Device for achieving buffering, feeding, conveying, positioning and cap pulling of injectors

Abstract

The utility model provides a device for achieving buffering, feeding, conveying, positioning and cap pulling of syringes, and belongs to the technical field of medical dispensing. The device structurally comprises a supporting bottom plate and two supporting side plates fixedly installed on the two sides of the surface of the supporting bottom plate, a conveying mechanism is installed between the two supporting side plates, a positioning mechanism is installed at the top end of the supporting side plates, the positioning end of the positioning mechanism is horizontally aligned with the output end of the conveying mechanism, and two medicine bag motor protective covers are installed on the outer walls of the two supporting side plates; one side of the outer wall of each medicine bag motor shield is provided with an auxiliary positioning mechanism, the other side of the outer wall of each medicine bag motor shield is provided with a cap pulling mechanism, through cooperation of the conveying mechanism, the positioning mechanisms, the auxiliary positioning mechanisms and the cap pulling mechanisms, automatic treatment of buffering feeding, conveying, positioning and cap pulling of syringes is achieved, the medicine dispensing efficiency is improved, and the medicine dispensing cost is reduced. The risks of human errors and cross infection are reduced, and the labor cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of medical drug dispensing, and more specifically, to a device for realizing caching, feeding, conveying, positioning, and cap removal of syringes. Background Art

[0002] In the medical field, especially during the process of intravenous drug preparation, the automated handling of syringes is an important step. However, in existing drug dispensing technologies, the feeding, conveying, and positioning processes of syringes often rely on manual operations, which not only increase the risk of human errors during the drug dispensing process but also greatly reduce the drug dispensing efficiency. Especially in scenarios where syringes need to be frequently replaced, such as when each patient has different medications, to avoid cross-contamination of drugs, a new syringe needs to be replaced after each bag of medicine is prepared.

[0003] Specifically, the traditional method of handling syringes mainly relies on manual operations. Only one syringe can be processed at a time, and a new syringe needs to be reinstalled after each bag of medicine is prepared. This is not only inefficient but also increases the risk of cross-infection. Most drug dispensing devices require manual installation of syringes before drug dispensing, and after drug dispensing is completed, manual removal and replacement of syringes are also required to prepare for the next bag of medicine. Such repetitive manual operations are not only time-consuming but also increase labor costs. In addition, since each patient may have different medications, to avoid harm to subsequent patients caused by drug residues, syringes cannot be reused, which further increases the frequency and complexity of manual operations. In an automated drug dispensing system, the precise placement and positioning of syringes are also a challenge because syringes need to be accurately placed at positions where the machine can grasp them for subsequent drug extraction and dispensing operations. Another problem is the cap removal of syringes. Before drug dispensing, the cap of the syringe needs to be removed so that the needle can contact the liquid medicine. In many existing systems, this step also needs to be completed manually, which not only increases the operation time but also may cause accidental injury or contamination of the needle. Summary of the Utility Model

[0004] To make up for the above deficiencies, this application provides a device for realizing caching, feeding, conveying, positioning, and cap removal of syringes to solve the problems raised in the above background art.

[0005] To achieve the above object, the technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A device for realizing syringe buffer loading, conveying, positioning and capping, comprises a supporting base plate and two supporting side plates fixedly installed on both sides of the surface of the supporting base plate, characterized in that a conveying mechanism is installed between the two supporting side plates, and a positioning mechanism is installed at the top, the positioning end of the positioning mechanism is horizontally aligned with the output end of the conveying mechanism, two medicine bag motor shields are installed on the outer walls of the two supporting side plates, an auxiliary positioning mechanism is installed on one side of the outer wall of the two medicine bag motor shields, and a capping mechanism is installed on the other side.

[0007] Furthermore, the conveying mechanism includes a servo motor, a reducer, an active synchronous wheel, three driven synchronous wheels, three inert synchronous wheel shafts, two retaining springs, two sets of tensioning members, a synchronous belt and a plurality of needle tube clamps. The servo motor is fixedly mounted on the surface of the reducer, and the output end extends to the inside of the reducer and is connected to each other in a transmission manner. The reducer is fixedly mounted on the outer wall of the support side plate, and the output end passes through the support side plate and is fixedly connected to one end of the active synchronous wheel. The active synchronous wheel and the three driven synchronous wheels are respectively mounted on the two support At the four corners between the support side plates, the other end of the active synchronous wheel is axially connected to the support side plates, one end of the three inert synchronous wheel axles passes through the two support side plates and the three driven synchronous wheels, the two retaining springs are locked and connected with the corresponding inert synchronous wheel axles, the two groups of tensioners are respectively installed on the outer walls of the two support side plates, and the tensioning ends are tightly connected with the corresponding inert synchronous wheel axles, the inner wall of the synchronous belt is connected to the outer walls of the active synchronous wheel and the three driven synchronous wheels, and a number of needle tube clamps are installed on the outer wall of the synchronous belt at equal intervals.

[0008] Furthermore, the tensioning member includes a tensioning seat, a tensioning bolt and a slide groove. The tensioning seat bolt is fixed to the outer wall of the supporting side plate, and a threaded hole is opened on the surface. The outer wall of the tensioning bolt is threadedly connected to the inner wall of the threaded hole and is supported and connected to the corresponding inert synchronous wheel axle. The slide groove is opened on the outer wall of the supporting side plate, and the corresponding outer wall of the inert synchronous wheel axle is slidably connected to the inner wall of the slide groove.

[0009] Furthermore, the positioning mechanism includes a needle lifting block, a needle tube positioning block, two boss light rods, a diffuse reflection photoelectric switch, a window and a mounting seat. The needle lifting block and the needle tube positioning block are respectively installed on the top of the two supporting side panels, and the surface has the two boss light rods. The window is opened on the top of the medicine bag motor shield. The diffuse reflection photoelectric switch is fixed on the mounting seat, and the detection end corresponds to the window. The mounting seat is bolted to the outer wall of the supporting side panel.

[0010] Furthermore, the auxiliary positioning mechanism includes a syringe photoelectric switch shield, a plurality of photoelectric reflection switches, two syringe stoppers, a shaft rotating piece, and a photoelectric sensor. The syringe photoelectric switch shield is installed on one side of the support bottom plate. A plurality of the photoelectric reflection switches are installed at equal intervals inside the syringe photoelectric switch shield. The two syringe stoppers are respectively installed on the side walls of the two medicine bag motor shields. One end of the shaft rotating piece is connected to the shaft connection end of the driving synchronous pulley. The shaft rotating piece is installed on the photoelectric sensor and is installed on the outer wall of the support side plate.

[0011] Furthermore, the cap-pulling mechanism includes a fixed seat, a cylinder, and a syringe cap clamp. The fixed seat is installed on the other side of the support bottom plate. The cylinder is fixedly installed on the top of the fixed seat, and the syringe cap clamp is installed at the telescopic end.

[0012] The utility model has the following beneficial effects:

[0013] 1. The conveying mechanism of the utility model is the core part of the device. Through the drive of the servo motor and the reducer, the rotation of the driving synchronous pulley and the driven synchronous pulley is realized, and then the syringe clamps on the synchronous belt are driven to move. The syringe clamps are installed at equal intervals on the outer wall of the synchronous belt, and can carry and convey multiple syringes at one time, significantly improving the medicine preparation efficiency. At the same time, the design of the idler synchronous pulley shaft and the tensioning member ensures the stability and reliability of the synchronous belt. By placing multiple syringes at one time, compared with the traditional single-piece feeding method, the feeding efficiency is greatly improved, the time of manual repeated operation is reduced, and the medicine preparation process is made more efficient.

[0014] 2. The positioning mechanism of the utility model ensures the accurate position of the syringe during the conveying process. The needle lifting pressing block and the syringe positioning block work together to fix the syringe in the specified position, facilitating subsequent operations. The combined use of the shoulder optical rod and the diffuse reflection photoelectric switch further improves the accuracy and reliability of the positioning. This provides the accurate position of the syringe for subsequent automated operations, reduces errors, and improves the accuracy of automated medicine preparation.

[0015] 3. The auxiliary positioning mechanism of the utility model performs auxiliary positioning on the syringe through the cooperation of the photoelectric reflection switch and the syringe stopper, ensuring its stability and accuracy during the conveying process. At the same time, the combination of the shaft rotating piece and the photoelectric sensor real-time monitors the rotation state of the conveying mechanism, providing a strong guarantee for the safe operation of the entire device. This provides the accurate position of the syringe for subsequent automated operations, reduces errors, and improves the accuracy of automated medicine preparation.

[0016] 4. The cap-pulling mechanism of the present utility model solves the problem of automatic cap-pulling of syringes. Through the telescopic movement of the cylinder, the needle tube cap clamp is driven to clamp and pull out the needle head cap of the syringe, avoiding the problems of needle head damage or contamination that may be caused by manual operation. This function not only saves the time of manual operation but also reduces the possibility of accidental needle head damage or contamination.

[0017] 5. The present utility model transports the syringe to the designated position through the conveying mechanism and uses the auxiliary positioning mechanism to ensure the correct direction of the syringe, greatly shortening the time for the manipulator to grasp the needle tube, thereby improving the efficiency of the entire drug dispensing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic structural diagram of the device for realizing syringe buffer feeding, conveying, positioning and cap-pulling provided by the embodiment of the present application;

[0020] Figure 2 is a schematic internal structure diagram of the device for realizing syringe buffer feeding, conveying, positioning and cap-pulling provided by the embodiment of the present application;

[0021] Figure 3 is a schematic partial identification structure diagram of the device for realizing syringe buffer feeding, conveying, positioning and cap-pulling provided by the embodiment of the present application.

[0022] In the figure: 1 - support bottom plate; 2 - support side plate; 3 - conveying mechanism; 4 - positioning mechanism; 5 - medicine bag motor cover; 6 - auxiliary positioning mechanism; 7 - cap-pulling mechanism; 31 - servo motor; 32 - reducer; 33 - active synchronous pulley; 34 - driven synchronous pulley; 35 - idler synchronous pulley shaft; 36 - circlip; 37 - tensioning member; 38 - synchronous belt; 39 - needle tube clamp; 371 - tensioning seat; 372 - tensioning bolt; 373 - chute; 41 - needle lifting pressure block; 42 - needle tube positioning block; 43 - shoulder polished rod; 44 - diffuse reflection photoelectric switch; 45 - window; 56 - mounting seat; 61 - needle tube photoelectric switch cover; 62 - photoelectric reflection switch; 62 - needle tube stop bar; 64 - shaft rotating piece; 65 - photoelectric sensor; 71 - fixed seat; 72 - cylinder; 73 - needle head cap clamp. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0024] Embodiment:

[0025] Please refer to Figure 1 、 Figure 2 、 Figure 3 A device for realizing the caching, feeding, conveying, positioning and cap removal of syringes, including a support bottom plate 1 and two support side plates 2 fixedly installed on both sides of the surface of the support bottom plate 1.

[0026] Among them, the combined design of the support bottom plate 1 and the support side plates 2 can form a solid and stable support foundation, and ensure the accurate installation and operation of other components.

[0027] Please refer to Figure 1 、 Figure 2 、 Figure 3 A device for realizing the caching, feeding, conveying, positioning and cap removal of syringes, including a conveying mechanism 3 installed between two support side plates 2, and a positioning mechanism 4 installed at the top. Two medicine bag motor covers 5 are installed on the outer walls of the two support side plates 2. An auxiliary positioning mechanism 6 is installed on one side of the outer walls of the two medicine bag motor covers 5, and a cap removal mechanism 7 is installed on the other side.

[0028] Among them, the conveying mechanism 3 can achieve efficient feeding and precise conveying of the syringe, providing a solid foundation for subsequent positioning and cap removal operations. The servo motor 31 is fixedly installed on the surface of the speed reducer 32, and its output end is interconnected with the inside of the speed reducer 32. The speed reducer 32 is fixedly installed on the outer wall of the support side plate 2, and its output end is fixedly connected to one end of the driving synchronous pulley 33. Such a configuration provides the power and speed control required by the conveying mechanism 3 and achieves the purpose of increasing torque and reducing speed. The driving synchronous pulley 33 is driven by the output end of the speed reducer 32, and the other end thereof is axially connected to the support side plate 2 to ensure stable rotation. The three driven synchronous pulleys 34 are respectively installed between the two support side plates 2 and cooperate with the driving synchronous pulley 33 to form a stable conveying track. One end of the three idler synchronous pulley shafts 35 penetrates through the two support side plates 2 and is connected to the inside of the three driven synchronous pulleys 34 to ensure the stable rotation of the driven synchronous pulleys 34. The two circlips 36 are fixedly connected to the corresponding idler synchronous pulley shafts 35 to fix the positions of the idler synchronous pulley shafts 35 and prevent them from moving or loosening. The two tensioning members 37 are respectively installed on the outer walls of the two support side plates 2, and their tensioning ends are tightly connected to the corresponding idler synchronous pulley shafts 35. The tensioning members 37 are used to adjust the tension of the synchronous belt 38 to ensure that the synchronous belt 38 maintains appropriate tension and stability during conveying. The inner wall of the synchronous belt 38 is connected to the outer walls of the driving synchronous pulley 33 and the three driven synchronous pulleys 34 to form a closed conveying track. A number of syringe clamps 39 are installed on the outer wall of the synchronous belt 38 at equal intervals for clamping and conveying the syringe.

[0029] Among them, when the design of the tensioning member 37 can adjust the tension of the synchronous belt 38, the tensioning seat 371 is fixed on the outer wall of the support side plate 2 by bolts, and a threaded hole is provided on its surface. The outer wall of the tensioning bolt 372 is threadedly connected to the inner wall of the threaded hole on the surface of the tensioning seat 371. By rotating the tensioning bolt 372, it can be in abutting connection with the corresponding idler synchronous pulley shaft 35, thereby adjusting the tension of the synchronous belt 38. The sliding groove 373 is opened on the outer wall of the support side plate 2 and is slidably connected to the outer wall of the idler synchronous pulley shaft 35. The sliding groove 373 provides a stable sliding track for the idler synchronous pulley shaft 35 to ensure that it can move smoothly and smoothly during the process of adjusting the tension.

[0030] Among them, the positioning mechanism 4 is designed to position the syringe. The needle lifting pressure block 41 and the syringe barrel positioning block 42 are respectively installed at the tops of the two support side plates 2 to form a positioning space for the syringe. The surfaces of these two components each have two shoulder rods 43, which are used to cooperate with specific parts of the syringe during the positioning process to achieve precise positioning. When the syringe is conveyed to the positioning mechanism 4, the shoulder rods 43 will contact the corresponding parts of the syringe and guide the syringe into the correct position. The diffuse reflection photoelectric switch 44 is fixed on the mounting base 46, and its detection end corresponds to the window 45 at the top of the medicine bag motor cover 5. When the syringe is conveyed to the designated position, a specific part of it will block the light of the window 45. After the diffuse reflection photoelectric switch 44 receives this change, it will send a signal to confirm that the syringe has reached the designated position. The window 45 is opened at the top of the medicine bag motor cover 5 to allow the detection light of the diffuse reflection photoelectric switch 44 to pass through. The mounting base 46 is used to fix the diffuse reflection photoelectric switch 44 and ensure that its detection end corresponds to the window 45.

[0031] Among them, the medicine bag motor cover 5 is designed to protect the parts installed on the support side plates 2.

[0032] Among them, the auxiliary positioning mechanism 6 is designed to cooperate with the positioning mechanism 4 to further improve the precise auxiliary positioning of the syringe and ensure its stability and accuracy in subsequent operations. The syringe barrel photoelectric switch cover 61 is installed on one side of the support bottom plate 1 to protect the internal photoelectric reflection switch 62 from external interference. A number of photoelectric reflection switches 62 are installed equidistantly inside the syringe barrel photoelectric switch cover 61 to detect the position of the passing syringe. When the syringe passes by, it will block the light of some of the photoelectric reflection switches 62, thereby triggering the output of corresponding signals. Two syringe barrel stoppers 63 are respectively installed on the side walls of the two medicine bag motor covers 5 to conduct preliminary positioning on the syringe during the conveying process and prevent it from deviating from the track. The shaft rotating piece 64 is designed with specific marks or structures to cooperate with the photoelectric sensor 65 to monitor the rotation speed of the driving synchronous pulley 33. The signal output of the photoelectric sensor 65 can be used to calculate the conveying speed or position of the syringe to further assist in the precise control of the positioning mechanism 6.

[0033] Among them, the design of the cap-pulling mechanism 7 realizes the automated cap-pulling operation, improving the work efficiency and the degree of automation of the production line. The fixed seat 71 is installed on the other side of the support base plate 1 and serves as the basic support structure of the cap-pulling mechanism 7. The design of the fixed seat 71 needs to consider stability and precision to ensure the smooth progress of the cap-pulling operation. The cylinder 72 is fixedly installed at the top of the fixed seat 71 and serves as the power source for the cap-pulling action. The telescopic end of the cylinder 72 drives the syringe cap clamp 73 to move to complete the cap-pulling action. The type selection of the cylinder 72 needs to be reasonably selected according to actual application scenarios and factors such as the size and weight of the syringe. The syringe cap clamp 73 is installed at the telescopic end of the cylinder 72 and is used to clamp the syringe cap. The design of the syringe cap clamp 73 needs to consider the stability and adaptability of clamping to ensure that it can firmly clamp syringe caps of different specifications and shapes. The material of the syringe cap clamp 73 should have a certain elasticity and wear resistance to extend its service life.

[0034] The working principle of the device for realizing syringe buffering, feeding, conveying, positioning and cap-pulling: During use, the servo motor 31 drives the reducer 32 to rotate, increasing the torque and reducing the rotational speed. The output end of the reducer 32 is connected to the shaft and the driving synchronous pulley 33 to rotate. The driving synchronous pulley 33 cooperates with the driven synchronous pulley 34 to drive the synchronous belt 38 to rotate together, realizing the rotation of the syringe clamp 39 fixed to the synchronous belt 38. First, the medical staff puts 6 unpacked syringes onto the syringe clamp 39 in sequence. During the process of placing the syringes, the two syringe stop bars 63 will fix the two ends of the syringe barrel to prevent the syringe from shaking left and right and also play an auxiliary role in positioning the syringe. The syringe continues to move forward. When the diffuse reflection photoelectric switch 44 detects a syringe through the window 45, the syringe stops when it reaches the syringe positioning block 42. During the stopping process, the edge protrusions of the syringe positioning block 42 and the opposite needle-lifting pressing block 41 will reposition the syringe barrel to prevent it from moving left and right. The two shoulder rods 43 position the syringe in the forward position, so that the syringe can be fixed in all directions to ensure the normal positioning and grasping of the syringe by the manipulator. Inside the syringe photoelectric switch cover 61, there are several photoelectric reflection switches 62 that detect whether there is a syringe placed in their respective positions. When there is a syringe in the corresponding syringe clamp 39, it waits for an instruction to rotate. The shaft rotating piece 64 connected to the driving synchronous pulley 33 rotates and feeds back to the photoelectric sensor 65 to record the number of rotation turns, thereby transmitting to the PLC to real-time feedback the position of the syringe, correct the error, and better realize the positioning of the syringe. When the manipulator grabs the syringe and moves to the position of the cylinder 72, the cylinder 72 pushes the syringe cap clamp 73 to move, and then the syringe cap clamp 73 clamps the needle cap of the syringe to realize cap-pulling.

[0035] It should be noted that the specific model specifications of the servo motor 31, the speed reducer 32, the synchronous belt 38, the diffuse reflection photoelectric switch 44, the photoelectric reflection switch 62, the shaft rotating piece 64, the photoelectric sensor 65, the cylinder 72, and the syringe cap fixture 73 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in the art, so it will not be elaborated in detail.

[0036] The power supply and its principle of the servo motor 31, the speed reducer 32, the diffuse reflection photoelectric switch 44, the photoelectric reflection switch 62, the shaft rotating piece 64, the photoelectric sensor 65, the cylinder 72, and the syringe cap fixture 73 are clear to those skilled in the art, and will not be described in detail here.

[0037] For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of this application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in this application. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A device for realizing syringe buffer loading, conveying, positioning and capping, comprising a supporting base plate (1) and two supporting side plates (2) fixedly mounted on both sides of the surface of the supporting base plate (1), characterized in that: A conveying mechanism (3) is installed between the two supporting side plates (2), and a positioning mechanism (4) is installed at the top. The positioning end of the positioning mechanism (4) is horizontally aligned with the output end of the conveying mechanism (3). Two medicine bag motor shields (5) are installed on the outer walls of the two supporting side plates (2). An auxiliary positioning mechanism (6) is installed on one side of the outer wall of the two medicine bag motor shields (5), and a capping mechanism (7) is installed on the other side.

2. A device for realizing syringe buffer loading, conveying, positioning and capping according to claim 1, characterized in that: The conveying mechanism (3) comprises a servo motor (31), a reducer (32), a driving synchronous wheel (33), three driven synchronous wheels (34), three inert synchronous wheel shafts (35), two retaining springs (36), two sets of tensioning members (37), a synchronous belt (38) and a plurality of needle tube clamps (39). The servo motor (31) is fixedly mounted on the surface of the reducer (32), and the output end extends into the interior of the reducer (32) and is in transmission connection with each other. The reducer (32) is fixedly mounted on the outer wall of the supporting side plate (2), and the output end penetrates through the supporting side plate (2) and is fixedly connected to one end of the driving synchronous wheel (33). The driving synchronous wheel (33) and the three driven synchronous wheels (34) are respectively mounted on two The driving synchronous wheel (33) is connected to the supporting side plates (2) at four corners, the other end of the driving synchronous wheel (33) is axially connected to the supporting side plates (2), one end of the three inert synchronous wheel shafts (35) passes through the two supporting side plates (2) and the three driven synchronous wheels (34), the two retaining springs (36) are locked and connected to the corresponding inert synchronous wheel shafts (35), the two groups of tensioning members (37) are respectively installed on the outer walls of the two supporting side plates (2), and the tensioning ends are tightly connected to the corresponding inert synchronous wheel shafts (35), the inner wall of the synchronous belt (38) is connected to the outer walls of the driving synchronous wheel (33) and the three driven synchronous wheels (34), and a plurality of needle tube clamps (39) are installed on the outer wall of the synchronous belt (38) at equal intervals.

3. A device for realizing syringe buffer loading, conveying, positioning and capping according to claim 2, characterized in that: The tensioning member (37) comprises a tensioning seat (371), a tensioning bolt (372) and a slide groove (373); the tensioning seat (371) is bolted to the outer wall of the supporting side plate (2) and has a threaded hole on its surface; the outer wall of the tensioning bolt (372) is threadedly connected to the inner wall of the threaded hole and is supported and connected to the corresponding inert synchronous wheel shaft (35); the slide groove (373) is provided on the outer wall of the supporting side plate (2); the outer wall of the corresponding inert synchronous wheel shaft (35) is slidably connected to the inner wall of the slide groove (373).

4. A device for realizing syringe buffer loading, conveying, positioning and capping according to claim 3, characterized in that: The positioning mechanism (4) comprises a needle lifting block (41), a needle tube positioning block (42), two convex shoulder polished rods (43), a diffuse reflection photoelectric switch (44), a window (45) and a mounting seat (46). The needle lifting block (41) and the needle tube positioning block (42) are respectively mounted on the top ends of the two supporting side plates (2) and have the two convex shoulder polished rods (43) on their surfaces. The top end of the medicine bag motor shield (5) is provided with the window (45). The diffuse reflection photoelectric switch (44) is fixed on the mounting seat (46), and the detection end corresponds to the window (45). The mounting seat (46) is bolted to the outer wall of the supporting side plate (2).

5. A device for realizing syringe buffer loading, conveying, positioning and capping according to claim 4, characterized in that: The auxiliary positioning mechanism (6) comprises a needle tube photoelectric switch shield (61), a plurality of photoelectric reflection switches (62), two needle tube stop bars (63), an axle rotating piece (64) and a photoelectric sensor (65), wherein the needle tube photoelectric switch shield (61) is mounted on one side of the supporting bottom plate (1), a plurality of the photoelectric reflection switches (62) are mounted at equal intervals inside the needle tube photoelectric switch shield (61), the two needle tube stop bars (63) are mounted on the side walls of the two medicine bag motor shields (5), one end of the axle rotating piece (64) is connected to the axle connection end of the active synchronous wheel (33), and the photoelectric sensor (65) is mounted with the axle rotating piece (64) and is mounted on the outer wall of the supporting side plate (2).

6. A device for realizing syringe buffer loading, conveying, positioning and capping according to claim 5, characterized in that: The capping mechanism (7) comprises a fixing seat (71), a cylinder (72) and a needle tube cap fixture (73); the fixing seat (71) is mounted on the other side of the supporting base plate (1); the cylinder (72) is fixedly mounted on the top of the fixing seat (71), and the needle tube cap fixture (73) is mounted on the telescopic end.

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