A device for detecting the amount of bottle cap and blowing medicine pills

Abstract

The utility model provides a kind of detects bottle cap loading amount rejection and blowing medicine pill device, including rack, bottle conveying mechanism and medicine bottle detection mechanism are set on rack, medicine bottle detection mechanism includes: mounting bracket, fixedly installed on the upper side of rack;Metal sensor first pair of sensors and second pair of sensors are all set on mounting bracket, first pair of sensors and second pair of sensors;Pusher is configured as can push medicine bottle out of bottle conveying mechanism.The utility model carries out integrity detection to metal aluminum foil respectively using metal sensor, and first pair of sensors and second pair of sensors respectively detect "high cover" and medicine loading amount.Synchronization is completed on one device by the collaborative layout of metal sensor and two pairs of pair of sensors, and the detection of three key indicators of aluminum foil, bottle cap tightening degree and medicine loading amount is completed, compact structure, high detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical production equipment technology, and in particular to a device for detecting the amount of contents in bottle caps and for blowing pills. Background Technology

[0002] In automated packaging production lines in the pharmaceutical industry, the three core critical points for ensuring product quality, safety, and stability are the proper screw-on sealing of the bottle cap, the integrity of the internal sealing components (such as aluminum foil), and the amount of medicine contained within. Improperly screwed caps (such as "high caps" due to incomplete tightening or insufficient tightening torque) will compromise the bottle's basic seal, leading to moisture absorption and oxidation of the medicine. The absence of crucial sealing aluminum foil within the cap will directly expose the medicine to the external environment, causing serious quality and safety risks. Furthermore, insufficient medicine content (empty or half-empty bottles) directly harms consumer interests and violates pharmaceutical production regulations. Therefore, 100% reliable testing and rejection of these critical indicators at the end of the production line is essential.

[0003] Traditional detection methods often rely on mechanical levers or single photoelectric sensors, which can only roughly determine the presence or absence of a bottle cap. However, the quality of a bottle cap is multifaceted: it must not be loosely screwed on (e.g., "high cap"), and its interior must be completely sealed with aluminum foil. Existing technologies often separate these two checks or simply ignore the inspection of the internal aluminum foil. For detecting the amount of medicine inside the bottle, early methods often used weighing, but this is slow and easily affected by the bottle's own weight tolerance. Furthermore, in many existing production lines, the detection of bottle cap presence, cap tightness, aluminum foil integrity, and medicine content is often performed by multiple independent devices or workstations. This discrete design not only increases production line length, equipment costs, and maintenance complexity. Utility Model Content

[0004] In view of the above problems, this utility model is proposed to provide a bottle cap filling quantity rejection and pill blowing device that overcomes or at least partially solves the above problems. It can solve the problem of low production line integration caused by multi-station detection in the existing medicine bottle detection mechanism, as well as the problems of inaccurate detection of bottle cap screwing quality, internal aluminum foil integrity and medicine filling quantity, and slow response speed.

[0005] Specifically, this utility model provides a device for detecting the amount of medicine in bottle caps and rejecting them, as well as for blowing pills. The device includes a frame, on which a bottle conveying mechanism and a bottle detection mechanism are mounted. The bottle conveying mechanism is used to convey medicine bottles, and the bottle detection mechanism is located above the bottle conveying mechanism. The bottle detection mechanism includes: Mounting bracket, fixedly installed on the upper side of the frame; A metal sensor is mounted on the mounting bracket and positioned directly above the medicine bottle delivery mechanism; The first through-beam sensor has a first transmitter and a first receiver, both of which are arranged on the mounting bracket along the same horizontal direction and respectively placed on the left and right sides of the medicine bottle delivery mechanism. The first receiver receives the light signal from the first transmitter. The second through-beam sensor has a second transmitter and a second receiver, both of which are arranged on the mounting bracket along the same horizontal direction and respectively placed on the left and right sides of the medicine bottle delivery mechanism. The second receiver receives the light signal from the second transmitter. The height of the second through-beam sensor is lower than that of the first through-beam sensor. A pusher is mounted on the mounting bracket and positioned behind the first and second through-beam sensors, configured to push the medicine bottle out of the medicine bottle conveying mechanism; the pusher is electrically connected to the metal sensor, the first through-beam sensor, and the second through-beam sensor respectively.

[0006] Optionally, the mounting bracket specifically comprises a first plate and two second plates; Both second plates are vertically mounted on the upper side of the frame and horizontally spaced on the left and right sides of the medicine bottle conveying mechanism; the left and right ends of the first plate are respectively mounted on the upper ends of the two second plates; The metal sensor is vertically mounted on the first plate, the first transmitter and the second transmitter are disposed on the second plate, and the second receiver and the second receiver are disposed on another second plate.

[0007] The metal sensor, the first transmitter, the first receiver, the second transmitter, and the second receiver are all disposed in the same vertical plane.

[0008] Optionally, the first plate has a vertical through hole, and each of the second plates has two horizontal through holes. The nut is installed in each of the through holes; The outer edges of the metal sensor, the first transmitter, the first receiver, the second transmitter, and the second receiver are all provided with circular cylinders, and each of the circular cylinders is provided with external threads; the external threads on the metal sensor, the first transmitter, the first receiver, the second transmitter, and the second receiver are respectively threaded with nuts at corresponding positions for installation.

[0009] Optionally, it also includes a pill-blowing mechanism; The pill blowing mechanism includes an air blowing pipe, an air regulating valve, and a gas air compression system; The air blowing tube is horizontally installed on the frame and placed on one side of the medicine bottle conveying mechanism, with the air outlet of the air blowing tube higher than the medicine bottle conveying mechanism. The air regulating valve is installed on the air blowing pipe and is used to regulate the airflow in the air blowing pipe; The gas air compression system is mounted on the frame and configured to provide high-pressure gas to the air blowing pipe.

[0010] Optionally, each of the two second plates has a mounting hole along the vertical direction, and the mounting hole is horizontally transparent. The medicine bottle detection mechanism further includes: four lifting adjustment mechanisms; each lifting adjustment mechanism is respectively set on the upper and lower sides of each mounting hole, and the four lifting adjustment mechanisms are respectively arranged symmetrically along the left and right sides and the top and bottom sides; The lifting and adjusting mechanism includes a hydraulic cylinder, a piston, and a hydraulic rod; The hydraulic cylinder is vertically installed at its upper / lower ends within the mounting hole; The hydraulic rod is slidably disposed vertically inside the hydraulic cylinder and extends out of the upper / lower ends of the hydraulic cylinder, and is sealed at the sliding connection. The piston is installed at one end of the hydraulic rod inside the hydraulic cylinder and slides against the inner wall of the hydraulic cylinder; the piston divides the hydraulic cylinder into a first chamber and a second chamber, the first chamber being a sealed space formed between the piston and the bottom of the hydraulic cylinder, and the second chamber being a sealed space formed between the piston and the top of the hydraulic cylinder; both the first chamber and the second chamber are filled with hydraulic oil; In the two symmetrical hydraulic cylinders: a connecting pipe connects the first chamber of one hydraulic cylinder to the second chamber of the other, and an on / off valve is provided on each connecting pipe; The ends of the four hydraulic rods are respectively provided with the first transmitter, the first receiver, the second transmitter, and the second receiver.

[0011] Optionally, a horizontally arranged horizontal plate is installed at one end of the hydraulic rod extending from the hydraulic cylinder, and a vertically arranged vertical plate is installed at the end of the horizontal plate facing the medicine bottle conveying mechanism; A threaded hole is provided on the vertical side facing the medicine bottle delivery mechanism. The outer edges of the first transmitter, the first receiver, the second transmitter, and the second receiver are all provided with circular cylinders, and each of the circular cylinders is provided with external threads. The external threads on the first transmitter, the first receiver, the second transmitter, and the second receiver are respectively threadedly engaged with the threaded holes at the corresponding positions for installation.

[0012] A vertically positioned drive handle is installed at the end of the horizontal plate furthest from the medicine bottle conveying mechanism.

[0013] Optionally, a horizontally arranged horizontal plate is installed at one end of the hydraulic rod extending from the hydraulic cylinder, and a vertically arranged vertical plate is installed at the end of the horizontal plate facing the medicine bottle conveying mechanism; A rectangular cylindrical tube is connected to the side of the vertical plate facing the medicine bottle conveying mechanism. Multiple sets of U-shaped holes are evenly distributed around the end of the cylindrical tube. One end of each U-shaped hole is closed, and the other end is open in a notch shape. The first transmitter, the first receiver, the second transmitter, and the second receiver are all provided with connecting posts on their outer edges. Multiple sets of circumferentially distributed locking pins are connected radially on the inner sidewall of the connecting posts. The locking pins cooperate with the corresponding U-shaped holes to ensure that when the locking pins are locked in the closed end of the U-shaped holes, the axial movement of the connecting posts relative to the filter cylinder is restricted. The cylindrical tube is equipped with a spring that cooperates with the connecting column, and is configured to provide a force for the connecting column to move in the direction of the medicine bottle conveying mechanism.

[0014] Optionally, the medicine bottle conveying mechanism includes: a conveyor belt, a drive motor, and multiple rotating rollers; The rotating shafts of the plurality of rotating rollers extend laterally and are rotatably mounted on the frame, and the plurality of rotating rollers are spaced apart longitudinally. The conveyor belt is sleeved on the outside of the plurality of rotating rollers, and the upper end face of the conveyor belt is flush with the upper end face of the frame.

[0015] The drive motor is mounted on the frame and configured to drive the rotating rollers on the front or rear sides to rotate.

[0016] Optionally, the actuating component includes a cylinder and an air supply system; The cylinder is arranged horizontally and mounted on the frame, and is placed on one side of the medicine bottle conveying mechanism; the pushing end of the cylinder is connected to a circular nylon block; The air supply system is mounted on the frame and is used to provide power to the cylinder.

[0017] Optionally, the pill blowing mechanism and the pusher are mounted on the frame and placed on one side of the medicine bottle conveying mechanism, and further include: a collection hopper; The collection hopper is mounted on the frame and positioned on the other side of the medicine bottle conveying mechanism, and is arranged relative to the pill blowing mechanism and the pusher.

[0018] In this utility model's device for detecting bottle cap content and rejecting / blowing pills, a metal sensor is used to detect the integrity of the aluminum foil, while a first and second pair of photoelectric sensors detect the "high cap" and the amount of medicine, respectively. Through the coordinated arrangement of the metal sensor and the two pairs of photoelectric sensors, the detection of three key indicators—aluminum foil, bottle cap tightness, and medicine content—is completed simultaneously on a single device. The device is compact and highly efficient.

[0019] Furthermore, in the bottle cap filling rejection and pill blowing device of this utility model, a high-speed airflow from the blowing pipe is used to clean the bottles that fall onto the conveying mechanism, ensuring a clean working environment, preventing contamination of subsequent medicines and interference with sensor operation, and saving materials.

[0020] Furthermore, in the bottle cap filling rejection and pill blowing device of this utility model, the principle of quantitative flow of hydraulic oil and hydraulic drive is utilized to achieve height adjustment of the hydraulic rod within the hydraulic cylinder. During the height adjustment of one hydraulic rod, the matching other hydraulic rod, under the action of the hydraulic oil within its cylinder, achieves synchronous height adjustment. This not only allows for adaptive adjustment of bottles with different heights and filling amounts, improving the adaptability of the device and avoiding frequent production line changes, thus saving costs, but also enables simultaneous height adjustment of both sides with a single operation of the hydraulic rod, simplifying the operation steps and avoiding the cumbersome operation of precisely aligning the transmitter and generator in the same photoelectric sensor after adjusting the height of both sides.

[0021] Furthermore, in the bottle cap filling rejection and pill blowing device of this utility model, the rotational engagement between the locking pin and the U-shaped hole eliminates the cumbersome installation and disassembly process during the installation of the first transmitter, the first receiver, the second transmitter, and the second receiver. The entire process can be completed in just two steps: "one push and one rotate" and "one press and one rotate," making the installation and disassembly of the through-beam sensor convenient and simple to operate.

[0022] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0023] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic perspective view of one embodiment of the bottle cap filling quantity detection and pill blowing device according to the present invention. Figure 2 This is a schematic perspective view (second view) of an embodiment of the bottle cap filling quantity detection and pill blowing device according to this utility model; Figure 3 This is a schematic front view structural diagram of an embodiment of the bottle cap filling quantity detection rejection and pill blowing device according to the present invention; Figure 4 This is a schematic cross-sectional structural diagram of the medicine bottle detection mechanism in one embodiment of the bottle cap filling quantity rejection and pill blowing device according to the present invention. Figure 5 This is a schematic perspective structural diagram of another embodiment of the bottle cap filling quantity detection rejection and pill blowing device according to the present invention; Figure 6 This is a schematic three-dimensional structural diagram of the lifting and adjusting mechanism in another embodiment of the bottle cap filling quantity rejection and pill blowing device according to the present invention; Figure 7 This is a cross-sectional structural diagram of the connection between the lifting and adjusting mechanisms in the same pair of photoelectric sensors in another embodiment of the bottle cap filling rejection and pill blowing device according to the present invention. Figure 8 This is a three-dimensional structural diagram of the connection and cooperation process between the vertical plate and the connecting column in another embodiment of the bottle cap filling quantity detection and pill blowing device according to this utility model. Figure 9 This is an exploded three-dimensional structural diagram of the connection between the vertical plate and the connecting column in another embodiment of the bottle cap filling rejection and pill blowing device according to this utility model; Figure 10 This is a schematic front view structural diagram of the metal sensor and its connecting part in one embodiment of the bottle cap filling rejection and pill blowing device according to the present invention. Detailed Implementation

[0024] The following reference Figures 1 to 10 This invention describes a phase diagnostic instrument for vibration signals of rotating machinery according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0025] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] Figure 1 This is a three-dimensional schematic structural diagram according to an embodiment of the present utility model, such as... Figure 1 As shown, and with reference Figures 2 to 10 This utility model provides a device for detecting the amount of medicine in a bottle cap and rejecting unfilled pills. It includes a frame 1, on which a bottle conveying mechanism 2 and a bottle detection mechanism 3 are mounted. The bottle conveying mechanism 2 conveys medicine bottles 4, and the bottle detection mechanism 3 is positioned above it. Specifically, the bottle detection mechanism 3 detects various indicators of the medicine bottles 4 passing below it, including whether the aluminum foil in the bottle 4 is properly installed, whether there are any loose foils, and whether the amount of medicine in the bottle 4 meets the standards.

[0029] The medicine bottle detection mechanism 3 includes: a mounting frame 5, a metal sensor 6, a first through-beam sensor 7, a second through-beam sensor 8, and a pusher 9. The mounting frame 5 is fixedly installed on the upper side of the frame 1.

[0030] Metal sensor 6 is mounted on mounting bracket 5 and positioned directly above the medicine bottle conveying mechanism 2. Specifically, metal sensor 6 can detect whether the medicine bottle 4 passing below is sealed with aluminum foil. Metal sensor 6 utilizes the principle of electromagnetic induction high-frequency oscillation. The proximity sensor can detect metal objects approaching it without actual contact. The capacitive proximity sensor consists of a high-frequency oscillator and amplifier, etc. A capacitor is formed between the sensor detection surface and the external environment, participating in the oscillation circuit, initially in an oscillating state. When a metal object approaches the sensor detection surface, the circuit capacitance changes, causing the high-frequency oscillator to oscillate. The two states of oscillation and cessation are converted into electrical signals, which are then amplified into binary switching signals. All metal-type sensors are essentially high-frequency oscillation type. It also has an oscillation circuit, where energy loss due to the induced current flowing within the target object affects the oscillation frequency. The oscillation frequency increases when the target object approaches the sensor. Metal sensor 6 detects this change and outputs a detection signal, thereby determining the presence of metal.

[0031] The first through-beam sensor 7 has a first transmitter 701 and a first receiver 702, both arranged horizontally on the mounting bracket 5 and respectively placed on the left and right sides of the medicine bottle conveying mechanism 2. The first receiver 702 receives the light signal from the first transmitter 701. Specifically, the first through-beam sensor 7 is used to detect whether the bottle cap is tightened and to detect the presence of a high cap, wherein the medicine bottle 4 passes between the first transmitter 701 and the first receiver 702.

[0032] The second through-beam sensor 8 has a second transmitter 801 and a second receiver 802, both arranged horizontally on the mounting bracket 5 and respectively placed on the left and right sides of the medicine bottle conveying mechanism 2. The second receiver 802 receives the light signal from the second transmitter 801. The height of the second through-beam sensor 8 is lower than that of the first through-beam sensor 7. Specifically, the second through-beam sensor 8 is used to detect whether the amount of medicine in the bottle meets the standard.

[0033] Specifically, the working principle of a through-beam sensor is as follows: An independent "transmitter" and "receiver" are installed opposite each other. When the light beam emitted by the transmitter is blocked by an object, the receiver detects the change in the light signal, thus outputting a switching signal to detect the presence of the object. In other words, the transmitter contains a light-emitting element (usually an infrared LED, but lasers can also be used) that continuously emits a modulated light beam. The receiver contains a photosensitive element (such as a phototransistor) facing the transmitter, specifically to receive the emitted light beam. When the light beam emitted by the transmitter is stably received by the receiver, the receiver's internal circuitry detects a sufficiently strong light signal. At this time, the sensor's output state remains unchanged (usually "open" or "closed," depending on the normally open / normally closed configuration). When the medicine bottle 4 passes between the transmitter and receiver, it blocks the light beam. The receiver momentarily loses the ability to receive the light signal, or the intensity of the received light signal drops sharply. The receiver's internal detection circuitry recognizes this sudden change and immediately changes its output state (e.g., from "open" to "closed"). This change in output signal can be read by a PLC, counter, alarm, or other control device, thereby triggering a corresponding action.

[0034] Here, for the first through-beam sensor 7, its first transmitter 701 and second receiver 802 can be ordinary through-beam sensors. The "high-cap" phenomenon can be detected as long as the emitted light signal can be blocked by the "high cap" of the medicine bottle 4. That is, when no "high-cap" phenomenon occurs, the first receiver 702 always receives the complete light signal emitted by the first transmitter 701, thus determining that no "high-cap" phenomenon exists. If the first receiver 702 fails to receive the light signal emitted by the first transmitter 701, it is determined to be a "high-cap" phenomenon, triggering subsequent actions, such as rejecting the defective medicine bottle 4.

[0035] For the second through-beam sensor 8, its second transmitter 801 and second receiver 802 need to achieve the following: during the passage of the bottle, if the amount of medicine is sufficient, the light signal emitted by the second transmitter 801 cannot be received by the second receiver 802, and at this time, the amount of medicine in the bottle 4 is qualified. If the amount of medicine is insufficient, the light signal emitted by the second transmitter 801 can be received by the second receiver 802, and at this time, the amount of medicine in the bottle 4 is unqualified.

[0036] However, it's important to note that the light signal emitted by the second transmitter 801 must be able to penetrate the body of the medicine bottle 4 in order to be received by the second receiver 802. This presents a challenge in selecting the through-beam sensor. Specifically, the operation of through-beam sensors (especially infrared) depends on the receiver's ability to reliably identify the light signal emitted by the transmitter at a specific modulation frequency. The empty plastic bottle itself is also an optical medium that affects the light. Most medicine bottles 4 use transparent or translucent PET, PP, or HDPE plastic. These materials are highly transparent to infrared light, like transparent glass, allowing most infrared light to pass through. Modern through-beam sensors use modulated light (high-frequency flickering infrared light) instead of constant light. The receiver is only sensitive to this specific frequency. This means that even if the plastic bottle reflects or refracts some light, as long as enough modulated light penetrates the bottle to reach the receiver, the sensor can operate stably in the "conductive" state. Simply put: a high-quality through-beam sensor can "see through" a transparent empty plastic bottle as if it doesn't exist. The receiver can still receive a signal that is strong enough and at the correct frequency, so it will not trigger a “blocking” signal.

[0037] The bottles used in the production line of this invention are generally semi-transparent, milky-white in shape, which scatters and attenuates a significant amount of light, substantially shortening the effective detection distance. Therefore, a sensor with a larger detection distance margin is required. For example, if your actual installation distance is 10 centimeters, you should choose a sensor with a nominal detection distance of 1 or 2 meters. This way, even if the bottle attenuates 90% of the light, the through-beam sensor still has a sufficient signal-to-noise ratio to operate stably. Therefore, for common transparent or semi-transparent plastic medicine bottles 4, using a through-beam sensor with sufficient power and a large detection distance margin is entirely feasible and highly reliable.

[0038] The pusher 9 is mounted on the mounting bracket 5 and positioned behind the first through-beam sensor 7 and the second through-beam sensor 8. It is configured to push the medicine bottle 4 out of the medicine bottle conveying mechanism 2. In other words, the pusher 9 is positioned behind the first through-beam sensor 7 and the second through-beam sensor 8. After the metal sensor 6, the first through-beam sensor 7, and the second through-beam sensor 8 have completed their detection, the pusher 9 pushes the unqualified medicine out of the medicine bottle conveying mechanism 2 after a certain delay, thus achieving the function of rejection.

[0039] The pusher 9 is electrically connected to the metal sensor 6, the first through-beam sensor 7, and the second through-beam sensor 8, respectively. Specifically, the electrical connection here also includes a controller 26, preferably a PLC. After the metal sensor 6, the first through-beam sensor 7, and the second through-beam sensor 8 send a "non-conforming" electrical signal to the controller 26, the controller 26 sends a trigger signal to the pusher 9 after a certain delay, pushing the non-conforming medicine bottle 4 out of the medicine bottle conveying mechanism 2.

[0040] In use, the bottle cap filling rejection and pill blowing device of this utility model involves transporting the medicine bottle 4 on a bottle 4 conveyor structure. When it reaches the mounting frame 5 of the drug testing mechanism, the metal sensor 6 on the mounting frame 5 sends an "unqualified" electrical signal to the controller 26 if there is no aluminum foil sealing inside the bottle. The first transmitter 701 emits a light signal. If the first receiver 702 receives the complete light signal emitted by the first transmitter 701, it does not emit a trigger signal. If the first receiver 702 fails to receive the light signal emitted by the first transmitter 701, it is determined to be unqualified. If the bottle is overfilled ("high cap"), a "non-compliant" electrical signal is sent to the controller 26. If the light signal emitted by the second transmitter 801 cannot be received by the second receiver 802, the bottle 4 is considered to have a sufficient filling volume, and no trigger signal is sent. If the light signal emitted by the second transmitter 801 can be received by the second receiver 802, it indicates that the filling volume is insufficient, and a "non-compliant" electrical signal is sent to the controller 26. If any of the "non-compliant" electrical signals emitted by the metal sensor 6, the first through-beam sensor 7, and the second through-beam sensor 8 are received by the controller 26, the controller 26 will send a trigger signal to the pusher 9 after a certain delay, pushing the non-compliant bottle 4 out of the bottle conveying mechanism 2, thus completing the screening of the non-compliant bottle 4.

[0041] In this embodiment, the integrity of the aluminum foil is detected by metal sensor 6, while the first through-beam sensor 7 and the second through-beam sensor 8 detect the "high cap" and the amount of medicine, respectively. Through the coordinated arrangement of metal sensor 6 and the two pairs of through-beam sensors, the detection of three key indicators—aluminum foil, cap tightness, and medicine amount—is completed simultaneously on a single device, resulting in a compact structure and high detection efficiency.

[0042] In some embodiments of this utility model, such as Figure 2-4 As shown, the mounting bracket 5 consists of a first plate 501 and two second plates 502.

[0043] Both second plates 502 are vertically mounted on the upper side of the frame 1 and horizontally spaced on the left and right sides of the medicine bottle conveying mechanism 2. The left and right ends of the first plate 501 are respectively mounted on the upper ends of the two second plates 502.

[0044] Metal sensor 6 is vertically mounted on first plate 501, first transmitter 701 and second transmitter 801 are disposed on second plate 502, and second receiver 802 are disposed on another second plate 502. Specifically, first transmitter 701 and first receiver 702 are disposed in the same horizontal direction.

[0045] The metal sensor 6, the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802 are all disposed in the same vertical plane. Specifically, being disposed in the same vertical plane allows for simultaneous detection at the same location, improving detection efficiency and avoiding multi-station detection.

[0046] In some embodiments of this utility model, such as Figure 1-5 As shown, a vertical through hole 10 is provided on the first plate 501, and two horizontal through holes 10 are provided on each second plate 502.

[0047] A nut 11 is installed in each through hole 10. A circular cylinder 12 is provided on the outer edge of the metal sensor 6, the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802. Each circular cylinder 12 has an external thread 13. The external threads 13 on the metal sensor 6, the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802 are respectively threaded into the nuts 11 at their corresponding positions for installation.

[0048] In this embodiment, the threaded installation method facilitates the replacement and selection of through-beam sensors with different power and detection distance margins for different types of medicine bottles 4. The threaded installation method also facilitates the installation of the through-beam sensors.

[0049] In some embodiments of this utility model, such as Figure 1-4 As shown, the device for detecting the amount of contents in the bottle cap and rejecting and blowing pills also includes a pill blowing mechanism 14. Specifically, the pill blowing mechanism 14 cleans up the pills that fall onto the bottle conveying mechanism 2. If the pills are not automatically cleaned in time, they will contaminate the bottom of the subsequent bottles, interfere with the operation of the sensors, cause waste of materials, and seriously affect the cleanliness and compliance of the site.

[0050] The pill blowing mechanism 14 includes an air blowing pipe 1401, an air regulating valve, and a gas air compression system 1403.

[0051] The air blowing pipe 1401 is horizontally installed on the frame 1 and placed on one side of the medicine bottle conveying mechanism 2, with the air outlet of the air blowing pipe 1401 slightly higher than the medicine bottle conveying mechanism 2. Specifically, the air blowing pipe 1401 should be installed as close as possible to the medicine conveying mechanism, while not affecting the normal conveying of the medicine bottle 4.

[0052] An air regulating valve is installed on the air blowing pipe 1401 to adjust the airflow volume in the air blowing pipe 1401. Specifically, different airflow volumes can be used to blow pills of different sizes. The air regulating valve here can be automatically controlled by the controller 26 or manually controlled.

[0053] A gas-air compression system 1403 is mounted on the frame 1 and configured to provide high-pressure gas to the blowing pipe 1401. Specifically, this gas-air compression system compresses air into high-pressure gas, thereby increasing the airflow velocity delivered to the blowing pipe 1401 to sweep away the pills. In some embodiments, the gas-air compression system 1403 may also be implemented using an air pump.

[0054] In this embodiment, the high-speed airflow from the air blowing pipe 1401 is used to clean the medicine bottle conveying mechanism 2, ensuring a clean working environment, preventing contamination of subsequent medicines and interference with sensor operation, and saving materials.

[0055] In pharmaceutical production lines, it is often necessary to inspect various types of medicine bottles 4, such as those with different heights and different filling capacities. Therefore, the vertical positions of the first pair of photoelectric sensors 7 and the second pair of photoelectric touch sensors need to be adjusted. In some embodiments of this invention, such as... Figure 5 , 7 As shown, each of the two second plates 502 has a mounting hole 15 vertically, and the mounting holes 15 are horizontally transparent. Specifically, the mounting hole 15 is a circular structure, and the diameter of the circular hole is larger than the thickness of the second plate 502, so that the mounting hole 15 is horizontally transparent. The width of the transparency is defined as the first width.

[0056] The medicine bottle detection mechanism 3 also includes four lifting adjustment mechanisms 16. Each lifting adjustment mechanism 16 is respectively disposed on the upper and lower sides of each mounting hole 15, and the four lifting adjustment mechanisms 16 are symmetrically arranged horizontally and vertically. That is to say, the four lifting mechanisms can be used to adjust the height of the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802, respectively, but it must be ensured that the first transmitter 701 and the first receiver 702 are set at the same height, and the second transmitter 801 and the second receiver 802 are set at the same height.

[0057] The lifting and adjusting mechanism 16 includes a hydraulic cylinder 1601, a piston 1603, and a hydraulic rod 1602. The hydraulic cylinder 1601 is vertically installed at its upper / lower ends within the mounting hole 15.

[0058] The hydraulic rod 1602 is vertically slidable within the hydraulic cylinder 1601, extending beyond the upper and lower ends of the cylinder 1601, and is sealed at the sliding connection. Specifically, the sealing method is varied, and the sealing components include a double-lip dust seal and a step seal combination seal ring arranged sequentially from the outside to the inside. The step seal combination seal ring is composed of an O-ring and a PTFE stepped ring, used to achieve primary sealing under high pressure and maintain low friction. Furthermore, a polyoxymethylene guide ring is provided inside the cylinder head to support the hydraulic rod 1602, ensuring smooth movement and coaxiality. This guarantees the sealing effect.

[0059] Piston 1603 is installed at one end of hydraulic rod 1602 within hydraulic cylinder 1601 and slides against the inner wall of hydraulic cylinder 1601. Piston 1603 divides hydraulic cylinder 1601 into a first chamber 1604 and a second chamber 1605. The first chamber 1604 is a sealed space between piston 1603 and the bottom of hydraulic cylinder 1601, and the second chamber 1605 is a sealed space between piston 1603 and the top of hydraulic cylinder 1601. Both first chamber 1604 and second chamber 1605 are filled with hydraulic oil. In the two symmetrically arranged hydraulic cylinders 1601, a connecting pipe 1606 connects the first chamber 1604 of one hydraulic cylinder 1601 to the second chamber 1605 of the other, and each connecting pipe 1606 is equipped with an on / off valve 1607. That is to say, the hydraulic cylinders 1601 of the same lifting adjustment mechanism 16 on the same through-beam sensor are connected, thereby achieving synchronous adjustment of the height of hydraulic rod 1602.

[0060] Specifically, taking the two lifting adjustment mechanisms 16 connected to the first through-beam sensor 7 as an example, when the left hydraulic rod 1602 moves upward, the hydraulic oil in the first chamber 1604 enters the second chamber 1605 of the right hydraulic cylinder 1601 through the connecting pipe 1606, and the hydraulic oil in the left second chamber 1605 enters the right second chamber 1605 of the right hydraulic cylinder 1601 through the connecting pipe 1606. After the height adjustment is completed, the on / off valve 1607 is closed, and the hydraulic rod 1602 is locked in the current position. Since the amount of circulating hydraulic oil remains constant, the moving distance of the left hydraulic rod 1602 is consistent with the moving distance of the right hydraulic rod 1602, achieving synchronous adjustment.

[0061] The ends of the four hydraulic rods 1602 are respectively equipped with a first transmitter 701, a first receiver 702, a second transmitter 801, and a second receiver 802. Specifically, after the hydraulic rods 1602 have completed the vertical height adjustment, the heights of the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802 can be adjusted.

[0062] When using the bottle cap filling rejection and pill blowing device of this embodiment, the height positions of the first through-beam sensor 7 and the second through-beam sensor 8 need to be adjusted when detecting medicine bottles 4 of different heights and filling amounts. During adjustment, firstly, the on / off valve 1607 on the connecting pipe 1606 of the first through-beam sensor 7 or the second through-beam sensor 8 is opened to allow conduction. Then, a hydraulic rod 1602 is pulled to adjust the height. At this time, the hydraulic oil in the first chamber 1604 enters the second chamber 1605 of the right hydraulic cylinder 1601 through the connecting pipe 1606, and the hydraulic oil in the left second chamber 1605 enters the second chamber 1605 of the right hydraulic cylinder 1601 through the connecting pipe 1606. After the height adjustment is completed, the on / off valve 1607 is closed, and the hydraulic rod 1602 is locked in the current position.

[0063] In this embodiment, by utilizing the quantitative flow of hydraulic oil and the principle of hydraulic drive, the height of the hydraulic rod 1602 within the hydraulic cylinder 1601 can be adjusted. During the height adjustment of one hydraulic rod 1602, the matching other hydraulic rod 1602, under the action of the hydraulic oil within its cylinder 1601, achieves synchronous height adjustment. This not only allows for adaptive adjustment of medicine bottles 4 with different heights and dosages, improving the adaptability of the device and avoiding frequent production line changes, thus saving costs, but also enables simultaneous height adjustment of both sides of the hydraulic rod 1602 in a single operation. This simplifies the operation steps and avoids the cumbersome operation of precisely aligning the transmitter and generator in the same photoelectric sensor after adjusting the height of both sides.

[0064] In some embodiments of this invention, alignment scales are provided on the second plate 502. This facilitates precise adjustment by the user when adjusting the height.

[0065] In some embodiments of this utility model, such as Figure 5 , 6 As shown, a horizontal plate 17 is installed at one end of the hydraulic rod 1602 extending from the hydraulic cylinder 1601, and a vertical plate 18 is installed at the end of the horizontal plate 17 facing the medicine bottle conveying mechanism 2.

[0066] A threaded hole 19 is provided on the vertical side facing the medicine bottle conveying mechanism 2. A circular cylinder 12 is provided on the outer edge of the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802, and each circular cylinder 12 has an external thread 13. The external threads 13 on the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802 are threadedly engaged with the threaded hole 19 at the corresponding position. A vertically positioned drive handle 29 is installed on the end of the horizontal plate 17 away from the medicine bottle conveying mechanism 2.

[0067] In this embodiment, the threaded installation method facilitates the replacement and selection of through-beam sensors with different power and detection distance margins for different types of medicine bottles 4. The threaded installation method also facilitates the installation of the through-beam sensors.

[0068] In some embodiments of this utility model, such as Figure 5 , 8 As shown in Figure 9, a horizontal plate 17 is installed at one end of the hydraulic rod 1602 extending from the hydraulic cylinder 1601, and a vertical plate 18 is installed at the end of the horizontal plate 17 facing the medicine bottle conveying mechanism 2. Specifically, the thickness of the horizontal plate 17 is defined as the second width, wherein the first width is equal to the second width, which is used to restrict the horizontal plate 17 from rotating along the horizontal plane.

[0069] A rectangular cylindrical tube 21 is connected to the side of the vertical plate 18 facing the medicine bottle conveying mechanism 2. Multiple sets of U-shaped holes 20 are evenly distributed circumferentially at the end of the cylindrical tube 21. One end of each U-shaped hole 20 is closed, and the other end is open in a notch shape. Specifically, the U-shaped hooks are arranged in a manner similar to a hook. The outer edges of the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802 are all provided with connecting posts 22. Multiple sets of circumferentially distributed locking pins 23 are radially connected to the inner wall of the connecting post 22. The locking pins 23 cooperate with corresponding U-shaped holes 20, ensuring that when the locking pin 23 is engaged in the closed end within the U-shaped hole 20, the axial movement of the connecting post 22 relative to the filter cylinder is restricted. A spring 24, cooperating with the connecting post 22, is provided inside the cylindrical cylinder 21 to provide a force for the connecting post 22 to move in the direction of the medicine bottle delivery mechanism 2. Specifically, the outer diameter of the connecting post 22 matches the inner diameter of the cylindrical cylinder 21, allowing it to be smoothly inserted into the cylindrical cylinder 21. The four sets of locking pins 23 on the connecting post 22 enter from the notches in the U-shaped hole 20. When it reaches the first bend, the connecting post 22 is circumferentially twisted to reach the second bend. At this time, the spring 24 is always in a compressed state, always applying an outward pushing force to the connecting post 22. At this time, under the action of the spring 24, the locking pins 23 are locked in the closed end of the U-shaped hole 20. Without the action of external force, the rotation of the connecting post 22 relative to the cylindrical cylinder 21 and the relative movement between them in the axial direction are restricted, realizing the reliable installation of the connecting post 22, thereby further realizing the reliable installation of the first transmitter 701, the first receiver 702, the second transmitter 801 and the second receiver 802. When disassembly is required, press the connecting post 22 towards the cylindrical cylinder 21 to compress the spring 24. Then rotate the connecting post 22 in the opposite direction to the first bend and pull it out of the cylindrical cylinder 21 to complete the disassembly of the connecting post 22.

[0070] In this embodiment, the rotational engagement between the locking pin 23 and the U-shaped hole 20 eliminates the tedious installation and disassembly process during the installation of the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802. The entire process can be completed in just two steps: "one push and one rotate" and "one press and one rotate". The operation is convenient and simple.

[0071] In some embodiments of this utility model, such as Figure 1 , 2 As shown, the medicine bottle conveying mechanism 2 includes a conveyor belt 201, a drive motor 202, and multiple rotating rollers 203. The rotating shafts of the multiple rotating rollers 203 all extend laterally and are rotatably mounted on the frame 1. The multiple rotating rollers 203 are spaced longitudinally. The conveyor belt 201 is fitted over the outer side of the multiple rotating rollers 203, and the upper end face of the conveyor belt 201 is flush with the upper end face of the frame 1. Specifically, this facilitates the cleaning and blowing of the pills by the pill blowing mechanism 14. The drive motor 202 is mounted on the frame 1 and is configured to drive the rotating rollers 203 on the front or rear side to rotate.

[0072] The rotating rollers 203 at both ends provide transmission support for the conveyor belt 201, while the rotating roller 203 in the middle supports the conveyor belt, preventing it from collapsing in the middle. Furthermore, the drive motor 202 is a servo motor, which is mounted on the frame 1. Its output shaft is coaxially mounted with the shaft of the rotating roller 203 at the end to achieve the purpose of driving rotation.

[0073] In some embodiments of this utility model, such as Figure 1-3 As shown, the pusher 9 includes a cylinder 901 and an air supply system 902.

[0074] Cylinder 901 is horizontally positioned and mounted on the frame 1, located on one side of the medicine bottle conveying mechanism 2. The pushing end of cylinder 901 is connected to a circular nylon block 903. Specifically, the circular nylon block 903 increases the contact area between the end of cylinder 901 and the medicine bottle 4. An air supply system 902 is mounted on the frame 1 and provides power to cylinder 901. Specifically, the air supply system 902 can be an air compressor, utilizing mechanisms such as reversing valves to achieve frequent power input to cylinder 901; details will not be elaborated here.

[0075] In this embodiment, the circular nylon block 903 installed at the front end of the pusher 9 increases the contact area between it and the medicine bottle 4, making the rejection action more sensitive and accurate.

[0076] In some embodiments of this utility model, such as Figure 1As shown, the pill blowing mechanism 14 and the pusher 9 are mounted on the frame 1 and positioned on one side of the bottle conveying mechanism 2. The system also includes a collection hopper 25. The collection hopper 25 is mounted on the frame 1 and positioned on the other side of the bottle conveying mechanism 2, relative to the pill blowing mechanism 14 and the pusher 9. In this embodiment, the collection hopper 25 is used to collect the blown-out pills and defective bottles 4.

[0077] In some embodiments of this utility model, such as Figure 1 As shown, an inclined baffle 27 is also installed above the collection hopper 25 and mounted on the frame 1 to prevent the pill blowing mechanism 14 from blowing the pills out.

[0078] In some embodiments of this utility model, such as Figure 1 As shown, the metal sensor 6, the first transmitter 701, the first receiver 702, the second transmitter 801, and the second receiver 802 are all disposed in the same vertical plane. The pusher 9 is at a certain distance from this vertical plane. The pusher 9 and the medicine bottle conveying mechanism 2 are both connected to the controller 26. Since the conveying speed of the medicine bottle conveying mechanism 2 is constant, after the controller 26 receives a "failure" signal, it can calculate the delay time based on the conveying speed of the medicine bottle 4, and then, after the delay time, control the pusher 9 to work through the controller 26.

[0079] In some embodiments of this utility model, a limit switch can also be provided above the pusher 9 to detect when the medicine bottle 4 reaches this position. After the controller 26 receives a "non-conforming" signal, once the non-conforming medicine bottle 4 reaches the position of the pusher 9, the limit switch sends a command to the controller 26, and the controller 26 controls the pusher 9 to immediately push it.

[0080] In some embodiments of this utility model, such as Figure 1 , 2 As shown, two sets of clamping components 28 are also provided before the detection structure of the medicine bottle 4. The clamping components 28 are installed on the frame 1 and are located on the left and right sides of the medicine bottle conveying mechanism 2.

[0081] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A device for detecting the fill volume of bottle caps and rejecting and blowing pills, comprising a frame, characterized in that, The frame is equipped with a bottle conveying mechanism and a bottle detection mechanism. The bottle conveying mechanism is used to convey bottles, and the bottle detection mechanism is located above the bottle conveying mechanism. The bottle detection mechanism includes: Mounting bracket, fixedly installed on the upper side of the frame; A metal sensor is mounted on the mounting bracket and positioned directly above the medicine bottle delivery mechanism; The first through-beam sensor has a first transmitter and a first receiver, both of which are arranged on the mounting bracket along the same horizontal direction and respectively placed on the left and right sides of the medicine bottle delivery mechanism. The first receiver receives the light signal from the first transmitter. The second through-beam sensor has a second transmitter and a second receiver, both of which are arranged on the mounting bracket along the same horizontal direction and respectively placed on the left and right sides of the medicine bottle delivery mechanism. The second receiver receives the light signal from the second transmitter. The height of the second through-beam sensor is lower than that of the first through-beam sensor. A pusher is mounted on the mounting bracket and positioned behind the first and second through-beam sensors, configured to push the medicine bottle out of the medicine bottle conveying mechanism; the pusher is electrically connected to the metal sensor, the first through-beam sensor, and the second through-beam sensor respectively.

2. The device for detecting and rejecting bottle cap contents and blowing pills according to claim 1, characterized in that, The mounting bracket specifically consists of a first plate and two second plates; Both second plates are vertically mounted on the upper side of the frame and horizontally spaced on the left and right sides of the medicine bottle conveying mechanism; the left and right ends of the first plate are respectively mounted on the upper ends of the two second plates; The metal sensor is vertically mounted on the first plate, the first transmitter and the second transmitter are disposed on the second plate, and the second receiver and the second receiver are disposed on another second plate; The metal sensor, the first transmitter, the first receiver, the second transmitter, and the second receiver are all disposed in the same vertical plane.

3. The device for detecting bottle cap content and rejecting and blowing pills according to claim 2, characterized in that, The first plate has a vertical through hole, and each of the second plates has two horizontal through holes. A nut is installed in each of the through holes; The outer edges of the metal sensor, the first transmitter, the first receiver, the second transmitter, and the second receiver are all provided with circular cylinders, and each of the circular cylinders is provided with external threads; the external threads on the metal sensor, the first transmitter, the first receiver, the second transmitter, and the second receiver are respectively threaded with nuts at corresponding positions for installation.

4. The device for detecting bottle cap content and rejecting and blowing pills according to claim 3, characterized in that, It also includes a pill-blowing mechanism; The pill blowing mechanism includes an air blowing pipe, an air regulating valve, and a gas air compression system; The air blowing tube is horizontally installed on the frame and placed on one side of the medicine bottle conveying mechanism, with the air outlet of the air blowing tube higher than the medicine bottle conveying mechanism. The air regulating valve is installed on the air blowing pipe and is used to regulate the airflow in the air blowing pipe; The gas air compression system is mounted on the frame and configured to provide high-pressure gas to the air blowing pipe.

5. The device for detecting bottle cap content and rejecting and blowing pills according to claim 2, characterized in that, The two second plates each have mounting holes vertically, and the mounting holes are horizontally transparent. The medicine bottle detection mechanism further includes: four lifting and adjusting mechanisms; each lifting and adjusting mechanism is respectively set on the upper and lower sides of each mounting hole, and the four lifting and adjusting mechanisms are respectively arranged symmetrically along the left and right sides and the top and bottom sides; The lifting and adjusting mechanism includes a hydraulic cylinder, a piston, and a hydraulic rod; The hydraulic cylinder is vertically installed at its upper / lower ends within the mounting hole; The hydraulic rod is slidably disposed vertically inside the hydraulic cylinder and extends out of the upper / lower ends of the hydraulic cylinder, and is sealed at the sliding connection. The piston is installed at one end of the hydraulic rod inside the hydraulic cylinder and slides against the inner wall of the hydraulic cylinder; the piston divides the hydraulic cylinder into a first chamber and a second chamber, the first chamber being a sealed space formed between the piston and the bottom of the hydraulic cylinder, and the second chamber being a sealed space formed between the piston and the top of the hydraulic cylinder; both the first chamber and the second chamber are filled with hydraulic oil; In the two symmetrical hydraulic cylinders: a connecting pipe connects the first chamber of one hydraulic cylinder to the second chamber of the other, and an on / off valve is provided on each connecting pipe; The ends of the four hydraulic rods are respectively provided with the first transmitter, the first receiver, the second transmitter, and the second receiver.

6. The device for detecting bottle cap content and rejecting and blowing pills according to claim 5, characterized in that, A horizontally arranged plate is installed at one end of the hydraulic rod extending from the hydraulic cylinder, and a vertically arranged plate is installed at the end of the horizontal plate facing the medicine bottle conveying mechanism. A threaded hole is provided on the vertical side facing the medicine bottle delivery mechanism. The outer edges of the first transmitter, the first receiver, the second transmitter, and the second receiver are all provided with circular cylinders, and each of the circular cylinders is provided with external threads. The external threads on the first transmitter, the first receiver, the second transmitter, and the second receiver are respectively threadedly engaged with the threaded holes at the corresponding positions for installation. A vertically positioned drive handle is installed at the end of the horizontal plate furthest from the medicine bottle conveying mechanism.

7. The device for detecting bottle cap content and rejecting and blowing pills according to claim 5, characterized in that, A horizontally arranged plate is installed at one end of the hydraulic rod extending from the hydraulic cylinder, and a vertically arranged plate is installed at the end of the horizontal plate facing the medicine bottle conveying mechanism. A rectangular cylindrical tube is connected to the side of the vertical plate facing the medicine bottle conveying mechanism. Multiple sets of U-shaped holes are evenly distributed around the end of the cylindrical tube. One end of each U-shaped hole is closed, and the other end is open in a notch shape. The first transmitter, the first receiver, the second transmitter, and the second receiver are all provided with connecting posts on their outer edges. Multiple sets of circumferentially distributed locking pins are connected radially on the inner sidewall of the connecting posts. The locking pins cooperate with the corresponding U-shaped holes to ensure that when the locking pins are locked in the closed end of the U-shaped holes, the axial movement of the connecting posts relative to the filter cylinder is restricted. The cylindrical tube is equipped with a spring that cooperates with the connecting column, and is configured to provide a force for the connecting column to move in the direction of the medicine bottle conveying mechanism.

8. The device for detecting bottle cap content and rejecting and blowing pills according to claim 1, characterized in that, The medicine bottle conveying mechanism includes: a conveyor belt, a drive motor, and multiple rotating rollers; The rotating shafts of the plurality of rotating rollers extend laterally and are rotatably mounted on the frame, and the plurality of rotating rollers are spaced apart longitudinally. The conveyor belt is sleeved on the outside of the plurality of rotating rollers, and the upper end face of the conveyor belt is flush with the upper end face of the frame. The drive motor is mounted on the frame and configured to drive the rotating rollers on the front or rear sides to rotate.

9. The device for detecting bottle cap content and rejecting and blowing pills according to claim 1, characterized in that, The actuating component includes a cylinder and an air supply system; The cylinder is arranged horizontally and mounted on the frame, and is placed on one side of the medicine bottle conveying mechanism; the pushing end of the cylinder is connected to a circular nylon block; The air supply system is mounted on the frame and is used to provide power to the cylinder.

10. The device for detecting bottle cap content and rejecting and blowing pills according to claim 4, characterized in that, The pill blowing mechanism and the pusher are mounted on the frame and placed on one side of the medicine bottle conveying mechanism, and also include: a collection hopper; The collection hopper is mounted on the frame and positioned on the other side of the medicine bottle conveying mechanism, and is arranged relative to the pill blowing mechanism and the pusher.

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