Die structure for multi-machine co-extrusion of rubber

Abstract

The utility model discloses a mold structure for multi-machine co-extrusion of rubber, which relates to the technical field of rubber manufacturing and comprises a base, supporting legs, a shunting component and an adjusting component, the supporting legs are fixedly arranged at the bottom of the base, and the top of the base is fixedly connected with a feeding bin; the adjusting assembly is fixedly arranged on the outer surface of the flow dividing assembly and used for adjusting the rubber transportation flow. According to the utility model, the handle is manually grasped and the rotating disc is rotated, the disc drives the screw rod to rotate, the screw rod is in threaded connection with the sliding block, the rotation of the screw rod drives the sliding block to slide left and right in the sliding bracket, and the sliding block further drives the adjusting column to slide and adjust in the co-extrusion bin, so that the flow of a runner is controlled. The device can freely adjust the discharging size of the runner, the production flexibility is remarkably improved, material changes can be conveniently and timely adjusted, and the response speed of a production line is increased. Therefore, not only is the production efficiency improved, but also great convenience is brought to the work of operators.

Description

Technical Field

[0001] This utility model relates to the field of rubber manufacturing technology, specifically a mold structure for multi-machine co-extrusion of rubber. Background Technology

[0002] Multi-machine co-extrusion technology is an important process in the manufacturing of rubber products. It involves simultaneously extruding multiple rubber materials with different properties to form rubber products with composite structures. This process is widely used in industries such as automotive, construction, and electronics, and it has significant advantages, especially in the production of rubber sealing strips, pipes, and cable sheaths. Traditional single-machine extrusion processes cannot meet the diverse performance, functional, and structural requirements of products, while multi-machine co-extrusion enables the seamless combination of different rubber materials in a single molding process.

[0003] In existing technologies, various materials can be pre-treated in different extruders and combined in the co-extrusion die according to design requirements through multi-machine co-extrusion dies, thereby forming products with different functional levels. A co-extrusion die for co-extruded profiles, described in patent document CN220390263U, controls a motor and an electric heating block. The motor drives a connecting rod to rotate, and a circular block is welded to the bottom of the connecting rod. The rotation of the circular block pushes a sliding column within a limiting cylinder to cut off the feed of auxiliary materials. This allows for the addition of necessary auxiliary materials, offering strong controllability. The electric heating block prevents material solidification and increases the feeding speed. A limiting plate rotates via a shaft. When placed into the die, a second spring is installed between the limiting plate and the limiting frame. The second spring abuts against the limiting plate, locking the die and effectively preventing instability during operation.

[0004] However, this device is not convenient for adjusting the flow channel during use, which may reduce the flexibility of the production process. When it is necessary to adjust production parameters to cope with changes in different product specifications or materials, the inability to quickly and effectively adjust the flow channel will affect the rapid response capability of the production line.

[0005] Based on this, a mold structure for multi-machine co-extrusion of rubber is provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this utility model is to provide a mold structure for multi-machine co-extrusion of rubber to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A mold structure for multi-machine co-extrusion of rubber includes: a base;

[0009] Support feet are fixedly installed at the bottom of the base, and a feeding hopper is fixedly connected to the top of the base;

[0010] The diversion component is fixedly installed on the outer surface of the feed hopper and is used to divert and transport the rubber material.

[0011] The regulating component is fixedly installed on the outer surface of the diverting component and is used to regulate the flow rate of the rubber transport.

[0012] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0013] In one alternative: the flow divider includes a feed inlet, which is fixedly disposed on the outer surface of the feed hopper. A top cover is fixedly connected to the top of the feed hopper. A co-extrusion hopper is fixedly connected to the right side of the feed hopper. An air inlet is connected to the top of the co-extrusion hopper. A flow channel is opened inside the co-extrusion hopper. The left end of the flow channel is connected to the feed inlet, and the right end of the flow channel is connected to the die core.

[0014] In one alternative embodiment: the adjustment assembly includes a sliding bracket, which is fixedly mounted on the outer surface of the co-extrusion chamber. A slider is slidably connected to the inner surface of the sliding bracket, and a rotating disk is rotatably connected to the outer surface of the sliding bracket. A handle is fixedly connected to the outer surface of the rotating disk, and a screw is fixedly connected to the left side of the rotating disk. The outer surface of the screw is threadedly connected to the inner surface of the slider, and an adjustment column is fixedly connected to the left side of the slider.

[0015] In one alternative: an extrusion assembly is fixedly installed on the right side of the co-extrusion chamber for extruding and feeding rubber.

[0016] In one alternative: the extrusion assembly includes an extrusion chamber, which is fixedly disposed on the right side of the co-extrusion chamber, and an outlet is fixedly connected to the outer surface of the extrusion chamber.

[0017] In one alternative: the runners start from different locations in the mold and gradually converge towards the center point of the mold.

[0018] In one alternative: the inner surface of the sliding bracket is provided with a sliding groove that is adapted to the slider.

[0019] In one alternative: the co-extrusion chamber has a sliding groove adapted to the adjusting column, and the outer surface of the adjusting column is provided with a sealing ring.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model involves feeding different types of rubber materials into the inlet, where the materials flow through channels from various positions within the mold, gradually converging towards the center point and being injected into the mold core to complete the molding process. Throughout the process, the material flows smoothly and is ultimately discharged through the outlet on the extrusion chamber. The device features a simple design and easy operation, greatly improving operational convenience and providing significant benefits to operators.

[0022] 2. This invention involves manually gripping the handle and rotating the rotating disc, which in turn drives the screw to rotate. Since the screw is threadedly connected to the slider, the screw's rotation causes the slider to slide left and right within the sliding bracket. The slider, in turn, drives the adjusting column to slide and adjust within the co-extrusion chamber, thus controlling the flow rate of the extrusion channel. This device allows for free adjustment of the discharge size of the flow channel, significantly improving production flexibility, facilitating timely adjustments to material changes, and accelerating the production line's response speed. This not only improves production efficiency but also greatly facilitates the work of operators. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the flow channel structure in this utility model.

[0025] Figure 3 This is a schematic diagram of the adjustment component in this utility model.

[0026] Figure 4 This is a schematic diagram of the discharge port structure in this utility model.

[0027] Figure label annotations: 1. Base; 2. Support foot; 3. Feed hopper; 4. Feed port; 5. Top cover; 6. Co-extrusion hopper; 7. Air inlet; 8. Runner; 9. Die core; 10. Sliding bracket; 11. Slider; 12. Rotating disc; 13. Handle; 14. Screw; 15. Adjusting column; 16. Extrusion hopper; 17. Discharge port. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] In one embodiment, such as Figures 1-4As shown, a mold structure for multi-machine co-extrusion of rubber includes: a base 1, a support foot 2, a flow-diverting component, and an adjusting component; the support foot 2 is fixedly disposed at the bottom of the base 1, and a feed hopper 3 is fixedly connected to the top of the base 1; the flow-diverting component is fixedly disposed on the outer surface of the feed hopper 3 for diverting and transporting rubber material; the adjusting component is fixedly disposed on the outer surface of the flow-diverting component for adjusting the flow rate of rubber transport; the support foot 2 is provided for fixing and supporting the device, and the support foot 2 is made of rubber to prevent slippage to a certain extent;

[0030] In one embodiment, such as Figure 2 As shown, the flow distribution assembly includes a feed inlet 4, which is fixedly installed on the outer surface of the feed chamber 3. A top cover 5 is fixedly connected to the top of the feed chamber 3. A co-extrusion chamber 6 is fixedly connected to the right side of the feed chamber 3. An air inlet 7 is connected to the top of the co-extrusion chamber 6. A flow channel 8 is opened inside the co-extrusion chamber 6. The left end of the flow channel 8 is connected to the feed inlet 4, and the right end of the flow channel 8 is connected to the mold core 9. The flow channel 8 starts from different positions of the mold and gradually converges towards the center point of the mold, which facilitates the extrusion molding of various materials. The feed inlet 4 is designed to facilitate the input of different types of materials. The top cover 5 is designed to facilitate the opening of the feed chamber 3. The air inlet 7 is designed to facilitate the timely discharge of the generated trace amounts of decomposition gas to avoid defects. The mold core 9 is designed to prevent it from falling out of the mold before solidification, ensuring that the rubber can be molded according to the predetermined shape and size.

[0031] In one embodiment, such as Figure 3 As shown, the adjustment assembly includes a sliding bracket 10, which is fixedly mounted on the outer surface of the co-extrusion chamber 6. A slider 11 is slidably connected to the inner surface of the sliding bracket 10. A rotating disk 12 is rotatably connected to the outer surface of the sliding bracket 10. A handle 13 is fixedly connected to the outer surface of the rotating disk 12. A screw 14 is fixedly connected to the left side of the rotating disk 12. The outer surface of the screw 14 is threadedly connected to the inner surface of the slider 11. An adjustment column 15 is fixedly connected to the left side of the slider 11. An extrusion assembly is fixedly mounted on the right side of the co-extrusion chamber 6 for extruding and feeding rubber. The inner surface of the sliding bracket 10 is provided with a sliding groove that matches the slider 11, so that the slider 11 can slide and adjust on the inner surface of the sliding bracket 10. The co-extrusion chamber 6 is provided with a sliding groove that matches the adjusting column 15. The outer surface of the adjusting column 15 is provided with a sealing ring, so that the adjusting column 15 can slide and adjust, thereby controlling the flow rate of the flow channel. The rotating disc 12 is provided to drive the screw 14 to rotate. The handle 13 is provided to facilitate manual adjustment by the operator. The screw 14 is provided to drive the slider 11 to slide and adjust when rotating.

[0032] In one embodiment, such as Figure 4As shown, the extrusion assembly includes an extrusion chamber 16, which is fixedly disposed on the right side of the co-extrusion chamber 6, and a discharge port 17 is fixedly connected to the outer surface of the extrusion chamber 16.

[0033] The above embodiment discloses a mold structure for multi-machine co-extrusion of rubber. Different types of rubber materials are fed into the mold through the feed inlet 4. The flow channels 8 originate from different positions within the mold and gradually converge towards the center point, discharging the material into the mold core 9 for molding. Finally, the material is discharged through the discharge outlet 17 on the extrusion chamber 16. This device has a simple structure and is easy to operate, providing convenience for operators. By manually grasping the handle 13 and rotating the rotating disc 12, the disc 12 drives the screw 14 to rotate. Since the screw 14 is threadedly connected to the slider 11, the screw 14 drives the slider 11 to slide left and right on the inner surface of the sliding support 10. This causes the slider 11 to drive the adjusting column 15 to slide and adjust inside the co-extrusion chamber 6, thereby controlling the flow rate of the flow channel 8. This device can freely adjust the discharge size of the flow channel 8, improving production flexibility, allowing for timely adjustments to material changes, enhancing the rapid response capability of the production line, and providing convenience for operators.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A die structure for multi-machine co-extrusion of rubber, comprising: Base (1); Support foot (2), the support foot (2) is fixedly installed at the bottom of the base (1), and the top of the base (1) is fixedly connected to the feed hopper (3); The feature is that it also includes a diversion component, which is fixedly disposed on the outer surface of the feed hopper (3) for diverting and transporting the rubber material; An adjustment component is fixedly disposed on the outer surface of the diversion component and is used to adjust the flow rate of the rubber transport.

2. The die structure for multi-machine co-extrusion of rubber according to claim 1, characterized in that, The diversion component includes a feed inlet (4), which is fixedly disposed on the outer surface of the feed bin (3). A top cover (5) is fixedly connected to the top of the feed bin (3). A co-extrusion bin (6) is fixedly connected to the right side of the feed bin (3). An air inlet (7) is connected to the top of the co-extrusion bin (6). A flow channel (8) is opened inside the co-extrusion bin (6). The left end of the flow channel (8) is connected to the feed inlet (4), and the right end of the flow channel (8) is connected to the mold core (9).

3. The die structure for multi-machine co-extrusion of rubber according to claim 1, characterized in that, The adjustment assembly includes a sliding bracket (10), which is fixedly disposed on the outer surface of the co-extrusion chamber (6). A slider (11) is slidably connected to the inner surface of the sliding bracket (10). A rotating disk (12) is rotatably connected to the outer surface of the sliding bracket (10). A handle (13) is fixedly connected to the outer surface of the rotating disk (12). A screw (14) is fixedly connected to the left side of the rotating disk (12). The outer surface of the screw (14) is threadedly connected to the inner surface of the slider (11). An adjustment column (15) is fixedly connected to the left side of the slider (11).

4. The die structure for multi-machine co-extrusion of rubber according to claim 2, characterized in that, An extrusion assembly is fixedly installed on the right side of the co-extrusion chamber (6) for extruding and feeding rubber.

5. The die structure for multi-machine co-extrusion of rubber according to claim 4, characterized in that, The extrusion assembly includes an extrusion chamber (16), which is fixedly disposed on the right side of the co-extrusion chamber (6), and a discharge port (17) is fixedly connected to the outer surface of the extrusion chamber (16).

6. The die structure for multi-machine co-extrusion of rubber according to claim 2, characterized in that, The flow channels (8) start from different positions of the mold and gradually converge toward the center point of the mold.

7. The die structure for multi-machine co-extrusion of rubber according to claim 3, characterized in that, The inner surface of the sliding bracket (10) is provided with a sliding groove that is adapted to the slider (11).

8. The die structure for multi-machine co-extrusion of rubber according to claim 3, characterized in that, The co-extrusion chamber (6) has a sliding groove inside that is adapted to the adjusting column (15), and the outer surface of the adjusting column (15) is provided with a sealing ring.

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