A material equal division device

Abstract

The application discloses a material equal-division device and relates to the technical field of material division equipment. The device solves the consistency of different launching package drug amounts and the stability of the drug loading amount in the post-processing stage of the production and manufacturing of medicines. In the production process of the drug loading, the design of the trapezoidal funnel mechanism, the hanging and leveling mechanism and the opening and closing mechanism realizes the consistency and stability of the drug loading amount by relying on the one-way mechanism and the bucket division mechanism. The device can realize the stability control of the component in the medicine division process and ensure the structural applicability under the condition of different medicine sizes.

Description

Technical Field

[0001] This invention relates to the field of material distribution equipment technology, and in particular to a material distribution device that can achieve both stable control of the dosage during the drug dispensing process and ensure structural applicability under different drug size conditions. Background Technology

[0002] In the post-processing stage of propellant production, it is often necessary to distribute the uniformly mixed granular propellant into several propellant packets or containers to ensure that the propellant content in each packet is consistent, thereby guaranteeing the reproducibility of ballistic performance in subsequent designs. The consistency of propellant loading and the uniformity of loading density are core factors affecting the muzzle velocity and final firing accuracy of artillery. Especially in the assembly of ammunition for certain caliber weapons, it is often necessary to precisely and evenly distribute the propellant into several portions to meet the production requirements of the basic ammunition load. Therefore, how to achieve high-precision uniformity and quantitative loading of propellant in cartridge cases of different specifications has always been one of the key points in the technical research of energetic material loading.

[0003] Currently, the industry mainly uses weighing and volumetric methods for quantitative filling of pharmaceuticals. Although the weighing method is theoretically more accurate, it is often limited by the electrostatic adsorption of pharmaceuticals, changes in ambient temperature, and the response speed of equipment, resulting in problems such as low production efficiency and difficulty in guaranteeing dynamic accuracy. In contrast, the volumetric quantitative filling technology is simple in structure, has a fast response speed, and is easy to automate and continuously operate, so the document plays a very important role in mass production.

[0004] Currently, in the pharmaceutical manufacturing industry, the quantitative dispensing of granular pharmaceuticals mainly relies on two methods: one is the traditional volumetric method, which involves manual weighing or measuring using measuring cups or constant-volume funnels; the other is the automated dispensing lines developed in recent years. However, pharmaceuticals are flammable and explosive hazardous materials, and the safety requirements for their production process are extremely stringent.

[0005] Traditional manual weighing methods are not only inefficient and labor-intensive, but also pose safety hazards such as friction and static electricity during manual contact, and have poor consistency.

[0006] Existing technologies include some automated mixing or distributing devices, but these devices are often complex in structure, employing intricate rotating mechanisms, flow meters, or electronic control systems. In high-hazard explosives workshops, the use of electronic components is strictly limited, and the complex mechanical transmission structures increase potential points of failure and safety risks.

[0007] Therefore, how to provide a propellant equalization device and method that can adapt to different cartridge specifications, eliminate density differences through optimized structure, and has high performance, thereby solving the shortcomings of existing technologies in terms of equalization accuracy, consistency, and safety, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0008] In view of the above problems, the present invention provides a material distribution device for overcoming or at least partially solving the above problems. The device has a simple structure, requires no external power, has high intrinsic safety, and can quickly and uniformly classify granular pharmaceuticals.

[0009] This invention provides the following solution: A material equalization device is used in the post-processing stage of pharmaceutical production to accurately and evenly distribute the pharmaceuticals into several medicine bags to achieve consistency in the amount of medicine. The device includes a funnel-type drug equalization mechanism, a drug equalization follow-up opening and closing mechanism, and a turntable-type automatic feeding and dispensing mechanism. The funnel-type drug distribution mechanism includes a first pneumatic guide rail assembly, a grid scraper, a funnel, a pneumatic vibration module, baffles, and individual drug tubes. The funnel is fixed to the mounting base with screws, the grid scraper is fixed to the first pneumatic guide rail assembly with screws, and the funnel and the pneumatic vibration module are fixedly connected with anti-loosening screws. The funnel has a trapezoidal structure, and the interior of the funnel is divided into multiple independent areas according to the number of individual drug tubes. The baffles are driven by cylinders and assembled on each individual drug tube to control the opening and closing of the individual drug tubes. The medicine distribution follow-up opening and closing mechanism includes a connecting component, a second pneumatic guide rail component, a medicine bag connecting rod, and a lever; the connecting component is assembled with screws and then connected to the second pneumatic guide rail component via a connecting rod, the lever is fixedly connected to the connecting component with screws, and the medicine bag connecting rod is used to carry the medicine bag; The rotary automatic feeding and dispensing mechanism includes a cylinder assembly, a wedge assembly, a connecting rod assembly, a medicine bag, and a rotary assembly; the cylinder assembly is fixed to the rotary assembly by bolts and a mounting plate, and is connected to the wedge assembly, the wedge assembly is fixed by screws, and the connecting rod assembly is used to clamp the medicine bag; In this process, after the medicine is loaded into the funnel, the pneumatic vibration module drives the funnel to vibrate. The first pneumatic guide rail assembly drives the grid scraper to move back and forth, distributing the medicine evenly into the independent areas of the trapezoidal funnel. The baffle opens to allow the medicine to enter the independent medicine tube. Subsequently, the medicine distribution follow-up opening and closing mechanism drives the connecting assembly through the second pneumatic guide rail assembly to rotate the lever to open the medicine bag. After the medicine is loaded into the medicine bag, the lever rotates back to close the medicine bag. The cylinder assembly of the turntable automatic feeding and dispensing mechanism drives the wedge assembly to move down to open the connecting rod assembly. After filling is completed, the wedge assembly moves up to close the medicine bag. The turntable assembly rotates to transfer the filled medicine bag to the next station and transfer the new medicine bag to the filling station.

[0010] Preferably, the grid scraper achieves the scraping action of the medicine by the reciprocating movement of the first pneumatic guide rail assembly, and evenly distributes the medicine to each independent area in the funnel, with the bottom of the funnel connected to the independent medicine tubes one by one.

[0011] Preferably, the trapezoidal structure of the funnel has a number of discharge ports at the bottom equal to the number of independent drug tubes, and a baffle is set above each discharge port. All baffles are synchronously driven by the same cylinder to achieve linkage opening or linkage closing.

[0012] Preferably, the air vibration module is fixedly installed on the side wall of the funnel. When the air vibration module is working, it drives the funnel to generate high-frequency vibration, which, together with the reciprocating scraping action of the grid scraper, eliminates the difference in drug quantity between independent drug tubes caused by uneven drug flow.

[0013] Preferably, the connecting assembly includes a linkage mechanism and a mounting base. The paddle is fixedly mounted on the mounting base. The second pneumatic guide rail assembly drives the mounting base to rotate around the axis through the linkage mechanism, thereby causing the paddle to open or close the medicine bag opening.

[0014] Preferably, when the paddle opens the medicine bag opening, the medicine bag is loaded onto the medicine bag connecting rod and maintains a fixed posture. The rotation angle of the paddle matches the opening size of the medicine bag, ensuring that the medicine bag opening is fully opened for the medicine to be loaded.

[0015] Preferably, the wedge assembly includes a wedge block and a guide rod. The cylinder assembly drives the wedge block to move in a vertical direction. The inclined surface of the wedge block contacts the connecting rod assembly. When the wedge block moves downward, it pushes the connecting rod assembly to open through the inclined surface thrust. When the wedge block moves upward, the connecting rod assembly closes under its own elastic restoring force.

[0016] Preferably, the linkage assembly includes at least two symmetrically arranged clamping arms, one end of which abuts against the inclined surface of the wedge-shaped assembly, and the other end of which clamps the medicine bag. The middle part of the clamping arm is mounted on the turntable assembly via a rotating shaft.

[0017] Preferably, the turntable assembly is provided with multiple stations evenly distributed along the circumference. Each station is equipped with a set of connecting rod assemblies and medicine bags. Every time the turntable assembly rotates by one station interval, the medicine bag that has been filled is turned out of the filling station, and the next empty medicine bag is turned into the filling station.

[0018] Preferably, the independent areas inside the funnel are provided with partition walls, which divide the inner cavity of the funnel into several isolated chambers. The cross-sectional area of ​​each chamber matches the cross-sectional area of ​​the corresponding independent drug tube, ensuring that the drug filling height in each chamber is consistent.

[0019] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects: This application provides a material distribution device that solves the problem of consistent and stable drug quantity in different launch packages during the post-processing stage of drug manufacturing. To address the potential for errors in drug quantity during the filling process, the designed trapezoidal funnel mechanism, leveling mechanism, and opening / closing mechanism, relying on unidirectional and dispensing mechanisms, achieve consistent and stable drug quantity. This not only enables stable control of the drug quantity during the dispensing process but also ensures structural applicability to different drug size states.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a material distribution device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the funnel-type drug distribution mechanism provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the drug distribution follow-up opening and closing mechanism provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the rotary automatic feeding and dispensing mechanism provided in an embodiment of the present invention.

[0023] In the figure: 1. Funnel-type drug distribution mechanism, 101. First pneumatic guide rail assembly, 102. Grating scraper, 103. Funnel, 104. Air vibration module, 105. Baffle, 106. Independent drug tube, 2. Drug distribution follow-up opening and closing mechanism, 201. Connecting assembly, 202. Second pneumatic guide rail assembly, 203. Drug bag connecting rod, 204. Turntable automatic feeding and dispensing mechanism, 3. Cylinder assembly, 301. Wedge assembly, 302. Connecting rod assembly, 303. Drug bag, 304. Turntable assembly, 305. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0025] See Figure 1 This invention provides a material distribution device for the post-processing stage of pharmaceutical manufacturing, which precisely and evenly distributes the pharmaceutical agent into several medicine bags to achieve consistent drug quantity. Figure 1 As shown, the device may include a funnel-type drug dispensing mechanism 1, a drug dispensing follow-up opening and closing mechanism 2, and a rotary automatic feeding and dispensing mechanism 3.

[0026] This device primarily addresses the stringent requirements for consistency and stability of drug quantity in different launch packages during the post-processing stage of drug manufacturing. It also addresses the issue of potential errors in drug quantity during the filling process. The designed trapezoidal funnel mechanism, leveling mechanism, and opening / closing mechanism, relying on unidirectional and dispensing mechanisms, achieve consistency and stability in drug quantity. Therefore, the drug dispensing device designed in this invention not only achieves stable control of drug quantity during the dispensing process but also ensures structural applicability to different drug size states.

[0027] The funnel-type agent distribution mechanism 1 is used in the post-processing stage of agent production and manufacturing. It accurately and evenly distributes the agent into several portions. After the agent is leveled by a trapezoidal funnel, a grid scraper and an independent agent tube, the agent is evenly distributed into each agent band, so as to achieve the consistency of the charge amount and ensure the reproducibility, stability and reliability of ballistic performance in subsequent design.

[0028] like Figure 2 As shown, the funnel-type drug distribution mechanism 1 is mainly composed of components such as the first pneumatic guide rail assembly 101, the grid scraper 102, the funnel 103, the air vibration module 104, the baffle 105, and the independent drug tube 106.

[0029] Specifically, the funnel 103 is fixed to the mounting base with screws, and the grid scraper 102 is fixed to the first pneumatic guide rail assembly 101 with screws. The first pneumatic guide rail assembly 101 enables the grid scraper 102 to move back and forth (i.e., reciprocate). The funnel 103 and the air vibration module 104 are fixed together with loosening screws. The funnel 103 has a trapezoidal structure, and the inside of the funnel is designed as an independent area according to the number of independent drug tubes 106. In this embodiment, there are partition walls between the independent areas inside the funnel. The partition walls divide the inner cavity of the funnel into several isolated chambers. The cross-sectional area of ​​each chamber matches the cross-sectional area of ​​the corresponding independent drug tube 106 to ensure that the drug filling height in each chamber is consistent. The trapezoidal structure of the funnel has an equal number of discharge ports at its bottom as the number of independent medicine tubes 106. Each discharge port is connected to a corresponding independent medicine tube 106. A baffle 105 is positioned above each discharge port, and all baffles are synchronously driven by the same cylinder to open or close in unison. The baffles 105 move back and forth via the cylinder, and are mounted on each individual medicine tube to uniformly achieve open and closed states. The baffles open the medicine orifices, thus enabling uniform medicine distribution and loading.

[0030] After a certain amount of medicine is loaded into the funnel 103, the air vibration module 104 is fixedly installed on the side wall of the funnel. When the air vibration module 104 is working, it drives the funnel to generate high-frequency vibration. This, combined with the back-and-forth movement (scraping action) of the grid scraper 102 driven by the first pneumatic guide rail assembly 101, evenly distributes the medicine into individual workstations within the trapezoidal funnel, preventing inconsistent amounts of medicine in each individual medicine tube. Stable and consistent medicine distribution is achieved through the design of independent medicine tubes working in conjunction with the grid scraper and air vibration device.

[0031] The drug distribution follow-up opening and closing mechanism drives the lever to open and close through a linkage and guide rail mechanism, thereby realizing the opening and closing of different drug packs and achieving fully automated drug dispensing function.

[0032] like Figure 3 As shown, the medicine distribution follow-up opening and closing mechanism 2 is mainly composed of components such as connecting component 201, second pneumatic guide rail component 202, medicine bag connecting rod 203, and paddle 204.

[0033] Specifically, the connecting assembly 201 is assembled together with screws and connected to the second pneumatic guide rail assembly 202 via a connecting rod. The connecting assembly 201 includes a linkage mechanism and a mounting base. The paddle 204 is assembled integrally with the connecting assembly by screws and is fixedly mounted on the mounting base. The second pneumatic guide rail assembly 202 drives the mounting base to rotate around its axis via the linkage mechanism, causing the paddle 204 to open or close the medicine bag opening. The medicine bag connecting rod 203 is used to carry the medicine bag, and the medicine bag is mounted on the medicine bag connecting rod 203.

[0034] After the medicine passes through the equalization device, each individual medicine tube contains a uniform amount of medicine. At this point, the medicine equalization follow-up opening and closing mechanism drives the connecting assembly 201 via the second pneumatic guide rail assembly 202, causing the lever 204 to rotate and open the medicine bag. When the lever 204 opens the medicine bag opening, the medicine bag is loaded onto the medicine bag connecting rod 203 and maintains a fixed posture. The rotation angle of the lever 204 matches the opening size of the medicine bag, ensuring that the medicine bag opening is fully opened for medicine filling. After the medicine is filled, the lever 204 automatically rotates back, at which point the medicine bag closes, completing the equalization of medicine into each individual medicine bag.

[0035] The rotary automatic feeding and dispensing mechanism uses a rotary table and pneumatic guide rails to automatically close the medicine bags after the medicine is evenly dispensed into the bags and to replenish the bags with new ones in a timely manner.

[0036] like Figure 4 As shown, the rotary automatic feeding and dispensing mechanism 3 is mainly composed of components such as cylinder assembly 301, wedge assembly 302, connecting rod assembly 303, medicine bag 304, and rotary assembly 305.

[0037] Specifically, the cylinder assembly 301 is fixed to the turntable assembly 305 by bolts and a mounting plate, and then connected to the wedge assembly 302 by screws. The wedge assembly 302 includes a wedge block and a guide rod. The connecting rod assembly 303 is used to clamp the medicine bag 304. The connecting rod assembly includes at least two symmetrically arranged clamping arms. One end of the clamping arm abuts against the inclined surface of the wedge assembly, and the other end clamps the medicine bag. The middle part of the clamping arm is mounted on the turntable assembly via a rotating shaft. The turntable assembly 305 has multiple stations evenly distributed circumferentially, and each station corresponds to a set of connecting rod assemblies and medicine bags 304.

[0038] After the dispensing mechanism completes the dispensing of the medicine, the cylinder assembly 301 rotates, causing the wedge assembly 302 to move downwards. The inclined surface of the wedge block contacts the connecting rod assembly. As the wedge block moves downwards, the inclined surface pushes the connecting rod assembly 303 to open, thus opening the medicine bag. After the medicine is filled, the cylinder assembly 301 rotates, the wedge assembly 302 moves upwards, and the connecting rod assembly 303 automatically closes under its own elastic restoring force, thereby automatically closing the medicine bag and rotating it to the next station. Every time the turntable assembly 305 rotates one station interval, it rotates the filled medicine bag out of the filling station and simultaneously rotates the next empty medicine bag into the filling station. At this time, the new medicine bag rotates to the filling station to continue the cycle after filling the medicine.

[0039] Work process: After the medicine is loaded into the funnel 103, the pneumatic vibration module 104 drives the funnel to vibrate. The first pneumatic guide rail assembly 101 drives the grid scraper 102 to move back and forth, distributing the medicine evenly into the independent areas of the trapezoidal funnel. The baffle 105 opens, allowing the medicine to enter the independent medicine tube 106. Subsequently, the medicine distribution follow-up opening and closing mechanism drives the connecting assembly 201 through the second pneumatic guide rail assembly 202, which in turn drives the paddle 204 to rotate and open the medicine bag. After the medicine is loaded into the medicine bag 304, the paddle 204 rotates back to close the medicine bag. The cylinder assembly 301 of the rotary automatic feeding and dispensing mechanism drives the wedge assembly 302 to move down and open the connecting rod assembly 303. After filling, the wedge assembly 302 moves up, causing the connecting rod assembly 303 to close the medicine bag. The rotary assembly 305 rotates to transfer the filled medicine bag to the next station and transfers the new medicine bag to the filling station.

[0040] In summary, the material dispensing device provided in this application uses a fully automated and very simple mechanical structure to achieve uniform dispensing and bagging of medicines. This avoids manual weighing or measurement, eliminating the potential for errors in the amount of medicine packaged due to various inaccuracies. Furthermore, the fully automated equipment improves overall equipment safety, and no adjustments are required after changing to different sizes of medicines. It completely avoids the shortcomings of existing designs, eliminating problems such as equipment start-up debugging and structural replacement adjustments.

[0041] Production personnel using this device can effectively reduce uneven drug distribution, low efficiency, and high labor intensity during the production process. It also completely avoids safety hazards such as friction and static electricity that occur during manual handling. Furthermore, its simple mechanical structure greatly improves safety during drug dispensing. Additionally, it can adapt to production normally even when the condition of incoming parts changes, without requiring secondary adjustments to the equipment mechanism. The consistency and stability of drug dispensing are well controlled.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on its differences from other embodiments. In particular, for system or system embodiments, since they are fundamentally similar to method embodiments, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. Components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A material distribution device, characterized in that, For the post-processing stage of pharmaceutical production, the pharmaceuticals are precisely and evenly distributed into several medicine bags to achieve consistent dosage. The device is characterized by comprising a funnel-type pharmaceutical equalization mechanism, a pharmaceutical equalization follow-up opening and closing mechanism, and a turntable-type automatic feeding and dispensing mechanism. The funnel-type drug distribution mechanism includes a first pneumatic guide rail assembly, a grid scraper, a funnel, a pneumatic vibration module, baffles, and individual drug tubes. The funnel is fixed to the mounting base with screws, the grid scraper is fixed to the first pneumatic guide rail assembly with screws, and the funnel and the pneumatic vibration module are fixedly connected with anti-loosening screws. The funnel has a trapezoidal structure, and the interior of the funnel is divided into multiple independent areas according to the number of individual drug tubes. The baffles are driven by cylinders and assembled on each individual drug tube to control the opening and closing of the individual drug tubes. The medicine distribution follow-up opening and closing mechanism includes a connecting component, a second pneumatic guide rail component, a medicine bag connecting rod, and a lever; the connecting component is assembled with screws and then connected to the second pneumatic guide rail component via a connecting rod, the lever is fixedly connected to the connecting component with screws, and the medicine bag connecting rod is used to carry the medicine bag; The rotary automatic feeding and dispensing mechanism includes a cylinder assembly, a wedge assembly, a connecting rod assembly, a medicine bag, and a rotary assembly; the cylinder assembly is fixed to the rotary assembly by bolts and a mounting plate, and is connected to the wedge assembly, the wedge assembly is fixed by screws, and the connecting rod assembly is used to clamp the medicine bag; In this process, after the medicine is loaded into the funnel, the pneumatic vibration module drives the funnel to vibrate. The first pneumatic guide rail assembly drives the grid scraper to move back and forth, distributing the medicine evenly into the independent areas of the trapezoidal funnel. The baffle opens to allow the medicine to enter the independent medicine tube. Subsequently, the medicine distribution follow-up opening and closing mechanism drives the connecting assembly through the second pneumatic guide rail assembly to rotate the lever to open the medicine bag. After the medicine is loaded into the medicine bag, the lever rotates back to close the medicine bag. The cylinder assembly of the turntable automatic feeding and dispensing mechanism drives the wedge assembly to move down to open the connecting rod assembly. After filling is completed, the wedge assembly moves up to close the medicine bag. The turntable assembly rotates to transfer the filled medicine bag to the next station and transfer the new medicine bag to the filling station.

2. The material distribution device according to claim 1, characterized in that, The grid scraper achieves the scraping action of the medicine by the reciprocating movement of the first pneumatic guide rail assembly, and evenly distributes the medicine to each independent area in the funnel. The bottom of the funnel is connected to the independent medicine tubes one by one.

3. The material distribution device according to claim 2, characterized in that, The trapezoidal structure of the funnel has a number of discharge ports at the bottom equal to the number of independent drug tubes. Each discharge port is equipped with a baffle above it. All baffles are driven synchronously by the same cylinder to achieve linkage opening or linkage closing.

4. The material distribution device according to claim 1, characterized in that, The air vibration module is fixedly installed on the side wall of the funnel. When the air vibration module is working, it drives the funnel to generate high-frequency vibration, which, together with the reciprocating scraping action of the grid scraper, eliminates the difference in drug quantity caused by uneven drug flow between independent drug tubes.

5. The material distribution device according to claim 1, characterized in that, The connecting assembly includes a linkage mechanism and a mounting base. The paddle is fixedly mounted on the mounting base. The second pneumatic guide rail assembly drives the mounting base to rotate around the axis through the linkage mechanism, thereby causing the paddle to open or close the medicine bag opening.

6. The material distribution device according to claim 5, characterized in that, When the paddle opens the medicine bag, the medicine bag is loaded onto the medicine bag connecting rod and maintains a fixed posture. The rotation angle of the paddle matches the size of the medicine bag opening, ensuring that the medicine bag opening is fully opened for the medicine to be filled.

7. The material distribution device according to claim 1, characterized in that, The wedge assembly includes a wedge block and a guide rod. The cylinder assembly drives the wedge block to move in a vertical direction. The inclined surface of the wedge block contacts the connecting rod assembly. When the wedge block moves downward, it pushes the connecting rod assembly open through the inclined surface thrust. When the wedge block moves upward, the connecting rod assembly closes under the action of its own elastic restoring force.

8. The material distribution device according to claim 7, characterized in that, The linkage assembly includes at least two symmetrically arranged clamping arms. One end of the clamping arm abuts against the inclined surface of the wedge-shaped assembly, and the other end clamps the medicine bag. The middle part of the clamping arm is mounted on the turntable assembly via a rotating shaft.

9. The material distribution device according to claim 1, characterized in that, The turntable assembly has multiple stations evenly distributed along the circumference. Each station is equipped with a set of connecting rod assemblies and medicine bags. Every time the turntable assembly rotates one station interval, it turns the filled medicine bag out of the filling station and turns the next empty medicine bag into the filling station.

10. The material distribution device according to claim 1, characterized in that, The funnel is divided into several isolated chambers by partition walls between independent areas. The cross-sectional area of ​​each chamber matches the cross-sectional area of ​​the corresponding independent drug tube, ensuring that the drug filling height in each chamber is consistent.

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