A rubber mixing chamber cleaning device
By using a moving and crushing mechanism in the mixing chamber of a rubber mixer to break dry ice and mix it with compressed air, then spraying it into the mixing chamber for cooling and impact, the problem of difficult residue removal in existing devices is solved, achieving a more efficient cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUCHENG HUAWEI RUBBER CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-07
AI Technical Summary
Existing cleaning devices for the mixing chamber of rubber internal mixers are ineffective at removing residues adhering to the inner wall, resulting in poor practicality.
A moving mechanism drives a blowing mechanism to extend into the mixing chamber. The dry ice is broken up by a crushing mechanism and mixed with compressed air. The mixture is then injected into the mixing chamber for cooling and impact. The broken dry ice is used to remove residues, which are then blown out by the blowing mechanism.
It improves the cleaning effect of the mixing chamber of the rubber internal mixer and enhances the practicality of the equipment.
Smart Images

Figure CN224465005U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cleaning rubber internal mixers, and in particular to a cleaning device for the mixing chamber of a rubber internal mixer. Background Technology
[0002] The rubber internal mixer is a key piece of equipment in the rubber industry used for plasticizing and mixing. Its core function is to achieve efficient and uniform mixing of rubber and compounding agents through strong shear force and temperature control in a closed environment. After long-term use, the rubber internal mixer needs to be cleaned. This is generally done through tools such as the dust cleaning device for a pressure mixer disclosed in utility model patent CN214725477U and the masterbatch internal mixer disclosed in utility model patent CN209616084U.
[0003] However, during use, it was found that the existing cleaning device has a relatively simple structure, which is only suitable for cleaning dust and particulate matter inside the rubber mixer, but it is not convenient for cleaning residues attached to the mixing chamber of the rubber mixer, resulting in poor practicality. Therefore, there is an urgent need for a rubber mixer mixing chamber cleaning device to improve the above problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a rubber mixer mixing chamber cleaning device that adjusts the moving mechanism to a position so that the blowing mechanism extends into the mixing chamber of the rubber mixer. At the same time, the dry ice is crushed by the crushing mechanism, and then the compressed air and the crushed dry ice are sprayed into the mixing chamber of the rubber mixer by the blowing mechanism to cool the inside of the mixing chamber. At the same time, the crushed dry ice impacts the inner wall of the mixing chamber, causing the residue on it to fall off. Then, the blowing mechanism blows out the residue that has fallen off the mixing chamber, thereby improving the practicality of the equipment.
[0005] This utility model discloses a cleaning device for the mixing chamber of a rubber internal mixer, which includes a moving mechanism; it also includes a blowing mechanism and a crushing mechanism, both of which are mounted on the moving mechanism;
[0006] The moving mechanism adjusts the position of the blowing mechanism, the crushing mechanism crushes the dry ice, and the blowing mechanism blows dry ice and compressed air.
[0007] The moving mechanism is adjusted to position so that the blowing mechanism extends into the mixing chamber of the rubber internal mixer. At the same time, the dry ice is crushed by the crushing mechanism, and then compressed air and the crushed dry ice are sprayed into the mixing chamber of the rubber internal mixer by the blowing mechanism to cool the inside of the mixing chamber. At the same time, the crushed dry ice impacts the inner wall of the mixing chamber, causing the residue on it to fall off. Then, the blowing mechanism blows the fallen residue out of the mixing chamber, thereby improving the practicality of the equipment.
[0008] Preferably, the blowing mechanism includes a lifting platform, a blowing pipe, a first drive motor, a first air supply pipe, an air compressor, a second air supply pipe, and an impact mechanism. The lifting platform and air compressor are both mounted on a moving mechanism. The blowing pipe is rotatably mounted on the lifting platform. The first drive motor is fixedly mounted on the lifting platform, and its output shaft is connected to the front end of the blowing pipe. The blowing pipe communicates with the interior of the crushing mechanism through the first air supply pipe. A set of exhaust ports of the air compressor communicates with the interior of the crushing mechanism. The impact mechanism is fixedly mounted on the lifting platform, and the other exhaust port of the air compressor... A set of jet nozzles is connected to the interior of the impact mechanism through air supply pipe two; compressed air is discharged into the crushing mechanism through an air compressor, so that the compressed air and crushed dry ice are mixed. Then, the compressed air and crushed dry ice are discharged into the blow pipe through air supply pipe one. After that, the compressed air and crushed dry ice are sprayed into the mixing chamber of the rubber internal mixer through the blow pipe. After the interior of the mixing chamber of the rubber internal mixer is cleaned, the impact mechanism, in conjunction with the air compressor, simultaneously sprays a large amount of compressed air into the mixing chamber of the rubber internal mixer to blow out the residue that has fallen inside.
[0009] Preferably, the impact mechanism includes an air storage tank and an air supply pipe three. The air storage tank is installed on the lifting platform. One end of the air supply pipe three is connected to the interior of the air storage tank, and the other end of the air supply pipe three is connected to the interior of the blow pipe. An electric control valve one is installed at the connection between the air supply pipe three and the air storage tank, and an electric control valve two is installed at the connection between the air supply pipe two and the air storage tank. Compressed air is discharged into the air storage tank by an air compressor and continuously pressurized, so that the air storage tank stores the compressed air. After the interior of the rubber internal mixer mixing chamber is cleaned, the air compressor continues to run, and at the same time, the electric control valve one of the air supply pipe three is opened to discharge the compressed air in the air storage tank into the blow pipe, instantly increasing the exhaust volume of the blow pipe and blowing out the residue that fell inside the rubber internal mixer mixing chamber.
[0010] Preferably, the crushing mechanism includes a crushing box, a sealing cover, a second drive motor, a scraper, a first spring, and a support ring. The crushing box is mounted on the moving mechanism, the sealing cover is mounted on the top of the crushing box, the second drive motor is fixedly mounted on the top of the crushing box, and the output shaft of the second drive motor extends into the interior of the crushing box. The scraper is mounted on the output shaft of the second drive motor, and the support ring is mounted on the bottom of the crushing box via the first spring. When dry ice is placed in the crushing box, the elasticity of the first spring causes the support ring to support the dry ice upwards. At the same time, the operation of the second drive motor causes the scraper to break the dry ice into dry ice particles.
[0011] Preferably, a pressure valve is provided at the connection between the gas supply pipe and the blow pipe; when the pressure in the blow pipe exceeds the set value of the pressure valve, the pressure valve closes to prevent the high-pressure airflow in the blow pipe from flowing back into the crushing box.
[0012] Preferably, the blow pipe includes a first fitting, a second fitting, a second spring, and a rubber ring. The first fitting is rotatably mounted on the lifting platform, the second fitting is slidably mounted on the first fitting, the second spring is fitted onto the first fitting, and one end of the second spring is connected to the second fitting, while the other end of the second spring is connected to the first fitting. The rubber ring is installed at the bottom of the second fitting. When the rubber ring impacts the inner wall of the mixing chamber of the rubber mixer, the elasticity of the second spring causes the second fitting to contract, reducing the impact force.
[0013] Preferably, the moving mechanism includes a vehicle body, a slide rail, an electric slider, a guide shaft, an electric cylinder, and wheels. The wheels are installed at the bottom of the vehicle body, the slide rail is installed at the top of the vehicle body, the electric slider is slidably installed on the slide rail, the guide shaft and the electric cylinder are both installed on the top of the electric slider, and the lifting platform is slidably installed on the guide shaft. The top of the electric cylinder is connected to the bottom of the lifting platform. By pushing the vehicle body, the vehicle body is moved to a suitable position. By extending or retracting the electric cylinder, the lifting platform is guided by the guide shaft, and the blowpipe is adjusted to a suitable height. The electric slider slides on the slide rail, which facilitates the adjustment of the cleaning position of the blowpipe during the cleaning process.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the moving mechanism is adjusted to a position so that the blowing mechanism extends into the mixing chamber of the rubber internal mixer. At the same time, the dry ice is crushed by the crushing mechanism, and then the compressed air and the crushed dry ice are sprayed into the mixing chamber of the rubber internal mixer by the blowing mechanism to cool the inside of the mixing chamber. At the same time, the crushed dry ice impacts the inner wall of the mixing chamber, causing the residue on it to fall off. Then, the blowing mechanism blows out the residue that has fallen off the mixing chamber, thereby improving the practicality of the equipment. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;
[0017] Figure 3 This is a front view structural diagram of the present invention;
[0018] Figure 4 This is a front view cross-sectional structural diagram of the crushing mechanism of this utility model;
[0019] Figure 5 This is a front view cross-sectional structural diagram of the jet pipe of this utility model.
[0020] The following components are labeled in the attached diagram: 1. Lifting platform; 2. Blow pipe; 3. Drive motor 1; 4. Air supply pipe 1; 5. Air compressor; 6. Air supply pipe 2; 7. Air storage tank; 8. Air supply pipe 3; 9. Crushing box; 10. Sealing cover; 11. Drive motor 2; 12. Scraper; 13. Spring 1; 14. Support ring; 15. Pressure valve; 16. Fitting 1; 17. Fitting 2; 18. Spring 2; 19. Rubber ring; 20. Car body; 21. Slide rail; 22. Electric slider; 23. Guide shaft; 24. Electric cylinder; 25. Wheel. Detailed Implementation
[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1
[0022] like Figures 1 to 5 As shown, a rubber internal mixer mixing chamber cleaning device includes a moving mechanism; it also includes a blowing mechanism and a crushing mechanism, both of which are mounted on the moving mechanism.
[0023] The moving mechanism adjusts the position of the blowing mechanism, the crushing mechanism crushes the dry ice, and the blowing mechanism blows dry ice and compressed air.
[0024] The blowing mechanism includes a lifting platform 1, a blowing pipe 2, a drive motor 3, an air supply pipe 4, an air compressor 5, an air supply pipe 6, and an impact mechanism. The lifting platform 1 and the air compressor 5 are both mounted on the moving mechanism. The blowing pipe 2 is rotatably mounted on the lifting platform 1. The drive motor 3 is fixedly mounted on the lifting platform 1, and the output shaft of the drive motor 3 is connected to the front end of the blowing pipe 2. The blowing pipe 2 communicates with the interior of the crushing mechanism through the air supply pipe 4. One set of exhaust ports of the air compressor 5 communicates with the interior of the crushing mechanism. The impact mechanism is fixedly mounted on the lifting platform 1, and another set of air outlets of the air compressor 5 communicates with the interior of the impact mechanism through the air supply pipe 6.
[0025] The impact mechanism includes an air tank 7 and an air supply pipe 3 8. The air tank 7 is installed on the lifting platform 1. One end of the air supply pipe 3 8 is connected to the interior of the air tank 7, and the other end of the air supply pipe 3 8 is connected to the interior of the spray pipe 2. An electric control valve 1 is provided at the connection between the air supply pipe 3 8 and the air tank 7, and an electric control valve 2 is provided at the connection between the air supply pipe 2 6 and the air tank 7.
[0026] The crushing mechanism includes a crushing box 9, a sealing cover 10, a second drive motor 11, a scraper 12, a first spring 13, and a support ring 14. The crushing box 9 is mounted on the moving mechanism, the sealing cover 10 is mounted on the top of the crushing box 9, the second drive motor 11 is fixedly mounted on the top of the crushing box 9, and the output shaft of the second drive motor 11 extends into the interior of the crushing box 9. The scraper 12 is mounted on the output shaft of the second drive motor 11, and the support ring 14 is mounted on the bottom of the crushing box 9 by the first spring 13.
[0027] A pressure valve 15 is provided at the connection between the gas supply pipe 4 and the blow pipe 2.
[0028] The blow pipe 2 includes a first pipe fitting 16, a second pipe fitting 17, a second spring 18, and a rubber ring 19. The first pipe fitting 16 is rotatably mounted on the lifting platform 1. The second pipe fitting 17 is slidably mounted on the first pipe fitting 16. The second spring 18 is fitted onto the first pipe fitting 16, with one end of the second spring 18 connected to the second pipe fitting 17 and the other end of the second spring 18 connected to the first pipe fitting 16. The rubber ring 19 is installed at the bottom of the second pipe fitting 17.
[0029] Turn on drive motor 3 to drive the spray pipe 2 to rotate. Adjust the angle of the spray pipe 2 to place the dry ice block into the crushing chamber 9. The elasticity of spring 13 causes the support ring 14 to support the dry ice block upwards. At the same time, drive motor 11 operates, causing scraper 12 to scrape the dry ice block into dry ice particles. Compressed air is discharged into the crushing chamber 9 by air compressor 5 to mix with the crushed dry ice. Simultaneously, compressed air is discharged into air storage tank 7 by air compressor 5 and continuously pressurized, causing air storage tank 7 to process the compressed air. The compressed air and crushed dry ice are stored and then discharged into the blowpipe 2 through the air supply pipe 4. After that, the compressed air and crushed dry ice are sprayed into the mixing chamber of the rubber internal mixer through the blowpipe 2. After the internal mixing chamber of the rubber internal mixer is cleaned, the air compressor 5 continues to run. At the same time, the electric control valve 1 of the air supply pipe 8 is opened to discharge the compressed air in the air storage tank 7 into the blowpipe 2, instantly increasing the exhaust volume of the blowpipe 2 and blowing out the residue that fell into the mixing chamber of the rubber internal mixer, thereby improving the practicality of the equipment. Example 2
[0030] A cleaning device for the mixing chamber of a rubber internal mixer includes a moving mechanism; it also includes a blowing mechanism and a crushing mechanism, both of which are mounted on the moving mechanism;
[0031] The moving mechanism adjusts the position of the blowing mechanism, the crushing mechanism crushes the dry ice, and the blowing mechanism blows dry ice and compressed air.
[0032] The blowing mechanism includes a lifting platform 1, a blowing pipe 2, a drive motor 3, an air supply pipe 4, an air compressor 5, an air supply pipe 6, and an impact mechanism. The lifting platform 1 and the air compressor 5 are both mounted on the moving mechanism. The blowing pipe 2 is rotatably mounted on the lifting platform 1. The drive motor 3 is fixedly mounted on the lifting platform 1, and the output shaft of the drive motor 3 is connected to the front end of the blowing pipe 2. The blowing pipe 2 communicates with the interior of the crushing mechanism through the air supply pipe 4. One set of exhaust ports of the air compressor 5 communicates with the interior of the crushing mechanism. The impact mechanism is fixedly mounted on the lifting platform 1, and another set of air outlets of the air compressor 5 communicates with the interior of the impact mechanism through the air supply pipe 6.
[0033] The impact mechanism includes an air tank 7 and an air supply pipe 3 8. The air tank 7 is installed on the lifting platform 1. One end of the air supply pipe 3 8 is connected to the interior of the air tank 7, and the other end of the air supply pipe 3 8 is connected to the interior of the spray pipe 2. An electric control valve 1 is provided at the connection between the air supply pipe 3 8 and the air tank 7, and an electric control valve 2 is provided at the connection between the air supply pipe 2 6 and the air tank 7.
[0034] The crushing mechanism includes a crushing box 9, a sealing cover 10, a second drive motor 11, a scraper 12, a first spring 13, and a support ring 14. The crushing box 9 is mounted on the moving mechanism, the sealing cover 10 is mounted on the top of the crushing box 9, the second drive motor 11 is fixedly mounted on the top of the crushing box 9, and the output shaft of the second drive motor 11 extends into the interior of the crushing box 9. The scraper 12 is mounted on the output shaft of the second drive motor 11, and the support ring 14 is mounted on the bottom of the crushing box 9 by the first spring 13.
[0035] A pressure valve 15 is provided at the connection between the gas supply pipe 4 and the blow pipe 2.
[0036] The blow pipe 2 includes a first pipe fitting 16, a second pipe fitting 17, a second spring 18, and a rubber ring 19. The first pipe fitting 16 is rotatably mounted on the lifting platform 1. The second pipe fitting 17 is slidably mounted on the first pipe fitting 16. The second spring 18 is fitted onto the first pipe fitting 16, with one end of the second spring 18 connected to the second pipe fitting 17 and the other end of the second spring 18 connected to the first pipe fitting 16. The rubber ring 19 is installed at the bottom of the second pipe fitting 17.
[0037] The moving mechanism includes a vehicle body 20, a slide rail 21, an electric slider 22, a guide shaft 23, an electric cylinder 24, and wheels 25. The wheels 25 are installed at the bottom of the vehicle body 20, the slide rail 21 is installed at the top of the vehicle body 20, the electric slider 22 is slidably installed on the slide rail 21, the guide shaft 23 and the electric cylinder 24 are both installed on the top of the electric slider 22, the lifting platform 1 is slidably installed on the guide shaft 23, and the top of the electric cylinder 24 is connected to the bottom of the lifting platform 1.
[0038] By pushing the vehicle body 20, it is moved to a suitable position. The electric cylinder 24 extends or retracts, guiding the lifting platform 1 via the guide shaft 23. The spray pipe 2 is adjusted to a suitable height, facilitating its insertion into the mixing chamber of the rubber internal mixer. The drive motor 3 is turned on, driving the spray pipe 2 to rotate. The angle of the spray pipe 2 is adjusted, and dry ice blocks are placed in the crushing chamber 9. The elasticity of the spring 13 causes the support ring 14 to support the dry ice blocks upwards. Simultaneously, the drive motor 11 operates, causing the scraper 12 to scrape the dry ice blocks into granules. Compressed air is discharged into the crushing chamber 9 through the air compressor 5, mixing the compressed air with the crushed dry ice. The compressed air is then further processed by the air compressor 5. The compressed air is discharged into the air storage tank 7 and continuously pressurized to store the compressed air in the air storage tank 7. Then, the compressed air and crushed dry ice are discharged into the spray pipe 2 through the air supply pipe 4. After that, the compressed air and crushed dry ice are sprayed into the mixing chamber of the rubber internal mixer through the spray pipe 2. The cleaning position of the spray pipe 2 is adjusted by the electric slider 22 sliding on the slide rail 21. After the internal cleaning of the mixing chamber of the rubber internal mixer is completed, the air compressor 5 continues to run. At the same time, the electric control valve 1 of the air supply pipe 8 is opened to discharge the compressed air in the air storage tank 7 into the spray pipe 2, instantly increasing the exhaust volume of the spray pipe 2 and blowing out the residue that fell into the mixing chamber of the rubber internal mixer, thereby improving the practicality of the equipment.
[0039] The drive motor 3, air compressor 5, drive motor 11, and pressure valve 15 of the rubber internal mixer mixing chamber cleaning device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A cleaning device for the mixing chamber of a rubber internal mixer, comprising a moving mechanism; characterized in that, It also includes a blowing mechanism and a crushing mechanism, both of which are mounted on the moving mechanism; The moving mechanism adjusts the position of the blowing mechanism, the crushing mechanism crushes the dry ice, and the blowing mechanism blows dry ice and compressed air.
2. The rubber internal mixer mixing chamber cleaning device as described in claim 1, characterized in that, The blowing mechanism includes a lifting platform (1), a blowing pipe (2), a drive motor (3), an air supply pipe (4), an air compressor (5), an air supply pipe (6), and an impact mechanism. The lifting platform (1) and the air compressor (5) are both mounted on the moving mechanism. The blowing pipe (2) is rotatably mounted on the lifting platform (1). The drive motor (3) is fixedly mounted on the lifting platform (1), and the output shaft of the drive motor (3) is connected to the front end of the blowing pipe (2). The blowing pipe (2) communicates with the interior of the crushing mechanism through the air supply pipe (4). One set of exhaust ports of the air compressor (5) communicates with the interior of the crushing mechanism. The impact mechanism is fixedly mounted on the lifting platform (1), and another set of air outlets of the air compressor (5) communicates with the interior of the impact mechanism through the air supply pipe (6).
3. The rubber internal mixer mixing chamber cleaning device as described in claim 2, characterized in that, The impact mechanism includes an air tank (7) and an air supply pipe (8). The air tank (7) is installed on the lifting platform (1). One end of the air supply pipe (8) is connected to the interior of the air tank (7), and the other end of the air supply pipe (8) is connected to the interior of the blow pipe (2). An electric control valve is provided at the connection between the air supply pipe (8) and the air tank (7), and an electric control valve is provided at the connection between the air supply pipe (6) and the air tank (7).
4. The rubber internal mixer mixing chamber cleaning device as described in claim 1, characterized in that, The crushing mechanism includes a crushing box (9), a sealing cover (10), a second drive motor (11), a scraper (12), a first spring (13), and a support ring (14). The crushing box (9) is mounted on the moving mechanism. The sealing cover (10) is mounted on the top of the crushing box (9). The second drive motor (11) is fixedly mounted on the top of the crushing box (9), and the output shaft of the second drive motor (11) extends into the interior of the crushing box (9). The scraper (12) is mounted on the output shaft of the second drive motor (11). The support ring (14) is mounted on the bottom of the crushing box (9) through the first spring (13).
5. A rubber internal mixer mixing chamber cleaning device as described in claim 2, characterized in that, A pressure valve (15) is provided at the connection between the gas supply pipe (4) and the blow pipe (2).
6. The rubber internal mixer mixing chamber cleaning device as described in claim 2, characterized in that, The blow pipe (2) includes a first pipe fitting (16), a second pipe fitting (17), a second spring (18), and a rubber ring (19). The first pipe fitting (16) is rotatably mounted on the lifting platform (1), the second pipe fitting (17) is slidably mounted on the first pipe fitting (16), the second spring (18) is fitted on the first pipe fitting (16), and one end of the second spring (18) is connected to the second pipe fitting (17), and the other end of the second spring (18) is connected to the first pipe fitting (16). The rubber ring (19) is installed at the bottom of the second pipe fitting (17).
7. The rubber internal mixer mixing chamber cleaning device as described in claim 2, characterized in that, The moving mechanism includes a vehicle body (20), a slide rail (21), an electric slider (22), a guide shaft (23), an electric cylinder (24), and wheels (25). The wheels (25) are installed at the bottom of the vehicle body (20), the slide rail (21) is installed at the top of the vehicle body (20), the electric slider (22) is slidably installed on the slide rail (21), the guide shaft (23) and the electric cylinder (24) are both installed on the top of the electric slider (22), the lifting platform (1) is slidably installed on the guide shaft (23), and the top of the electric cylinder (24) is connected to the bottom of the lifting platform (1).