Automatic weighing and packaging device for traditional Chinese medicine tea bags

Abstract

The invention discloses a traditional Chinese medicine tea bag automatic weighing and packaging device which integrates a control system, a weighing system, a fodder chopper system, a feeding system, a lacing system and a bagging system, and full-process automatic operation is achieved. The control system coordinates all the systems through the controller and the central processing unit, supports manual parameter setting or medical sheet scanning to obtain medicinal material information, and accurately controls the production process. The weighing system is divided into two types, the first type is combined with the screening function to blow materials with different weights to the corresponding hoppers, and the second type completes final accurate weighing. The chopper system realizes equal-proportion cutting of large medicinal materials through an adjustable-tooth-ratio screw rod to adapt to different weight requirements. The feeding system adopts a double-structure design, particles, powder and large medicinal materials are treated respectively, and the discharging fluency is optimized. The bagging system utilizes negative pressure suction and a bag opener for automatic filling, the lacing system completes sealing through a sewing machine, and an outer packaging bag is collected by a collecting hopper after being subjected to high-temperature heat sealing.

Description

Technical Field

[0001] This invention relates to the field of tea bag weighing and packaging equipment technology, specifically to an automatic weighing and packaging device for traditional Chinese medicine tea bags. Background Technology

[0002] In the production of Chinese herbal tea bags, traditional production methods suffer from low automation and insufficient precision. Existing weighing systems mostly employ a single structure, failing to simultaneously meet the dual requirements of sieving and final weighing. This necessitates multiple manual processing steps for large pieces of medicinal material, resulting in low efficiency and a high risk of weight errors. Cutter systems are often designed with fixed spacing, making it difficult to flexibly adjust the cutting ratio according to the weight requirements of the medicinal materials, frequently leading to uneven cutting or waste of medicinal materials.

[0003] The feeding system typically only processes herbs in a single form; granules, powders, and large pieces require separate production lines, increasing equipment costs and production space requirements. The bagging and sealing processes largely rely on manual operation; negative pressure suction is susceptible to dust interference, resulting in low opening efficiency and inconsistent sealing quality, affecting the hygiene, safety, and appearance of the tea bags. Furthermore, insufficient integration of the control system and lagging data transmission between systems make precise, coordinated control throughout the entire process difficult, leading to a trade-off between production efficiency and product quality. This technical solution addresses these issues by integrating multiple systems for collaborative operation, improving the automation level and product quality stability of Chinese herbal tea bag production, and proposes an automatic weighing and packaging device for Chinese herbal tea bags. Summary of the Invention

[0004] The purpose of this invention is to provide a technical solution for an automatic weighing and packaging device for Chinese herbal tea bags, thereby addressing the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following components: a control system, a weighing system, a guillotine system, a feeding system equipped with a sieving function, a belt system, and a bagging system. The control system includes a controller and a central processing unit, as well as connecting lines and data lines connecting the various systems. Both the controller and the central processing unit are equipped with external ports and data interfaces for receiving and transmitting control signals. The weighing system includes two types, namely a first type of weighing system and a second type of weighing system. Both include multiple sections of double-clamp conveyors connected end to end, a protective cover covering the middle section of the double-clamp conveyor, and a funnel fixed to the bottom port of the protective cover. A first photoelectric sensor and an air valve are fixed inside the protective cover. A weight sensor is installed on the inner side of the conveyor belt of the middle section of the double-clamp conveyor. The guillotine system includes multiple guillotine support frames, hydraulic cylinders fixed to the top of the guillotine support frames, and screws with different gear ratios that run horizontally through the multiple guillotine support frames. The drive ends of the screws with different gear ratios are connected to electric motors, and the output ends of the hydraulic cylinders are all connected to screws with equal gear ratios. The bottom ends of the screws with equal gear ratios are connected to guillotines that move up and down inside the guillotine support frames. Furthermore, each guillotine support frame is equipped with a third photoelectric sensor that senses the entry and exit of materials. The feeding system includes two sets of feeding structures, one set located below the guillotine system and the other set located to the right of the guillotine system. Each set of feeding structures includes a housing, a hopper fixed in a ring array inside the housing, and an electronic valve for switching the hopper installed at the bottom of the hopper. A ring of guide bulges is fixed at the bottom of the inner cavity of the housing, and two sets of feeding gears are rotatably arranged between the guide bulges. A second photoelectric sensor and a motor are installed at the discharge port of the housing, and the discharge port of the housing is connected to a conveying trough located above the second type of weighing system. The tying system is located on the right side of the second type of weighing system and includes a platform in front of the middle double-plate conveyor, and a sewing machine mounted above the platform for tying the packaging bags containing materials. The bagging system includes a negative pressure pipe fixed to the upper right of the second type of weighing system, and a first robotic arm installed at the lower right of the negative pressure pipe. A bag opener is installed on the execution arm of the first robotic arm, and a negative pressure fan for sucking and conveying materials is installed inside the negative pressure pipe. A filter screen and a control valve for controlling the opening and closing of the filter screen are also installed inside the negative pressure pipe. An angled conveyor belt is set below the bag opener, and the surface of the angled conveyor belt is coated with adhesive material.

[0005] As a preferred embodiment of the present invention: the controller is equipped with a digital display screen and control buttons on its operating surface, and the controller information receiving end is connected to a QR code scanning terminal that can scan medical slips to obtain information on the type and weight of Chinese medicinal materials.

[0006] As a preferred embodiment of the present invention: a lever system is provided above the first type of weighing system, and an air valve bracket, an air valve and an air compressor connected to a compressed air tank are provided above the lever system, for blowing materials of different weights on the first type of weighing system into different hoppers to achieve screening.

[0007] As a preferred embodiment of the present invention: the lever system includes a lever device, the lever device having a rotary motor, a motor control box connected to the control end of the rotary motor, and a reduction gear set connected to the output end of the rotary motor. The output end of the reduction gear set is connected to a lifting motor, and the output end of the lifting motor is connected to a lever. The lever's actuation provides continuous working assistance when material jams.

[0008] As a preferred embodiment of the present invention: a hopper is installed below the discharge port of the double-clamp conveyor on the rear side of the platform, a second robotic arm is provided at the discharge port of the hopper, and an outer packaging bag is provided at the execution end of the second robotic arm.

[0009] As a preferred embodiment of the present invention: a double-clamp conveyor is also provided on the left side of the second robotic arm, and a high-temperature heat sealing machine for heat sealing the outer packaging bag is provided on the front side of the double-clamp conveyor.

[0010] As a preferred embodiment of the present invention, a material collection hopper is placed at the discharge port of the double-clamp conveyor on the rear side of the high-temperature heat sealing machine.

[0011] As a preferred embodiment of the present invention: the feeding structure located on the right side of the guillotine system is used for feeding granular or powdered medicinal materials, and the feeding structure located below the guillotine system is used for feeding large pieces of medicinal materials that have been guillotined.

[0012] The technical effects and advantages provided by the present invention in the above technical solution are as follows: This automated weighing and packaging device for Chinese herbal tea bags achieves full automation of the production process by integrating a control system, weighing system, guillotine system, feeding system, belt system, and bagging system. The control system can scan medical records to obtain herbal information or manually set parameters, precisely controlling the coordinated operation of each system. The weighing system is divided into two types: the first type combines a screening function to blow materials of different weights to corresponding hoppers, and the second type performs the final weighing to ensure accuracy. The guillotine system uses an adjustable gear ratio screw to proportionally cut large pieces of herbs to accommodate different weight requirements. The feeding system has a dual structure, handling granules, powders, and large pieces of herbs separately, with a flow guide bulge and feeding gears optimizing the smoothness of material feeding. The bagging system uses negative pressure suction and a bag opener for automatic filling, and the belt system uses a sewing machine to seal the bags. After heat sealing, the outer packaging bags are collected in a hopper. The overall process is highly efficient and precise, improving production efficiency and product quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the main structure of the automatic weighing and packaging device; Figure 2 This is a schematic diagram of the weighing system; Figure 3 This is a schematic diagram of the feeding system; Figure 4 This is a schematic diagram of a lever device; Figure 5 This is a schematic diagram of the guillotine system; Figure 6 This is a schematic diagram of a bagging system.

[0015] Appendix Figure 1 -Appendix Figure 6 Explanation of the markings on each component: 1. Controller; 2. CNC display screen; 3. Control buttons; 4. External port; 5. QR code scanning terminal; 6. Connecting cable; 7. Guillotine; 8. Guillotine system; 9. Air valve bracket; 10. Air valve; 11. First-class weighing system; 12. Air compressor; 13. Lever; 14. Lever device; 15. Feeding structure; 16. Housing; 17. Motor; 18. Double-clamp conveyor; 19. Central processing unit; 20. Data cable; 21. Data interface; 22. Feed trough; 23. Second-class weighing system; 24. Pipeline; 25. Negative pressure exhaust fan; 26. First robotic arm; 27. Bag opener; 28. High-temperature heat sealing machine; 29. ​​Platform; 30. Sewing machine; 31. Feed hopper; 3 2. Outer packaging bag; 33. Second robotic arm; 34. Collection hopper; 35. Protective cover; 36. First photoelectric sensor; 37. Weight sensor; 38. Funnel; 39. Hopper bin; 40. Hopper bin electronic valve; 41. Hopper bin valve; 42. Guide drum; 43. Feeding gear; 44. Second photoelectric sensor; 45. Motor control box; 46. Rotary motor; 47. Reduction gear set; 48. Lifting rod motor; 49. Screws with different gear ratios; 50. Screws with equal gear ratios; 51. Guillotine support frame; 52. Third photoelectric sensor; 53. Negative pressure pipeline; 54. Filter screen; 55. Control valve; 56. Negative pressure fan; 57. Servo motor; 58. Angle conveyor belt; 59. Adhesive material. Detailed Implementation

[0016] To provide a clearer explanation and illustration of the technical solutions and implementation methods of the present invention, several preferred specific embodiments for implementing the technical solutions of the present invention are described below. The following description is merely exemplary and not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically illustrate the concept and principle of the embodiments of the present disclosure and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention.

[0017] Example 1: An automatic weighing and packaging device for Chinese herbal tea bags. Its control system includes a controller 1 and a central processing unit 19. The controller 1 has a digital display screen 2 and control buttons 3 on its operating surface. An information receiving end is connected to a QR code scanning terminal 5 that can scan medical documents to obtain information on the type and weight of Chinese herbal medicines. Both the controller 1 and the central processing unit 19 are equipped with external ports 4 for receiving and transmitting control signals and a data interface 21, connected to various systems via connecting lines 6 and data lines 20. There are two types of weighing systems. The first type, weighing system 11, is linked to the control system and the conveying system, and is combined with the sieving system. It consists of a multi-section double-clamp conveyor 18 with connected ends, a protective cover 35 covering the middle section, and a funnel 38 fixed to the bottom port of the protective cover 35. A first photoelectric sensor 36 and an air valve 10 are fixed inside the protective cover 35. A weight sensor 37 is installed on the inner side of the conveyor belt of the middle section double-clamp conveyor 18. The second type, weighing system 23, is used for the final weighing of various medicinal materials. Its structure is similar to the first type, assisting in the weighing of granular or powdered medicinal materials. When handling large pieces of Chinese medicinal herbs, the guillotine system works in conjunction with a first-class weighing system based on a pre-set intended loading weight. It comprises multiple guillotine support frames 51, a hydraulic cylinder fixed at the top, and horizontally extending screws 49 with varying gear ratios. The drive ends of the screws 49 with varying gear ratios are connected to an electric motor, and the output ends of the hydraulic cylinders are connected to screws 50 with equal gear ratios. The bottom ends of the screws 50 are connected to guillotines 7 that move up and down inside the guillotine support frames 51. A third photoelectric sensor 52 for sensing the entry and exit of materials is installed inside the guillotine support frames 51.

[0018] The feeding system has two sets of feeding structures 15, one below the guillotine system and the other on the right. Both sets of feeding structures 15 have housings 16, with hoppers 39 fixed in a circular array inside the housings 16. A hopper switch electronic valve 40 is installed at the bottom of the hoppers 39. A ring of guide drums 42 is fixed at the bottom of the inner cavity of the housing 16, and two sets of feeding gears 43 are rotatably arranged between the guide drums 42. A second photoelectric sensor 44 and a motor 17 are installed at the discharge port, which is connected to a conveyor trough 22 located above the second type of weighing system 23. The feeding structure 15 on the right side of the guillotine system is used for feeding granular or powdered medicinal materials, while the one below is used for feeding large pieces of medicinal materials that have been guillotined. The belt system is located on the right side of the second type of weighing system 23, including a platform 29 in front of the intermediate double-plate conveyor 18, and a sewing machine 30 mounted above the platform 29 for tying the material packaging bags. The bagging system includes a negative pressure pipe 53 fixed to the upper right of the second type of weighing system 23, and a first robotic arm 26 installed to the lower right of the negative pressure pipe 53. A bag opener 27 is installed on the execution arm of the first robotic arm 26. A negative pressure fan 56 for suction and material transfer is installed inside the negative pressure pipe 53. A filter screen 54 and a control valve 55 for controlling the opening and closing of the filter screen 54 are installed in the inner cavity. An angled conveyor belt 58 is set below the bag opener 27. Adhesive material 59 is attached to the surface of the angled conveyor belt 58.

[0019] During operation, the system obtains the category and weight of each Chinese medicinal herb by manually setting or scanning medical orders through the control system. Large pieces of herbs are fed into an independent hopper and conveyed to the first weighing system 11 via a belt chain and lever. After weighing, they are conveyed to the guillotine device according to the set weight. The guillotine system cuts the large pieces of herbs into equal portions based on their overall weight. Each portion is weighed again via a belt chain and lever, and then conveyed to the screening system. The screening system uses an air gun to blow the herbs into the screening hopper for storage. After the batching begins, various herbs are poured from the hopper into the second weighing system. Large pieces of herbs are added from the storage hopper, while granular and powdered herbs are poured in from the independent feeding system. After weighing, the lever guides the belt chain to load the herbs into non-woven tea bags. The chain conveyor belt then conveys the sealed non-woven tea bags to the robotic arm for sealing, leaving a long thread exposed. After the non-woven fabric is sealed, it is transferred to the kraft paper outer packaging bag. The kraft paper packaging bag is heated by a high-temperature heat sealing machine, and the outer packaging of the Chinese herbal tea bag is sealed by pressing. The control system repeats the process of issuing instructions.

[0020] Example 2: An automatic weighing and packaging device for Chinese herbal tea bags. The control system also consists of a controller 1, a central processing unit 19, a digital control display screen 2, control buttons 3, a QR code scanning terminal 5, an external port 4, a data interface 21, a connecting cable 6, and a data cable 20. It realizes the functions of selecting, weighing, conveying, bagging, and sealing various types of Chinese herbal materials. In the weighing system, a lever system is installed above the first type of weighing system 11. Above the lever system are an air valve bracket 9, an air valve 10, and an air compressor 12 connected to a compressed air tank. This is used to blow materials of different weights from the first type of weighing system 11 into different hoppers 39 for screening. The lever system includes a lever device 14, which has a rotary motor 46, a motor control box 45 connected to the control end of the rotary motor 46, and a reduction gear set 47 connected to the output end of the rotary motor 46. The output end of the reduction gear set 47 is connected to a lifting motor 48, and the output end of the lifting motor 48 is connected to a lever 13, providing continuous working assistance when materials are stuck. The first type of weighing system 11 and the second type of weighing system 23 have similar structures to those in Embodiment 1, and complete weighing work at different stages.

[0021] The guillotine system has the same structure as in Embodiment 1. Based on the overall weight of the large pieces of medicine, it guillotines are chopped into equal portions. Different gear ratio threaded rods are used to move the guillotine proportionally. After equal division, a conveyor belt transports each medicine block to the weighing system. The two sets of feeding structures 15 in the feeding system have the same positions and functions as in Embodiment 1. Feeding and sieving functions are achieved through components such as the housing 16, hopper 39, hopper electronic valve 40, guide drum 42, feeding gear 43, second photoelectric sensor 44, and motor 17. A feeding hopper 31 is installed below the discharge port of the double-clamp conveyor 18 on the rear side of the platform 29. A second robotic arm 33 is installed at the discharge port of the feeding hopper 31. An outer packaging bag 32 is installed at the execution end of the second robotic arm 33. The double-clamp conveyor 18 is also installed on the left side of the second robotic arm 33. A high-temperature heat sealing machine 28 is installed in front of the double-clamp conveyor 18. A collection hopper 34 is placed at the discharge port of the double-clamp conveyor 18 behind the high-temperature heat sealing machine 28 to complete the bagging and collection of the outer packaging. The bagging system is similar to that in Embodiment 1, using a negative pressure pipe 53, a first robotic arm 26, a bag opener 27, a negative pressure fan 56, a filter screen 54, a control valve 55, an angled conveyor belt 58, and adhesive material 59 to complete the filling and opening of the bags.

[0022] During operation, the control system, based on manually set or scanned information, controls the size of the feed inlet opening of the feeding system motor and controls the motor switch according to feedback from the weighing system. The synchronous motor adjusts the position of the guillotine cutter, while the asynchronous motor controls the guillotine to cut the herbs into pieces. After the guillotine cutter command is output, the conveyor belt motor is started to transport equal portions of the herbs to the weighing system. When the herbs reach the designated position, the lever motor is controlled to move the herbs to the weighing system. After weighing information feedback, the air valve is controlled to blow herbs of different weights into different storage bins. After weighing, the negative pressure exhaust motor is controlled to suck the herbs into the non-woven fabric bag opened by the bag opener. After filling, the small robotic arm rotates, flattens the bag so that the double-clamp conveyor belt clamps the bag opening, and the tying system completes the tying and sealing. The synchronous motor then transports the tied non-woven bag to the outer packaging bag for filling and heat sealing. Finally, the double clamps open to complete the weighing and packaging of the herbal tea bags, and the commands are repeated.

[0023] Based on the above description, the workflow of this technical solution is explained as follows: The control system includes a controller 1, a central processing unit 19, a connecting cable 6, and a data cable 20. The controller 1 has a digital control display screen 2 and control buttons 3 on its operating surface. The information receiving end is connected to a QR code scanning terminal 5, which can scan medical slips to obtain information on the type and weight of Chinese medicinal materials. The external port 4 and data interface 21 are connected to the weighing system, the guillotine system, the feeding system, the conveying system, the belt system, and the bagging system. Based on the type and weight information of Chinese medicinal materials obtained by manual setting or scanning, the feeding system motor is controlled to adjust the size of the feeding port. Combined with the feedback control of the weighing system, the motor switch is controlled to adjust the position of the guillotine by the synchronous motor. The asynchronous motor controls the guillotine to cut large pieces of Chinese medicinal materials into equal portions to the required weight. The guillotine command is executed. The conveyor belt motor is then started to transport equal portions of medicinal materials to the weighing system. When the materials reach the designated position, the control lever motor drives lever 13 to move the materials to the weighing system. After the weighing information is fed back, the control air valve bracket 9, air valve 10 and air compressor 12 blow the medicinal materials of different weights into different hoppers 39 for storage. Overweight medicinal materials enter the guillotine system for secondary processing. The guillotine system drives screws 49 with different gear ratios and screws 50 with equal gear ratios through the motor. The output end of the hydraulic cylinder is connected to the screws 50 with equal gear ratios to drive the guillotine 7 to move within the guillotine support frame 51. The third photoelectric sensor 52 senses the material entering and exiting. The threads of the screws 49 with different gear ratios are reversed in the middle, so that the middle guillotine and the two side guillotines can move in both directions with a gear ratio of 2:1. The motor rotation speed is automatically adjusted according to the length data of the medicinal materials to achieve equal-distance guillotine cutting.

[0024] The feeding system includes two sets of feeding structures 15. One set is located below the guillotine system to receive large pieces of guillotine-cut medicinal materials, and the other set is located to the right of the guillotine system for feeding granular or powdered medicinal materials. Each set of feeding structures 15 has a ring-shaped array of hopper bins 39 inside its shell 16, and is equipped with a hopper bin switch electronic valve 40. A guide bulge 42 and two sets of feeding gears 43 are fixed at the bottom of the inner cavity. A second photoelectric sensor 44 and a motor 17 are installed at the discharge port. The discharge port is connected to the conveying trough 22 above the second type of weighing system 23. The weighing system includes a first type of weighing system 11 and a second type of weighing system 23, both of which are connected by multiple sections of double-clamp conveyors. 18. The system comprises a protective cover 35 covering the middle section, a funnel 38 fixed at the bottom of the protective cover 35, a first photoelectric sensor 36 and an air valve 10 inside the protective cover 35, and a weight sensor 37 on the inner side of the conveyor belt of the middle section double-clamp conveyor 18. A lever system is provided above the first type of weighing system 11. The lever system includes a lever device 14 with a rotary motor 46, a motor control box 45, a reduction gear set 47, and a lifting lever motor 48. The problem of material jamming is solved by lever 13. The first type of weighing system 11 is combined with the screening system and is equipped with an air valve bracket 9, an air valve 10, and an air compressor 12 connected by a compressed air tank. The system blows materials of different weights into different hoppers 39 for screening. The second type of weighing system 23 is used for final weighing. After weighing, the control system starts the negative pressure fan 56 in the negative pressure pipeline 53 to suck up the material. The negative pressure pipeline 53 is equipped with a filter screen 54 and a control valve 55. After the weight of the weighing system is lower than 0, the control valve 55 opens to allow the material to fall into the non-woven bag. The bagging system opens the non-woven bag through the bag opener 27 on the first robotic arm 26. When the non-woven bag is conveyed to the top by the adhesive material 59 on the surface of the angled conveyor belt 58, the adhesive material 59 makes it open automatically. The motor rotates the bag opener 27 to the negative pressure extraction port to complete the bagging. After filling, the horizontally placed non-woven bags are pushed to the conveyor belt. The tying system completes the tying and sealing through the sewing machine 30 above the platform 29. A feeding hopper 31 is installed below the discharge port of the double-clamp conveyor 18 behind the platform 29. The outer packaging bag 32 is set at the discharge port of the second robotic arm 33. The double-clamp conveyor 18 is set on the left side of the second robotic arm 33. A high-temperature heat sealing machine 28 is installed in front of it to heat seal the outer packaging bag 32. A collection hopper 34 is placed at the discharge port of the double-clamp conveyor 18 behind the high-temperature heat sealing machine 28. After the outer packaging is completed, the control system commands the double clamps to open. The Chinese herbal tea bag is weighed and packaged. The control system repeatedly executes the command.

[0025] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic weighing and packaging device for Chinese herbal tea bags, comprising a control system, a weighing system, a guillotine system, a feeding system equipped with a sieving function, a belt system, and a bagging system, characterized in that: The control system includes a controller (1) and a central processing unit (19), as well as connecting lines (6) and data lines (20) connecting the various systems. Both the controller (1) and the central processing unit (19) are provided with external ports (4) for receiving and transmitting control signals and data interfaces (21). The weighing system includes two types, namely, a first type of weighing system (11) and a second type of weighing system (23), both of which include a multi-section double-clamp conveyor (18) with multiple ends connected, a protective cover (35) covering the middle section of the double-clamp conveyor (18), and a funnel (38) fixed at the bottom port of the protective cover (35). A first photoelectric sensor (36) and an air valve (10) are fixed inside the protective cover (35). A weight sensor (37) is installed on the inner side of the conveyor belt of the middle section of the double-clamp conveyor (18). The guillotine system includes multiple guillotine support frames (51), a hydraulic cylinder fixed to the top of the guillotine support frame (51), and screws (49) with different gear ratios that run horizontally through the multiple guillotine support frames (51). The drive ends of the screws (49) with different gear ratios are connected to motors, and the output ends of the hydraulic cylinders are all connected to screws with equal gear ratios (50). The bottom ends of the screws with equal gear ratios (50) are connected to guillotine blades (7) that move up and down inside the guillotine support frames (51). The guillotine support frames (51) are all equipped with third photoelectric sensors (52) for sensing the entry and exit of materials. The feeding system includes two sets of feeding structures (15), one set located below the guillotine system and the other set located to the right of the guillotine system; each set of feeding structures (15) includes a housing (16), a hopper (39) fixed in a ring array inside the housing (16), and a hopper switch electronic valve (40) installed at the bottom of the hopper (39). A ring of flow guides (42) is fixed at the bottom of the inner cavity of the housing (16), and two sets of feeding gears (43) are rotatably arranged between the flow guides (42). A second photoelectric sensor (44) and a motor (17) are installed at the discharge port of the housing (16). The discharge port of the housing (16) is connected to a conveying trough (22) located above the second type of weighing system (23). The tying system is located on the right side of the second type of weighing system (23) and includes a platform (29) in front of the middle double-plate conveyor (18) and a sewing machine (30) installed above the platform (29) for tying the packaging bags containing the materials. The bagging system includes a negative pressure pipe (53) fixed to the upper right of the second type of weighing system (23), and a first robotic arm (26) installed to the lower right of the negative pressure pipe (53). A bag opener (27) is installed on the execution arm of the first robotic arm (26), and a negative pressure fan (56) for sucking and conveying materials is installed inside the negative pressure pipe (53). A filter screen (54) and a control valve (55) for controlling the opening and closing of the filter screen (54) are also installed in the inner cavity of the negative pressure pipe (53). An angled conveyor belt (58) is provided below the bag opener (27), and an adhesive material (59) is attached to the surface of the conveyor belt of the angled conveyor belt (58).

2. The automatic weighing and packaging device for traditional Chinese medicine tea bags according to claim 1, characterized in that: The controller (1) is equipped with a digital control display screen (2) and control buttons (3) on its operating surface. The controller (1) is connected to a QR code scanning terminal (5) that can scan medical slips to obtain information on the type and weight of Chinese medicinal materials.

3. The automatic weighing and packaging device for traditional Chinese medicine tea bags according to claim 1, characterized in that: A lever system is provided above the first type of weighing system (11). Above the lever system are an air valve bracket (9), an air valve (10), and an air compressor (12) connected to a compressed air tank, which are used to blow materials of different weights on the first type of weighing system (11) into different hoppers (39) for screening.

4. The automatic weighing and packaging device for traditional Chinese medicine tea bags according to claim 3, characterized in that: The lever system includes a lever device (14), which has a rotary motor (46), a motor control box (45) connected to the control end of the rotary motor (46), and a reduction gear set (47) connected to the output end of the rotary motor (46). The output end of the reduction gear set (47) is connected to a lifting motor (48), and the output end of the lifting motor (48) is connected to a lever (13). The lever (13) provides continuous working assistance when the material is stuck.

5. The automatic weighing and packaging device for traditional Chinese medicine tea bags according to claim 1, characterized in that: A hopper (31) is installed below the discharge port of the double-clamp conveyor (18) on the rear side of the platform (29). A second robotic arm (33) is provided at the discharge port of the hopper (31), and an outer packaging bag (32) is provided at the execution end of the second robotic arm (33).

6. The automatic weighing and packaging device for traditional Chinese medicine tea bags according to claim 5, characterized in that: The second robotic arm (33) is also provided with a double-clamp conveyor (18) on its left side, and a high-temperature heat sealing machine (28) for heat sealing the outer packaging bag (32) is provided on the front side of the double-clamp conveyor (18).

7. The automatic weighing and packaging device for traditional Chinese medicine tea bags according to claim 6, characterized in that: A material collection hopper (34) is placed at the discharge port of the double-clamp conveyor (18) on the rear side of the high-temperature heat sealing machine (28).

8. The automatic weighing and packaging device for traditional Chinese medicine tea bags according to claim 1, characterized in that: The feeding structure (15) located on the right side of the guillotine system is used for feeding granular or powdered medicinal materials, and the feeding structure (15) located below the guillotine system is used for feeding large pieces of medicinal materials that have been guillotined.

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