Weighting system and method for elongated rod

Abstract

This invention discloses a counterweight system and method for elongated drug strips. The system includes a counterweight drug strip pushing component, a drug strip dispersing and feeding component, a drug strip weighing and transferring component, a drug strip circulating conveying component, a counterweight drug strip position adjustment component, and a drug bag flipping component. The drug strip dispersing and feeding component conveys the drug strips to the drug strip weighing bin of the drug strip weighing and transferring component. The drug strip weighing and transferring component weighs the drug strips to determine if the weight meets the requirements. The drug strip clamping and transferring device conveys the drug strips from the weighing bin to the storage box of the drug strip circulating conveying component. The drug strip circulating conveying component provides a circulating flow channel for the drug strips between different functional stations. The counterweight drug strip position adjustment component provides the counterweight drug strips. The drug bag flipping component flips the drug bag. This invention can improve the overall quality and performance consistency of the drug strips, eliminate potential safety hazards, and protect the health of operators and the safety of the production environment.

Description

Technical Field

[0001] This invention belongs to the field of energetic drug column counterweight technology, specifically relating to a counterweight system and method for elongated drug strips. Background Technology

[0002] In the production of elongated drug strips, the stability of the strip's quality directly affects the performance and safety of the subsequent products. Currently, the balancing of elongated drug strips is mainly done manually. However, this manual balancing method has many serious problems:

[0003] High safety risks: Manual counterweighting requires operators to come into "face-to-face" contact with the drug strip. As the drug strip contains energetic materials, the slightest carelessness may cause a safety accident, posing a huge threat to the life safety of the operators.

[0004] Low efficiency: The speed of manual operation is limited. Under the demand of large-scale production, the efficiency of manual counterweighting is far from meeting the production rhythm, which seriously restricts the production progress.

[0005] Poor consistency in product weighting quality: Due to differences in the techniques and strength of different operators, even with rigorous training, the accuracy of manual weighing and weighting is still limited, making it difficult to ensure that the weighting of each strip is accurate. This results in poor consistency in product weighting quality, affecting the overall performance of the product.

[0006] Health risks: The surface of the slender drug strips often contains fine powder, which is easily stirred up and inhaled during manual handling. Long-term exposure to such a working environment can cause irreversible health damage to the operator's respiratory system and other systems. Summary of the Invention

[0007] To address the aforementioned problems, this invention proposes a counterweighting system and method for elongated drug strips, aiming to fundamentally solve the issues of high safety risks, low efficiency, poor quality consistency, and health hazards to operators associated with manual counterweighting. Through targeted system design and precise control methods, accurate weight counterweighting of elongated drug strips is achieved, improving the overall quality and performance consistency of the packaged drug strips, enhancing product market competitiveness, eliminating potential safety hazards, and ensuring the health of operators and the safety of the production environment.

[0008] The technical solution adopted in this invention is:

[0009] A counterweight system for elongated drug strips includes a counterweight drug strip pushing component, a drug strip dispersing and feeding component, a drug strip weighing and transferring component, a drug strip circulating conveying component, a counterweight drug strip position adjustment component, and a drug pack flipping component.

[0010] The pill dispersing and feeding assembly disperses and organizes stacked, elongated pills, and conveys them to the pill weighing bin of the pill weighing and transfer assembly. One end of the pill weighing and transfer assembly is aligned with the storage box of the pill circulation conveying assembly, and the other end is connected to the discharge port of the pill dispersing and feeding assembly. The pill weighing and transfer assembly includes a height adjustment device and a pill clamping and transfer device. The height adjustment device weighs the pills using the pill weighing bin and a weighing sensor to determine if the weight of the pills in the weighing bin meets the requirements. The pill clamping and transfer device conveys the weighed pills from the weighing bin to the storage box of the pill circulation conveying assembly. The system integrates weighing and transfer operations; the pill circulation conveying assembly provides a circulation channel for pills between different functional stations; the counterweight pill position adjustment assembly provides counterweight pills; when a pill storage box containing pills whose weight does not meet the requirement reaches the counterweight pill position adjustment assembly, the counterweight pill pushing assembly pushes the counterweight pills from the counterweight pill position adjustment assembly into the pill storage box containing the pills whose weight does not meet the requirement, so that the weight of the pills in the storage box reaches the required level; the pill pack flipping assembly is located at the end of the pill circulation conveying assembly, and the pill pack flipping assembly includes a pill chamber, which receives the pills in the storage box to form pill packs, and the pill pack flipping assembly flips the pill packs.

[0011] Furthermore, the drug strip dispersing and feeding assembly includes an anti-static conveyor line, drug strip dispersing rollers, a drive shaft, a turbine vibrator, a drug strip storage bin, and a first servo motor;

[0012] The antistatic conveyor line is installed on the support frame. The drug strip storage bin is used to store stacked slender drug strips. The turbine vibrator is installed on the outside of the drug strip storage bin. The output shaft of the first servo motor can drive the transmission shaft to rotate. The drug strip dispersing roller is mounted on the transmission shaft. The toothed structure of the drug strip dispersing roller can sort and disperse the drug strips that slide down in the drug strip storage bin, so that the drug strips enter the antistatic conveyor line in a single orderly row.

[0013] Furthermore, the height adjustment device of the weighing and transfer assembly of the medicine strips also includes a fixed base, a vertical fixed frame, a linear guide rail, a movable fixed plate, a weighing base, a weighing support plate, a screw assembly, a screw upper fixed seat, an adjusting wheel, and a screw assembly fixing plate;

[0014] The vertical fixing frame is fixed to the upper surface of the fixed base. The linear guide rail is vertically installed on the side of the vertical fixing frame. The movable fixing plate is fixedly installed on the slider of the linear guide rail and can reciprocate vertically along the linear guide rail. The screw assembly fixing plate is fixed to the top of the vertical fixing frame. The lower end of the screw assembly is fixedly installed on the back of the movable fixing plate, and the upper end is connected to the screw assembly fixing plate through the upper fixing seat of the screw. The adjusting wheel is connected to the top of the screw assembly through a transmission connection.

[0015] The weighing base is installed on the front side of the movable fixed plate, and the weighing sensor is installed on its upper surface. The weighing support plate is fixed to the upper end of the weighing sensor, and the pill weighing chamber is fixedly installed on the upper surface of the weighing support plate. By rotating the adjusting wheel, the screw assembly can be driven to rotate, thereby driving the movable fixed plate to rise and fall along the linear guide rail, so as to realize the height adjustment of the pill weighing chamber.

[0016] Furthermore, the drug strip clamping and transferring device of the drug strip weighing and transferring assembly includes a lifting cylinder, an upper fixed plate, a translation cylinder fixed plate, a horizontal cylinder, a fixed column, a clamping cylinder fixed plate, a finger clamping cylinder, and a gripper.

[0017] The upper fixed plate is the mounting base of the pill clamping and transfer device. The translation cylinder fixed plate is connected to the piston rod end of the lifting cylinder, and the vertical movement and positioning of the translation cylinder fixed plate is achieved by the linear guide rail installed between the translation cylinder fixed plate and the upper fixed plate. The horizontal cylinder is installed on the side of the translation cylinder fixed plate, and the moving part of the horizontal cylinder is fixedly connected to the upper fixed plate. The fixed column is fixedly connected to the upper fixed plate. The horizontal cylinder can drive the upper fixed plate to drive the fixed column to perform horizontal reciprocating motion.

[0018] The clamping cylinder fixing plate is fixed to the lower end of the fixed column, the finger clamping cylinder is installed on the lower part of the clamping cylinder fixing plate, the gripper is connected to the lower output end of the finger clamping cylinder, and the gripper can be opened and closed by the drive of the finger clamping cylinder, thereby completing the gripping of the medicine strip in the medicine strip weighing chamber. The lifting cylinder is vertically installed on the vertical part of the fixed base.

[0019] Furthermore, the pill-carrying circulation assembly also includes a drive mechanism, a pallet, a transmission mechanism, an indexing moving block assembly, and an indexing positioning assembly. Multiple pallets and storage boxes are included, with multiple pallets mounted on the upper part of the indexing moving block assembly. Each storage box is fixed to a corresponding pallet. The indexing moving block assembly can circulate with the transmission mechanism. The drive mechanism drives the transmission mechanism. When the storage box needs to pause at the pill-carrying weighing and transfer assembly, the counterweight pill-carrying position adjustment assembly, or the pill-packing flipping assembly, the indexing positioning assembly can work with the indexing moving block assembly to stop the storage box and achieve high-precision positioning.

[0020] Furthermore, the indexing moving block assembly includes multiple positioning holes, and the indexing positioning assembly includes positioning pins. When the storage box needs to pause its movement, the indexing positioning assembly inserts the positioning pins into the corresponding positioning holes.

[0021] The transmission mechanism includes a driven sprocket, a chain, a driving sprocket, and an annular guide rail; the drive mechanism includes a second servo motor, a planetary reducer, a reducer bracket, and a coupling.

[0022] The second servo motor serves as a power source and is mounted on the side of the reducer bracket. The output shaft of the second servo motor is connected to the input end of the planetary reducer. The output shaft of the planetary reducer is connected to the drive sprocket via a coupling. The drive sprocket forms a closed transmission pair with the driven sprocket via a chain, transmitting power to the indexing moving block assembly, which drives the storage box to circulate along the annular guide rail.

[0023] Furthermore, the counterweight pill position adjustment assembly includes an electric roller conveyor line, multiple counterweight pill buffer bins, and a position adjustment mechanism. The multiple counterweight pill buffer bins are located on the electric roller conveyor line. The horizontal forward and backward conveying of the multiple counterweight pill buffer bins can be achieved by rotating the rollers on the electric roller conveyor line. The position adjustment mechanism can achieve adjustment of the electric roller conveyor line in the left-right and height directions. The multiple counterweight pill buffer bins respectively store counterweight pills of different weights.

[0024] Furthermore, the counterweight pill pusher assembly includes a support column, a pill pusher, and a sliding mechanism. The sliding mechanism is mounted on the support column and can drive the pill pusher to move back and forth to push the counterweight pills in the corresponding counterweight pill buffer compartment into the storage box of pills whose weight does not meet the requirements.

[0025] Furthermore, the medicine pack flipping assembly also includes a medicine pack clamp, a flipping plate, a flipping power mechanism, and a horizontal movement mechanism. The medicine compartment is held by the medicine pack clamp, the medicine pack clamp is mounted on the flipping plate, the flipping power mechanism is mounted on the horizontal movement mechanism, the horizontal movement mechanism can drive the flipping power mechanism to move horizontally, and the flipping power mechanism can drive the flipping plate to flip the medicine pack clamp.

[0026] A method for weighting elongated drug strips in a weighting system includes the following steps:

[0027] Material preparation: Load the long and thin drug strips into the drug strip storage bin of the drug strip dispersing and feeding component, start the turbine vibrator and the servo motor that drives the drug strip dispersing rollers to prepare for feeding;

[0028] Drug strip dispersion feeding: The turbine vibrator generates high-frequency vibration, which causes the drug strips in the drug strip storage bin to slide down in an orderly manner. The synchronously rotating drug strip dispersion rollers, through their toothed structure, comb and disperse the falling drug strips, so that the drug strips form a single row sequence and are introduced into the anti-static conveyor line, realizing automated single-row feeding of drug strips.

[0029] Weighing and Transfer: The single-row sequential drug strips are conveyed from the anti-static conveyor line to the drug strip weighing bin. The weighing sensor collects the weight data of the drug strips in the weighing bin in real time. After the weight data collection is completed, the finger cylinder of the drug strip clamping and transfer device is activated, driving the gripper to pick up the drug strips in the weighing bin and transfer them to the storage box.

[0030] Circular conveying and positioning: The second servo motor drives the transmission mechanism, which drives the indexing moving block assembly with the storage box to move circularly along the ring guide rail. When the storage box of the medicine strips whose weight does not meet the requirements arrives at the position of the counterweight medicine strip position adjustment component, the pneumatic cylinder of the indexing and positioning component drives the positioning pin to extend and insert into the indexing moving block assembly to lock the position of the storage box.

[0031] Counterweight adjustment: The sliding mechanism of the counterweight pill pusher component drives the pill pusher forward, pushing the counterweight pill in the corresponding counterweight pill buffer bin into the storage box of the pill that does not meet the weight requirement;

[0032] Drug Packet Flipping: When the storage boxes containing the required weight of the drug strips and the counterweighted storage boxes are conveyed to the drug pack flipping component station, the pneumatic cylinder of the indexing and positioning component drives the positioning pin to extend and insert into the indexing moving block component, thereby locking the position of the storage box. The drug strips in the storage box are pushed into the drug chamber to form a drug pack. The drug pack flipping component can flip the drug pack to adjust the posture of the drug pack to meet the interface requirements of subsequent processes.

[0033] Compared with existing technologies, this invention achieves significant improvements in safety, production efficiency, and consistency of counterweight quality through multi-component collaborative operation. Specific technical effects include:

[0034] (1) Eliminate safety risks: The system realizes full-process automated operation, minimizes direct contact between personnel and energy-containing drug strips, and reduces the risk of safety accidents from the source; the counterweight drug strip pushing component has a built-in force sensor with real-time monitoring and over-limit alarm functions, which can effectively prevent equipment damage and safety hazards caused by drug strip jamming; the closed conveying and buffering design significantly reduces drug strip powder flying, reduces the risk of personnel inhalation, and effectively protects occupational health.

[0035] (2) Significantly improved production efficiency: Based on modular parallel operation and cyclic conveying design, the system realizes continuous flow of medicine strips and synchronous processing of multiple workstations. The operation efficiency is much higher than that of traditional manual operation and can adapt to the pace of large-scale production. Through the coordinated control of automated feeding, weighing and transfer, the speed bottleneck of manual operation is eliminated and the processing time of a single batch is greatly shortened.

[0036] (3) Significantly improved consistency of counterweight quality: Real-time data acquisition by weighing sensors and closed-loop feeding mechanism ensure the accuracy of counterweight for each strip and eliminate manual operation errors; High-precision constraints of indexing positioning and position adjustment components ensure the stability of the strip's posture in each process, significantly improving the consistency and reliability of the counterweight process; The use of time-series interlocking and state linkage design (such as vibration and weighing interlocking, push and positioning coordination) avoids mutual interference between multiple process links and ensures accurate and reliable counterweight data.

[0037] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0038] Figure 1 This is a system composition diagram of the counterweight system for elongated drug strips according to the present invention.

[0039] Figure 2 This is a schematic diagram of the weighted medicine strip pushing component.

[0040] Figure 3 This is a schematic diagram of the overall structure of the drug strip dispersing and feeding assembly.

[0041] Figure 4 This is a schematic diagram of the internal structure of the drug strip dispersing and feeding assembly.

[0042] Figure 5 This is a schematic diagram of the drug strip weighing and transfer assembly.

[0043] Figure 6 This is a schematic diagram of the medicine strip circulation conveying assembly.

[0044] Figure 7 This is a schematic diagram of the counterweight strip position adjustment component.

[0045] Figure 8 This is a schematic diagram of the medicine pack flipping component. Detailed Implementation

[0046] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments of the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or other combinations.

[0048] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0049] This invention provides a counterweight system for elongated drug strips, the layout of which is shown in the schematic diagram below. Figure 1 As shown, the system integrates automatic feeding, precise weighing, cyclic conveying and attitude adjustment functions, realizing the full automation of the weighting process for slender drug strips.

[0050] The system uses the equipment base 1 as its core support frame, which is fixed to the ground with expansion bolts. Its horizontal platform provides an installation reference for all functional components, supports the spatial layout of each component, and ensures the overall structural stability.

[0051] The counterweight pill pusher 2 is mounted on one side of the platform of the equipment base 1. The counterweight pill pusher 2 can push the counterweight pill in the counterweight pill position adjustment component 6 into the storage box 5-6 where the weight of the pill does not meet the requirement, so that the weight of the pill in the storage box 5-6 meets the requirement, thereby realizing the directional pushing and station flow of the counterweight pill.

[0052] The strip dispersing and feeding component 3 is installed above the end of the table of the equipment base 1. It disperses and organizes the stacked slender strips through a mechanical structure and accurately conveys them to the picking station of the strip weighing and transfer component 4, effectively avoiding the stacking and jamming of strips and ensuring the continuity and orderliness of feeding.

[0053] One end of the pill weighing and transfer component 4 is aligned with the storage box of the pill circulation conveying component 5, and the other end is connected to the discharge port of the pill dispersion feeding component 3. It integrates weight detection and mechanical transfer functions: on the one hand, it performs high-precision weight weighing of single slender pills to provide data for counterweighting; on the other hand, it transports the pills to the target workstation through the transfer mechanism to realize the integrated operation of weighing and transfer, thereby improving counterweighting efficiency.

[0054] The medicine strip circulation conveying assembly 5 is laid on the platform of the equipment base 1. It consists of multiple conveying units connected in series, providing a circulation channel for the slender medicine strips between different functional stations, supporting the continuous operation of subsequent position adjustment, flipping and other processes.

[0055] The counterweight strip position adjustment component 6 is installed on one side of the strip circulation conveying component 5. The positioning mechanism corrects the posture and fine-tunes the position of the counterweight strips that are conveyed to the position, ensuring the accurate positioning of the counterweight strips and the storage box 5-6, and improving the consistency of the counterweight process.

[0056] The medicine bag flipping component 7 is located at the end of the platform of the equipment base 1. The flipping mechanism adjusts the angle and changes the posture of the medicine bag after it has been weighed and loaded, so as to meet the posture requirements of subsequent processes and ensure the smoothness of medicine bag processing.

[0057] The counterweight medicine bar conveying assembly 8 is located in the lower frame area of ​​the equipment base 1. Through the conveying structure, the counterweight medicine bar is automatically conveyed and replenished, reducing the frequency of manual replenishment and ensuring the continuous operation capability of the equipment.

[0058] Further, see Figure 2 The figure shows the counterweight medicine strip delivery assembly 2 of the present invention, which includes:

[0059] The support column 2-1, providing overall support, is securely connected to the equipment base 1 at its bottom via anchor bolts, providing stable vertical support for the entire pushing assembly 2. The linear module mounting base 2-2 is fixed to the top of the support column 2-1 with screws, serving as the mounting base for the linear moving module 2-3 and ensuring the horizontal positioning accuracy of the linear moving module 2-3. The linear moving module 2-3 is bolted to the side of the linear module mounting base 2-2, providing linear drive power and guiding constraints for the pushing action. The movable slider 2-4 is fixedly mounted on the guide rail of the linear moving module 2-3, allowing it to reciprocate linearly along the length of the linear moving module 2-3. The lower end of the movable slider 2-4 is fixedly connected to the tail of the pill pusher 2-5, enabling power transmission. The pill pusher 2-5 serves as the pushing execution component. Its head is equipped with an anti-static rubber pad for direct contact with the counterweight pill, and its tail is embedded with a force sensor to detect the force on the pill pusher 2-5 during the pushing process in real time. Once the detected force exceeds the preset threshold, the equipment will immediately stop operating and trigger an alarm to avoid pill jamming or equipment damage, which could lead to safety risks.

[0060] Further, see Figure 3-4 The figure shows the drug strip dispersing and feeding assembly 3 of the present invention, which includes:

[0061] The anti-static conveyor line 3-1, used to carry and transport the drug strips, is bolted to the support frame at the bottom of the drug strip dispersing and feeding assembly 3. The conveyor belt of the anti-static conveyor line 3-1 is made of anti-static material to prevent danger caused by electrostatic discharge during drug strip transport and ensure smooth feeding. The drug strip storage bin 3-5 is mounted on top of the drug strip dispersing and feeding assembly 3 and is used to store stacked slender drug strips. A turbine vibrator 3-4 is installed on the outer bottom of the drug strip storage bin 3-5. High-frequency vibration assists the drug strips in sliding downwards in the drug strip storage bin 3-5, preventing the drug strips from getting stuck in the drug strip storage bin 3-5.

[0062] The servo motor mounting base 3-13 is installed on the mounting plate at the bottom of the drug strip dispersing and feeding assembly 3, serving as the mounting base for the drug strip dispersing power source. The servo motor output shaft is fixed by the output shaft mounting base 3-6 and connected to the active synchronous pulley 3-12. Through the synchronous belt 3-10 and the driven synchronous pulley 3-11, a transmission pair is formed, transmitting power to the transmission shaft 3-3. The two ends of the transmission shaft 3-3 are positioned and supported by the driven shaft mounting base 3-9. The drug strip dispersing rollers 3-2 mounted on the transmission shaft 3-3 rotate synchronously with the transmission shaft 3-3. The toothed structure of the drug strip dispersing rollers 3-2 combs and disperses the slipping drug strips, so that the drug strips enter the anti-static conveyor line 3-1 in a single orderly row.

[0063] A spring buffer device 3-7 is installed between the support plate 3-8 and the fixed seat of the drug strip storage bin 3-5. It can buffer the vibration and impact during the operation of the turbine vibrator 3-4 and improve the stability of drug strip dispersion. The driven shaft fixed seat 3-9 provides positioning constraints for the driven end of the transmission shaft 3-3 to ensure transmission accuracy. The entire assembly, through the precise drive of the servo motor and the auxiliary feeding of the turbine vibrator 3-4, realizes the automated and orderly feeding of slender drug strips, effectively improving the continuous operation capability of the equipment.

[0064] Further reference Figure 5 The figure shows the pill weighing and transfer component 4 of the present invention. The pill weighing and transfer component 4 integrates height adjustment, precise weighing and clamping transfer functions, and can realize the weight detection and station transfer of slender pills.

[0065] This component mainly consists of two parts: a height adjustment device and a pill clamping and transfer device.

[0066] Height Adjustment Device: The fixed base 4-1 serves as the support base for the entire assembly. The vertical fixing frame 4-2 is bolted to the upper surface of the fixed base 4-1, providing an installation reference for the height adjustment device. The linear guide rail 4-3 is vertically mounted on the side of the vertical fixing frame 4-2. The movable fixing plate 4-4 is bolted to the slider of the linear guide rail 4-3, allowing for reciprocating motion along the guide rail in the vertical direction. The screw assembly fixing plate 4-20 is bolted to the top of the vertical fixing frame 4-2. The lower end of the screw assembly 4-9 is fixed to the back of the movable fixing plate 4-4 via a screw nut, and the upper end is connected to the screw assembly fixing plate 4-20 via a screw upper fixing seat 4-10. The adjusting wheel 4-11 is connected to the top of the screw assembly 4-9 via a transmission connection. Rotating the adjusting wheel 4-11 drives the screw assembly 4-9 to rotate, thereby causing the movable fixing plate 4-4 to rise and fall along the linear guide rail 4-3, achieving precise height adjustment.

[0067] The weighing base 4-5 is installed on the front side of the movable fixed plate 4-4, and a weighing sensor 4-6 is installed on its upper surface. The weighing support plate 4-7 is fixed to the upper end of the weighing sensor 4-6 by screws. The pill weighing bin 4-8 is fixedly installed on the upper surface of the weighing support plate 4-7 and is used to carry the slender pills to be weighed from the pill storage bin 3-5. The weight of the pills is detected in real time by the weighing sensor 4-6. The pill weighing bin 4-8 contains multiple pills.

[0068] Pill clip clamping and transfer device: The upper fixed plate 4-13 serves as the mounting base for the pill clip clamping and transfer device. The translation cylinder fixed plate 4-14 is connected to the piston rod end of the lifting cylinder 4-12, and the vertical precise movement and positioning of the translation cylinder fixed plate 4-14 is achieved through the linear guide rail installed between the translation cylinder fixed plate 4-14 and the upper fixed plate 4-13. The horizontal cylinder 4-15 is installed on the side of the translation cylinder fixed plate 4-14, and its moving part is locked to the upper fixed plate 4-13 with screws. It can be driven by air to make horizontal reciprocating motion of the fixed column 4-16, and the fixed column 4-16 is locked to the upper fixed plate 4-13 with screws.

[0069] The clamping cylinder fixing plate 4-17 is fixed to the lower end of the fixed column 4-16. The finger-grip cylinder 4-18 is installed on the lower part of the clamping cylinder fixing plate 4-17. The gripper 4-19 is connected to the output end of the finger-grip cylinder 4-18. The gripper 4-19 is opened and closed by driving the finger-grip cylinder 4-18, thereby completing the gripping and release of the medicine strip. The lifting cylinder 4-12 is vertically installed on the vertical part of the fixed base 4-1, providing vertical movement power for the translation cylinder fixing plate 4-14 and the entire clamping mechanism, and working with the horizontal cylinder 4-15 to achieve precise transfer of medicine strips between different workstations.

[0070] This component adapts to conveying stations of different heights through a height adjustment device, achieves accurate detection of the weight of the pills by combining with a weighing sensor, and completes the automated transfer of the pills through a clamping and transfer device, effectively improving the overall efficiency and reliability of the counterweight system.

[0071] Further reference Figure 6 The figure shows the pill strip circulation delivery assembly 5 of the present invention, which includes:

[0072] Multiple storage boxes 5-6 are used to carry and transport the pills. Each storage box 5-6 is fixed to a corresponding support plate 5-4 by screws. It circulates along the annular guide rail 5-13 with the indexing moving block assembly 5-10, stably carrying the slender pills and ensuring the stability of the pills' posture during transport. The annular guide rail 5-13 is laid along the transport path, providing guidance and constraint for the indexing moving block assembly 5-10 to prevent deviation during movement. The support plate 5-4 is installed on top of the indexing moving block assembly 5-10, providing support and positioning for the storage boxes 5-6.

[0073] Servo motor 5-1 serves as the power source and is bolted to the side of reducer bracket 5-3. The output shaft of servo motor 5-1 is connected to the input end of planetary reducer 5-2. The output shaft of planetary reducer 5-2 is connected to drive sprocket 5-12 via coupling 5-14, achieving speed reduction and amplification of power torque. Drive sprocket 5-12 forms a closed transmission pair with driven sprocket 5-8 at the end via chain 5-9, transmitting power to indexing moving block assembly 5-10, which drives storage box 5-6 to circulate along annular guide rail 5-13. Conveyor line fixing bracket 5-7 is installed in conjunction with circulating conveyor line fixing plate 5-5, providing support for the entire conveying structure and ensuring the stability of the transmission process.

[0074] The indexing and positioning assembly 5-11 is arranged beside each functional station (including the pill weighing and transfer assembly 4, the counterweight pill position adjustment assembly 6, and the pill pack flipping assembly 7). It uses a pneumatic cylinder to drive a linkage mechanism, which rotates the positioning pin and inserts it into the positioning hole of the indexing moving block assembly 5-10, achieving high-precision positioning of the storage box 5-6 at the station. After the station operation is completed, the positioning pin retracts, and the indexing moving block assembly 5-10 continues to move with the chain 5-9. Through the precise drive of the servo motor and the high-precision constraint of the indexing and positioning mechanism, the entire assembly achieves continuous cyclic conveying and precise positioning of slender pills at the station, effectively improving the automation level and operational reliability of the counterweight system.

[0075] Further reference Figure 7 The figure shows the counterweight strip position adjustment assembly 6 of the present invention, which includes:

[0076] The electric roller conveyor line 6-7, which carries and transports the counterweight pill buffer bins 6-8, is mounted on a vertical moving support 6-6. The horizontal transport of the counterweight pill buffer bins 6-8 is achieved through the rotation of the rollers, adapting to the docking requirements of the counterweighting process. The counterweight pill buffer bins 6-8 are installed above the electric roller conveyor line 6-7 to temporarily store counterweight pills to be used, ensuring a continuous supply of pills. There are multiple counterweight pill buffer bins 6-8, each containing counterweight pills of different weights. The required counterweight pills and quantities can be selected according to the weighing of the pills in the storage box 5-6, so that the pills in the storage box 5-6 reach the weight requirement after counterweighting.

[0077] The horizontal moving module 6-1 is bolted to the platform of the equipment base. The horizontal servo motor 6-2 serves as the horizontal power source, driving the slider of the horizontal moving module 6-1 to move the horizontal moving bracket 6-3 in a reciprocating linear motion along the horizontal moving module 6-1, thus adjusting the horizontal position of the overall structure. The vertical moving module 6-4 is vertically mounted on the side of the horizontal moving bracket 6-3. The vertical servo motor 6-5 drives the slider of the vertical moving module 6-4 to move the vertical moving bracket 6-6 in a reciprocating vertical motion along the module, thus adjusting the height of the electric roller conveyor line 6-7 and the counterweight medicine strip buffer bin 6-8.

[0078] The coordinated movement of the horizontal moving module 6-1 and the vertical moving module 6-4, in conjunction with the conveying action of the electric roller conveyor line 6-7, enables precise position adjustment of the counterweight strip buffer bin 6-8 in the horizontal and vertical directions, ensuring accurate docking with the workstation of the counterweight strip pushing component 2. This guarantees accurate pushing of the counterweight strips and effectively improves the workstation adaptability and pushing reliability of the counterweight system.

[0079] Further reference Figure 8 The figure shows the medicine pack flipping assembly 7 of the present invention, which includes:

[0080] The medicine bag clamp 7-14, used to clamp and fix the medicine compartment 7-16, is installed on the upper surface of the flipping plate 7-15. It achieves reliable fixation of the medicine bag through an adaptive clamping structure, ensuring that the medicine bag is stable in posture and has no risk of falling off during the flipping process. The flipping plate 7-15 is rigidly connected to the drive shaft 7-12 through a seated bearing 7-13. As the drive shaft rotates, it drives the medicine bag clamp 7-14 and the medicine bag to flip synchronously, completing the posture adjustment of the medicine bag.

[0081] The horizontal servo motor 7-1 serves as the power source for horizontal movement, driving the slider of the horizontal movement module 7-2 to move the horizontal movement plate 7-3 in a reciprocating linear motion along the module. The fixed bracket 7-4 and the servo motor bracket 7-5 are mounted on the horizontal movement plate 7-3 and move synchronously with it, realizing the horizontal position adjustment of the entire flipping mechanism to adapt to the docking requirements of different workstations. The flipping servo motor 7-7 is mounted on the servo motor bracket 7-5, and its output shaft is installed in the right-angle planetary reducer 7-6. After the output shaft is reduced in speed and increased in torque by the right-angle planetary reducer 7-6, it is connected to the active synchronous pulley 7-8. The active synchronous pulley 7-8 forms a transmission pair with the driven synchronous pulley 7-11 through the synchronous belt 7-9, transmitting power to the transmission shaft 7-12. The two ends of the transmission shaft 7-12 are positioned and supported by the fixed bearing 7-10 and the seated bearing 7-13, respectively, to ensure stability and accuracy during rotation.

[0082] The position adjustment of the horizontal moving module 7-2 and the coordinated action of the flipping transmission mechanism can realize the horizontal docking of the medicine package and the vertical attitude flipping, which meets the requirements of the subsequent counterweight process for the attitude of the medicine package and effectively improves the automation level and process adaptability of medicine package processing.

[0083] The present invention relates to a method for weighting elongated drug strips in a weighting system, comprising the following steps:

[0084] Material preparation: Load the slender drug strips into the drug strip storage bin 3-5 of the drug strip dispersing and feeding assembly 3, and start the turbine vibrator 3-4 and the servo motor that drives the drug strip dispersing roller 3-2 to prepare for feeding;

[0085] Drug strip dispersion feeding: The turbine vibrator 3-4 generates high-frequency vibration, which causes the drug strips in the drug strip storage bin 3-5 to slide down in an orderly manner. The synchronously rotating drug strip dispersion roller 3-2 combs and disperses the falling drug strips through its toothed structure, so that the drug strips form a single row sequence and are introduced into the anti-static conveyor line 3-1 to realize the automated single row feeding of drug strips.

[0086] Weighing and Transfer: The single-row sequential drug strips are conveyed from the anti-static conveyor line 3-1 to the drug strip weighing bin 4-8. The weighing sensor 4-6 collects the weight data of the drug strips in the weighing bin 4-8 in real time. After the weight data collection is completed, the finger cylinder 4-18 of the drug strip clamping and transfer device is activated, driving the gripper 4-19 to clamp the drug strips in the weighing bin 4-8 and transfer them to the storage box 5-6.

[0087] Circular conveying and positioning: The second servo motor 5-1 drives the transmission mechanism, which drives the indexing moving block assembly 5-10, which is equipped with the storage box 5-6, to perform circular movement along the annular guide rail 5-13. When the storage box 5-6 of the medicine strip whose weight does not meet the requirements arrives at the work position of the counterweight medicine strip position adjustment assembly 6, the pneumatic cylinder of the indexing positioning assembly 5-11 drives the positioning pin to extend and insert into the indexing moving block assembly 5-10, thereby locking the position of the storage box 5-6 and providing a stable reference for subsequent operations.

[0088] Counterweight adjustment: The sliding mechanism of the counterweight pill pusher 2 drives the pill pusher 2-5 forward, pushing the counterweight pills in the corresponding counterweight pill buffer 6-8 into the storage box 5-6 of the pills whose weight does not meet the requirements. During the pushing process, the force sensor integrated into the tail of the pill pusher 2-5 continuously monitors the pushing force. If the detected pushing force value exceeds the safety threshold, the system will stop immediately and trigger an alarm to prevent pill jamming from causing equipment damage.

[0089] Drug Packet Flipping: When the storage boxes 5-6 containing the required weight of the drug strips and the counterweighted storage boxes 5-6 are conveyed to the drug pack flipping assembly 7, the pneumatic cylinder of the indexing and positioning assembly 5-11 drives the positioning pin to extend and insert into the indexing moving block assembly 5-10, thereby locking the position of the storage box 5-6. The drug strips in the storage box 5-6 are pushed into the drug chamber 7-16 to form a drug pack. The drug pack flipping assembly 7 can flip the drug pack to adjust the posture of the drug pack to meet the interface requirements of subsequent processes.

[0090] Once the balancing process for a batch of drug strips is completed, all components are reset sequentially. The drug strip circulation conveying component continuously drives the storage box to circulate without load, preparing for the feeding and balancing of the next batch of drug strips.

[0091] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A counterweight system for elongated drug strips, characterized in that, It includes a counterweight pill pusher assembly (2), a pill dispersion feeding assembly (3), a pill weighing and transfer assembly (4), a pill circulation conveying assembly (5), a counterweight pill position adjustment assembly (6), and a pill pack flipping assembly (7). The pill dispersing and feeding component (3) can disperse and organize the stacked elongated pills and transport them to the pill weighing bin (4-8) of the pill weighing and transfer component (4). One end of the pill weighing and transfer component (4) is aligned with the storage box (5-6) of the pill circulation conveying component (5), and the other end is connected to the discharge port of the pill dispersing and feeding component (3). The pill weighing and transfer component (4) includes a height adjustment device and a pill clamping and transfer device. The height adjustment device can weigh the pills through the pill weighing bin (4-8) and the weighing sensor (4-6) to determine whether the weight of the pills in the pill weighing bin (4-8) meets the requirements. The pill clamping and transfer device can transport the weighed pills in the pill weighing bin (4-8) to the storage box (5-6) of the pill circulation conveying component (5) to realize weighing. Integrated operation with transfer; the pill circulation conveying component (5) can provide a circulation channel for pills between different functional component workstations; the counterweight pill position adjustment component (6) is used to provide counterweight pills; when the storage box (5-6) of the pills whose weight does not meet the requirements arrives at the counterweight pill position adjustment component (6), the counterweight pill pushing component (2) can push the counterweight pills in the counterweight pill position adjustment component (6) into the storage box (5-6) of the pills whose weight does not meet the requirements so that the weight of the pills in the storage box (5-6) meets the requirements; the pill pack flipping component (7) is located at the end of the pill circulation conveying component (5), the pill pack flipping component (7) includes a pill chamber (7-16), the pill chamber (7-16) is used to receive the pills in the storage box (5-6) to form a pill pack, and the pill pack flipping component (7) can realize the flipping of the pill pack.

2. The counterweight system for elongated drug strips according to claim 1, characterized in that, The drug strip dispersing and feeding assembly (3) includes an anti-static conveyor line (3-1), a drug strip dispersing roller (3-2), a drive shaft (3-3), a turbine vibrator (3-4), a drug strip storage bin (3-5), and a first servo motor; The antistatic conveyor line (3-1) is installed on the support frame. The drug strip storage bin (3-5) is used to store stacked slender drug strips. The turbine vibrator (3-4) is installed on the outside of the drug strip storage bin (3-5). The output shaft of the first servo motor can drive the transmission shaft (3-3) to rotate. The drug strip dispersing roller (3-2) is mounted on the transmission shaft (3-3). The toothed structure of the drug strip dispersing roller (3-2) can comb and disperse the drug strips that slide down in the drug strip storage bin (3-5), so that the drug strips enter the antistatic conveyor line (3-1) in a single row in an orderly manner.

3. The counterweight system for elongated drug strips according to claim 2, characterized in that, The height adjustment device of the weighing and transfer assembly (4) of the medicine strip also includes a fixed base (4-1), a vertical fixed frame (4-2), a linear guide rail (4-3), a movable fixed plate (4-4), a weighing base (4-5), a weighing support plate (4-7), a screw assembly (4-9), a screw upper fixed seat (4-10), an adjusting wheel (4-11), and a screw assembly fixing plate (4-20). The vertical fixing frame (4-2) is fixed to the upper surface of the fixed base (4-1). The linear guide rail (4-3) is vertically installed on the side of the vertical fixing frame (4-2). The movable fixing plate (4-4) is fixedly installed on the slider of the linear guide rail (4-3) and can reciprocate along the linear guide rail (4-3) in the vertical direction. The screw assembly fixing plate (4-20) is fixed to the top of the vertical fixing frame (4-2). The lower end of the screw assembly (4-9) is fixedly installed on the back of the movable fixing plate (4-4), and the upper end is connected to the screw assembly fixing plate (4-20) through the upper screw fixing seat (4-10). The adjusting wheel (4-11) is connected to the top of the screw assembly (4-9) through a transmission connection. The weighing base (4-5) is installed on the front side of the movable fixed plate (4-4), and the weighing sensor (4-6) is installed on its upper surface. The weighing support plate (4-7) is fixed to the upper end of the weighing sensor (4-6). The pill weighing chamber (4-8) is fixedly installed on the upper surface of the weighing support plate (4-7). By rotating the adjusting wheel (4-11), the screw assembly (4-9) can be driven to rotate, thereby driving the movable fixed plate (4-4) to rise and fall along the linear guide rail (4-3) to realize the height adjustment of the pill weighing chamber (4-8).

4. The counterweight system for elongated drug strips according to claim 3, characterized in that, The pill weighing and transfer assembly (4) includes a pill clamping and transfer device comprising a lifting cylinder (4-12), an upper fixing plate (4-13), a translation cylinder fixing plate (4-14), a horizontal cylinder (4-15), a fixed column (4-16), a clamping cylinder fixing plate (4-17), a finger clamping cylinder (4-18), and a gripper (4-19). The upper fixed plate (4-13) is the mounting base of the drug strip clamping and transfer device. The translation cylinder fixed plate (4-14) is connected to the piston rod end of the lifting cylinder (4-12), and the vertical movement and positioning of the translation cylinder fixed plate (4-14) is realized by the linear guide rail installed between the translation cylinder fixed plate (4-14) and the upper fixed plate (4-13). The horizontal cylinder (4-15) is installed on the side of the translation cylinder fixed plate (4-14). The moving part of the horizontal cylinder (4-15) is fixedly connected to the upper fixed plate (4-13). The fixed column (4-16) is fixedly connected to the upper fixed plate (4-13). The horizontal cylinder (4-15) can drive the upper fixed plate (4-13) to drive the fixed column (4-16) to perform horizontal reciprocating motion. The clamping cylinder fixing plate (4-17) is fixed to the lower end of the fixed column (4-16). The finger clamping cylinder (4-18) is installed on the lower part of the clamping cylinder fixing plate (4-17). The gripper (4-19) is connected to the lower output end of the finger clamping cylinder (4-18). The gripper (4-19) can be opened and closed by the drive of the finger clamping cylinder (4-18), thereby completing the gripping of the medicine strip in the medicine strip weighing bin (4-8). The lifting cylinder (4-12) is vertically installed on the vertical part of the fixed base (4-1).

5. The counterweight system for elongated drug strips according to claim 4, characterized in that, The pill-strip circulation conveying assembly (5) further includes a drive mechanism, a pallet (5-4), a transmission mechanism, an indexing moving block assembly (5-10), and an indexing positioning assembly (5-11). The pallet (5-4) and the storage box (5-6) each include multiple pallets (5-4) installed on the upper part of the indexing moving block assembly (5-10). Each storage box (5-6) is fixed on the corresponding pallet (5-4). The indexing moving block assembly (5-10) can perform cyclical movement with the transmission mechanism. The drive mechanism is used to drive the transmission mechanism to move. When the storage box (5-6) moves to the pill-strip weighing and transfer assembly (4), the counterweight pill-strip position adjustment assembly (6), or the pill-pack flipping assembly (7) and needs to be paused, the indexing positioning assembly (5-11) can work with the indexing moving block assembly (5-10) to make the storage box (5-6) pause its movement to achieve high-precision positioning.

6. The counterweight system for elongated drug strips according to claim 5, characterized in that, The indexing moving block assembly (5-10) includes multiple positioning holes, and the indexing positioning assembly (5-11) includes a positioning pin. When the storage box (5-6) needs to pause its movement, the indexing positioning assembly (5-11) inserts the positioning pin into the corresponding positioning hole of the indexing moving block assembly (5-10). The transmission mechanism includes a driven sprocket (5-8), a chain (5-9), a driving sprocket (5-12), and an annular guide rail (5-13). The drive mechanism includes a second servo motor (5-1), a planetary reducer (5-2), a reducer bracket (5-3), and a coupling (5-14). The second servo motor (5-1) serves as a power source and is installed on the side of the reducer bracket (5-3). The output shaft of the second servo motor (5-1) is connected to the input end of the planetary reducer (5-2). The output shaft of the planetary reducer (5-2) is connected to the drive sprocket (5-12) through a coupling (5-14). The drive sprocket (5-12) forms a closed transmission pair with the driven sprocket (5-8) through a chain (5-9), transmitting power to the indexing moving block assembly (5-10), which drives the storage box (5-6) to perform cyclic movement along the annular guide rail (5-13).

7. The counterweight system for elongated drug strips according to claim 6, characterized in that, The counterweight pill position adjustment assembly (6) includes an electric roller conveyor line (6-7), multiple counterweight pill buffer bins (6-8), and a position adjustment mechanism. The multiple counterweight pill buffer bins (6-8) are located on the electric roller conveyor line (6-7). The rotation of the rollers on the electric roller conveyor line (6-7) enables the horizontal forward and backward conveying of the multiple counterweight pill buffer bins (6-8). The position adjustment mechanism enables the electric roller conveyor line (6-7) to be adjusted in the left-right and height directions. The multiple counterweight pill buffer bins (6-8) contain counterweight pills of different weights.

8. The counterweight system for elongated drug strips according to claim 7, characterized in that, The counterweight pill pusher assembly (2) includes a support column (2-1), a pill pusher (2-5), and a sliding mechanism. The sliding mechanism is mounted on the support column (2-1) and can drive the pill pusher (2-5) to move back and forth to push the counterweight pills in the corresponding counterweight pill buffer (6-8) into the storage box (5-6) of the pills whose weight does not meet the requirements.

9. The counterweight system for elongated drug strips according to claim 8, characterized in that, The medicine pack flipping assembly (7) also includes a medicine pack clamp (7-14), a flipping plate (7-15), a flipping power mechanism, and a horizontal movement mechanism. The medicine compartment (7-16) is clamped by the medicine pack clamp (7-14). The medicine pack clamp (7-14) is mounted on the flipping plate (7-15). The flipping power mechanism is mounted on the horizontal movement mechanism. The horizontal movement mechanism can drive the flipping power mechanism to move horizontally. The flipping power mechanism can drive the flipping plate (7-15) to flip the medicine pack clamp (7-14).

10. A method for weighting a drug strip in a weighting system for an elongated drug strip according to claim 9, characterized in that, Includes the following steps: Material preparation: Load the long and thin drug strips into the drug strip storage bin (3-5) of the drug strip dispersing and feeding component (3), start the turbine vibrator (3-4) and the servo motor that drives the drug strip dispersing roller (3-2) to prepare for feeding; Drug strip dispersion feeding: The turbine vibrator (3-4) generates high-frequency vibration, which causes the drug strips in the drug strip storage bin (3-5) to slide down in an orderly manner. The synchronously rotating drug strip dispersion roller (3-2) combs and disperses the falling drug strips through its toothed structure, so that the drug strips form a single row sequence and are introduced into the anti-static conveyor line (3-1) to realize the automated single row feeding of drug strips; Weighing and Transfer: The single-row sequential drug strips are conveyed from the anti-static conveyor line (3-1) to the drug strip weighing bin (4-8). The weighing sensor (4-6) collects the weight data of the drug strips in the weighing bin (4-8) in real time. After the weight data is collected, the finger cylinder (4-18) of the drug strip clamping and transfer device is activated, driving the gripper (4-19) to clamp the drug strips in the weighing bin (4-8) and transfer them to the storage box (5-6). Circular conveying and positioning: The second servo motor (5-1) drives the transmission mechanism, which drives the indexing moving block assembly (5-10) with the storage box (5-6) installed to make a circular motion along the ring guide rail (5-13). When the storage box (5-6) with the weight of the medicine strip does not meet the requirements arrives at the station of the counterweight medicine strip position adjustment assembly (6), the pneumatic cylinder of the indexing positioning assembly (5-11) drives the positioning pin to extend and insert into the indexing moving block assembly (5-10) to lock the position of the storage box (5-6). Counterweight adjustment: The sliding mechanism of the counterweight pill pusher assembly (2) drives the pill pusher (2-5) forward, pushing the counterweight pill in the corresponding counterweight pill buffer (6-8) into the storage box (5-6) of the pill whose weight does not meet the requirements; Drug Packet Flipping: When the storage box (5-6) containing the drug strips that have reached the required weight and the storage box (5-6) that has completed the counterweight are transported to the station of the drug pack flipping assembly (7), the pneumatic cylinder of the indexing and positioning assembly (5-11) drives the positioning pin to extend and insert into the indexing moving block assembly (5-10) to lock the position of the storage box (5-6). The drug strips in the storage box (5-6) are pushed into the drug chamber (7-16) to form a drug pack. The drug pack flipping assembly (7) can flip the drug pack to adjust the posture of the drug pack in order to meet the interface requirements of the subsequent process.

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