Multi-Product Measurement Function Method

Abstract

The present invention relates to the field of tablet quality inspection technology, and discloses a multi-product measurement function method, wherein a product is placed in a detection device, and the surface of the product is cleaned by the detection device, so that the fine particles of powder or other medicines adhering to the surface of the product fall off from the surface of the product, thereby preventing interference with the detection result during subsequent visual inspection. When in use, the outer surface of the tablet is cleaned by a cleaning mechanism to prevent powder or other fine particles adhering to the surface from interfering with the detection result, and the medicine is sequentially guided into a plurality of square grooves by a material guide mechanism and aligned by an alignment mechanism. After the front visual inspection operation is completed, the tablet is turned over by a flipping mechanism. In the subsequent transportation process, the other side and the peripheral side of the tablet are fully visually inspected by the rotation of the second feed disc and the self-rotation of the rotating plate. The entire inspection process remains stationary, thereby improving the accuracy of the inspection.

Description

Technical Field

[0001] The present invention relates to the technical field of tablet quality inspection, and more specifically to a multi-product measurement function method. Background Art

[0002] Tablets are common medicinal items in people's daily lives. Currently, most of the equipment for making tablets is a tablet press, which fills the material in the mold and squeezes the upper and lower punches to complete the production. From filling to pressing, this series of actions are completed by mechanical equipment, with a limited number of detection and adjustment devices added in the middle, so the finished tablets will have various quality problems. In summary, there are mainly technical problems such as incomplete appearance and errors in tablet weight, hardness, and brittleness. Therefore, after the tablets are pressed, the finished product needs to be further tested to remove unqualified tablets.

[0003] In the prior art, in order to conduct a more detailed inspection of the appearance of the tablets, a visual inspection system can be used to conduct a rapid visual inspection of the appearance of the tablets, including shape, color, size, etc., as well as to detect abnormal conditions such as foreign matter.

[0004] However, in actual use, the visual inspection system inspects the surface of the medicine when the medicine is in the transportation state, and can only inspect one or two sides of the tablet, but not the surrounding side of the tablet. When small cracks appear on the surrounding side of the medicine, it is difficult to perform the inspection function, which may easily lead to damaged medicines being sold and cause safety problems. Before the inspection, the surface of the tablet is prone to adhere to powder or fine particles from other tablets. During visual inspection, these powders or fine particles are easy to block the cracks, making it difficult to accurately detect during inspection, affecting the accuracy of the test results. Summary of the invention

[0005] In order to overcome the above defects of the prior art, the present invention provides a multi-product measurement function method to solve the problems existing in the above background technology.

[0006] The present invention provides the following technical solutions:

[0007] A multi-product measurement function method, the method comprising the following steps:

[0008] S1. Place the product into a testing device and clean the surface of the product through the testing device to remove particles adhering to the surface of the product;

[0009] S2. After the surface cleaning of the product is completed, the product is transported in sequence through the detection device, and a visual inspection operation is performed on the front during the transportation process;

[0010] S3. After the first inspection is completed, the inspection device transports the product to the designated location, then turns the product over and performs a second visual inspection operation during the subsequent transportation process;

[0011] S4. During the second visual inspection of the product, the inspection device rotates the product to conduct a comprehensive visual inspection of the product's circumference;

[0012] The detection device adopted includes a machine body, a first feed disc and a second feed disc are rotatably installed on the top of the machine body, the first feed disc and the second feed disc are connected by a transmission mechanism, a cleaning mechanism is arranged on the top of the machine body, the cleaning mechanism includes a cleaning box, a vibration cleaning component is arranged in the cleaning box, a material guiding mechanism is arranged on the top of the machine body, the material guiding mechanism includes a feeding barrel, a spiral feeding component is arranged in the feeding barrel, the spiral feeding component is connected to the vibration cleaning component, a plurality of square grooves are opened on the top of the first feed disc, and an alignment mechanism is arranged in each of the plurality of square grooves, the alignment mechanism is used to align the product, a front visual detection component is arranged on the top of the machine body, and the front The visual inspection component corresponds to the position of the multiple square grooves, the top of the second conveyor is provided with multiple circular grooves, the inner walls of the circumferential sides of the multiple circular grooves are provided with mounting grooves, the circumferential side visual inspection components are arranged in the multiple mounting grooves, the self-rotation components are arranged in the multiple circular grooves, the bottom end of the second conveyor is provided with an annular groove, the outer walls of the circumferential sides of the annular groove are provided with multiple limit assemblies, the multiple limit assemblies are respectively adapted to the multiple self-rotation assemblies, the top of the body is provided with a reverse side visual inspection component, the reverse side visual inspection component corresponds to the position of the multiple circular grooves, the top of the body is provided with a flipping mechanism, the flipping mechanism is arranged at the top of the body, and the flipping mechanism is used to flip the product.

[0013] Furthermore, the transmission mechanism includes two driving shafts, a transmission cavity is provided in the body, the bottom ends of the two driving shafts are rotatably mounted on the bottom inner wall of the transmission cavity, the top ends of the two driving shafts extend out of the body and are fixedly connected to the bottom ends of the first input plate and the second input plate respectively, a motor groove is provided in the bottom inner wall of the transmission cavity, a driving motor is fixedly mounted in the motor groove, the output shaft of the driving motor is connected to the bottom end of one of the driving shafts, a transmission shaft is rotatably mounted inside, a transmission gear is coaxially mounted on one of the driving shafts, a first sprocket is coaxially mounted on the other driving shaft, a transmission gear and a first sprocket are coaxially mounted on the transmission shaft, the two transmission gears are meshed, and the two first sprockets are connected by a first chain.

[0014] Furthermore, the vibration cleaning component includes an inclined screen plate, a conveying chamber and an extrusion chamber arranged up and down are opened in the cleaning box, vertical square holes are opened on opposite sides of the cleaning box, the two ends of the square hole are respectively located in the conveying chamber and the extrusion chamber, and extrusion lifting blocks are slidably installed in the two square holes, and the tops of the two extrusion lifting blocks are both inclined, the bottom end of the inclined screen plate is fixedly connected to the top inclined surfaces of the two extrusion lifting blocks, the bottoms of the two extrusion lifting blocks extend into the extrusion chamber and are fixedly installed with extrusion balls, and the extrusion chamber A circular shaft is rotatably installed, and plum blossom extrusion wheels are fixed at both ends of the circular shaft. The two plum blossom extrusion wheels are respectively adapted to the two extrusion balls. A through hole is opened on the side inner wall of the cleaning box, and is connected to the connecting pipe through the through hole. Two guide plates are symmetrically fixedly installed on both sides of the top of the inclined screen plate, and the positions of the two guide plates correspond to the positions of the connecting pipe. A collecting hole is opened on the side inner wall of the conveying cavity, and a collecting drawer is slidably installed in the collecting hole. The collecting drawer is located on the lower side of the inclined screen plate, and a feed hopper is arranged on the top of the cleaning box.

[0015] Furthermore, the spiral feeding assembly includes a feed shaft, which is rotatably mounted on the inner wall of the feed barrel, and a plurality of silicone rods are irregularly arranged on the circumferential outer wall of the feed shaft, a feed motor is fixedly mounted on one end of the feed barrel, the output shaft of the feed motor extends into the feed barrel and is fixedly connected to one end of the feed shaft, connecting holes are provided at the top of the feed barrel and the bottom of the extrusion chamber, a large sprocket is fixedly sleeved on the output shaft of the feed motor, a small sprocket is fixedly sleeved on the circular shaft, a transmission chain is meshed and installed on the large sprocket and the small sprocket, a feed hole is provided on the top of one end of the feed barrel, and a discharge hole is provided at the lower part of the other end, the other end of the connecting pipe is fixedly mounted in the feed hole, a discharge pipe is provided in the discharge hole, a slide is fixedly mounted on the top of the machine body, the slide corresponds to the position of the discharge pipe, and a sensor is provided on the slide.

[0016] Further, the alignment mechanism includes two rectangular slides, and sliding grooves are provided on the opposite sides of the square groove, and the two rectangular slides are slidably installed in the two sliding grooves through a moving component, and the side portions of the two rectangular slides are provided with an alignment component, and the alignment component includes two sliding rods, and the side portions of the rectangular slides are provided with two circular holes, and the two sliding rods are slidably connected to the two circular holes respectively, and the ends of the two sliding rods away from the square grooves are fixedly installed with circular plates, and the outer walls of the peripheral sides of the two sliding rods are sleeved with return springs, and the other ends of the two sliding rods are jointly fixedly installed with a rectangular alignment plate, a rectangular hole is provided in the upper part of the rectangular alignment plate, a limiting shaft is fixedly installed in the rectangular hole, and two L-shaped alignment plates are slidably installed on the limiting shaft, and the sides of the two L-shaped alignment plates are provided with sensing grooves, and sensors are provided in the two sensing grooves, and the sides of the rectangular slides are provided with avoidance grooves, and two connecting rods are rotatably installed in the avoidance grooves, and the other ends of the two connecting rods are respectively rotatably connected to the side portions of the two L-shaped alignment plates.

[0017] Furthermore, the moving assembly includes a bidirectional screw, a moving cavity is opened in the first input disk, the bidirectional screw is rotatably installed in the moving cavity, a second motor slot is opened on the side of the moving cavity, a moving motor is fixedly installed in the second motor slot, the output shaft of the moving motor is fixedly connected to one end of the bidirectional screw, sliding holes are opened between the moving cavity and the two sliding slots, sliders are slidably installed in the two sliding holes, the two sliders are respectively threadedly installed on the two ends of the bidirectional screw, a square rod is fixedly installed on one side of the two sliders, and the sides of the two square rods are respectively fixedly connected to the sides of the two rectangular slides.

[0018] Furthermore, the self-rotating component includes a rotating shaft, a rotating hole is opened on the inner wall of the bottom end of the circular groove, the rotating shaft is rotatably installed in the rotating hole, the top end of the rotating shaft extends into the circular groove and is fixedly installed with a rotating plate, the bottom end of the rotating shaft extends into the annular groove and is fixedly sleeved with a gear, and five arc-shaped racks are fixedly installed on the top of the body, and the five arc-shaped racks are all adapted to the gears.

[0019] Furthermore, the limiting assembly includes a telescopic sleeve, which is fixedly installed on the inner wall of the circumferential side of the annular groove, and a telescopic shaft is slidably installed in the telescopic sleeve, a compression spring is fixedly installed on one end of the telescopic shaft, and an extrusion plate is fixedly installed on the other end of the telescopic shaft, and the extrusion plate is adapted to the rotating shaft, a square block is fixedly sleeved on the outer wall of the circumferential side of the telescopic shaft, and an extrusion shaft is fixedly installed on the bottom of the square block, and the extrusion shaft is adapted to the five arc-shaped racks.

[0020] Furthermore, the flipping mechanism includes a U-shaped block, which is fixedly installed on the top of the machine body, and a flipping motor is fixedly installed on the side of the U-shaped block, and the output shaft of the flipping motor extends into the U-shaped block and is fixedly sleeved with a flipping plate, and a lifting groove is provided on the side of the flipping plate, and electric telescopic rods are provided on both sides of the flipping plate, and the movable ends of the two electric telescopic rods extend into the lifting grooves and are fixedly installed with fixed plates, and adjacent sides of the two fixed plates are provided with T-shaped grooves, and T-shaped sliders are slidably installed in the two T-shaped grooves, and adjacent sides of the two T-shaped sliders are fixedly installed with clamping plates.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. When the feed shaft rotates, the large sprocket, the small sprocket and the transmission chain mesh together, driving the circular shaft and the two plum blossom extrusion wheels to rotate synchronously. When the two plum blossom extrusion wheels rotate, the two extrusion balls are continuously squeezed, so that the two extrusion lifting blocks are lifted and lowered reciprocatingly, driving the inclined screen plate to realize the vibration function. When the inclined screen plate vibrates, the powder adhered to the surface of the product and the fine particles of other medicines can be shaken off into the collection drawer through the vibration effect for collection. This arrangement can prevent the powder or fine particles from adhering to the surface of the product during the subsequent visual inspection process, which may interfere with the inspection process.

[0023] 2. The two rectangular slides are driven to move toward each other synchronously through the moving assembly. When the rectangular slide moves, the two slide bars and the rectangular alignment plate are driven to move synchronously, and the product is pushed to the middle position through the two rectangular alignment plates. When the two rectangular alignment plates are in contact with the product, they remain stationary through the extrusion effect. At this time, the rectangular slide continues to move. Under the connection of the two connecting rods, the two L-shaped alignment plates located in the same rectangular hole move toward each other synchronously, pushing the product to the axis position until multiple sensors are in contact with the product, thereby realizing the product alignment function.

[0024] 3. When the second input disc rotates, it can drive the rotating plate, the rotating shaft and the telescopic shaft to rotate synchronously. When the extrusion shaft arranged on the telescopic shaft contacts the arc-shaped rack, the extrusion shaft is squeezed by the arc-shaped surface of the arc-shaped rack, so that the telescopic shaft slides in the telescopic sleeve, thereby contacting the limit of the rotating shaft. At this time, the rotating shaft is driven to rotate 72 degrees through the meshing action of the gear and the arc-shaped rack, thereby driving the rotating plate and the product to rotate 72 degrees synchronously, realizing the comprehensive detection function of the product side, and when the product rotates to the specified position, the back side of the product can be visually inspected through the back side visual inspection component, thereby realizing the comprehensive detection function and improving the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the detection device;

[0026] Figure 2 It is a schematic diagram of the partial cross-section structure of the machine body and the second conveyor tray in this embodiment;

[0027] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0028] Figure 4 This is a schematic diagram of the partial cross-section structure of the cleaning box, the feeding cylinder, and the connecting pipe in this embodiment;

[0029] Figure 5 for Figure 4 The enlarged structural diagram at B in the middle;

[0030] Figure 6 This is a schematic diagram of the partial cross-section structure of the feed barrel and the slideway in this embodiment;

[0031] Figure 7 for Figure 6 The enlarged structural diagram at C in the middle;

[0032] Figure 8 This is a schematic diagram of a partial cutaway structure of the first transport tray in this embodiment;

[0033] Fig. 9 for Figure 8 The enlarged structural diagram at D in the middle;

[0034] Fig.10 It is a partial cross-sectional structural schematic diagram of the machine body, the second conveyor plate, the rotating plate, and the telescopic sleeve in this embodiment;

[0035] Fig.11 for Fig.10 The enlarged structural diagram at E in the middle;

[0036] Fig.12 It is a schematic diagram of the partially cut-away and enlarged structure of the flip plate and the fixed plate in this embodiment.

[0037] The accompanying drawings are marked as follows: 1, machine body; 2, first feed plate; 3, second feed plate; 4, driving shaft; 5, driving motor; 6, transmission shaft; 7, transmission gear; 8, first sprocket; 9, first chain; 10, cleaning box; 11, extrusion lifting block; 12, inclined screen plate; 13, guide plate; 14, round shaft; 15, plum blossom extrusion wheel; 16, extrusion ball; 17, feed barrel; 18, feed shaft; 19, silicone rod; 20, feed motor; 21, large sprocket; 22, small sprocket; 23, transmission chain; 24, connecting pipe; 25, collection drawer; 26, feed hopper; 27, discharge pipe; 28, slideway; 29, sensor; 30, rectangular slide plate; 31, two-way screw rod; 32, mobile motor; 33, slider; 3 4. Square rod; 35. Sliding rod; 36. Rectangular alignment plate; 37. Round plate; 38. Reset spring; 39. Limiting shaft; 40. L-shaped alignment plate; 41. Connecting rod; 42. Sensor; 43. Rotating shaft; 44. Rotating plate; 45. Peripheral visual detection component; 46. Gear; 47. Arc rack; 48. Telescopic sleeve; 49. Telescopic shaft; 50. Compression spring; 51. Extrusion plate; 52. Square block; 53. Extrusion shaft; 54. U-shaped block; 55. Flip motor; 56. Flip plate; 57. Electric telescopic rod; 58. Fixed plate; 59. T-shaped slider; 60. Clamp; 61. Front visual detection component; 62. Back visual detection component; 63. Dust-proof glass cover; 64. Clamping robot arm. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0039] Figure 1-Figure 12 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 12 The present invention is further described.

[0040] Specifically, the multi-product measurement function method comprises the following steps:

[0041] S1. Place the product into the testing device and clean the surface of the product through the testing device so that the fine particles of drug powder or other drugs adhering to the surface of the product fall off from the surface of the product to prevent interference with the test results during subsequent visual inspection;

[0042] S2. After the surface cleaning of the product is completed, the product is transported in sequence through the detection device, and a visual inspection operation is performed on the front during the transportation process;

[0043] S3. After the first inspection is completed, the inspection device transports the product to the designated location, then turns the product over and performs a second visual inspection operation during the subsequent transportation process;

[0044] S4. During the second visual inspection of the product, not only can the reverse side of the product be visually inspected, but also during the conveying process, it can drive the product to rotate, thereby performing a comprehensive visual inspection on the surrounding side of the product, thus improving the comprehensiveness and accuracy of the inspection.

[0045] See attached Figure 1-Figure 12 The detection device used includes a body 1, a dustproof glass cover 63 is arranged on the top of the body 1, and the dustproof function is realized by the dustproof glass cover 63 to prevent pollution to the product. A first feed tray 2 and a second feed tray 3 are rotatably installed on the top of the body 1, and the first feed tray 2 and the second feed tray 3 are connected by a transmission mechanism. A cleaning mechanism is arranged on the top of the body 1, and the cleaning mechanism includes a cleaning box 10, and a vibration cleaning component is arranged in the cleaning box 10. A material guiding mechanism is arranged on the top of the body 1, and the material guiding mechanism includes a feeding barrel 17, and a spiral feeding component is arranged in the feeding barrel 17, and the spiral feeding component is connected to the vibration cleaning component. A plurality of square grooves are opened on the top of the first feed tray 2, and an alignment mechanism is arranged in each of the plurality of square grooves. The alignment mechanism is used to align the product. A front visual detection component 61 is arranged on the top of the body 1, and the front visual detection component 61 corresponds to the position of the plurality of square grooves. The top of the machine body 1 is provided with a plurality of circular grooves, and the inner walls of the circumferential sides of the plurality of circular grooves are provided with mounting grooves, and the circumferential side visual detection components 45 are arranged in the plurality of mounting grooves. Specifically, the circumferential side visual detection components 45 are existing technologies, such as CCD cameras, and are controlled by a PLC controller. The plurality of circular grooves are provided with self-rotation components. The bottom end of the second conveyor 3 is provided with an annular groove, and the outer walls of the circumferential sides of the annular groove are provided with a plurality of limit components, and the plurality of limit components are respectively adapted to the plurality of self-rotation components. The top of the machine body 1 is provided with a reverse visual detection component 62, and specifically, the reverse visual detection component 62 and the front visual detection component 61 are both existing technologies and are controlled by a PLC controller, and their specific working principles are not described in detail here. The reverse visual detection component 62 corresponds to the positions of the plurality of circular grooves, and the top of the machine body 1 is provided with a flipping mechanism, which is arranged at the top of the machine body 1, and is used to flip the product. The reverse visual detection component 62 and the front visual detection component 61 can also use CCD cameras.

[0046] In order to enable the first feed plate 2 to drive the second feed plate 3 to rotate synchronously in the opposite direction when rotating, the following features are specifically provided:

[0047] The transmission mechanism includes two drive shafts 4. A transmission cavity is provided in the machine body 1. The bottom ends of the two drive shafts 4 are rotatably mounted on the bottom inner wall of the transmission cavity. The top ends of the two drive shafts 4 extend outside the machine body 1 and are fixedly connected to the bottom ends of the first input plate 2 and the second input plate 3, respectively. A motor slot is provided in the bottom inner wall of the transmission cavity. A drive motor 5 is fixedly installed in the motor slot. Specifically, the drive motor 5 is controlled by a PLC controller. The output shaft of the drive motor 5 is connected to the bottom end of one of the drive shafts 4. A transmission shaft 6 is rotatably installed in the transmission cavity. A transmission gear 7 is coaxially installed on one of the drive shafts 4. A first sprocket 8 is coaxially mounted on the other driving shaft 4, and a transmission gear 7 and the first sprocket 8 are coaxially mounted on the transmission shaft 6. The two transmission gears 7 are meshed with each other, and the two first sprockets 8 are connected by a first chain 9. This arrangement enables, when the driving motor 5 drives one of the driving shafts 4 to rotate, the two transmission gears 7 drive the transmission shaft 6 to rotate synchronously in the opposite direction. When the transmission shaft 6 rotates, the other driving shaft 4 is driven to rotate through the meshing action of the two first sprockets 8 and the first chain 9, thereby causing the first input tray 2 and the second input tray 3 to rotate synchronously in the opposite direction, thereby realizing the visual inspection operation on both sides of the product.

[0048] In order to vibrate and clean the product surface during transportation, the following features are also specifically set:

[0049] Furthermore, the vibration cleaning component includes an inclined screen plate 12. Specifically, the inclination angle of the inclined screen plate 12 should be set between five and ten degrees, so that when the inclined screen plate 12 is in a stationary state, the product above it will not move. The upper and lower parts of the cleaning box 10 are respectively provided with a conveying chamber and an extrusion chamber. The cleaning box 10 is provided with vertical square holes on opposite sides. The two ends of the square holes are respectively located in the conveying chamber and the extrusion chamber. Extrusion lifting blocks 11 are slidably installed in the two square holes. The tops of the two extrusion lifting blocks 11 are both inclined. The bottom end of the inclined screen plate 12 is fixedly connected to the top inclined surfaces of the two extrusion lifting blocks 11. Extrusion balls 16 are fixedly installed at the bottoms of the two extrusion lifting blocks 11. A circular shaft 14 is rotatably installed in the extrusion chamber. Both ends of the circular shaft 14 are fixed with plum blossom extrusion wheels 15. The two plum blossom extrusion wheels 15 are respectively adapted to the two extrusion balls 16. The plum blossom extrusion wheel 15 is a plurality of arc-shaped protrusions arranged at intervals on the side of the disc-shaped rotating wheel. The inner wall of the side of the cleaning box 10 is provided with a through hole and connected to the connecting pipe 24 through the through hole. Two guide plates 13 are symmetrically fixedly installed on both sides of the top of the inclined screen plate 12. The positions of the two guide plates 13 correspond to the positions of the connecting pipe 24. The spacing between the two guide plates 13 gradually decreases in the direction close to the connecting pipe 24, so that all the products enter the connecting pipe 24. A collecting hole is provided on the side of the conveying cavity, and a collecting drawer 25 is slidably installed in the collecting hole. The collecting drawer 25 is located at the lower side of the inclined screen plate 12 and collects the particles screened by the inclined screen plate 12. A feeding hopper 26 is provided on the top of the cleaning box 10. This arrangement enables that when the medicine enters the cleaning box 10 through the feeding hopper 26, the two plum blossom extrusion wheels 15 are driven to rotate synchronously when the circular shaft 14 rotates, and the two extrusion balls 16 are continuously squeezed, so that the two extrusion lifting blocks 11 drive the inclined screen plate 12 to vibrate continuously, thereby causing powder or fine particles on the surface of the product to fall off, thereby realizing the cleaning function of the product surface.

[0050] Furthermore, a compression spring is provided on the upper side of each extrusion lifting block 11, and the top of the compression spring is supported on the inner wall of the cleaning box 10, thereby pushing the extrusion lifting block 11 to move downward and ensuring that the extrusion ball 16 always presses the corresponding plum blossom extrusion wheel 15. The square hole can be replaced with a dovetail groove or a T-shaped groove to ensure that the extrusion lifting block 11 is lifted more stably.

[0051] In order to drive the inclined screen plate 12 to vibrate during the material guiding process, the following features are also specifically provided:

[0052] The spiral feeding assembly includes a feed shaft 18, both ends of which are rotatably mounted on the inner wall of a feed barrel 17, a plurality of silicone rods 19 are irregularly arranged on the peripheral outer wall of the feed shaft 18, a feed motor 20 is fixedly mounted on one end of the feed barrel 17, an output shaft of the feed motor 20 extends into the feed barrel 17 and is fixedly connected to one end of the feed shaft 18, connecting holes are provided at the top of the feed barrel 17 and at the bottom of the extrusion chamber, a large sprocket 21 is fixedly sleeved on the output shaft of the feed motor 20, a small sprocket 22 is fixedly sleeved on the circular shaft 14, the large sprocket 21 and the small sprocket 22 are connected by a transmission chain 23, a feed hole is provided at the top of one end of the feed barrel 17, and a discharge hole is provided at the lower part of the other end, further, the feed barrel 17 can be gradually inclined downward along the product conveying direction to make the product conveying more The other end of the connecting pipe 24 is fixedly installed in the feed hole, and a discharge pipe 27 is arranged in the discharge hole. A slideway 28 is fixedly installed on the top of the machine body 1, and the slideway 28 corresponds to the position of the discharge pipe 27. A sensor 29 is arranged on the slideway 28. Specifically, the feed motor 20 is electrically connected to the sensor 29, and both are controlled by a PLC controller. Such a setting can drive the feed shaft 18 to rotate when the feed motor 20 is working, and drive the product to move to the discharge pipe 27 through a plurality of silicone rods 19 arranged on the outer wall of the feed shaft 18. When the feed shaft 18 is rotating, the large sprocket 21, the small sprocket 22 and the transmission chain 23 can drive the circular shaft 14 to rotate synchronously, so that when the feed shaft 18 rotates, the circular shaft 14 is driven to rotate faster, thereby improving the vibration cleaning effect. In this embodiment, the sensor 29 is a photoelectric sensor.

[0053] In order to align the product after it falls into the square slot, the following features are also specifically set:

[0054] The alignment mechanism includes two rectangular slides 30, and slide grooves are provided on the opposite sides of the square groove. The two rectangular slides 30 are slidably installed in the two slide grooves through moving components. The sides of the two rectangular slides 30 are provided with alignment components. The alignment components include two slide bars 35. The sides of the rectangular slides 30 are provided with two circular holes. The two slide bars 35 are slidably connected with the two circular holes respectively. A circular plate 37 is fixedly installed at one end of the two slide bars 35 away from the square groove. The outer walls of the peripheral sides of the two slide bars 35 are sleeved with return springs 38. The other ends of the two slide bars 35 are jointly fixedly installed with a rectangular alignment plate 36. The return spring 38 is located between the rectangular slide 30 and the circular plate 37. A rectangular hole is provided on the upper part of the rectangular alignment plate 36. A limit shaft 39 is fixedly installed in the rectangular hole. Two L-shaped alignment plates 40 are slidably installed on the limit shaft 39. The sides of the two L-shaped alignment plates 40 are provided with Induction slots, sensors 42 are arranged in both induction slots, and an avoidance slot is provided on the side of the rectangular slide 30. Two connecting rods 41 are rotatably installed in the avoidance slot. The other ends of the two connecting rods 41 are respectively rotatably connected with the sides of the two L-shaped alignment plates 40. In this way, after the product falls into the square slot, the two rectangular slides 30 are driven to move toward each other synchronously through the moving assembly, so that the two rectangular alignment plates 36 move synchronously, and the product is pushed to the middle position. When the product is limited by the two rectangular alignment plates 36, the rectangular slide 30 continues to move, and through the connection of the connecting rod 41, the two L-shaped alignment plates 40 located in the same rectangular hole are driven to move toward each other synchronously, so as to push the product to the axis position, and realize the alignment function. Through the setting of multiple sensors 42, after the product is in the axis position, the electrical signal can be transmitted to the moving assembly, driving each component to reset. In the initial state, the connecting rod 41 is inclined, and the distance between the two connecting rods 41 gradually decreases in the direction close to the rectangular alignment plate 36. The sensor 42 is a pressure sensor.

[0055] In order to drive the two rectangular slides 30 to move synchronously toward each other, the following features are also specifically provided:

[0056] The moving assembly includes a bidirectional screw rod 31, a moving cavity is opened in the first input disc 2, the bidirectional screw rod 31 is rotatably installed in the moving cavity, a second motor slot is opened on the side of the moving cavity, and a moving motor 32 is fixedly installed in the second motor slot. Specifically, multiple sensors 42 and the moving motor 32 are controlled by a PLC controller, the output shaft of the moving motor 32 is fixedly connected to one end of the bidirectional screw rod 31, sliding holes are opened between the moving cavity and the two sliding slots, and sliders 33 are slidably installed in the two sliding holes, and the two sliders 33 are respectively threadedly installed on the two ends of the bidirectional screw rod 31, and square rods 34 are fixedly installed on the opposite sides of the two sliders 33. The sides of the two square rods 34 are respectively fixedly connected to the sides of the two rectangular slides 30, and the rotation directions of the threads at the two ends of the bidirectional screw rod 31 are opposite. In this way, when the moving motor 32 is started, the bidirectional screw rod 31 can be driven to rotate, so that the two sliders 33 can be driven to move synchronously towards each other under the action of the threads, and then the two rectangular slides 30 are driven to move synchronously through the square rod 34 to achieve the alignment function.

[0057] In order to adjust the angle of the product during transportation, the following features are also set:

[0058] The self-rotating assembly includes a rotating shaft 43, a rotating hole is provided at the bottom of the circular groove, and the rotating shaft 43 is rotatably installed in the rotating hole. The top end of the rotating shaft 43 extends into the circular groove and is fixedly installed with a rotating plate 44, and the bottom end of the rotating shaft 43 extends into the annular groove and is fixedly sleeved with a gear 46. Five arc-shaped racks 47 are fixedly installed on the top of the body 1. Specifically, the number of teeth provided on each arc-shaped rack 47 is a fixed number, and it can drive the gear 46 to rotate seventy-two degrees, and the arc-shaped surface of the arc-shaped rack 47 is convex, which is convenient for achieving a better extrusion effect. The five arc-shaped racks 47 are all adapted to the gear 46. Such an arrangement can enable the rotating shaft 43 and the gear 46 to rotate synchronously when the second input plate 3 rotates. When the gear 46 moves to the arc-shaped rack 47, the gear 46 is driven to rotate seventy-two degrees through meshing, thereby driving the rotating plate 44 and the product to rotate seventy-two degrees synchronously, thereby realizing the visual inspection function of different sides. The five arc-shaped racks 47 respectively drive the same rotating shaft 43 to rotate 72 degrees, so that each rotating shaft 43 can drive the rotating plate 44 to rotate 360 ​​degrees.

[0059] In order to limit the rotation shaft 43 when it is not rotating, the following features are specifically provided:

[0060] The limiting assembly includes a telescopic sleeve 48, which is fixedly mounted on the inner wall of the circumferential side of the annular groove, a telescopic shaft 49 is slidably mounted in the telescopic sleeve 48, a compression spring 50 is fixedly mounted on one end of the telescopic shaft 49, and an extrusion plate 51 is fixedly mounted on the other end of the telescopic shaft 49, the extrusion plate 51 is adapted to the rotating shaft 43, a square block 52 is fixedly sleeved on the outer wall of the circumferential side of the telescopic shaft 49, and an extrusion shaft 53 is fixedly mounted on the bottom of the square block 52, and the extrusion shaft 53 is adapted to the five arc-shaped racks 47. In this way, when the telescopic shaft 49 is in a normal state, the elastic action of the compression spring 50 can drive the extrusion plate 51 to squeeze the rotating shaft 43, thereby limiting it and preventing it from rotating, and when the extrusion shaft 53 contacts the arc surface of the arc-shaped rack 47, the extrusion shaft 53 is squeezed by the arc surface, so that the telescopic shaft 49 slides into the telescopic sleeve 48, thereby driving the extrusion plate 51 to release the extrusion effect on the rotating shaft 43, so that the rotating shaft 43 can rotate.

[0061] In order to be able to turn the product over, the following features are also set:

[0062] The flip mechanism includes a U-shaped block 54, which is fixedly installed on the top of the machine body 1. A flip motor 55 is fixedly installed on the side of the U-shaped block 54. The output shaft of the flip motor 55 extends into the U-shaped block 54 and is fixedly sleeved with a flip plate 56. A lifting groove is opened on the side of the flip plate 56. Electric telescopic rods 57 are arranged on both sides of the flip plate 56. Specifically, the flip motor 55 and the two electric telescopic rods 57 are controlled by a PLC controller. The movable ends of the two electric telescopic rods 57 extend into the lifting groove and are fixedly provided with a fixed plate 58. The adjacent sides of the two fixed plates 58 are provided with a T-shaped slide groove. The two T-shaped slides T-shaped sliders 59 are slidably installed in the grooves, and clamping plates 60 are fixedly installed on adjacent sides of the two T-shaped sliders 59. Specifically, the side of the clamping plate 60 is arranged with wave stripes to improve the friction effect. With this arrangement, when the first conveyor plate 2 drives the product to be transported to the specified position, the flip plate 56 is driven to rotate ninety degrees by the flip motor 55, and the two fixed plates 58 and the two clamping plates 60 are driven to move toward each other synchronously by two electric telescopic rods 57 to clamp the product, and then the flip plate 56 is rotated one hundred and eighty degrees, and the T-shaped slider 59 slides in the T-shaped slide groove under the action of gravity, so that the product enters the circular groove to realize the flipping function.

[0063] Specifically, two drop channels are provided on the top of the machine body 1. After the tablets are fully inspected, the tablets can be taken out by the clamping robot arm 64, and are dropped into the two drop channels respectively according to the inspection results. The clamping robot arm 64 is a prior art and is controlled by a PLC controller, and its specific working principle is not described in detail.

[0064] The working principle and use process of the present invention are as follows: when in use, the product is put into the cleaning box 10 through the feed hopper 26, and the feed motor 20 is started to drive the feed shaft 18 to rotate. When the feed shaft 18 rotates, the large sprocket 21, the small sprocket 22 and the transmission chain 23 can drive the circular shaft 14 and the two plum blossom extrusion wheels 15 to rotate synchronously. When the two plum blossom extrusion wheels 15 rotate, the two extrusion balls 16 are continuously squeezed, so that the two extrusion lifting blocks 11 are reciprocated and lifted, driving the inclined screen plate 12 to realize the vibration function. When the inclined screen plate 12 vibrates, the powder adhered to the surface of the product and the fine particles of other medicines can be shaken off into the collection drawer 25 through the vibration effect for collection. This arrangement can prevent the powder or fine particles from adhering to the surface of the product during the subsequent visual inspection process, thereby preventing the product from interfering with the inspection process.

[0065] After the product is cleaned by vibration, it enters the feed barrel 17 under the action of the two guide plates 13. Through the rotation of the feed shaft 18 and multiple silicone rods 19, the product can be driven to slowly move to the position of the discharge pipe 27. When a product slides into the square groove through the discharge pipe 27 and the slideway 28, the sensor 29 senses that the product is being transported and transmits an electrical signal to the feed motor 20, causing it to stop working until the first feed disc 2 and the second feed disc 3 rotate synchronously to a specified angle, and the feed motor 20 resumes operation and repeats the above feeding process. Furthermore, each silicone rod 19 is distributed on a spiral line coaxial with the feed shaft 18.

[0066] When the product enters the square groove, the driving motor 5 drives the driving shaft 4 to rotate, and then drives the driving shaft 6 to rotate synchronously in the opposite direction under the action of the two transmission gears 7. Under the meshing action of the two first sprockets 8 and the first chain 9, the other driving shaft 4 is driven to rotate synchronously, so that the first input plate 2 and the second input plate 3 rotate synchronously in the opposite direction by a certain angle. When the first feed tray 2 is rotating, the moving motor 32 drives the bidirectional screw rod 31 to rotate, so that the two sliders 33, the two square rods 34, and the two rectangular slide plates 30 move toward each other synchronously. When the rectangular slide plate 30 moves, it drives the two sliders 35 and the rectangular alignment plate 36 to move synchronously, and the product is pushed to the middle position through the two rectangular alignment plates 36. When the two rectangular alignment plates 36 are in contact with the product, they remain stationary through the extrusion effect. At this time, the rectangular slide plate 30 continues to move. Under the connection of the two connecting rods 41, the two L-shaped alignment plates 40 located in the same rectangular hole move toward each other synchronously, pushing the product to the axial position until the multiple sensors 42 are in contact with the product to realize the product alignment function. Then the multiple sensors 42 transmit electrical signals to the moving motor 32 to make it rotate in the opposite direction, driving each component to realize the reset function. When the product rotates to the bottom of the front visual detection component 61 along with the first feed tray 2, the front visual detection component 61 detects the front of the product.

[0067] After the product has passed the front detection, the first feed tray 2 drives it to continue rotating. When it moves to the specified position, the flip motor 55 drives the flip plate 56 to rotate ninety degrees, so that the bottom ends of the two fixed plates 58 fit with the inner wall of the bottom of the square groove, and then the two fixed plates 58 and the two clamping plates 60 are driven by the two electric telescopic rods 57 to move synchronously towards each other to clamp the product. Then, the flip motor 55 drives the flip plate 56 to rotate one hundred and eighty degrees. Under the action of gravity, the T-shaped slider 59 extends to the T-shaped slide groove to slide, so that the product enters the circular groove, and the clamping plate 60 is driven to reset by the electric telescopic rod 57 to contact the clamped product and place it horizontally on the top of the rotating plate 44 to realize the product flipping function.

[0068] When the product is placed on the top of the rotating plate 44, under normal conditions, the telescopic shaft 49 drives the extrusion plate 51 to contact the rotating shaft 43 under the elastic action of the compression spring 50, and squeezes the rotating shaft 43, so that it remains in a fixed state, preventing the rotating plate 44 from driving the product to rotate when the peripheral visual inspection component 45 inspects the peripheral side of the product. When the second feed tray 3 rotates, it can drive the rotating plate 44, the rotating shaft 43, and the telescopic shaft 49 to rotate synchronously. When the extrusion shaft 53 set on the telescopic shaft 49 contacts the arc-shaped rack 47, the arc-shaped rack 47 is used to inspect the peripheral side of the product. The arc surface of 7 is set to extrude the extrusion shaft 53, so that the telescopic shaft 49 slides into the telescopic sleeve 48, thereby contacting the limit of the rotating shaft 43. At this time, through the meshing action of the gear 46 and the arc-shaped rack 47, the rotating shaft 43 is driven to rotate seventy-two degrees, thereby driving the rotating plate 44 and the product to rotate seventy-two degrees synchronously, realizing the comprehensive detection function of the product side, and when the product is rotated to the specified position, the back side of the product can be visually inspected through the back side visual inspection component 62, thereby realizing the comprehensive detection function and improving the accuracy of the detection result.

[0069] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A multi-product measurement function method, characterized in that: The method comprises the following steps: S1. Place the product into a testing device and clean the surface of the product through the testing device to remove particles adhering to the surface of the product; S2. After the surface cleaning of the product is completed, the product is transported in sequence through the detection device, and a visual inspection operation is performed on the front during the transportation process; S3. After the first inspection is completed, the inspection device transports the product to the designated location, then turns the product over and performs a second visual inspection operation during the subsequent transportation process; S4. During the second visual inspection of the product, the inspection device rotates the product to conduct a comprehensive visual inspection of the product's circumference; The detection device adopted comprises a machine body (1), a first feed tray (2) and a second feed tray (3) are rotatably mounted on the top of the machine body (1), the first feed tray (2) and the second feed tray (3) being connected via a transmission mechanism, a cleaning mechanism is arranged on the top of the machine body (1), the cleaning mechanism comprises a cleaning box (10), a vibration cleaning component is arranged in the cleaning box (10), a material guide mechanism is arranged on the top of the machine body (1), the material guide mechanism comprises a feed barrel (17), a spiral feed component is arranged in the feed barrel (17), the spiral feed component is connected to the vibration cleaning component, a plurality of square grooves are provided on the top of the first feed tray (2), an alignment mechanism is arranged in each of the plurality of square grooves, the alignment mechanism is used to align the product, and a front visual detection component is arranged on the top of the machine body (1). The second conveyor plate (3) comprises a plurality of circular grooves, a plurality of circular grooves are provided on the top of the second conveyor plate (3), a plurality of mounting grooves are provided on the circumferential inner walls of the plurality of circular grooves, a circumferential visual detection component (45) is provided in each of the plurality of mounting grooves, a self-rotation component is provided in each of the plurality of circular grooves, a bottom end of the second conveyor plate (3) comprises an annular groove, a plurality of limiter components are provided on the circumferential outer walls of the annular groove, the plurality of limiter components are respectively matched with the plurality of self-rotation components, a reverse visual detection component (62) is provided on the top of the machine body (1), the reverse visual detection component (62) corresponds to the position of the plurality of circular grooves, a flipping mechanism is provided on the top of the machine body (1), the flipping mechanism is provided on the top of the machine body (1), and the flipping mechanism is used to flip the product; The alignment mechanism comprises two rectangular slides (30), and the two opposite sides of the square groove are provided with slide grooves. The two rectangular slides (30) are slidably installed in the two slide grooves through moving components. The sides of the two rectangular slides (30) are provided with alignment components. The alignment components comprise two slide bars (35). The sides of the rectangular slides (30) are provided with two circular holes. The two slide bars (35) are slidably connected with the two circular holes respectively. A circular plate (37) is fixedly installed at one end of the two slide bars (35) away from the square groove. The outer walls of the peripheral sides of the two slide bars (35) are sleeved with return springs (38). The other ends of the two slide bars (35) are jointly fixedly installed with a rectangular alignment plate (36). A rectangular hole is provided on the upper part of the rectangular alignment plate (36). A spring (37) is fixedly installed in the rectangular hole. A limit shaft (39) is provided, and two L-shaped alignment plates (40) are slidably mounted on the limit shaft (39). The sides of the two L-shaped alignment plates (40) are provided with sensing grooves, and sensors (42) are arranged in the two sensing grooves. An avoidance groove is provided on the side of the rectangular slide plate (30), and two connecting rods (41) are rotatably mounted in the avoidance groove, and the other ends of the two connecting rods (41) are respectively rotatably connected to the sides of the two L-shaped alignment plates (40); the two rectangular slide plates (30) are driven to move synchronously toward each other through a moving component, and when the product is limited by the two rectangular alignment plates (36), the rectangular slide plate (30) continues to move, and through the connection effect of the connecting rod (41), the two L-shaped alignment plates (40) located in the same rectangular hole are driven to move synchronously toward each other, thereby pushing the product to the axis position; The flip mechanism comprises a U-shaped block (54), the U-shaped block (54) being fixedly mounted on the top of the machine body (1), a flip motor (55) being fixedly mounted on the side of the U-shaped block (54), an output shaft of the flip motor (55) extending into the U-shaped block (54) and being fixedly sleeved with a flip plate (56), a lifting groove being provided on the side of the flip plate (56), electric telescopic rods (57) being provided on both sides of the flip plate (56), the movable ends of the two electric telescopic rods (57) both extending into the lifting groove and being fixedly mounted with fixed The two fixed plates (58) are provided with a T-shaped slide groove on one side adjacent to the two fixed plates (58), a T-shaped slider (59) is slidably installed in the two T-shaped slide grooves, and a clamping plate (60) is fixedly installed on one side adjacent to the two T-shaped sliders (59); the two fixed plates (58) and the two clamping plates (60) are driven by two electric telescopic rods (57) to move synchronously towards each other to clamp the product, and then the flip plate (56) is rotated 180 degrees, so that the T-shaped slider (59) slides in the T-shaped slide groove under the action of gravity, so that the product enters the circular groove.

2. The multi-product measurement function method according to claim 1, characterized in that: The transmission mechanism comprises two drive shafts (4). A transmission cavity is provided in the body (1). The bottom ends of the two drive shafts (4) are rotatably mounted on the bottom inner wall of the transmission cavity. The top ends of the two drive shafts (4) extend outside the body (1) and are fixedly connected to the bottom ends of the first input plate (2) and the second input plate (3), respectively. A motor slot is provided in the bottom inner wall of the transmission cavity. A drive motor (5) is fixedly mounted in the motor slot. The output shaft of the drive motor (5) is connected to the bottom end of one of the drive shafts (4). A transmission shaft (6) is rotatably mounted in the transmission cavity. A transmission gear (7) is coaxially mounted on one of the drive shafts (4). A first sprocket (8) is coaxially mounted on the other drive shaft (4). A transmission gear (7) and a first sprocket (8) are coaxially mounted on the transmission shaft (6). The two transmission gears (7) are meshed with each other. The two first sprockets (8) are connected via a first chain (9).

3. The multi-product measurement function method according to claim 1, characterized in that: The vibration cleaning assembly comprises an inclined screen plate (12), a conveying chamber and an extrusion chamber arranged up and down are provided in the cleaning box (10), vertical square holes are provided on opposite sides of the cleaning box (10), the two ends of the square holes are respectively located in the conveying chamber and the extrusion chamber, an extrusion lifting block (11) is slidably installed in the two square holes, the tops of the two extrusion lifting blocks (11) are both inclined, the bottom end of the inclined screen plate (12) is fixedly connected to the top inclined surfaces of the two extrusion lifting blocks (11), the bottoms of the two extrusion lifting blocks (11) extend into the extrusion chamber and are fixedly installed with an extrusion ball (16), a round shaft (14) is rotatably installed in the extrusion chamber, and the round shaft (14) 14) are fixed with plum blossom extrusion wheels (15) at both ends, the two plum blossom extrusion wheels (15) are respectively matched with the two extrusion balls (16), a through hole is opened on the side inner wall of the cleaning box (10), and is connected to the connecting pipe (24) through the through hole, two guide plates (13) are symmetrically fixedly installed on both sides of the top of the inclined screen plate (12), and the positions of the two guide plates (13) correspond to the positions of the connecting pipe (24), a collecting hole is opened on the side inner wall of the conveying cavity, and a collecting drawer (25) is slidably installed in the collecting hole, and the collecting drawer (25) is located on the lower side of the inclined screen plate (12), and a feeding hopper (26) is arranged on the top of the cleaning box (10).

4. The multi-product measurement function method according to claim 3, characterized in that: The spiral feeding assembly comprises a feeding shaft (18), the feeding shaft (18) being rotatably mounted on the inner wall of the feeding barrel (17), a plurality of silicone rods (19) being irregularly arranged on the peripheral outer wall of the feeding shaft (18), a feeding motor (20) being fixedly mounted on one end of the feeding barrel (17), an output shaft of the feeding motor (20) extending into the feeding barrel (17) and being fixedly connected to one end of the feeding shaft (18), a connecting hole being provided at the top of the feeding barrel (17) and the bottom of the extrusion chamber, and a large sprocket (20) being fixedly sleeved on the output shaft of the feeding motor (20). 1), a small sprocket (22) is fixedly sleeved on the circular shaft (14), a transmission chain (23) is meshedly mounted on the large sprocket (21) and the small sprocket (22), a feed hole is provided at the top of one end of the feed barrel (17), and a discharge hole is provided at the bottom of the other end, the other end of the connecting pipe (24) is fixedly mounted in the feed hole, a discharge pipe (27) is provided in the discharge hole, a slideway (28) is fixedly mounted on the top of the machine body (1), the slideway (28) corresponds to the position of the discharge pipe (27), and a sensor (29) is provided on the slideway (28).

5. The multi-product measurement function method according to claim 1, characterized in that: The moving assembly comprises a bidirectional screw (31), a moving cavity is provided in the first input plate (2), the bidirectional screw (31) is rotatably mounted in the moving cavity, a second motor slot is provided on the side of the moving cavity, a moving motor (32) is fixedly mounted in the second motor slot, an output shaft of the moving motor (32) is fixedly connected to one end of the bidirectional screw (31), a sliding hole is provided between the moving cavity and the two sliding slots, a sliding block (33) is slidably mounted in the two sliding holes, the two sliding blocks (33) are respectively threadedly mounted on the two ends of the bidirectional screw (31), a square rod (34) is fixedly mounted on one side of the two sliding blocks (33), and the sides of the two square rods (34) are respectively fixedly connected to the sides of the two rectangular slide plates (30).

6. The multi-product measurement function method according to claim 1, characterized in that: The self-rotating assembly comprises a rotating shaft (43), a rotating hole is formed on the inner wall of the bottom end of the circular groove, the rotating shaft (43) is rotatably mounted in the rotating hole, the top end of the rotating shaft (43) extends into the circular groove and is fixedly mounted with a rotating plate (44), the bottom end of the rotating shaft (43) extends into the annular groove and is fixedly sleeved with a gear (46), and five arc-shaped racks (47) are fixedly mounted on the top of the body (1), and the five arc-shaped racks (47) are all compatible with the gear (46).

7. The multi-product measurement function method according to claim 6, characterized in that: The limiting assembly comprises a telescopic sleeve (48), the telescopic sleeve (48) being fixedly mounted on the inner wall of the circumferential side of the annular groove, a telescopic shaft (49) being slidably mounted in the telescopic sleeve (48), a compression spring (50) being fixedly mounted on one end of the telescopic shaft (49), an extrusion plate (51) being fixedly mounted on the other end of the telescopic shaft (49), the extrusion plate (51) being matched with the rotating shaft (43), a square block (52) being fixedly sleeved on the outer wall of the circumferential side of the telescopic shaft (49), an extrusion shaft (53) being fixedly mounted on the bottom of the square block (52), and the extrusion shaft (53) being matched with the five arc-shaped racks (47).

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