A full-automatic capsule polishing all-in-one machine

Abstract

The present application relates to the technical field of capsule polishing, and specifically discloses a full-automatic capsule polishing integrated machine, which comprises a rack, a dust sweeping area horizontally arranged on the rack, the dust sweeping area comprising at least two switchable dust sweeping sections, a polishing area horizontally arranged on the rack and longitudinally arranged with the dust sweeping area, and a discharge port of the dust sweeping area being connected with a feeding port of the polishing area; the dust sweeping area comprising at least two switchable dust sweeping sections is arranged, so that the dust sweeping sections can work alternately, the polishing effect is prevented from being reduced due to dust accumulation in a single dust sweeping section, the switching mechanism can complete the switching of the dust sweeping sections in the state of continuous operation of the equipment, the switched-off dust sweeping sections can be cleaned and replaced individually without stopping the whole machine, and the effective operation time and production continuity of the equipment are greatly improved; when the online detection device detects that the polishing quality is substandard, the standby dust sweeping section is switched to automatically, so that the discharged capsules always maintain stable smoothness.

Description

Technical Field

[0001] This invention relates to the field of capsule polishing technology, and specifically proposes a fully automatic capsule polishing integrated machine. Background Technology

[0002] Capsule polishing machines are essential equipment in the pharmaceutical manufacturing process. They are primarily used for surface treatment of filled capsules, removing adhering drug powder and improving the smoothness and appearance of the capsules. They also remove empty shells, fragments, and other defective products. With increasingly stringent quality requirements in pharmaceutical production, higher demands are being placed on the polishing effect, operating efficiency, and degree of automation of capsule polishing equipment.

[0003] However, in existing capsule polishing machines, the dust concentration is highest at the feeding position. The brushes in this area undertake most of the dust removal work, which leads to a rapid accumulation of a large amount of dust on the brush surface, and even clumps and hardens. As the production time increases, the polishing ability of the brushes gradually decreases, and the smoothness of the output capsules is difficult to maintain. When the brushes are heavily dusty, secondary pollution problems will also occur, that is, the dust attached to the brush bristles will re-adhere to the surface of subsequent capsules, which seriously affects the polishing quality.

[0004] Furthermore, existing equipment generally lacks online detection capabilities for polishing effects. Operators typically rely on manual sampling, periodically collecting capsules from the discharge valve for visual inspection or tactile judgment. This detection method suffers from significant delays and subjectivity: on the one hand, by the time a problem is discovered, a large number of defective products may have already been produced; on the other hand, different operators have varying judgment standards, making it difficult to guarantee the stability and consistency of quality between batches.

[0005] Traditional capsule polishing machines typically use fixed installations for their brushes and screen cylinders. When cleaning or replacement is required, the entire machine must be stopped and the relevant parts disassembled before operation can be performed. This maintenance method reduces the effective operating time of the equipment, and frequent start-ups and shutdowns also affect production continuity.

[0006] Therefore, there is an urgent need for a fully automatic capsule polishing machine that can improve polishing efficiency and effectiveness. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a fully automatic capsule polishing machine to solve the issues mentioned in the background section.

[0008] To achieve the above objectives, the present invention employs the following technical solution: a fully automatic capsule polishing integrated machine, comprising a frame; a dust-sweeping zone, horizontally arranged on the frame, the dust-sweeping zone including at least two switchable dust-sweeping sections; a polishing zone, horizontally arranged on the frame and longitudinally arranged with the dust-sweeping zone, the discharge port of the dust-sweeping zone being connected to the inlet of the polishing zone; both the dust-sweeping zone and the polishing zone include a shell, the dust-sweeping zone being fixed to the shell of the polishing zone by bolts; a spiral section, disposed inside the shell, and the shell and the spiral section being able to rotate independently; and a feed valve, disposed at the beginning of the dust-sweeping zone and connected to a guide for controlling the capsule feeding path. The system includes: a material bin; a discharge valve located at the end of the polishing zone; an air extraction port located in the dust removal zone and / or polishing zone to adsorb dust generated during polishing; an online detection device located at the discharge valve to perform quality checks on the polished capsules at preset time intervals; and a switching mechanism connected to at least two dust removal sections in the dust removal zone. When the online detection device fails to meet the requirements, the switching mechanism switches the currently operating dust removal section to another dust removal section and cleans and replaces the switched-off dust removal section. One end of the polishing zone is designed to be openable and closable to allow for the insertion of a new spiral section to replace the spiral section in the polishing zone when needed.

[0009] Preferably, the dust removal area and the polishing area are arranged in a vertically stacked manner, with the dust removal area located on the upper layer and the polishing area located on the lower layer.

[0010] Preferably, the online inspection device includes an industrial camera aimed at the capsule flow at the discharge valve of the polishing area to acquire images of the capsule surface; an image processing unit electrically connected to the industrial camera, which has a built-in AI image recognition algorithm based on machine vision to identify the smoothness, scratches and powder residue on the capsule surface; and a controller electrically connected to the image processing unit and the switching mechanism to control the switching mechanism to switch the dust removal section when the inspection result is lower than a preset threshold.

[0011] Preferably, the outer shell is provided with sealing plates at both ends, and the spiral section is equipped with sealing bearings at both ends, with the sealing bearings embedded in the surface of the sealing plates.

[0012] Preferably, a motor is installed on the outer shell surface corresponding to the polishing area, and a gear is provided at the end of the motor and at one end of the spiral segment corresponding to the dust removal area, with the two gears meshing with each other.

[0013] Preferably, the switching mechanism includes a mounting bearing and a gear ring, the mounting bearing and gear ring being disposed on the outer shell surface corresponding to the polishing area, the mounting bearing being disposed on the frame, the surface of the frame being provided with a gear two for driving the gear ring to rotate, the surface of the frame being disposed on an arc-shaped frame, a movable frame being slidably mounted inside the arc-shaped frame, and the outer shell corresponding to the dust removal area being installed inside the movable frame.

[0014] Preferably, the surface of the frame is provided with a second motor, and the end of the second motor and the end of the corresponding spiral segment of the polishing area are both provided with a third gear, and the two third gears mesh with each other.

[0015] Preferably, the sealing plate corresponding to the polishing area is located on the inner side of the housing, and the sealing plate corresponding to the dust removal area is located at the end of the housing.

[0016] Preferably, a flexible pad adapted to the outer side of the spiral segment corresponding to the polishing zone is provided.

[0017] The above technical solution has the following advantages or beneficial effects: The present invention provides a fully automatic capsule polishing integrated machine. By setting up a dust-sweeping zone containing at least two switchable dust-sweeping sections, the dust-sweeping sections can work alternately, avoiding the decline in polishing effect caused by dust accumulation in a single dust-sweeping section. The switching mechanism can complete the switching of dust-sweeping sections while the equipment is running continuously. The switched-off dust-sweeping section can be cleaned and replaced individually without stopping the entire machine, which greatly improves the effective working time and production continuity of the equipment. When the online detection device detects that the polishing quality is not up to standard, it automatically switches to the backup dust-sweeping section to ensure that the output capsules always maintain a stable gloss. Attached Figure Description

[0018] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, which are not intentionally drawn to scale; the focus is on illustrating the spirit of the invention.

[0019] Figure 1 This is a three-dimensional structural diagram of a fully automatic capsule polishing integrated machine provided by the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram showing the location of the online detection device.

[0021] Figure 3 This is a three-dimensional structural diagram of a gear at position one.

[0022] Figure 4 This is a cross-sectional structural diagram of the dust removal area.

[0023] Figure 5 This is a three-dimensional structural diagram of a gear in three positions.

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the polishing area.

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the spiral segment inside the polishing zone.

[0026] Figure 8 This is a cross-sectional view of the polished area.

[0027] Figure 9 This is a flowchart of an online detection device.

[0028] In the diagram: 1. Frame; 2. Dust removal area; 3. Polishing area; 4. Outer shell; 5. Spiral section; 6. Online detection device; 7. Feed box; 8. Switching mechanism; 81. Mounting bearing; 82. Gear ring; 83. Gear II; 84. Arc frame; 85. Moving frame; 9. Air extraction port; 10. Discharge valve; 11. Feed valve; 12. Sealing plate; 13. Sealed bearing; 14. Motor I; 15. Gear I; 16. Motor II; 17. Gear III; 18. Flexible pad. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1-2 As shown, the present invention provides a fully automatic capsule polishing integrated machine, including a frame 1, a dust removal area 2, a polishing area 3, a feed valve 11, a discharge valve 10, an air extraction port 9, an online detection device 6, and a switching mechanism 8.

[0032] The frame 1, which serves as the supporting foundation for the entire equipment, is welded from stainless steel plates with a wall thickness of not less than 2.5mm. The bottom of the frame 1 is equipped with four height-adjustable shock-absorbing casters (not shown in the figure) to facilitate equipment movement and level adjustment. The adjustment range of the shock-absorbing casters is ±15mm, which can adapt to the installation requirements of different ground surfaces. The side of the frame 1 is equipped with a control cabinet mounting bracket (not shown in the figure) for installing the electrical control system.

[0033] The dust removal area 2 is horizontally arranged on the frame 1. The dust removal area 2 includes at least two switchable dust removal sections. In this embodiment, the dust removal area 2 includes a first dust removal section and a second dust removal section. The two dust removal sections are arranged side by side in the horizontal direction and work alternately through the switching mechanism 8. The length of each dust removal section is 600mm-800mm and the diameter is 150mm-200mm. The specific size is determined according to the production batch of the capsules.

[0034] The polishing zone 3 is horizontally arranged on the frame 1 and longitudinally arranged with the dust sweeping zone 2. Preferably, the dust sweeping zone 2 and the polishing zone 3 are arranged in a longitudinal stacked manner, with the dust sweeping zone 2 located on the upper layer and the polishing zone 3 located on the lower layer. This layout allows the capsule to fall naturally from the discharge port of the upper dust sweeping zone 2 into the inlet of the lower polishing zone 3 using gravity assistance. The discharge port of the dust sweeping zone 2 and the inlet of the polishing zone 3 are connected by a rigid connecting pipe. A sealing valve (not shown in the figure) is installed at the position of the connecting pipe to ensure smooth capsule conveying. The connecting pipe is fixed with screws for easy disassembly and replacement, and is closed during disassembly to ensure internal sealing.

[0035] Both the dust removal zone 2 and the polishing zone 3 include a housing 4 and a spiral segment 5. The spiral segment 5 is disposed inside the housing 4, and the housing 4 and the spiral segment 5 can rotate independently. The difference is that, in this embodiment, the housing 4 of the dust removal zone 2 does not rotate, while the housing 4 of the polishing zone 3 rotates.

[0036] like Figure 4 , Figure 7 and Figure 8 As shown, specifically, the outer shell 4 is a cylindrical structure made of colorless transparent acrylic material with a wall thickness of 2mm-3mm. Sealing plates 12 are provided at both ends of the outer shell 4, and sealing bearings 13 are installed at both ends of the spiral section 5. The sealing bearings 13 are deep groove ball bearings with dust covers and use food-grade grease. The sealing bearings 13 are embedded in the bearing housings (not shown in the figure) mounted on the surface of the sealing plates 12. An O-ring (not shown in the figure) is provided between the bearing housings and the sealing plates 12 to ensure good sealing performance, prevent dust leakage, and not affect the rotation of the spiral section 5.

[0037] In this embodiment, the difference lies in that the sealing plate 12 corresponding to the dust removal area 2 is attached to both ends of the outer shell 4, and the sealing plate 12 is fixedly connected by bolts. The periphery of the sealing plate 12 corresponding to the polishing area 3 is attached to the inner wall of the outer shell 4. A sealing ring is provided between the sealing plate 12 and the outer shell 4 to improve the sealing performance. When the dust removal area 2 is rotated and replaced, the old dust removal area 2 is completely disassembled without affecting the polishing efficiency of the capsule. When the polishing area 3 is replaced, the sealing ring is pulled out, then the spiral section 5 is directly pulled out, a new spiral section 5 is replaced, and then a new sealing ring is installed.

[0038] The spiral section 5 includes a central shaft and a spiral brush disposed on the outer surface of the central shaft. The central shaft is made of solid stainless steel bar. The spiral brush includes a bristle base and bristles embedded therein. The bristle base is a nylon strip spirally wound around the surface of the central shaft. The spiral helix angle of the spiral brush is 15°-30° and the pitch is 40mm-60mm, ensuring that the capsule obtains appropriate forward thrust during rotation. The outer side of the bristle base is a spiral flexible pad 18, which can perform appropriate cleaning of the inside of the outer shell 4 when the spiral section 5 is pulled out.

[0039] like Figure 1 As shown, the feed valve 11 is located at the beginning of the dust removal zone 2 and is connected to a guide box 7 for controlling the feeding path of the capsules. The guide box 7 is a closed box made of stainless steel welded together. Inside, there is a three-way reversing valve (not shown in the figure). The three-way reversing valve is driven by a pneumatic actuator with a response time of no more than 0.5 seconds. The valve core of the reversing valve is a rotary flap structure. The edge of the flap is embedded with a medical-grade silicone soft edge. The surface of the flap is coated with a Teflon anti-stick coating to prevent the capsules from being pinched or stuck during the switching process. A sealing door is installed at the inlet of the guide box 7 to ensure the sealing of the inside of the outer shell 4.

[0040] The discharge valve 10 is located at the end of the polishing zone 3 and is used to output the qualified capsules after polishing. It should be noted that when the discharge valve 10 is in the lowest position, the discharge valve 10 will automatically open under the action of gravity. When the discharge valve 10 is in the two sides, the discharge valve 10 will automatically close under the action of gravity to ensure good sealing.

[0041] The exhaust port 9 is located at the inlet of the polishing zone 3, which is the outlet of the dust removal zone 2. It is used to adsorb dust generated during the polishing process. In this embodiment, the exhaust port 9 is a circular interface connected to an exhaust pipe with a diameter of 50mm-80mm. Each exhaust pipe is equipped with an electric air volume regulating valve and a negative pressure sensor, and is connected to an independent negative pressure fan. The air volume of the negative pressure fan is 200-500m³ / h, and the air pressure is 2000-3000Pa.

[0042] like Figure 1 , Figure 6 and Figure 9 As shown, the online inspection device 6 is located at the discharge valve 10 and is used to perform quality inspection on the polished capsules at preset time intervals. The online inspection device 6 includes an industrial camera, an image processing unit, and a controller.

[0043] The industrial camera uses a global shutter CMOS industrial camera, equipped with a high-uniformity ring light source and a telecentric lens, which is aligned with the capsule flow at the discharge valve 10 of the polishing zone 3. The telecentric lens has a magnification of 0.5x-2x and a working distance of 100mm-150mm to ensure distortion-free imaging. The industrial camera can capture images of 60-120 capsules per second, achieving 100% online inspection.

[0044] The image processing unit is electrically connected to an industrial camera and has a built-in AI image recognition algorithm based on machine vision. After training with no less than 100,000 capsule image samples, it can accurately identify defects such as smoothness, scratches, pits, and powder residue on the capsule surface. Smoothness detection uses the uniformity of the capsule surface reflectivity as the evaluation index. Scratch detection uses an edge detection algorithm to identify linear defects with a length greater than 0.5 mm. Powder residue detection uses a grayscale threshold segmentation algorithm to identify powder lumps with an adhesion area greater than 0.2 mm². The detection accuracy can reach 0.1 mm² of defects, with an accuracy rate of ≥99.5%.

[0045] The controller uses a programmable logic controller (PLC) or an embedded industrial computer, which is electrically connected to the image processing unit and the switching mechanism 8, respectively. The controller has a quality judgment module. When the detection result is lower than the preset threshold, the controller controls the switching mechanism 8 to switch the dust removal section. In this embodiment, the preset smoothness threshold is 85%, and the preset defect number threshold is 3 consecutive capsules that are unqualified or 10 consecutive capsules with a failure rate of more than 20%. When either threshold is triggered, the controller determines that the current working dust removal section of the dust removal area 2 has serious dust accumulation and needs to be switched.

[0046] like Figure 2 , Figure 5 and Figure 6 As shown, the switching mechanism 8 controls the replacement of at least two ash-sweeping sections in the ash-sweeping zone 2 to achieve alternating operation of the ash-sweeping sections. The switching mechanism 8 includes a mounting bearing 81, a gear ring 82, a gear 83, an arc-shaped frame 84, and a moving frame 85.

[0047] The mounting bearing 81 and the gear ring 82 are located on the surface of the outer shell 4 corresponding to the polishing area 3. The mounting bearing 81 is a slewing bearing, with its inner ring fixed to the surface of the outer shell 4 of the polishing area 3 and its outer ring mounted on the frame 1. The gear ring 82 is an external gear slewing bearing gear ring, coaxially arranged with the mounting bearing 81, and fixed to the surface of the outer shell 4 of the polishing area 3. The surface of the frame 1 is provided with a gear 83 for driving the gear ring 82 to rotate. The gear 83 is driven by a servo motor. The surface of the frame 1 is provided with an arc frame 84, which is an arc-shaped guide rail structure with an arc radius that matches the switching trajectory. A movable frame 85 is slidably installed inside the arc frame 84. The movable frame 85 slides with the arc frame 84 through a linear guide rail or roller. The outer shell 4 corresponding to the dust removal area 2 is installed inside the movable frame 85 to realize the replacement of the dust removal area 2.

[0048] When the controller issues a switching command, the servo motor drives gear 83 to rotate, which in turn rotates the gear ring 82. The gear ring 82 then drives the moving frame 85 to slide along the arc-shaped frame 84, bringing the currently working dust-sweeping section to a horizontal position. The other dust-sweeping section then moves to the working position. The entire switching process takes no more than 3 seconds, achieving rapid switching of dust-sweeping sections. The switched-off dust-sweeping section can be removed by the operator for cleaning and replacement, and the entire process does not require stopping the machine.

[0049] Furthermore, the switching mechanism 8 is also equipped with a position sensor to detect whether the dust sweeping section has reached the accurate working position. When the position sensor detects that the position is in place, the controller sends a confirmation signal and the equipment resumes normal operation.

[0050] like Figures 1-3 and Figure 5 As shown, a motor 14 is installed on the outer shell surface corresponding to the polishing zone 3. The motor 14 is a servo motor. A gear 15 is provided at the end of the motor 14 and at one end of the spiral segment 5 corresponding to the dust sweeping zone 2. The two gears 15 mesh with each other. When the motor 14 is working, it drives the spiral segment 5 of the dust sweeping zone 2 to rotate through the gear 15, thereby realizing the conveying and polishing of the capsules in the dust sweeping zone 2. The speed of the spiral segment 5 in the dust sweeping zone 2 can be steplessly adjusted within the range of 0-600 rpm to adapt to the polishing requirements of different capsule varieties.

[0051] The surface of the frame 1 is equipped with a second motor 16, which is a servo motor. The end of the second motor 16 and the end of the corresponding spiral segment 5 in the polishing area 3 are both equipped with a third gear 17. The two third gears 17 mesh with each other. When the second motor 16 is working, it drives the spiral segment 5 of the polishing area 3 to rotate through the third gear 17, thereby achieving further polishing of the capsule in the polishing area 3. The speed of the spiral segment 5 in the polishing area 3 can be steplessly adjusted within the range of 0-500 rpm.

[0052] In conjunction with the above embodiments, the working process of the fully automatic capsule polishing integrated machine is as follows: The capsule enters the guide box 7. The three-way reversing valve in the guide box 7 guides the capsule to the current working dust sweeping section of the dust sweeping zone 2 according to the preset path. The outer shell 4 of the dust sweeping zone 2 remains stationary. The spiral section 5 rotates at a speed of 200-600 rpm under the drive of the motor 14, driving the capsule to move forward spirally in the dust sweeping zone 2. The capsule stays in the dust sweeping zone 2 for 10-30 seconds. During this period, the capsule repeatedly contacts and rubs against the brush bristles and the inner wall of the outer shell 4, and the dust attached to the surface of the capsule is brushed off. The exhaust port 9 operates at an air volume of 300-500 m³ / h, and sucks away the brushed dust in time through the small holes on the screen cylinder. After the capsule completes the initial dust removal in the dust sweeping zone 2, it is discharged from its outlet. At this time, about 80%-90% of the dust on the surface of the capsule has been removed.

[0053] After initial dust removal, the capsules enter the feed inlet of polishing zone 3 through the connecting pipe. The outer shell 4 of polishing zone 3 remains stationary, and the spiral section 5 rotates at a speed of 100-400 rpm under the drive of motor 16, driving the capsules to continue moving forward in polishing zone 3. The capsules stay in polishing zone 3 for 15-40 seconds. The spiral section 5 is directly polished by the brush bristles and discharged from the discharge valve 10. At this time, the surface smoothness of the capsules reaches the preset standard.

[0054] The capsules at the discharge valve 10 pass through the detection area of ​​the online detection device 6 in a single layer. The industrial camera continuously acquires capsule images at a frame rate of 60-120 frames per second under ring light illumination. At least three images from different angles are acquired for each capsule. The image processing unit performs real-time analysis on each capsule using an AI image recognition algorithm to determine its surface smoothness, presence of scratches, presence of powder residue, etc. When three consecutive capsules are detected to have a smoothness below the 85% threshold, or when the defect rate of ten consecutive capsules exceeds 20%, the controller determines that the current working dust-sweeping section of the dust-sweeping zone 2 has severe dust accumulation and reduced polishing ability.

[0055] The controller issues a switching command, the switching mechanism 8 starts, the servo motor drives gear 83 to rotate, which in turn drives gear ring 82 to rotate. Gear ring 82 drives moving frame 85 to slide along arc frame 84. Moving frame 85 drives the currently working dust sweeping section (such as the first dust sweeping section) to move along the arc trajectory and become horizontal. At the same time, another spare dust sweeping section (such as the second dust sweeping section) is moved to the working position. The entire switching process takes 2-3 seconds. The equipment does not stop during the switching process. The capsule is temporarily suspended from feeding by the vibrating feeder. Feeding is resumed immediately after the switching is completed. After the position sensor confirms that the dust sweeping section is in place, the controller issues a confirmation signal and the equipment resumes normal operation.

[0056] Close the sealing valve of the corresponding dust-sweeping section. The dust-sweeping section that has been switched off is taken out by the operator and transferred to the cleaning room for cleaning. During cleaning, the outer shell 4 of the dust-sweeping section is opened, the spiral section 5 is taken out, and it is rinsed with a high-pressure water gun or cleaned with an ultrasonic cleaner to remove the dust accumulated on the brush bristles and the inner wall of the outer shell 4. After cleaning, it is dried with compressed air or placed in a drying oven for drying and then put into use. Since the equipment does not need to be stopped during the switching process, production can continue, and the effective working time is increased by more than 30%.

[0057] When the spiral segment 5 of polishing zone 3 experiences bristle wear and reduced elasticity due to prolonged use, or when it is necessary to change the product type, the operator removes the sealing ring, pulls the old spiral segment 5 axially out of polishing zone 3, inserts the new spiral segment 5 axially into polishing zone 3, and reinstalls the sealing ring.

[0058] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a manner common to the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of the present invention, or equivalent embodiments with equivalent changes, do not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A fully automatic capsule polishing integrated machine, characterized in that, include: frame; The dust removal area is horizontally arranged on the frame and includes at least two switchable dust removal sections. The polishing zone is horizontally arranged on the frame and longitudinally arranged with the dust sweeping zone. The discharge port of the dust sweeping zone is connected to the inlet of the polishing zone. Both the dust removal area and the polishing area include: The outer casing, the dust removal area is fixed to the outer casing of the polishing area by bolts; The spiral segment is located inside the outer casing, and the outer casing and the spiral segment can rotate independently. The feed valve is located at the beginning of the dust removal area and is connected to a guide box for controlling the feeding path of the capsules; The discharge valve is located at the end of the polishing zone; An exhaust port is located in the dust removal area and / or polishing area to adsorb dust generated during the polishing process. An online inspection device is installed at the discharge valve to perform quality inspection on the polished capsules at preset time intervals. The switching mechanism is connected to at least two ash-sweeping sections in the ash-sweeping area. When the detection result of the online detection device fails to meet the standard, the switching mechanism switches the currently working ash-sweeping section to another ash-sweeping section. At the same time, the switched-off ash-sweeping section is cleaned and replaced. One end of the polishing area is set to an openable structure, which is used to insert a new spiral section to replace the spiral section of the polishing area when needed. The switching mechanism includes a mounting bearing and a gear ring. The mounting bearing and gear ring are located on the outer shell surface corresponding to the polishing area. The mounting bearing is located on the frame. The surface of the frame is provided with a gear for driving the gear ring to rotate. The surface of the frame is provided with an arc-shaped frame. A movable frame is slidably installed inside the arc-shaped frame. The outer shell corresponding to the dust removal area is installed inside the movable frame.

2. The fully automatic capsule polishing integrated machine according to claim 1, characterized in that: The dust removal area and the polishing area are arranged in a vertically stacked manner, with the dust removal area located on the upper layer and the polishing area located on the lower layer.

3. The fully automatic capsule polishing integrated machine according to claim 1, characterized in that, The online detection device includes: An industrial camera is aimed at the capsule flow at the discharge valve of the polishing area to acquire images of the capsule surface; The image processing unit is electrically connected to the industrial camera and has a built-in AI image recognition algorithm based on machine vision, which is used to identify the smoothness, scratches and powder residue on the surface of the capsule. The controller is electrically connected to the image processing unit and the switching mechanism respectively, and is used to control the switching mechanism to switch the dust sweeping section when the detection result is lower than a preset threshold.

4. The fully automatic capsule polishing integrated machine according to claim 1, characterized in that: The outer shell is provided with sealing plates at both ends, and the spiral section is equipped with sealing bearings at both ends, with the sealing bearings embedded in the surface of the sealing plates.

5. The fully automatic capsule polishing integrated machine according to claim 1, characterized in that: A motor is installed on the outer shell surface corresponding to the polishing area. A gear is provided at the end of the motor and at one end of the spiral segment corresponding to the dust removal area. The two gears mesh with each other.

6. The fully automatic capsule polishing integrated machine according to claim 1, characterized in that: The surface of the frame is provided with a second motor, and the end of the second motor and the end of the corresponding spiral segment of the polishing area are both provided with a third gear, and the two third gears mesh with each other.

7. The fully automatic capsule polishing integrated machine according to claim 4, characterized in that: The sealing plate corresponding to the polishing area is located inside the outer casing, and the sealing plate corresponding to the dust removal area is located at the end of the outer casing.

8. The fully automatic capsule polishing integrated machine according to claim 1, characterized in that: The outer side of the spiral segment corresponding to the polishing zone is provided with a flexible pad that is adapted to it.

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