Capsule detecting and sorting equipment

Abstract

The invention discloses capsule detecting and sorting equipment and relates to the technical field of capsule detecting and sorting, the capsule detecting and sorting equipment comprises a rack and a storage hopper, the storage hopper is fixedly connected to the top end of the rack, capsules are placed on the inner side of the storage hopper, a sorting mechanism is arranged at the discharging end of the storage hopper, and a detecting and weighing mechanism is arranged at the discharging end of the sorting mechanism; a detection weighing mechanism is arranged, the mechanism can realize stable rotation detection of a cylindrical capsule and a capsule with non-uniform gravity at two ends, and when the capsule with non-uniform gravity at two ends is detected, the problem of clamping stagnation or non-uniform rotation can be effectively avoided; meanwhile, the mechanism enables the capsule to continuously slide along a single inclined slide way, 360-degree panoramic appearance imaging detection and dynamic weighing are sequentially completed in the sliding process, the whole detection process can be completed without pausing the capsule, and the overall detection efficiency is remarkably improved.

Description

A capsule detection and sorting device Technical Field

[0001] This invention relates to the field of capsule detection and sorting technology, and in particular to a capsule detection and sorting device. Background Technology

[0002] According to Good Manufacturing Practice (GMP) requirements, solid dosage forms must be inspected for weight variation and appearance defects before packaging. The current mainstream solution uses a separate dynamic checkweigher connected in series with a vision inspection machine, which results in a long production line, large footprint, complex integration, and high cost. In addition, there is a risk of contamination and damage when materials are transferred between equipment.

[0003] Existing technology, such as the "Automatic Detection Device for Capsule Appearance and Weight" disclosed in Chinese Utility Model Patent No. CN215430326U, has the following composition and working process: 1) Sorting and feeding: Capsules fall from the storage hopper after being sorted by the sorting mechanism.

[0004] 2) Appearance Inspection Station: The capsule falls onto two parallel, actively rotating rollers. A complex propulsion device, consisting of a lead screw, moving block, pusher plate, and telescopic mechanism, pushes the capsule stepwise across the roller area. During this process, the rollers drive the capsule to rotate, and the image acquisition device above captures multi-angle images of the rotating capsule.

[0005] 3) Weight Inspection Station: After the capsules have completed the appearance inspection, they are pushed into the first slide and slid to the end. A separate actuating device moves the capsules onto the weighing platform for static weighing, and then moves them out again.

[0006] 4) Sorting and rejection: The capsules enter the second slide and are sorted by a movable plate rejection device according to the judgment result of the processing device.

[0007] While the above detection methods can complete the detection, they still have the following problems: 1) Limited efficiency: The step-by-step process of "push-pause to take pictures-push again-transfer to the weighing platform" has inherent time gaps, and the transfer action is time-consuming, which limits the equipment from reaching higher detection speeds; 2) Poor product applicability: The above methods can only rotate regular cylindrical capsules by rotating rollers. There are irregular capsules whose center of gravity is not in the middle, that is, part of the capsule is elliptical, and then a protrusion is set at one end of the capsule, which causes uneven weight distribution at both ends. When the capsule with uneven weight distribution falls onto the rotating roller, the center of gravity shifts, the capsule with uneven weight distribution tilts, and the contact pressure between the two ends and the rotating roller is different, which can easily cause jamming or uneven rolling. Therefore, a capsule detection and sorting device is proposed to address the above problems. Summary of the Invention

[0008] The purpose of this invention is to provide a capsule detection and sorting device to solve the problems in the background art.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a capsule detection and sorting device, comprising a frame and a storage hopper, wherein the storage hopper is fixedly connected to the top of the frame, capsules are placed inside the storage hopper, a sorting mechanism is provided at the discharge end of the storage hopper, a detection and weighing mechanism is provided at the discharge end of the sorting mechanism, a flip plate is provided at the discharge end of the detection and weighing mechanism, a base is rotatably connected to one end of the flip plate, an electric push rod is rotatably connected to one end of the base, and the electric push rod is rotatably connected to the flip plate, a control cabinet is fixedly connected to the inside of the frame, and a fixing plate is fixedly connected to the top of the frame; the sorting mechanism is used to realize the orderly discharge of capsules; the detection and weighing mechanism is used to realize dynamic detection and weighing of capsules without pausing when the capsules slide.

[0010] Preferably, the sorting mechanism includes a transition shell fixed to the discharge end of the storage hopper. A first motor is fixedly connected to one end of the transition shell, and a discharge roller is fixedly connected to the end of the main shaft of the first motor. The discharge roller is rotatably connected to the transition shell. A support frame is provided below the discharge end of the transition shell. A sorting rod is provided at the top of the support frame. A guide shell is provided below the sorting rod and is fixedly connected to the support frame.

[0011] Preferably, the surface of the feeding roller is provided with a storage groove, and the number of storage grooves is at least four, which are evenly distributed around the feeding roller.

[0012] Preferably, a guide plate is rotatably connected to the outer side of the feeding roller, and the guide plate is fixedly connected to the transition shell.

[0013] Preferably, the detection and weighing mechanism includes a fixed frame, a bracket is fixedly connected to the side of the fixed frame via a longitudinal beam, and the bracket is fixedly connected to the frame. A light source and a camera are fixedly connected to one end of the bracket. A second motor is fixedly connected to one end of the fixed frame. A rotating roller is fixedly connected to the end of the main shaft of the second motor, and the rotating roller is rotatably connected to the fixed frame. A guide rail is fixedly connected to the feeding end of the fixed frame. A weighing platform is provided below the guide rail. A weighing sensor is fixedly connected to one end of the weighing platform, and the weighing sensor is set on the sliding path of the capsule. A correction component is provided at one end of the fixed frame.

[0014] Preferably, the correction component includes a guide block, a guide post is slidably connected to the inner side of the guide block, a correction plate is fixedly connected to the top of the guide post, a rotating plate is rotatably connected to the inner side of one end of the correction plate, and a pressure sensor is embedded in the inner side of the rotating plate.

[0015] Preferably, a limiting ring is fixedly connected to the outer side of the guide post, a first spring is provided on the outer side of the guide post, and the two ends of the first spring are fixedly connected to the limiting ring and the guide block respectively. A roller is rotatably connected to one end of the guide post, and a limiting rod is provided at one end of the roller. The limiting rod is fixedly connected to the fixed frame through a diagonal tie beam.

[0016] Preferably, the correction assembly further includes a third motor fixedly connected to the fixed plate. The end of the main shaft of the third motor is fixedly connected to a gear. One end of the gear meshes with a rack, and the rack is fixedly connected to a guide block. A guide shell is slidably connected to the outside of the rack, and the guide shell is fixedly connected to the fixed frame.

[0017] Preferably, a guide plate is fixedly connected to the bottom end of the guide rail, and a feeding groove is provided at the contact point between the guide rail, the guide plate, and the weighing sensor.

[0018] Preferably, the top of the fixed frame is fixedly connected to an air blowing shell, and the side of the air blowing shell facing the capsule has an air blowing hole, and the air blowing direction of the air blowing hole is at an angle of 45°-60° with the axial direction of the rotating roller.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. A capsule detection and sorting device is provided with a sorting mechanism. The sorting mechanism has adjustable-spacing sorting rods on its inner side. By adjusting the relative position and gap between adjacent sorting rods, stable sorting and directional conveying of cylindrical capsules and capsules with uneven weight distribution at both ends can be achieved. For example, when conveying capsules with uneven weight distribution at both ends, the spacing and guide angle of the sorting rods can be adjusted so that the protrusions (or the offset ends) of such capsules fall into the subsequent detection and weighing mechanism in a uniform direction, thereby ensuring the consistency of posture and the accuracy of data in the detection and weighing process.

[0020] 2. A capsule inspection and sorting device, equipped with an inspection and weighing mechanism, which enables stable rotational inspection of cylindrical capsules and capsules with uneven weight distribution at both ends. When inspecting capsules with uneven weight distribution, it effectively avoids jamming or uneven rotation. Simultaneously, the mechanism allows the capsules to slide continuously along a single inclined slide, sequentially completing 360° panoramic appearance imaging inspection and dynamic weighing during the slide. The entire inspection process can be completed without pausing the capsules, significantly improving overall inspection efficiency. Attached Figure Description

[0021] 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.

[0022] Figure 1 is a schematic diagram of the overall structure of a capsule detection and sorting device according to the present invention.

[0023] Figure 2 is a schematic diagram of the internal installation structure of the transition shell of a capsule detection and sorting device according to the present invention.

[0024] Figure 3 is a cross-sectional view of the feeding roller of a capsule detection and sorting device according to the present invention.

[0025] Figure 4 is a schematic diagram of the installation structure of the guide plate of the capsule detection and sorting device of the present invention.

[0026] Figure 5 is a schematic diagram of the installation structure of the sorting rod of a capsule detection and sorting device according to the present invention.

[0027] Figure 6 is a schematic diagram of the sorting rod of a capsule detection and sorting device according to the present invention.

[0028] Figure 7 is a schematic diagram of the installation structure of the guide rail of a capsule detection and sorting device according to the present invention.

[0029] Figure 8 is a schematic diagram of the installation structure of the rotating roller of a capsule detection and sorting device according to the present invention.

[0030] Figure 9 is a schematic diagram of the rack installation structure of a capsule detection and sorting device according to the present invention.

[0031] Figure 10 is a schematic diagram of the installation structure of the second motor of a capsule detection and sorting device according to the present invention.

[0032] Figure 11 is a schematic diagram of the installation structure of the guide plate of a capsule detection and sorting device according to the present invention.

[0033] Figure 12 is a schematic diagram of the installation structure of the pressure sensor of a capsule detection and sorting device according to the present invention.

[0034] Figure 13 is a schematic diagram of the spring installation structure of a capsule detection and sorting device according to the present invention.

[0035] Figure 14 is a schematic diagram of the camera installation structure of a capsule detection and sorting device according to the present invention.

[0036] Figure 15 is a schematic diagram of the installation structure of the weighing sensor of a capsule detection and sorting device according to the present invention.

[0037] Figure 16 is a schematic diagram of the installation structure of the electric push rod of the capsule detection and sorting device of the present invention.

[0038] In the figure: 1. Sorting mechanism; 101. Transition shell; 102. Guide plate; 103. Feeding roller; 104. First motor; 105. Support frame; 106. Sorting rod; 107. Guide shell; 108. Storage tank.

[0039] 2. Weighing mechanism; 201. Fixed frame; 202. Second motor; 203. Rotary roller; 204. Air blowing shell; 205. Third motor; 206. Gear; 207. Rack; 208. Guide shell; 209. Guide block; 210. Guide column; 211. Correction plate; 212. Rotating plate; 213. Pressure sensor; 214. Roller; 215. Limiting ring; 216. First spring; 217. Limiting rod; 218. Guide rail; 219. Guide plate; 220. Weighing platform; 221. Weighing sensor; 222. Discharge chute; 223. Light source; 224. Camera; 3. Capsule; 4. Frame; 5. Storage hopper; 6. Support; 7. Fixed plate; 8. Control cabinet; 9. Base; 10. Flip plate; 11. Electric push rod. Detailed Implementation

[0040] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size. At the same time, all precision instruments such as lead screws, screws, gears, racks, etc. are provided with protective structures such as protective covers. As these are common knowledge, they are not described in detail in the specification. It is understandable for those skilled in the art that some common structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] To facilitate understanding of the technical means, creative features, objectives, and effects of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are merely for the convenience of describing the 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The invention will be further elaborated below with reference to specific embodiments. Examples

[0042] As shown in Figures 1-16, a capsule detection and sorting device includes a frame 4 and a storage hopper 5. The storage hopper 5 is fixedly connected to the top of the frame 4. Capsules 3 are placed inside the storage hopper 5. A sorting mechanism 1 is provided at the discharge end of the storage hopper 5. A detection and weighing mechanism 2 is provided at the discharge end of the sorting mechanism 1. A flip plate 10 is provided at the discharge end of the detection and weighing mechanism 2. A base 9 is rotatably connected to one end of the flip plate 10. An electric push rod 11 is rotatably connected to one end of the base 9. The electric push rod 11 is rotatably connected to the flip plate 10. The flip plate 10 is located at the discharge end of the guide rail 218 inside the detection and weighing mechanism 2. Its position is driven and controlled by the electric push rod 11. When the flip plate 10 is in the lowered state, its working surface is smoothly connected to the discharge surface of the guide rail 218 to form a continuous defective product conveying channel. When the flip plate 10 is in the raised state, its working surface is offset from the discharge surface of the guide rail 218 to form a qualified product diversion channel. Below the ends of the guide rail 218 and the flip plate 10, there are respectively a qualified product collection box and a defective product collection box, which are used to classify and receive the sorted capsules 3.

[0043] A control cabinet 8 is fixedly connected to the inner side of the frame 4. The built-in system of the control cabinet 8 is pre-configured with a special control program, which is used to uniformly schedule the operating rhythm of the sorting mechanism 1, calibrate the accuracy parameters of the detection and weighing mechanism 2, and regulate the extension and retraction stroke of the electric push rod 11. This program ensures that the three execution units maintain the continuity of action and the accuracy of operation during collaborative work through logical interlocking and timing coordination mechanisms, thereby ensuring the efficient and stable operation of the entire system. A fixing plate 7 is fixedly connected to the top of the frame 4. The sorting mechanism 1 is used to realize the orderly feeding of capsules 3. The detection and weighing mechanism 2 is used to realize the dynamic detection and weighing of capsules 3 without stopping when capsules 3 slide.

[0044] As a further improvement of the present invention, as shown in Figures 2-8, the sorting mechanism 1 includes a transition shell 101 fixed to the feeding end of the storage hopper 5. A first motor 104 is fixedly connected to one end of the transition shell 101, and a feeding roller 103 is fixedly connected to the end of the main shaft of the first motor 104. The feeding roller 103 is rotatably connected to the transition shell 101. A guide plate 102 is rotatably connected to the outer side of the feeding roller 103, and the guide plate 102 is fixedly connected to the transition shell 101. A storage groove 108 is formed on the surface of the feeding roller 103, and there are at least four storage grooves 108, which are evenly distributed around the feeding roller 103. The inner diameter of the storage groove 108 is larger than the outer diameter of the capsule 3. When the feeding roller 103 rotates, it is guided by the guide plate 102. Under this mechanism, only one capsule 3 can be placed in the storage tank 108 at a time, achieving orderly single-capsule feeding of capsule 3. A support frame 105 is provided below the feeding end of the transition shell 101, a sorting rod 106 is provided at the top of the support frame 105, and a guide shell 107 is provided below the sorting rod 106. The guide shell 107 is fixedly connected to the support frame 105. The side of the sorting rod 106 has a waist-shaped hole, and the surface of the support frame 105 has a row of threaded holes. The sorting rod 106 is fixed to the surface of the support frame 105 by bolts passing through the waist-shaped hole and the threaded hole. The sorting rods 106 are arranged in groups of two. The spacing between adjacent sorting rods 106 in the same group can be adjusted according to the different shapes and sizes of capsule 3 by means of the waist-shaped hole. The number and position of the storage tank 108 correspond one-to-one with the number of groups of sorting rods 106, ensuring that the capsule 3 falling from the storage tank 108 can accurately fall into the gap between adjacent sorting rods 106 in the same group. For different types of capsules 3, an appropriate arrangement can be adopted: when detecting cylindrical capsules 3, adjacent sorting rods 106 in the same group are arranged in a parallel state; when detecting capsules 3 with uneven weight at both ends, adjacent sorting rods 106 in the same group are arranged in a figure-eight shape, and the gap between the sorting rods 106 in the figure-eight arrangement gradually increases along the sliding direction of capsules 3.

[0045] The following describes the sorting and conveying process of this equipment in detail, taking the detection of capsules 3 with uneven weight distribution at both ends as an example: Capsules 3 with uneven weight distribution at both ends are placed into the storage hopper 5. The capsules 3 first slide along the storage hopper 5 into the transition shell 101. The first motor 104 drives the feeding roller 103 to rotate. As the feeding roller 103 rotates, the capsules 3 in the transition shell 101 enter the storage trough 108 of the feeding roller 103 one by one. When the feeding roller 103 drives the capsules 3 in the storage trough 108 to rotate past the guide plate 102, the capsules 3 fall precisely from directly below the feeding roller 103 between adjacent sorting rods 106 in the same group. Because one end of this type of capsule 3 has a protrusion, its center of gravity shifts towards the protrusion. As the capsule 3 slides downwards along the sorting rods 106, guided by the gradually increasing spacing between the sorting rods 106 along the sliding direction, the posture of the capsule 3 is gradually adjusted to a vertical state, and the protrusion always faces downwards. When capsule 3 slides to a distance between sorting rods 106 that is greater than its own size, capsule 3 falls into the guide shell 107 in a vertical position with the protrusion facing down. Then, under the guidance of the guide shell 107, it changes to a position with the protrusion facing forward and slides smoothly into the rollers 203 inside the detection and weighing mechanism 2 along the guide shell 107, completing the sorting and conveying process.

[0046] As a further improvement of the present invention, as shown in Figures 1 and 14, the detection and weighing mechanism 2 includes a fixed frame 201. A bracket 6 is fixedly connected to the side of the fixed frame 201 via a longitudinal beam, and the bracket 6 is fixedly connected to the frame 4. A light source 223 and a camera 224 are fixedly connected to one end of the bracket 6. The light source 223 provides a stable and uniform lighting environment for the imaging detection of the capsule 3, while the camera 224 captures the appearance image of the capsule 3 in real time during its sliding process. The arrangement angle of the light source 223 and the camera 224 is precisely calculated to ensure that the capsule 3 can be captured. The surface provides panoramic visual information; a second motor 202 is fixed to one end of the fixed frame 201, and a rotating roller 203 is fixedly connected to the end of the main shaft of the second motor 202. The rotating roller 203 is rotatably connected to the fixed frame 201. The rotating rollers 203 are arranged in groups of two adjacent ones, and the number of groups of rotating rollers 203 corresponds one-to-one with the number of groups of sorting rods 106; a second motor 202 is set next to each rotating roller 203, which drives it independently, and the two rotating rollers 203 in the same group keep rotating in the same direction; a guide rail 218 is fixedly connected to the unloading end of the fixed frame 201. A weighing platform 220 is provided below the guide rail 218. A weighing sensor 221 is fixedly connected to one end of the weighing platform 220 and is positioned on the sliding path of the capsule 3. A guide plate 219 is fixedly connected to the bottom end of the guide rail 218. A discharge groove 222 is provided at the contact point between the guide rail 218, the guide plate 219, and the weighing sensor 221. The top bearing surface of the guide plate 219 is flush with the top bearing surface of the weighing sensor 221, ensuring that the capsule 3 can move smoothly at the connection point between the guide plate 219 and the weighing sensor 221. The capsule slides smoothly without any jamming or bumping. A correction component is installed at one end of the fixed frame 201. The following detailed explanation of the weighing and sorting process of this equipment is based on the example of detecting a capsule 3 with uneven weight distribution at both ends: After the capsule 3 with uneven weight distribution slides onto the rotating roller 203, the second motor 202 drives the corresponding rotating roller 203 to rotate synchronously. Under the limiting and guiding action of the correction component, the axis of the capsule 3 remains parallel to the axis of the rotating roller 203, and then rotates around its own axis at a basically uniform angular velocity as the rotating roller 203 rotates, while simultaneously sliding downwards along the rotating roller 203. During this process, the camera 224 continuously captures images of the rotating capsule 3, and obtains 360° panoramic appearance information of the capsule 3 through image processing, achieving blind-spot-free appearance inspection. After completing the appearance inspection, capsule 3 continues to slide down along the guide rail 218. When it slides past the weighing sensor 221 of the weighing platform 220, the weighing platform 220 collects the weight signal of capsule 3 in real time and uses a dynamic weighing compensation algorithm to quickly and accurately calculate the weight of capsule 3.The control cabinet 8 receives and processes the appearance image data transmitted by the camera 224 and the weight data transmitted by the weighing platform 220 in real time. It compares the two types of data with the preset qualified thresholds. If either the appearance image data or the weight data is unqualified, the capsule 3 is marked as a defective product. The qualified capsule 3 continues to slide down the guide rail 218 into the qualified product collection box, while the unqualified capsule 3 is intercepted and guided by the fast-moving flip plate 10 and falls into the defective product collection box, thus completing the detection and sorting.

[0047] As a further improvement of the present invention, as shown in Figures 8, 9, 12, and 13, the correction assembly includes a guide block 209, a guide post 210 slidably connected to the inner side of the guide block 209, and a correction plate 211 fixedly connected to the top of the guide post 210. A gap is reserved between adjacent rollers 203 in the same group, allowing the correction plate 211 to pass through, thereby achieving attitude correction for the capsule 3 with uneven gravity at both ends. A rotating plate 212 is rotatably connected to the inner side of one end of the correction plate 211. A pressure sensor 213 is embedded on the inner side. As the capsule 3, with uneven weight distribution at both ends, slides onto the rotating roller 203 and moves downward with it, the protrusion of the capsule 3 gradually rises under the guidance of the correction plate 211. When the protrusion of the capsule 3 comes into contact with the pressure sensor 213, the axis of the capsule 3 is exactly parallel to the axis of the rotating roller 203. At this time, the pressure sensor 213 transmits the detected pressure signal to the control cabinet 8, and the control cabinet 8 then controls the third motor 205 to start synchronously. Meanwhile, the rotating plate 212 can rotate freely inside the correction plate 211, and this structural design will not interfere with the autonomous rotation of the capsule 3.

[0048] As a further improvement of the present invention, as shown in Figures 9, 12, and 13, a limiting ring 215 is fixedly connected to the outer side of the guide post 210, and a first spring 216 is provided on the outer side of the guide post 210. The two ends of the first spring 216 are fixedly connected to the limiting ring 215 and the guide block 209, respectively. A roller 214 is rotatably connected to one end of the guide post 210, and a limiting rod 217 is provided at one end of the roller 214. The limiting rod 217 is fixedly connected to the fixed frame 201 through a diagonal tie beam. The correction assembly also includes a fixed plate 7. A third motor 205 is fixedly connected, and a gear 206 is fixedly connected to the end of the main shaft of the third motor 205. One end of the gear 206 meshes with a rack 207, and the rack 207 is fixedly connected to a guide block 209. A guide shell 208 is slidably connected to the outside of the rack 207, and the guide shell 208 is fixedly connected to a fixed frame 201. The initial position of the correction plate 211 is set near the outlet of the guide shell 107, and the distance between the pressure sensor 213 and the outlet end of the guide shell 107 is greater than the length of the capsule 3 with uneven weight distribution at both ends. When the correction plate 211 is in the initial position, the first spring 216, through the cooperation of the limiting ring 215 and the guide post 210, drives the correction plate 211 to pass through the gap between adjacent rollers 203 in the same group to the working position. At this time, the roller 214 abuts against the limiting rod 217. When the protrusion of the capsule 3 with uneven weight at both ends comes into contact with the pressure sensor 213, the control cabinet 8 controls the third motor 205 to start synchronously. The third motor 205 drives the rack 207 to move downwards at an angle via the gear 206. The rack 207 then drives the correction plate 211 through the guide block 209 and the guide column 210, moving downwards synchronously with the capsule 3. This linkage structure ensures that the correction plate 211 always provides stable support to the protrusion of the capsule 3 during its rotation and downward movement, ensuring stable posture. After the capsule 3 with uneven weight at both ends completes the appearance inspection, the roller 214, guided and limited by the inclined part of the limit rod 217, drives the correction plate 211 to gradually move towards the guide block 209 through the guide column 210, so that the correction plate 211 disengages from the ends of the capsule 3 with uneven weight at both ends, ensuring that the capsule 3 with uneven weight at both ends can smoothly slide from the roller 203 onto the guide rail 218. After the capsule 3, which has uneven weight distribution at both ends, is transported, the third motor 205 rotates in the opposite direction, driving the correction plate 211 to reset to its initial position through the transmission structure, ready for the next inspection operation.

[0049] When inspecting the cylindrical capsule 3, there is no need to activate the correction assembly. Simply remove the correction plate 211 from the guide post 210 or move the roller 214 to the inclined position of the limit rod 217 to allow the correction plate 211 to move to a non-interfering position, ensuring that it will not affect the normal sliding of the cylindrical capsule 3 along the roller 203.

[0050] As a further improvement of the present invention, as shown in FIG8, an air blowing shell 204 is fixedly connected to the top of the fixed frame 201, and an air blowing hole is provided on the side of the air blowing shell 204 facing the capsule 3. The air blowing direction of the air blowing hole is at an acute angle of 45°-60° with the axial direction of the rotating roller 203. The air blowing shell 204 is connected to an external air source. The airflow blown out by the air blowing shell 204 can generate a boosting force on the capsule 3, assisting the capsule 3 to slide smoothly downward along the rotating roller 203.

[0051] The above are preferred embodiments of the present invention. The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from the scope of protection of the present invention. All such changes and modifications fall within the scope of protection of the present invention as defined by the appended claims and their equivalents.

Claims

1. A capsule detection and sorting device, comprising a frame (4) and a storage hopper (5), characterized in that: The top of the frame (4) is fixedly connected to a storage hopper (5), and a capsule (3) is placed inside the storage hopper (5). A sorting mechanism (1) is provided at the discharge end of the storage hopper (5). A detection and weighing mechanism (2) is provided at the discharge end of the sorting mechanism (1). A flip plate (10) is provided at the discharge end of the detection and weighing mechanism (2). A base (9) is rotatably connected to one end of the flip plate (10). An electric push rod (11) is rotatably connected to one end of the base (9). The electric push rod (11) is rotatably connected to the flip plate (10). A control cabinet (8) is fixedly connected to the inside of the frame (4). A fixing plate (7) is fixedly connected to the top of the frame (4). The sorting mechanism (1) is used to realize the orderly discharge of the capsule (3). The detection and weighing mechanism (2) is used to realize the dynamic detection and weighing of the capsule (3) without stopping when the capsule (3) slides.

2. The capsule detection and sorting device according to claim 1, characterized in that: The sorting mechanism (1) includes a transition shell (101) fixed to the feeding end of the storage hopper (5). A first motor (104) is fixedly connected to one end of the transition shell (101). A feeding roller (103) is fixedly connected to the end of the main shaft of the first motor (104). The feeding roller (103) is rotatably connected to the transition shell (101). A support frame (105) is provided below the feeding end of the transition shell (101). A sorting rod (106) is provided at the top of the support frame (105). A guide shell (107) is provided below the sorting rod (106). The guide shell (107) is fixedly connected to the support frame (105).

3. The capsule detection and sorting device according to claim 2, characterized in that: The surface of the feeding roller (103) is provided with a storage groove (108), and the number of storage grooves (108) is at least four, and they are evenly distributed around the feeding roller (103).

4. The capsule detection and sorting device according to claim 2, characterized in that: The outer side of the feed roller (103) is rotatably connected to a guide plate (102), and the guide plate (102) is fixedly connected to the transition shell (101).

5. The capsule detection and sorting device according to claim 1, characterized in that: The detection and weighing mechanism (2) includes a fixed frame (201). A bracket (6) is fixedly connected to the side of the fixed frame (201) via a longitudinal beam. The bracket (6) is fixedly connected to the frame (4). A light source (223) and a camera (224) are fixedly connected to one end of the bracket (6). A second motor (202) is fixed to one end of the fixed frame (201). A rotating roller (203) is fixedly connected to the end of the main shaft of the second motor (202). The rotating roller (203) is rotatably connected to the fixed frame (201). A guide rail (218) is fixedly connected to the feeding end of the fixed frame (201). A weighing platform (220) is provided below the guide rail (218). A weighing sensor (221) is fixedly connected to one end of the weighing platform (220). The weighing sensor (221) is located on the sliding path of the capsule (3). A correction component is provided to one end of the fixed frame (201).

6. The capsule detection and sorting device according to claim 5, characterized in that: The correction assembly includes a guide block (209), a guide post (210) is slidably connected to the inner side of the guide block (209), a correction plate (211) is fixedly connected to the top of the guide post (210), a rotating plate (212) is rotatably connected to the inner side of one end of the correction plate (211), and a pressure sensor (213) is embedded in the inner side of the rotating plate (212).

7. The capsule detection and sorting device according to claim 6, characterized in that: A limiting ring (215) is fixedly connected to the outer side of the guide post (210). A first spring (216) is provided on the outer side of the guide post (210), and the two ends of the first spring (216) are fixedly connected to the limiting ring (215) and the guide block (209) respectively. A roller (214) is rotatably connected to one end of the guide post (210). A limiting rod (217) is provided at one end of the roller (214), and the limiting rod (217) is fixedly connected to the fixed frame (201) through a diagonal tie beam.

8. The capsule detection and sorting device according to claim 5, characterized in that: The correction assembly also includes a third motor (205) fixedly connected to the fixed plate (7). The end of the main shaft of the third motor (205) is fixedly connected to a gear (206). One end of the gear (206) is meshed with a rack (207), and the rack (207) is fixedly connected to the guide block (209). The outer side of the rack (207) is slidably connected to a guide shell (208), and the guide shell (208) is fixedly connected to the fixed frame (201).

9. The capsule detection and sorting device according to claim 5, characterized in that: The bottom end of the guide rail (218) is fixedly connected to the guide plate (219), and a feeding groove (222) is provided at the contact point between the guide rail (218), the guide plate (219), and the weighing sensor (221).

10. A capsule detection and sorting device according to claim 5, characterized in that: The top of the fixed frame (201) is fixedly connected to an air blowing shell (204), and the side of the air blowing shell (204) facing the capsule (3) has an air blowing hole, and the air blowing direction of the air blowing hole is at an angle of 45°-60° with the axial direction of the rotating roller (203).

Images