A quick-change rubber cold-feed extruder die

Abstract

This invention relates to the field of extruder die technology and discloses a quick-change rubber cold-feed extruder die. It includes an extruder die with an extrusion material opening inside. A fixed plate is fixedly connected to the front surface of the extruder die, and a first joint ball is movably connected to the upper surface of the fixed plate. By gripping the connecting rod, a movable extension rod extends from inside the receiving sliding rod, allowing adjustment of its length. This enables the cleaning shovel to be moved to the surface of the extrusion material opening. The angle of the cleaning shovel can be adjusted at any time via the first and second joint balls. The length of the movable extension rod is controlled according to the required cleaning height, facilitating the cleaning of the material solution at the extrusion material opening. Simultaneously, the cleaning shovel can be used to cut the material extruded from the extruder die.

Description

Technical Field

[0001] This invention relates to the field of extruder die technology, specifically a quick-change rubber cold-feed extruder die. Background Technology

[0002] Cold-feed rubber extruders are widely used in my country's rubber industry. In radial tire production, the tread extrusion, composite tread extrusion, corner rubber, and various types of rubber have annular grooves on their corresponding helical sections. Pins are directly inserted into these annular grooves, and the rubber compound undergoes lateral, flow, and rotational motions under the action of these pins. Due to the combined effect of these three motions, the core formed during the rubber extrusion process can be effectively broken down. Each time this core passes through a pin, it is sheared once. With each rotation of the screw, the rubber compound is divided and sheared by a handful of pins, which strengthens kneading and accelerates the flow of the rubber compound in the screw's thread grooves. Therefore, high-quality mixed, kneaded, and plasticized rubber compounds can be obtained. Cold-feed rubber extruders are commonly used rubber extrusion molding equipment and can be used for extruding and molding rubber products and blanks. Before production, the equipment of a cold-feed rubber extruder must be preheated. Only when the equipment temperature reaches the required value can the rubber extruder be started and rubber be filled into the feeding system of the rubber extruder. Rubber is fed to the barrel by a forced feed roller. As the extruder screw rotates, the rubber moves forward, is heated and plasticized, and undergoes a series of processing steps including shearing, compression, and mixing by the screw before being extruded into the desired product shape at the rubber extruder die. Since the rubber extruder is an extrusion molding device in rubber product manufacturing, it is usually located at the first station on the production line, hence the name "rubber extruder head." In the production of rubber sealing rings, extruders are commonly used to produce raw materials. Different models of extruder dies are used depending on the product specifications. Different specifications of raw materials are produced by changing the cavity die. When producing a variety of product specifications, frequent changes of the extruder die are necessary.

[0003] When the die of a rubber cold feed extruder is in use, the extruded material is easily adsorbed and condensed on the inner wall of the die. This can reduce the production quality of rubber seals during the production of rubber seals. At the same time, the extruded material opening of the die is prone to sticking with some material, making it difficult to clean the material adhering to the die and resulting in inconvenience in cleaning the die. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a quick-change die for a rubber cold-feed extruder, which solves the problems of cleaning the raw material that has solidified on the inner wall of the die and scraping the raw material that sticks to the discharge port of the die.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a quick-change rubber cold-feed extruder die, including an extruder die head, the inside of the extruder die head is provided with an extrusion material opening, a fixed plate is fixedly connected to the front surface of the extruder die head, a first joint movable ball is movably connected to the upper surface of the fixed plate, a first connecting fixed mounting seat is provided on the upper surface of the first joint movable ball, a connecting support rod is fixedly connected to the upper surface of the first connecting fixed mounting seat, a second connecting fixed mounting seat is fixedly connected to the end of the connecting support rod away from the first connecting fixed mounting seat, and a second joint movable ball is movably connected inside the second connecting fixed mounting seat;

[0006] The upper surface of the second joint movable ball is provided with a storage sliding rod, and a movable extension rod is slidably connected inside the storage sliding rod. A cleaning shovel plate is fixedly connected to one end of the movable extension rod away from the storage sliding rod. Load-bearing plates are fixedly connected to both sides of the movable extension rod, and the load-bearing plates are located below the cleaning shovel plate. A connecting pull rod is fixedly connected to the front surface of the movable extension rod.

[0007] Preferably, a sealing baffle is slidably connected to the front surface of the extruder die.

[0008] Preferably, the sealing baffle has a first mounting and fastening threaded rod internally connected to the die head of the extruder, and the first mounting and fastening threaded rod is threadedly connected to the die head of the extruder.

[0009] Preferably, a movable push rod is slidably connected inside the blocking baffle, and a push fixing seat is fixedly connected to one end of the movable push rod near the blocking baffle.

[0010] Preferably, the end of the movable push rod away from the push fixed seat is fixedly connected to a connecting seat, and the rear surface of the connecting seat is slidably connected to a first expansion movable cleaning plate.

[0011] Preferably, a spring is fixedly connected to the lower surface of the first expanding movable cleaning plate, and a second expanding movable cleaning plate is fixedly connected to the end of the spring away from the first expanding movable cleaning plate, and the second expanding movable cleaning plate is slidably connected to the connecting seat.

[0012] Preferably, the lower surface of the second expanding movable cleaning plate and the upper surface of the first expanding movable cleaning plate are both provided with friction cleaning sleeves.

[0013] Preferably, both sides of the extruder die are fixedly connected to a mounting threaded plate, and the internal thread of the mounting threaded plate is connected to a second mounting fastening threaded rod.

[0014] Preferably, a sealing gasket is provided on the rear surface of the extruder die.

[0015] Preferably, a magnetic block is provided on the rear surface of the extruder die.

[0016] The beneficial effects of this invention are:

[0017] 1. This invention utilizes the movable connection between the first joint bead and the fixed plate to adjust the angle of the connecting support rod. The second joint bead allows for adjustment of the angle of the receiving sliding rod. By gripping the connecting rod, the movable extension rod extends from the inside of the receiving sliding rod, allowing for adjustment of its length. This enables the cleaning shovel to be moved to the surface of the extruded material opening. The angle of the cleaning shovel can be adjusted at any time via the first and second joint bead. The length of the movable extension rod can be controlled according to the required cleaning height, facilitating the cleaning shovel's cleaning of the raw material solution at the extruded material opening. Simultaneously, the cleaning shovel can be used to cut the raw material extruded from the extruder die.

[0018] 2. In this invention, the first mounting fastening threaded rod is unscrewed to separate the sealing baffle from the extruder die head. The extruder die head is pushed downwards to block the extruded material opening. Holding the push fixing seat allows the moving push rod to move, which in turn moves the first and second expansion movable cleaning plates into the interior of the extruded material opening. Utilizing the elasticity of the spring, the diameters of the first and second expansion movable cleaning plates can be adjusted according to the size of the extruded material opening, allowing them to extend into the interior of the extruded material opening. This allows the friction cleaning sleeve to fit against the inner wall of the extruded material opening. Through the reciprocating movement of the push plate, the friction cleaning sleeve can grind and clean the material clumps remaining on the inner wall of the extruder die head.

[0019] 3. In this invention, the magnetic block is attached to the output end of the extruder. Since the extruder has a metal shell, the magnetic block can be attracted to the output end of the extruder. When the magnetic block is attracted to the extruder, the sealing gasket can improve the fit between the extruder die and the extruder output end. The magnetic block can be used to pre-fix the extruder die, which is convenient for the installation and use of the extruder die. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 for Figure 1Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic diagram of the connecting support rod structure of the present invention;

[0023] Figure 4 This is a rear view schematic diagram of the sealing baffle structure of the present invention;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 This is a schematic diagram of the rear view of the extruder die head structure of the present invention.

[0026] The components include: 1. Extruder die head; 2. First mounting and fastening threaded rod; 3. Sealing baffle; 4. Moving push rod; 5. Pushing fixed seat; 6. Extrusion material opening; 7. Second joint movable ball; 8. Second connecting fixed mounting seat; 9. Connecting support rod; 10. First connecting fixed mounting seat; 11. First joint movable ball; 12. Retractable sliding rod; 13. Moving extension rod; 14. Cleaning shovel plate; 15. Load-bearing plate; 16. Connecting pull rod; 17. Connecting seat; 18. First expanding movable cleaning plate; 19. Sealing gasket; 20. Magnetic block; 21. Spring; 22. Friction cleaning sleeve plate; 23. Fixed plate; 24. Second expanding movable cleaning plate; 25. Mounting threaded plate; 26. Second mounting and fastening threaded rod. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0028] Please see Figures 1-6The device includes an extruder die 1, with an extrusion material opening 6 inside the die 1. A sealing baffle 3 is slidably connected to the front surface of the die 1. A first mounting fastening threaded rod 2 is threadedly connected inside the sealing baffle 3 and is threaded to the extruder die 1. A movable push rod 4 is slidably connected inside the sealing baffle 3. A push fixing seat 5 is fixedly connected to one end of the movable push rod 4 near the sealing baffle 3, and a connecting seat 17 is fixedly connected to the other end of the movable push rod 4 away from the push fixing seat 5. A first expanding movable cleaning plate 18 is slidably connected to the rear surface of 7. A spring 21 is fixedly connected to the lower surface of the first expanding movable cleaning plate 18. A second expanding movable cleaning plate 24 is fixedly connected to the end of the spring 21 away from the first expanding movable cleaning plate 18. The second expanding movable cleaning plate 24 is slidably connected to the connecting seat 17. Friction cleaning sleeves 22 are provided on the lower surface of the second expanding movable cleaning plate 24 and the upper surface of the first expanding movable cleaning plate 18. When the extruder die 1 is in use, the sealing baffle 3 can be pushed upward and the first sealing plate 24 can be turned upward. The fastening threaded rod 2 can be threadedly connected to the extruder die 1 to fix the sealing baffle 3. The extruded material can be discharged and transported through the extrusion material opening 6. After the extruder die 1 is used, the first fastening threaded rod 2 is unscrewed to separate the sealing baffle 3 from the extruder die 1. The extruder die 1 is pushed down to block the extrusion material opening 6. Holding the push fixing seat 5 can push the moving push rod 4 to move, so that the moving push rod 4 can drive the first expansion movable cleaning plate 18 and the second expansion movable cleaning plate. 24. Move into the interior of the extrusion material opening 6. Utilize the elasticity of the spring 21 to allow the diameter of the first expansion movable cleaning plate 18 and the second expansion movable cleaning plate 24 to be adjusted according to the size of the extrusion material opening 6. This allows the first expansion movable cleaning plate 18 and the second expansion movable cleaning plate 24 to extend into the interior of the extrusion material opening 6, so that the friction cleaning sleeve 22 can fit against the inner wall of the extrusion material opening 6. By pushing the plate to move back and forth, the friction cleaning sleeve 22 can grind and clean the material clumps remaining on the inner wall of the extruder die head 1.

[0029] A fixing plate 23 is fixedly connected to the front surface of the extruder die head 1. A first joint movable ball 11 is movably connected to the upper surface of the fixing plate 23. A first connecting fixed mounting seat 10 is provided on the upper surface of the first joint movable ball 11. A connecting support rod 9 is fixedly connected to the upper surface of the first connecting fixed mounting seat 10. A second connecting fixed mounting seat 8 is fixedly connected to the end of the connecting support rod 9 away from the first connecting fixed mounting seat 10. A second joint movable ball 7 is movably connected inside the second connecting fixed mounting seat 8. A receiving sliding rod 12 is provided on the upper surface of the second joint movable ball 7. A movable extension rod 13 is slidably connected inside the receiving sliding rod 12. A cleaning shovel plate 14 is fixedly connected to the end of the movable extension rod 13 away from the receiving sliding rod 12. Load-bearing plates 15 are fixedly connected to both sides of the movable extension rod 13, and the load-bearing plates 15 are located below the cleaning shovel plate 14. A connecting rod 16 is fixedly connected to the front surface of the long rod 13. The first joint movable ball 11 is movably connected to the fixed plate 23, allowing the angle of the connecting support rod 9 to be adjusted. The second joint movable ball 7 allows the angle of the receiving sliding rod 12 to be adjusted. By holding the connecting rod 16, the moving extension rod 13 extends from the inside of the receiving sliding rod 12, allowing the length of the moving extension rod 13 to be adjusted. This allows the cleaning shovel plate 14 to be moved to the surface of the extrusion material opening 6. The angle of the cleaning shovel plate 14 can be adjusted at any time through the first joint movable ball 11 and the second joint movable ball 7. The length of the moving extension rod 13 can be controlled according to the required cleaning height, so that the cleaning shovel plate 14 can easily clean the raw material solution at the extrusion material opening 6. At the same time, the cleaning shovel plate 14 can be used to cut the raw material extruded by the extruder die 1.

[0030] Both sides of the extruder die 1 are fixedly connected with mounting threaded plates 25. The internal threads of the mounting threaded plates 25 are connected with second mounting fastening threaded rods 26. A sealing gasket 19 is provided on the rear surface of the extruder die 1, and a magnetic block 20 is provided on the rear surface of the extruder die 1. The magnetic block 20 is attached to the output end of the extruder. Since the extruder has a metal shell, the magnetic block 20 can be attracted to the output end of the extruder. When the magnetic block 20 is attracted to the extruder, the sealing gasket 19 can improve the fit between the extruder die 1 and the extruder output end. The magnetic block 20 can be used to pre-fix the extruder die 1. Tightening the second mounting fastening threaded rod 26 can be connected to the mounting point of the extruder die 1, so that the extruder die 1 can be fixed for use, and at the same time, it is convenient to replace the extruder die 1.

[0031] In use, the magnetic block 20 is attached to the output end of the extruder, so that the magnetic block 20 can attract the output end of the extruder. When the magnetic block 20 is attracted to the extruder, the sealing gasket 19 can improve the fit between the extruder die 1 and the extruder output end. Tightening the second mounting fastening threaded rod 26 can fix the extruder die 1 at the mounting point. The first joint movable ball 11 is connected to the fixed plate 23, so that the angle of the connecting support rod 9 can be adjusted. The second joint movable ball 7 can be used to adjust the angle of the receiving sliding rod 12. Holding the connecting pull rod 16, the moving extension rod 13 extends from the inside of the receiving sliding rod 12, so that the length of the moving extension rod 13 can be adjusted. The cleaning shovel plate 14 is moved to the surface of the extrusion material opening 6. The angle of the cleaning shovel plate 14 can be adjusted at any time through the first joint movable ball 11 and the second joint movable ball 7. The length of the moving extension rod 13 can be adjusted according to the required cleaning height. The system controls the movement of the cleaning blade 14 to facilitate the cleaning of the raw material solution at the extrusion opening 6. When the extruder die 1 is in use, the sealing baffle 3 can be pushed upwards, and the first mounting fastening threaded rod 2 can be screwed into the extruder die 1 to fix the sealing baffle 3. The raw material extruded by the extruder can be discharged and transported through the extrusion opening 6. After the extruder die 1 is used up, the first mounting fastening threaded rod 2 can be unscrewed to separate the sealing baffle 3 from the extruder die 1. The extruder die 1 can be pushed downwards to block the extrusion opening 6. Holding the push fixing seat 5 can push the moving push rod 4 to move, so that the moving push rod 4 can drive the first expanding movable cleaning plate 18 and the second expanding movable cleaning plate 24 to move into the interior of the extrusion opening 6, so that the friction cleaning sleeve 22 can fit against the inner wall of the extrusion opening 6. Through the reciprocating movement of the push plate, the friction cleaning sleeve 22 can grind and clean the raw material clumps remaining on the inner wall of the extruder die 1.

[0032] The above description is only a specific embodiment of the present invention. Various examples and illustrations do not constitute a limitation on the substantive content of the present invention. Those skilled in the art can make modifications or variations to the above-described specific embodiments after reading the specification without departing from the substance and scope of the invention.

Claims

1. A quick-change rubber cold-feed extruder die, comprising an extruder die head (1), characterized in that: The extruder die (1) has an extrusion material opening (6) inside. A fixing plate (23) is fixedly connected to the front surface of the extruder die (1). A first joint movable ball (11) is movably connected to the upper surface of the fixing plate (23). A first connecting fixed mounting seat (10) is provided on the upper surface of the first joint movable ball (11). A connecting support rod (9) is fixedly connected to the upper surface of the first connecting fixed mounting seat (10). A second connecting fixed mounting seat (8) is fixedly connected to the end of the connecting support rod (9) away from the first connecting fixed mounting seat (10). A second joint movable ball (7) is movably connected inside the second connecting fixed mounting seat (8). The upper surface of the second joint movable ball (7) is provided with a storage sliding rod (12), and a movable extension rod (13) is slidably connected inside the storage sliding rod (12). A cleaning shovel plate (14) is fixedly connected to one end of the movable extension rod (13) away from the storage sliding rod (12). A load-bearing plate (15) is fixedly connected to both sides of the movable extension rod (13), and the load-bearing plate (15) is located below the cleaning shovel plate (14). A connecting pull rod (16) is fixedly connected to the front surface of the movable extension rod (13).

2. The quick-change rubber cold-feed extruder die according to claim 1, characterized in that: A sealing baffle (3) is slidably connected to the front surface of the extruder die (1).

3. The quick-change rubber cold-feed extruder die according to claim 2, characterized in that: The sealing baffle (3) has a first mounting fastening threaded rod (2) internally threaded, and the first mounting fastening threaded rod (2) is threadedly connected to the extruder die head (1).

4. The quick-change rubber cold-feed extruder die according to claim 3, characterized in that: The sealing baffle (3) is slidably connected to a movable push rod (4), and a push fixing seat (5) is fixedly connected to one end of the movable push rod (4) near the sealing baffle (3).

5. The quick-change rubber cold-feed extruder die according to claim 4, characterized in that: The end of the movable push rod (4) away from the push fixed seat (5) is fixedly connected to a connecting seat (17), and the rear surface of the connecting seat (17) is slidably connected to a first expansion movable cleaning plate (18).

6. The quick-change rubber cold-feed extruder die according to claim 5, characterized in that: A spring (21) is fixedly connected to the lower surface of the first expansion movable cleaning plate (18), and a second expansion movable cleaning plate (24) is fixedly connected to the end of the spring (21) away from the first expansion movable cleaning plate (18), and the second expansion movable cleaning plate (24) is slidably connected to the connecting seat (17).

7. A quick-change rubber cold-feed extruder die according to claim 6, characterized in that: The lower surface of the second expansion movable cleaning plate (24) and the upper surface of the first expansion movable cleaning plate (18) are both provided with friction cleaning sleeves (22).

8. The quick-change rubber cold-feed extruder die according to claim 1, characterized in that: Both sides of the extruder die (1) are fixedly connected to a mounting thread plate (25), and the mounting thread plate (25) is internally threaded with a second mounting fastening thread rod (26).

9. A quick-change rubber cold-feed extruder die according to claim 1, characterized in that: A sealing gasket (19) is provided on the rear surface of the extruder die (1).

10. A quick-change rubber cold-feed extruder die according to claim 1, characterized in that: A magnetic block (20) is provided on the rear surface of the extruder die (1).

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