Medicine particle sorting and discharging mechanism

Abstract

The utility model discloses a medicine particle sorting and discharging mechanism, including mounting bracket, the sorting ring body and drive the screening material drive mechanism that reciprocating positive and negative rotation of sorting ring body is rotationally installed on mounting bracket, the inner wall of sorting ring body is equipped with the storage ring platform, and a plurality of sorting and discharging channels are distributed on the storage ring platform, the sorting ring body still is equipped with the material guide cone body that is inclined to the storage ring platform from the middle downwards in, and the top middle part of material guide cone body is equipped with the slow -release platform, the lower side of each sorting and discharging channel corresponds and is equipped with an activity pusher plate and drive each activity pusher plate respectively along the radial telescoping of sorting ring body, and the medicine particle discharge port is equipped on each activity pusher plate. This mechanism can not only make the medicine particle in the medicine storage tank slow discharging, and the medicine particle is sorted and sorted and is temporarily stored in small amount, but also can discharge the medicine particle according to the specified number, finally through the medicine collection tank and is collected to the medicine box, and the feedback verification is carried out in combination with the medicine particle counter, guarantees the accurate quantitative discharging of medicine particle.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical granule packaging technology, and in particular to a pharmaceutical granule sorting and feeding mechanism. Background Technology

[0002] Health supplements are a type of food, sharing the common characteristics of general food, and can regulate the body's functions. Modern health supplements are generally processed in factories using fully automated processes, which are more hygienic and efficient.

[0003] However, in the packaging process of health supplements, quantitative sorting and packaging are generally carried out by machinery and equipment. By controlling the machine, bagged health supplements are quantitatively dispensed into boxes according to multiple varieties and fixed dosage ratios, making them convenient to carry after sealing. Since the accuracy of the quantity of each pill in health supplements is crucial, the need for feeding equipment with high accuracy and high reliability is urgent. Therefore, this application proposes a quantitative automatic sorting and feeding device for pills to ensure the accuracy of the quantity of pills discharged. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a pharmaceutical granule sorting and feeding mechanism that provides reliable and accurate granule feeding.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a pharmaceutical granule sorting and feeding mechanism, including a mounting frame, on which a sorting ring and a screening drive mechanism that drives the sorting ring to reciprocate forward and reverse rotation are rotatably mounted. The inner wall of the sorting ring is provided with a storage ring platform, and multiple vertically arranged sorting and feeding channels are distributed on the storage ring platform. The sorting ring is also provided with a guide cone that slopes downward from the middle to the storage ring platform, and a buffer platform is provided at the top center of the guide cone. Below each sorting and feeding channel, there is a corresponding movable pusher plate and a discharge execution mechanism that drives each movable pusher plate to extend and retract radially along the sorting ring. Each movable pusher plate is provided with a pharmaceutical granule discharge port corresponding to each sorting and feeding channel.

[0006] As a preferred technical solution, when the movable pusher plate is retracted, the granule outlet is located below the sorting and feeding channel; when the movable pusher plate is extended, the granule outlet is located outside the sorting ring.

[0007] As a preferred technical solution, the circumference of the sorting ring is provided with multiple radial guide grooves, and each of the movable pusher plates slides along the corresponding radial guide groove.

[0008] As a preferred technical solution, a reserved gap is provided between the top of the movable pusher plate and the bottom of the sorting and unloading channel.

[0009] As a preferred technical solution, the discharge actuator is a push-pull electromagnet, and the telescopic rod of the push-pull electromagnet is fixedly connected to one end of the movable push plate.

[0010] As a preferred technical solution, the outer periphery of the sorting ring is provided with a transmission part, which is connected to the screening drive mechanism. The screening drive mechanism drives the sorting ring to reciprocate in both directions.

[0011] As a preferred technical solution, the transmission part is a transmission gear located on the outer periphery of the sorting ring, the screening drive mechanism includes a motor, the output end of the motor is provided with a power gear, and the power gear and the transmission gear are connected by a toothed belt.

[0012] As a preferred technical solution, a medicine storage tank is provided above the sorting and unloading mechanism. The medicine storage tank is fixed on the mounting frame, and the bottom discharge port of the medicine storage tank extends into the sorting ring body and is located above the slowing platform.

[0013] As a preferred technical solution, a receiving tank is provided below the sorting and feeding mechanism. The receiving tank is fixed on the mounting frame. The top opening of the receiving tank is located outside the multiple movable push plates. A pill counter is provided at the bottom outlet of the receiving tank.

[0014] As a preferred technical solution, it also includes a controller, which controls the number of discharge executions of the discharge actuator. The number of discharge particles detected by the particle counter is transmitted to the controller, and the controller compares and judges the detected number of discharge particles with the number of discharge executions.

[0015] Due to the adoption of the above technical solution, the beneficial effects of this utility model are: I. This utility model provides a sorting and feeding mechanism that can not only slowly feed the medicine granules in the medicine storage tank and sort and temporarily store a small number of medicine granules, but also discharge the temporarily stored medicine granules according to a specified quantity, and finally collect them into the medicine box through the medicine receiving tank, thus completing the precise quantitative feeding of medicine granules. II. The sorting ring of this utility model is designed with a slowing platform that can slow down the feeding speed of the medicine storage tank and a storage ring that can limit the shaking path of the medicine particles. The two work together to ensure that there are only a small number of medicine particles in the storage ring, and the medicine particles are relatively loose. Combined with the forward and reverse rotation of the sorting ring, the medicine particles in the storage ring shake along the storage ring, so that they can accurately and smoothly enter the sorting and feeding channel, which greatly improves the feeding accuracy of the medicine particles. Third, this application utilizes movable pusher plates to achieve single-particle feeding of the drug. By arranging multiple movable pusher plates and combining them with independently controlled multiple discharge actuators, the movable pusher plates can operate according to the required number of drug particles. This method of one-to-one correspondence between the movable pusher plates, discharge actuators, and drug particles can achieve the purpose of precise feeding of the drug particles. Attached Figure Description

[0016] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a structural schematic diagram of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the sorting and unloading device according to an embodiment of the present invention; Figure 4 This is an exploded view of the structure of the sorting and unloading device according to an embodiment of this utility model; Figure 5 This is a top view of the sorting ring body according to an embodiment of the present invention; Figure 6 This is a structural cross-sectional view of the sorting and feeding device according to an embodiment of the present invention; Figure 7 This is a diagram showing the state of the granules entering the movable pusher plate according to an embodiment of this utility model; Figure 8 This is a diagram showing the state of the granules after they are pushed out by the movable pusher plate according to an embodiment of the present invention. Figure 9 This is a diagram showing the state of the medicine granules lying flat inside the movable pusher plate in an embodiment of this utility model; Figure 10 This is a diagram showing the state of the medicine granules standing upright in the movable pusher plate according to an embodiment of this utility model; In the diagram: 100-Medicine storage tank; 200-Sorting and feeding device; 201-Sorting ring; 202-Transmission gear; 203-Motor; 204-Power gear; 205-Toothed belt; 206-Storage ring platform; 207-Sorting and feeding channel; 208-Guide cone; 209-Restraining platform; 210-Modible pusher plate; 211-Medicine granule outlet; 212-Radial guide groove; 213-Push-pull electromagnet; 214-Reserved gap; 300-Medicine receiving tank. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0019] like Figure 1 and Figure 2 As shown, a pharmaceutical granule sorting and feeding mechanism includes a mounting frame on which a medicine storage tank 100, a sorting and feeding device 200, and a medicine receiving tank 300 are mounted. The medicine storage tank 100 is located above the sorting and feeding device 200 and fixed to the mounting frame, while the medicine receiving tank 300 is located below the sorting and feeding device 200 and fixed to the mounting frame. The sorting and feeding device 200 is rotatably mounted on the mounting frame and includes a slow-feeding sorting device and a quantitative feeding device. The slow-feeding sorting device is used to slowly feed the pharmaceutical granules from the medicine storage tank 100 and sort and temporarily store a small number of granules. The quantitative feeding device is used to discharge the temporarily stored pharmaceutical granules in the slow-feeding sorting device according to a specified quantity, and finally collect them into a medicine box through the medicine receiving tank 300, thus completing the precise quantitative feeding of pharmaceutical granules.

[0020] See Figures 3 to 5 The material sorting device includes a rotating sorting ring 201 and a screening drive mechanism. The outer circumference of the sorting ring 201 is mounted on the mounting frame via bearings and bearing seats. The outer circumference of the sorting ring 201 is also provided with a transmission part, which is connected to the screening drive mechanism. The screening drive mechanism drives the sorting ring 201 to rotate back and forth at a certain frequency and a certain rotation angle, that is, rotate forward once, rotate backward once, and then rotate forward again, and so on.

[0021] See Figures 2 to 5 The transmission unit is a transmission gear 202 located on the outer periphery of the sorting ring 201. The transmission gear 202 is fixed to the outer periphery of the sorting ring 201. Alternatively, the transmission gear 202 can be integrally machined onto the outer periphery of the sorting ring 201. The screening drive mechanism includes a motor 203, and a power gear 204 is fixed to the output end of the motor 203. The power gear 204 and the transmission gear 202 are poweredly connected via a toothed belt 205. Alternatively, the power gear 204 and the transmission gear 202 can directly mesh and transmit power. The transmission unit can also be a sprocket or pulley, transmitting power via a chain or conveyor belt.

[0022] See Figures 3 to 5The inner wall of the sorting ring 201 is provided with a storage ring platform 206, on which multiple vertically arranged sorting and feeding channels 207 are distributed. The sorting ring 201 is also provided with a guide cone 208 that slopes downward from the middle to the storage ring platform 206. The top center of the guide cone 208 is provided with a slowing platform 209. The bottom discharge port of the medicine storage tank 100 extends into the sorting ring 201 and is located above the slowing platform 209. The slowing platform 209 is used to slow down the feeding speed of the medicine storage tank 100, and the storage ring platform 206 is used to limit the path of the medicine particles. When the granules fall from the bottom discharge port of the storage tank 100 onto the buffer platform 209, because the buffer platform 209 is flat, the granules pile up on it, causing them to press and accumulate against each other. This prevents the granules in the storage tank 100 from continuing to discharge downwards. The buffer platform 209 prevents excessive or rapid discharge from the storage tank 100, thus avoiding internal accumulation that could hinder the smooth discharge of granules. The state of the granules on the buffer platform 209 is described in [reference needed]. Figure 6 .

[0023] The distance between the bottom end of the guide cone 208 and the inner wall of the sorting ring 201 is greater than or equal to the diameter of the sorting and feeding channel 207. The medicine particles slide down along the guide cone 208 and fall exactly to the ring position corresponding to the sorting and feeding channel 207 on the sorting ring 201, thus limiting the position of the medicine particles and facilitating their accurate entry into the sorting and feeding channel 207.

[0024] When the drug particles accumulate on the slowing platform 209, as the sorting ring 201 reciprocates in both forward and reverse directions, the drug particles at the upper edge of the slowing platform 209 will roll down in an orderly manner and along the guide cone 208 into the storage ring 206, where they accumulate in a small amount on the storage ring 206 and the guide cone 208. (See [reference needed] for the state of this small accumulation.) Figure 6 When the sorting ring 201 rotates forward and backward, the medicine particles on the storage ring 206 will move and enter the sorting and feeding channel 207. Here, the storage ring 206 serves as a route to restrict the movement of the medicine particles. When the sorting ring 201 rotates forward and backward, the medicine particles can only move along the storage ring 206.

[0025] Without the buffer platform 209, when a large number of drug particles accumulate in the sorting ring 201, the particles are tightly compressed. Even with the sorting ring 201 rotating in both directions, the particles have difficulty moving left and right to smoothly enter the sorting and feeding channel 207. Furthermore, without the storage ring 206, the movement of the drug particles under the action of the sorting ring 201's rotation is disordered and chaotic, making it difficult for them to enter the sorting and feeding channel 207. However, due to the coordinated design of the buffer platform 209 and the storage ring 206, only a small number of drug particles are present in the storage ring 206, and the particles are relatively loose. Combined with the rotation of the sorting ring 201, the drug particles in the storage ring 206 can move along the storage ring 206, allowing them to accurately and smoothly enter the sorting and feeding channel 207, greatly improving the accuracy of drug feeding.

[0026] The inner diameter of the discharge port of the medicine storage tank 100 is approximately 3-4 times the diameter of the medicine particles, and the diameter of the slowing platform 209 is 3-5 times the inner diameter of the discharge port of the medicine storage tank 100. The height between the bottom of the discharge port of the medicine storage tank 100 and the surface of the slowing platform 209 is approximately 2-3 times the diameter of the medicine particles. Therefore, the relatively low height between the medicine storage tank 100 and the slowing platform 209 not only slows down the discharge speed but also allows for gradual and orderly automatic continuous discharge in conjunction with the forward and reverse rotation of the sorting ring 201, eliminating the need for valves or other control mechanisms to control the automatic discharge of the medicine storage tank 100.

[0027] See Figure 3 and Figure 4 The quantitative feeding device includes multiple movable pusher plates 210 and a discharge execution mechanism. Each movable pusher plate 210 is circumferentially distributed around the periphery of the sorting ring 201. Each movable pusher plate 210 is provided with a granule discharge port 211 corresponding to each sorting and feeding channel 207. The size of the granule discharge port 211 is only enough to hold one granule, ensuring that only one granule is discharged when the movable pusher plate 210 extends or retracts once. The number of movable pusher plates 210 corresponds one-to-one with the number of sorting and feeding channels 207. A movable pusher plate 210 is located below each sorting and feeding channel 207, and each movable pusher plate 210 is equipped with a discharge actuator. The discharge actuator drives the corresponding movable pusher plate 210 to extend and retract along the sorting ring 201. When the movable pusher plate 210 is retracted, the granule outlet 211 is located below the sorting and feeding channel 207. (See attached image for retracted state). Figure 7 When the movable pusher plate 210 is extended, the granule outlet 211 is located outside the sorting ring 201. (See attached image for extended state). Figure 8Each of the aforementioned dispensing actuators is independently controlled, and can operate simultaneously or separately under the control of the controller. This means that each movable pusher plate 210 is independently extended and retracted. The number of times and quantities of the dispensing actuators operate depends on the number of pills to be dispensed. In this embodiment, there are 12 movable pusher plates 210. When 5 pills need to be dispensed, 5 of the dispensing actuators are controlled to operate simultaneously. When 10 pills need to be dispensed, 10 of the dispensing actuators are controlled to operate simultaneously. When 24 pills need to be dispensed, all 12 dispensing actuators can be controlled to operate simultaneously once, and then controlled to operate simultaneously again. Of course, the number of movable pusher plates 210 is not limited to 12; it can be 24, 30, or more.

[0028] See Figure 4 The sorting ring 201 has multiple radial guide grooves 212 around its periphery, and each of the movable pusher plates 210 slides and extends along the corresponding radial guide groove 212. In this embodiment, the sorting ring 201 is composed of two parts, an upper body and a lower body. The radial guide grooves 212 are located at the bottom end of the upper body. The lower body is used to install the discharge actuator and cooperates with the upper body to limit the movable pusher plate 210. The left and right widths of the radial guide grooves 212 correspond to the left and right widths of the movable pusher plate 210, and also limit the movable pusher plate 210.

[0029] In this embodiment, the discharge actuator is a push-pull electromagnet 213, and the telescopic rod of the push-pull electromagnet 213 is fixedly connected to one end of the movable pusher plate 210. The push-pull electromagnet 213 is a miniature type, which has two advantages: firstly, its small structural size and small space occupation; secondly, its electromagnetically controlled telescopic action is fast, which can improve the discharge speed and increase the efficiency of high-frequency operation. Of course, the discharge actuator is not limited to a push-pull electromagnet; it can also be other telescopic mechanisms, such as a telescopic rod.

[0030] Because the pills are roughly elliptical in shape, their posture within the sorting and feeding channel 207 and the pill outlet 211 is random; they may be upright, flat, or tilted. To ensure that pills of various postures can be successfully pushed out by the movable pusher plate 210 one at a time, a reserved gap 214 is provided between the top of the movable pusher plate 210 and the bottom of the sorting and feeding channel 207. The height of the pill outlet 211 of the movable pusher plate 210 is equal to the height of a flattened pill. See [link to relevant documentation]. Figure 9At this time, the reserved gap 214 can accommodate 1 / 2 of a pill. When the movable pusher plate 210 extends, the pill located in the reserved gap 214 will not be pushed out or stuck. The height of the pill outlet 211 of the movable pusher plate 210 plus the height of the reserved gap 214 is equal to the height of the upright pill. See [reference needed]. Figure 10 .

[0031] Since the sorting ring 201 does not accumulate a large number of drug particles, the drug particles are very loose and easy to move inside and in the sorting and feeding channel 207. When the movable pusher plate 210 pushes the drug outward, when the movable pusher plate 210 moves horizontally, the upper surface of the movable pusher plate 210 will contact the lower surface of the next drug particle to be fed above, relative to the cutter. Since the drug particles are very loose and easy to move, the upper drug particles will naturally move upward to avoid it, and there will be no jamming. At the same time, since the movable pusher plate 210 extends and retracts very quickly, its combination with the loose feeding of drug particles and the setting of the reserved gap 214 can ensure that drug particles of various postures are pushed out by the movable pusher plate 210 one by one each time, without jamming.

[0032] In this embodiment, the diameter of the granules is about 3 mm, the thickness is about 2 mm, and the straight-line distance when the granules are tilted is about 3.7 mm. Therefore, the inner diameter of the sorting and feeding channel 207 is 3.8 mm, the diameter of the granule outlet 211 is 4 mm, the height is 2 mm, and the height of the reserved gap 214 is 1 mm.

[0033] Below the sorting and feeding device 200, there is a corresponding medicine receiving tank 300. The medicine receiving tank 300 is fixed on the mounting frame. The top opening of the medicine receiving tank 300 is located outside the plurality of movable pusher plates 210. Since the plurality of movable pusher plates 210 are arranged circumferentially, when the movable pusher plates 210 are extended, the medicine particles will fall downward into the medicine receiving tank 300. Therefore, the top opening of the medicine receiving tank 300 is located outside the movable pusher plates 210 in the extended state.

[0034] The receiving tank 300 is a conical tank with a narrowed bottom. A drug counter is provided at the discharge port at the bottom of the receiving tank 300. The drug counter is used to calculate the number of drug particles discharged and feed it back to the controller.

[0035] The storage tank 100 can be equipped with a sensor for measuring the internal height. When the height of the medicine particles measured by the sensor is lower than a certain height, medicine is automatically added to the storage tank 100 to ensure that there is always a sufficient number of medicine particles in the storage tank 100 during the discharge process.

[0036] The working principle of this embodiment is as follows: Before discharge, the screening drive mechanism is activated in advance, so that the medicine particles in the medicine storage tank 100 fall into the slowing platform 209, and are then guided by the guide cone 208 to fall onto the storage ring platform 206. As the sorting ring 201 rotates back and forth, the medicine particles gradually enter the sorting and feeding channel 207 in an orderly manner, filling the sorting and feeding channel 207, waiting for the medicine particles to be discharged. When the medicine box moves to the bottom of the discharge port of the medicine receiving tank 300 under the drive of the conveyor line, the controller receives the instruction to control the corresponding number of discharge actuators to operate, and discharge the corresponding number of medicine pellets through the movable pusher plate 210. The pellets fall into the medicine box through the medicine storage tank 100 and the medicine counter. The medicine box then enters the next process under the drive of the conveyor.

[0037] The quantitative sorting unit also includes a controller, which controls the dispensing execution quantity of the dispensing actuator. The number of dispensing pills detected by the pill counter is transmitted to the controller. The controller compares the detected number of dispensing pills with the dispensing execution quantity. If the number of dispensing pills is equal to the dispensing execution quantity, the dispensing of pills is deemed qualified. If the number of dispensing pills is not equal to the dispensing execution quantity, the dispensing of pills is deemed unqualified.

[0038] As the pills pass through the pill counter, the counter detects the number of pills dispensed and sends feedback to the controller. The controller compares this number with the number dispensed by the dispensing actuator. If the numbers match, the dispensing is accurate and error-free, and the pill box continues to move to the next sorting unit. If the numbers differ, the dispensing is defective, the controller issues an alarm, and staff promptly inspect the box to determine if a dispensing actuator has malfunctioned or if pills are stuck. This feedback mechanism achieves closed-loop control.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pharmaceutical granule sorting and feeding mechanism, characterized in that, The system includes a mounting frame on which a sorting ring and a screening drive mechanism are rotatably mounted. The inner wall of the sorting ring is provided with a storage ring platform, on which multiple vertically arranged sorting and feeding channels are distributed. The sorting ring also has a guide cone that slopes downward from the center to the storage ring platform, and a buffer platform is provided at the top center of the guide cone. Below each sorting and feeding channel, there is a movable pusher plate and a discharge execution mechanism that drives each movable pusher plate to extend and retract radially along the sorting ring. Each movable pusher plate has a granule discharge port corresponding to each sorting and feeding channel.

2. The pharmaceutical granule sorting and feeding mechanism as described in claim 1, characterized in that: When the movable pusher plate is retracted, the granule outlet is located below the sorting and feeding channel; when the movable pusher plate is extended, the granule outlet is located outside the sorting ring.

3. The pharmaceutical granule sorting and feeding mechanism as described in claim 1, characterized in that: The sorting ring is provided with multiple radial guide grooves around its periphery, and each of the movable pusher plates slides along the corresponding radial guide groove.

4. The pharmaceutical granule sorting and feeding mechanism as described in claim 1, characterized in that: There is a reserved gap between the top of the movable pusher plate and the bottom of the sorting and unloading channel.

5. The pharmaceutical granule sorting and feeding mechanism as described in claim 1, characterized in that: The discharge actuator is a push-pull electromagnet, and the telescopic rod of the push-pull electromagnet is fixedly connected to one end of the movable push plate.

6. The pharmaceutical granule sorting and feeding mechanism as described in claim 1, characterized in that: The outer periphery of the sorting ring is provided with a transmission part, which is connected to the screening drive mechanism. The screening drive mechanism drives the sorting ring to rotate back and forth.

7. A pharmaceutical granule sorting and feeding mechanism as described in claim 6, characterized in that: The transmission part is a transmission gear located on the outer periphery of the sorting ring. The screening drive mechanism includes a motor, and the output end of the motor is provided with a power gear. The power gear and the transmission gear are connected by a toothed belt.

8. The pharmaceutical granule sorting and feeding mechanism as described in claim 1, characterized in that: A medicine storage tank is provided above the sorting and unloading mechanism. The medicine storage tank is fixed on the mounting frame, and the bottom discharge port of the medicine storage tank extends into the sorting ring body and is located above the slowing platform.

9. The pharmaceutical granule sorting and feeding mechanism as described in claim 1, characterized in that: Below the sorting and feeding mechanism is a corresponding medicine receiving tank, which is fixed on the mounting frame. The top opening of the medicine receiving tank is located outside the multiple movable push plates, and a medicine counter is correspondingly provided at the bottom discharge port of the medicine receiving tank.

10. A pharmaceutical granule sorting and feeding mechanism as described in claim 9, characterized in that: It also includes a controller, which controls the number of discharge executions of the discharge actuator. The number of discharge particles detected by the particle counter is transmitted to the controller, which compares the detected number of discharge particles with the number of discharge executions.

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