CN112499548B

CN112499548B - Virus sampling pipe closing cap device

Info

Publication number: CN112499548B
Application number: CN202011517439.3A
Authority: CN
Inventors: 高洪才; 高义夫; 高英杰
Original assignee: Cangzhou Yongkang Medical Devices Co ltd
Current assignee: Cangzhou Yongkang Medical Devices Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2022-01-11
Anticipated expiration: 2040-12-21
Also published as: CN112499548A

Abstract

The invention relates to the technical field of capping devices, in particular to a capping device for a virus sampling tube; the virus sampling tube and the cover body are screwed and assembled by using machinery instead of manpower, so that the manual operation amount is reduced, time and labor are saved, and the production efficiency is higher; the workbench, the revolving stage, step motor, first placement mechanism, second placement mechanism, the mounting bracket and the mechanism of screwing, the mechanism of screwing includes first pneumatic cylinder, the crane, a pedestal, a servo motor, the driving gear, four groups of driven gear and four group's pivots, the equal fixed mounting in bottom of four group's pivots has the sleeve, first placement mechanism and second placement mechanism are all including placing the platform, four groups of fixture, the portal frame, the second pneumatic cylinder, clamp plate and four groups of gyro wheels, four groups of fixture all include the inclined plane slider, first telescopic link and first semicircular cardboard, the extension end of first telescopic link is provided with first spring, all be provided with the semicircular cardboard of second corresponding with first semicircular cardboard in the first through-hole of four groups.

Description

Virus sampling pipe closing cap device

Technical Field

The invention relates to the technical field of capping devices, in particular to a capping device for a virus sampling tube.

Background

As is well known, a virus sampling tube capping device is a device for screwing and assembling a virus sampling tube and a cap body; the equipment of screwing is generally carried out through the manual work after current virus sampling pipe and lid production finish, and manual operation wastes time and energy, and efficiency is lower, is difficult to satisfy the production demand, has certain use limitation.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the virus sampling tube capping device which uses machinery to replace manual work to screw and assemble the virus sampling tube and the cap body, reduces the manual operation amount, saves more time and labor and has higher production efficiency.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: comprises a workbench, a rotary table, a stepping motor, a first placing mechanism, a second placing mechanism, a mounting frame and a screwing mechanism, wherein the rotary table is rotatably arranged at the top end of the workbench, the stepping motor is fixedly arranged at the bottom of the workbench, the output end of the stepping motor is in transmission connection with the rotary table, the first placing mechanism and the second placing mechanism are respectively positioned at the left and right parts of the top end of the rotary table, the mounting frame is fixedly arranged at the left part of the top end of the workbench, the screwing mechanism is arranged on the mounting frame, the screwing mechanism comprises a first hydraulic cylinder, a lifting frame, a base, a first servo motor, a driving gear, four groups of driven gears and four groups of rotating shafts, the output end of the first hydraulic cylinder is fixedly connected with the top end of the lifting frame, the base is fixedly arranged on the lifting frame, and the first servo motor is fixedly arranged on the base, the driving gear and four driven gears can be rotatably arranged on the lifting frame, the output end of the first servo motor is in transmission connection with the driving gear, the four driven gears are all meshed with the driving gear, the four rotating shafts can be rotatably arranged at the bottom of the lifting frame, the bottom ends of the four driven gears are respectively fixedly connected with the top ends of the four rotating shafts, sleeves are respectively fixedly arranged at the bottom ends of the four rotating shafts, the first placing mechanism and the second placing mechanism respectively comprise a placing table, four clamping mechanisms, a portal frame, a second hydraulic cylinder, a pressing plate and four rolling wheels, four first through holes and four placing grooves are arranged on the placing table, the four clamping mechanisms are respectively arranged in the four placing grooves, the portal frame is fixedly arranged at the top end of the placing table, and the second hydraulic cylinder is fixedly arranged on the portal frame, the pressing plate is fixedly arranged at the output end of the second hydraulic cylinder, the four groups of rollers are rotatably arranged at the bottom of the pressing plate and are arranged corresponding to the four groups of clamping mechanisms, each clamping mechanism comprises an inclined plane sliding block, a first telescopic rod and a first semicircular clamping plate, the inclined plane sliding blocks are slidably arranged in the placing groove, the fixed end of the first telescopic rod is fixedly connected with one side, away from the center of the placing table, of the inclined plane sliding block, the first semicircular clamping plate is fixedly arranged at the extending end of the first telescopic rod, the extending end of the first telescopic rod is provided with a first spring, the placing groove is fixedly provided with a fixed plate, a circular hole is formed in the fixed plate, the first telescopic rod penetrates through the circular hole, the fixed end of the first telescopic rod is sleeved with a second spring, and the second spring is positioned between the inclined plane sliding block and the fixed plate, and second semicircular clamping plates corresponding to the first semicircular clamping plates are arranged in the four groups of first through holes.

Preferably, still include vibration supporting mechanism, vibration supporting mechanism includes metal frame, vibration board, four groups of second telescopic links, supporting frame and vibrating motor, supporting frame fixed mounting in the bottom of workstation, four groups of second telescopic links fixed mounting in on the supporting frame, vibration board fixed mounting in the extension end of second telescopic link, metal frame fixed mounting in on the vibration board, the workstation left part be provided with four groups of second through-holes that four groups of first through-holes correspond the setting on the first placement mechanism, the metal frame is located four groups of second through-holes under, vibrating motor fixed mounting in the bottom of vibration board, the extension end of four groups of second telescopic links all overlaps and is equipped with the third spring.

Preferably, the automatic feeding device further comprises a material guide frame, two groups of first conveying rollers, a first conveying belt, two groups of second conveying rollers, a second conveying belt and a second servo motor, wherein the material guide frame is fixedly installed at the front part of the workbench, the two groups of first conveying rollers are respectively and rotatably arranged on the front side and the rear side of the right part of the material guide frame, the two groups of second conveying rollers are respectively and rotatably arranged on the front side and the rear side of the left part of the material guide frame, the first conveying rollers are sleeved with the first conveying rollers, the second conveying rollers are sleeved with the second conveying rollers, the second servo motor is fixedly installed on the material guide frame, the output end of the second servo motor is in transmission connection with one group of the first conveying rollers, an expanding ring is arranged at the front part of the metal frame, and the expanding ring is located between the first conveying belt and the second conveying belt.

Preferably, the first semicircular clamping plate and the second semicircular clamping plate are made of rubber materials.

Preferably, the top end face of the metal frame and the horizontal plane form an included angle of 15 degrees in an inclined mode.

Preferably, the lifting frame further comprises two groups of first guide rods and two groups of second guide rods, the two groups of first guide rods are fixedly installed on the mounting frame, the extension ends of the two groups of first guide rods are fixedly connected with the top end of the lifting frame, the two groups of second guide rods are fixedly installed on the portal frame, and the extension ends of the two groups of second guide rods are fixedly connected with the top end of the pressing plate.

(III) advantageous effects

Compared with the prior art, the invention provides a virus sampling tube capping device, which has the following beneficial effects: the virus sampling tube capping device comprises a second hydraulic cylinder, a second clamping mechanism, a pressing plate, a first telescopic rod, a second hydraulic cylinder, a third hydraulic cylinder, a fourth hydraulic cylinder, a fifth hydraulic cylinder, a sixth hydraulic cylinder, a fifth hydraulic cylinder, a sixth hydraulic cylinder, a fifth hydraulic cylinder, a fourth hydraulic cylinder, a fifth hydraulic cylinder, a fourth hydraulic cylinder, a fifth hydraulic cylinder, a fourth hydraulic cylinder, a fifth hydraulic cylinder, a fourth hydraulic cylinder, a fifth hydraulic cylinder, a fourth, the crane removes downwards, the lid enters into to the sleeve in, start first servo motor, first servo motor drives the driving gear and rotates, after four driven gear transmission of group, four synchronous rotations of group's pivot, the sleeve is screwed the lid and closely covers with virus sampling pipe, can carry out the material loading of next group virus sampling pipe in to first placement machine simultaneously, await the opportune moment, replace artifical equipment of screwing of virus sampling pipe and lid with machinery, reduce the manual operation volume, time saving and labor saving more, the production efficiency is higher.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view taken at A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1;

FIG. 5 is a bottom perspective view of the present invention;

FIG. 6 is an enlarged partial view of FIG. 2 at B in accordance with the present invention;

FIG. 7 is an enlarged view of a portion of the structure of FIG. 3 at C in accordance with the present invention;

in the drawings, the reference numbers: 1. a work table; 2. a turntable; 3. a stepping motor; 4. a mounting frame; 5. a first hydraulic cylinder; 6. a lifting frame; 7. a base; 8. a first servo motor; 9. a driving gear; 10. a driven gear; 11. a rotating shaft; 12. a sleeve; 13. a placing table; 14. a gantry; 15. a second hydraulic cylinder; 16. pressing a plate; 17. a roller; 18. a first through hole; 19. a bevel slider; 20. a first telescopic rod; 21. a first semicircular clamping plate; 22. a first spring; 23. a fixing plate; 24. a second spring; 25. a second semicircular clamping plate; 26. a metal frame; 27. a vibrating plate; 28. a second telescopic rod; 29. a receiving frame; 30. a vibration motor; 31. a second through hole; 32. a third spring; 33. a material guide frame; 34. a first conveying roller; 35. a first conveyor belt; 36. a second conveying roller; 37. a second conveyor belt; 38. a second servo motor; 39. a first guide bar; 40. a second guide bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the virus sampling tube capping device of the present invention comprises a workbench 1, a turntable 2, a stepping motor 3, a first placing mechanism, a second placing mechanism, a mounting rack 4 and a screwing mechanism, wherein the turntable 2 is rotatably disposed at the top end of the workbench 1, the stepping motor 3 is fixedly disposed at the bottom of the workbench 1, the output end of the stepping motor 3 is in transmission connection with the turntable 2, the first placing mechanism and the second placing mechanism are respectively located at the left and right parts of the top end of the turntable 2, the mounting rack 4 is fixedly mounted at the left part of the top end of the workbench 1, the screwing mechanism is disposed on the mounting rack 4, the screwing mechanism comprises a first hydraulic cylinder 5, a lifting rack 6, a base 7, a first servo motor 8, a driving gear 9, four sets of driven gears 10 and four sets of rotating shafts 11, the output end of the first hydraulic cylinder 5 is fixedly connected with the top end of the lifting rack 6, the base 7 is fixedly mounted on the lifting rack 6, the first servo motor 8 is fixedly arranged on the base 7, the driving gear 9 and four groups of driven gears 10 can be rotatably arranged on the lifting frame 6, the output end of the first servo motor 8 is in transmission connection with the driving gear 9, the four groups of driven gears 10 are all engaged with the driving gear 9, the four groups of rotating shafts 11 are rotatably arranged at the bottom of the lifting frame 6, the bottom ends of the four groups of driven gears 10 are respectively fixedly connected with the top ends of the four groups of rotating shafts 11, the bottom ends of the four groups of rotating shafts 11 are respectively and fixedly provided with sleeves 12, the first placing mechanism and the second placing mechanism respectively comprise a placing table 13, four groups of clamping mechanisms, a portal frame 14, a second hydraulic cylinder 15, a pressure plate 16 and four groups of rollers 17, the placing table 13 is provided with four groups of first through holes 18 and four groups of placing grooves, the four groups of clamping mechanisms are respectively arranged in the four groups of placing grooves, the portal frame 14 is fixedly arranged at the top end of the placing table 13, the second hydraulic cylinder 15 is fixedly arranged on the portal frame 14, the clamp plate 16 is fixedly arranged at the output end of the second hydraulic cylinder 15, four groups of idler wheels 17 are rotatably arranged at the bottom of the clamp plate 16, four groups of idler wheels 17 are correspondingly arranged with four groups of clamping mechanisms, each group of clamping mechanisms comprises an inclined plane slider 19, a first telescopic rod 20 and a first semicircular clamping plate 21, the inclined plane slider 19 can be slidably arranged in the placing groove, the fixed end of the first telescopic rod 20 is fixedly connected with one side, away from the center of the placing table 13, of the inclined plane slider 19, the first semicircular clamping plate 21 is fixedly arranged at the extending end of the first telescopic rod 20, the extending end of the first telescopic rod 20 is provided with a first spring 22, a fixing plate 23 is fixedly arranged in the placing groove, a circular hole is formed in the fixing plate 23, the first telescopic rod 20 penetrates through the circular hole, the fixed end of the first telescopic rod 20 is sleeved with a second spring 24, the second spring 24 at the top end is positioned between the inclined plane slider 19 and the fixing plate 23, a second semicircular clamping plate 25 corresponding to the first semicircular clamping plate 21 is arranged in each group of the first through hole 18 (ii) a The second hydraulic cylinder 15 on the second placing mechanism is started to enable the second hydraulic cylinder 15 to be in a contraction state, the virus sampling pipe is placed between a first semicircular clamping plate 21 and a second semicircular clamping plate 25 on the four groups of clamping mechanisms, the second hydraulic cylinder 15 on the second placing mechanism is started to enable the output end of the second hydraulic cylinder 15 to extend, the pressing plate 16 drives the four groups of rollers 17 to move downwards and respectively contact with inclined plane sliding blocks 19 on the four groups of clamping mechanisms, under the pressing action of the rollers 17, the inclined plane sliding blocks 19 move along the placing groove, so that the first telescopic rod 20 moves towards the position of the second semicircular clamping plate 25 to fix the virus sampling pipe, the cover body covers the virus sampling pipe, the stepping motor 3 is started, the stepping motor 3 drives the rotary table 2 to rotate to 180 degrees and then stops, the second placing mechanism is located below the mechanism, the first screwing hydraulic cylinder 5 is started, the output end of the first hydraulic cylinder 5 extends, crane 6 downstream, the lid enters into sleeve 12 in, start first servo motor 8, first servo motor 8 drives driving gear 9 and rotates, after four group's driven gear 10 transmissions, 11 synchronous rotations in four group's pivots, sleeve 12 screws the lid and closely covers with virus sampling pipe, can carry out the material loading of next group virus sampling pipe in to first placing the mechanism simultaneously, await the opportune moment, replace artifical equipment of screwing virus sampling pipe and lid with machinery, reduce the manual operation volume, time saving and labor saving more, the production efficiency is higher.

The invention relates to a virus sampling tube capping device, which further comprises a vibration bearing mechanism, wherein the vibration bearing mechanism comprises a metal frame 26, a vibration plate 27, four groups of second telescopic rods 28, a bearing frame 29 and a vibration motor 30, the bearing frame 29 is fixedly arranged at the bottom of a workbench 1, the four groups of second telescopic rods 28 are fixedly arranged on the bearing frame 29, the vibration plate 27 is fixedly arranged at the extending end of the second telescopic rods 28, the metal frame 26 is fixedly arranged on the vibration plate 27, the left part of the workbench 1 is provided with four groups of second through holes 31 which correspond to the four groups of first through holes 18 on a first placing mechanism, the metal frame 26 is positioned right below the four groups of second through holes 31, the vibration motor 30 is fixedly arranged at the bottom of the vibration plate 27, and the extending ends of the four groups of second telescopic rods 28 are all sleeved with third springs 32; after the virus sampling tube is covered with the cover body, a second hydraulic cylinder 15 on the second placing mechanism is started, the output end of the second hydraulic cylinder 15 is shortened, the inclined plane slide block 19 moves towards the center of the placing table 13 along the placing groove under the action of a second spring 24, so that the first semicircular clamping plate 21 and the second semicircular clamping plate 25 fall off to clamp the virus sampling tube, the virus sampling tube falls onto the metal frame 26 through the first through hole 18 and the second through hole 31, the vibration motor 30 is started, the vibration motor 30 drives the vibration plate 27 to vibrate, under the action of the second telescopic rod 28 and the third spring 32, the metal frame 26 synchronously vibrates, the virus sampling tube falling onto the metal frame 26 sequentially moves forwards along the metal frame 26, the virus sampling tube can be collected and adjusted in sequence, and the virus sampling tube can be conveniently connected with next processing equipment; the automatic feeding device comprises a guide frame 33, two groups of first conveying rollers 34, a first conveying belt 35, two groups of second conveying rollers 36, a second conveying belt 37 and a second servo motor 38, wherein the guide frame 33 is fixedly arranged at the front part of the workbench 1, the two groups of first conveying rollers 34 are respectively and rotatably arranged at the front side and the rear side of the right part of the guide frame 33, the two groups of second conveying rollers 36 are respectively and rotatably arranged at the front side and the rear side of the left part of the guide frame 33, the first conveying rollers 35 are sleeved on the two groups of first conveying rollers 34, the second conveying rollers 37 are sleeved on the two groups of second conveying rollers 36, the second servo motor 38 is fixedly arranged on the guide frame 33, the output end of the second servo motor 38 is in transmission connection with one group of the first conveying rollers 34, the front part of the metal frame 26 is provided with an expanding ring, and the expanding ring is positioned between the first conveying rollers 35 and the second conveying rollers 37; the virus sampling pipes falling from the forefront part of the metal frame 26 fall between the first conveyor belt 35 and the second conveyor belt 37, the second servo motor 38 is started, the second servo motor 38 drives the first conveyor roller 34 to rotate, so that the first conveyor belt 35 rotates, the virus sampling pipes are conveyed through the first conveyor belt 35, so that the virus sampling pipes are sequentially conveyed to the next processing procedure, manual sorting and conveying of the virus sampling pipes are not needed, the manual operation amount is reduced, and the production efficiency is improved; the first semicircular clamping plate 21 and the second semicircular clamping plate 25 are made of rubber; the friction coefficient between the first semicircular clamping plate 21 and the virus sampling tube and between the second semicircular clamping plate 25 and the virus sampling tube can be increased through the arrangement of the rubber materials of the first semicircular clamping plate 21 and the second semicircular clamping plate 25, so that the clamping stability is improved; the top end surface of the metal frame 26 and the horizontal surface form an included angle of 15 degrees; the top end surface of the metal frame 26 and the horizontal plane form an included angle of 15 degrees, so that the virus sampling pipes can be sorted and conveyed in the vibration process, and the condition that the virus sampling pipes are gathered and stopped on the metal frame 26 is effectively reduced; the lifting frame is characterized by further comprising two groups of first guide rods 39 and two groups of second guide rods 40, wherein the two groups of first guide rods 39 are fixedly arranged on the mounting frame 4, the extension ends of the two groups of first guide rods 39 are fixedly connected with the top end of the lifting frame 6, the two groups of second guide rods 40 are fixedly arranged on the portal frame 14, and the extension ends of the two groups of second guide rods 40 are fixedly connected with the top end of the pressing plate 16; the crane 6 can be more stably moved up and down by the two sets of the first guide rods 39, and the pressing plate 16 can be more stably moved up and down by the second guide rods 40.

When in use, the second hydraulic cylinder 15 on the second placing mechanism is started to enable the second hydraulic cylinder 15 to be in a contraction state, the virus sampling pipe is placed between the first semicircular clamping plate 21 and the second semicircular clamping plate 25 on the four groups of clamping mechanisms, the second hydraulic cylinder 15 on the second placing mechanism is started to enable the output end of the second hydraulic cylinder 15 to extend, the pressing plate 16 drives the four groups of rollers 17 to move downwards and respectively contact with the inclined plane sliding blocks 19 on the four groups of clamping mechanisms, under the pressing action of the rollers 17, the inclined plane sliding blocks 19 move along the placing groove, so that the first telescopic rod 20 moves to the second semicircular clamping plate 25, the virus sampling pipe is fixed, the cover body covers the virus sampling pipe, the stepping motor 3 is started, the stepping motor 3 drives the rotary table 2 to rotate to 180 degrees and then stops, the second placing mechanism is located below the screwing mechanism, the first hydraulic cylinder 5 is started, the output end of the first hydraulic cylinder 5 extends, the lifting frame 6 moves downwards, the cover body enters the sleeve 12, the first servo motor 8 is started, the first servo motor 8 drives the driving gear 9 to rotate, after the driving gear is driven by four groups of driven gears 10, four groups of rotating shafts 11 rotate synchronously, the sleeve 12 screws the cover body and tightly covers the virus sampling pipe, meanwhile, the next group of virus sampling pipe can be loaded into the first placing mechanism for standby, and the virus sampling pipe and the cover body are screwed and assembled by replacing manual work with machinery, so that the manual operation amount is reduced, time and labor are saved, and the production efficiency is higher; after the virus sampling tube is covered with the cover body, a second hydraulic cylinder 15 on the second placing mechanism is started, the output end of the second hydraulic cylinder 15 is shortened, the inclined plane slide block 19 moves towards the center of the placing table 13 along the placing groove under the action of a second spring 24, so that the first semicircular clamping plate 21 and the second semicircular clamping plate 25 fall off to clamp the virus sampling tube, the virus sampling tube falls onto the metal frame 26 through the first through hole 18 and the second through hole 31, the vibration motor 30 is started, the vibration motor 30 drives the vibration plate 27 to vibrate, under the action of the second telescopic rod 28 and the third spring 32, the metal frame 26 synchronously vibrates, the virus sampling tube falling onto the metal frame 26 sequentially moves forwards along the metal frame 26, the virus sampling tube can be collected and adjusted in sequence, and the virus sampling tube can be conveniently connected with next processing equipment; the virus sampling pipes falling from the forefront part of the metal frame 26 fall between the first conveyor belt 35 and the second conveyor belt 37, the second servo motor 38 is started, the second servo motor 38 drives the first conveyor roller 34 to rotate, so that the first conveyor belt 35 rotates, the virus sampling pipes are conveyed through the first conveyor belt 35, so that the virus sampling pipes are sequentially conveyed to the next processing procedure, manual sorting and conveying of the virus sampling pipes are not needed, the manual operation amount is reduced, and the production efficiency is improved; the friction coefficient between the first semicircular clamping plate 21 and the virus sampling tube and between the second semicircular clamping plate 25 and the virus sampling tube can be increased through the arrangement of the rubber materials of the first semicircular clamping plate 21 and the second semicircular clamping plate 25, so that the clamping stability is improved; the top end surface of the metal frame 26 and the horizontal plane form an included angle of 15 degrees, so that the virus sampling pipes can be sorted and conveyed in the vibration process, and the condition that the virus sampling pipes are gathered and stopped on the metal frame 26 is effectively reduced; the crane 6 can be more stably moved up and down by the two sets of the first guide rods 39, and the pressing plate 16 can be more stably moved up and down by the second guide rods 40.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a virus sampling pipe closing cap device, a serial communication port, including workstation (1), revolving stage (2), step motor (3), first placement machine construct, second placement machine construct, mounting bracket (4) and the mechanism of screwing, revolving stage (2) rotatable set up in the top of workstation (1), step motor (3) fixed set up in the bottom of workstation (1), the output of step motor (3) with revolving stage (2) transmission is connected, first placement machine construct and second placement machine construct and be located respectively the top left part and the right part of revolving stage (2), mounting bracket (4) fixed mounting in the top left part of workstation (1), the mechanism of screwing set up in on mounting bracket (4), the mechanism of screwing includes first pneumatic cylinder (5), crane (6), base (7), The lifting frame is characterized by comprising a first servo motor (8), a driving gear (9), four groups of driven gears (10) and four groups of rotating shafts (11), wherein the output end of the first hydraulic cylinder (5) is fixedly connected with the top end of the lifting frame (6), the base (7) is fixedly arranged on the lifting frame (6), the first servo motor (8) is fixedly arranged on the base (7), the driving gear (9) and the four groups of driven gears (10) can be rotatably arranged on the lifting frame (6), the output end of the first servo motor (8) is in transmission connection with the driving gear (9), the four groups of driven gears (10) are all meshed with the driving gear (9), the four groups of rotating shafts (11) can be rotatably arranged at the bottom of the lifting frame (6), and the bottom ends of the four groups of driven gears (10) are respectively and fixedly connected with the top ends of the four groups of rotating shafts (11), sleeves (12) are fixedly mounted at the bottom ends of four groups of rotating shafts (11), each of the first placing mechanism and the second placing mechanism comprises a placing table (13), four groups of clamping mechanisms, a portal frame (14), a second hydraulic cylinder (15), a pressing plate (16) and four groups of rollers (17), four groups of first through holes (18) and four groups of placing grooves are formed in the placing table (13), the four groups of clamping mechanisms are respectively mounted in the four groups of placing grooves, the portal frame (14) is fixedly mounted at the top end of the placing table (13), the second hydraulic cylinder (15) is fixedly mounted on the portal frame (14), the pressing plate (16) is fixedly arranged at the output end of the second hydraulic cylinder (15), the four groups of rollers (17) are rotatably arranged at the bottom of the pressing plate (16), and the four groups of rollers (17) are arranged corresponding to the four groups of clamping mechanisms, the four groups of clamping mechanisms respectively comprise an inclined plane sliding block (19), a first telescopic rod (20) and a first semicircular clamping plate (21), the inclined plane sliding block (19) is arranged in the placing groove in a sliding mode, the fixed end of the first telescopic rod (20) is fixedly connected with one side, far away from the center of the placing table (13), of the inclined plane sliding block (19), the first semicircular clamping plate (21) is fixedly installed at the extending end of the first telescopic rod (20), a first spring (22) is arranged at the extending end of the first telescopic rod (20), a fixing plate (23) is fixedly arranged in the placing groove, a circular hole is formed in the fixing plate (23), the first telescopic rod (20) penetrates through the circular hole, a second spring (24) is sleeved at the fixed end of the first telescopic rod (20), and the second spring (24) is located between the inclined plane sliding block (19) and the fixing plate (23), and second semicircular clamping plates (25) corresponding to the first semicircular clamping plates (21) are arranged in the four groups of first through holes (18).

2. The virus sampling tube capping device according to claim 1, further comprising a vibration receiving mechanism, wherein the vibration receiving mechanism comprises a metal frame (26), a vibration plate (27), four sets of second telescopic rods (28), a receiving frame (29) and a vibration motor (30), the receiving frame (29) is fixedly mounted at the bottom of the workbench (1), the four sets of second telescopic rods (28) are fixedly mounted on the receiving frame (29), the vibration plate (27) is fixedly mounted at the extending end of the second telescopic rods (28), the metal frame (26) is fixedly mounted on the vibration plate (27), the left portion of the workbench (1) is provided with four sets of second through holes (31) corresponding to the four sets of first through holes (18) of the first placing mechanism, and the metal frame (26) is located right below the four sets of second through holes (31), the vibration motor (30) is fixedly arranged at the bottom of the vibration plate (27), and the extension ends of the four groups of second telescopic rods (28) are respectively sleeved with a third spring (32).

3. The virus sampling tube capping device according to claim 2, further comprising a material guiding frame (33), two sets of first conveying rollers (34), a first conveying belt (35), two sets of second conveying rollers (36), a second conveying belt (37) and a second servo motor (38), wherein the material guiding frame (33) is fixedly installed at the front part of the workbench (1), the two sets of first conveying rollers (34) are respectively and rotatably installed at the front side and the rear side of the right part of the material guiding frame (33), the two sets of second conveying rollers (36) are respectively and rotatably installed at the front side and the rear side of the left part of the material guiding frame (33), the first conveying belt (35) is sleeved on the two sets of first conveying rollers (34), the second conveying belt (37) is sleeved on the two sets of second conveying rollers (36), and the second servo motor (38) is fixedly installed on the material guiding frame (33), the output end of the second servo motor (38) is in transmission connection with one group of first conveying rollers (34), the front part of the metal frame (26) is provided with an expanding ring, and the expanding ring is positioned between the first conveying belt (35) and the second conveying belt (37).

4. The virus sampling tube capping device according to claim 3, wherein the first semicircular clamping plate (21) and the second semicircular clamping plate (25) are made of rubber.

5. The virus sampling tube capping device of claim 4, wherein the top end surface of the metal frame (26) is inclined at an angle of 15 degrees to the horizontal.

6. The virus sampling tube capping device according to claim 5, further comprising two sets of first guide rods (39) and two sets of second guide rods (40), wherein the two sets of first guide rods (39) are fixedly mounted on the mounting rack (4), the extending ends of the two sets of first guide rods (39) are fixedly connected with the top end of the lifting rack (6), the two sets of second guide rods (40) are fixedly mounted on the portal frame (14), and the extending ends of the two sets of second guide rods (40) are fixedly connected with the top end of the pressing plate (16).