A high-efficiency rubber powder grinding mill

Abstract

This utility model belongs to the field of grinding mills, and in particular, a high-efficiency rubber powder grinding mill. It includes a grinding box with multiple support legs installed at the bottom, a feed pipe at the top, and a powder outlet pipe at the bottom. A grinding seat is rotatably mounted inside the grinding box, with a grinding chamber at the top, connected to the powder outlet pipe. The grinding chamber has a trapezoidal cross-section. A servo motor is fixedly mounted on one side of the grinding box, and a transmission mechanism connects the servo motor to the grinding seat. A transmission box is fixedly mounted on the top of the grinding box, and a drive motor is fixedly mounted on the top of the transmission box. A drive shaft is fixedly mounted on the output shaft of the drive motor. This utility model has a reasonable design. Through the pre-crushing by the crushing blade, the counter-rotating grinding of the grinding seat and grinding blocks, the acceleration mechanism to improve crushing efficiency, and the scraper cleaning the inner wall, it achieves the technical effects of more thorough and efficient rubber powder grinding while reducing raw material waste.

Description

Technical Field

[0001] This utility model relates to the field of grinding mills, and in particular to a high-efficiency rubber powder grinding mill. Background Technology

[0002] Rubber powder is a common raw material in the production of rubber products, and it usually needs to be ground into powder using a grinding mill. Existing rubber grinding mills often suffer from low grinding efficiency and insufficient grinding during operation.

[0003] However, some grinding mills only process rubber using a single grinding structure, which can easily lead to uneven grinding of the rubber during the grinding process. This results in rubber powder particles of varying sizes, affecting subsequent processing and use.

[0004] Meanwhile, some grinding mills have fixed rotation speed and unidirectional grinding direction of the grinding components, which cannot perform efficient grinding operations according to the characteristics of rubber, resulting in long grinding time and low work efficiency. In addition, rubber powder is easy to adhere to the inner wall of the grinding box during the grinding process, which not only wastes raw materials, but may also affect the normal operation of the equipment. Therefore, we propose a high-efficiency rubber powder grinding mill to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency rubber powder grinding mill.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency rubber powder grinding mill includes a grinding box with multiple support legs installed at the bottom, a feed pipe at the top, and a powder outlet pipe at the bottom. A grinding seat is rotatably installed inside the grinding box, with a grinding chamber at the top and connected to the powder outlet pipe. The grinding chamber has a trapezoidal cross-section. A servo motor is fixedly installed on one side of the grinding box, and a transmission mechanism is provided between the servo motor and the grinding seat. A transmission box is fixedly installed on the top of the grinding box, and a drive motor is fixedly installed on the top of the transmission box. A drive shaft is fixedly installed on the output shaft of the drive motor, extending into the grinding box and mounting a grinding block, which is adapted to the grinding chamber.

[0008] Preferably, a rotating hole is provided on the top inner wall of the grinding box, a rotating sleeve is rotatably installed in the rotating hole, and a drive shaft passes through the corresponding rotating sleeve. The rotating sleeve extends into the grinding box and is fixedly installed with a pulverizing blade for rubber pulverization.

[0009] Preferably, a crossbar is fixedly installed at one end of the drive shaft, and a scraper that contacts the inner wall of the grinding box is fixedly installed at one end of the crossbar.

[0010] Preferably, a drive shaft is rotatably mounted on the top and bottom inner walls of the transmission box, an acceleration mechanism one is provided between the drive shaft and the drive shaft, and an acceleration mechanism two is provided between the drive shaft and the rotating sleeve.

[0011] Preferably, the acceleration mechanism includes a drive gear and a driven gear. The drive gear is fixedly mounted on the drive shaft, and the driven bevel gear is fixedly mounted on the transmission shaft. The transmission ratio between the drive gear and the driven gear is 2:1.

[0012] Preferably, the second acceleration mechanism includes a linkage gear and a transmission gear. The linkage gear is fixedly mounted on the transmission shaft, and the transmission gear is fixedly mounted on the rotating sleeve. The transmission ratio between the linkage gear and the transmission gear is 1.5:1.

[0013] Preferably, the transmission mechanism includes an annular groove, a rack, and a rotating gear. An annular groove is provided on the outer side of the grinding seat, and a rack is fixedly installed on the bottom inner wall of the annular groove. The output shaft of the servo motor extends into the annular groove and is fixedly installed with a rotating gear, which meshes with the rack.

[0014] Preferably, a controller is installed on one side of the grinding box, and both the drive motor and the servo motor are electrically connected to the controller.

[0015] Preferably, an annular guide groove is provided on the inner wall of the rotating hole, an annular guide seat is fixedly installed on the outer side of the rotating sleeve, and the annular guide seat is rotatably connected to the annular guide groove. A sealing groove is provided on the inner wall of the rotating sleeve, a sealing ring is installed in the sealing groove, and the drive shaft is rotatably and sealingly connected to the sealing ring.

[0016] The beneficial effects of this utility model are:

[0017] By setting up a grinding seat and a grinding block, with the grinding seat rotating in the opposite direction to the grinding block, relative motion can be formed, which greatly improves the grinding efficiency and effect on rubber, allowing the rubber to be ground more thoroughly.

[0018] The shredder is designed to pre-crush the rubber before it enters the grinding chamber, breaking larger rubber blocks into smaller rubber particles, which facilitates subsequent grinding operations and further improves overall work efficiency.

[0019] The combined use of acceleration mechanism one and acceleration mechanism two makes the rotational speed of the rotating sleeve higher than that of the drive shaft, thereby increasing the crushing speed of the crushing blade and enhancing the crushing effect.

[0020] The scraper can clean the inner wall of the grinding box during equipment operation, preventing rubber powder from adhering to the box wall, causing waste and affecting equipment operation, thus ensuring the cleanliness and stability of the equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a high-efficiency rubber powder grinding mill proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of a high-efficiency rubber powder grinding mill proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of part A of a high-efficiency rubber powder grinding mill proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of part B of a high-efficiency rubber powder grinding mill proposed in this utility model.

[0025] In the diagram: 101, grinding box; 102, support leg; 103, feed pipe; 104, powder outlet pipe; 201, grinding base; 202, grinding chamber; 203, transmission box; 204, drive motor; 205, drive shaft; 206, grinding block; 301, rotating hole; 302, rotating sleeve; 303, crushing blade; 401, crossbar; 402, scraper; 501, transmission shaft; 502, drive gear; 503, driven gear; 504, linkage gear; 505, transmission gear; 601, annular groove; 602, rack; 603, servo motor; 604, rotating gear. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0027] This application discloses a high-efficiency rubber powder grinding mill.

[0028] Reference Figure 1-4 A high-efficiency rubber powder grinding mill includes a grinding box 101, with multiple support legs 102 installed at the bottom of the grinding box 101, a feed pipe 103 at the top of the grinding box 101, and a powder outlet pipe 104 at the bottom of the grinding box 101. A grinding seat 201 is rotatably installed inside the grinding box 101, and a grinding chamber 202 is opened at the top of the grinding seat 201. The grinding chamber 202 is connected to the powder outlet pipe, and the cross-section of the grinding chamber 202 is trapezoidal. A servo motor 603 is fixedly installed on one side of the grinding box 101, and a transmission mechanism is provided between the servo motor 603 and the grinding seat 201. A transmission box 203 is fixedly installed at the top of the grinding box 101, and a drive motor 204 is fixedly installed at the top of the transmission box 203. A drive shaft 205 is fixedly installed on the output shaft of the drive motor 204, and the drive shaft 205 extends into the grinding box 101 and is fitted with a grinding block 206, which is adapted to the grinding chamber 202.

[0029] In this embodiment, a rotating hole 301 is provided on the inner top wall of the grinding box 101. A rotating sleeve 302 is rotatably installed in the rotating hole 301, and the drive shaft 205 passes through the corresponding rotating sleeve 302. The rotating sleeve 302 extends into the grinding box 101 and is fixedly installed with a crushing blade 303 for rubber crushing. By setting the rotating sleeve 302 and the drive shaft 205 to rotate independently, it is ensured that the crushing blade 303 pre-crushes the rubber raw material, and it does not interfere with the grinding operation of the grinding block 206 driven by the drive shaft 205. This realizes the coordinated operation of crushing and grinding, and improves the overall processing efficiency.

[0030] In this embodiment, a crossbar 401 is fixedly installed at one end of the drive shaft 205, and a scraper 402 that contacts the inner wall of the grinding box 101 is fixedly installed at one end of the crossbar 401. The scraper 402 rotates synchronously with the drive shaft 205, which can clean the rubber powder adhering to the inner wall of the grinding box 101 in real time, avoid waste caused by material residue, reduce wear on the inner wall of the equipment, and extend the service life of the equipment.

[0031] In this embodiment, a transmission shaft 501 is rotatably mounted on the top and bottom inner walls of the transmission box 203. An acceleration mechanism one is provided between the drive shaft 205 and the transmission shaft 501, and an acceleration mechanism two is provided between the transmission shaft 501 and the rotating sleeve 302. The acceleration mechanism one includes a drive gear 502 and a driven gear 503. The drive gear 502 is fixedly mounted on the drive shaft 205, and the driven gear 503 is fixedly mounted on the transmission shaft 501. The transmission ratio between the drive gear 502 and the driven gear 503 is 2:1. The acceleration mechanism one makes the rotation speed of the transmission shaft 501 higher than that of the drive shaft 205 through the 2:1 transmission ratio, laying the foundation for further acceleration of the rotating sleeve 302, ensuring that the crushing blade 303 crushes the rubber at a higher speed and improving the crushing effect.

[0032] In this embodiment, the second acceleration mechanism includes a linkage gear 504 and a transmission gear 505. The linkage gear 504 is fixedly mounted on the transmission shaft 501, and the transmission gear 505 is fixedly mounted on the rotating sleeve 302. The transmission ratio between the linkage gear 504 and the transmission gear 505 is 1.5:1. The second acceleration mechanism further increases the rotational speed of the rotating sleeve 302 through the 1.5:1 transmission ratio, so that the rotational speed of the crushing blade 303 is significantly higher than that of the drive shaft 205. This allows for the rapid crushing of larger rubber blocks, reduces subsequent grinding pressure, and improves overall processing efficiency.

[0033] In this embodiment, the transmission mechanism includes an annular groove 601, a rack 602, and a rotating gear 604. An annular groove 601 is provided on the outer side of the grinding seat 201. A rack 602 is fixedly installed on the inner wall of the bottom of the annular groove 601. The output shaft of the servo motor 603 extends into the annular groove 601 and a rotating gear 604 is fixedly installed thereon. The rotating gear 604 meshes with the rack 602. Through the meshing transmission of the gear and the rack 602, the servo motor 603 stably drives the grinding seat 201 to rotate. The transmission structure is simple and has high transmission efficiency, which facilitates precise control of the rotation speed and direction of the grinding seat 201.

[0034] In this embodiment, an annular guide groove is provided on the inner wall of the rotating hole 301, and an annular guide seat is fixedly installed on the outer side of the rotating sleeve 302. The annular guide seat is rotatably connected to the annular guide groove. A sealing groove is provided on the inner wall of the rotating sleeve 302, and a sealing ring is installed in the sealing groove. The drive shaft 205 is rotatably and sealingly connected to the sealing ring, which can achieve the purpose of stable rotation of the rotating sleeve 302.

[0035] In this embodiment, a controller is installed on one side of the grinding box 101, and the drive motor 204 and the servo motor 603 are both electrically connected to the controller. The controller can centrally control the operating parameters (such as speed and start / stop) of the drive motor 204 and the servo motor 603 to realize automated operation of the equipment, which makes it easy to adjust the processing parameters according to the characteristics of the rubber raw materials, and improve the applicability and ease of operation of the equipment.

[0036] In this invention, during use, the controller starts the drive motor 204 and the servo motor 603 to feed the rubber raw material into the grinding box 101 from the feed pipe 103; the drive motor 204 drives the drive shaft 205 to rotate, the drive shaft 205 drives the grinding block 206 to rotate, and at the same time, the drive shaft 205 drives the driven gear 503 to rotate through the drive gear 502, so that the transmission shaft 501 rotates faster. The transmission shaft 501 drives the transmission gear 505 to rotate through the linkage gear 504, further increasing the speed of the rotating sleeve 302. The rotating sleeve 302 drives the crushing blade 303 to rotate at high speed, so as to initially crush the input rubber raw material.

[0037] The servo motor 603 drives the rotating gear 604 to rotate. The rotating gear 604 drives the grinding seat 201 to rotate through meshing with the rack 602. The rotation direction of the grinding seat 201 is opposite to that of the grinding block 206. The crushed rubber particles enter the grinding chamber 202 and are fully ground under the relative movement of the grinding block 206 and the grinding seat 201.

[0038] While the drive shaft 205 rotates, the crossbar 401 drives the scraper 402 to rotate. The scraper 402 scrapes off the rubber powder adhering to the inner wall of the grinding box 101, and the ground rubber powder is discharged through the powder outlet pipe.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency rubber powder grinding mill, characterized in that, It includes a grinding box (101), the bottom of which is equipped with multiple support legs (102), the top of which is provided with a feed pipe (103), and the bottom of which is provided with a powder outlet pipe (104). A grinding seat (201) is rotatably installed inside the grinding box (101). A grinding chamber (202) is opened on the top of the grinding seat (201). The grinding chamber (202) is connected to the powder outlet pipe (104). The cross-section of the grinding chamber (202) is set as trapezoidal. A servo motor (603) is fixedly installed on one side of the grinding box (101). A transmission mechanism is provided between the servo motor (603) and the grinding seat (201). A transmission box (203) is fixedly installed on the top of the grinding box (101), and a drive motor (204) is fixedly installed on the top of the transmission box (203). A drive shaft (205) is fixedly installed on the output shaft of the drive motor (204). The drive shaft (205) extends into the grinding box (101) and is equipped with a grinding block (206), and the grinding block (206) is adapted to the grinding chamber (202).

2. A high efficiency rubber pulverizer as claimed in claim 1, wherein, A rotating hole (301) is provided on the top inner wall of the grinding box (101). A rotating sleeve (302) is rotatably installed in the rotating hole (301), and a drive shaft (205) passes through the corresponding rotating sleeve (302). The rotating sleeve (302) extends into the grinding box (101) and is fixedly installed with a pulverizing blade (303) for rubber pulverizing.

3. A high efficiency rubber pulverizer as claimed in claim 1, wherein, A crossbar (401) is fixedly installed at one end of the drive shaft (205), and a scraper (402) that contacts the inner wall of the grinding box (101) is fixedly installed at one end of the crossbar (401).

4. A high efficiency rubber pulverizer as claimed in claim 1, wherein, The transmission box (203) has a transmission shaft (501) rotatably mounted on the top and bottom inner walls. An acceleration mechanism one is provided between the drive shaft (205) and the transmission shaft (501), and an acceleration mechanism two is provided between the transmission shaft (501) and the rotating sleeve (302).

5. A high efficiency rubber pulverizer as claimed in claim 4, wherein, The acceleration mechanism includes a drive gear (502) and a driven gear (503). The drive gear (502) is fixedly mounted on the drive shaft (205), and the driven bevel gear is fixedly mounted on the transmission shaft (501). The transmission ratio between the drive gear (502) and the driven gear (503) is 2:

1.

6. A high efficiency rubber pulverizer as claimed in claim 4 wherein, The second acceleration mechanism includes a linkage gear (504) and a transmission gear (505). The linkage gear (504) is fixedly mounted on the transmission shaft (501), and the transmission gear (505) is fixedly mounted on the rotating sleeve (302). The transmission ratio between the linkage gear (504) and the transmission gear (505) is 1.5:

1.

7. A high efficiency rubber pulverizer as claimed in claim 1 wherein, The transmission mechanism includes an annular groove (601), a rack (602), and a rotating gear (604). An annular groove (601) is provided on the outer side of the grinding seat (201). A rack (602) is fixedly installed on the inner wall of the bottom of the annular groove (601). The output shaft of the servo motor (603) extends into the annular groove (601) and a rotating gear (604) is fixedly installed thereon. The rotating gear (604) meshes with the rack (602).

8. A high efficiency rubber pulverizer as claimed in claim 1 wherein, A controller is installed on one side of the grinding box (101), and the drive motor (204) and the servo motor (603) are both electrically connected to the controller.

9. A high efficiency rubber pulverizer as claimed in claim 2 wherein, An annular guide groove is provided on the inner wall of the rotating hole (301), and an annular guide seat is fixedly installed on the outer side of the rotating sleeve (302), and the annular guide seat is rotatably connected to the annular guide groove.

10. A high efficiency rubber pulverizer as claimed in claim 2, wherein, A sealing groove is provided on the inner wall of the rotating sleeve (302), a sealing ring is installed in the sealing groove, and the drive shaft (205) is rotatably and sealingly connected to the sealing ring.

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