CN114274663B - Printing paper surface silk-screen printing system and processing technology - Google Patents
Printing paper surface silk-screen printing system and processing technology Download PDFInfo
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- CN114274663B CN114274663B CN202210052503.8A CN202210052503A CN114274663B CN 114274663 B CN114274663 B CN 114274663B CN 202210052503 A CN202210052503 A CN 202210052503A CN 114274663 B CN114274663 B CN 114274663B
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Abstract
The invention discloses a printing paper surface screen printing system and a processing technology, and particularly relates to the technical field of screen printing technology and equipment. The silk screen printing system and the processing technology for the surface of the printing paper can integrate the processing technologies of silk screen printing, ultraviolet light fixation, drying, cooling and the like, realize high-automation work, greatly improve the working efficiency, reduce the cost of manual input, treat and discharge the waste gas generated by volatilizing the printing ink, and therefore, the waste gas can reach the discharge standard, and is beneficial to environmental protection.
Description
Technical Field
The invention relates to the technical field of silk-screen printing technology and equipment, in particular to a silk-screen printing system for the surface of printing paper and a processing technology.
Background
Screen printing is abbreviated as screen printing, and printing ink is transferred to a printing stock through meshes of an image-text part by extrusion of a scraping plate during printing, so that an image-text which is the same as an original document is formed. The screen printing equipment is simple, the operation is convenient, the printing and plate making are simple, the cost is low, and the adaptability is strong. The common printed matter with wide application range of screen printing is as follows: color oil painting, poster, business card, frame cover, commodity label, printing and dyeing textile, etc.
After silk-screen printing is carried out on paper, the paper is usually subjected to subsequent processing processes such as ultraviolet curing, drying, cooling and the like, but in the prior art, the processing steps are usually carried out separately, and transfer processing operations are carried out among different machines, so that the working efficiency is definitely reduced.
Disclosure of Invention
The invention mainly aims to provide a printing paper surface screen printing system and a processing technology, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a printing paper surface silk screen printing system and processing technology, its includes screen printer, first conveying component, second conveying component and third conveying component, screen printer, first conveying component, second conveying component and third conveying component connect gradually according to the assembly line direction, first conveying component and second conveying component upper end fixed mounting jointly have the collection cover, it is provided with exhaust treatment subassembly to collect the cover up end, second conveying component lower extreme is provided with electric heater, third conveying component lower extreme fixed mounting has the storage water tank, third conveying component upper end fixed mounting has the cooling tank.
The second conveying assembly comprises two fixing plates, two conveying belts driven by a servo motor are arranged between the two fixing plates, a heating box is arranged in each conveying belt, supporting legs are fixedly installed at the lower ends of the two fixing plates, mounting plates are fixedly installed at the two ends of the fixing plates, four mounting holes are formed in each rectangular array at the upper end of each mounting plate, and the overall structure of the first conveying assembly and the overall structure of the third conveying assembly are identical to that of the second conveying assembly.
The waste gas treatment assembly comprises a first main pipe, a second main pipe and a fan, wherein the fan is provided with three fans, the output ends of the three fans are fixedly provided with vertical pipes, the middle parts of the outer surfaces of the vertical pipes are fixedly provided with L-shaped pipes, one ends of the L-shaped pipes, which are far away from the vertical pipes, are fixedly connected with the lower ends of the first main pipes, one ends of the vertical pipes, which are far away from the fan, are fixedly provided with switch valves, the outer surfaces of the vertical parts of the vertical pipes and the L-shaped pipes are fixedly provided with three adsorption boxes, the adsorption boxes and the fan are sequentially distributed in a staggered mode, and one ends of the first main pipe and the second main pipe are fixedly connected with collecting pipes.
Preferably, the inner cavity of the collecting cover is fixedly provided with three ultraviolet lamps at equal intervals on one side of the inner cavity of the collecting cover, which is close to the screen printer, a baffle is fixedly arranged at the position, between the first conveying assembly and the second conveying assembly, of the inner cavity of the collecting cover, the top wall of the inner cavity of the collecting cover is provided with three exhaust ports, and the three exhaust ports are respectively communicated with the air inlet ends of the three fans.
Preferably, three of the ultraviolet lamps are located directly above the first conveyor assembly, and the partition is located between the first fan and the second fan.
Preferably, the adsorption box comprises a box body and a bottom plate, two installation blocks are symmetrically and fixedly installed at the lower parts of two ends of the box body, a supporting plate is movably installed at the lower ends of the installation blocks, the bottom plate is located an inner cavity of the box body, and a plurality of activated carbon net plates are fixedly installed at the upper ends of the bottom plate at equal intervals.
Preferably, the included angle between the gap between every two adjacent active carbon screen plates and the axial direction of the first main pipe and the second main pipe is 15-30 degrees.
Preferably, the heating box is fixedly arranged between the two fixing plates, an electric heating wire is fixedly arranged in the inner cavity of the heating box, the electric heating wire is electrically connected with the electric heater, the heating box is made of metal with good heat conductivity, heat-conducting silica gel is filled in the inner cavity of the heating box, and the upper end face of the heating box is tightly attached to the lower surface of the conveying belt.
Preferably, the cooling tank top fixed mounting has the dust screen, the position fixed mounting in cooling tank inner chamber upper portion below the dust screen has the roof, roof middle part inlay fixed mounting has a plurality of axial fan, cooling tank lower extreme left part and lower extreme right part respectively fixed mounting are in third conveying component's up end both sides, and cooling tank inner chamber diapire one side fixed mounting has the high-pressure pump, the water inlet end of high-pressure pump extends to below the storage water tank inner chamber liquid level, the water outlet end fixedly connected with output tube of horizontal pipe, output tube upper end fixed mounting has the horizontal pipe, horizontal pipe surface equidistance fixed mounting has a plurality of minute pipe that is parallel to each other, and a plurality of minute pipe is kept away from the one end of output tube and is all run through cooling tank right side diapire and extend to in the storage water tank, cooling tank lower extreme middle part is provided with a ventilation groove that is used for heat dissipation cooling.
The printing paper surface silk screen printing processing technology adopts the printing paper surface silk screen printing system and is characterized by comprising the following specific steps: s1, preparation before use: the power supply is connected, the water quantity in the water storage tank is ensured to be sufficient, and the electric heating wire in the heating box is utilized to generate heat, so that the temperature of the electric heater is increased to a proper drying temperature.
S2, carrying out surface silk screen printing on paper by a screen printer, then enabling the paper to enter a conveying belt of a first conveying assembly under the conveying of the screen printer, and then collecting three ultraviolet lamps in a cover to work, and further carrying out ultraviolet irradiation on the silk screen printed paper, so that the ink printing layer is subjected to fission reaction.
S3, after the silk-screened paper is irradiated by ultraviolet rays, the paper is conveyed by the first conveying assembly and then moves to the upper surface of the conveying belt on the second conveying assembly, and at the moment, the paper is dried by the conveying belt heated to a certain temperature.
S4, moving the dried paper to a third conveying assembly under the drive of a second conveying assembly, at the moment, circularly conveying water in the water storage tank through an output pipe, a horizontal pipe and a branch pipe by the high-pressure pump to reduce the temperature in the cooling box, and simultaneously, enabling a plurality of axial fans to work and blow downwards to realize rapid cooling of the paper.
S5, collecting and finishing the processed silk-screen paper.
Preferably, the ultraviolet lamp has a power of 20 watts, an irradiation time of 0.5-1s, and a distance between the three ultraviolet lamps and the conveyor belt on the first conveyor assembly is 5cm.
Preferably, in the S2 and S3 processes, the method further includes: the printing ink volatilized by paper in the collecting cover is sent into the first main pipe and/or the second main pipe by using three fans, and is adsorbed by using the activated carbon screen plate in the adsorption box so as to adsorb and treat harmful waste gas.
Compared with the prior art, the invention has the following beneficial effects: compared with the prior art, the invention can integrate the processing technologies of silk screen printing, ultraviolet fixation, drying, cooling and the like into a whole, realize high-automation work, greatly improve the working efficiency, reduce the cost of manual input, and treat and discharge the waste gas generated by volatilizing the printing ink in the subsequent processing process of silk screen printing by virtue of the collecting cover and the waste gas treatment assembly, so that the waste gas can reach the discharge standard, and the environment friendliness is better.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the overall structure of the second conveying assembly of the present invention.
Fig. 3 is a schematic view of the internal structure of the heating box of the present invention.
FIG. 4 is a schematic diagram of the overall structure of an exhaust treatment assembly according to the present invention.
Fig. 5 is a schematic view showing the internal structure of the collecting hood of the present invention.
Fig. 6 is a schematic view showing an internal structure of the exhaust gas treatment module case of the present invention.
Fig. 7 is a schematic view of the installation structure of the activated carbon net plate of the present invention.
Fig. 8 is a schematic view of an installation position of the axial flow fan of the present invention.
Fig. 9 is a schematic view showing the internal structure of the cooling tank of the present invention.
In the figure: 1. a screen printer; 2. a first transport assembly; 3. a second transport assembly; 31. a fixing plate; 32. support legs; 33. a conveyor belt; 34. a mounting plate; 35. a mounting hole; 4. a third transport assembly; 5. a collection cover; 51. a partition plate; 52. an ultraviolet lamp; 53. an exhaust port; 6. an exhaust treatment assembly; 61. a first main pipe; 62. a second main pipe; 63. an adsorption box; 631. a case; 632. a support plate; 633. a bottom plate; 634. a mounting block; 635. an activated carbon screen; 64. a collecting pipe; 65. a blower; 66. a vertical tube; 67. an L-shaped tube; 68. a switch valve; 7. an electric heater; 71. a heating box; 72. an electric heating wire; 8. a cooling box; 81. a top plate; 82. an axial flow fan; 83. a high pressure pump; 84. a horizontal tube; 85. an output pipe; 86. a branch pipe; 9. and a water storage tank.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-9, a printing paper surface screen printing system comprises a screen printer 1, a first conveying component 2, a second conveying component 3 and a third conveying component 4, wherein the screen printer 1, the first conveying component 2, the second conveying component 3 and the third conveying component 4 are sequentially connected according to the direction of a production line, a collecting cover 5 is fixedly installed at the upper end of the first conveying component 2 and the upper end of the second conveying component 3 together, an exhaust gas treatment component 6 is arranged on the upper end face of the collecting cover 5, an electric heater 7 is arranged at the lower end of the second conveying component 3, a water storage tank 9 is fixedly installed at the lower end of the third conveying component 4, and a cooling box 8 is fixedly installed at the upper end of the third conveying component 4.
Specifically, referring to fig. 2-3, the second conveying assembly 3 includes two fixing plates 31, two fixing plates 31 are provided, a conveying belt 33 driven by a servo motor is jointly provided between the two fixing plates 31, a heating box 71 is provided in the conveying belt 33, supporting legs 32 are fixedly installed at the lower ends of the two fixing plates 31, mounting plates 34 are fixedly installed at both ends of the two fixing plates 31, four mounting holes 35 are provided at the upper end of each mounting plate 34 in a rectangular array, and the overall structure of the first conveying assembly 2 and the third conveying assembly 4 is identical to that of the second conveying assembly 3; through the cooperation of the mounting plate 34 and the mounting hole 35, bolt fixation is adopted, and further the mutual connection between the screen printer 1 and the first conveying component 2, between the first conveying component 2 and the second conveying component 3, and between the second conveying component 3 and the third conveying component 4 is realized, the heating box 71 is fixedly arranged between the two fixing plates 31, the electric heating wire 72 is fixedly arranged in the inner cavity of the heating box 71, the electric heating wire 72 is electrically connected with the electric heater 7, the heating box 71 is made of metal with good heat conductivity, heat conducting silica gel is filled in the inner cavity of the heating box 71, and the upper end surface of the heating box 71 is tightly attached to the lower surface of the conveying belt 33; after the power is turned on, the electric heating wire 72 in the heating box 71 is utilized to generate heat, so that the temperature of the electric heater 7 is raised to a proper drying temperature, and the upper end surface of the heating box 71 is tightly attached to the lower surface of the conveying belt 33, so that the conveying belt 33 is heated to a certain temperature, and the paper is dried conveniently.
Referring to fig. 4-5, the exhaust gas treatment component 6 includes a first main pipe 61, a second main pipe 62 and fans 65, the fans 65 are provided with three fans 65, vertical pipes 66 are fixedly installed at the output ends of the three fans 65, an L-shaped pipe 67 is fixedly installed in the middle of the outer surface of the vertical pipe 66, one end of the L-shaped pipe 67, far from the vertical pipe 66, is fixedly connected to the lower end of the first main pipe 61, one end of the vertical pipe 66, far from the fans 65, is fixedly installed at the lower end of the second main pipe 62, on-off valves 68 are arranged on the outer surfaces of the vertical pipe 66 and the vertical part of the L-shaped pipe 67, three adsorption tanks 63 are fixedly installed on the outer surfaces of the first main pipe 61 and the second main pipe 62, the adsorption tanks 63 and the fans 65 are sequentially staggered, and one ends of the first main pipe 61 and the second main pipe 62 are fixedly connected with a collecting pipe 64; three ultraviolet lamps 52 are fixedly arranged on one side, close to the screen printer 1, of the inner cavity of the collecting cover 5, a baffle plate 51 is fixedly arranged at a position, located between the first conveying assembly 2 and the second conveying assembly 3, of the inner cavity of the collecting cover 5, three exhaust ports 53 are formed in the top wall of the inner cavity of the collecting cover 5, and the three exhaust ports 53 are respectively communicated with air inlet ends of three fans 65; in addition, three ultraviolet lamps 52 are positioned right above the first conveying assembly 2, and a partition plate 51 is positioned between the first fan 65 and the second fan 65; it can be seen that, through being provided with three fans 65, in the process of drying and ultraviolet irradiation, can utilize three fans 65 to send the printing ink volatilized by the paper in the collection cover 5 into first main pipe 61 and/or second main pipe 62, utilize the activated carbon screen 635 in the adsorption tank 63 to adsorb it, so as to adsorb the treatment to harmful waste gas, and adsorption tank 63 is provided with a plurality ofly, when the activated carbon screen 635 in adsorption tank 63 tends to saturated condition, only need control corresponding on-off valve 68 and open or close, can change activated carbon screen 635 under the condition that does not influence waste gas treatment, need not to shut down whole equipment, help improving work efficiency.
As shown in fig. 6-7, the adsorption box 63 includes a box 631 and a bottom plate 633, two mounting blocks 634 are symmetrically and fixedly mounted at the lower parts of two ends of the box 631, a supporting plate 632 is movably mounted at the lower ends of the four mounting blocks 634, the bottom plate 633 is located in an inner cavity of the box 631, and a plurality of activated carbon screen plates 635 are fixedly mounted at the upper ends of the bottom plate 633 at equal intervals.
It should be specifically noted that, the included angle between the gap between every two adjacent activated carbon net plates 635 and the axial direction of the first main pipe 61 and the second main pipe 62 is 15 ° -30 °, so that the adsorption efficiency can be improved under the condition of effectively ensuring air circulation, when the activated carbon net plates 635 need to be replaced, the support plates 632 are only required to be rotated to move away from the lower ends of the bottom plates 633, and then the whole bottom plates 633 and the activated carbon net plates 635 can be taken out for replacement, and after the replacement is completed, the support plates 632 are only required to be rotated back to the lower parts of the bottom plates 633, so that the bottom plates 633 and the box 631 are kept relatively fixed, and the operation is simple and convenient.
Referring to fig. 8-9, a dust screen is fixedly mounted on the top of the cooling tank 8, a top plate 81 is fixedly mounted at a position below the dust screen at the upper part of the inner cavity of the cooling tank 8, a plurality of axial fans 82 are fixedly mounted at the middle part of the top plate 81, the left part and the right part of the lower end of the cooling tank 8 are respectively and fixedly mounted at two sides of the upper end surface of the third conveying component 4, a high-pressure pump 83 is fixedly mounted at one side of the bottom wall of the inner cavity of the cooling tank 8, the water inlet end of the high-pressure pump 83 extends below the liquid level of the inner cavity of the water storage tank 9, the water outlet end of a horizontal pipe 84 is fixedly connected with an output pipe 85, a horizontal pipe 84 is fixedly mounted at the upper end of the output pipe 85, a plurality of sub pipes 86 which are parallel to each other are fixedly mounted at equal intervals on the outer surfaces of the horizontal pipe 84, one ends of the sub pipes 86 far from the right side of the output pipe 85 penetrate through the bottom wall of the cooling tank 8 and extend into the water storage tank 9, and a ventilation groove for cooling is formed in the middle of the lower end of the cooling tank 8; it can be seen that after the power is turned on, the high-pressure pump 83 works to circularly convey water in the water storage tank 9 through the output pipe 85, the horizontal pipe 84 and the branch pipe 86 so as to reduce the temperature in the cooling box 8, and meanwhile, the plurality of axial flow fans 82 work to blow downwards so as to realize rapid cooling of paper, thereby facilitating subsequent collection and arrangement of the paper and improving the working efficiency.
It should be noted that the screen printer 1 of the present invention adopts a full-automatic stop-and-turn screen printer of model JB-1050AG produced by the company of mechanical limited of leopard in Zhejiang, and can be accurately delivered to the cylinder gripper, achieving extremely high accuracy, up to 4000 sheets/hour running speed, up to the highest international industry level, and greatly improving production efficiency.
The invention also discloses a printing paper surface silk screen printing processing technology, which adopts the printing paper surface silk screen printing system, and specifically comprises the following steps: s1, preparation before use: the power is turned on, the water quantity in the water storage tank 9 is ensured to be sufficient, and the electric heating wire 72 in the heating box 71 is utilized to generate heat, so that the temperature of the electric heater 7 is increased to a proper drying temperature, and the upper end surface of the heating box 71 is tightly attached to the lower surface of the conveying belt 33, so that the conveying belt 33 is heated to a certain temperature.
S2, carrying out surface silk screen printing on paper by the screen printer 1, then enabling the paper to enter a conveying belt of the first conveying assembly 2 under the conveying of the screen printer 1, and then enabling three ultraviolet lamps 52 in the collecting cover 5 to work, and further carrying out ultraviolet irradiation on the silk screen printed paper, so that the ink printing layer is subjected to fission reaction.
S3, after the silk-screened paper is irradiated by ultraviolet rays, the paper is conveyed by the first conveying assembly 2 to the upper surface of the conveying belt 33 on the second conveying assembly 3, and at the moment, the paper is dried by the conveying belt 33 heated to a certain temperature.
S4, the dried paper moves onto the third conveying assembly 4 under the drive of the second conveying assembly 3, at the moment, the high-pressure pump 83 works to circularly convey water in the water storage tank 9 through the output pipe 85, the horizontal pipe 84 and the branch pipe 86 so as to reduce the temperature in the cooling box 8, and meanwhile, the plurality of axial flow fans 82 work to blow downwards, so that the paper is rapidly cooled.
S5, collecting and finishing the processed silk-screen paper.
It should be particularly noted that in the above step, the power of the ultraviolet lamps 52 is 20 watts, the irradiation time is 0.5-1s, and the distance between the three ultraviolet lamps 52 and the conveyor belt 33 on the first conveyor assembly 2 is 5cm. In addition, in the S2 and S3 processes, the method further includes: the ink volatilized from the paper in the collection hood 5 is sent into the first main pipe 61 and/or the second main pipe 62 by three fans 65, and is adsorbed by the activated carbon screen 635 in the adsorption tank 63 to adsorb the harmful exhaust gas.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The screen printing system for the surface of printing paper is characterized by comprising a screen printing machine (1), a first conveying assembly (2), a second conveying assembly (3) and a third conveying assembly (4), wherein the screen printing machine (1), the first conveying assembly (2), the second conveying assembly (3) and the third conveying assembly (4) are sequentially connected according to the direction of a production line, a collecting cover (5) is fixedly arranged at the upper ends of the first conveying assembly (2) and the second conveying assembly (3) together, an exhaust gas treatment assembly (6) is arranged at the upper end surface of the collecting cover (5), an electric heater (7) is arranged at the lower end of the second conveying assembly (3), a water storage tank (9) is fixedly arranged at the lower end of the third conveying assembly (4), and a cooling tank (8) is fixedly arranged at the upper end of the third conveying assembly (4); the second conveying assembly (3) comprises two fixing plates (31), conveying belts (33) driven by servo motors are arranged between the two fixing plates (31) in a common mode, heating boxes (71) are arranged in the conveying belts (33), supporting legs (32) are fixedly arranged at the lower ends of the two fixing plates (31), mounting plates (34) are fixedly arranged at the two ends of the fixing plates (31), four mounting holes (35) are formed in rectangular arrays at the upper end of each mounting plate (34), and the integral structure of the first conveying assembly (2) and the integral structure of the third conveying assembly (4) are identical to that of the second conveying assembly (3); the waste gas treatment assembly (6) comprises a first main pipe (61), a second main pipe (62) and a fan (65), wherein three fans (65) are arranged, vertical pipes (66) are fixedly arranged at the output ends of the three fans (65), L-shaped pipes (67) are fixedly arranged in the middle of the outer surfaces of the vertical pipes (66), one ends of the L-shaped pipes (67) far away from the vertical pipes (66) are fixedly connected to the lower end of the first main pipe (61), one ends of the vertical pipes (66) far away from the fans (65) are fixedly arranged at the lower end of the second main pipe (62), switch valves (68) are arranged on the outer surfaces of the vertical parts of the vertical pipes (66) and the L-shaped pipes (67), three adsorption boxes (63) are fixedly arranged on the outer surfaces of the first main pipe (61) and the second main pipe (62), the adsorption boxes (63) are sequentially distributed in a staggered mode, and one ends of the first main pipe (61) and the second main pipe (62) are fixedly connected with a collecting pipe (64);
three ultraviolet lamps (52) are fixedly arranged on one side, close to the screen printer (1), of the inner cavity of the collecting cover (5), a partition plate (51) is fixedly arranged at a position between the first conveying assembly (2) and the second conveying assembly (3) of the inner cavity of the collecting cover (5), three exhaust ports (53) are formed in the top wall of the inner cavity of the collecting cover (5), and the three exhaust ports (53) are respectively communicated with air inlet ends of three fans (65);
the adsorption box (63) comprises a box body (631) and a bottom plate (633), two mounting blocks (634) are symmetrically and fixedly mounted at the lower parts of two ends of the box body (631), a supporting plate (632) is movably mounted at the lower ends of the four mounting blocks (634), the bottom plate (633) is positioned in the inner cavity of the box body (631), and a plurality of activated carbon screen plates (635) are fixedly mounted at the upper end of the bottom plate (633) at equal intervals;
the heating box (71) is fixedly arranged between the two fixing plates (31), an electric heating wire (72) is fixedly arranged in the inner cavity of the heating box (71), the electric heating wire (72) is electrically connected with the electric heater (7), the heating box (71) is made of metal with good heat conductivity, heat conducting silica gel is filled in the inner cavity of the heating box (71), and the upper end face of the heating box (71) is tightly attached to the lower surface of the conveying belt (33);
the top of the cooling box (8) is fixedly provided with a dust screen, a top plate (81) is fixedly arranged below the dust screen at the upper part of the inner cavity of the cooling box (8), a plurality of axial fans (82) are fixedly arranged in the middle of the top plate (81), the left part and the right part of the lower end of the cooling box (8) are respectively and fixedly arranged at the two sides of the upper end face of the third conveying assembly (4), one side of the bottom wall of the inner cavity of the cooling box (8) is fixedly provided with a high-pressure pump (83), the water inlet end of the high-pressure pump (83) extends to below the liquid level of the inner cavity of the water storage tank (9), the water outlet end fixedly connected with output tube (85) of high-pressure pump (83), output tube (85) upper end fixed mounting has horizontal pipe (84), horizontal pipe (84) surface equidistance fixed mounting has a plurality of be parallel to each other to be in charge of (86), and the one end that output tube (85) was kept away from to a plurality of be in charge of (86) all runs through cooler bin (8) right side diapire and extends to in storage water tank (9), cooler bin (8) lower extreme middle part is provided with a ventilation groove that is used for heat dissipation cooling.
2. A printing sheet surface screen printing system according to claim 1, wherein: three ultraviolet lamps (52) are arranged right above the first conveying assembly (2), and the partition plate (51) is arranged between the first fan (65) and the second fan (65).
3. A printing sheet surface screen printing system according to claim 1, wherein: the included angle between the gap between every two adjacent active carbon screen plates (635) and the axial direction of the first main pipe (61) and the second main pipe (62) is 15-30 degrees.
4. A printing paper surface silk screen printing process, which adopts the printing paper surface silk screen printing system as claimed in any one of claims 1 to 3, and is characterized by comprising the following specific steps:
s1, preparation before use: the power supply is switched on, the water quantity in the water storage tank (9) is ensured to be sufficient, the electric heating wire (72) in the heating box (71) is utilized to generate heat, so that the temperature of the electric heater (7) is increased to a proper drying temperature, and the upper end surface of the heating box (71) is tightly attached to the lower surface of the conveying belt (33), so that the conveying belt (33) is heated to a certain temperature;
s2, carrying out surface silk screen printing on paper by a silk screen printer (1), then enabling the paper to enter a conveying belt (33) of a first conveying assembly (2) under the conveying of the silk screen printer (1), and then enabling three ultraviolet lamps (52) in a collecting cover (5) to work, and further carrying out ultraviolet irradiation on the silk screen printed paper to enable an ink printing layer to undergo fission reaction;
s3, after the silk-screened paper is irradiated by ultraviolet rays, the paper is conveyed by the first conveying assembly (2) and then moves to the upper surface of a conveying belt (33) on the second conveying assembly (3), and at the moment, the paper is dried by the conveying belt (33) heated to a certain temperature;
s4, moving the dried paper to a third conveying assembly (4) under the drive of a second conveying assembly (3), wherein a high-pressure pump (83) works to circularly convey water in a water storage tank (9) through an output pipe (85), a horizontal pipe (84) and a branch pipe (86) so as to reduce the temperature in a cooling box (8), and meanwhile, a plurality of axial flow fans (82) work to blow downwards so as to realize rapid cooling of the paper;
s5, collecting and finishing the processed silk-screen paper.
5. The process for silk-screen printing on the surface of printing paper according to claim 4, wherein the process comprises the following steps: the power of the ultraviolet lamps (52) is 20W, the irradiation time is 0.5-1s, and the distance between the three ultraviolet lamps (52) and the conveying belt (33) on the first conveying assembly (2) is 5cm.
6. The process for silk screening on the surface of printing paper according to claim 4, further comprising, during S2 and S3: the printing ink volatilized by paper in the collecting cover (5) is sent into the first main pipe (61) and/or the second main pipe (62) by using three fans (65), and is adsorbed by using an activated carbon screen plate (635) in the adsorption box (63) so as to adsorb and treat harmful waste gas.
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| CN202210052503.8A CN114274663B (en) | 2022-01-18 | 2022-01-18 | Printing paper surface silk-screen printing system and processing technology |
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| CN202210052503.8A CN114274663B (en) | 2022-01-18 | 2022-01-18 | Printing paper surface silk-screen printing system and processing technology |
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