CN112355959A

CN112355959A - Automatic assembling and disassembling device for reaction tube

Info

Publication number: CN112355959A
Application number: CN202011061927.8A
Authority: CN
Inventors: 陈宇迪; 徐勇; 吴冠陈; 罗泽锋; 钱贤蔚
Original assignee: Ningbo Medical System Biotechnology Co Ltd
Current assignee: Ningbo Medical System Biotechnology Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-02-12

Abstract

The invention discloses an automatic reaction tube assembling and disassembling device, which comprises an installation plate, wherein the installation plate is respectively provided with: the rotary table is provided with a plurality of accommodating grooves, and the upper ends of the accommodating grooves are provided with internal threads; the rubber plug assembling and disassembling mechanism is used for automatically assembling or disassembling a rubber plug at the opening end of the reaction tube; the pressing cap assembling and disassembling mechanism is used for automatically assembling or disassembling the pressing cap at the upper end of the reaction tube and outside the rubber plug; the screw cap assembling and disassembling mechanism is used for automatically assembling or disassembling the screw cap at the upper end of the accommodating groove; and the turntable driving mechanism is used for driving each accommodating groove on the turntable to sequentially rotate to the rubber plug assembling and disassembling station, the pressing cap assembling and disassembling station and the threaded cap assembling and disassembling station. The automatic assembling and disassembling device for the reaction tube, disclosed by the invention, can realize automatic assembling and disassembling of the reaction tube and the turntable, namely, manual operation is not required in the assembling and disassembling process, and the working efficiency is high.

Description

Automatic assembling and disassembling device for reaction tube

Technical Field

The invention relates to the technical field of medical inspection instruments, in particular to an automatic reaction tube assembling and disassembling device.

Background

In the medical examination instrument in the in vitro diagnosis industry, the degree of automation of some instruments is not high. As shown in fig. 12, in the process of installing and fixing the reaction tube 100 and the accommodating groove 2.1 on the turntable 2, at first, the reaction tube 100 is inserted into the accommodating groove 2.1, then a rubber stopper 101 is pressed into the open end of the reaction tube 100, then a pressing cap 102 is pressed into the upper portion of the rubber stopper 101 to ensure that the rubber stopper 101 does not fall out, finally, a screw cap 103 is screwed into the open end of the accommodating groove 2.1, the outer side wall of the screw cap 103 is in threaded fit with the inner side wall of the accommodating groove 2.1, and the reaction tube 100 is pressed and limited after installation; the present operations for mounting and dismounting these components are generally performed manually by using a series of tools such as a torque wrench, a nipper, and an electric wrench. Not only complex operation, waste time and energy, the uniformity of dismantling and the stationarity of operation can't be guaranteed in manual operation moreover, influence the quality of sample easily, and easily cause various errors, very inconvenient in actual operation. Moreover, a series of mechanical tools are not suitable for frequent use in a laboratory, laboratory environment.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the automatic assembling and disassembling device for the reaction tube is provided, the reaction tube and the rotary table can be assembled and disassembled automatically, manual operation is not needed in the assembling and disassembling process, and the working efficiency is high.

The technical scheme adopted by the invention is as follows: the utility model provides an automatic device of installing and removing of reaction tube, includes the mounting panel, the mounting panel on be equipped with:

the rotary table is provided with a plurality of accommodating grooves for inserting reaction tubes along the circumferential direction, and inner side walls of opening ends of the accommodating grooves are provided with internal threads;

the rubber plug assembling and disassembling mechanism is used for automatically assembling or disassembling a rubber plug at the opening end of the reaction tube;

the pressing cap assembling and disassembling mechanism is used for automatically assembling or disassembling the pressing cap at the upper end of the reaction tube and outside the rubber plug;

the screw cap assembling and disassembling mechanism is used for automatically assembling or disassembling the screw cap at the upper end of the accommodating groove, and during installation, the lower end of the screw cap is pressed and abutted against the upper end of the pressing cap, so that the reaction tube and the accommodating groove are relatively static when the rotary disc rotates;

and the turntable driving mechanism is used for driving each accommodating groove on the turntable to sequentially rotate to the rubber plug assembling and disassembling station, the pressing cap assembling and disassembling station and the threaded cap assembling and disassembling station.

Compared with the prior art, the invention has the following advantages:

in the automatic assembling and disassembling mechanism for the reaction tube and the rotary table, after the corresponding reaction tube is inserted into each accommodating groove on the rotary table, subsequent rubber plug assembling and disassembling, pressing cap assembling and disassembling and screw cap assembling and disassembling are automatically carried out by corresponding mechanical equipment without manual operation, a series of operations such as stable clamping, placing, pressing, moving and the like are realized, and the stability and the assembling and disassembling work efficiency of the reaction tube and the rotary table after being fixed are greatly improved.

Furthermore, the rubber plug assembling and disassembling mechanism and the pressing cap assembling and disassembling mechanism are the same in structure and respectively comprise a first storage rack, a first support frame and a first connecting arm, the first connecting arm is rotatably arranged at the upper end of the first support frame, and the first support frame is provided with a lifting driving assembly for driving the first connecting arm to lift and a rotating driving assembly for driving the first connecting arm to horizontally swing; and the first connecting arm is provided with a chuck for clamping a rubber plug or a pressing cap and a clamping driving assembly for driving the chuck to open and close.

Preferably, the clamping driving assembly comprises a rotary driver and two connecting blocks, an output shaft of the rotary driver is connected with a driving rod, and a cam block is arranged on the side wall of the driving rod; the two connecting blocks are arranged on the first connecting arm in an opposite or back-to-back sliding manner, the chuck comprises two clamping blocks, the upper ends of the two clamping blocks are respectively connected to the corresponding connecting blocks, and the cam block is matched between the two connecting blocks; and the first connecting arm is also provided with a resetting element for driving the connecting block to reset. This drive simple structure orders about the closure of double-layered pipe piece through the rotation of cam, flexible operation to improve the rubber buffer, compress tightly the stability of getting the operation of cap's clamp, flexibility.

Furthermore, the screw cap assembling and disassembling mechanism comprises a second storage rack, a second support frame and a second connecting arm, the second connecting arm is rotatably arranged at the upper end of the second support frame, and the second support frame is provided with a lifting driving assembly for driving the second connecting arm to lift and a rotating driving assembly for driving the second connecting arm to horizontally swing; and the second connecting arm is provided with a spiral driving assembly for driving the threaded cap to be spirally matched with the opening end of the accommodating groove.

Preferably, the screw driving assembly comprises a chimeric piece matched with a preset plug hole on the screw cap and a rotary driver driving the chimeric piece to rotate; the second connecting arm is further provided with a limiting part, the limiting part is arranged outside the embedded part, and when the embedded part is matched with the threaded cap in a plug-in mounting mode, the limiting part is clamped and limited on the outer side wall of the threaded cap.

Preferably again, the lifting driving assembly comprises a first conveyor belt and a first driver for driving the first conveyor belt to run in the vertical direction, a lifting rod is arranged at one end, away from the chuck, of the first connecting arm, the lower end of the lifting rod is connected with the first conveyor belt, and a limiting hole for the lifting rod to pass through is formed in the upper end of the first support frame.

Preferably, the rotation driving assembly comprises a second conveyor belt and a second driver, the second driver is mounted on the first support frame, a second driving wheel is arranged on an output shaft of the second driver, a connecting sleeve is rotatably arranged in the limiting hole, a second driven wheel is arranged at the upper end of the connecting sleeve, and the second driven wheel is sleeved outside the lifting rod; the outer side wall of the lifting rod is provided with a guide groove extending along the axial direction of the lifting rod, and the inner side wall of the connecting sleeve is provided with a guide protrusion matched with the guide groove. In the improved structure, the outer side wall of the lifting rod is provided with a corresponding guide groove, the connecting sleeve is provided with a guide bulge, and when the lifting rod vertically slides, the guide bulge can play a role in guiding and limiting, so that the lifting rod can slide up and down without deflection; when the connecting sleeve rotates, the limiting bulge can play a role in linkage to drive the lifting rod to synchronously rotate.

Preferably again, carousel actuating mechanism include driving motor and third conveyer belt, rotate on the mounting panel and wear to be equipped with the connecting axle, the upper end and the carousel of connecting axle are connected, the lower extreme of connecting axle passes through third conveyer belt and driving motor's output shaft. The rotation of carousel passes through driving motor and corresponding conveyer belt drive in this structure, simple structure, and the drive is stable, and speed is controllable, guarantees that each reaction tube on the carousel accurately rotates to corresponding station in proper order.

Drawings

FIG. 1 is a schematic view of an automatic reaction tube assembling/disassembling apparatus according to the present invention.

FIG. 2 is another perspective view of the automatic reaction tube assembling/disassembling device according to the present invention.

Fig. 3 is a structural view of the rubber stopper attaching and detaching mechanism and the clincher attaching and detaching mechanism of the present invention on the mounting plate.

Fig. 4 is a structural view of the rubber stopper attaching and detaching mechanism and the pressing cap attaching and detaching mechanism in the present invention.

Fig. 5 is a block diagram of the first link arm and clamp drive assembly of the present invention.

Fig. 6 is a structural view of the drive lever in the present invention.

Fig. 7 is a structural view of the screw cap attaching and detaching mechanism of the present invention.

Fig. 8 is a structural view of the screw driving unit in the present invention.

Fig. 9 is another angular structural view of the screw driving unit in the present invention.

Fig. 10 is a structural view of the elevation drive unit and the rotation drive unit according to the present invention.

Fig. 11 is another angle structure diagram of the rubber stopper attaching and detaching mechanism and the pressing cap attaching and detaching mechanism in the present invention.

FIG. 12 is a view showing a reaction tube and a turntable mounting/positioning structure in a disassembled state.

Wherein, 100-reaction tube; 01-a rubber plug assembling and disassembling mechanism, 02-a pressing assembling and disassembling mechanism, 03-a screw cap assembling and disassembling mechanism and 04-a turntable driving mechanism;

1-mounting plate, 2-rotary table, 2.1-receiving groove, 3-first storage rack, 4-first support rack, 5-first connecting arm, 6-rotary drive, 7-connecting block, 8-drive rod, 9-cam block, 10-clamping block, 11-reset element, 12-second storage rack, 13-second support rack, 14-second connecting arm, 15-embedded element, 16-rotary drive, 17-limiting element, 18-first conveyor belt, 19-first drive, 20-lifting rod, 20.1-guide groove, 21-second conveyor belt, 22-second drive, 23-second drive wheel, 24-connecting sleeve, 25-second driven wheel, 26-drive motor, 27-third conveyor belt, 28-connecting shaft, 29-first driving wheel, 30-first driven wheel, 31-mounting block, 32-fixing block, 33-third driven wheel, 35-mounting sleeve, 36-sawtooth protrusion, 37-first optical coupler, 38-second light chopper, 39-second optical coupler, 40-third light chopper, 41-third optical coupler, 42-detecting electrode, 43-resetting light converter and 44-optical coupler; 45-reset blocking piece, 46-reset photoelectric signal sensor.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the description of the present invention, it should be noted that the terms "open end", "upper end", "lower end", "outer side wall", "inner side wall", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, the terms "first", "second", and "third" are used for convenience of description, for convenience of distinction, and have no specific meaning.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 12, the present invention provides an automatic reaction tube mounting and dismounting device, which comprises a horizontal mounting plate 1, wherein the mounting plate 1 is respectively provided with: the reaction tube inserting device comprises a rotary table 2, wherein a plurality of accommodating grooves 2.1 for inserting the reaction tubes 100 are formed in the upper end face of the rotary table 2 along the circumferential direction, and internal threads are formed in the inner side wall of the opening end of each accommodating groove 2.1;

the rubber stopper installs and removes the organization 01, is used for installing or dismantling the rubber stopper 101 automatically in the open end of the reaction tube 100, in this structure, after the reaction tube 100 containing sample of detection is inserted and put in the containing tank 2.1, install the corresponding rubber stopper 101 in the open end of the reaction tube 100, prevent the sample in the reaction tube 100 from overflowing while rotating the operation of the rotary table 2;

the pressing cap assembling and disassembling mechanism 02 is used for automatically assembling or disassembling the pressing cap 102 at the upper end of the reaction tube 100 and outside the rubber plug 101, and in the structure, after the rubber plug 101 is installed at the opening end of the reaction tube 100, the pressing cap 102 is also installed at the upper end of the reaction tube to prevent the rubber plug 101 from falling out;

the screw cap assembling and disassembling mechanism 03 is used for automatically assembling or disassembling the screw cap 103 at the upper end of the accommodating groove 2.1, and when the screw cap 103 is installed, the lower end of the screw cap 103 is pressed against the upper end of the pressing cap 102, so that the reaction tube 100 and the accommodating groove 2.1 are relatively static when the rotary disc 2 rotates; therefore, the rotary disc 2 is ensured to rotate and operate, the sample in the reaction tube 100 is driven to rotate or shake relatively between the reaction tube 100 and the accommodating groove 2.1 in the centrifugal layering process, and the stability and the sealing property are improved;

and the turntable driving mechanism 04 is used for driving each accommodating groove 2.1 on the turntable 2 to sequentially rotate to the rubber plug assembling and disassembling station, the pressing cap assembling and disassembling station and the threaded cap assembling and disassembling station.

In the structure, when the reaction tube 100 and the turntable 2 can be positioned by the corresponding assembling and disassembling mechanisms, the corresponding rubber plugs 101, the pressing caps 102 and the threaded caps 103 are automatically assembled or disassembled, the mode of manual installation and operation of combining with a spanner and other instruments in the prior art is replaced, the automation degree is high, the labor force is saved, and the assembling and disassembling efficiency is high.

As shown in fig. 2, the turntable driving mechanism 04 includes a driving motor 26 and a fourth conveyor belt 27, a connecting shaft 28 is rotatably inserted in the mounting plate 1, an upper end of the connecting shaft 28 is connected to the turntable 2, and a lower end of the connecting shaft 28 is connected to an output shaft of the driving motor 26 through the fourth conveyor belt 27. Specifically, a driving motor 26 is installed at the lower end of the installation plate 1, an output shaft of the driving motor 26 is connected with a third driving wheel (not shown in the figure), a lower end of the connecting shaft 28 is connected with a third driven wheel 33, and two ends of the third conveyor belt 27 are respectively matched with the outer portions of the third driving wheel and the third driven wheel 33, so that the driving motor 26 drives the rotary table 2 to rotate circumferentially through the third conveyor belt 27.

As shown in fig. 3-6, in the present embodiment, the rubber stopper mounting and dismounting mechanism 01 and the pressing cap mounting and dismounting mechanism 02 have the same structure, and each of them includes a first storage rack 3, a first support rack 4 and a first connecting arm 5, wherein the first storage rack 3 is provided with a plurality of mounting slots for temporarily storing corresponding rubber stoppers 101 or pressing caps 102; the first connecting arm 5 is rotatably arranged at the upper end of the first support frame 4, and the first support frame 4 is provided with a lifting driving assembly for driving the first connecting arm 5 to lift and a rotating driving assembly for driving the first connecting arm 5 to horizontally swing; the first connecting arm 5 is provided with a collet for gripping the rubber stopper 101 or the pressing cap 102, and a clamping driving assembly for driving the collet to open and close.

Further, as shown in fig. 5, the clamping driving assembly includes: the device comprises a rotary driver 6 and two connecting blocks 7, wherein an output shaft of the rotary driver 6 is connected with a driving rod 8, and a cam block 9 is arranged on the side wall of the driving rod 8; a fixed block 32 is further provided on the first connecting arm 5, and the other end of the driving rod 8 is rotatably fitted on the fixed block 32. In particular, the cam block 9 is of an elliptical configuration, as shown in figure 6. The two connecting blocks 7 are arranged on the first connecting arm 5 in an opposite or reverse sliding manner, and specifically, the two connecting blocks 7 are arranged on the first connecting arm 5 through corresponding linear sliding rails; the chuck in the embodiment comprises two clamping blocks 10, the upper ends of the two clamping blocks 10 are respectively connected to the corresponding connecting blocks 7, and the cam block 9 is matched between the two connecting blocks 7; the connecting arm 5 is also provided with a resetting element 11 for resetting the connecting block 7. Specifically, the first connecting arm 5 is provided with a corresponding mounting hole 5.1, the upper ends of the two clamping blocks 10 penetrate through the mounting hole 5.1, and an elastic member is arranged between the outer side wall of each clamping block 10 and the side wall of the mounting hole 5.1 to form the reset element 11. In this embodiment, the elastic member is preferably a cylindrical spring, but in other embodiments, the elastic member may be other elastic elements, such as a rubber bellows, an elastic gasket, and the like.

In the structure, the rotary driver 6 drives the driving rod 8 to rotate, when the two connecting blocks 7 are rotated to enable the two sides of the long edge of the cam block 9 to abut against the space between the two connecting blocks 7, the two connecting blocks 7 are unfolded outwards, the elastic part is in a compression state at the moment, the two separated connecting blocks 7 drive the two clamping blocks 10 to separate, and at the moment, the two clamping blocks 10 are separated from the rubber plug 101 or the pressing cap 102; when the rotary driver 6 continues to rotate until the two short side edges of the cam block 9 abut against between the two connecting blocks 7, the distance is shortened, and the two clamping blocks 10 move close to each other under the action of the elastic force of the elastic piece, so that the rubber plug 101 or the upper end of the pressing cap 101 is clamped and grabbed.

Furthermore, as shown in fig. 7, the screw cap assembling and disassembling mechanism 03 includes a second storage rack 12, a second support rack 13 and a second connecting arm 14, the second connecting arm 14 is rotatably disposed at the upper end of the second support rack 13, and the second support rack 13 is provided with a lifting driving component for driving the second connecting arm 14 to lift and a rotation driving component for driving the second connecting arm 14 to horizontally swing; the second connecting arm 14 is provided with a screw driving component for driving the screw cap 103 to be screwed in the opening end of the accommodating groove 2.1.

On the other hand, as shown in fig. 8 and 9, the screw driving assembly includes a fitting member 15 that is engaged with a predetermined insertion hole of the screw cap 103, and a rotary driver 16 that drives the fitting member 15 to rotate, and the screw driver 16 is preferably a stepping motor; the second connecting arm 14 is further provided with a limiting member 17, the limiting member 17 is arranged outside the embedded member 15, and when the embedded member 15 is inserted into the threaded cap 103, the limiting member 17 is clamped and limited on the outer side wall of the threaded cap 103.

The principle of the mounting and dismounting of the threaded cap is as follows:

when the reaction tube 100 provided with the rubber plug 101 and the pressing cap 102 rotates to the screw cap mounting and dismounting station, the rotating driving assembly drives the second connecting arm 14 to rotate until the embedded part 15 corresponds to the screw cap 103 at the corresponding position on the second storage rack 12, the second connecting arm 14 descends until the embedded part is in plug-in fit, the limiting part 17 is clamped and limited on the outer side wall of the screw cap 103, then the lifting driving assembly drives the first connecting arm 5 to reversely ascend, the second connecting arm 5 reversely rotates towards the screw cap mounting and dismounting station, after the positioning, the second connecting arm 14 descends again until the screw cap 103 corresponds to the accommodating groove 2.1, the rotating driving assembly drives the embedded part 15 to drive the screw cap 1.3 to rotate, and the screw cap 103 is in screw fit with the upper end of the accommodating groove 2.1. In the structure, the outer side wall of the threaded cap 103 is provided with an external thread which is firstly matched with the internal thread at the opening end of the accommodating groove 2.1; and after the screw cap 103 is screwed up and matched, the reaction tube 100 is compressed and limited, and when the turntable 2 rotates, the reaction tube 100 cannot shake in the accommodating groove 2.1. When the storage rack is disassembled, the steps are reversed from the installation steps, and finally the disassembled threaded cap 103 is replaced on the corresponding second storage rack 12.

As shown in fig. 10, the lifting drive assembly according to the above structure includes:

the first conveyor belt 18 and the first driver 19 that drives the first conveyor belt 18 to run in the vertical direction, the end of the first connecting arm 5 away from the chuck is provided with a lifting rod 20, the lower end of the lifting rod 20 is connected with the first conveyor belt 18, and the upper end of the first support frame 4 is provided with a limiting hole for the lifting rod 20 to pass through. In the structure, a first driver 19 is transversely installed at the lower end of a first support frame 4, a first driving wheel 29 is installed on an output shaft of the first driver 19, a first driven wheel 30 is rotatably connected to the upper end of the first support frame 4, a first conveyor belt 18 is matched with the outer portions of the first driving wheel 29 and the first driven wheel 30, and the lower end of a lifting rod 20 is fixedly connected with the first conveyor belt 18 through a corresponding installation block 31; thereby realizing the up-and-down lifting operation of the first driver 19 which drives the lifting rod 20 through the first conveyor belt 18. And the first driver 19 in this structure is a stepping motor, and can control and limit the up-and-down movement height of the lifting rod 20 according to the step pitch facility. In addition, in order to ensure that the lifting rod 20 can be located at the same height position in the initial state, a reset blocking piece 45 is further arranged on the mounting block 31, a corresponding reset photoelectric signal sensor 46 is arranged at the upper end of the first support frame 4, and the first driver 19 drives the lifting rod 20 to move upwards when the lifting rod is started or restarted due to a fault, until the reset photoelectric signal sensor 46 receives a signal of the reset blocking piece 45, namely, the lifting rod is at the initial position, so that the follow-up work is performed sequentially and continuously.

As shown in fig. 10, the rotational drive assembly includes:

the second conveyor belt 21 and the second driver 22, the second driver 22 is installed on the first support frame 4, the output shaft of the second driver 22 is provided with a second driving wheel 23, the limiting hole is rotatably provided with a connecting sleeve 24, the upper end of the connecting sleeve 24 is provided with a second driven wheel 25, and the second driven wheel 25 is sleeved outside the lifting rod 20; the outer side wall of the lifting rod 20 is provided with a guide groove 20.1 extending along the axial direction of the lifting rod, and the inner side wall of the connecting sleeve 24 is provided with a guide projection matched with the guide groove 20.1. In the structure, the second conveyor belt 21 drives the connecting sleeve 24 to rotate, and under the guiding driving action of the corresponding guide protrusion on the inner side wall of the connecting sleeve 24, the lifting rod 20 can synchronously rotate, and the second driver 22 in the structure is a stepping motor.

In this structure, the principle of mounting and dismounting the rubber stopper 101 or the pressing cap 102 is as follows:

when the turntable 2 drives the reaction tube 100 to rotate to a rubber plug assembling and disassembling station or a pressing cap assembling and disassembling station, the rotation driving assembly drives the first connecting arm 5 to rotate until the two clamping blocks 10 correspond to the upper ends of the rubber plugs 101 or the pressing caps 102 at corresponding positions on the first storage rack 3, and then the lifting driving assembly drives the first connecting arm 5 to descend to correspond to the clamping position at the upper ends of the rubber plugs 101 or the pressing caps 102; the clamping driving assembly drives the clamping block 10 to clamp, so that the rubber plug 101 or the pressing cap 102 is clamped and fixed; after clamping and fixing, the lifting rod 20 reversely ascends and moves to an initial position, the rotating assembly drives the first connecting arm 5 to reversely ascend to the initial position towards the connecting arm 5, then the second driving assembly drives the connecting arm 5 to rotate towards the rubber plug assembling and disassembling station or the pressing cap assembling and disassembling station, the lifting rod 20 descends after the connecting arm is in place until the rubber plug 101 or the pressing cap 102 is pressed at a corresponding position on the reaction tube 100, and the rubber plug 101 or the pressing cap 102 is installed. When reaction tube 100 needs to be dismantled from carousel 2, the theory of operation is similar with the installation, only the order is reversed can, namely, rotatory dismantlement screw cap 103 of earlier, dismantle again and compress tightly cap 102, it can to pull out rubber buffer 101 at last.

In the above-described structure, as shown in fig. 11, in the process of detaching the clamp cap 102, in order to detect whether the clamp cap 102 is stuck to the reaction tube 102, a corresponding detection photoelectric sensor 33 is arranged on the first storage rack 3 on which the pressing cap 102 is arranged, the detecting photoelectric sensor 33 is used for detecting whether the pressing cap 102 is adhered together with the reaction tube 100 when moving upwards, if the adhesion is detected, the main controller in the whole system controls the rotary driving assembly to drive the first connecting arm 5 to swing left and right at a preset frequency to separate the pressing cap 102 from the reaction tube 100, and after the pressing cap 102 is detached, the corresponding first connecting wall 5 drives the clamping blocks 10 to rotate reversely to the upper side of the first storage rack 3, the clamping blocks 10 are separated, and the pressing caps 1 are placed in the corresponding mounting holes on the first storage rack 3 to wait for the next use.

It should be noted that, since the rubber stopper 101 in the present structure is used once and needs to be replaced again, a waste storage pressing box 34 is placed on the mounting plate 1 at a position corresponding to the rubber stopper attaching and detaching mechanism 01, and the rubber stopper 101 cannot be replaced on the corresponding first storage shelf 3 after being detached, and is discarded in the waste storage box 34.

On the other hand, in order to improve the automatic control of the whole pick-and-place process, the continuous and smooth connection among all the actions is realized; in this embodiment, a first sensing unit for sensing the rotation angle of the turntable 2 is disposed on the mounting plate 1; the first support frame 4 and the second support frame 13 are provided with second sensing units for sensing the rotation angle of the first connecting arm 5 or the second connecting arm 14; the first connecting arm 5 is provided with a third sensing unit for sensing the opening or closing of the clamping block 10, the first sensing unit, the second sensing unit and the third sensing unit are respectively in signal connection with a main controller on the reaction tube automatic taking and placing device, and the main controller is used for controlling the operation of each driving assembly.

More specifically, as shown in fig. 3, the first sensing unit includes a mounting sleeve 35, the mounting sleeve 35 is sleeved outside the connecting shaft 28, and the mounting sleeve 35 is located between the mounting plate 1 and the turntable 2; specifically, the even sawtooth arch 36 that is equipped with of circumference is followed to the outward flange of this installation cover, it is corresponding to install on mounting panel 1 and be used for responding to the installation and sheathe in the first opto-coupler 37 of sawtooth arch 36, along with the rotation of carousel 2, when each sawtooth arch 36 on the installation cover 35 moves to the recess of first opto-coupler 37 in, corresponding signal can be acquireed to first opto-coupler 37, and with its signal transfer to main control unit, then the first driving motor 26 stall of main control unit control, wait for going on of next process.

The second sensing unit comprises a second chopping sheet 38 and a second optical coupler 39, the second chopping sheet 38 is connected to the lower end of the connecting sleeve 24, when the second driver 22 drives the lifting rod 20 to rotate, the second chopping sheet 38 rotates together, and the second optical coupler 39 can receive corresponding signals in the rotating process; and the second driver 22 is a stepping motor, the rotating step pitch of which can be precisely controlled, so that the reciprocating operation of the first connecting arm 5 and the second connecting arm 14 between the corresponding storage rack and the corresponding station on the turntable 2 can be accurately controlled through the combination of the stepping motor and the second sensing unit in the structure, and the automatic assembly and disassembly of rubber plugs, compression assembly and disassembly and the automation of threaded cap assembly and disassembly are ensured.

As shown in fig. 5, the third sensing unit includes a third light chopper 40 and a third optical coupler 41, wherein the third light chopper 340 is axially mounted on the output shaft of the rotary driver 6, the third optical coupler 40 is a semicircular light chopper structure, a gap is formed in the middle of the semicircular light chopper structure, and the third optical coupler 41 is mounted on the first connecting arm 5 for sensing the position of the gap in the middle of the third light chopper 40. The first connecting arm 5 is further provided with a detection electrode 42 for determining the distance between the two connecting blocks 7, and as shown in fig. 5, the two detection electrodes 42 are respectively provided on the two connecting blocks 7; and the detection electrode can be two adjustable electrodes, or an adjustable electrode and a fixed electrode, and fixed electrode and adjustable electrode all can the circular telegram, and adjustable electrode can be flexible length when conflicting, and in this embodiment, when actuating lever 8 rotated to two clamp splice 10 and be the open mode, two detection electrode 42 were the off-state, can directly judge on the clamp splice not have rubber buffer 101 or compress tightly cap 102 this moment. On the contrary, when the rubber plug 101 or the pressing cap 102 is located between the two clamping blocks 10, the two detection electrodes 42 are in the closed state, and the middle gap of the third light chopper 40 corresponds to the third optical coupler 41, so that whether the corresponding rubber plug 101 or the corresponding pressing cap 102 is clamped on the clamping block 10 can be more accurately determined.

In addition, as shown in fig. 2, a reset chopper 42 and a reset optical coupler 43 fixed on the mounting plate 1 are coaxially sleeved on the connecting shaft 28 at the lower end portion of the mounting plate 1, and the reset optical coupler 43 is in signal connection with the main controller, so that the output shaft of the driving motor 26 is located at the initial position by the detection induction of the reset optical coupler 43 and the reset chopper 42 at each power-on or fault alarm, thereby ensuring that the first optical coupler 37 accurately finds the corresponding sawtooth protrusion 36 at the initial position.

The drive referred to in the above is preferably a stepper motor, but may of course be other types of drive elements in other embodiments. The optical couplers referred to in the above are all photoelectric signal sensors.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a device is installed and removed automatically to reaction tube, includes mounting panel (1), its characterized in that: the mounting plate (1) is provided with:

the reaction tube inserting device comprises a rotary table (2), wherein a plurality of accommodating grooves (2.1) for inserting reaction tubes (100) are formed in the rotary table (2) along the circumferential direction, and internal threads are formed in the inner side wall of the opening end of each accommodating groove (2.1);

a rubber stopper mounting and dismounting mechanism (01) for automatically mounting or dismounting a rubber stopper (101) at the opening end of the reaction tube (100);

a pressing cap assembling and disassembling mechanism (02) which is used for automatically assembling or disassembling the pressing cap (102) at the upper end of the reaction tube (100) and positioned outside the rubber stopper (101);

the screw cap assembling and disassembling mechanism (03) is used for automatically assembling or disassembling the screw cap (103) at the upper end of the accommodating groove (2.1), and during installation, the lower end of the screw cap (103) is pressed against the upper end of the pressing cap (102) in a pressing mode, so that the reaction tube (100) and the accommodating groove (2.1) are relatively static when the rotary disc (2) rotates;

and the turntable driving mechanism (04) is used for driving each accommodating groove (2.1) on the turntable (2) to rotate to the rubber plug assembling and disassembling station, the pressing cap assembling and disassembling station and the threaded cap assembling and disassembling station in sequence.

2. The automatic reaction tube assembling and disassembling device according to claim 1, characterized in that: the rubber plug assembling and disassembling mechanism (01) and the pressing cap assembling and disassembling mechanism (02) are identical in structure and respectively comprise a first storage rack (3), a first support frame (4) and a first connecting arm (5), the first connecting arm (5) is rotatably arranged at the upper end of the first support frame (4), and a lifting driving assembly for driving the first connecting arm (5) to lift and a rotating driving assembly for driving the first connecting arm (5) to horizontally swing are arranged on the first support frame (4); the first connecting arm (5) is provided with a chuck for clamping a rubber plug (101) or a pressing cap (102) and a clamping driving assembly for driving the chuck to open and close.

3. The automatic reaction tube assembling and disassembling device according to claim 2, characterized in that: the clamping driving assembly comprises a rotary driver (6) and two connecting blocks (7), an output shaft of the rotary driver (6) is connected with a driving rod (8), and a cam block (9) is arranged on the side wall of the driving rod (8); the two connecting blocks (7) are arranged on the first connecting arm (5) in an opposite or reverse sliding mode, the chuck comprises two clamping blocks (10), the upper ends of the two clamping blocks (10) are respectively connected to the corresponding connecting blocks (7), and the cam block (9) is matched between the two connecting blocks (7); and the first connecting arm (5) is also provided with a resetting element (11) for driving the connecting block (7) to reset.

4. The automatic reaction tube assembling and disassembling device according to claim 1, characterized in that: the threaded cap assembling and disassembling mechanism (03) comprises a second storage rack (12), a second supporting frame (13) and a second connecting arm (14), the second connecting arm (14) is rotatably arranged at the upper end of the second supporting frame (13), and the second supporting frame (13) is provided with a lifting driving assembly for driving the second connecting arm (14) to lift and a rotating driving assembly for driving the second connecting arm (14) to horizontally swing; and a screw driving component for driving the threaded cap (103) to be in screw fit with the opening end of the accommodating groove (2.1) is arranged on the second connecting arm (14).

5. The automatic reaction tube assembling and disassembling device according to claim 4, wherein: the screw driving component comprises a mosaic piece (15) matched with a preset plug hole on the screw cap (103) and a rotary driver (16) driving the mosaic piece (15) to rotate; the second connecting arm (14) is further provided with a limiting piece (17), the limiting piece (17) is arranged outside the embedded piece (15), and when the embedded piece (15) is assembled with the threaded cap (103) in an inserting mode, the limiting piece (17) is clamped and limited on the outer side wall of the threaded cap (103).

6. The automatic reaction tube assembling and disassembling device according to claim 2, characterized in that: the lifting driving assembly comprises a first conveying belt (18) and a first driver (19) for driving the first conveying belt (18) to run in the vertical direction, a lifting rod (20) is arranged at one end, far away from the chuck, of the first connecting arm (5), the lower end of the lifting rod (20) is connected with the first conveying belt (18), and a limiting hole for the lifting rod (20) to penetrate through is formed in the upper end of the first supporting frame (4).

7. The automatic reaction tube assembling and disassembling device according to claim 6, wherein: the rotary driving assembly comprises a second conveyor belt (21) and a second driver (22), the second driver (22) is installed on the first support frame (4), a second driving wheel (23) is arranged on an output shaft of the second driver (22), a connecting sleeve (24) is rotatably arranged in the limiting hole, a second driven wheel (25) is arranged at the upper end of the connecting sleeve (24), and the second driven wheel (25) is sleeved outside the lifting rod (20); the outer side wall of the lifting rod (20) is provided with a guide groove (20.1) extending along the axial direction of the lifting rod, and the inner side wall of the connecting sleeve (24) is provided with a guide protrusion matched with the guide groove (20.1).

8. The automatic reaction tube assembling and disassembling device according to claim 1, characterized in that: carousel actuating mechanism (04) including driving motor (26) and third conveyer belt (27), rotate on mounting panel (1) and wear to be equipped with connecting axle (28), the upper end and the carousel (2) of connecting axle (28) are connected, the lower extreme of connecting axle (28) passes through the output shaft of third conveyer belt (27) and driving motor (26).