Injection mold for plastic door of washing machine

Abstract

The utility model discloses an injection mold for a plastic door of a washing machine, and relates to the technical field of injection molds, the injection mold for the plastic door of the washing machine comprises an upper mold, a lower mold is arranged at the lower part of the upper mold, the bottom surface of the upper mold and the top surface of the lower mold are respectively provided with a molding cavity, and the inner wall of the upper mold is provided with an injection molding cavity; a cleaning assembly is installed on the top face of the upper die and comprises an upper plate, the upper plate is installed on the top face of the upper die, four moving grooves are formed in the inner wall of the upper plate at equal intervals, and moving blocks are installed on the inner walls of the moving grooves. According to the utility model, through the moving block, the auxiliary frame and the air cylinder, the rapid and automatic cleaning of the mold forming cavity is realized. Therefore, the cleaning efficiency is remarkably improved, the dependence of manual cleaning is reduced, and the production cost is reduced. And during operation, the auxiliary frame can assist in ejection of the formed washing machine door.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for a washing machine plastic door. Background Technology

[0002] Injection molds inject plastic material into a mold at high temperatures to form a finished product of the desired shape. They are characterized by high efficiency, flexibility, and high manufacturing precision, and can meet the needs of these industries.

[0003] Traditional injection mold cleaning methods often rely on manual labor or simple air blowing devices, which have limited cleaning effectiveness and are difficult to completely remove residual plastic and impurities from the molding cavity. Manual cleaning is time-consuming and labor-intensive, and the cleaning effect is inconsistent, while simple air blowing devices may result in poor cleaning performance due to uneven airflow. Utility Model Content

[0004] This invention provides an injection mold for a washing machine plastic door, which has the advantages of maintaining mold cleanliness and preventing impurities from contaminating or affecting the next molded product. It addresses the problem that injection mold cleaning often relies on manual labor or simple air blowing devices, resulting in limited cleaning effectiveness and difficulty in thoroughly removing residual plastic and impurities from the molding cavity. Manual cleaning is time-consuming and labor-intensive, and the cleaning effect is inconsistent, while simple air blowing devices may lead to poor cleaning results due to uneven airflow.

[0005] To maintain mold cleanliness and prevent impurities from contaminating or affecting the next molded product, this utility model provides the following technical solution: a washing machine plastic door injection mold, including an upper mold, a lower mold at the lower part of the upper mold, molding cavities on the bottom surface of the upper mold and the top surface of the lower mold, an injection cavity on the inner wall of the upper mold, and a cleaning component installed on the top surface of the upper mold, wherein: the cleaning component includes an upper plate, the upper plate is installed on the top surface of the upper mold, four moving grooves are equidistantly formed on the inner wall of the upper plate, moving blocks are installed on the inner wall of the moving grooves, a first air cavity is formed on the inner wall of the moving blocks, a connecting plate is installed on the outer surface of the moving blocks, an air pipe is connected to the inner wall of the first air cavity, an extension plate is installed on one side of the connecting plate, power components are installed on both sides of the upper mold, an auxiliary frame is installed on the bottom surface of the moving blocks, a second air cavity is formed on the inner wall of the auxiliary frame, and several spray holes are formed on the outer surface of the auxiliary frame.

[0006] As a preferred embodiment of this utility model, the power assembly includes a mounting plate, which is symmetrically mounted on both sides of the upper mold, and a cylinder is mounted on the top surface of the mounting plate.

[0007] As a preferred embodiment of this utility model, the molding cavity is located in the middle of the bottom surface of the upper mold, the molding cavity is located in the middle of the top surface of the lower mold, the injection cavity is located in the inner wall of the upper mold, and the output end of the injection cavity is connected to the molding cavity of the upper mold.

[0008] As a preferred embodiment of this utility model, the bottom surface of the upper plate is fixedly connected to the top surface of the upper mold, and the outer surface of the moving block is slidably connected to the inner wall of the moving groove.

[0009] In a preferred embodiment of this utility model, the first air chamber is interconnected with the inner wall of the air tube, the connecting plate and the moving block are fixedly connected to each other, the top surface of the moving block is higher than the top surface of the upper plate, and the connecting plate and the extension plate are higher than the top surface of the upper plate.

[0010] As a preferred embodiment of this utility model, the bottom surface of the movable block is fixedly connected to the top surface of the auxiliary frame, the inner walls of the first air chamber and the second air chamber are interconnected, the spray holes are opened around the auxiliary frame, the spraying ends of the spray holes are opened at an angle, and the outer surface of the auxiliary frame is in sliding contact with the inner wall of the upper mold forming cavity.

[0011] As a preferred embodiment of this utility model, one side of the mounting plate is fixedly connected to one side of the upper mold, the top surface of the mounting plate is fixedly connected to the bottom surface of the cylinder, and the extended end of the cylinder is fixedly connected to the bottom surface of the extension plate.

[0012] Compared with the prior art, this utility model provides an injection mold for a washing machine plastic door, which has the following beneficial effects:

[0013] This easy-to-clean waste disposal device, through the use of moving blocks and auxiliary frames combined with cylinders, achieves rapid and automatic cleaning of the mold forming cavity. This not only significantly improves cleaning efficiency but also reduces reliance on manual cleaning, lowering production costs. Furthermore, the auxiliary frame assists in ejecting the formed washing machine door during operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of this utility model from another angle;

[0017] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model;

[0018] Figure 5This is a schematic diagram of the movable block and auxiliary frame of this utility model.

[0019] In the diagram: 1. Upper mold; 2. Lower mold; 3. Molding cavity; 4. Injection cavity; 5. Cleaning component; 501. Upper plate; 502. Moving block; 503. First air chamber; 504. Moving groove; 505. Connecting plate; 506. Air pipe; 507. Extension plate; 508. Auxiliary frame; 509. Second air chamber; 510. Spray nozzle; 6. Power component; 601. Mounting plate; 602. Cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] Please see Figures 1-2 This utility model discloses an injection mold for a washing machine plastic door, including an upper mold 1, a lower mold 2 at the lower part of the upper mold 1, molding cavities 3 on the bottom surface of the upper mold 1 and the top surface of the lower mold 2, an injection cavity 4 on the inner wall of the upper mold 1, and a cleaning component 5 installed on the top surface of the upper mold 1, wherein:

[0022] The cleaning component 5 includes an upper plate 501, which is installed on the top surface of the upper mold 1. The inner wall of the upper plate 501 is provided with four moving slots 504 at equal intervals. Moving blocks 502 are installed on the inner wall of the moving slots 504. A first air chamber 503 is provided on the inner wall of the moving blocks 502. A connecting plate 505 is installed on the outer surface of the moving blocks 502. An air pipe 506 is connected to the inner wall of the first air chamber 503. An extension plate 507 is installed on one side of the connecting plate 505. Power components 6 are installed on both sides of the upper mold 1. An auxiliary frame 508 is installed on the bottom surface of the moving blocks 502. A second air chamber 509 is provided on the inner wall of the auxiliary frame 508. Several spray holes 510 are provided on the outer surface of the auxiliary frame 508.

[0023] The power assembly 6 includes a mounting plate 601, which is symmetrically mounted on both sides of the upper mold 1. A cylinder 602 is mounted on the top surface of the mounting plate 601.

[0024] The molding cavity 3 is located in the middle of the bottom surface of the upper mold 1, the molding cavity 3 is located in the middle of the top surface of the lower mold 2, the injection cavity 4 is located in the inner wall of the upper mold 1, and the output end of the injection cavity 4 is connected to the molding cavity 3 of the upper mold 1.

[0025] Molten plastic material is injected into the injection cavity 4 of the upper mold 1. Under pressure, the plastic fills the molding cavity 3, forming the initial shape of the washing machine door. After injection molding, wait for the plastic to cool and solidify inside the mold. At this point, the injection molding machine can be turned off to prepare for the next step. Example 2

[0026] Based on the above embodiment 1, please refer to Figures 3-5 The bottom surface of the upper plate 501 is fixedly connected to the top surface of the upper mold 1, and the outer surface of the moving block 502 is slidably connected to the inner wall of the moving groove 504.

[0027] The first air chamber 503 is connected to the inner wall of the air tube 506. The connecting plate 505 and the moving block 502 are fixedly connected to each other. The top surface of the moving block 502 is higher than the top surface of the upper plate 501. The connecting plate 505 and the extension plate 507 are higher than the top surface of the upper plate 501.

[0028] The bottom surface of the movable block 502 is fixedly connected to the top surface of the auxiliary frame 508. The inner walls of the first air chamber 503 and the second air chamber 509 are interconnected. The nozzle 510 is opened around the auxiliary frame 508. The nozzle 510 is opened at an angle. The outer surface of the auxiliary frame 508 is in sliding contact with the inner wall of the molding cavity 3 of the upper mold 1.

[0029] One side of the mounting plate 601 is fixedly connected to one side of the upper mold 1, the top surface of the mounting plate 601 is fixedly connected to the bottom surface of the cylinder 602, and the extended end of the cylinder 602 is fixedly connected to the bottom surface of the extension plate 507.

[0030] After the washing machine door cools and solidifies, cylinder 602 is activated. The extended end of cylinder 602 pushes extension plate 507 and connecting plate 505, causing moving block 502 to slide within moving groove 504. As moving block 502 moves, auxiliary frame 508 moves to above the molding cavity 3 of upper mold 1. At this time, air is supplied to the first air cavity 503 and the second air cavity 509 through air pipe 506. Gas is ejected from nozzle 510 of auxiliary frame 508, covering all corners of mold molding cavity 3 in an inclined manner, thoroughly removing residual plastic and impurities.

[0031] The working principle and usage process of this utility model are as follows: Start the injection molding machine and inject molten plastic raw material into the injection cavity 4 of the upper mold 1. Under pressure, the plastic fills the molding cavity 3, forming the initial shape of the washing machine door. After injection molding, wait for the plastic to cool and solidify within the mold. At this time, the injection molding machine can be turned off to prepare for the next operation. After the washing machine door has cooled and solidified, start the cylinder 602. The extended end of the cylinder 602 pushes the extension plate 507 and the connecting plate 505, causing the moving block 502 to slide within the moving groove 504. As the moving block 502 moves, the auxiliary frame 508 moves to the top of the molding cavity 3 of the upper mold 1. At this time, air is supplied to the first air cavity 503 and the second air cavity 509 through the air pipe 506. The gas is ejected from the nozzle 510 of the auxiliary frame 508, covering all corners of the molding cavity 3 of the mold in an inclined manner, thoroughly removing residual plastic and impurities.

[0032] Assisted ejection: During the cleaning process, the outer surface of the auxiliary frame 508 slides in contact with the inner wall of the upper mold cavity 3, which not only plays a cleaning role but also assists in ejecting the formed washing machine door. After cleaning is completed, the cylinder 602 retracts, and the moving block 502 and the auxiliary frame 508 return to their initial positions, ready for the next injection molding.

Claims

1. A plastic door injection mold for a washing machine, comprising an upper mold (1), wherein a lower mold (2) is provided at the lower part of the upper mold (1), characterized in that: The bottom surface of the upper mold (1) and the top surface of the lower mold (2) are both provided with molding cavities (3), the inner wall of the upper mold (1) is provided with injection cavity (4), and a cleaning component (5) is installed on the top surface of the upper mold (1), wherein: The cleaning component (5) includes an upper plate (501), which is installed on the top surface of the upper mold (1). The inner wall of the upper plate (501) is provided with four moving slots (504) at equal intervals. The inner wall of the moving slots (504) is provided with moving blocks (502). The inner wall of the moving blocks (502) is provided with a first air chamber (503). The outer surface of the moving blocks (502) is provided with a connecting plate (505). The inner wall of the first air chamber (503) is connected to an air pipe (506). An extension plate (507) is provided on one side of the connecting plate (505). Power components (6) are installed on both sides of the upper mold (1). An auxiliary frame (508) is installed on the bottom surface of the moving blocks (502). The inner wall of the auxiliary frame (508) is provided with a second air chamber (509). The outer surface of the auxiliary frame (508) is provided with a plurality of spray holes (510).

2. The injection mold for a washing machine plastic door according to claim 1, characterized in that: The power assembly (6) includes a mounting plate (601), which is symmetrically mounted on both sides of the upper mold (1), and a cylinder (602) is mounted on the top surface of the mounting plate (601).

3. The injection mold for a washing machine plastic door according to claim 1, characterized in that: The molding cavity (3) is located in the middle of the bottom surface of the upper mold (1), the molding cavity (3) is located in the middle of the top surface of the lower mold (2), the injection cavity (4) is located in the inner wall of the upper mold (1), and the output end of the injection cavity (4) is connected to the molding cavity (3) of the upper mold (1).

4. The injection mold for a washing machine plastic door according to claim 3, characterized in that: The bottom surface of the upper plate (501) is fixedly connected to the top surface of the upper mold (1), and the outer surface of the moving block (502) is slidably connected to the inner wall of the moving groove (504).

5. The injection mold for a washing machine plastic door according to claim 4, characterized in that: The first air chamber (503) is connected to the inner wall of the air tube (506). The connecting plate (505) and the moving block (502) are fixedly connected to each other. The top surface of the moving block (502) is higher than the top surface of the upper plate (501). The connecting plate (505) and the extension plate (507) are higher than the top surface of the upper plate (501).

6. The injection mold for a washing machine plastic door according to claim 1, characterized in that: The bottom surface of the movable block (502) is fixedly connected to the top surface of the auxiliary frame (508). The inner walls of the first air chamber (503) and the second air chamber (509) are interconnected. The spray hole (510) is opened around the auxiliary frame (508). The spray end of the spray hole (510) is opened at an angle. The outer surface of the auxiliary frame (508) slides in contact with the inner wall of the molding cavity (3) of the upper mold (1).

7. The injection mold for a washing machine plastic door according to claim 2, characterized in that: One side of the mounting plate (601) is fixedly connected to one side of the upper mold (1), the top surface of the mounting plate (601) is fixedly connected to the bottom surface of the cylinder (602), and the extended end of the cylinder (602) is fixedly connected to the bottom surface of the extension plate (507).

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