Infrared thickness measuring system

Abstract

The invention provides an infrared thickness measurement system, which relates to the technical field of thickness measurement and comprises a shell, a working cavity is arranged in the shell, a detection shell is mounted at the lower end of the shell, a detection cavity is arranged at the upper end and the lower end of the detection shell in a penetrating manner and communicated with the working cavity, and the detection shell is correspondingly arranged at the upper end of a to-be-measured material. A light source, a light filtering assembly, an outer light path control assembly, an inner light path control assembly and an infrared collector are installed in the detection cavity, the light source is used for emitting infrared rays, and the infrared rays are projected to the infrared collector through the light filtering assembly, the outer light path control assembly and a to-be-detected material to form a measuring light path; when a to-be-detected material is detected, a conveying belt mechanism can be arranged on the lower side of the detection cavity, so that the conveying belt mechanism automatically moves to the lower side of the detection cavity, the to-be-detected material is automatically detected, manual detection is not needed, and the detection efficiency is improved. And the thickness measuring efficiency and the measuring precision are high.

Description

Technical Field

[0001] The invention relates to the technical field of thickness measurement, in particular to an infrared thickness measurement system. Background Art

[0002] In the lithium battery copper foil industry, the thickness of the electrode may vary during production, which seriously affects the pass rate of the subsequent process, ultimately increasing the cost of the product and preventing the improvement of product production efficiency. If manual thickness measurement is used, the thickness measurement efficiency is low, which can easily affect the production efficiency of the electrode. Manual thickness measurement is prone to errors and has low accuracy. Summary of the invention

[0003] The present invention provides an infrared thickness measurement system to solve the above-mentioned technical problems that if manual thickness measurement is adopted, the thickness measurement efficiency is low, which easily affects the production efficiency of the electrode, and the manual thickness measurement is prone to errors and low accuracy.

[0004] In order to solve the above technical problems, the present invention discloses an infrared thickness measurement system, comprising a shell, a working cavity is arranged inside the shell, a detection shell is installed at the lower end of the shell, the detection cavity is penetrated by the upper and lower ends of the detection shell, the detection cavity is communicated with the working cavity, the detection shell is correspondingly arranged at the upper end of the material to be measured, a light source, a filter component, an external light path control component, an internal light path control component and an infrared collector are installed in the detection cavity, the light source is used to emit infrared light, the infrared light is projected onto the infrared collector through the filter component, the external light path control component and the material to be measured to form a measuring light path, and the infrared light is also projected onto the infrared collector through the filter component and the internal light path control component to form a compensation light path.

[0005] Preferably, the light source is fixedly arranged on the left side of the working chamber.

[0006] Preferably, the filter assembly includes a drive motor, the drive motor is fixedly connected to the drive shaft, the drive shaft is fixedly connected to the tempering disk, a number of different types of filters are evenly distributed circumferentially on the tempering disk, the drive motor is fixedly arranged in the middle of the right end of mounting plate one, the light source is arranged on the left side of mounting plate one, mounting plate one is fixedly arranged on the left side of the working chamber, the drive shaft is rotatably connected to the left end of mounting plate two, and mounting plate two is fixedly arranged in the middle of the working chamber.

[0007] Preferably, the internal light path control component includes an internal light path reflector 1 and an internal light path reflector 2, the internal light path reflector 1 is mounted on a mounting block 1, the mounting block 1 is fixedly disposed at the upper end of the working chamber, the internal light path reflector 2 is mounted on a mounting block 2, the mounting block 2 is fixedly connected to the right end of the mounting plate 2, and the internal light path reflector 1 is correspondingly disposed on the upper side of the light source.

[0008] Preferably, inner light path through holes are provided on both left and right ends of the upper sides of mounting plate one and mounting plate two, inner light path reflector one and inner light path reflector two are arranged corresponding to the inner light path through holes, inner light path reflector one is arranged on the left side of mounting plate one, and inner light path reflector two is arranged on the right side of mounting plate two, and inner light path reflector two is arranged corresponding to the infrared collector.

[0009] Preferably, the external light path control component includes an external light path reflector, which is fixedly connected to the lower end of the fixed block, and the fixed block is fixedly arranged between the front and rear ends of the working cavity. The external light path reflector is correspondingly arranged on the upper side of the detection cavity, and a condenser is correspondingly arranged on the upper side of the material to be tested, and the condenser is fixedly arranged on the upper right side of the outer shell.

[0010] Preferably, an infrared collector is fixedly provided on the upper end of the fixed block, and the infrared collector is correspondingly arranged on the lower side of the condenser.

[0011] Preferably, external light path through holes are provided at both left and right ends of the lower sides of mounting plate 1 and mounting plate 2, the left side of the external light path through hole is arranged corresponding to the light source, and the right side of the external light path through hole is arranged corresponding to the external light path reflector.

[0012] Preferably, a heat dissipation mechanism is installed in the middle of the mounting plate one, and the heat dissipation mechanism includes a rotating cover, which is rotatably connected to the annular groove at the right end of the mounting plate one, and the rotating cover and the mounting plate one form a cavity, the driving motor is arranged in the cavity, a gear ring is fixedly provided in the cavity, a plurality of gears are evenly distributed circumferentially on the gear ring, the gears are fixedly connected to the connecting shaft, the right end of the connecting shaft is fixedly connected to the fan one, the left end of the connecting shaft passes through the mounting plate one and is fixedly connected to the fan two, a plurality of ventilation openings are provided at one end of the outer casing close to the fan two, the connecting shaft is evenly distributed circumferentially on the circumferential side of the mounting plate one, a plurality of openings are evenly distributed circumferentially on the side end of the rotating cover, and the openings are connected to the cavity.

[0013] Preferably, an opening is provided in the middle of the right end of the rotating cover for the driving shaft to pass through, a conical gear ring is fixedly provided in the opening, a bevel gear is correspondingly provided in the inner ring of the conical gear ring, the bevel gear is fixedly connected to the driving shaft, an adjusting wheel is meshed between the bevel gear and the conical gear ring, the adjusting wheel is rotatably connected to the rotating shaft, the rotating shaft is slidably connected to the sliding plate, the sliding plate is fixedly connected to the electric telescopic rod, and the electric telescopic rod is fixedly connected to the right end of the mounting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When testing the material to be tested, a conveyor belt mechanism can be set at the lower side of the detection chamber to automatically move it to the lower side of the detection chamber. Through the infrared thickness measurement system of the present application, the material to be tested can be automatically tested without manual testing, and the thickness measurement efficiency and measurement accuracy are high.

[0015] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 A schematic diagram of the compensation optical path and the measurement optical path of the present invention; Figure 3 It is a schematic diagram of the heat dissipation mechanism structure of the present invention.

[0017] In the figure: 1. Shell; 2. Detection shell; 3. Detection cavity; 4. Working cavity; 5. Material to be tested; 6. Light source; 7. Internal light path reflector 1; 8. Mounting block 1; 9. Mounting block 2; 10. Light path reflector 2; 11. Infrared collector; 12. Fixing block; 13. External light path reflector; 14. Condenser; 15. Mounting plate 2; 16. Internal light path through hole; 17. Driving motor; 18. Driving shaft; 19. Quenching and tempering Plate; 20, filter; 21, mounting plate 1; 22, external light path through hole; 23, rotating cover; 24, fan 2; 25, annular groove; 26, connecting shaft; 27, gear; 28, gear ring; 29, fan 1; 30, opening; 31, vent; 32, cavity; 33, sliding plate; 34, electric telescopic rod; 35, conical gear ring; 36, opening; 37, bevel gear; 38, adjusting wheel; 39, rotating shaft. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0019] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0020] The present invention provides the following embodiments Example 1 The embodiment of the present invention provides an infrared thickness measurement system, such as Figure 1-Figure 3 As shown, it includes a shell 1, a working cavity 4 is arranged inside the shell 1, a detection shell 2 is installed at the lower end of the shell 1, and detection cavities 3 are penetrated at the upper and lower ends of the detection shell 2, and the detection cavity 3 is communicated with the working cavity 4. The detection shell 2 is correspondingly arranged at the upper end of the material to be tested 5, and a light source 6, a filter component, an external light path control component, an internal light path control component and an infrared collector 11 are installed in the detection cavity 3. The light source 6 is used to emit infrared light, and the infrared light is projected onto the infrared collector 11 through the filter component, the external light path control component and the material to be tested 5 to form a measuring light path. The infrared light is also projected onto the infrared collector 11 through the filter component and the internal light path control component to form a compensation light path; The light source 6 is fixedly arranged on the left side of the working chamber 4 .

[0021] The beneficial effects of the above technical solution are: The infrared light is emitted by the light source 6, and the infrared light passes through the inner optical path control component and the filter component to form a compensation optical path, and is incident on the infrared collector 11 to obtain a compensation optical path optical signal, which plays a role in optical stability compensation. The infrared light passes through the filter component, the outer optical path control component and the material to be tested 5 to form a measurement optical path, and finally is incident on the infrared collector 11 to obtain a measurement optical path optical signal. The ratio of the compensation optical path optical signal and the measurement optical path optical signal detected by the infrared collector 11 is proportional to the absorbance of the material to be tested 5. The processor in the infrared collector 11 is based on the Lambert-Beer law. ,in is the absorbance of the material 5 to be tested, is the absorption concentration of the material 5 to be tested, is the thickness of the material 5 to be tested, is the absorption coefficient of the material 5 to be tested, thereby obtaining the thickness of the material 5 to be tested. When testing the material 5 to be tested, a conveyor belt mechanism can be set at the lower side of the testing cavity 3 to automatically move it to the lower side of the testing cavity 3, thereby automatically testing the material 5 to be tested without manual testing. This solves the technical problems of low thickness measurement efficiency and easy impact on the production efficiency of the electrode when manual thickness measurement is used, and easy errors and low accuracy in manual thickness measurement.

[0022] Example 2 On the basis of Example 1, Figure 1-Figure 3As shown, the filter assembly includes a drive motor 17, the drive motor 17 is fixedly connected to a drive shaft 18, the drive shaft 18 is fixedly connected to a tempering disk 19, a plurality of filters 20 of different types are evenly arranged circumferentially on the tempering disk 19, the drive motor 17 is fixedly arranged at the middle of the right end of a mounting plate 1 21, the light source 6 is arranged on the left side of the mounting plate 1 21, the mounting plate 1 21 is fixedly arranged on the left side of the working chamber 4, the drive shaft 18 is rotatably connected to the left end of the mounting plate 2 15, and the mounting plate 2 15 is fixedly arranged in the middle of the working chamber 4; The inner light path control assembly includes an inner light path reflector 1 7 and an inner light path reflector 2 10. The inner light path reflector 1 7 is mounted on a mounting block 1 8. The mounting block 1 8 is fixedly arranged at the upper end of the working chamber 4. The inner light path reflector 2 10 is mounted on a mounting block 2 9. The mounting block 2 9 is fixedly connected to the right end of the mounting plate 2 15. The inner light path reflector 1 7 is correspondingly arranged on the upper side of the light source 6. The left and right ends of the upper sides of the mounting plate 1 21 and the mounting plate 2 15 are penetrated by inner light path through holes 16, and the inner light path reflector 1 7 and the inner light path reflector 2 10 are arranged corresponding to the inner light path through holes 16. The inner light path reflector 1 7 is arranged on the left side of the mounting plate 1 21, and the inner light path reflector 2 10 is arranged on the right side of the mounting plate 2 15. The inner light path reflector 2 10 is arranged corresponding to the infrared collector 11.

[0023] The beneficial effects of the above technical solution are: The inner light path reflector 1 7 and the inner light path reflector 2 10 can change the direction of the infrared light. When the infrared light passes through the inner light path control component and the filter component to form a compensation light path, it passes through the inner light path reflector 1 7, the inner light path through hole 16 on the mounting plate 1 21, the filter 20 on the tempering disk 19, the inner light path through hole 16 on the mounting plate 2 15 and the inner light path reflector 2 10 to form a compensation light path, and finally incident on the infrared collector 11; When the driving motor 17 rotates, the driving shaft 18 can drive the tempering disk 19 to rotate. The different types of filters 20 on the tempering disk 19 are filters of different wavelengths, thereby realizing modulation of multiple wavelengths. The filters are near-infrared filters. Different types of filters 20 are used to project near-infrared light of different wavelengths onto the material to be tested 5. Each filter 20 can generate a compensation optical path and a measurement optical path. The number of the plurality of filters 20 is two. The absorbance of the material to be tested 5 is ,in The optical signal incident on the infrared collector 11 by the measurement optical path generated by one of the optical filters 20, The optical signal incident on the infrared collector 11 by the measuring optical path generated by another optical filter 20, The optical signal incident on the infrared collector 11 through the compensation optical path generated by one of the optical filters 20, The optical signal incident on the infrared collector 11 is generated by a compensation optical path of another optical filter 20 .

[0024] Example 3 On the basis of Example 2, Figure 1-Figure 3 As shown, the external light path control component includes an external light path reflector 13, which is fixedly connected to the lower end of the fixed block 12, and the fixed block 12 is fixedly arranged between the front and rear ends of the working cavity 4, and the external light path reflector 13 is correspondingly arranged on the upper side of the detection cavity 3, and a condenser 14 is correspondingly arranged on the upper side of the material to be tested 5, and the condenser 14 is fixedly arranged on the upper right side of the housing 1; An infrared collector 11 is fixedly disposed on the upper end of the fixed block 12, and the infrared collector 11 is correspondingly disposed on the lower side of the condenser 14; External light path through holes 22 are provided at both left and right ends of the lower sides of the mounting plate 1 21 and the mounting plate 2 15 . The left side of the external light path through hole 22 corresponds to the light source 6 , and the right side of the external light path through hole 22 corresponds to the external light path reflector 13 .

[0025] The beneficial effects of the above technical solution are: When the infrared light passes through the filter assembly, the external light path control assembly and the material to be tested 5, it passes through the external light path through hole 22 on the lower side of the mounting plate 1 21, the filter 20, the external light path through hole 22 on the lower side of the mounting plate 2 15, the external light path reflector 13 and the material to be tested 5 in sequence. The external light path reflector 13 can change the direction of the light so that it passes through the detection cavity 3 and is incident on the material to be tested 5, and is reflected by the material to be tested 5 to the condenser 14 to form a measuring light path, and the measuring light path is finally incident on the infrared collector 11 through the condenser 14.

[0026] Example 4 On the basis of Example 2, Figure 1-Figure 3 As shown, a heat dissipation mechanism is installed in the middle of the mounting plate 1 21, and the heat dissipation mechanism includes a rotating cover 23, which is rotatably connected to the annular groove 25 at the right end of the mounting plate 1 21, and the rotating cover 23 and the mounting plate 1 21 form a cavity 32, and the driving motor 17 is arranged in the cavity 32, and a gear ring 28 is fixedly provided in the cavity 32, and a plurality of gears 27 are evenly arranged circumferentially on the gear ring 28, and the gear 27 is fixedly connected to the connecting shaft 26, and the right end of the connecting shaft 26 is fixedly connected to the fan 1 29, and the left end of the connecting shaft 26 passes through the mounting plate 1 21 and is fixedly connected to the fan 2 24, and a plurality of vents 31 are provided at one end of the housing 1 close to the fan 24, and the connecting shaft 26 is evenly arranged circumferentially on the peripheral side of the mounting plate 1 21, and a plurality of openings 30 are evenly arranged circumferentially on the side end of the rotating cover 23, and the openings 30 are communicated with the cavity 32; An opening 36 is provided in the middle of the right end of the rotating cover 23 for the driving shaft 18 to pass through, and a conical ring gear 35 is fixedly provided in the opening 36. A bevel gear 37 is correspondingly provided in the inner ring of the conical ring gear 35. The bevel gear 37 is fixedly connected to the driving shaft 18, and an adjusting wheel 38 is meshed between the bevel gear 37 and the conical ring gear 35. The adjusting wheel 38 is rotatably connected to the rotating shaft 39, and the rotating shaft 39 is slidably connected to the sliding plate 33. The sliding plate 33 is fixedly connected to the electric telescopic rod 34, and the electric telescopic rod 34 is fixedly connected to the right end of the mounting plate 21.

[0027] The beneficial effects of the above technical solution are: When the driving shaft 18 rotates, it drives the bevel gear 37 to rotate, and when the bevel gear 37 rotates, it drives the adjusting wheel 38 to rotate, and the adjusting wheel 38 drives the conical gear ring 35 to rotate, and when the conical gear ring 35 rotates, it drives the rotating cover 23 to rotate, and when the rotating cover 23 rotates, it drives the gear ring 28 to rotate, and when the gear ring 28 rotates, it drives the gear 27 to rotate, and when the gear 27 rotates, it drives the connecting shaft 26 to rotate, and when the connecting shaft 26 rotates, it drives the fan 24 and the fan 1 29 to rotate, and when the fan 1 29 rotates, it dissipates the heat of the cavity 32 to avoid the heating of the driving motor 17 when working, and when the fan 24 rotates, it dissipates the heat of the accessory area of ​​the light source 6 to avoid the temperature in the working chamber 4 from being too high and affecting the infrared light, so that the temperature in the working chamber 4 and the cavity 32 is kept within a normal range, and the vent 31 and the opening The setting of the opening 30 allows the air in the working chamber 4 and the cavity 32 to circulate freely. When the electric telescopic rod 34 is controlled to work, the extension and retraction of the electric telescopic rod 34 can drive the sliding plate 33 to move left and right, and the sliding plate 33 drives the rotating shaft 39 to move left and right. Since the rotating shaft 39 is tilted, the rotating shaft 39 slides up and down along the sliding plate 33. When the rotating shaft 39 moves, it drives the adjusting wheel 38 to move, and the adjusting wheel 38 slides along the bevel gear 37 and the bevel gear ring 35, thereby adjusting the transmission ratio of the bevel gear 37 and the bevel gear ring 35, and then changing the rotation speed of the rotating cover 23, so that the temperature control speed of the working chamber 4 and the cavity 32 can be adjusted. At the same time, it is necessary to change the rotation speed of the drive shaft 18 so that the change in the temperature control speed will not affect the working speed of the tempering disk 19.

[0028] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An infrared thickness measurement system, characterized in that: The invention comprises a shell (1), wherein a working cavity (4) is provided inside the shell (1), a detection shell (2) is installed at the lower end of the shell (1), a detection cavity (3) is provided through the upper and lower ends of the detection shell (2), the detection cavity (3) is communicated with the working cavity (4), the detection shell (2) is arranged correspondingly at the upper end of a material to be tested (5), a light source (6), a filter component, an external light path control component, an internal light path control component and an infrared collector (11) are installed in the detection cavity (3), the light source (6) is used to emit infrared light, the infrared light is projected onto the infrared collector (11) via the filter component, the external light path control component and the material to be tested (5), thereby forming a measuring light path, and the infrared light is also projected onto the infrared collector (11) via the filter component and the internal light path control component, thereby forming a compensating light path.

2. The infrared thickness measurement system according to claim 1, characterized in that: The light source (6) is fixedly arranged on the left side of the working chamber (4).

3. An infrared thickness measurement system according to claim 2, characterized in that: The filter assembly comprises a drive motor (17), the drive motor (17) is fixedly connected to a drive shaft (18), the drive shaft (18) is fixedly connected to a tempering disk (19), a plurality of filters (20) of different types are evenly arranged circumferentially on the tempering disk (19), the drive motor (17) is fixedly arranged at the middle of the right end of a mounting plate 1 (21), the light source (6) is arranged at the left side of the mounting plate 1 (21), the mounting plate 1 (21) is fixedly arranged at the left side of a working chamber (4), the drive shaft (18) is rotatably connected to the left end of a mounting plate 2 (15), and the mounting plate 2 (15) is fixedly arranged at the middle of the working chamber (4).

4. The infrared thickness measurement system according to claim 3, characterized in that: The inner light path control component comprises an inner light path reflector 1 (7) and an inner light path reflector 2 (10). The inner light path reflector 1 (7) is mounted on a mounting block 1 (8). The mounting block 1 (8) is fixedly arranged at the upper end of the working chamber (4). The inner light path reflector 2 (10) is mounted on a mounting block 2 (9). The mounting block 2 (9) is fixedly connected to the right end of the mounting plate 2 (15). The inner light path reflector 1 (7) is correspondingly arranged on the upper side of the light source (6).

5. The infrared thickness measurement system according to claim 4, characterized in that: Both left and right ends of the upper sides of the mounting plate 1 (21) and the mounting plate 2 (15) are penetrated by inner light path through holes (16); the inner light path reflector 1 (7) and the inner light path reflector 2 (10) are arranged corresponding to the inner light path through holes (16); the inner light path reflector 1 (7) is arranged on the left side of the mounting plate 1 (21); the inner light path reflector 2 (10) is arranged on the right side of the mounting plate 2 (15); and the inner light path reflector 2 (10) is arranged corresponding to the infrared collector (11).

6. The infrared thickness measurement system according to claim 3, characterized in that: The external light path control component comprises an external light path reflector (13), the external light path reflector (13) being fixedly connected to the lower end of a fixed block (12), the fixed block (12) being fixedly arranged between the front and rear ends of the working cavity (4), the external light path reflector (13) being correspondingly arranged on the upper side of the detection cavity (3), and a condenser (14) being correspondingly arranged on the upper side of the material to be tested (5), and the condenser (14) being fixedly arranged on the upper right side of the housing (1).

7. An infrared thickness measurement system according to claim 6, characterized in that: An infrared collector (11) is fixedly provided on the upper end of the fixed block (12), and the infrared collector (11) is correspondingly arranged on the lower side of the condenser (14).

8. An infrared thickness measurement system according to claim 7, characterized in that: External light path through holes (22) are provided through the left and right ends of the lower sides of the mounting plate 1 (21) and the mounting plate 2 (15); the left side of the external light path through hole (22) is arranged corresponding to the light source (6), and the right side of the external light path through hole (22) is arranged corresponding to the external light path reflector (13).

9. The infrared thickness measurement system according to claim 3, characterized in that: A heat dissipation mechanism is installed in the middle of the first mounting plate (21), and the heat dissipation mechanism includes a rotating cover (23), the rotating cover (23) is rotatably connected to the annular groove (25) at the right end of the first mounting plate (21), and the rotating cover (23) and the first mounting plate (21) form a cavity (32), the driving motor (17) is arranged in the cavity (32), a gear ring (28) is fixedly provided in the cavity (32), a plurality of gears (27) are evenly distributed around the gear ring (28), and the gears (27) are connected to the connecting shaft ( The connecting shaft (26) is fixedly connected to the fan one (29), the right end of the connecting shaft (26) is fixedly connected to the fan one (29), the left end of the connecting shaft (26) passes through the mounting plate one (21) and is fixedly connected to the fan two (24), a plurality of vents (31) are provided at one end of the housing (1) close to the fan two (24), the connecting shaft (26) is evenly distributed circumferentially on the circumferential side of the mounting plate one (21), a plurality of openings (30) are evenly distributed circumferentially on the side end of the rotating cover (23), and the openings (30) are communicated with the cavity (32).

10. An infrared thickness measurement system according to claim 9, characterized in that: An opening (36) is provided in the middle of the right end of the rotating cover (23) for the driving shaft (18) to pass through. A conical gear ring (35) is fixedly provided in the opening (36). A bevel gear (37) is correspondingly provided in the inner ring of the conical gear ring (35). The bevel gear (37) is fixedly connected to the driving shaft (18). An adjusting wheel (38) is meshed between the bevel gear (37) and the conical gear ring (35). The adjusting wheel (38) is rotatably connected to the rotating shaft (39). The rotating shaft (39) is slidably connected to the sliding plate (33). The sliding plate (33) is fixedly connected to the electric telescopic rod (34). The electric telescopic rod (34) is fixedly connected to the right end of the mounting plate (21).

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