CN114985957A

CN114985957A - Diaphragm laser cutting method and automatic filling and sealing production line

Info

Publication number: CN114985957A
Application number: CN202210391400.4A
Authority: CN
Inventors: 刘勇; 杨立昆; 董雪缘; 杜建伟; 万仁钦; 戚云飞; 王建刚
Original assignee: Wuhan Huagong Laser Engineering Co Ltd
Current assignee: Wuhan Huagong Laser Engineering Co Ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-09-02
Anticipated expiration: 2042-04-14
Also published as: CN114985957B

Abstract

The invention provides a film laser cutting method which is characterized by comprising the following steps; when the diaphragm moves to the position right below the light outlet of the laser, the diaphragm is visually positioned through the tray and the CCD camera; determining laser cutting lines according to the visual positioning information to set a cutting sequence of the laser cutting lines, wherein the cutting sequence is sequentially and respectively cut towards two sides from the middle of the film; the automatic filling and film sealing production line is also provided, and the film is cut by adopting the cutting method. According to the invention, when the diaphragm is cut by laser, the cutting sequence is carried out from the middle to two sides in sequence, so that the cutting position deviation caused by uneven stress distribution can be avoided, and the cutting quality is ensured.

Description

Diaphragm laser cutting method and automatic filling and sealing production line

Technical Field

The invention relates to filling equipment, in particular to a membrane laser cutting method and an automatic filling and sealing production line.

Background

When the diaphragm on the product after filling and sealing the membrane is cut in the existing market, a laser cutting mode can be adopted, and the diaphragm is usually cut along the moving direction of the product. But after carrying out the cold compress cooling to the diaphragm after sealing the membrane, adopt this kind of mode of cutting to influence cutting precision greatly, lead to the product defective rate to improve.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides a laser cutting method of a membrane and an automatic filling and sealing production line, and aims to solve the technical problems.

The invention is realized by the following steps:

the embodiment of the invention provides a membrane laser cutting method which is characterized by comprising the following steps;

when the diaphragm moves to the position right below the light outlet of the laser, the diaphragm is visually positioned through the tray and the CCD camera;

and determining the laser cutting line according to the visual positioning information to formulate the cutting sequence of the laser cutting line, wherein the cutting sequence is sequentially and respectively cut towards two sides from the middle of the film.

Furthermore, the laser cutting line in the middle is the number 1 cutting line, the laser cutting line on one side of the number 1 cutting line is the odd number laser cutting line which is increased in sequence, and the laser cutting line on the other side of the number 1 cutting line is the even number laser cutting line which is increased in sequence.

Further, when each laser cutting line is determined, the two sides of the product below the film are grabbed through the CCD camera, the angle mean value of the two sides is calculated, and the angle mean value is used as the angle of the corresponding laser cutting line.

Further, the angle of the laser cutting line is determined stepwise to both sides by the laser cutting line in the middle position.

Further, when the film is cut by laser, the edge of the film is pressed by the cover plate.

Furthermore, tailings generated after the membrane is cut are collected into a waste membrane collecting box through a waste material taking suction cup.

Furthermore, when the membrane is cut by laser, a cover body is arranged above the membrane, a first exhaust pipe is arranged on the cover body to extract smoke near the membrane, and a second exhaust pipe is used to extract smoke outside the cover body.

The embodiment of the invention provides an automatic filling and film sealing production line which comprises a rack, wherein a feeding station, a filling station, a film sealing station, a film cutting station and a discharging station are sequentially arranged on the rack, a tray is sequentially moved along the stations through a conveying assembly, and the tray is a carrier of a film sealing product to be filled; and the film cutting station cuts the film on the surface of the product after the film is sealed by adopting the cutting method.

And furthermore, at the film sealing station, the film is fixed on the product in a heat sealing mode, and the product after heat sealing is cooled through cold compress.

Further, the condensate water on the surface of the membrane is removed through the eliminating assembly after the product is cooled by cold compress, and the membrane enters the membrane cutting station after the condensate water is removed.

The invention has the following beneficial effects:

in the invention, when the membrane is cut, the CCD camera is adopted for visual positioning, the laser cutting line is determined at the same time, and the cutting sequence is respectively cut from the middle to two sides of the product, so that the cutting position deviation caused by uneven stress distribution can be avoided, and the cutting quality is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic flow chart of an automatic filling and film sealing production line according to an embodiment of the present invention;

fig. 2 is a first view structure schematic diagram of a feeding station of the automatic filling and film sealing production line of fig. 1;

fig. 3 is a schematic view of a second view structure of a feeding station of the automatic filling and sealing film production line of fig. 1;

fig. 4 is a schematic structural diagram of a third view angle of a feeding station of the automatic filling and film sealing production line of fig. 1;

FIG. 5 is a schematic structural diagram of the conveying line of the automatic filling and sealing production line of FIG. 1;

FIG. 6 is a schematic structural diagram of a filling station of the automatic filling and sealing production line of FIG. 1;

FIG. 7 is a schematic structural diagram of a film sealing station of the automatic filling and film sealing production line of FIG. 1;

fig. 8 is a schematic structural diagram of a feeding frame of a film sealing station of the automatic filling and film sealing production line of fig. 1;

fig. 9 is a schematic structural diagram of a mold taking mechanism and a film sealing mechanism of a film sealing station of the automatic filling and film sealing production line of fig. 1;

fig. 10 is a schematic structural diagram of a film cutting station of the automatic filling and sealing film production line of fig. 1;

fig. 11 is a schematic structural diagram of the inside of a cover body of a film cutting station of the automatic filling and sealing film production line of fig. 1;

FIG. 12 is a schematic diagram showing a cutting sequence of a laser cutting line of a film cutting station of the automatic filling and sealing film production line of FIG. 1;

FIG. 13 is a schematic view of the elimination assembly and tailing collection structure of the automatic filling and sealing film production line of FIG. 1;

FIG. 14 is a schematic view of a structure of the automatic filling and film sealing production line of FIG. 1 showing the cooperation between a blanking station and a manual detection station;

fig. 15 is a first view structural schematic diagram of a blanking station of the automatic filling and film sealing production line of fig. 1;

fig. 16 is a second view structural schematic diagram of a blanking station of the automatic filling and film sealing production line of fig. 1;

fig. 17 is a schematic structural diagram of a finished product conveying line of a blanking station of the automatic filling and film sealing production line of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 17, an embodiment of the present invention provides an automatic filling and film sealing production line, which can be used for filling and film sealing of reagent cards, and specifically includes a feeding station 1, a filling station 2, a film sealing station 3, a film cutting station 4, and a discharging station 5, where each station is sequentially disposed on a rack 8 along a moving direction of the reagent card, and the reagent cards can be transferred between the stations through a conveying assembly 7, generally, a plurality of groups of reagent cards are placed on a tray 6, and the conveying assembly 7 drives the tray 6 to move, so as to control the transfer of the reagent cards between the stations. The loading station 1 is mainly used for placing products to be filled into the tray 6, the products to be filled can be placed into the tray 6 manually, and certainly, the products to be filled can be automatically grabbed into the tray 6 by a manipulator; when the tray 6 moves along the conveying assembly 7 to the filling station 2, the filling station 2 can fill liquid, which can be a reagent, into the product to be filled, so that the whole production line needs a very high cleanliness class (FFU), and the local part needs to reach ten thousands of levels; the filled product continuously moves to a film sealing station 3, the film sealing station 3 can be used for laminating a reagent card filled with liquid, and a covered membrane is fixed on the reagent card; after the film sealing is finished, separating the diaphragm through a diaphragm cutting station 4 according to the position of the reagent card, wherein the separated diaphragm corresponds to the reagent card, and the cut waste film can be collected; after the whole filling and film sealing are completed, the reagent card of the product enters the blanking station 5 to be packed and boxed, and the reagent card can be artificially packed and boxed as required, or can be automatically assembled to pack and boxed finished products. Through this embodiment, after the material loading, can realize the automatic filling and the automatic membrane that seals to the reagent card, and the unloading of packing after detecting the completion, whole work efficiency is very high.

For tray 6, supply the reagent card to place, can supply a plurality of reagent cards to place side by side usually, be provided with the draw-in groove with reagent card one-to-one in tray 6, in the draw-in groove that corresponds is arranged in every reagent card that waits the filling to seal the membrane in material loading station 1, and then can take out the vanning packing with finished product reagent card in tray 6 at unloading station 5. In the preferred scheme, a silica gel gasket is arranged in the tray 6, the reagent cards 1 are all arranged on the silica gel gasket, and the reagent cards can be prevented from being scratched by the tray 6 through the silica gel gasket. The silica gel gasket belongs to a consumable material, and is replaced once every 28 ten thousand reagent cards (about 7 working days) are produced.

The embodiment of the invention provides a conveying assembly 7, and the conveying assembly 7 can be applied to the production line. The conveying assembly 7 comprises a conveying line 71, and the conveying line 71 extends along the loading station 1, the filling station 2, the film sealing station 3 and the film cutting station 4 and is connected with the stations. The conveying line 71 is continuously thinned, the conveying is carried out in a chain wheel and chain transmission assembly 72 mode, a part of the structure of the tray 6 can be clamped on the chain 721, and the chain 721 can drive the tray 6 to move under the action of the motor. In addition, the conveying line 71 further includes two slide ways 73, the two slide ways 73 are provided, the chain 721 is located between the two slide ways 73, the tray 6 is slidably supported on the two slide ways 73, and the chain 721 drives the tray 6 to move along the slide ways 73.

In a preferred scheme, the conveying assembly 7 further comprises a return line 74, and the tray 6 at the blanking station 5 is recovered to the feeding station 1 through the return line 74, so that the tray 6 can be automatically recycled. Two arrangements of the return line 74 are possible, and the two arrangements will be described separately below.

Example one

The return line 74 and the conveying line 71 are arranged on the rack 8 side by side and located at the same or approximately the same height, the conveying line 71 moves the tray 6 loaded with the reagent cards from the loading station 1 to the unloading station 5, and transfers the empty tray 6 to the return line 74 after all the finished reagent cards in the tray 6 are transferred, the empty tray 6 is transferred from the corresponding end of the unloading station 5 to the corresponding end of the loading station 1 at the return line 74, and the empty tray 6 is transferred to the conveying line 71 from the return line 74 after reaching the corresponding end of the loading station 1. In this embodiment, the return line 74 and the conveying line 71 may work in the same manner, for example, in the form of a chain wheel and chain transmission assembly 72, and the tray 6 is clamped on the corresponding chain 721, or in the form of a conveyor belt transmission, and the empty tray 6 is directly placed on the conveyor belt. For the transfer of the tray 6 between the return line 74 and the conveying line 71, a mechanical arm may be used, specifically, two sets of mechanical arms are provided, and the two sets of mechanical arms are respectively located at the feeding station 1 and the discharging station 5, where the mechanical arm located at the discharging station 5 may transfer the empty tray 6 on the conveying line 71 to the return line 74, and the mechanical arm located at the feeding station 1 transfers the empty tray 6 on the return line 74 to the conveying line 71. The execution end of manipulator can snatch tray 6 through vacuum adsorption's mode, perhaps the execution end of manipulator sets up the tong, and the relative border of tray 6 is got to the tong clamp.

Example two

Return line 74 is arranged above and below feed line 71, for example, with feed line 71 disposed directly above return line 74, with the end of feed line 71, empty tray 6 moving downward to the head of return line 74, and at the end of return line 74, empty tray 6 moving upward to the head of feed line 71. For the transfer between the return line 74 and the conveying line 71, a form of a hoist may be adopted, the two sets of hoists are also provided, the hoists are respectively located at the head end and the tail end of the conveying line 71, the empty tray 6 at the tail end of the conveying line 71 is moved onto the hoist, the hoist moves vertically downwards, and when the height of the empty tray 6 is equal to that of the return line 74, a driving member on the hoist moves the empty tray 6 to the head end of the return line 74; similarly, at the end of the return line 74, the empty tray 6 is moved onto the corresponding elevator 58, the elevator is moved vertically upwards, and when being level with the conveyor line 71, the drive member on the elevator moves the empty tray 6 to the head end of the conveyor line 71. Of course, the transferring method may also adopt a robot transferring method, but the moving path of the robot is relatively complex, and the robot needs to move in the horizontal direction and the vertical direction. In this way, the spatial arrangement of the conveyor assemblies 7 can be reduced, making the overall production line arrangement compact.

The optimized conveying line 71 is arranged in a Y-shape at the feeding station 1, and includes two separate sections 711 and a converging section 712, the two separate sections 711 are arranged at intervals, the head end of the converging section 712 is close to the tail end of the two separate sections 711 and is located between the two separate sections 711, and the converging section is a line corresponding to the sprocket chain transmission assembly 72. The staff supplies the empty tray 6 at the two-section separation section 711, and the tray 6 filled with the product to be filled is moved to the convergence section 712 through the two-section separation section 711, and is transported to the convergence section 712 through the manipulator at the end of the separation section 711, and the convergence section 712 extends along the direction from the filling station 2 to the blanking station 5. The return line 74 is partially positioned right below the converging section 712, is partially positioned below the two divided sections 711 and is positioned between the two divided sections 711, and the empty tray 6 on the return line 74 is lifted to be equal to the conveying line 71 by the elevator 76 and then horizontally moves to one of the divided sections 711. A belt transport may be used for the divided sections 711, the trays 6 are supported on the belt, and a stopper 713 is provided at the end of the divided sections 711, the stopper 713 restricting the movement of the trays 6. In addition, a stacking rack 714 is further arranged on the dividing section 711, the stacking rack 714 is close to the head end of the dividing section 711, and the empty trays 6 returned by the return line 74 can be transferred to the stacking rack 714 for prestoring after entering the dividing section 711, so that excessive empty trays 6 are prevented from being stacked on the dividing section 711 due to the feeding efficiency. The stacking rack 714 is provided with a plurality of layers of liftable passages, each separating section 711 is also provided with two disconnected parts, and the stacking rack 714 is just positioned at the disconnected position, wherein the front part of the separating section 711 is butted with the lifter 76, and the rear part of the separating section 711 is butted with the converging section 712 and is used for loading the tray 6. The tray is directed from the front portion of the split section 711 into one of the lanes of the stacker frame 714; when the tray 6 needs to be pre-stored, the channel moves vertically upwards, and the tray 6 cannot enter the later part of the separation section 711; when the tray 6 does not need to be prestored, the tray 6 directly passes through one of the passages to enter the latter part of the divided section 711; when the pre-stored tray 6 needs to be fed into the next part of the dividing section 711, the passage corresponding to the tray 6 can be controlled to move down to the same height as the dividing section 711, and the tray 6 moves from the passage to the next part of the dividing section 711.

Optimizing above-mentioned two embodiments, conveyor components 7 is still including dust removal bellows, and dust removal bellows is located return line 74 department, and return line 74 passes dust removal bellows, and when the empty tray 6 moved along return line 74, empty tray 6 can pass dust removal bellows, can carry out cleaning to empty tray 6 through dust removal bellows. In practice, it is also necessary for the tray 6 to be cleaned manually at regular intervals, which may be for example once a week.

The embodiment of the invention provides a filling station 2 which can be applied to a production line. The filling station 2 includes a liquid source 21 and a liquid transfer device 22, the liquid source 21 and the liquid transfer device 22 are connected by a pipeline, the liquid transfer device 22 is mounted on the frame 8, and the operation position of the liquid transfer device 22 can be controlled to be right above the moving path of the tray 6 by a driving device 24. The conveying line 71 of the conveying assembly 7 passes through the filling station 2, and when the tray 6 carrying the reagent cards moves to the corresponding position of the filling station 2, the movement of the tray 6 is stopped, and the liquid in the liquid source 21 can be filled into the reagent cards by the liquid-moving device 22. The entire process is automated and the pipetting device 22 is capable of dosing liquid into the reagent card.

Optimizing above-mentioned embodiment, filling station 2 still includes liquid storage box 23, and liquid storage box 23 passes through the pipeline intercommunication with liquid source 21, and liquid storage box 23 has ascending uncovered, and uncovered being located pipetting device 22's moving range. In this embodiment, the liquid in the liquid source 21 enters the liquid storage box 23 first, and the liquid-transferring device 22 can draw the liquid from the open position into the liquid storage box 23 by way of drawing, and then discharge the drawn liquid into each reagent card of the tray 6. The liquid storage box 23 and the liquid source 21 are driven by air pressure, part of liquid in the liquid source 21 is directly pressed into the liquid storage box 23 by adopting compressed air on one side of the liquid source 21, the operation part of the liquid transfer device 22 can be extended into the liquid storage box 23 due to the fact that the amount of the liquid in the reagent card is small, the operation part of the liquid transfer device 22 directly absorbs a small amount of liquid, then the operation part of the liquid transfer device 22 is moved to the opening of the reagent card, and the liquid in the operation part of the liquid transfer device 22 is poured into the reagent card. The pipetting device 22 may be a pipette, which is similar to a syringe structure and can store the extracted liquid in its TIP head, specifically, a pneumatic pipette equipped with an air pump 222, and the corresponding pneumatic pipette is controlled by the air pump 222 to aspirate liquid and discharge liquid. In this way, the flow of liquid in the pipeline can be reduced to ensure the cleanliness requirement. In addition, because the pipettor need stretch into liquid storage box 23 imbibition earlier, then to flowing back in the reagent card, drive arrangement 24 can adopt triaxial sliding platform, including X axle, Y axle and Z axle, and liquid storage box 23 sets up with transfer chain 71 side by side, and then can make things convenient for the imbibition flowing back action of pipettor.

Continue to refine stock solution box 23, have many reservoir that set up side by side in it, move liquid device 22 and then include the multiunit pipettor, pipettor and reservoir one-to-one, the reservoir all communicates with liquid source 21, and the notch of reservoir corresponds with the uncovered of stock solution box 23, and the liquid level of reservoir should have a take the altitude with the notch to prevent that liquid splashes in the reservoir and produces the cluster liquid. The liquid storage tanks are long strips, the length extension direction of the liquid storage tanks is the same as the moving direction of the conveying line 71, and the liquid storage tanks are arranged along the length direction perpendicular to the conveying line 71. Can control each pipettor synchronous motion through drive arrangement 24, can place a plurality of reagent cards in each tray 6 usually, each reagent card has a plurality of flourishing liquid holes, can effectively improve the filling efficiency of filling station 2 to the reagent card in the tray 6 through setting up many reservoir and multiunit pipettors. Each air pump 222 may correspond to two pipettes, for example, the pipetting device 22 further includes a base, the base is mounted on the three-axis sliding platform, the pipettes and the air pump 222 are mounted on the base, each set of the air pump 222 is disposed on the upper portion of the base, the pipettes having the same number as the air pumps 222 are disposed on two opposite sides of the base, the pipettes on two sides of the base may simultaneously fill reagent cards in the same tray 6, or fill reagent cards in different trays 6; in addition, filling station 2 includes two sets of liquid-transfering device 22 and two sets of drive arrangement 24, and two sets of liquid-transfering device 22 all imbibe by same stock solution box 23, and it can be simultaneously to the reagent card perfusion in two trays 6. In preferred scheme, be provided with multiunit ultrasonic wave level sensor on stock solution box 23, and each reservoir corresponds two sets of ultrasonic wave level sensor, can detect the liquid level height that corresponds the reservoir through ultrasonic wave level sensor, be used for detecting the liquid level height at two long borders that correspond the reservoir through two sets of ultrasonic wave level sensor specifically, height detection error is no longer than 0.5mm, and then can judge whether two long borders of reservoir have the bubble along the surface (the bubble all suspends in liquid level border position usually), can effectively avoid the pipettor to inhale the bubble, again with the bubble arrange into the reagent card in. The liquid storage box 23 further comprises an overflow groove, the overflow groove is communicated with the liquid storage groove, when the liquid level in the liquid storage groove reaches an overflow position, the liquid in the liquid storage groove can automatically flow into the overflow groove, so that the liquid level of the liquid storage groove can be effectively controlled, the TIP head of the pipettor is prevented from extending into the liquid level too much, the TIP head is usually less than 1mm, the possibility of adhering the liquid to the surface of the TIP head is reduced, and the filling precision of the pipettor is guaranteed. For further guaranteeing to move liquid the precision, the liquid level in the reservoir is fixed to it is fixed to guarantee to move the degree of depth that the liquid ware TIP head stretched into in the liquid level, and then makes and move liquid all to have higher uniformity at every turn.

Because the pipetting device 22 adopts a pipettor to fill the reagent card, the filling station 2 is additionally provided with a TIP replacement box 25, and the TIP replacement box 25 is located in the movement range of the pipettor, that is, the pipettor can be moved to the TIP replacement box 25 by the driving device 24. In this embodiment, the TIP replacement cassette 25 may provide a TIP, and the TIP of the pipette may be automatically replaced at regular intervals by the driving device 24.

Further, filling station 2 can set up two sets ofly, and two sets of filling station 2 sets gradually along the moving direction of tray 6, can adopt two sets of filling station 2 to fill the reagent card in same tray 6. The pipettor number of filling station 2 is relevant with the flourishing liquid hole number of reagent card, specifically, when the number of flourishing liquid hole is nine, then can be five by the pipettor of one of them filling station 2, the pipettor of another filling station 2 is four, two filling station 2 fill the flourishing liquid hole of reagent card staggeredly, filling station 2 that has five pipettors promptly can be to the flourishing liquid hole of 1, 3, 5, 7, 9 of reagent card, filling station 2 that has four pipettors then can be to the flourishing liquid hole of 2, 4, 6, 8 of reagent card.

The refining liquid source 21 comprises a frame 211 and volumetric flasks 212 arranged in the frame 211, each volumetric flask 212 is used for filling liquid, each volumetric flask 212 is communicated with a liquid storage tank, and the liquid in the volumetric flasks 212 can be pressed into the liquid storage tanks through air pressure. In this embodiment, the frame 211 has a cavity for placing the volumetric flask 212, and the volumetric flask 212 of 2.5L, 3.5L, 6L, 12L can have concurrently in it, specifically determines according to the liquid demand of production shift, and the top of frame 211 has the opening, makes things convenient for volumetric flask 212's change, and the opening adopts the transparent cover shutoff. Volumetric flask 212 can incline certain angle when placing in the cavity, for example 15 degrees, stretch into volumetric flask 212 with tube head glass stick in, in volumetric flask 212 is impressed clean air to the air pump of outside, make the bottle internal gas pressure rise to in making liquid in the bottle follow pipeline entering stock solution box 23, tail liquid is remained in can reducing volumetric flask 212.

In the preferred scheme of production line, still add the first inspection station between filling station 2 and the membrane sealing station 3, the first inspection station is the selective examination, and it includes the selective examination unloading line, and the selective examination unloading line perpendicular to transfer chain 71 is provided with the rotatory module of tray at the head end of selective examination unloading line, and the rotatory module of tray includes electronic centre gripping jar, can snatch tray 6 to the selective examination unloading line on through electronic centre gripping jar. Due to the fact that the sampling inspection blanking line is arranged, the conveying line 71 is disconnected between the primary inspection stations, namely the conveying line 71 is in a disconnected mode, and the tray 6 is transferred between the two sections of the conveying line 71 through the electric clamping cylinder. In a preferred embodiment, the cutting position of the conveying line 71 can be set according to the actual requirement, specifically, for the convergence section 712, according to the length.

The embodiment of the invention also provides a film sealing station 3 which can be applied to a production line. The film sealing station 3 comprises a feeding frame 31, a mold taking mechanism 32 and a film sealing mechanism 33, wherein the feeding frame 31 is used for placing a rolled film and is used for continuously providing a film, the mold taking mechanism 32 can cut the rolled film to obtain a film which needs to seal the reagent card with a film, the cut film is placed on the filled reagent card to seal each liquid containing hole on the reagent card, the film sealing mechanism 33 fixes the film on the reagent card, the film sealing mechanism 33 is positioned right above the moving path of the tray 6, namely, the reagent card with the film laid thereon is moved to the position below the film sealing mechanism 33, and the film sealing mechanism 33 fixes the film and the reagent card.

In the embodiment, the film sealing mechanism 33 includes a hot air plate 331 and a driving member 332, and the hot air plate 331 is located right above the moving path of the tray 6. In this embodiment, the hot air plate 331 is at a higher temperature, and when the reagent card on which the membrane is laid moves to a position right below the hot air plate 331, the driving member 332 can drive the hot air plate 331 to press down on the membrane, so that the membrane can be thermally sealed on the reagent card. A lifting cylinder is typically employed for the drive 332. In a preferred embodiment, the hot air plate 331 is provided with a buffer structure 333, the buffer direction is a vertical direction, and the buffer structure 333 can be a buffer layer, which enables pressure distribution to be relatively uniform when the hot air plate 331 presses down the reagent card.

The structure of the refined feeding frame 31 comprises a frame body 311 and a rotating shaft 312 arranged on the frame body 311, the frame body 311 is detachably connected with the rack 8, the rotating shaft 312 is used for installing a rolled film, and specifically, the rotating shaft 312 penetrates through a middle through hole of the rolled film. In this embodiment, when the film roll is mounted on the rotating shaft 312, the film roll can rotate around the rotating shaft 312 relative to the frame body 311, in a preferred embodiment, the rotating shaft 312 is rotatably connected to the frame body 311, and the film roll is clamped with the rotating shaft 312, so that the film roll can be ensured to rotate relative to the rotating shaft 312. In actual work, the outer edge of the rolled film horizontally unfolds, when acting force in the direction away from the rotating shaft 312 is applied to the horizontally unfolded part of the rolled film, the rolled film rotates around the rotating shaft 312, the rolled film is gradually peeled, and after the rolled film is used up, the whole feeding frame 31 can be directly drawn out from the rack 8, so that a new rolled film is conveniently installed on the rotating shaft 312. Therefore, a handle is arranged on the frame body 311, so that the worker can pull the feeding frame 31.

Further, material loading frame 31 still includes dust removal roller 313, and dust removal roller 313 includes two roller shafts, and two roller shafts set up relatively and can rotate relatively support body 311, and the roller shaft is on a parallel with pivot 312. A gap is formed between the two roll shafts, the horizontal unfolding part of the rolled film penetrates through the gap between the two roll shafts, the upper surface and the lower surface of the section of the film are respectively contacted with the upper roll shaft and the lower roll shaft, a certain clamping effect can be formed on the film, one roll shaft is a driving roll, the other roll shaft is a driven roll, the driving roll rotates actively, the driving roll can drive the film to move horizontally, the film drives the driven roll to rotate, and further the continuous feeding of the film taking mechanism 32 can be realized, and the effect of removing dust on the surface of the film of the rolled film can be realized through the dust removing roll 313.

The structure of the thinning and mold-taking mechanism 32 comprises a film cutting assembly 321 and a film grasping assembly 322, wherein the film cutting assembly 321 can be used for cutting and rolling the film to obtain a film sheet with a proper size, and the film grasping assembly 322 can transfer the cut film sheet to a filled reagent card. Typically, the film cutting assembly 321 includes a cutter that moves horizontally and a cutter that moves vertically to cut the film sheet. The film grabbing assembly 322 grabs the cut film in a vacuum adsorption manner, specifically, the film grabbing assembly 322 includes a translation table 324 and two sets of adsorption heads 323, the adsorption heads 323 can be controlled to do XYZ-axis linear movement by the translation table 324, and the two sets of adsorption heads 323 are arranged at intervals relatively and can correspond to two opposite edges of the cut film.

At the position of the corresponding film sealing station 3, specifically, the position of the corresponding film sealing mechanism 33 is provided with a jacking positioning assembly 34, the jacking positioning assembly 34 comprises two groups of supporting platforms 341 capable of moving along the vertical direction, the two groups of supporting platforms 341 are arranged at intervals, and at least partial structures of the two groups of supporting platforms 341 are positioned under the moving path of the tray 6. In this embodiment, under the normal condition, the top surface of two brace tables 341 all is less than the top surface of slide 73, brace table 341 can not influence tray 6's normal removal, and when hot-blast plate 331 need push down heat-seal reagent card, brace table 341 moves vertically upwards, two brace tables 341 can support tray 6 jointly, and make tray 6 and transfer chain 71 break away from, avoid hot-blast plate 331 to push down transfer chain 71, conveniently control the vertical position of tray 6 simultaneously, and can reach the purpose of accurate positioning. The supporting table 341 is provided with a buffer structure, which is also a buffer layer, so that the buffer structure cooperates with the buffer layer on the hot air plate 331 to form two-stage buffer, thereby further ensuring that the pressure distribution of the hot air plate 331 on the membrane of the reagent card is uniform.

In the preferred scheme, two sets of supporting platforms 341 are located the relative both sides of transfer chain 71 respectively, lie in the outside of slide 73 promptly, and two slides 73 of tray 6 part structure homohorizontal protrusion, and this bulge is located supporting platform 341 directly over, and after two sets of supporting platforms 341 moved up vertically, two sets of supporting platforms 341 can support tray 6 jointly. The jacking positioning assembly 34 further comprises a cylinder 342, the cylinder 342 corresponds to the supporting platform 341, the cylinder 342 is vertically arranged, and the vertical direction movement of the supporting platform 341 can be controlled through the extension and contraction of the cylinder 342.

In another embodiment of the jacking positioning assembly 34, the conveying line 71 has two sets of sprocket-chain transmission assemblies 72, the two chains 721 are distributed at intervals, the jacking positioning assembly 34 is disposed between the two chains 721, that is, the two supporting platforms 341 of the jacking positioning assembly 34 are both located between the two chains, at this time, the two supporting platforms 341 can be distributed at intervals along the moving direction of the conveying line 71, and the two supporting platforms 341 can also support the tray 6 together after the cylinder 342 extends.

A plurality of sets of jacking positioning assemblies 34 are arranged and are distributed at each station at intervals, for example, at the filling station 2, the jacking positioning assemblies 34 are adopted to jack the tray 6 up first, and then the reagent cards are filled; similarly, the jacking positioning assembly 34 can also be arranged at the subsequent cold compressing mechanism 6 and the film cutting station 4.

The embodiment of the invention also provides a cold compress mechanism 35, wherein the cold compress mechanism 35 is positioned at the discharging side of the film sealing station 3, namely the tray 6 after film sealing is moved to the cold compress mechanism 35, the reagent card after film sealing can be cooled through the cold compress mechanism 35, and the tray 6 passing through the cold compress mechanism 35 enters the film cutting station 4. Because the reagent card is the heat-seal when sealing the membrane, the liquid quality in the reagent card is probably influenced to the heat-seal temperature, can reduce the temperature of reagent card through cold compress mechanism 35, can guarantee the liquid quality in the reagent card.

The refined cold compress mechanism 35 comprises a cold compress plate 351 and a driving assembly 352, wherein the driving assembly 352 can control the cold compress plate 351 to vertically move, the cold compress plate 351 is positioned right above the moving path of the tray 6, when the tray 6 moves to the position right below the tray 6, the driving assembly 352 controls the cold compress plate 351 to vertically move downwards so that the cold compress plate 351 is in contact with the membrane on the reagent card, and the cold compress plate 351 can cool the membrane. For the driving assembly 352, a vertically disposed air cylinder may be used, and the cold compressing plate 351 may be driven to move vertically by the air cylinder. The structure of the cold compressing plate 351 is continuously refined, a cold water circulating pipeline 354 is arranged in the cold compressing plate 351, the cold water circulating pipeline 354 is connected with a refrigerating device, and the cold water circularly flows to play a role in cooling the diaphragm. The cold water circulation pipeline 354 is distributed in a serpentine shape in the cold compress plate 351, so that the utilization rate of cold water can be improved.

In an embodiment, the cold compress mechanism 35 further includes a removing component 353, and the removing component 353 can remove condensed water possibly formed on the surface of the product after cold compress, in particular, the condensed water on the surface of the membrane, which can ensure the cleanliness requirement of the reagent card.

Various embodiments may be employed for the cancellation component 353, such as embodiment one: eliminate subassembly 353 includes the air knife, and the air knife is located cold compress board 351's delivery side, and the air-out direction of air knife is the moving direction of level and perpendicular to tray 6, and the air knife can last bloies to the diaphragm surface of the reagent card after the cold compress, and then can eliminate the comdenstion water that the diaphragm surface probably produced. Example two: the eliminating assembly 353 comprises a wiping piece 355 and a control piece 356, wherein the wiping piece 355 can be wiping cotton, the wiping piece 355 is located right above the conveying line 71, when the reagent card after being cooled moves to be right below the wiping piece 355, the control piece 356 can control the wiping piece 355 to be in contact with the membrane surface of the reagent card, and the control piece 356 can continue to control the wiping piece 355 to move back and forth horizontally so as to achieve the purpose of wiping possible condensed water on the membrane surface of the reagent card.

After the cold compress cooling, the tray 6 continues to move to the film cutting station 4. Because a plurality of reagent cards are arranged in the tray 6, the size of the membrane is similar to that of the tray 6 at the membrane sealing station 3, and the membrane seals the plurality of reagent cards simultaneously, so that after the tray 6 enters the membrane cutting station 4, the membranes corresponding to the reagent cards need to be separated, and redundant membranes need to be cut. In the embodiment of the invention, the film cutting station 4 cuts the film by using laser, so that the film cutting station 4 comprises a laser 41 and a laser controller 42, wherein a light outlet of the laser 41 is positioned right above the conveying line 71, and when the tray 6 carrying the reagent card after film sealing moves to the film cutting station 4, the laser controller 42 controls the laser 41 to work, and the film is cut according to a preset program.

The specific laser cutting method of the membrane comprises the following steps:

when the diaphragm moves to the position right below the light outlet of the laser 41, the diaphragm is visually positioned through the tray 6 and the CCD camera;

and determining a laser cutting line according to the visual positioning information to formulate a laser cutting sequence, wherein the cutting sequence is sequentially and respectively cut towards two sides from the middle of the film.

When determining the laser cutting lines, the number of the laser cutting lines is related to the number of the reagent cards, and both sides of each reagent card have the laser cutting lines, for example, when the number of the reagent cards is 8, the number of the laser cutting lines is 9, and the laser cutting sequence is as follows: 8/6//4/2/1/3/5/7/9, the numbers representing the order of the corresponding laser cutting lines and being determined according to the direction of movement of the trays 6 on the conveyor line 71, although 9/7/5/3/1/2/4/6/8 is also contemplated.

In the invention, because the diaphragm is hot-pressed onto the reagent card through the hot air plate 331 and is subsequently subjected to cooling treatment through the cold compress mechanism 35, the diaphragm can generate certain stress, and if the diaphragm is cut sequentially from one side to the other side, the stress on the two sides after cutting is unevenly distributed, so that the cutting position during subsequent film cutting and the position during CCD camera visual positioning are greatly deviated, and the film cutting quality is difficult to ensure. In the embodiment, the film is cut from the middle, so that the stress generated after the film is cooled can be effectively released, the cutting position deviation caused by uneven stress distribution can be avoided, and the cutting quality is ensured.

In the preferred embodiment, when the membrane is cut by laser, the edge of the membrane needs to be pressed by the cover plate, which can prevent the membrane from generating large deformation after being cut and the membrane from deviating a large distance.

Continuously optimizing the laser cutting method of the film, when the cutting line corresponding to each reagent card is determined, capturing two edges of each reagent card through a CCD camera, calculating the angle mean value of the two edges, and taking the angle mean value as the angle of the laser cutting line. Through this kind of mode, can prevent that the reagent card from putting unparallel or tray 6 wholly when having certain angle in tray 6, the reagent card corresponds the inhomogeneous problem of both sides cutting of diaphragm.

Furthermore, because each reagent card corresponds to two laser cutting lines during laser cutting, cutting tailings cannot be generated after the cutting is finished, the cutting tailings are usually positioned at the outer sides of the corresponding areas of the reagent cards in the tray 6, namely the reagent cards at the two sides, and the cutting tailings are supported on the edge of the tray 6, so that the cutting tailings can be captured by the scrap-taking suction cup 43 and then placed in the waste film collecting box 44.

In addition, at the film cutting station 4, as the film is cut by laser, smoke and dust are inevitably generated, and therefore a dust removing structure is arranged at the film cutting station 4, in the embodiment, double-layer dust removal is adopted, one layer of dust removal aims at the position of the film, a cover body 45 is arranged above the film, the cover body 45 is positioned right above the film and below the cover body 45 is close to the film, the laser cuts the film in the cover body 45, and therefore the smoke and dust generated in the cutting process are mainly positioned in the cover body 45, a first air suction pipe 451 is arranged on the cover body 45, and most of the smoke and dust can be sucked out of the film cutting station 4 through the first air suction pipe 451; the two-layer dust removal is performed on the whole film cutting station 4, the film cutting station 4 is covered by the cover 46, and the cover 46 is provided with the second air extraction pipe 461, so that even a small amount of smoke escapes from the cover 45, the smoke escaping into the cover 46 can be further extracted through the second air extraction pipe 461.

After the diaphragm is cut, all reagent cards in the tray 6 are finished products and enter a manual detection station through a conveying line 71, and the manual detection station is mainly used for performing appearance detection on the finished products and entering a discharging station 5 for packing and boxing after the finished products are determined.

The blanking station 5 provided by the embodiment of the invention can be applied to a production line and comprises a tray conveying line 51, a boxing conveying line 52, a first manipulator 53 and a second manipulator 54, wherein the tray conveying line 51 can convey tray disks 55 to the boxing conveying line 52, the boxing conveying line 52 is used for conveying turnover boxes 56, the first manipulator 53 can transfer detected finished products into the tray disks 55, and the second manipulator 54 can transfer the tray disks 55 containing finished product reagent cards into the turnover boxes 56. In this embodiment, the finished reagent cards are transported to the blanking station 5, the finished reagent cards are captured into the tray trays 55 by the first robot arm 53, and when the tray trays 55 are filled, the tray transport line 51 transports the tray trays 55 to the container transport line 52, and the tray trays 55 are stacked one by one onto the transfer containers 56 by the second robot arm 54, and when the transfer containers 56 are filled, the container transport line 52 blanks the transfer containers 56 and transports the empty transfer containers 56 to the carousel transport line 71. In the process, the finished reagent cards can be boxed and packaged through the matching of the two conveying lines 71 and the two mechanical arms, the whole process is automatically completed, the packaging efficiency can be improved on the one hand, and the labor cost is reduced on the other hand. Because the first manipulator 53 is used for grabbing finished product reagent cards, the execution end of the first manipulator 53 adopts a sucker to adsorb the finished product reagent cards, and in the preferred scheme, the sucker adopts a variable-distance sucker which is combined with CCD camera vision positioning to adjust the corresponding distance of the sucker; the second robot 54 is configured to carry the tray 55 and may take the form of a gripper, which may be four-jaw and two-jaw, wherein the four jaws correspond to four sides of the tray 55 and the two jaws are configured to grip one set of opposing sides of the tray 55. Wherein, tray dish 55 has a plurality of holding tanks, and each holding tank is the array and distributes, and first manipulator 53 puts the reagent card to each holding tank in.

In an advantageous embodiment, the palletizing line 51 is perpendicular to the palletizing line 52, wherein the palletizing line 52 is the end of the entire production line, one end of which is used for providing empty totes 56, the other end of which is used for taking off the totes 56 filled with reagent cards, the end of the palletizing line 51 extends to the middle of the palletizing line 52, the palletizing line 51 generally extends along the length of the entire production line, and the palletizing line 52 extends along the width of the production line.

Continuing with the above embodiment, the blanking station 5 further comprises a storage rack 57, an elevator 58, and a cross-over rack 571, wherein the storage rack 57 is mainly used for stacking empty tray 55, and the cross-over rack 571 is used for moving the tray 55 stacked at the bottom out of the storage rack 57 and transferring it to the elevator 58. In this embodiment, the tray loading transport line 51 and the boxing transport line 52 are equal in height, the cross frame 571 is equal in height or close to the transport line 71, the elevator 58 can be connected to two heights, the lower point of the elevator 58 is in butt joint with the tray loading transport line 51, the upper point of the elevator 58 is in butt joint with the cross frame 571, and the upper point of the elevator 58 serves as a finished reagent card tray position, that is, when the cross frame 571 moves the tray 55 to the elevator 58, the first manipulator 53 captures the finished reagent card into the tray 55, and after tray loading is completed, the elevator 58 vertically moves downwards, and the tray 55 is transferred to the tray loading transport line 51. Through this embodiment structure, can optimize the spatial arrangement of unloading station 5, unloading station 5 occupation space can not too big, can realize the automatic supply of tray dish 55 simultaneously. Wherein the storage rack 57 is provided with a plurality of supporting structures 572, the supporting structures 572 can be provided in a plurality of sets, and are arranged around the storage rack 57, for example, the storage rack 57 is square, the supporting structures 572 can be four sets, each orientation of the storage rack 57 corresponds to one set of supporting structure 572, the supporting structures 572 are controlled to stretch and retract by cylinders, the transverse moving rack 571 can slide into the bottom of the storage rack 57 and can support the tray 55 at the bottom, the supporting structure 572 can extend into the lower part of the edge of the penultimate tray 55, and can support the tray 55 at the penultimate and above by the cooperation of the plurality of sets of supporting structures 572, at this time, the transverse moving rack 571 moves downwards to drive the tray 55 (penultimate tray 55) above the transverse moving rack to horizontally move out of the bottom of the storage rack 57, and when the tray 55 on the transverse moving rack 571 is transferred onto the lifter 58, the transverse moving rack 571 returns to the position right below the storage rack 57, and is capable of supporting the now lowermost tray 55 (the penultimate tray 55 described above) when moved upwardly, and each support structure 572 is retracted to support the edge of the now penultimate tray 55, such that the cycle moves each tray 55 in the stack out of the storage rack 57 in turn. In a preferred embodiment, the storage rack 57 is provided with a sensor, which is close to the bottom position of the storage rack 57 and is used for judging whether there is a tray 55 in the storage rack 57 or whether the number of trays 55 in the storage rack 57 is small, and when the detection requirement is met, the sensor gives an alarm outwards, and infrared/laser detection can be adopted for the sensor.

Further, the blanking station 5 further comprises a finished product conveying line 59, the finished product conveying line 59 is in butt joint with the conveying line 71, the finished product conveying line 59 is as high as the conveying line 71 and as high as the high point of the lifter 58, and the first manipulator 53 is located between the finished product conveying line 59 and the lifter 58. In this embodiment, the finished product transport line 59 is added and can be regarded as a cache line of the finished product reagent card, at the end of the transport line 71, the finished product reagent card on the transport line 71 can be transferred to the finished product transport line 59 for caching, and the first robot 53 can grab the finished product reagent card onto the corresponding tray 55 from the finished product transport line 59. In a preferred scheme, two finished product conveying lines 59 can be arranged, the two finished product conveying lines are arranged in parallel, the conveying line 71 is located between the two finished product conveying lines 59, the finished product conveying lines 59 are arranged at manual detection stations, on one hand, detection of finished product reagent cards can be facilitated, and on the other hand, the reagent cards in the trays 6 can be manually transferred to the finished product conveying lines 59 from the conveying lines.

The structure of the refined finished product conveying line 59 comprises a conveying belt 591, wherein a plurality of positioning grooves 592 are arranged on the conveying belt 591, the length direction of the positioning grooves 592 is the length extension direction of the finished product conveying line 59, the width dimension corresponds to the width of reagent cards, and the reagent cards are sequentially arranged along the length direction of the positioning grooves 592. The transport belt 591 is conveyed by a belt, after the reagent cards are placed in the positioning slots 592, the transport belt 591 can drive the reagent cards to move towards the direction close to the first manipulator 53, and one end of each reagent card close to the first manipulator 53 in the positioning slots 592 is closed, that is, when the reagent cards move to the closed position, the closed structure can block the reagent cards from moving continuously, relative sliding is generated between the reagent cards and the transport belt 591, at this time, the reagent cards reach the position where the finished product transport line 59 is closest to the first manipulator 53, and the first manipulator 53 can grab the reagent cards into the corresponding tray 55.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A film laser cutting method is characterized by comprising the following steps;

2. The laser cutting method of a film sheet as claimed in claim 1, wherein: the laser cutting line in the middle position is a No. 1 cutting line, the laser cutting lines positioned on one side of the No. 1 cutting line are odd laser cutting lines which are sequentially increased, and the laser cutting lines positioned on the other side of the No. 1 cutting line are even laser cutting lines which are sequentially increased.

3. The laser cutting method of a film as claimed in claim 1, wherein: when each laser cutting line is determined, the two edges of the product below the film are grabbed through the CCD camera, the angle mean value of the two edges is calculated, and the angle mean value is used as the angle of the corresponding laser cutting line.

4. The laser cutting method of a film as claimed in claim 1, wherein: the angle of the laser cutting line is determined stepwise to both sides by the laser cutting line in the middle position.

5. The laser cutting method of a film as claimed in claim 1, wherein: when the film is cut by laser, the edge of the film is pressed by the cover plate.

6. The laser cutting method of a film as claimed in claim 1, wherein: and collecting tailings generated after the membrane is cut into a waste membrane collecting box through a waste material taking sucker.

7. The laser cutting method of a film sheet as claimed in claim 1, wherein: when the laser cutting diaphragm is adopted, a cover body is arranged above the diaphragm, a first exhaust pipe is arranged on the cover body to extract smoke near the diaphragm, and a second exhaust pipe is adopted to extract smoke outside the cover body.

8. The utility model provides an automatic filling seals membrane production line, includes the frame, its characterized in that: a feeding station, a filling station, a film sealing station, a film cutting station and a blanking station are sequentially arranged on the frame, and a tray is sequentially moved along the stations through a conveying assembly, wherein the tray is a carrier of a film sealing product to be filled; the film cutting station cuts the film on the surface of the product after the film sealing by using the cutting method according to any one of claims 1 to 7.

9. The automatic filling and sealing production line of claim 8, wherein: and at the film sealing station, the film is fixed on the product in a heat sealing mode, and the product after heat sealing is cooled by cold compress.

10. The automatic filling and sealing production line of claim 9, wherein: the product gets rid of the comdenstion water on diaphragm surface through eliminating the subassembly after cold compress cooling, and gets into and cut the membrane station after getting rid of the comdenstion water.