating shaft is arranged inside the cavity. One end of the rotating shaft is fixedly connected to the driving gear 7. A rack plate 8 is slidably connected inside the cavity. The driving gear 7 meshes with the rack plate 8. The bottom of the rack plate 8 is fixedly connected to a connecting plate 9. The bottom of the connecting plate 9 is fixedly connected to a plurality of vibrating plates 10. The plurality of vibrating plates 10 are located above the injection cavity of the upper mold 4. An auxiliary demolding component is arranged above the mold base 1.

[0036] When demolding is required after injection molding, the first motor 6 drives the gear 7 to rotate, driving the meshing rack plate 8 to slide inside the cavity. The movement of the rack plate 8 drives the plurality of vibrating plates 10 to move through the connecting plate 9. The movement of the vibrating plates 10 generates impact vibration above the injection cavity of the upper mold 4.

[0037] Through the setting of the impact component, it helps to break the adhesion between the injection molded product and the upper mold 4, making the demolding process smoother, thereby improving the demolding speed and efficiency. Compared with the direct forced demolding method, this vibration impact method is relatively gentle and can reduce the risk of damage to the injection molded product caused by the demolding operation, ensuring the quality and integrity of the product.

[0038] Refer to Figures 1 - 5 , a first motor 6 is arranged inside the cavity of the upper mold 4. The output end of the first motor 6 is fixedly connected to the rotating shaft. The auxiliary demolding component includes two groups, which are respectively located at both ends of the mold base 1. Each group of auxiliary demolding components includes a placement frame 15. The placement frame 15 is fixedly connected to the top of the mold base 1. A plurality of rotating rods 18 are arranged inside the placement frame 15. One end of each of the plurality of rotating rods 18 is fixedly connected to a transmission gear 17. The outer ends of the plurality of transmission gears 17 are fixedly connected to swing blocks 19. A second motor 16 is arranged inside each placement frame 15. Two of the rotating rods 18 are respectively fixedly connected to the output ends of the corresponding second motors 16.

[0039] When the second motor 16 inside each placement frame 15 starts, it drives the connected rotating rod 18 to rotate, and the transmission gear 17 on the rotating rod 18 rotates accordingly. Since the plurality of transmission gears 17 mesh with each other, all the rotating rods 18 and swing blocks 19 rotate slightly. Through the rotation of the swing blocks 19, a certain force is applied to the injection molded part, assisting the injection molding main body to demold and helping the injection molded part to better separate from the mold, further improving the demolding efficiency.

[0040] Refer to Figure 4, a lower mold 3 is provided on the top of the mold base 1, a top block 5 is provided inside the lower mold 3, an electric push rod 14 is provided inside the mold base 1, the output end of the electric push rod 14 is fixedly connected to the top block 5, and an air vent pipe 13 is opened at the bottom of the top block 5. Both air vent pipes 13 are communicated with the lower mold 3.

[0041] When demolding is required, the electric push rod 14 is started, and its output end pushes the top block 5 to move upward. During the upward movement of the top block 5, an upward thrust is applied to the injection molded product to assist the product in demolding. At the same time, the gas injected into the air vent pipe 13 can generate an upward thrust, which acts in coordination with the action of the top block 5 to increase the demolding force and help push the injection molded product out of the mold more easily.

[0042] Refer to Figures 1 - 4 , two heat dissipation channels are opened inside the mold base 1, heat dissipation fans 12 are provided inside both heat dissipation channels, and a plurality of hydraulic rods 11 are connected between the mold base 1 and the top seat 2. The plurality of hydraulic rods 11 are respectively located around the top seat 2.

[0043] When the heat dissipation fan 12 works, air flow is formed in the heat dissipation channel to accelerate the heat dissipation inside the mold base 1 and reduce the overall temperature of the mold.

[0044] The plurality of hydraulic rods 11 move up and down relative to the mold base 1 through telescopic actions, so as to complete the mold closing and mold opening operations of the mold.

[0045] Working principle: During the injection molding process, through the telescopic actions of the plurality of hydraulic rods 11, the top seat 2 moves relative to the mold base 1 to achieve mold closing, and the heated and molten plastic is injected into the mold. After the injection molding is completed, it enters the demolding stage. The first motor 6 in the upper mold 4 is started to drive the rotation of the rotating shaft, thereby driving the rotation of the gear 7. The driving gear 7 drives the rack plate 8 engaged with it to slide in the cavity. The rack plate 8 drives a plurality of vibrating plates 10 to move through the connecting plate 9, generating a knocking vibration above the injection cavity of the upper mold 4 to break the adhesion between the injection molded product and the upper mold 4. While the vibrating plate 10 is vibrating, the second motor 16 in the auxiliary demolding assembly at both ends of the mold base 1 is started to drive the connected rotating rod 18 to rotate. Due to the mutual engagement of the plurality of transmission gears 17, all the rotating rods 18 and the swing blocks 19 rotate slightly, applying a certain force to the injection molded part to assist the injection molding main body in demolding. At this time, the electric push rod 14 in the lower mold 3 is started, and its output end pushes the top block 5 to move upward, applying an upward thrust to the injection molded product. At the same time, gas can be injected into the lower mold 3 through the air vent pipe 13, and the upward thrust generated by the gas acts in coordination with the top block 5 to increase the demolding force.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An injection mold for home appliance accessories that is convenient for demolding, characterized in that, Comprising: A die holder (1), a top seat (2) is provided above the die holder (1), an upper mold (4) is provided at the bottom of the top seat (2), and a knocking component is provided inside the upper mold (4); The knocking component includes a driving gear (7). A cavity is formed inside the upper mold (4). A rotating shaft is provided inside the cavity. One end of the rotating shaft is fixedly connected to the driving gear (7). A rack plate (8) is slidably connected inside the cavity. The driving gear (7) meshes with the rack plate (8). A connecting plate (9) is fixedly connected to the bottom of the rack plate (8). A plurality of vibrating plates (10) are fixedly connected to the bottom of the connecting plate (9). The plurality of vibrating plates (10) are located above the injection cavity of the upper mold (4). An auxiliary demolding component is provided above the die holder (1).

2. The injection mold for household appliance parts facilitating demolding according to claim 1, wherein: A first motor (6) is provided inside the cavity of the upper mold (4). The output end of the first motor (6) is fixedly connected to the rotating shaft.

3. An injection mold for household appliance accessories that is easy to demold according to claim 1, characterized in that: The auxiliary demolding component includes two groups, which are respectively located at both ends of the die holder (1). Each group of the auxiliary demolding component includes a placement frame (15). The placement frame (15) is fixedly connected to the top of the die holder (1). A plurality of rotating rods (18) are provided inside the placement frame (15). One ends of the plurality of rotating rods (18) are all fixedly connected to transmission gears (17). Swing blocks (19) are fixedly connected to the outer ends of the plurality of transmission gears (17).

4. The injection mold for household appliance accessories facilitating demolding according to claim 3, characterized in that: A second motor (16) is provided inside each placement frame (15). Two of the rotating rods (18) are respectively fixedly connected to the output ends of the corresponding second motors (16).

5. An injection mold for household appliance accessories that is convenient for demolding, characterized in that: A lower mold (3) is provided on the top of the die holder (1). A top block (5) is provided inside the lower mold (3). An electric push rod (14) is provided inside the die holder (1). The output end of the electric push rod (14) is fixedly connected to the top block (5).

6. The injection mold for household appliance accessories that is easy to demold according to claim 5, characterized in that: An air vent pipe (13) is formed at the bottom of the top block (5). The two air vent pipes (13) are both communicated with the lower mold (3).

7. An injection mold for home appliance accessories that is easy to demold according to claim 1, characterized in that: Two heat dissipation channels are formed inside the die holder (1). Heat dissipation fans (12) are provided inside the two heat dissipation channels.

8. The injection mold for home appliance parts facilitating demolding according to claim 1, characterized in that: A plurality of hydraulic rods (11) are connected between the die holder (1) and the top seat (2). The plurality of hydraulic rods (11) are respectively located around the top seat (2).

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