Anti-drop string cleaning reel device

Abstract

A kind of cleaning anti-straight drop string drum device, by taking material, middle, bottom three sections rectangular cleaning string drum section order communication and install on the medicine cabinet frame body with same inclination, its taking material, bottom two cleaning string drum section respectively through its taking material mouth and the two conveyors on frame body link to take material.Three string drum sections are all installed with cleaning dust collection mechanism in the same way: by dust collection head box inner screw rod, slide rail, speed reducer motor and gear set, guide wheel and brush guide component composition.In the blanking stage, medicinal material decoction piece is decelerated to slide to discharge port in broken line form and completes discharge.In cleaning stage, under the drive of motor, dust collection head box placed in string drum section descends along screw rod and two slide rails, and dust on string drum section inner wall is cleaned, and it descends to bottom and stops motor rotation by touching upper limit switch to complete a cleaning work.The application has the characteristics of medicinal material decoction piece deceleration falling anti-splashing, simple operation, easy maintenance and self-cleaning function etc.

Description

Technical Field

[0001] This invention relates to a material feeding and unloading device connected to a conveyor belt, specifically a cleaning and anti-falling tube device used in conjunction with an intelligent Chinese medicine cabinet. Background Technology

[0002] Traditional Chinese medicine is profound and extensive. Chinese medicine prescriptions are usually only for specific patients and diseases. The same medicine can have very different effects in different prescriptions. The traditional important dispensing process includes: prescription writing, prescription review, medicine picking and dispensing, proofreading, and dispensing. At present, almost all Chinese medicine pharmacies still retain the traditional manual dispensing method. Important cabinets usually store hundreds of Chinese medicinal materials, which are stored in thousands of medicine boxes. This makes the medicine picking process of Chinese medicine pharmacists very time-consuming, laborious and prone to errors.

[0003] Traditional Chinese medicine (TCM) hospital staff have made some beneficial explorations in the field of intelligent TCM medicine cabinets, such as "An Intelligent TCM Medicine Cabinet" (CN215382438): The bottom of the medicine cabinet is a medicine cabinet, and the top is a medicine storage cabinet. The medicine storage cabinet is divided into several medicine boxes by partitions. The medicine boxes are slidably connected inside the medicine cabinet. The medicine boxes are equipped with LCD screens to display patient information and prescription information, which facilitates the work of retrieving medicine.

[0004] Another example is the "Intelligent Traditional Chinese Medicine Cabinet Based on PLC Control" (CN215776883): By setting a PLC module on the traditional Chinese medicine cabinet, the PLC module controls the corresponding medicine cabinet to turn on the medicine dispensing indicator light according to the prescription, which makes it convenient for traditional Chinese medicine pharmacists to dispense medicine.

[0005] The aforementioned patent documents only address improvements made to the manual dispensing and preparation process and are not applicable to dispensing and picking up medicines mainly in bulk or in small-packaged bags through combinations of different unit medicine cabinets.

[0006] In an intelligent Chinese medicine cabinet, prepared herbal pieces are shredded by a stirring device, metered by a metering device, and then conveyed out by a belt conveyor installed inside the cabinet. Multiple conveyor belts are typically arranged from bottom to top in the same discharge channel. When the prepared herbal pieces are discharged from the upper conveyor belt, a cassette discharge channel is generally used, meaning that prepared herbal pieces from multiple conveyor belts are discharged through this cassette to a loading tray below. This cassette has the following drawbacks: First, the prepared herbal pieces fall vertically through the cassette, causing splashing and hindering collection by the loading tray. Second, dust easily adheres to the inner wall of the cassette during use, causing the same prescription to be mixed with dust from previous prescriptions. Third, the dust adhering to the inner wall of the cassette is difficult to clean. Summary of the Invention

[0007] The purpose of this invention is to provide a cleaning and anti-falling tube device that can be used in conjunction with an intelligent Chinese medicine cabinet and has functions such as deceleration, anti-splashing, and self-cleaning.

[0008] The objective of this invention is achieved as follows: a cleaning and anti-falling spool device, wherein the cross-sections of the material-taking cleaning spool section, the intermediate cleaning spool section, and the bottom cleaning spool section are all rectangular, arranged at the same angle from top to bottom, and the discharge port of the upper spool section is in contact with or welded to the inlet of the lower spool section.

[0009] The material handling and cleaning drum section, the intermediate cleaning drum section, and the bottom drum section are each connected to the medicine cabinet frame via a detachable structure.

[0010] The material handling and cleaning drum section structure is as follows: a box cover is installed on the top of the rectangular box with screws, the vertical opening at the bottom of the front side plate of the rectangular box serves as the material handling port, the material handling port is connected to the second layer conveyor belt on the medicine cabinet shelf for material handling, the upper opening of the front side plate of the rectangular box serves as the spare material inlet, a sealing plate is detachably installed on the spare material inlet, and the lower opening of the rear side plate of the rectangular box serves as the material outlet.

[0011] The intermediate cleaning drum section has the following structure: a box cover is installed on the top of the rectangular box with screws, the upper opening of the front side plate of the rectangular box serves as the feed inlet, the feed inlet and the discharge outlet of the material removal cleaning drum section are connected by a sealing ring or by welding, and the lower opening of the rear side plate of the rectangular box serves as the discharge outlet.

[0012] The bottom cleaning drum section structure is as follows: the top of the rectangular box is fitted with a box cover by screws, the upper opening of the front side plate of the rectangular box serves as the inlet, the inlet is connected to the outlet of the middle layer drum section by sealing ring or welding, the lower vertical opening of the front side plate of the rectangular box serves as the material retrieval, the material retrieval is connected to the first layer conveyor belt on the medicine cabinet shelf for material retrieval, and the bottom horizontal opening of the rectangular box serves as the outlet.

[0013] The material handling cleaning drum section, the intermediate cleaning drum section, and the bottom cleaning drum section are all equipped with the following cleaning and dust collection mechanism in the same manner: the dust collection head box is placed inside the rectangular box cavity and has a vertical movement gap between it and the rectangular box cavity cavity. A slide rail is fixed vertically on each of the left and right sides of the top plate of the dust collection head box, and the box cover has mounting holes for the two slide rails to extend upwards. These two slide rails form a sliding pair with two sliders fixed to the inner walls of the left and right side plates of the dust collection head box, respectively. A bearing sleeve is welded to the top plate of the dust collection head box, and the bearing is installed inside the bearing sleeve. A lead screw nut is fixed to the box cover, and the lead screw passes vertically from top to bottom through the D-shaped end of the inner ring of the bearing. A lead screw gear is installed on the lower end of the dust collection head box via a fixing screw. A geared motor is installed on the top plate of the dust collection head box. A drive gear is installed at the end of the geared motor shaft that extends vertically into the inner cavity of the dust collection head box. The drive gear meshes with the lead screw gear and rotates. Two guide wheels are installed on the rear side plate of the dust collection head box. Brushes are installed on the front, rear, left, and right side plates of the dust collection head box. The dust collection head box is surrounded by suction holes. A vacuum suction tube communicating with the inner cavity is installed on the top plate of the dust collection head box. A telescopic flexible hose connected to the vacuum suction tube extends out and connects to the dust collection equipment. It also has an upper limit switch and a lower limit switch to control the upper and lower stroke of the dust collection head box.

[0014] An upper limit block is provided on the top of the slide rail extending from the top of the box cover. An upper limit switch is installed on the top plate of the box cover. A lower limit switch is installed below the slider on the inner wall of the left side panel of the rectangular box. When the vacuum head box moves downward, the upper limit block touches the upper limit switch, and the motor stops rotating. When the vacuum head box moves upward, the top plate of the vacuum head box touches the lower limit switch, and the motor stops rotating.

[0015] The upper limit switch is fixed to the top plate of the box cover by an L-shaped fastener, and the lower limit switch is fixed to the inner wall of the rectangular box by another L-shaped fastener.

[0016] It also has a control circuit board, which is installed inside a control circuit board box consisting of a cover and a body, and the control circuit board box is installed on the outer wall of the intermediate cleaning drum section.

[0017] The detachable structure consists of: L-shaped fasteners welded to the rectangular boxes of the material handling and cleaning drum section, the intermediate cleaning drum section, and the bottom cleaning drum section; triangular rectangular tube supports installed and fixed on the medicine cabinet frame; and the rectangular boxes are bolted to the triangular rectangular tube supports on the medicine cabinet frame via the L-shaped fasteners.

[0018] The guide wheel is fixed to the dust collection head box by a nut.

[0019] The outlet of the dust collection equipment is connected to a rigid main pipe with a switch valve, and the telescopic hoses of the cleaning and dust collection mechanisms of the material handling cleaning drum section, the intermediate cleaning drum section, and the bottom cleaning drum section are respectively connected to the rigid main pipe.

[0020] The upper part of the material handling and cleaning drum section is also provided with a second material handling and cleaning drum section with the same structure: the top of the rectangular box of the second material handling and cleaning drum section is fitted with a box cover by screws, the vertical material handling port of the rectangular box is connected to the third layer conveyor belt on the medicine cabinet shelf for material handling, the material outlet of the rectangular box is sealed to the material inlet of the material handling and cleaning drum section with the sealing plate removed by a sealing ring or by welding, and a cleaning and dust collection mechanism is installed in the rectangular box in the same way.

[0021] A second intermediate cleaning drum section is also connected in series between the material picking and cleaning drum section and the second material picking and cleaning drum section: the top of the rectangular box is fitted with a box cover by screws, the inlet on the rectangular box body is sealed to the outlet of the second material picking and cleaning drum section by a sealing ring or by welding, the outlet on the rectangular box body is sealed to the inlet of the material picking and cleaning drum section by a sealing ring or by welding, and a cleaning and dust collection mechanism is installed inside the rectangular box in the same manner.

[0022] Compared with the prior art, the present invention has the following technical features:

[0023] 1. Slowing Down and Splash Prevention: The side-sliding anti-straight-fall chute provides a material dropping environment that both slows down the material falling and prevents splashing of medicinal herbs upon entering the loading tray. Due to the zigzag structure of the side-sliding anti-straight-fall chute section, the medicinal herbs slide down along the lower zigzag plate of the inner and outer zigzag plates, causing them to slide down in a zigzag pattern and enter the loading tray at the lower outlet. Because the downward speed of the medicinal herbs is reduced, the downward force when falling into the loading tray is significantly reduced, thereby reducing the rebound force of the medicinal herbs falling into the loading tray and achieving a better splash prevention effect.

[0024] 2. Self-cleaning function: Under the control of the control circuit board, the side-sliding anti-straight-fall drum device can collect the dust adhering to the inner wall of the side-sliding anti-straight-fall drum section and the dust in the cavity through the dust collection channel formed by the dust collection box and the dust collection pipe, and store the absorbed dust in the dust collection equipment for easy regular cleaning.

[0025] 3. Easy to operate: The equipment has a simple structure and is easy to operate, reducing the trouble of manual cleaning.

[0026] 4. Convenient maintenance: Due to the modular design of the side-sliding anti-fall duct, only the faulty part can be replaced. The replaced side-sliding anti-fall duct can be repaired in the maintenance workshop, minimizing the impact of maintenance on equipment operation and achieving simple and quick maintenance. Attached Figure Description

[0027] Figure 1 This is an overall (three-section) diagram of the device of the present invention.

[0028] Figure 2 Figure 3 Figure 4 They are Figure 1 The diagram shows a side view of the material handling and cleaning drum section and two perspective views from different angles.

[0029] Figure 5 Figure 6 Figure 7 They are Figure 1 The image shows a side view of the middle cleaning drum section and two perspective views from different angles.

[0030] Figure 8 Figure 9 Figure 10 They are Figure 1 The image shows a side view of the bottom cleaning drum section and two perspective views from different angles.

[0031] Figure 11 Figure 12 These are side and three-dimensional structural diagrams of the material handling and cleaning shunt section (which are basically the same as the middle and bottom material handling shunt sections).

[0032] Figure 13 yes Figure 11 A perspective view from the main viewpoint (showing the transmission device).

[0033] Figure 14 yes Figure 13 3D view of the cross section along line BB.

[0034] Figure 15 yes Figure 14 Assembly diagram.

[0035] Figure 16 Figure 17 They are Figure 14 Enlarged view of part A and Figure 15 Enlarged view of part B.

[0036] Figure 18 Figure 19 These are the side view and the front view of the vacuum head box (including the vacuum head).

[0037] Figure 20 Figure 21 They are Figure 19 Enlarged views of parts C and D.

[0038] Figure 22 yes Figure 12 Exploded view.

[0039] Figure 23 yes Figure 22 Enlarged view of part A.

[0040] Figure 24 It's a 3D view of the box lid.

[0041] Figure 25 yes Figure 24 Enlarged view of part E.

[0042] Figure 26 Figure 27 Figure 28 This is a schematic diagram of the working process of the upper and lower limit switches.

[0043] Figure 26a yes Figure 26 Enlarged view of part C.

[0044] Figure 28a yes Figure 28 Enlarged view of part D.

[0045] Figure 29 Figure 30 These are exploded views and assembly drawings of the lead screw, bearings, and lead screw gear installation.

[0046] Figure 31 yes Figure 30 Enlarged view of part E.

[0047] Figure 32 Figure 33 These are a 3D view and a split view of the control circuit board box.

[0048] Figure 34 Figure 35 Figure 36 They are Figure 1 The diagram shows the installation of the cleaning drum.

[0049] Figure 37 yes Figure 1 The diagram shows the process of material falling inside the drum.

[0050] Figure 38 Figure 39 Figure 40 They are Figure 1 The diagram shows the cleaning process inside the drum. Detailed Implementation

[0051] In the attached diagram, there is a slider mounting hole 4a, a pipe opening 21a on the (telescopic hose) cover, a lead screw nut mounting hole 10a, a geared motor mounting hole 5a, a (bearing sleeve) welding point 28a, a (drive gear) fixing screw mounting hole 29a, a geared motor base 5a, a slide rail mounting hole 6a, a (lower limit switch) fixing screw mounting hole 17, a (cover) slide rail mounting hole 7, a (cover) telescopic hose mounting hole 21a, a (lead screw) screw hole 12a, a (lead screw and gear) D-shaped hole 30a, a (lead screw and gear) screw hole 30b, several (on the frame) unit medicine cabinets 20, and a material falling trajectory 38.

[0052] Figure 1 Figure 4 Figure 7 Figure 10 Figure 14 Figure 23 Figure 29 As shown, a cleaning and anti-falling spool device is provided, wherein the cross-sections of the material picking cleaning spool section 1, the middle cleaning spool section 2 and the bottom cleaning spool section 3 are all rectangular, arranged at the same angle from top to bottom, and the discharge port of the upper spool section 1 is in contact with or welded to the inlet of the lower spool section.

[0053] The material handling and cleaning drum section, the intermediate cleaning drum section, and the bottom drum section are respectively connected to the medicine cabinet frame 19 via a detachable structure;

[0054] The material handling and cleaning drum section structure is as follows: a box cover 8 is installed on the top of the rectangular box with screws, the vertical opening at the bottom of the front side plate of the rectangular box serves as the material handling port 1a, the material handling port 1a is connected to the second layer conveyor belt 37 on the medicine cabinet shelf for material handling, the upper opening of the front side plate of the rectangular box serves as the spare material inlet 1c, a sealing plate is detachably installed on the spare material inlet, and the lower opening of the rear side plate of the rectangular box serves as the material outlet 1b.

[0055] The intermediate cleaning drum section has the following structure: a box cover is installed on the top of the rectangular box with screws, the upper opening of the front side plate of the rectangular box is used as the feed port 2a, the feed port is connected to the discharge port 1b of the material removal cleaning drum section by a sealing ring or welding, and the lower opening of the rear side plate of the rectangular box is used as the discharge port 2b.

[0056] The bottom cleaning drum section structure is as follows: the top of the rectangular box is fitted with a box cover by screws, the upper opening of the front side plate of the rectangular box is used as the inlet 3c, the inlet is connected to the outlet 2b of the middle layer drum section by sealing ring or welding, the lower vertical opening of the front side plate of the rectangular box is used as the material taking 3a, the material taking 3a is connected to the first layer conveyor belt 36 on the medicine cabinet shelf to take material, and the bottom horizontal opening of the rectangular box is used as the outlet 3b.

[0057] The material handling cleaning drum section, the intermediate cleaning drum section, and the bottom cleaning drum section are all equipped with the following cleaning and dust collection mechanism in the same manner: the dust collection head box 14 is placed inside the rectangular box cavity and has a vertical movement gap between it and the rectangular box cavity. A slide rail 6 is fixed vertically on the left and right sides of the top plate of the dust collection head box, and the box cover has mounting holes 7 for the two slide rails to extend upwards. The two slide rails form a sliding pair with two sliders 4 fixed to the inner walls of the left and right side plates of the dust collection head box, respectively. The bearing sleeve 28 is welded to the top plate of the dust collection head box, the bearing 27 is installed in the bearing sleeve, the screw nut 10 is fixed to the box cover 8, the screw 12 is screwed to the screw nut, and the screw passes vertically from top to bottom through the D-shaped inner ring of the bearing 27. A lead screw gear 30 is mounted on the lower end of end face 12b via a fixing screw 12a. A reduction motor 5 is mounted on the top plate of the dust collection head box. A drive gear 29 is mounted on the end of the reduction motor shaft that extends vertically into the inner cavity of the dust collection head box. The drive gear meshes with the lead screw gear and rotates. Two guide wheels 13 are mounted on the rear side plate of the dust collection head box. Brushes are mounted on the front, rear, left, and right side plates of the dust collection head box. Dust collection holes 14a are densely distributed around the dust collection head box. A suction tube communicating with the inner cavity is mounted on the top plate of the dust collection head box. A telescopic hose 21 connected to the suction tube extends from the top plate of the cover 8 and connects to the dust collection device 22. It also has an upper limit switch and a lower limit switch to control the upper and lower strokes of the dust collection head box. The lead screw is tightly fitted with the inner ring of the bearing.

[0058] An upper limit block 11 is provided on the top of the slide rail extending from the top of the box cover. An upper limit switch 9 is installed on the top plate of the box cover. A lower limit switch 16 is installed below the slider on the inner wall of the left side plate of the rectangular box. When the vacuum head box moves downward, the upper limit block touches the upper limit switch, and the motor stops rotating. When the vacuum head box moves upward, the top plate of the vacuum head box touches the lower limit switch, and the motor stops rotating.

[0059] The upper limit switch 9 is fixed to the top plate of the box cover by an L-shaped fastener 9a, and the lower limit switch 16 is fixed to the inner wall of the rectangular box by another L-shaped fastener 16a.

[0060] It also has a control circuit board 35, which is installed inside a control circuit board box 34 consisting of a cover 34a and a body 34b. The control circuit board box is installed on the outer wall of the intermediate cleaning drum section 2.

[0061] The detachable structure consists of L-shaped fasteners 31 welded onto the rectangular boxes of the material handling and cleaning drum section, the intermediate cleaning drum section, and the bottom cleaning drum section, respectively. A triangular rectangular tube support is installed and fixed on the medicine cabinet frame 19. The rectangular box is fixed to the triangular rectangular tube support on the medicine cabinet frame by bolts through the L-shaped fasteners.

[0062] The guide wheel 13 is fixed to the dust collection head box by a nut 13a.

[0063] The outlet of the dust collection equipment is connected to a rigid main pipe with a switch valve 23, and the telescopic hoses of the cleaning and dust collection mechanisms of the material handling cleaning drum section, the intermediate cleaning drum section, and the bottom cleaning drum section are respectively connected to the rigid main pipe.

[0064] The upper part of the material handling and cleaning drum section is also provided with a second material handling and cleaning drum section with the same structure: the top of the rectangular box of the second material handling and cleaning drum section is fitted with a box cover by screws, the vertical material handling port of the rectangular box is connected to the third layer conveyor belt on the medicine cabinet shelf for material handling, the material outlet of the rectangular box is sealed to the material inlet of the material handling and cleaning drum section with the sealing plate removed by a sealing ring or by welding, and a cleaning and dust collection mechanism is installed in the rectangular box in the same way.

[0065] A second intermediate cleaning drum section is also connected in series between the material picking and cleaning drum section and the second material picking and cleaning drum section: the top of the rectangular box is fitted with a box cover by screws, the inlet on the rectangular box body is sealed to the outlet of the second material picking and cleaning drum section by a sealing ring or by welding, the outlet on the rectangular box body is sealed to the inlet of the material picking and cleaning drum section by a sealing ring or by welding, and a cleaning and dust collection mechanism is installed inside the rectangular box in the same manner.

[0066] I. Composition:

[0067] The cleaning anti-falling drum device consists of a dust collection device, a main dust collection pipe, an electrically controlled pipe switch valve, a telescopic dust collection hose, a cleaning drum section, a cleaning anti-falling drum device control circuit board (hereinafter referred to as the control circuit board), and a control circuit board box.

[0068] II. Components and their functions:

[0069] 1. Dust collection equipment: Dust collection equipment is a mature outsourced device that is installed on the outside of the cleaning anti-falling drum device. It provides strong suction for the cleaning anti-falling drum device and collects the absorbed dust. It is connected to the cleaning drum section through the main dust collection pipe and the telescopic trolley hose.

[0070] 2. Main Suction Duct: The main suction duct is a rigid pipe installed on the dust collection equipment and connected to multiple telescopic suction hoses. Its function is to transmit the suction power of the dust collection equipment and distribute it to the connected telescopic suction hoses, further transmitting the suction power to the suction heads in the cleaning drum section. It is also the main channel for the dust collection equipment to collect dust.

[0071] 3. Electrically controlled pipeline switch valve: The electrically controlled pipeline switch valve is installed on the main dust collection pipeline. Its function is as follows: When the cleaning duct section needs to start dust collection, the electrically controlled pipeline switch valve opens under the action of the control circuit board, so that the cleaning duct section can carry out cleaning operations under negative pressure; when the cleaning duct section needs to unload materials, the electrically controlled pipeline switch valve closes under the action of the control circuit board, so that the cleaning duct section can carry out unloading operations under normal air pressure.

[0072] 4. Telescopic Vacuum Hose: A telescopic vacuum hose is a retractable, pressure-resistant, and flexible hose. It is used to connect the main vacuum pipe to the vacuum head inside the cleaning drum, transmitting suction power to the vacuum head and collecting the dust sucked up by the vacuum head into the main vacuum pipe.

[0073] 5. Clean the shunt tube section:

[0074] (1) The cleaning drum section consists of components such as drum box, lead screw nut, slider, limit switch and dust suction head. The dust suction head consists of components such as dust suction head box, lead screw, slide rail, geared motor, bearing, gear set, guide wheel, and brush.

[0075] (2) The cleaning spool section is the key component of the entire cleaning and anti-falling spool device. Its specific structural design allows objects to slide down along a predetermined trajectory after falling into the spool box, ensuring that they eventually enter the pre-prepared loading tray or other special carriers. The cleaning spool section has a self-cleaning function, and the inside of the spool box can be cleaned with a vacuum head every time material slides down.

[0076] (3) The cleaning drum section is divided into three types according to its installation position: bottom cleaning drum section, middle cleaning drum section, and material retrieval cleaning drum section. These are assembled sequentially from bottom to top to form a complete and standard cleaning anti-fall drum device. If the medicine retrieval height of the drum increases by two layers of medicine cabinet height, simply adding one middle cleaning drum section and one material retrieval cleaning drum section will meet the requirements. If the medicine retrieval height of the drum increases by one layer of medicine cabinet height, simply adding one material retrieval cleaning drum section will meet the requirements. This satisfies the medicine retrieval needs at different heights.

[0077] ① String box: The string box is the external structural box for cleaning the string section. Components such as lead screw nut, slider, limit switch and dust suction head are installed inside or outside it.

[0078] ② Screw and nut: The screw and nut are installed and fixed on the top cover of the drum box. The screw of the dust suction head drives the dust suction head to move by rotating in the screw and nut. It is the main component for moving the dust suction head in the cleaning anti-falling drum device.

[0079] ③ Slider: The slider is installed and fixed on the top of both sides of the inner wall of the drum box. The slide rails on both sides of the dust collection head pass through the slider. The slider not only guides the slide rails but also makes the slide rails move more smoothly up and down, reducing the frictional resistance when the slide rails reciprocate.

[0080] ④ Limit switches: An upper limit switch and a lower limit switch are installed at the upper and lower ends of the slider, respectively. The upper limit switch is directly installed on an L-shaped limit switch fixing piece welded to the cover of the drum box with screws; the other lower limit switch is directly installed on the inner wall of the drum box below the slider with screws. These are used to limit the travel of the vacuum head inside the drum box to prevent the vacuum head from running beyond its travel range and causing safety hazards.

[0081] ⑤. Vacuum head: The vacuum head consists of a vacuum head box, lead screw, slide rail, geared motor, bearing, gear set, guide wheel, brush and other components.

[0082] A. Dust Collection Head Box: The dust collection head box is placed inside the drum chamber, with small gaps between its sides and the inner wall of the drum chamber to facilitate the dust collection head's ability to absorb dust. The front of the dust collection head box has a zigzag-shaped dust collection box. The sides of the dust collection box and the side facing the empty interior of the drum chamber are densely covered with small suction holes. The side facing away from the empty interior of the drum chamber is connected to a telescopic suction hose. When the suction power of the dust collection device is transmitted to the dust collection box, a negative pressure is formed inside the dust collection box, drawing air and dust from the drum chamber into the dust collection box. The dust is then transported to the dust collection device through the telescopic suction hose and the main suction pipe.

[0083] B. Lead Screw: The lead screw and bearing are installed on the upper part of the vacuum head box. The cutting and narrowing end of the lead screw passes through the bearing and is then fitted into the bearing sleeve. The lead screw gear is then fitted on and fixed to the cutting and narrowing end of the lead screw with screws. At this time, the lead screw gear forms a transmission by meshing with the gear on the gear reduction motor. The other end passes through the lead screw nut. The rotation of the gear reduction motor and the transmission of the gear set drive the lead screw to rotate in the lead screw nut, which drives the vacuum head to move up and down in the vacuum head drum box. It is the main component for the movement of the vacuum head in the cleaning anti-falling drum device.

[0084] C. Slide Rail: One end of the slide rail is mounted on the vacuum head box, and the other end passes through the slider. Its function is to guide the movement of the vacuum head and reduce the frictional resistance during the reciprocating motion of the slide rail.

[0085] D. Gear motor: The gear motor is the power component for moving the vacuum head. It is installed on the motor mounting base on the upper part of the vacuum head box. Its function is to drive the lead screw to rotate through the transmission gear, thereby driving the vacuum head to move.

[0086] E. Bearing: The bearing is installed in the bearing sleeve at the top of the dust collection head box. Before installing the bearing, first install the bearing on the tapered end of the lead screw, and then put them into the bearing sleeve together. The bearing sleeve is welded and fixed to the top plate of the dust collection head box. The function of the bearing is to reduce the friction generated when the lead screw rotates.

[0087] F. Gear Set: The gear set consists of a driving gear and a driven gear. The driving gear is mounted on the output shaft of the geared motor, while the driven gear is mounted on one end of the lead screw. The geared motor drives the driven gear to rotate through the driving gear, which in turn drives the lead screw to rotate.

[0088] G. Guide wheels: The guide wheels are installed on both sides of the bottom of the trolley head box. Their function is to support the movement of the vacuum head in the tubular box and reduce the friction of the vacuum head movement.

[0089] H. Brush: The brush is installed and fixed around the vacuum head box. While the vacuum head box moves up and down, it cleans the inner wall of the drum box, removing the dust adhering to the inner wall of the drum box so that it can be sucked away by the vacuum box.

[0090] 6. Control Circuit Board: The control circuit board is mounted on the frame outside the cleaning anti-fall drum device. Its functions are: to receive instructions from the host computer system; to receive information from the limit switches; to control the rotation direction and speed of the reduction motor in the cleaning drum section; to control the opening and closing of the trolley start switch on the dust collection equipment; to report the operating status of the cleaning anti-fall drum device to the host computer system; and to report fault alarms to the host computer system. It is the control brain of the entire cleaning anti-fall drum device.

[0091] 7. Control circuit board box: The control circuit board box is installed on the frame outside the cleaning anti-falling drum device, and serves to protect the control circuit board.

[0092] II. Working Principle

[0093] 1. Equipment Combination Mode: The cleaning shunt sections can operate independently or be assembled from the bottom up, consisting of the bottom cleaning shunt section, the middle cleaning shunt section, and the material handling cleaning shunt section, to form a complete, standard cleaning and anti-fall shunt device. Under normal circumstances, it operates in combination mode. This description of the working principle follows the standard combination mode.

[0094] 2. Equipment Start-up: Connect the power supply to the cleaning anti-fall drum device. The control circuit board will control the entire equipment to perform a self-test, checking whether the dust collection head in the cleaning drum section has returned to the top for standby; and whether the electrical control pipeline switch valve is in the closed position. After the self-test is completed, the cleaning anti-fall drum device will start in standby mode. Then start the dust collection equipment and keep it running continuously.

[0095] 3. Equipment operation process:

[0096] (1) Unloading: The medicine cabinet conveyor belt conveys the medicinal materials into the clean anti-falling stringing cylinder. The medicinal materials slide down the lower wall of the stringing cylinder. Since the inlet and outlet of the upper and lower clean stringing cylinder sections are misaligned, the medicinal materials slide down in a zigzag manner and enter the loading tray received at the lower outlet.

[0097] (2) Cleaning:

[0098] After the medicine cabinet conveyor belt stops conveying, the host computer system sends a cleaning command to the control circuit board. The control circuit board controls the electrical control pipeline switch valve to open the valve. After the valve is opened, negative pressure suction is formed in the main dust collection pipeline, the telescopic dust collection hose, and the dust collection box in the dust collection head in the cleaning cylinder section.

[0099] Simultaneously, the control circuit board initiates forward rotation of the geared motor within the suction head of the cleaning drum section. The motor shaft drives the gear set, which in turn drives the lead screw to rotate in the opposite direction. This reverse rotation of the lead screw within the lead screw nut generates thrust, propelling the suction head downwards into the cleaning drum section until the limit block at the top of the slide rail contacts the upper limit switch. Upon receiving this information, the control circuit board immediately stops the geared motor, halting the suction head's movement while maintaining suction. At this point, the suction head has reached the bottom of the cleaning drum section.

[0100] Two seconds after the vacuuming operation delay, the control circuit board closes the valve of the electrically controlled pipeline and simultaneously controls the geared motor inside the vacuum head of the cleaning drum section to start rotating in reverse. The geared motor shaft drives the gear set to rotate, which in turn drives the lead screw to rotate in the forward direction. The forward rotation of the lead screw in the lead screw nut generates tension, pulling the vacuum head to move upwards in the cleaning drum section until the limit block at the top of the vacuum head touches the lower limit switch. After receiving the information sent by the lower limit switch, the control circuit board immediately controls the geared motor to stop rotating, and the vacuum head stops moving. At this time, the vacuum head has moved up to the top of the cleaning drum section.

[0101] This completes one cleaning session; we now await the next cleaning session.

[0102] The telescopic vacuum hose extends and retracts as the vacuum head moves up and down during the cleaning process, thereby adjusting the hose length to accommodate the up-and-down movement of the vacuum head.

[0103] The slide rail works in conjunction with the slider to guide the process throughout the cleaning operation.

[0104] Figure 3 The design angle of the cassette box takes into account the smoothness of the object's fall, while the structure of the cassette box takes into account its ease of cleaning.

[0105] The feed inlet connects to the conveyor belt to catch objects output from it, while the discharge outlet connects to the feed inlet of the "intermediate cleaning drum section" below, allowing objects to smoothly fall into the next drum box.

[0106] Figure 6 The middle feed inlet is connected to the discharge outlet of the "material collection and cleaning drum section" to catch objects falling from the "material collection and cleaning drum section". The discharge outlet is connected to the feed inlet of the "bottom cleaning drum section" below, and the falling objects then smoothly fall into the next drum box from here.

[0107] Figure 9 The feed inlet is connected to the discharge outlet of the "intermediate cleaning spool section" to catch objects falling from the "intermediate cleaning spool section," while the take-up outlet is used to catch objects conveyed from the conveyor belt. The discharge outlet directly discharges the material into the loading tray or other supporting equipment below.

[0108] Figure 14 The lead screw passes through the lead screw nut, which is fixed to the tremie cylinder cover with screws. The reduced-size end of the lead screw is fitted with a bearing and then placed into the bearing sleeve. Due to the bearing sleeve's limitation, the outer ring of the bearing cannot pass downwards through the sleeve, but the portion of the lead screw that passes through the bearing's inner bore can pass through the sleeve. At this point, the lead screw gear can be directly installed onto the lead screw from the lower end of the bearing sleeve. Finally, screws are passed through the mounting holes on both the lead screw gear and the lead screw to securely fix the lead screw and gear together. Because of the limitations imposed by the bearing sleeve and the lead screw gear, the lead screw cannot move up or down without removing its fixing screws and the lead screw gear. The geared motor is directly fixed to the dust collection head box with screws, and the output shaft of the geared motor is installed with the geared motor gear below, and the geared motor and geared motor are securely fixed together with screws through the mounting holes.

[0109] Figure 26 Figure 27 Figure 28 The diagram shows that in the normal state, the vacuum head is at the top of the tubing and the top of the vacuum head presses against the lower limit switch, which limits the upward movement of the vacuum head. When the vacuum head is working, it moves to the bottom of the tubing. When it moves to a certain position, the limit block outside the tubing presses against the upper limit switch on the tubing cover and triggers the upper limit switch to work, thus limiting the downward movement of the vacuum head.

[0110] Figure 29The cross-section of the lead screw's tapered end is D-shaped (corresponding to the D-shaped hole on the lead screw gear). A screw hole is drilled in the center of the plane (corresponding to the screw hole on the lead screw gear). The tapered end of the lead screw passes through a bearing and is then fitted into a bearing sleeve. The lead screw gear is then fitted onto the tapered end of the lead screw and secured to the tapered end with screws. The bearing sleeve is welded and fixed to the top plate of the dust collector box, aligned with the fixing holes on the top plate.

[0111] Figure 34 The cleaning tubing sections are placed sequentially from bottom to top onto the triangular rectangular tube support fixed on the unit medicine cabinet. The cleaning tubing sections are connected and fixed to the triangular rectangular tube support by L-shaped mounting fasteners and screws, which realizes the detachable function of the cleaning tubing sections, making it convenient for later maintenance and replacement.

[0112] Figure 38 The diagram shows that when the inner wall of the spool box needs to be cleaned, the motor starts to rotate, and the motor gear drives the lead screw gear to rotate, causing the lead screw to rotate. With the cooperation of the lead screw and lead screw nut, the rotational motion is converted into the linear reciprocating motion of the slide rails on both sides. At this time, the cleaning device moves to the bottom of the spool box, and during the movement, the dust and debris swept off by the brush around the inner wall of the spool box are immediately sucked into the vacuum head.

[0113] Figure 39 The diagram shows that when the cleaning device reaches a certain position at the bottom of the swivel box, the limit switch on the swivel box cover is triggered. The motor will immediately stop rotating and wait a few seconds until the debris at the bottom of the swivel box is cleaned. Then, the motor will immediately reverse, causing the cleaning device to return along the original route. During the return process, the vacuum head will continue to work, performing a secondary cleaning of the swivel box.

[0114] Figure 40 The diagram shows that when the cleaning device reaches a certain position at the top of the drum, the limit switch on the cleaning device is triggered, the motor will stop rotating immediately, and the entire cleaning anti-fall drum will stop working, waiting to complete the next cleaning task.

Claims

1. A cleaning and anti-falling duct device, characterized in that, The cross-sections of the material handling cleaning drum section (1), the intermediate cleaning drum section (2) and the bottom cleaning drum section (3) are all the same rectangle, set at the same angle from top to bottom, and the discharge port of the upper drum section (1) is in contact with the inlet of the lower drum section. The material handling cleaning drum section, the intermediate cleaning drum section and the bottom drum section are respectively connected to the medicine cabinet frame (19) through a detachable structure; The material handling and cleaning drum section structure is as follows: a box cover (8) is installed on the top of the rectangular box with screws, the vertical opening at the bottom of the front side panel of the rectangular box serves as the material handling port (1a), the material handling port (1a) is connected to the second layer conveyor belt (37) on the medicine cabinet shelf for material handling, the upper opening of the front side panel of the rectangular box serves as the spare material inlet (1c), a sealing plate is detachably installed on the spare material inlet, and the lower opening of the rear side panel of the rectangular box serves as the material outlet (1b). The intermediate cleaning drum section has the following structure: a box cover is installed on the top of the rectangular box with screws, the upper opening of the front side plate of the rectangular box is used as the feed port (2a), the feed port is connected to the discharge port (1b) of the material taking cleaning drum section by a sealing ring or welding, and the lower opening of the rear side plate of the rectangular box is used as the discharge port (2b). The bottom cleaning drum section structure is as follows: the top of the rectangular box is fitted with a box cover by screws, the upper opening of the front side plate of the rectangular box is used as the feed port (3c), the feed port is connected to the discharge port (2b) of the middle cleaning drum section by sealing ring or welding, the lower vertical opening of the front side plate of the rectangular box is used as the material taking port (3a), the material taking port (3a) is connected to the first layer conveyor belt (36) on the medicine cabinet shelf to take material, and the bottom horizontal opening of the rectangular box is used as the discharge port (3b); The cleaning drum section, the intermediate cleaning drum section, and the bottom cleaning drum section are all equipped with the following cleaning and dust collection mechanism in the same way: The dust collection head includes a dust collection head box, a lead screw, a slide rail, a geared motor, a bearing, a gear set, a guide wheel, and a brush; the dust collection head box (14) is placed in the inner cavity of the rectangular box and has a vertical movement gap between it and the inner cavity of the rectangular box. A slide rail (6) is fixed vertically on the left and right sides of the top plate of the dust collection head box, and the box cover has mounting holes (7) for the two slide rails to extend upward. The two slide rails form a sliding pair with the two sliders (4) fixed to the inner walls of the left and right side plates of the rectangular box, respectively. The bearing sleeve (28) is welded to the top plate of the dust collection head box, and the bearing (27) is installed in the bearing sleeve. The lead screw nut (10) is fixed on the box cover (8), and the lead screw (12) is screwed to the lead screw nut. The lead screw is vertically aligned with the top plate of the dust collection head box. A lead screw gear (30) is installed on the lower end of the bearing (27) with a D-shaped end face (12b) that passes through the inner ring from top to bottom. A geared motor (5) is installed on the top plate of the dust collection head box. A drive gear (29) is installed at the end of the geared motor shaft that extends vertically into the inner cavity of the dust collection head box. The drive gear meshes with the lead screw gear and rotates. Two guide wheels (13) are installed on the rear side plate of the dust collection head box. Brushes are installed on the front, rear, left and right side plates of the dust collection head box. Dust collection holes (14a) are densely distributed around the dust collection head box. A vacuum suction tube communicating with its inner cavity is installed on the top plate of the dust collection head box. A telescopic hose (21) connected to the vacuum suction tube extends from the top plate of the box cover (8) and connects to the dust collection device (22). It also has an upper limit switch and a lower limit switch to control the upper and lower strokes of the dust collection head box.

2. The cleaning and anti-falling duct device according to claim 1, characterized in that, A slide rail extends from the top of the box cover and is equipped with an upper limit block (11). An upper limit switch (9) is installed on the top plate of the box cover. A lower limit switch (16) is installed below the slider on the inner wall of the left side panel of the rectangular box. When the vacuum head box moves downward, the upper limit block touches the upper limit switch and the motor stops rotating. When the vacuum head box moves upward, the top plate of the vacuum head box touches the lower limit switch and the motor stops rotating.

3. A cleaning and anti-falling drum device according to claim 2, characterized in that, The upper limit switch (9) is fixed to the top plate of the box cover by an L-shaped fastener, and the lower limit switch (16) is fixed to the inner wall of the rectangular box by another L-shaped fastener.

4. The cleaning and anti-falling duct device according to claim 1, characterized in that, It also has a control circuit board (35), which is installed inside a control circuit board box (34) consisting of a cover (34a) and a body (34b), and the control circuit board box is installed on the outer wall of the intermediate cleaning spool section (2).

5. A cleaning and anti-falling duct device according to claim 1, characterized in that, The detachable structure is as follows: L-shaped fasteners are welded to the rectangular boxes of the material handling and cleaning drum section, the middle cleaning drum section and the bottom cleaning drum section respectively. Triangular rectangular tube support is installed and fixed on the medicine cabinet frame (19). The rectangular box is fixed to the triangular rectangular tube support on the medicine cabinet frame by bolts through the L-shaped fasteners.

6. A cleaning and anti-falling duct device according to claim 1, characterized in that, The guide wheel (13) is fixed to the vacuum head box by a nut (13a).

7. A cleaning and anti-falling duct device according to claim 1, characterized in that, The outlet of the dust collection equipment is connected to a rigid main pipe with a switch valve (23), and the telescopic hoses of the cleaning and dust collection mechanisms of the material handling cleaning drum section, the intermediate cleaning drum section and the bottom cleaning drum section are respectively connected to the rigid main pipe.

8. A cleaning and anti-falling duct device according to any one of claims 1 to 6, characterized in that, The upper part of the material handling and cleaning drum section is also provided with a second material handling and cleaning drum section with the same structure: the top of the rectangular box of the second material handling and cleaning drum section is fitted with a box cover by screws; the vertical material handling port of the rectangular box of the second material handling and cleaning drum section is connected to the third layer conveyor belt on the medicine cabinet shelf for material handling; the material outlet of the rectangular box of the second material handling and cleaning drum section and the material inlet of the material handling and cleaning drum section with the sealing plate removed are connected by sealing rings or welding; a cleaning and dust collection mechanism is installed in the rectangular box of the second material handling and cleaning drum section in the same way.

9. A cleaning and anti-falling drum device according to claim 8, characterized in that, A second intermediate cleaning drum section is also connected in series between the first material handling and cleaning drum section and the second material handling and cleaning drum section. The top of the rectangular box of the second intermediate cleaning drum section is fitted with a box cover by screws. The inlet of the rectangular box of the second intermediate cleaning drum section and the outlet of the second material handling and cleaning drum section are connected by sealing rings or welding. The outlet of the rectangular box of the second intermediate cleaning drum section and the inlet of the material handling and cleaning drum section are connected by sealing rings or welding. A cleaning and dust collection mechanism is installed in the rectangular box of the second intermediate cleaning drum section in the same manner.

10. An operation control method for a cleaning anti-falling drum device as described in any one of claims 1 to 7, characterized in that, Includes the following steps: (1) Equipment start-up: Connect the power supply to the cleaning anti-falling drum device, and the control circuit board controls the entire equipment to perform a self-test, checking whether the dust collection head in the cleaning drum section has returned to the top for standby; check whether the electrical control pipeline switch valve is in the closed state; after the self-test is completed, the cleaning anti-falling drum device is in standby operation; then start the dust collection equipment and keep it running continuously. (2) Equipment operation process: ① Unloading: The medicine cabinet conveyor belt conveys the medicinal materials and slices into the material picking and cleaning drum section. The medicinal materials and slices slide down the lower wall of the rectangular box in the material picking and cleaning drum section. Since the inlet and outlet of the upper and lower cleaning drum sections are staggered, the medicinal materials and slices slide down in a zigzag manner and enter the loading tray received at the lower outlet. ② Cleaning: After the medicine cabinet conveyor belt stops, the host computer system sends a cleaning command to the control circuit board. The control circuit board then controls the electrically controlled pipeline switch valve to open. Once the valve opens, negative pressure suction is created inside the telescopic hose and the suction head box inside the suction head in the cleaning drum section. Simultaneously, the control circuit board controls the geared motor inside the suction head of the cleaning drum section to start rotating forward. The geared motor shaft drives the gear set to rotate, which in turn drives the lead screw to rotate in the opposite direction. The reverse rotation of the lead screw in the lead screw nut generates thrust, pushing the suction head to move towards the lower part of the cleaning drum section until the upper limit block at the top of the slide rail touches the upper limit switch. After receiving the information sent by the upper limit switch, the control circuit board immediately controls the geared motor to stop rotating, and the suction head stops moving. The vacuuming continues; at this point, the vacuum head has moved down to the bottom of the cleaning drum section. After a 2-second delay during vacuuming, the control circuit board controls the electrical control pipeline switch valve to close the valve. Simultaneously, it controls the reduction motor inside the vacuum head of the cleaning drum section to start rotating in the reverse direction. The reduction motor shaft drives the gear set to rotate, which in turn drives the lead screw to rotate forward. Due to the forward rotation of the lead screw in the lead screw nut, a pulling force is generated, pulling the vacuum head to move upwards in the cleaning drum section until the top plate of the vacuum head box touches the lower limit switch. After receiving the information sent by the lower limit switch, the control circuit board immediately controls the reduction motor to stop rotating, and the vacuum head stops moving. At this point, the vacuum head has moved up to the top of the cleaning drum section, thus completing one cleaning operation and awaiting the next cleaning operation.

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