CN111337329B - Automatic salt adding device for pretreatment of salt powder tube sample - Google Patents
Automatic salt adding device for pretreatment of salt powder tube sample Download PDFInfo
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- CN111337329B CN111337329B CN202010322082.7A CN202010322082A CN111337329B CN 111337329 B CN111337329 B CN 111337329B CN 202010322082 A CN202010322082 A CN 202010322082A CN 111337329 B CN111337329 B CN 111337329B
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- 150000003839 salts Chemical class 0.000 title claims abstract description 203
- 239000000843 powder Substances 0.000 title claims abstract description 160
- 230000007246 mechanism Effects 0.000 claims abstract description 86
- 238000003860 storage Methods 0.000 claims abstract description 44
- 238000004064 recycling Methods 0.000 claims abstract description 25
- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000000523 sample Substances 0.000 description 24
- 230000001360 synchronised effect Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an automatic salt adding device for salt powder tube sample pretreatment, which comprises a storage mechanism, a material blocking mechanism, a rotating mechanism, an introducing mechanism, a central controller, a rack and a salt powder tube covered by a sealing cover, wherein the introducing mechanism comprises a recycling barrel and a sample tube group; after the salt powder pipe enters the rotating mechanism, the material blocking mechanism can be used for blocking the next salt powder pipe to enter the rotating mechanism, so that the collision of the upper salt powder pipe and the lower salt powder pipe is avoided, the rotating mechanism can realize the automatic uncovering of the salt powder pipe, the salt powder of the salt powder pipe is led out and added into the sample pipe, and the poured salt powder pipe and the sealing cover fall into the recycling bin. The invention has compact integral structure, integrates feeding, uncovering, importing and recycling, has high automation degree, improves the salt adding efficiency, and greatly promotes the progress of the salt adding field.
Description
Technical Field
The invention relates to the technical field of experimental instruments, in particular to an automatic salt adding device for pretreatment of salt powder tube samples.
Background
In the pretreatment process of laboratory samples, the operation of adding salt to the sample tube is needed frequently, the traditional salt adding mode is that an operator firstly takes out salt powder from a salt barrel through a sampling tool, then the salt powder is put into the sample tube.
Automatic salt adding equipment for adding salt to a sample tube instead of manpower is available in the market, salt powder is added into an opening of a salt barrel in advance in use through vibration or spiral salt conveying, and the automatic salt powder adding can be realized through vibration or rotation at an outlet, so that the problems of easy error and low efficiency of manual salt powder adding are solved by the automatic salt adding equipment, but the following problems occur:
As is known, salt powder has hygroscopicity, when salt needs to be added into a salt barrel to open an outlet of salt adding equipment, air can enter the salt barrel through the outlet, so that the salt powder in the salt barrel absorbs moisture in the air and then is agglomerated, and if the agglomeration is serious, the outlet of the salt adding device is blocked, thereby leading to higher failure rate of the salt adding equipment and lower salt adding precision; in addition, the salt barrel, each guide channel in the salt barrel and the outlet are easy to overflow salt powder due to pressure, so that other parts inside the equipment are polluted and corroded, and therefore, the salt adding equipment also needs to ensure higher tightness and has higher requirements on production standards.
Therefore, the inventor abandons the salt adding mode of exposing salt powder to air, and adopts a salt powder tube which is sealed and packed with salt powder to realize automatic salt adding, so the proposal is generated.
Disclosure of Invention
The invention aims to provide an automatic salt adding device for pretreatment of salt powder pipe samples, which is used for isolating contact between salt powder and air, and can realize automatic operations of feeding, uncovering, introducing and recycling by only loading salt powder pipes when in use, can be applied to mass salt adding, improves salt adding efficiency and has a compact whole structure.
To achieve the above object, the solution of the present invention is: an automatic salt adding device for salt powder tube sample pretreatment comprises a storage mechanism, a material blocking mechanism, a rotating mechanism, an introducing mechanism, a central controller, a rack and a salt powder tube;
The salt powder tube comprises a sealing cover and a salt powder tube body, a tube orifice is formed in the top of the salt powder tube body, salt powder is loaded on the salt powder tube body, and the tube orifice is covered by the sealing cover;
The storage mechanism comprises a rotary table, storage barrels and a first rotating motor, a rotary shaft is arranged in the center of the rotary table, the rotary shaft is connected with the first rotating motor, a plurality of pipe holes are annularly and uniformly distributed on the periphery of the rotary table, one storage barrel is correspondingly arranged above each pipe hole, and the rotary table is arranged on the rack;
the material blocking mechanism comprises a guide seat, a material blocking block and a first telescopic motor, wherein the guide seat is provided with a vertical through hole and a transverse through hole communicated with the vertical through hole, the material blocking block penetrates into the vertical through hole from the transverse through hole, the material blocking block is externally connected with the first telescopic motor, the first telescopic motor is fixed below the guide seat, and the guide seat is arranged on the frame;
The rotating mechanism comprises a capacitance sensor, a second rotating motor, a rotating seat, a push knife, a second telescopic motor, a thimble, a connecting rod and a thimble seat, wherein the second rotating motor is connected with the rotating seat, the thimble seat and the rotating seat are fixed together, the capacitance sensor is fixed outside the rotating seat, the rotating seat is provided with a vertical channel, the top of the vertical channel corresponds to the lower part of the vertical through hole, the thimble is arranged at the bottom of the vertical channel, the upper part of the thimble is abutted against a salt powder pipe, the thimble is connected with the second telescopic motor through the connecting rod, the second telescopic motor is arranged in the thimble seat, the push knife is fixed on a frame at the front side of the top of the rotating seat and is perpendicular to the rotating direction of the second rotating motor, and the second rotating motor is arranged on the frame;
The guiding mechanism comprises a recycling bin, a swinging conical funnel, a first tension spring and a sample tube group, wherein the swinging conical funnel is parallel to one side of the rotating mechanism, the recycling bin is arranged right below the rotating mechanism, the top of the swinging conical funnel is rotationally connected to the frame, the first tension spring is positioned between the swinging conical funnel and the rotating mechanism, one end of the first tension spring is connected to the swinging conical funnel, the other end of the first tension spring is connected to the frame and pulls the swinging conical funnel to incline towards the rotating mechanism, the sample tube group is arranged right below the swinging conical funnel, and the inner wall of the swinging conical funnel is used for the rotating seat to rotate so as to drive a tube orifice of the salt powder tube to touch;
the capacitive sensor, the first rotating motor, the first telescopic motor, the second rotating motor and the second telescopic motor are connected with the central controller.
Preferably, the storage mechanism further comprises a first sensor, a cross beam is arranged at the top of the outer cover, the cross beam is used for fixing the first sensor, the first sensor is suspended in the middle of the encircling storage cylinder, and the first sensor is connected with the central controller.
Preferably, the storage mechanism further comprises an outer cover, the outer cover covers the storage cylinder, and a tube placing groove is formed in the top of the outer side of the outer cover.
Preferably, the stop mechanism further comprises a second tension spring, a transverse sliding groove is formed in the outer side of the guide seat, a protruding shaft is arranged on the side face of the stop block at a position corresponding to the sliding groove, the protruding shaft extends out of the sliding groove to be connected with one end of the second tension spring, the other end of the second tension spring is fixed to the guide seat, and the second telescopic motor adopts an electromagnet.
Preferably, the rotating mechanism further comprises a spring, the rotating seat extends to form a fixed block with a perforation, a push rod is arranged between the second telescopic motor and the connecting rod, the tail part of the push rod penetrates through the perforation to be connected with the connecting rod, the head part of the push rod is abutted to a motor shaft of the second telescopic motor, a flange is arranged on the push rod, the spring is sleeved outside the push rod, one end of the spring is abutted to the lower part of the flange, the other end of the spring is abutted to the upper part of the fixed block, and the second telescopic motor adopts an electromagnet.
Preferably, the rotating mechanism further comprises a color code sensor, and the color code sensor is installed on the frame on the right side of the top of the rotating seat and is connected with the central controller.
Preferably, the guiding mechanism further comprises a limit bolt, a vertical threaded hole for the limit bolt to be matched is formed in the frame above the swing conical funnel, a movable gap is reserved between the bottom of the limit bolt and the top of the swing conical funnel, and when the top of the swing conical funnel is inclined, the top of the swing conical funnel is in interference limit with the bottom of the limit bolt.
Preferably, the tail of the swinging conical funnel is provided with an inclined plate, and the inclined plate inclines towards the recycling bin.
Preferably, a guide plate is arranged at the upper edge of the recycling bin, and the guide plate is inclined towards the swinging conical funnel.
Preferably, a displacement mechanism is arranged at the bottom of the sample tube group and drives the sample tube group to translate.
The working process of the invention is as follows:
Firstly, placing salt powder pipes into rear storage cylinders, and driving a rotary table to rotate along with a first rotary motor, wherein each storage cylinder on the rotary table is filled with the salt powder pipes, so that storage is completed;
Then, the turntable is rotated again, the salt powder tube falls from the tube hole of the storage tube, at the moment, the material blocking block is positioned in the vertical through hole of the guide seat to prevent the salt powder tube from falling into the rotating mechanism, the first telescopic motor drives the material blocking block to move outwards along the transverse through hole, so that the material blocking block leaves the vertical through hole, the salt powder tube falls into the vertical channel of the rotating seat from the vertical through hole of the guide seat until the bottom of the salt powder tube is abutted to the upper part of the thimble, at the moment, the capacitance sensor senses that the salt powder tube enters the rotating seat, the second telescopic motor drives the connecting rod to descend to drive the thimble to extend downwards, the salt powder tube stretches deeper into the vertical channel, and then the material blocking block of the material blocking mechanism is reset and moves into the vertical through hole again to close the vertical through hole;
Then, the second rotating motor drives the rotating seat to rotate anticlockwise, as the push knife is fixed on the frame at the front side of the top of the rotating seat and is perpendicular to the rotating direction of the second rotating motor, the rotating seat rotates to drive the salt powder tube to pass through the push knife, the push knife pushes the sealing cover away from the salt powder tube body, the sealing cover falls down and is recovered into the recovery barrel, the rotating mechanism continues to rotate anticlockwise, the tube orifice of the salt powder tube starts to touch the inner wall of the inclined swinging cone funnel, the salt powder tube pushes the swinging cone funnel to rotate by taking the top as the rotating center, meanwhile, under the action of the tension spring, the inner wall of the swinging cone always clings to the tube orifice of the salt powder tube, sealing is gradually formed, salt powder is prevented from overflowing, along with the continuing increase of the rotating angle, a gap is exposed between the tube orifice of the salt powder tube and the inner wall of the swinging cone funnel when the tube orifice starts to face downwards, then, the salt powder is poured into a sample tube of the sample tube group downwards along the inner wall of the swinging conical funnel, the second telescopic motor drives the thimble to perform telescopic motion through the connecting rod, so that the thimble impacts the bottom of the salt powder tube, residual salt powder in the salt powder tube is poured out of the tube under the action of gravity and impact force, flows into the sample tube through the swinging conical funnel to finish the lead-out of the salt powder, then the capacitance sensor senses the change of capacitance value, so as to judge that the salt powder in the salt powder tube is completely led out, the second telescopic motor drives the thimble to shrink, the rotating mechanism continuously rotates anticlockwise, when the tube orifice turns to the recycling bin, the second telescopic motor drives the thimble again to impact the bottom of the salt powder tube, so that the salt powder tube falls into the recycling bin under the action of gravity and impact force, the lead-out of the salt powder tube is finished, finally, the second rotating motor drives the rotating seat to rotate clockwise, reset to the initial state and wait for the next salt powder tube to enter.
After the scheme is adopted, the salt powder pipe is isolated from air permeation by the salt powder pipe body through the sealing cover, so that salt powder is fundamentally ensured not to be agglomerated, the automatic salt powder adding device which can be matched with the salt powder pipe is specially designed to realize automatic salt powder adding, and the salt powder pipe is similar to a cartridge loading form; moreover, after the salt powder tube enters the rotating mechanism, the material blocking mechanism can be used for blocking the next salt powder tube to enter the rotating mechanism, so that collision of the upper salt powder tube and the lower salt powder tube is avoided, the rotating mechanism can automatically uncover the salt powder tube, salt powder of the salt powder tube is led out and added into the sample tube, in the process, the swinging conical funnel can be mutually matched with the salt powder tube all the time under the action of tension force of the tension spring, so that salt powder leakage is avoided, smooth leading-out of the salt powder is ensured, in addition, the effect of shaking off the salt powder is formed by utilizing the impact of the thimble when the salt powder is led in, and the salt powder is led in more completely and accurately; the salt powder pipe body and the sealing cover can be finally collected in the recycling bin for later recycling. In summary, the invention has compact integral structure, integrates feeding, uncovering, importing and recycling, has high automation degree, improves the salt adding efficiency, and greatly promotes the progress of the salt adding field.
Drawings
FIG. 1 is a schematic view of the structure of the exterior of an embodiment of the present invention.
FIG. 2 is a schematic diagram of the structural axial side of the interior of an embodiment of the present invention.
FIG. 3 is a schematic diagram of a structural axis within an embodiment of the present invention.
Fig. 4 is a schematic diagram of the structural axis inside an embodiment of the present invention.
Fig. 5 is a schematic side view of the interior of an embodiment of the present invention.
Fig. 6 is a schematic side view of the interior of an embodiment of the invention (color scale sensor omitted).
Fig. 7 is an enlarged schematic view at a in fig. 2.
Fig. 8 is a schematic structural view of a warehouse mechanism according to an embodiment of the invention.
FIG. 9 is a schematic diagram of a dam mechanism according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of a rotating mechanism according to an embodiment of the present invention.
FIG. 11 is a schematic view of an introduction mechanism according to an embodiment of the present invention.
FIG. 12 is a schematic view of a sample tube set and displacement mechanism according to an embodiment of the present invention.
Description of the reference numerals:
The storage mechanism 1, the turntable 11, the rotating shaft 111, the pipe hole 112, the storage cylinder 12, the housing 13, the pipe placing groove 131, the cross beam 132, the first synchronous belt conveying structure 14, the first rotating motor 15, the first sensor 16, the stock stop 2, the guide holder 21, the vertical through hole 211, the horizontal through hole 212, the chute 213, the stock stop 22, the protruding shaft 221, the first telescopic motor 23, the second tension spring 24, the rotating mechanism 3, the capacitance sensor 31, the second rotating motor 32, the second synchronous belt conveying structure 321, the rotating holder 33, the vertical channel 331, the fixed block 332, the push-type broach 34, the second telescopic motor 35, the spring 351, the push rod 352, the flange 353, the thimble 36, the connecting rod 37, the thimble seat 38, the color mark sensor 39, the introducing mechanism 4, the recycling barrel 41, the swinging cone 42, the funnel seat 421, the funnel body 422, the inclined plate 423, the guide plate 424, the pin 425, the L-shaped slot 426, the first tension spring 43, the sample pipe group 44, the sample pipe 441, the limit bolt 45, the movable gap 46, the stand 5, the salt powder pipe 6, the sealing cover 61, the salt powder pipe 62, and the third displacement mechanism 71.
Detailed Description
The invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The invention provides an automatic salt adding device for pretreatment of salt powder tube samples, which is used for customizing salt powder tube consumable materials according to the standard of pretreatment industry, as shown in fig. 1, a salt powder tube 6 comprises a sealing cover 61 and a salt powder tube body 62, a tube orifice is arranged at the top of the salt powder tube body 62, salt powder is loaded in the salt powder tube body 62, and the tube orifice is covered and sealed by the sealing cover 61; in addition to the above-described powder tube 6, the apparatus further comprises a warehouse mechanism 1, a dam mechanism 2, a rotating mechanism 3, an introducing mechanism 4, a central controller (not shown in the figure), and a frame 5.
The storage mechanism 1 comprises a rotary table 11, a storage barrel 12, an outer cover 13, a first synchronous belt conveying structure 14, a first rotating motor 15 and a first sensor 16, wherein a rotary shaft 111 is arranged at the center of the rotary table 11, the first synchronous belt conveying structure 14 is arranged between the rotary shaft 111 and the first rotating motor 15, the first rotating motor 15 is connected with the rotary shaft 111 through the first synchronous belt conveying structure 14 and drives the rotary shaft 111 to rotate, so that the rotary table 11 is driven to rotate, the rotary table 11 is in a circular ring shape, a plurality of pipe holes 112 are annularly and uniformly distributed on the periphery of the rotary table 11, the storage barrel 12 is correspondingly arranged above each pipe hole 112, the outer cover 13 is covered outside the storage barrel 12, a pipe placing groove 131 is formed in the top of the outer side of the outer cover 13, and the rotary table 11 is arranged on the rack 5. On this basis, the embodiment further provides a first sensor 16, a cross beam 132 is arranged on the top of the outer cover 13, and the cross beam 132 is used for fixing the first sensor 16, so that the first sensor 16 is suspended in the middle of the encircling storage barrel 12.
The salt powder pipe 6 is stored as follows: as shown in fig. 1, firstly, the salt powder tube 6 is stretched into the tube placing groove 131 of the outer cover 13, and since the outer cover 13 covers the exterior of the storage tube 12, the salt powder tube 6 is stretched into the storage tube 12 after being placed into the storage tube 12, the first sensor 16 is used for detecting whether the storage tube 12 corresponding to the tube placing groove 131 is full of the salt powder tube 6, when the storage tube 12 is full, the first rotating motor 15 drives the turntable 11 to automatically switch to the next storage tube 12 until each storage tube 12 on the turntable 11 is full of the salt powder tube 6, and storage is completed, and in order to expand the capacity, the storage mechanism 1 can be provided with at least two storage tubes 12, each storage tube 12 can be placed with at least two salt powder tubes 6, in this embodiment, the storage mechanism 1 has thirty storage tubes 12, and each storage tube 12 can store four salt powder tubes 6.
As shown in fig. 2, 7 and 9, the stop mechanism 2 includes a guide holder 21, a stop block 22, a first telescopic motor 23 and a second tension spring 24, the guide holder 21 is provided with a vertical through hole 211 and a transverse through hole 212 communicating with the vertical through hole 211, the stop block 22 is inserted into the vertical through hole 211 from the transverse through hole 212, the stop block 22 is externally connected with the first telescopic motor 23, the first telescopic motor 23 is fixed below the guide holder 21, and the guide holder 21 is arranged on the frame 5.
As a preferred embodiment, the second telescopic motor 35 adopts an electromagnet, the electromagnet is powered on to drive the motor shaft to stretch out, the electromagnet is powered off, the motor shaft is retracted, the motor shaft can reciprocate by repeatedly powering on and off, the embodiment particularly designs a reset structure of the baffle block 22 after power off, specifically, a transverse sliding groove 213 is formed in the outer side of the guide seat 21, a protruding shaft 221 is arranged on the side surface of the baffle block 22 at a position corresponding to the sliding groove 213, the protruding shaft 221 stretches out of the sliding groove 213 and is connected with one end of the second tension spring 24, the other end of the second tension spring 24 is fixed on the guide seat 21, when the electromagnet is powered on, the motor shaft pushes the baffle block 22 to withdraw from the vertical through hole 211, at the moment, the vertical through hole 211 is unblocked, the second tension spring 24 is in a tensioning state, and after the electromagnet is powered off, the motor shaft is retracted, the second tension spring 24 contracts and resets, and pulls the baffle block 22 to penetrate the vertical through hole 211 by pulling the protruding shaft 221. The reset structure reasonably utilizes the physical characteristics of the structure to replace the motor to drive the baffle block 22 to reset, and the structure is reliable, thereby being beneficial to saving electric energy.
As shown in fig. 4, 5, 6 and 10, the rotating mechanism 3 comprises a capacitance sensor 31, a second rotating motor 32, a rotating seat 33, a push knife 34, a second telescopic motor 35, a thimble 36, a connecting rod 37, a thimble seat 38, a color code sensor 39, a spring 351 and a push rod 352, a second synchronous belt conveying structure 321 is arranged between the rotating seat 33 and the second rotating motor 32, the second rotating motor 32 is connected through the second synchronous belt conveying structure 321 and drives the rotating seat 33 to rotate, the thimble seat 38 and the rotating seat 33 are fixed together, the capacitance sensor 31 is fixed outside the rotating seat 33, the vertical passageway 331 is offered to roating seat 33, the top of vertical passageway 331 corresponds the below of vertical through-hole 211, the bottom of vertical passageway 331 is put into to thimble 36, and the butt of salt powder pipe 6 is supplied on thimble 36 upper portion, and thimble 36 passes through connecting rod 37 and connects second flexible motor 35, and second flexible motor 35 is built-in thimble seat 38, push broach 34 is fixed in the frame 5 of roating seat 33 top front side to perpendicular to the direction of rotation of second rotating electrical machines 32, second rotating electrical machines 32 set up in frame 5, color mark sensor 39 is installed in the frame 5 on roating seat 33 top right side. The color code sensor 39, the first sensor 16, the capacitance sensor 31, the first rotary motor 15, the first telescopic motor 23, the second rotary motor 32 and the second telescopic motor 35 are connected with a central controller. After the storage operation of the salt powder tube 6 is completed, the turntable 11 is rotated, the salt powder tube 6 falls down from the tube hole 112 of the storage barrel 12, at this time, the baffle block 22 is positioned in the vertical through hole 211 of the guide seat 21 to prevent the salt powder tube 6 from falling into the rotating mechanism 3, the first telescopic motor 23 drives the baffle block 22 to move outwards along the transverse through hole 212, so that the baffle block 22 leaves the vertical through hole 211, the salt powder tube 6 falls into the vertical channel 331 of the rotating seat 33 from the vertical through hole 211 of the guide seat 21 until the bottom of the salt powder tube 6 is abutted against the upper part of the ejector pin 36, the capacitance sensor 31 senses that the salt powder tube 6 enters the rotating seat 33, the second telescopic motor 35 drives the connecting rod 37 to descend to drive the ejector pin 36 to extend downwards, The salt powder tube 6 goes deeper into the vertical channel 331 and descends in height, and then the material blocking block 22 of the material blocking mechanism 2 is reset and moved into the vertical through hole 211 again to close the vertical through hole 211; Before the capacitance sensor 31 senses whether the salt powder tube 6 enters the rotating seat 33, the color code sensor 39 at the top of the rotating seat 33 detects whether the salt powder tube 6 is reversely put, and by detecting the color at the top of the salt powder tube 6, if the salt powder tube 6 is blue, the salt powder tube 6 is judged to be correctly placed, otherwise, the salt powder tube 6 is incorrectly placed, the second rotating motor 32 drives the rotating seat 33 to rotate clockwise, the second telescopic motor 35 drives the ejector pin 36 to perform telescopic motion through the driving connecting rod 37, so that the ejector pin 36 ejects the salt powder tube 6, and the salt powder tube 6 with the sealing cover 61 is recovered into the recovery barrel 41. The color scale sensor 39 can determine whether the salt powder tube 6 is reversely placed before the cover is opened, the sealing cover 61 after the cover is correctly opened and the salt powder tube 6 in the reverse direction is automatically discharged, after the direction is correct, the second rotating motor 32 drives the rotating seat 33 to rotate anticlockwise, and the push knife 34 is fixed on the frame 5 at the front side of the top of the rotating seat 33 and is perpendicular to the rotating direction of the second rotating motor 32, so that the rotating seat 33 rotates to drive the salt powder tube 6 to pass through the push knife 34, and the push knife 34 pushes the sealing cover 61 away from the salt powder tube body 62.
As a preferred embodiment, the second telescopic motor 35 adopts an electromagnet, the electromagnet is electrified to drive the motor shaft to stretch out, the electromagnet is powered off, the motor shaft is retracted, the motor shaft can reciprocate to telescopic motion through repeated power-off, the embodiment particularly designs a reset structure of the thimble 36 after power-off, specifically, the rotating seat 33 extends to form a fixed block 332 with a through hole, a push rod 352 is arranged between the second telescopic motor 35 and the connecting rod 37, the tail part of the push rod 352 passes through the through hole to be connected with the connecting rod 37, the head part of the push rod 352 is abutted to the motor shaft of the second telescopic motor 35, a flange 353 is arranged on the push rod 352, the spring 351 is sleeved outside the push rod 352, one end of the spring 351 is abutted to the lower part of the flange 353, the other end of the spring 351 is abutted to the upper part of the fixed block 332, when the electromagnet is electrified, the motor shaft pushes the push rod 352 to descend, the connecting rod 37 and the thimble 36 are driven to descend, the spring 351 is in a contracted state, and after the electromagnet is powered off, the motor shaft is retracted, the spring 351 stretches and resets, the flange 353 and even the push rod 352 is integrally ascended, so that the push rod 37 and the thimble 36 are driven to move upwards. The reset structure reasonably utilizes the physical characteristics of the structure to replace the motor to drive the thimble 36 to reset, and the structure is reliable, thereby being beneficial to saving electric energy.
The guiding mechanism 4 comprises a recycling bin 41, a swinging conical funnel 42, a first tension spring 43 and a sample tube set 44, wherein the swinging conical funnel 42 is parallel to one side of the rotating mechanism 3, the recycling bin 41 is arranged right below the rotating mechanism 3, the top of the swinging conical funnel 42 is rotatably connected to the frame 5, the first tension spring 43 is positioned between the swinging conical funnel 42 and the rotating mechanism 3, one end of the first tension spring 43 is connected to the swinging conical funnel 42, the other end of the first tension spring 43 is connected to the frame 5, the swinging conical funnel 42 is pulled to incline towards the rotating mechanism 3, the sample tube set 44 is arranged right below the swinging conical funnel 42, and the inner wall of the swinging conical funnel 42 is used for the rotating seat 33 to rotate so as to drive the tube orifice of the salt powder tube 6 to touch.
After the sealing cover 61 is pushed away by the push knife 34, the sealing cover 61 falls down and is recycled into the recycling bin 41, the rotating mechanism 3 continues to rotate anticlockwise, the pipe orifice of the salt powder pipe 6 starts to touch the inner wall of the inclined swinging conical funnel 42, along with the increase of the rotation angle, the salt powder pipe 6 pushes the swinging conical funnel 42 to rotate by taking the top as the rotation center, meanwhile, under the pull force of the first tension spring 43, the inner wall of the swinging conical funnel 42 is always attached to the pipe orifice of the salt powder pipe 6 to gradually form a seal, salt powder is prevented from overflowing, along with the continuous increase of the rotation angle, when the pipe orifice starts to downwards, a gap is exposed between the pipe orifice of the salt powder pipe 6 and the inner wall of the swinging conical funnel 42, then the salt powder is poured downwards into the sample pipe 441 of the sample pipe group 44 along the inner wall of the swinging conical funnel 42, the second telescopic motor 35 drives the thimble 36 to perform telescopic motion through the connecting rod 37, so that the ejector pin 36 impacts the bottom of the salt powder tube 6, residual salt powder in the salt powder tube 6 is poured out from the tube under the action of gravity and impact force and flows into the sample tube 441 through the swinging cone funnel 42 to finish the lead-out of the salt powder, then the capacitance value is sensed by the capacitance sensor 31 to change, so that the salt powder in the salt powder tube 6 is judged to be completely led out, the ejector pin 36 is driven by the second telescopic motor 35 to shrink, the rotating mechanism 3 continues to rotate anticlockwise, when the tube orifice turns to the recycling bin 41, the ejector pin 36 is driven again by the second telescopic motor 35 to impact the bottom of the salt powder tube 6, so that the salt powder tube 6 falls into the recycling bin 41 under the action of gravity and impact force to finish the lead-out of the salt powder tube 6, the tail part of the swinging cone funnel 42 is provided with a sloping plate 423, the sloping plate 423 faces the recycling bin 41, the upper edge of the recycling bin 41 is provided with a guide plate 424, the guide plate 424 faces the swinging cone funnel 42 in a sloping way, the salt powder tube 6 is conveniently guided into the recovery tank 41 along the inclined plate 423 and the guide plate 424. Finally, the second rotating motor 32 drives the rotating seat 33 to rotate clockwise, and the rotating seat is reset to an initial state and waits for the next salt powder tube 6 to enter.
As a further improvement, a displacement mechanism 7 is arranged at the bottom of the sample tube set 44, the displacement mechanism 7 is driven by a third motor 71, the displacement mechanism 7 can drive the sample tube set 44 filled with salt powder to translate and transport away, and the empty sample tube set 44 can be transported to the lower part of the swinging conical funnel 42.
The guiding mechanism 4 further comprises a limit bolt 45, a vertical threaded hole for the limit bolt 45 to be matched is formed in the frame 5 above the swing conical funnel 42, a movable gap 46 is reserved between the bottom of the limit bolt 45 and the top of the swing conical funnel 42, when the top of the swing conical funnel 42 is inclined, the movable gap 46 disappears, the top of the swing conical funnel 42 is in contact with the bottom of the limit bolt 45 to limit the funnel to be inclined further, and the size of the movable gap 46 can be controlled by controlling the limit bolt 45 in the same way in the opposite direction, so that the inclination of the funnel can be controlled.
As can be seen from the above working process of the present invention, after the salt powder comes out of the salt powder tube 6, the salt powder is only in contact with the swinging cone funnel 42, so it is important to keep the swinging cone funnel 42 clean, so in order to facilitate cleaning and maintenance of the swinging cone funnel 42, the embodiment further designs the swinging cone funnel 42 into a detachable structure, specifically, the swinging cone funnel 42 includes a funnel seat 421 and a funnel body 422, the top of the funnel seat 421 is rotatably connected to the frame 5, pins 425 are convexly arranged at two sides of the bottom of the funnel seat 421, L-shaped grooves 426 are formed at two sides of the funnel body 422, the L-shaped grooves 426 of the funnel body 422 are laterally pushed along the pins 425, and then the L-shaped grooves 426 are pulled down to hang the grooves of the L-shaped grooves 426 on the pins 425. During disassembly and assembly, the funnel body 422 is held by hand, the funnel body 422 is lifted upwards, and the L-shaped groove 426 is withdrawn out of the pin 425, so that the funnel body 422 and the funnel seat 421 are separated.
The above embodiments are only preferred embodiments of the present invention, and are not limited to the present invention, and all equivalent changes made according to the design key of the present invention fall within the protection scope of the present invention.
Claims (10)
1. Automatic salt adding device for pretreatment of salt powder tube samples, which is characterized in that: comprises a storage mechanism, a material blocking mechanism, a rotating mechanism, a guiding mechanism, a central controller, a frame and a salt powder pipe;
The salt powder tube comprises a sealing cover and a salt powder tube body, a tube orifice is formed in the top of the salt powder tube body, salt powder is loaded on the salt powder tube body, and the tube orifice is covered by the sealing cover;
The storage mechanism comprises a rotary table, storage barrels and a first rotating motor, a rotary shaft is arranged in the center of the rotary table, the rotary shaft is connected with the first rotating motor, a plurality of pipe holes are annularly and uniformly distributed on the periphery of the rotary table, one storage barrel is correspondingly arranged above each pipe hole, and the rotary table is arranged on the rack;
the material blocking mechanism comprises a guide seat, a material blocking block and a first telescopic motor, wherein the guide seat is provided with a vertical through hole and a transverse through hole communicated with the vertical through hole, the material blocking block penetrates into the vertical through hole from the transverse through hole, the material blocking block is externally connected with the first telescopic motor, the first telescopic motor is fixed below the guide seat, and the guide seat is arranged on the frame;
The rotating mechanism comprises a capacitance sensor, a second rotating motor, a rotating seat, a push knife, a second telescopic motor, a thimble, a connecting rod and a thimble seat, wherein the second rotating motor is connected with the rotating seat, the thimble seat and the rotating seat are fixed together, the capacitance sensor is fixed outside the rotating seat, the rotating seat is provided with a vertical channel, the top of the vertical channel corresponds to the lower part of the vertical through hole, the thimble is arranged at the bottom of the vertical channel, the upper part of the thimble is abutted against a salt powder pipe, the thimble is connected with the second telescopic motor through the connecting rod, the second telescopic motor is arranged in the thimble seat, the push knife is fixed on a frame at the front side of the top of the rotating seat and is perpendicular to the rotating direction of the second rotating motor, and the second rotating motor is arranged on the frame;
The guiding mechanism comprises a recycling bin, a swinging conical funnel, a first tension spring and a sample tube group, wherein the swinging conical funnel is parallel to one side of the rotating mechanism, the recycling bin is arranged right below the rotating mechanism, the top of the swinging conical funnel is rotationally connected to the frame, the first tension spring is positioned between the swinging conical funnel and the rotating mechanism, one end of the first tension spring is connected to the swinging conical funnel, the other end of the first tension spring is connected to the frame and pulls the swinging conical funnel to incline towards the rotating mechanism, the sample tube group is arranged right below the swinging conical funnel, and the inner wall of the swinging conical funnel is used for the rotating seat to rotate so as to drive a tube orifice of the salt powder tube to touch;
the capacitive sensor, the first rotating motor, the first telescopic motor, the second rotating motor and the second telescopic motor are connected with the central controller.
2. The automatic salt adding device for pretreatment of salt powder tube samples as claimed in claim 1, wherein the storage mechanism further comprises an outer cover, the outer cover covers the outside of the storage cylinder, and a tube releasing groove is formed in the top of the outer side of the outer cover.
3. The automatic salt adding device for pretreatment of salt powder tube samples as claimed in claim 2, wherein the storage mechanism further comprises a first sensor, a cross beam is arranged at the top of the outer cover, the cross beam is used for fixing the first sensor, the first sensor is suspended in the middle of a storage cylinder which is surrounded by the cross beam, and the first sensor is connected with the central controller.
4. The automatic salt adding device for pretreatment of salt powder tube samples according to claim 1, wherein the material blocking mechanism further comprises a second tension spring, a transverse sliding groove is formed in the outer side of the guide seat, a protruding shaft is arranged on the side face of the material blocking block at the position corresponding to the sliding groove, the protruding shaft extends out of the sliding groove to be connected with one end of the second tension spring, the other end of the second tension spring is fixed on the guide seat, and the second telescopic motor adopts an electromagnet.
5. The automatic salt adding device for pretreatment of salt powder tube samples according to claim 1, wherein the rotating mechanism further comprises a spring, the rotating seat extends to form a fixed block with a perforation, a push rod is arranged between the second telescopic motor and the connecting rod, the tail part of the push rod passes through the perforation to be connected with the connecting rod, the head part of the push rod is abutted against a motor shaft of the second telescopic motor, a flange is arranged on the push rod, the spring is sleeved outside the push rod, one end of the spring is abutted under the flange, the other end of the spring is abutted against the upper part of the fixed block, and the second telescopic motor adopts an electromagnet.
6. The automatic salt adding device for pretreatment of salt powder tube samples according to claim 1, wherein the rotating mechanism further comprises a color code sensor, and the color code sensor is arranged on a frame on the right side of the top of the rotating seat and is connected with a central controller.
7. The automatic salt adding device for pretreatment of salt powder tube samples according to claim 1, wherein the introducing mechanism further comprises a limit bolt, a vertical threaded hole for the limit bolt to be matched is formed in a frame above the swinging cone-shaped funnel, a movable gap is reserved between the bottom of the limit bolt and the top of the swinging cone-shaped funnel, and when the top of the swinging cone-shaped funnel is inclined, the top of the swinging cone-shaped funnel is in abutting limit with the bottom of the limit bolt.
8. The automatic salt adding device for pretreatment of salt powder tube samples according to claim 1, wherein the tail part of the swinging conical hopper is provided with an inclined plate, and the inclined plate is inclined towards the recycling bin.
9. The automatic salt adding device for pretreatment of salt powder tube samples as claimed in claim 1, wherein a guide plate is arranged at the upper edge of the recycling bin and is inclined towards the swinging conical funnel.
10. The automatic salt adding device for pretreatment of salt powder tube samples as claimed in claim 1, wherein a displacement mechanism is arranged at the bottom of the sample tube group and drives the sample tube group to translate.
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| CN105752470B (en) * | 2016-04-26 | 2018-08-07 | 湖南三德科技股份有限公司 | A kind of intelligence sample collection device |
| CN107328950B (en) * | 2017-08-22 | 2023-06-27 | 重庆博奥新景医学科技有限公司 | Automatic sample injection system for lifting and cleaning sample tube in cell analysis |
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