Traditional Chinese medicine decoction piece slicing, conveying and sorting equipment
By designing a traditional Chinese medicine (TCM) decoction piece slice conveying and sorting device, and utilizing the reciprocating motion of the moving frame and push plate as well as the adjustable grid structure, the problem of insufficient screening caused by stacking during the conveying process of TCM decoction pieces is solved, and efficient sorting of different TCM decoction pieces is achieved.
Patent Information
- Application Number
- CN202520435016.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The existing Chinese herbal medicine slices are prone to stacking during the conveying process, resulting in insufficient screening. In addition, the existing sorting equipment has fixed standards and cannot be applied to different Chinese herbal medicine slices or different sorting standards, thus having a narrow scope of application.
A traditional Chinese medicine slice conveying and sorting device was designed. The device uses a moving frame and mounting base to drive a pusher plate to move back and forth on the conveyor belt, spreading the slices flat. The adjustable mesh structure separates the slices that meet the standards from those that do not.
It achieves thorough screening of Chinese medicinal herbs, is applicable to different types and sorting standards, improves sorting efficiency, and avoids the problem of insufficient sorting caused by the accumulation of herbs.
Smart Images
Figure CN223959992U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traditional Chinese medicine decoction piece slicing technology, specifically a traditional Chinese medicine decoction piece slicing conveying and sorting device. Background Technology
[0002] Traditional Chinese medicine (TCM) decoction pieces are TCM raw materials that have undergone processing according to TCM theory and methods, and can be directly used in TCM clinical practice. This concept indicates that there is no absolute boundary between TCM raw materials and TCM decoction pieces. TCM decoction pieces include some sliced TCM raw materials processed at the place of origin, whole TCM raw material decoction pieces, and decoction pieces that have been cut and processed. The first two categories should be regarded as TCM raw materials in management, but are understood as decoction pieces in prescriptions and preparations according to TCM theory. After being cut into slices, TCM decoction pieces contain impurities and small-diameter pieces that do not meet the slicing standards. To ensure the quality of decoction pieces, screening is necessary.
[0003] In existing technologies, medicinal slices are screened during the conveying process. The stacking of medicinal slices during the conveying process causes some medicinal slices to be unable to be screened, resulting in insufficient overall screening of Chinese medicinal slices. Furthermore, the sorting standards of the sorting equipment currently used are uniform and fixed, which cannot be applied to different Chinese medicinal slices or different sorting standards, thus having a narrow scope of application. Utility Model Content
[0004] The purpose of this invention is to provide a traditional Chinese medicine slice conveying and sorting device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a traditional Chinese medicine slice conveying and sorting device, comprising a mounting frame, on which two sets of symmetrically distributed mounting rods are rotatably mounted, and two sets of symmetrically distributed transmission wheels are fixedly sleeved on each of the two sets of mounting rods. Two sets of symmetrically distributed transmission belts are sleeved on the two sets of mounting rods, and conveyor belts are fixedly sleeved on the two sets of transmission belts. The two sets of transmission belts are respectively connected to the corresponding two sets of transmission wheels. A movable frame is slidably mounted on the mounting frame, and a mounting base is slidably mounted inside the movable frame. A flying disc is rotatably mounted inside the movable frame, and a connection is provided between the flying disc and the movable frame. The device includes a connecting rod, the two ends of which are rotatably connected to the mounting base and the flyboard respectively via a rotating shaft. The mounting base has multiple sets of equidistantly distributed push plates, each set corresponding to the conveyor belt. A mounting frame is slidably mounted on the mounting frame, and two sets of vertically distributed fixing rods are fixedly mounted within the mounting frame. Two sets of symmetrically distributed first push rods are slidably mounted on each of the two sets of fixing rods, and second push rods are slidably mounted within each of the two sets of first push rods. Multiple sets of equidistantly distributed adjusting rods are correspondingly provided on each of the two sets of fixing rods. A bidirectional screw is rotatably mounted within each of the fixing rods, and a threaded tube is rotatably mounted within each of the two sets of first push rods.
[0006] As a further preferred embodiment of this technical solution, a first slide rod is fixedly installed inside the movable frame, and two sets of symmetrically distributed first springs are sleeved on the first slide rod. The mounting base is slidably sleeved with the first slide rod, and the two ends of the two sets of first springs are fixedly connected to the mounting base and the movable frame, respectively.
[0007] As a further preferred embodiment of this technical solution, all of the push plates are rotatably connected to the mounting base via a mounting shaft, and each mounting shaft is fitted with a torsion spring, the two ends of which are fixedly connected to the push plate and the mounting base, respectively.
[0008] As a further preferred embodiment of this technical solution, the ends of the two sets of second push rods away from the fixed rod are respectively fixedly connected to the two sets of adjusting rods located at both ends. Between the two adjacent sets of adjusting rods, there are two sets of cross-distributed first connecting rods, second connecting rods, third connecting rods, and fourth connecting rods. The left ends of the first connecting rods and second connecting rods are rotatably connected by a pivot. The right ends of the first connecting rods and second connecting rods are rotatably mounted with sliders. The sliders are slidably connected to the corresponding adjusting rods. The right ends of the third connecting rods and fourth connecting rods are rotatably connected by a pivot. The left ends of the third connecting rods and fourth connecting rods are rotatably connected to the corresponding adjusting rods by a pivot. The first connecting rods and third connecting rods are rotatably connected by a pivot. The second connecting rods and fourth connecting rods are rotatably connected by a pivot.
[0009] As a further preferred embodiment of this technical solution, a first bevel gear is sleeved on the bidirectional screw, and a second bevel gear is rotatably installed inside the fixed rod. The second bevel gear meshes with the first bevel gear. The bidirectional screw passes through two sets of first push rods and is threadedly connected to the two sets of first push rods respectively. The threaded tube passes through the corresponding second push rod and is threadedly connected to the second push rod.
[0010] As a further preferred embodiment of this technical solution, the bidirectional screw is provided with two sets of symmetrically distributed limiting grooves, and the threaded tube is provided with two sets of symmetrically distributed limiting blocks. The limiting blocks are arranged correspondingly to the limiting grooves, and both sets of the threaded tubes are slidably connected to the bidirectional screw through the limiting blocks.
[0011] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed second slide rods are fixedly installed inside the mounting frame. Two sets of symmetrically distributed second springs are sleeved on each of the two sets of second slide rods. The mounting frame is slidably sleeved with the second slide rods. The two ends of the two sets of second springs are fixedly connected to the mounting frame and the mounting bracket, respectively. A cam is rotatably installed inside the mounting frame. The cam is fitted against the mounting frame. A rubber sheet is fixedly adhered to the mounting frame. A rubber sheet is provided between the mounting frame and the mounting bracket.
[0012] This utility model provides a conveying and sorting device for sliced Chinese medicinal herbs, which has the following beneficial effects:
[0013] (1) This utility model uses the set mobile frame and mounting base to drive multiple sets of push plates to move back and forth in the mobile frame to achieve the auxiliary flat laying of Chinese medicine slices piled on the conveyor belt, so as to avoid the accumulation of Chinese medicine slices causing some slices to be covered, and still being covered after being conveyed to the mounting frame, thus affecting its sorting efficiency.
[0014] (2) This utility model achieves equidistant adjustment of the spacing between multiple sets of adjusting rods by using a fixed rod, a first push rod and a second push rod in conjunction with a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, thereby changing the size of the grid formed by the two vertically distributed sets of adjusting rods. It is suitable for different Chinese herbal medicine pieces and different sorting standards, and will screen out the dregs, impurities or pieces that do not meet the sorting standards from the Chinese herbal medicine pieces falling from the conveyor belt. The installation frame will retain pieces that meet the screening standards for collection by the staff. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the conveyor belt structure of this utility model;
[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;
[0018] Figure 4 This is a schematic diagram showing the structural separation of the mounting frame and mounting bracket of this utility model;
[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;
[0020] Figure 6 This is a cross-sectional view of the fixing rod of this utility model;
[0021] In the diagram: 1. Mounting frame; 2. Mounting rod; 3. Drive wheel; 4. Drive belt; 5. Conveyor belt; 6. Moving frame; 7. Mounting base; 8. First slide rod; 9. First spring; 10. Connecting rod; 11. Flying disc; 12. Push plate; 13. Mounting shaft; 14. Torsion spring; 15. Mounting frame; 16. Second slide rod; 17. Second spring; 18. Cam; 19. Rubber sheet; 20. Adjusting rod; 21. First connecting rod; 22. Second connecting rod; 23. Third connecting rod; 24. Fourth connecting rod; 25. Fixed rod; 26. First push rod; 27. Second push rod; 28. Bidirectional screw; 29. Limiting groove; 30. Threaded tube; 31. Limiting block; 32. First bevel gear; 33. Second bevel gear; 34. Slider. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] The present invention provides a technical solution as shown in the figure. Figure 2 , Figure 3 As shown, in this embodiment, a traditional Chinese medicine slice conveying and sorting device includes a mounting frame 1. Two sets of symmetrically distributed mounting rods 2 are rotatably mounted on the mounting frame 1. Two sets of symmetrically distributed transmission wheels 3 are fixedly sleeved on each of the two sets of mounting rods 2. Two sets of symmetrically distributed transmission belts 4 are sleeved on the two sets of mounting rods 2. Conveyor belts 5 are fixedly sleeved on the two sets of transmission belts 4. The two sets of transmission belts 4 are respectively connected to the corresponding two sets of transmission wheels 3. A movable frame 6 is slidably mounted on the mounting frame 1. A mounting base 7 is slidably mounted inside the movable frame 6. A flying disc 11 is rotatably mounted inside the movable frame 6. A connecting rod 10 is provided between the flying disc 11 and the movable frame 6. Both ends are rotatably connected to the mounting base 7 and the flying disc 11 via rotating shafts. The mounting base 7 has multiple sets of equidistantly distributed push plates 12, each corresponding to the conveyor belt 5. A mounting frame 15 is slidably mounted on the mounting frame 1. Two sets of vertically distributed fixing rods 25 are fixedly mounted within the mounting frame 15. Two sets of symmetrically distributed first push rods 26 are slidably mounted on each of the two sets of fixing rods 25. Second push rods 27 are slidably mounted within each of the two sets of first push rods 26. Multiple sets of equidistantly distributed adjusting rods 20 are correspondingly arranged on each of the two sets of fixing rods 25. A bidirectional screw 28 is rotatably mounted within each of the fixing rods 25. A screw is rotatably mounted within each of the two sets of first push rods 26. Unsorted Chinese medicinal herbs (TCM) slices are piled on conveyor belt 5. A motor in mounting frame 1 drives mounting rod 2 to rotate, and under the action of transmission belt 4 and transmission wheel 3, the TCM slices are conveyed by conveyor belt 5. During the conveying process, the TCM slices pass under moving frame 6. Based on the thickness of the TCM slices to be sorted, the cylinder on mounting frame 1 is activated to drive moving frame 6 to slide. After adjusting the distance between push plate 12 and conveyor belt 5, the motor in moving frame 6 is activated to drive fly disc 11 to rotate. This, in conjunction with connecting rod 10, causes mounting base 7 to drive multiple equidistantly distributed push plates 12 to reciprocate left and right on conveyor belt 5. The push plates 12 move left and right on the surface of conveyor belt 5. During the process, the piled-up medicinal slices are flattened and laid flat on the conveyor belt 5. Therefore, as the conveyor belt 5 continues to convey, the flattened medicinal slices are evenly scattered on the mounting frame 15 to achieve sorting. A first slide rod 8 is fixedly installed inside the movable frame 6. Two sets of symmetrically distributed first springs 9 are sleeved on the first slide rod 8. The mounting seat 7 is slidably sleeved with the first slide rod 8. The two ends of the two sets of first springs 9 are fixedly connected to the mounting seat 7 and the movable frame 6, respectively. Multiple sets of push plates 12 are rotatably connected to the mounting seat 7 through the mounting shaft 13. A torsion spring 14 is sleeved on the mounting shaft 13. The two ends of the torsion spring 14 are fixedly connected to the push plate 12 and the mounting seat 7, respectively.
[0024] like Figure 4, Figure 5 and Figure 6As shown, the ends of the two sets of second push rods 27 away from the fixed rod 25 are respectively fixedly connected to the two sets of adjusting rods 20 located at both ends. Between adjacent sets of adjusting rods 20, there are two sets of cross-distributed first connecting rods 21, second connecting rods 22, third connecting rods 23, and fourth connecting rods 24. The left ends of the first connecting rods 21 and second connecting rods 22 are rotatably connected via a pivot. The right ends of both the first connecting rods 21 and second connecting rods 22 are rotatably mounted with sliders 34, which are slidably connected to their corresponding adjusting rods 20. The right ends of the third connecting rods 23 and fourth connecting rods 24 are rotatably connected via a pivot. The left ends of the third connecting rods 23 and fourth connecting rods 24 are rotatably connected to their corresponding adjusting rods 20 via pivots. The first connecting rods 21 and third connecting rods 23 are rotatably connected via a pivot, and the second connecting rods 22... The first bevel gear 32 is sleeved on the bidirectional screw 28 and rotated through the fourth connecting rod 24 via a rotating shaft. A second bevel gear 33 is rotatably installed inside the fixed rod 25, meshing with the first bevel gear 32. The bidirectional screw 28 passes through two sets of first push rods 26 and is threadedly connected to each set. A threaded tube 30 passes through the corresponding second push rod 27 and is threadedly connected to it. Two sets of symmetrically distributed limiting grooves 29 are provided on the bidirectional screw 28. Two sets of symmetrically distributed limiting blocks 31 are provided inside the threaded tube 30, corresponding to the limiting grooves 29. Both sets of threaded tubes 30 are slidably sleeved with the bidirectional screw 28 through the limiting blocks 31. This sorting device can activate both sets of limiting blocks 31 according to the actual size of the medicinal slices to be sorted. The motor in the fixed rod 25 drives the second bevel gear 33 to rotate, which in turn causes the bidirectional screw 28 to rotate. Under the action of the limiting block 31 and the limiting groove 29, the two sets of threaded tubes 30 rotate synchronously. Then, under the limiting action of the fixed rod 25 and the first push rod 26, the two sets of first push rods 26 and second push rods 27 are pushed synchronously inward or outward. The two sets of adjusting rods 20 located on both sides and fixedly connected to the two sets of second push rods 27 slide synchronously inward or outward. With the help of the first connecting rod 21, the second connecting rod 22, the third connecting rod 23 and the fourth connecting rod 24 distributed between adjacent sets of adjusting rods 20, the spacing between the multiple sets of adjusting rods 20 can be adjusted, thereby forming a net between the vertically distributed multiple sets of adjusting rods 20. The adjustable grid size makes this sorting equipment suitable for different types of Chinese herbal medicine slices and different sorting standards. Two sets of symmetrically distributed second slide rods 16 are fixedly installed inside the mounting frame 1. Two sets of symmetrically distributed second springs 17 are sleeved on each set of second slide rods 16. The mounting frame 15 is slidably sleeved with the second slide rods 16. The two ends of the two sets of second springs 17 are fixedly connected to the mounting frame 15 and the mounting frame 1, respectively. A cam 18 is rotatably installed inside the mounting frame 1, and the cam 18 is fitted against the mounting frame 15. A rubber sheet 19 is fixedly adhered to the mounting frame 15, and a rubber sheet 19 is positioned between the mounting frame 15 and the mounting frame 1. After the rubber sheet 19 falls onto the grid formed by the vertically distributed adjusting rods 20 on the mounting frame 15, the motor inside the mounting frame 1 is activated, driving the cam 18 to rotate.The second slide bar 16 and the second spring 17 work together to achieve the left-right reciprocating sliding of the mounting frame 15, completing the sorting of Chinese herbal medicine slices. Impurities or slices that do not meet the sorting standards leak out through the mesh, while slices that meet the sorting standards remain above the mounting frame 15 awaiting collection.
[0025] This utility model provides a traditional Chinese medicine (TCM) slice conveying and sorting device. The specific working principle is as follows: Unsorted TCM slices accumulate on the conveyor belt 5. A motor in the mounting frame 1 drives the mounting rod 2 to rotate. Under the action of the transmission belt 4 and transmission wheel 3, the conveyor belt 5 conveys the TCM slices. During the conveying process, the slices pass under the moving frame 6. Based on the thickness of the TCM slices to be sorted, the cylinder on the mounting frame 1 is activated to drive the moving frame 6 to slide. After adjusting the distance between the push plate 12 and the conveyor belt 5 to a suitable level, the motor in the moving frame 6 is activated to drive the fly disc 11 to rotate, coordinating with the connecting... The connecting rod 10 causes the mounting base 7 to drive multiple sets of equidistantly distributed push plates 12 to reciprocate left and right on the conveyor belt 5. As the push plates 12 move left and right on the surface of the conveyor belt 5, they flatten the piled-up medicinal slices, spreading them evenly on the conveyor belt 5. Therefore, as the conveyor belt 5 continues to transport the medicinal slices, the flattened slices are evenly scattered onto the mounting frame 15 for sorting. This sorting equipment can, according to the actual size of the medicinal slices to be sorted, activate the motors in the two sets of fixed rods 25 to drive the second bevel gear 33 to rotate, which, in conjunction with the first bevel gear 32, causes the bidirectional screw 28 to rotate, at the limit block 31. Under the action of the limiting groove 29, the two sets of threaded tubes 30 rotate synchronously. Then, under the limiting action of the fixed rod 25 and the first push rod 26, the two sets of first push rods 26 and second push rods 27 are pushed synchronously inward or outward. The two sets of adjusting rods 20, fixedly connected to the two sets of second push rods 27 and located on both sides, slide synchronously inward or outward. In conjunction with the first connecting rod 21, second connecting rod 22, third connecting rod 23, and fourth connecting rod 24 intersecting between adjacent sets of adjusting rods 20, the spacing between the multiple sets of adjusting rods 20 is adjusted, thereby achieving the desired adjustment. The size of the grid formed by the vertically distributed multiple sets of adjusting rods 20 can be adjusted, making the sorting equipment suitable for different types of Chinese herbal medicine slices and different sorting standards. After falling onto the grid formed by the vertically distributed adjusting rods 20 on the mounting frame 15, the motor in the mounting frame 1 is started to drive the cam 18 to rotate. In conjunction with the second slide rod 16 and the second spring 17, the mounting frame 15 is moved back and forth to complete the sorting of Chinese herbal medicine slices. Impurities or slices that do not meet the sorting standards leak out through the grid, while slices that meet the sorting standards remain above the mounting frame 15 to wait for collection.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A traditional Chinese medicine decoction piece slicing, conveying and sorting device, comprising a mounting frame (1), characterized in that: The mounting frame (1) is rotatably provided with two groups of symmetrically distributed mounting rods (2), two groups of the mounting rods (2) are fixedly sleeved with two groups of symmetrically distributed transmission wheels (3), two groups of the mounting rods (2) are sleeved with two groups of symmetrically distributed transmission belts (4), two groups of the transmission belts (4) are fixedly sleeved with a conveying belt (5), two groups of the transmission belts (4) are respectively in transmission connection with the corresponding two groups of transmission wheels (3), the mounting frame (1) is slidably provided with a moving frame (6), the moving frame (6) is slidably provided with a mounting seat (7), the moving frame (6) is rotatably provided with a flying disc (11), a connecting rod (10) is arranged between the flying disc (11) and the moving frame (6), both ends of the connecting rod (10) are rotatably connected with the mounting seat (7) and the flying disc (11) through rotating shafts, the mounting seat (7) is provided with a plurality of groups of equidistantly distributed push plates (12), a plurality of groups of the push plates (12) are correspondingly arranged with the conveying belt (5), the mounting frame (1) is slidably provided with a mounting frame (15), the mounting frame (15) is fixedly provided with two groups of vertically distributed fixing rods (25), two groups of the fixing rods (25) are slidably provided with two groups of symmetrically distributed first push rods (26), two groups of the first push rods (26) are slidably provided with second push rods (27), two groups of the fixing rods (25) are correspondingly provided with a plurality of groups of equidistantly distributed adjusting rods (20), the fixing rod (25) is rotatably provided with a bidirectional screw rod (28), two groups of the first push rods (26) are rotatably provided with threaded pipes (30).
2. The traditional Chinese medicine slice conveying and sorting device according to claim 1, characterized in that: The moving frame (6) is fixedly provided with a first sliding rod (8), the first sliding rod (8) is sleeved with two groups of symmetrically distributed first springs (9), the mounting seat (7) and the first sliding rod (8) are slidably sleeved, both ends of two groups of the first springs (9) are fixedly connected with the mounting seat (7) and the moving frame (6) respectively.
3. The traditional Chinese medicine slice conveying and sorting device according to claim 1, characterized in that: A plurality of groups of the push plates (12) are rotatably connected with the mounting seat (7) through mounting shafts (13), the mounting shafts (13) are sleeved with torsional springs (14), both ends of the torsional springs (14) are fixedly connected with the push plates (12) and the mounting seat (7) respectively.
4. The traditional Chinese medicine slice conveying and sorting device according to claim 1, characterized in that: Two groups of the second push rod (27) are fixedly connected with two groups of the adjusting rods (20) located at two ends respectively away from one end of the fixed rod (25), two groups of the first connecting rods (21), the second connecting rods (22), the third connecting rods (23) and the fourth connecting rods (24) are arranged between two adjacent groups of the adjusting rods (20) in a cross distribution, the left ends of the first connecting rods (21) and the second connecting rods (22) are rotatably connected through a rotating shaft, the right ends of the first connecting rods (21) and the second connecting rods (22) are rotatably installed with sliding blocks (34) respectively, the sliding blocks (34) are slidably connected with the corresponding adjusting rods (20) respectively, the right ends of the third connecting rods (23) and the fourth connecting rods (24) are rotatably connected through a rotating shaft, the left ends of the third connecting rods (23) and the fourth connecting rods (24) are rotatably connected with the corresponding adjusting rods (20) through a rotating shaft respectively, the first connecting rods (21) and the third connecting rods (23) are rotatably connected through a rotating shaft, and the second connecting rods (22) and the fourth connecting rods (24) are rotatably connected through a rotating shaft.
5. The traditional Chinese medicine slice conveying and sorting device according to claim 1, characterized in that: The bidirectional screw rod (28) is sleeved with a first bevel gear (32), the fixed rod (25) is rotatably installed with a second bevel gear (33), the second bevel gear (33) is meshedly connected with the first bevel gear (32), the bidirectional screw rod (28) penetrates two groups of the first push rods (26) and is threadedly connected with the two groups of the first push rods (26) respectively, and the threaded tube (30) penetrates the corresponding second push rod (27) and is threadedly connected with the second push rod (27).
6. The traditional Chinese medicine slice conveying and sorting device according to claim 1, characterized in that: The bidirectional screw rod (28) is provided with two groups of symmetrically distributed limiting grooves (29), the threaded tube (30) is provided with two groups of symmetrically distributed limiting blocks (31), the limiting blocks (31) are correspondingly arranged with the limiting grooves (29), and the two groups of the threaded tubes (30) are slidably sleeved with the bidirectional screw rod (28) through the limiting blocks (31).
7. The traditional Chinese medicine slice conveying and sorting device according to claim 1, characterized in that: Two groups of symmetrically distributed second sliding rods (16) are fixedly installed in the mounting frame (1), two groups of symmetrically distributed second springs (17) are sleeved on the two groups of the second sliding rods (16) respectively, the mounting frame (1) is slidably sleeved with the second sliding rod (16), the two ends of the two groups of the second springs (17) are fixedly connected with the mounting frame (15) and the mounting frame (1) respectively, a cam (18) is rotatably installed in the mounting frame (1), the cam (18) is arranged in abutment with the mounting frame (15), a rubber sheet (19) is fixedly bonded on the mounting frame (15), and the mounting frame (15) is provided with the rubber sheet (19) between the mounting frame (15) and the mounting frame (1).