CN115806096B - Automatic discharging equipment and method for nucleic acid detection swab - Google Patents
Automatic discharging equipment and method for nucleic acid detection swab Download PDFInfo
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- CN115806096B CN115806096B CN202310062133.0A CN202310062133A CN115806096B CN 115806096 B CN115806096 B CN 115806096B CN 202310062133 A CN202310062133 A CN 202310062133A CN 115806096 B CN115806096 B CN 115806096B
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Abstract
The invention belongs to the technical field of computer technology and automation equipment, and particularly relates to automatic discharging equipment and method for a nucleic acid detection swab. The automatic discharging equipment of the nucleic acid detection swab comprises a rack component, a detection component, a transmission component, a compression component, a pushing component, a clamping component and a control component. The frame subassembly includes material loading subassembly and ejection of compact subassembly, and transmission assembly includes drive assembly and drive assembly, compresses tightly the subassembly and compress tightly the subassembly including first compressing tightly subassembly and second, pushes away material subassembly and includes step motor driver and step motor, and clamping assembly is including pressing from both sides tight structure and a set of third ears electric putter. The nucleic acid detection staff can control the swab to automatically discharge by manual non-contact through the infrared induction switch on the equipment shell, so that the swab can be conveniently and simply extracted, and the tedious actions of frequently and manually tearing the swab bag to extract the swab in the nucleic acid detection process of the nucleic acid detection staff can be replaced.
Description
Technical Field
The invention belongs to the technical field of computer technology and automation equipment, in particular relates to automatic discharging equipment and method for a nucleic acid detection swab, and particularly relates to automatic discharging equipment and method for the nucleic acid detection swab under the control of a programmable logic controller.
Background
Nucleic acid detection is performed by PCR (polymerase chain reaction) expansion technology on nasopharyngeal swabs, pharyngeal swabs, and also lower respiratory tract secretions, such as sputum, airway aspirates, or blood, feces, urine, and the like. The detection result is affected by the course of disease, the detection process, sample collection, detection reagents and the like, false negative can sometimes occur, and in order to improve the detection accuracy, the sample collection should be standardized, and the sample collection should be followed by the sample collection and the detection. At present, nasopharyngeal swabs are used as samples for detection mainly because the samples are convenient to collect, but sputum is often used as the samples for detection in order to improve the accuracy of positive detection.
In recent years, the nucleic acid detecting process has not only caused the tiredness of the detecting person, but also required the consumption of a large number of nucleic acid detecting swabs. In the process of detecting nucleic acid by a large number of nucleic acid detection workers wearing protective clothing, the swab bag needs to be torn frequently and manually to extract swabs, and long-time complicated mechanical actions for extracting swabs can enable the detection workers to increase labor intensity, form fatigue, influence emotion and damage physical and mental health.
Therefore, related scientific researchers successively develop nucleic acid detection robots, nucleic acid detection self-service machines, nucleic acid detection swab automatic discharging equipment and the like. The related equipment for detecting the nucleic acid replaces a part of the work of the nucleic acid detecting personnel, reduces the labor intensity of the detecting personnel, and realizes the unmanned, automatic and intelligent nucleic acid detecting process to a certain extent. However, some equipment and technical defects and shortcomings appear in the actual use process, and the main manifestations are as follows: (1) The control precision of the equipment is low in relation to the automatic discharging process of the nucleic acid detection swab, so that mechanical problems such as bending, breakage, blocking and the like of a swab rod in the swab discharging process are caused, and invalid loss of the detection swab is caused; (2) The intelligent degree of the equipment is low, the discharging working efficiency is low, the mechanical structure is complex, and the installation is inconvenient; (3) The device does not provide a communication structure with an upper computer and a controller, cannot realize a networking function, and cannot be configured in the nucleic acid detection robot device; (4) In the process of manually using the equipment, the swab is controlled to discharge through the manual control button or the touch screen, so that the hands of the user are contacted with the equipment, the risk of cross contamination is not only caused, but also the step of hand disinfection of the staff is increased.
Disclosure of Invention
In view of the above, the invention aims to provide an automatic discharging device for a nucleic acid detection swab, which aims to solve the mechanical problems of bending, breaking, blocking and the like of a swab rod in the swab discharging process due to the fact that the control precision of the automatic discharging process of the nucleic acid detection swab is not high and the mechanical structure of the device is complex.
In addition, another object of the present invention is to provide an automatic discharging method of a nucleic acid detecting swab, which aims to overcome the defects that the automatic discharging of the nucleic acid detecting swab has low intelligent degree, low discharging working efficiency, no communication structure with an upper computer and a controller is provided, the networking function cannot be realized, and the automatic discharging cannot be effectively connected with a nucleic acid detecting robot.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
nucleic acid detects swab automatic discharging equipment includes:
the frame subassembly includes at least: a bottom plate;
the feeding assembly is arranged on the bottom plate, wherein the feeding assembly at least comprises a feeding guide plate; and
the discharging assembly is arranged at the rear of the feeding assembly and is fixed on the bottom plate, wherein the discharging assembly at least comprises a discharging guide plate, and the feeding guide plate and the discharging guide plate are mutually spliced to form a receiving platform for detecting the swab bag.
The detection component at least comprises:
the first diffuse reflection photoelectric sensor is arranged on the feeding guide plate and is used for detecting whether continuous swab bags completely enter the automatic discharging equipment or not and sending feeding information of the swab bags to the control assembly;
a second diffuse reflection photoelectric sensor arranged on the discharge guide plate and used for detecting whether the continuous swab bags are all withdrawn from the automatic discharge device and sending the discharge information of the swab bags to the control assembly, and
the color code sensor is arranged on the feeding guide plate and used for identifying black color codes on the back surface outside the continuous swab bags and sending information for identifying the swab bags to the control assembly.
The transmission assembly includes:
the driving assembly is fixed on the frame assembly and used for providing driving force for the transmission assembly; and
the transmission assembly comprises a first transmission unit and a second transmission unit which are identical in structure and are respectively arranged on the feeding assembly and the discharging assembly, and the first transmission unit and the second transmission unit are simultaneously connected with the driving assembly; the first transmission unit is provided with two groups of first roller transmission mechanisms which are arranged vertically symmetrically, and is used for driving the swab bag arranged between the upper group of first roller transmission mechanisms and the lower group of first roller transmission mechanisms to move and transmit the swab bag to the position of the color mark sensor on the feeding guide plate under the rotation action of the first roller transmission mechanisms; the second transmission unit is provided with two groups of second roller transmission mechanisms which are arranged up and down symmetrically, and is used for driving the movement of the swab bag to be transmitted to the outside of the discharging guide plate through the rotation action of the second roller transmission mechanisms.
Compressing tightly the subassembly, including:
the first compressing assembly is fixed on the frame assembly and used for compressing the front end of the swab bag when the transmission assembly transmits the swab bag to the position of the color code sensor; the first pressing component is provided with a first double-lug electric push rod capable of achieving lifting and a first pressing block structural part used for pressing the front end of the swab rod, and the first pressing block structural part is provided with a first guiding concave cavity used for guiding the swab rod during ejection; and
the second compressing assembly is fixed on the pushing assembly and is used for compressing the rear end of the swab bag when the transmission assembly transmits the swab bag to the position of the color code sensor; the second pressing component is provided with a second double-lug electric push rod capable of achieving lifting and a second pressing block structural part used for pressing the rear end of the swab rod, and the second pressing block structural part is provided with a second guiding concave cavity used for guiding the swab rod during ejection.
The pushing component is fixed on the frame component, wherein the pushing component comprises: the device comprises a stepping motor driver and a stepping motor, wherein the stepping motor is provided with a sliding table which moves in a reciprocating manner, a connecting seat is fixed on the sliding table, the connecting seat is provided with a vertical part, a second pressing component is fixed on the vertical part and used for immediately being driven by the stepping motor driver when the first pressing component and the second pressing component simultaneously press the swab rod, so that the sliding table, the connecting seat and the second pressing component are driven to move from the rear end of the swab rod to the front end of the swab rod, and the swab rod is ejected from a swab bag by the vertical part of the connecting seat.
The clamping assembly is fixed on the bottom plate and arranged in front of the pushing assembly and is used for clamping the ejected swab rod; the clamping assembly is provided with a V-shaped clamping structural member and a group of third double-lug electric push rods which are symmetrically arranged and can be lifted; after the swab rod is clamped by the clamping assembly, the stepping motor immediately drives the sliding table, the connecting seat and the second pressing assembly to move in a return stroke mode, the swab bag is flattened and unfolded, and then the first pressing assembly and the second pressing assembly are lifted upwards simultaneously to loosen the swab bag.
And the control assembly is fixed on the frame assembly and is used for sending control signals of the control detection assembly, the transmission assembly, the compression assembly, the pushing assembly and the clamping assembly and performing corresponding action control.
Further, the material loading subassembly includes: the feeding guide plates are arranged between the feeding support plates; in addition, a connecting plate is arranged between the two oppositely arranged feeding supporting plates;
the outfeed assembly includes: the device comprises a group of discharging support plates which are fixed on a bottom plate and are symmetrically arranged in parallel, discharging guide plates are arranged between the discharging support plates, and a receiving platform for detecting the swab bag is formed after the discharging guide plates and the feeding guide plates are mutually spliced.
Further, the detection assembly further comprises: the rectangular optical fiber sensor is arranged on the clamping structural member and used for detecting the ejected length of the swab rod and sending the ejected length information of the swab rod to the control assembly.
Further, the driving assembly includes: the servo driver is installed on the connecting plate, and the output end of the servo driver is connected with the belt gear driving structure, wherein the belt gear driving structure comprises: the servo driver comprises a first belt gear connected with the output end of the servo driver, a second belt gear connected with the first belt gear through a first belt, a third belt gear coaxially rotated with the second belt gear and a fourth belt gear connected with the third belt gear through a second belt;
the two groups of roller transmission mechanisms which are vertically and symmetrically arranged in the first transmission unit are respectively a first driving roller transmission mechanism and a first driven roller transmission mechanism, the structures of the first driving roller transmission mechanism and the first driven roller transmission mechanism are the same, wherein the first driving roller transmission mechanism is positioned above the feeding guide plate, the first driven roller transmission mechanism is positioned below the feeding guide plate, and the first driving roller transmission mechanism drives the two rollers which are horizontally and symmetrically arranged in the first driving roller transmission mechanism to simultaneously rotate through a first rotating shaft in the second belt gear, so that a swab bag positioned between the first driving roller transmission mechanism and the first driven roller transmission mechanism is transmitted to the position of a feeding sensor of the feeding guide plate; in addition, a group of first feeding blank holders which are identical in structure and symmetrically arranged and are positioned in front of the first driving roller transmission mechanism are further arranged on the feeding guide plate, and the distance between the two first feeding blank holders is exactly the whole length of the swab bag, wherein the first feeding blank holders are provided with a first arc part far away from the surface of the feeding guide plate and a first limiting part closely attached to the surface of the feeding guide plate;
The two groups of roller transmission mechanisms which are vertically and symmetrically arranged in the second transmission unit are respectively a second driving roller transmission mechanism and a second driven roller transmission mechanism, the structures of the second driving roller transmission mechanism and the second driven roller transmission mechanism are the same, wherein the second driving roller transmission mechanism is positioned above the discharging guide plate, the second driven roller transmission mechanism is positioned below the discharging guide plate, and the second driving roller transmission mechanism drives two rollers which are horizontally and symmetrically arranged in the second driving roller transmission mechanism to simultaneously rotate through a second rotating shaft in the fourth belt gear, so that swab bags positioned between the second driving roller transmission mechanism and the second driven roller transmission mechanism are transmitted to the outside of the discharging guide plate; in addition, a group of second feeding blank holders which are identical in structure and are symmetrically arranged and positioned in front of the second driving roller transmission mechanism are further arranged on the discharging guide plate, and the distance between the two second feeding blank holders is just the whole length of the swab bag, wherein the second feeding blank holders are provided with a second arc part far away from the surface of the discharging guide plate and a second limiting part clung to the surface of the discharging guide plate.
Further, the first double-lug electric push rod in the first compression assembly is fixed on the connecting plate through the mounting seat, the first compression block structural member comprises a first compression block and a first compression block fixing plate fixed on the lower surface of the first compression block, compression angle irons and first guide blocks are correspondingly fixed on the lower surface of the first compression block fixing plate through a first compression spring and a second compression spring respectively, and meanwhile, a first guide concave cavity for guiding a swab rod during ejection is formed in the first guide block;
the second double-lug electric push rod in the second pressing assembly is fixed on the pushing assembly through a connecting seat, the second pressing block structural part comprises a second pressing block and a second pressing block fixing plate fixed on the lower surface of the second pressing block, the lower surface of the second pressing block fixing plate is fixed with a second guide block through a third compression spring, and a second guide concave cavity for guiding the swab rod during ejection is arranged on the second guide block.
Further, the stepping motor in the pushing assembly is fixed on the bottom plate of the frame through the I-shaped mounting seat, and meanwhile, the stepping motor is arranged below the color code sensor and between the feeding support plate and the discharging support plate.
Further, the clamping structure of V-arrangement and the electric putter of third ears in the clamping assembly are all fixed on the frame bottom plate through clamping the mounting panel, wherein, the clamping structure of V-arrangement is including having the lower stopper of V-arrangement structure and having the last stopper of V-arrangement structure, goes up stopper, lower stopper and is connected with electric putter of third ears respectively, and rectangular optical fiber sensor locates down on the stopper, simultaneously, clamping the mounting panel still is equipped with a through-hole portion that is used for stretching out the swab stick.
Further, the control assembly comprises a PLC controller, the PLC controller receives the detection signals of the detection assembly and then sends out control signals, the transmission assembly is controlled to transmit continuous swab bags to a designated position, then the compression assembly is controlled to compress the swab bags reaching the designated position, meanwhile, the pushing assembly is controlled to push out swab rods in the swab bags, after the swab rods are pushed out by a set length, the clamping assembly is controlled to clamp the pushed-out swab rods, then the pushing assembly is controlled to return motion to stretch the swab bags, and finally the compression assembly is controlled to loosen the swab bags, so that the ejection process of one swab rod is completed.
Further, the automatic discharging equipment of the nucleic acid detection swab further comprises a protective cover, an infrared induction switch, a power switch and a power indicator lamp are arranged on the upper surface of the protective cover, a swab rod discharging hole is formed in the side face of the protective cover, and a communication port and a communication wiring terminal are further arranged on the protective cover.
In addition, the invention also discloses an automatic discharging method of the nucleic acid detection swab, which comprises the following steps:
step 1: placing a swab bag strip on a feeding guide plate, enabling one end of the swab bag strip to pass through a gap between two groups of first roller transmission mechanisms which are symmetrically arranged up and down in a transmission assembly, detecting the swab bag strip at the feeding end by a first diffuse reflection photoelectric sensor, and sending feeding state information of the swab bag strip to a PLC (programmable logic controller) to enable equipment to enter a ready state;
step 2: triggering an infrared induction switch, sending a starting signal to an input interface of a PLC (programmable logic controller), triggering equipment to start operation, outputting a motion instruction to a servo driver through control of the PLC, driving a transmission component of the equipment to move, driving a swab bag strip to transport to a discharge end through rotation action in a first transmission unit and a second transmission unit, completing feeding preparation of a first swab when the swab bag strip moves to a designated position of a color code sensor, and carrying out short delay for 1-2 seconds;
Step 3: the PLC controls corresponding double-lug electric push rods in the first compression assembly and the second compression assembly to move downwards simultaneously, and compresses a single swab to carry out short delay of 1-2 seconds;
step 4: the PLC controller controls the first compression assembly to keep still, the stepping motor drives the second compression assembly to move towards the direction of the first compression assembly, the swab rod is ejected out of the swab bag for a set length and then stopped, and short delay is carried out for 1-2 seconds;
step 5: the PLC controller controls the clamping assembly to start clamping action, the swab rod is clamped by the upper and lower third double-lug electric push rods, the position of the swab rod is fixed, after the rectangular optical fiber sensor detects the swab rod, the stepping motor drives the second pressing assembly to move in a return stroke, the swab bag is leveled, and short delay is carried out for 1-2 seconds;
step 6: the PLC controls the first compression assembly and the second compression assembly to complete lifting action, and the first double-lug electric push rod and the second double-lug electric push rod stop running after being retracted, and carry out short delay of 1-2 seconds;
step 7: the PLC controller controls the clamping assembly to start to release, the upper and lower third double-lug electric push rods stop running after releasing the swab sticks, and the swabs are manually extracted, so that the extraction of the current swabs is completed.
The invention has the beneficial effects that:
(1) The swab bag can be frequently torn manually and the tedious actions of extracting the swab can be replaced in the process of detecting the nucleic acid by a nucleic acid detection worker.
(2) The nucleic acid detection staff can automatically discharge the swab through the infrared induction switch on the equipment shell by manual non-contact control, so that the swab can be conveniently and simply extracted.
(3) The invention is based on the electromechanical transmission equipment controlled by the Programmable Logic Controller (PLC), carries out the automatic discharging process of the nucleic acid swab, and provides a computer communication control interface and an electrical control terminal interface, thereby being convenient for equipment integration in the nucleic acid detection robot equipment.
(4) The device has an intelligent control function, is provided with an expert knowledge base, and can execute the device fault diagnosis function in the swab discharging process.
(5) The device PLC is provided with the RS-485 interface, so that the device PLC can be conveniently connected with a Siemens industry TD400C text display and other touch screens to monitor the device state, the swab usage amount, manual control buttons and other configurations.
(6) Through the control terminal interface that equipment provided, the disinfection equipment of connection that can be convenient triggers disinfection equipment and disinfects to detecting the swab ejection of compact process, reduces the risk of the cross contamination that frequent extraction swab arouses in the nucleic acid detection process.
(7) The device has the advantages of small volume, light weight, simple and convenient installation and high automation degree, and can effectively solve the mechanical problems of bending, breaking, blocking and the like of the swab rod in the swab discharging process.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the front side of the automatic discharging device after the protective cover is removed;
FIG. 3 is a schematic view of the rear side of the automatic discharging device of the present invention after the protective cover is removed;
FIG. 4 is a schematic view of a protective cover assembly according to the present invention;
FIG. 5 is a schematic view of the front side structure of a rack assembly in accordance with the present invention;
FIG. 6 is a schematic view of the rear side structure of the rack assembly in accordance with the present invention;
FIG. 7 is a schematic view of a swab stick clamping assembly according to the present invention;
FIG. 8 is a schematic view of the front end compression assembly of the swab in accordance with the present invention;
FIG. 9 is a schematic view of a first press block structure of the structure of FIG. 8;
FIG. 10 is a schematic view of a rear end compression assembly of a swab in accordance with the present invention;
fig. 11 is a schematic view of the structure of the second press block structure of the structure of fig. 9.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 11, the nucleic acid detecting swab automatic discharging apparatus includes: the device comprises a frame assembly 100, a detection assembly 200, a transmission assembly 300, a compacting assembly 400, a pushing assembly 500, a clamping assembly 600 and a control assembly 700.
As shown in fig. 2 to 6, in the present invention, the rack assembly 100 includes: a bottom plate 101, a loading assembly 102 and an unloading assembly 103.
Wherein, the feeding assembly 102 includes: a group of feeding support plates 104 which are fixed on the bottom plate 101 and are symmetrically arranged in parallel, and feeding guide plates 105 are arranged between the feeding support plates 104; furthermore, a connecting plate 106 is arranged between the two oppositely arranged loading support plates 104.
The outfeed assembly 103 comprises: a group of discharge supporting plates 107 which are fixed on the bottom plate 101 and are arranged in parallel and symmetrically, a discharge guide plate 108 is arranged between the discharge supporting plates 107, and the discharge guide plate 108 and the feeding guide plate 105 are mutually spliced to form a receiving platform for detecting the swab bag.
As shown in fig. 5 to 7, in the present invention, the detecting unit 200 includes:
a first diffuse reflection photoelectric sensor 201, which is arranged on the feeding guide plate 105, and is used for detecting whether all continuous swab bags enter the automatic discharging equipment, and sending the feeding information of the swab bags to the control component 700;
A second diffuse reflection photoelectric sensor 202, disposed on the discharge guide plate 108, for detecting whether the continuous swab bags are all withdrawn from the automatic discharge device, and sending the discharge information of the swab bags to the control assembly 700;
the color code sensor 203 is arranged on the feeding guide plate 105 and is used for identifying black color codes on the outer back surface of the continuous swab bags and sending information for identifying the swab bags to the control assembly 700; and
the rectangular optical fiber sensor 204 is disposed on a clamping structure 601 provided in the clamping assembly 600, and is used for detecting the ejected length of the swab stick and transmitting the ejected length information of the swab stick to the control assembly 700.
As shown in fig. 5 to 6, in the present invention, the transmission assembly 300 includes: a drive assembly 301 and a transmission assembly 302.
The driving assembly 301 is fixed on the frame assembly 100, and is used for providing driving force for the transmission assembly 302; in the present invention, the driving assembly 301 includes: the servo driver 303 and the belt gear driving structure, the servo driver 303 is installed on the connecting plate 106, and the output end of the servo driver 303 is connected with the belt gear driving structure, wherein the belt gear driving structure comprises: a first belt gear 304 connected to an output end of the servo driver 303, a second belt gear 306 connected to the first belt gear 304 through a first belt 305, a third belt gear 307 coaxially rotated with the second belt gear 306, and a fourth belt gear 309 connected to the third belt gear 307 through a second belt 308.
The transmission assembly 302 comprises a first transmission unit and a second transmission unit which have the same structure and are respectively arranged on the feeding assembly 102 and the discharging assembly 103, and the first transmission unit and the second transmission unit are simultaneously connected with the driving assembly 301; the first transmission unit is provided with two groups of first roller transmission mechanisms which are arranged vertically symmetrically, and is used for driving the movement of the swab bag to be transmitted to the position of the color mark sensor 203 on the feeding guide plate 105 through the rotation action of the first roller transmission mechanisms, wherein the swab bag is arranged between the upper group of first roller transmission mechanisms and the lower group of first roller transmission mechanisms; the second transmission unit is provided with two groups of second roller transmission mechanisms which are arranged up and down symmetrically, and is used for driving the movement of the swab bag to be transmitted to the outside of the discharge guide plate 108 through the rotation action of the second roller transmission mechanisms.
With reference to fig. 5-6, it can be seen that: the two sets of roller transmission mechanisms which are vertically and symmetrically arranged in the first transmission unit are respectively a first driving roller transmission mechanism 310 and a first driven roller transmission mechanism 311, the first driving roller transmission mechanism 310 and the first driven roller transmission mechanism 311 have the same structure, wherein the first driving roller transmission mechanism 310 is positioned above the feeding guide plate 105, the first driven roller transmission mechanism 311 is positioned below the feeding guide plate 105, and the first driving roller transmission mechanism 310 drives the two rollers which are horizontally and symmetrically arranged in the first driving roller transmission mechanism 310 to simultaneously rotate through a first rotating shaft 312 in the second belt gear 306, so that a swab bag positioned between the first driving roller transmission mechanism 310 and the first driven roller transmission mechanism 311 is transmitted to the feeding guide plate 105 at the position of the color marking sensor 203; in addition, the feeding guide plate 105 is further provided with a group of first feeding blank holders 313 which are arranged in a symmetrical manner and have the same structure and are positioned in front of the first active roller transmission mechanism 310, and the distance between the two first feeding blank holders 313 is exactly the whole length of the swab bag, wherein the first feeding blank holders 313 are provided with a first arc part far away from the surface of the feeding guide plate 105 and a first limiting part closely attached to the surface of the feeding guide plate 105;
The two sets of roller transmission mechanisms symmetrically arranged up and down in the second transmission unit are a second driving roller transmission mechanism 314 and a second driven roller transmission mechanism 315 respectively, and the structures of the second driving roller transmission mechanism 314 and the second driven roller transmission mechanism 315 are the same, wherein the second driving roller transmission mechanism 314 is positioned above the discharging guide plate 108, the second driven roller transmission mechanism 315 is positioned below the discharging guide plate 108, and the second driving roller transmission mechanism 314 drives two rollers which are horizontally symmetrically arranged in the second driving roller transmission mechanism 314 to rotate simultaneously through a second rotating shaft 316 in the fourth belt gear 309, so that swab bags positioned between the second driving roller transmission mechanism 314 and the second driven roller transmission mechanism 315 are transmitted to the outside of the discharging guide plate 108; in addition, the discharging guide plate 108 is further provided with a set of second feeding blank holders 317 which are arranged in the same and symmetrical manner and are positioned in front of the second driving roller transmission mechanism 314, and the distance between the two second feeding blank holders 317 is exactly the whole length of the swab bag, wherein the second feeding blank holders 317 are provided with a second arc part far away from the surface of the discharging guide plate 108 and a second limiting part closely attached to the surface of the discharging guide plate 108.
As shown in fig. 8 to 11, in the present invention, the compressing assembly 400 includes: a first compression assembly 401 and a second compression assembly 402.
The first compressing assembly 401 is fixed on the frame assembly 100, and is used for compressing the front end of the swab bag when the transmission assembly 302 transmits the swab bag to the position of the color scale sensor 203.
The first pressing component 401 is provided with a first double-lug electric push rod 403 capable of lifting and a first pressing block structural part 404 used for pressing the front end of the swab rod. Here, the first binaural electric putter 403 according to the present invention is fixed to the connecting plate 106 by the mount 405.
Meanwhile, the first press block structural member 404 includes a first press block 406 and a first press block fixing plate 407 fixed on the lower surface of the first press block 406, where the lower surface of the first press block fixing plate 407 is correspondingly fixed with a compression angle iron 410 and a first guide block 411 through a first compression spring 408 and a second compression spring 409, and meanwhile, a first guide cavity 414 for guiding the swab rod during ejection is provided on the first guide block 411.
Also noted herein is: the first guide block 411 has a large-mouth receiving portion 412 and a small-mouth receiving portion 413, the large-mouth receiving portion 412 is connected to the small-mouth receiving portion 413, the large-mouth receiving portion 412 is disposed in front of the small-mouth receiving portion 413, and at the same time, the large-mouth receiving portion 412 and the small-mouth receiving portion 413 have a first guide cavity 414 penetrating through them. In the present invention, the large-mouth housing portion 412 has a trapezoidal shape, and the small-mouth housing portion 413 has a square shape.
In the present invention, a second compression assembly 402, secured to the pushing assembly 500, is used to compress the rear end of the swab bag as the drive assembly 302 transfers the swab bag to the location of the color scale sensor 203.
Wherein the second compression assembly 402 has a second dual-ear motorized push rod 415 capable of lifting and a second compression block structure 416 for compressing the rear end of the swab stick. Here, the second dual-ear electric putter 415 according to the present invention is fixed to the pusher assembly 500 through the connection base 417.
Meanwhile, the second press block structural member 416 comprises a second press block 418 and a second press block fixing plate 419 fixed on the lower surface of the second press block 418, the lower surface of the second press block fixing plate 419 is fixed with a second guide block 421 through a third compression spring 420, and a second guide concave cavity 422 for guiding the swab rod during ejection is arranged on the second guide block 421. In the present invention, the second guide block 421 has a hollow square shape.
As shown in fig. 2-3, in the present invention, the pushing assembly 500 includes: the device comprises a stepping motor driver 501 and a stepping motor 502, wherein the stepping motor 502 is provided with a sliding table 503 which moves back and forth, a connecting seat 417 is fixed on the sliding table 503, the connecting seat 417 is provided with a vertical part, a second pressing component 402 is fixed on the vertical part, and the stepping motor 502 is immediately driven by the stepping motor driver 501 when the first pressing component 401 and the second pressing component 402 simultaneously press the swab stick, so that the sliding table 503, the connecting seat 417 and the second pressing component 402 are driven to move from the rear end of the swab stick to the front end of the swab stick, and meanwhile, the swab stick is ejected from a swab bag by the vertical part of the connecting seat 417.
In the present invention, the stepper motor 502 is fixed on the frame base plate 101 through the i-shaped mounting seat 504, and the stepper motor 502 is disposed below the color mark sensor 203 and between the feeding support plate 104 and the discharging support plate 107.
As shown in fig. 7, in the present invention, a clamping unit 600 is fixed to the base plate 101 and is disposed in front of the pushing unit 500, for clamping the ejected swab stick.
Wherein the clamping assembly 600 has a V-shaped clamping structure 601 and a set of symmetrically arranged third binaural electric push rods 602 capable of lifting; here, both the V-shaped clamping structure 601 and the third binaural motor-push rod 602 are fixed to the chassis base plate 101 by a clamping mounting plate 603. After the swab stick is clamped by the clamping assembly 600, the stepping motor 502 immediately drives the sliding table 503, the connecting seat 417 and the second compressing assembly 402 to return, so that the swab bag is flattened and unfolded, and then the first compressing assembly 401 and the second compressing assembly 402 are lifted upwards simultaneously to release the swab bag.
In the present invention, the V-shaped clamping structure 601 includes a lower limiting block 604 having a V-shaped structure and an upper limiting block 605 having a V-shaped structure, the upper limiting block 605 and the lower limiting block 604 are respectively connected to the third binaural electric push rod 602, and the rectangular optical fiber sensor 204 is disposed on the lower limiting block 604, and at the same time, the clamping mounting plate 603 is further provided with a through hole portion 606 for extending out of the swab rod.
As shown in fig. 2, in the present invention, the control assembly 700 includes: the PLC controller 701, the two-way relay 702, the one-way relay 703 and the stepper motor driver 501 are configured to send control signals for controlling the detection assembly 200, the transmission assembly 300, the pressing assembly 400, the pushing assembly 500 and the clamping assembly 600, and perform corresponding motion control.
In the present invention, the PLC controller 701, the two-way relay 702, the one-way relay 703 and the stepper motor driver 501 are all fixed to the rack assembly 100. The PLC controller 701 receives the detection signal from the detection module 200 and then sends a control signal, so as to control the transmission module 300 to transmit the continuous swab bags to a designated position, then control the compression module 400 to compress the swab bags reaching the designated position, and simultaneously control the pushing module 500 to push out the swab sticks in the swab bags, when the swab sticks are pushed out by a set length, control the clamping module 600 to clamp the pushed-out swab sticks, then control the pushing module 500 to return motion to stretch the swab bags, and finally control the compression module 400 to release the swab bags, so as to complete the ejection process of one swab stick.
The two-way relay 702 of the present invention is used for electrically isolating and protecting and controlling output moving elements such as the servo driver 303, the pressing assembly 400, the pushing assembly 500 and the clamping assembly 600 by the PLC controller 701 of the apparatus of the present invention. The single-pass relay 703 is used for isolation of the PLC controller 701 from external input control signals and from external output feedback signals in the apparatus of the present invention.
The output terminal part of the PLC controller 701 is directly connected to the input terminal part of the stepper motor driver 501, the output terminal of the stepper motor driver 501 is directly connected to the stepper motor 502, and the stepper motor 502 is connected to the screw rod through a coupling to drive the sliding table 503 to move along the direction of the screw rod. The PLC controller 701 can control the direction, speed, and amount of movement of the slide table 503 by controlling the direction, speed, and amount of rotation of the stepping motor 502 by the stepping motor driver 501.
In the case of the automatic discharging device based on the nucleic acid detecting swab disclosed above, the present invention further designs a protective cover 800 for protection. The upper surface of the protective cover 800 is provided with an infrared induction switch 801, a power switch 802 and a power indicator 803, and meanwhile, the side surface of the protective cover 800 is provided with a swab stick outlet, and the protective cover 800 is provided with a communication port 804 and a communication connection terminal 805. In the present invention, the power supply 806 supplies power to its entire device and is fixed to the chassis base 101.
Finally, the invention also provides an automatic discharging method of the nucleic acid detection swab based on the automatic discharging equipment of the nucleic acid detection swab, which comprises the following steps:
Step 1: placing the swab bag strip 900 on the feeding guide plate 105, enabling one end of the swab bag strip 900 to pass through a gap between two groups of first roller transmission mechanisms which are symmetrically arranged up and down in the transmission assembly 300, detecting the swab bag strip 900 at the feeding end by the first diffuse reflection photoelectric sensor 201, and sending feeding state information of the swab bag strip 900 to the PLC 701 to enable the device to enter a ready state;
step 2: triggering an infrared induction switch 801, sending a starting signal to an input interface of a PLC (programmable logic controller) 701, starting the operation of the triggering device, outputting a motion instruction to a servo driver 303 through the control of the PLC 701, driving a transmission component 302 of the driving device to move, driving a swab bag strip 900 to transport to a discharge end through the rotation action in a first transmission unit and a second transmission unit, and completing the feeding preparation of a first swab when the swab bag strip 900 moves to a designated position of a color code sensor 203, and performing short delay for 1-2 seconds;
step 3: the PLC 701 controls corresponding double-lug electric push rods in the first compression assembly 401 and the second compression assembly 402 to move downwards simultaneously, and compresses a single swab to carry out short delay of 1-2 seconds;
step 4: the PLC 701 controls the first compression assembly 401 to keep still, the stepping motor 502 drives the second compression assembly 402 to move towards the first compression assembly 401, the swab stick is ejected out of the swab bag for a set length and then stopped, and a short delay time of 1-2 seconds is carried out;
Step 5: the PLC 701 controls the clamping assembly 600 to start clamping, the swab rod is clamped by the upper and lower third double-lug electric push rods 602, the position of the swab rod is fixed, after the rectangular optical fiber sensor 204 detects the swab rod, the stepping motor 502 drives the second pressing assembly 402 to do return motion, the swab bag is leveled, and short delay is carried out for 1-2 seconds;
step 6: the PLC 701 controls the first compression assembly 401 and the second compression assembly 402 to complete lifting action, and the first double-ear electric push rod 403 and the second double-ear electric push rod 415 stop running after being retracted, and a short delay time of 1-2 seconds is carried out;
step 7: the PLC 701 controls the clamping assembly 600 to start to release, the swab rod is released by the upper and lower third double-lug electric push rods 602 and then stops running, and the swab is manually extracted, so that the extraction of the current swab is completed.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (3)
1. Nucleic acid detects swab automatic discharging equipment, its characterized in that includes:
the frame subassembly includes at least: a bottom plate;
the feeding assembly is arranged on the bottom plate and at least comprises a feeding guide plate; and
the discharging assembly is arranged at the rear of the feeding assembly and is fixed on the bottom plate, the discharging assembly at least comprises a discharging guide plate, and the feeding guide plate and the discharging guide plate are mutually spliced to form a receiving platform for detecting the swab bag;
the detection component at least comprises:
the first diffuse reflection photoelectric sensor is arranged on the feeding guide plate and is used for detecting whether continuous swab bags completely enter the automatic discharging equipment or not and sending feeding information of the swab bags to the control assembly;
a second diffuse reflection photoelectric sensor arranged on the discharge guide plate and used for detecting whether the continuous swab bags are all withdrawn from the automatic discharge device and sending the discharge information of the swab bags to the control assembly, and
the color code sensor is arranged on the feeding guide plate and used for identifying black color codes on the back surface outside the continuous swab bags and sending information for identifying the swab bags to the control assembly;
the transmission assembly includes:
The driving assembly is fixed on the frame assembly and used for providing driving force for the transmission assembly; and
the transmission assembly comprises a first transmission unit and a second transmission unit which are identical in structure and are respectively arranged on the feeding assembly and the discharging assembly, and the first transmission unit and the second transmission unit are connected with the driving assembly; the first transmission unit is provided with two groups of first roller transmission mechanisms which are arranged vertically symmetrically, and is used for driving the movement of the swab bag to be transmitted to the position of the color mark sensor on the feeding guide plate through the rotation action of the first roller transmission mechanisms, wherein the swab bag is arranged between the upper group of first roller transmission mechanisms and the lower group of first roller transmission mechanisms; the second transmission unit is provided with two groups of second roller transmission mechanisms which are arranged up and down symmetrically, and is used for driving the movement of the swab bag to be transmitted to the outside of the discharge guide plate through the rotation action of the second roller transmission mechanisms;
compressing tightly the subassembly, including:
the first compressing assembly is fixed on the frame assembly and used for compressing the front end of the swab bag when the transmission assembly transmits the swab bag to the position of the color code sensor; the first pressing component is provided with a first double-lug electric push rod capable of achieving lifting and a first pressing block structural part used for pressing the front end of the swab rod, and the first pressing block structural part is provided with a first guiding concave cavity used for guiding the swab rod during ejection; and
The second compressing assembly is fixed on the pushing assembly and is used for compressing the rear end of the swab bag when the transmission assembly transmits the swab bag to the position of the color code sensor; the second pressing component is provided with a second double-lug electric push rod capable of achieving lifting and a second pressing block structural part used for pressing the rear end of the swab rod, and the second pressing block structural part is provided with a second guiding concave cavity used for guiding the swab rod during ejection;
the pushing component is fixed on the frame component, and the pushing component comprises: the device comprises a stepping motor driver and a stepping motor, wherein the stepping motor is provided with a sliding table which moves back and forth, a connecting seat is fixed on the sliding table, the connecting seat is provided with a vertical part, a second pressing component is fixed on the vertical part, and the stepping motor is immediately driven by the stepping motor driver when the first pressing component and the second pressing component simultaneously press the swab stick, so that the sliding table, the connecting seat and the second pressing component are driven to move from the rear end of the swab stick to the front end of the swab stick, and the swab stick is ejected out of a swab bag by the vertical part of the connecting seat;
the clamping assembly is fixed on the bottom plate and arranged in front of the pushing assembly and is used for clamping the ejected swab rod; the clamping assembly is provided with a V-shaped clamping structural member and a group of third double-lug electric push rods which are symmetrically arranged and can be lifted; after the swab rod is clamped by the clamping assembly, the stepping motor immediately drives the sliding table, the connecting seat and the second pressing assembly to return, so that the swab bag is flattened and unfolded, and then the first pressing assembly and the second pressing assembly are lifted upwards to loosen the swab bag;
The control assembly is fixed on the frame assembly and is used for sending control signals of the control detection assembly, the transmission assembly, the compression assembly, the pushing assembly and the clamping assembly and performing corresponding action control;
the material loading subassembly includes: the feeding guide plates are arranged between the feeding support plates; in addition, a connecting plate is arranged between the two oppositely arranged feeding supporting plates;
the outfeed assembly includes: the discharging support plates are fixed on the bottom plate and are symmetrically arranged in parallel, discharging guide plates are arranged between the discharging support plates, and the discharging guide plates and the feeding guide plates are mutually spliced to form a receiving platform for detecting the swab bag;
the detection assembly further comprises: the rectangular optical fiber sensor is arranged on the clamping structural member and is used for detecting the ejected length of the swab stick and sending the ejected length information of the swab stick to the control assembly;
the drive assembly includes: the servo driver is arranged on the connecting plate, the output end of the servo driver is connected with the belt gear driving structure, and the belt gear driving structure comprises: the servo driver comprises a first belt gear connected with the output end of the servo driver, a second belt gear connected with the first belt gear through a first belt, a third belt gear coaxially rotated with the second belt gear and a fourth belt gear connected with the third belt gear through a second belt;
The first driving roller transmission mechanisms are respectively a first driving roller transmission mechanism and a first driven roller transmission mechanism, the first driving roller transmission mechanisms and the first driven roller transmission mechanisms are identical in structure, the first driving roller transmission mechanisms are positioned above the feeding guide plate, the first driven roller transmission mechanisms are positioned below the feeding guide plate, and the first driving roller transmission mechanisms drive the two first rollers which are horizontally and symmetrically arranged in the first driving roller transmission mechanisms to rotate simultaneously through a first rotating shaft in the second belt gear, so that swab bags positioned between the first driving roller transmission mechanisms and the first driven roller transmission mechanisms are transmitted to the positions of the feeding guide plate color mark sensor; the feeding guide plate is also provided with a group of first feeding blank holders which are identical in structure and symmetrically arranged and are positioned in front of the first driving roller transmission mechanism, the distance between the two first feeding blank holders is just the whole length of the swab bag, and the first feeding blank holders are provided with a first arc part far away from the surface of the feeding guide plate and a first limiting part closely attached to the surface of the feeding guide plate;
The two groups of roller transmission mechanisms which are vertically and symmetrically arranged in the second transmission unit are respectively a second driving roller transmission mechanism and a second driven roller transmission mechanism, the structures of the second driving roller transmission mechanism and the second driven roller transmission mechanism are the same, the second driving roller transmission mechanism is positioned above the discharging guide plate, the second driven roller transmission mechanism is positioned below the discharging guide plate, and the second driving roller transmission mechanism drives two second rollers which are horizontally and symmetrically arranged in the second driving roller transmission mechanism to simultaneously rotate through a second rotating shaft in the fourth belt gear, so that swab bags positioned between the second driving roller transmission mechanism and the second driven roller transmission mechanism are transmitted to the outside of the discharging guide plate; the second feeding blank holders are symmetrically arranged in front of the second driving roller transmission mechanism, the distance between the two second feeding blank holders is exactly the whole length of the swab bag, and each second feeding blank holder is provided with a second arc part far away from the surface of the discharging guide plate and a second limiting part clung to the surface of the discharging guide plate;
The first double-lug electric push rod in the first compression assembly is fixed on the connecting plate through the mounting seat, the first compression block structural member comprises a first compression block and a first compression block fixing plate fixed on the lower surface of the first compression block, compression angle irons and first guide blocks are correspondingly fixed on the lower surface of the first compression block fixing plate through a first compression spring and a second compression spring respectively, and a first guide concave cavity for guiding the swab rod during ejection is formed in the first guide block;
the second double-lug electric push rod in the second compression assembly is fixed on the pushing assembly through a connecting seat, the second compression structure comprises a second compression block and a second compression block fixing plate fixed on the lower surface of the second compression block, the lower surface of the second compression block fixing plate is fixed with a second guide block through a third compression spring, and a second guide concave cavity for guiding the swab rod during ejection is arranged on the second guide block;
the stepping motor in the pushing assembly is fixed on the bottom plate of the frame through an I-shaped mounting seat, and is arranged below the color mark sensor and between the feeding support plate and the discharging support plate;
the V-shaped clamping structural part and the third double-lug electric push rod in the clamping assembly are both fixed on the bottom plate of the machine frame through a clamping mounting plate, the V-shaped clamping structural part comprises a lower limiting block with a V-shaped structure and an upper limiting block with a V-shaped structure, the upper limiting block and the lower limiting block are respectively connected with the third double-lug electric push rod, the rectangular optical fiber sensor is arranged on the lower limiting block, and the clamping mounting plate is also provided with a through hole part for extending out of the swab rod;
The control assembly comprises a PLC controller, the PLC controller receives the detection signals of the detection assembly and then sends out control signals, the transmission assembly is controlled to transmit continuous swab bags to a designated position, the compression assembly is controlled to compress the swab bags reaching the designated position, meanwhile, the pushing assembly is controlled to push out swab sticks in the swab bags, after the swab sticks are pushed out for a set length, the clamping assembly is controlled to clamp the pushed-out swab sticks, then the pushing assembly is controlled to return motion to stretch the swab bags, and finally the compression assembly is controlled to loosen the swab bags, so that the ejection process of one swab stick is completed.
2. The automatic nucleic acid detecting swab discharging device according to claim 1, further comprising a protective cover, wherein the upper surface of the protective cover is provided with an infrared induction switch, a power switch and a power indicator, the side surface of the protective cover is provided with a swab rod swab discharging hole, and the protective cover is provided with a communication port and a communication wiring terminal.
3. A method for automatically discharging a nucleic acid detecting swab, using the nucleic acid detecting swab automatic discharging apparatus according to any one of claims 1 to 2, comprising the steps of:
Step 1: placing a swab bag strip on a feeding guide plate, enabling one end of the swab bag strip to pass through a gap between two groups of first roller transmission mechanisms which are symmetrically arranged up and down in a transmission assembly, detecting the swab bag strip at the feeding end by a first diffuse reflection photoelectric sensor, and sending feeding state information of the swab bag strip to a PLC (programmable logic controller) to enable equipment to enter a ready state;
step 2: triggering an infrared induction switch, sending a starting signal to an input interface of a PLC (programmable logic controller), triggering equipment to start operation, outputting a motion instruction to a servo driver through control of the PLC, driving a transmission component of the equipment to move, driving a swab bag strip to transport to a discharge end through rotation action in a first transmission unit and a second transmission unit, completing feeding preparation of a first swab when the swab bag strip moves to a designated position of a color code sensor, and carrying out short delay for 1-2 seconds;
step 3: the PLC controls corresponding double-lug electric push rods in the first compression assembly and the second compression assembly to move downwards simultaneously, and compresses a single swab to carry out short delay of 1-2 seconds;
step 4: the PLC controller controls the first compression assembly to keep still, the stepping motor drives the second compression assembly to move towards the direction of the first compression assembly, the swab rod is ejected out of the swab bag for a set length and then stopped, and short delay is carried out for 1-2 seconds;
Step 5: the PLC controller controls the clamping assembly to start clamping action, the swab rod is clamped by the upper and lower third double-lug electric push rods, the position of the swab rod is fixed, after the rectangular optical fiber sensor detects the swab rod, the stepping motor drives the second pressing assembly to move in a return stroke, the swab bag is leveled, and short delay is carried out for 1-2 seconds;
step 6: the PLC controls the first compression assembly and the second compression assembly to complete lifting action, and the first double-lug electric push rod and the second double-lug electric push rod stop running after being retracted, and carry out short delay of 1-2 seconds;
step 7: the PLC controller controls the clamping assembly to start to release, the upper and lower third double-lug electric push rods stop running after releasing the swab sticks, and the swabs are manually extracted, so that the extraction of the current swabs is completed.
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| CN202310062133.0A CN115806096B (en) | 2023-01-17 | 2023-01-17 | Automatic discharging equipment and method for nucleic acid detection swab |
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| CN202310062133.0A CN115806096B (en) | 2023-01-17 | 2023-01-17 | Automatic discharging equipment and method for nucleic acid detection swab |
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| CN116280561A (en) * | 2023-04-26 | 2023-06-23 | 北京铸正机器人有限公司 | Swab stripping device and method thereof |
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