An immunochromatographic test strip coating treatment device and its treatment method

Abstract

The invention relates to the technical field of immunochromatographic test paper production, in particular to an immunochromatographic test paper coating processing device and a processing method thereof, comprising: a workbench, a connecting plate is arranged on the workbench, and a plurality of groups of coating heads are equidistantly arranged on the connecting plate; a power component, the power component can drive the connecting plate to move along the length direction of the workbench; a traction component, the traction component is used to pull the immunochromatographic test paper; a blocking adjustment plate, two groups of blocking adjustment plates cooperate to change the coating width of the coating head; an adjustment mechanism, the adjustment mechanism comprises an equidistant driving component and a bidirectional transmission component arranged in linkage, the equidistant driving component can drive the plurality of groups of coating heads to move toward or away from each other, and the bidirectional transmission component can drive the two groups of blocking adjustment plates to move; a transmission mechanism, the transmission mechanism comprises a follower component and a unidirectional transmission component, and the unidirectional transmission component can drive the traction component to move when the connecting plate moves to the end of the stroke, so as to simplify the operation and reduce the cost.

Description

Technical Field

[0001] The present invention relates to the technical field of immunochromatographic test strip production, and specifically to an immunochromatographic test strip coating treatment device and a treatment method thereof. Background Art

[0002] During the production process of immunochromatographic test strips, there are generally three kinds of solution coating treatments, namely quality control solution, detection solution, and conjugate solution (colloidal gold). Among them, the quality control and detection solutions are the solutions coated on the C / T lines.

[0003] In view of the popularization of the flow blocking technology, in the coating of the quality control and detection solutions, more users tend to use pneumatic nozzles for quantitative operation, and during batch production, spraying back and forth once at intervals can spray out twenty or thirty lines at a time, with high efficiency. After that, the sprayed immunochromatographic test strips are dried and then cut into strips.

[0004] For different types of immunochromatographic test strips, there are differences in the width of the C / T lines. When twenty or thirty lines can be sprayed out in a single spraying for the C / T lines, if the spacing of the spraying device is not adjusted when the width of the C / T lines is different, there will be a large blank space left on each cut immunochromatographic test strip, and further processing is required, resulting in an increase in production costs.

[0005] Therefore, the spraying port spacing of the existing immunochromatographic test strip coating devices is generally adjustable, and the width of the spraying port and the length of the traction of the immunochromatographic test strip are also adjustable. However, the above three adjustment forms are controlled by three independent control systems, and there is no connection between them, resulting in a long debugging time when switching to produce different specifications of immunochromatographic test strips, increasing the time cost, and the accuracy of the produced immunochromatographic test strips is relatively low. Summary of the Invention

[0006] The purpose of the present invention is to provide an immunochromatographic test strip coating treatment device and a treatment method thereof to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An immunochromatographic test strip coating treatment device, comprising:

[0009] A workbench, on which a connecting plate is provided. The connecting plate is provided with a chute along its length direction, and a plurality of groups of coating heads are equidistantly arranged in the chute;

[0010] A power assembly, arranged on the workbench and connected to the connecting plate, and the power assembly can drive the connecting plate to move along the length direction of the workbench;

[0011] The traction assemblies are provided with two groups and symmetrically installed on the workbench. The traction assemblies are used to pull the immunochromatographic test strips;

[0012] The plugging and adjusting plates are symmetrically and slidably installed at the bottom of the coating head. The two groups of plugging and adjusting plates cooperate to change the coating width of the coating head;

[0013] The adjusting mechanism is arranged on the workbench. The adjusting mechanism includes an equidistant driving assembly and a bidirectional transmission assembly which are linked. The equidistant driving assembly can drive multiple coating heads to move closer to or away from each other, and keep the distance between adjacent two coating heads the same. The bidirectional transmission assembly can drive the two plugging and adjusting plates to move closer to or away from each other when the coating heads move closer to or away from each other;

[0014] The transmission mechanism is arranged on the connecting plate and connected to the outermost coating head. The transmission mechanism includes a follow-up component and a unidirectional transmission component. The unidirectional transmission component can drive the traction assembly to act when the connecting plate moves to the end of the stroke. The follow-up component can adjust the amplitude of the unidirectional transmission component driving the traction assembly to act according to the position of the outermost coating head.

[0015] As a further scheme of the present invention: the equidistant driving assembly includes electric push rods symmetrically installed on the connecting plate. A transverse shaft is fixedly installed on the action end of the electric push rod. Multiple sliding sleeves are slidably sleeved on the transverse shaft. Two connecting rods are rotatably installed on the sliding sleeve. The two connecting rods are respectively rotatably connected to adjacent two coating heads.

[0016] As a further scheme of the present invention: the bidirectional transmission assembly includes a plurality of sliding connectors slidably arranged on the transverse shaft. The sliding connectors are slidably connected to the guide rods fixed on the coating heads, and a driving frame is fixed on the sliding connectors;

[0017] Two driving grooves are symmetrically arranged on the driving frame. The second pulleys rotatably installed on the plugging and adjusting plates can roll in the driving grooves.

[0018] As a further scheme of the present invention: the power assembly includes two side plates symmetrically arranged on the workbench. A moving frame is slidably installed in the side plates. The moving frame penetrates through the side plates and is connected with a threaded sleeve plate. The threaded sleeve plate is threadedly connected to a lead screw rotatably installed on the side plates. The lead screw is connected to the output shaft of a driving device fixed on the side plates;

[0019] The power assembly further includes a lifting structure connecting the moving frame and the connecting plate.

[0020] As a further solution of the present invention: The lifting structure includes two vertical shafts symmetrically arranged on the moving frame, and the vertical shafts are slidably connected to both ends of the connecting plate;

[0021] The lifting structure further includes a guiding groove provided on the side plate, and a first pulley rotatably installed on the side of the connecting plate can roll in the guiding groove.

[0022] As a further solution of the present invention: The guiding groove includes a first horizontal groove body, a first inclined groove body, a second horizontal groove body, a second inclined groove body and a third horizontal groove body, and the first horizontal groove body, the first inclined groove body, the second horizontal groove body, the second inclined groove body and the third horizontal groove body are connected and smoothly transitioned.

[0023] As a further solution of the present invention: The follower assembly includes a horizontally arranged sleeve plate fixedly installed on the connecting plate, a telescopic rod is slidably installed in the horizontally arranged sleeve plate, a pulling rod is rotatably installed on the telescopic rod, and one end of the pulling rod away from the telescopic rod is rotatably connected to the coating head;

[0024] The pulling rod is connected to the one-way transmission assembly.

[0025] As a further solution of the present invention: The one-way transmission assembly includes a ratchet plate arranged along the length direction of the telescopic rod and two ratchets symmetrically arranged on the workbench, the rotating shaft of the ratchet is connected to a bevel gear set arranged on the workbench, and the bevel gear set is connected to one set of the traction assemblies through a belt;

[0026] The traction assembly includes two driving rollers that are in rolling contact with each other.

[0027] A method for coating an immunochromatographic test strip using the coating treatment device includes the following steps:

[0028] Step 1: Connect the connector connected to multiple coating heads to an external liquid pumping device through pipelines, and then sequentially bypass the immunochromatographic test strip around two sets of traction assemblies;

[0029] Step 2: Adjust the distance between two adjacent coating heads and the distance between two plugging adjusting plates according to the width of the C / T lines on the immunochromatographic test strip. Specifically, control the equal-distance driving assembly and the bidirectional transmission assembly to act synchronously, so that when the distance between two coating heads changes, the distance between two plugging adjusting plates changes, so that the width of the C / T lines on the same immunochromatographic test strip matches the spacing between the C / T lines;

[0030] Step 3: When the distance between two adjacent coating heads changes, the coating head located on the side will drive the one-way transmission assembly to act through the follower assembly, so as to change the amplitude of the one-way transmission assembly driving the traction assembly to act;

[0031] Step 4: Control the movement of the power assembly to drive multiple coating heads to move along the width direction of the immunochromatographic test strip for coating operations. When the multiple coating heads move to the end of the stroke, the one-way transmission assembly will drive the traction assembly to act, and then laterally shift the immunochromatographic test strip;

[0032] Step 5: The power assembly drives the multiple coating heads to move in the reverse direction, and repeats the above Step 4 to complete the coating.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] Through the provided adjusting mechanism, when adjusting the width of the C / T line, the distance between adjacent two coating heads will also change accordingly, so that the width of the C / T line automatically matches the distance between adjacent two C / T lines, avoiding a large amount of blank areas on the test strip due to different widths of the C / T lines while the length of a single test strip remains unchanged, or the length of a single test strip is insufficient, reducing the increase in production costs caused by secondary processing. At the same time, after adjusting the width of the C / T line, the distance between adjacent two C / T lines is the same, which facilitates subsequent cutting operations, avoiding misalignment during the cutting process due to the unequal distribution of the C / T lines, resulting in the unusability of the cut immunochromatographic test strip, and improving the coating accuracy;

[0035] Through the provided power assembly, traction assembly and transmission mechanism, on the one hand, it ensures that when the connecting plate moves to the end of the stroke, the ratchet plate and the ratchet wheel can remain engaged, thereby driving the driving roller to rotate, and laterally pulling the immunochromatographic test strip. On the other hand, when the driving roller laterally pulls the immunochromatographic test strip, the coating head is in a separated state from the immunochromatographic test strip, avoiding the contamination of the immunochromatographic test strip by the solution in the coating head. At the same time, the lateral pulling distance of the driving roller for the immunochromatographic test strip can automatically match the width of the C / T line and the interval between the C / T lines, improving the speed when switching to produce immunochromatographic test strips of different specifications, reducing the preparation workload, improving the product accuracy, and reducing the production cost. Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of an embodiment of an immunochromatographic test strip coating processing device.

[0037] Figure 2 It is a schematic structural diagram of another angle in an embodiment of an immunochromatographic test strip coating processing device.

[0038] Figure 3 For Figure 2 The enlarged structural view of part A in

[0039] Figure 4Schematic plan view of the transmission mechanism in an embodiment of an immunochromatographic test strip coating treatment device.

[0040] Figure 5 Schematic structural view of the adjustment mechanism in an embodiment of an immunochromatographic test strip coating treatment device.

[0041] Figure 6 Schematic structural view of the adjustment mechanism from another angle in an embodiment of an immunochromatographic test strip coating treatment device.

[0042] Figure 7 Exploded view of the bidirectional transmission assembly in an embodiment of an immunochromatographic test strip coating treatment device.

[0043] Figure 8 Exploded view of the power assembly in an embodiment of an immunochromatographic test strip coating treatment device.

[0044] Figure 9 For Figure 8 Enlarged structural view at position B in

[0045] Figure 10 Schematic three-dimensional structural view of the transmission mechanism in an embodiment of an immunochromatographic test strip coating treatment device.

[0046] In the figure: 1, workbench; 2, side plate; 201, first horizontal trough; 202, first inclined trough; 203, second horizontal trough; 204, second inclined trough; 205, third horizontal trough; 3, driving device; 4, lead screw; 5, threaded sleeve plate; 6, moving frame; 7, vertical shaft; 8, connecting plate; 801, sliding groove; 9, first pulley; 10, coating head; 11, connecting head; 12, electric push-pull rod; 13, horizontal shaft; 14, sliding sleeve; 15, connecting rod; 16, sliding connecting piece; 17, guide rod; 18, driving frame; 1801, driving trough; 19, plugging and adjusting plate; 20, second pulley; 21, horizontally arranged sleeve plate; 22, pulling rod; 23, telescopic rod; 24, ratchet plate; 25, ratchet; 26, bevel gear set; 27, belt; 28, driving roller. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0048] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0049] See also Figures 1 to 10 In an embodiment of the present invention, an immunochromatographic test paper coating processing device includes: a workbench 1, a power component, a traction component, a blocking adjustment plate 19, an adjustment mechanism and a transmission mechanism, which is used to coat the immunochromatographic test paper, so that when the width of the C / T line is adjusted, the spacing between two adjacent coating heads 10 will also change accordingly, and the width of the C / T line is automatically matched with the spacing between two adjacent C / T lines, so as to avoid the length of a single test paper remaining unchanged due to the different widths of the C / T lines, resulting in a large number of blank areas on the test paper or insufficient length of a single test paper, thereby reducing the increase in production costs caused by secondary processing. At the same time, the distance that the driving roller 28 pulls the immunochromatographic test paper horizontally can automatically match the width of the C / T line and the spacing between the C / T lines, thereby improving the speed of switching to produce immunochromatographic test papers of different specifications, reducing the workload of preparation, and improving product accuracy.

[0050] The details are as follows: a connecting plate 8 is provided on the workbench 1, and a slide groove 801 is provided along the length direction of the connecting plate 8, and a plurality of groups of quilt wrapping heads 10 are equidistantly arranged in the slide groove 801;

[0051] A blocking adjustment plate 19 is symmetrically slidably mounted on the bottom of the blanket wrapping head 10. The two sets of blocking adjustment plates 19 cooperate to change the blanket wrapping width of the blanket wrapping head 10.

[0052] The adjustment mechanism is arranged on the workbench 1, and the adjustment mechanism includes an equidistant drive component and a bidirectional transmission component which are arranged in linkage. The equidistant drive component can drive multiple groups of the packing heads 10 to move closer to or away from each other, and keep the distance between two adjacent packing heads 10 the same. The bidirectional transmission component can drive the two groups of the blocking adjustment plates 19 to move closer to or away from each other when the packing heads 10 move closer to or away from each other.

[0053] The equidistant drive assembly includes an electric push-pull rod 12 symmetrically mounted on the connecting plate 8, a transverse shaft 13 is fixedly mounted on the action end of the electric push-pull rod 12, a plurality of sliding sleeves 14 are slidably sleeved on the transverse shaft 13, two connecting rods 15 are rotatably mounted on the sliding sleeve 14, and the two connecting rods 15 are rotatably connected to two adjacent quilt heads 10 respectively;

[0054] The bidirectional transmission assembly includes a plurality of sliding connectors 16 slidably arranged on the horizontal shaft 13. The sliding connectors 16 are slidably connected to a guide rod 17 fixed on the coating head 10, and a driving frame 18 is fixed on the sliding connectors 16.

[0055] Two driving grooves 1801 are symmetrically arranged on the driving frame 18. A second pulley 20 rotatably installed on the plugging and adjusting plate 19 can roll in the driving grooves 1801.

[0056] During use, the operator can adjust the width of a single C / T line and the interval between two adjacent C / T lines according to different specifications of the non-invasive chromatographic test strip. The specific process is as follows:

[0057] When the width of the C / T to be coated is relatively narrow, the operating end of the electric push rod 12 is controlled to move outwards. At this time, both ends of the horizontal shaft 13 will be pushed outwards at equal distances. Among them, the number of the above-mentioned coating heads 10 is odd, and the coating head 10 in the middle is in a state of being fixedly connected to the connecting plate 8, and the coating heads 10 on both sides of this coating head 10 are in a state of being slidably connected to the connecting plate 8. When both ends of the horizontal shaft 13 are pushed outwards at equal distances (the horizontal shaft 13 moves away from the coating head 10), the sliding sleeve 14 connected to the fixed coating head 10 in the middle will move along the length direction of the horizontal shaft 13 towards this fixed coating head 10 under the traction of the connecting rod 15. And this sliding sleeve 14 is connected to another slidably arranged coating head 10 adjacent to this fixed coating head 10 through another connecting rod 15. And the horizontal shaft 13 is always in a state parallel to the chute 801, so that the included angles between the two connecting rods 15 connected to this sliding sleeve 14 and the central axis of this sliding sleeve 14 are the same. Furthermore, when the horizontal shaft 13 moves horizontally, the slidably arranged coating head 10 adjacent to the fixed coating head 10 will move along the length direction of the chute 801 towards this fixed coating head 10. And when this slidably arranged coating head 10 moves, it will drive another slidably arranged coating head 10 to move through another connecting rod 15 connected to it, and so on. After the adjustment is completed and the position of the horizontal shaft 13 is fixed, the distance between a certain coating head 10 and the two adjacent coating heads 10 is the same, so that the distance between two adjacent coating heads 10 is the same. No matter whether the width of the C / T line of the immunochromatographic test strip increases or decreases within a certain range, it can ensure that the C / T line spacing coated on the immunochromatographic test strip is the same, which is convenient for subsequent cutting work, avoids the dislocation phenomenon during the cutting process due to the unequal distribution of the C / T lines, resulting in the unusability of the cut immunochromatographic test strip, improves the coating accuracy, and reduces the cost waste caused by the unequal distribution of the C / T lines.

[0058] Exemplarily, in the initial state, the distance between two adjacent coating heads 10 is 10 cm. When the horizontal axis 13 moves to drive the sliding coating head 10 to move, the coating head 10 adjacent to the fixedly arranged coating head 10 moves 2 cm. Then, the sliding coating heads 10 on one side of the fixedly arranged coating head 10 will move 2 cm, 4 cm, 6 cm... in sequence, so that the distance between two adjacent coating heads 10 remains at 8 cm.

[0059] Furthermore, since the guide rod 17 is fixed on the corresponding coating head 10, when the coating head 10 moves, the guide rod 17 will move accordingly, thereby driving the sliding connector 16 to move horizontally on the horizontal axis 13. When the horizontal axis 13 moves outwards, on the one hand, the sliding connector 16 will slide on the horizontal axis 13, and on the other hand, the sliding connector 16 will move along the length direction of the guide rod 17 following the horizontal axis 13 and drive the driving frame 18 to move along the length direction of the guide rod 17. The second pulley 20 on the plugging and adjusting plate 19 is rotatably arranged in the driving groove 1801 on the driving frame 18. When the sliding connector 16 moves away from the coating head 10 along the length direction of the guide rod 17 following the horizontal axis 13, the two plugging and adjusting plates 19 arranged on the same coating head 10 will move closer to each other, reducing the width of the conduction port at the lower end of the coating head 10, so as to reduce the width of the C / T line of the coating, and automatically match the width of the C / T line with the gap between the C / T lines. That is, when the width of the C / T line is smaller, the interval between the C / T lines is smaller, and vice versa.

[0060] Among them, the above-mentioned electric push-pull rod 12 can also be equivalently replaced by a hydraulic cylinder or a pneumatic cylinder. This application does not make specific limitations on this. When producing this device, it can be preferentially selected according to the customer's needs or based on cost considerations under the premise of meeting the driving conditions.

[0061] Through the above settings, when adjusting the width of the C / T line, the distance between two adjacent coating heads 10 will also change accordingly, so that the width of the C / T line is automatically matched with the distance between two adjacent C / T lines, avoiding a large amount of blank areas on the test paper or the insufficient length of a single test paper due to the different widths of the C / T lines while the length of a single test paper remains unchanged, reducing the increase in production costs caused by secondary processing. At the same time, after adjusting the width of the C / T line, the distance between two adjacent C / T lines is the same, which is convenient for subsequent cutting operations, avoiding misalignment during the cutting process due to the unequal distribution of the C / T lines, resulting in the unusability of the cut immunochromatographic test strip, and improving the coating accuracy.

[0062] Please refer to Figures 1 to 4 、 Figure 6 、 Figures 8 to 10, the power assembly is arranged on the workbench 1 and connected to the connecting plate 8. The power assembly can drive the connecting plate 8 to move along the length direction of the workbench 1. The power assembly includes two side plates 2 symmetrically arranged on the workbench 1. A moving frame 6 is slidably installed in the side plate 2. The moving frame 6 penetrates through the side plate 2 and is connected with a threaded sleeve plate 5. The threaded sleeve plate 5 is in threaded connection with a lead screw 4 rotatably installed on the side plate 2. The lead screw 4 is connected to the output shaft of a driving device 3 fixed on the side plate 2;

[0063] The power assembly further includes a lifting structure connecting the moving frame 6 and the connecting plate 8. The lifting structure includes two vertical shafts 7 symmetrically arranged on the moving frame 6. The vertical shafts 7 are slidably connected to the two ends of the connecting plate 8;

[0064] The lifting structure further includes a guiding groove arranged on the side plate 2. A first pulley 9 rotatably installed on the side of the connecting plate 8 can roll in the guiding groove. The guiding groove includes a first horizontal groove body 201, a first inclined groove body 202, a second horizontal groove body 203, a second inclined groove body 204 and a third horizontal groove body 205. The first horizontal groove body 201, the first inclined groove body 202, the second horizontal groove body 203, the second inclined groove body 204 and the third horizontal groove body 205 are communicated and smoothly transitioned;

[0065] Two sets of traction components are arranged and symmetrically installed on the workbench 1. The traction components are used for pulling the immunochromatographic test strip. The traction components include two driving roller wheels 28 that are in rolling contact;

[0066] The transmission mechanism is arranged on the connecting plate 8 and connected to the outermost coating head 10. The transmission mechanism includes a follow-up component and a one-way transmission component. The one-way transmission component can drive the traction component to act when the connecting plate 8 moves to the end of the stroke. The follow-up component can adjust the amplitude of the one-way transmission component driving the traction component according to the position of the outermost coating head 10;

[0067] The follow-up component includes a horizontally arranged sleeve plate 21 fixedly installed on the connecting plate 8. A telescopic rod 23 is slidably installed in the horizontally arranged sleeve plate 21. A pull rod 22 is rotatably installed on the telescopic rod 23. One end of the pull rod 22 away from the telescopic rod 23 is rotatably connected to the coating head 10;

[0068] The pull rod 22 is connected to the one-way transmission assembly. The one-way transmission assembly includes a ratchet plate 24 arranged along the length direction of the telescopic rod 23 and two ratchets 25 symmetrically arranged on the workbench 1. The rotating shaft of the ratchet 25 is connected to a bevel gear set 26 arranged on the workbench 1. The bevel gear set 26 is connected to a driving roller 28 on one set of the traction assemblies through a belt 27.

[0069] The bevel gear set 26 includes a first bevel gear and a second bevel gear arranged on the workbench 1 and meshing with each other. The first bevel gear is coaxially and fixedly connected to the ratchet 25, and the second bevel gear is connected to the belt 27.

[0070] During use, when the driving device 3 works, it can drive the lead screw 4 connected to the output shaft of the driving device 3 to rotate. The threaded sleeve plate 5 is in a threaded connection with the lead screw 4. When the lead screw 4 rotates, the threaded sleeve plate 5 will move along the length direction of the lead screw 4 and drive the moving frame 6 to move along the length direction of the side plate 2. In the initial state, the first pulley 9 on the side of the connecting plate 8 is located at one end of the third horizontal groove body 205 away from the second inclined groove body 204. At this time, when the connecting plate 8 moves to drive the ratchet plate 24 to move, the ratchets on the ratchet plate 24 will not mesh with the ratchet 25, and the driving roller 28 on the traction assembly will be in a stationary state. Since the connecting plate 8 is slidably connected to the vertical shaft 7 arranged on the moving frame 6, when the moving frame 6 moves, it will drive the connecting plate 8 to move horizontally. At this time, the first pulley 9 will move along the length direction of the third horizontal groove body 205. When the first pulley 9 moves into the second inclined groove body 204, the connecting plate 8 will drive the coating head 10 to move towards the immunochromatographic test strip. When the first pulley 9 moves to the second horizontal groove body 203, the bottom of the coating head 10 just fits the immunochromatographic test strip. During the process of the first pulley 9 rolling in the second horizontal groove body 203, the coating head 10 will perform the coating operation of the C / T line on the immunochromatographic test strip. As the first pulley 9 moves, the first pulley 9 will move onto the first inclined groove body 202, causing the coating head 10 to move away from the immunochromatographic test strip. When the first pulley 9 moves into the first horizontal groove body 201, the ratchet plate 24 will be located above the ratchet 25. During the continuous rolling of the first pulley 9 in the first horizontal groove body 201, the ratchets on the ratchet plate 24 will mesh with the ratchet 25, thereby driving the driving roller 28 to rotate, and the immunochromatographic test strip will be transversely pulled. At this time, since the coating head 10 is in a state of being separated from the immunochromatographic test strip, it is avoided that the solution on the coating head 10 contaminates the immunochromatographic test strip when the immunochromatographic test strip is transversely pulled. When the driving device 3 moves in the reverse direction, the connecting plate 8 will move in the reverse direction and repeat the above steps.

[0071] Among them, through the provided first horizontal trough 201, first inclined trough 202, second horizontal trough 203, second inclined trough 204, and third horizontal trough 205, on the one hand, it ensures that when the connecting plate 8 moves to the end of the stroke, the ratchet plate 24 can maintain the meshing state with the ratchet wheel 25, thereby driving the driving roller 28 to rotate, and enabling the immunochromatographic test strip to be horizontally pulled. On the other hand, when the driving roller 28 horizontally pulls the immunochromatographic test strip, the coating head 10 is in a separated state from the immunochromatographic test strip, thus avoiding the solution in the coating head 10 from contaminating the immunochromatographic test strip.

[0072] Specifically, when the immunochromatographic test strip is not coated, it is in a rolled state. When the coating head 10 operates, it will move along the width direction of the immunochromatographic test strip. When the driving roller 28 drives the immunochromatographic test strip to move, the immunochromatographic test strip is pulled along its length direction.

[0073] After the width of the C / T line and the interval between the C / T lines are adjusted, the coating head 10 located on the side will also move a predetermined displacement. At this time, the coating head 10 will drive the telescopic rod 23 to move through the pull rod 22. Specifically, when the distance between two adjacent coating heads 10 decreases, the coating head 10 located on the outside will drive the telescopic rod 23 to move towards the inside of the horizontally arranged sleeve plate 21 through the pull rod 22. When the connecting plate 8 moves to the end of the stroke, the number of ratchets on the ratchet plate 24 meshing with the ratchet wheel 25 will decrease. At this time, the number of turns of the ratchet wheel 25 will also decrease, and the displacement of the driving roller 28 pulling the immunochromatographic test strip horizontally will also decrease, so as to match the width of the C / T line and the interval between the C / T lines. Further, the smaller the interval between the C / T lines, the smaller the total width of the C / T line area left on the immunochromatographic test strip by one movement of the connecting plate 8. At this time, the pulling distance for the immunochromatographic test strip is also smaller. When the connecting plate 8 reciprocates, it can coat more uniform C / T lines on the immunochromatographic test strip, reducing the loss of the immunochromatographic test strip.

[0074] Through the above settings, on the one hand, it ensures that when the connecting plate 8 moves to the end of the stroke, the ratchet plate 24 can maintain the meshing state with the ratchet wheel 25, thereby driving the driving roller 28 to rotate, and enabling the immunochromatographic test strip to be horizontally pulled. On the other hand, when the driving roller 28 horizontally pulls the immunochromatographic test strip, the coating head 10 is in a separated state from the immunochromatographic test strip, thus avoiding the solution in the coating head 10 from contaminating the immunochromatographic test strip. At the same time, the horizontal pulling distance of the driving roller 28 for the immunochromatographic test strip can automatically match the width of the C / T line and the interval between the C / T lines, improving the speed when switching to produce immunochromatographic test strips of different specifications, reducing the preparation workload, improving product precision, and reducing production costs.

[0075] As an embodiment of the present invention, a method for coating an immunochromatographic test strip using the coating processing device is also proposed, including the following steps:

[0076] Step 1: Connect the connector 11 connected to multiple coating heads 10 to an external liquid pumping device through pipelines, and then pass the immunochromatographic test strip around two sets of traction components in sequence;

[0077] Step 2: Adjust the distance between two adjacent coating heads 10 and the distance between two plugging adjustment plates 19 according to the width of the C / T lines on the immunochromatographic test strip. Specifically, control the equal-distance driving component and the bidirectional transmission component to act synchronously, so that when the distance between two coating heads 10 changes, the distance between two plugging adjustment plates 19 changes, so that the width of the C / T lines on the same immunochromatographic test strip matches the spacing between the C / T lines;

[0078] Step 3: When the distance between two adjacent coating heads 10 changes, the coating head 10 located on the side will drive the unidirectional transmission component to act through the follower component, so as to change the amplitude of the unidirectional transmission component driving the traction component to act;

[0079] Step 4: Control the power component to act, drive multiple coating heads 10 to move in the width direction of the immunochromatographic test strip for coating operations, and when multiple coating heads 10 move to the end of the stroke, the unidirectional transmission component will drive the traction component to act, and traction the immunochromatographic test strip to move horizontally;

[0080] Step 5: The power component drives multiple coating heads 10 to move in the reverse direction, and repeat the above Step 4 to complete the coating.

[0081] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0082] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An immunochromatographic test paper coating processing device, comprising: A workbench is provided with a connecting plate, a slide groove is provided along the length direction of the connecting plate, and a plurality of groups of blanket wrapping heads are arranged in the slide groove at equal intervals; A power assembly is arranged on the workbench and connected to the connecting plate, and the power assembly can drive the connecting plate to move along the length direction of the workbench; A traction assembly, which is provided with two groups and symmetrically installed on the workbench, and is used to pull the immunochromatographic test paper; It is characterized by further comprising: The blocking adjustment plates are symmetrically slidably installed at the bottom of the quilt wrapping head. The two sets of blocking adjustment plates cooperate to change the quilt wrapping width of the quilt wrapping head. The adjusting mechanism is arranged on the workbench, and the adjusting mechanism includes an equidistant driving component and a bidirectional transmission component which are arranged in linkage. The equidistant driving component can drive multiple groups of blanket wrapping heads to move closer to or away from each other, and keep the distance between two adjacent blanket wrapping heads the same. The bidirectional transmission component can drive two groups of blocking adjustment plates to move closer to or away from each other when the blanket wrapping heads move closer to or away from each other. The transmission mechanism is arranged on the connecting plate and connected to the outermost blanket head. The transmission mechanism includes a follower assembly and a one-way transmission assembly. The one-way transmission assembly can drive the traction assembly to move when the connecting plate moves to the end of the stroke. The follower assembly can adjust the amplitude of the one-way transmission assembly driving the traction assembly to move according to the position of the outermost blanket head. The equidistant drive assembly includes an electric push-pull rod symmetrically mounted on the connecting plate, a horizontal axis is fixedly mounted on the action end of the electric push-pull rod, a plurality of sliding sleeves are slidingly sleeved on the horizontal axis, two connecting rods are rotatably mounted on the sliding sleeve, and the two connecting rods are rotatably connected to two adjacent quilting heads respectively; The bidirectional transmission assembly includes a plurality of sliding connectors slidably arranged on the transverse axis, the sliding connectors are slidably connected to the guide rods fixed on the quilt head, and a driving frame is fixed on the sliding connectors; two driving grooves are symmetrically arranged on the driving frame, and the second pulley rotatably installed on the blocking adjustment plate can roll in the driving groove; The power assembly includes two side plates symmetrically arranged on the workbench, a moving frame is slidably installed in the side plates, the moving frame passes through the side plates and is connected with a threaded sleeve plate, the threaded sleeve plate is threadedly connected to a screw rod rotatably installed on the side plates, and the screw rod is connected to an output shaft of a driving device fixed on the side plates; the power assembly also includes a lifting structure connecting the moving frame and the connecting plate; The follower assembly includes a transverse sleeve fixedly mounted on the connecting plate, a telescopic rod is slidably mounted in the transverse sleeve, a pulling rod is rotatably mounted on the telescopic rod, and one end of the pulling rod away from the telescopic rod is rotatably connected to the quilt head; the pulling rod is connected to the one-way transmission assembly; The one-way transmission assembly includes a ratchet plate arranged along the length direction of the telescopic rod and two ratchets symmetrically arranged on the workbench. The rotating shaft of the ratchet is connected to a bevel gear set arranged on the workbench, and the bevel gear set is connected to one of the traction assemblies through a belt; the traction assembly includes two driving rollers that are rolled and fitted.

2. The immunochromatographic test strip coating treatment device according to claim 1, wherein The lifting structure comprises two vertical shafts symmetrically arranged on the moving frame, and the vertical shafts are slidably connected to the two ends of the connecting plate; The lifting structure further includes a guiding groove provided on the side plate, and a first pulley rotatably installed on the side of the connecting plate can roll in the guiding groove.

3. The immunochromatographic test strip coating treatment device according to claim 2, wherein, The guiding groove includes a first horizontal groove body, a first inclined groove body, a second horizontal groove body, a second inclined groove body and a third horizontal groove body. The first horizontal groove body, the first inclined groove body, the second horizontal groove body, the second inclined groove body and the third horizontal groove body are connected and smoothly transitioned.

4. A method for coating an immunochromatographic test strip using the coating treatment device as described in claim 1, characterized in that, It includes the following steps: Step 1: Connect the connector connected to multiple coating heads to an external liquid pumping device through pipelines, and then bypass the immunochromatographic test strip around two sets of traction components in sequence; Step 2: Adjust the distance between adjacent two coating heads and the distance between two blocking and adjusting plates according to the width of the C / T lines on the immunochromatographic test strip. Specifically, control the equidistant driving component and the bidirectional transmission component to act synchronously, so that when the distance between two coating heads changes, the distance between two blocking and adjusting plates changes, so that the width of the C / T lines on the same immunochromatographic test strip matches the spacing between the C / T lines; Step 3: When the distance between adjacent two coating heads changes, the coating head located on the side will drive the unidirectional transmission component to act through the follower component, so as to change the amplitude of the unidirectional transmission component driving the traction component to act; Step 4: Control the power component to act, drive multiple coating heads to move in the width direction of the immunochromatographic test strip for coating operation, and when multiple coating heads move to the end of the stroke, the unidirectional transmission component will drive the traction component to act, and traction the immunochromatographic test strip to move horizontally; Step 5: The power component drives multiple coating heads to move in the reverse direction, and repeat the above Step 4 to complete the coating.

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