Low-noise cylindrical seminal plasma device

Abstract

The invention relates to the field of noise reduction of seminal plasma devices, and discloses a low-noise cylindrical seminal plasma device which comprises seminal plasma equipment, a fixing table and a noise reduction mechanism, the fixing table and the noise reduction mechanism are arranged below the seminal plasma equipment, a fixing assembly and a base are arranged below the seminal plasma equipment, and the fixing assembly comprises a connecting base arranged below the seminal plasma equipment; a reinforcing rib is fixedly connected to the lower portion of the connecting seat, a plurality of grooves are formed in the reinforcing rib, and sound absorption cotton is fixedly connected into the grooves in the reinforcing rib, when the equipment is used, vibration and noise generated by the refined pulping equipment are transmitted to the connecting seat, the sound absorption cotton absorbs the noise and reduces the noise, the connecting seat makes contact with the rubber pad for absorption, and the rubber pad absorbs part of vibration; the connecting base extrudes the first spring through the connecting short plate and the fixing column, the spring absorbs part of downward pressure generated by vibration, the first spring is matched with the connecting short plate to absorb noise and vibration generated when the seminal plasma equipment works, and noise output is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of noise reduction of refined pulp devices, in particular to a low-noise cylindrical refined pulp device. Background Art

[0002] The cylindrical pulping machine is mainly used in the papermaking industry. It shears, rubs and kneads the pulp fibers through mechanical action, accurately adjusts the fiber characteristics, makes the paper reach the ideal state in terms of strength, smoothness and water absorption, and meets the production needs of different papers. Compared with the traditional double-disc refiner, the cylindrical refiner is gentler and more precise. When the double-disc refiner is running, the two grinding discs rotate relative to each other at high speed, and the pulp is subjected to a strong but concentrated shear force. Although it can quickly cut the fibers, it is easy to over-cut, resulting in fiber damage, and the force distribution is uneven, making it difficult to achieve uniform processing and fine fiber separation. The cylindrical pulping machine uses its unique cylindrical structure and the coordination between the rotor and the stator to gradually separate the fibers along the longitudinal direction through multi-dimensional kneading and friction, thinning the fiber bundles, increasing the specific surface area, and promoting the separation of fibers. This dispersed and balanced force reduces the cutting of the fibers and retains the length and strength of the fibers. Cylindrical pulping machines are mainly divided into two types: stone knife and stainless steel. Stone knife cylindrical pulping machines are prone to wear and cracking during long-term use. Especially when processing a large amount of pulp, frequent friction and impact will accelerate the loss of stone knives. Stainless steel cylindrical pulping machines have excellent wear resistance and impact resistance, can withstand high-intensity pulp processing, have a long service life, reduce downtime and costs, and the stainless steel surface is smooth and not easy to absorb impurities, ensuring product quality and safety; In the patent application with application publication number CN210031310U, it includes a bottom plate, a water tank, a pulp cooling box, a refrigerator, a circulation pump, a one-way valve, a three-way joint, a first shell, a second shell, a support leg, a shell bracket, a pulp pump, a U-shaped condenser, a first grinding plate, a second grinding plate, a cavity, a feed joint, a discharge joint, a motor, a bearing, a material hole, a cooling box feed joint, a cooling box discharge joint, a valve, a water outlet joint, a water inlet joint, a semiconductor refrigeration sheet and a heat sink. The utility model is novel in conception, and the device contains a cooling mechanism, which can cool down the pulp after pulping. The pulp after pulping does not need to be cooled again by natural cooling or cooling by cooling equipment. The device is easy to use, which greatly facilitates the use of pulp after pulping, and is beneficial to improving the efficiency of papermaking; the coolant in the water tank of the cooling mechanism can circulate in the U-shaped condenser under the action of the water pump, which is beneficial to ensure the cooling effect on the pulp; In the above patent, noise is generated during the use of the above equipment, which may cause the operator's hearing to deteriorate. The high noise environment may reduce the operator's concentration and increase the risk of work errors. Summary of the invention

[0003] The object of the present invention is to provide a low-noise cylindrical refining device to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a low-noise cylindrical refining device, comprising a refining device and a fixed platform and a noise reduction mechanism arranged below the refining device, a fixed assembly and a base for shock absorption and noise reduction are arranged below the refining device, the fixed assembly comprises a connecting seat arranged below the refining device, two connecting short plates are fixedly connected at both ends of the connecting seat, a fixing column is fixedly connected at the lower end of the connecting short plate, a mounting groove is provided on the fixing column, a first spring is fixedly connected inside the mounting groove, a reinforcing rib is fixedly connected below the connecting seat, a plurality of grooves are provided on the reinforcing rib, and sound-absorbing cotton is fixedly connected in the groove on the reinforcing rib; The base includes a fixed base plate arranged below the connecting seat, a rubber pad is fixedly connected to the upper end of the fixed base plate, connecting blocks are fixedly connected to both ends of the fixed base plate, the connecting blocks correspond to the positions of the connecting short plates, a sliding cavity is opened on the connecting block, the sliding cavity is slidably connected to the fixed column, and the other end of the first spring is fixedly connected to the lower part of the sliding cavity.

[0005] Preferably, a U-shaped plate is fixedly connected to one side of the fixed platform, a fixed block is fixedly connected to the lower end of the U-shaped plate, a vertical rod is fixedly connected to the upper end of the fixed block, and a baffle is fixedly connected to the upper end of the vertical rod.

[0006] Preferably, the fixed base plate is fixedly connected to the fixed platform by bolts.

[0007] Preferably, the noise reduction mechanism includes noise reduction components respectively arranged on both sides of the fixed platform, a connecting frame is arranged at one end of the noise reduction mechanism, a connecting slider is fixedly arranged on the side of the connecting frame close to the fixed platform, connecting components are arranged on both sides of the connecting frame, and a locking component for locking the connecting component is arranged inside the connecting frame.

[0008] Preferably, the noise reduction component includes two mounting blocks fixedly connected to the upper side of a fixed platform, a rotating plate is rotatably connected between the two mounting blocks, a plurality of through holes are respectively provided on both sides of the rotating plate, a mineral wool sound-absorbing panel is arranged inside the rotating plate, a handle is fixedly connected to one side of the rotating plate, and a rotating groove is provided at one end of the rotating plate near the center.

[0009] Preferably, the connecting assembly includes an L-shaped plate slidably arranged in a connecting frame, and a plurality of teeth are fixedly arranged on opposite sides of two groups of L-shaped plates. A connecting bent rod is fixedly connected to one side of the L-shaped plate, and a connecting disk is fixedly connected to the other end of the connecting bent rod, and the connecting disk is rotatably connected to the rotating plate through a rotating groove.

[0010] Preferably, the locking assembly includes a gear rotatably connected to the inner center of the connecting frame, the gear is meshed with the teeth, sliding cross bars are respectively provided on both sides of the gear, and a special-shaped lock groove matching the gear is provided on the side of the sliding cross bar facing the gear, a second spring is fixedly connected to one side of the sliding cross bar, and a lock hole is fixedly connected to the other end of the second spring, and both sides of the lock hole are fixedly connected to the interior of the connecting frame, the sliding cross bar is slidably connected to the interior of the connecting frame, one end of the sliding cross bar passes through the connecting frame and is fixedly connected to an L-shaped rod, locking holes are respectively provided on the two L-shaped rods, an inverted J-shaped rod is movably provided in one of the lock holes, and the lower end of the inverted J-shaped rod is fixedly connected to a limiting baffle.

[0011] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) A fixing assembly and a base are provided under the refined pulp equipment. When the equipment is in use, the vibration and noise generated by the refined pulp equipment are transmitted to the connecting seat, the sound-absorbing cotton absorbs the noise, and the connecting seat contacts and absorbs the noise. The rubber pad absorbs part of the vibration. The connecting seat squeezes the first spring through the connecting short plate and the fixing column, so that the first spring is pressed down again by the vibration generated when the refined pulp equipment is working. The spring absorbs part of the downward pressure generated by the vibration. The first spring and the connecting short plate cooperate to absorb the noise and vibration generated when the refined pulp equipment is working, and reduce the output of noise. Because the fixing column slides in the sliding cavity, the connecting seat will not shake, and the noise generated when the equipment is working is reduced; (2) When the equipment is running, push the limit baffle to unlock the two L-shaped rods. The second spring pulls the sliding cross bar away from the gear. Hold a handle and flip the rotating plate upward, so that the rotating plate flips 180 degrees, changing from vertical downward to vertical upward. When the rotating plate flips, the connecting plate drives the connecting bent rod to move. The connecting bent rod drives the L-shaped plate to slide out of the connecting frame. The L-shaped plate rotates the gear through the teeth. The gear drives another L-shaped plate to slide out of the connecting frame through the teeth. The other L-shaped plate drives another set of rotating plates to the connecting bent rod and the connecting plate. The two rotating plates are turned synchronously, and when the two rotating plates are vertically upward, because the two rotating plates become parallel again, the connecting assembly is reset to the connecting frame. At this time, the two L-shaped rods are pulled close together, and the two L-shaped rods are locked by the inverted J-shaped rod. The L-shaped rod drives the sliding cross bar close to the gear, and the sliding cross bar locks the gear through the special-shaped locking groove. The gear locks the L-shaped plate through the teeth. The two rotating plates are locked on both sides of the refined pulp equipment without shaking. The noise generated by the refined pulp equipment is absorbed by the mineral wool sound-absorbing panel in the rotating plate, thereby reducing the noise generated during the operation of the refined pulp equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the refined pulp equipment of the present invention; Figure 3 This is a schematic diagram of the base structure of the present invention; Figure 4 It is a schematic diagram of the structure of the fixing assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the fixing platform and the noise reduction mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the fixing platform of the present invention; Figure 7 This is a schematic diagram of the structure of the noise reduction component of the present invention; Figure 8 This is a schematic diagram of the connection frame structure of the present invention; Fig. 9 This is a schematic diagram of the structure of the connection assembly of the present invention; Fig.10 It is a schematic diagram of the locking assembly structure of the present invention.

[0013] In the figure: 1. fine pulp equipment; 11. fixing assembly; 111. connecting seat; 112. connecting short plate; 113. reinforcing rib; 114. sound-absorbing cotton; 115. fixing column; 116. mounting groove; 117. first spring; 12. base; 121. fixing base plate; 122. rubber pad; 123. connecting block; 124. sliding cavity; 2. fixing platform; 21. U-shaped plate; 22. fixing block; 23. vertical rod; 3. noise reduction mechanism; 31. noise reduction assembly; 311. mounting block; 312 , rotating plate; 313, through hole; 314, mineral wool sound-absorbing board; 315, handle; 316, rotating groove; 32, connecting frame; 33, connecting slider; 34, connecting assembly; 341, L-shaped plate; 342, connecting bent rod; 343, connecting disk; 344, teeth; 35, locking assembly; 351, gear; 352, sliding cross bar; 353, special-shaped locking groove; 354, L-shaped rod; 355, second spring; 356, locking hole; 357, inverted J-shaped rod; 358, limit baffle. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0015] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0016] like Figures 1 to 10 As shown, a low-noise cylindrical refining device provided by the present invention comprises a refining device 1 and a fixed platform 2 and a noise reduction mechanism 3 arranged below the refining device 1. A fixed component 11 and a base 12 for vibration reduction and noise reduction are arranged below the refining device 1. The fixed component 11 comprises a connecting seat 111 arranged below the refining device 1. Two connecting short plates 112 are fixedly connected at both ends of the connecting seat 111. A fixing column 115 is fixedly connected to the lower end of the connecting short plate 112. A mounting groove 116 is provided on the fixing column 115. A first spring 117 is fixedly connected inside the mounting groove 116. A reinforcing rib 113 is fixedly connected below the connecting seat 111. The reinforcing rib 113 is provided with a plurality of grooves. A sound-absorbing cotton 114 is fixedly connected in the groove on the reinforcing rib 113. The base 12 includes a fixed base plate 121 arranged below the connecting seat 111, a rubber pad 122 is fixedly connected to the upper end of the fixed base plate 121, connecting blocks 123 are fixedly connected to both ends of the fixed base plate 121, and the connecting blocks 123 correspond to the positions of the connecting short plates 112. A sliding cavity 124 is opened on the connecting block 123, and the sliding cavity 124 is slidably connected to the fixed column 115. The other end of the first spring 117 is fixedly connected to the lower part of the sliding cavity 124.

[0017] When in use, the vibration and noise generated by the refined pulp equipment 1 are transmitted to the connecting seat 111, the sound-absorbing cotton 114 absorbs the noise to reduce the noise, the connecting seat 111 contacts and absorbs the rubber pad 122, the rubber pad 122 absorbs part of the vibration, and the connecting seat 111 squeezes the first spring 117 through the connecting short plate 112 and the fixing column 115, so that the first spring 117 is pressed down again by the vibration generated when the refined pulp equipment 1 is working, and the spring absorbs part of the downward pressure generated by the vibration, and the first spring 117 and the connecting short plate 112 cooperate to absorb the noise and vibration generated when the refined pulp equipment 1 is working, thereby reducing the output of noise.

[0018] A U-shaped plate 21 is fixedly connected to one side of the fixed platform 2, a fixing block 22 is fixedly connected to the lower end of the U-shaped plate 21, a vertical rod 23 is fixedly connected to the upper end of the fixing block 22, and a baffle is fixedly connected to the upper end of the vertical rod 23.

[0019] The fixed base plate 121 is fixedly connected to the fixed platform 2 by bolts.

[0020] The noise reduction mechanism 3 includes noise reduction components 31 respectively arranged on both sides of the fixed platform 2, a connecting frame 32 is arranged at one end of the noise reduction mechanism 3, a connecting slider 33 is fixedly arranged on the side of the connecting frame 32 close to the fixed platform 2, a sliding hole is opened on the connecting slider 33, the connecting slider 33 is slidably connected to the vertical rod 23 through the sliding hole, connecting components 34 are arranged on both sides of the connecting frame 32, and a locking component 35 for locking the connecting component 34 is arranged inside the connecting frame 32.

[0021] The noise reduction component 31 includes two mounting blocks 311 fixedly connected to the upper side of the fixed platform 2, a rotating plate 312 is rotatably connected between the two mounting blocks 311, a plurality of through holes 313 are respectively provided on both sides of the rotating plate 312, a mineral wool sound-absorbing panel 314 is arranged inside the rotating plate 312, a handle 315 is fixedly connected to one side of the rotating plate 312, and a rotating groove 316 is provided at one end of the rotating plate 312 near the center.

[0022] The connecting component 34 locks the noise reduction component 31 to prevent the noise reduction component 31 from shaking and making noise due to the vibration generated when the fine pulp equipment 1 is working.

[0023] The connecting component 34 includes an L-shaped plate 341 slidably arranged in the connecting frame 32, and a plurality of teeth 344 are fixedly arranged on opposite sides of the two groups of L-shaped plates 341. A connecting bent rod 342 is fixedly connected to one side of the L-shaped plate 341, and a connecting disk 343 is fixedly connected to the other end of the connecting bent rod 342. The connecting disk 343 is rotatably connected to the rotating plate 312 through a rotating groove 316.

[0024] The locking assembly 35 includes a gear 351 rotatably connected to the center of the connection frame 32, the gear 351 is meshed with the teeth 344, and sliding cross bars 352 are respectively provided on both sides of the gear 351. The sliding cross bar 352 is provided with a special-shaped locking groove 353 matching the gear 351 on the side facing the gear 351. A second spring 355 is fixedly connected to one side of the sliding cross bar 352, and a lock hole 356 is fixedly connected to the other end of the second spring 355. Both sides of the lock hole 356 are fixedly connected to the inside of the connection frame 32. The movable cross bar 352 is slidably connected to the inside of the connecting frame 32. One end of the sliding cross bar 352 passes through the connecting frame 32 and is fixedly connected to an L-shaped rod 354. A slideway corresponding to the L-shaped rod 354 is provided on the connecting frame 32. Locking holes 356 are respectively provided on the two L-shaped rods 354. An inverted J-shaped rod 357 is movably arranged in one of the locking holes 356. The lower end of the inverted J-shaped rod 357 is fixedly connected to a limiting baffle 358. The two L-shaped rods 354 are locked by the inverted J-shaped rod 357 through the locking holes 356.

[0025] The working principle of the present invention is as follows: when the equipment is in use, the vibration and noise generated by the refined pulp equipment 1 are transmitted to the connecting seat 111, the sound-absorbing cotton 114 absorbs the noise to reduce the noise, the connecting seat 111 contacts and absorbs the rubber pad 122, the rubber pad 122 absorbs part of the vibration, the connecting seat 111 squeezes the first spring 117 through the connecting short plate 112 and the fixing column 115, so that the first spring 117 is pressed down again by the vibration generated when the refined pulp equipment 1 is working, and the spring absorbs part of the downward pressure generated by the vibration, the first spring 117 and the connecting short plate 112 cooperate to absorb the noise and vibration generated when the refined pulp equipment 1 is working, and reduce the output of noise, because the fixing column 115 slides in the sliding cavity 124, the connecting seat 111 will not shake, and the noise generated when the equipment is working is reduced; When the equipment is running, the limit baffle 358 is pushed to move upward, and the limit baffle 358 drives the inverted J-shaped rod 357 to move upward. One end of the inverted J-shaped rod 357 is disengaged from the fixed short plate 356 on an L-shaped rod 354. The two L-shaped rods 354 are no longer locked together by the inverted J-shaped rod 357. At this time, the second spring 355 pulls the sliding cross bar 352 away from the gear 351. At this time, hold a handle 315 and flip the rotating plate 312 upward, so that the rotating plate 312 flips 180 degrees, from vertical downward to vertical upward. When the rotating plate 312 flips, the connecting plate 354 is connected to the rotating plate 312. The connecting bent rod 343 drives the connecting bent rod 342 to move, and the connecting bent rod 342 drives the L-shaped plate 341 to slide out of the connecting frame 32. The L-shaped plate 341 engages with the rotating gear 351 through the teeth 344, so that the gear 351 rotates. The gear 351 drives another L-shaped plate 341 to slide out of the connecting frame 32 through the teeth 344. The other L-shaped plate 341 drives another set of rotating plates 312 to flip upward synchronously through the connecting bent rod 342 and the connecting disk 343. When one rotating plate 312 is flipped, the other rotating plate 312 is flipped synchronously. When flipping, the rotating plates 312 are connected to the connecting group The connecting member 34 drives the connecting frame 32 to rise, and the connecting frame 32 drives the connecting slider 33 to slide in the U-shaped plate 21. When the two rotating plates 312 are both vertically upward, because the two rotating plates 312 become parallel again at this time, the connecting assembly 34 is reset to the connecting frame 32, and the two L-shaped rods 354 are pulled close to each other, pushing the limit baffle 358 upward, and the limit baffle 358 drives the inverted J-shaped rod 357 upward, aligning one end of the inverted J-shaped rod 357 with the fixed short plate 356 inserted into the other L-shaped rod 354, locking the two L-shaped rods 354 together, and pulling the two L-shaped rods 354 close together. When approaching, the L-shaped rod 354 drives the sliding cross bar 352 to approach the gear 351, and the sliding cross bar 352 locks the gear 351 through the special-shaped locking groove 353, so that the gear 351 can no longer rotate. At this time, the gear 351 locks the L-shaped plate 341 through the teeth 344, so that the L-shaped plate 341 cannot slide out of the connecting frame 32, and the two rotating plates 312 are locked on both sides of the refined pulping equipment 1. The noise generated by the refined pulping equipment 1 is absorbed by the mineral wool sound absorbing plate 314 in the rotating plate 312, thereby reducing the noise generated during the operation of the refined pulping equipment 1 and preventing the noise from adversely affecting the hearing and attention of the staff.

[0026] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A low-noise cylindrical refining device, comprising a refining device (1) and a fixing platform (2) and a noise reduction mechanism (3) arranged below the refining device (1), characterized in that: A fixing component (11) and a base (12) for vibration reduction and noise reduction are arranged below the refined pulp equipment (1), the fixing component (111) comprising a connecting seat (111) arranged below the refined pulp equipment (1), two connecting short plates (112) being fixedly connected to the two ends of the connecting seat (111) respectively, a fixing column (115) being fixedly connected to the lower end of the connecting short plate (112), a mounting groove (116) being provided on the fixing column (115), a first spring (117) being fixedly connected inside the mounting groove (116), a reinforcing rib (113) being fixedly connected below the connecting seat (111), the reinforcing rib (113) being provided with a plurality of grooves, and a sound-absorbing cotton (114) being fixedly connected inside the groove on the reinforcing rib (113); The base (12) comprises a fixed base plate (121) arranged below the connecting seat (111); a rubber pad (122) is fixedly connected to the upper end of the fixed base plate (121); connecting blocks (123) are fixedly connected to both ends of the fixed base plate (121); the connecting blocks (123) correspond to the positions of the connecting short plates (112); a sliding cavity (124) is formed on the connecting block (123); the sliding cavity (124) is slidably connected to the fixing column (115); and the other end of the first spring (117) is fixedly connected to the lower part of the sliding cavity (124).

2. A low-noise cylindrical refining device according to claim 1, characterized in that: A U-shaped plate (21) is fixedly connected to one side of the fixed platform (2); a fixed block (22) is fixedly connected to the lower end of the U-shaped plate (21); a vertical rod (23) is fixedly connected to the upper end of the fixed block (22); and a baffle is fixedly connected to the upper end of the vertical rod (23).

3. A low-noise cylindrical refining device according to claim 2, characterized in that: The fixed base plate (121) is fixedly connected to the fixed platform (2) by means of bolts.

4. A low-noise cylindrical refining device according to claim 1, characterized in that: The noise reduction mechanism (3) comprises noise reduction components (31) respectively arranged on both sides of the fixing platform (2); a connection frame (32) is arranged at one end of the noise reduction mechanism (3); a connection slider (33) is fixedly arranged on a side of the connection frame (32) close to the fixing platform (2); connection components (34) are arranged on both sides of the connection frame (32); and a locking component (35) for locking the connection component (34) is arranged inside the connection frame (32).

5. A low-noise cylindrical refining device according to claim 3, characterized in that: The noise reduction component (31) comprises two mounting blocks (311) fixedly connected to one side of the fixing platform (2); a rotating plate (312) is rotatably connected between the two mounting blocks (311); a plurality of through holes (313) are respectively provided on both sides of the rotating plate (312); a mineral wool sound absorbing plate (314) is provided inside the rotating plate (312); a handle (315) is fixedly connected to one side of the rotating plate (312); and a rotating groove (316) is provided at one end of the rotating plate (312) near the center.

6. A low-noise cylindrical refining device according to claim 4, characterized in that: The connection assembly (34) comprises an L-shaped plate (341) slidably arranged in a connection frame (32); a plurality of teeth (344) are fixedly arranged on opposite sides of two groups of L-shaped plates (341); a connection bent rod (342) is fixedly connected to one side of the L-shaped plate (341); a connection disk (343) is fixedly connected to the other end of the connection bent rod (342); and the connection disk (343) is rotatably connected to the rotating plate (312) via a rotating groove (316).

7. A low-noise cylindrical refining device according to claim 6, characterized in that: The locking assembly (35) comprises a gear (351) rotatably connected to the inner center of the connection frame (32); the gear (351) is meshedly connected to the teeth (344); sliding cross bars (352) are respectively provided on both sides of the gear (351); a special-shaped locking groove (353) matching the gear (351) is provided on the side of the sliding cross bar (352) facing the gear (351); a second spring (355) is fixedly connected to one side of the sliding cross bar (352); and the other end of the second spring (355) is fixedly connected to A locking hole (356), both sides of the locking hole (356) are fixedly connected to the inside of the connecting frame (32), the sliding cross bar (352) is slidably connected to the inside of the connecting frame (32), one end of the sliding cross bar (352) passes through the connecting frame (32) and is fixedly connected to an L-shaped rod (354), the two L-shaped rods (354) are respectively provided with locking holes (356), an inverted J-shaped rod (357) is movably arranged in one of the locking holes (356), and the lower end of the inverted J-shaped rod (357) is fixedly connected to a limit stop plate (358).

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