Double-station collaborative test tube cap screwing equipment

Abstract

The utility model discloses double-station collaborative test tube cap screwing equipment which comprises a mounting base, and the mounting base is provided with a lifting adjusting mechanism, a cap screwing station switching mechanism, a double-station cap screwing mechanism and a test tube clamping mechanism. The lifting adjusting mechanism is arranged on the upper portion of the mounting base and comprises a lifting seat, the cap screwing station switching mechanism is connected with the lifting seat, the double-station cap screwing mechanism is connected with the cap screwing station switching mechanism, and the lifting adjusting mechanism drives the cap screwing station switching mechanism and the double-station cap screwing mechanism to ascend and descend through the lifting seat. The cap screwing station switching mechanism drives the double-station cap screwing mechanism to carry out cap screwing station switching; the test tube clamping mechanism is arranged at the lower part of the mounting base, the test tube clamping mechanism is used for clamping test tubes on the test tube conveying turntable, and the double-station cap screwing mechanism is used for screwing caps of the test tubes clamped by the test tube clamping mechanism. The test tube cap screwing device realizes high-efficiency test tube cap screwing in a limited space, and solves the problems of low cap screwing efficiency and large occupied space in the prior art.

Description

Technical Field

[0001] This utility model relates to a dual-station collaborative test tube capping device, belonging to the field of test tube capping technology. Background Technology

[0002] Currently, medical testing institutions, especially the laboratories of large hospitals or professional third-party testing laboratories, need to process a large number of samples every day. If they rely on manually unscrewing or removing the caps of the test tubes one by one, the process would be extremely slow.

[0003] In modern medical testing laboratories, a complete automated testing line is typically in place. Capping and uncapping, as one step in this process, requires efficient collaboration with other equipment (such as automated sample analyzers and sample dispensers). If the capping efficiency of the uncapping machine is too low, sample backlog or waiting times will occur, creating a bottleneck in the entire line and affecting overall efficiency. Furthermore, space is often limited in medical laboratories or testing institutions, and the automated testing line equipment cannot be too large. Therefore, achieving high-efficiency tube capping within a limited space has practical application significance. Utility Model Content

[0004] Therefore, this utility model provides a dual-station collaborative test tube capping device to achieve high-efficiency test tube capping in a limited space, solving the problems of low capping efficiency and large space occupation of traditional technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-station collaborative test tube capping device, including a mounting base, wherein the mounting base is provided with a lifting adjustment mechanism, a capping station switching mechanism, a dual-station capping mechanism, and a test tube clamping mechanism;

[0006] The lifting and adjusting mechanism is located on the upper part of the mounting base. The lifting and adjusting mechanism includes a lifting seat, a cap-tightening station switching mechanism connected to the lifting seat, and a dual-station cap-tightening mechanism connected to the cap-tightening station switching mechanism. The lifting and adjusting mechanism drives the cap-tightening station switching mechanism and the dual-station cap-tightening mechanism to move up and down through the lifting seat. The cap-tightening station switching mechanism drives the dual-station cap-tightening mechanism to switch cap-tightening positions.

[0007] The test tube clamping mechanism is located at the lower part of the mounting base. The test tube clamping mechanism clamps the test tubes on the test tube conveying turntable, and the dual-station cap tightening mechanism tightens the caps on the test tubes clamped by the test tube clamping mechanism.

[0008] As a preferred embodiment of the dual-station collaborative test tube capping device, the lifting and adjusting mechanism further includes a lifting drive motor, a lifting screw, a lifting guide rail, and a lifting slider; the mounting base has a first clearance hole.

[0009] The lifting drive motor is fixed to the top of the mounting base, the lifting screw is connected to the lifting drive motor, the lifting guide rail is arranged on both sides of the first clearance hole, and the lifting guide rail is connected to the lifting seat through the lifting slider; the lifting screw passes through the lifting seat, and the end of the lifting screw is connected to a tailstock bearing; the lifting seat includes a first mounting part and a second mounting part.

[0010] As a preferred embodiment of the dual-station collaborative test tube capping device, the capping station switching mechanism includes a rotating arm motor fixing plate, a rotating arm motor body, a first synchronous pulley, a second synchronous pulley, a transmission belt, a capping shaft, and a rotating arm.

[0011] The boom motor mounting plate is connected to the outside of the first mounting part of the lifting seat. The boom motor body is connected to the boom motor mounting plate. The first synchronous pulley is connected to the drive shaft of the boom motor body. The second synchronous pulley is located above the second mounting part of the lifting seat. The upper part of the nut-twisting shaft is connected to the center of the second synchronous pulley. The transmission belt is connected between the first synchronous pulley and the second synchronous pulley and passes through the first clearance hole. The lower part of the nut-twisting shaft is inserted into the rotating arm in the second mounting part. The rotating arm and the nut-twisting shaft are fixedly connected.

[0012] As a preferred embodiment of the dual-station collaborative test tube capping device, one side of the rotating arm has a first rotating extension and a second rotating extension; the dual-station capping mechanism includes a first gripper connecting a horizontal plate, a first gripper connecting a vertical plate, a first rotating gripper, a second gripper connecting a horizontal plate, a second gripper connecting a vertical plate, and a second rotating gripper.

[0013] One end of the first gripper connecting the horizontal plate is connected to the first rotating extension, the other end of the first gripper connecting the horizontal plate is connected to the first gripper connecting the vertical plate, and the side of the first gripper connecting the vertical plate is connected to the first rotating gripper.

[0014] One end of the second gripper connecting the horizontal plate is connected to the second rotating extension, the other end of the second gripper connecting the horizontal plate is connected to the second gripper connecting the vertical plate, and the side of the second gripper connecting the vertical plate is connected to the second rotating gripper.

[0015] As a preferred embodiment of the dual-station collaborative test tube capping device, the mounting base has a second clearance hole; the second clearance hole is located below the first clearance hole; the test tube clamping mechanism is located at the position of the second clearance hole;

[0016] The test tube clamping mechanism includes a test tube clamping drive assembly, which includes a clamping base plate, a test tube clamping drive motor, a test tube clamping drive gear, a test tube clamping driven gear, a test tube clamping gear shaft, a gear drive ring, a transmission connecting rod, a pull rod shaft, and a guide block.

[0017] The clamping base plate is fixed to the bottom of the second clearance hole of the mounting base. The test tube clamping drive motor is mounted on the clamping base plate. The test tube clamping drive gear is connected to the drive shaft of the test tube clamping drive motor. The test tube clamping driven gear is located on one side of the upper end of the clamping base plate. The test tube clamping driven gear and the test tube clamping drive gear mesh. The test tube clamping gear shaft is fixed at the center of the test tube clamping driven gear. The upper end of the test tube clamping gear shaft is connected to the gear drive ring. One end of the transmission connecting rod is connected to the edge of the gear drive ring through a bearing. The other end of the transmission connecting rod is connected to one end of the pull rod shaft through a bearing. The guide block is fixed on the other side of the upper end of the clamping base plate. The pull rod shaft extends from the center of the guide block.

[0018] As a preferred embodiment of the dual-station collaborative test tube capping device, the test tube clamping mechanism includes a test tube picking and placing gripper assembly, which includes a gripper fixing box, a bearing fixing plate, a first drive bearing, a second drive bearing, a first guide shaft, a first gripper fixing plate, a second gripper fixing plate, and a return spring.

[0019] The bearing fixing plate is disposed inside the gripper fixing box. The pull rod shaft extends from the center of the guide block and is inserted into the gripper fixing box and connected to the bearing fixing plate. The first drive bearing is disposed on one side of the upper end of the bearing fixing plate, and the second drive bearing is disposed on the other side of the upper end of the bearing fixing plate.

[0020] The first guide shaft is connected to the front of the gripper fixing box, the first gripper fixing plate is sleeved on one end of the first guide shaft, the second gripper fixing plate is sleeved on the other end of the first guide shaft, and the return spring is disposed between the first gripper fixing plate and the second gripper fixing plate.

[0021] The rear end of the first gripper fixing plate is formed with a first driving ramp, and the first driving bearing contacts the first driving ramp; the rear end of the second gripper fixing plate is formed with a second driving ramp, and the second driving bearing contacts the second driving ramp.

[0022] The first clamping plate has a first test tube holding part formed at its front end, and the second clamping plate has a second test tube holding part formed at its front end.

[0023] As a preferred embodiment of the dual-station collaborative test tube capping device, a first guide step is formed at the bottom of the first drive ramp, and the lower part of the first drive bearing is placed on the first guide step; a second guide step is formed at the bottom of the second drive ramp, and the lower part of the second drive bearing is placed on the second guide step.

[0024] Three second guide shafts are connected between the guide block and the gripper fixing box. The three second guide shafts are distributed in a triangle, and a buffer spring is provided on one of the second guide shafts.

[0025] This utility model has the following advantages: By providing a lifting adjustment mechanism, a cap-tightening station switching mechanism, a dual-station cap-tightening mechanism, and a test tube clamping mechanism on the mounting base, the test tube clamping mechanism is controlled to clamp the test tube body on the test tube conveying turntable; after the test tube clamping mechanism clamps the test tube body on the test tube conveying turntable, the cap-tightening station switching mechanism is controlled to drive the first cap-tightening station in the dual-station cap-tightening mechanism to tighten the cap on the test tube body clamped by the test tube clamping mechanism; after the first cap-tightening station in the dual-station cap-tightening mechanism tightens the cap on the test tube body clamped by the test tube clamping mechanism, the test tube clamping mechanism is controlled to release the cap. The test tube body on the test tube transport turntable is retracted to its initial state; the operation of the test tube transport turntable is controlled, and when the next uncapped test tube body on the test tube transport turntable is in place, the test tube clamping mechanism is controlled to clamp the next uncapped test tube body on the test tube transport turntable; the capping station switching mechanism is controlled to drive the second capping station in the dual-station capping mechanism to cap the next uncapped test tube body clamped by the test tube clamping mechanism; during the capping of the next uncapped test tube body, the caps carried by the first capping station in the dual-station capping mechanism are released into the test tube cap storage container. This utility model can achieve high-efficiency capping and uncapping of test tubes, avoid sample backlog or waiting, improve the efficiency of the entire production line, and the corresponding equipment occupies little space, making it particularly suitable for use in hospital laboratories or professional third-party testing laboratories. Attached Figure Description

[0026] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0027] Figure 1 This is a first-view three-dimensional structural diagram of the dual-station collaborative test tube device provided in this embodiment of the utility model;

[0028] Figure 2This is a second-view three-dimensional structural diagram of the dual-station collaborative test tube device provided in this embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the combination of the cap-tightening station switching mechanism and the dual-station cap-tightening mechanism in the dual-station collaborative test tube equipment provided in this embodiment of the utility model.

[0030] Figure 4 This is a first-view three-dimensional structural diagram of the test tube clamping mechanism in the dual-station collaborative test tube device provided in this embodiment of the utility model.

[0031] Figure 5 This is a second-view three-dimensional structural diagram of the test tube clamping mechanism in the dual-station collaborative test tube device provided in this utility model embodiment;

[0032] Figure 6 This is a schematic diagram of the test tube picking and placing gripper assembly in the dual-station collaborative test tube device provided in this embodiment of the utility model.

[0033] In the diagram: 1. Mounting base; 2. Lifting and adjusting mechanism; 3. Cap-tightening station switching mechanism; 4. Dual-station cap-tightening mechanism; 5. Test tube clamping mechanism; 6. Lifting seat; 7. Lifting drive motor; 8. Lifting lead screw; 9. Lifting guide rail; 10. Lifting slider; 11. First clearance hole; 12. First mounting part; 13. Second mounting part; 14. Rotary arm motor fixing plate; 15. Rotary arm motor body; 16. First synchronous pulley; 17. Second synchronous pulley; 18. Transmission belt; 19. Cap-tightening shaft; 20. Rotating arm; 21. First rotating extension part; 22. Second rotating extension part; 23. First gripper connecting horizontal plate; 24. First gripper connecting vertical plate; 25. First rotating gripper; 26. Second gripper connecting horizontal plate; 27. Second gripper connecting vertical plate; 28. 29. Second rotating gripper; 30. Second clearance hole; 31. Clamping base plate; 32. Test tube clamping drive motor; 33. Test tube clamping drive gear; 34. Test tube clamping driven gear; 35. Test tube clamping gear shaft; 36. Gear drive ring; 37. Transmission connecting rod; 38. Pull rod shaft; 39. Guide block; 40. Gripper fixing box; 41. Bearing fixing plate; 42. First drive bearing; 43. Second drive bearing; 44. First guide shaft; 45. First gripper fixing plate; 46. Second gripper fixing plate; 47. Return spring; 48. First drive ramp; 49. Second drive ramp; 50. First test tube clamping part; 51. Second test tube clamping part; 52. First guide step; 53. Second guide step; 54. Buffer spring; 55. Second guide shaft. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] See Figure 1 and Figure 2 This utility model provides a dual-station collaborative test tube capping device, including a mounting base 1. The mounting base 1 is provided with a lifting adjustment mechanism 2, a capping station switching mechanism 3, a dual-station capping mechanism 4, and a test tube clamping mechanism 5.

[0036] The lifting and adjusting mechanism 2 is located on the upper part of the mounting base 1. The lifting and adjusting mechanism 2 includes a lifting seat 6, a cap-tightening station switching mechanism 3 connected to the lifting seat 6, and a dual-station cap-tightening mechanism 4 connected to the cap-tightening station switching mechanism 3. The lifting and adjusting mechanism 2 drives the cap-tightening station switching mechanism 3 and the dual-station cap-tightening mechanism 4 to move up and down through the lifting seat 6. The cap-tightening station switching mechanism 3 drives the dual-station cap-tightening mechanism 4 to switch the cap-tightening station. The test tube clamping mechanism 5 is located on the lower part of the mounting base 1. The test tube clamping mechanism 5 clamps the test tubes on the test tube conveying turntable. The dual-station cap-tightening mechanism 4 tightens the caps on the test tubes clamped by the test tube clamping mechanism 5.

[0037] In this embodiment, the lifting adjustment mechanism 2 further includes a lifting drive motor 7, a lifting screw 8, a lifting guide rail 9, and a lifting slider 10; the mounting base 1 has a first clearance hole 11; the lifting drive motor 7 is fixed on the top of the mounting base 1, the lifting screw 8 is connected to the lifting drive motor 7, the lifting guide rail 9 is arranged on both sides of the first clearance hole 11, and the lifting guide rail 9 is connected to the lifting seat 6 through the lifting slider 10; the lifting screw 8 passes through the lifting seat 6, and the end of the lifting screw 8 is connected to a tailstock bearing; the lifting seat 6 includes a first mounting part 12 and a second mounting part 13.

[0038] See Figure 1 , Figure 2 and Figure 3 Specifically, by designing a first clearance hole 11 on the mounting base 1, it is convenient to install and arrange the lifting adjustment mechanism 2. The lifting drive motor 7 can drive the lifting slider 10 to move up and down along the lifting guide rail 9 through the lifting screw 8. The up and down movement of the lifting slider 10 can drive the cap-tightening station switching mechanism 3 and the dual-station cap-tightening mechanism 4 to move up and down as a whole, thereby facilitating the docking of the dual-station cap-tightening mechanism 4 with the test tube body clamped by the test tube clamping mechanism 5.

[0039] In this embodiment, the cap-tightening station switching mechanism 3 includes a rotating arm motor fixing plate 14, a rotating arm motor body 15, a first synchronous pulley 16, a second synchronous pulley 17, a transmission belt 18, a cap-tightening shaft 19, and a rotating arm 20. The rotating arm motor fixing plate 14 is connected to the outside of the first mounting part 12 of the lifting seat 6. The rotating arm motor body 15 is connected to the rotating arm motor fixing plate 14. The first synchronous pulley 16 is connected to the drive shaft of the rotating arm motor body 15. The second synchronous pulley 17 is disposed above the second mounting part 13 of the lifting seat 6. The upper part of the cap-tightening shaft 19 is connected to the center of the second synchronous pulley 17. The transmission belt 18 is connected between the first synchronous pulley 16 and the second synchronous pulley 17 and passes through the first clearance hole 11. The lower part of the cap-tightening shaft 19 is inserted into the rotating arm 20 in the second mounting part 13, and the rotating arm 20 and the cap-tightening shaft 19 are fixedly connected.

[0040] See Figure 1 , Figure 2 and Figure 3 Specifically, the rotating arm motor mounting plate 14 is used to install the rotating arm motor body 15. At the same time, the rotating arm motor mounting plate 14 and the lifting seat 6 are fixedly connected. The lifting seat 6 drives the cap-tightening station switching mechanism 3 to rise and fall through the rotating arm motor mounting plate 14. The rotating arm motor body 15 drives the second synchronous wheel 17 through the first synchronous wheel 16 and the transmission belt 18. The second synchronous wheel 17 can swing through the cap-tightening shaft 19. The swing of the cap-tightening shaft 19 drives the rotating arm 20 to swing. The swing of the rotating arm 20 can drive the dual-station cap-tightening mechanism 4 to switch between the first cap-tightening station and the second cap-tightening station.

[0041] The rotating arm 20 has a first rotating extension 21 and a second rotating extension 22 on one side; the dual-station cap tightening mechanism 4 includes a first gripper connecting horizontal plate 23, a first gripper connecting vertical plate 24, a first rotating gripper 25, a second gripper connecting horizontal plate 26, a second gripper connecting vertical plate 27, and a second rotating gripper 28; one end of the first gripper connecting horizontal plate 23 is connected to the first rotating extension 21, the other end of the first gripper connecting horizontal plate 23 is connected to the first gripper connecting vertical plate 24, and the side of the first gripper connecting vertical plate 24 is connected to the first rotating gripper 25; one end of the second gripper connecting horizontal plate 26 is connected to the second rotating extension 22, the other end of the second gripper connecting horizontal plate 26 is connected to the second gripper connecting vertical plate 27, and the side of the second gripper connecting vertical plate 27 is connected to the second rotating gripper 28.

[0042] Specifically, the rotating arm 20 drives the first gripper to connect to the horizontal plate 23 via the first rotating extension 21. The first gripper connected to the horizontal plate 23 drives the first gripper to connect to the vertical plate 24. The first gripper connected to the vertical plate 24 drives the first rotating gripper 25 of the first cap-tightening station. The rotating arm 20 drives the second gripper to connect to the horizontal plate 26 via the second rotating extension 22. The second gripper connected to the horizontal plate 26 drives the second gripper to connect to the vertical plate 27. The second gripper connected to the vertical plate 27 drives the second rotating gripper 28 of the second cap-tightening station. Thus, the rotating arm 20 swings to drive the dual-station cap-tightening mechanism 4 to switch between the first cap-tightening station and the second cap-tightening station.

[0043] In this embodiment, the mounting base 1 has a second clearance hole 29; the second clearance hole 29 is located below the first clearance hole 11; the test tube clamping mechanism 5 is located at the second clearance hole 29; the test tube clamping mechanism 5 includes a test tube clamping drive assembly, which includes a clamping base plate 30, a test tube clamping drive motor 31, a test tube clamping drive gear 32, a test tube clamping driven gear 33, a test tube clamping gear shaft 34, a gear drive ring 35, a transmission connecting rod 36, a pull rod shaft 37, and a guide block 38; the clamping base plate 30 is fixed to the bottom of the second clearance hole 29 of the mounting base 1, and the test tube clamping drive motor 31 is mounted on the clamping base plate 30. The tube clamping drive gear 32 is connected to the drive shaft of the tube clamping drive motor 31. The tube clamping driven gear 33 is set on one side of the upper end of the clamping base plate 30, and the tube clamping driven gear 33 and the tube clamping drive gear 32 mesh. The center of the tube clamping driven gear 33 is fixed with a tube clamping gear shaft 34. The upper end of the tube clamping gear shaft 34 is connected to a gear drive ring 35. One end of the transmission connecting rod 36 is connected to the edge of the gear drive ring 35 through a bearing. The other end of the transmission connecting rod 36 is connected to one end of the pull rod shaft 37 through a bearing. The guide block 38 is fixed on the other side of the upper end of the clamping base plate 30, and the pull rod shaft 37 extends from the center of the guide block 38.

[0044] See Figure 1 , Figure 2 , Figure 4 and Figure 5 Specifically, a second clearance hole 29 is designed on the mounting base 1 to facilitate the installation and arrangement of the test tube clamping mechanism 5. The test tube clamping drive motor 31 is installed and fixed by the clamping base plate 30. The test tube clamping drive motor 31 drives the test tube clamping driven gear 33 via the test tube clamping drive gear 32. The test tube clamping driven gear 33 drives the gear drive ring 35 via the test tube clamping gear shaft 34. The gear drive ring 35 drives the pull rod shaft 37 to reciprocate via the transmission connecting rod 36. The reciprocating motion of the pull rod shaft 37 enables the test tube clamping drive assembly to extend or retract the test tube pick-and-place gripper assembly. The guide block 38 guides the pull rod shaft 37, ensuring that the pull rod shaft 37 moves in a straight line.

[0045] It should be noted that the gear drive ring 35 drives the pull rod shaft 37 to reciprocate through the transmission link 36 mainly because both ends of the transmission link 36 are designed with bearings, which achieves the hinge effect that both ends of the transmission link 36 can rotate around the bearings. The rotation of the gear drive ring 35 realizes the reciprocating motion of the pull rod shaft 37. At the same time, the other end of the pull rod shaft 37 can also drive the connected test tube pick-and-place gripper assembly to reciprocate.

[0046] In this embodiment, the test tube clamping mechanism 5 includes a test tube pick-and-place gripper assembly, which includes a gripper fixing box 39, a bearing fixing plate 40, a first drive bearing 41, a second drive bearing 42, a first guide shaft 43, a first gripper fixing plate 44, a second gripper fixing plate 45, and a return spring 46. The bearing fixing plate 40 is disposed inside the gripper fixing box 39. The pull rod shaft 37 extends from the center of the guide block 38 and is inserted into the gripper fixing box 39 and connected to the bearing fixing plate 40. The first drive bearing 41 is disposed on one side of the upper end of the bearing fixing plate 40, and the second drive bearing 42 is disposed on the other side of the upper end of the bearing fixing plate 40. The first guide shaft 43 is connected to the gripper. At the front of the claw fixing box 39, a first claw fixing plate 44 is fitted onto one end of a first guide shaft 43, and a second claw fixing plate 45 is fitted onto the other end of the first guide shaft 43. A return spring 46 is disposed between the first claw fixing plate 44 and the second claw fixing plate 45. A first driving ramp 47 is formed at the rear end of the first claw fixing plate 44, and a first driving bearing 41 contacts the first driving ramp 47. A second driving ramp 48 is formed at the rear end of the second claw fixing plate 45, and a second driving bearing 42 contacts the second driving ramp 48. A first test tube clamping part 49 is formed at the front end of the first claw fixing plate 44, and a second test tube clamping part 50 is formed at the front end of the second claw fixing plate 45.

[0047] See Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6Specifically, the gripper fixing box 39 serves to install the bearing fixing plate 40, the first drive bearing 41, the second drive bearing 42, the first guide shaft 43, the first gripper fixing plate 44, the second gripper fixing plate 45, and the return spring 46. The pull rod shaft 37 can drive the bearing fixing plate 40 to extend or retract. The extension or retraction of the bearing fixing plate 40 drives the first drive bearing 41 and the second drive bearing 42 to extend or retract. During the extension of the first drive bearing 41 and the second drive bearing 42, they respectively compress the first drive ramp 47 and the second drive ramp 48. The moving bearing 41 presses against the first driving ramp 47, and the second driving bearing 42 presses against the second driving ramp 48, thereby bringing the first gripper fixing plate 44 and the second gripper fixing plate 45 closer together, thus achieving the clamping action of the test tube; when the first driving bearing 41 and the second driving bearing 42 retract, the first driving bearing 41 slowly releases the pressed first driving ramp 47, and the second driving bearing 42 slowly releases the pressed second driving ramp 48. Under the action of the configured return spring 46, the first gripper fixing plate 44 and the second gripper fixing plate 45 move away from each other, thus achieving the releasing action of the test tube.

[0048] In one possible embodiment, a first guide step 51 is formed at the bottom of the first drive ramp 47, and the lower part of the first drive bearing 41 is placed on the first guide step 51; a second guide step 52 is formed at the bottom of the second drive ramp 48, and the lower part of the second drive bearing 42 is placed on the second guide step 52.

[0049] See Figure 6 Specifically, the first guide step 51 ensures that the first drive bearing 41 slides stably along the first drive ramp 47, and the second guide step 52 ensures that the second drive bearing 42 slides stably along the second drive ramp 48, thereby ensuring the stability of the clamping or loosening action of the first gripper fixing plate 44 and the second gripper fixing plate 45.

[0050] In one possible embodiment, three second guide shafts 54 are connected between the guide block 38 and the gripper fixing box 39. The three second guide shafts 54 are arranged in a triangle, and a buffer spring 53 is provided on one of the second guide shafts 54.

[0051] See Figure 4 and Figure 5 The second guide shaft 54 ​​between the guide block 38 and the gripper fixing box 39 ensures that the pull rod shaft 37 can stably drive the bearing fixing plate 40 to extend or retract.

[0052] In summary, this utility model, by providing a lifting adjustment mechanism 2, a cap-tightening station switching mechanism 3, a dual-station cap-tightening mechanism 4, and a test tube clamping mechanism 5 on the mounting base 1, controls the test tube clamping mechanism 5 to clamp the test tube body on the test tube conveying turntable; after the test tube clamping mechanism 5 clamps the test tube body on the test tube conveying turntable, the cap-tightening station switching mechanism 3 controls the first cap-tightening station in the dual-station cap-tightening mechanism 4 to tighten the cap on the test tube body clamped by the test tube clamping mechanism 5; after the first cap-tightening station in the dual-station cap-tightening mechanism 4 tightens the cap on the test tube body clamped by the test tube clamping mechanism 5, the test tube clamping mechanism 5 is released. After the cap is tightened, the test tube body on the test tube transport turntable is retracted to its initial state; the test tube transport turntable is controlled to operate, and when the next uncapped test tube body on the test tube transport turntable is in place, the test tube clamping mechanism 5 is controlled to clamp the next uncapped test tube body on the test tube transport turntable; the cap tightening station switching mechanism 3 is controlled to drive the second cap tightening station in the dual-station cap tightening mechanism 4 to tighten the cap on the next uncapped test tube body clamped by the test tube clamping mechanism 5; during the cap tightening process of the next uncapped test tube body, the test tube cap carried by the first cap tightening station in the dual-station cap tightening mechanism 4 is released into the test tube cap storage container. The installation base 1 features a first clearance hole 11 to facilitate the installation of the lifting adjustment mechanism 2. The lifting drive motor 7, via the lifting screw 8, drives the lifting slider 10 to move up and down along the lifting guide rail 9. This movement of the slider 10 drives the cap-tightening station switching mechanism 3 and the dual-station cap-tightening mechanism 4 to move up and down as a whole, facilitating the connection between the dual-station cap-tightening mechanism 4 and the test tube clamping mechanism 5. The rotating arm motor fixing plate 14 is used to install the rotating arm motor body 15. The rotating arm motor fixing plate 14 is also fixedly connected to the lifting seat 6. The lifting seat 6 drives the cap-tightening station switching mechanism 3 to move up and down via the rotating arm motor fixing plate 14. The rotating arm motor body 15 drives the second synchronous wheel 17 via the first synchronous wheel 16 and the transmission belt 18. The second synchronous wheel 17 can swing via the cap-tightening shaft 19, which in turn drives the rotating arm 20 to swing. This swinging motion of the rotating arm 20 allows the dual-station cap-tightening mechanism 4 to switch between the first and second cap-tightening positions. The rotating arm 20 drives the first gripper connected to the horizontal plate 23 via the first rotating extension 21. The first gripper connected to the horizontal plate 23 drives the first gripper connected to the vertical plate 24. The first gripper connected to the vertical plate 24 drives the first rotating gripper 25 of the first cap-tightening station. The rotating arm 20 drives the second gripper connected to the horizontal plate 26 via the second rotating extension 22. The second gripper connected to the horizontal plate 26 drives the second gripper connected to the vertical plate 27. The second gripper connected to the vertical plate 27 drives the second rotating gripper 28 of the second cap-tightening station. This allows the rotating arm 20 to swing and drive the dual-station cap-tightening mechanism 4 to switch between the first and second cap-tightening stations. A second clearance hole 29 is designed on the mounting base 1 to facilitate the installation and arrangement of the test tube clamping mechanism 5.The test tube clamping drive motor 31 is installed and fixed by the clamping base plate 30. The test tube clamping drive motor 31 drives the test tube clamping driven gear 33 through the test tube clamping drive gear 32. The test tube clamping driven gear 33 drives the gear drive ring 35 through the test tube clamping gear shaft 34. The gear drive ring 35 drives the pull rod shaft 37 to reciprocate through the transmission connecting rod 36. The reciprocating motion of the pull rod shaft 37 enables the test tube clamping drive assembly to extend or retract the test tube picking and placing gripper assembly. The guide block 38 guides the pull rod shaft 37 to ensure that the pull rod shaft 37 moves in a straight line. The gripper fixing box 39 serves to install the bearing fixing plate 40, the first drive bearing 41, the second drive bearing 42, the first guide shaft 43, the first gripper fixing plate 44, the second gripper fixing plate 45, and the return spring 46. The pull rod shaft 37 can drive the bearing fixing plate 40 to extend or retract. The extension or retraction of the bearing fixing plate 40 causes the first drive bearing 41 and the second drive bearing 42 to extend or retract. During the extension of the first drive bearing 41 and the second drive bearing 42, they respectively compress the first drive ramp 47 and the second drive ramp 48. 41 compresses the first drive ramp 47, and the second drive bearing 42 compresses the second drive ramp 48, thereby bringing the first gripper fixing plate 44 and the second gripper fixing plate 45 closer together, achieving the test tube clamping action. During the retraction of the first drive bearing 41 and the second drive bearing 42, the first drive bearing 41 slowly releases the compressed first drive ramp 47, and the second drive bearing 42 slowly releases the compressed second drive ramp 48. Under the action of the configured return spring 46, the first gripper fixing plate 44 and the second gripper fixing plate 45 move away from each other, achieving the test tube release action. This utility model can achieve highly efficient test tube cap tightening and loosening, avoiding sample backlog or waiting, improving the efficiency of the entire production line. At the same time, the corresponding equipment occupies little space, making it particularly suitable for use in hospital laboratories or professional third-party testing laboratories.

[0053] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A dual-station collaborative test tube capping device, characterized in that, It includes a mounting base (1), which is provided with a lifting adjustment mechanism (2), a cap-tightening station switching mechanism (3), a dual-station cap-tightening mechanism (4) and a test tube clamping mechanism (5); The lifting adjustment mechanism (2) is located on the upper part of the mounting base (1). The lifting adjustment mechanism (2) includes a lifting seat (6). The cap tightening station switching mechanism (3) is connected to the lifting seat (6). The dual-station cap tightening mechanism (4) is connected to the cap tightening station switching mechanism (3). The lifting adjustment mechanism (2) drives the cap tightening station switching mechanism (3) and the dual-station cap tightening mechanism (4) to lift and lower through the lifting seat (6). The cap tightening station switching mechanism (3) drives the dual-station cap tightening mechanism (4) to switch cap tightening stations. The test tube clamping mechanism (5) is located at the lower part of the mounting base (1). The test tube clamping mechanism (5) clamps the test tubes on the test tube conveying turntable. The dual-station cap tightening mechanism (4) tightens the caps on the test tubes clamped by the test tube clamping mechanism (5).

2. The dual-station collaborative test tube capping device according to claim 1, characterized in that, The lifting adjustment mechanism (2) further includes a lifting drive motor (7), a lifting screw (8), a lifting guide rail (9), and a lifting slider (10); the mounting base (1) has a first clearance hole (11); The lifting drive motor (7) is fixed to the top of the mounting base (1), the lifting screw (8) is connected to the lifting drive motor (7), the lifting guide rail (9) is set on both sides of the first clearance hole (11), the lifting guide rail (9) is connected to the lifting seat (6) through the lifting slider (10); the lifting screw (8) passes through the lifting seat (6), and the end of the lifting screw (8) is connected to a tailstock bearing; The lifting seat (6) includes a first mounting part (12) and a second mounting part (13).

3. The dual-station collaborative test tube capping device according to claim 2, characterized in that, The cap-tightening station switching mechanism (3) includes a rotating arm motor fixing plate (14), a rotating arm motor body (15), a first synchronous pulley (16), a second synchronous pulley (17), a transmission belt (18), a cap-tightening shaft (19), and a rotating arm (20); The rotating arm motor fixing plate (14) is connected to the outside of the first mounting part (12) of the lifting seat (6). The rotating arm motor body (15) is connected to the rotating arm motor fixing plate (14). The first synchronous pulley (16) is connected to the drive shaft of the rotating arm motor body (15). The second synchronous pulley (17) is located above the second mounting part (13) of the lifting seat (6). The upper part of the cap-twisting shaft (19) is connected to the center of the second synchronous pulley (17). The transmission belt (18) is connected between the first synchronous pulley (16) and the second synchronous pulley (17). The transmission belt (18) passes through the first clearance hole (11). The lower part of the cap-twisting shaft (19) is inserted into the rotating arm (20) in the second mounting part (13). The rotating arm (20) and the cap-twisting shaft (19) are fixedly connected.

4. The dual-station collaborative test tube capping device according to claim 3, characterized in that, The rotating arm (20) has a first rotating extension (21) and a second rotating extension (22) on one side; the dual-station cap tightening mechanism (4) includes a first gripper connecting horizontal plate (23), a first gripper connecting vertical plate (24), a first rotating gripper (25), a second gripper connecting horizontal plate (26), a second gripper connecting vertical plate (27), and a second rotating gripper (28); One end of the first gripper connecting horizontal plate (23) is connected to the first rotating extension (21), the other end of the first gripper connecting horizontal plate (23) is connected to the first gripper connecting vertical plate (24), and the side of the first gripper connecting vertical plate (24) is connected to the first rotating gripper (25). One end of the second gripper connecting horizontal plate (26) is connected to the second rotating extension (22), the other end of the second gripper connecting horizontal plate (26) is connected to the second gripper connecting vertical plate (27), and the side of the second gripper connecting vertical plate (27) is connected to the second rotating gripper (28).

5. The dual-station collaborative test tube capping device according to claim 4, characterized in that, The mounting base (1) has a second clearance hole (29); the second clearance hole (29) is located below the first clearance hole (11); the test tube clamping mechanism (5) is located at the position of the second clearance hole (29); The test tube clamping mechanism (5) includes a test tube clamping drive assembly, which includes a clamping base plate (30), a test tube clamping drive motor (31), a test tube clamping drive gear (32), a test tube clamping driven gear (33), a test tube clamping gear shaft (34), a gear drive ring (35), a transmission connecting rod (36), a pull rod shaft (37), and a guide block (38). The clamping base plate (30) is fixed to the bottom of the second clearance hole (29) of the mounting base (1). The test tube clamping drive motor (31) is mounted on the clamping base plate (30). The test tube clamping drive gear (32) is connected to the drive shaft of the test tube clamping drive motor (31). The test tube clamping driven gear (33) is located on one side of the upper end of the clamping base plate (30). The test tube clamping driven gear (33) and the test tube clamping drive gear (32) mesh. The test tube clamping gear shaft (34) is fixed at the center of the test tube clamping gear shaft (34). The upper end of the test tube clamping gear shaft (34) is connected to the gear drive ring (35). One end of the transmission link (36) is connected to the edge of the gear drive ring (35) through a bearing. The other end of the transmission link (36) is connected to one end of the pull rod shaft (37) through a bearing. The guide block (38) is fixed on the other side of the upper end of the clamping base plate (30). The pull rod shaft (37) extends from the center of the guide block (38).

6. The dual-station collaborative test tube capping device according to claim 5, characterized in that, The test tube clamping mechanism (5) includes a test tube pick-and-place gripper assembly, which includes a gripper fixing box (39), a bearing fixing plate (40), a first drive bearing (41), a second drive bearing (42), a first guide shaft (43), a first gripper fixing plate (44), a second gripper fixing plate (45), and a return spring (46). The bearing fixing plate (40) is disposed inside the gripper fixing box (39). The pull rod shaft (37) extends from the center of the guide block (38) and is inserted into the gripper fixing box (39) and connected to the bearing fixing plate (40). The first drive bearing (41) is disposed on one side of the upper end of the bearing fixing plate (40), and the second drive bearing (42) is disposed on the other side of the upper end of the bearing fixing plate (40). The first guide shaft (43) is connected to the front of the gripper fixing box (39), the first gripper fixing plate (44) is sleeved on one end of the first guide shaft (43), the second gripper fixing plate (45) is sleeved on the other end of the first guide shaft (43), and the reset spring (46) is disposed between the first gripper fixing plate (44) and the second gripper fixing plate (45). The rear end of the first gripper fixing plate (44) is formed with a first driving ramp (47), and the first driving bearing (41) contacts the first driving ramp (47); the rear end of the second gripper fixing plate (45) is formed with a second driving ramp (48), and the second driving bearing (42) contacts the second driving ramp (48). The first clamping plate (44) has a first test tube clamping part (49) at its front end, and the second clamping plate (45) has a second test tube clamping part (50) at its front end.

7. A dual-station collaborative test tube capping device according to claim 6, characterized in that, The bottom of the first drive ramp (47) has a first guide step (51) and the lower part of the first drive bearing (41) is placed on the first guide step (51); the bottom of the second drive ramp (48) has a second guide step (52) and the lower part of the second drive bearing (42) is placed on the second guide step (52). Three second guide shafts (54) are connected between the guide block (38) and the gripper fixing box (39). The three second guide shafts are arranged in a triangle, and a buffer spring (53) is provided on one of the second guide shafts (54).

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