Compound conveying plate belt type bottom discharge bulk chinese medicine decoction piece unit medicine cabinet

Abstract

A composite conveying plate belt type bulk discharge bulk Chinese herbal pieces unit medicine cabinet belongs to an automatic medicine discharging Chinese herbal pieces medicine cabinet. A hopper assembly is composed of a hopper and an upper cover plate and is placed above a cabinet box. The upper cover plate is provided with a medicine adding door. The hopper extends into the cabinet box. A lower discharge hopper built-in stirring device, a stainless steel nail type composite conveying plate belt conveying equipment, a metering correction device, a metering pushing and overturning device and an automatic opening and closing device of a rear door are arranged in the cabinet box. The front door and the medicine adding door of the whole cabinet box are sealed by sealing strips. The metering pushing and overturning device is separately isolated by a dustproof isolation plate. A closed space is formed outside the dustproof isolation plate. Dust is extracted by an exhaust fan. The cabinet box has the characteristics of modular composition, good adaptability, prevention of dust pollution, fast medicine discharging speed, accurate medicine discharging and the like. The cabinet box can automatically and independently complete the tasks of medicine adding, medicine taking and medicine discharging.

Description

Technical Field

[0001] This invention relates to an intelligent metering and transmission device for Chinese herbal medicine slices, and in particular to a composite conveyor belt type unit cabinet for discharging bulk Chinese herbal medicine slices. Background Technology

[0002] Chinese patent documents disclose the following regarding intelligent traditional Chinese medicine cabinets: Document 1 (CN106214486): The pre-cutting mechanism on the cabinet consists of a first conveyor belt, a cutting blade, and a material chute. The cabinet contains a medicine-retrieving mechanism, a weighing mechanism, and a medicine-dispensing mechanism. It has the following functions: cutting medicinal materials → measuring medicinal materials → the medicinal materials are pushed into the receiving box by a cylinder-driven push plate. Document 2 (CN208837317): The medicine hopper is installed inside the cabinet and is driven by a drive system to slide back and forth on the first slide rail and up and down on the second slide rail. Document 3 (CN105564677): It consists of a medicine storage container, a medicine dispensing mechanism, and a weighing mechanism arranged from top to bottom.

[0003] The Chinese medicine cabinets mentioned in the above literature cannot be considered as independent entities, and none of them have the function of automatically and intelligently completing the tasks of adding, retrieving, and dispensing medicine. Summary of the Invention

[0004] The purpose of this invention is to provide a modular, fast and accurate dispensing unit for bulk Chinese herbal medicine slices that integrates the functions of adding, retrieving, and dispensing medicine, eliminates dust pollution, and is modular in design.

[0005] The objective of this invention is achieved as follows: a composite conveyor belt type bottom-discharge bulk Chinese herbal medicine cabinet, wherein the cabinet consists of a cabinet box and a hopper assembly. The hopper assembly is integrally formed by the hopper and the top cover plate. The top cover plate of the rectangular box is fastened to the upper end face of the top opening of the cabinet box. The hopper extends into the inner cavity of the cabinet box. A medicine dispensing door with side baffles on both sides is hinged to the medicine dispensing port at the front of the top cover plate. A baffle box for inserting the side baffle of the medicine dispensing door when the medicine dispensing door is closed is fixed to the inner side wall of the medicine dispensing port of the top cover plate with rivets. The front door of the cabinet is set at the door hinge. At the front of the cabinet, the rear door for dispensing medicine is set on the rear panel of the cabinet. The rear panel of the cabinet is equipped with an automatic opening and closing device for the rear door: the rear door consists of an upper sealing plate and a lower sealing plate that are hinged to each other. The upper end of the upper sealing plate is hinged to the rear panel above the medicine outlet of the rear door. The motor is mounted on the rear panel above the medicine outlet of the rear door via a motor mount. Limit switches and reset switches are installed on a vertical plate that is integrated with the motor mount and perpendicular to the rear panel. A toggle plate for touching the limit switches and reset switches is mounted on the motor shaft. One end of the connecting rod is hinged to the toggle plate, and the other end of the connecting rod is hinged to the upper sealing plate. The built-in stirring device in the lower discharge hopper is inclined and located above the lower opening of the hopper. Its structure is as follows: A cylindrical driven shaft is fixedly connected at an incline to the horizontal direction on the inner wall of the rear side of the lower opening of the hopper. An electric drive mechanism is installed on the outer wall of the front side of the lower opening of the hopper: a bearing housing with bearings is fixed on the outer wall of the hopper, the motor is mounted on the cabinet or the outer wall of the hopper via a fixing plate, the motor shaft is mounted on the bearing at the same inclination angle as the driven shaft, and the drive shaft is fixed to the motor shaft located on the same axis as the drive shaft via a flat key. The drive shaft extends from the outside to the inside through the opening of the hopper into the inner cavity of the hopper. The drive shaft and bearing housing are fitted with a sealing ring; the tooth-shaped stirring shaft is movably mounted on the driven shaft through a circular blind hole on its left end face and on the square head of the drive shaft through a square hole on its right end face; the motor speed is 80 rpm, the inclination angle of the driven shaft is -15° to -30°, and the tooth-shaped stirring shaft structure is as follows: four stirring rods (upper, lower, left, and right) are fixed on the shaft as a group, and several groups of stirring rods are evenly distributed on the shaft along the axis; the sealing ring is a silicone sealing ring. A stainless steel nail-type composite conveyor belt is installed parallel to the above-mentioned mixing device on the lower opening of the hopper: the drive wheel is a columnar body with a flange on both end faces; the reduction motor consists of a motor and a reducer, the reduction motor is installed on the vertical section on the outer side of the left side plate, the D-shaped inner hole on the left end face of the drive wheel is fixed to the output shaft of the reduction motor, the shaft on the right end face of the drive wheel is mounted on the right side plate via a bearing, the right side plate is the same shape as the left side plate and is symmetrically arranged, a support wheel assembly composed of multiple support wheels is installed and fixed between the left and right side plates, the top height of the multiple support wheels is the same as the top height of the drive wheel and they are all in a horizontal position, each support wheel structure is: the shaft pin is installed on two needle roller shafts inside the cylinder, the right end of the shaft pin extending out of the cylinder has a disc for locking in the hole on the left side plate, the left end of the shaft pin extending out of the cylinder has a groove for locking with a snap ring; the rotating shaft located below the support wheel assembly is rotatably arranged between the rear of the left and right side plates; The driven wheel structure is as follows: A flange is present on both end faces of the cylinder. The driven wheel shaft is mounted on two bearings inside the cylinder. The two outer ends of the driven wheel shaft extending out of the cylinder have slots, and retaining springs are secured in these slots. The driven wheel assembly consists of a driven wheel rotatably mounted between two identical driven wheel left and right side plates. Another support wheel is movably positioned between the left and right side plates of the driven wheel. The left and right side plates of the driven wheel are fixed to the rotating shaft. When the driven wheel assembly is not fixed and is in a free-hanging state, the stainless steel nail-type or baffle-type composite conveyor belt can be fitted onto the driving wheel and the driven wheel. When the driven wheel assembly is raised to a horizontal position, positioning screws are used to fix the left and right side plates of the driven wheel to the left and right side plates respectively, thus putting the conveying equipment in a ready-to-work state. A main intermediate beam is also fixed to the lower position of the support wheel assembly between the left and right sides of the driven wheel by fixing screws; a secondary intermediate beam is also fixed to the lower position of the other support wheel between the left and right sides of the driven wheel by screws. The secondary intermediate beam is equipped with a scraper for scraping off the Chinese herbal medicine residue attached to the inner surface of the composite conveyor belt. The lower part of the left and right side plates is also fixed with a slag tray for collecting the slag scraped off by the scraper. The left and right side plates of the driven wheel are provided with slag discharge ports near the scraper position. The left side plate is a bent plate with a horizontal leftward section, a vertical downward section, and a horizontal rightward section; the top horizontal sections of the left and right side plates are also respectively fixed with clips by screws. These clips are used to press onto the stainless steel nail-type or baffle-type conveyor belt to prevent the Chinese herbal medicine pieces from leaking out of the composite conveyor belt. The left and right sides of the driven wheel are equipped with screws to install stop teeth at the discharge end. The lower part of the strip-shaped body has a row of toothed grooves for the corresponding steel nails on the stainless steel nail-type composite conveyor belt to pass through, and the concave arc surface of the lower front edge of the body is similar to the running trajectory of the top of the steel nail. The stainless steel nail-type composite conveyor belt structure is as follows: the two wide sides of the steel belt are set at the same angle to the two parallel long sides, and the two wide sides are parallel to each other. Several rows of holes are evenly spaced along the long side of the steel belt, with small square holes and large square holes alternating in each row. The two wide sides of the steel belt are aligned and laser-welded together. The lower stop bar structure is as follows: small square holes and large square heads are evenly spaced and alternating on the surface of the bar, and one or more grooves are opened at the bottom of the bar. A lower stop bar is set at each row of holes in the steel belt: the large square heads on the lower stop bar pass through the corresponding large square holes in the row of holes on the steel belt. The steel nails are composed of small square heads and large square heads integrated into one piece, and multiple steel nails are present. The small square heads, one by one from top to bottom, pass through the small square holes in the corresponding row of holes on the steel strip and are inserted into the small square holes on the lower stop bar, and are laser welded together with the lower stop bar to form a welded part; a PU silicone layer (504) or a rubber layer covers and fixes the bottom surface of the steel strip with the lower stop bar to form a composite conveyor belt; the steel strip, the lower stop bar, and the steel nails are all made of food-grade 304 stainless steel or food-grade 316 stainless steel; each row of holes on the steel strip has an odd number of holes, starting from and ending with a small square hole; the large square heads of the steel nails have the same shape as the large square heads on the lower stop bar, both being cubic; the thickness of the steel strip is 0.1mm to 0.2mm, and the thickness of the PU silicone layer is 1mm to 10mm; The metering, pushing, and turning device for collecting the output of the aforementioned transmission equipment is installed on the bottom plate of the cabinet. Its structure is as follows: the motor is mounted on the rear right side of a rectangular base via a motor mount; the motor shaft is connected to a T-shaped lead screw via a coupling; a T-shaped flange nut is screwed onto the T-shaped lead screw; a linear slide rail is located to the left of the T-shaped lead screw and is parallel to it; the slider slides in cooperation with the linear slide rail; the limit and reset lever is composed of an integrated horizontal plate and a vertical plate. The horizontal plate is fixed to the slider with screws, and the vertical plate is fixed to the flange of the T-shaped flange nut with four bolts. The rightward extension of the vertical plate serves as the trigger for the limit and reset touch switches. The limit and reset touch switches are respectively... Installed on supports corresponding to the end and start positions of the flange nut, the rectangular weighing pan rotating plate has three rubber-coated bearings installed around its bottom perimeter that can roll along the grooves on the base. The left front part of the weighing pan rotating plate extends upward to form an ear plate. An electronic scale sensor is installed on the top surface of the middle part of the weighing pan rotating plate. The weighing pan is fixed to the electronic scale sensor with screws. A spur gear of 1 / 4 part is installed and fixed on the rotating shaft. The right end of the rotating shaft is fixed to the inner ring of the bearing. The bearing is fixed in the bearing housing. The bearing housing is fixed to the slider with screws. The left end of the rotating shaft is movably mounted on the shaft hole of the ear plate. A rack used to mesh with the gear to make the weighing pan rotate 90° is installed in the middle of the front part of the base. A metering calibration device is installed above the weighing pan along the left-right direction of the hopper: a geared motor is mounted on a motor base, and a spring winding bar and a weight wire winding device are sequentially fixed to the geared motor shaft from left to right along the same axis. The spring wire is wound along the spring wire groove of the spring winding bar, and the weight wire is wound along the weight wire groove of the weight wire winding device, with the winding direction of the spring wire being opposite to that of the weight wire. The motor base is fixed to the top plate of the base, and a weight reset device is fixed at the position of the weight wire on the bottom surface of the top plate of the base. The fixed base, or weight reset fixed base, is a conical cylinder, wider at the bottom and narrower at the top, designed to allow weights to enter from below while preventing them from passing through. The top plate of the base has a circular hole of the same size as the opening at the top of the conical cylinder. A weight wire guide ring is fixed to the top plate of the base by screws. The weight wire passes downwards along the weight wire reel, sequentially through the weight wire guide ring, the circular hole on the top plate of the base, and the lower end of the weight reset fixed base, and is fixedly connected to a weight used for calibration. A spring reel is mounted on the top plate of the base. On a vertical plate fixed to the bottom surface, a pulley is fixed to the vertical plate; the left end of the spring plate is fixed to the bottom surface of the top plate of the base by screws; the mainspring wire passes vertically downward along the mainspring wire winding bar, passing through the through hole in the top plate of the base and the lower end of the small hole on the right end of the spring plate, then around the pulley and connecting to the mainspring of the mainspring disc in a horizontal left direction; a weight positioning touch switch and a weight reset touch switch are installed on the bottom surface of the top plate of the base; a hole is provided on the mainspring wire located below the spring plate that cannot pass through the small hole on the right end of the spring plate. The weighing pan is positioned directly below the weights. Under forward drive of the motor, as the weights descend with the weight line and fall onto the weighing pan, the positioning section of the spring wire rises and triggers the weight positioning switch by lifting a spring plate, stopping the motor. Under reverse drive of the motor, as the weights descend with the weight line and enter the weight reset holder, simultaneously triggering the weight reset switch, the motor stops. At the same time, the spring wire descends under the tension of the spring, and the positioning section of the spring wire resets.

[0006] A vertical plate is fixedly connected to the left and right side ends or outer wall of the lower opening of the hopper, and a horizontal lower limit strip is fixedly connected to the lower end of the two vertical plates. The stainless steel nail-type composite conveyor belt drive is fixed to the slot of the lower limit strip by the card strip sleeve on it, and the two are locked by screws through the locking hole on the lower limit strip. It also has a limited dispensing mechanism for Chinese herbal medicine slices: the shaft of the pressure roller is mounted up and down on the strip holes of two vertical plates, the upper end of the spring plate is fixed to the outer wall of the hopper, and the lower end is pressed onto the pressure roller.

[0007] The stainless steel nail-type composite conveyor belt drive equipment is equipped with a discharge cover at the rear end for the discharge material to fall into the weighing pan of the metering and pushing flipping device; the hopper assembly is fixed to the cabinet by multiple positioning pins on the lower end face of the left and right sides of the upper cover plate, which are respectively inserted into the positioning groove on the top end face of the cabinet, and then bolts are used to fix the hopper to the cabinet through the fixing holes on the cabinet.

[0008] The dosing door is formed by an inner sealing plate fixed to the outer shell. An electric lock is installed at the front of the inner sealing plate, and a latch matching the electric lock is installed on the inner wall of the front opening of the cabinet. The rear end of the dosing door is provided with two arc-shaped springs for opening the dosing door when the electric lock is open. The springs are made of strip plates bent into shape and are composed of a first straight segment, an arc segment and a second straight segment connected in sequence. The first straight segment is fixed to the bottom surface of the dosing door with screws, and the second straight segment is freely abutted against or fixed to the bottom surface of the upper cover plate.

[0009] The cabinet is equipped with a medicine shortage indicator light and a fault indicator light on the front door. A cabinet door lock is installed on the inner wall of the front opening of the cabinet. A latch for use with the cabinet door lock is installed on the inner surface of the cabinet door. A keyhole for opening the cabinet door lock with a key is provided on the cabinet door.

[0010] The cabinet has a control board box installed on the inside of the front door, ventilation holes on the front door, and pluggable terminals and wire troughs on the side panel.

[0011] The cabinet is equipped with a D-shaped sealing strip on the dosing port corresponding to the dosing door, and a sealing strip on the opening at the top of the cabinet adjacent to the dosing port; a sealing gasket is provided on the inner sealing plate of the dosing door, and a sealing brush strip is provided on the top end face of each of the two baffle boxes to allow the side baffles to pass through; a sealing gasket is provided on the front opening of the cabinet to seal the front door; a dregs box and a dregs bag are sequentially arranged at the front of the stainless steel nail-type composite transmission belt conveyor, an air inlet is provided on the rear panel of the cabinet, and an exhaust fan with exhaust through a heat dissipation and exhaust hole is installed on the inner surface of the inclined front panel or the lower inner surface of the front door; a dustproof isolation plate is provided in the inner cavity of the cabinet to isolate the metering push-turning device separately.

[0012] Compared with the prior art, the present invention has the following technical features and advantages: 1. Independence: Each unit of medicine cabinet is an independent entity. As long as it is connected to an external power source and communication network, it can independently complete the tasks of adding, retrieving, and dispensing medicine.

[0013] 2. One-click connection mode: The cable trays on the cabinet are reserved channels for connecting the unit medicine cabinet to the power cord and communication line outside the cabinet. The unit medicine cabinet can be connected to the power and communication through the plug-in terminals in the cable trays.

[0014] 3. Adaptability: By using different hoppers, bottom discharge and discharging devices and stirring devices, it can adapt to changes in the shape and density of medicinal materials and complete the extraction of different medicinal materials.

[0015] 4. Modular Design: All devices within the unit medicine cabinet, such as the dispensing and retrieving device, stirring device, metering pusher and tilter, metering calibration device, rear door device, dosing door, and front door, adopt a modular design, possessing relatively independent functions. If a device malfunctions, it can be replaced individually, thus achieving rapid replacement and maintenance. In particular, the locking strip of the dispensing and retrieving device engages with the slot on the hopper, using locking screws and locking holes to fix the two components in place, enabling quick assembly, disassembly, and positioning of the dispensing and retrieving device.

[0016] 5. Good sealing: The unit medicine cabinet is an independent space, and all seams are sealed. The opening and closing interfaces of frequently opened devices such as the medicine door, front door, back door, and top cover are all sealed with rubber strips, making the unit medicine cabinet a closed space with a good mosquito and insect prevention effect.

[0017] 6. Precise Dispensing: The bottom-dispensing medicine-collecting device uses a specially designed composite conveyor belt. Through careful design of the width of the composite conveyor belt, the height and size of the steel teeth, and the upward slope of the bottom-dispensing medicine-collecting device, and with the action of the pressure roller assembly, excess medicinal materials are blocked in the hopper. This ensures that the bottom-dispensing medicine-collecting device can only take out a certain amount of medicinal materials during the medicine-collecting process, thus achieving the purpose of accurate medicine collection. Moreover, the pressure roller assembly can be adjusted up and down during the medicine-collecting process, which can effectively prevent material jamming.

[0018] 7. Fast dispensing speed: Select a high-torque brushless DC motor, and the composite conveyor belt can carry out a large amount of medicinal materials in one revolution.

[0019] 8. Prevent material bridging: The operation of the stirring device inside the hopper prevents the medicinal materials from forming material bridging as they slide down, allowing them to slide smoothly along with the dispensing device.

[0020] 9. Self-cleaning capability: The inside of the bottom-discharge medicine-collecting device is designed with a cleaning scraper, which can sweep the medicine residue and dust adhering to the inside of the composite tape through the residue inlet into the residue cover, and finally accumulate in the residue bag. Only periodic cleaning of the residue in the residue bag is required.

[0021] 10. Excellent heat dissipation: The front door of the cabinet has ventilation mesh holes corresponding to the control panel, ensuring heat dissipation of the control panel; the rear of the cabinet has air intake mesh holes with dustproof mesh, and the front of the cabinet has heat dissipation exhaust mesh holes with exhaust fans installed on the mesh holes. When the exhaust fan is running, fresh air enters from the rear air intake mesh holes of the cabinet, carrying away the heat generated by the intermediate motor, and then the hot air is exhausted by the exhaust fan, thereby achieving the purpose of heat dissipation.

[0022] 11. The operating status of the unit medicine cabinet is obvious: the operating status of the unit medicine cabinet can be judged by observing the color of the medicine shortage indicator and the fault indicator on the front door of the cabinet.

[0023] 12. Advantages of modular unit medicine cabinets: Modular unit medicine cabinets separate the hopper from the cabinet body. The hopper positioning pins on the hopper match the hopper positioning slots on the cabinet body for positioning and assembly, and are then secured to the hopper via fixing holes on the cabinet body. Therefore, the hopper and cabinet body are easy to assemble and disassemble, allowing for easy replacement of other types of hoppers without changing the cabinet body.

[0024] 13. Preventing spillage during drug addition: Side baffles are installed on both sides of the drug addition door to prevent medicinal materials from accidentally falling outside the hopper during the drug addition process; the side baffles of the drug addition door are inserted into the side baffle box of the drug addition door, and a sealing brush strip is installed inside the side baffle box to prevent medicinal materials from accidentally falling into the side baffle box.

[0025] 14. Prevention of contamination: The control panel is covered with a control panel box, which isolates the control panel from the internal space of the cabinet, preventing the dust from the medicine inside the cabinet from contaminating the control panel. Some unit medicine cabinets may generate a lot of medicine dust during the dispensing process, which may contaminate the inside of the unit medicine cabinet. To prevent this dust contamination, a dustproof isolation panel (or dustproof isolation mesh) can be installed to divide the inside of the cabinet into two areas: the upper area is the heat dissipation area and the lower area is the medicine dispensing area. This reduces the space for medicine dust contamination. The two areas are isolated from each other and do not affect each other. The medicine dust generated in the dispensing area, which generates more medicine dust, will not contaminate the heat dissipation area. The dispensing area should be cleaned regularly during use.

[0026] 15. Manual unlocking: The electric locks of the cabinet front door and the dosing door are designed with a manual mechanical unlocking part. In the event of failure of the electric lock, the cabinet front door and the dosing door can be opened manually. Attached Figure Description

[0027] Figures 1-4 These are 3D diagrams of a straight-unit medicine cabinet, a slanted-opening unit medicine cabinet, a split-type straight-unit medicine cabinet, and a split-type slanted-opening unit medicine cabinet.

[0028] Figure 5 This is the present invention. Figure 4 A 3D view of the medicine cabinet shown.

[0029] Figure 6 , Figure 7 yes Figure 5 The cabinet shown is in 3D view (open and closed).

[0030] Figure 8 yes Figure 5 The diagram shows a three-dimensional view of the drug administration gate.

[0031] Figure 9 yes Figure 5The diagram shows the equipment configuration inside the unit's medicine cabinet.

[0032] Figure 10 , Figure 11 They are Figure 9 The hopper assembly is shown in three-dimensional views from different perspectives.

[0033] Figure 12 yes Figure 9 The diagram shows a mixing device and a stainless steel nail-type composite plate belt drive (hereinafter referred to as the drive device) installed on the hopper.

[0034] Figure 13 yes Figure 12 A perspective view of the baffle box shown.

[0035] Figure 14 yes Figure 12 An enlarged view of the feeding gate shown.

[0036] Figure 15 yes Figure 9 A schematic diagram of the mounting components for the pressure roller assembly is shown.

[0037] Figure 16 yes Figure 15 Enlarged view of part D.

[0038] Figure 17 This is a schematic diagram of the mixing device installed on the hopper.

[0039] Figure 18 yes Figure 17 Enlarged view of part C.

[0040] Figure 19 yes Figure 9 The diagram shows a quick installation of the hopper assembly on the cabinet.

[0041] Figure 20 yes Figure 19 Enlarged view of part B.

[0042] Figure 21 , Figure 22 These are schematic diagrams showing the rapid installation of the transmission equipment on the hopper.

[0043] Figure 23 yes Figure 21 Enlarged view of part A shown (3:1).

[0044] Figure 24 , Figure 25 These are schematic diagrams showing the rear door (consisting of an upper and lower sealing plate) with and without a motor cover.

[0045] Figure 26 yes Figure 25 Enlarged view of part E.

[0046] Figure 27 This is a diagram showing the back door in the open position.

[0047] Figure 28 , Figure 29 They are Figure 4 and Figure 3 The diagram shows a dustproof isolation panel installed inside the medicine cabinet.

[0048] Figure 30 This is a 3D view of a stainless steel nail-type composite plate belt drive equipment.

[0049] Figure 30a This is a three-dimensional view of the driven wheel after it has been cut open.

[0050] Figure 30b This is a cross-sectional view of the support wheel.

[0051] Figure 30c This is a three-dimensional view of the driven wheel assembly in a naturally drooping state around the rotation axis (so that the composite conveyor belt can be fitted onto it).

[0052] Figure 30d This is a three-dimensional view of the driven wheel assembly rotating clockwise from its drooping position to a horizontal position (flush with the conveyor belt on the driving wheel assembly).

[0053] Figure 31 , Figure 32 , Figure 33 They are Figure 30 The front view, top view, and left view.

[0054] Figure 34 yes Figure 31 Cross-sectional view along line BB.

[0055] Figure 35 yes Figure 30 A cross-sectional view.

[0056] Figure 36 yes Figure 34 Enlarged view of part A.

[0057] Figure 37 This is a structural diagram of the built-in stirring device (hereinafter referred to as the stirring device) in the lower discharge hopper.

[0058] Figure 38 This is a 3D view of the metering, pushing, and flipping device.

[0059] Figure 39 yes Figure 38 A 3D view of the weighing pan after it has been installed.

[0060] Figure 39a yes Figure 39 The image shows a 3D view of the weighing pan after it has been flipped over.

[0061] Figure 40 yes Figure 9 A three-dimensional view of the metering calibration device shown.

[0062] Figure 41 yes Figure 40 The main view.

[0063] Figure 42 yes Figure 41 The diagram shows the weights descending into the weighing pan of the metering and flipping device. Detailed Implementation

[0064] In the attached diagram: 6 rivets on the top cover, 16 hinge holes, 53 motor cover, 42 exhaust fan, and 43 heat dissipation vents (both installed on...). Figure 1 Figure 3 (On the front door rear panel of the cabinet shown), there is a quick-locking hole 2030, a fixing ring 11 (to prevent axial movement of the rotating shaft), and a vertical plate 3015.

[0065] Unit medicine cabinets are divided into: straight unit medicine cabinets, slanted unit medicine cabinets, split straight unit medicine cabinets, and split slanted unit medicine cabinets.

[0066] composition: 1. The plate belt type bottom discharge unit cabinet consists of a cabinet box, hopper, bottom discharge and drug dispensing device, stirring device, metering pushing and turning device, metering calibration device, front door, drug dosing door, and rear door device. Each device is equipped with different types of motors and other electrical facilities.

[0067] 2. The cabinet consists of the cabinet body, front door lock, hopper positioning groove, wire groove, plug-in terminal block, fixing pin, front door rubber gasket seal, etc.

[0068] 3. The hopper consists of the hopper body, hopper top cover plate, left and right dosing door side baffle boxes, dosing door side baffle sealing brush strips, dregs box, hopper positioning pins, dosing door D-shaped sealing strips, top cover plate sealing strips, medicine dispensing device slots, pressure roller assembly, pressure roller spring plates, etc.

[0069] 4. The cabinet front door consists of a cabinet front door panel, control panel box, cabinet front door latch, low medicine indicator light, fault indicator light, etc. It has control panel heat dissipation mesh and electric lock manual unlocking hole.

[0070] 5. The dosing door consists of a dosing door shell, a dosing door inner sealing plate, a dosing door side baffle, a dosing door arc spring plate, and a dosing door electric lock.

[0071] 6. The rear door device consists of a motor cover, motor base, motor, sensor actuation disc, connecting rod, rear door limit sensor, rear door reset sensor, upper rear door sealing plate, and lower rear door sealing plate.

[0072] Figure 9The illustration shows a composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet. The unit cabinet consists of a cabinet box 1 and a hopper assembly. The hopper assembly is integrally formed by a hopper 5 and a top cover 7. The top cover of the rectangular box is fastened to the upper end face of the top opening of the cabinet box. The hopper extends into the inner cavity of the cabinet box. A medicine dispensing door 8 with side baffles 26 is hinged to the medicine dispensing port at the front of the top cover. A baffle box 9 for inserting the side baffle of the medicine dispensing door when the medicine dispensing door is closed is fixed to the inner side wall of the medicine dispensing port on the left and right sides by rivets 38. The front door 13 is set at the front of the cabinet box via a door hinge 19, used for... The rear door of the medicine is located on the rear panel of the cabinet. The rear panel of the cabinet is equipped with an automatic rear door opening and closing device 30: the rear door consists of an upper sealing plate 56 and a lower sealing plate 57 that are hinged to each other. The upper end of the upper sealing plate is hinged to the rear panel above the medicine outlet of the rear door. The motor 54 is installed on the rear panel above the medicine outlet of the rear door via a motor base 55. A limit switch 60 and a reset switch 61 are installed on a vertical plate that is integrated with the motor base and perpendicular to the rear panel. A toggle plate 58 used to touch the limit switch and the reset switch is installed on the motor shaft. One end of the connecting rod 59 is hinged to the toggle plate, and the other end of the connecting rod is hinged to the upper sealing plate. When the control system controls the rear door to open, the motor drives the actuation disc to rotate. The actuation disc drives the connecting rod to push outward, which in turn pushes the upper and lower rear door sealing plates open. After opening to a certain angle, the actuation disc touches the rear door limit sensor, and the motor stops rotating. At this time, the rear door is in the open state. When the control system controls the rear door to close, the motor drives the actuation disc to rotate backward, which in turn pulls the connecting rod inward. The connecting rod pushes the upper and lower rear door sealing plates close, and the lower and upper rear door sealing plates close. The actuation disc touches the rear door reset sensor, and the motor stops rotating.

[0073] The built-in stirring device 100 of the lower discharge hopper is inclinedly arranged above the lower opening of the hopper, and its structure is as follows: A cylindrical driven shaft 108 is fixedly connected to the inner wall of the lower opening of the hopper 101 at an incline to the horizontal direction. An electric drive mechanism is provided on the outer wall of the lower opening of the hopper 101: a bearing seat 104 with a bearing 105 is fixed to the outer wall of the hopper; a motor 102 is mounted on the cabinet or the outer wall of the hopper via a fixing plate 107; the motor shaft is mounted on the bearing 105 at the same inclination angle as the driven shaft; and a drive shaft 103 is fixed to the motor shaft located on the same axis as the drive shaft via a key. The drive shaft passes through the hopper from the outside to the inside. The opening extends into the inner cavity of the hopper, and a sealing ring 106 is provided between the drive shaft and the bearing seat; the tooth-type stirring shaft 109 is movably fitted onto the driven shaft through a circular blind hole on its left end face and fitted onto the square head of the drive shaft through a square hole on its right end face; the motor speed is 80 rpm, the inclination angle of the driven shaft is -15° to -30°, and the structure of the tooth-type stirring shaft 109 is as follows: four stirring rods (upper, lower, left, and right) are fixed on the shaft as a group, and several groups of stirring rods are evenly distributed on the shaft along the axis; the sealing ring is a silicone sealing ring; A stainless steel nail-type composite conveyor belt conveyor 200 is installed parallel to the above-mentioned mixing device at the lower opening of the hopper: the drive wheel 204 is a columnar body with a flange on both end faces; the reduction motor consists of a motor 201 and a reducer 202, the reduction motor is installed on the vertical section outside the left side plate 2016, the D-shaped inner hole 205 on the left end face of the drive wheel is fitted and fixed on the output shaft 203 of the reduction motor, the shaft on the right end face of the drive wheel is mounted on the right side plate 2021 via a bearing 2020, the right side plate and the left side plate are the same shape and symmetrically arranged, and a support wheel group composed of multiple support wheels. Component 2018 is installed and fixed between the left and right side plates 2016 and 2021. The top height of multiple support wheels is the same as the top height of the drive wheel and they are all in a horizontal position. The structure of each support wheel 2010 is as follows: the axle pin 2012 is installed on two needle roller shafts 2011 inside the cylindrical body 2010. The right end of the axle pin extending out of the cylindrical body has a disc for locking onto the hole in the left side plate 2016. The left end of the axle pin extending out of the cylindrical body has a groove for locking onto the retaining spring 2013. The rotating shaft 2019 located below the support wheel assembly is rotatably disposed between the rear of the left and right side plates. The driven wheel 206 has the following structure: a flange is present on both end faces of the cylinder; the driven wheel shaft 207 is mounted on two bearings 208 inside the cylinder; the driven wheel shaft has slots on both outer ends extending from the cylinder; and a retaining spring 209 is secured in the slots. The driven wheel assembly consists of a driven wheel rotatably mounted between a left and right side plate 2025 of the same shape; another support wheel is movably positioned between the left and right side plates of the driven wheel; the left and right side plates of the driven wheel are fixed to the rotating shaft. When the driven wheel assembly is not fixed and is in a free-hanging state, the stainless steel nail-type or baffle-type composite conveyor belt 2029 can be fitted onto the driving wheel and the driven wheel. When the driven wheel assembly is raised to a horizontal position, positioning screws 2026 are used to fix the left and right side plates of the driven wheel to the left and right side plates respectively, so that the conveying equipment is in a ready-to-work state. A main intermediate beam 2017 is fixed to the lower position of the support wheel assembly 2018 between the left and right sides of the plate by fixing screws 2022; a secondary intermediate beam 2023 is also fixed to the lower position of another support wheel between the driven wheel left side plate and the driven wheel right side plate by screws. The secondary intermediate beam is equipped with a scraper 2032 for scraping off the Chinese herbal medicine residue attached to the inner surface of the composite conveyor belt. The lower part of the left and right side plates is also fixed with a slag tray 2028 for collecting the slag scraped off by the scraper. The left and right side plates of the driven wheel are each provided with a slag discharge port 2033 near the scraper position. The left side plate is a bent plate with a horizontal leftward section, a vertical downward section, and a horizontal rightward section; the top horizontal sections of the left and right side plates are also respectively fixed with locking strips 2027 by screws. These locking strips are used to press onto the stainless steel nail-type or baffle-type conveyor belt to prevent the Chinese herbal medicine pieces from leaking out of the composite conveyor belt. The left and right sides of the driven wheel are equipped with screws to install stop teeth 2014 at the discharge end position. The lower part of the strip-shaped body has a row of toothed grooves for the corresponding steel nails 503 on the stainless steel nail composite conveyor belt to pass through, and the concave arc surface of the lower front edge of the body is similar to the running trajectory 2015 of the top of the steel nail. The stainless steel nail-type composite conveyor belt structure is as follows: the two wide sides of the steel belt 501 are set at the same angle to the two parallel long sides, and the two wide sides are parallel to each other. Several rows of holes are evenly spaced along the long side of the steel belt, with small square holes and large square holes alternating in each row. The two wide side seams of the steel belt are aligned and laser-welded together. The lower stop bar 502 structure is as follows: small square holes and large square heads are evenly spaced and alternating on the surface of the bar, and one or more grooves are opened at the bottom of the bar. A lower stop bar is set at each row of holes in the steel belt: the large square heads on the lower stop bar pass through the corresponding large square holes in the row of holes on the steel belt. The steel nail is composed of small square heads and large square heads integrated together. Multiple steel nails... The small square heads of nails 503 are inserted one-to-one from top to bottom through the small square holes in the corresponding row of holes on the steel strip and then inserted into the small square holes on the lower stop bar, and are laser welded together with the lower stop bar to form a welded part 505; a PU silicone layer 504 or a silicone layer covers and fixes the bottom surface of the steel strip with the lower stop bar to form a composite conveyor belt; the steel strip, the lower stop bar and the steel nails are all made of food-grade 304 stainless steel or food-grade 316 stainless steel, each row of holes on the steel strip has an odd number of holes, and starts with a small square hole and ends with a small square hole, the large square heads of the steel nails have the same shape as the large square heads on the lower stop bar, both being cubic; the thickness of the steel strip is 0.1mm to 0.2mm, and the thickness of the PU silicone layer is 1mm to 10mm; The metering, pushing, and turning device 400 for collecting the output of the aforementioned transmission equipment is installed on the bottom plate of the cabinet. Its structure is as follows: a motor 401 is mounted on the rear right side of a rectangular base 4014 via a motor mount 402; the motor shaft is connected to a T-shaped lead screw 408 via a coupling 404; a T-shaped flange nut 405 is screwed onto the T-shaped lead screw; a linear slide rail 4012 is located to the left of the T-shaped lead screw and parallel to it; a slider 403 slides with the linear slide rail; and a limit / reset lever 407 is composed of an integrated horizontal plate and a vertical plate. The horizontal plate is fixed to the slider with screws, and the vertical plate is fixed to the flange of the T-shaped flange nut with four bolts. The rightward extension of the vertical plate serves to activate the limit switch 409 and the reset switch 406. The touch switch 406 is installed on the support at the end position and the support at the beginning position corresponding to the flange nut. Three rubber-coated bearings 4017 that can roll along the groove on the base are installed around the bottom of the rectangular weighing pan rotating plate 4018. The left side of the front part of the weighing pan rotating plate extends upward to form an ear plate. An electronic scale sensor 4019 is installed on the top surface of the middle part of the weighing pan rotating plate. The weighing pan 4020 is fixed to the electronic scale sensor with screws. The spur gear 4015 of 1 / 4 part is installed and fixed on the rotating shaft. The right end of the rotating shaft is fixed on the inner ring of the bearing. The bearing is fixed in the bearing seat. The bearing seat is fixed on the slider with screws. The left end of the rotating shaft is movably mounted on the shaft hole of the ear plate. The rack 4013, which is used to mesh with the gear 4015 to make the weighing pan rotate 90°, is installed in the middle of the front part of the base. A metering calibration device 300 is installed above the weighing pan 4020 along the left-right direction of the hopper: a reduction motor 301 is mounted on a motor base 302; a spring winding bar 304 and a weight wire winding device 305 are sequentially fixed to the shaft of the reduction motor 301 from left to right along the same axis; the spring wire 3012 is wound along the spring wire groove 3019 of the spring winding bar, and the weight wire 309 is wound along the weight wire groove 3020 of the weight wire winding device, with the winding direction of the spring wire opposite to that of the weight wire; the motor base is fixed to the top plate of the base 303, and the top of the base... A weight reset fixing seat 308 is fixed on the bottom surface of the plate directly opposite the position of the weight line. The weight reset fixing seat is a conical cylinder with a smaller top and a larger bottom, designed to allow the weight 3010 to enter from bottom to top while preventing it from passing through. A circular hole of the same size as the opening at the top of the conical cylinder is opened on the top plate of the base. A weight line guide ring 3024 is fixed to the top plate of the base by screws. The weight line passes down along the weight line reel in sequence through the weight line guide ring, the circular hole on the top plate of the base, and the lower end of the weight reset fixing seat, and a weight 3010 for measurement calibration is fixedly connected thereto. The mainspring 3014 is mounted on a vertical plate 3015 fixed to the bottom surface of the top plate of the base. A pulley 3011 is fixed to the vertical plate 3015. The left end of the spring plate 3013 is fixed to the bottom surface of the top plate of the base by screws. The mainspring wire passes vertically downwards along the mainspring wire winding bar, passing through the through hole in the top plate of the base and the lower end of the small hole on the right end of the spring plate, then around the pulley and connecting to the mainspring of the mainspring 3014 in a horizontal leftward direction. A weight positioning touch switch 306 and a weight reset touch switch 307 are installed on the bottom surface of the top plate of the base. A spring wire located below the spring plate is equipped with... A positioning joint 3018 is provided, which cannot pass through the small hole at the right end of the spring plate; the weighing pan 3016 is positioned directly below the weight; under the forward drive of the motor, when the weight falls into the weighing pan with the weight line, at the same time, the positioning joint of the spring line moves upward and touches the weight positioning switch by lifting the spring plate, controlling the motor to stop rotating; under the reverse drive of the motor, when the weight enters the weight reset fixing seat with the weight line and touches the weight reset touch switch, controlling the motor to stop rotating, at the same time, the spring line moves downward under the tension of the spring, and the positioning joint of the spring line moves downward to reset.

[0074] When the dosing door side baffle is closed, it is inserted into the baffle box. The top of the dosing door side baffle box has a sealing brush strip to prevent medicinal materials from accidentally falling into the baffle box. Figure 12 , Figure 30 , Figure 37 , Figure 38 , Figure 40 See the rear door panel opening and closing mechanism for details. Figures 24-27When the control system controls the rear door to open, the motor drives the actuation disk to rotate. The actuation disk drives the connecting rod to push outward, which in turn pushes the upper and lower rear door sealing plates open. After opening to a certain angle, the sensor actuation disk touches the rear door limit switch, and the motor stops rotating. At this time, the rear door is in the open state. When the control system controls the rear door to close, the motor drives the actuation disk to rotate back. The actuation disk drives the connecting rod to pull inward, which in turn pushes the upper and lower rear door sealing plates close. The lower and upper rear door sealing plates close, and the actuation disk touches the rear door reset switch, stopping the motor.

[0075] A vertical plate is fixedly connected to the left and right side faces or outer walls of the lower opening of the hopper. A horizontal lower limit strip 50 is fixedly connected to the lower ends of the two vertical plates. The stainless steel nail-type composite conveyor belt drive is fixed to the slot 51 of the lower limit strip by a clamping strip 2027 on it, and the two are locked by screws through the locking holes 52 on the lower limit strip. It also has a limited dispensing mechanism for Chinese herbal medicine pieces: the shaft of the pressure roller 41 is movably mounted on the slots 45 of the two vertical plates. The upper end of the spring plate 40 is fixed to the outer wall of the hopper, and the lower end is pressed against the pressure roller. There are 6 positioning pins, 3 on each side. The pressure roller assembly limits the amount of medicine dispensed by the dispensing device. The pressure roller assembly rotates as the Chinese herbal medicine pieces are dispensed. The two ends of the shaft of the pressure roller assembly are inserted into the slots on the side plates. The spring plate of the pressure roller always presses against the pressure roller. The pressure roller assembly automatically adjusts up and down according to the change in the amount of Chinese herbal medicine pieces dispensed. The clamping strip has a fixing and sealing function. One side of the clamping strip presses the composite transmission belt tightly, forming a seal. During the movement of the composite transmission belt, the medicinal herbs remain on the surface of the belt and do not fall underneath. The other side of the clamping strip is designed as a strip to match the slot of the hopper for easy assembly and disassembly. The rear end of the stainless steel nail-type composite conveyor belt drive is equipped with a discharge cover 49 for the material to fall into the weighing pan of the metering and pushing flipping device. The hopper assembly is fixed to the cabinet by bolts through the fixing holes 48 on the fixing holes 48 on the cabinet, using multiple positioning pins 46 on the lower end face of the left and right sides of the upper cover plate inserted into the positioning slots 47 on the top end face of the cabinet. The dosing door is formed by an inner sealing plate 28 fixed to the outer shell 24. An electric lock 23 is installed at the front of the inner sealing plate, and a latch 37 matching the electric lock is installed on the inner wall of the front opening of the cabinet. The rear end of the dosing door is provided with two arc-shaped springs for opening the dosing door when the electric lock is open. These springs are made of bent strip plates and are composed of a first straight segment, an arc segment, and a second straight segment connected in sequence. The first straight segment is fixed to the bottom surface of the dosing door with screws, and the second straight segment is freely abutted against or fixed to the bottom surface of the upper cover plate. A low drug indicator light 11 and a fault indicator light 12 are installed on the front door of the cabinet. A front door lock 10 is installed on the inner wall of the front opening of the cabinet. A latch 21 that works with the front door lock is installed on the inner surface of the front door. A keyhole 22 for opening the front door lock with a key is provided on the front door. A control board box 15 is installed on the inner surface of the front door. A heat dissipation hole 14 is opened on the front door. A pluggable terminal block 2 and a wire trough 3 are provided on the side panel of the cabinet.A D-shaped sealing strip 36 is provided on the dosing port corresponding to the dosing door on the cabinet box, and a sealing strip 35 is provided on the opening on the top of the cabinet box adjacent to the dosing port; a sealing gasket 25 is provided on the inner sealing plate of the dosing door, and a sealing brush strip 44 is provided on the top end face of the two baffle boxes to allow the side baffle 26 to pass through its interior; a sealing gasket 18 is provided on the front opening of the cabinet box to seal the front door of the cabinet; a dregs box 32 and a dregs bag 31 are sequentially provided at the front of the stainless steel nail-type composite transmission plate conveyor, an air inlet 64 is provided on the rear panel of the cabinet box, and an exhaust fan 62 that exhausts through the heat dissipation exhaust hole 63 is installed on the inner surface of the inclined panel at the front of the cabinet box or the lower inner surface of the front door of the cabinet box; a dustproof isolation plate 65 is provided in the inner cavity of the cabinet box to isolate the metering push and flipping device separately. The control panel is covered by a control panel box, isolating it from the internal space of the cabinet and preventing dust from contaminating it. Some unit medicine cabinets may generate significant dust during dispensing of medicinal herbs, potentially contaminating the cabinet's interior. To prevent this, a dustproof partition or mesh can be installed to divide the cabinet's interior into two areas: an upper heat dissipation area and a lower dispensing area. This reduces dust contamination, ensuring the two areas are isolated and do not interfere with each other. Dust from the dispensing area will not contaminate the heat dissipation area. The dispensing area should be cleaned regularly during use. A ventilation mesh is installed on the front door corresponding to the control panel to ensure heat dissipation. The rear of the cabinet has an air intake mesh with a dustproof screen, and the front has a heat dissipation exhaust mesh with an exhaust fan installed. When the exhaust fan operates, fresh air enters through the rear air intake mesh, carrying away the heat generated by the central motor, and is then expelled by the exhaust fan, thus achieving heat dissipation.

[0076] The calibration method for the metering calibration device includes the following steps: (1) The control system issues a "metering calibration" command; (2) The unit medicine cabinet control board controls the metering push and flipping device to zero the weighing pan metering; (3) The unit medicine cabinet control board controls the motor of the metering calibration device to work, driving the spring wire winding bar and the weight wire winding device to rotate; (4) The weight wire reel releases the weight wire and gently lowers the weight. At the same time, the weight releases the reset touch switch, and the unit medicine cabinet control board detects that the weight has been activated. (5) At the same time as the weights move, the winding bar of the mainspring coils the mainspring, pulls the mainspring out of the mainspring coil, turns it through the pulley, passes through the small hole at one end of the spring plate, and winds it into the groove of the winding bar of the mainspring coil. (6) The weight continues to descend until it falls into the weighing pan of the metering push-turning device. The weight is no longer under any tension. The motor continues to work for a certain period of time and then stops. The weight wire winder continues to rotate for a certain period of time, releasing a portion of the weight wire. This excess weight wire is suspended in the air so as not to affect the accuracy of the weight. The length of "the motor continues to work for a certain period of time" is controlled by the positioning section on the spring wire and needs to be preset. (7) After the weight falls into the weighing pan of the metering push and flipping device, the positioning joint fixed on the spring line passes through the pulley and reaches the spring plate. Since the positioning joint is larger than the small hole of the spring plate, the spring line continues to be wound up, which will push the spring plate. The spring plate will press the weight into place and touch the switch. The unit medicine cabinet control board detects that the weight has reached the predetermined position and controls the motor to stop rotating. (8) When the weight specified by the metering calibration device falls into the weighing pan of the metering push-turn device, the metering device will read the measurement data of the weight in the weighing pan and send it to the unit medicine cabinet control board. The unit medicine cabinet control board will compare the measurement data with the weight data of the weight that has been entered in advance. If the comparison error is within the specified error range, the metering device is deemed to be qualified. If the comparison error exceeds the specified error range, the metering device is deemed to be unqualified. The unit medicine cabinet control board will alarm the upper-level system and prompt that the metering device in the metering push-turn device needs to be replaced. (9) After the automatic measurement and calibration of the control metering push device is completed, the control motor is reversed. The weight wire winder winds up the weight wire and lifts the weight. The spring wire winder releases the spring wire. The spring wire is pulled by the spring wire and wound into the spring coil. The positioning joint goes back with the spring wire. The spring plate rebounds and releases the weight into place and touches the switch. The control system detects that the weight has started to return. (10) The weight continues to rise and enters the weight reset fixing seat. The weight is fixed and the lever of the weight reset touch switch is pressed. The system detects that the weight has reached the initial fixed position and controls the motor to stop rotating. (11) Measurement calibration completed.

[0077] The control method for the metering push-flipping device includes the following steps: (1) Before weighing, the measurement data on the control circuit board of the electronic scale in the upper system is reset to zero. (2) The weighing pan receives the medicinal materials and processed medicinal slices output by the medicine dispensing device; (3) The electronic scale sensor under the weighing pan detects the weight of the medicinal materials in the weighing pan in real time and uploads the weight data to the upper system through the electronic scale control circuit board in real time. (4) After the weight of the medicinal materials reaches the required weight, the material taking device stops taking out the material, and the metering, pushing and turning equipment waits for the next action instruction. (5) When the metering push-turning device receives the tilting command from the upper system, the motor of the metering push-turning device drives the lead screw to rotate, which pushes the T-flange nut to move. The T-flange nut drives the slider to move linearly on the slide rail. The slider is connected to the weighing pan rotating plate. The slider drives the weighing pan rotating plate to move linearly, thereby driving the weighing pan to move linearly. When the weighing pan moves to a certain position, the gear and rack on the weighing pan rotating plate mesh, so that the weighing pan has a flipping motion on the basis of linear motion. When the weighing pan moves linearly to the designated position, the limit lever touches the limit touch switch and stops moving. At this time, the flipping motion of the weighing pan just flips the weighing pan to a certain angle, so that the medicinal slices in the weighing pan are tilted out, and the medicine is discharged. After the weighing pan stays in the tilting state for a few seconds, the motor rotates in the opposite direction, driving the weighing pan to rotate back to the horizontal state and then move linearly back to the initial starting point. The motor stops moving after the limit lever touches the reset touch switch. (6) The weighing pan is reset and the weighing is zeroed, waiting for the next operation.

[0078] Work process: Adding medication: 1. When the control board receives the unlocking command for the dosing door from the upper system, the control board controls the electric lock of the dosing door to be energized and unlocked. The dosing door automatically pops open under the action of the spring plate and remains open.

[0079] 2. The user loads the medicinal herbs into the hopper.

[0080] 3. The user manually closes the dosing door, and the dosing is complete.

[0081] Pick up the medicine: After receiving the herb-collecting command from the upper-level system, the control board activates the mixing device, the metering and pushing device, and the lower discharge herb-collecting device. The motor in the lower discharge herb-collecting device drives the composite conveyor belt, whose steel nails carry the medicinal herbs out. These herbs pass through a pressure roller assembly on the hopper, where excess herbs are blocked, ensuring the nails only carry a certain height of herbs, thus achieving accurate metering. The herbs fall through the discharge hood into the weighing pan of the metering and pushing device. Once the weight of the herbs in the weighing pan is greater than or equal to the pre-measurement setting, the lower discharge herb-collecting device begins to jog the herbs until the required weight is reached. At this point, the metering and pushing device stops metering, the lower discharge herb-collecting device stops operating, and the mixing device stops stirring.

[0082] Dispensing medicine: 1. After receiving the dispensing command from the upper system, the control board controls the motor in the rear door device to rotate outward, which in turn drives the connecting rod and sensor actuation plate to rotate outward. The connecting rod lifts the upper sealing plate of the rear door and drives the lower sealing plate of the rear door to open. When the sensor actuation plate rotates to a certain angle, it touches the rear door limit sensor, the motor stops rotating, and the rear door device remains open.

[0083] 2. While the control panel controls the operation of the rear door device, it also controls the operation of the metering push-turning device. The motor in the metering push-turning device starts to rotate, pushing the weighing pan towards the rear door. After moving horizontally for a certain distance, the gears and racks on the weighing pan turn plate mesh, so that the weighing pan also has a turning motion on the basis of horizontal movement, and begins to pour out the medicinal materials. Until the weighing pan turns to a certain angle and touches the limit switch, the motor stops rotating and the weighing pan stops turning. At this time, the medicinal materials can be completely poured out.

[0084] 3. After the weighing pan maintains its tilt angle for a certain period of time, the control panel controls the motor in the metering push-over device to start rotating in the opposite direction. The weighing pan rotates back to a horizontal state, then moves horizontally back. After touching the limit switch, the motor stops rotating and the weighing pan resets.

[0085] 4. After the metering push flipping device is reset, the control board controls the motor in the rear door device to rotate inward, which in turn drives the connecting rod and the sensor actuation plate to rotate inward. The connecting rod drives the upper and lower sealing plates of the rear door to rotate and close. When the sensor actuation plate rotates to a certain angle, the sensor actuation plate touches the rear door reset sensor, the motor stops rotating, and the rear door device is in the closed state.

[0086] 5. Wait for the next dose of medication.

Claims

1. A composite conveyor belt type bottom-discharge bulk Chinese herbal medicine cabinet, characterized in that, The unit medicine cabinet consists of a cabinet box (1) and a hopper assembly. The hopper assembly is formed by the hopper (5) and the upper cover plate (7) as one unit. The upper cover plate of the rectangular box is fastened to the upper surface of the top opening of the cabinet box. The hopper extends into the inner cavity of the cabinet box. The medicine inlet at the front of the upper cover plate is hinged with a medicine door (8) with side baffles (26) on both sides. The upper cover plate has a baffle box (9) fixed on the left and right inner side walls of the medicine inlet with rivets (38) for inserting the side baffle of the medicine door when closing the medicine door. The front door (13) of the cabinet box is set at the front of the cabinet box via a door hinge (19). The rear door for dispensing medicine is set on the rear panel of the cabinet box. The rear panel of the cabinet box is equipped with an automatic opening and closing device (30) for the rear door. The built-in stirring device (100) of the lower discharge hopper is inclinedly set above the lower opening of the hopper, and a stainless steel nail-type composite conveyor belt conveyor (200) is set parallel to the stirring device on the lower opening of the hopper. The metering, pushing, and turning device (400) for collecting the output of the aforementioned conveying equipment is installed on the bottom plate of the cabinet. Its structure is as follows: the motor (401) is installed on the right rear of the rectangular base (4014) via the motor mount (402). The motor shaft is connected to the T-shaped lead screw (408) via the coupling (404). The T-shaped flange nut (405) is screwed onto the T-shaped lead screw. The linear slide rail (4012) is located on the left side of the T-shaped lead screw and is parallel to the T-shaped lead screw. The slider (403) slides with the linear slide rail. The limit reset lever (407) is composed of a horizontal plate and a vertical plate. The horizontal plate is fixed to the slider with screws. The vertical plate is fixed to the flange of the T-shaped flange nut with four bolts. The rightward extension of the vertical plate is used to trigger the limit touch switch (409) and the reset touch switch (406). The joint (406) is installed on the support (4010) at the end position corresponding to the flange nut and on the support at the beginning position respectively. Three rubber-coated bearings (4017) are installed around the bottom of the rectangular weighing pan rotating plate (4018) so that it can roll along the base groove (4016) on the base. The left side of the front part of the weighing pan rotating plate extends upward to form an ear plate. An electronic scale sensor (4019) is installed on the top surface of the middle part of the weighing pan rotating plate. The weighing pan (4020) is fixed on the electronic scale sensor by screws. The spur gear (4015) of 1 / 4 part is installed and fixed on the rotating shaft. The right end of the rotating shaft is fixed on the inner ring of the bearing. The bearing is fixed in the bearing seat. The bearing seat is fixed on the slider by screws. The left end of the rotating shaft is movably mounted on the shaft hole of the ear plate. The rack (4013) used to mesh with the gear (4015) to make the weighing pan rotate 90° is installed in the middle position of the front part of the base. A metering calibration device (300) is provided above the weighing pan (4020) along the left-right direction of the hopper: a motor (301) is mounted on a motor base (302), a spring winding bar (304) and a weight wire winding device (305) are sequentially fixed to the motor (301) shaft from left to right along the same axis, the spring wire (3012) is wound along the spring wire groove (3019) of the spring winding bar, and the weight wire (309) is wound along the weight wire groove (3020) of the weight wire winding device, and the winding direction of the spring wire is opposite to that of the weight wire; the motor base is fixed to the top plate of the base (303). A weight reset fixing seat (308) is fixed on the bottom surface of the top plate of the base, directly opposite the position of the weight line. The weight reset fixing seat is a conical cylinder with a smaller top and a larger bottom, designed to allow the weight (3010) to enter from bottom to top and prevent it from passing through. A circular hole of the same size as the opening at the top of the conical cylinder is opened on the top plate of the base. A weight line guide ring (3024) is fixed on the top plate of the base by screws. The weight line passes down along the weight line reel in sequence through the weight line guide ring, the circular hole on the top plate of the base, and the lower end of the weight reset fixing seat, and a weight (3010) for measurement calibration is fixedly connected thereto. The spring disc (3 014) Installed on a vertical plate (3015) fixed to the bottom surface of the top plate of the base, the pulley (3011) is fixed on the vertical plate (3015); the left end of the spring plate (3013) is fixed to the bottom surface of the top plate of the base by screws; the mainspring wire passes vertically downward along the mainspring wire winding bar, passing through the through hole on the top plate of the base and the lower end of the small hole on the right end of the spring plate, and then passes around the pulley and connects to the mainspring of the mainspring disk in a horizontal left direction; a weight positioning touch switch (306) and a weight reset touch switch (307) are installed on the bottom surface of the top plate of the base; a non-passable... The positioning joint (3018) passes through the small hole at the right end of the spring plate; the weighing pan (3016) is set directly below the weight; under the forward drive of the motor (301), when the weight falls into the weighing pan with the weight line, at the same time, the positioning joint of the spring line moves upward and touches the weight positioning switch by lifting the spring plate, controlling the motor (301) to stop rotating; under the reverse drive of the motor (301), when the weight enters the weight reset fixing seat with the weight line and touches the weight reset touch switch at the same time, the motor (301) stops rotating, at the same time, the spring line moves downward under the tension of the spring, and the positioning joint of the spring line moves downward to reset.

2. The composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet according to claim 1, characterized in that, The stainless steel nail-type composite conveyor belt conveyor (200) has the following structure: the drive wheel (204) is a columnar body with a flange on both end faces; the geared motor consists of a motor (201) and a reducer (202), the geared motor is installed on the vertical section outside the left side plate (2016), the D-shaped inner hole (205) on the left end face of the drive wheel is fixed on the output shaft (203) of the geared motor, the shaft on the right end face of the drive wheel is mounted on the right side plate (2021) via a bearing (2020), the right side plate and the left side plate are the same shape and symmetrically arranged, and the support wheel assembly composed of multiple support wheels is installed and fixed. Located between the left and right side plates (2016, 2021), the top height of multiple support wheels is the same as the top height of the drive wheel and they are all in a horizontal position. The structure of each support wheel (2018) is as follows: a pin (2012) is installed on two needle rollers (2011) inside the cylindrical body (2010). The right end of the pin extending out of the cylindrical body has a disc for locking onto a hole in the left side plate (2016). The left end of the pin extending out of the cylindrical body has a slot for locking a retaining spring (2013). The rotating shaft (2019) located below the support wheel assembly is rotatably set between the rear of the left and right side plates. The driven wheel (206) has the following structure: both ends of the cylinder have a flange, the driven wheel shaft (207) is mounted on two bearings (208) inside the cylinder, and the two outer ends of the driven wheel shaft extending out of the cylinder have slots, and the retaining spring (209) is secured in the slots; the driven wheel assembly is as follows: the driven wheel is rotatably mounted between the left and right side plates (2025) of the driven wheel with the same shape, and another support wheel is movably set between the left and right side plates of the driven wheel; the left and right side plates of the driven wheel are fixed on the rotating shaft. When the driven wheel assembly is not fixed and is in a free hanging state, the stainless steel nail-type composite conveyor belt can be fitted onto the driving wheel and the driven wheel. When the driven wheel assembly is raised to a horizontal position, the positioning screws (2026) are used to fix the left and right side plates of the driven wheel to the left and right side plates respectively, so that the conveying equipment is in a ready-to-work state; A main intermediate beam (2017) is fixed to the lower position of the support wheel assembly between the left and right sides of the plate by fixing screws (2022); a secondary intermediate beam (2023) is also fixed to the lower position of another support wheel between the left and right sides of the driven wheel by screws. A vertical plate is fixedly connected to the left and right side ends or outer wall of the lower opening of the hopper, and a horizontal lower limit strip (50) is fixedly connected to the lower end of the two vertical plates. The stainless steel nail-type composite conveyor belt conveyor is fixed to the slot (51) of the lower limit strip by the card strip (2027) on it, and the two are locked by screws through the locking hole (52) on the lower limit strip. It also has a limited dispensing mechanism for Chinese herbal medicine slices: the shaft of the pressure roller (41) is mounted on the strip hole (45) of the two vertical plates, the upper end of the limited spring plate (40) is fixed on the outer wall of the hopper, and the lower end is pressed onto the pressure roller; The stirring device (100) has the following structure: A cylindrical driven shaft (108) is fixedly connected to the inner wall of the lower opening of the hopper at an incline to the horizontal direction. An electric drive mechanism is provided on the outer wall of the lower opening of the hopper: a bearing seat (104) with a bearing (105) is fixed to the outer wall of the hopper; a motor (102) is mounted on the cabinet or the outer wall of the hopper via a fixing plate (107); the motor shaft is mounted on the bearing (105) at the same inclination angle as the driven shaft; and a drive shaft (103) is fixed to the motor shaft located on the same axis as the drive shaft via a key. The drive shaft passes through the material from the outside to the inside. The opening of the hopper extends into the inner cavity of the hopper, and a sealing ring (106) is provided between the drive shaft and the bearing seat; the tooth-type stirring shaft (109) is movably fitted onto the driven shaft through the circular blind hole on its left end face and fitted onto the square head of the drive shaft through the square hole on its right end face; the motor speed is 80 rpm, the inclination angle of the driven shaft is -15° to -30°, and the structure of the tooth-type stirring shaft (109) is as follows: four stirring rods, one on top, one on the bottom, one on the left, and one on the right, are fixed on the shaft as a group, and several groups of stirring rods are evenly distributed on the shaft along the axis; the sealing ring is a silicone sealing ring; The stainless steel nail-type composite conveyor belt structure is as follows: the two wide sides of the steel belt (501) are set at the same angle to the two parallel long sides, and the two wide sides are parallel to each other. Several rows of holes are evenly spaced along the long side of the steel belt. Small square holes and large square holes are alternately arranged in each row of holes. The two wide side joints of the steel belt are aligned and laser-welded into one piece. The structure of the lower stop bar (502) is as follows: small square holes and large square heads are evenly spaced and alternately arranged on the surface of the bar. The bottom of the bar has one or more grooves. A lower stop bar is set at each row of holes of the steel belt. The large square heads on the lower stop bar pass through the large square holes in the row of holes of the steel belt. The steel nail is composed of small square heads and large square heads integrated into one piece. Multiple steel nails (503) The small square head of the steel strip passes through the small square holes in the corresponding row of holes on the steel strip from top to bottom and is inserted into the small square hole on the lower stop bar, and is laser welded together with the lower stop bar to form a welded part (505); the PU silicone layer (504) or rubber layer covers and fixes the bottom surface of the steel strip with the lower stop bar to form a composite conveyor belt; the steel strip, the lower stop bar and the steel nail are all made of food-grade 304 stainless steel or food-grade 316 stainless steel, each row of holes on the steel strip is odd number, and starts with a small square hole and ends with a small square hole, the large square head of the steel nail has the same shape as the large square head on the lower stop bar, and is a cube; the thickness of the steel strip is 0.1mm to 0.2mm, and the thickness of the PU silicone layer is 1mm to 10mm.

3. The composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet according to claim 2, characterized in that, The stainless steel nail-type composite conveyor belt conveyor is equipped with a discharge cover (49) at the rear end for the discharge to fall into the weighing pan of the metering push and flipping device; the hopper assembly is inserted into the positioning groove (47) on the top end face of the cabinet by multiple positioning pins (46) on the lower end face of the left and right sides of the upper cover plate, and then the hopper is fixed to the cabinet by bolts through the fixing holes (48) on the cabinet. The secondary intermediate beam is equipped with a scraper (2032) for scraping off the Chinese herbal medicine residue attached to the inner surface of the composite conveyor belt. The lower part of the left and right side plates is also fixed with a slag tray (2028) for collecting the slag scraped off by the scraper. The left and right side plates of the driven wheel are provided with slag discharge ports (2033) near the scraper position. The left side plate is a bent plate with a horizontal leftward section, a vertical downward section and a horizontal rightward section; the top horizontal sections of the left side plate and the right side plate are also respectively fixed with a retaining strip (2027) by screws. The retaining strip is used to press onto the stainless steel nail-type composite conveyor belt to prevent the Chinese medicine decoction pieces from leaking out of the composite conveyor belt. The left and right sides of the driven wheel are equipped with screws to install stop teeth (2014) at the discharge end position: the lower part of the strip-shaped body has a row of toothed grooves for the corresponding steel nails (503) on the stainless steel nail composite conveyor belt to pass through, and the concave arc surface of the lower front edge of the body is similar to the running trajectory of the top of the steel nail (2015).

4. The composite conveyor belt type bottom discharge bulk Chinese herbal medicine unit cabinet according to claim 3, characterized in that, The dosing door is formed by fixing an inner sealing plate (28) to the outer shell (24). An electric lock (23) is installed at the front of the inner sealing plate, and a latch (37) matching the electric lock is installed on the inner wall of the front opening of the cabinet. The rear end of the dosing door is provided with two arc-shaped springs for opening the dosing door when the electric lock is open. They are made of strip plate bent into shape and are composed of a first straight section, an arc section and a second straight section connected in sequence. The first straight section is fixed to the bottom surface of the dosing door with screws, and the second straight section is freely abutted against or fixed to the bottom surface of the upper cover plate.

5. The composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet according to claim 4, characterized in that, The cabinet front door is equipped with a medicine shortage indicator (11) and a fault indicator (12). A cabinet front door lock (10) is installed on the inner wall of the cabinet front opening. A door lock latch (21) for use with the cabinet front door lock is installed on the inner surface of the cabinet front door. A lock hole (22) for opening the cabinet front door lock with a key is provided on the cabinet front door. The cabinet has a control board box (15) installed on the inside of the front door, a heat dissipation hole (14) on the front door, and pluggable terminals (2) and wire troughs (3) on the side panel of the cabinet.

6. The composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet according to claim 5, characterized in that, A D-shaped sealing strip (36) is provided on the dosing port corresponding to the dosing door on the cabinet box, and a sealing strip (35) is provided on the opening on the top of the cabinet box adjacent to the dosing port; a sealing gasket (25) is provided on the inner sealing plate of the dosing door, and a sealing brush strip (44) is provided on the top end face of the two baffle boxes to allow the side baffle (26) to pass through its interior; a sealing gasket (18) is provided on the front opening of the cabinet box to seal the front door of the cabinet; a dregs box (32) and a dregs bag (31) are sequentially provided at the front of the stainless steel nail-type composite conveyor belt conveyor, an air inlet (64) is provided on the rear panel of the cabinet box, and an exhaust fan (62) that exhausts through the heat dissipation exhaust hole (63) is installed on the inner surface of the inclined panel at the front of the cabinet box or the lower inner surface of the front door of the cabinet box; a dustproof isolation plate (65) is provided in the inner cavity of the cabinet box to isolate the metering push and flipping device separately.

7. A composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet according to any one of claims 1 to 6, characterized in that, The automatic opening and closing device of the rear door is as follows: the rear door is composed of an upper sealing plate (56) and a lower sealing plate (57) that are hinged to each other. The upper end of the upper sealing plate is hinged to the rear panel above the medicine outlet of the rear door. The motor (54) is installed on the rear panel above the medicine outlet of the rear door via motor base four (55). Limit switches (60) and reset switches (61) are installed on the vertical plate that is integrated with motor base four (55) and perpendicular to the rear panel. The actuation disk (58) used to touch the limit switch and reset switch is installed on the motor shaft. One end of the connecting rod (59) is hinged to the actuation disk, and the other end of the connecting rod is hinged to the upper sealing plate.

8. A calibration method for the metering calibration device of the composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet according to any one of claims 1 to 6, characterized in that, Includes the following steps: (1) The control system issues a metering calibration command; (2) The unit medicine cabinet control board controls the metering push and flipping device to zero the weighing pan metering; (3) The unit medicine cabinet control board controls the motor of the metering calibration device to work, driving the spring wire winding bar and the weight wire winding device to rotate; (4) The weight wire reel releases the weight wire and gently lowers the weight. At the same time, the weight releases the reset touch switch, and the unit medicine cabinet control board detects that the weight has been activated. (5) At the same time as the weights move, the winding bar of the mainspring coils the mainspring, pulls the mainspring from the mainspring coil, turns it through the pulley, passes through the small hole at one end of the spring plate, and winds it into the mainspring groove in the winding bar of the mainspring. (6) The weight continues to descend until it falls into the weighing pan of the metering push and flipping device. The weight is no longer under any tension. The motor of the metering push and flipping device continues to work for a certain period of time and then stops. The weight wire winder continues to rotate for a certain period of time to release more weight wire, so that the extra weight wire is suspended in the air and does not affect the accuracy of the weight. The length of time the motor continues to work is controlled by the positioning section on the spring wire and needs to be set in advance. (7) After the weight falls into the weighing pan of the metering push and flipping device, the positioning joint fixed on the spring wire passes through the pulley and reaches the spring plate. Since the positioning joint is larger than the small hole of the spring plate, the spring wire continues to be wound up, which will push the spring plate. The spring plate will press the weight into place and touch the switch. The unit medicine cabinet control board detects that the weight has reached the predetermined position and controls the motor of the metering push and flipping device to stop rotating. (8) When the weight specified by the metering calibration device falls into the weighing pan of the metering push-turn device, the metering device will read the measurement data of the weight in the weighing pan and send it to the unit medicine cabinet control board. The unit medicine cabinet control board will compare the measurement data with the weight data of the weight that has been entered in advance. If the comparison error is within the specified error range, the metering device is deemed to be qualified. If the comparison error exceeds the specified error range, the metering device is deemed to be unqualified. The unit medicine cabinet control board will alarm the upper-level system and prompt that the metering device in the metering push-turn device needs to be replaced. (9) After the automatic measurement and calibration of the metering push device is completed, the control system controls the motor of the metering and calibration device to rotate in the reverse direction. The weight wire winder winds up the weight wire and lifts the weight. The spring wire winder releases the spring wire. The spring wire is pulled by the spring wire and wound into the spring coil. The positioning joint returns with the spring wire. The spring plate rebounds and releases the weight into place and touches the switch. The control system detects that the weight has started to return. (10) The weight continues to rise and enters the weight reset fixing seat. The weight is fixed and the lever of the weight reset touch switch is pressed. The system detects that the weight has reached the initial fixed position and controls the motor of the metering calibration device to stop rotating. (11) Measurement calibration completed.

9. A control method for the metering, pushing, and flipping device of the composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet according to any one of claims 1 to 6, characterized in that, Includes the following steps: (1) Before weighing, the measurement data on the control circuit board of the electronic scale in the upper system is reset to zero. (2) The weighing pan receives the medicinal materials and processed medicinal slices output by the medicine dispensing device; (3) The electronic scale sensor under the weighing pan detects the weight of the medicinal materials in the weighing pan in real time and uploads the weight data to the upper system through the electronic scale control circuit board in real time. (4) After the weight of the medicinal materials reaches the required weight, the material taking device stops taking out the material, and the metering, pushing and turning equipment waits for the next action instruction. (5) When the metering push-turning device receives the tilting command from the upper system, the motor of the metering push-turning device drives the lead screw to rotate, which pushes the T-flange nut to move. The T-flange nut drives the slider to move linearly on the slide rail. The slider is connected to the weighing pan rotating plate. The slider drives the weighing pan rotating plate to move linearly, thereby driving the weighing pan to move linearly. When the weighing pan moves to a certain position, the gear and rack on the weighing pan rotating plate mesh, so that the weighing pan has a flipping motion on the basis of linear motion. When the weighing pan moves linearly to the designated position, the limit lever touches the limit touch switch and stops moving. At this time, the flipping motion of the weighing pan just flips the weighing pan to a certain angle, so that the medicinal slices in the weighing pan are tilted out, and the medicine is discharged. After the weighing pan stays in the tilting state for a few seconds, the motor rotates in the opposite direction, driving the weighing pan to rotate back to the horizontal state and then move linearly back to the initial starting point. The motor stops moving after the limit lever touches the reset touch switch. (6) The weighing pan is reset and the weighing is zeroed, waiting for the next operation.

10. A calibration method for the metering calibration device of the composite conveyor belt type bottom-discharge bulk Chinese herbal medicine unit cabinet as described in claim 8, characterized in that, The control method of the control board includes the following steps: Adding medication: (1) When the control board receives the unlocking command for the dosing door from the upper system, the control board controls the electric lock of the dosing door to be energized and unlocked. The dosing door automatically pops open under the action of the spring plate and remains open. (2) The user loads the medicinal herbs into the hopper; (3) The user manually closes the dosing door, and the dosing is complete; Pick up the medicine: After receiving the herb-collecting instruction from the upper-level system, the control board controls the stirring device to start stirring, the metering and pushing device to start metering, and the lower discharge herb-collecting device to start operating. The motor in the lower discharge herb-collecting device drives the composite conveyor belt to rotate. The steel nails on the composite conveyor belt carry out the medicinal herbs. After passing through the pressure roller assembly on the hopper, the pressure rollers block the excess medicinal herbs in the hopper, ensuring that the steel nails only carry out medicinal herbs at a certain height, thus achieving the requirement of accurate metering. The medicinal herbs fall into the weighing pan of the metering and pushing flipping device through the discharge hood. When the weight of the medicinal herbs in the weighing pan is greater than or equal to the rough herb-collecting metering set value, the lower discharge herb-collecting device starts to jog and collect the herbs. After the required weight is reached, the metering and pushing device stops metering, the lower discharge herb-collecting device stops operating, and the stirring device stops stirring. Dispensing medicine: (1) After the control system receives the medicine dispensing instruction from the upper system, the control board controls the motor in the rear door device to rotate outward, and drives the connecting rod and sensor actuation plate to rotate outward. The connecting rod lifts the upper sealing plate of the rear door and drives the lower sealing plate of the rear door to open. When the sensor actuation plate rotates to a certain angle, the sensor actuation plate touches the rear door limit sensor, the motor stops rotating, and the rear door device remains open. (2) While the control panel controls the operation of the rear door device, it also controls the operation of the metering push and flipping device. The motor in the metering push and flipping device starts to rotate, pushing the weighing pan to move towards the rear door. After moving horizontally for a certain distance, the gear and rack on the weighing pan turn plate mesh, so that the weighing pan has a flipping motion on the basis of horizontal movement, and begins to pour out the medicinal herbs. Until the weighing pan flips to a certain angle and touches the limit switch, the motor stops rotating and the weighing pan stops flipping. At this time, the medicinal herbs can be completely poured out. (3) After the weighing pan maintains the tilt angle for a certain period of time, the control board controls the motor in the metering push and flipping device to start rotating in the opposite direction, the weighing pan rotates back to the horizontal state, and then moves horizontally back. After touching the limit switch, the motor stops rotating and the weighing pan resets. (4) When the metering push flipping device is reset, the control board controls the motor in the rear door device to rotate inward, and drives the connecting rod and sensor toggle disc to rotate inward. The connecting rod drives the upper and lower sealing plates of the rear door to rotate and close. When the sensor toggle disc rotates to a certain angle, the sensor toggle disc touches the rear door reset sensor, the motor stops rotating, and the rear door device is in the closed state. (5) Wait for the next dose of medicine.

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