Rubber injection mold for producing high boots

Abstract

The utility model discloses a rubber injection mold for producing high boots, which relates to the technical field of rubber injection molding and comprises a box body, a first motor is mounted at the top end of the box body, the output end of the first motor is connected with a reciprocating screw rod, the outer wall of the reciprocating screw rod is in threaded connection with a movable frame, and the inner wall of the movable frame is fixedly connected with a second motor. The output end of the second motor is fixedly connected with a first connecting rod, the end, away from the second motor, of the first connecting rod is rotationally connected with a second connecting rod, the output end of the second motor is in threaded connection with a threaded rod, and one end of the threaded rod is rotationally connected with a mounting block. According to the utility model, the push-out distance of the piston can be adjusted according to the performance change of the aged rubber by utilizing the adjusting assembly, so that the push-out force on the rubber is increased, the rubber can be smoothly injected into a mold and a cavity is filled with the rubber, the smooth production process is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of rubber injection molding technology, specifically a rubber injection mold for producing high boots. Background Technology

[0002] Rubber injection molding technology uses a screw or plunger to inject molten rubber material into a mold cavity under high pressure. After cooling and solidification, the desired rubber product is obtained. By injecting molten rubber raw material into the mold cavity under high pressure, it is possible to achieve one-piece molding of rubber high boots, reducing splicing and sewing processes in traditional processes, improving production efficiency, and ensuring the integrity and sealing of the product, thus improving the waterproof and windproof performance of the boots.

[0003] In existing technologies, the properties of rubber materials may change during long-term storage. Rubber aging leads to an increase in viscosity and a decrease in fluidity. Traditional rubber injection mold ejection devices typically use a fixed stroke. When rubber aging leads to a decrease in fluidity, the fixed stroke may not be able to provide sufficient pressure to overcome the filling resistance, thus affecting the smooth injection of rubber and the filling effect of the mold.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a rubber injection mold for producing high boots, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a rubber injection mold for producing high boots, including a box body. A first motor is installed at the top of the box body. A reciprocating screw is connected to the output end of the first motor. A movable frame is threadedly connected to the outer wall of the reciprocating screw. A second motor is fixedly connected to the inner wall of the movable frame. A first connecting rod is fixedly connected to the output end of the second motor. A second connecting rod is rotatably connected to the end of the first connecting rod away from the second motor. A threaded rod is threadedly connected to the output end of the second motor. A mounting block is rotatably connected to one end of the threaded rod. The end of the second connecting rod away from the first connecting rod is fixedly connected to the mounting block. A third connecting rod is rotatably connected to the side of the mounting block away from the second connecting rod. A push block is rotatably connected to the end of the third connecting block away from the mounting block. A piston rod is fixedly connected to the outer wall of one side of the push block. A sleeve is slidably connected to the outer wall of the piston rod.

[0007] Furthermore, a conveying pipe is connected to the top of the sleeve, and a storage box is connected to the end of the conveying pipe away from the sleeve. The inner bottom wall of the storage box is sloping.

[0008] Furthermore, a fixed frame is fixedly connected to the end of the housing away from the first motor, and two push rods are fixedly connected to the outer wall of the fixed frame on the side closer to the first motor. A sliding plate is connected to the end of each push rod away from the fixed frame, and the inner wall of the sliding plate is slidably connected to the fixed frame.

[0009] Furthermore, an ejector assembly is installed on the outer wall of the sliding plate near the fixed frame, an installation mold is installed on the outer wall of the sliding plate away from the ejector assembly, and a mold base is installed on the outer wall of the fixed frame near the installation mold.

[0010] Furthermore, a bracket is installed on the bottom side of the storage box away from the conveying pipe, and the bracket is bolted to the storage box. The end of the storage box away from the storage box is fixedly connected to the top side of the movable frame.

[0011] Furthermore, the side of the second motor furthest from the output end is fixedly connected to the inner wall of the moving frame, and one end of the piston rod is sealed to the sleeve.

[0012] Furthermore, the outer wall of the first motor is fixedly connected to the top of the housing, while the bottom of the movable frame is slidably connected to the top of the housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The adjustment component can adjust the piston ejection distance according to the performance changes of rubber after aging, thereby increasing the ejection force on the rubber, ensuring that the rubber can be smoothly injected into the mold and fill the cavity, ensuring the smooth progress of the production process and improving production efficiency.

[0015] 2. In the production of rubber products, different batches or sources of rubber materials may be used, and the properties of each material may vary. Adjusting the components by rotating the threaded rod can meet the production needs of different rubber materials and product specifications, improving the flexibility and adaptability of production, and reducing the time and cost waste caused by changing equipment and complex debugging. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a rubber injection mold for producing high boots;

[0017] Figure 2 This is a schematic diagram of the structure of an injection component in a rubber injection mold for producing high boots;

[0018] Figure 3 This is a schematic diagram of the structure of an adjustment component in a rubber injection mold for producing high boots;

[0019] Figure 4 This is a schematic diagram of the piston structure in a rubber injection mold for producing high boots.

[0020] In the diagram: 1. Housing; 2. First motor; 3. Reciprocating lead screw; 4. Moving frame; 5. Second motor; 6. First connecting rod; 7. Second connecting rod; 8. Threaded rod; 9. Mounting block; 10. Third connecting rod; 11. Push block; 12. Piston rod; 13. Sleeve; 14. Conveying pipe; 15. Storage box; 16. Fixed frame; 17. Push rod; 18. Sliding plate; 19. Ejection assembly; 20. Mounting mold. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a rubber injection mold for producing high boots, including a housing 1. A first motor 2 is installed at the top of the housing 1. The output end of the first motor 2 is connected to a reciprocating screw 3. When the first motor 2 is started, the output end of the first motor 2 drives the reciprocating screw 3 to rotate. A movable frame 4 is threadedly connected to the outer wall of the reciprocating screw 3. Since the movable frame 4 is threadedly connected to the reciprocating screw 3 and its bottom end is restricted by the sliding of the top of the housing 1, the movable frame 4 will move linearly along the reciprocating screw 3. A second motor 5 is fixedly connected to the inner wall of the movable frame 4. A first connecting rod 6 is fixedly connected to the output end of the second motor 5. A second connecting rod 7 is rotatably connected to the end of the first connecting rod 6 away from the second motor 5. A threaded rod 8 is threadedly connected to the output end of the second motor 5. A mounting block 9 is rotatably connected to one end of the threaded rod 8. The first connecting rod 7 is adjusted by rotating the threaded rod 8. The angle between the second link 7 and the first link 6 changes the push-out stroke. The end of the second link 7 away from the first link 6 is fixedly connected to the mounting block 9. After the moving frame 4 moves, the second motor 5 drives the first link 6 to rotate. The rotation of the first link 6 drives the mounting block 9 to move through the transmission of the second link 7. The side of the mounting block 9 away from the second link 7 is rotatably connected to the third link 10. The end of the third link 10 away from the mounting block 9 is rotatably connected to the push block 11. The outer wall of one side of the push block 11 is fixedly connected to the piston rod 12. The movement of the mounting block 9 is transmitted through the third link 10, causing the push block 11 to move linearly. The push block 11 drives the piston rod 12 to start reciprocating linear motion. The outer wall of the piston rod 12 is slidably connected to the sleeve 13. When the piston rod 12 moves forward, it can push out the rubber material inside the sleeve 13.

[0023] See Figure 1 , Figure 3 The top of the sleeve 13 is connected to a conveying pipe 14, and the end of the conveying pipe 14 away from the sleeve 13 is connected to a storage box 15. The inner bottom wall of the storage box 15 is a slope with an angle of 15 degrees. By utilizing the weight of the rubber itself, the rubber can automatically slide towards the conveying pipe 14, which improves the efficiency of rubber conveying, reduces energy consumption, ensures the smooth sliding of the rubber, and prevents the rubber from flowing too fast due to an excessively large angle, making it difficult to control. Under the combined influence of the negative pressure generated by the retraction of the piston rod 12, the weight of the rubber itself in the storage box 15, and the slope, the rubber flows from the storage box 15 into the sleeve 13 through the conveying pipe 14.

[0024] See Figure 1 A fixed frame 16 is fixedly connected to the end of the housing 1 away from the first motor 2. Two push rods 17 are fixedly connected to the outer wall of the fixed frame 16 near the first motor 2. The fixed frame 16 remains stationary to ensure the installation stability of the two push rods 17. When the mold needs to be closed, the push rods 17 extend outward. When the mold needs to be opened, the push rods 17 retract inward. The push rods 17 realize the separation and closure of the installation mold 20 through the telescopic movement, so that the rubber products can be smoothly formed and removed.

[0025] See Figure 1 Each of the two push rods 17 has a sliding plate 18 connected to one end away from the fixed frame 16. The inner wall of the sliding plate 18 is slidably connected to the fixed frame 16. An ejector assembly 19 is installed on the outer wall of the sliding plate 18 near the fixed frame 16. An installation mold 20 is installed on the outer wall of the sliding plate 18 away from the ejector assembly 19. A mold seat is installed on the outer wall of the fixed frame 16 near the installation mold 20. The push rods 17 extend and retract to move the sliding plate 18. The sliding plate 18 drives the installation mold 20 and the mold seat to open and close. The injection assembly injects the product into the cavity of the installation mold 20 and the mold seat. After molding, the installation mold 20 retracts, and the ejector assembly 19 ejects the product, completing one production cycle.

[0026] Working principle: Raw rubber is stored in storage box 15. When piston rod 12 retracts in sleeve 13, negative pressure is generated. Under the combined influence of negative pressure, rubber gravity, and slope, rubber flows from storage box 15 into sleeve 13 through conveying pipe 14. After moving frame 4 moves into position, second motor 5 drives first connecting rod 6 to rotate. This is transmitted through second connecting rod 7 to move mounting block 9, and then through third connecting rod 10 to move push block 11 in a straight line. This drives piston rod 12 to reciprocate in a straight line within sleeve 13. When piston rod 12 moves forward, it pushes out rubber material from sleeve 13 and injects it into the cavity formed by mounting mold 20 and mold seat, completing rubber injection molding. When it is necessary to adjust the ejection distance, for example, when the rubber's fluidity deteriorates after aging, the angle between second connecting rod 7 and first connecting rod 6 can be adjusted by rotating threaded rod 8, thereby changing the ejection stroke of third connecting rod 10 and changing the ejection distance.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A rubber injection mold for producing high boots, comprising a housing (1), characterized in that: A first motor (2) is installed at the top of the housing (1). The output end of the first motor (2) is connected to a reciprocating lead screw (3). A movable frame (4) is threaded onto the outer wall of the reciprocating lead screw (3). A second motor (5) is fixedly connected to the inner wall of the movable frame (4). A first connecting rod (6) is fixedly connected to the output end of the second motor (5). A second connecting rod (7) is rotatably connected to the end of the first connecting rod (6) away from the second motor (5). A threaded rod (7) is threaded onto the output end of the second motor (5). 8) One end of the threaded rod (8) is rotatably connected to the mounting block (9), the end of the second connecting rod (7) away from the first connecting rod (6) is fixedly connected to the mounting block (9), the side of the mounting block (9) away from the second connecting rod (7) is rotatably connected to the third connecting rod (10), the end of the third connecting rod (10) away from the mounting block (9) is rotatably connected to the push block (11), the outer wall of one side of the push block (11) is fixedly connected to the piston rod (12), and the outer wall of the piston rod (12) is slidably connected to the sleeve (13).

2. The rubber injection mold for producing high boots as described in claim 1, characterized in that: The top end of the sleeve (13) is connected to a conveying pipe (14), and the end of the conveying pipe (14) away from the sleeve (13) is connected to a storage box (15). The inner bottom wall of the storage box (15) is a slope.

3. The rubber injection mold for producing high boots as described in claim 2, characterized in that: A fixed frame (16) is fixedly connected to the end of the housing (1) away from the first motor (2), and two push rods (17) are fixedly connected to the outer wall of the fixed frame (16) near the first motor (2).

4. The rubber injection mold for producing high boots as described in claim 3, characterized in that: Both push rods (17) are connected to a sliding plate (18) at the end away from the fixed frame (16), and the inner wall of the sliding plate (18) is slidably connected to the fixed frame (16).

5. A rubber injection mold for producing high boots as described in claim 4, characterized in that: An ejector assembly (19) is installed on the outer wall of the sliding plate (18) near the fixed frame (16), an installation mold (20) is installed on the outer wall of the sliding plate (18) away from the ejector assembly (19), and a mold base is installed on the outer wall of the fixed frame (16) near the installation mold (20).

6. The rubber injection mold for producing high boots as described in claim 5, characterized in that: The outer wall of the first motor (2) is fixedly connected to the top of the housing (1), and the bottom of the movable frame (4) is slidably connected to the top of the housing (1).

7. A rubber injection mold for producing high boots as described in claim 6, characterized in that: The side of the second motor (5) away from the output end is fixedly connected to the inner wall of the moving frame (4), and one end of the piston rod (12) is sealed to the sleeve (13).

8. A rubber injection mold for producing high boots as described in claim 7, characterized in that: A bracket is installed on the bottom side of the storage box (15) away from the conveying pipe (14). The bracket is bolted to the storage box (15). The end of the storage box (15) away from the storage box (15) is fixedly connected to the top side of the movable frame (4).

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