A test strip cutting and feeding device

Abstract

A test strip cutting and feeding device includes a large board bin, a board taking mechanism, a board feeding mechanism, a strip cutting mechanism, a strip receiving mechanism, a vision inspection mechanism, a single-row strip grasping mechanism, and a test strip conveying station belt. The board taking mechanism transfers the large test paper board from the large board bin to the board feeding mechanism. The board feeding mechanism continuously pushes the large test paper board to the strip cutting mechanism for strip cutting. The strip receiving mechanism includes a strip receiving linear movement module, a moving frame, a strip receiving lifting movement module, and a positioning module. The positioning module is a rotatable grooved wheel. The strip receiving mechanism can receive and reject the cut single test strips and convey the single test strips to the single-row strip grasping mechanism. The single-row strip grasping mechanism transports the test strips one by one to the test strip conveying station belt. The present invention can realize the full automation of the whole process from the feeding, strip cutting, rejection, and regular arrangement and conveying of the large test paper board. The structures of each module can enable the smooth docking and positioning of each process, and each process can be carried out simultaneously without interference, greatly improving the packaging efficiency and the finished product rate.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and in particular to a detecting test strip cutting and feeding device. Background Art

[0002] pH test strips, HCG test strips, HIV test strips, HPV test strips, nucleic acid test strips, etc. are generally cut from large cardboard sheets into slender strips, and then packaged in aluminum foil packaging bags, or assembled in plastic rods or plastic shells, with the detection part of the test strip exposed in the detection window of the plastic rod or plastic shell. With the increasing automation of the manufacturing industry, a series of equipment is required to automate functions such as large board picking, board feeding, strip cutting, and test strip positioning, including equipment that plays a connecting and transfer role between various functional modules. At the same time, in order to improve the efficiency and effectiveness of these automated processes, the positioning of various raw materials, intermediates, and finished products on each functional module and on the transfer module is also particularly important, which has an important impact on the production efficiency and yield of the product. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned drawbacks of the prior art and provide a detecting test strip cutting and feeding device that can achieve full-process automation, has high packaging efficiency and yield, and allows smooth positioning and docking of each functional module.

[0004] The present invention is realized through the following technical solutions:

[0005] A detecting test strip cutting and feeding device includes a large board bin, a board picking mechanism, a board feeding mechanism, a strip cutting mechanism, a strip receiving mechanism, a single-row strip grasping mechanism, and a test strip conveying station belt. The large board bin is used to store the large test paper boards to be cut into test strips. The board picking mechanism is used to pick the large test paper boards from the large board bin to the board feeding mechanism. The board feeding mechanism is docked with the strip cutting mechanism and is used to continuously push the large test paper boards to the strip cutting mechanism for strip cutting, and the pushing distance each time is the width of one test strip. The strip receiving mechanism is respectively docked with the strip cutting mechanism and the single-row strip grasping mechanism, and is used to receive the single test strips cut by the strip cutting mechanism and convey the single test strips to the single-row strip grasping mechanism, operating one test strip at a time. The single-row strip grasping mechanism is used to transport the test strips on the strip receiving mechanism one by one to the test strip conveying station belt. A plurality of test strip positioning molds are evenly spaced on the test strip conveying station belt, and the test strips are positioned and conveyed in the test strip positioning molds, with one test strip corresponding to one test strip positioning mold.

[0006] Furthermore, the strip connecting mechanism includes a strip connecting linear moving module, a moving frame, a strip connecting lifting moving module and a positioning module. The moving frame is installed on the strip connecting linear moving module. A fixing component for receiving and fixing the test strip is provided at the front end of the moving frame. During the cutting and transportation of the test strip, the two ends of the test strip are fixed on the fixing component and fixedly positioned on the moving frame, and the middle part of the test strip is suspended on the fixing component. The moving frame is driven by the strip connecting linear moving module to be connected to the strip cutting mechanism, and the front end of the test paper plate with a width of one test paper strip falls into and is fixed on the fixing component. After the test paper strip is cut into test strips by the cutting mechanism, the moving frame is driven by the strip connecting linear moving module to be connected to the strip cutting mechanism.

[0007] The positioning module is installed on the strip connecting lifting and moving module and is located below the moving frame. The positioning module is provided with a first positioning groove adapted to the width of the test strip. The extension direction of the first positioning groove is parallel to the test strip on the moving frame. After the fixing assembly releases the two ends of the test strip, the positioning module rises under the drive of the strip connecting lifting and moving module. The test strip falls into the first positioning groove and separates from the moving frame as the positioning module rises, so as to be grasped by the single-row grasping mechanism.

[0008] Furthermore, the positioning module is a groove wheel, and the strip connecting mechanism also includes a groove wheel servo motor arranged on the strip connecting lifting and moving module, and the groove wheel servo motor is connected to the groove wheel driving, and a plurality of the first positioning grooves are evenly distributed on the outer peripheral surface of the groove wheel and the extension direction of the first positioning groove is parallel to the axis of the groove wheel. After the test strip on the movable rack falls into the first positioning groove at the top of the groove wheel, when it is unqualified, the groove wheel rotates under the drive of the groove wheel servo motor to remove the unqualified test strip in the first positioning groove at the top of the groove wheel.

[0009] Furthermore, the strip connecting mechanism also includes a baffle fixedly arranged on the strip connecting lifting and moving module, the two baffles are located on one side of the groove wheel, and the two baffles are relatively arranged at the two ends of the outer circumference of the groove wheel, the first positioning groove on the groove wheel is located between the two baffles, and an arc-shaped baffle matching the edge shape of the groove wheel is arranged on the baffle at a position opposite to the groove wheel, and there is a clamping gap between the arc-shaped baffle and the outer circumference of the groove wheel that is compatible with the thickness of the test strip.

[0010] The length of the first positioning groove is smaller than the test strip and its two ends are open, so that the two ends of the test strip extend out of the first positioning groove. Before starting the machine, qualified test strips are pre-stored in the first positioning groove on one side of the groove wheel fixed with a baffle. The two ends of the test strip are stuck in the engaging gap to prevent the test strip from falling from the first positioning groove. The test strip is used for top filling when unqualified test strips are rejected. When rejecting, the groove wheel rotates to the other side.

[0011] Before starting up, several first positioning grooves on the side of the sprocket wheel with a baffle fixed thereto pre-store qualified test strips. Due to the effect of the arc-shaped baffle strip, even if the sprocket wheel rotates, the test strips will not fall off. When it is detected that the test strip in the first positioning groove at the top of the sprocket wheel is unqualified, the sprocket wheel rotates towards the side without a baffle, and the unqualified test strip drops off as it rotates and is removed. The qualified test strips pre-stored in the first positioning grooves on the side with the baffle fixed thereto rotate to the top surface for the single-column strip-gripping mechanism to grip the strips. In this way, the situation where the machine waits or the conveying station belt lacks materials due to the removal of test strips will not occur.

[0012] Further, the moving frame includes a moving frame provided at the front end. The moving frame has a hollow frame, and the hollow frame is adapted to the outer peripheral surface of the sprocket wheel, so that the sprocket wheel can be accommodated in the hollow frame. When the moving frame moves, there will be no interference between the sprocket wheel and the moving frame, thus not affecting the strip-gripping of the single-column strip-gripping mechanism and the removal of test strips. A notch allowing the sprocket wheel to pass through is provided at the front end of the hollow frame. The fixing assembly is located at the front end of the notch. The fixing assembly includes two oppositely arranged positioning edges and clamps. The two positioning edges are respectively arranged on both sides of the notch. The width of the positioning edge is adapted to the width of the test strip. The front end of the test strip large board with a width of one test strip abuts against the two positioning edges for positioning. The two clamps are respectively arranged at the positioning edges to fix the two ends of the test strip, so as to facilitate the strip cutting of the strip cutting mechanism and the movement of the test strip, and ensure that the test strip will not be displaced when the test strip is cut and moved. The clamp is a pneumatic gripper or a suction cup. For some wider test strips, a suction cup can be used. For some narrower ones that are not convenient to use a suction cup, a pneumatic gripper is used.

[0013] The moving frame moves under the drive of the strip-connecting linear movement module. The positioning edge is docked with the strip cutting mechanism. The test strip large board is pushed towards the positioning edge by a width of one test strip under the drive of the board feeding mechanism. The front end of the test strip large board just abuts against the positioning edge for positioning. The clamps on the positioning edge fix the two ends of the test strip. The strip cutting mechanism cuts the test strip into test strips. The moving frame moves under the drive of the strip-connecting linear movement module. When the test strip reaches the sprocket wheel, the sprocket wheel rises under the drive of the strip-connecting lifting movement module. The test strip falls into the first positioning groove at the top of the sprocket wheel. The clamp releases the test strip. The test strip rises with the sprocket wheel and disengages from the moving frame. The moving frame continues the above actions to continue docking with the strip cutting mechanism to connect the strips. If the test strip at the top of the sprocket wheel is detected as a qualified product, the single-column strip-gripping mechanism grips the test strip to the test strip conveying station belt for positioning and is conveyed to the next process by the test strip conveying station belt. If it is an unqualified product, the sprocket wheel rotates towards the side without a baffle for removal.

[0014] Further, the strip lifting and moving module includes a support frame, a strip servo motor, a lead screw nut assembly, a strip vertical slide rail, a strip slider, and a strip mounting bracket. The strip servo motor and the strip vertical slide rail are fixed on the support frame. The strip servo motor is drivingly connected to the lead screw in the lead screw nut assembly. The strip slider is fixedly connected to the nut in the lead screw nut assembly, and the strip slider is simultaneously arranged on the strip vertical slide rail. The strip mounting bracket includes a vertical support plate and a horizontal support plate. The vertical support plate is fixedly connected to the strip slider, and the horizontal support plate is fixed at the top of the vertical support plate. The positioning module is mounted on the horizontal support plate. The strip servo motor drives the strip mounting bracket and the positioning module thereon to move up and down along the direction of the strip vertical slide rail through the lead screw nut assembly.

[0015] Further, a vision detection mechanism is further included. The vision detection mechanism is arranged above the strip mechanism and is used to detect whether the test strip on the strip mechanism is qualified, so as to facilitate the rejection of unqualified test strips. The rejection of unqualified test strips can be performed by the single-column strip grasping mechanism or by the strip mechanism. In this embodiment, it is performed by the strip mechanism.

[0016] Further, the plate feeding mechanism includes a carrier plate table, a large plate positioning assembly, a plate feeding linear movement module, a plate feeding mounting bracket, and a large plate clamp. A fixing plate is arranged on one side of the carrier plate table. The large plate positioning assembly includes a positioning plate and a large plate positioning cylinder connected to the positioning plate. The positioning plate is arranged opposite to the fixing plate. The large test paper plate is placed between the positioning plate and the fixing plate. The large plate positioning cylinder drives the positioning plate to approach the fixing plate, and pushes one side edge of the large test paper plate to abut against the fixing plate for positioning. The moving direction of the plate feeding linear movement module is parallel to the length direction of the large test paper plate. The plate feeding mounting bracket is mounted on the plate feeding linear movement module, and the large plate clamp is mounted on the plate feeding mounting bracket. The large plate clamp is a pneumatic gripper. The pneumatic gripper clamps the upper and lower sides of the large test paper plate, and the pneumatic gripper drives the large test paper plate on the carrier plate table to move towards the strip cutting mechanism under the drive of the plate feeding linear movement module.

[0017] Further, the plate taking mechanism includes a plate taking linear movement module, a plate taking lifting and moving module, and a plate taking component. The plate taking component is used to clamp or suck the large test paper plate, and is a suction cup component or a gripper component. The plate taking component is mounted on the plate taking lifting and moving module, and the plate taking lifting and moving module is mounted on the plate taking linear movement module. The plate taking component moves the large test paper plate in the large plate bin to the plate feeding mechanism under the drive of the plate taking linear movement module and the plate taking lifting and moving module.

[0018] The strip cutting mechanism includes a fixed knife, a moving knife and a moving knife driving assembly. The moving knife is relatively arranged above the fixed knife. The moving knife driving assembly includes a cutting knife cylinder, a cutting knife slide rail, a cutting knife slider and a moving knife mounting plate. The cutting knife cylinder is connected to the moving knife mounting plate. The moving knife is mounted on the moving knife mounting plate. The cutting knife slide rail is arranged vertically. The cutting knife slider is arranged on the cutting knife slide rail and is simultaneously connected to the moving knife mounting plate. The cutting knife cylinder drives the moving knife mounting plate to move up and down along the direction of the cutting knife slide rail, thereby driving the moving knife to approach or move away from the fixed knife.

[0019] Further, the single-row strip grasping mechanism includes a strip grasping linear movement module, a strip grasping lifting movement module and a test strip clamp. The test strip clamp is mounted on the strip grasping lifting movement module. The strip grasping lifting movement module is mounted on the strip grasping linear movement module. A plurality of relatively arranged grasping blocks are provided on the test strip clamp. A second positioning groove adapted to the width of the test strip is provided on the grasping block. A vacuum sucker for adsorbing the test strip is provided at the bottom of the second positioning groove. Different positions of the strip-shaped test strip are respectively adsorbed in the second positioning grooves of several grasping blocks through the vacuum sucker, which is convenient for positioning and then placing on the test strip conveying station belt.

[0020] By setting modules such as a large board storage bin, a board taking mechanism, a board feeding mechanism, a strip cutting mechanism, a vision inspection mechanism, a strip receiving mechanism, a single-row strip grasping mechanism and a test strip conveying station belt, the present invention realizes the full-process automation of the large board of test strips from feeding, strip cutting, rejection and regular arrangement and conveying, etc. The structures of the board feeding mechanism, the strip cutting mechanism and the strip receiving mechanism and their cooperation with each other can ensure that the large board does not move during strip cutting and the width of the test strip, thereby improving the yield. The setting of the strip receiving linear movement module, the moving frame, the strip receiving lifting movement module and the positioning module on the strip receiving mechanism, and setting the positioning module as a rotatable grooved wheel, with a plurality of positioning grooves for positioning the test strip provided on the grooved wheel, and a baffle provided beside the grooved wheel, can enable the grooved wheel to have the functions of both strip receiving positioning and rejecting unqualified products, and the rejection of unqualified products will not affect the normal strip grasping process, avoiding situations such as machine waiting and empty material on the conveying belt, which affect subsequent processes. Moreover, the strip receiving, material rejection and strip grasping processes can be carried out simultaneously without interfering with each other, greatly improving the packaging efficiency. The setting of the relevant positioning structures on the board feeding mechanism, the strip receiving mechanism, the single-row strip grasping mechanism and the test strip conveying station belt enables the large board and the test strip to be positioned and fixed during the transfer between various procedures, further improving the yield. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0022] Figure 2 It is a schematic structural diagram of another perspective of an embodiment of the present invention.

[0023] Figure 3Schematic side view of an embodiment of the present invention.

[0024] Figure 4 It is Figure 2 An enlarged view of the structure at position B in

[0025] Figure 5 Schematic view of the strip connecting mechanism in an embodiment of the present invention.

[0026] Figure 6 Partial schematic view of the strip connecting mechanism in an embodiment of the present invention.

[0027] Figure 7 Partial schematic view of the moving frame on the strip connecting mechanism in an embodiment of the present invention.

[0028] Figure 8 Another partial schematic view of the strip connecting mechanism in an embodiment of the present invention.

[0029] Figure 9 Schematic view of the sprocket on the strip connecting mechanism in an embodiment of the present invention.

[0030] Figure 10 It is Figure 8 Schematic side view of

[0031] Figure 11 Schematic view of the large sheet storage bin, sheet taking mechanism and sheet feeding mechanism in an embodiment of the present invention.

[0032] Figure 12 It is Figure 11 An enlarged view of the structure at position C in

[0033] Figure 13 Schematic view of the strip cutting mechanism and the strip connecting mechanism in an embodiment of the present invention.

[0034] Figure 14 It is Figure 1 An enlarged view of the structure at position A in

[0035] Reference Numerals: 1 - large board material bin; 2 - board feeding mechanism; 3 - board picking mechanism; 4 - strip cutting mechanism; 5 - strip receiving mechanism; 6 - vision inspection mechanism; 7 - single - row strip grasping mechanism; 8 - test strip conveying station belt; 9 - test strip lifting and transplanting mechanism; 10 - test strip; 11 - test strip large board; 51 - strip receiving lifting and moving module; 52 - grooved pulley; 53 - grooved pulley servo motor; 54 - baffle; 55 - strip receiving linear moving module; 56 - moving frame; 511 - support frame; 512 - strip receiving servo motor; 513 - lead screw nut assembly; 514 - strip receiving vertical slide rail; 515 - strip receiving slider; 516 - vertical support plate; 517 - horizontal support plate; 521 - first positioning groove; 541 - arc - shaped baffle strip; 561 - moving frame; 562 - hollow frame; 563 - notch; 564 - positioning edge; 565 - fixture; 21 - fixing plate; 22 - positioning plate; 23 - large board positioning cylinder; 24 - board feeding linear moving module; 25 - board feeding mounting frame; 26 - pneumatic gripper; 31 - board picking linear moving module; 32 - board picking lifting and moving module; 33 - board picking assembly; 41 - cutting knife cylinder; 42 - moving knife mounting plate; 43 - fixed knife; 44 - moving knife; 45 - cutting knife slider; 46 - cutting knife slide rail; 71 - test strip fixture; 72 - grasping block; 73 - second positioning groove; 81 - third positioning groove. Detailed Embodiment

[0036] A test strip cutting and feeding device, as Figures 1 to 3 , includes a large board material bin 1, a board picking mechanism 3, a board feeding mechanism 2, a strip cutting mechanism 4, a strip receiving mechanism 5, a single - row strip grasping mechanism 7, and a test strip conveying station belt 8. The large board material bin 1 is used for storing the test strip large board 11 to be cut into test strips. The board picking mechanism 3 is used to pick up the test strip large board 11 from the large board material bin 1 and move it to the board feeding mechanism 2. The board feeding mechanism 2 is docked with the strip cutting mechanism 4. The board feeding mechanism 2 is used to continuously push the test strip large board 11 to the strip cutting mechanism 4 for strip cutting, and the pushing distance each time is the width of one test strip. The strip receiving mechanism 5 is respectively docked with the strip cutting mechanism 4 and the single - row strip grasping mechanism 7, and is used to receive the single test strip cut by the strip cutting mechanism and convey the single test strip to the single - row strip grasping mechanism 7, operating one test strip at a time. The single - row strip grasping mechanism 7 is used to transport the test strips on the strip receiving mechanism 5 one by one to the test strip conveying station belt 8. A number of test strip positioning molds are evenly spaced on the test strip conveying station belt 8, and the test strips are positioned and conveyed in the test strip positioning molds, with one test strip corresponding to one test strip positioning mold. In this embodiment, as Figure 4 , the test strip positioning mold has a third positioning groove 81 adapted to the width of the test strip. The middle part of the test strip falls into the third positioning groove 81 for positioning and is conveyed by the test strip conveying station belt 8 to the next process. The two ends of the test strip extend out of the third positioning groove 81, facilitating the next process to perform corresponding operations on the test strip by acting on the two ends of the test strip.

[0037] In this embodiment, a visual inspection mechanism 6 is further included. The visual inspection mechanism 6 is arranged above the strip connecting mechanism 5 and is used to detect whether the test strips on the strip connecting mechanism 5 are qualified, so as to facilitate the rejection of unqualified test strips. The rejection of unqualified test strips can be performed by the single-column strip grasping mechanism 7, or by the strip connecting mechanism 5, or an independent rejection mechanism can be provided separately, such as in the form of blowing to reject. In this embodiment, it is performed by the strip connecting mechanism 5.

[0038] The main function of the strip connecting mechanism 5 is mainly for transfer, and the cut test strips are transferred between the strip cutting mechanism 4 and the single-column strip grasping mechanism 7. The structure or form of a movable test strip fixture 71 or a test strip conveyor belt can be adopted. As one of the implementation manners, such as Figures 5 to 10 , the strip connecting mechanism 5 includes a strip connecting linear movement module 55, a moving frame 56, a strip connecting lifting movement module 51 and a positioning module. The moving frame 56 is installed on the strip connecting linear movement module 55. A fixing component for receiving and fixing the test strip 10 is arranged at the front end of the moving frame 56. During the cutting and transportation of the test strip 10, the two ends of the test strip 10 are fixed on the fixing component, and thus the test strip 10 is fixed and positioned on the moving frame 56, and the middle part of the test strip 10 is suspended on the fixing component. The moving frame 56 is driven by the strip connecting linear movement module 55 to move to be docked with the strip cutting mechanism 4, and the front end of the test strip large board 11 with the width of one test strip falls into and is fixed on the fixing component. After the strip cutting mechanism 4 cuts the test strip, the moving frame 56 is driven by the strip connecting linear movement module 55 to move to be docked with the positioning module. The strip connecting linear movement module 55 can be an electric cylinder.

[0039] The positioning module is installed on the strip connecting lifting movement module 51 and is located below the moving frame 56. A first positioning groove 521 adapted to the width of the test strip 10 is arranged on the positioning module. The extending direction of the first positioning groove 521 is parallel to the test strip 10 on the moving frame 56. After the fixing component releases the two ends of the test strip 10, the positioning module rises under the drive of the strip connecting lifting movement module 51, and the test strip 10 falls into the first positioning groove 521 and is separated from the moving frame 56 as the positioning module rises, so as to be grasped by the single-column strip grasping mechanism 7.

[0040] In this embodiment, the strip lifting and moving module 51 includes a support frame 511, a strip servo motor 512, a lead screw nut assembly 513, a strip vertical slide rail 514, a strip slider 515 and a strip mounting bracket. The strip servo motor 512 and the strip vertical slide rail 514 are fixed on the support frame 511. The strip servo motor 512 is drivingly connected to the lead screw in the lead screw nut assembly 513. The strip slider 515 is fixedly connected to the nut in the lead screw nut assembly 513, and the strip slider 515 is simultaneously arranged on the strip vertical slide rail 514. The strip mounting bracket includes a vertical support plate 516 and a horizontal support plate 517. The vertical support plate 516 is fixedly connected to the strip slider 515, and the horizontal support plate 517 is fixed at the top of the vertical support plate 516. The positioning module is mounted on the horizontal support plate 517. The strip servo motor 512 drives the strip mounting bracket and the positioning module thereon to move up and down along the direction of the strip vertical slide rail 514 through the lead screw nut assembly 513.

[0041] The positioning module can be of any structure and shape with a first positioning groove 521 at the top. To enable the positioning module to have a rejection function at the same time, as one of the implementation manners, such as Figure 8 , Figure 9 , the positioning module is a grooved wheel 52. The strip mechanism 5 further includes a grooved wheel servo motor 53 arranged on the strip lifting and moving module 51. The grooved wheel servo motor 53 is fixed on the horizontal support plate 517. The grooved wheel servo motor 53 is drivingly connected to the grooved wheel 52. A plurality of the first positioning grooves 521 are evenly distributed on the outer peripheral surface of the grooved wheel 52, and the extending direction of the first positioning groove 521 is parallel to the axis of the grooved wheel 52. After the test strip 10 on the moving frame 56 falls into the first positioning groove 521 at the top of the grooved wheel 52, when it is a defective product, the grooved wheel 52 rotates under the drive of the grooved wheel servo motor 53 to reject the defective product.

[0042] To make the strip grasping action of the single-row strip grasping mechanism 7 coherent without pause, in this embodiment, the strip mechanism 5 further includes a baffle 54 fixedly arranged on the strip lifting and moving module 51. The baffle 54 is fixed on the horizontal support plate 517. The two baffles 54 are both located on one side of the grooved wheel 52, and the two baffles 54 are oppositely arranged at both ends of the outer peripheral surface of the grooved wheel 52. The first positioning groove 521 on the grooved wheel 52 is located between the two baffles 54. An arc-shaped baffle strip 541 adapted to the edge shape of the grooved wheel 52 is arranged at the position of the baffle 54 opposite to the grooved wheel 52. There is a clamping gap (such as Figure 10 ) adapted to the thickness of the test strip 10 between the arc-shaped baffle strip 541 and the outer peripheral surface of one end of the grooved wheel 52, and the grooved wheel 52 can rotate relative to the arc-shaped baffle strip 541.

[0043] The length of the first positioning groove 521 is less than that of the test strip 10 and both ends of the first positioning groove 521 are open, so that both ends of the test strip 10 extend out of the first positioning groove 521. Before starting the machine, qualified test strips 10 are pre-stored in the first positioning groove 521 on the side of the grooved wheel 52 where the baffle 54 is fixed. Both ends of the test strip 10 can just be stuck in the clamping gap so that the test strip 10 does not fall out of the first positioning groove 521. The test strip 10 is used for replenishing materials when the unqualified test strips at the top are removed, avoiding the lack of materials in the first positioning groove 521 at the top of the grooved wheel 52 when the grooved wheel 52 rotates and removes the strips, which may cause the single-row strip-gripping mechanism 7 to be unable to grip the strips normally and need to pause and wait, affecting the normal operation of the test-strip conveying station belt 8, and even causing the lack of materials in some test-strip positioning molds on the test-strip conveying station belt 8, thus causing a series of impacts on the downstream processes. When removing the strips, the grooved wheel 52 rotates towards the other side where the baffle 54 is not installed, and the unqualified test strips fall off and are removed from this side, and a receiving hopper can be arranged below.

[0044] In this embodiment, as Figure 8 , the first positioning groove 521 on the grooved wheel 52 protrudes from the outer peripheral surface of the grooved wheel 52, and the first positioning groove 521 is a discontinuous groove-shaped structure with a notch in the middle, which is convenient for the strip clamp 71 on the single-row strip-gripping mechanism 7 to act on the middle part of the test strip 10 from the notch position to grip the strip.

[0045] Before starting the machine, qualified test strips 10 are pre-stored in several first positioning grooves 521 on the side of the grooved wheel 52 where the baffle 54 is fixed. Both ends of the test strip 10 are located in the gap between the grooved wheel 52 and the arc-shaped baffle 541. Due to the action of the arc-shaped baffle 541, even if the grooved wheel 52 rotates, the test strip 10 will not fall off. When the vision detection mechanism 6 detects that the test strip 10 in the first positioning groove 521 at the top of the grooved wheel 52 is unqualified, the grooved wheel 52 rotates towards the side where the baffle 54 is not installed, and the unqualified test strip 10 falls off with the rotation and is removed. The qualified test strips 10 pre-stored in the first positioning groove 521 on the side where the baffle 54 is fixed rotate to the top surface for the single-row strip-gripping mechanism 7 to grip the strips, so that the situation that the single-row strip-gripping mechanism 7 waits and the test-strip conveying station belt 8 lacks materials due to the removal of the test strips will not occur. When the pre-stored test strips are almost used up, new qualified test strips can be filled into the first positioning groove 521 for pre-storage by increasing the speed of the test strip 10. The operating speeds of the strip cutting mechanism 4 and the strip receiving mechanism 5 are consistent, and the operating speeds of the single-row strip-gripping mechanism 7 and the test-strip conveying station belt 8 are consistent. By adjusting the operating speeds of the strip cutting mechanism 4 and the strip receiving mechanism 5 and the strip-gripping speed of the single-row strip-gripping mechanism 7, all the test-strip positioning molds on the test-strip conveying station belt 8 can be filled with test strips without lack of materials.

[0046] The function of the moving frame 56 is to fix and position the test strip and to dock and cooperate with the positioning module. To ensure that the movement of the moving frame 56 does not conflict with the strip-gripping of the single-row strip-gripping mechanism 7, in this embodiment, asFigure 6 , Figure 7 , the moving frame 56 includes a moving frame 561 provided at the front end. The moving frame 561 has a hollow frame 562 which is adapted to the outer peripheral surface of the grooved pulley 52, so that the grooved pulley 52 can be accommodated in the hollow frame 562 for movement. When the moving frame 56 moves, there will be no interference between the grooved pulley 52 and the moving frame 56, so that the movement of the moving frame 56, the strip grasping of the single-row strip grasping mechanism 7 and the rejection of the test strip can be carried out simultaneously. A notch 563 allowing the grooved pulley 52 to pass through is provided at the front end of the hollow frame 562. The fixing assembly is located at the front end of the notch 563. The fixing assembly includes two oppositely arranged positioning edges 564 and clamps 565. The two positioning edges 564 are respectively arranged on both sides of the notch 563. The width of the positioning edge 564 is adapted to the width of the test strip 10. The front end of the test strip large board 11 with a width of one test strip 10 abuts against the two positioning edges 564 for positioning. The two clamps 565 are respectively arranged on the positioning edges 564 to fix the two ends of the test strip 10, so as to facilitate the strip cutting of the strip cutting mechanism 4 and the movement of the test strip 10, and ensure that the test strip will not be displaced when the test strip is cut and moved. The clamp 565 is a pneumatic gripper 26 or a suction cup. For some wider test strips 10, a suction cup can be used. For some narrower ones that are not convenient to use a suction cup, a pneumatic gripper 26 is used.

[0047] The working process of the above-mentioned strip connecting mechanism 5 is as follows: The moving frame 56 moves to the strip cutting mechanism 4 under the drive of the strip connecting linear moving module 55. The positioning edge 564 is docked with the strip cutting mechanism 4. The test strip large board 11 is pushed by the board feeding mechanism 2 towards the positioning edge 564 by the width of one test strip. The front end of the test strip large board 11 just abuts against the positioning edge 564 for positioning. The clamps 565 on the positioning edge 564 fix the two ends of the test strip 10. The strip cutting mechanism 4 cuts the fixed part into the test strip 10. The moving frame 56 moves under the drive of the strip connecting linear moving module 55. When the test strip 10 reaches the grooved pulley 52, the grooved pulley 52 rises under the drive of the strip connecting lifting moving module 51. The test strip 10 falls into the first positioning groove 521 at the top of the grooved pulley 52. The clamp 565 releases the test strip 10. The test strip 10 rises with the grooved pulley 52 and disengages from the moving frame 56. The moving frame 56 continues the above actions to continue docking with the strip cutting mechanism 4 to connect strips. During the movement of the test strip 10 on the moving frame 56, the vision inspection mechanism 6 detects whether the width of the test strip 10 is qualified, whether there are spots, stains, etc., so as to judge whether it is qualified. If it is detected as a qualified product, the single-row strip grasping mechanism 7 grabs the test strip 10 at the top of the grooved pulley 52 to the test strip conveying station belt 8 for positioning and is conveyed by the test strip conveying station belt 8 to the next process. If it is an unqualified product, the grooved pulley 52 rotates towards the side without the baffle 54 to reject it. The qualified test strip 10 pre-stored in the first positioning groove 521 on the other side rotates to the top surface for the single-row strip grasping mechanism 7 to normally grasp the strip.

[0048] Limit plates or limit columns are provided around the large board storage bin 1, and the test paper large boards 11 are stacked in the large board storage bin 1. As one implementation, such as Figure 11 , the board taking mechanism 3 includes a board taking linear movement module 31, a board taking lifting movement module 32 and a board taking component 33. The board taking component 33 is used to clamp or suck the test paper large board 11, and can be a suction cup component or a clamping jaw component. In this embodiment, the form of using multiple suction cups to suck the test paper large board 11 is adopted. The board taking component 33 is installed on the board taking lifting movement module 32, and the board taking lifting movement module 32 is installed on the board taking linear movement module 31. The board taking component 33 moves the test paper large board 11 in the large board storage bin 1 to the board feeding mechanism 2 under the drive of the board taking linear movement module 31 and the board taking lifting movement module 32. The board taking linear movement module 31 and the board taking lifting movement module 32 can both be electric cylinders.

[0049] The board feeding mechanism 2 can adopt existing structures and forms. As one implementation, such as Figure 11 , Figure 12 , the mechanism 2 includes a carrier plate table, a large board positioning component, a board feeding linear movement module 24, a board feeding mounting frame 25 and a large board clamp 565. A fixing plate 21 is provided on one side of the carrier plate table. The large board positioning component includes a positioning plate 22 and a large board positioning cylinder 23 connected to the positioning plate 22. The positioning plate 22 is arranged opposite to the fixing plate 21. The test paper large board 11 is placed between the positioning plate 22 and the fixing plate 21. When the board taking mechanism 3 feeds the material, the large board positioning cylinder 23 drives the positioning plate 22 away from the fixing plate 21 to facilitate the board taking mechanism 3 to place the material. After the material placement is completed, the large board positioning cylinder 23 drives the positioning plate 22 to approach the fixing plate 21, and pushes one side edge of the test paper large board 11 to abut against the fixing plate 21 for positioning; the moving direction of the board feeding linear movement module 24 is parallel to the length direction of the test paper large board 11. The board feeding mounting frame 25 is installed on the board feeding linear movement module 24, and the large board clamp 565 is installed on the board feeding mounting frame 25. The large board clamp 565 is a pneumatic clamping jaw 26. The pneumatic clamping jaw 26 clamps the upper and lower sides of the test paper large board 11, and the pneumatic clamping jaw 26 drives the test paper large board 11 on the carrier plate table to move towards the strip cutting mechanism 4 under the drive of the board feeding linear movement module 24. In this embodiment, the board feeding linear movement module 24 is an electric cylinder, and the large board clamp 565 can also be in the form of a suction cup.

[0050] As one implementation, such as Figure 13, the structure 4 includes a fixed knife 43, a moving knife 44 and a driving assembly for the moving knife 44. The moving knife 44 is relatively arranged above the fixed knife 43. The driving assembly for the moving knife 44 includes a cutting knife cylinder 41, a cutting knife slide rail 46, a cutting knife slider 45 and a mounting plate 42 for the moving knife 44. The cutting knife cylinder 41 is connected to the mounting plate 42 for the moving knife 44. The moving knife 44 is mounted on the mounting plate 42 for the moving knife 44. The cutting knife slide rail 46 is arranged vertically. The cutting knife slider 45 is arranged on the cutting knife slide rail 46 and is simultaneously connected to the mounting plate 42 for the moving knife 44. The cutting knife cylinder 41 drives the mounting plate 42 for the moving knife 44 to move up and down along the direction of the cutting knife slide rail 46, so as to drive the moving knife 44 to approach or move away from the fixed knife 43.

[0051] The single-row strip grasping mechanism 7 grasps a single test strip 10. As one of the implementation manners, the single-row strip grasping mechanism 7 includes a strip grasping linear movement module, a strip grasping lifting movement module and a test strip clamp 71. The test strip clamp 71 is mounted on the strip grasping lifting movement module. The strip grasping lifting movement module is mounted on the strip grasping linear movement module. As Figure 14 , a plurality of relatively arranged grasping blocks 72 are arranged on the test strip clamp 71. A second positioning groove 73 adapted to the width of the test strip 10 is arranged on the grasping block 72. A vacuum sucker for adsorbing the test strip 10 is arranged at the bottom of the second positioning groove 73. Different positions of the strip-shaped test strip 10 are respectively adsorbed in the second positioning grooves 73 of several grasping blocks 72 through the vacuum sucker, which is convenient for placing on the test strip conveying station belt 8 after positioning. The strip grasping linear movement module can be an electric cylinder, and the strip grasping lifting movement module can be in the form of a cylinder.

[0052] In this embodiment, as Figure 1 , Figure 2, a set of large board material bins 1, a set of board picking mechanisms 3, and two sets of parallel board feeding mechanisms 2, two sets of strip cutting mechanisms 4, two sets of visual inspection mechanisms 6, two sets of strip connecting mechanisms 5, two sets of single-row strip grasping mechanisms 7, and two sets of test strip conveying station belts 8 are respectively provided. The strip grasping linear movement modules in the two sets of single-row strip grasping mechanisms 7 can share the same linear guide rail, but their respective linear drive components are independent. In this embodiment, test strip lifting and transplanting mechanisms 9 are respectively provided downstream of the two sets of test strip conveying station belts 8 for transferring the test strips 10 on the test strip conveying station belts 8 to the test strip assembly and packaging equipment for packaging and assembly in the next process. The test strip large boards 11 in the large board material bins 1 are picked up by the board picking mechanisms 3 and moved to the two board feeding mechanisms 2. The board feeding mechanisms 2 push the test strip large boards 11 by the width of one test strip. The strip connecting mechanisms 5 fix the width of the test strip. The strip cutting mechanisms 4 cut the strips. The strip connecting mechanisms 5 transfer the test strips to the single-row strip grasping mechanisms 7. During the transfer process, the visual inspection mechanisms 6 detect whether the test strips are qualified. If unqualified, they are removed by the strip connecting mechanisms 5. If qualified, they are transferred by the single-row strip grasping mechanisms 7 to the test strip conveying station belts 8 for positioning, arranging, and conveying. The test strip lifting and transplanting mechanisms 9 transplant multiple test strips on the test strip conveying station belts 8 at one time to the downstream test strip packaging and assembly equipment.

[0053] The above detailed description is for the specific description of the feasible embodiments of the present invention. This embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change without departing from the present invention should be included in the patent scope of this case.

Claims

1. A test strip cutting and feeding device, characterized in that, It comprises a large plate material bin, a plate taking mechanism, a plate delivery mechanism, a strip cutting mechanism, a strip connecting mechanism, a single-row strip grabbing mechanism and a test strip conveying station belt, wherein the large plate material bin is used to store large test paper plates to be cut into test strips, the plate taking mechanism is used to move the large test paper plates from the large plate material bin to the plate delivery mechanism; the plate delivery mechanism is docked with the strip cutting mechanism, and the plate delivery mechanism is used to continuously push the large test paper plates to the strip cutting mechanism for strip cutting, and the distance of each push is a test strip width; the strip connecting mechanism is respectively docked with the strip cutting mechanism and the single-row strip grabbing mechanism, and is used to receive a single test paper strip cut by the strip cutting mechanism, and convey a single test paper strip to the single-row strip grabbing mechanism; the single-row strip grabbing mechanism is used to carry the test paper strips on the strip connecting mechanism one by one to the test strip conveying station belt; a number of test strip positioning molds are evenly spaced on the test strip conveying station belt, and the test paper strips are positioned and conveyed in the test strip positioning molds, and one test paper strip corresponds to one test strip positioning mold; The strip connecting mechanism comprises a strip connecting linear moving module, a moving frame, a strip connecting lifting moving module and a positioning module, wherein the moving frame is installed on the strip connecting linear moving module, and a fixing assembly for receiving and fixing the test strip is arranged at the front end of the moving frame, and the test strip is fixedly positioned on the moving frame by fixing its two ends on the fixing assembly during cutting and transportation, and the middle part of the test strip is suspended on the fixing assembly, and the moving frame is driven by the strip connecting linear moving module to be connected to the strip cutting mechanism, and the front end of the test paper large plate with a width of one test strip falls into and is fixed on the fixing assembly, and after the test strip cutting mechanism cuts the test strip, the moving frame is driven by the strip connecting linear moving module to be connected to the positioning module; The positioning module is installed on the strip connection lifting and moving module and is located below the moving frame. The positioning module is provided with a first positioning groove adapted to the width of the test strip. The extension direction of the first positioning groove is parallel to the test strip on the moving frame. After the fixing assembly releases the two ends of the test strip, the positioning module rises under the drive of the strip connection lifting and moving module. The test strip falls into the first positioning groove and is separated from the moving frame as the positioning module rises, so as to be caught by the single-row grabbing mechanism. The positioning module is a groove wheel, and the strip connecting mechanism also includes a groove wheel servo motor arranged on the strip connecting lifting and moving module. The groove wheel servo motor is connected to the groove wheel driving, and a plurality of the first positioning grooves are evenly distributed on the outer peripheral surface of the groove wheel and the extension direction of the first positioning groove is parallel to the axis of the groove wheel. After the test strip on the moving rack falls into the first positioning groove at the top of the groove wheel, if it is a defective product, the groove wheel rotates under the drive of the groove wheel servo motor to remove it.

2. The detecting test strip cutting and feeding device according to claim 1, wherein The strip connection mechanism also includes a baffle fixedly arranged on the strip connection lifting and moving module, two baffles are located on one side of the groove wheel, and the two baffles are relatively arranged at two ends of the outer peripheral surface of the groove wheel, the first positioning groove on the groove wheel is located between the two baffles, and an arc-shaped baffle matching the edge shape of the groove wheel is arranged on the baffle at a position opposite to the groove wheel, and there is a clamping gap between the arc-shaped baffle and the outer peripheral surface of the groove wheel that is compatible with the thickness of the test strip; The length of the first positioning groove is less than that of the test strip and both ends of the first positioning groove are open, so that both ends of the test strip extend out of the first positioning groove. Before starting up, qualified test strips are pre-stored in the first positioning groove on the side of the grooved wheel fixed with the baffle. Both ends of the test strip are stuck in the clamping gap so that the test strip does not fall out of the first positioning groove. The test strip is used for top feeding when removing unqualified test strips. When removing, the grooved wheel rotates to the other side.

3. The detecting test strip cutting and feeding device according to claim 1, characterized in that, The moving frame includes a moving frame provided at the front end. The moving frame has a hollow frame which is adapted to the outer peripheral surface of the grooved wheel, so that the grooved wheel can be accommodated in the hollow frame, and there is no interference between the grooved wheel and the moving frame when the moving frame moves; a notch allowing the grooved wheel to pass through is provided at the front end of the hollow frame. The fixing assembly is located at the front end of the notch. The fixing assembly includes two oppositely arranged positioning edges and clamps. The two positioning edges are respectively arranged on both sides of the notch. The width of the positioning edge is adapted to the width of the test strip. The front end of a test strip width of the test strip board abuts against the two positioning edges for positioning. The two clamps are respectively arranged at the positioning edges to fix both ends of the test strip, so as to facilitate the strip cutting of the strip cutting mechanism and the movement of the test strip. The clamp is a pneumatic gripper or a suction cup.

4. A test strip cutting and feeding device according to claim 1, wherein, The strip receiving lifting and moving module includes a support frame, a strip receiving servo motor, a lead screw nut assembly, a strip receiving vertical slide rail, a strip receiving slider and a strip receiving mounting frame. The strip receiving servo motor and the strip receiving vertical slide rail are fixed on the support frame. The strip receiving servo motor is drivingly connected to the lead screw in the lead screw nut assembly. The strip receiving slider is fixedly connected to the nut in the lead screw nut assembly. The strip receiving slider is simultaneously arranged on the strip receiving vertical slide rail; the strip receiving mounting frame includes a vertical support plate and a horizontal support plate. The vertical support plate is fixedly connected to the strip receiving slider. The horizontal support plate is fixed at the top end of the vertical support plate. The positioning module is mounted on the horizontal support plate.

5. The detecting test strip cutting and feeding device according to claim 1, characterized in that, It further includes a vision detection mechanism. The vision detection mechanism is arranged above the strip receiving mechanism and is used for detecting whether the test strips on the strip receiving mechanism are qualified, so as to facilitate the removal of unqualified test strips.

6. The detecting test strip cutting and feeding device according to claim 1, wherein The strip feeding mechanism includes a carrier plate table, a large board positioning assembly, a strip feeding linear movement module, a strip feeding mounting frame and a large board clamp. A fixed plate is arranged on one side of the carrier plate table. The large board positioning assembly includes a positioning plate and a large board positioning cylinder connected to the positioning plate. The positioning plate is arranged opposite to the fixed plate. The test strip board is placed between the positioning plate and the fixed plate. The large board positioning cylinder drives the positioning plate to approach the fixed plate, and pushes a side edge of the test strip board to abut against the fixed plate for positioning; the moving direction of the strip feeding linear movement module is parallel to the length direction of the test strip board. The strip feeding mounting frame is mounted on the strip feeding linear movement module. The large board clamp is mounted on the strip feeding mounting frame. The large board clamp is a pneumatic gripper. The pneumatic gripper clamps the upper and lower sides of the test strip board. The pneumatic gripper drives the test strip board on the carrier plate table to move towards the strip cutting mechanism under the drive of the strip feeding linear movement module.

7. A test strip cutting and feeding device according to claim 1, wherein The plate taking mechanism includes a plate taking linear movement module, a plate taking lifting movement module and a plate taking component. The plate taking component is used for clamping or sucking the large test strip plate. The plate taking component is installed on the plate taking lifting movement module, and the plate taking lifting movement module is installed on the plate taking linear movement module. Driven by the plate taking linear movement module and the plate taking lifting movement module, the plate taking component transfers the large test strip plate in the large plate bin to the plate feeding mechanism; The strip cutting mechanism includes a fixed knife, a moving knife and a moving knife driving component. The moving knife is relatively arranged above the fixed knife. The moving knife driving component includes a cutting knife cylinder, a cutting knife slide rail, a cutting knife slider and a moving knife mounting plate. The cutting knife cylinder is connected to the moving knife mounting plate, the moving knife is installed on the moving knife mounting plate, the cutting knife slide rail is arranged vertically, the cutting knife slider is arranged on the cutting knife slide rail, and the cutting knife slider is simultaneously connected to the moving knife mounting plate. The cutting knife cylinder drives the moving knife mounting plate to move up and down along the direction of the cutting knife slide rail, so as to drive the moving knife to approach or move away from the fixed knife.

8. The detection test strip cutting and feeding device according to claim 1, characterized in that, The single-row strip grabbing mechanism includes a strip grabbing linear movement module, a strip grabbing lifting movement module and a test strip clamp. The test strip clamp is installed on the strip grabbing lifting movement module, and the strip grabbing lifting movement module is installed on the strip grabbing linear movement module. A number of relatively arranged grabbing blocks are arranged on the test strip clamp. A second positioning groove adapted to the width of the test strip is arranged on the grabbing block, and a vacuum sucker for adsorbing the test strip is arranged at the bottom of the second positioning groove. Different positions of the strip-shaped test strip are respectively adsorbed in the second positioning grooves of several grabbing blocks through the vacuum sucker.

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