CN112172365A - Screen printing method - Google Patents
Screen printing method Download PDFInfo
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- CN112172365A CN112172365A CN202011060390.3A CN202011060390A CN112172365A CN 112172365 A CN112172365 A CN 112172365A CN 202011060390 A CN202011060390 A CN 202011060390A CN 112172365 A CN112172365 A CN 112172365A
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- printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/14—Forme preparation for stencil-printing or silk-screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/16—Printing tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/0443—Drying sheets, e.g. between two printing stations after printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Screen Printers (AREA)
Abstract
The invention discloses a screen printing method, which relates to the technical field of screen printing and comprises the following steps: preparing a photosensitive resist, standing the photosensitive resist for 2-3 hours at the temperature of 30-35 ℃, vibrating the photosensitive resist by using a vibrating rod every other hour, and putting a defoaming agent into the photosensitive resist during vibration, wherein the second step is as follows: manufacturing a screen printing plate through a direct plate making method, and installing the screen printing plate into a printing device after the screen printing plate is manufactured, wherein the third step is as follows: debugging printing device, printing device includes the processing platform, the printing groove has been seted up to one side of processing bench surface, and the opposite side fixedly connected with stoving case of processing bench surface. The printing device is provided with three groups of processing plates, the three groups of processing plates can sequentially drive paper to rotate at a printing part, a drying part and a material taking part in the printing device, so that the drying step can be automatically completed after printing is completed, and the three groups of processing plates sequentially rotate among the printing tank, the drying box and the discharge hole.
Description
Technical Field
The invention relates to the technical field of screen printing, in particular to a screen printing method.
Background
The silk screen printing refers to that a silk screen is used as a plate base, and a silk screen printing plate with pictures and texts is manufactured by a photosensitive plate making method. The screen printing is composed of five major elements, namely a screen printing plate, a scraper, ink, a printing table and a printing stock. The basic principle that the meshes of the image-text part and the non-image-text part of the screen printing plate are permeable to ink and impermeable to ink is utilized to print. When printing, ink is poured into one end of the screen printing plate, a scraper plate is used for applying a certain pressure to the ink position on the screen printing plate, meanwhile, the scraper plate moves towards the other end of the screen printing plate at a constant speed, and the ink is extruded onto a printing stock from meshes of the image-text part by the scraper plate in the moving process.
Chinese patent discloses a screen printing method (publication No. CN104309345A), which substantially comprises the method steps of preparing a photosensitive resist, preparing the photosensitive resist, transferring the photosensitive resist to a temporary soft substrate, exposing, developing, preparing a screen printing plate, transferring the screen, examining, testing and printing, and the like, and detailed method improvement is performed on the basis of the method steps.
In current screen printing, the time of stewing of photosensitive emulsion is longer, lead to increasing the operating time length of printing, and photosensitive emulsion is when stewing, and its inside bubble is inconvenient to be spilled over, lead to can reducing the quality of printing when subsequent printing, and printing device in current screen printing simultaneously, inconvenient paper size according to actual printing adjusts, and mechanization and degree of automation are lower, after the printing is accomplished, inconvenient drying process to the paper, need the staff to shift the paper to drying device in, can increase staff's intensity of labour.
Disclosure of Invention
In order to overcome the technical problems that in the existing screen printing, the standing time of the photosensitive emulsion is long, the working time of printing is prolonged, bubbles in the photosensitive emulsion are inconvenient to overflow when the photosensitive emulsion is standing, the printing quality is reduced when the photosensitive emulsion is printed subsequently, meanwhile, a printing device in the existing screen printing is inconvenient to adjust according to the size of paper printed actually, the mechanization and automation degree is low, after the printing is finished, the paper is inconvenient to dry, a worker needs to transfer the paper into the drying device, and the labor intensity of the worker is increased, the invention aims to provide a screen printing method.
The purpose of the invention can be realized by the following technical scheme:
a screen printing method comprising the steps of:
the method comprises the following steps: preparing a photosensitive emulsion, placing the photosensitive emulsion in an environment of 30-35 ℃ for standing for 2-3 hours, vibrating the photosensitive emulsion by using a vibrating rod every other hour, and putting a defoaming agent into the photosensitive emulsion during vibration, wherein the weight ratio of the photosensitive emulsion to the defoaming agent is 100: 1;
step two: manufacturing a screen plate by a direct plate making method, and installing the screen plate into a printing device after the screen plate is manufactured;
step three: debugging a printing device, fixing paper to be printed into the printing device, and manually printing water-based foaming ink on the paper from the hollow part of the screen plate by using a screen printing machine scraper;
step four: moving the printed paper into a drying device in a printing device, and printing new paper while drying the paper;
step five: repeating the step four to dry and print the new paper, taking the dried paper out of the printing device, cooling and forming;
step six: and detecting the printed paper, and storing the paper qualified in detection and properly placing the paper.
As a further scheme of the invention: the paper detection adopts one or two mixed detection methods of manual quality inspection or image recognition device detection, and unqualified paper is detected to be uniformly destroyed and recycled to be made into recycled paper.
As a further scheme of the invention: the printing device comprises a processing table, wherein a printing groove is formed in one side of the upper surface of the processing table, a drying box is fixedly connected to the other side of the upper surface of the processing table, the printing groove and the drying box are communicated with the processing table, a ventilation box is fixedly connected to the upper surface of the drying box, a screw rod driving frame is fixedly connected to one side, close to the printing groove, of the upper surface of the processing table, a sliding frame is fixedly connected to the other side, close to the printing groove, of the upper surface of the processing table, clamping devices are respectively installed on one sides, facing the printing groove, of the screw rod driving frame and the sliding frame, and a printing silk screen device is clamped between the two groups of clamping;
the inner part of the processing table is fixedly connected with a reinforcing frame, the inner part of the reinforcing frame is rotatably connected with a rotating table, one side of the inner part of the reinforcing frame, which is close to the rotating table, is fixedly connected with a driving motor, the bottom end of the rotating table is rotatably connected with the processing table, the side wall of the rotating table is meshed with the output end of the driving motor through two groups of gears, the upper surface of the rotating table is provided with three groups of processing plates, the middle of the lower surface of each processing plate is fixedly connected with a hydraulic rod between the rotating table, and the two sides of the lower surface of each processing plate are fixedly connected with telescopic rods between the rotating table;
three groups the processing board is in the upside evenly distributed of revolving stage, and each contained angle between the processing board is 120, processing platform upper surface has been close to one side of printing groove and stoving case and has been seted up the discharge gate, printing groove, stoving case and discharge gate are located three positive upsides of group's processing board moving trajectory, and the contained angle between printing groove, stoving case and the discharge gate is 120, the size of printing groove and stoving case and processing platform intercommunication is the same with the processing plate size, and the size of discharge gate is greater than the processing plate size.
As a further scheme of the invention: two sets of the holder all includes the connecting box, the upper surface threaded connection of connecting box has the locking bolt, and one side fixedly connected with electric telescopic handle of connecting box, electric telescopic handle's one end fixedly connected with connecting plate, and electric telescopic handle's surface cover is equipped with the support frame with connecting plate fixed connection, one side fixedly connected with connecting plate of connecting plate is a set of the holder passes through the lead screw threaded connection in lagging and the lead screw drive frame, and another group the holder passes through lagging and carriage sliding connection.
As a further scheme of the invention: printing silk screen ware includes two sets of folding tubes, and is two sets of equal spiro union has the silk screen receiver between the both ends of folding tube, folding tube is all including accomodating pipe and slip pipe, slip pipe sliding connection is in the inside of accomodating the pipe, and the spout has been seted up to the inside of slip pipe, it has connecting bolt, two sets of to accomodate the equal fixedly connected with silk screen fixer in inboard of pipe and slip pipe between pipe and the spout.
As a further scheme of the invention: the inside of silk screen receiver is rotated and is connected with the live-rollers, and one side of silk screen receiver has seted up the opening, the opposite side of silk screen receiver articulates through the hinge has sealed lid, and the silk screen receiver is inside to be close to the first reset spring of the equal fixedly connected with in open-ended upper and lower both sides, the equal fixedly connected with spacing roller of one end that silk screen receiver inner wall was kept away from to first reset spring, the groove of accomodating has all been seted up to the both sides of live-rollers surface, and the outside at live-rollers both ends pivot position all overlaps and is equipped with coil spring, coil spring's both ends are respectively in live-rollers and.
As a further scheme of the invention: the silk screen fixer includes fixed plate and fly leaf, the equal fixedly connected with second reset spring in both ends of fixed plate and fly leaf, and the equal fixedly connected with gag lever post in one side that the fixed plate lower surface is close to second reset spring, the fly leaf is all run through to the bottom of gag lever post, the upper surface of fly leaf rotates and is connected with the slip zone, and the fly leaf upper surface is close to the inboard in slip zone and the lower surface of fixed plate and has all seted up the draw-in groove, and is two sets of the draw-in groove is in same vertical direction.
As a further scheme of the invention: the both ends of half tone run through the opening of silk screen receiver respectively, and the both ends of half tone are connected with two sets of live-rollers adhesion respectively, the equal adhesion in both sides of half tone is connected with the joint spare of "worker" font, and inside the joint spare of half tone both sides sliding connection is inside the draw-in groove in the silk screen fixer of both sides respectively.
As a further scheme of the invention: the ventilation box is communicated with the drying box, and the air outlet of the ventilation box is communicated with an external waste treatment device through a flange.
As a further scheme of the invention: the working steps of the printing device are as follows: the two groups of screen storage boxes are respectively screwed to two sides of the folding pipe, then the screen printing plate is drawn out from one group of screen storage boxes, then a fixed plate and a movable plate of each screen fixer are unfolded by stretching a second reset spring, clamping pieces on two sides of the screen printing plate are sequentially embedded into each clamping groove, then the movable plate is loosened, the clamping pieces are meshed and connected by using the elasticity of the second reset spring, then the other end of the screen printing plate penetrates through an opening of the other screen storage box, a rotating roller in the screen storage box is rotated for 4-5 circles, the spiral springs on two sides are tightly driven, and finally the screen printing plate is adhered and connected with the rotating roller;
loosening the connecting bolts, stretching the accommodating pipes and the sliding pipes in the folding pipes, unfolding the screen printing plates, restoring the accommodating pipes and the sliding pipes, respectively rolling a part of screen printing plates by the two groups of rotating rollers, repeating the steps for 2-3 times, uniformly accommodating the screen printing plates outside the two groups of rotating rollers, sliding the screen printing plates under the driving of the sliding belts when the screen printing plates are pulled, finally adjusting the folding pipes, and then screwing the connecting bolts;
one end of the printing silk screen device is embedded into the connecting boxes of one group of the clamping devices, then the locking bolts are screwed down to fix the printing silk screen device, then the electric telescopic rods in the two groups of the clamping devices are started to change the distance between the two clamping devices, the other end of the printing silk screen device is embedded into the other connecting box, and finally the other locking bolt is screwed down to fix the printing silk screen device;
starting a hydraulic rod, extending a processing plate into a printing tank, laying paper on the upper side of the processing plate, starting a screw rod driving frame to drive a clamp holder and a printing screen printer to descend to the upper side of the paper along a sliding frame, manually printing water-based foaming ink on the paper from the hollowed part of a screen printing plate by using a screen printer scraper, starting the screw rod driving frame again to drive the clamp holder and the printing screen printer to separate the paper, starting the hydraulic rod to drive the paper into the processing table, starting a driving motor to drive a rotating table to rotate through two groups of gears in meshed connection, closing the driving motor after driving the processing plate and the paper to the lower side of a drying box, simultaneously starting the hydraulic rods positioned on the lower sides of the printing tank and the drying box, driving a new processing plate to ascend into the printing tank by using the hydraulic rod of the printing tank, and then repeating the steps to process the new paper, the paper that the hydraulic stem of stoving case downside drove after another processing board and the printing rises, starts the heating member of stoving incasement portion afterwards and dries the paper, after printing and stoving technology all accomplished, starts two sets of hydraulic stems and drives two sets of processing boards and descend, starts driving motor afterwards, and three hydraulic stem of restart, the processing board of printing groove and stoving case downside can repeat above-mentioned step and print and dry, take out the paper on the processing board of discharge gate downside and detect can.
The invention has the beneficial effects that:
1. the printing device is provided with the three groups of processing plates, paper can be sequentially driven to rotate at the printing part, the drying part and the material taking part in the printing device, so that the drying step can be automatically completed after printing is completed, the three groups of processing plates can be driven to sequentially rotate among the printing groove, the drying box and the material outlet when the rotating platform rotates, the operation and the control are convenient, the automation and the mechanization degree are high, a worker only needs to complete the printing and the material taking, and the labor intensity of the worker can be reduced.
2. According to the invention, the length of screen printing can be changed by adjusting the holder of the printing device and the printing screen device, so that the printing screen device can adapt to paper with different lengths, and after the screen printing plate is installed in the printing screen device, the use is more convenient and quicker, during printing, the screen printing plate is more convenient to contact with the paper, after printing, the screen printing plate is conveniently separated from the paper and can be accommodated into two sets of screen accommodating boxes, and meanwhile, the reset component is arranged in each screen accommodating box, so that the problem that the screen printing plate is loosened or the tension is increased after being used for a long time can be prevented, the service life of the screen printing plate can be prolonged, and the printing quality can be improved.
3. The invention adds a vibrating step and a defoaming agent, and can vibrate bubbles in the photosensitive adhesive through the vibrating step, thereby greatly reducing the standing time of the photosensitive adhesive, improving the quality of the bubbles in the photosensitive adhesive, improving the printing quality, and reducing the foams generated on the surface of the photosensitive adhesive due to vibration through the defoaming agent.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a processing station and drying box of the present invention;
FIG. 3 is a cross-sectional view of a holder according to the present invention;
FIG. 4 is an enlarged view of the construction of the printing screen unit of the present invention;
FIG. 5 is a cross-sectional view of a wire mesh storage cassette of the present invention;
FIG. 6 is a partial front view of the turning roll of the present invention;
FIG. 7 is an enlarged view of the construction of the wire mesh holder of the present invention;
fig. 8 is an enlarged view of the structure of portion a of fig. 7 according to the present invention.
In the figure: 1. a processing table; 2. printing a slot; 3. a drying box; 4. a ventilation box; 5. a screw rod driving frame; 6. a carriage; 7. a holder; 8. printing a silk screen device; 9. a reinforcing frame; 10. a rotating table; 11. processing a plate; 12. a hydraulic lever; 13. a telescopic rod; 14. a drive motor; 71. a connection box; 72. locking the bolt; 73. an electric telescopic rod; 74. a connecting plate; 75. a support frame; 76. sheathing; 81. folding the tube; 82. a wire mesh storage box; 83. a wire mesh holder; 811. receiving a tube; 812. a sliding tube; 813. a chute; 814. a connecting bolt; 821. a rotating roller; 822. a limiting roller; 823. a first return spring; 824. a receiving groove; 825. a coil spring; 831. a fixing plate; 832. a movable plate; 833. a sliding belt; 834. a second return spring; 835. a card slot; 836. a limiting rod.
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. 1-8, a screen printing method includes the following steps:
the method comprises the following steps: preparing a photosensitive emulsion, placing the photosensitive emulsion in an environment of 35 ℃ for standing for 3 hours, vibrating the photosensitive emulsion by using a vibrating rod every other hour, and putting a defoaming agent into the photosensitive emulsion during vibration, wherein the weight ratio of the photosensitive emulsion to the defoaming agent is 100: 1;
step two: manufacturing a screen plate by a direct plate making method, and installing the screen plate into a printing device after the screen plate is manufactured;
step three: debugging a printing device, fixing paper to be printed into the printing device, and manually printing water-based foaming ink on the paper from the hollow part of the screen plate by using a screen printing machine scraper;
step four: moving the printed paper into a drying device in a printing device, and printing new paper while drying the paper;
step five: repeating the step four to dry and print the new paper, taking the dried paper out of the printing device, cooling and forming;
step six: the printed paper is detected by an image recognition device, the qualified paper is stored and properly placed, and the unqualified paper is detected and uniformly destroyed and is recovered to be made into recycled paper.
The image recognition apparatus can employ patent publication nos.: the same way and structure as in CN 110431562A.
The invention adds a vibrating step and a defoaming agent, and can vibrate bubbles in the photosensitive glue through the vibrating step, thereby greatly reducing the standing time of the photosensitive glue, simultaneously improving the quality of the bubbles in the photosensitive glue, and further improving the printing quality.
Referring to fig. 1-2, the printing apparatus includes a processing table 1, a printing slot 2 is formed on one side of the upper surface of the processing table 1, a drying box 3 is fixedly connected to the other side of the upper surface of the processing table 1, the printing slot 2 and the drying box 3 are both communicated with the processing table 1, a ventilation box 4 is fixedly connected to the upper surface of the drying box 3, a screw rod driving frame 5 is fixedly connected to one side of the upper surface of the processing table 1, which is close to the printing slot 2, a sliding frame 6 is fixedly connected to the other side of the upper surface of the processing table 1, which is close to the printing slot 2, clamping devices 7 are respectively installed on one sides of the screw rod driving frame 5 and the sliding frame 6, which face the printing slot 2, and a printing silk screen device 8;
the inner part of the processing table 1 is fixedly connected with a reinforcing frame 9, the inner part of the reinforcing frame 9 is rotatably connected with a rotating table 10, one side of the inner part of the reinforcing frame 9, which is close to the rotating table 10, is fixedly connected with a driving motor 14, the bottom end of the rotating table 10 is rotatably connected with the processing table 1, the side wall of the rotating table 10 is connected with the output end of the driving motor 14 through two groups of gears in a meshing way, the upper surface of the rotating table 10 is provided with three groups of processing plates 11, the middle of the lower surface of the processing plates 11 is fixedly connected with a hydraulic rod 12 between the rotating table 10, the inner part of the hydraulic rod 12 is provided with a bidirectional gear, an oil circuit manifold block, an oil cylinder and a piston rod, the working principle of the hydraulic rod 12 is that a bidirectional gear pump outputs pressure oil, the oil is controlled to the oil cylinder by the oil circuit block to drive the piston rod to move, telescopic, and two groups of columnar components are respectively fixedly screwed with the rotating table 10 and the corresponding processing plates 11;
the three groups of processing plates 11 are uniformly distributed on the upper side of the rotating table 10, the included angle among the processing plates 11 is 120 degrees, the upper surface of the processing table 1 is provided with a discharge port at one side close to the printing groove 2 and the drying box 3, the printing groove 2, the drying box 3 and the discharge port are positioned at the right upper side of the moving track of the three groups of processing plates 11, the included angle among the printing groove 2, the drying box 3 and the discharge port is 120 degrees, the size of the communication between the printing groove 2 and the drying box 3 and the processing table 1 is the same as that of the processing plates 11, the size of the discharge port is larger than that of the processing plates 11, the ventilation box 4 is communicated with the drying box 3, and the air outlet of the ventilation box 4 is communicated with an external waste treatment device through a flange, the printing device is provided with the three groups of processing plates 11, the printing device can sequentially drive the printing part, the drying part and the material taking part of paper in the printing, and the revolving stage can drive three groups of processing boards to rotate in proper order between printing groove, stoving case and discharge gate when rotating, controls the convenience to degree of automation and mechanization is high, the staff only need accomplish print with get material two can, can reduce staff's intensity of labour.
Referring to fig. 3, two groups of grippers 7 each include a connection box 71, the upper surface of the connection box 71 is connected with a locking bolt 72 through a thread, one side of the connection box 71 is fixedly connected with an electric telescopic rod 73, the electric telescopic rod 73 is of an XTL100 type, one end of the electric telescopic rod 73 is fixedly connected with a connection plate 74, the outer surface of the electric telescopic rod 73 is sleeved with a support frame 75 fixedly connected with the connection plate 74, one side of the connection plate 74 is fixedly connected with the connection plate 74, one group of grippers 7 is connected with a screw rod in the screw rod driving frame 5 through a sleeve plate 76 through a thread, and the other group of grippers 7 is connected with the sliding frame 6 through.
Referring to fig. 4, the printing screen device 8 includes two groups of folding pipes 81, a screen storage box 82 is screwed between two ends of the two groups of folding pipes 81, the folding pipes 81 include a storage pipe 811 and a sliding pipe 812, the sliding pipe 812 is slidably connected inside the storage pipe 811, a sliding groove 813 is formed inside the sliding pipe 812, a connecting bolt 814 is connected between the storage pipe 811 and the sliding groove 813 in a penetrating manner, and screen retainers 83 are fixedly connected to inner sides of the storage pipe 811 and the sliding pipe 812.
As shown in fig. 5 to 6, the inside of the screen storage box 82 is rotatably connected with a rotating roller 821, one side of the screen storage box 82 is provided with an opening, the other side of the screen storage box 82 is hinged with a sealing cover through a hinge, the inside of the screen storage box 82 is fixedly connected with first return springs 823 close to the upper and lower sides of the opening, one ends of the first return springs 823 far away from the inner wall of the screen storage box 82 are fixedly connected with limit rollers 822, both sides of the outer surface of the rotating roller 821 are provided with storage grooves 824, the outer sides of the rotating shaft parts at both ends of the rotating roller 821 are respectively sleeved with a coil spring 825, and both ends of the coil spring 825 are respectively fixedly connected with the rotating roller 821.
Referring to fig. 7-8, the screen fixer 83 includes a fixing plate 831 and a movable plate 832, two ends of the fixing plate 831 and the movable plate 832 are both fixedly connected with a second return spring 834, one side of the lower surface of the fixing plate 831, which is close to the second return spring 834, is both fixedly connected with a limiting rod 836, bottom ends of the limiting rod 836 penetrate through the movable plate 832, an upper surface of the movable plate 832 is rotatably connected with a sliding belt 833, inner sides of the upper surface of the movable plate 832, which is close to the sliding belt 833, and the lower surface of the fixing plate 831 are both provided with a slot 835, and the two sets of slots 835 are in. The both ends of half tone run through the opening of silk screen receiver 82 respectively, and the both ends of half tone are connected with two sets of rotating rollers 821 adhesion respectively, and the equal adhesion in both sides of half tone is connected with the joint spare of "worker" font, and the joint spare of half tone both sides is inside draw-in groove 835 of sliding connection in the silk screen fixer 83 of both sides respectively.
According to the invention, the length of screen printing can be changed by adjusting the holder 7 and the printing screen device 8 of the printing device, so that the screen printing device can adapt to paper with different lengths, and after the screen printing plate is arranged in the printing screen device 8, the screen printing plate is more convenient and quicker to use, during printing, the screen printing plate is more convenient to contact with the paper, after printing, the screen printing plate is conveniently separated from the paper and can be accommodated in the two sets of screen storage boxes 82, and meanwhile, the reset components are arranged in the screen storage boxes 82, so that the problem that the screen printing plate is loosened or the tension is increased after being used for a long time can be prevented, the service life of the screen printing plate can be prolonged.
On the other hand, each electric part in the device is electrically connected with an external controller, and the working logic and the working sequence among the electric parts can be controlled by programming and manpower.
The working principle of the printing device is as follows: screwing two groups of screen storage boxes 82 to two sides of a folding pipe 81 respectively, then drawing out the screen printing plates from one group of screen storage boxes 82, then expanding a fixed plate 831 and a movable plate 832 of each screen fixer 83 by stretching a second return spring 834, sequentially embedding clamping pieces on two sides of the screen printing plates into clamping grooves 835, then loosening the movable plate 832, connecting the clamping pieces in a clamping manner by using the elasticity of the second return spring 834, then penetrating the other ends of the screen printing plates through an opening of the other screen storage box 82, rotating rollers 821 in the screen storage boxes 82 for 4 circles, tightening the helical springs 825 on two sides, and finally adhering and connecting the screen printing plates with the rotating rollers 821;
unscrewing the connecting bolts 814, stretching the accommodating pipes 811 and the sliding pipes 812 in the folding pipes 81, unfolding the screen printing plates, restoring the accommodating pipes 811 and the sliding pipes 812, respectively rolling a part of the screen printing plates by the two groups of rotating rollers 821, repeating the steps for 3 times, uniformly accommodating the screen printing plates outside the two groups of rotating rollers 821, sliding the screen printing plates under the driving of the sliding belts 833 when pulled, finally adjusting the folding pipes 81, and screwing the connecting bolts 814;
one end of the printing silk screen device 8 is embedded into a connecting box 71 of one group of the clamping devices 7, then the locking bolt 72 is screwed to fix the printing silk screen device 8, then the electric telescopic rods 73 in the two groups of the clamping devices 7 are started to change the distance between the two clamping devices 7, the other end of the printing silk screen device 8 is embedded into the other connecting box 71, and finally the other locking bolt 72 is screwed to fix the printing silk screen device 8;
starting a hydraulic rod 12, extending a processing plate 11 into a printing tank 2, then laying paper on the upper side of the processing plate 11, then starting a screw rod driving frame 5, driving a clamp 7 and a printing screen device 8 to descend to the upper side of the paper along a sliding frame 6, then manually printing water-based foaming ink on the paper from the hollowed part of a screen plate by using a screen printing machine scraper, starting the screw rod driving frame 5 again, taking the clamp 7 and the printing screen device 8 away from the paper, then starting a hydraulic rod 12, taking the paper into the processing table 1, then starting a driving motor 14, driving the rotating table 10 to rotate by the driving motor 14 through two groups of gears in meshed connection, after driving the processing plate 11 and the paper to the lower side of a drying box 3, closing the driving motor 14, then simultaneously starting the hydraulic rods 12 on the lower sides of the printing tank 2 and the drying box 3, driving a new processing plate 11 to ascend into the printing tank 2 by the hydraulic rod 12 on the lower side of the printing tank 2, repeat the new paper of above-mentioned step processing afterwards, the paper after 3 downside of stoving case 12 drives another processing board 11 and printing rises, start the inside heating member of 3 inside of stoving case and dry the paper afterwards, after printing and stoving technology all accomplished, start two sets of hydraulic stem 12 and drive two sets of processing boards 11 and descend, start driving motor 14 afterwards, restart three hydraulic stem 12, printing and stoving can be carried out to above-mentioned step repeatedly to processing board 11 of printing bath 2 and 3 downside of stoving case, it can to take out the paper on the processing board 11 of discharge gate downside and detect, in-process in the printing, can inhale additional processing board 11 through the magnetic stripe and fix the paper.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (9)
1. A screen printing method characterized by comprising the steps of:
the method comprises the following steps: preparing a photosensitive emulsion, placing the photosensitive emulsion in an environment of 30-35 ℃ for standing for 2-3 hours, vibrating the photosensitive emulsion by using a vibrating rod every other hour, and putting a defoaming agent into the photosensitive emulsion during vibration;
step two: manufacturing a screen plate by a direct plate making method, and installing the screen plate into a printing device after the screen plate is manufactured;
step three: debugging a printing device, fixing paper to be printed into the printing device, and manually printing water-based foaming ink on the paper from the hollow part of the screen plate by using a screen printing machine scraper;
step four: moving the printed paper into a drying device in a printing device, and printing new paper while drying the paper;
step five: repeating the step four to dry and print the new paper, taking the dried paper out of the printing device, cooling and forming;
step six: and detecting the printed paper, and storing the paper qualified in detection and properly placing the paper.
2. The screen printing method according to claim 1, wherein the paper detection adopts one or a mixture of manual quality inspection and image recognition device detection, and unqualified paper is detected to be uniformly destroyed and recycled to be made into recycled paper.
3. A screen printing method according to claim 1, wherein the printing apparatus comprises a processing table (1), a printing groove (2) is formed in one side of the upper surface of the processing table (1), and the other side of the upper surface of the processing platform (1) is fixedly connected with a drying box (3), the printing tank (2) and the drying box (3) are both communicated with the processing platform (1), and the upper surface of the drying box (3) is fixedly connected with a ventilation box (4), one side of the upper surface of the processing table (1) close to the printing groove (2) is fixedly connected with a screw rod driving frame (5), and the other side of the upper surface of the processing table (1) close to the printing groove (2) is fixedly connected with a sliding frame (6), the lead screw driving frame (5) and one side of the sliding frame (6) facing the printing groove (2) are both provided with a clamp holder (7), and a printing silk screen device (8) is clamped between the two groups of clamp holders (7);
the machining device is characterized in that a reinforcing frame (9) is fixedly connected to the inside of the machining table (1), a rotating table (10) is rotatably connected to the inside of the reinforcing frame (9), a driving motor (14) is fixedly connected to one side, close to the rotating table (10), of the inside of the reinforcing frame (9), the bottom end of the rotating table (10) is rotatably connected with the machining table (1), the side wall of the rotating table (10) is meshed with the output end of the driving motor (14) through two groups of gears, three groups of machining plates (11) are arranged on the upper surface of the rotating table (10), a hydraulic rod (12) is fixedly connected between the middle of the lower surface of each machining plate (11) and the rotating table (10), and telescopic rods (13) are fixedly connected between the two sides of the lower surface of each machining plate (11) and the rotating table (10);
three groups processing board (11) are rotating the upside evenly distributed of platform (10), and each contained angle between processing board (11) is 120, processing platform (1) upper surface is close to one side of printing groove (2) and stoving case (3) and has seted up the discharge gate, printing groove (2), stoving case (3) and discharge gate are located three groups processing board (11) and move the positive upside of orbit, and the contained angle between printing groove (2), stoving case (3) and the discharge gate is 120, the size of printing groove (2) and stoving case (3) and processing platform (1) intercommunication is the same with the size of processing board (11), and the size of discharge gate is greater than the size of processing board (11).
4. A screen printing method according to claim 3, wherein two groups of said holders (7) each comprise a connection box (71), a locking bolt (72) is screwed on the upper surface of said connection box (71), an electric telescopic rod (73) is fixedly connected to one side of said connection box (71), a connection plate (74) is fixedly connected to one end of said electric telescopic rod (73), a support frame (75) fixedly connected to said connection plate (74) is sleeved on the outer surface of said electric telescopic rod (73), a connection plate (74) is fixedly connected to one side of said connection plate (74), one group of said holders (7) is screwed to a screw rod in a screw rod driving frame (5) through a sleeve plate (76), and the other group of said holders (7) is slidably connected to a sliding frame (6) through a sleeve plate (76).
5. The screen printing method according to claim 4, wherein the printing screen device (8) comprises two groups of folding pipes (81), a screen storage box (82) is screwed between two ends of each group of folding pipes (81), each folding pipe (81) comprises a storage pipe (811) and a sliding pipe (812), each sliding pipe (812) is connected inside the corresponding storage pipe (811), a sliding groove (813) is formed inside each sliding pipe (812), a connecting bolt (814) is connected between each storage pipe (811) and each sliding groove (813) in a penetrating manner, and screen retainers (83) are fixedly connected to inner sides of each group of storage pipes (811) and the corresponding sliding pipes (812).
6. A screen printing method according to claim 5, wherein a rotating roller (821) is rotatably attached to an inside of said screen accommodating case (82), an opening is arranged on one side of the silk screen containing box (82), the other side of the silk screen containing box (82) is hinged with a sealing cover through a hinge, and the upper and lower sides of the inner part of the silk screen containing box (82) close to the opening are fixedly connected with first return springs (823), one end of the first return spring (823) far away from the inner wall of the screen storage box (82) is fixedly connected with a limiting roller (822), both sides of the outer surface of the rotating roller (821) are provided with accommodating grooves (824), and the outer sides of the rotating shaft parts at the two ends of the rotating roller (821) are sleeved with a spiral spring (825), and two ends of the spiral spring (825) are fixedly connected with the rotating roller (821) and the silk screen storage box (82) respectively.
7. The screen printing method according to claim 6, wherein the screen fixer (83) comprises a fixing plate (831) and a movable plate (832), both ends of the fixing plate (831) and the movable plate (832) are fixedly connected with a second return spring (834), one side of the lower surface of the fixing plate (831) close to the second return spring (834) is fixedly connected with a limiting rod (836), the bottom end of the limiting rod (836) penetrates through the movable plate (832), the upper surface of the movable plate (832) is rotatably connected with a sliding belt (833), the inner side of the upper surface of the movable plate (832) close to the sliding belt (833) and the lower surface of the fixing plate (831) are respectively provided with a clamping groove (835), and the two groups of clamping grooves (835) are in the same vertical direction.
8. A screen printing method as claimed in claim 7, wherein both ends of the screen plate respectively penetrate through the openings of the screen receiving boxes (82), and both ends of the screen plate are respectively connected with the two sets of rotating rollers (821) in an adhering manner, both sides of the screen plate are respectively connected with the clamping pieces in the shape of the Chinese character 'gong' in an adhering manner, and the clamping pieces on both sides of the screen plate are respectively connected inside the clamping grooves (835) in the screen holders (83) on both sides in a sliding manner.
9. A screen printing method according to claim 8, wherein said printing means is operated by: two groups of screen storage boxes (82) are respectively screwed to two sides of a folding tube (81), then a screen is drawn out of the screen storage boxes (82), then a fixed plate (831) and a movable plate (832) of each screen fixer (83) are unfolded by stretching a second reset spring (834), clamping pieces on two sides of the screen are sequentially embedded into clamping grooves (835), then the movable plate (832) is loosened, the clamping pieces are connected in a clamping manner by utilizing the elasticity of the second reset spring (834), then the other end of the screen passes through an opening of the other screen storage box (82), a rotating roller (821) in the screen storage box (82) is rotated for 4-5 circles, the spiral springs (825) on two sides are tightly taken, and finally the screen is connected with the rotating roller (821) in an adhering manner;
unscrewing connecting bolts (814), stretching a containing pipe (811) and a sliding pipe (812) in a folding pipe (81), unfolding a screen printing plate, restoring the containing pipe (811) and the sliding pipe (812), respectively rolling a part of screen printing plate by two groups of rotating rollers (821), repeating the steps for 2-3 times, uniformly containing the screen printing plate on the outer sides of the two groups of rotating rollers (821), sliding the screen printing plate under the drive of a sliding belt (833) during pulling, finally adjusting the folding pipe (81), and screwing the connecting bolts (814);
one end of a printing silk screen device (8) is embedded into a connecting box (71) of one group of holders (7), then a locking bolt (72) is screwed down to fix the printing silk screen device (8), then electric telescopic rods (73) in the two groups of holders (7) are started to change the distance between the two holders (7), the other end of the printing silk screen device (8) is embedded into the other connecting box (71), and finally the other locking bolt (72) is screwed down to fix the printing silk screen device (8);
starting a hydraulic rod (12), extending a processing plate (11) into a printing tank (2), laying paper on the upper side of the processing plate (11), starting a screw rod driving frame (5), driving a clamp holder (7) and a printing screen device (8) to descend to the upper side of the paper along a sliding frame (6), manually printing water-based foaming ink on the paper from a screen plate hollow part by using a screen printing machine scraper, starting the screw rod driving frame (5) again, driving the clamp holder (7) and the printing screen device (8) to be separated from the paper, starting the hydraulic rod (12), driving the paper into the processing table (1), then starting a driving motor (14), driving the rotating table (10) to rotate by two groups of gears which are meshed and connected, and closing the driving motor (14) after driving the processing plate (11) and the paper to the lower side of a drying box (3), then simultaneously starting the hydraulic rods (12) positioned at the lower sides of the printing tank (2) and the drying box (3), driving a new processing plate (11) to ascend into the printing tank (2) by the hydraulic rods (12) positioned at the lower side of the printing tank (2), then the steps are repeated to process new paper, the hydraulic rod (12) at the lower side of the drying box (3) drives another processing plate (11) and the printed paper to ascend, then a heating component in the drying box (3) is started to dry the paper, after printing and stoving technology all accomplished, start two sets of hydraulic stem (12) and drive two sets of processing board (11) and descend, start driving motor (14) afterwards, three hydraulic stem (12) of restart, printing groove (2) and stoving case (3) downside processing board (11) can repeat above-mentioned step and print and dry, take out the paper on processing board (11) of discharge gate downside and detect can.
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