Tablet subpackaging and weighing system

Abstract

The invention relates to the technical field of tablet subpackaging, in particular to a tablet subpackaging and weighing system which comprises a tablet subpackaging mechanism, the tablet subpackaging mechanism comprises a primary screening module, a powder screening module, a fine sorting module, a weighing module, a fine control module and a subpackaging module, and a quantitative medicine bearing mechanism is arranged at the upper end of the subpackaging module. The multiple modules including the primary screening module, the powder screening module, the fine separation module, the weighing module, the fine control module and the subpackaging module are integrated, a quantitative medicine bearing mechanism and a medicine falling judgment mechanism are matched, high-precision quantitative control is achieved, dosage errors are reduced, a rotary medicine conveying assembly and a quantitative subpackaging assembly are matched with each other, stable quantitative subpackaging of tablets is guaranteed, and the quantitative subpackaging efficiency is improved. In addition, it can be guaranteed that defective tablets can be recognized and removed in time, tablet dust generated in the sub-packaging process can be effectively recycled, the dust and the defective tablets are prevented from entering sub-packaged products, influence on machine operation and the efficacy and quality of the sub-packaged products is prevented, and the quality and sub-packaging efficiency of the sub-packaged products are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of tablet packaging, in particular to a tablet packaging weighing system. Background Art

[0002] In the pharmaceutical industry, tablet packaging must take into account precision, efficiency, and loss prevention requirements. Traditional manual packaging has problems such as low efficiency, high risk of contamination, and large dosage errors. Existing mechanical packaging equipment is prone to tablet breakage due to vibration and friction, and it is difficult to achieve high-precision quantitative control.

[0003] In the prior art, there is a tablet quantitative packaging equipment with publication number CN221163426U. The above document is equipped with a circular shell, baffle, tightening mechanism, rectangular shell and motor. First, the medicine package is placed directly below the discharge hole, and the tablets are poured from the feed hopper. The tablets fall quantitatively between the two baffles. The motor is started, and the motor drives the circular shell to rotate, and the circular shell drives multiple baffles to rotate. When the tablets between the two baffles rotate to the discharge hole, the tablets fall into the tablet package through the discharge hole, which is convenient for quantitative packaging of the tablets.

[0004] However, in actual use, even if the powder of the tablets is screened and filtered when passing through the primary screening module, some tablet powder is still likely to accumulate on the blanking plate during the tablet transportation and blanking process. If it is not cleaned in time, it will follow the tablets into the packaged products. In addition, in the process of quantitative packaging of tablets, some drug fragments will inevitably be generated, which will affect the normal operation of the machine. At the same time, the defective tablets are not effective enough. It is difficult for existing quantitative packaging equipment to remove defective tablets in time, resulting in poor packaging efficiency, thereby affecting the packaging quality of the tablets.

[0005] Therefore, the present invention proposes a tablet packaging weighing system to solve the problem that the existing equipment is difficult to promptly handle tablet dust and defective tablets during quantitative packaging, resulting in poor tablet packaging quality. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a tablet packaging and weighing system to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tablet packaging and weighing system, comprising a tablet packaging mechanism, the tablet packaging mechanism comprising a primary screening module, a powder screening module, a fine separation module, a weighing module, a fine control module and a packaging module, the upper end of the packaging module is provided with a quantitative medicine receiving mechanism, the lower end of the quantitative medicine receiving mechanism is provided with a medicine drop determination mechanism, the quantitative medicine receiving mechanism comprises a mounting plate, a support frame, a rotating medicine delivery component and a quantitative packaging component, the support frame is fixedly mounted on both sides of the mounting plate, the inner side of the support frame is provided with a medicine drop bin plate, the fine control module is arranged on one side of the medicine drop bin plate, and the weighing module is provided on the upper end of the packaging module. The module is located directly above the medicine drop bin plate, and the rotating medicine delivery component includes a fixed beam plate and a damaged medicine circulation groove. A circular groove is provided on the central inner wall of the fixed beam plate, and the fixed beam plate is movably mounted on the upper end of the medicine drop bin plate. The upper end of the damaged medicine circulation groove is connected to one side of the fixed beam plate, and the other end of the damaged medicine circulation groove extends to the upper end of the packaging module. The quantitative packaging component includes a protective circular partition, a driving part, a rotating part, a material receiving part and a powder guide part. The protective circular partition is fixedly mounted on one end of the fixed beam plate, and the rotating part, the material receiving part and the powder guide part are all arranged on the inner side of the circular groove and at the output end of the driving part.

[0008] Preferably, the medicine dropping bin plate is fixedly mounted on the inner side of the support frame, and an embedded outer plate is fixedly mounted on one side of the medicine dropping bin plate by bolts, and a partition groove plate is provided between the embedded outer plate and the inner side of the medicine dropping bin plate, and a drop pipe is fixedly connected to the lower end of the medicine dropping bin plate, and a mounting seat is fixedly mounted on the outer surface of the drop pipe, and both sides of the mounting seat are fixedly connected to the inner side of the lower end of the support frame, and a medicine dropping baffle is rotatably connected to the inner side of the mounting seat by a pin shaft, and an upper surface of one side of the medicine dropping baffle is movably abutted against the lower end of the embedded outer plate.

[0009] Preferably, a feed port is provided at the upper end of the circular groove, a discharge port is provided at the lower end of the circular groove, a rejection port is provided on the side of the circular groove close to the damaged medicine circulation groove, an electromagnetic induction block is provided at the upper end of the rejection port, and the electromagnetic induction blocks are arranged in a horizontal array.

[0010] Preferably, the driving member includes a rotating plate, a motor and a belt group, the rotating plate is rotatably mounted on the inner surface of the protective circular partition, the rotating member includes a hollow shaft, the central inner surface of the rotating plate is fixedly connected to the outer surface of one end of the hollow shaft, the end of the rotating plate close to the protective circular partition extends to the outside of the protective circular partition, a fan is fixedly mounted on the outside of the protective circular partition, and the output end of the fan is fixedly connected to the hollow shaft.

[0011] Preferably, a rail groove is provided on one side of the rotating plate, the inner surface of the rail groove is rotatably connected to a gear ring, the inner surface of the gear ring is meshed and rotatably engaged with a gear, and the gears are provided in multiple groups, and the central inner surfaces of the multiple groups of gears are fixedly connected to a connecting rod, and the inner surfaces of the connecting rods are rotatably connected to the inner walls of the rotating plate and the fixed beam plate respectively.

[0012] Preferably, the rotating member also includes a fixed plate, a sieve cylinder and a partition plate, the powder guide member includes a powder shaking ramp plate, one end of the powder shaking ramp plate is fixedly connected to the outer surface of the fixed plate, and the other end of the powder shaking ramp plate is slidingly connected to the outer surface of the sieve cylinder, one end of the fixed plate is fixedly connected to the outer annular surface of the hollow shaft, the other end of the fixed plate is fixedly connected to the inner annular surface of the sieve cylinder, and the partition plate is fixedly installed on the outer annular surface of the sieve cylinder.

[0013] Preferably, the material receiving member includes an elastic medicine drop mesh, a group of the elastic medicine drop mesh is distributed between the two groups of partition plates, and the two ends of the elastic medicine drop mesh are respectively fixedly connected to the outer surface of the partition plate, and the outer surface of the elastic medicine drop mesh is evenly distributed with capillary support rods.

[0014] Preferably, the elastic medicine dropping mesh is fixedly connected to abutment spring plates on one side away from the capillary support rod, and the abutment spring plates are provided in two groups and are symmetrically distributed about the central axis of the elastic medicine dropping mesh, and the other ends of the abutment spring plates are respectively fixedly connected to the outer surface of the partition plate.

[0015] Preferably, a limiting sleeve is fixedly installed on the inner wall of the filter cylinder, a limiting arc groove is opened on the inner wall of the limiting sleeve, the inner surface of the limiting sleeve is movably connected with a movable push rod, a boss is fixedly installed on the outer wall of one side of the movable push rod, and the outer surface of the boss is movably connected to the inner surface of the limiting arc groove.

[0016] Preferably, the outer surface of the upper end of the movable push rod is movably in contact with the inner surface of the elastic medicine dropping mesh, and a magnetic cam plate is fixedly installed on the end of the movable push rod away from the elastic medicine dropping mesh, the magnetic cam plate is electrically connected to the electromagnetic induction block, and the outer surface of the magnetic cam plate is movably in contact with the outer surface of the powder shaking slope plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention proposes a tablet packaging and weighing system, which integrates multiple modules including a primary screening module, a powder screening module, a fine separation module, a weighing module, a precision control module and a packaging module, and cooperates with a quantitative drug receiving mechanism and a drug dropping judgment mechanism to achieve high-precision quantitative control and reduce dosage errors. The mutual cooperation of the rotary drug delivery component and the quantitative packaging component not only ensures stable quantitative packaging of tablets, but also ensures timely identification and removal of defective tablets, and can effectively recycle tablet dust generated during the packaging process, avoiding dust and defective tablets from entering the packaged products, preventing the operation of the machine and the efficacy and quality of the packaged products from being affected, and further improving the quality and packaging efficiency of the packaged products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 ;

[0021] Figure 3 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 ;

[0022] Figure 4 for Figure 2 Schematic diagram of the half-section structure;

[0023] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at A;

[0024] Figure 6 It is a bottom view structural diagram of the medicine dropping determination mechanism and the quantitative medicine receiving mechanism of the present invention;

[0025] Figure 7 This is a schematic structural diagram of the opening state of the blanking pipe outlet of the present invention;

[0026] Figure 8 This is a structural diagram of the present invention wherein the embedded outer plate is detached from the medicine drop bin plate;

[0027] Figure 9 This is a schematic diagram of the partial connection structure between the quantitative medicine receiving mechanism and the precision medicine module of the present invention;

[0028] Figure 10 This is a schematic diagram of the connection structure between the damaged medicine circulation channel and the quantitative medicine receiving mechanism of the present invention;

[0029] Figure 11 It is a schematic diagram of the partial cross-section structure of the precision analysis module of the present invention;

[0030] Figure 12 It is a schematic diagram of the half-section structure of the quantitative medicine receiving mechanism of the present invention;

[0031] Figure 13 for Figure 12 A schematic diagram of the enlarged structure at point B;

[0032] Figure 14 Schematic diagram of the partial structure of the quantitative packaging component of the present invention;

[0033] Figure 15 It is a schematic diagram of the partial disassembly structure of the material receiving member of the present invention;

[0034] Figure 16 This is a schematic diagram of the connection structure between the rotating member and the powder guide member of the present invention;

[0035] Figure 17 for Figure 16 Schematic diagram of the enlarged structure at C;

[0036] Figure 18 It is a schematic diagram of the connection structure between the precision control module and the medicine drop bin plate of the present invention.

[0037] In the figure: 1. Tablet packaging mechanism; 11. Primary screening module; 12. Powder screening module; 13. Fine separation module; 131. Material distribution trough plate; 132. Top of the medicine distribution bin; 14. Weighing module; 15. Fine control module; 151. Baffle plate No. 1; 152. Baffle plate No. 2; 153. Baffle plate No. 3; 154. Baffle plate No. 4; 16. Packing module; 161. Swing baffle; 2. Quantitative medicine holding mechanism; 21. Mounting plate; 22. Support frame; 23. Medicine drop bin plate; 231. Embedded outer plate; 232. Dropping pipe; 24. Fixed beam plate; 241. Damaged medicine flow trough; 240. Circular trough; 2401. Feed port; 2402. Discharge port; 2403. Rejection port; 242. Electromagnetic induction block; 25. Quantitative packaging assembly; 2 51. Protective circular partition; 2511. Fan; 2512. Rotating plate; 2513. Gear ring; 2514. Gear; 2515. Connecting rod; 2516. Motor; 2517. Belt assembly; 252. Hollow shaft; 2521. Fixed plate; 2522. Screen cartridge; 25220. Slide; 2523. Partition plate; 253. Elastic medicine drop mesh; 2530. Capillary support rod; 2531. Abutment spring; 2532. Movable abutment rod; 25321. Boss; 25322. Magnetic cam plate; 2533. Limiting sleeve; 25330. Limiting arc groove; 254. Powder shaking ramp; 2541. Rack; 2542. Transmission gear; 3. Medicine drop determination mechanism; 31. Mounting seat; 32. Medicine drop baffle. DETAILED DESCRIPTION

[0038] In order to clearly and completely describe the objectives and technical solutions of the present invention and make its advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] For example 1, please refer to Figure 1-18The present invention provides a technical solution: a tablet packaging and weighing system, including a tablet packaging mechanism 1, the tablet packaging mechanism 1 includes a primary screening module 11, a powder screening module 12, a fine separation module 13, a weighing module 14, a fine control module 15 and a packaging module 16, the fine separation module 13 is composed of a material separation trough plate 131 and a medicine separation bin top 132, the fine control module 15 is composed of a first baffle 151, a second baffle 152, a third baffle 153 and a fourth baffle 154, the first baffle 151, the second baffle 152, the third baffle 153 and the fourth baffle 154 are all controlled by an electric telescopic rod; the inner side of the packaging module 16 is movably connected with a swing baffle 161, and the lower end of the packaging module 16 is provided with an OK channel and an NG channel; the upper end of the packaging module 16 is provided with There is a quantitative medicine receiving mechanism 2, and a medicine dropping judgment mechanism 3 is arranged below the quantitative medicine receiving mechanism 2. The quantitative medicine receiving mechanism 2 includes a mounting plate 21, a support frame 22, a rotary medicine delivery component and a quantitative packaging component 25. The support frame 22 is fixedly mounted on both sides of the mounting plate 21. A medicine dropping bin plate 23 is arranged on the inner side of the support frame 22. The precision control module 15 is arranged on one side of the medicine dropping bin plate 23, and the weighing module 14 is located directly above the medicine dropping bin plate 23. The rotary medicine delivery component includes a fixed beam plate 24 and a damaged medicine flow groove 241. A circular groove 240 is opened on the central inner wall of the fixed beam plate 24. The fixed beam plate 24 is movably mounted on the upper end of the medicine dropping bin plate 23. The upper end of the damaged medicine flow groove 241 is connected to one side of the fixed beam plate 24, and the other end of the damaged medicine flow groove 241 extends At the upper end of the packaging module 16, the quantitative packaging assembly 25 includes a protective circular partition 251, a driving member, a rotating member, a material receiving member and a powder guide member. The protective circular partition 251 is fixedly mounted on one end of the fixed beam plate 24, and the rotating member, the material receiving member and the powder guide member are all arranged on the inner side of the circular groove 240 and at the output end of the driving member; the medicine drop bin plate 23 is fixedly mounted on the inner side of the support frame 22, and an embedded outer plate 231 is fixedly installed on one side of the medicine drop bin plate 23 by bolts, and a partition groove plate is provided between the embedded outer plate 231 and the inner side of the medicine drop bin plate 23, and the lower end of the medicine drop bin plate 23 is fixedly connected to a drop pipe 232, and the outer surface of the drop pipe 232 is fixedly mounted with a mounting seat 31, and both sides of the mounting seat 31 are fixedly connected to the inner side of the lower end of the support frame 22. The inner side of the mounting seat 31 is rotatably connected to a medicine drop baffle 32 through a pin shaft, and the upper surface of one side of the medicine drop baffle 32 is movably abutted against the lower end of the embedded outer plate 231; a feed port 2401 is provided at the upper end of the circular groove 240, and a discharge port 2402 is provided at the lower end of the circular groove 240; a rejection port 2403 is provided on the side of the circular groove 240 close to the damaged medicine flow slot 241, and an electromagnetic induction block 242 is provided at the upper end of the rejection port 2403, and the electromagnetic induction block 242 is arranged in a horizontal array; the medicine drop baffle 32 is electrically connected to the weighing module 14, and a sensor is provided at the bottom of the medicine drop baffle 32 to sense the amount of falling medicine in real time. When 100% of the predetermined amount of medicine is reached, the medicine drop baffle 32 opens and sends a signal to the swing baffle 161 to respond quickly;

[0040] In this embodiment, when the tablets are packaged, the hopper of the primary screening module 11 vibrates, the tablets are preliminarily screened and filtered, and then transported to the powder screening module 12, where the tablets are preliminarily sorted according to rules, and the residual dust is filtered and transported to the fine separation module 13. The conveying frequency of the fine separation module 13 is adjustable, and the tablets of the fine separation module 13 are sent to the fine control module 15. In the initial state, the first baffle 151, the second baffle 152, the third baffle 153 and the fourth baffle 154 of the fine control module 15 are in all open states, and the tablets fall directly into the quantitative medicine holding mechanism 2, and the quantitative medicine holding mechanism 2 outputs the current weight in real time. The tablets pass through the output port of the material distribution trough plate 131 and fall into the medicine distribution bin top 132 and enter the fixed beam plate 24 of each area. The quantitative packaging component 25 is electrically connected to the weighing module 14, and the real-time sensing should be The medicine amount falls in front, and the tablets here fall into the fixed beam plate 24 one by one. When one tablet falls, the quantitative packaging component 25 rotates. When the medicine amount reaches 70% of the final medicine amount, the No. 1 baffle 151 is closed. When the medicine amount reaches 80%, the No. 2 baffle 152 is closed. When the medicine amount reaches 90%, the No. 3 baffle 153 is closed, the conveying frequency of the fine separation module 13 is reduced, the primary screening module 11 and the powder screening module 12 are closed, so that the conveying speed of the tablets is reduced to ensure that a single tablet is added. When the medicine amount reaches 100%, the No. 4 baffle 154 and the fine separation module 13 are closed immediately to complete the tablet sorting. Finally, the current medicine amount is confirmed. The packaging module 16 judges to open the OK or NG channel according to the final medicine amount. At this time, the medicine drop baffle 32 is opened, and the tablets are loaded into the product or flow into the NG channel.

[0041] Example 2, refer to the attached Figure 1-18 On the basis of the first embodiment, in order to realize the quantitative packaging of the tablets, the quantitative packaging component 25 is rotated as a whole:

[0042] The driving member includes a rotating plate 2512, a motor 2516, and a belt assembly 2517. The rotating plate 2512 is rotatably mounted on the inner surface of the protective circular partition 251. The rotating member includes a hollow shaft 252. The central inner surface of the rotating plate 2512 is fixedly connected to the outer surface of one end of the hollow shaft 252. The end of the rotating plate 2512 adjacent to the protective circular partition 251 extends to the outside of the protective circular partition 251. A rail groove is formed on one side of the rotating plate 2512. The inner surface of the rail groove is rotatably connected to a gear ring 2513. The inner surface of the gear ring 2513 is meshed and rotatably engaged with a gear 2514. , there are multiple groups of gears 2514, and the central inner surfaces of the multiple groups of gears 2514 are fixedly connected with connecting rods 2515, and the inner surfaces of the connecting rods 2515 are rotatably connected to the inner wall of the rotating plate 2512 and the fixed beam plate 24 respectively; the belt group 2517 is composed of a driving pulley, a driven pulley and a belt, and the driving pulley and the driven pulley are rotatably connected by a belt, and the center of the driving pulley is fixedly connected to a center rod, and the center rod is fixedly mounted on the output shaft of the motor 2516, and the central inner surface of the driven pulley is fixedly connected to the outer surface of one end of the hollow shaft 252;

[0043] In this embodiment, the tablets enter through the feed port 2401. When the quantitative dispensing assembly 25 needs to be rotated as a whole, the control motor 2516 is turned on. At this time, the output shaft rotates and drives the driving pulley to rotate. At this time, the driven pulley rotates synchronously through the belt transmission and drives the hollow shaft 252 to rotate. Please refer to Figure 12-13 As shown, during the rotation of the hollow shaft 252, the rotating plate 2512 rotates synchronously, and the rotating member connected to the hollow shaft 252 rotates synchronously as a whole. Figure 5 When the quantitative packaging component 25 is controlled to rotate clockwise as a whole, the received tablets arrive at the position of the rejection port 2403. At this time, the electromagnetic induction block 242 recognizes in real time whether the tablet is defective. If the tablet is identified as defective, the tablet is ejected and flows into the NG channel through the damaged medicine flow groove 241. If the tablet is complete, the tablet is not rejected and continues to rotate until it rotates to the position of the discharge port 2402. The tablet falls onto the medicine drop baffle 32. The medicine drop baffle 32 senses the amount of medicine dropped in real time and cooperates with other modules to finally confirm the amount of medicine and whether the product is loaded.

[0044] Example 3, refer to the attached Figure 1-18 Based on the second embodiment, in order to achieve timely treatment of tablet dust:

[0045] A fan 2511 is fixedly installed on the outside of the protective circular partition 251, and the output end of the fan 2511 is fixedly connected to the hollow shaft 252; the rotating member also includes a fixed plate 2521, a screen filter cylinder 2522 and a partition plate 2523, and the powder guide member includes a powder shaking slope plate 254, one end of the powder shaking slope plate 254 is fixedly connected to the outer surface of the fixed plate 2521, and the other end of the powder shaking slope plate 254 is respectively slidably connected to the outer surface of the screen filter cylinder 2522, one end of the fixed plate 2521 is respectively fixedly connected to the outer annular surface of the hollow shaft 252, the other end of the fixed plate 2521 is fixedly connected to the inner annular surface of the screen filter cylinder 2522, and the partition plate 2523 is fixedly installed On the outer annular surface of the sieve cylinder 2522; the material receiving member includes an elastic medicine drop mesh 253, a group of elastic medicine drop meshes 253 are distributed between the two groups of partition plates 2523, and the two ends of the elastic medicine drop mesh 253 are respectively fixedly connected to the outer surface of the partition plate 2523, and the outer surface of the elastic medicine drop mesh 253 is evenly distributed with capillary support rods 2530. The side of the elastic medicine drop mesh 253 away from the capillary support rod 2530 is fixedly connected with an abutting spring piece 2531, and the abutting spring piece 2531 is provided with two groups and is symmetrically distributed about the central axis of the elastic medicine drop mesh 253, and the other ends of the abutting spring piece 2531 are respectively fixedly connected to the outer surface of the partition plate 2523;

[0046] In this embodiment, Figure 13 As shown, one end of the hollow shaft 252 passes through the inner wall of the rotating plate 2512 and is connected to the fan 2511. When the tablets are quantitatively packaged, the tablets fall between the two adjacent groups of partition plates 2523. Under the action of the fan 2511, the tablets are pressed against the surface of the elastic medicine-dropping mesh 253 under the action of negative pressure. The close contact of the tablets can reduce the disordered movement of the tablets during transportation to a certain extent, make the movement of the tablets more orderly, and help improve the stability of tablet reception and transportation. At the same time, it reduces the collision of tablets and reduces the risk of tablet damage. At this time, the dust on the surface of the tablets and inside the system passes through the elastic medicine-dropping mesh 253 and the filter cylinder 2522 and enters the interior of the fixed plate 2521. It is worth noting that the elastic medicine-dropping mesh 253 is a memory spring. When the tablets fall on the capillary support rod 2530, it plays a supporting role and maintains a certain gap with the surface of the elastic medicine-dropping mesh 253 to facilitate the recovery of dust. In addition, the capillary support rod 2530 can absorb the kinetic energy of the tablets when they fall, reduce direct collisions with the tablets, avoid vertical free fall of the tablets, and disperse the impact force.

[0047] Example 4, refer to the attached Figure 1-18 On the basis of the third embodiment, in order to further clean the dust adhering to the surface of the powder shaking ramp 254:

[0048] The powder guide member further includes a rack 2541 and a transmission gear piece 2542. A chute 25220 is formed on the inner surface of the sieve filter cylinder 2522. The rack 2541 is slidably installed inside the chute 25220. The rack 2541 has a "C"-shaped plate structure. One end of the rack 2541 away from the fixing plate 2521 is fixedly connected to one end of the powder shaking slope plate 254. One side of the inner surface of the rack 2541 is a tooth surface and the other side is a flat surface. The outer surface of the tooth surface meshes and rotates with the outer surface of the transmission gear piece 2542. The inner surface of the center of the transmission gear piece 2542 is fixedly connected to the outer surface of the connecting rod 2515;

[0049] In this embodiment, the synchronous rotation of multiple groups of transmission gear pieces 2542 is realized by the rotation of the connecting rod 2515. At this time, the outer surface of the transmission gear piece 2542 is adapted to mesh with the tooth surface of the rack 2541, so as to drive multiple groups of racks 2541 to move horizontally along the chute 25220. The movement of the rack 2541 can drive one end of the powder shaking slope plate 254 to slide in and out on the surface of the sieve filter cylinder 2522, making the powder shaking slope plate 254 in the shape of a petal repeatedly contract, so as to accelerate the recovery of the tablet dust falling on the surface of the powder shaking slope plate 254.

[0050] Example Five. Referring to the appendix Figure 1-18 , on the basis of Example Four, in order to achieve the rejection of defective tablets and ensure the quality of the tablet product packaging:

[0051] A limiting sleeve 2533 is fixedly installed on the inner wall of the sieve filter cylinder 2522. A limiting arc groove 25330 is formed on the inner wall of the limiting sleeve 2533. A movable abutting rod 2532 is movably connected to the inner surface of the limiting sleeve 2533. A convex column 25321 is fixedly installed on the outer wall of one side of the movable abutting rod 2532. The outer surface of the convex column 25321 is movably connected to the inner surface of the limiting arc groove 25330; The outer surface of the upper end of the movable abutting rod 2532 is movably abutted against the inner surface of the elastic medicine dropping mesh piece 253. One end of the movable abutting rod 2532 away from the elastic medicine dropping mesh piece 253 is fixedly installed with a magnetic attraction cam plate 25322. The magnetic attraction cam plate 25322 is electrically connected to the electromagnetic induction block 242. The outer surface of the magnetic attraction cam plate 25322 is movably in contact with the outer surface of the powder shaking slope plate 254;

[0052] In this embodiment, referring to Figure 14-15As shown, when the electromagnetic induction block 242 identifies that the tablet on the elastic medicine drop mesh 253 is a defective tablet, it promptly feeds back to the weighing module 14. At this time, the electromagnetic induction block 242 issues a control command to drive the magnetic cam plate 25322 to approach one side of the electromagnetic induction block 242. At this time, the magnetic cam plate 25322 and the movable push rod 2532 are rotated and move upward under the limiting action of the limiting arc groove 25330 and the protruding column 25321. At this time, the end of the movable push rod 2532 away from the magnetic cam plate 25322 pushes the bottom side of the elastic medicine drop mesh 253, so that the tablet supported on the elastic medicine drop mesh 253 is quickly ejected out. It enters the rejection port 2403 and finally enters the NG channel through the damaged medicine flow groove 241. After the tablet is ejected, the electromagnetic induction block 242 is closed, and the magnetic cam plate 25322 is no longer affected by the magnetic attraction, and then returns to its initial position under the action of gravity. Under the reverse elastic action of the abutting spring piece 2531, the elastic medicine falling mesh 253 and the movable abutting rod 2532 are accelerated to reset; it is worth noting that when the magnetic cam plate 25322 and the movable abutting rod 2532 rotate or weigh, they can push the powder shaking ramps 254 on both sides thereof, thereby achieving further shaking of the dust on its surface, further accelerating the recovery of the dust, and ensuring the product packaging quality of the tablets.

[0053] The working principle and use process of the present invention are as follows: First, the hopper of the primary screening module 11 vibrates, and the tablets are preliminarily screened and filtered, and then transported to the powder screening module 12. The powder screening module 12 preliminarily sorts the tablets and filters the residual dust, and then transports them to the fine separation module 13. The conveying frequency of the fine separation module 13 is adjustable, and the tablets are sent to the fine control module 15. In the initial state, the first baffle 151, the second baffle 152, the third baffle 153 and the fourth baffle 154 of the fine control module 15 are all opened, and the tablets fall into the quantitative medicine receiving mechanism 2. When the tablets fall into the medicine distribution bin top 132 through the output port of the distribution trough plate 131 and enter each In the fixed beam plate 24 of the area, the quantitative packaging component 25 is electrically connected to the weighing module 14, and the current amount of medicine falling in is sensed in real time. The tablets fall into the fixed beam plate 24 one by one. The quantitative packaging component 25 rotates once each tablet falls. When the amount of medicine reaches 70%, 80%, and 90% of the final amount respectively, the No. 1 baffle 151, the No. 2 baffle 152, and the No. 3 baffle 153 are closed in sequence, the conveying frequency of the fine separation module 13 is reduced, the primary screening module 11 and the powder screening module 12 are closed to ensure that a single tablet is added. When the amount of medicine reaches 100%, the No. 4 baffle 154 and the fine separation module 13 are immediately closed, and the process is completed. The tablets are sorted and the current amount of medicine is finally confirmed. A sensor is set at the bottom of the medicine drop baffle 32 to sense the amount of medicine dropped in real time. When it reaches 100% of the set amount of medicine, the medicine drop baffle 32 opens and sends a signal to the swing baffle 161 to respond quickly. The tablets are loaded into the product or flow into the NG channel. Subsequently, when the electromagnetic induction block 242 identifies that the tablet on the elastic medicine drop mesh 253 is a defective tablet, it promptly feeds back to the weighing module 14. The electromagnetic induction block 242 issues a control command to drive the magnetic cam plate 25322 to approach the side of the electromagnetic induction block 242. The magnetic cam plate 25322 and the movable stop plate 25322 are moved closer to each other. Under the limiting action of the limiting arc groove 25330 and the protruding column 25321, the rod 2532 moves upward in a rotating state, and the movable push rod 2532 pushes the bottom side of the elastic medicine drop mesh 253 away from the end of the magnetic cam plate 25322, so that the tablets supported on the elastic medicine drop mesh 253 are quickly pushed outward and enter the rejection port 2403, and finally enter the NG channel through the damaged medicine flow slot 241. When the tablet is identified as complete, the tablet continues to rotate to the position of the discharge port 2402 and falls onto the medicine drop baffle 32. The medicine drop baffle 32 senses the amount of medicine dropped in real time, and cooperates with other modules to confirm the amount of medicine and whether the product is loaded.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tablet packaging and weighing system, comprising a tablet packaging mechanism (1), wherein the tablet packaging mechanism (1) comprises a primary screening module (11), a powder screening module (12), a fine separation module (13), a weighing module (14), a fine control module (15) and a packaging module (16), characterized in that: The upper end of the packaging module (16) is provided with a quantitative medicine receiving mechanism (2), and a medicine drop determination mechanism (3) is provided below the quantitative medicine receiving mechanism (2). The quantitative medicine receiving mechanism (2) includes a mounting plate (21), a support frame (22), a rotary medicine delivery component, and a quantitative packaging component (25). The support frame (22) is fixedly mounted on both sides of the mounting plate (21). A medicine drop bin plate (23) is provided on the inner side of the support frame (22). The precision control module (15) is provided on one side of the medicine drop bin plate (23), and the weighing module (14) is located directly above the medicine drop bin plate (23). The rotary medicine delivery component includes a fixed beam plate (24) and a damaged medicine flow trough (241). A circular groove (240) is provided on the central inner wall of the fixed beam plate (24). The fixed beam plate (24) is movably mounted on the upper end of the medicine drop bin plate (23). The upper end of the damaged medicine flow groove (241) is connected to one side of the fixed beam plate (24), and the other end of the damaged medicine flow groove (241) extends to the upper end of the packaging module (16). The quantitative packaging component (25) includes a protective circular partition (251), a driving member, a rotating member, a material receiving member, and a medicine powder guide member. The protective circular partition (251) is fixedly mounted on one end of the fixed beam plate (24). The rotating member, the material receiving member, and the medicine powder guide member are all arranged on the inner side of the circular groove (240) and at the output end of the driving member.

2. A tablet packaging and weighing system according to claim 1, characterized in that: The medicine drop bin plate (23) is fixedly mounted on the inner side of the support frame (22); an embedded outer plate (231) is fixedly mounted on one side of the medicine drop bin plate (23) by means of bolts; a partition plate is provided between the embedded outer plate (231) and the inner side of the medicine drop bin plate (23); a drop tube (232) is fixedly connected to the lower end of the medicine drop bin plate (23); a mounting seat (31) is fixedly mounted on the outer surface of the drop tube (232); both sides of the mounting seat (31) are fixedly connected to the inner side of the lower end of the support frame (22); a medicine drop baffle (32) is rotatably connected to the inner side of the mounting seat (31) by means of a pin shaft; an upper surface of one side of the medicine drop baffle (32) is movably abutted against the lower end of the embedded outer plate (231).

3. A tablet packaging and weighing system according to claim 1, characterized in that: The upper end of the circular groove (240) is provided with a feed port (2401), the lower end of the circular groove (240) is provided with a discharge port (2402), and the side of the circular groove (240) close to the damaged medicine circulation groove (241) is provided with a rejection port (2403), and the upper end of the rejection port (2403) is provided with an electromagnetic induction block (242), and the electromagnetic induction blocks (242) are arranged in a horizontal array.

4. A tablet packaging and weighing system according to claim 1, characterized in that: The driving member comprises a rotating plate (2512), a motor (2516) and a belt group (2517); the rotating plate (2512) is rotatably mounted on the inner surface of the protective circular partition (251); the rotating member comprises a hollow shaft (252); the central inner surface of the rotating plate (2512) is fixedly connected to the outer surface of one end of the hollow shaft (252); the end of the rotating plate (2512) close to the protective circular partition (251) extends to the outer side of the protective circular partition (251); a fan (2511) is fixedly mounted on the outer side of the protective circular partition (251); and the output end of the fan (2511) is fixedly connected to the hollow shaft (252).

5. A tablet packaging and weighing system according to claim 4, characterized in that: A rail groove is provided on one side of the rotating plate (2512), and a gear ring (2513) is rotatably connected to the inner surface of the rail groove. A gear (2514) is meshed and rotatably engaged on the inner surface of the gear ring (2513). Multiple groups of gears (2514) are provided, and the central inner surfaces of the multiple groups of gears (2514) are fixedly connected to connecting rods (2515). The inner surfaces of the connecting rods (2515) are rotatably connected to the rotating plate (2512) and the inner walls of the fixed beam plate (24), respectively.

6. A tablet packaging and weighing system according to claim 4, characterized in that: The rotating member further comprises a fixed plate (2521), a sieve filter cylinder (2522) and a partition plate (2523); the powder guide member comprises a powder shaking ramp plate (254); one end of the powder shaking ramp plate (254) is fixedly connected to the outer surface of the fixed plate (2521), and the other end of the powder shaking ramp plate (254) is slidingly connected to the outer surface of the sieve filter cylinder (2522); one end of the fixed plate (2521) is fixedly connected to the outer annular surface of the hollow shaft (252), and the other end of the fixed plate (2521) is fixedly connected to the inner annular surface of the sieve filter cylinder (2522); and the partition plate (2523) is fixedly mounted on the outer annular surface of the sieve filter cylinder (2522).

7. A tablet packaging and weighing system according to claim 6, characterized in that: The material receiving member comprises an elastic medicine drop mesh (253), a group of the elastic medicine drop mesh (253) is distributed between the two groups of the partition plates (2523), and the two ends of the elastic medicine drop mesh (253) are respectively fixedly connected to the outer surface of the partition plate (2523), and the outer surface of the elastic medicine drop mesh (253) is evenly distributed with capillary support rods (2530).

8. A tablet packaging and weighing system according to claim 7, characterized in that: Abutment springs (2531) are fixedly connected to one side of the elastic medicine drop mesh (253) away from the capillary support rod (2530), and two groups of abutment springs (2531) are provided and symmetrically distributed about the central axis of the elastic medicine drop mesh (253), and the other ends of the abutment springs (2531) are respectively fixedly connected to the outer surface of the partition plate (2523).

9. The tablet packaging and weighing system according to claim 6, characterized in that: A limiting sleeve (2533) is fixedly installed on the inner wall of the screening cylinder (2522), a limiting arc groove (25330) is provided on the inner wall of the limiting sleeve (2533), a movable push rod (2532) is movably connected to the inner surface of the limiting sleeve (2533), a boss (25321) is fixedly installed on the outer wall of one side of the movable push rod (2532), and the outer surface of the boss (25321) is movably connected to the inner surface of the limiting arc groove (25330).

10. A tablet packaging and weighing system according to claim 9, characterized in that: The outer surface of the upper end of the movable abutment rod (2532) is in movable contact with the inner surface of the elastic medicine-dropping mesh (253), and a magnetic cam plate (25322) is fixedly installed on one end of the movable abutment rod (2532) away from the elastic medicine-dropping mesh (253), the magnetic cam plate (25322) is electrically connected to the electromagnetic induction block (242), and the outer surface of the magnetic cam plate (25322) is in movably contact with the outer surface of the powder-shaking slope plate (254).

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