Automatic capping device for small radiopharmaceutical penicillin bottle

Abstract

The utility model discloses an automatic cap pressing device for small radiopharmaceutical penicillin bottles. The automatic cap pressing device comprises a workbench, a first rotating shaft, a second rotating shaft and a rotating rod, wherein the first rotating shaft and the second rotating shaft are rotationally connected to the inner side of the workbench, and the rotating rod is rotationally connected to the top of the workbench. And a taking assembly is arranged at the top of the rotating rod. Under the cooperation of the reciprocating cap pressing assembly and the intermittent rotating assembly, the power assembly provides power, cap pressing operation can be automatically and continuously conducted on a plurality of penicillin bottle bodies to be subjected to cap pressing, and under the cooperation of the material taking and collecting assembly, cap pressing operation can be conducted on the penicillin bottle bodies in the period that a taking disc stops rotating. The penicillin bottle bodies subjected to capping operation are taken out of the containing groove and collected in the collecting frame, then only one to two persons are needed to fill the penicillin bottle bodies to be capped and take out the collected penicillin bottle bodies subjected to capping operation, the semi-automatic operation process can be completed, the labor cost is saved, and therefore the penicillin bottle bodies are capped in batches, and the working efficiency is improved. And the production efficiency and the economical efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of radioactive medicines, in particular to an automatic capping device for a small radioactive medicine vial. Background Art

[0002] With the widespread application of radiopharmaceuticals in the medical field, their safety and production efficiency have become the focus of the industry. As the main packaging form of radiopharmaceuticals, the capping process of vials requires strict operating specifications and efficient production processes.

[0003] Traditionally, capping of vials is done manually, which is not only inefficient but also prone to operational errors due to human factors, thus affecting the quality and safety of drugs. At the same time, in batch production, when capping a large number of vials, it often requires a lot of labor costs, making it difficult to improve efficiency and resulting in poor economic performance.

[0004] Therefore, it is an urgent need to develop a vial capping device that can meet the needs of a small radioactive drug production line while reducing equipment costs and simplifying the operating process. Summary of the invention

[0005] The utility model overcomes the shortcomings of the prior art and provides an automatic capping device for a small radioactive drug vial.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an automatic capping device for a small radioactive drug vial, comprising: a workbench, a first rotating shaft and a second rotating shaft rotatably connected to the inner side of the workbench, and a rotating rod rotatably connected to the top of the workbench; a retrieval component is arranged on the top of the rotating rod;

[0007] The retrieval assembly comprises: a retrieval plate fixed on the top of the rotating rod, a plurality of placement plates fixed on the top of the retrieval plate, and a placement groove opened on the top of the placement plate; a vial body is arranged inside the placement groove, and a capping body is arranged on the top of the vial body;

[0008] The top end of the first rotating shaft is provided with an intermittent rotating component for providing intermittent rotation to the rotating rod, the top end of the second rotating shaft is provided with a reciprocating capping component for performing a capping operation on the vial body, and the inner side of the workbench is provided with a power component for providing rotational power to the first rotating shaft and the second rotation.

[0009] In a preferred embodiment of the utility model, the intermittent rotating assembly includes: a groove wheel fixed on the side of the rotating rod, a plurality of shifting grooves provided on the surface of the groove wheel, and a turntable and a dial fixed to the top end of the first rotating shaft in sequence; a shifting post is fixed on the top of the turntable, and the side of the shifting post is slidably connected to the inner side of the shifting groove.

[0010] In a preferred embodiment of the utility model, a plurality of the placement plates are evenly distributed circumferentially on the top of the retrieval plate, a plurality of the shifting grooves are evenly opened circumferentially on the surface of the groove wheel, the number of the shifting grooves is consistent with the number of the placement plates, and the center of the placement plate is located on the central axis of the shifting grooves.

[0011] In a preferred embodiment of the utility model, the dial and the groove wheel are located in the same plane, and the diameter of the dial is the same as the diameter of the arc-shaped outer ring of the groove wheel.

[0012] In a preferred embodiment of the utility model, the reciprocating pressure cover assembly includes: a reciprocating screw fixed to the top of the second rotating shaft, a plurality of limit rods fixed to the top of the workbench, and a top cover arranged on the top of the reciprocating screw and the limit rods; a moving block is threadedly connected to the side of the reciprocating screw, the inner side of the moving block is sleeved on the side of the plurality of limit rods, an L-shaped rod is fixed to one side of the moving block, and a pressure ring is fixed to the bottom of the L-shaped rod.

[0013] In a preferred embodiment of the utility model, the top of the reciprocating screw is rotatably connected to the bottom of the top cover, the tops of a plurality of the limit rods are fixed to the bottom of the top cover, and the pressure ring is coaxially arranged with the placement plate.

[0014] In a preferred embodiment of the utility model, the power assembly includes: a first servo motor fixed to the inner bottom of the workbench, a driving bevel gear fixed to the output end of the first servo motor, and a driven bevel gear fixed to the side of the first rotating shaft located inside the workbench; the driving bevel gear is meshed with the driven bevel gear, a driving synchronous pulley is fixed to the side of the first rotating shaft located inside the workbench, a driven synchronous pulley is fixed to the side of the second rotating shaft located inside the workbench, and the sides of the driving synchronous pulley and the driven synchronous pulley are meshed with toothed belts.

[0015] In a preferred embodiment of the utility model, a material picking and collecting assembly is provided on the top of the workbench, and the material picking and collecting assembly includes: a second servo motor fixed to the top of the inner side of the workbench, a cylinder fixed to the output end of the second servo motor located at the top of the workbench, and a fixed plate fixed to the top of the cylinder; a plurality of connecting rods are fixed to the side of the fixing plate, a plurality of negative pressure suction cups are fixed to the connecting rods, a collection frame is fixed to the top of the workbench, and a collection groove is provided on the top of the collection frame.

[0016] In a preferred embodiment of the utility model, a plurality of the connecting rods are evenly distributed circumferentially on the side of the fixed plate, a plurality of the negative pressure suction cups are respectively located on the top of the placement plate and the collecting tank, the negative pressure suction cups are coaxially arranged with the placement plate, and the interior of the collecting tank is inclined.

[0017] In a preferred embodiment of the utility model, an annular groove is provided on the top of the workbench, a plurality of fixing rods are fixed to the bottom of the retrieval plate, the bottom of the fixing rods is rotatably connected to a rotating wheel, and the bottom of the rotating wheel contacts the inner bottom of the annular groove.

[0018] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0019] (1) The utility model provides a small-scale automatic capping device for radioactive drug vials, which arranges a retrieval assembly at the top of a rotating rod, places a plurality of vial bodies in a placement slot, and places a capping body on the vial body. With the cooperation of a reciprocating capping assembly and an intermittent rotating assembly, and powered by a power assembly, a plurality of vial bodies to be capped can be automatically and continuously capped. With the cooperation of a material collection assembly, the vial bodies that have completed the capping operation can be taken out of the placement slot and collected in a collection frame during the period when the retrieval plate stops rotating. Therefore, only one or two people are required to load the vial bodies to be capped and take out and collect the vial bodies that have completed the capping operation, and a semi-automatic operation process can be completed, thereby saving labor costs, thereby realizing batch capping of vial bodies and improving production efficiency and economy.

[0020] (2) In the utility model, an intermittent rotating assembly is arranged on the top of the first rotating shaft. When the first rotating shaft rotates, the groove wheel can be intermittently driven to rotate through the cooperation of the turntable, the lever and the plurality of lever grooves. At the same time, the cooperation of the turntable and the arc-shaped outer ring of the groove wheel can play a role of locking and limiting, thereby driving the rotating rod on the inner side of the groove wheel and the adjusting plate on the top of the rotating rod to rotate intermittently, so that the operations of pressing, taking and releasing the material can be carried out simultaneously during the intervals of rotation, thereby increasing the flexibility and feasibility of the operation.

[0021] (3) In the utility model, a reciprocating capping assembly is arranged on the top of the second rotating shaft. When the second rotating shaft rotates, the pressure ring can be reciprocated up and down along the length direction of the reciprocating screw through the cooperation of the reciprocating screw, the limit rod, the moving block and the L-shaped rod. When the vial body to be capped and the capping body are retrieved to the bottom of the pressure ring, the pressure ring contacts the capping body downward to complete the automatic capping operation on the vial body. During the period when the retrieval plate drives the vial body to rotate intermittently again, the pressure ring moves upward to complete an automatic capping cycle, thereby improving the degree of automation of the device and improving practicality.

[0022] (4) In the utility model, a material collection assembly is arranged on the top of the workbench. When the vial body is stopped after capping and retrieval, the negative pressure suction cup can be moved downward to contact the top of the capping body through the cooperation of the cylinder, the fixing plate, the connecting rod and the negative pressure suction cup, and the vial body can be lifted upward out of the placement slot. The vial body that has completed capping can be retrieved to the top of the collection frame through the cooperation of the second servo motor. After the adsorption is cancelled, the vial body can slide to one side in the collection slot to wait for material collection, thereby completing the material collection and collection operations during capping, further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0024] Figure 1 It is a three-dimensional structural diagram of a preferred embodiment of the utility model;

[0025] Figure 2 It is a structural diagram of the connection between the lever post and the lever groove of the preferred embodiment of the utility model;

[0026] Figure 3 It is a front view structural diagram of a preferred embodiment of the utility model;

[0027] Figure 4 It is a structural diagram of a power assembly of a preferred embodiment of the utility model;

[0028] In the figure: 1. workbench; 11. first rotating shaft; 12. second rotating shaft; 13. rotating rod; 2. retrieving plate; 21. placing plate; 22. placing groove; 23. vial body; 24. capping body; 3. groove wheel; 31. shifting groove; 32. rotating plate; 33. dial; 34. shifting column; 4. reciprocating screw rod; 41. limiting rod; 42. top cover; 43. moving block; 44. L-shaped rod; 45. pressing ring; 5. first servo motor; 51. active bevel gear; 52. driven bevel gear; 53. active synchronous pulley; 54. driven synchronous pulley; 55. toothed belt; 6. second servo motor; 61. cylinder; 62. fixing plate; 63. connecting rod; 64. negative pressure suction cup; 65. collecting frame; 66. collecting groove; 7. annular groove; 71. fixing rod; 72. rotating wheel. DETAILED DESCRIPTION

[0029] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0030] like Figure 1 and Figure 2 As shown, an automatic capping device for small radioactive drug vials includes: a workbench 1, a first rotating shaft 11 and a second rotating shaft 12 rotatably connected to the inner side of the workbench 1, and a rotating rod 13 rotatably connected to the top of the workbench 1; a retrieval component is arranged on the top of the rotating rod 13.

[0031] The retrieving assembly includes: a retrieving tray 2 fixed on the top of the rotating rod 13, a plurality of placement plates 21 fixed on the top of the retrieving tray 2, and a placement groove 22 opened on the top of the placement plate 21; a vial body 23 is arranged on the inner side of the placement groove 22, and a pressure cover body 24 is arranged on the top of the vial body 23.

[0032] The top end of the first rotating shaft 11 is provided with an intermittent rotating assembly for providing intermittent rotation to the rotating rod 13, the top end of the second rotating shaft 12 is provided with a reciprocating capping assembly for performing a capping operation on the vial body 23, and the inner side of the workbench 1 is provided with a power assembly for providing rotational power to the first rotating shaft 11 and the second rotating shaft.

[0033] It should be noted that a plurality of placement plates 21 are evenly distributed on the top of the retrieval tray 2 in the circumferential direction; a plurality of vial bodies 23 are placed in the placement grooves 22, and the capping bodies 24 are placed on the vial bodies 23. The power is provided by a power component, and the retrieval tray 2 is intermittently rotated through the cooperation of the reciprocating capping component and the intermittent rotating component, so that the capping operation can be automatically and continuously performed on a plurality of vial bodies 23 to be capped. Therefore, only one or two people are needed to load the vial bodies 23 to be capped and take out and collect the capped vial bodies 23, so as to complete the semi-automatic operation process, save labor costs, thereby realizing batch capping of the vial bodies 23 and improving production efficiency and economy.

[0034] The intermittent rotating assembly includes: a groove wheel 3 fixed to the side of the rotating rod 13, a plurality of shifting grooves 31 opened on the surface of the groove wheel 3, and a turntable 32 and a dial 33 fixed to the top of the first rotating shaft 11 in sequence; a shifting post 34 is fixed to the top of the turntable 32, and the side of the shifting post 34 is slidably connected to the inner side of the shifting groove 31.

[0035] It should be noted that a plurality of shifting grooves 31 are uniformly arranged on the surface of the groove wheel 3 in the circumferential direction, the number of the shifting grooves 31 is the same as the number of the placement plate 21, the center of the placement plate 21 is located on the central axis of the shifting groove 31; the dial 33 and the groove wheel 3 are located in the same plane, and the diameter of the dial 33 is the same as the diameter of the arc-shaped outer ring of the groove wheel 3; when the first rotating shaft 11 rotates, it can drive the turntable 32 and the dial 33 to rotate, and when the turntable 32 rotates, it can drive the shifting post 34 on the top of the turntable 32 to rotate synchronously, and when the shifting post 34 enters the shifting groove When the lever 34 is disengaged from the slot 31, the side surface of the dial 33 will fit with the arc-shaped outer ring of the slotted wheel 3, playing a role of locking and limiting, so that the slotted wheel 3 stops rotating, and the intermittent rotation of the slotted wheel 3 is realized, thereby driving the rotating rod 13 inside the slotted wheel 3 and the adjusting disk 2 at the top of the rotating rod 13 to rotate intermittently, so that the operations of pressing, taking and releasing the material can be carried out simultaneously during the rotation interval, thereby increasing the flexibility and feasibility of the operation.

[0036] An annular groove 7 is provided on the top of the workbench 1 , and a plurality of fixing rods 71 ​​are fixed to the bottom of the retrieval plate 2 . A rotating wheel 72 is rotatably connected to the bottom of the fixing rod 71 , and the bottom of the rotating wheel 72 contacts the inner bottom of the annular groove 7 .

[0037] It should be noted that the annular groove 7 is coaxially arranged with the calling plate 2, and a plurality of fixing rods 71 ​​are evenly distributed circumferentially at the bottom of the calling plate 2; when the calling plate 2 rotates, the rotating wheel 72 connected to the inner side of the bottom of the fixing rod 71 will rotate along the inner side of the annular groove 7, and at the same time, the pressure ring 45 can play a role of support and prevention of deviation when pressing the pressure cover body 24 downward.

[0038] like Figure 3As shown, the reciprocating pressure cover assembly includes: a reciprocating screw 4 fixed on the top of the second rotating shaft 12, a plurality of limit rods 41 fixed on the top of the workbench 1, and a top cover 42 arranged on the top of the reciprocating screw 4 and the limit rods 41; a moving block 43 is threadedly connected to the side of the reciprocating screw 4, the inner side of the moving block 43 is sleeved on the side of the plurality of limit rods 41, an L-shaped rod 44 is fixed to one side of the moving block 43, and a pressure ring 45 is fixed to the bottom of the L-shaped rod 44.

[0039] When the second rotating shaft 12 rotates, the reciprocating screw 4 at the top will rotate synchronously, and the moving block 43 threadedly connected to the side of the reciprocating screw 4 and the inner side of the moving block 43 is sleeved on the side of the limiting rod 41, the moving block 43 will reciprocate up and down along the length direction of the reciprocating screw 4, so that the pressing ring 45 at the bottom of the L-shaped rod 44 on one side of the moving block 43 moves synchronously. When the vial body 23 to be capped and the capping body 24 are retrieved to the bottom of the pressing ring 45, the pressing ring 45 contacts the capping body 24 downward to complete the automatic capping operation of the vial body 23. During the period when the retrieval plate 2 drives the vial body 23 to rotate intermittently again, the pressing ring 45 moves upward to complete an automatic capping cycle, thereby improving the automation degree of the device and improving practicality.

[0040] like Figure 1 and Figure 4 As shown, the power assembly includes: a first servo motor 5 fixed to the inner bottom of the workbench 1, a driving bevel gear 51 fixed to the output end of the first servo motor 5, and a driven bevel gear 52 fixed to the first rotating shaft 11 located on the inner side of the workbench 1; the driving bevel gear 51 is meshed with the driven bevel gear 52, a driving synchronous pulley 53 is fixed to the side of the first rotating shaft 11 located inside the workbench 1, a driven synchronous pulley 54 is fixed to the side of the second rotating shaft 12 located inside the workbench 1, and a toothed belt 55 is meshed on the sides of the driving synchronous pulley 53 and the driven synchronous pulley 54.

[0041] It should be noted that by starting the first servo motor 5, the active bevel gear 51 is driven to rotate, and by engaging the driven bevel gear 52, the first rotating shaft 11 can be driven to rotate, so as to provide rotational power for the first rotating shaft 11. While the first rotating shaft 11 is rotating, the active synchronous pulley 53 on the side will rotate synchronously. Through the engagement of the toothed belt 55 with the active synchronous pulley 53 and the driven synchronous pulley 54, when the active synchronous pulley 53 rotates, the driven synchronous pulley 54 and the second rotating shaft 12 can be driven to rotate, thereby providing rotational power for the second rotating shaft 12. By providing power to the first rotating shaft 11 and the second rotating shaft 12 at the same time by the first servo motor 5, energy consumption can be saved and economic benefits can be improved.

[0042] A material collecting assembly is provided on the top of the workbench 1, and the material collecting assembly includes: a second servo motor 6 fixed to the inner top of the workbench 1, a cylinder 61 fixed to the output end of the second servo motor 6 located at the top of the workbench 1, and a fixed plate 62 fixed to the top of the cylinder 61; a plurality of connecting rods 63 are fixed to the side of the fixing plate 62, a plurality of negative pressure suction cups 64 are fixed on the plurality of connecting rods 63, a collecting frame 65 is fixed to the top of the workbench 1, and a collecting groove 66 is provided on the top of the collecting frame 65.

[0043] It should be noted that a plurality of connecting rods 63 are evenly distributed on the side of the fixing plate 62 in the circumferential direction, a plurality of negative pressure suction cups 64 are respectively located on the top of the placing plate 21 and the collecting tank 66, the negative pressure suction cups 64 are coaxially arranged with the placing plate 21, and the inside of the collecting tank 66 is inclined; a plurality of negative pressure suction cups 64 are externally connected to a negative pressure device for improving the negative pressure adsorption force, and during the period when the rotation is stopped after the capping of the vial body 23 is completed and the vial body 23 is retrieved, the cylinder 61 is started to contract, and the fixing plate 62 and a plurality of connecting rods 63 are driven downward, so that the connecting rods 63 are The negative pressure suction cup 64 moves downward to contact the top of the capping body 24. Through the cooperation of the negative pressure equipment, the negative pressure suction cup 64 adsorbs the capping body 24. The cylinder 61 is started to push the negative pressure suction cup 64 to move upward, and the syringe bottle body 23 is separated from the inside of the placement groove 22. The second servo motor 6 is started to move the syringe bottle body 23 that has been adsorbed and capped to the top of the collection frame 65. After the adsorption is cancelled, it can slide to one side in the collection groove 66 to wait for material collection, thereby completing the material collection and collection operations during the capping period, further improving the work efficiency.

[0044] When the utility model is used, a plurality of vial bodies 23 are placed in the placement groove 22, and the pressure cap body 24 is placed on the vial body 23, and a plurality of negative pressure suction cups 64 are externally connected to a negative pressure device for improving the negative pressure adsorption force, and the first servo motor 5 is started to drive the active bevel gear 51 to rotate, and the first rotating shaft 11 can be driven to rotate by meshing with the driven bevel gear 52. When the first rotating shaft 11 rotates, the active synchronous pulley 53 on the side will rotate synchronously, and the toothed belt 55 is meshed with the active synchronous pulley 53 and the driven synchronous pulley 54. When the active synchronous pulley 53 rotates, the driven synchronous pulley 54 and the second rotating shaft 12 can be driven to rotate. When the first rotating shaft 11 rotates, the turntable 32 and the dial 33 can be driven to rotate. When the turntable 32 rotates, the lever 34 on the top of the turntable 32 can be driven to rotate synchronously. When the lever 34 enters the slot 31 and slides, the groove wheel 3 can be driven to rotate. When the lever 34 is out of the slot 31, the side of the dial 33 will fit with the arc-shaped outer ring of the groove wheel 3, playing a role of locking and limiting, so that the groove wheel 3 stops rotating, and the intermittent rotation of the groove wheel 3 is achieved, thereby driving the rotating rod 13 inside the groove wheel 3 and the retrieval disk 2 at the top of the rotating rod 13 to rotate intermittently. When the second rotating shaft 12 rotates, the reciprocating screw 4 at the top will rotate synchronously. The moving block 43 connected by thread on the side of the reciprocating screw 4 and the inner side of the moving block 43 is sleeved on the side of the limiting rod 41 under the limiting action, the moving block 43 will move along the reciprocating The screw rod 4 reciprocates up and down in the length direction, so that the pressure ring 45 at the bottom of the L-shaped rod 44 on one side of the moving block 43 moves synchronously. When the vial body 23 to be capped and the capping body 24 are retrieved to the bottom of the pressure ring 45, the pressure ring 45 contacts the capping body 24 downward to complete the automatic capping operation of the vial body 23. During the period when the retrieval disk 2 drives the vial body 23 to rotate intermittently again, the pressure ring 45 moves upward to complete an automatic capping cycle. When the retrieval disk 2 rotates, the rotating wheel 72 connected to the inner side of the bottom of the fixed rod 71 rotates along the inner side of the annular groove 7. At the same time, when the pressure ring 45 presses down the capping body 24, it can play a role of supporting and preventing deviation. After the vial body 23 is capped and retrieved, it stops rotating. During the operation, the start cylinder 61 contracts, driving the fixed plate 62 and a plurality of connecting rods 63 to move downward, so that the negative pressure suction cup 64 on the connecting rod 63 moves downward to contact the top of the capping body 24. Through the cooperation of the negative pressure device, the negative pressure suction cup 64 adsorbs the capping body 24. The start cylinder 61 pushes the negative pressure suction cup 64 to move upward, and the vial body 23 is separated from the inside of the placement slot 22. The second servo motor 6 is started to retrieve the vial body 23 that has been adsorbed and capped to the top of the collection frame 65. After the adsorption is cancelled, it can slide to one side in the collection slot 66 to wait for material collection. Only one or two people are needed to load the vial body 23 to be capped and take out the vial body 23 that has been collected and capped, so as to complete the semi-automatic operation process, saving labor costs.Thus, the capping of the vial bodies 23 can be achieved in batches, thereby improving production efficiency and economy.

[0045] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An automatic capping device for small radiopharmaceutical vials, characterized in that: include: A workbench (1), a first rotating shaft (11) and a second rotating shaft (12) rotatably connected to the inner side of the workbench (1), and a rotating rod (13) rotatably connected to the top of the workbench (1); a retrieval component is provided on the top of the rotating rod (13); The retrieval assembly comprises: a retrieval tray (2) fixed on the top of the rotating rod (13), a plurality of placement plates (21) fixed on the top of the retrieval tray (2), and a placement groove (22) provided on the top of the placement plate (21); a vial body (23) is arranged inside the placement groove (22), and a capping body (24) is arranged on the top of the vial body (23); The top end of the first rotating shaft (11) is provided with an intermittent rotating assembly for providing intermittent rotation to the rotating rod (13), the top end of the second rotating shaft (12) is provided with a reciprocating capping assembly for performing a capping operation on the vial body (23), and the inner side of the workbench (1) is provided with a power assembly for providing rotational power to the first rotating shaft (11) and the second rotating shaft.

2. The automatic capping device for small radiopharmaceutical vials according to claim 1, characterized in that: The intermittent rotating assembly comprises: a groove wheel (3) fixed to the side of the rotating rod (13), a plurality of shifting grooves (31) provided on the surface of the groove wheel (3), and a rotating disk (32) and a shifting disk (33) fixed to the top of the first rotating shaft (11) in sequence; a shifting post (34) is fixed to the top of the rotating disk (32), and the side of the shifting post (34) is slidably connected to the inner side of the shifting groove (31).

3. The automatic capping device for small radiopharmaceutical vials according to claim 2, characterized in that: A plurality of the placement plates (21) are evenly distributed on the top of the retrieval plate (2) in the circumferential direction, and a plurality of the shifting grooves (31) are evenly opened on the surface of the groove wheel (3) in the circumferential direction. The number of the shifting grooves (31) is the same as that of the placement plates (21), and the center of the placement plates (21) is located on the central axis of the shifting grooves (31).

4. The automatic capping device for small radiopharmaceutical vials according to claim 2, characterized in that: The dial (33) and the groove wheel (3) are located in the same plane, and the diameter of the dial (33) is the same as the diameter of the arc-shaped outer ring of the groove wheel (3).

5. The automatic capping device for small radiopharmaceutical vials according to claim 1, characterized in that: The reciprocating pressure cover assembly comprises: a reciprocating screw (4) fixed on the top of the second rotating shaft (12), a plurality of limiting rods (41) fixed on the top of the workbench (1), and a top cover (42) arranged on the top of the reciprocating screw (4) and the limiting rods (41); a moving block (43) is threadedly connected to the side of the reciprocating screw (4), the inner side of the moving block (43) is sleeved on the side of the plurality of limiting rods (41), an L-shaped rod (44) is fixed on one side of the moving block (43), and a pressure ring (45) is fixed on the bottom of the L-shaped rod (44).

6. The automatic capping device for small radiopharmaceutical vials according to claim 5, characterized in that: The top of the reciprocating screw rod (4) is rotatably connected to the bottom of the top cover (42), the tops of a plurality of limit rods (41) are fixed to the bottom of the top cover (42), and the pressure ring (45) is coaxially arranged with the placement plate (21).

7. The automatic capping device for small radiopharmaceutical vials according to claim 1, characterized in that: The power assembly comprises: a first servo motor (5) fixed to the inner bottom of the workbench (1), a driving bevel gear (51) fixed to the output end of the first servo motor (5), and a driven bevel gear (52) fixed to the side of the first rotating shaft (11) located inside the workbench (1); the driving bevel gear (51) is meshed with the driven bevel gear (52), a driving synchronous pulley (53) is fixed to the side of the first rotating shaft (11) located inside the workbench (1), a driven synchronous pulley (54) is fixed to the side of the second rotating shaft (12) located inside the workbench (1), and the sides of the driving synchronous pulley (53) and the driven synchronous pulley (54) are meshed with toothed belts (55).

8. The automatic capping device for small radiopharmaceutical vials according to claim 1, characterized in that: A material collecting assembly is arranged on the top of the workbench (1), and the material collecting assembly comprises: a second servo motor (6) fixed to the top of the inner side of the workbench (1), a cylinder (61) fixed to the output end of the second servo motor (6) located at the top of the workbench (1), and a fixing plate (62) fixed to the top of the cylinder (61); a plurality of connecting rods (63) are fixed to the side of the fixing plate (62), and a plurality of negative pressure suction cups (64) are fixed to the connecting rods (63); a collecting frame (65) is fixed to the top of the workbench (1), and a collecting groove (66) is provided on the top of the collecting frame (65).

9. The automatic capping device for small radiopharmaceutical vials according to claim 8, characterized in that: A plurality of the connecting rods (63) are evenly distributed circumferentially on the side of the fixing plate (62), and a plurality of the negative pressure suction cups (64) are respectively located on the top of the placement plate (21) and the collecting groove (66). The negative pressure suction cups (64) are coaxially arranged with the placement plate (21), and the interior of the collecting groove (66) is inclined.

10. The automatic capping device for small radiopharmaceutical vials according to claim 1, characterized in that: The top of the workbench (1) is provided with an annular groove (7), the bottom of the retrieval plate (2) is fixed with a plurality of fixing rods (71), the bottom of the fixing rods (71) is rotatably connected with a rotating wheel (72), and the bottom of the rotating wheel (72) contacts the inner bottom of the annular groove (7).

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