Automated production of microtubes

Abstract

The application discloses a kind of microtubule automation production device, including rack, annular conveying mechanism is rotationally arranged on rack, a plurality of test tube racks for loading microtubule are fixed on annular conveying mechanism, test tube filling mechanism, spraying mechanism, drying mechanism, cap filling mechanism, cap pressing mechanism, cap presence / absence detection mechanism, cap pressing detection mechanism, rejection mechanism and tray loading mechanism are sequentially provided along the conveying path of annular conveying mechanism, and test tube filling mechanism is adjacently arranged with tray loading mechanism.The microtubule automation production device of the application can automatically complete a series of work such as feeding, drying assembly and automatic tray loading of microtubule, the whole process has high degree of automation, the device structure design is reasonable, operation accuracy is high, efficiency is high, can greatly improve the production efficiency of microtubule, save manpower and material resources, reduce production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of micro-pipette production, in particular to a micro-pipette automatic production device. BACKGROUND

[0002] With the popularization of high-tech detection technology and the upgrading of fully-automatic inspection equipment, blood samples required by various clinical inspection items are increasingly micro. Micro blood collection tubes solve the needs of clinical tests of medical institutions and the problems of collection of peripheral blood samples with their unique safety design and effective quality control, and are mainly applied to the collection of blood samples of infants, patients in failure and other patients with difficulty in blood collection. The micro blood collection tube is composed of a micro-pipette and a cap, and the cap is covered on the top end of the micro-pipette. The existing micro-pipette production device mainly adopts a production mode combining manual work and semi-automatic equipment, which is low in production efficiency and wastes manpower and resources. SUMMARY

[0003] In view of the above problems, the present application aims to provide a micro-pipette automatic production device to solve the problems of low production efficiency and waste of manpower and resources caused by the inability of the existing micro-pipette production device to realize fully-automatic production.

[0004] The present application is implemented as follows:

[0005] A micro-pipette automatic production device, comprising a rack, an annular conveying mechanism rotatably arranged on the rack, a plurality of test tube racks for loading micro-pipettes fixedly arranged on the annular conveying mechanism, a test tube loading mechanism, a spraying mechanism, a drying mechanism, a cap loading mechanism, a cap pressing mechanism, a cap presence / absence detection mechanism, a cap pressing detection mechanism, a rejection mechanism and a tray loading mechanism sequentially arranged along a conveying path of the annular conveying mechanism, and the test tube loading mechanism and the tray loading mechanism being adjacently arranged.

[0006] Further, the annular conveying mechanism comprises a conveying chain arranged above the rack, a driving sprocket, a driven sprocket, a conveying guide rail and a driving unit arranged in the rack, the driving sprocket and the driven sprocket are rotatably arranged at two ends above the rack respectively, the conveying chain is sleeved outside the driving sprocket and the driven sprocket, the driving unit comprises a driving motor and a cam divider arranged in the rack, the driving motor and the cam divider are connected through a frequency adjuster, the output end of the cam divider is fixedly connected with the driving sprocket, one end of the test tube rack is fixedly connected with the conveying chain, and the other end is abuttingly connected with the conveying guide rail.

[0007] Further, the spraying mechanism is an anticoagulant spraying mechanism and / or a coagulant spraying mechanism, the anticoagulant spraying mechanism comprising a pressure barrel fixedly arranged above the rack and a plunger valve for injecting an anticoagulant into the micro-pipette, an outlet end of the pressure barrel being communicated with an inlet end of the plunger valve through a pipeline, and the coagulant spraying mechanism comprising a pressure tank arranged above the rack and a pinch valve for injecting a coagulant into the micro-pipette, an outlet end of the pressure tank being communicated with an inlet end of the pinch valve through a pipeline.

[0008] Further, the test tube loading mechanism comprises a test tube shaking disc, a test tube conveying channel, a test tube distribution slider, a lifting unit and a test tube clamping unit, the test tube shaking disc is located on one side of the rack, an inlet end of the test tube conveying channel is communicated with an outlet end of the test tube shaking disc, an outlet end of the test tube conveying channel is connected with the test tube distribution slider, a test tube distribution cylinder is fixedly arranged below the test tube distribution slider, a movable end of the test tube distribution cylinder is fixedly connected with a bottom of the test tube distribution slider and drives the test tube distribution slider to reciprocally slide along a width direction of the conveying channel, the lifting unit is vertically slidably arranged below the test tube distribution slider, the lifting unit is used for lifting a plurality of test tubes in the test tube distribution slider upward, and the test tube clamping unit is located above the test tube distribution slider, the test tube clamping unit is used for clamping the plurality of test tubes lifted by the lifting unit into a test tube rack fixed on the conveying chain.

[0009] Further, the cap loading mechanism comprises a cap shaking disc, a cap conveying channel, a cap distribution slider, a cap suction unit and a cap clamping unit, the cap shaking disc is located on the other side of the rack, an inlet end of the cap conveying channel is communicated with an outlet end of the cap shaking disc, an outlet end of the cap conveying channel is connected with the cap distribution slider, a cap distribution cylinder is fixedly arranged below the cap distribution slider, a movable end of the cap distribution cylinder is fixedly connected with a bottom of the cap distribution slider and drives the cap distribution slider to reciprocally move along a width direction of the cap conveying channel, the cap suction unit is located above the cap distribution slider, the cap suction unit is used for suctioning and moving the cap output by the cap shaking disc into the cap clamping unit, and the cap clamping unit is openably and closably arranged above the conveying chain.

[0010] Further, the number of cap pressing mechanisms is two, and the two cap pressing mechanisms are arranged along a length direction of the rack, each cap pressing mechanism comprises a plurality of cap pressing cylinders fixedly arranged above the conveying chain, each cap pressing cylinder is vertically downwardly arranged, a movable end of each cap pressing cylinder is fixedly connected with a pressing rod, and a bottom end of the pressing rod is rotatably provided with a pressing seat for pressing the cap.

[0011] Further, the cap presence / absence detection mechanism comprises a first sliding frame vertically slidably arranged above the conveying chain, a plurality of first guide sleeves are fixedly arranged on the first sliding frame, a first guide rod is coaxially arranged in each first guide sleeve, the first guide rod is slidably connected with the first guide sleeve, and an upper side of each first guide sleeve is provided with a proximity switch for sensing a position of the first guide rod.

[0012] Further, the cap pressing detection mechanism comprises a second sliding frame vertically sliding above the conveying chain, a plurality of second guide sleeves are fixedly arranged on the second sliding frame, a second guide rod is coaxially arranged in each second guide sleeve, the second guide rod is in sliding connection with the second guide sleeve, and an optical sensor for sensing the position of the second guide rod is arranged above each second guide sleeve.

[0013] Further, the tray loading mechanism comprises a material taking unit, a material conveying unit, a material loading unit and a tray supply unit, the material taking unit is arranged above the conveying chain, the material conveying unit is located between the material taking unit and the material loading unit, the material conveying unit is used for transferring the micro-tube on the material taking unit to the material loading unit, and the material loading unit is used for moving the micro-tube to the tray of the tray supply unit.

[0014] Further, the tray supply unit comprises a workbench, a tray warehouse for storing trays, a first push plate and a second push plate, the workbench is located on one side of the rack, the tray warehouse is fixedly arranged on the top of the workbench, the first push plate is slidingly arranged at the bottom of the tray warehouse, the second push plate is slidingly arranged on the top of the workbench, and the sliding directions of the first push plate and the second push plate are perpendicular.

[0015] The beneficial effects of the present application are:

[0016] The micro-tube automatic production device of the present application realizes the full-automatic production of micro-tubes, has complete functions, can automatically complete a series of work such as micro-tube feeding, drying and assembling and automatic tray loading, has high automation degree in the whole process, has reasonable device structure design, has high operation accuracy, has high efficiency, can greatly improve the production efficiency of micro-tubes, saves manpower and material resources, and reduces production cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the three-dimensional structure of the present application;

[0018] Figure 2 is a schematic view of the three-dimensional structure of the ring conveying mechanism of the present application;

[0019] Figure 3 is a sectional view of the ring conveying mechanism of the present application Figure 1 ;

[0020] Figure 4 is a sectional view of the ring conveying mechanism of the present application Figure 2 ;

[0021] Figure 5 is a schematic view of the three-dimensional structure of the test tube rack of the present application Figure 1 ;

[0022] Figure 6 is a schematic view of the three-dimensional structure of the test tube rack of the present application Figure 2 ;

[0023] Figure 7 The schematic diagram of the three-dimensional structure of the test tube filling mechanism of the present application;

[0024] Figure 8 The schematic diagram of the three-dimensional structure of the test tube distribution slider, the lifting unit and the test tube clamping unit in the test tube filling mechanism of the present application;

[0025] Figure 9 The schematic diagram of the three-dimensional structure of the anti-coagulation spraying mechanism of the present application;

[0026] Figure 10 The schematic diagram of the three-dimensional structure of the coagulation promoting spraying mechanism of the present application;

[0027] Figure 11 The schematic diagram of the three-dimensional structure of the coagulation promoting spraying mechanism of the present application without pressure tank;

[0028] Figure 12 The schematic diagram of the three-dimensional structure of the drying mechanism of the present application;

[0029] Figure 13 The schematic diagram of the three-dimensional structure of the cap filling mechanism of the present application;

[0030] Figure 14 The schematic diagram of the three-dimensional structure of the cap distribution slider, the cap adsorption unit and the cap clamping unit in the cap filling mechanism of the present application;

[0031] Figure 15 The schematic diagram of the three-dimensional structure of the cap pressing mechanism of the present application;

[0032] Figure 16 The schematic diagram of the three-dimensional structure of the cap presence / absence detection mechanism of the present application;

[0033] Figure 17 The schematic diagram of the three-dimensional structure of the rejection mechanism of the present application;

[0034] Figure 18 The schematic diagram of the three-dimensional structure of the tray loading mechanism of the present application;

[0035] Figure 19 The schematic diagram of the three-dimensional structure of the material taking unit in the tray loading mechanism of the present application;

[0036] Figure 20 The schematic diagram of the three-dimensional structure of the material transporting unit in the tray loading mechanism of the present application;

[0037] Figure 21 The schematic diagram of the three-dimensional structure of the material loading unit in the tray loading mechanism of the present application;

[0038] Figure 22Fig. 1 is a schematic diagram of the tray supply unit in the tray loading mechanism of the present application Figure 1 ;

[0039] Figure 23 Fig. 1 is a schematic diagram of the tray supply unit in the tray loading mechanism of the present application Figure 2 .

[0040] BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 1. frame

[0042] 2. ring-shaped conveying mechanism; 21. conveying chain; 22. driving sprocket; 23. driven sprocket; 24. conveying rail

[0043] 25. driving unit; 251. driving motor; 252. cam divider; 26. cover plate

[0044] 27. test tube rack; 271. test tube dropping hole; 272. connecting block; 273. fixing block; 274. connecting rod; 275. spring; 276. guide wheel

[0045] 28. support rack; 29. support wheel

[0046] 3. test tube loading mechanism; 31. test tube shaking disc; 32. test tube conveying passage; 33. test tube loading rack

[0047] 34. test tube distributing slider; 341. test tube placing hole

[0048] 35. jacking unit; 351. jacking carriage; 3511. jacking column; 352. jacking cylinder

[0049] 36. test tube clamping unit; 361. test tube clamping air claw; 362. first lifting cylinder; 363. first horizontal moving cylinder; 364. first horizontal moving carriage

[0050] 37. test tube distributing cylinder; 38. test tube clamping cylinder

[0051] 4. anticoagulant spraying mechanism; 41. striker valve; 42. first longitudinal moving cylinder; 43. second horizontal moving cylinder; 44. second lifting cylinder; 45. first longitudinal moving carriage; 46. first lifting rack; 47. first valve body fixing rack

[0052] 5. coagulation promoting spraying mechanism; 51. pressure tank; 52. pinch valve; 53. spraying rack; 54. third lifting cylinder; 55. second lifting rack; 56. second longitudinal moving cylinder; 57. fixing seat; 58. third horizontal moving cylinder; 59. second valve body fixing rack

[0053] 6, drying mechanism; 61, drying support; 62, fourth lifting cylinder; 63, third lifting frame; 64, drying cavity; 65, air pipe; 66, drying needle;

[0054] 7, cap filling mechanism; 71, cap vibration disc; 72, cap conveying channel; 73, cap distribution slider;

[0055] 74, cap adsorption unit; 741, fifth lifting cylinder; 742, fourth lifting frame; 743, fourth transverse movement cylinder; 744, second transverse movement carriage; 745, vacuum adsorber;

[0056] 75, cap clamping unit; 751, first clamping jaw; 752, second clamping jaw; 753, clamping jaw fixing frame; 754, first opening and closing cylinder; 755, second opening and closing cylinder;

[0057] 76, cap filling frame; 77, cap distribution cylinder;

[0058] 8, cap pressing mechanism; 81, pressing frame; 82, cap pressing cylinder; 83, pressing rod; 84, pressing seat;

[0059] 9, cap presence / absence detection mechanism; 91, first sliding frame; 92, first guide sleeve; 93, first guide rod; 94, proximity switch; 95, first detection frame; 96, sixth lifting cylinder;

[0060] 10, cap pressing detection mechanism;

[0061] 11, rejection mechanism; 111, rejection fixing frame; 112, fifth transverse movement cylinder; 113, third transverse movement carriage; 114, seventh lifting cylinder; 115, fifth lifting frame; 116, clamping air claw;

[0062] 12, tray loading mechanism;

[0063] 121, material taking unit; 1211, material taking frame; 1212, sixth transverse movement cylinder; 1213, fourth transverse movement carriage; 1214, eighth lifting cylinder; 1215, material taking air claw;

[0064] 122, material conveying unit; 1221, material conveying frame; 1222, seventh transverse movement cylinder; 1223, fifth transverse movement carriage; 1224, pipe placing frame;

[0065] 123, material loading unit; 1231, material loading frame; 1232, sixth transverse movement carriage; 1233, ninth lifting cylinder; 1234, first baffle; 1235, tenth lifting cylinder; 1236, pipe conveying frame; 1237, eleventh lifting cylinder; 1238, second baffle;

[0066] 124 tray supply unit; 1241 worktable; 1242 tray magazine; 1243 first push plate; 1244 second push plate; 1245 third longitudinal moving cylinder; 1246 eighth horizontal moving cylinder; 1247 guide plate; 1248 twelfth lifting cylinder; 1249 tray;

[0067] 13 micropipette; 14 cap; 15 control device. DETAILED DESCRIPTION

[0068] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. In the following description, a large number of specific details are set forth in order to give a thorough understanding of the present application, but the present application can also be implemented in other manners different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0069] As Figure 1 shown is an automatic micropipette production device, comprising a rack 1, an annular conveying mechanism 2 rotatably arranged on the rack 1, a plurality of test tube racks 27 for loading micropipettes 13 fixedly arranged on the annular conveying mechanism 2, a test tube loading mechanism 3, a spraying mechanism, a drying mechanism 6, a cap loading mechanism 7, a cap pressing mechanism 8, a cap presence / absence detection mechanism 9, a cap pressing detection mechanism 10, a rejection mechanism 11 and a tray loading mechanism 12 arranged in sequence along the conveying path of the annular conveying mechanism 2, and the test tube loading mechanism 3 and the tray loading mechanism 12 are arranged adjacently.

[0070] As Figures 2-4 shown is a structural schematic view of the annular conveying mechanism, the annular conveying mechanism 2 comprises a conveying chain 21 arranged above the rack 1, a driving sprocket 22, a driven sprocket 23, a conveying guide rail 24 and a driving unit 25 arranged in the rack 1. The driving sprocket 22 and the driven sprocket 23 are rotatably arranged at two ends above the rack 1 respectively, the conveying chain 21 is sleeved outside the driving sprocket 22 and the driven sprocket 23, and the conveying chain 21 is a ring-closed chain and is sleeved outside the driving sprocket 22 and the driven sprocket 23. In this embodiment, a plurality of cover plates 26 are fixedly installed on the top of the rack 1, the plurality of cover plates 26 are sleeved outside the conveying chain 21, the driving sprocket 22 and the driven sprocket 23, and play a role of dust prevention and protection.

[0071] As Figure 3As shown, the drive unit 25 includes a drive motor 251 and a cam divider 252 arranged in the rack 1. To reduce the rotational speed of the drive motor 251 and increase the torque, a frequency converter is arranged between the drive motor 251 and the cam divider 252 and connected through the frequency converter. The output end of the cam divider 252 is fixedly connected with the driving sprocket 22. When the drive motor 251 is started, the output shaft of the drive motor 251 rotates and drives the cam divider 252 and the driving sprocket 22 to rotate synchronously. The driving sprocket 22 rotates and drives the driven sprocket 23 to rotate synchronously through the conveying chain 21. In the embodiment, the drive motor 251 is preferably a three-phase motor, and the cam divider 252 is a five-division divider, and the dynamic-static ratio is 1:3, that is, when the drive motor 251 rotates without stopping, the cam divider 252 moves intermittently, and in one rotation period, the movement time of the index plate is 1:3 of the stop time. To ensure smooth operation of the conveying process and better control the operation rhythm, the three-phase drive motor 251 is adjusted in overall operation speed through the frequency converter. The control device 15 is further included, which is used to control the orderly operation of each mechanism according to the feedback data of each mechanism in the production process.

[0072] In the embodiment, 22 test tube racks 27 are fixedly installed on the conveying chain 21, and one test tube rack 27 is installed every 16 chain links. Each test tube rack 27 can accommodate ten microtubes 13 at a time. The number of test tube racks 27 installed on the conveying chain 21 and the distance between the test tube racks 27 can be designed according to actual needs, which is not limited herein.

[0073] As shown in FIGS. 1, 2 and 3, the conveying device 2 includes a conveying chain 21, a conveying guide rail 24, a drive unit 25, a control device 15 and a test tube rack 27. Figure 5 and Figure 6 As shown, it is a structural schematic diagram of the test tube rack of the present application. The test tube rack 27 is used to carry and place the microtubes 13. One end of the test tube rack 27 is fixedly connected with the conveying chain 21, and the other end is abutted with the conveying guide rail 24. The top end of the test tube rack 27 is provided with a plurality of tube falling holes 271 for installing the microtubes 13. The number of the tube falling holes 271 is ten, and the ten tube falling holes 271 are uniformly arranged along the length direction of the test tube rack 27, so that one test tube rack 27 can accommodate ten microtubes 13 at a time. The tube falling hole 271 is a blind hole with an open upper part, and the inner diameter of the tube falling hole 271 is slightly larger than the outer diameter of the microtube 13, so that the microtube 13 can be more easily inserted into the tube falling hole 271. When the cap 14 is pressed and combined with the microtube 13, there is a small angle of relative rotation between the two. Therefore, a pressure bearing is coaxially embedded at the bottom of the tube falling hole 271 to hold the microtube 13, so as to reduce the rotational friction of the microtube 13 when the cap 14 is pressed and combined.

[0074] In the embodiment, as shown in FIGS. 1, 2 and 3, the conveying device 2 includes a conveying chain 21, a conveying guide rail 24, a drive unit 25, a control device 15 and a test tube rack 27. Figure 5As shown, the top of the test tube rack 27 is provided with a connecting block 272 fixedly connected with the chain plate of the conveying chain 21, and the top of the connecting block 272 is provided with a connecting hole fixedly connected with the chain plate, and the position and size of the connecting hole are correspondingly arranged with the chain plate. The two ends of the connecting block 272 are symmetrically provided with a fixed block 273, and the fixed block 273 is fixedly arranged at the left and right sides of the top of the test tube rack 27. The two fixed blocks 273 are fixed through two parallel connecting rods 274, and the two connecting rods 274 penetrate the connecting block 272 located between the two fixed blocks 273, that is, the connecting rod 274 is arranged in the connecting block 272. The outer side of the connecting rod 274 is further sleeved with four springs 275, and the four springs 275 are respectively located between the fixed block 273 and the connecting block 272. The arrangement of the connecting block 272, the two connecting rods 274 and the four springs 275 makes the connecting block 272 only reciprocate along the axial direction of the connecting rod 274, which is used for self-adjusting the position of the connecting block 272 and plays a self-adapting role.

[0075] As shown in Figure 6 , the bottom of the connecting block 272 is rotatably provided with three guide wheels 276, and the three guide wheels 276 are rotatably abutted with the two sides of the conveying guide rail 24, which plays a limiting and guiding role. As shown in Figure 4 , the conveying guide rail 24 is of an I-shaped structure, two guide wheels 276 are located on the inner side of the conveying guide rail 24, and the other guide wheel 276 is located on the outer side of the conveying guide rail 24. The three guide wheels 276 are rotatably abutted with the corresponding side of the conveying guide rail 24, thereby playing a limiting and guiding role, and the rolling connection between the guide wheel 276 and the conveying guide rail 24 ensures the smoothness of the test tube rack 27 during conveying. The guide wheel 276 located on the outer side of the conveying guide rail 24 is slidingly connected with the test tube rack 27, and the spring 275 is installed between the guide wheel 276 shaft and the inner wall of the cavity of the test tube rack 27. When the spring 275 is compressed or stretched, the guide wheel 276 moves away from or approaches the conveying guide rail 24. The outer side guide wheel 276 can move away from or approach the conveying guide rail 24, so as to automatically adjust the center distance between the three guide wheels 276, thereby ensuring that the test tube rack 27 fixed on the conveying chain 21 will not be jammed between the guide wheel 276 and the conveying guide rail 24 during movement along the conveying guide rail 24, and the movement is more flexible.

[0076] As shown in Figure 2 and Figure 4As shown, two support frames 28 are fixedly installed on the top of the frame 1. The two support frames 28 are arranged along the width direction of the frame 1 and are located on the outside of the conveyor chain 21. The length direction of the support frame 28 is parallel to the length direction of the frame 1. Multiple support wheels 29 are rotatably installed on the top of the support frame 28, and the multiple support wheels 29 are evenly distributed along the length direction of the support frame 28. The support wheels 29 are used to support the bottom of the test tube rack 27. The outer circumferential surface of the support wheel 29 rotates and abuts against the bottom of the test tube rack 27, so that the test tube rack 27 on the conveyor chain 21 runs smoothly during the conveying process and prevents the test tube rack 27 from tilting and collapsing during the conveying process.

[0077] The drive motor 251 is started. While the drive motor 251 rotates continuously, the cam divider 252 performs intermittent motion. Within one rotation cycle, the ratio of the movement time to the rest time of the indexing plate on the cam divider 252 is 1:3. To ensure smooth operation of the conveying process and better control the operating rhythm, the overall operating speed of the three-phase drive motor 251 is adjusted via a frequency converter to adjust the conveying rhythm of the test tube rack 27 on the conveyor chain 21.

[0078] like Figure 7 The diagram shows the test tube filling mechanism 3, which is used to fill micro-tubes 13 without caps 14 into the test tube rack 27. The test tube filling mechanism 3 includes a test tube vibrating plate 31, a test tube conveying channel 32, a test tube dispensing slider 34, a lifting unit 35, and a test tube clamping unit 36.

[0079] The test tube vibrating plate 31 is located on one side of the frame 1. It is used to neatly arrange the micro-tubes 13 without caps 14 and output them through the test tube delivery channel 32. The structure of the test tube vibrating plate 31 is prior art and will not be described in detail here. The test tube vibrating plate 31 uses vibration to arrange the micro-tubes 13 upright and feed them into the test tube delivery channel 32. In this embodiment, a larger capacity test tube vibrating plate 31 is preferred to extend the time interval for manually adding micro-tubes 13 into the test tube vibrating plate 31, thereby improving productivity.

[0080] The inlet end of the test tube transport channel 32 is connected to the outlet end of the test tube vibrating plate 31, and the outlet end of the test tube transport channel 32 is connected to the test tube dispensing slider 34. The test tube transport channel 32 is a five-channel design, and the distance between two adjacent channels is twice the distance between two adjacent microtubes 13 on the test tube rack 27.

[0081] like Figure 8As shown, the test tube dispensing slider 34 has multiple placement holes 341 for accommodating micro-tubes 13. In this embodiment, there are ten placement holes 341, which are evenly distributed along the length of the test tube dispensing slider 34. The center distance between two adjacent placement holes 341 is half the distance between two adjacent conveying channels in the test tube conveying channel 32. Five test tubes are arranged in a row in the test tube conveying channel 32. After passing through the five-channel test tube conveying channel 32, the micro-tubes 13 in the test tube vibrating plate 31 enter the test tube dispensing slider 34 in a single pass. The five micro-tubes 13 entering the test tube dispensing slider 34 are spaced apart, that is, there is a space between two adjacent micro-tubes 13.

[0082] A test tube loading rack 33 is fixedly installed on the top of the frame 1, and a test tube dispensing cylinder 37 is fixedly installed on the test tube loading rack 33. A test tube dispensing cylinder 37 is fixedly installed below a test tube dispensing slider 34. The movable end of the test tube dispensing cylinder 37 is fixedly connected to the bottom of the test tube dispensing slider 34 and drives the test tube dispensing slider 34 to slide back and forth along the width of the conveying channel. A test tube clamping cylinder 38 is also provided on the opposite side of the test tube dispensing cylinder 37. The test tube clamping cylinder 38 works in conjunction with the test tube dispensing cylinder 37 to drive the test tube dispensing slider 34 to move left and right along the length of the frame 1. The distance the test tube dispensing slider 34 moves is the same as the distance between two adjacent placement holes 341, so that the micro-tubes 13 conveyed twice by the test tube conveying channel 32 can accurately fall into the corresponding placement holes 341. Specifically, as shown... Figure 7 As shown, the first five micro-tubes 13 delivered by the test tube delivery channel 32 fall into the 1st, 3rd, 5th, 7th, and 9th placement holes 341 of the test tube dispensing slider 34, respectively. Then, the test tube dispensing cylinder 37 drives the test tube dispensing slider 34 to move to the left a predetermined distance (the distance between two adjacent placement holes 341). The second five micro-tubes 13 delivered by the test tube delivery channel 32 fall into the 2nd, 4th, 6th, 8th, and 10th placement holes 341 of the test tube dispensing slider 34, respectively, so that all ten micro-tubes 13 fall into the ten placement holes 341 of the test tube dispensing slider 34.

[0083] like Figure 8As shown, the lifting unit 35 is vertically slidably disposed below the test tube dispensing slider 34. The lifting unit 35 is used to lift multiple test tubes inside the test tube dispensing slider 34 upwards. The lifting unit 35 includes a lifting slide 351 and a lifting cylinder 352. The lifting cylinder 352 is vertically and fixedly disposed on the test tube loading rack 33 above the frame 1. The movable end of the lifting cylinder 352 is positioned upwards and fixedly connected to the bottom end of the lifting slide 351. The lifting slide 351 is horizontally disposed, and ten lifting columns 3511 are fixedly disposed on the top of the lifting slide 351. The ten lifting columns 3511 are evenly distributed along the length of the lifting slide 351. The number and position of the lifting columns 3511 correspond to the drop holes 271 on the test tube rack 27, and the center distance between two adjacent lifting columns 3511 is the same as the center distance between two adjacent drop holes 271 on the test tube rack 27. The lifting column 3511 is embedded inside the micro-volume tube 13, with the top of the lifting column 3511 abutting against the bottom of the micro-volume tube 13. The lifting cylinder 352 raises and lowers, causing the lifting slide 351 to move up and down vertically, which in turn causes the lifting column 3511 to push the micro-volume tube 13 inside the test tube dispensing slider 34 upward to the test tube clamping unit 36.

[0084] like Figure 8 As shown, the test tube clamping unit 36 ​​is located above the test tube dispensing slider 34. The test tube clamping unit 36 ​​is used to clamp multiple micro-tubes 13 lifted by the lifting unit 35 into the test tube rack 27 fixed on the conveyor chain 21. The test tube clamping unit 36 ​​includes a test tube clamping gripper 361, a first lifting cylinder 362, a first transverse cylinder 363, and a first transverse slide 364. The test tube clamping gripper 361 is existing technology and any commercially available product can be selected, so it will not be described in detail here. The first transverse cylinder 363 is fixedly installed on the test tube filling rack 33 above the frame 1. The first transverse cylinder 363 is horizontally set, and the movable end of the first transverse cylinder 363 is fixedly connected to the first transverse slide 364. The extension and retraction of the first transverse cylinder 363 drives the first transverse slide 364 to move back and forth along the width direction of the frame 1. The first transverse slide 364 is horizontally slidably mounted on the test tube loading rack 33 above the frame 1 via a linear guide rail. The first lifting cylinder 362 is vertically mounted, with its fixed end fixed to the top of the first transverse slide 364 and its movable end pointing vertically downward. The movable end of the first lifting cylinder 362 is fixedly connected to the top of the test tube gripper 361, which is located above the lifting slide 351 and the test tube dispensing slider 34. The extension and retraction of the first lifting cylinder 362 causes the test tube gripper 361 to move up and down above the lifting slide 351. After the test tube gripper 361 grips all the microtubes 13 at once, the first lifting cylinder 362 moves the microtubes 13 upward, and the first transverse cylinder 363 moves the microtubes 13 into the test tube rack 27 on the conveyor chain 21.

[0085] After the test tube filling mechanism 3 neatly arranges the micro-tubes 13 in the test tube vibrating plate 31 and clamps them into the test tube rack 27 on the conveying chain 21, the test tube rack 27 is continued to be conveyed forward by the conveying chain 21 to the area directly below the spraying mechanism, where the spraying mechanism adds anti-coagulant or coagulant to the micro-tubes 13 on the test tube rack 27.

[0086] The spraying mechanism is an anti-condensing spraying mechanism 4 and / or a condensing-promoting spraying mechanism 5. The anti-condensing spraying mechanism 4 or the condensing-promoting spraying mechanism 5 can be installed on the frame 1 as needed, or both can be installed.

[0087] like Figure 9 As shown, the anticoagulant spraying mechanism 4 includes a pressure tank (not shown) fixedly installed above the frame 1 and a needle valve 41 for injecting anticoagulant into the micro-tube 13. The outlet end of the pressure tank is connected to the inlet end of the needle valve 41 through a pipeline.

[0088] The anti-condensation spraying mechanism 4 also includes a first longitudinal movement cylinder 42, a second transverse movement cylinder 43, and a second lifting cylinder 44. The first longitudinal movement cylinder 42 is fixedly mounted on the top of the frame 1 and is horizontally positioned, with the axis of its movable rod parallel to the length direction of the frame 1. The movable end of the first longitudinal movement cylinder 42 is fixedly connected to a first longitudinal movement slide 45, and the bottom of the first longitudinal movement slide 45 is slidably connected to a linear guide rail fixed to the top of the frame 1. The length direction of the linear guide rail is parallel to the length direction of the frame 1. The extension and retraction of the first longitudinal movement cylinder 42 drives the first longitudinal movement slide 45 to reciprocate along the length direction of the linear guide rail. The second lifting cylinder 44 is fixedly mounted on the first longitudinal movement slide 45 and is vertically positioned, with its movable end vertically upward and fixedly connected to a first lifting frame 46. The extension and retraction of the second lifting cylinder 44 drives the first lifting frame 46 to move up and down. The second transverse cylinder 43 is fixedly mounted on the first lifting frame 46. The second transverse cylinder 43 is horizontally positioned and perpendicular to the first longitudinal cylinder 42. The movable end of the second transverse cylinder 43 is fixedly connected to a first valve body fixing frame 47 for fixing the striker valve 41. Two striker valves 41 are fixedly mounted on the first valve body fixing frame 47.

[0089] The second lifting cylinder 44 drives the impact needle valve 41 to move vertically up and down to a specified height. The second transverse cylinder 43 drives the impact needle valve 41 to move along the width direction of the frame 1 to above the micro-tube 13 on the conveyor chain 21. The first longitudinal cylinder 42 drives the impact needle valve 41 to move along the length direction of the frame 1 to the position of the micro-tube 13, so that the central axis of the impact needle valve 41 is aligned with the axis of the micro-tube 13. The impact needle valve 41 adds anticoagulant to the micro-tube 13. The extension and retraction of the first longitudinal cylinder 42 drives the two impact needle valves 41 to fix and sequentially add liquid to the ten micro-tubes 13 in the test tube rack 27.

[0090] After the anticoagulant spraying mechanism 4 adds anticoagulant to the micro-tubes 13 on the test tube rack 27, the test tube rack 27 is continued to be conveyed forward by the conveyor chain 21 to the bottom of the drying mechanism 6, where the drying mechanism 6 dries the moisture in the anticoagulant in the micro-tubes 13 on the test tube rack 27.

[0091] like Figure 10 and Figure 11 As shown, the coagulant spraying mechanism 5 includes a pressure tank 51 mounted above the frame 1 and a clamp valve 52 for injecting coagulant into the micro-tube 13. The outlet end of the pressure tank 51 is connected to the inlet end of the clamp valve 52 via a pipeline. The coagulant is placed inside the pressure tank 51, which is then sealed and pressurized by venting. The coagulant is forced out and flows through the clamp valve 52 via the pipeline. The clamp valve 52 controls the amount of liquid added by controlling the on / off time of the pipeline. Finally, the coagulant is sprayed into the test tube through the clamp valve 52.

[0092] The coagulation-promoting spraying mechanism 5 also includes a spraying frame 53 fixedly connected to the top of the frame 1. A third lifting cylinder 54 is fixedly mounted on the spraying frame 53. The third lifting cylinder 54 is vertically arranged, with its movable end vertically upward and fixedly connected to a second lifting frame 55. A second longitudinal movement cylinder 56 is fixedly mounted on the second lifting frame 55. The second longitudinal movement cylinder 56 is horizontally arranged, with the axis of its movable rod parallel to the length direction of the frame 1. The movable end of the second longitudinal movement cylinder 56 is connected to a third transverse movement cylinder 58 via a fixed seat 57. The third transverse movement cylinder 58 is horizontally arranged and perpendicular to the second longitudinal movement cylinder 56. A second valve body fixing frame 59 is fixedly connected to the movable end of the third transverse movement cylinder 58. Multiple clamp valves 52 are fixedly connected to the second valve body fixing frame 59. In this embodiment, there are five clamp valves 52, which are evenly distributed along the length direction of the second valve body fixing frame 59. The position of the clamp valve 52 corresponds to the position of the drop hole 271 on the test tube rack 27, and the center distance between two adjacent clamp valves 52 is equal to the center distance between two adjacent drop holes 271 on the test tube rack 27.

[0093] The third lifting cylinder 54 extends and retracts, causing the clamp valve 52 to move up and down to a specified height. The third transverse cylinder 58 moves the clamp valve 52 along the width of the frame 1, so that the clamp valve 52 moves above the micro-inlet tube 13. The second longitudinal cylinder 56 moves the clamp valve 52 along the length of the frame 1, so that the center of the clamp valve 52 is aligned with the center of the micro-inlet tube 13, thereby allowing the clamp valve 52 to inject the coagulant into the micro-inlet tube 13.

[0094] After the coagulation spraying mechanism 5 adds coagulation accelerator to the micro-tubes 13 on the test tube rack 27, the test tube rack 27 is continued to be conveyed forward by the conveying chain 21 to the bottom of the drying mechanism 6, where the drying mechanism 6 dries the moisture in the coagulation accelerator in the micro-tubes 13 on the test tube rack 27.

[0095] like Figure 12 As shown, the drying mechanism 6 includes a drying support 61 fixedly mounted on the top of the frame 1. A fourth lifting cylinder 62 is fixedly mounted on the drying support 61. The fourth lifting cylinder 62 is vertically positioned, with its movable end pointing vertically upward and fixedly connected to a third lifting frame 63. A cuboid-shaped drying chamber 64 is fixedly connected to the third lifting frame 63. A heater and a temperature sensor are installed inside the drying chamber 64. The temperature sensor is connected to a temperature controller to achieve temperature measurement and control. Multiple air ducts 65 are connected to the top of the drying chamber 64 and are connected to a high-pressure blower. Multiple drying needles 66 are connected to the bottom of the drying chamber 64. The number and position of the drying needles 66 correspond to the tube drop holes 271 on the test tube rack 27.

[0096] When the test tube rack 27 is conveyed to the area directly below the drying needle 66 via the conveyor chain 21, the fourth lifting cylinder 62 descends, causing the drying needle 66 to descend and insert into the microtube 13. The high-pressure blower blows air into the drying chamber 64 through the air duct 65. The air is heated by the heater and then diverted into the drying needle 66. The hot air sprayed from the drying needle 66 dries the moisture in the coagulant or anticoagulant in the microtube 13. As the fourth lifting cylinder 62 moves up and down, the drying needle 66 enters the test tube to achieve the effect of drying the reagent.

[0097] like Figure 1 As shown, in this embodiment, a total of four drying mechanisms 6 are provided, with two drying mechanisms 6 forming a group, for a total of two groups of drying stations. Each drying mechanism 6 adopts a PTC heater heating method, which greatly shortens the drying time and improves the working efficiency of the entire production unit.

[0098] After the drying mechanism 6 dries the inside of the microtubes 13 on the test tube rack 27, the test tube rack 27 is conveyed forward by the conveyor chain 21 to the bottom of the cap filling mechanism 7, where the cap filling mechanism 7 fills the cap 14 on the top of the microtubes 13.

[0099] like Figure 13As shown, the cap filling mechanism 7 includes a cap vibrating plate 71, a cap conveying channel 72, a cap dispensing slider 73, a cap adsorption unit 74, and a cap clamping unit 75. The cap vibrating plate 71 is located on the other side of the frame 1. It is used to neatly arrange the caps 14 and output them through the cap conveying channel 72. The cap vibrating plate 71 and the test tube vibrating plate 31 have similar structures and are existing technologies, so they will not be described in detail here. The cap vibrating plate 71 uses vibration to sort the caps 14 with the larger end facing down and feeds them into the cap conveying channel 72. The cap conveying channel 72 has an air blowing function. In this embodiment, a larger capacity cap vibrating plate 71 is preferred to extend the time interval between manually adding caps 14 to the cap vibrating plate 71 and improve productivity. The inlet end of the cap conveying channel 72 is connected to the outlet end of the cap vibrating plate 71, and the outlet end of the cap conveying channel 72 is connected to the cap dispensing slider 73. The cap delivery channel 72 is a five-channel design, and the center distance between two adjacent channels is twice the center distance between two adjacent microtubes 13 on the test tube rack 27.

[0100] like Figures 13-14 As shown, the cap filling mechanism 7 also includes a cap filling frame 76 fixedly mounted on the top of the frame 1, a cap dispensing slider 73 slidably mounted on the cap filling frame 76, and a cap dispensing cylinder 77 fixedly mounted below the cap dispensing slider 73. In this embodiment, the cap dispensing cylinder 77 is fixedly mounted on the cap filling frame 76, and the movable end of the cap dispensing cylinder 77 is fixedly connected to the bottom of the cap dispensing slider 73 and drives the cap dispensing slider 73 to reciprocate along the width direction of the cap conveying channel 72. The cap dispensing slider 73 has multiple arc-shaped grooves, which are used to place caps 14. The number and position of the arc-shaped grooves correspond to the tube drop holes 271 on the test tube rack 27. In this embodiment, the cap dispensing slider 73 has ten arc-shaped grooves. The ten arc-shaped grooves are evenly distributed along the length of the cap dispensing slider 73. The center distance between two adjacent arc-shaped grooves is equal to the center distance between two adjacent tube drop holes 271 on the test tube rack 27. The cap dispensing slider 73 can accommodate ten caps 14 at a time.

[0101] The cap adsorption unit 74 is located above the cap dispensing slider 73. The cap adsorption unit 74 is used to adsorb the caps 14 output from the cap vibrating plate 71 and move them to the top of the micro-tubes 13 of the test tube rack 27 fixed on the conveyor chain 21. The cap adsorption unit 74 includes a fifth lifting cylinder 741 fixedly mounted on the cap filling rack 76. The fifth lifting cylinder 741 is vertically positioned, with its movable end vertically upward and fixedly connected to a fourth lifting frame 742. The extension and retraction of the fifth lifting cylinder 741 drives the fourth lifting frame 742 to move up and down vertically. A fourth transverse cylinder 743 is fixedly mounted on the fourth lifting frame 742. The fourth transverse cylinder 743 is horizontally positioned, with its movable end fixedly connected to a second transverse slide 744. The second transverse slide 744 is equipped with multiple vacuum adsorbers 745 for adsorbing the caps 14, and the multiple vacuum adsorbers 745 are evenly distributed along the length of the second transverse slide 744. In this embodiment, the number and position of the vacuum adsorbers 745 correspond to the tube drop holes 271 on the test tube rack 27. Specifically, there are ten vacuum adsorbers 745, and the center distance between two adjacent vacuum adsorbers 745 is the same as the center distance between two adjacent tube drop holes 271 on the test tube rack 27.

[0102] The cap clamping unit 75 includes a first jaw 751 and a second jaw 752, which are arranged above the conveyor chain 21 and open and close relative to each other. The cap filling mechanism 7 also includes a jaw fixing frame 753 arranged opposite to the cap filling frame 76. The cap filling frame 76 and the jaw fixing frame 753 are respectively arranged on the outer and inner sides of the conveyor chain 21. The jaw fixing frame 753 is fixed to the top of the frame 1. A first opening and closing cylinder 754 is fixed on the jaw fixing frame 753, and a second opening and closing cylinder 755 is fixed on the cap filling frame 76. Both the first opening and closing cylinder 754 and the second opening and closing cylinder 755 are horizontally arranged. The movable end of the first opening and closing cylinder 754 is fixedly connected to the first jaw 751, and the movable end of the second opening and closing cylinder 755 is fixedly connected to the second jaw 752. Both the first jaw 751 and the second jaw 752 have semi-circular grooves for accommodating the cap 14, with the inner diameter of the grooves slightly larger than the outer diameter of the cap 14. The first opening / closing cylinder 754 and the second opening / closing cylinder 755 extend, causing the first jaw 751 and the second jaw 752 to move towards the center, closing them and forming a complete circular groove so that the cap 14 is placed within it. The first opening / closing cylinder 754 and the second opening / closing cylinder 755 retract, causing the first jaw 751 and the second jaw 752 to move outwards, opening them for the next process.

[0103] When the cap filling mechanism 7 is working, the cap vibrating plate 71 uses vibration to screen and arrange the caps 14 with the large end facing down into the cap conveying channel 72. The caps 14 are then conveyed to the cap distributing slider 73 through the cap conveying channel 72. The cap distributing slider 73 is moved to send ten caps 14 into the cap distributing slider 73 in two batches. The cap adsorption unit 74 transfers all ten caps 14 to the top of the cap clamping unit 75. The first jaw 751 and the second jaw 752 of the cap clamping unit 75 close. The cap adsorption unit 74 releases the ten caps 14 and places them in the cap clamping unit 75 for the next process.

[0104] The top of the micro-tube 13 on the test tube rack 27 after passing through the capping mechanism 7 is covered with a cap 14, but at this time the cap 14 is not tightly closed with the micro-tube 13. The micro-tube 13 and the cap 14 on the test tube rack 27 are continued to be conveyed forward by the conveying chain 21 and conveyed to the area directly below the cap pressing mechanism 8, where the cap pressing mechanism 8 presses the cap 14 on the micro-tube 13 on the test tube rack 27.

[0105] like Figure 15 As shown, there are two cap clamping mechanisms 8, which are arranged along the length of the frame 1. The cap clamping mechanism 8 also includes a clamping frame 81 fixed to the top of the frame 1, and the two cap clamping mechanisms 8 are fixed to the upper part of the clamping frame 81.

[0106] like Figure 15 As shown, each cap clamping mechanism 8 includes multiple cap clamping cylinders 82 fixedly mounted above the conveyor chain 21, with each cap clamping cylinder 82 arranged vertically downwards. The fixed end of the cap clamping cylinder 82 is fixed to the top of the clamping frame 81, and its movable end is arranged vertically downwards. A clamping rod 83 is fixedly connected to the movable end of the cap clamping cylinder 82, and a clamping seat 84 for clamping the cap 14 is rotatably mounted at the bottom end of the clamping rod 83. A bearing is installed between the clamping seat 84 and the clamping rod 83 to make the rotation of the clamping seat 84 more flexible. Considering the internal structural characteristics of the cap 14 and the micro-tube 13, the cap 14 will rotate slightly during clamping. Therefore, the clamping seat 84 has a self-rotating function, which can reduce the rotational friction of the micro-tube 13 and make the clamping between the micro-tube 13 and the cap 14 easier.

[0107] In this embodiment, each cap clamping mechanism 8 includes five independently controlled cap clamping cylinders 82. The center distance between two adjacent cap clamping cylinders 82 is twice the center distance between the two tube drop holes 271 on the test tube rack 27. The conveyor chain 21 moves the microtubes 13 and caps 14 on the test tube rack 27 to below the first cap clamping mechanism 8. The cap clamping cylinders 82 on the cap clamping mechanism 8 descend, driving the clamping rod 83 and clamping seat 84 downward to the cap 14 covering the top of the microtube 13, and continue to press the cap 14 downward, so that the cap 14 tightly covers the top of the microtube 13. Among them, the first cap clamping mechanism 8 clamps the 1st, 3rd, 5th, 7th and 9th caps 14 in the test tube rack 27. Afterwards, the conveyor chain 21 drives the test tube rack 27 forward a predetermined distance until it reaches directly below the second cap clamping mechanism 8. The cap clamping cylinder 82 in the second cap clamping mechanism 8 descends, thereby driving the clamping rod 83 and clamping seat 84 to move downward and clamp the cap 14 onto the top of the microtube 13. The second cap clamping mechanism 8 clamps the 2nd, 4th, 6th, 8th, and 10th caps 14 in the test tube rack 27. The two cap clamping mechanisms 8 clamp the five caps 14 in a staggered manner to prevent accidental clamping of adjacent caps 14 during the clamping process. Since each cap clamping cylinder 82 is controlled independently, when the previous station detects that a certain microtube 13 in the test tube rack 27 is without a cap 14, the cap clamping cylinder 82 above that microtube 13 will not press down.

[0108] The test tube rack 27, after passing through the cap clamping mechanism 8, is continued to be conveyed forward by the conveyor chain 21 to the area directly below the cap presence / absence detection mechanism 9, where the cap presence / absence detection mechanism 9 checks whether the micro-tubes 13 on the test tube rack 27 are covered with caps 14.

[0109] like Figure 16 As shown, the cap presence / absence detection mechanism 9 includes a first sliding frame 91 vertically slidably mounted above the conveyor chain 21. Multiple first guide sleeves 92 are fixedly mounted on the first sliding frame 91. A first guide rod 93 is coaxially mounted inside each first guide sleeve 92. The first guide rod 93 is slidably connected to the first guide sleeve 92. A proximity switch 94 for sensing the position of the first guide rod 93 is provided above each first guide sleeve 92. The multiple proximity switches 94 and the multiple first guide rods 93 are respectively arranged in a one-to-one correspondence so that each proximity switch 94 can achieve independent detection, that is, each proximity switch 94 detects the position of the first guide rod 93 corresponding to it.

[0110] The cap presence / absence detection mechanism 9 also includes a first detection frame 95 fixed to the top of the frame 1. A sixth lifting cylinder 96 is fixedly mounted on the first detection frame 95. The movable end of the sixth lifting cylinder 96 is vertically upward and fixedly connected to the first sliding frame 91. The extension and retraction of the sixth lifting cylinder 96 drives the first sliding frame 91 to move up and down vertically. In this embodiment, ten first guide sleeves 92 are fixedly mounted on the first sliding frame 91. The axial direction of the first guide sleeves 92 is vertically arranged, and the center distance between two adjacent first guide sleeves 92 is equal to the center distance between two adjacent microtubes 13 on the test tube rack 27. When the test tube rack 27 is conveyed to the area directly below the first guide rod 93 via the conveyor chain 21, the sixth lifting cylinder 96 retracts, causing the first guide rod 93 on the first sliding frame 91 to descend by a predetermined height.

[0111] When a cap 14 is closed on the top of a microtube 13 on the test tube rack 27, the bottom of the first guide rod 93 is lifted by the top of the cap 14. The first guide rod 93 moves vertically upward a certain distance within the first guide sleeve 92. At this time, the proximity switch 94 detects the first guide rod 93, meaning the cap 14 is closed on the top of the microtube 13, and it is considered a qualified product. When a cap 14 is not closed on the top of a microtube 13 on the test tube rack 27, the bottom of the first guide rod 93 is not lifted by the top of the cap 14. At this time, the first guide rod 93 does not move upward and is in a relatively low position. The proximity switch 94 does not detect the first guide rod 93, and it is considered a defective product. The data of a microtube 13 without a cap 14 will be transmitted to the subsequent station.

[0112] The test tube rack 27, after being inspected by the cap-on / cap-off detection mechanism 9, is continued to be conveyed forward by the conveyor chain 21 to the area directly below the cap-on / cap-off detection mechanism 10, where the cap-on / cap-off detection mechanism 10 checks whether the caps 14 on the micro-tubes 13 on the test tube rack 27 are tightly closed.

[0113] The cap clamping detection mechanism 10 includes a second sliding frame vertically slidably mounted above the conveyor chain 21. Multiple second guide sleeves are fixedly mounted on the second sliding frame. A second guide rod is coaxially mounted inside each second guide sleeve, and the second guide rod is slidably connected to the second guide sleeve. A photoelectric sensor for sensing the position of the second guide rod is located above each second guide sleeve. The structure of the cap clamping detection mechanism 10 is similar to that of the cap presence / absence detection mechanism 9; its specific structure can be found in [reference needed]. Figure 16 The structural diagram of the cap-checking detection mechanism 9 is not described here. The difference is that the detection switch used in the cap-pressing detection mechanism 10 is a photoelectric sensor with higher accuracy than the proximity switch 94, resulting in higher detection accuracy.

[0114] Ten photoelectric sensors detect independently. When the cap 14 on the upper end of a certain microtube 13 on the test tube rack 27 is in a pressed state, the bottom of the second guide rod is lifted by the top of the cap 14, and the second guide rod moves upward a certain distance in the second guide sleeve in the vertical direction. At this time, the photoelectric sensor detects the position of the second guide rod, that is, the cap 14 is tightly covered on the top of the microtube 13, which is regarded as a qualified product. When the cap 14 on the upper end of a certain microtube 13 on the test tube rack 27 is not tightened, the bottom of the second guide rod is lifted to a higher height by the top of the cap 14. At this time, the second guide rod is relatively at a higher position, and the photoelectric sensor does not detect the second guide rod, which is regarded as a defective product. The data that the cap 14 on a certain microtube 13 is not pressed tightly will be transmitted to the subsequent workstations.

[0115] The test tube rack 27 that has passed the cap pressing detection mechanism 10 is continuously conveyed forward by the conveying chain 21 and is conveyed to directly below the rejection mechanism 11. The rejection mechanism 11 rejects the unqualified test tubes according to the detection results of the cap presence detection mechanism 9 and the cap pressing detection mechanism 10.

[0116] As Figure 17 shown, the rejection mechanism 11 includes a rejection fixing frame 111 fixedly arranged on the top of the frame 1. A fifth transverse movement cylinder 112 is fixedly arranged on the top of the rejection fixing frame 111. The fifth transverse movement cylinder 112 is horizontally arranged, and the movable end of the fifth transverse movement cylinder 112 is fixedly connected with a third transverse movement slide 113. The third transverse movement slide 113 is slidably connected with the rejection fixing frame 111 through a linear guide rail. A seventh lifting cylinder 114 is fixedly arranged on the third transverse movement slide 113. The seventh lifting cylinder 114 is vertically arranged, and its movable end is fixedly connected with a fifth lifting frame 115. A plurality of clamping air claws 116 are fixedly connected to the fifth lifting frame 115, and each clamping air claw 116 is independently controlled. In this embodiment, the number of clamping air claws 116 is ten, and the center distance between two adjacent clamping air claws 116 is the same as the center distance between two adjacent tube dropping holes 271 on the test tube rack 27. The clamping air claw 116 is a prior art, and any product commercially available on the market can be selected as long as it has the function of automatically clamping and releasing, and will not be elaborated here.

[0117] During operation, the fifth transverse cylinder 112 extends, causing the clamping claw 116 on the third transverse slide 113 to move directly above the test tube rack 27 on the conveyor chain 21. The seventh lifting cylinder 114 extends, causing the fifth lifting frame 115 and the clamping claw 116 to descend. The control device controls the corresponding clamping claw 116 to move according to the recorded position of the substandard test tube. After the clamping claw 116 clamps the micro-tube 13, the seventh lifting cylinder 114 retracts, causing the fifth lifting frame 115 and the clamping claw 116 to rise, removing the micro-tube 13 from the test tube rack 27. The fifth transverse cylinder 112 retracts, causing the third transverse slide 113 to move backward to the corresponding position. The clamping claw 116 releases, releasing the clamped micro-tube 13, which falls into the designated recycling bin, thus completing the rejection of substandard products and ensuring that no products are wasted.

[0118] The test tube rack 27, after being processed by the rejection mechanism 11, is continued to be conveyed forward by the conveyor chain 21 to the palletizing mechanism 12 for palletizing.

[0119] like Figure 18 As shown, the pallet loading mechanism 12 includes a picking unit 121, a conveying unit 122, a loading unit 123, and a pallet supply unit 124. The picking unit 121 is located above the conveyor chain 21, and the conveying unit 122 is located between the picking unit 121 and the loading unit 123. The conveying unit 122 is used to transfer the micro-tube 13 on the picking unit 121 to the loading unit 123, and the loading unit 123 is used to move the micro-tube 13 into the pallet 1249 of the pallet supply unit 124.

[0120] like Figure 19 As shown, the picking unit 121 is used to pick up qualified products from the test tube rack 27 on the conveyor chain 21 and transport them to the material handling unit 122 for placement inside the material handling unit 122. The picking unit 121 includes a picking rack 1211 fixed to the top of the frame 1. A sixth transverse cylinder 1212 is fixedly installed on the top of the picking rack 1211. The sixth transverse cylinder 1212 is horizontally arranged, and a fourth transverse slide 1213 is fixedly connected to the movable end of the sixth transverse cylinder 1212. The fourth transverse slide 1213 is slidably connected to the picking rack 1211 through a linear guide rail. The extension and retraction of the sixth transverse cylinder 1212 drives the fourth transverse slide 1213 to reciprocate along the width direction of the frame 1. An eighth lifting cylinder 1214 is fixedly installed on the fourth transverse slide 1213. The eighth lifting cylinder 1214 is vertically arranged, and the movable end of the eighth lifting cylinder 1214 is vertically downward and fixedly connected to a material picking gripper 1215. The extension and retraction of the eighth lifting cylinder 1214 drives the material picking gripper 1215 to move up and down in the vertical direction. The material picking gripper 1215 picks up the micro-tube 13 on the test tube rack 27 and places it above the material conveying unit 122 in one go.

[0121] likeFigure 20 As shown, the material handling unit 122 includes a material handling frame 1221 fixed to the top of the frame 1, located directly below the material handling unit 121. A seventh transverse cylinder 1222 is fixedly mounted on the material handling frame 1221. The seventh transverse cylinder 1222 is horizontally positioned, and its movable end is fixedly connected to a fifth transverse slide 1223. The fifth transverse slide 1223 reciprocates above the material handling frame 1221 along the width direction of the frame 1 via a linear guide rail. The top of the fifth transverse slide 1223 is provided with a tube holder 1224 for placing micro-tubes 13. The tube holder 1224 has ten grooves for holding micro-tubes 13, the size of which is matched to the micro-tubes 13. The center distance between two adjacent grooves is equal to the center distance between two adjacent tube drop holes 271 on the test tube rack 27. The seventh transverse cylinder 1222 extends and retracts, driving the fifth transverse slide 1223 and the tube placement rack 1224 to move back and forth between the material conveying unit 122 and the material loading unit 123, thereby transporting the micro-tube 13 of the material taking unit 121 to the material loading unit 123 to complete the transfer of the micro-tube 13.

[0122] like Figure 21 As shown, the loading unit 123 includes a loading rack 1231 fixed to the top of the frame 1. A sixth transverse slide 1232 is slidably mounted on the top of the loading rack 1231. The sixth transverse slide 1232 reciprocates along the width direction of the frame 1 via a linear guide rail. A ninth lifting cylinder 1233 is also fixedly mounted on the sixth transverse slide 1232. The ninth lifting cylinder 1233 is vertically mounted, with its movable end pointing vertically downward and fixedly connected to a first baffle 1234. The extension and retraction of the ninth lifting cylinder 1233 causes the first baffle 1234 to move up and down vertically. A tenth lifting cylinder 1235 is also fixedly mounted on the sixth transverse slide 1232, and is parallel to the ninth lifting cylinder 1233. The movable end of the tenth lifting cylinder 1235 is pointing vertically downward and fixedly connected to a pipe transport frame 1236, which has a C-shaped structure. The bottom wall of the tube transport rack 1236 has multiple elongated notches, which are evenly distributed along the length of the rack. Specifically, the number and position of the notches correspond to the tube drop holes 271 on the test tube rack 27. In this embodiment, there are ten notches, and the center distance between two adjacent notches is equal to the center distance between two adjacent tube drop holes 271 on the test tube rack 27. The size of the notches corresponds to the size of the micro-tube 13 to facilitate the sliding of the micro-tube 13 into and out of the notches.

[0123] Two eleventh lifting cylinders 1237 are fixedly connected to the top of the pipe transport frame 1236, and the two eleventh lifting cylinders 1237 are respectively set near the two ends of the pipe transport frame 1236. The eleventh lifting cylinder 1237 is set vertically, and its movable end is vertically downward and fixedly connected to a second baffle 1238, which is located inside the C-shaped pipe transport frame 1236. The extension and retraction of the eleventh lifting cylinder 1237 drives the second baffle 1238 to move up and down inside the pipe transport frame 1236. The second baffle 1238 descends to block the micro-tube 13 in the notch, preventing the micro-tube 13 from falling out of the notch during the movement of the sixth transverse slide 1232.

[0124] The loading unit 123 transports the micro-tubes 13 from the tube transport rack 1236 to the pallet supply unit 124 for palletizing qualified micro-tubes 13. Figure 22 and Figure 23 As shown, the pallet supply unit 124 includes a workbench 1241, a pallet hopper 1242 for storing pallets 1249, a first push plate 1243, and a second push plate 1244. The workbench 1241 is located on one side of the frame 1, and the pallet hopper 1242 is fixedly installed on the top of the workbench 1241. Multiple pallets 1249 in the pallet hopper 1242 are stacked vertically. The pallet hopper 1242 has a C-shaped structure with one open end, which facilitates the placement or removal of pallets 1249. Rectangular notches for pallets 1249 to pass through are provided on two opposite sides of the bottom of the pallet hopper 1242. The length of the notch is slightly greater than the length of the pallet 1249, and the height of the notch is slightly greater than the thickness of the pallet 1249, so as to facilitate the pushing of the pallet 1249 out of the notch.

[0125] The first push plate 1243 is slidably disposed at the bottom of the pallet hopper 1242, and the second push plate 1244 is slidably disposed at the top of the workbench 1241. The sliding directions of the first push plate 1243 and the second push plate 1244 are perpendicular to each other. The first push plate 1243 is used to push the empty pallet 1249 in the pallet hopper 1242 to a designated position and wait for the pallet 1249 to be loaded. The second push plate 1244 is used to push the pallet 1249 filled with micro-tubes 13 to a designated position for subsequent collection. The workbench 1241 is fixedly provided with a third longitudinal movement cylinder 1245 and an eighth transverse movement cylinder 1246. The third longitudinal movement cylinder 1245 and the eighth transverse movement cylinder 1246 are both horizontally disposed and perpendicular to each other. The movable end of the third longitudinal movement cylinder 1245 is fixedly connected to the first push plate 1243, which is located on top of the workbench 1241. The extension and retraction of the third longitudinal movement cylinder 1245 drives the first push plate 1243 to reciprocate along the length of the frame 1, thereby moving the empty pallet 1249 in the pallet bin 1242 to the pallet loading position. The top of the workbench 1241 is also provided with two guide plates 1247. The two guide plates 1247 are used for the movement of the pallet 1249 and play a guiding role, effectively preventing the pallet 1249 from tilting during movement. The second push plate 1244 is located between the two guide plates 1247, and is perpendicular to the two guide plates 1247. The eighth transverse cylinder 1246 extends and retracts, causing the second push plate 1244 to reciprocate along the length of the guide plates 1247 between them. During the movement, the second push plate 1244 pushes the tray 1249 filled with micro-tubes 13 to move it to the designated position. Two twelfth lifting cylinders 1248 are also fixedly installed inside the worktable 1241. The twelfth lifting cylinders 1248 are vertically arranged, with their movable ends vertically upward and connected to bearings. The movable ends of the two twelfth lifting cylinders 1248 pass through the top of the worktable 1241, and the two bearings are located between the two guide plates 1247 and are respectively close to the inner side of the two guide plates 1247. The two twelfth lifting cylinders 1248 extend, driving the two bearings to move upward. The outer circumference of the two bearings abuts against one side of the empty pallet 1249 taken out from the pallet bin 1242, so that the two bearings play a guiding role and prevent the empty pallet 1249 from tilting when it moves along the length of the frame 1.

[0126] When the pallet supply unit 124 is working, firstly, the two twelfth lifting cylinders 1248 extend, driving the two bearings to move upward to a specified height to guide the pallet 1249. Then, the third longitudinal cylinder 1245 extends, driving the first push plate 1243 to push the empty pallet 1249 in the pallet bin 1242 to move along the length of the frame 1 to between the two guide plates 1247. The two twelfth lifting cylinders 1248 retract, driving the two bearings to move downward, so that the top of the two bearings is lower than the top of the worktable 1241. The loading unit 123 places the qualified microtubes 13 onto the tray 1249. At this time, the first baffle 1234 and the second baffle 1238 of the loading unit 123 are both in a lowered state. The second baffle 1238 is located inside the first baffle 1234 to block the test tubes on the tube transport rack 1236 and prevent them from falling out of the rack. The first baffle 1234 is used to block the row of test tubes already placed on the tray 1249 to prevent the two rows of test tubes from interfering with each other. The loading unit 123 adopts a loading method from far to near. When the loading unit 123 places a row of test tubes, the eighth transverse cylinder 1246 drives the second push plate 1244 to move the tray 1249 forward a certain distance so that the previous row of test tubes moves a certain distance, ensuring that each row of test tubes on the tray 1249 does not interfere with each other. For each row of test tubes installed on the tray 1249, the second pusher plate 1244 pushes the tray 1249 forward a certain distance until the tray 1249 is full of microtubes 13. The second pusher plate 1244 then pushes the tray 1249 full of microtubes 13 to the discharge port and prepares for the next round of tray 1249 loading.

[0127] When the pallet loading mechanism 12 is in use, the material picking unit 121 takes out all the qualified test tubes from the test tube rack 27 on the conveyor chain 21 and clamps them into the tube placement rack 1224 of the material conveying unit 122 below. The tube placement rack 1224 of the material conveying unit 122 transfers the qualified test tubes to the tube transport rack 1236 of the loading unit 123. The loading unit 123 places the test tubes from far to near into the pallet 1249 of the pallet supply unit 124 through the sliding tube transport rack 1236. When the test tubes in the pallet 1249 are full, the pallet 1249 is pushed to the discharge port and prepared for the next round of pallet loading 1249 action.

[0128] In use, the automated micro-volume tube production device of the present invention arranges the micro-volume tubes 13 without caps 14 in the test tube vibrating plate 31 neatly and conveys them to the test tube rack 27 on the conveyor chain 21. The conveyor chain 21 drives the micro-volume tubes 13 on the test tube rack 27 to pass sequentially through the spraying mechanism for spraying micro-volume tubes 13 and the drying mechanism 6, and then to the cap filling mechanism 7. The cap filling mechanism 7 places the caps 14 on top of the micro-volume tubes 13 and then sequentially presses the caps 14 into place through the cap pressing mechanism 8. 4. The cap 14 is pressed onto the top of the micro-volume tube 13. Then, the cap 14 and the micro-volume tube 13 are conveyed by the test tube rack 27 and pass through the cap presence / absence detection mechanism 9 and the cap pressing detection mechanism 10 to detect the cap 14 and the micro-volume tube 13. The test tube rack 27 continues to convey them to the rejection mechanism 11. Products that do not meet the standards are automatically removed by the rejection mechanism 11. Qualified products are finally loaded onto the tray by the tray loading mechanism 12. The entire production process of the micro-volume tube 13 is automated, which saves manpower and material resources and improves production efficiency.

[0129] While the present invention discloses preferred embodiments to achieve the above objectives, these are not intended to limit the structural features of the invention. Anyone skilled in the art should know that any easily conceived variations or modifications are possible within the technical spirit of the invention and are covered by the claims of the present invention.

Claims

1. A microtube automated production apparatus characterized by comprising: The application relates to a micro-pipette loading device, which comprises a rack (1), a ring-shaped conveying mechanism (2) rotatably arranged on the rack (1), a conveying chain (21) arranged above the rack (1), a plurality of test tube racks (27) for loading micro-pipettes (13) fixedly arranged on the ring-shaped conveying mechanism (2), a test tube loading mechanism (3), a spraying mechanism, a drying mechanism (6), a cap loading mechanism (7), a cap pressing mechanism (8), a cap presence / absence detection mechanism (9), a cap pressing detection mechanism (10), a rejection mechanism (11) and a tray loading mechanism (12) sequentially arranged along a conveying path of the ring-shaped conveying mechanism (2), and the test tube loading mechanism (3) is arranged adjacent to the tray loading mechanism (12). The test tube loading mechanism (3) comprises a test tube shaking disc (31), a test tube conveying channel (32), a test tube distribution sliding block (34), a lifting unit (35) and a test tube clamping unit (36), the test tube shaking disc (31) is located on one side of the rack (1), an inlet end of the test tube conveying channel (32) is communicated with an outlet end of the test tube shaking disc (31), an outlet end of the test tube conveying channel (32) is connected with the test tube distribution sliding block (34), a test tube distribution air cylinder (37) is fixedly arranged below the test tube distribution sliding block (34), a movable end of the test tube distribution air cylinder (37) is fixedly connected with the bottom of the test tube distribution sliding block (34) and drives the test tube distribution sliding block (34) to reciprocally slide along the width direction of the test tube conveying channel (32), a plurality of test tube accommodating holes (341) for accommodating micro-pipettes (13) are formed in the test tube distribution sliding block (34), the center distance between two adjacent test tube accommodating holes (341) is half of the distance between two adjacent conveying channels in the test tube conveying channel (32), the lifting unit (35) is vertically slidably arranged below the test tube distribution sliding block (34), the lifting unit (35) is used for upwardly lifting the plurality of micro-pipettes (13) in the test tube distribution sliding block (34), and the test tube clamping unit (36) is located above the test tube distribution sliding block (34) and is used for clamping the plurality of micro-pipettes (13) lifted by the lifting unit (35) into the test tube racks (27) fixed on the conveying chain (21).

2. The micropipette automation production apparatus of claim 1, wherein, The annular conveying mechanism (2) further comprises a driving sprocket (22), a driven sprocket (23), a conveying guide rail (24) and a driving unit (25) arranged in the rack (1), the driving sprocket (22) and the driven sprocket (23) are rotatably arranged at two ends above the rack (1), the conveying chain (21) is sleeved on the outer side of the driving sprocket (22) and the driven sprocket (23), the driving unit (25) comprises a driving motor (251) and a cam divider (252) arranged in the rack (1), the driving motor (251) and the cam divider (252) are connected through a frequency converter, the output end of the cam divider (252) is fixedly connected with the driving sprocket (22), one end of the test tube rack (27) is fixedly connected with the conveying chain (21), and the other end is abutted with the conveying guide rail (24).

3. The microtube automation production apparatus according to claim 1 or 2, characterized by, The spraying mechanism is an anticoagulant spraying mechanism (4) and / or a coagulation promoting spraying mechanism (5), the anticoagulant spraying mechanism (4) comprises a pressure barrel fixedly arranged above the rack (1) and a striker valve (41) for injecting an anticoagulant into a micro tube (13), the outlet end of the pressure barrel is communicated with the inlet end of the striker valve (41) through a pipeline, and the coagulation promoting spraying mechanism (5) comprises a pressure tank (51) arranged above the rack (1) and a pinch valve (52) for injecting a coagulation promoting agent into the micro tube (13), the outlet end of the pressure tank (51) is communicated with the inlet end of the pinch valve (52) through a pipeline.

4. The micropipette automation production apparatus of claim 2, wherein, The cap filling mechanism (7) comprises a cap vibration disc (71), a cap conveying channel (72), a cap distribution sliding block (73), a cap adsorption unit (74) and a cap clamping unit (75), the cap vibration disc (71) is located on the other side of the rack (1), the inlet end of the cap conveying channel (72) is communicated with the outlet end of the cap vibration disc (71), the outlet end of the cap conveying channel (72) is connected with the cap distribution sliding block (73), a cap distribution air cylinder (77) is fixedly arranged below the cap distribution sliding block (73), the movable end of the cap distribution air cylinder (77) is fixedly connected with the bottom of the cap distribution sliding block (73) and drives the cap distribution sliding block (73) to reciprocate along the width direction of the cap conveying channel (72), the cap adsorption unit (74) is located above the cap distribution sliding block (73), the cap adsorption unit (74) is used for adsorbing and moving the cap (14) output by the cap vibration disc (71) into the cap clamping unit (75), and the cap clamping unit (75) is arranged above the conveying chain (21).

5. The microtube automation production apparatus according to claim 2, wherein The number of the cap pressing mechanisms (8) is two, the two cap pressing mechanisms (8) are arranged along the length direction of the rack (1), each cap pressing mechanism (8) comprises a plurality of cap pressing cylinders (82) fixedly arranged above the conveying chain (21), each cap pressing cylinder (82) is vertically arranged downwards, the movable end of the cap pressing cylinder (82) is fixedly connected with a pressing rod (83), the bottom end of the pressing rod (83) is rotatably provided with a pressing seat (84) for pressing the cap (14).

6. The microtube automation production apparatus according to claim 2, wherein The cap presence / absence detection mechanism (9) comprises a first sliding frame (91) vertically slidingly arranged above the conveying chain (21), a plurality of first guide sleeves (92) are fixedly arranged on the first sliding frame (91), a first guide rod (93) is coaxially arranged in each first guide sleeve (92), the first guide rod (93) is slidingly connected with the first guide sleeve (92), an approach switch (94) for sensing the position of the first guide rod (93) is arranged above each first guide sleeve (92).

7. The microtube automation production apparatus according to claim 2, wherein The cap pressing detection mechanism (10) comprises a second sliding frame vertically slidingly arranged above the conveying chain (21), a plurality of second guide sleeves are fixedly arranged on the second sliding frame, a second guide rod is coaxially arranged in each second guide sleeve, the second guide rod is slidingly connected with the second guide sleeve, a photoelectric sensor for sensing the position of the second guide rod is arranged above each second guide sleeve.

8. The micropipette automation production apparatus of claim 2, wherein, The tray loading mechanism (12) comprises a material taking unit (121), a material conveying unit (122), a material loading unit (123) and a tray supply unit (124), the material taking unit (121) is arranged above the conveying chain (21), the material conveying unit (122) is located between the material taking unit (121) and the material loading unit (123), the material conveying unit (122) is used for transferring the micro-pipette (13) on the material taking unit (121) to the material loading unit (123), the material loading unit (123) is used for moving the micro-pipette (13) into the tray (1249) of the tray supply unit (124).

9. The micropipette automation production apparatus of claim 8, wherein, The tray supply unit (124) comprises a workbench (1241), a tray warehouse (1242) for storing trays (1249), a first push plate (1243) and a second push plate (1244), the workbench (1241) is located on one side of the rack (1), the tray warehouse (1242) is fixedly arranged on the top of the workbench (1241), the first push plate (1243) is slidingly arranged at the bottom of the tray warehouse (1242), the second push plate (1244) is slidingly arranged on the top of the workbench (1241), and the sliding directions of the first push plate (1243) and the second push plate (1244) are perpendicular.

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