Solvent-free intaglio printing device with cleaning mechanism

Abstract

The invention discloses a solvent-free intaglio printing device with a cleaning mechanism, and belongs to the technical field of intaglio printing, the solvent-free intaglio printing device comprises a rack, and a material cleaning assembly and a material scraping assembly are arranged on the inner side wall of the rack; according to the printing ink cleaning device, a material cleaning assembly is arranged, when a lead screw sleeve moves, a material cleaning plate is driven by a fixed rod to move on the upper surface of a scraping plate, printing ink on the scraping plate is scraped to the two sides of the scraping plate, the printing ink falls into an ink collecting box, a movable plate vibrates up and down in a sliding groove through a sliding block, and the movable plate can knock a supporting rod; the knocked supporting rod can convey vibration force to the material cleaning plate, ink adhering to the material cleaning plate is vibrated into the ink collecting box, the ink on the material scraping assembly is cleaned, the cleaning degree of the ink on the printing roller by the material scraping assembly is guaranteed, the conditions that the ink at the printing position is not prone to drying and printing is fuzzy due to accumulation of the ink are avoided, and the printing quality is improved. And therefore, the ink uniformity of the printing roller during paper printing is improved, and the printing quality of the intaglio printing device is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of intaglio printing, and particularly relates to a solvent-free intaglio printing device with a cleaning mechanism. Background Art

[0002] An intaglio printing press is a machine that uses an intaglio plate for printing. The graphic part of the printing plate is recessed, and the blank part is on the same plane as the outer circumference of the printing plate cylinder. The intaglio printing press uses a direct printing method of cylinder against cylinder. The printing plate is directly made on the printing plate cylinder, and ink is supplied by dipping or inkjetting. There is no ink leveling mechanism. Since the ink layer is thick and fast-drying ink with strong volatility is used, a drying device is required.

[0003] After printing, the intaglio printing device needs to clean the printing roller to avoid ink accumulation, which may cause excessive ink printing in the subsequent process. At present, after the ink on the printing roller is cleaned by the intaglio printing device, the ink will accumulate on the cleaning mechanism, which is likely to cause the ink to flow out from the gap after excessive accumulation, and it will also cause the ink to be unable to be collected, resulting in ink waste. Therefore, a solvent-free intaglio printing device with a cleaning mechanism is provided. Summary of the Invention

[0004] The purpose of the present invention is to propose a solvent-free intaglio printing device with a cleaning mechanism to solve the problems that the current intaglio printing device cannot clean the cleaning mechanism and is prone to ink accumulation, resulting in a decline in printing quality.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A solvent-free intaglio printing device with a cleaning mechanism, including a frame. An ink box is fixedly installed on the inner bottom wall of the frame. An ink dipping roller and a printing roller are rotatably installed on the inner side wall of the frame. A part of the ink dipping roller extends into the ink box. The outer surface of the ink dipping roller is in contact with the outer surface of the printing roller. A material cleaning component and a scraping component are arranged on the inner side wall of the frame. A dust cleaning component is arranged on the side wall of the frame. An ink dipping component is arranged on the inner wall of the ink box; The material cleaning component includes a reciprocating lead screw. A driving motor is fixedly installed on the other side wall of the frame through an installation box. One end of the reciprocating lead screw is fixedly connected to the output end of the driving motor. The other end of the reciprocating lead screw extends outside the side wall of the frame. A lead screw sleeve is threadedly installed on the outer surface of the reciprocating lead screw. A fixing rod is fixedly installed on the lower surface of the lead screw sleeve. A material cleaning plate is fixedly installed at one end of the fixing rod.

[0006] As a further description of the above technical solution: A limit sleeve is fixedly installed on the upper surface of the lead screw sleeve. A limit rod is fixedly installed on the inner wall of the limit sleeve. The two ends of the limit rod are respectively fixedly connected to the inner walls on both sides of the frame. A support rod is fixedly installed on the upper surface of the limit sleeve. Positioning plates are fixedly installed on the inner walls on both sides of the frame. A support spring is fixedly installed on the lower surface of the positioning plate. One end of the support spring is fixedly installed with a movable plate.

[0007] As a further description of the above technical solution: A slider is fixedly installed on the side wall of the movable plate. Chute grooves are provided on the inner walls on both sides of the frame. The outer surface of the slider is slidably connected to the inner wall of the chute groove. A top block is fixedly installed on the lower surface of the movable plate. One end of the support rod is in contact with the lower surface of the movable plate.

[0008] As a further description of the above technical solution: The scraping component includes a fixed plate. The two ends of the fixed plate are respectively fixedly connected to the inner walls on both sides of the frame. A cylinder is fixedly installed on the side wall of the fixed plate. A scraping plate is fixedly installed at one end of the cylinder. The side wall of the scraping plate is in contact with the outer surface of the printing roller. The upper surface of the scraping plate is in contact with the lower surface of the cleaning plate. Ink collecting boxes are fixedly installed on the inner walls on both sides of the frame. The ink collecting boxes are adapted to the cleaning plate.

[0009] As a further description of the above technical solution: The ink dipping component includes a threaded rod and a rotating rod. One end of the threaded rod is rotatably connected to the inner side wall of the ink box. The other end of the threaded rod extends to the outside of the ink box. A worm gear is fixedly installed on the outer surface of the threaded rod. A moving rod is threadedly installed on the outer surface of the threaded rod. Travel blocks are fixedly installed at both ends of the moving rod. Travel grooves are provided on the inner walls on both sides of the ink box. The outer surface of the travel block is slidably connected to the inner wall of the travel groove.

[0010] As a further description of the above technical solution: A fixed spring is fixedly installed on the bottom inner wall of the ink box. A lifting plate is fixedly installed at one end of the fixed spring. The outer surface of the lifting plate is in close contact with the inner wall of the ink box. An inclined plate is fixedly installed on the lower surface of the lifting plate. The lower surface of the inclined plate is in contact with the upper surface of the moving rod.

[0011] As a further description of the above technical solution: An installation sleeve is rotatably installed on the outer surface of the rotating rod. The side wall of the installation sleeve is fixedly connected to the side wall of the frame. One end of the rotating rod is fixedly installed with a worm, the worm is meshed and connected with a worm gear. The other end of the rotating rod is fixedly installed with a driven bevel gear. The other end of the reciprocating lead screw is fixedly installed with a driving bevel gear, and the driving bevel gear is meshed and connected with the driven bevel gear.

[0012] As a further description of the above technical solution: The dust cleaning assembly includes an air outlet pipe. An air outlet is arranged on the outer surface of the air outlet pipe. One end of the air outlet pipe is fixedly installed with a connecting rod, and one end of the connecting rod is rotatably connected to the inner side wall of the frame. An air outlet is arranged on the outer surface of the air outlet pipe. The other end of the air outlet pipe is communicated and installed with an air inlet pipe. One end of the air inlet pipe extends to the outside of the frame. A driven sprocket is fixedly installed on the outer surface of the air inlet pipe. A driving sprocket is fixedly installed on the outer surface of the reciprocating lead screw. The driving sprocket and the driven sprocket are connected by a chain drive.

[0013] As a further description of the above technical solution: A wind box is fixedly installed on the side wall of the frame. A connecting spring is fixedly installed on the inner wall of the top surface of the wind box. One end of the connecting spring is fixedly installed with a piston plate. The outer surface of the piston plate is slidably connected to the inner wall of the wind box. A push rod is fixedly installed on the lower surface of the piston plate. One end of the push rod extends outside the lower surface of the wind box. A groove is arranged at one end of the push rod. A pulley is rotatably installed on the inner wall of the groove through a rotating shaft.

[0014] As a further description of the above technical solution: A connecting pipe is communicated and installed on the side wall of the wind box. An air suction pipe is communicated and installed on the other side wall of the wind box. An air path one-way valve is fixedly installed on the inner wall of the air suction pipe. One end of the connecting pipe is rotatably connected to one end of the air inlet pipe. A cam is fixedly installed on the outer surface of the air inlet pipe. A limiting groove is arranged on the outer surface of the cam. The outer surface of the pulley is slidably connected to the inner wall of the limiting groove.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, by providing a material cleaning component and a scraping component, the air cylinder drives the scraper to move, so that the side wall of the scraper fits the outer surface of the printing roller. Then, when the printing roller rotates, the scraper scrapes off the residual ink on the printing roller after printing. The driving motor drives the reciprocating lead screw to rotate. Under the action of the thread, the lead screw sleeve moves back and forth on the outer surface of the reciprocating lead screw under the limitation of the limiting sleeve and the limiting rod. When the lead screw sleeve moves, it drives the cleaning plate to move on the upper surface of the scraper through the fixed rod, thereby scraping the ink on the scraper to both sides of the scraper, so that the ink falls into the ink collecting box. When the lead screw sleeve moves, it also drives the support rod to move under the movable plate through the limiting sleeve. After the support rod contacts the top block, under the action of the support spring, the movable plate vibrates up and down through the slider in the chute. At this time, the movable plate will strike the support rod, and the struck support rod will transmit the vibration force to the cleaning plate, thereby vibrating the ink adhered to the cleaning plate into the ink collecting box, realizing the function of cleaning the ink on the outer surface of the printing roller, ensuring the uniformity of the ink during single printing, realizing the cleaning of the ink on the scraping component, ensuring the cleaning degree of the ink on the printing roller by the scraping component, avoiding the accumulation of ink causing the ink at the printing position to be not easily dried and resulting in blurred printing, and further improving the ink uniformity of the printing roller when printing on paper, ensuring the printing quality of the intaglio printing device.

[0016] 2. In the present invention, by providing an ink dipping component, when the driving bevel gear rotates, the driven bevel gear drives the rotating rod to rotate on the inner wall of the mounting sleeve. At this time, the rotating rod will drive the worm to rotate synchronously. At this time, under the action of the worm gear, the threaded rod rotates in the ink box. Under the action of the thread, the moving rod moves through the travel block in the travel groove. At this time, the moving rod moves towards one side of the ink box. As the moving rod moves, under the action of the inclined plate, the lifting plate will gradually move upwards above the ink box, thereby driving the ink to gradually move upwards. When the lifting plate reaches the top, it indicates that the ink volume in the ink box is small. At this time, the threaded rod is rotated in the reverse direction, so that the lifting plate moves downwards, and then ink is added to the ink box through the ink filling pipe. The ink of the intaglio printing device will move upwards with the increase of the use time, ensuring that the ink of the intaglio printing device is in full contact with the ink dipping roller during use, ensuring the printing clarity of the intaglio printing device, and further ensuring the working quality of the intaglio printing device.

[0017] 3. In the present invention, by providing a dust cleaning component, when the reciprocating lead screw rotates, it drives the driving tooth sprocket to rotate. Under the action of the tooth chain, the driven tooth sprocket drives the air inlet pipe to rotate synchronously. The air inlet pipe drives the air outlet pipe to rotate under the limit of the connecting rod. When the air inlet pipe rotates, it also drives the cam to rotate synchronously. Under the action of the pulley, the ejector rod drives the piston plate to move up and down in the air box under the action of the connecting spring. When the piston plate moves upward, it squeezes the gas in the air box. At this time, the gas flows into the air outlet pipe through the connecting pipe and the air inlet pipe, and then blows to the printing surface of the paper through the air outlet. When the piston plate moves downward, it sucks air into the air box through the suction pipe, realizing the function of cleaning the paper before printing, avoiding dust and other impurities from reducing the printing effect of the paper, reducing the waste generated by the intaglio printing device, and improving the printing efficiency and effect of the intaglio printing device. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structure schematic diagram of a solvent-free intaglio printing device with a cleaning mechanism.

[0019] Figure 2 It is a three-dimensional structure schematic diagram of another angle of a solvent-free intaglio printing device with a cleaning mechanism.

[0020] Figure 3 It is a schematic diagram of the internal structure of the frame in a solvent-free intaglio printing device with a cleaning mechanism.

[0021] Figure 4 It is a three-dimensional structure schematic diagram of the scraping component in a solvent-free intaglio printing device with a cleaning mechanism.

[0022] Figure 5 In a solvent-free intaglio printing device with a cleaning mechanism Figure 4 The enlarged structure schematic diagram at position A.

[0023] Figure 6 It is a partial three-dimensional structure schematic diagram of the cleaning component in a solvent-free intaglio printing device with a cleaning mechanism.

[0024] Figure 7 It is an exploded structure schematic diagram of the dust cleaning component in a solvent-free intaglio printing device with a cleaning mechanism.

[0025] Figure 8 It is an exploded structure schematic diagram of the ink cartridge in a solvent-free intaglio printing device with a cleaning mechanism.

[0026] Figure 9 In a solvent-free intaglio printing device with a cleaning mechanism Figure 2 The enlarged structure schematic diagram at position B.

[0027] Legend: 1. Frame; 2. Ink cartridge; 3. Ink dipping roller; 4. Printing roller; 5. Scraping component; 51. Fixed plate; 52. Cylinder; 53. Scraper; 6. Ash cleaning component; 61. Air outlet pipe; 62. Connecting rod; 63. Air inlet pipe; 64. Driven sprocket; 65. Cam; 66. Air box; 67. Connecting spring; 68. Piston plate; 69. Thrust rod; 610. Pulley; 611. Connecting pipe; 7. Scrap cleaning component; 71. Reciprocating lead screw; 72. Lead screw sleeve; 73. Fixed rod; 74. Scrap cleaning plate; 75. Limiting sleeve; 76. Limiting rod; 77. Support rod; 78. Positioning plate; 79. Support spring; 710. Movable plate; 711. Slide block; 712. Top block; 8. Driving sprocket; 9. Ink dipping component; 91. Threaded rod; 92. Worm gear; 93. Moving rod; 94. Stroke block; 95. Stroke groove; 96. Fixed spring; 97. Lifting plate; 98. Inclined plate; 99. Rotating rod; 910. Mounting sleeve; 911. Worm; 912. Driven bevel gear; 10. Ink collecting box; 11. Driving bevel gear. Detailed implementation manner

[0028] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-9 , the present invention provides a technical solution: a solvent-free intaglio printing device with a cleaning mechanism, including a frame 1, an ink cartridge 2 is fixedly installed on the inner bottom wall of the frame 1, an ink dipping roller 3 and a printing roller 4 are rotatably installed on the inner side wall of the frame 1, a part of the ink dipping roller 3 extends into the ink cartridge 2, the outer surface of the ink dipping roller 3 is in contact with the outer surface of the printing roller 4, a scrap cleaning component 7 and a scraping component 5 are arranged on the inner side wall of the frame 1, and an ash cleaning component 6 is arranged on the side wall of the frame 1; The cleaning component 7 includes a reciprocating lead screw 71. A driving motor is fixedly installed on the other side wall of the frame 1 through a mounting box. One end of the reciprocating lead screw 71 is fixedly connected to the output end of the driving motor, and the other end of the reciprocating lead screw 71 extends outside the side wall of the frame 1. A lead screw sleeve 72 is threadedly installed on the outer surface of the reciprocating lead screw 71. A fixed rod 73 is fixedly installed on the lower surface of the lead screw sleeve 72. A cleaning plate 74 is fixedly installed at one end of the fixed rod 73. A limit sleeve 75 is fixedly installed on the upper surface of the lead screw sleeve 72. A limit rod 76 is fixedly installed on the inner wall of the limit sleeve 75. Both ends of the limit rod 76 are fixedly connected to the inner side walls of both sides of the frame 1. A support rod 77 is fixedly installed on the upper surface of the limit sleeve 75. Positioning plates 78 are fixedly installed on the inner side walls of both sides of the frame 1. A support spring 79 is fixedly installed on the lower surface of the positioning plate 78. One end of the support spring 79 is fixedly installed with a movable plate 710. A slider 711 is fixedly installed on the side wall of the movable plate 710. Chute grooves are provided on the inner side walls of both sides of the frame 1. The outer surface of the slider 711 is slidably connected to the inner wall of the chute groove. A top block 712 is fixedly installed on the lower surface of the movable plate 710. One end of the support rod 77 is in contact with the lower surface of the movable plate 710.

[0030] The specific embodiment is as follows: The driving motor drives the reciprocating lead screw 71 to rotate. Under the action of the thread, the lead screw sleeve 72 moves back and forth on the outer surface of the reciprocating lead screw 71 under the limitation of the limit sleeve 75 and the limit rod 76. When the lead screw sleeve 72 moves, it drives the cleaning plate 74 to move on the upper surface of the scraping plate 53 through the fixed rod 73, so as to scrape the ink on the scraping plate 53 to both sides of the scraping plate 53, causing the ink to fall into the ink collecting box 10. When the lead screw sleeve 72 moves, it also drives the support rod 77 to move below the movable plate 710 through the limit sleeve 75. After the support rod 77 comes into contact with the top block 712, under the action of the support spring 79, the movable plate 710 vibrates up and down in the chute groove through the slider 711. At this time, the movable plate 710 will knock on the support rod 77, and the knocked support rod 77 will transmit the vibration force to the cleaning plate 74, so as to shake the ink adhered to the cleaning plate 74 into the ink collecting box 10.

[0031] The scraping component 5 includes a fixing plate 51. Both ends of the fixing plate 51 are fixedly connected to the inner side walls of both sides of the frame 1. A cylinder 52 is fixedly installed on the side wall of the fixing plate 51. One end of the cylinder 52 is fixedly installed with a scraping plate 53. The side wall of the scraping plate 53 is in contact with the outer surface of the printing roller 4. The upper surface of the scraping plate 53 is in contact with the lower surface of the cleaning plate 74. Ink collecting boxes 10 are fixedly installed on the inner side walls of both sides of the frame 1. The ink collecting boxes 10 are adapted to the cleaning plate 74.

[0032] The specific embodiment is as follows: When the printing press is working, the rotating directions of the ink-dipping roller 3 and the printing roller 4 are opposite. When the ink-dipping roller 3 rotates, it will adhere the ink in the ink cartridge 2 to its outer surface. Then, after contacting the printing roller 4, the ink will adhere to the outer surface of the printing roller 4. The printing roller 4 performs printing on the paper. During the printing process, the air cylinder 52 drives the squeegee 53 to move, so that the side wall of the squeegee 53 fits with the outer surface of the printing roller 4. Then, when the printing roller 4 rotates, the squeegee 53 scrapes off the residual ink on the printing roller 4 after printing.

[0033] The dust cleaning assembly 6 includes an air outlet pipe 61. An air outlet is provided on the outer surface of the air outlet pipe 61. One end of the air outlet pipe 61 is fixedly installed with a connecting rod 62. One end of the connecting rod 62 is rotatably connected to the inner side wall of the frame 1. An air outlet is provided on the outer surface of the air outlet pipe 61. The other end of the air outlet pipe 61 is communicated and installed with an air inlet pipe 63. One end of the air inlet pipe 63 extends to the outside of the frame 1. A driven sprocket 64 is fixedly installed on the outer surface of the air inlet pipe 63. A driving sprocket 8 is fixedly installed on the outer surface of the reciprocating lead screw 71. The driving sprocket 8 and the driven sprocket 64 are connected by a chain drive. A wind box 66 is fixedly installed on the side wall of the frame 1. A connecting spring 67 is fixedly installed on the inner wall of the top surface of the wind box 66. One end of the connecting spring 67 is fixedly installed with a piston plate 68. The outer surface of the piston plate 68 is slidably connected to the inner wall of the wind box 66. A push rod 69 is fixedly installed on the lower surface of the piston plate 68. One end of the push rod 69 extends to the outside of the lower surface of the wind box 66. A groove is provided at one end of the push rod 69. A pulley 610 is rotatably installed on the inner wall of the groove through a rotating shaft. A connecting pipe 611 is communicated and installed on the side wall of the wind box 66. An air suction pipe is communicated and installed on the other side wall of the wind box 66. An air path one-way valve is fixedly installed on the inner wall of the air suction pipe. One end of the connecting pipe 611 is rotatably connected to one end of the air inlet pipe 63. A cam 65 is fixedly installed on the outer surface of the air inlet pipe 63. A limiting groove is provided on the outer surface of the cam 65. The outer surface of the pulley 610 is slidably connected to the inner wall of the limiting groove.

[0034] The specific embodiment is as follows: When the reciprocating lead screw 71 rotates, it will drive the driving sprocket 8 and the driving bevel gear 11 to rotate. Under the action of the chain, the driven sprocket 64 will drive the air inlet pipe 63 to rotate synchronously. The air inlet pipe 63 drives the air outlet pipe 61 to rotate under the limit of the connecting rod 62. When the air inlet pipe 63 rotates, it will also drive the cam 65 to rotate synchronously. Under the action of the pulley 610, the push rod 69 drives the piston plate 68 to move up and down in the wind box 66 under the action of the connecting spring 67. When the piston plate 68 moves up, it squeezes the gas in the wind box 66. At this time, the gas flows into the air outlet pipe 61 through the connecting pipe 611 and the air inlet pipe 63, and then blows towards the printing surface of the paper through the air outlet. When the piston plate 68 moves down, it sucks air into the wind box 66 through the air suction pipe.

[0035] The ink dipping assembly 9 includes a threaded rod 91 and a rotating rod 99. One end of the threaded rod 91 is rotatably connected to the inner side wall of the ink cartridge 2, and the other end of the threaded rod 91 extends to the outside of the ink cartridge 2. A worm gear 92 is fixedly installed on the outer surface of the threaded rod 91. A moving rod 93 is threadedly installed on the outer surface of the threaded rod 91. Stroke blocks 94 are fixedly installed at both ends of the moving rod 93. Stroke grooves 95 are provided on the inner side walls of both sides of the ink cartridge 2. The outer surface of the stroke block 94 is slidably connected to the inner wall of the stroke groove 95. A fixed spring 96 is fixedly installed on the bottom inner wall of the ink cartridge 2. One end of the fixed spring 96 is fixedly installed with a lifting plate 97. The outer surface of the lifting plate 97 is closely attached to the inner wall of the ink cartridge 2. An inclined plate 98 is fixedly installed on the lower surface of the lifting plate 97. The lower surface of the inclined plate 98 is attached to the upper surface of the moving rod 93. An installation sleeve 910 is rotatably installed on the outer surface of the rotating rod 99. The side wall of the installation sleeve 910 is fixedly connected to the side wall of the frame 1. A worm 911 is fixedly installed at one end of the rotating rod 99. The worm 911 is meshed with the worm gear 92. A driven bevel gear 912 is fixedly installed at the other end of the rotating rod 99. A driving bevel gear 11 is fixedly installed at the other end of the reciprocating lead screw 71. The driving bevel gear 11 is meshed with the driven bevel gear 912.

[0036] The specific embodiment is as follows: When the driving bevel gear 11 rotates, the driven bevel gear 912 drives the rotating rod 99 to rotate inside the inner wall of the installation sleeve 910. At this time, the rotating rod 99 will drive the worm 911 to rotate synchronously. At this time, under the action of the worm gear 92, the threaded rod 91 rotates inside the ink cartridge 2. Under the action of the thread, the moving rod 93 moves through the stroke block 94 inside the stroke groove 95. At this time, the moving rod 93 moves toward one side of the ink cartridge 2. As the moving rod 93 moves, under the action of the inclined plate 98, the lifting plate 97 will gradually move upward toward the ink cartridge 2, thereby driving the ink to gradually move upward. When the lifting plate 97 reaches the top, it indicates that the ink volume in the ink cartridge 2 is small. At this time, the threaded rod 91 is rotated in the reverse direction, so that the lifting plate 97 moves downward, and then ink is injected into the ink cartridge 2 through the ink filling pipe.

[0037] Working principle: When the printing press is working, the rotating directions of the ink-dipping roller 3 and the printing roller 4 are opposite. When the ink-dipping roller 3 rotates, it will adhere the ink in the ink cartridge 2 to its outer surface. Then, after contacting the printing roller 4, the ink will adhere to the outer surface of the printing roller 4. The printing roller 4 performs printing on the paper. During the printing process, the air cylinder 52 drives the squeegee 53 to move, so that the side wall of the squeegee 53 fits the outer surface of the printing roller 4. Then, when the printing roller 4 rotates, the squeegee 53 scrapes off the residual ink on the printing roller 4 after printing. The driving motor drives the reciprocating lead screw 71 to rotate. Under the action of the thread, the lead screw sleeve 72 moves back and forth on the outer surface of the reciprocating lead screw 71 under the limitation of the limit sleeve 75 and the limit rod 76. When the lead screw sleeve 72 moves, it drives the cleaning plate 74 to move on the upper surface of the squeegee 53 through the fixed rod 73, so as to scrape the ink on the squeegee 53 to both sides of the squeegee 53, and make the ink fall into the ink collection box 10. When the lead screw sleeve 72 moves, it will also drive the support rod 77 to move below the movable plate 710 through the limit sleeve 75. After the support rod 77 contacts the top block 712, under the action of the support spring 79, the movable plate 710 vibrates up and down through the slider 711 in the chute. At this time, the movable plate 710 will knock on the support rod 77, and the knocked support rod 77 will transmit the vibration force to the cleaning plate 74, so as to shake the ink adhered to the cleaning plate 74 into the ink collection box 10. When the reciprocating lead screw 71 rotates, it will drive the driving sprocket 8 and the driving bevel gear 11 to rotate. Under the action of the chain, the driven sprocket 64 will drive the air inlet pipe 63 to rotate synchronously. The air inlet pipe 63 drives the air outlet pipe 61 to rotate under the limitation of the connecting rod 62. When the air inlet pipe 63 rotates, it will also drive the cam 65 to rotate synchronously. Under the action of the pulley 610, the ejector rod 69 drives the piston plate 68 to move up and down in the air box 66 under the action of the connecting spring 67. When the piston plate 68 moves up, it squeezes the gas in the air box 66. At this time, the gas flows into the air outlet pipe 61 through the connecting pipe 611 and the air inlet pipe 63, and then blows to the printing surface of the paper through the air outlet. When the piston plate 68 moves down, it sucks air into the air box 66 through the suction pipe. When the driving bevel gear 11 rotates, the driven bevel gear 912 drives the rotating rod 99 to rotate on the inner wall of the mounting sleeve 910. At this time, the rotating rod 99 will drive the worm 911 to rotate synchronously. At this time, under the action of the worm gear 92, the threaded rod 91 rotates in the ink cartridge 2. Under the action of the thread, the moving rod 93 moves in the travel groove 95 through the travel block 94. At this time, the moving rod 93 moves towards one side of the ink cartridge 2. As the moving rod 93 moves, under the action of the inclined plate 98, the lifting plate 97 will gradually move upward above the ink cartridge 2, so as to drive the ink to move upward gradually. When the lifting plate 97 reaches the top, it means that the ink volume in the ink cartridge 2 is less. At this time, the threaded rod 91 is rotated in the reverse direction, so that the lifting plate 97 moves down, and then ink is added to the ink cartridge 2 through the ink filling pipe.

[0038] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A solvent-free gravure printing device with a cleaning mechanism, comprising a frame (1), characterized in that: An ink cartridge (2) is fixedly mounted on the inner wall of the bottom surface of the frame (1); an ink immersion roller (3) and a printing roller (4) are rotatably mounted on the inner wall of the frame (1); a portion of the ink immersion roller (3) extends into the interior of the ink cartridge (2); an outer surface of the ink immersion roller (3) is in contact with an outer surface of the printing roller (4); a cleaning component (7) and a scraping component (5) are arranged on the inner wall of the frame (1); a dust cleaning component (6) is arranged on the side wall of the frame (1); and an ink immersion component (9) is arranged on the inner wall of the ink cartridge (2); The material cleaning assembly (7) comprises a reciprocating screw (71), a driving motor is fixedly mounted on the other side wall of the frame (1) via a mounting box, one end of the reciprocating screw (71) is fixedly connected to the output end of the driving motor, the other end of the reciprocating screw (71) extends outside the side wall of the frame (1), a screw sleeve (72) is threadedly mounted on the outer surface of the reciprocating screw (71), a fixing rod (73) is fixedly mounted on the lower surface of the screw sleeve (72), and a material cleaning plate (74) is fixedly mounted on one end of the fixing rod (73).

2. The solvent-free gravure printing device with a cleaning mechanism according to claim 1, characterized in that: A limit sleeve (75) is fixedly mounted on the upper surface of the lead screw sleeve (72), a limit rod (76) is fixedly mounted on the inner wall of the limit sleeve (75), two ends of the limit rod (76) are respectively fixedly connected to the inner walls on both sides of the frame (1), a support rod (77) is fixedly mounted on the upper surface of the limit sleeve (75), a positioning plate (78) is fixedly mounted on the inner walls on both sides of the frame (1), a support spring (79) is fixedly mounted on the lower surface of the positioning plate (78), and a movable plate (710) is fixedly mounted on one end of the support spring (79).

3. The solvent-free gravure printing device with a cleaning mechanism according to claim 2, characterized in that: A slider (711) is fixedly mounted on the side wall of the movable plate (710), and a slide groove is provided on the inner walls of both sides of the frame (1). The outer surface of the slider (711) is slidably connected to the inner wall of the slide groove. A top block (712) is fixedly mounted on the lower surface of the movable plate (710), and one end of the support rod (77) is in contact with the lower surface of the movable plate (710).

4. The solvent-free gravure printing device with a cleaning mechanism according to claim 3, characterized in that: The scraper assembly (5) comprises a fixed plate (51), the two ends of the fixed plate (51) are respectively fixedly connected to the inner walls of the frame (1), a cylinder (52) is fixedly mounted on the side wall of the fixed plate (51), a scraper (53) is fixedly mounted on one end of the cylinder (52), the side wall of the scraper (53) is in contact with the outer surface of the printing roller (4), the upper surface of the scraper (53) is in contact with the lower surface of the cleaning plate (74), and an ink collecting box (10) is fixedly mounted on the inner walls of the frame (1), and the ink collecting box (10) and the cleaning plate (74) are adapted to each other.

5. The solvent-free gravure printing device with a cleaning mechanism according to claim 4, characterized in that: The ink immersion component (9) comprises a threaded rod (91) and a rotating rod (99); one end of the threaded rod (91) is rotatably connected to the inner wall of the ink cartridge (2); the other end of the threaded rod (91) extends to the outside of the ink cartridge (2); a worm gear (92) is fixedly mounted on the outer surface of the threaded rod (91); a moving rod (93) is threadedly mounted on the outer surface of the threaded rod (91); travel blocks (94) are fixedly mounted on both ends of the moving rod (93); travel grooves (95) are provided on the inner walls of both sides of the ink cartridge (2); and the outer surface of the travel block (94) is slidably connected to the inner wall of the travel groove (95).

6. The solvent-free gravure printing device with a cleaning mechanism according to claim 5, characterized in that: A fixing spring (96) is fixedly mounted on the inner wall of the bottom surface of the ink cartridge (2); a lifting plate (97) is fixedly mounted on one end of the fixing spring (96); the outer surface of the lifting plate (97) is tightly fitted with the inner wall of the ink cartridge (2); an inclined plate (98) is fixedly mounted on the lower surface of the lifting plate (97); the lower surface of the inclined plate (98) is fitted with the upper surface of the moving rod (93).

7. The solvent-free gravure printing device with a cleaning mechanism according to claim 6, characterized in that: A mounting sleeve (910) is rotatably mounted on the outer surface of the rotating rod (99); a side wall of the mounting sleeve (910) is fixedly connected to a side wall of the frame (1); a worm (911) is fixedly mounted on one end of the rotating rod (99); the worm (911) is meshingly connected to the worm wheel (92); a driven bevel gear (912) is fixedly mounted on the other end of the rotating rod (99); a driving bevel gear (11) is fixedly mounted on the other end of the reciprocating screw (71); the driving bevel gear (11) is meshingly connected to the driven bevel gear (912).

8. The solvent-free gravure printing device with a cleaning mechanism according to claim 7, characterized in that: The dust cleaning component (6) comprises an air outlet pipe (61), an outer surface of the air outlet pipe (61) is provided with an air outlet, one end of the air outlet pipe (61) is fixedly mounted with a connecting rod (62), one end of the connecting rod (62) is rotatably connected to the inner wall of the frame (1), an outer surface of the air outlet pipe (61) is provided with an air outlet, the other end of the air outlet pipe (61) is connected with an air inlet pipe (63), one end of the air inlet pipe (63) extends to the outside of the frame (1), a driven sprocket (64) is fixedly mounted on the outer surface of the air inlet pipe (63), a driving sprocket (8) is fixedly mounted on the outer surface of the reciprocating screw (71), and the driving sprocket (8) and the driven sprocket (64) are connected via a sprocket chain transmission.

9. The solvent-free gravure printing device with a cleaning mechanism according to claim 8, characterized in that: A bellows (66) is fixedly mounted on the side wall of the frame (1); a connecting spring (67) is fixedly mounted on the inner wall of the top surface of the bellows (66); a piston plate (68) is fixedly mounted on one end of the connecting spring (67); the outer surface of the piston plate (68) is slidably connected to the inner wall of the bellows (66); a push rod (69) is fixedly mounted on the lower surface of the piston plate (68); one end of the push rod (69) extends to the outside of the lower surface of the bellows (66); one end of the push rod (69) is provided with a groove; a pulley (610) is rotatably mounted on the inner wall of the groove via a rotating shaft.

10. The solvent-free gravure printing device with a cleaning mechanism according to claim 9, characterized in that: A connecting pipe (611) is installed in communication with the side wall of the bellows (66); an air suction pipe is installed in communication with the other side wall of the bellows (66); an air path one-way valve is fixedly installed on the inner wall of the air suction pipe; one end of the connecting pipe (611) is rotatably connected to one end of the air inlet pipe (63); a cam (65) is fixedly installed on the outer surface of the air inlet pipe (63); a limiting groove is provided on the outer surface of the cam (65); and the outer surface of the pulley (610) is slidably connected to the inner wall of the limiting groove.

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