Automatic typesetting printing machine and using method thereof

Abstract

The invention discloses an automatic typesetting printing machine and a using method thereof, and relates to the technical field of printing machines. An inkjet printer is arranged on one side of the front double-layer conveying frame, a multi-belt type feeding conveying mechanism used for feeding printing materials into the inkjet printer in the X-axis direction is installed in the front double-layer conveying frame, and a pneumatic type thickness compensation material pressing mechanism is installed on one side of the top end of the front double-layer conveying frame. A wide-breadth bidirectional anti-offset feeding structure used for adjusting the distance according to the width specification of a printing material is further installed in the front double-layer conveying frame. The negative pressure type air inlet structure continuously generates downward suction force to a printing material, so that the front side edge and the rear side edge of paper have downward attaching force before printing, and the air exhaust end of the series centrifugal air exhaust mechanism continuously supplies hot air to the printed printing material through the heat guide air box and promotes ink to be dried and cured. Therefore, the technical scheme of stable conveying before coiling and drying and curing after coiling is formed.

Description

Technical Field

[0001] The present invention relates to the technical field of printing presses, and specifically to an automatic typesetting printing press and its usage method. Background Art

[0002] An automatic typesetting large-format inkjet printing press is a device specifically used for high-quality, large-area color inkjet printing, and is widely used in fields such as advertising, murals, and decorative paintings. Its main function is to achieve high-efficiency and precise large-format inkjet output, support various materials such as fabrics, PVCs, and back adhesives, and meet the needs of different customers. The device combines advanced inkjet technology and an automatic typesetting system, which can automatically optimize the image layout, reduce manual operation errors, and improve production efficiency and capacity. Its structure mainly includes a nozzle system, an ink supply system, a platform conveying system, a typesetting and control system, and a mechanical structure. The nozzles adopt multi-color inkjet technology to ensure color reproduction and detail performance; the ink supply system ensures stable ink supply; the platform conveying system ensures smooth movement of the material; the control system supports automatic typesetting, parameter setting, and operation interface; the mechanical structure ensures precise and stable movement. The entire printing process includes design typesetting, file preprocessing, material preparation, parameter setting, automatic typesetting and calibration, inkjet printing, and drying and subsequent processing.

[0003] For example, a drying device for a printing press and its usage method disclosed in the publication number CN116039241A consists of a pre-drying mechanism, an adsorption drying mechanism, and a gas guiding mechanism. While the printing roller continuously prints on the paper and conveys it to the left, the airflow in the heat conduction tube is discharged along the inclined air outlet, and the surface of the paper is pre-heated through the heat conduction tube to facilitate accelerating the drying efficiency of the ink on the paper by the subsequent printer. However, the above technical solution mainly acts on the pre-conveying stage of the printing material of the printing press and realizes pre-heating of the printing material during the conveying stage. For long-sized and large-format printing materials (fabrics, PVCs, papers), the printed surface of the printing material needs to be immediately wound up after printing. At this time, the printed surface of the printing material is not continuously dried by hot air, and the ink has not been fully dried and cured. Different types of inks have different fluidities and permeabilities. The permeability of oil-based or solvent-based inks is relatively strong. In the case of insufficient drying, the ink easily penetrates downward along the fibers or pores of the printing material, forming "bleeding" or "smudging" phenomena. At this time, only hot air blowers can be added at the outlet of the printing press. For large-format materials (such as 5m wide), multiple groups of hot air blowers need to be connected in parallel, adding a continuous hot air drying link and prolonging the drying time. The device itself does not integrate a reliable and efficient coupling technology of "stable conveying before winding and drying and curing after winding". Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic typesetting printing machine and its usage method. The large-format printing material to be printed is fed into the inkjet printer by a rotary drive unit, a multi-belt feeding and conveying mechanism, and a pneumatic thickness compensation pressing mechanism for continuous printing. During the conveying process, the wide-width double-direction anti-offset feeding structure reduces the horizontal offset of the large-format printing material. The series-type centrifugal exhaust mechanism also receives power from the rotary drive unit, and the negative-pressure air intake structure continuously generates a downward suction force on the printing material, so that the front and rear sides of the paper before printing have a downward adhesion force. The exhaust end of the series-type centrifugal exhaust mechanism continuously supplies hot air to the printed material after printing through a heat conduction air box to promote the drying and curing of the ink, thus forming a "stable conveying before the reel and drying and curing after the reel" linkage solution to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: An automatic typesetting printing machine, comprising: A front double-layer conveying rack, on one side of the front double-layer conveying rack is provided an inkjet printer, and inside the front double-layer conveying rack is installed a multi-belt feeding and conveying mechanism for feeding the printing material into the inkjet printer in the X-axis direction. On one side of the top of the front double-layer conveying rack is installed a pneumatic thickness compensation pressing mechanism. Inside the front double-layer conveying rack is also installed a wide-width double-direction anti-offset feeding structure for adjusting the spacing according to the width specification of the printing material. On one side of the back of the front double-layer conveying rack is installed a rotary drive unit for driving the multi-belt feeding and conveying mechanism to work; A series-type centrifugal exhaust mechanism, the series-type centrifugal exhaust mechanism is arranged on the front and rear outer walls of the front double-layer conveying rack. The series-type centrifugal exhaust mechanism and the multi-belt feeding and conveying mechanism maintain power connection. On one side inside the front double-layer conveying rack is installed a negative-pressure air intake structure connected to the air inlet end of the series-type centrifugal exhaust mechanism. On the top of the inkjet printer is installed a heat conduction air box, the air outlet end of the heat conduction air box is inclined downward, and the air inlet end of the heat conduction air box is connected to the air outlet end of the series-type centrifugal exhaust mechanism. The input ends of the rotary drive unit, the pneumatic thickness compensation pressing mechanism, the wide-width double-direction anti-offset feeding structure, and the heat conduction air box are all electrically connected to the output end of the control panel in the inkjet printer.

[0006] Preferably, the multi-belt feeding and conveying mechanism includes two roller support seats fixed on the left outer wall of the front double-layer conveying rack, a front belt roller rotatably installed between the two roller support seats through bearings, and a rear belt roller rotatably installed on the right outer wall of the front double-layer conveying rack. Between the front belt roller and the rear belt roller are sleeved two conveyor belts with a mirror-symmetrical structure.

[0007] Preferably, square-mouth longitudinal beams are fixed on both sides inside the front double-layer conveyor rack. A hollow triangular beam is fixed on the outer wall of the front double-layer conveyor rack on one side of the rear belt roller. The upper surfaces of the square-mouth longitudinal beam and the hollow triangular beam are in contact with the top wall of the conveyor belt.

[0008] Preferably, the pneumatic thickness compensation pressing mechanism includes two inclined support plates fixed at the top edge position on the left side of the front double-layer conveyor rack, a support shaft fixed between the two inclined support plates, T-shaped shaft seats movably sleeved at both ends of the surface of the support shaft, and a rotating shaft rotatably installed between the two T-shaped shaft seats. The rotating shaft is obliquely above the right side of the front belt roller. A plurality of rubber wheels are fixed on the surface of the rotating shaft. A cylinder for controlling the T-shaped shaft seat to swing around the central axis of the support shaft is installed on the outer wall of one side of the inclined support plate. The input end of the cylinder is electrically connected to the output end of the control panel in the inkjet printer.

[0009] Preferably, the bottom of the cylinder is hinged to the outer wall of one side of the inclined support plate. The top end of the piston rod of the cylinder is fixed with a spherical eye joint. A round pin hinged to the spherical eye joint is installed on the outer wall of one side of the inclined support plate.

[0010] Preferably, the wide-width double-direction anti-offset feeding structure is located inside the conveyor belt. The wide-width double-direction anti-offset feeding structure includes support frames fixed at both ends inside the front double-layer conveyor rack, a bidirectional lead screw rotatably installed inside the support frame, and nut pairs installed at the threaded positions at both ends of the surface of the bidirectional lead screw. Slide plates slidably matched with the bottom of the support frame are fixed on the outer walls of the nut pairs. Two connecting rods are fixed on the outer wall of one side of the slide plate. Rectifying plates are fixed at the ends of the four connecting rods in the same X-axis direction. A belt drive module for driving the two bidirectional lead screws to rotate synchronously and in the same direction is also installed inside the front double-layer conveyor rack.

[0011] Preferably, the belt drive module includes a synchronous belt drive structure I installed between the same ends of the two bidirectional lead screws and a servo motor installed on the outer wall of one side of the front double-layer conveyor rack for driving one of the bidirectional lead screws to rotate. The input end of the servo motor is electrically connected to the output end of the control panel in the inkjet printer.

[0012] Preferably, the negative-pressure air intake structure includes a rectangular empty shell installed inside the front double-layer conveyor rack, a plurality of flat-mouth exhaust pipes installed on the outer wall of one side of the rectangular empty shell, and an opening part provided at the top end of the rectangular empty shell. The rectangular empty shell is located inside the conveyor belt. The series-connected centrifugal exhaust mechanism includes a centrifugal fan installed at the end of the flat-mouth exhaust pipe away from the rectangular empty shell, a J-shaped pipe installed at the lower air outlet of the centrifugal fan, and a main pipe installed at the upper end of the J-shaped pipe. The main pipe extends along the X-axis direction and is connected to the air inlet end of the heat conduction air box. A synchronous belt drive structure II for power connection is installed between the plurality of centrifugal fans in the X-axis direction and the end of the front belt roller.

[0013] Preferably, a hollow air duct communicating with one end of the main pipe is installed on an outer wall of one side of the heat conducting air box. An electric heating wire is installed inside the hollow air duct. The input end of the electric heating wire is electrically connected to the output end of the control panel in the inkjet printer. A temperature sensor is installed on one side inside the heat conducting air box. The output end of the temperature sensor is electrically connected to the input end of the control panel in the inkjet printer. A ventilation slot is provided on the outer wall of the other side of the heat conducting air box.

[0014] The present invention also provides a usage method of an automatic typesetting printer. For the automatic typesetting printer as described above, it includes the following steps: S101: Traction the leading end of the printing material on the external reel and pass it through the pneumatic thickness compensation pressing mechanism. The operator manually flattens the material to the starting ends of the multi-belt feeding and conveying mechanism and the pneumatic thickness compensation pressing mechanism, and introduces the leading end of the printing material into the inkjet printer. The operator controls the wide-width bidirectional anti-offset feeding structure and the pneumatic thickness compensation pressing mechanism to work through the control panel on the inkjet printer. The two moving ends of the wide-width bidirectional anti-offset feeding structure are in contact with the front and rear sides of the large-format printing material to achieve the purpose of horizontal deviation correction. The pneumatic thickness compensation pressing mechanism adjusts according to the material thickness to ensure that the material is evenly pressed and prevent wrinkling or creasing; S102: Start the inkjet printer for printing and the rotation drive unit for supplying driving force. At this time, the rotation drive unit speeds up to the set speed. The multi-belt feeding and conveying mechanism conveys the material at a constant speed. The series-type centrifugal exhaust mechanism synchronously receives the torque of the rotation drive unit. The suction force at the negative pressure intake structure at the air inlet end of the series-type centrifugal exhaust mechanism linearly increases with the conveying speed, so that the large-format printing material is closely attached to the multi-belt feeding and conveying mechanism throughout the process; S103: When the large-format printing material is printed and separated from the printing area of the inkjet printer, the air outlet end of the series-type centrifugal exhaust mechanism introduces high-speed air flow into the heat conducting air box. The heat conducting air box evenly covers the discharging area above the discharging port of the inkjet printer to form a wide-format drying field. The staff visually inspects the drying effect of the leading section of the printing material. The solvent ink surface should be matte and non-sticky, and the UV ink surface should not deform after finger pressure. After confirming that it meets the standard, start the automatic winding program of the inkjet printer; S104: After the printing operation is completed, the pneumatic thickness compensation pressing mechanism releases the clamping force, and the rotation drive unit, the multi-belt feeding and conveying mechanism, and the series-type centrifugal exhaust mechanism stop working until the temperature in the heat conducting air box drops to the safety threshold. Finally, reset the wide-width bidirectional anti-offset feeding structure to the initial position to complete the production cycle.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The automatic typesetting printing machine and its usage method are provided with a rotation drive unit, a multi-belt feeding and conveying mechanism, a pneumatic thickness compensation pressing mechanism, a wide-width two-way anti-offset feeding structure, a negative-pressure air intake structure, a series-type centrifugal exhaust mechanism, a heat conduction air box and other cooperating structures. The large-format printing material is fed into the inkjet printer by the rotation drive unit, the multi-belt feeding and conveying mechanism and the pneumatic thickness compensation pressing mechanism for continuous printing. During the conveying process, the wide-width two-way anti-offset feeding structure reduces the horizontal offset of the large-format printing material. The series-type centrifugal exhaust mechanism also receives the power from the rotation drive unit, and the negative-pressure air intake structure continuously generates a downward suction force on the printing material, so that the front and rear sides of the paper before printing have a downward adhesion force. The exhaust end of the series-type centrifugal exhaust mechanism continuously supplies hot air to the printed material through the heat conduction air box to promote the drying and curing of the ink, thus forming a "stable conveying before the reel and drying and curing after the reel" linkage scheme. Among them, the rotation drive unit and the multi-belt paper feeding mechanism form a rigid conveying framework, completely eliminating the local wrinkles of the material caused by traditional single-point traction. The pneumatic thickness compensation pressing mechanism dynamically adapts to different media (such as concave-convex cloth surfaces and smooth PVC), making the material always in a tight and non-relaxed state, creating an ideal plane for inkjet positioning. The wide-width two-way anti-offset structure locks the horizontal freedom of the material like an invisible grid, and the transverse displacement trend is offset in real time through the two-way deviation correction pulley group. The triple stability mechanism fundamentally eliminates material jitter, snake-like movement or local suspension, ensuring the edge sharpness of ultra-fine text and gradient colors. The series-type centrifugal exhaust mechanism not only receives the power from the rotation drive unit, ensuring the stable operation of exhaust and air supply, but also applies a continuous downward suction force to the printing material through the negative-pressure air intake structure. This suction force can closely adhere to the front and rear sides of the material, preventing the material from horizontally offsetting or warping during conveying and printing, and ensuring the alignment accuracy of the printing area. Secondly, the exhaust end of the series-type centrifugal exhaust mechanism is equipped with a heat conduction air box, which continuously supplies hot air to the printed material to promote the rapid drying and curing of the ink. During this process, the power of the series-type centrifugal exhaust mechanism directly comes from the mechanical kinetic energy conversion of the conveying mechanism and the rotation drive unit. The temperature field automatically matches the conveying speed, avoiding local under-drying caused by thermal inertia during high-speed printing. At this time, the wind generated by the series-type centrifugal exhaust mechanism penetrates from top to bottom through the heat conduction air box, realizing three-dimensional drying from the ink layer to the bottom layer of the medium, so that the printing material reaches a uniform and safe curing state before being wound up at the outlet of the inkjet printer. The difference in solvent residue rate between the inner layers of the reel decreases, fundamentally eliminating the phenomena of ink bleeding, bleeding and back sticking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is the three-dimensional structural schematic of the present inventionFigure 1 ; Figure 3 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ; Figure 4 Schematic diagram of the three-dimensional structure of the present invention Figure 3 ; Figure 5 Schematic diagram of the front view sectional structure of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the present invention Figure 4 ; Figure 7 Schematic diagram of the three-dimensional sectional structure of the second embodiment of the present invention; Figure 8 For the present invention Figure 7 Enlarged structure diagram at position A in; Figure 9 Schematic diagram of the three-dimensional structure of the third embodiment of the present invention; Figure 10 Schematic diagram of the three-dimensional structure after the inkjet printer of the fourth embodiment of the present invention is removed; Figure 11 Schematic diagram of the three-dimensional structure of the negative pressure intake structure of the fourth embodiment of the present invention; Figure 12 Schematic diagram of the three-dimensional structure of the series-connected centrifugal exhaust mechanism of the fourth embodiment of the present invention; Figure 13 Schematic diagram of the three-dimensional sectional structure of the series-connected centrifugal exhaust mechanism of the fourth embodiment of the present invention; Figure 14 Schematic diagram of the three-dimensional structure of the conveyor belt of the fourth embodiment of the present invention.

[0017] In the figure: 1. Front double-layer conveying rack; 2. Inkjet printer; 3. Multi-belt feeding and conveying mechanism; 301. Roller support seat; 302. Front belt roller; 303. Rear belt roller; 304. Conveyor belt; 305. Hollow triangular beam; 306. Square-opening longitudinal beam; 4. Rotary drive unit; 5. Pneumatic thickness compensation pressing mechanism; 501. Diagonal bracing plate; 502. Support shaft; 503. T-shaped shaft seat; 504. Round pin; 505. Rotating shaft; 506. Rubber wheel; 507. Cylinder; 6. Wide-width double-direction anti-offset feeding structure; 601. Support frame; 602. Double-direction screw rod; 603. Slide plate; 604. Nut pair; 605. Connecting rod; 606. Deviation rectifying plate; 7. Belt pulley drive module; 701. Servo motor; 702. Synchronous belt drive structure I; 8. Negative-pressure air intake structure; 801. Rectangular empty shell; 802. Flat-opening exhaust pipe; 803. Opening part; 9. Series-type centrifugal exhaust mechanism; 901. Centrifugal fan; 902. J-shaped pipe; 903. Main pipe; 904. Synchronous belt drive structure II; 10. Heat conduction air box; 1001. Hollow air duct; 1002. Electric heating wire; 1003. Temperature sensor; 1004. Ventilation slot. Specific implementation mode

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1 is given by Figures 1 to 6 The present invention includes a front double-layer conveying rack 1. One side of the front double-layer conveying rack 1 is provided with an inkjet printer 2, and a multi-belt feeding and conveying mechanism 3 for feeding printing materials into the inkjet printer 2 in the X-axis direction is installed inside the front double-layer conveying rack 1. One side of the top of the front double-layer conveying rack 1 is installed with a pneumatic thickness compensation pressing mechanism 5. A wide-width double-direction anti-offset feeding structure 6 for adjusting the spacing according to the width specification of the printing materials is also installed inside the front double-layer conveying rack 1. One side of the back of the front double-layer conveying rack 1 is installed with a rotary drive unit 4 for driving the multi-belt feeding and conveying mechanism 3 to work. The series-connected centrifugal exhaust mechanism 9 is arranged on the front and rear outer walls of the front double-layer conveying rack 1. The series-connected centrifugal exhaust mechanism 9 and the multi-belt feeding and conveying mechanism 3 are in power connection. On one side inside the front double-layer conveying rack 1, a negative-pressure intake structure 8 connected to the air inlet end of the series-connected centrifugal exhaust mechanism 9 is installed. On the top of the inkjet printer 2, a thermal air duct 10 is installed. The air outlet end of the thermal air duct 10 is inclined downward, and the air inlet end of the thermal air duct 10 is connected to the air outlet end of the series-connected centrifugal exhaust mechanism 9. The input ends of the rotary drive unit 4, the pneumatic thickness compensation pressing mechanism 5, the wide-width double-direction anti-offset feeding structure 6, and the thermal air duct 10 are all electrically connected to the output end of the control panel in the inkjet printer 2; The rotary drive unit 4 uses a stepping motor, which is controlled by the control panel of the inkjet printer 2 to control the stepping motor to work according to the set direction, speed, angle, and response time. At this time, the output end of the stepping motor is directly related to the conveying speed of the multi-belt feeding and conveying mechanism 3, the negative pressure intensity of the negative-pressure intake structure 8, and the hot air flow of the thermal air duct 10, avoiding insufficient drying energy during high-speed printing; The multi-belt feeding and conveying mechanism 3 includes two roller support seats 301 fixed on the left outer wall of the front double-layer conveying rack 1, a front belt roller 302 rotatably installed between the two roller support seats 301 through bearings, and a rear belt roller 303 rotatably installed on the right outer wall of the front double-layer conveying rack 1. Between the front belt roller 302 and the rear belt roller 303, two mirror-symmetrical conveyor belts 304 are sleeved. The drive shaft of the rotary drive unit 4 drives the front belt roller 302 between the two roller support seats 301 in the Y-axis direction to rotate through a coupling. The two conveyor belts 304 are driven to rotate by the front belt roller 302 and the rear belt roller 303. The two conveyor belts 304 can disperse the pressure, increase the conveying stability of the printing material, reduce the load of a single conveyor belt 304 at the same time, and expose the front and rear edges and the middle position of the large-format printing material; Square-mouth longitudinal beams 306 are fixed on both sides inside the front double-layer conveying rack 1. A hollow triangular beam 305 is fixed on the outer wall of the front double-layer conveying rack 1 on one side of the rear belt roller 303. The upper surfaces of the square-mouth longitudinal beam 306 and the hollow triangular beam 305 are in contact with the top wall of the conveyor belt 304. The hollow triangular beam 305 and the square-mouth longitudinal beam 306 can support the top of the conveyor belt 304, so that the printing material has no sag deformation during conveying, especially ensuring the flatness of ultra-thin paper or elastic fabric during high-speed operation.

[0020] The usage method of an automatic typesetting printer in this embodiment, such as the above-mentioned automatic typesetting printer, includes the following steps: S101: Traction the leading end of the printing material on the external reel, pass it through the pneumatic thickness compensation pressure feeding mechanism 5. The operator manually flattens the material to the starting ends of the multi-belt feeding and conveying mechanism 3 and the pneumatic thickness compensation pressure feeding mechanism 5, and introduces the leading end of the printing material into the inkjet printer 2. The operator controls the wide-format two-way anti-offset feeding structure 6 and the pneumatic thickness compensation pressure feeding mechanism 5 to work through the control panel on the inkjet printer 2. The two moving ends of the wide-format two-way anti-offset feeding structure 6 are in contact with the front and rear sides of the large-format printing material to achieve the purpose of horizontal deviation correction. The pneumatic thickness compensation pressure feeding mechanism 5 is adjusted according to the material thickness to ensure that the material is evenly pressed and prevent wrinkling or creasing; S102: Start the inkjet printer 2 for printing and the rotation drive unit 4 for driving force supply. At this time, the rotation drive unit 4 speeds up to the set speed, and the multi-belt feeding and conveying mechanism 3 conveys the material at a constant speed. The series-type centrifugal exhaust mechanism 9 synchronously receives the torque of the rotation drive unit 4. The suction force at the negative pressure intake structure 8 at the air inlet end of the series-type centrifugal exhaust mechanism 9 increases linearly with the conveying speed, so that the large-format printing material is closely attached to the multi-belt feeding and conveying mechanism 3 throughout the process; S103: When the large-format printing material completes printing and exits the printing area of the inkjet printer 2, the air outlet end of the series-type centrifugal exhaust mechanism 9 introduces high-speed air flow into the heat conduction air box 10. The heat conduction air box 10 evenly covers the discharging area above the discharging port of the inkjet printer 2 to form a wide-format drying field. The staff visually inspects the drying effect of the first section of the printing material. The solvent ink surface should be matte and non-sticky, and the UV ink surface should not deform after finger pressure. After confirming compliance, start the automatic winding program of the inkjet printer 2; S104: After the printing operation is completed, the pneumatic thickness compensation pressure feeding mechanism 5 releases the clamping force, and the rotation drive unit 4, the multi-belt feeding and conveying mechanism 3, and the series-type centrifugal exhaust mechanism 9 stop working until the temperature in the heat conduction air box 10 drops to the safety threshold. Finally, reset the wide-format two-way anti-offset feeding structure 6 to the initial position to complete the production cycle.

[0021] Example 2, on the basis of Example 1, by Figure 7 and Figure 8Given that the pneumatic thickness compensation pressure feeding mechanism 5 includes two diagonal support plates 501 fixed at the left top edge position of the front double-layer conveyor rack 1, a support shaft 502 fixed between the two diagonal support plates 501, T-shaped shaft seats 503 movably sleeved at both ends of the surface of the support shaft 502, and a rotating shaft 505 rotatably installed between the two T-shaped shaft seats 503. The rotating shaft 505 is located obliquely above the right side of the front belt roller 302. A number of rubber wheels 506 are fixed on the surface of the rotating shaft 505. The flexible property of the rubber wheels 506 can avoid mechanical damage to sensitive media by hard pressure rollers. On one outer wall of the diagonal support plate 501, there is a cylinder 507 for controlling the T-shaped shaft seat 503 to swing around the central axis of the support shaft 502. The input end of the cylinder 507 is electrically connected to the output end of the control panel in the inkjet printer 2; The bottom of the cylinder 507 is hinged to one outer wall of the diagonal support plate 501. The top end of the piston rod of the cylinder 507 is fixed with a spherical eye joint. A round pin 504 hinged to the spherical eye joint is installed on one outer wall of the diagonal support plate 501. When the conveyor belt 304 continuously conveys printing materials into the inkjet printer 2, the staff adjusts the distance between the rubber wheel 506 and the upper surface of the conveyor belt 304 according to the thickness of the printing materials. At this time, the cylinder 507 is controlled to work through the control panel in the inkjet printer 2, so that the top end of the piston rod of the cylinder 507 drives the round pin 504 to move downward through the spherical eye joint. Since the T-shaped shaft seat 503 is sleeved on the support shaft 502, then the round pin 504, the T-shaped shaft seat 503, the rotating shaft 505, and the rubber wheel 506 swing downward around the support shaft 502 to adjust the distance between the rubber wheel 506 and the conveyor belt 304, ensuring that the printing materials are evenly pressed and reducing the occurrence of wrinkling or creasing.

[0022] Embodiment 3, based on Embodiment 2, Figure 9 Given that the wide-width double-direction anti-offset feeding structure 6 is located inside the conveyor belt 304. The wide-width double-direction anti-offset feeding structure 6 includes support frames 601 fixed at both ends inside the front double-layer conveyor rack 1, a bidirectional lead screw 602 rotatably installed inside the support frames 601, and nut pairs 604 installed at the threaded positions at both ends of the surface of the bidirectional lead screw 602. A slide plate 603 slidably matched with the bottom of the support frame 601 is fixed on the outer wall of the nut pair 604. Two connecting rods 605 are fixed on one outer wall of the slide plate 603. Deviation correction plates 606 are fixed at the ends of the four connecting rods 605 in the same X-axis direction. A belt drive module 7 for driving the two bidirectional lead screws 602 to rotate synchronously in the same direction is also installed inside the front double-layer conveyor rack 1. The belt drive module 7 includes a synchronous belt drive structure one 702 installed between the same ends of the two bidirectional lead screws 602 and a servo motor 701 installed on one outer wall of the front double-layer conveyor rack 1 for driving one of the bidirectional lead screws 602 to rotate. The input end of the servo motor 701 is electrically connected to the output end of the control panel in the inkjet printer 2; The servo motor 701 is controlled by the control panel of the inkjet printer 2 to work. The servo motor 701 provides rotational power to the bidirectional lead screw 602 in the two support frames 601 through the synchronous belt drive structure one 702. The bidirectional lead screw 602 drives the nut pairs 604 at both ends of itself to move linearly towards each other. Then, the two sliding plates 603 approach or move away from each other in the Y-axis direction, thereby adjusting the distance between the two deviation rectifying plates 606 in the Y-axis direction. Thus, fine adjustment can be carried out during the material conveying process through the bidirectional adjustment mechanism, and at the same time, it can effectively offset the snake-like movement caused by the stress release of the material itself or the air flow disturbance, ensuring that the material always maintains a horizontal and accurate inkjet position.

[0023] Embodiment 4, on the basis of Embodiment 2, consists of Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14 given. The negative pressure intake structure 8 includes a rectangular empty shell 801 installed inside the front double-layer conveyor rack 1, several flat-mouth exhaust pipes 802 installed on one outer wall of the rectangular empty shell 801, and an opening 803 provided at the top of the rectangular empty shell 801. The rectangular empty shell 801 is located inside the conveyor belt 304. The series-connected centrifugal exhaust mechanism 9 includes a centrifugal fan 901 installed at one end of the flat-mouth exhaust pipe 802 away from the rectangular empty shell 801, a J-shaped pipe 902 installed at the lower air outlet of the centrifugal fan 901, and a main pipe 903 installed at the upper end of the J-shaped pipe 902. The main pipe 903 extends in the X-axis direction and is connected to the air inlet end of the heat conduction air box 10. A synchronous belt drive structure two 904 for power connection is installed between the multiple centrifugal fans 901 in the X-axis direction and the end of the front belt roller 302. When the series-connected centrifugal exhaust mechanism 9 is working, the input shaft of the centrifugal fan 901 and the end of the front belt roller 302 are in power transmission through the synchronous belt drive structure two 904. Then, the multiple centrifugal fans 901 on the same side receive the rotational power from the front belt roller 302 by using the synchronous belt drive structure two 904. The air intake port of the centrifugal fan 901 sucks air through the flat-mouth exhaust pipe 802 and the rectangular empty shell 801, so as to generate a uniform negative pressure field below the conveyor belt 304 and the printing material by using the opening 803 at the top of the rectangular empty shell 801 to eliminate material warping; The synchronous belt drive structure two 904 includes a driving pulley installed at the end of the front belt roller 302 and a driven pulley installed on the input shaft of the centrifugal fan 901. In order to ensure that the centrifugal fan 901 obtains sufficient speed, the outer diameter of the driving pulley can be made much larger than the outer diameter of the driven pulley to achieve the purpose of speed-increasing transmission. Through holes can be provided on the outer surface of the conveyor belt 304 so that the suction force generated at the opening 803 can act on the printing material; The exhaust port of the centrifugal fan 901 sends the generated wind force into the J-shaped pipe 902 and then into the main pipe 903, and the main pipe 903 sends the wind force into the thermal air duct 10; A hollow air pipe 1001 communicating with one end of the main pipe 903 is installed on one outer wall of the thermal air duct 10. An electric heating wire 1002 is installed inside the hollow air pipe 1001. The input end of the electric heating wire 1002 is electrically connected to the output end of the control panel in the inkjet printer 2. A temperature sensor 1003 is installed on one side inside the thermal air duct 10. The output end of the temperature sensor 1003 is electrically connected to the input end of the control panel in the inkjet printer 2. A ventilation slot 1004 is provided on the other outer wall of the thermal air duct 10. The electric heating wire 1002 heats the air in the hollow air pipe 1001 and the main pipe 903, so that the heated air is sent into the thermal air duct 10. The temperature sensor 1003 continuously monitors the temperature in the thermal air duct 10. At this time, the hot air is discharged through the ventilation slot 1004 on the outer wall of the thermal air duct 10. The hot air blows downward onto the printing material and penetrates the fiber gaps of the material, forming a turbulent flow under the ink layer, achieving the effect of drying the ink.

[0024] When the embodiment of the present application is in use, first, the staff checks whether the power supply and control system of the inkjet printer 2 are properly connected. Then, the rotation drive unit 4 and the multi-belt feeding and conveying mechanism 3 are inspected to ensure that they are not damaged, there is no foreign object jamming, and each drive part operates flexibly. Special attention should be paid to the pneumatic thickness compensation pressing mechanism 5 to confirm that its pressure adjustment is normal and can adapt to materials of different thicknesses. The wide-width bidirectional anti-offset feeding structure 6 should also be inspected and debugged to ensure that its adjustment mechanism is sensitive and firmly fastened to prevent the large-format printing material from offsetting during transportation. The leading end of the printing material on the external reel is pulled and passed through the pneumatic thickness compensation pressing mechanism 5. The operator manually flattens the material to the starting ends of the multi-belt feeding and conveying mechanism 3 and the pneumatic thickness compensation pressing mechanism 5, and introduces the leading end of the printing material into the inkjet printer 2. The paper pressing mechanism in the inkjet printer 2 bites the edge of the material to achieve initial tension locking. The operator controls the wide-width bidirectional anti-offset feeding structure 6 and the pneumatic thickness compensation pressing mechanism 5 to work through the control panel on the inkjet printer 2. The two moving ends of the wide-width bidirectional anti-offset feeding structure 6 are in contact with the front and rear sides of the large-format printing material to achieve the purpose of horizontal deviation correction. The pneumatic thickness compensation pressing mechanism 5 adjusts according to the material thickness to ensure that the material is evenly pressed and prevent wrinkling or creasing. The staff sets the inkjet parameters on the control panel of the inkjet printer 2, including the nozzle speed, inkjet density, and inkjet area size. Then, the inkjet printer 2 is started for printing and the rotation drive unit 4 supplies driving force. At this time, the rotation drive unit 4 speeds up to the set rotation speed, and the multi-belt feeding and conveying mechanism 3 conveys the material at a constant speed. The series-connected centrifugal exhaust mechanism 9 synchronously receives the torque of the rotation drive unit 4. The suction force at the negative-pressure intake structure 8 at the air inlet end of the series-connected centrifugal exhaust mechanism 9 increases linearly with the conveying speed, making the large-format printing material closely adhere to the multi-belt feeding and conveying mechanism 3 throughout the process, eliminating suspended tremors. And when the large-format printing material enters the printing area of the inkjet printer 2, the pneumatic thickness compensation pressing mechanism 5 and the wide-width bidirectional anti-offset feeding structure 6 always guide the transportation of the printing material. When the large-format printing material is printed and exits the printing area of the inkjet printer 2, the air outlet end of the series-connected centrifugal exhaust mechanism 9 introduces high-speed airflow into the heat conduction air box 10. The heat conduction air box 10 evenly covers the discharge area above the discharge port of the inkjet printer 2 to form a wide-width drying field. The staff visually inspects the drying effect of the first section of the printing material. The solvent ink surface should be matte and non-sticky, and the UV ink surface should not deform after finger pressure. After confirming that it meets the standards, the automatic winding program of the inkjet printer 2 is started. At this time, the winding speed of the winding machine of the inkjet printer 2 needs to match the rotation drive unit 4 to avoid phenomena such as un-dried ink, ink bleeding, and smudging caused by too fast winding.After the printing operation is completed, the pneumatic thickness compensation pressure mechanism 5 releases the clamping force, and the rotary drive unit 4, the multi-belt feeding and conveying mechanism 3, and the series-type centrifugal exhaust mechanism 9 stop working until the temperature in the heat conduction air box 10 drops to the safety threshold. Finally, the wide-width bidirectional anti-offset feeding structure 6 is reset to the initial position to complete the production cycle.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic typesetting printing machine, characterized in that, Including: A front double-layer conveying rack (1), on one side of the front double-layer conveying rack (1) is provided with a spray printer (2), and inside the front double-layer conveying rack (1) is installed a multi-belt feeding and conveying mechanism (3) for feeding printing materials into the spray printer (2) in the X-axis direction. On one side of the top of the front double-layer conveying rack (1) is installed a pneumatic thickness compensation pressing mechanism (5). Inside the front double-layer conveying rack (1) is also installed a wide-width surface two-way anti-offset feeding structure (6) for adjusting the spacing according to the width specification of the printing materials. On one side of the back of the front double-layer conveying rack (1) is installed a rotary drive unit (4) that drives the multi-belt feeding and conveying mechanism (3) to work; A series-connected centrifugal exhaust mechanism (9), the series-connected centrifugal exhaust mechanism (9) is arranged on the front and rear outer walls of the front double-layer conveying rack (1). The series-connected centrifugal exhaust mechanism (9) and the multi-belt feeding and conveying mechanism (3) are in power connection. On one side inside the front double-layer conveying rack (1) is installed a negative-pressure air intake structure (8) connected to the air inlet end of the series-connected centrifugal exhaust mechanism (9). On the top of the spray printer (2) is installed a heat conduction air box (10). The air outlet end of the heat conduction air box (10) is inclined downward. The air inlet end of the heat conduction air box (10) is connected to the air outlet end of the series-connected centrifugal exhaust mechanism (9). The input ends of the rotary drive unit (4), the pneumatic thickness compensation pressing mechanism (5), the wide-width surface two-way anti-offset feeding structure (6), and the heat conduction air box (10) are all electrically connected to the output end of the control panel in the spray printer (2).

2. An automatic typesetting and printing machine according to claim 1, characterized in that: The multi-belt feeding and conveying mechanism (3) includes two roller support seats (301) fixed on the left outer wall of the front double-layer conveying rack (1), a front belt roller (302) rotatably installed between the two roller support seats (301) through bearings, and a rear belt roller (303) rotatably installed on the right outer wall of the front double-layer conveying rack (1). Between the front belt roller (302) and the rear belt roller (303) are sleeved two conveyor belts (304) with a mirror-symmetric structure.

3. An automatic typesetting and printing machine according to claim 2, characterized in that: On both sides inside the front double-layer conveying rack (1) are fixed square-mouth longitudinal beams (306). On one side of the rear belt roller (303), on the outer wall of the front double-layer conveying rack (1) is fixed a hollow triangular beam (305). The upper surfaces of the square-mouth longitudinal beams (306) and the hollow triangular beam (305) are all in contact with the top wall of the conveyor belt (304).

4. An automatic typesetting and printing machine according to claim 2, characterized in that: The pneumatic thickness compensation blank holder mechanism (5) includes two inclined support plates (501) fixed at the left top edge position of the front double-layer conveyor frame (1), a support shaft (502) fixed between the two inclined support plates (501), T-shaped shaft seats (503) movably sleeved at both ends of the surface of the support shaft (502), and a rotating shaft (505) rotatably installed between the two T-shaped shaft seats (503). The rotating shaft (505) is located obliquely above the right side of the front belt roller (302). A plurality of rubber wheels (506) are fixed on the surface of the rotating shaft (505). A cylinder (507) for controlling the yaw of the T-shaped shaft seat (503) around the central axis of the support shaft (502) is installed on the outer wall of one side of the inclined support plate (501). The input end of the cylinder (507) is electrically connected to the output end of the control panel in the inkjet printer (2).

5. An automatic typesetting printing machine according to claim 4, characterized in that: The bottom of the cylinder (507) is hinged to the outer wall of one side of the inclined support plate (501). The top end of the piston rod of the cylinder (507) is fixed with a spherical eye joint. A round pin (504) hinged to the spherical eye joint is installed on the outer wall of one side of the inclined support plate (501).

6. An automatic typesetting printing machine according to claim 2, characterized in that: The wide-width bidirectional anti-offset feeding structure (6) is located inside the conveyor belt (304). The wide-width bidirectional anti-offset feeding structure (6) includes support frames (601) fixed at both ends inside the front double-layer conveyor frame (1), a bidirectional lead screw (602) rotatably installed inside the support frames (601), and nut pairs (604) installed at the threaded positions at both ends of the surface of the bidirectional lead screw (602). Sliding plates (603) slidably matched with the bottom of the support frames (601) are fixed on the outer walls of the nut pairs (604). Two connecting rods (605) are fixed on the outer wall of one side of the sliding plate (603). Deviation correction plates (606) are fixed at the ends of the four connecting rods (605) in the same X-axis direction. A belt drive module (7) for driving the two bidirectional lead screws (602) to rotate synchronously and in the same direction is also installed inside the front double-layer conveyor frame (1).

7. An automatic typesetting and printing machine according to claim 6, characterized in that: The belt drive module (7) includes a synchronous belt drive structure one (702) installed between the same ends of the two bidirectional lead screws (602) and a servo motor (701) installed on the outer wall of one side of the front double-layer conveyor frame (1) for driving one of the bidirectional lead screws (602) to rotate. The input end of the servo motor (701) is electrically connected to the output end of the control panel in the inkjet printer (2).

8. An automatic typesetting printing machine according to claim 6, characterized in that: The negative-pressure air intake structure (8) includes a rectangular empty shell (801) installed inside the front double-layer conveyor rack (1), several flat-mouth exhaust pipes (802) installed on one outer wall of the rectangular empty shell (801), and an opening (803) provided at the top of the rectangular empty shell (801). The rectangular empty shell (801) is located inside the conveyor belt (304). The series-connected centrifugal exhaust mechanism (9) includes a centrifugal fan (901) installed at one end of the flat-mouth exhaust pipe (802) away from the rectangular empty shell (801), a J-shaped pipe (902) installed at the lower air outlet of the centrifugal fan (901), and a main pipe (903) installed at the upper end of the J-shaped pipe (902). The main pipe (903) extends in the X-axis direction and is connected to the air inlet end of the heat conduction air box (10). A synchronous belt drive structure two (904) for power connection is installed between the plurality of centrifugal fans (901) in the X-axis direction and the end of the front belt roller (302).

9. An automatic typesetting printing machine according to claim 8, characterized in that: A hollow air pipe (1001) connected to one end of the main pipe (903) is installed on one outer wall of the heat conduction air box (10). An electric heating wire (1002) is installed inside the hollow air pipe (1001). The input end of the electric heating wire (1002) is electrically connected to the output end of the control panel in the inkjet printer (2). A temperature sensor (1003) is installed on one side inside the heat conduction air box (10). The output end of the temperature sensor (1003) is electrically connected to the input end of the control panel in the inkjet printer (2). A ventilation slot (1004) is provided on the other outer wall of the heat conduction air box (10).

10. A method of using an automatic typesetting printing machine, including the automatic typesetting printing machine according to any one of claims 1-9, characterized in that: It includes the following steps: S101: Traction the leading end of the printing material on the external reel, pass it through the pneumatic thickness compensation pressing mechanism (5). The operator manually flattens the material to the starting ends of the multi-belt feeding and conveying mechanism (3) and the pneumatic thickness compensation pressing mechanism (5), and introduces the leading end of the printing material into the inkjet printer (2). The operator controls the wide-width two-way anti-offset feeding structure (6) and the pneumatic thickness compensation pressing mechanism (5) to work through the control panel on the inkjet printer (2). The two moving ends of the wide-width two-way anti-offset feeding structure (6) are in contact with the front and rear sides of the large-format printing material to achieve the purpose of horizontal deviation correction. The pneumatic thickness compensation pressing mechanism (5) is adjusted according to the material thickness to ensure that the material is evenly pressed to prevent wrinkling or creasing. S102: Start the inkjet printer (2) for printing and the rotation drive unit (4) for supplying driving force. At this time, the rotation drive unit (4) speeds up to the set speed. The multi-belt feeding and conveying mechanism (3) conveys the material at a constant speed. The series-connected centrifugal exhaust mechanism (9) synchronously receives the torque of the rotation drive unit (4). The suction force at the negative-pressure air intake structure (8) at the air inlet end of the series-connected centrifugal exhaust mechanism (9) linearly increases with the conveying speed, so that the large-format printing material is closely attached to the multi-belt feeding and conveying mechanism (3) throughout the process. S103: When the large-format printing material finishes printing and exits the printing area of the inkjet printer (2), the air outlet end of the series-connected centrifugal exhaust mechanism (9) introduces high-speed air flow into the thermal air guide box (10). The thermal air guide box (10) evenly covers the discharge area above the discharge port of the inkjet printer (2) to form a wide-format drying field. The operator visually inspects the drying effect of the first section of the printing material. The solvent ink surface should be matte and non-sticky, and the UV ink surface should not deform under finger pressure. After confirming that it meets the standards, start the automatic winding program of the inkjet printer (2); S104: After the printing operation is completed, the pneumatic thickness compensation pressure mechanism (5) releases the clamping force, and the rotary drive unit (4), the multi-belt feeding and conveying mechanism (3), and the series-connected centrifugal exhaust mechanism (9) stop working until the temperature in the thermal air guide box (10) drops to the safety threshold. Finally, reset the wide-width two-way anti-offset feeding structure (6) to the initial position to complete the production cycle.

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