CN115648116A - Automatic blood test tube capping machine and automatic capping method - Google Patents

Abstract

The invention relates to an automatic blood test tube capping machine and an automatic capping method, which solve the technical problems that in the existing clinical blood inspection process, the capping work efficiency of a blood collection tube is low due to manual operation, the labor cost is high, the labor intensity of operators is high, and the risk of blood infection exists. The automatic cap is widely used for automatically capping the blood collection tube.

Description

Automatic capping machine for blood test tube and automatic capping method

Technical Field

The invention relates to the technical field of clinical blood examination, in particular to an automatic capping machine and an automatic capping method for a blood test tube.

Background

In the technical field of clinical blood test, capping a blood collection tube is an essential process for storing residual blood after blood detection is finished in each department of a clinical laboratory of a hospital. The utility model discloses a structure of heparin tube and block can refer to the utility model patent of grant publication No. CN217365863U, the name is a push down formula block for the heparin tube to and grant publication No. CN216569952U, the name is a utility model patent of heparin tube for clinical examination.

At present, the capping process mainly takes manual operation as a main part, and the following technical problems mainly exist: work efficiency is low, and the cost of labor is high, and operating personnel intensity of labour is big, has strict operating specification requirement to operating personnel, has the risk that causes blood infection to operating personnel when taking place under the unexpected circumstances such as heparin tube breaks moreover.

Disclosure of Invention

The invention aims to solve the technical problems that in the existing clinical blood inspection process, the capping work efficiency of a blood collection tube is low, the labor cost is high, the labor intensity of an operator is high, and the risk of blood infection exists, and provides the automatic capping machine for the blood test tube and the automatic capping method, which replace manpower, have high work efficiency, reduce the labor intensity of the operator, and avoid the risk of blood infection.

The invention provides a blood test tube automatic capping machine, which comprises a vibration disc, a support flat plate, a frame, four stand columns, a test tube tray positioning device, a blood test tube spacing device and a blood test tube cap vacuum suction device, wherein the test tube tray positioning device, the blood test tube spacing device and the blood test tube cap vacuum suction device can be manually locked;

the test tube tray positioning device capable of being manually locked comprises a tray carrier, a first X-axis slide rail, a second X-axis slide rail, a locking cylinder and a locking block, wherein the first X-axis slide rail and the second X-axis slide rail are fixedly connected to a support flat plate side by side; the tray carrier is connected with the sliding blocks on the first X-axis sliding rail and the second X-axis sliding rail and is provided with a handle;

the blood test tube spacing device comprises a conveying track, a conveying track support, a fixed plate, a first ball screw pair, a front bearing seat, a rear bearing seat, a first driving synchronous pulley, a second driven synchronous pulley, a first synchronous belt, a servo motor, a first guide rail, a sliding block and a spacing feeding plate, wherein the conveying track is connected with the conveying track support; the right end of the conveying track is aligned with the output end of the vibrating disk;

the blood test tube cap vacuum suction device comprises a first Y-axis slide rail component, a second ball screw pair, a left bearing seat, a right bearing seat, a lifting cylinder, a sliding plate, a first guide shaft, a second guide shaft, a third guide shaft, a fourth guide shaft, a first linear bearing, a second linear bearing, a third linear bearing, a fourth linear bearing, a suction nozzle connecting plate, a stainless steel suction nozzle, a second driving synchronous pulley, a second driven synchronous pulley, a second synchronous belt, a motor bracket, a driving motor and a vacuum generator, wherein the first Y-axis slide rail component and the second Y-axis slide rail component are fixedly connected on a frame side by side, the left bearing seat and the right bearing seat are respectively and fixedly connected to the frame, the left end of a ball screw in the second ball screw pair is connected with the left bearing seat, the right end of the ball screw is connected with the right bearing seat, the sliding plate is fixedly connected with a nut seat in the second ball screw pair, the sliding plate is fixed with a sliding block of the first Y-axis sliding rail assembly and a sliding block of the second Y-axis sliding rail assembly, the second driven synchronous pulley is connected with the left end of the ball screw in the second ball screw pair, the second driving synchronous pulley is connected with an output shaft of a driving motor, the second synchronous belt is connected between the second driving synchronous pulley and the second driven synchronous pulley, the driving motor is fixedly connected to the bottom surface of the frame through a motor support, and the second synchronous belt penetrates through the frame; the lower ends of the first guide shaft, the second guide shaft, the third guide shaft and the fourth guide shaft are respectively fixedly connected with a suction nozzle connecting plate, the suction nozzle connecting plate is positioned below the sliding plate, the lifting cylinder is fixedly connected with the sliding plate, and the telescopic rod of the lifting cylinder is fixedly connected with the suction nozzle connecting plate; the vacuum generator is connected to the sliding plate, and the stainless steel suction nozzle is fixedly connected with the suction nozzle connecting plate; the suction nozzle connecting plate is provided with a vent hole, and the vent hole is connected with the vacuum generator through a hose; the number of the stainless steel suction nozzles is several;

the stainless steel suction nozzle is provided with a fixing part, a cylindrical part and a circular plate, the fixing part is fixedly connected with the upper end of the cylindrical part, the circular plate is fixedly connected in the inner cavity of the cylindrical part, a test tube cap accommodating cavity is formed between the circular plate and the lower end opening of the cylindrical part, and the circular plate is provided with a through hole; the fixed part is fixedly connected with the suction nozzle connecting plate, and the cylindrical part is communicated with the vent hole of the suction nozzle connecting plate.

Preferably, the feeding plate is provided with five test tube cap accommodating grooves in a separated mode, and the number of the stainless steel suction nozzles is five.

Preferably, the circular plate is provided with four through holes.

The invention also provides an automatic capping method using the blood test tube automatic capping machine, which comprises the following steps:

preparing a tray for loading blood collection tubes;

an operator pulls a handle of the tray carrier by hand to move the tray carrier forwards, then places a tray filled with blood collection tubes on the tray carrier, pushes the tray carrier backwards to move the tray carrier to a space below the frame, and then starts a locking cylinder which drives a locking block to move upwards so as to prop against the bottom surface of the tray carrier;

starting the vibrating disk, and outputting the test tube caps by the vibrating disk to enter a channel of the conveying track;

starting a servo motor of the blood test tube spacing device, outputting a test tube cap at the left end of the conveying track and entering a test tube cap accommodating groove of the spacing feeding plate; the servo motor drives the distance-dividing feeding plate to move forwards, so that the distance-dividing feeding plate is close to the left end of the tray;

starting a driving motor of the blood test tube cap vacuum suction device, driving a sliding plate to move leftwards to the position above a spaced feeding plate, then starting a lifting cylinder to enable a suction nozzle connecting plate to move downwards, sleeving the lower end of a stainless steel suction nozzle on the test tube cap in the spaced feeding plate, starting a vacuum generator, and sucking the test tube cap by the stainless steel suction nozzle;

starting a lifting cylinder of the blood test tube cap vacuum suction device to enable a suction nozzle connecting plate to move upwards, driving a stainless steel suction nozzle to drive a test tube cap to move upwards, then starting a driving motor to enable a sliding plate to move rightwards to be above a tray, starting the lifting cylinder to enable the suction nozzle connecting plate to move downwards, driving the stainless steel suction nozzle to drive the test tube cap to move downwards, enabling the test tube cap to be buckled at the top opening of a blood collection tube in the tray, and applying downward pressure to the test tube cap by a circular plate in the stainless steel suction nozzle to finish cap covering operation;

the action of the vacuum generator enables the suction force of the stainless steel suction nozzle to disappear, the lifting cylinder is started to enable the suction nozzle connecting plate to move upwards, and the stainless steel suction nozzle is far away from the tray.

The automatic capping device has the advantages that manual capping operation is replaced, the test tube is automatically capped on the blood collection tube, the labor intensity of operators is reduced, high labor cost is reduced, the operation efficiency is improved, and time is saved; the possibility of blood infection of the operator can be avoided; the blood test tube automatic capping machine provided by the invention has the advantages of compact structure, stable and reliable performance, low requirements on experience and professional level of operators in the using process, and can be operated by personnel without manual capping experience.

The blood test tube automatic capping machine comprises a plurality of functional modules, wherein the blood test tube spacing device can be used for arranging 5 test tube caps in a line at a certain interval, so that the 5 test tube caps can be conveniently capped on blood collection tubes in one step in the subsequent process; the blood test tube cap vacuum suction device can suck and transfer 5 test tube caps at a time, can cap 5 test tubes on 5 blood collection tubes at a time, has high efficiency, and cannot damage the test tube caps by sucking the test tube caps; wherein can the manual test tube tray positioner of locking can fix the tray that holds the heparin tube accurately, steadily, also conveniently shifts the tray that will accomplish the block operation to get and put the workspace.

Further features of the invention will be apparent from the description of the embodiments which follows.

Drawings

FIG. 1 is an isometric view of an automatic blood test tube capping machine;

FIG. 2 is a front view of the blood test tube automatic capping machine of FIG. 1;

FIG. 3 is a rear view of the blood test tube automatic capping machine of FIG. 1;

FIG. 4 is a left side view of the blood test tube automatic capping machine of FIG. 1;

FIG. 5 is a right side view of the blood test tube automatic capping machine of FIG. 1;

FIG. 6 is a top view of the blood test tube automatic capping machine of FIG. 1;

FIG. 7 is a bottom view of the blood test tube automatic capping machine of FIG. 1;

FIG. 8 is a perspective view of the blood test tube automatic capping machine of FIG. 1 from another perspective;

FIG. 9 is a schematic view of the connection structure of the latch cylinder and the support plate of FIG. 1, illustrating the position relationship between the latch blocks and the pallet carriers;

FIG. 10 is a schematic view showing the structure of a blood test tube spacing device in the blood test tube automatic capping machine of FIG. 1;

FIG. 11 is a front view of the structure shown in FIG. 10;

FIG. 12 is a top view of the structure shown in FIG. 10;

FIG. 13 is a bottom view of the structure shown in FIG. 10;

FIG. 14 is a schematic structural view of a blood test tube cap vacuum sucking device in the blood test tube automatic capping machine shown in FIG. 1;

FIG. 15 is a schematic view of the blood test tube cap vacuum suction device of FIG. 14;

FIG. 16 is a schematic view of the blood test tube automatic capping machine of FIG. 1 with the tray removed;

FIG. 17 is a top view of the structure shown in FIG. 16;

FIG. 18 is an enlarged view of a portion of FIG. 16 at A;

fig. 19 is a partial enlarged view of fig. 10;

FIG. 20 is a perspective view of a stainless steel suction nozzle;

FIG. 21 is a perspective view of a stainless steel mouthpiece;

FIG. 22 is a top view of a stainless steel suction nozzle;

fig. 23 is a bottom view of the stainless steel nozzle.

The symbols in the figures illustrate:

1. a vibrating pan; 2. a vibrating disk lifting plate; 3. a vibration plate fixing plate; 4. a vibration disk controller; 5. a screw; 6. adjusting the nut; 7. the automatic test device comprises an upper nut, 8 parts of a lower nut, 9 parts of a support flat plate, 10 parts of an upright post, 11 parts of a frame, 12 parts of a tray carrier, 12-1 parts of a handle, 12-2 parts of a front flange, 12-3 parts of a rear flange, 12-4 parts of a locking block, 12-5 parts of a movable rod, 12-6 parts of a kidney-shaped hole, 13 parts of a first X-axis sliding rail, 14 parts of a second X-axis sliding rail, 15 parts of a locking cylinder, 17 parts of a locking block, 18 parts of a conveying rail, 18-1 parts of a channel, 19 parts of a conveying rail support, 20 parts of a fixing plate, 21 parts of a first ball screw pair, 22 parts of a front bearing seat, 23 parts of a rear bearing seat, 24 parts of a first driving synchronous accommodating groove, 25 parts of a second driven synchronous belt wheel, 26 parts of a first synchronous belt, 27 parts of a servo motor, 28 parts of a first guide rail, 29 parts of a sensor fixing frame, 30 parts of a sliding block, 31 parts of a distance-separating feeding plate, 31-1 parts of a pipe cap and 32 parts of a synchronous belt shield;

33. the device comprises a first Y-axis slide rail assembly, a second Y-axis slide rail assembly, a 35-drag chain, a 36-synchronous belt cover, a 37-second ball screw pair, a 38-left bearing seat, a 39-right bearing seat, a 40-lifting cylinder, a 41-sliding plate, a 42-drag chain connecting plate, a 43-first guide shaft, a 44-second guide shaft, a 45-third guide shaft, a 46-fourth guide shaft, a 47-first linear bearing, a 48-second linear bearing, a 49-third linear bearing, a 50-fourth linear bearing, a 51-suction nozzle connecting plate, a 51-1 vent hole, a 52-stainless steel suction nozzle, a 52-1 fixing part, a 52-1-1 connecting hole, a 52-2-cylindrical part, a 52-3-1 circular plate, a 52-3-1 through hole, a 52-4-test tube cap accommodating cavity, a 53-second driving synchronous belt wheel, a 54-second driven synchronous belt wheel, a 55-second driven synchronous belt wheel, a 56-motor bracket, a 57-synchronous belt driving motor, a 58-synchronous belt generator; 59. tray, 60 test tube caps, 61 blood collection tubes, 62 test tube caps, 63 test tube caps.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments thereof with reference to the attached drawings.

As shown in fig. 1-9, the blood test tube automatic capping machine comprises a vibration disc 1, a support plate 9, stand columns 10, a frame 11, a test tube tray positioning device capable of being manually locked, a blood test tube distance dividing device and a blood test tube cap vacuum suction device, wherein the four stand columns 10 are fixedly installed on the support plate 9, the frame 11 is fixedly connected with the upper ends of the four stand columns 10, the frame 11 is located on a horizontal plane, the test tube tray positioning device capable of being manually locked is connected with the support plate 9, the blood test tube distance dividing device is connected with the support plate 9, the blood test tube cap vacuum suction device is connected with the frame 11, and the blood test tube distance dividing device is located below the blood test tube cap vacuum suction device. Vibration dish 1 is close to and supports dull and stereotyped 9, vibration dish 1 is fixed on the vibration dish base, this vibration dish base a concrete implementation structure includes vibration dish lifter plate 2, vibration dish fixed plate 3, vibration dish controller 4, screw rod 5, adjusting nut 6, upper nut 7, lower nut 8, screw rod 5, adjusting nut 6, upper nut 7 and lower nut 8 constitute lift adjustment mechanism, upper nut 7 and the top surface fixed connection of vibration dish fixed plate 3, lower nut 8 and the bottom surface fixed connection of vibration dish fixed plate 3, screw rod 5 passes vibration dish fixed plate 3, screw rod 5 and upper nut 7 are connected the cooperation, screw rod 5 and lower nut 8 are connected the cooperation, the upper end and the vibration dish lifter plate 2 fixed connection of screw rod 5, adjusting nut 6 and the upper portion of screw rod 5 are connected the cooperation, adjusting nut 6 is located the below vibration dish lifter plate 2, the bottom fixed mounting of vibration dish 1 is on vibration dish lifter plate 2, totally have four sets of lift adjustment mechanism, it just can make vibration dish 1 rise or descend to rotate adjusting nut 6 with the instrument, thereby adjust the position of dish 1. A vibration disk controller 4 for controlling the operation of the vibration disk is installed on the vibration disk fixing plate 3.

Test tube tray positioner that can manual locking includes tray carrier 12, first X axle slide rail 13, second X axle slide rail 14, locking cylinder 15, locking piece 17, first X axle slide rail 13, second X axle slide rail 14 is fixed mounting side by side on supporting flat board 9, 15 fixed mounting of locking cylinder are on supporting flat board 9's bottom surface, locking cylinder 15's telescopic link passes supporting flat board 9, locking piece 17 and locking cylinder 15's telescopic link fixed connection, locking piece 17 is located tray carrier 12's below. The tray carrier 12 is connected with a slider on the first X-axis slide rail 13, and the tray carrier 12 is connected with a slider on the second X-axis slide rail 14. The tray carrier 12 is provided with a handle 12-1, under the support of a first X-axis slide rail 13 and a second X-axis slide rail 14, an operator can pull the handle 12-1 by hand to enable the whole tray carrier 12 to slide back and forth along the X-axis direction, when the position of the tray carrier 12 is determined, a locking cylinder 15 is started, the locking cylinder 15 drives a locking block 17 to move upwards to prop against the bottom surface of the tray carrier 12, the tray carrier 12 is further fixed, and the tray carrier 12 is enabled to be static.

The blood test tube spacing device comprises a conveying track 18, a conveying track support 19, a fixing plate 20, a first ball screw pair 21, a front bearing seat 22, a rear bearing seat 23, a first driving synchronous pulley 24, a second driven synchronous pulley 25, a first synchronous belt 26, a servo motor 27, a first guide rail 28, a sensor fixing frame 29, a sliding block 30, a spacing feeding plate 31 and a synchronous belt shield 32, and referring to fig. 10-13, the conveying track 18 is connected with the conveying track support 19, the front bearing seat 22 and the rear bearing seat 23 are respectively and fixedly installed on the fixing plate 20, the front end of the first ball screw pair 21 is connected with the front bearing seat 22, the rear end of the first ball screw pair 21 is connected with the rear bearing seat 23, the first driving synchronous pulley 24 is connected with an output shaft of the servo motor 27, the second driven synchronous pulley 25 is connected with the front end of the first ball screw pair 21, the first synchronous belt 26 is connected between the second driven synchronous pulley 25 and the first driving synchronous pulley 24, the first guide rail 28 is fixedly installed on the fixing plate 20, the first ball screw pair 21 is connected with a nut fixing seat, the sliding block 30 is connected with the sliding block 31, and the sliding block 31 is provided with the sliding block 31. The left end of the conveying track 18 is close to the spaced feeding plate 31. The sensor holder 29 is fixedly mounted on the fixing plate 20. The conveying track support 19 is connected with the supporting plate 9, the fixing plate 20 is fixedly installed on the supporting plate 9, the servo motor 27 is fixedly installed on the bottom surface of the supporting plate 9, the first synchronous belt 26 penetrates through the supporting plate 9, the synchronous belt shield 32 is fixedly installed on the supporting plate 9, and the synchronous belt shield 32 plays a role in protecting the first driving synchronous belt pulley 24, the second driven synchronous belt pulley 25 and the first synchronous belt 26. When the servo motor 27 is started, the servo motor 27 drives the ball screw of the first ball screw pair 21 to rotate through the synchronous belt transmission mechanism, so that the nut seat of the first ball screw pair 21 drives the sliding block 30 to slide along the X-axis direction, and then the sliding block 30 drives the feeding plate 31 to slide along the X-axis direction. As shown in FIG. 18, the conveyor track 18 is provided with a channel 18-1 into which the caps 62 of the output of the vibratory tray enter. The output end of the vibratory pan is aligned with the right end of the conveyor track 18.

Referring to fig. 14 and 15, the blood test tube cap vacuum suction device includes a first Y-axis slide rail assembly 33, a second Y-axis slide rail assembly 34, a second ball screw pair 37, a left bearing block 38, a right bearing block 39, a lifting cylinder 40, a sliding plate 41, a tow chain connecting plate 42, a first guide shaft 43, a second guide shaft 44, a third guide shaft 45, a fourth guide shaft 46, a first linear bearing 47, a second linear bearing 48, a third linear bearing 49, a fourth linear bearing 50, a suction nozzle connecting plate 51, a stainless steel suction nozzle 52, a second driving synchronous pulley 53, a second driven synchronous pulley 54, a second synchronous belt 55, a motor bracket 56, a driving motor 57, a vacuum generator 58, a tow chain 35, and a synchronous belt cover 36, wherein the first Y-axis slide rail assembly 33 and the second Y-axis slide rail assembly 34 are fixedly mounted on the frame 11 in parallel, the left bearing block 38 and the right bearing block 39 are respectively fixedly mounted on the frame 11, the left end of the ball screw in the second ball screw pair 37 is connected with the left bearing seat 38, the right end of the ball screw is connected with the right bearing seat 39, the sliding plate 41 is fixedly connected with the nut seat in the second ball screw pair 37, the sliding plate 41 is fixed with the sliding block of the first Y-axis slide rail assembly 33, the sliding plate 41 is fixedly connected with the sliding block of the second Y-axis slide rail assembly 34, the second driven synchronous pulley 54 is connected with the left end of the ball screw in the second ball screw pair 37, the second driving synchronous pulley 53 is connected with the output shaft of the driving motor 57, the second synchronous belt 55 is connected between the second driving synchronous pulley 53 and the second driven synchronous pulley 54, the driving motor 57 is fixedly mounted on the bottom surface of the frame 11 through the motor bracket 56, the second synchronous belt 55 passes through the frame 11 (the frame 11 is provided with a through hole for the passing of the frame 11), the synchronous belt cover 36 is fixedly mounted on the frame 11, the timing belt cover 36 protects the second driving timing pulley 53 and the second driven timing pulley 54. The first linear bearing 47, the second linear bearing 48, the third linear bearing 49 and the fourth linear bearing 50 are respectively and fixedly installed on the sliding plate 41, the first guide shaft 43, the second guide shaft 44, the third guide shaft 45 and the fourth guide shaft 46 respectively penetrate through the first linear bearing 47, the second linear bearing 48, the third linear bearing 49 and the fourth linear bearing 50, the lower end of the first guide shaft 43 is fixedly connected with the suction nozzle connecting plate 51, the lower end of the second guide shaft 44 is fixedly connected with the suction nozzle connecting plate 51, the lower end of the third guide shaft 45 is fixedly connected with the suction nozzle connecting plate 51, the lower end of the fourth guide shaft 46 is fixedly connected with the suction nozzle connecting plate 51, the suction nozzle connecting plate 51 is located below the sliding plate 41, the lifting cylinder 40 is fixedly installed on the sliding plate 41, and the telescopic rod of the lifting cylinder 40 is fixedly connected with the suction nozzle connecting plate 51. The vacuum generator 58 is attached to the slide plate 41, the tow chain 35 is connected to the frame 11, the slide plate 41 is connected to the tow chain 35 via the tow chain connection plate 42, and the power cables and the signal cables of the power consumption units are wired on the tow chain 35. Five stainless steel suction nozzles 52 are fixedly connected with the suction nozzle connecting plate 51. When the lifting cylinder 40 acts, the lifting cylinder 40 drives the suction nozzle connecting plate 51 to ascend or descend, and the four guide shafts respectively slide in the corresponding four linear bearings along the Z-axis direction. When the driving motor 57 is started to drive the ball screw in the second ball screw pair 37 to rotate through the synchronous belt transmission mechanism, the nut seat in the second ball screw pair 37 drives the sliding plate 41 to slide along the Y-axis direction under the support of the first Y-axis slide rail assembly 33 and the second Y-axis slide rail assembly 34, and the sliding plate 41 drives the stainless steel suction nozzle 52 on the suction nozzle connecting plate 51 to move along the Y-axis direction. The suction nozzle connection plate 51 is provided with vent holes 51-1, and each stainless steel suction nozzle 52 is communicated with the vent hole 51-1. The vent 51-1 is connected to a vacuum generator 58 via a hose.

As shown in fig. 10, 16, 17 and 19, the tray carrier 12 is provided with a handle 12-1, a front rib 12-2 and a rear rib 12-3, when the tray is placed, the tray is placed between the front rib 12-2 and the rear rib 12-3, and the front rib 12-2 and the rear rib 12-3 limit and position the tray. If necessary, a locking block 12-4 and a movable rod 12-5 can be arranged, a first waist-shaped hole 12-2-1 is arranged at the right end of the front flange 12-2, a second waist-shaped hole is arranged at the right end of the rear flange 12-3, the rear end of the movable rod 12-5 is inserted into the first waist-shaped hole, the front end of the movable rod 12-5 is inserted into the second waist-shaped hole, two waist-shaped holes 12-6 are arranged at the right side of the tray carrier 12, the locking block 12-4 is fixedly connected with the movable rod 12-5, two pin shafts are connected to the bottom of the locking block 12-4 and are inserted into the two waist-shaped holes 12-6, two screw holes are arranged at the top of the locking block 12-4, two screws penetrate through the tray and are connected and fastened with the two screw holes of the locking block 12-4, then the tray is pushed along the X-axis direction, the locking block 12-4 moves in the limit range of the two waist-shaped holes 12-6, and the two ends of the movable rod 12-5 are positioned in the first waist-shaped hole at the right end of the front flange 12-2 and the rear flange 12-3 to realize fine adjustment of the tray. The fine tuning process can be adapted to trays of different sizes, so that the trays of different sizes can be close to the spaced feeding plate 31.

As shown in FIGS. 20 to 23, the stainless steel nozzle 52 is provided with a fixing portion 52-1, a cylindrical portion 52-2, and a circular plate 52-3, wherein the fixing portion 52-1 is fixedly connected to the upper end of the cylindrical portion 52-2, the circular plate 52-3 is fixed in the inner cavity of the cylindrical portion 52-2, a test tube cap accommodating chamber 52-4 is formed between the circular plate 52-3 and the lower opening of the cylindrical portion 52-2, and the circular plate 52-3 is provided with four through holes 52-3-1 (not limited to four through holes, but may be one, two, three, or more). The fixing portion 52-1 is provided with two connecting holes 52-1-1. The fixed portion 52-1 is made of stainless steel, and the cylindrical portion 52-2 is made of stainless steel.

Two screws are passed through the connecting holes 52-1-1 of the fixing portion 52-1 and then fixedly connected with the suction nozzle connecting plate 51, and the cylindrical portion 52-2 is communicated with the vent hole 51-1 of the suction nozzle connecting plate 51.

The working process of the blood test tube automatic capping machine is described as follows:

a large number of test tube caps are put into the vibration tray 1.

An operator puts a plurality of blood collection tubes 61 into the tray 59, and fills the tray 59 with the blood collection tubes, wherein the blood collection tubes are distributed in a plurality of rows on the tray 59, and 5 blood collection tubes are arranged in a row (as shown in fig. 6); then, the operator pulls the handle 12-1 of the tray carrier 12 with a hand to move the tray carrier 12 forward, then places the tray filled with the blood collection tubes on the tray carrier 12, pushes the tray carrier 12 backward to move to the space below the frame 11, then starts the lock cylinder 15, and the lock cylinder 15 drives the lock block 17 to move upward to prop against the bottom surface of the tray carrier 12, so that the tray carrier 12 is stationary and the tray 59 is stationary.

The tray 1 is activated and the tray 1 delivers the caps, as shown in fig. 10 and 18, which in turn enter the channel 18-1 from the right end of the conveyor track 18 and the caps 62 in the channel 18-1 are slowly moved to the left and delivered from the left end of the conveyor track 18.

Referring to fig. 10 and 12, a test tube cap is output from the left end of the conveying track 18 and enters the first test tube cap receiving slot 31-1 of the spaced feeding plate 31 (the first test tube cap receiving slot 31-1 from the top to the bottom in the spaced feeding plate 31 shown in fig. 12), then the servo motor 27 is started to drive the spaced feeding plate 31 to move upward for a certain distance (the direction of fig. 12 moves upward), the second test tube cap receiving slot 31-1 of the spaced feeding plate 31 is aligned with the left end of the conveying track 18, and at this time, the second test tube cap output from the left end of the conveying track 18 enters the second test tube cap receiving slot 31-1; then, the feeding plate 31 is driven to move upwards for a certain distance, a third test tube cap accommodating groove 31-1 of the feeding plate 31 is aligned with the left end of the conveying track 18, and a third test tube cap output from the left end of the conveying track 18 enters the third test tube cap accommodating groove 31-1; in the same manner, the fourth and fifth test tube caps are respectively inserted into the fourth and fifth test tube cap receiving grooves 31-1 and 31-1. Keep certain interval between 5 test tube caps in the partition pan feeding board 31, can ensure that five stainless steel suction nozzles of follow-up process adsorb these 5 test tube caps simultaneously.

Next, servo motor 27 drives the spaced apart feed plate 31 forward (i.e., upward in FIG. 12) so that the spaced apart feed plate 31 is adjacent the left end of tray 59.

Next, the driving motor 57 of the blood test tube cap vacuum suction device is started, the sliding plate 41 is driven to move leftwards to the upper part of the spaced feeding plate 31, then the lifting cylinder 40 is started to enable the suction nozzle connecting plate 51 to move downwards, the five stainless steel suction nozzles 52 move downwards along with the suction nozzle connecting plate, the lower ends of the five stainless steel suction nozzles 52 are sleeved on 5 test tube caps in the spaced feeding plate 31, namely, the 5 test tube caps respectively enter the test tube cap accommodating cavities 52-4 of the stainless steel suction nozzles 52, and then the vacuum generator is started, so that the test tube cap accommodating cavities 52-4 are in a negative pressure state, and then the test tube caps are sucked.

Next, the lifting cylinder 40 is actuated to move the nozzle connecting plate 51 upward, the stainless steel nozzles 52 carry the test tube caps upward, and five test tube caps in the spaced feeding plate 31 are transferred by the five stainless steel nozzles 52. Next, the driving motor 57 is started to move the sliding plate 41 to the right above the tray 59, then the lifting cylinder 40 is started to move the nozzle connecting plate 51 downward, the five stainless steel nozzles 52 carry 5 test tube caps to move downward, the 5 test tube caps are buckled on the top openings of the blood collection tubes 61 distributed in the tray 59 in a row, the circular plate 52-3 in the stainless steel nozzle 52 applies downward pressure to the test tube caps, and the test tube caps are capped on the blood collection tubes, thereby completing the capping operation.

Next, the vacuum generator makes the negative pressure of the test tube cap accommodating cavity 52-4 disappear, the suction force of the stainless steel suction nozzle 52 disappears, the lifting cylinder 40 is started to make the suction nozzle connecting plate 51 move upwards, and the five stainless steel suction nozzles are far away from the tray to prepare for adsorbing the next group of test tube caps.

Next, the servo motor 27 drives the spaced apart infeed plate 31 in a rearward direction (i.e., downward in FIG. 12) in preparation for receiving the next set of test tube caps.

By repeating the above process, each column of blood collection tubes in tray 59 can be capped with a tube cap in succession.

The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if those skilled in the art should appreciate that other configurations of the components, driving devices and connecting means without inventive design and structural modes and embodiments similar to the technical solution can be adopted without departing from the inventive spirit of the present invention, and all such configurations and embodiments are within the scope of the present invention.

Claims (4)

1. The automatic blood test tube capping machine is characterized by comprising a vibrating disc, a supporting flat plate, a frame, four stand columns, a test tube tray positioning device capable of being manually locked, a blood test tube spacing device and a blood test tube cap vacuum suction device, wherein the four stand columns are fixedly connected to the supporting flat plate, the frame is fixedly connected with the four stand columns, the test tube tray positioning device capable of being manually locked is connected with the supporting flat plate, the blood test tube spacing device is connected with the supporting flat plate, the blood test tube cap vacuum suction device is connected with the frame, and the blood test tube spacing device is positioned below the blood test tube cap vacuum suction device;

the test tube tray positioning device capable of being manually locked comprises a tray carrier, a first X-axis slide rail, a second X-axis slide rail, a locking cylinder and a locking block, wherein the first X-axis slide rail and the second X-axis slide rail are fixedly connected to a support flat plate side by side, the locking cylinder is fixedly connected with the bottom surface of the support flat plate, a telescopic rod of the locking cylinder penetrates through the support flat plate, the locking block is fixedly connected with a telescopic rod of the locking cylinder, and the locking block is positioned below the tray carrier; the tray carrier is connected with the sliding blocks on the first X-axis sliding rail and the second X-axis sliding rail and is provided with a handle;

the blood test tube spacing device comprises a conveying track, a conveying track support, a fixed plate, a first ball screw pair, a front bearing seat, a rear bearing seat, a first driving synchronous pulley, a second driven synchronous pulley, a first synchronous belt, a servo motor, a first guide rail, a sliding block and a spacing feeding plate, wherein the conveying track is connected with the conveying track support, the front bearing seat and the rear bearing seat are respectively and fixedly connected onto the fixed plate, the front end of the first ball screw pair is connected with the front bearing seat, the rear end of the first ball screw pair is connected with the rear bearing seat, the first driving synchronous pulley is connected with an output shaft of the servo motor, the second driven synchronous pulley is connected with the front end of the first ball screw pair, the first synchronous belt is connected between the second driven synchronous pulley and the first driving synchronous pulley, the first guide rail is fixedly connected onto the fixed plate, the sliding block is fixedly connected with a nut seat of the first ball screw pair, the bottom of the sliding block is connected with the first guide rail, the spacing feeding plate is fixedly connected with the top of the feeding plate, the feeding spacing plate is provided with a plurality of test tube accommodating grooves, the left end of the conveying track is close to the flat plate support, the flat plate is connected with the flat plate support, and the servo motor, and the flat plate support; the right end of the conveying track is aligned with the output end of the vibrating disk;

the blood test tube cap vacuum suction device comprises a first Y-axis slide rail assembly, a second ball screw pair, a left bearing seat, a right bearing seat, a lifting cylinder, a sliding plate, a first guide shaft, a second guide shaft, a third guide shaft, a fourth guide shaft, a first linear bearing, a second linear bearing, a third linear bearing, a fourth linear bearing, a suction nozzle connecting plate, a stainless steel suction nozzle, a second driving synchronous pulley, a second driven synchronous pulley, a second synchronous belt, a motor support, a driving motor and a vacuum generator, wherein the first Y-axis slide rail assembly and the second Y-axis slide rail assembly are fixedly connected to a frame side by side, the left bearing seat and the right bearing seat are fixedly connected to the frame respectively, the left end of a ball screw in the second ball screw pair is connected to the left bearing seat, the right end of the ball screw is connected to the right bearing seat, the sliding plate is fixedly connected to a nut seat in the second ball screw pair, the sliding plate is fixed to sliding blocks of the first Y-axis slide rail assembly and the second Y-axis slide rail assembly, the second driven slide rail is connected to a slide block in the second ball pair, the second synchronous pulley is connected to a second synchronous pulley, and the synchronous pulley is connected to the frame, and the synchronous pulley; the first linear bearing, the second linear bearing, the third linear bearing and the fourth linear bearing are respectively and fixedly connected with a sliding plate, the first guide shaft, the second guide shaft, the third guide shaft and the fourth guide shaft respectively penetrate through the first linear bearing, the second linear bearing, the third linear bearing and the fourth linear bearing, the lower ends of the first guide shaft, the second guide shaft, the third guide shaft and the fourth guide shaft are respectively and fixedly connected with a suction nozzle connecting plate, the suction nozzle connecting plate is positioned below the sliding plate, the lifting cylinder is fixedly connected with the sliding plate, and a telescopic rod of the lifting cylinder is fixedly connected with the suction nozzle connecting plate; the vacuum generator is connected to the sliding plate, and the stainless steel suction nozzle is fixedly connected with the suction nozzle connecting plate; the suction nozzle connecting plate is provided with a vent hole, and the vent hole is connected with the vacuum generator through a hose; the number of the stainless steel suction nozzles is several;

the stainless steel suction nozzle is provided with a fixing part, a cylindrical part and a circular plate, the fixing part is fixedly connected with the upper end of the cylindrical part, the circular plate is fixedly connected in an inner cavity of the cylindrical part, a test tube cap accommodating cavity is formed between the circular plate and the lower end opening of the cylindrical part, and the circular plate is provided with a through hole; the fixing part is fixedly connected with the suction nozzle connecting plate, and the cylindrical part is communicated with the vent hole of the suction nozzle connecting plate.

2. The blood test tube automatic capping machine of claim 1, wherein the spaced apart feed plate is provided with five test tube cap receiving slots, and the number of stainless steel suction nozzles is five.

3. The blood test tube automatic capping machine of claim 1, wherein the circular plate is provided with four through holes.

4. An automatic capping method using the blood test tube automatic capping machine according to claim 1, characterized by comprising the steps of:

preparing a tray for loading blood collection tubes;

an operator pulls a handle of the tray carrier by hand to move the tray carrier forwards, then places a tray filled with blood collection tubes on the tray carrier, pushes the tray carrier backwards to move to a space below the frame, and then starts a locking cylinder, and the locking cylinder drives a locking block to move upwards so as to prop against the bottom surface of the tray carrier;

starting the vibrating disk, and outputting the test tube caps by the vibrating disk to enter a channel of the conveying track;

starting a servo motor of the blood test tube spacing device, outputting a test tube cap at the left end of the conveying track and entering a test tube cap accommodating groove of the spacing feeding plate; the servo motor drives the distance-dividing feeding plate to move forwards, so that the distance-dividing feeding plate is close to the left end of the tray;

starting a driving motor of the blood test tube cap vacuum suction device, driving a sliding plate to move leftwards to the position above a separated feeding plate, then starting a lifting cylinder to enable a suction nozzle connecting plate to move downwards, sleeving the lower end of a stainless steel suction nozzle on the test tube cap in the separated feeding plate, starting a vacuum generator, and sucking the test tube cap by the stainless steel suction nozzle;

starting a lifting cylinder of the blood test tube cap vacuum suction device to enable a suction nozzle connecting plate to move upwards, driving a stainless steel suction nozzle to drive a test tube cap to move upwards, then starting a driving motor to enable a sliding plate to move rightwards to be above a tray, starting the lifting cylinder to enable the suction nozzle connecting plate to move downwards, driving the stainless steel suction nozzle to drive the test tube cap to move downwards, enabling the test tube cap to be buckled at the top opening of a blood collection tube in the tray, and applying downward pressure to the test tube cap by a circular plate in the stainless steel suction nozzle to finish cap covering operation;

the action of the vacuum generator enables the suction force of the stainless steel suction nozzle to disappear, the lifting cylinder is started to enable the suction nozzle connecting plate to move upwards, and the stainless steel suction nozzle is far away from the tray.

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