Rubber extruder feeding hopper capable of preventing feeding blockage
By introducing a servo motor-driven irregularly shaped turntable and belt drive system into the feed hopper of a rubber extruder, the problems of feeding blockage and uneven raw material distribution were solved, and automatic screening and pushing were realized, thereby improving processing quality and efficiency.
Patent Information
- Application Number
- CN202520186390.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Existing twin-screw extruders are prone to material blockage, requiring manual cleaning, which affects work efficiency. Furthermore, the lack of screening function leads to uneven raw material particle size, affecting the quality of the finished product.
A feed hopper for a rubber extruder was designed to prevent material blockage. A servo motor-driven shaped turntable drives a filter screen to vibrate vertically for screening, and a belt drive pusher plate pushes the raw material into the mixing chamber, thus avoiding material blockage.
The automatic screening function of the feeding hopper is realized, which ensures the uniformity of raw material particle size, avoids material blockage, and improves processing quality and work efficiency.
Smart Images

Figure CN223763738U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extruder feed hopper technology, and in particular to a rubber extruder feed hopper for preventing feed blockage. Background Technology
[0002] Rubber extruders are a fundamental piece of equipment in the rubber industry and a key component affecting product quality. They play a crucial role in the production of tires and rubber products. Materials are fed into the hopper, and the extruder's internal components agitate the material, causing the finished product to be extruded from the outlet. However, existing twin-screw extruders are prone to material blockage during operation, requiring manual cleaning and reducing efficiency. Furthermore, twin-screw extruders lack screening capabilities, resulting in uneven raw material particle size and impacting finished product quality. Therefore, we propose a rubber extruder feed hopper design to prevent material blockage. Utility Model Content
[0003] To address the aforementioned problems, this invention provides a rubber extruder feed hopper designed to prevent material blockage during feeding. This invention solves the problem that existing twin-screw extruder feed devices are prone to material blockage during operation, requiring manual cleaning before continued use and thus reducing work efficiency. Furthermore, twin-screw extruder feed devices lack screening capabilities, resulting in uneven raw material particle size and affecting finished product quality.
[0004] This utility model discloses a rubber extruder feed hopper for preventing feed blockage, comprising an extruder body, a guide trough located above the mixing chamber, a feed trough located above the guide trough, a motor located on one side of the lower end of the feed trough, the motor's rotating shaft passing through the feed trough and fixedly connected to a first shaft, a support ring located above the first shaft located inside the feed trough, four support rods arranged in a matrix above the support ring, connecting rings sleeved on the four support rods, a filter screen located in the middle of the connecting rings, a shaped turntable located in the middle of the first shaft, a second shaft inserted into the upper end of the guide trough, a first pulley located at the end of the first shaft away from the motor, a second pulley located on the second shaft, the first pulley and the second pulley being connected by belt drive, and multiple push plates arranged in a matrix located at the end of the second shaft inside the guide trough.
[0005] In the above scheme, the support rod is fitted with a spring between the support ring and the connecting ring.
[0006] In the above scheme, the connecting ring is provided with a fixing plate above the irregular turntable.
[0007] In the above scheme, the upper part of the support rod is fixedly connected to the limiting block.
[0008] In the above scheme, the lower end of the feed trough is set as an inverted cone shape.
[0009] In the above scheme, the motor is a servo motor.
[0010] The advantages and beneficial effects of this utility model are as follows: This utility model provides a rubber extruder feed hopper that prevents material blockage. A rotating, irregularly shaped turntable pushes a fixed plate, and the transmission of the fixed plate causes the connecting ring and filter screen to vibrate vertically. This vibration of the filter screen helps to screen the raw material. Through belt transmission, a second pulley also rotates, and under the drive of the second pulley, a second shaft drives a pusher plate to rotate. The rotating pusher plate pushes the raw material inside the feed trough, allowing it to enter the mixing chamber of the extruder body. This type of extruder feed hopper has a simple structure, is easy to operate, and provides good screening effect, ensuring the uniformity of rubber raw material particle size. The pusher plate prevents material blockage inside the feed hopper, thus improving the processing quality of the extruder. Attached Figure Description
[0011] 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.
[0012] Figure 1 This is the front view of the present invention;
[0013] Figure 2 This is a schematic diagram of the material guide trough and the material feed trough of this utility model;
[0014] Figure 3 This is a cross-sectional view of the guide trough and feed trough of this utility model;
[0015] Figure 4 This is a schematic diagram of part A of the present invention.
[0016] In the diagram: 1. Extruder body; 2. Feed chute; 3. Feed chute; 4. Motor.
[0017] 5. First shaft; 6. Support ring; 7. Support rod; 8. Connecting ring
[0018] 9. Filter screen; 10. Spring; 11. Irregularly shaped turntable; 12. Second shaft.
[0019] 13. First pulley; 14. Second pulley; 15. Belt; 16. Push plate
[0020] 17. Fixing plate 18. Limiting block. Detailed Implementation
[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0022] like Figure 1-4 As shown, this utility model is a rubber extruder feed hopper for preventing feed blockage. It includes an extruder body 1, a guide trough 2 located above the mixing chamber, a feed trough 3 above the guide trough 2, a motor 4 located on one side of the lower end of the feed trough 3, and a rotating shaft of the motor 4 passing through the feed trough 3 and fixedly connected to a first shaft 5. Both ends of the first shaft 5 are movably connected to the side walls of the feed trough 3. A support ring 6 is located inside the feed trough 3 above the first shaft 5, and four support rods 7 arranged in a matrix above the support ring 6. Connecting rings 8 are sleeved on the four support rods 7, and the connecting rings 8 are movably connected to the support rods 7, allowing the connecting rings 8 to move vertically on the support rods 7. A filter screen 9 is located in the middle of the connecting ring 8, and a shaped turntable 11 is located in the middle of the first shaft 5. When the motor 4 is working, it drives the first shaft 5 to rotate, causing the shaped turntable 11 to rotate as well. The filter screen 9 and the connecting ring 8 can be pushed, so that the filter screen 9 can be shaken vertically, and the raw material can be screened by the shaking of the filter screen 9. The upper end of the guide trough 2 is inserted with a second shaft 12, and the two ends of the second shaft 12 are movably connected to the side wall of the guide trough 2. The first shaft 5 is provided with a first belt pulley 13 at the end away from the motor 4, and the second shaft 12 is provided with a second belt pulley 14. The first belt pulley 13 and the second belt pulley 14 are connected by a belt 15. The second shaft 12 is provided with a plurality of push plates 16 arranged in a matrix at one end inside the guide trough 2. When the first shaft 5 rotates, the first shaft 5 drives the first belt pulley 13 to rotate. Through the transmission of the belt 15, the second belt pulley 14 also rotates. Under the drive of the second belt pulley 14, the second shaft 12 drives the push plate 16 to rotate. The rotating push plate 16 can push the raw material inside the feed trough 3, so that the raw material can enter the mixing chamber of the extruder body 1.
[0023] The support rod 7 is fitted with a spring 10 between the support ring 6 and the connecting ring 8. The two ends of the spring 10 are fixedly connected to the support ring 6 and the connecting ring 8 respectively. When the connecting ring 8 moves, the elastic force of the spring 10 causes the connecting ring 8 and the filter screen 9 to automatically reset.
[0024] The connecting ring 8 is provided with a fixing plate 17 above the irregular turntable 11. When the irregular turntable 11 rotates, the irregular turntable 11 can push the fixing plate 17, thereby enabling the connecting ring 8 to move vertically through the transmission of the fixing plate 17.
[0025] The upper part of the support rod 7 is fixedly connected to the limiting block 18. The limiting block 18 can limit the upper end of the support rod 7, thus preventing the connecting ring 8 from falling off the support rod 7.
[0026] The lower end of the feed trough 3 is designed as an inverted cone shape.
[0027] The motor 4 is a servo motor.
[0028] Specifically, in this utility model, when the motor 4 is working, the motor 4 drives the first shaft 5 to rotate. Through the transmission of the first shaft 5, the irregular turntable 11 also rotates. The rotating irregular turntable 11 can push the fixed plate 17, thereby causing the connecting ring 8 and the filter screen 9 to vibrate vertically through the transmission of the fixed plate 17. In turn, the vibrating filter screen 9 can screen the raw materials. The two ends of the spring 10 are fixedly connected to the support ring 6 and the connecting ring 8 respectively. When the connecting ring 8 moves, the elastic force of the spring 10 causes the connecting ring 8 and the filter screen 9 to automatically reset. When the first shaft 5 rotates, the first shaft 5 drives the first belt pulley 13 to rotate. Through the transmission of the belt 15, the second belt pulley 14 also rotates. Under the drive of the second belt pulley 14, the second shaft 12 drives the push plate 16 to rotate. The rotating push plate 16 can push the raw materials inside the feed trough 3, thereby allowing the raw materials to enter the mixing chamber of the extruder body 1.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rubber extruder feeding hopper preventing feeding blockage, comprising an extruder body (1), characterized in that, The extruder body (1) is located above the mixing chamber and is provided with a material guide groove (2), the material guide groove (2) is provided with a feeding groove (3) above, the feeding groove (3) is provided with a motor (4) on one side of the lower end, the rotating shaft of the motor (4) penetrates the feeding groove (3) and is fixedly connected with a first shaft (5), a supporting ring (6) is arranged above the first shaft (5) in the feeding groove (3), four supporting rods (7) are arranged in matrix on the supporting ring (6), a connecting ring (8) is sleeved on the four supporting rods (7), a filter screen (9) is arranged in the middle of the connecting ring (8), a special-shaped turntable (11) is arranged in the middle of the first shaft (5), a second shaft (12) is inserted into the upper end of the material guide groove (2), a first belt pulley (13) is arranged on the end of the first shaft (5) away from the motor (4), a second belt pulley (14) is arranged on the second shaft (12), the first belt pulley (13) and the second belt pulley (14) are drivingly connected through a belt (15), and a plurality of push plates (16) are arranged in matrix on one end of the second shaft (12) in the material guide groove (2).
2. A rubber extruder feeding hopper preventing feeding blockage according to claim 1, characterized in that, The supporting rod (7) is sleeved with a spring (10) between the supporting ring (6) and the connecting ring (8).
3. A rubber extruder feeding hopper preventing feeding blockage according to claim 1, characterized in that, The connecting ring (8) is provided with a fixed plate (17) above the special-shaped turntable (11).
4. A rubber extruder feeding hopper preventing feeding blockage according to claim 1, wherein The supporting rod (7) is fixedly connected with a limiting block (18) above.
5. A rubber extruder feeding hopper preventing feeding blockage according to claim 1, wherein The lower end of the feeding groove (3) is inverted conical.
6. A rubber extruder feeding hopper preventing feeding blockage according to claim 1, wherein The motor (4) is a servo motor.