CN114559751B

CN114559751B - Code spraying method

Info

Publication number: CN114559751B
Application number: CN202111321632.4A
Authority: CN
Inventors: 张国连; 潘俊; 孙新博; 周小明
Original assignee: Zhejiang Yuanjin Packaging Co ltd
Current assignee: Zhejiang Yuanjin Packaging Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-10-21
Anticipated expiration: 2041-11-09
Also published as: CN114559751A

Abstract

The application relates to a code spraying method, spray printing paper adapting to the code spraying method and a spray printing machine, comprising the following steps of: s1, detecting a piezoelectric nozzle; and S2, after the detection of the piezoelectric nozzle passes, placing the jet printing paper on a workbench of the jet printing machine in a width direction paper feeding mode, enabling the jet printing paper to move along the width direction of the jet printing paper, adjusting the piezoelectric nozzle of the jet printing machine, enabling the piezoelectric nozzle to start or stop the nozzle on the piezoelectric nozzle according to the width of each black bar of the bar code, and jet printing the bar code on the jet printing paper through the matching between the start and stop of the nozzle on the piezoelectric nozzle and the movement of the jet printing paper. This application has horizontal form feed of jet printing paper and makes the black strip of bar code all bar codes spout the seal in step when spouting the seal for but the bar code one shot forming when spouting the seal, compare in the independent of the black strip of bar code when vertical form feed spout the seal, the bar code spouts the seal speed during horizontal form feed faster, has improved the effect of spouting seal efficiency of bar code.

Description

Code spraying method

Technical Field

The application relates to the field of code spraying and printing, in particular to a code spraying method.

Background

In daily life, the application of identification codes becomes more and more common, and people can conveniently trade articles and identify and prevent counterfeiting through the identification codes.

Common identification codes include two-dimensional codes and bar codes, wherein the bar codes are identifiers in which a plurality of black bars and spaces with different widths are arranged according to a certain coding rule to express information, and the code spraying printing is usually performed in a large batch through a code sprayer.

In the conventional code-spraying printing at present, the conveying mode of the spray-printing paper is generally longitudinal paper feeding, namely the spray-printing paper is conveyed along the length direction of the spray-printing paper, and because the bar code is in a strip shape, in consideration of fully utilizing the paper area of the spray-printing paper, the length direction of the bar code is generally arranged along the length direction of the spray-printing paper during the spray-printing of the bar code, the spray head is in a rectangular shape, a plurality of nozzles are arranged on the spray head along the width direction of the bar code, the spray head moves along the length direction of the bar code during the code spraying, the nozzles with the specified number on the spray head are intermittently started to spray ink according to the width of each black bar of the bar code, and the bar code with the preset length and width can be sprayed on the spray-printing paper after the spray head completes one-time movement; and when the nozzle of the spray head is damaged to cause the nozzle to stop spraying ink or can not stop spraying ink, blank lines or continuous black lines can appear on the bar code after the spray printing is finished, a worker can conveniently detect the bar code of the spray printing, and the working condition of each nozzle in the spray head can be obtained in time.

However, with the development of the jet printing industry, the competition is increasingly intense, and in mass jet printing, the jet printing by the longitudinal paper feeding method has an obvious disadvantage that each black bar of one bar code needs to be independently jet printed by the nozzle, so that the nozzle needs to repeatedly work in a large amount, and further the jet printing efficiency of the nozzle is low.

Disclosure of Invention

In order to solve the problem that the efficiency of spraying bar codes by a spray head is lower by spraying in a longitudinal paper feeding mode, the application provides a code spraying method, spray printing paper adapting to the method and a spray printing machine.

In a first aspect, the code spraying method provided by the application adopts the following technical scheme:

a code spraying method comprises the following steps:

s1, detecting a piezoelectric nozzle;

and S2, after the detection of the piezoelectric nozzle passes, placing the jet printing paper on a workbench of the jet printing machine in a width direction paper feeding mode, enabling the jet printing paper to move along the width direction of the jet printing paper, adjusting the piezoelectric nozzle of the jet printing machine, enabling the piezoelectric nozzle to start or stop the nozzle on the piezoelectric nozzle according to the width of each black bar of the bar code, and jet printing the bar code on the jet printing paper through the matching between the starting and stopping of the nozzle on the piezoelectric nozzle and the movement of the jet printing paper.

Through adopting above-mentioned technical scheme, spout horizontal paper feed of seal paper and make the black strip of bar code when spouting seal spout the seal in step for bar code can one shot forming when spouting seal, spout the seal alone of the black strip of bar code when comparing in vertical paper feed, and bar code spouts seal speed when horizontal paper feed is very fast, has improved the efficiency of spouting seal of bar code.

Optionally, the detection of the piezojet in S1 is implemented by the following method: before the bar code is printed on the printing paper, the conveyor belt is started to drive the printing paper to move, all nozzles of the piezoelectric nozzle are started for a specified time, the conveyor belt stops after the specified time is reached, and the completeness of the nozzles of the nozzle is indirectly detected by detecting the completeness of the black detection strip printed on the printing paper.

Through adopting above-mentioned technical scheme, before spouting the seal bar code, at first spout the seal detection strip on spouting seal paper, when appearing the white line on the detection strip, reflect the nozzle on the piezojet and appear blocking phenomenon, need shut down the maintenance, compare in directly detecting the bar code, because the black strip width reduction range of bar code is less when the nozzle appears blockking up, it is difficult to carry out to detect, the detection of above-mentioned detection method is comparatively simple, and detect in advance and can effectively avoid printing out invalid bar code, make to spout the difficult extravagant phenomenon that appears of seal paper.

Alternatively, all the nozzles of the piezojet are activated simultaneously in the first half of the prescribed time and are deactivated simultaneously in the second half of the prescribed time.

By adopting the technical scheme, the spray nozzle stops spraying in the second half time, the second half part of the detection strip is colorless, if the colorless area of the detection strip has a black line, the phenomenon of out of control of the spray nozzle is indicated, the machine needs to be stopped for maintenance, and the reaction range of the detection strip on the health condition of the spray nozzle is further expanded.

The second aspect, this application provides a spout seal machine, spout seal machine includes the frame, the frame rotates to install and is used for driving the conveyer belt that spouts the seal paper motion, the feed end of frame is provided with the storage mechanism that is used for storing the seal paper, the frame still is provided with and is arranged in will storing the mechanism spout the seal paper and carry the feeding mechanism that the seal method spouts the seal is spouted to the above-mentioned cooperation on the conveyer belt.

Through adopting above-mentioned technical scheme, adopt above-mentioned spout the seal method to improve spout seal speed after, the tradition is by the mode of artifical last paper under the requirement of the faster last paper speed of needs, the phenomenon of the error of going up appears easily, through the cooperation between storage mechanism and the feed mechanism for be difficult for the error phenomenon of going up when going up paper, improved and spouted seal efficiency.

Optionally, the storage mechanism includes a material box installed on the frame, the material box has an upper opening and is in a cuboid shape matched with the jet printing paper, a horizontal support plate is installed in the material box in a sliding manner in a matching manner, the material box is provided with a support member for pushing the support plate to slide, the feeding mechanism includes a first rod installed on the frame above the material box and is vertical, the lower end of the first rod is rotatably installed with a second rod, the upper end of the first rod is rotatably installed with a third rod, the length of the second rod is smaller than that of the third rod, one end of the second rod, far away from the first rod, is rotatably installed with a fourth rod, the other end of the fourth rod is rotatably connected with the third rod, the sum of the lengths of the second rod and the fourth rod is not greater than that of the first rod and the third rod, the frame is provided with a driving member connected with the second rod, the frame is vertically slidably installed with an installation rod, a connecting rod is arranged between the installation rod and the third rod, the two ends of the connecting rod are rotatably connected with the installation rod and the third rod respectively, a vacuum sucker is arranged on the installation rod for grabbing the jet printing paper on the frame, and the vacuum conveying belt for grabbing the jet printing paper on the frame.

Through adopting above-mentioned technical scheme, first pole, second pole, third pole and fourth rod interconnect constitute crank rocker mechanism for vacuum chuck is when adsorbing jet printing paper, through crank rocker's quick return characteristic, realizes the action that descends fast and rise with slow speed, and then makes jet printing paper be difficult for appearing many together by the phenomenon of inhaling when breathing in, makes the jet printing paper of piling up in the material case be difficult for appearing in disorder phenomenon.

Optionally, support piece includes two bracing piece groups, two bracing piece group corresponds each other and all sets up the layer board with between the bottom of the case of material case, arbitrary bracing piece group all includes a plurality of bracing pieces that are parallel to each other, two bracing piece group corresponds two each other crisscross and rotate the connection each other between the bracing piece, two interconnect the bracing piece with the both ends of one side respectively with the layer board diapire with the material case diapire rotates to be connected, two interconnect all rotate on the both ends of the opposite side of bracing piece and install the slider, two the slider slides respectively and installs the layer board with on the diapire of material case, through rotate with the diapire of material case rotates to be connected the bracing piece is used for promoting the layer board slides, arbitrary with the material case diapire rotates to be connected the bracing piece with first pole transmission is connected.

Through adopting above-mentioned technical scheme, the layer board carries out vertical sliding through the bracing piece drive for the layer board is comparatively stable when the motion, simultaneously because the bracing piece is located the layer board below, makes the bracing piece be difficult for producing the oppression to spouting the seal paper on the layer board when the drive layer board slides, and then makes to spout the difficult phenomenons such as fold that appear of seal paper.

Optionally, arbitrary with the material case diapire rotate to be connected with on the bracing piece with the axis of rotation coaxial arrangement of bracing piece has driven gear, the frame rotates and installs first worm wheel, first worm wheel coaxial arrangement with driven gear meshing's incomplete gear, the frame rotate install with first worm wheel meshing's first worm, rotate in the frame and install the second worm, the second worm with the driving piece transmission is connected, coaxial arrangement has the second worm wheel on the first worm, the second worm wheel with the second worm meshes.

Through adopting above-mentioned technical scheme, the driving piece drives the second worm when driving the second pole pivoted and rotates, and then drive first worm wheel and incomplete gear revolve through second worm wheel and first worm, and then drive driven gear revolve and drive the bracing piece and rotate, and then promote the layer board and rise, because bracing piece and second pole all pass through the driving piece drive, make normal running fit between second pole and the bracing piece comparatively stable, the error phenomenon is difficult for appearing in the cooperation, self-locking function has between the worm wheel and the worm simultaneously, make the bracing piece difficult the gyration phenomenon that appears.

Optionally, the conveying piece is including installing the actuating cylinder that drives of installation pole lower extreme, the installation piece is installed in the sliding of installation pole lower extreme, the direction of sliding of installation piece and the width direction parallel of spouting seal paper and with the moving direction of conveyer belt is parallel, it is used for the drive to drive actuating cylinder the installation piece slides, vacuum chuck installs on the installation piece, the installation piece can drive spout seal paper and slide to the conveyer belt top.

Through adopting above-mentioned technical scheme, adsorb the jet printing paper on vacuum chuck and transported to conveyer belt feed end top back through the cooperation that drives between actuating cylinder and the installation piece, vacuum chuck stop the function, and jet printing paper is placed on the conveyer belt, and drives the comparatively fast and stable of actuating cylinder's motion, has improved the overall efficiency who spouts the seal machine.

Optionally, the conveyer belt top be provided with in the frame and be the horizontally spacing frame, the upper end of spacing frame is followed the profile direction of spacing frame is provided with the turn-up, the turn-up orientation deviates from the inside direction of spacing frame is convoluteed, spacing frame is used for right the follow spout that falls on the installation piece and print paper calibrates spacingly, the lower extreme of spacing frame with be provided with the clearance that is used for the paper feed between the roof of conveyer belt, be located conveyer belt direction of motion both sides all be provided with in the frame and be used for carrying out spacing limiting plate to spouting print paper.

Through adopting above-mentioned technical scheme, spacing frame is used for guiding to spout the printing paper and slides to the conveyer belt for spout that the printing paper falls in the position on the conveyer belt comparatively fixed, improved the accuracy of spouting the sign indicating number, spout the printing paper through turn-up guide simultaneously and fall into spacing frame and converge, make to spout the printing paper and be difficult for taking on spacing frame.

A jet printing paper comprises a paper body, wherein a detection part for jet printing the detection strip is arranged on one side of the paper body in the width direction.

By adopting the technical scheme, after the paper body is subjected to region division, when detection is carried out, the detection region on the paper body is fixed, so that the detection is rapid and stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the horizontal paper feed of jet printing paper makes the black stripes of all bar codes spout the seal in step when spouting the seal for the bar code can one shot forming when spouting the seal, spout the seal alone of the black stripe of bar code when comparing in vertical paper feed, and the bar code spouts seal speed faster when horizontal paper feed, has improved the efficiency of spouting the seal of bar code.

2. Before the bar code is sprayed and printed, half black and half black detection bars are firstly sprayed and printed on the spraying and printing paper, when a white line appears at a black part of the detection bar or a black line appears in a colorless area, the phenomenon that a nozzle on a piezoelectric nozzle is blocked or out of control is reflected, and the machine is required to be stopped for maintenance is reflected, compared with the method for directly detecting the bar code, the detection is difficult to carry out because the width reduction range of the black bar of the bar code is smaller when the nozzle is blocked, the detection is simpler, and the detection is carried out in advance, so that the invalid bar code can be effectively prevented from being printed, and the spraying and printing paper is difficult to waste;

3. after the paper body is subjected to region division, when detection is carried out, the detection region on the paper body is fixed, so that the detection is rapid and stable.

Drawings

Fig. 1 is a plan view of a paper body of the present application.

Fig. 2 is a schematic perspective view of the present application, in which the material tank is cut.

Fig. 3 is a schematic perspective view of the material tank according to the present application, in which the material tank is cut.

Fig. 4 is a schematic perspective view of the feeding mechanism of the present application, in which the material tank is cut.

Fig. 5 is a schematic perspective view of the printer of the present application.

Reference numerals: 1. a paper body; 11. a detection unit; 12. a test strip; 2. a frame; 21. a piezoelectric nozzle; 22. a conveyor belt; 3. a feeding mechanism; 31. a first lever; 32. a second lever; 33. a third lever; 34. a fourth bar; 35. a connecting rod; 36. a connecting shaft; 4. a storage mechanism; 41. a material box; 411. an upper opening; 42. a support plate; 43. a support member; 431. a set of support rods; 4311. a support bar; 432. a slider; 5. a drive motor; 6. mounting a rod; 61. fixing the rod; 62. mounting a plate; 63. a vacuum chuck; 7. a conveying member; 71. a driving cylinder; 72. mounting blocks; 8. a first worm; 81. a first worm gear; 82. a second worm; 83. a second worm gear; 84. an incomplete gear; 85. a driven gear; 9. a limiting frame; 91. and (6) curling.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

In a first aspect, an embodiment of the present application discloses a code spraying method.

The code spraying method comprises the following steps:

s1, detecting the piezoelectric nozzle 21.

S2, after the detection of the piezoelectric nozzle 21 is passed, the jet printing paper is placed on a workbench of the jet printing machine in a width direction paper feeding mode, the jet printing paper moves along the width direction of the jet printing paper, the piezoelectric nozzle 21 of the jet printing machine is adjusted, the piezoelectric nozzle 21 starts or stops nozzles on the piezoelectric nozzle 21 according to the width of each black bar of the bar code, and the bar code is jet printed on the jet printing paper through the matching between the starting and stopping of the nozzles on the piezoelectric nozzle 21 and the movement of the jet printing paper.

Referring to fig. 1, the inkjet printing paper includes a paper body 1, the paper body 1 is rectangular, and a rectangular detection unit 11 is provided on one side of the paper body 1 in the width direction.

The detection of the piezojet 21 in S1 is realized by the following method: the paper body 1 moves on an ink jet printer for jet printing bar codes along the width direction of the paper body, and when the paper body 1 is fed with paper, the detection part 11 firstly enters a jet printing part of the ink jet printer. When the detecting part 11 of the paper body 1 moves to the jet printing part of the jet printer, the nozzles of the nozzle of the jet printing part of the jet printer start to jet print on the paper body 1 for a predetermined time and stop for a predetermined time, and the black and white detecting strips 12 are formed at the jet printing position on the jet printing paper. Detecting the detection strip 12 through a detection mechanism, wherein the detection is carried out normally when no white line appears in a black area of the detection strip 12 and no black line appears in a white area of the detection strip 12; when the black area of the detection strip 12 appears a white line or the white area appears a black line, it indicates that the nozzle of the nozzle is blocked or the nozzle is not controlled, and the machine needs to be stopped to repair and maintain the nozzle.

Referring to fig. 2, in a second aspect, the present application provides an inkjet printer, which includes a frame 2 placed on the ground, a piezoelectric nozzle 21 for inkjet printing is disposed on the frame 2, and a conveyor belt 22 with an increased width adapted to the inkjet printing method is rotatably mounted on the frame 2. A storage mechanism 4 and a feeding mechanism 3 for feeding paper are arranged on the frame 2 at the feeding end of the conveyor belt 22,

referring to fig. 2 and 3, the storage mechanism 4 includes a rectangular parallelepiped material tank 41 fixedly installed at the feed end of the frame 2, and the material tank 41 has an upper opening 411. The material box 41 is internally provided with a horizontal supporting plate 42 in a matching and sliding manner, a supporting piece 43 is arranged between the supporting plate 42 and the bottom wall of the material box 41, the supporting piece 43 comprises two supporting rod groups 431, the two supporting rod groups 431 respectively comprise two supporting rods 4311 which are parallel to each other, and the four supporting rods 4311 of the two supporting rod groups 431 are corresponding to each other pairwise.

Referring to fig. 3 and 4, the middle portions of the two corresponding support rods 4311 of the two support rod groups 431 are hinged, one end of each of the four support rods 4311 on the same side, one end of each of the two support rods 4311 on the upper side, is rotatably connected to the bottom wall of the supporting plate 42, and one end of each of the two support rods 4311 on the lower side is rotatably connected to the bottom wall of the material tank 41. One end of each of the four support rods 4311 on the other side is rotatably provided with a sliding block 432, the rotating plane of each sliding block 432 is vertical, the two sliding blocks 432 on the upper side are slidably arranged on the bottom wall of the supporting plate 42, and the two sliding blocks 432 on the lower side are slidably arranged on the bottom wall of the material box 41. The supporting plate 42 is driven to slide vertically upwards by rotating the supporting rod 4311.

Referring to fig. 3 and 4, the feeding mechanism 3 includes a first rod 31 integrally disposed on the frame 2 above one end of the material tank 41 in the length direction, the first rod 31 is vertical, a third rod 33 and a second rod 32 are disposed at the upper end and the lower end of the first rod 31, the upper end of the first rod 31 is hinged to one end of the third rod 33, and the lower end of the first rod 31 is hinged to one end of the second rod 32. A fourth rod 34 is disposed between the second rod 32 and the third rod 33, the other end of the second rod 32 is hinged to one end of the fourth rod 34, and the other end of the third rod 33 is hinged to the other end of the fourth rod 34. The sum of the lengths of the second bar 32 and the fourth bar 34 is smaller than the sum of the lengths of the first bar 31 and the third bar 33, and the length of the third bar 33 is greater than the length of the second bar 32.

Referring to fig. 3 and 4, the first rod 31, the second rod 32, the third rod 33, and the fourth rod 34 are similarly mounted on the frame 2 above the other end of the material tank 41 in the longitudinal direction, and the two second rods 32 are coaxially and fixedly connected to each other by the connecting shaft 36.

Referring to fig. 3 and 4, the frame 2 is provided with a driving member, the driving member includes a driving motor 5 fixedly mounted on the frame 2, and an output shaft of the driving motor 5 is coaxially and fixedly connected with any one of the second rods 32. The rack 2 above the material box 41 is vertically provided with a horizontal installation rod 6 in a sliding manner, the third rod 33 is provided with a connecting rod 35, and two ends of the connecting rod 35 are hinged to one end, far away from the first rod 31, of the third rod 33 and one end of the installation rod 6.

Referring to fig. 3 and 5, a fixing rod 61 is fixedly mounted on the mounting rod 6, one end of the fixing rod 61 is connected with the mounting rod 6, and the other end of the fixing rod 61 extends to a position right above the material tank 41. Dead lever 61 is kept away from one of installing pole 6 and is served fixed mounting and be vertical mounting panel 62, be provided with conveying piece 7 on the mounting panel 62, conveying piece 7 includes two drive cylinder 71 that fixed mounting deviates from the one side of conveyer belt 22 at mounting panel 62, be provided with on the mounting panel 62 and be horizontally rectangle installation piece 72, the flexible direction of the piston rod that drives cylinder 71 is the level and is parallel with the direction of transfer of conveyer belt 22, the one end of the piston rod that drives cylinder 71 slides and passes mounting panel 62 and the installation and quarrel fixed connection, installation piece 72 slides through drive cylinder 71 and installs on mounting panel 62.

Referring to fig. 3 and 4, a second worm 82 is integrally arranged on an output shaft of the driving motor 5, a second worm wheel 83 meshed with the second worm 82 is arranged on the rack 2 in a rotating rod shape, a first worm 8 is coaxially and fixedly installed on the second worm wheel 83, a first worm wheel 81 meshed with the first worm 8 is rotatably installed on the rack 2, an incomplete gear 84 is coaxially and fixedly installed on the first worm wheel 81, a driven gear 85 meshed with the incomplete gear 84 is coaxially and fixedly installed on a supporting rod 4311 rotatably connected with the bottom wall of the material box 41, and when the driving motor 5 is started, the incomplete gear 84 is driven to rotate, so that the driven gear 85 and the supporting rod 4311 are driven to rotate to drive the supporting plate 42 to move.

Referring to fig. 3 and 5, when the driving motor 5 is started, the crank-link mechanism composed of the first rod 31, the second rod 32, the third rod 33, and the fourth rod 34 drives the mounting rod 6 and the mechanism on the mounting rod 6 to vertically slide back and forth through the connecting rod 35. Two vacuum chucks 63 for adsorbing the jet printing paper are fixedly installed on the installation block 72, and when the installation rod 6 slides to the lowest end, the vacuum chucks 63 are attached to the paper tightly supported on the supporting plate 42 and then started to adsorb the jet printing paper on the installation block 72. When the mounting rod 6 slides to the highest point, the driving cylinder 71 is started to push the mounting block 72 and the jet printing paper to the feeding end of the conveyor belt 22.

When the driving motor 5 works, the driving motor 5 drives the driven gear 85 and the supporting rod 4311 to rotate through the incomplete gear 84, the supporting plate 42 is pushed to vertically slide upwards to compensate for the height difference left over after the jet printing paper is output, the vacuum chuck 63 can always move to the joint to tightly abut against the jet printing paper when the vacuum chuck 63 absorbs the jet printing paper on the supporting plate 42, and the vacuum chuck 63 is not easy to fail when absorbing the jet printing paper.

Referring to fig. 2, a horizontal rectangular limiting frame 9 is fixedly mounted on the frame 2 at the feed end of the conveyor belt 22, a turned edge 91 is integrally wound on the upper side of the side wall of the limiting frame 9 towards the direction deviating from the inside of the limiting frame 9, and a gap for paper feeding is formed between the lower side of the side wall of the limiting frame 9 and the conveyor belt 22. When the vacuum chuck 63 stops, the jet printing paper falls to the standard position on the conveyor belt 22 along the limiting frame 9, so that the jet printing paper is not easy to deviate when falling, and the jet printing accuracy is improved.

The implementation principle of the jet printing machine in the embodiment of the application is as follows: spout the seal paper and put things in good order on layer board 42, when going on going up paper, driving motor 5 starts to drive second pole 32 and rotates, and then drives third pole 33 reciprocating motion and drives installation pole 6 and the vertical reciprocal slip of mechanism on it, vacuum chuck 63 on the installation pole 6 will spout the seal paper and adsorb back on installation piece 72, when installation pole 6 slides to the highest point, drive actuating cylinder 71 and start and will spout the seal paper and transport to spacing frame 9 top, will spout through spacing frame 9 and accomplish after the assigned position that the seal paper guided to conveyer belt 22 and go up paper.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A code spraying method comprises the following steps:

s1, detecting a piezoelectric nozzle (21);

s2, after the detection of the piezoelectric nozzle (21) is passed, placing the jet printing paper on a workbench of the jet printing machine in a width direction paper feeding mode, enabling the jet printing paper to move along the width direction of the jet printing paper, adjusting the piezoelectric nozzle (21) of the jet printing machine, enabling the piezoelectric nozzle (21) to start or stop a nozzle on the piezoelectric nozzle (21) according to the width of each black bar of the bar code, and jet printing the bar code on the jet printing paper through the matching between the starting and stopping of the nozzle on the piezoelectric nozzle (21) and the movement of the jet printing paper; the detection of the piezoelectric nozzle (21) in the S1 is realized by the following method: before the bar code is printed on the jet printing paper, the conveyor belt (22) is started to drive the jet printing paper to move, simultaneously, all nozzles of the piezoelectric nozzle (21) are started for a set time, after the set time is up, the conveyor belt (22) stops, and the completeness of the nozzles of the nozzle is indirectly detected by detecting the completeness of the black detection bar (12) printed on the jet printing paper; all the nozzles of the piezoelectric nozzle (21) are started simultaneously within the first half of the specified time and stopped simultaneously within the second half of the specified time; the jet printing paper in the S2 comprises a paper body (1), and a detection part (11) for jet printing a detection strip (12) is arranged on one side of the paper body (1) in the width direction;

s2 spout seal machine and include frame (2), frame (2) are rotated and are installed and are used for driving conveyer belt (22) that spout the printing paper motion, its characterized in that: the machine frame (2) is provided with a storage mechanism (4) for spraying the printing paper at the feeding end, and the machine frame (2) is also provided with a feeding mechanism (3) for conveying the spraying paper in the storage mechanism (4) to the conveyor belt (22) to match with the code spraying method for code spraying; the storage mechanism (4) comprises a material box (41) installed on the rack (2), the material box (41) is provided with an upper opening (411), the material box (41) is in a cuboid shape matched with jet printing paper, a horizontal supporting plate (42) is installed in the material box (41) in a matching and sliding mode, the material box (41) is provided with a supporting piece (43) used for pushing the supporting plate (42) to slide, the feeding mechanism (3) comprises a first vertical rod (31) installed on the rack (2) above the material box (41), the lower end of the first rod (31) is rotatably installed with a second rod (32), the upper end of the first rod (31) is rotatably installed with a third rod (33), the length of the second rod (32) is smaller than the third rod (33), the second rod (32) is far away from one end of the first rod (31) and is rotatably installed with a fourth rod (34), the other end of the fourth rod (34) is rotatably connected with the third rod (33), the second rod (32) is rotatably installed with the second rod (32), the length of the second rod (32) is connected with a driving piece (6), and the length of the driving piece (32) is not greater than the sum of the third rod (32), a connecting rod (35) is arranged between the mounting rod (6) and the third rod (33), two ends of the connecting rod (35) are respectively rotatably connected with the mounting rod (6) and the third rod (33), a vacuum chuck (63) for grabbing jet printing paper is arranged on the mounting rod (6), a conveying member (7) for conveying a single piece of jet printing paper grabbed by the vacuum chuck (63) to the conveyor belt (22) is arranged on the rack (2), the conveying member (7) comprises a driving cylinder (71) arranged at the lower end of the mounting rod (6), a mounting block (72) is arranged at the lower end of the mounting rod (6) in a sliding manner, the sliding direction of the mounting block (72) is parallel to the width direction of the jet printing paper and the moving direction of the conveyor belt (22), the driving cylinder (71) is used for driving the mounting block (72) to slide, the vacuum chuck (63) is arranged on the mounting block (72), and the mounting block (72) can drive the jet printing paper to slide above the conveyor belt (22); the driving piece comprises a driving motor (5) fixedly mounted on the rack (2), an output shaft of the driving motor (5) is coaxially and fixedly connected with any one of the second rods (32), and after the driving motor (5) is started, a crank-link mechanism composed of the first rod (31), the second rod (32), the third rod (33) and the fourth rod (34) drives the mounting rod (6) and mechanisms on the mounting rod (6) to vertically slide back and forth through the connecting rod (35); when the mounting rod (6) slides to the lowest end, the vacuum chuck (63) is tightly attached to paper on the supporting plate (42) and then starts to adsorb the jet printing paper on the mounting block (72), and when the mounting rod (6) slides to the highest point, the driving air cylinder (71) starts to push the mounting block (72) and the jet printing paper to the feeding end of the conveyor belt (22).

2. A code-spraying method according to claim 1, characterized in that: the support piece (43) comprises two support rod sets (431), the two support rod sets (431) correspond to each other and are arranged between the supporting plate (42) and the bottom of the material box (41), any support rod set (431) comprises a plurality of support rods (4311) which are parallel to each other, the two support rod sets (431) correspond to each other, the two support rods (4311) are staggered and rotatably connected with each other, two ends of the same side of the two support rods (4311) which are connected with each other are respectively rotatably connected with the bottom wall of the supporting plate (42) and the bottom wall of the material box (41), two sliders (432) are rotatably mounted at two ends of the other side of the two support rods (4311) which are connected with each other, the two sliders (432) are slidably mounted on the bottom walls of the supporting plate (42) and the material box (41), the support rods (4311) which are rotatably connected with the bottom wall of the material box (41) through rotation are used for pushing the supporting plate (42) to slide, and any one support rod (431) which is rotatably connected with the bottom wall of the material box (41) is connected with the transmission rod (4311) and the first transmission rod (31).

3. A code-spraying method according to claim 2, characterized in that: arbitrary with material case (41) diapire rotate to be connected bracing piece (4311) go up with the axis of rotation coaxial arrangement of bracing piece (4311) has driven gear (85), frame (2) rotate and install first worm wheel (81), first worm wheel (81) coaxial arrangement with incomplete gear (84) of driven gear (85) meshing, frame (2) rotate install with first worm (8) of first worm wheel (81) meshing, rotate on frame (2) and install second worm (82), second worm (82) with the driving piece transmission is connected, coaxial arrangement has second worm wheel (83) on first worm (8), second worm wheel (83) with second worm (82) meshing.

4. A code spraying method according to claim 3, wherein: conveyer belt (22) top be provided with in frame (2) and be horizontally spacing frame (9), the upper end of spacing frame (9) is followed the profile direction of spacing frame (9) is provided with turn-up (91), turn-up (91) orientation deviates from spacing frame (9) inside direction is convoluteed, spacing frame (9) are used for right the follow jet printing paper that falls down on installation piece (72) calibrates spacingly, the lower extreme of spacing frame (9) with be provided with the clearance that is used for the paper feed between the roof of conveyer belt (22), be located conveyer belt (22) direction of motion both sides all be provided with in frame (2) and be used for carrying out spacing limiting plate to jet printing paper.