Laser detection device for traditional Chinese medicine preparation production line

Abstract

The invention belongs to the technical field of optical detection, and particularly relates to a laser detection device for a traditional Chinese medicine preparation production line, which comprises a mounting part, a detection part, a noise reduction mechanism, a turbulent flow mechanism and a protection mechanism, the mounting part comprises a mounting frame, a bearing frame and a driving assembly; the driving assembly is used for controlling the bearing frame to lift along the outer wall of the mounting frame; the detection part comprises an X-ray detector and an infrared detector; the X-ray detector and the infrared detector are fixedly mounted on the bottom surface of the bearing frame; the noise reduction mechanism comprises a mounting box and an exhaust fan, the mounting box is fixedly mounted on the outer wall of the bearing frame, and the exhaust fan is fixedly mounted on the inner wall of the mounting box; the protection mechanism comprises a filtering layer and a supporting frame, the two sides of the supporting frame are fixedly connected with the inner wall of the mounting box, the filtering layer is fixedly mounted on the upper end face of the supporting frame, and the filtering layer and the supporting frame are both made of elastic materials; through cooperation of the structure, the detection precision and efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical detection, in particular to a laser detection device for a traditional Chinese medicine preparation production line. Background Art

[0002] In the production of traditional Chinese medicine preparations, heat-sealed bags, due to their excellent sealing properties and convenience, have become a key storage method for ensuring pharmaceutical quality. The quality of the heat-sealed area directly affects the safety of the medicine during storage and transportation. Therefore, post-heat-sealing inspection has become a core part of production quality control. Currently, the industry primarily uses X-ray inspection and infrared thermal imaging inspection technologies. When using X-ray detection, it is based on the principle of imaging based on the differences in X-ray absorption by materials. In order to achieve product identification, anti-counterfeiting and other functions, the surface of heat-sealed bags is usually printed with colored text or patterns. When these logos coincide with the heat-sealed area, the density and material composition of the local area will change, resulting in uneven characteristics of the material in the heat-sealed area. This not only interferes with the penetration and attenuation of X-rays, reducing the imaging contrast, but may also cover up defects such as poor heat sealing and bubbles, resulting in misjudgment or missed detection. Infrared thermal imaging testing determines quality by capturing differences in thermal radiation at heat-sealed locations. However, in the production process of traditional Chinese medicine preparations, fluctuations in the power of the heating equipment and unstable heat-sealing time during the heat-sealing process can lead to uneven initial temperature distribution at the heat-sealed locations. During transportation and inspection, changes in ambient temperature, frictional heat generated by mechanical vibration, and heat accumulation caused by stacking heat-sealed bags can all disrupt the temperature field at the heat-sealed locations, making it difficult for infrared thermal imaging to accurately reflect the true quality status of the heat-sealed locations.

[0003] To this end, the present invention provides a laser detection device for a traditional Chinese medicine preparation production line. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the laser detection device for a traditional Chinese medicine preparation production line of the present invention comprises a mounting portion, a detection portion, a noise reduction mechanism, a flow disturbance mechanism and a protection mechanism; The mounting portion includes a mounting frame, a supporting frame, and a driving assembly, wherein the driving assembly is used to control the supporting frame to rise and fall along the outer wall of the mounting frame; The detection part includes an X-ray detector and an infrared detector, both of which are fixedly mounted on the bottom surface of the carrier; The noise reduction mechanism includes an installation box and an exhaust fan, wherein the installation box is fixedly mounted on the outer wall of the carrier frame, and the exhaust fan is fixedly mounted on the inner wall of the installation box; The protective mechanism includes a filter layer and a support frame. Both sides of the support frame are fixedly connected to the inner wall of the installation box. The filter layer is fixedly installed on the upper end surface of the support frame. Both the filter layer and the support frame are made of elastic material. The spoiler mechanism includes a guide plate and a pressing roller slidably arranged inside the installation box. The pressing roller is used to press the filter layer. The guide plate is fixedly installed on the bottom surface of the installation box and is tilted toward one side of the infrared detector.

[0006] Preferably, a storage box is fixedly mounted on the bottom surface of the support frame, the inner cavity of the storage box is used to store coolant, a control plate is fixedly mounted on the outer wall of the storage box, the control plate has a cold end and a hot end, the cold end of the control plate is located inside the storage box, a heat exchange plate is fixedly mounted on the outer wall of the storage box, and the heat exchange plate is located directly below the exhaust fan.

[0007] Preferably, a control motor is fixedly mounted on the inner wall of the mounting box, a mounting bar is fixedly mounted on the inner wall of the mounting box, a transmission screw is rotatably mounted inside the mounting bar, and the output shaft of the control motor is fixedly connected to the transmission screw; The outer wall of the transmission screw is equipped with a connecting plate through internal and external threads. The upper end of the connecting plate is slidably provided with a support frame. The side wall of the top pressure roller is fixedly connected to the inner wall of the support frame.

[0008] Preferably, a connecting rod is fixedly mounted on the bottom surface of the support frame, one end of the connecting rod extends to the inner wall of the connecting plate and is elastically connected to the connecting plate; The side wall of the mounting strip is fixedly mounted with a supporting tooth plate, the bottom surface of the supporting frame is fixedly mounted with a guide frame, the supporting tooth plate passes through the guide frame, and the inner wall of the guide frame slides in contact with the outer wall of the supporting tooth plate, and the inner wall of the guide frame is fixedly mounted with a top pressure block engaged with the supporting tooth plate.

[0009] Preferably, an elastic plate is fixedly installed on the inner wall of the pressure roller, a knocking ball is fixedly installed on the other end of the elastic plate, a transmission shaft is rotatably installed on the inner wall of the pressure roller, a transmission disk is sleeved on the outer wall of the transmission shaft, a transmission block for pressing the knocking ball is fixedly installed on the outer wall of the transmission disk, and the outer wall of the transmission block is inclined.

[0010] Preferably, a transmission roller is rotatably installed at the bottom of the support frame, a guide rail is fixedly installed on the outer wall of the mounting bar, the radial outer wall of the transmission roller fits with the outer wall of the guide rail, a sliding frame is elastically installed on the outer wall of the support frame, a tensioning roller is rotatably installed on the outer wall of the sliding frame, a transmission wheel is fixedly installed on the axial end of the transmission shaft, and the transmission roller, transmission wheel and tensioning roller are connected through a transmission member.

[0011] Preferably, a transmission plate is fixedly mounted on the radial outer wall of the transmission shaft, the transmission plate is made of elastic material, and a plurality of transmission plates are evenly arranged in a ring shape along the axis of the transmission shaft; The radial inner wall of the transmission disc is fixedly mounted with limiting ratchets, and a plurality of limiting ratchets are evenly arranged in a ring shape along the axis of the transmission disc.

[0012] Preferably, a guide plate is fixedly installed on the inner wall of the installation box, the side walls of the guide plate are inclined, both sides of the filter layer are fixed to the guide plate by pins, and support rods are fixedly installed on the side walls of the support frame; The side wall of the installation box is provided with a discharge port flush with the guide plate, and the outer wall of the installation box is detachably provided with a storage box, the inner cavity of the storage box is communicated with the inner cavity of the installation box through the discharge port.

[0013] Preferably, a storage frame is rotatably mounted on the outer wall of the support frame, a moisture absorption port is opened on the outer wall of the storage frame, and a closed cylinder is fixedly mounted on the inner wall of the storage frame, and the inner cavity of the closed cylinder is used to store the desiccant.

[0014] Preferably, a connecting wheel is fixedly installed on the axial end of the storage frame, the radial outer wall of the connecting wheel is in contact with the radial outer wall of the transmission wheel, and an arc plate is fixedly installed on the inner wall of the closed cylinder, and multiple arc plates are evenly arranged in a ring shape along the axis of the closed cylinder.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention solves the problem of missed detection and misjudgment caused by a single detection method by setting up a collaborative working mode of infrared detection and X-ray detection. It uses infrared to quickly screen out abnormal temperature areas to narrow the detection range, and combines it with X-rays to accurately detect internal structural defects, forming a double verification. When the exhaust fan blows air, it can increase the air flow speed on the surface of the heat-sealed area, thereby achieving cooling. On the one hand, by accelerating cooling, the heat-sealed structure is stabilized, image artifacts caused by thermal deformation and bubble movement are reduced, and the defect shape is fixed to facilitate positioning and measurement. On the other hand, it can make the material density distribution uniform, enhance the contrast between defects such as foreign matter and cold seals and the substrate, and improve image recognition. It not only reduces interference factors during infrared detection, but also improves the accuracy of X-ray detection. At the same time, the exhaust fan blowing serves as a link between infrared detection and X-ray detection, maintaining a smooth transition.

[0016] 2. This invention ensures the stability of the inspection process through multiple intelligent designs, including flow disturbance, cleaning, cooling, and moisture absorption. Driven by a control motor and a drive screw, the pressure roller slides back and forth, pressing the filter layer to raise and tighten different parts of it. Combined with the beveled guidance of the guide plate and the switching of strong airflow at right angles, this can address the uneven surface of the heat-sealed bag, destroy the local thermal boundary layer, accelerate heat mixing between different areas, and adapt to complex surface morphologies. Coolant cools the heat exchange plate, and the exhaust fan accelerates the transition of the heat-sealed area from the temperature required for infrared detection to the normal temperature required for X-ray detection, reducing image artifacts caused by thermal deformation and bubble migration. The silica gel desiccant in the storage frame is continuously rotated by the drive shaft, absorbing moisture from the airflow and preventing condensation from interfering with detection. The curved plate further improves moisture absorption uniformity, ensuring the stability of the inspection environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 This is a schematic diagram of the installation of the installation box of the present invention; Figure 3 It is a structural schematic diagram of the guide plate in the present invention; Figure 4 It is a schematic diagram of the internal structure of the installation box of the present invention; Figure 5 This is a schematic diagram of the installation of the support rod in the present invention; Figure 6 This is a schematic diagram of the installation of the exhaust fan in the present invention; Figure 7 This is a schematic diagram of the installation of the connecting plate in the present invention; Figure 8 This is a schematic diagram of the internal structure of the top pressure roller in the present invention; Figure 9 It is a structural schematic diagram of the transmission plate in the present invention; Figure 10 It is a schematic diagram of the installation of the curved plate in the present invention.

[0019] Figure: 1. Mounting frame; 2. Drive assembly; 3. Carrying frame; 4. X-ray detector; 5. Filter layer; 6. Mounting box; 7. Infrared detector; 8. Guide plate; 9. Heat exchange plate; 10. Storage box; 11. Control plate; 12. Storage box; 13. Support tooth plate; 14. Guide plate; 15. Guide rail; 16. Exhaust fan; 17. Support rod; 18. Support frame; 19. Storage frame; 20. Top pressure roller; 21. Control motor 22. Drive screw; 23. Connecting plate; 24. Mounting strip; 25. Guide frame; 26. Pressure block; 27. Support frame; 28. Drive wheel; 29. ​​Connecting rod; 30. Tensioning roller; 31. Drive roller; 32. Sliding frame; 33. Drive block; 34. Tapping ball; 35. Elastic plate; 36. Drive shaft; 37. Drive plate; 38. Limit ratchet; 39. Drive disc; 40. Closing cylinder; 41. Arc plate; 42. Connecting wheel. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1 to 10 As shown, the laser detection device for a traditional Chinese medicine preparation production line according to the present invention includes a mounting portion, a detection portion, a noise reduction mechanism, a flow disturbance mechanism and a protection mechanism.

[0022] The mounting part includes a mounting frame 1, a supporting frame 3 and a driving assembly 2. The driving assembly 2 is used to control the supporting frame 3 to rise and fall along the outer wall of the mounting frame 1, wherein the supporting frame 3 is slidingly connected to the mounting frame 1, and a threaded rod is provided in the mounting frame 1. The threaded rod and the supporting frame 3 are connected by internal and external threads. The driving assembly 2 is a servo motor, and its output shaft is connected to the threaded rod. The driving assembly 2 drives the supporting frame 3 to rise and fall by controlling the rotation of the threaded rod.

[0023] In specific use, the overall equipment has two usage methods. First, the mounting frame 1 is directly connected to the workbench by screws, which is suitable for random inspection of samples after heat sealing. Second, the mounting frame 1 is installed on the heat-sealed bag (heat-sealed bag storing medicine after heat sealing) conveyor belt bracket so that the supporting frame 3 is located above the conveyor belt, which is suitable for general inspection on the assembly line.

[0024] The detection part includes an X-ray detector 4 and an infrared detector 7. Both the X-ray detector 4 and the infrared detector 7 are fixedly mounted on the bottom surface of the carrier 3. When the heat-sealed bag is located below the carrier 3, the X-ray detector 4 uses X-rays to penetrate the heat-sealed bag. Different materials absorb X-rays at different levels to form an image. If there are defects such as bubbles, unfused parts or uneven thickness in the heat-sealed area, abnormal light transmittance (such as light spots, shadows or line interruptions) will appear in the image. The infrared detector 7 captures the surface temperature distribution of the heat-sealed bag through an infrared sensor and analyzes the effect of the heat-sealing process. The temperature distribution in a good heat-sealed area is uniform. If there are problems such as insufficient heating or uneven pressure, temperature mutations (such as low-temperature spots or faults) will occur in the defective area.

[0025] There is a directional arrow engraved on the carrier 3. During the assembly line inspection, the heat-sealed bag first passes through the infrared detector 7 and then passes under the X-ray detector 4. The setting of the directional arrow is to correspond to the conveying direction of the conveyor belt.

[0026] Infrared detection and X-rays work together to make up for the shortcomings of using X-rays alone. Infrared detection is not affected by text or patterns on the surface of heat-sealed bags. It can initially screen the heat seal quality through temperature distribution and narrow the X-ray detection range. The thermal conductivity characteristics it reflects complement the internal structure of X-ray detection, enabling dual verification of defects. In addition, the phased mode of rapid infrared screening followed by precise X-ray inspection can reduce invalid detection, lower the misjudgment rate, and improve detection efficiency and reliability.

[0027] The noise reduction mechanism includes an installation box 6 and an exhaust fan 16. The installation box 6 is fixedly installed on the outer wall of the carrier frame 3, and the exhaust fan 16 is fixedly installed on the inner wall of the installation box 6. The exhaust fan 16 blows air toward the heat-sealed bag, thereby generating forced convection at the heat-sealed part, balancing the surface temperature of the heat-sealed part, eliminating the local temperature difference remaining from the heat-sealing process, and offsetting the impact of ambient temperature fluctuations during transportation. After the temperature field is uniform, temperature anomalies caused by real defects in the heat-sealed part (such as false sealing and leaking sealing) are more easily highlighted, thereby reducing interference factors during infrared thermal imaging detection and improving the progress of infrared detection.

[0028] In addition, when the exhaust fan 16 blows, the air flow rate on the surface of the heat-sealed part can be increased, thereby achieving cooling. On the one hand, the heat-sealed structure is stabilized by accelerating cooling, image artifacts caused by thermal deformation and bubble movement are reduced, and the defect shape is fixed for easy positioning and measurement. On the other hand, the material density can be evenly distributed, and the contrast between defects such as foreign matter and cold seals and the substrate is enhanced, thereby improving image recognition. This not only reduces interference factors during infrared detection, but also improves the accuracy of X-ray detection. At the same time, the exhaust fan 16 serves as a link between infrared detection and X-ray detection (during infrared detection, the heat-sealed part needs to have temperature, and during X-ray inspection, the heat-sealed part needs to be as stable as possible, that is, the temperature is as close to room temperature as possible), maintaining a smooth transition.

[0029] The protective mechanism includes a filter layer 5 and a support frame 18. The two sides of the support frame 18 are fixedly connected to the inner wall of the installation box 6. The filter layer 5 is fixedly installed on the upper end surface of the support frame 18, and the filter layer 5 and the support frame 18 are both made of elastic materials. The support frame 18 provides support for the filter layer 5. In this embodiment, the filter layer 5 is made of a filter non-woven fabric material.

[0030] When the exhaust fan 16 blows, external air is sucked in from the top of the installation box 6 and then discharged from the bottom of the installation box 6. The filter layer 5 is provided to filter dust and other impurities in the air to prevent dust from blowing toward the heat sealing part and interfering with the effect of infrared detection and X-ray detection after attachment.

[0031] The flow-disturbing mechanism includes a guide plate 8 and a pressing roller 20 slidably arranged inside the installation box 6. The pressing roller 20 is used to press the filter layer 5. The radial outer wall of the pressing roller 20 keeps in contact with the surface of the filter layer 5 in real time, so that the middle part of the filter layer 5 bulges, and the pressing roller 20 can slide back and forth along the inner wall of the installation box 6 to change the raised position of the filter layer 5, thereby tensioning different parts of the filter layer 5 to achieve the effect of flow disturbance.

[0032] After the heat-sealed part is melted, a clear boundary is generated, which leads to an uneven surface of the heat-sealed bag. The turbulent flow is blown towards the heat-sealed bag, which destroys the local thermal boundary layer compared to the uniform blowing towards the heat-sealed bag. The heat in different areas of the heat-sealed part is mixed more quickly to adapt to the uneven surface.

[0033] The guide plate 8 is fixedly mounted on the bottom surface of the installation box 6 and is tilted toward one side of the infrared detector 7 . The cross section of the guide plate 8 is a right triangle and is located directly below the exhaust fan 16 .

[0034] When the exhaust fan 16 blows air downward, the airflow that impacts the inclined surface of the guide plate 8 is guided by the inclined surface of the guide plate 8 to blow toward the heat-sealed bag, thereby balancing the temperature field of the heat-sealed part. At the same time, the kinetic energy of the airflow can be consumed by the inclined surface of the guide plate 8, preventing the heat-sealed part from being excessively cooled by blowing during infrared detection.

[0035] When the heat-sealed bag that has passed the infrared detection moves to the bottom of the right-angled side of the guide plate 8, the exhaust fan 16 blows air vertically downward. At this time, relative to the heat-sealed bag being located on the inclined side of the guide plate 8, the blowing intensity is increased, thereby improving the cooling efficiency of the heat-sealed part, thereby accelerating the heat-sealed part to a normal temperature state to facilitate X-ray inspection.

[0036] A storage box 10 is fixedly mounted on the bottom surface of the carrier 3 . The inner cavity of the storage box 10 is used to store coolant. A control plate 11 is fixedly mounted on the outer wall of the storage box 10 . The control plate 11 is a common semiconductor refrigeration plate.

[0037] The control plate 11 has a cold end and a hot end. The cold end of the control plate 11 is located inside the storage box 10. A heat exchange plate 9 is fixedly installed on the outer wall of the storage box 10. The heat exchange plate 9 is located directly below the exhaust fan 16. The heat exchange plate 9 is a common copper plate. The heat exchange plate 9 is cooled by the control plate 11, so that when the exhaust fan 16 blows air, the temperature on the right-angle side of the guide plate 8 is reduced, and the inclined surface of the guide plate 8 maintains room temperature for blowing, thereby increasing the speed at which the heat-sealed part returns to room temperature after passing infrared detection.

[0038] As a preferred embodiment of the present invention, a control motor 21 is fixedly installed on the inner wall of the installation box 6, a mounting bar 24 is fixedly installed on the inner wall of the installation box 6, a transmission screw 22 is rotatably installed inside the mounting bar 24, and the transmission screw 22 is connected to the mounting bar 24 through a bearing.

[0039] The output shaft of the control motor 21 is fixedly connected to the transmission screw 22 . The control motor 21 is a common stepping motor and is used to control the rotation of the transmission screw 22 .

[0040] The outer wall of the transmission screw 22 is equipped with a connecting plate 23 through internal and external threads. A support frame 27 is slidably provided on the upper end of the connecting plate 23. The side wall of the top pressure roller 20 is fixedly connected to the inner wall of the support frame 27. The transmission screw 22 is rotated to control the connecting plate 23 to slide along the axis of the transmission screw 22, driving the support frame 27 and the top pressure roller 20 to move, thereby pressing different positions of the filter layer 5, disturbing the airflow blowing to the heat sealing part, improving detection and reducing interference factors during detection.

[0041] A connecting rod 29 is fixedly installed on the bottom surface of the support frame 27, one end of the connecting rod 29 extends to the inner wall of the connecting plate 23 and is elastically connected to the connecting plate 23. A spring is provided on the outside of the connecting rod 29, and the other end of the spring is connected to the inner wall of the connecting plate 23, thereby realizing an elastic connection between the support frame 27 and the connecting plate 23.

[0042] The side wall of the mounting strip 24 is fixedly mounted with a supporting tooth plate 13, and the bottom surface of the supporting frame 27 is fixedly mounted with a guide frame 25. The supporting tooth plate 13 passes through the guide frame 25, and the inner wall of the guide frame 25 slides in contact with the outer wall of the supporting tooth plate 13. When the transmission screw 22 rotates, the sliding cooperation between the guide frame 25 and the supporting tooth plate 13 prevents the connecting plate 23 from deflecting, thereby maintaining the sliding stability of the top pressure roller 20.

[0043] The inner wall of the guide frame 25 is fixedly mounted with a pressure block 26 that engages with the supporting tooth plate 13. By setting the pressure block 26, when the pressure roller 20 slides in the horizontal direction, the support frame 27 is driven to rise and fall and slide back and forth in the vertical direction. At this time, the tension of the filter layer 5 is adjusted back and forth, thereby refining the turbulence effect.

[0044] As a preferred embodiment of the present invention, an elastic plate 35 is fixedly installed on the inner wall of the top pressure roller 20, and a tapping ball 34 is fixedly installed on the other end of the elastic plate 35. The elastic plate 35 is moved and then the tapping ball 34 is released. The tapping ball 34 taps the inner wall of the top pressure roller 20, and the mechanical vibration generated by the tapping is transmitted to the raised filter layer 5, peeling off the dust attached to the surface of the filter layer 5, thereby realizing self-cleaning of the filter layer 5. At the same time, the middle part of the filter layer 5 is raised, and when vibration is generated, it helps the dust move toward the low point.

[0045] A transmission shaft 36 is rotatably mounted on the inner wall of the pressing roller 20 , and a transmission disc 39 is sleeved on the outer wall of the transmission shaft 36 , wherein the transmission shaft 36 is used to drive the transmission disc 39 to rotate.

[0046] A transmission block 33 for pressing the knocking ball 34 is fixedly installed on the outer wall of the transmission disk 39. The outer wall of the transmission block 33 is set at an angle. When the transmission disk 39 rotates, it drives the transmission block 33 to rotate. The transmission block 33 lifts the knocking ball 34 until the two are separated. The knocking ball 34 knocks on the inner wall of the pressure roller 20, generating mechanical vibration.

[0047] The transmission roller 31 is rotatably installed at the bottom of the support frame 27, and the guide bar 15 is fixedly installed on the outer wall of the mounting bar 24. The radial outer wall of the transmission roller 31 fits with the outer wall of the guide bar 15. When the support frame 27 slides, the guide bar 15 controls the rotation of the transmission roller 31 through friction.

[0048] A sliding frame 32 is elastically mounted on the outer wall of the support frame 27 , and a tensioning roller 30 is rotatably mounted on the outer wall of the sliding frame 32 , and the sliding frame 32 provides support for the tensioning roller 30 .

[0049] The axial end of the transmission shaft 36 is fixedly mounted with a transmission wheel 28. The transmission roller 31, the transmission wheel 28 and the tensioning roller 30 are connected by a transmission member. The transmission member is a common belt. When the transmission roller 31 rotates, the transmission wheel 28 and the transmission shaft 36 are driven to rotate, which is used to control the rotation of the transmission block 33.

[0050] The sliding frame 32 is elastically connected to the support frame 27 in order to keep the transmission member taut when the support frame 27 is raised or lowered, thereby maintaining the transmission stability of the transmission roller 31 and the transmission wheel 28 .

[0051] A transmission plate 37 is fixedly mounted on the radial outer wall of the transmission shaft 36 . The transmission plate 37 is made of elastic material. Multiple transmission plates 37 are evenly arranged in a ring shape along the axis of the transmission shaft 36 . When the transmission shaft 36 rotates, the transmission plates 37 are driven to rotate.

[0052] A limiting ratchet 38 is fixedly installed on the radial inner wall of the transmission disk 39. A plurality of limiting ratchets 38 are evenly arranged in a ring shape along the axis of the transmission disk 39. Through the cooperation of the transmission plate 37 and the limiting ratchets 38, one-way transmission of the transmission shaft 36 and the transmission disk 39 is realized.

[0053] Since the support frame 27 slides back and forth in the horizontal direction, the rotation direction of the transmission roller 31 will change with the sliding direction of the support frame 27. In order to prevent the transmission block 33 and the tapping ball 34 from being stuck and unable to tap, at least two transmission plates 39 are provided. The locking directions of the internal transmission plates 37 and the limiting ratchet 38 are opposite. Therefore, when the rotation direction of the transmission shaft 36 changes, at least one group of transmission plates 37 is ensured to be engaged with the limiting ratchet 38, thereby driving the transmission plate 39 to rotate, thereby achieving tapping of the inner wall of the pressure roller 20.

[0054] As a preferred embodiment of the present invention, a guide plate 14 is fixedly installed on the inner wall of the installation box 6, and the side walls of the guide plate 14 are inclined. The two sides of the filter layer 5 are fixed to the guide plate 14 by pins. The connection between the filter layer 5 and the inner wall of the installation box 6 is achieved by setting the guide plate 14. The guide plate 14 is inclined to facilitate the sliding of dust shaken off the filter layer 5.

[0055] The side wall of the support frame 18 is fixedly installed with a support rod 17, which is a hard rod. When the pressure roller 20 presses the filter layer 5, the width of the filter layer 5 is kept unchanged as much as possible, reducing the risk of a gap between the side of the filter layer 5 and the inner wall of the installation box 6.

[0056] The side wall of the installation box 6 is provided with a discharge port flush with the guide plate 14, and the outer wall of the installation box 6 is detachably mounted with a storage box 12, the inner cavity of the storage box 12 is connected with the inner cavity of the installation box 6 through the discharge port, and the storage box 12 is used to collect dust shaken off by the filter layer 5, so that it is easy to clean after the storage box 12 is removed.

[0057] A storage frame 19 is rotatably mounted on the outer wall of the support frame 27. A moisture absorption port is provided on the outer wall of the storage frame 19. A closed cylinder 40 is fixedly mounted on the inner wall of the storage frame 19. The closed cylinder 40 is a paper cylinder. The inner cavity of the closed cylinder 40 is used to store a desiccant. In this embodiment, the desiccant is selected from common silica gel desiccant particles. When the exhaust fan 16 exhausts air, the desiccant absorbs moisture in the airflow to prevent the moisture from condensing into water droplets after contacting the low-temperature heat exchange plate 9 and dripping onto the heat-sealed part of the heat-sealed bag, thereby reducing the risk of water droplets interfering with detection.

[0058] A connecting wheel 42 is fixedly mounted on the axial end of the storage frame 19, and the radial outer wall of the connecting wheel 42 is in contact with the radial outer wall of the transmission wheel 28. Transmission wheels 28 are provided at both axial ends of the transmission shaft 36, one transmission wheel 28 is provided with a transmission part on the outside, and the other is used to be in contact with the connecting wheel 42, so that when the transmission shaft 36 rotates, the connecting wheel 42 and the storage frame 19 are driven to rotate, and the desiccant inside is turned over by gravity to evenly absorb moisture and maintain moisture absorption efficiency.

[0059] In order to improve the effect of turning over the desiccant when the storage frame 19 rotates, an arc-shaped plate 41 is fixedly installed on the inner wall of the closed cylinder 40. A plurality of arc-shaped plates 41 are evenly arranged in a ring shape along the axis of the closed cylinder 40. When the storage frame 19 rotates, the desiccant is retained by the recessed space inside the arc-shaped plate 41 and then released, thereby further improving the effect of turning over the desiccant.

[0060] Working principle: According to the usage scenario, the mounting frame 1 is fixed to the workbench (sample sampling) or the heat-sealed bag conveyor belt bracket (general inspection of the assembly line) by screws, the driving component 2 drives the threaded rod to rotate, and the supporting frame 3 is controlled to rise and fall along the outer wall of the mounting frame 1 through the threaded cooperation. During the general inspection of the assembly line, the heat-sealed bag passes through the infrared detector 7 and the X-ray detector 4 in the direction of the arrow on the bottom of the supporting frame 3: the infrared detector 7 preliminarily screens the heat sealing quality through temperature distribution, and the X-ray detector 4 uses X-ray imaging to precisely inspect internal defects. The exhaust fan 16 is installed in the mounting box 6 on the outer wall of the supporting frame 3. The external air is sucked in from the top of the mounting box 6, and the dust is filtered by the filter layer 5 and then discharged from the bottom The dust is discharged and blown toward the heat-sealed bag. The transmission screw 22 is driven by the control motor 21, which drives the connecting plate 23, the support frame 27 and the top pressure roller 20 to slide back and forth. The top pressure roller 20 presses the filter layer 5 to make its middle part bulge and change the bulge position to achieve turbulence; the airflow of the exhaust fan 16 is guided by the inclined surface of the guide plate 8 to blow toward the heat-sealed bag. When the heat-sealed bag moves to the bottom of the right-angled side of the guide plate 8, the airflow is converted into vertical strong wind to accelerate cooling. The transmission disk 39 in the top pressure roller 20 rotates, and the transmission block 33 lifts the knocking ball 34 and then releases it, causing it to knock on the roller wall to generate vibration, peeling off the dust on the surface of the filter layer 5. The dust slides to the discharge port through the inclined guide plate 14 and is collected by the storage box 12. During the cooling and moisture absorption process, the control plate 11 cools the coolant in the storage box 10 through the cold end, cools the heat exchange plate 9 below, and cooperates with the exhaust fan 16 to reduce the temperature of the heat sealing part; the transmission shaft 36 rotates to drive the sealing cylinder 40 in the storage frame 19 to rotate, and the curved plate 41 flips the desiccant to absorb moisture from the airflow to prevent condensed water from interfering with detection.

[0061] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser detection device for a traditional Chinese medicine preparation production line, characterized in that: It includes an installation part, a detection part, a noise reduction mechanism, a spoiler mechanism and a protection mechanism; The mounting portion comprises a mounting frame (1), a supporting frame (3) and a driving assembly (2), wherein the driving assembly (2) is used to control the supporting frame (3) to rise and fall along the outer wall of the mounting frame (1); The detection unit includes an X-ray detector (4) and an infrared detector (7), and the X-ray detector (4) and the infrared detector (7) are both fixedly mounted on the bottom surface of the carrier (3); The noise reduction mechanism comprises a mounting box (6) and an exhaust fan (16), wherein the mounting box (6) is fixedly mounted on the outer wall of the carrier frame (3), and the exhaust fan (16) is fixedly mounted on the inner wall of the mounting box (6); The protective mechanism comprises a filter layer (5) and a support frame (18), both sides of the support frame (18) are fixedly connected to the inner wall of the installation box (6), the filter layer (5) is fixedly mounted on the upper end surface of the support frame (18), and the filter layer (5) and the support frame (18) are both made of elastic material; The flow-disturbing mechanism comprises a guide plate (8) and a pressing roller (20) slidably arranged inside the installation box (6), the pressing roller (20) being used to press the filter layer (5), and the guide plate (8) being fixedly mounted on the bottom surface of the installation box (6) and tilted toward one side of the infrared detector (7).

2. A laser detection device for a traditional Chinese medicine preparation production line according to claim 1, characterized in that: A storage box (10) is fixedly mounted on the bottom surface of the carrier (3), the inner cavity of the storage box (10) is used to store coolant, a control plate (11) is fixedly mounted on the outer wall of the storage box (10), the control plate (11) has a cold end and a hot end, the cold end of the control plate (11) is located inside the storage box (10), and a heat exchange plate (9) is fixedly mounted on the outer wall of the storage box (10), the heat exchange plate (9) is located directly below the exhaust fan (16).

3. The laser detection device for a traditional Chinese medicine preparation production line according to claim 2, characterized in that: A control motor (21) is fixedly mounted on the inner wall of the mounting box (6), a mounting bar (24) is fixedly mounted on the inner wall of the mounting box (6), a transmission screw (22) is rotatably mounted inside the mounting bar (24), and an output shaft of the control motor (21) is fixedly connected to the transmission screw (22); A connecting plate (23) is mounted on the outer wall of the transmission screw (22) through internal and external threads. A support frame (27) is slidably provided on the upper end of the connecting plate (23). The side wall of the top pressure roller (20) is fixedly connected to the inner wall of the support frame (27).

4. The laser detection device for a traditional Chinese medicine preparation production line according to claim 3, characterized in that: A connecting rod (29) is fixedly mounted on the bottom surface of the support frame (27), one end of the connecting rod (29) extends to the inner wall of the connecting plate (23) and is elastically connected to the connecting plate (23); A supporting tooth plate (13) is fixedly mounted on the side wall of the mounting bar (24), a guide frame (25) is fixedly mounted on the bottom surface of the supporting frame (27), the supporting tooth plate (13) passes through the guide frame (25), and the inner wall of the guide frame (25) is slidably fitted with the outer wall of the supporting tooth plate (13), and a top pressure block (26) engaged with the supporting tooth plate (13) is fixedly mounted on the inner wall of the guide frame (25).

5. The laser detection device for a traditional Chinese medicine preparation production line according to claim 4, characterized in that: An elastic plate (35) is fixedly mounted on the inner wall of the pressing roller (20), a knocking ball (34) is fixedly mounted on the other end of the elastic plate (35), a transmission shaft (36) is rotatably mounted on the inner wall of the pressing roller (20), a transmission disc (39) is sleeved on the outer wall of the transmission shaft (36), a transmission block (33) for pressing the knocking ball (34) is fixedly mounted on the outer wall of the transmission disc (39), and the outer wall of the transmission block (33) is inclined.

6. The laser detection device for a traditional Chinese medicine preparation production line according to claim 5, characterized in that: A transmission roller (31) is rotatably mounted on the bottom of the support frame (27), a guide rail (15) is fixedly mounted on the outer wall of the mounting bar (24), a radial outer wall of the transmission roller (31) is in contact with the outer wall of the guide rail (15), a sliding frame (32) is elastically mounted on the outer wall of the support frame (27), a tensioning roller (30) is rotatably mounted on the outer wall of the sliding frame (32), a transmission wheel (28) is fixedly mounted on the axial end of the transmission shaft (36), and the transmission roller (31), the transmission wheel (28) and the tensioning roller (30) are connected via a transmission member.

7. The laser detection device for a traditional Chinese medicine preparation production line according to claim 6, characterized in that: A transmission plate (37) is fixedly mounted on the radial outer wall of the transmission shaft (36), the transmission plate (37) being made of elastic material, and a plurality of the transmission plates (37) are evenly arranged in a ring shape along the axis of the transmission shaft (36); A limiting ratchet (38) is fixedly mounted on the radial inner wall of the transmission disc (39), and a plurality of the limiting ratchet teeth (38) are evenly arranged in a ring shape along the axis of the transmission disc (39).

8. The laser detection device for a traditional Chinese medicine preparation production line according to claim 1, characterized in that: A guide plate (14) is fixedly mounted on the inner wall of the installation box (6), the side wall of the guide plate (14) is tilted, both sides of the filter layer (5) are fixed to the guide plate (14) by pins, and a support rod (17) is fixedly mounted on the side wall of the support frame (18); The side wall of the installation box (6) is provided with a discharge port flush with the guide plate (14), and a storage box (12) is detachably mounted on the outer wall of the installation box (6), wherein the inner cavity of the storage box (12) is communicated with the inner cavity of the installation box (6) through the discharge port.

9. The laser detection device for a traditional Chinese medicine preparation production line according to claim 7, characterized in that: A storage frame (19) is rotatably mounted on the outer wall of the support frame (27), a moisture absorption port is provided on the outer wall of the storage frame (19), and a closed cylinder (40) is fixedly mounted on the inner wall of the storage frame (19), the inner cavity of the closed cylinder (40) being used for storing desiccant.

10. The laser detection device for a traditional Chinese medicine preparation production line according to claim 9, characterized in that: A connecting wheel (42) is fixedly mounted on the axial end of the storage frame (19), and the radial outer wall of the connecting wheel (42) is in contact with the radial outer wall of the transmission wheel (28). An arc-shaped plate (41) is fixedly mounted on the inner wall of the closed cylinder (40), and a plurality of arc-shaped plates (41) are evenly arranged in an annular shape along the axis of the closed cylinder (40).

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