CN115231490A - Rotary cap pulling mechanism - Google Patents
Rotary cap pulling mechanism Download PDFInfo
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- CN115231490A CN115231490A CN202211007997.4A CN202211007997A CN115231490A CN 115231490 A CN115231490 A CN 115231490A CN 202211007997 A CN202211007997 A CN 202211007997A CN 115231490 A CN115231490 A CN 115231490A
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- test tube
- motor
- connecting shaft
- rotary
- cap pulling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B7/00—Hand- or power-operated devices for opening closed containers
- B67B7/14—Hand- or power-operated devices for opening closed containers for removing tightly-fitting lids or covers, e.g. of shoe-polish tins, by gripping and rotating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/0099—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor comprising robots or similar manipulators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
- G01N2035/0401—Sample carriers, cuvettes or reaction vessels
- G01N2035/0403—Sample carriers with closing or sealing means
- G01N2035/0405—Sample carriers with closing or sealing means manipulating closing or opening means, e.g. stoppers, screw caps, lids or covers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Devices For Opening Bottles Or Cans (AREA)
Abstract
The invention discloses a rotary cap pulling mechanism which comprises a cap pulling bottom plate, wherein the cap pulling bottom plate is supported and positioned through a cap pulling bottom plate mounting column, a rotary cap pulling part is arranged on the cap pulling bottom plate, the cap pulling bottom plate supports and positions the rotary cap pulling part, the rotary cap pulling part comprises a connecting shaft motor, the connecting shaft motor is started to generate a rotating step angle to drive a bearing to press a test tube, a speed reducing motor is arranged to act on a driving wheel, and the driving wheel drives the test tube to rotate under the action of rotating friction force; the rotary cap pulling mechanism comprises a mechanical arm, and the mechanical arm picks or places a test tube cap of a test tube in the rotary process. According to the invention, the test tube is rotated in advance before the cap is automatically removed, the original sliding friction is changed into rolling friction, and the friction force between the tube body of the test tube and the cap body is reduced, so that different test tubes can be well treated by effectively removing the cap.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a rotary cover pulling mechanism.
Background
The microfluidic reagent disk is a system for controlling the flow of fluid with a tiny volume in a tiny channel, and can realize the preparation, reaction, separation and the like of a sample and a reagent through capillary action, centrifugation and other modes. The immunofluorescence cytochemistry is based on the principle of antigen-antibody reaction, firstly, the known antigen or antibody is marked with fluorescein to prepare a fluorescent marker, and then the fluorescent antibody (or antigen) is used as a molecular probe to examine the corresponding antigen (or antibody) in cells or tissues. The antigen-antibody complex formed in the cell or tissue contains fluorescein, and the fluorescein is irradiated by the exciting light, so that the fluorescein emits bright fluorescence (yellow green or orange red) under the irradiation of the exciting light, the cell or tissue where the fluorescence is located can be seen, and thus the nature and the location of the antigen or antibody can be determined, and the concentration of the substance to be detected can be determined by measuring the fluorescence intensity by using a quantitative technology. In the reaction process of the microfluidic reagent disk, the chip needs to be incubated, and the fixed temperature is kept to ensure the consistency of the reaction. The microfluidic reagent disk needs to be tested and operated according to a certain flow, needs to rotate at 5500rpm/min for centrifugation, and performs liquid distribution and the like through 3000rpm rotation. In the testing process, after the stepping motor drives the stepping motor to rotate to a special position, the in-out bin motor moves back and forth and is matched with light path light flicker for detection. In the prior art, in the process of automatically detecting the uniformly mixed test solution, the soft plug of the test tube cover body and the outer rubber shell of the cover body are not firmly matched, and the soft plug of the cover body and the outer rubber shell of the cover body are separated when the cover is automatically removed; and the lid of test tube cover body is sliding friction with the process of pulling out the lid, and the frictional force between test tube body and the lid is great, leads to the lid easily and pulls out the misoperation of lid.
The invention patent application with the application number of CN201710336634.8 discloses an automatic sample bottle mixing and cover pulling device, which comprises a test tube rack and at least two support columns arranged in parallel, wherein mounting holes are uniformly distributed in the test tube rack, the mounting holes penetrate through the test tube rack, fixing claws for fixing sample bottles are arranged in the mounting holes, the bottoms of the fixing claws are connected with motors, the motors are connected with bearing plates, and the bottoms of the bearing plates are connected with lifting devices; the test tube rack is characterized in that through holes are formed in the support columns, the through holes are located in the upper portions of the support columns, vent plates are arranged between the support columns, two ends of each vent plate are connected with the through holes in a rolling mode, the vent plates are located right above the test tube rack, suction holes corresponding to the placing holes are formed in the bottom surfaces of the vent plates, air tubes are connected to the center holes of one ends of the vent plates, and air channels communicated with the suction holes and the air tubes are formed in the vent plates; the other end of the air pipe is connected with a vacuum system. This scheme is through setting up test-tube rack, stationary dog, motor etc. through mutually supporting between each article, has realized once only mixing and the work of pulling out the lid to big batch sample bottle. But in the cap pulling process of this scheme, the friction between test tube body and the lid still is sliding friction, is unfavorable for automatic test tube cap pulling's test operation.
Disclosure of Invention
The invention aims to solve the existing problems and provides a rotary cap pulling mechanism which comprises a cap pulling bottom plate, wherein the cap pulling bottom plate is supported and positioned through a cap pulling bottom plate mounting column, a rotary cap pulling part is arranged on the cap pulling bottom plate, the cap pulling bottom plate supports and positions the rotary cap pulling part, the rotary cap pulling part comprises a connecting shaft motor, the connecting shaft motor is started to generate a rotation step angle to drive a bearing to press a test tube, a speed reducing motor is arranged to act on a driving wheel, and the driving wheel drives the test tube to rotate under the action of rotation friction force; the rotary cap pulling mechanism comprises a mechanical arm, and the mechanical arm picks or places a test tube cap of a test tube in the rotary process. According to the invention, the test tube is rotated in advance before the cap is automatically removed, the original sliding friction is changed into rolling friction, and the friction force between the tube body of the test tube and the cap body is reduced, so that different test tubes can be effectively removed.
The technical scheme adopted by the invention is as follows:
the invention discloses a using method of a rotary cap pulling mechanism, which comprises a test tube positioning mechanism and a test tube rotating mechanism, wherein the test tube positioning mechanism and the test tube rotating mechanism are matched with a mechanical arm to complete cap pulling or capping operation of a test tube cap, and the using method comprises the following steps:
s1: the test tube positioning mechanism comprises a connecting shaft motor, a holding advance and retreat separation blade, a first groove-shaped optocoupler, a second groove-shaped optocoupler and a diffuse reflection optocoupler, the rotary cover pulling mechanism is started, the connecting shaft motor moves back and forth twice, whether a test tube exists in a test tube fixing block for placing the test tube or not is detected, the first groove-shaped optocoupler and the diffuse reflection optocoupler are triggered twice through the holding advance and retreat separation blade, no information feedback is detected by the first groove-shaped optocoupler and the diffuse reflection optocoupler, the test tube is judged to be absent at the test tube fixing block, and the next step of action is carried out; the first groove-shaped optical coupler and the diffuse reflection optical coupler feed back detection information, a test tube is judged to be arranged at the test tube fixing block, the test tube positioning mechanism gives an alarm prompt, and the detection process is stopped;
s2: the test tube positioning mechanism judges that no test tube exists at the test tube fixing block, the connecting shaft motor performs reset motion, the holding advance and retreat blocking piece triggers the second groove-shaped optocoupler to be successfully reset, the manipulator grabs the test tube on the test tube rack and performs mixing operation, detection liquid in the test tube is mixed, the test tube after the mixing operation is placed in a hole of the test tube fixing block, the connecting shaft motor performs carry starting rotation to form an angle step, and the connecting shaft motor stops carry motion after the bearing is driven to press the test tube for positioning;
s3: the test tube rotating mechanism comprises a speed reducing motor which drives a driving wheel to rotate, the test tube is driven to rotate under the action of rotating friction force, and in the test tube rotating process, a manipulator grabs a test tube cover of the uniformly-mixed test tube to complete the cover pulling operation;
s4: the operation of pulling out the lid is accomplished, and the subassembly of manipulator absorbs the detection liquid in the test tube, and gear motor drives the drive wheel and rotates, and the drive wheel rotates and produces and drive test tube pivoted frictional force, at the rotatory in-process of test tube, snatchs the test tube lid and is lain in on the test tube, and rethread manipulator snatchs the test tube, puts back the test tube on the test tube rack with the test tube
The invention discloses a test tube sealing device, which comprises a cover-removing bottom plate, wherein the cover-removing bottom plate is supported and positioned through a cover-removing bottom plate mounting column, a rotary cover-pulling part is arranged on the cover-removing bottom plate, the cover-removing bottom plate supports and positions the rotary cover-pulling part, the rotary cover-pulling part comprises a connecting shaft motor, the connecting shaft motor is started to generate a rotation step angle to drive a bearing to compress a test tube, a speed reduction motor is arranged to act on a driving wheel, and the driving wheel drives the test tube to rotate under the action of rotation friction; the rotary cap pulling mechanism comprises a mechanical arm, and the mechanical arm picks or places a test tube cap of a test tube in the rotary process.
Furthermore, the connecting shaft motor adopts a through screw shaft motor, and the speed reducing motor controls the rotating speed of the test tube and converts the sliding friction of the connection or the falling of the test tube cover into rolling friction; the bearing adopts rubber coating bearing crimping location test tube position, the drive wheel adopts rubber coating wheel.
Further, rotatory pull out and cover spare part includes test tube motor fixed plate, takes shoulder guiding axle, test tube motor connecting plate, compression spring, pinch roller mounting panel, spring washer, drive wheel, bearing, driven shaft, holds tightly a mounting panel, test-tube rack backup pad and holds tightly advance and retreat separation blade, and the connecting axle motor promotes test tube motor fixed plate, takes shoulder guiding axle, test tube motor connecting plate, compression spring, pinch roller mounting panel, spring washer, drive wheel, bearing, driven shaft, holds tightly a mounting panel, test-tube rack backup pad and holds tightly advance and retreat separation blade carry motion and fasten the test tube location.
Furthermore, a test tube motor fixing plate is arranged on the uncapping bottom plate, and a connecting shaft motor is fixed through the test tube motor fixing plate; the uncapping bottom plate is provided with a first groove-shaped optocoupler, a second groove-shaped optocoupler and a diffuse reflection optocoupler, the first groove-shaped optocoupler is reset photoelectric, the second groove-shaped optocoupler and the diffuse reflection optocoupler are used for detecting whether a test tube has photoelectric detection, the clasping advance and retreat separation blade resets and triggers the first groove-shaped optocoupler, and the clasping advance and retreat separation blade stops retreating to reach the original point position of the rotary cover pulling mechanism; the equipment power-on self-checking connecting shaft motor drives the clasping advance and retreat separation blade to reciprocate twice, the second groove type optocoupler and the diffuse reflection optocoupler are detected twice without trigger signals, no test tube is arranged in the feedback rotary cover pulling mechanism, and the connecting shaft motor stops after moving and resetting to the original point position to perform the next action.
Further, one side of test tube motor fixed plate sets up shouldered guiding axle, test tube motor connecting plate and compression spring connecting strap shouldered guiding axle with hold a mounting panel tightly, convert the effort of connecting axle motor into the spring force and compress tightly the test tube.
Furthermore, a pinch roller mounting plate is arranged on one side of the compression spring and is a connecting piece of adjacent rotary cover-pulling parts; one side of pinch roller mounting panel sets up spring washer, and spring washer's below is the bearing, and the bearing compresses tightly the test tube and rotates in step with the test tube, and the dry friction that produces when the restriction test tube rotates.
Furthermore, a driven shaft is arranged below the bearing to fix the bearing, and a speed reduction motor, a coupler, the bearing and a bearing sleeve for fixing the bearing are arranged on one side of the bearing; the gear motor is fixedly installed through the motor installation plate, the wheels are driven to rotate, and the force of the gear motor is transmitted through the coupler.
Further, the test tube includes long test tube and short test tube, fixes a position long test tube and short test tube and direction through the test tube fixed block, the below of test tube sets up the test tube tray and prevents the test tube whereabouts, and one side of test tube tray sets up the test tube clamping block, and fixed rotation pulls out the action wheel of covering spare part, and one side of the fixed clamping block of test tube is provided with the driven shaft and holds a mounting panel tightly, first cell type opto-coupler and second cell type opto-coupler are installed on holding a mounting panel tightly.
Further, including the test-tube rack backup pad connection in the rotatory mechanism of covering of pulling out rotatory cover spare part of pulling out sets up and holds the reset position that advance and retreat separation blade induced the second cell type opto-coupler for rotatory mechanism of pulling out the cover, responds to first cell type opto-coupler feedback and detects test tube position.
Furthermore, the connecting shaft motor pushes the rotary cover-pulling part through the linear guide rail to limit the running track of the connecting shaft motor; a cylindrical pin is arranged to position the connecting shaft motor and provide a motor lateral force; and an oilless bushing is arranged to form the operation guide of the connecting shaft motor.
Further, rotatory mechanism of pulling out the lid starts, and the reciprocal twice motion of connecting axle motor holds tightly and advances to move back the separation blade and trigger first cell type opto-coupler and diffuse reflection opto-coupler twice, detects in the test tube fixed block and whether the lower part space has the test tube.
The invention has the following technical effects:
the invention discloses a rotary cap pulling mechanism which effectively optimizes an automatic cap removing process, changes the sliding friction generated by cap removing into rolling friction and reduces the friction force between a test tube body and a cap body.
The method comprises the following specific steps:
1. the invention has simple structure, realizes the rotation of the rotated object through friction force and greatly saves the structure;
2. the fixing mode is simple and convenient, the cover body is clamped in a non-fastening mode, sliding friction is changed into rolling friction, and friction force between the tube body of the test tube and the cover body is reduced, so that different test tubes can be well and effectively disassembled.
3. The invention adopts a double-driven bearing structure and has the functions of automatic righting and centering.
Drawings
FIG. 1 is a side sectional view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an isometric view of the present invention;
the labels in the figure are: 1-uncapping bottom plate, 2-uncapping bottom plate mounting column, 3-connecting shaft motor, 4-test tube motor fixing plate, 5-shouldered guide shaft, 6-test tube motor connecting plate, 7-compression spring, 8-pinch roller mounting plate, 9-spring washer, 10-speed reduction motor, 11-coupler, 12-driving wheel, 13-bearing, 14-bearing, 15-bearing sleeve, 16-gasket, 17-test tube support block, 18-test tube fixing clamp block, 19-driven shaft, 20-holding block mounting plate, 21-holding optocoupler mounting plate, 22-test tube support plate, 23-holding coupler back and forth block, 24-linear guide rail, 25-cylindrical pin, 26-oilless bush, 27-diffuse reflection optocoupler, 28-test tube fixing block, 29-motor mounting plate, 30-first slot optocoupler, 31-second slot optocoupler, 32-long test tube, 33-short test tube.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
In the embodiment, the adopted data is a preferred scheme, but is not used for limiting the invention;
example 1
As shown in fig. 1-3, the present embodiment provides a test tube holder, which includes a uncapping bottom plate, the uncapping bottom plate is supported and positioned by an uncapping bottom plate mounting column, a rotary cap-pulling component is disposed on the uncapping bottom plate, the uncapping bottom plate supports and positions the rotary cap-pulling component, the rotary cap-pulling component includes a connecting shaft motor, the connecting shaft motor is started to generate a rotation step angle to drive a bearing to compress a test tube, a speed reduction motor is disposed to act on a driving wheel, and the driving wheel drives the test tube to rotate under the action of rotational friction; the rotary cap pulling mechanism comprises a mechanical arm, and the mechanical arm picks or places the test tube cap of the test tube in the rotary process.
In this embodiment, rotatory pull out and cover spare part includes test tube motor fixed plate, takes shoulder guiding axle, test tube motor connecting plate, compression spring, pinch roller mounting panel, spring washer, drive wheel, bearing, driven shaft, holds a mounting panel, test-tube rack backup pad and holds advance and retreat separation blade tightly, and the connecting axle motor promotes test tube motor fixed plate, takes shoulder guiding axle, test tube motor connecting plate, compression spring, pinch roller mounting panel, spring washer, drive wheel, bearing, driven shaft, holds a mounting panel, test-tube rack backup pad and holds advance and retreat separation blade carry motion tightly with test tube location fastening.
In this embodiment, one side of test tube motor fixed plate sets up shoulder guiding axle, test tube motor connecting plate and compression spring connecting band shoulder guiding axle with hold a mounting panel tightly, with the effort of connecting axle motor, be about to the effort that the motor directly compressed tightly and convert spring force into and compress tightly the test tube.
In this embodiment, a pinch roller mounting plate is arranged on one side of the compression spring, and the pinch roller mounting plate is a connecting piece of adjacent rotary cover-pulling parts; one side of pinch roller mounting panel sets up spring washer, preferably, spring washer adopts standard type spring washer, and spring washer's below is the bearing, and the bearing compresses tightly the test tube and rotates with the test tube synchronization, and the dry friction that produces when the restriction test tube rotates.
In the embodiment, a driven shaft is arranged below the bearing to fix the bearing, and a speed reduction motor, a coupler, the bearing and a bearing sleeve for fixing the bearing are arranged on one side of the bearing; the lower end of the coupler sleeve is sleeved in the bearing, the speed reduction motor is fixedly installed through the motor installation plate, the wheels are driven to rotate, and the force of the speed reduction motor is transmitted through the coupler.
In this embodiment, the test tube includes long test tube and short test tube, and in this embodiment, preferably, long test tube and short test tube need not the used jointly, and it can all use in this mechanism to show for explaining long test tube and short test tube in the picture, through test tube fixed block with test tube location and direction, the below of test tube sets up the test tube tray and prevents the test tube whereabouts, and one side of test tube tray sets up the fixed clamp splice of test tube, fixed rotatory action wheel of pulling out the lid spare part, and one side of the fixed clamp splice of test tube is provided with the driven shaft and holds a mounting panel tightly, first cell type opto-coupler and second cell type opto-coupler are installed on holding a mounting panel tightly.
In this embodiment, further, the connecting shaft motor pushes the rotary cover-pulling component through the linear guide rail, so as to limit the running track of the connecting shaft motor; a cylindrical pin is arranged to position the connecting shaft motor, preferably, a cylindrical pin with the diameter of 4 multiplied by 12 is adopted, so that the lateral force and the positioning precision of the motor are improved; and an oilless bushing is arranged to form the operation guide of the connecting shaft motor.
Example 2
The embodiment provides a rotary cap pulling mechanism which comprises a cap pulling bottom plate, wherein the cap pulling bottom plate is supported and positioned through a cap pulling bottom plate mounting column, a rotary cap pulling part is arranged on the cap pulling bottom plate, the cap pulling bottom plate supports and positions the rotary cap pulling part, the rotary cap pulling part comprises a connecting shaft motor, the connecting shaft motor is started to generate a rotation step angle to drive a bearing to press a test tube, a speed reducing motor is arranged to act on a driving wheel, and the driving wheel drives the test tube to rotate under the action of rotation friction force; the rotary cap pulling mechanism comprises a mechanical arm, and the mechanical arm picks or places the test tube cap of the test tube in the rotary process.
In the embodiment, a test tube motor fixing plate is arranged on the uncapping bottom plate, and a connecting shaft motor is fixed through the test tube motor fixing plate; the uncapping bottom plate is provided with a first groove-shaped optocoupler, a second groove-shaped optocoupler and a diffuse reflection optocoupler, the first groove-shaped optocoupler is reset photoelectric, the second groove-shaped optocoupler and the diffuse reflection optocoupler are used for detecting whether a test tube has photoelectric detection, the clasping advance and retreat separation blade resets and triggers the first groove-shaped optocoupler, and the clasping advance and retreat separation blade stops retreating to reach the original point position of the rotary cover pulling mechanism; the equipment power-on self-checking connecting shaft motor drives the clasping advance and retreat separation blade to reciprocate twice, the second groove type optocoupler and the diffuse reflection optocoupler are detected twice without trigger signals, no test tube is arranged in the feedback rotary cover pulling mechanism, and the connecting shaft motor stops after moving and resetting to the original point position to perform the next action. Furthermore, the original position is the position where the advancing and retreating blocking piece is tightly held to trigger the first groove-shaped optocoupler, and the next action is that the mechanical arm grabs the test tube and puts the test tube into the rotary cover pulling mechanism.
In this embodiment, when the mechanism starts, the connecting shaft motor moves back and forth twice, and whether the test tube exists in the test tube fixing block and in the lower space is detected. When the first grooved optocoupler and the diffuse reflection optocoupler are triggered by the clamping of the advancing and retreating blocking piece for two times and are not triggered, the device judges that no test tube exists at the position, and can perform the next action; otherwise, the equipment gives an alarm to prompt and the detection is stopped.
Further, after the mechanism judges that no test tube exists, the connecting shaft motor moves backwards, and the holding advance and retreat blocking piece triggers the second groove type optocoupler to reset successfully. Then the grasping mixing assembly clamp in the mechanical arm places the test tube in the hole of the test tube fixing block, and after the connecting shaft motor starts to rotate the pressing test tube with a certain step angle to drive the bearing, the connecting shaft motor stops. Further, the gear motor drives the driving wheel to rotate, and the generated rolling friction force drives the test tube assembly to rotate; snatch mixing subassembly clip in test tube subassembly rotation process and pull out the plug in the test tube subassembly. After pulling out the lid and accomplishing, after the sample in the test tube glass pipe was absorb to the application of sample arm subassembly in the arm, gear motor drove the drive wheel and rotates, and the drive wheel drives glass test tube in the test tube subassembly in step and rotates, snatchs the lid that mixing subassembly clip will originally extract at the rotatory in-process of glass test tube and covers back the glass test tube. After the cover is finished, the clamp puts the test tube assembly back into the test tube rack at the original position.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. The use method of the rotary cap pulling mechanism is characterized by comprising a test tube positioning mechanism and a test tube rotating mechanism, wherein the test tube positioning mechanism and the test tube rotating mechanism are matched with a mechanical arm to complete cap pulling or capping operation of a test tube cap, and the method comprises the following steps:
s1: the test tube positioning mechanism comprises a connecting shaft motor (3), a holding advance and retreat blocking piece (23), a first grooved optocoupler (30), a second grooved optocoupler (31) and a diffuse reflection optocoupler (27), the rotary cover pulling mechanism is started, the connecting shaft motor (23) reciprocates, whether a test tube is arranged in a test tube fixing block (28) for placing the test tube or not and in the lower space is detected, the first grooved optocoupler (30) and the diffuse reflection optocoupler (27) are triggered through the holding advance and retreat blocking piece (23), no information feedback is detected by the first grooved optocoupler (30) and the diffuse reflection optocoupler (27), the test tube is judged to be absent in the test tube fixing block (28), and the next step of action is carried out; the first groove-shaped optical coupler (30) and the diffuse reflection optical coupler (27) feed back detection information, a test tube is judged to be arranged at the test tube fixing block (28), the test tube positioning mechanism gives an alarm to prompt, and the detection process is stopped;
s2: the test tube positioning mechanism judges that no test tube exists at the test tube fixing block (28), the connecting shaft motor (3) moves in a resetting mode, the holding advance and retreat blocking piece (23) triggers the second groove-shaped optocoupler (31) to successfully reset, the manipulator grabs the test tube on the test tube rack and performs a mixing operation, the test tube after the mixing operation is placed in a hole of the test tube fixing block (28), the connecting shaft motor (3) is started to rotate in a carry mode to form an angle step pitch, and after the bearing (13) is driven to press the test tube for positioning, the connecting shaft motor (3) stops the carry motion;
s3: the test tube rotating mechanism comprises a speed reducing motor (10) which drives a driving wheel (12) to rotate, the test tube is driven to rotate under the action of rotating friction force, and in the test tube rotating process, a manipulator grabs a test tube cover of the uniformly mixed test tube to finish the cover pulling operation;
s4: the operation of pulling out the lid is accomplished, and the subassembly of manipulator absorbs the detection liquid in the test tube, and gear motor (10) drive wheel (12) rotate, and drive wheel (12) rotate and produce and drive test tube pivoted frictional force, at the rotatory in-process of test tube, snatch the test tube lid and lie in the test tube again, and rethread manipulator snatchs the test tube, puts back the test tube on the test tube rack.
2. A rotary cap pulling mechanism comprises a cap pulling bottom plate (1), wherein the cap pulling bottom plate (1) is supported and positioned through a cap pulling bottom plate mounting column (2), a rotary cap pulling part is arranged on the cap pulling bottom plate (1), and the cap pulling bottom plate (1) is supported and positioned and is characterized in that the rotary cap pulling part comprises a connecting shaft motor (3), the connecting shaft motor (3) is started to generate a rotation step angle to drive a bearing (13) to press a test tube, a speed reducing motor (10) is arranged to act on a driving wheel (12), and the driving wheel (12) drives the test tube to rotate under the action of rotation friction force; the rotary cap pulling mechanism comprises a mechanical arm, and the mechanical arm picks or places a test tube cap of a test tube in the rotary process.
3. The rotary cap pulling mechanism according to claim 1, wherein the rotary cap pulling parts comprise a test tube motor fixing plate (4), a shouldered guide shaft (5), a test tube motor connecting plate (6), a compression spring (7), a pinch roller mounting plate (8), a spring washer (9), a driving wheel (12), a bearing (13), a driven shaft (19), a holding block mounting plate (20), a test tube rack supporting plate (22) and a holding advance and retreat blocking piece (23), and the connecting shaft motor (3) pushes the test tube motor fixing plate (4), the shouldered guide shaft (5), the test tube motor connecting plate (6), the compression spring (7), the pinch roller mounting plate (8), the spring washer (9), the driving wheel (12), the bearing (13), the driven shaft (19), the holding block mounting plate (20), the test tube rack supporting plate (22) and the holding advance and retreat blocking piece (23) to position and fasten test tubes.
4. The rotary cap pulling mechanism according to claim 3, wherein the cap removing base plate (1) is provided with a test tube motor fixing plate (4), and the connecting shaft motor (3) is fixed through the test tube motor fixing plate (4); a first groove-shaped optical coupler (30), a second groove-shaped optical coupler (31) and a diffuse reflection optical coupler (27) are arranged on the uncapping bottom plate (1), the first groove-shaped optical coupler (30) is reset photoelectric, the second groove-shaped optical coupler (31) and the diffuse reflection optical coupler (27) are used for detecting whether the test tube has photoelectric detection or not, the first groove-shaped optical coupler (30) is triggered by resetting of the holding forward and backward movement blocking piece (23), and the holding forward and backward movement blocking piece (23) stops retreating to reach the original point position of the rotary cover pulling mechanism; the equipment power-on self-checking connecting shaft motor (3) drives the clasping advance and retreat blocking piece (23) to reciprocate twice, no trigger signal is detected for twice by the second groove-shaped optocoupler (31) and the diffuse reflection optocoupler (27), no test tube is arranged in the feedback rotary cover pulling mechanism, and the connecting shaft motor (3) stops after moving to an original point position to perform the next action.
5. The rotary cap pulling mechanism according to claim 3 or 4, wherein one side of the test tube motor fixing plate (4) is provided with a shoulder guide shaft (5), a test tube motor connecting plate (6) and a compression spring (7), the test tube motor connecting plate (6) and the compression spring (7) are connected with the shoulder guide shaft (5) and a holding block mounting plate (20), and the acting force of the connecting shaft motor (3) is converted into spring force to press the test tube; a pinch roller mounting plate (8) is arranged on one side of the compression spring (7), and the pinch roller mounting plate (8) is a connecting piece of adjacent rotary cover-pulling parts; one side of pinch roller mounting panel (8) sets up spring washer (9), and the below of spring washer (9) is bearing (13), and bearing (13) compress tightly the test tube and rotate in step with the test tube, the dry friction that produces when the restriction test tube rotates.
6. The rotary cap pulling mechanism according to claim 5, characterized in that a driven shaft (19) is arranged below the bearing (13) to fix the bearing (13), and a speed reducing motor (10), a coupling (11), a bearing (14) and a bearing sleeve for fixing the bearing (14) are arranged on one side of the bearing (13); the speed reducing motor (10) is fixedly installed through the motor installation plate (29), the wheels are driven to rotate, and the force of the speed reducing motor (10) is transmitted through the coupler (11).
7. The rotary cap pulling mechanism according to claim 6, wherein the test tube comprises a long test tube (32) and a short test tube (33), the long test tube (32) and the short test tube (33) are positioned and guided by a test tube fixing block (28), a test tube supporting block (17) is arranged below the test tube to prevent the test tube from falling, a test tube fixing clamping block (18) is arranged on one side of the test tube supporting block (17), a driving wheel of a part is fixedly and rotatably pulled out, a driven shaft (19) and a holding block mounting plate (20) are arranged on one side of the test tube fixing clamping block (18), and a first groove-shaped optical coupler (30) and a second groove-shaped optical coupler (31) are arranged on the holding block mounting plate (20).
8. The rotary cap pulling mechanism according to claim 7, characterized in that a test tube rack support plate (22) is included in the rotary cap pulling mechanism to connect the rotary cap pulling parts, a holding advance and retreat blocking piece (23) is arranged to sense that the second groove-shaped optical coupler (31) is a reset position of the rotary cap pulling mechanism, and the first groove-shaped optical coupler (30) is used for sensing the position of a test tube in a feedback manner.
9. The rotary cap pulling mechanism according to claim 8, wherein the connecting shaft motor (3) pushes the rotary cap pulling component through the linear guide rail (24) to limit the running track of the connecting shaft motor (3); a cylindrical pin (25) is arranged to position the connecting shaft motor (3) to provide a motor lateral force; an oilless bush (26) is arranged to form the running guide of the connecting shaft motor (3).
10. The cover rotating and pulling mechanism according to claim 9, wherein the cover rotating and pulling mechanism is started, the connecting shaft motor (3) reciprocates twice, the advancing and retreating blocking piece (23) is tightly held to trigger the first grooved optocoupler (30) and the diffuse reflection optocoupler (27) twice, and the test tube is detected in the middle and lower space of the test tube fixing block (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211007997.4A CN115231490A (en) | 2022-08-22 | 2022-08-22 | Rotary cap pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211007997.4A CN115231490A (en) | 2022-08-22 | 2022-08-22 | Rotary cap pulling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115231490A true CN115231490A (en) | 2022-10-25 |
Family
ID=83682204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211007997.4A Pending CN115231490A (en) | 2022-08-22 | 2022-08-22 | Rotary cap pulling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115231490A (en) |
-
2022
- 2022-08-22 CN CN202211007997.4A patent/CN115231490A/en active Pending
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