Printing dust treatment device
This printing dust treatment device, which combines electrostatic adsorption and discharge components with filter bag cleaning components, solves the problem of dust affecting the transport of printed materials during the printing process, achieving efficient dust removal and stable operation of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-23
- Publication Date
- 2026-04-17
AI Technical Summary
During the printing process, dust on the surface of the substrate causes uneven ink transfer, and existing devices can easily affect the transport of the substrate when suctioning dust.
The system employs an adsorption roller with an charged layer, combined with charging and discharging components. It uses electrostatic adsorption to attract dust and removes it during discharge. Combined with filter bags and cleaning components, the dust is treated, reducing obstruction to the transport of the printing substrate.
It effectively adsorbs and removes dust, reducing the impact on substrate transport, and maintains efficient operation of the device through filter bags and cleaning components.
Smart Images
Figure CN121871256A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of printing dust treatment, and more particularly to a printing dust treatment device. Background Technology
[0002] Printing is a reproduction technique that transfers ink from a printing plate to a substrate. During the printing process, dust may be present on the surface of the substrate, causing ink to fall onto the dust during the transfer. When the dust comes off, the ink will also come off, thus forming white spots on the surface of the substrate. Therefore, it is necessary to treat the dust on the surface of the substrate before transferring the ink to ensure the quality of the print.
[0003] A dust removal device for printing substrates on a printing press is disclosed in the related technology. It includes a suction chamber with two brush rollers arranged on opposite sides of the chamber. A flared suction port is installed at the bottom of the suction chamber, tangent to the sides of the two brush rollers. A conveying device for horizontally conveying the printing substrate is located at the bottom of the suction chamber. An exhaust channel is provided inside the suction chamber. When the printing substrate is conveyed to the position of the two brush rollers by the conveying device, the brush rollers agitate the dust on the surface of the substrate, causing the dust to be cleaned through the exhaust channel inside the suction chamber.
[0004] However, in the above structure, the substrate is prone to sticking to the brush roller during the negative pressure process, which affects the transmission of the substrate. Summary of the Invention
[0005] In order to reduce the obstruction of the transfer of the printing substrate caused by the process of suctioning dust from the printing substrate, this application provides a printing dust treatment device.
[0006] This application provides a printing dust treatment device, which adopts the following technical solution: A printing dust treatment device includes a suction chamber, an adsorption roller, and a processing component for filtering dust. The lower part of the adsorption roller is used to convey the printing substrate, and the lower part of the adsorption roller is in contact with the surface of the printing substrate. The adsorption roller includes a roller frame, conductive plates, and a charged layer. The conductive plates are circumferentially spaced on the roller frame, and the charged layer is arranged on the surface of the conductive plates located outside the roller frame. The roller frame is used to separate adjacent conductive plates and charged layers. The adsorption roller is internally provided with a charging component for charging the conductive plates at the lower part of the adsorption roller and a discharging component for discharging the conductive plates at the upper part of the adsorption roller. The air inlet of the suction chamber faces the upper part of the adsorption roller. The suction chamber is connected to the processing component, and the processing component is connected to an exhaust fan.
[0007] By adopting the above technical solution, during use, the suction chamber is connected to the processing component and the exhaust fan. The exhaust fan can create a negative pressure at the position of the suction chamber close to the adsorption roller, and the suction chamber is located on the upper part of the adsorption roller. The adsorption roller includes a roller frame, conductive plates and a charged layer. The roller frame is used to support multiple conductive plates. The charged layer is set on the conductive plates for charging, so that the charged layer has static electricity. When the roller frame rotates to the position of contacting the substrate, the conductive plates are charged by the charging component, so that the dust on the surface of the substrate is adsorbed onto the charged layer. Then, when it continues to rotate to the position of the discharge component, the conductive plates are discharged by the discharge component, so that the dust falls off the charged layer and is sucked away by the suction chamber. This can reduce the obstruction of substrate transfer caused by directly sucking dust from the substrate.
[0008] Preferably, the adsorption roller is provided with an internal mounting frame, and the mounting frame is provided with two support frames. The discharge assembly includes a discharge roller, and the charging assembly includes a charging roller. The discharge roller and the charging roller are respectively rotatably connected to one of the support frames. The support frame is slidably connected to the mounting frame along the radial direction of the adsorption roller. A spring is provided between the support frame and the mounting frame to drive the support frame to move toward the inner wall of the adsorption roller.
[0009] By adopting the above technical solution, the discharge component includes a discharge roller, the charging component includes a charging roller, both the charging roller and the discharge roller are mounted on a support frame, and the support frame is slidably connected to the mounting frame, so that the spring between the support frame and the mounting frame drives the support frame to approach the inner wall of the adsorption roller, thereby enabling the charging roller and the discharge roller to better contact the conductive plate and ensure the charging and discharging of the charged layer.
[0010] Preferably, a fixed shaft is fixedly provided on the mounting frame, and the two ends of the adsorption roller are rotatably connected to the fixed shaft through the wheel rim. A drive assembly is provided on the mounting frame, and the drive assembly includes a drive motor, a drive gear, and a driven gear. The drive motor is fixed on the mounting frame, the drive gear is coaxially fixed on the output shaft of the drive motor, and the driven gear is fixed on the wheel rim and coaxially provided with the adsorption roller. The drive gear meshes with the driven gear.
[0011] By adopting the above technical solution, the drive motor is fixed on the mounting frame. The drive motor drives the active gear to rotate, and the active gear drives the driven gear to rotate, thereby enabling the adsorption roller to rotate under the action of the drive motor. This ensures that the adsorption roller is used to effectively adsorb dust on the surface of the substrate.
[0012] Preferably, the processing component includes a housing and a filter bag disposed inside the housing. The filter bag is disposed vertically downwards. The lower part of the housing is configured as a pyramid. An air inlet pipe and an air outlet pipe are disposed on the housing. The air inlet pipe is located at the lower part of the housing, and the air outlet pipe is connected to the upper part of the housing. The airflow from the air inlet pipe and the air outlet pipe enters through the opening of the filter bag and is then filtered by the filter bag. The air inlet pipe is connected to the suction chamber, and the air outlet pipe is connected to the exhaust fan.
[0013] By adopting the above technical solution, the lower part of the shell is set in a pyramid shape, and the filter bag inside the shell is vertically downward. When the airflow passes through the filter bag, the dust is inside the filter bag, and the dust falls to the lower part of the shell under the action of gravity, which makes it convenient to clean the collected dust from the lower part of the shell.
[0014] Preferably, the housing is provided with two fixing plates, which are spaced apart vertically. Multiple cylindrical meshes are provided between the two fixing plates. A through hole is provided on the lower fixing plate. The filter bag is placed into the cylindrical mesh through the through hole, and the bag opening of the filter bag is fixed to the lower surface of the lower fixing plate.
[0015] By adopting the above technical solution, the filter cylinder is placed between two fixed plates, which fix the position of the filter cylinder and place the filter bag inside the filter cylinder. Thus, the filter bag maintains a fixed interval under the restriction of the filter cylinder, so that the filter bag can stably filter dust.
[0016] Preferably, positioning rings are fixedly provided on the opposing surfaces of the two fixing plates, the two ends of the cylindrical mesh are located inside the positioning rings, and a fixing ring is provided on the lower surface of the lower fixing plate. The fixing ring is detachably connected to the fixing plate by bolts, and the bag opening of the filter bag is sandwiched between the fixing ring and the lower surface of the lower fixing plate.
[0017] By adopting the above technical solution, a positioning ring is set on the fixing plate so that both ends of the filter screen are inside the positioning ring. When the filter screen is stuck inside the positioning ring, the position of the filter screen is fixed, which makes it more convenient to install and disassemble the filter screen. The filter bag can be easily replaced by removing the fixing ring of the bag mouth piece of the filter bag.
[0018] Preferably, a cleaning assembly is provided on the lower surface of the fixed plate below. The cleaning assembly includes a first screw, a second screw, and a nozzle. The first screw is rotatably connected to the fixed plate below. A sliding frame is threaded onto the first screw, and the sliding frame is slidably disposed on the fixed plate below along the length direction of the first screw. The second screw is rotatably connected to the sliding frame. The first screw and the second screw are arranged perpendicularly. A slider is threaded onto the second screw, and the slider is slidably connected to the sliding frame along the length direction of the second screw. The nozzle is fixed on the slider and faces the filter bag.
[0019] By adopting the above technical solution, the first screw and the second screw are set perpendicularly, so that the first screw and the second screw can drive the slider to move in two mutually perpendicular directions. The nozzle fixed on the slider can move the nozzle to the position corresponding to any filter bag, so that air can be injected into the filter bag through the nozzle, and then the dust adhering to the inner surface of the filter bag can be cleaned by the gas, so as to restore the filtering function of the filter bag.
[0020] Preferably, a first motor is provided at one end of the first screw, the first motor is fixed on the housing, and the output shaft of the first motor is coaxially fixed with the first screw. A second motor is fixed on the sliding frame, and transmission gears are coaxially fixed on the output shaft of the second motor and the second screw, and the two transmission gears mesh.
[0021] By adopting the above technical solution, the first motor is fixed on the housing and drives the first screw to rotate. The second motor is fixed on the sliding frame and moves with the sliding frame. The second motor then rotates the second screw through two transmission gears, so that the nozzle can automatically move to the position corresponding to the filter bag under the action of the first motor and the second motor.
[0022] Preferably, the roller frame has multiple mounting slots evenly distributed around its circumference, the conductive plate is fixed in the mounting slots, the roller frame is made of insulating material, and the surface of the conductive plate facing the inside of the roller frame protrudes into the inner wall of the roller frame.
[0023] By adopting the above technical solution, an installation groove is opened on the roller frame, the conductive plate is fixed in the installation groove, the roller frame is used to separate adjacent guide plates, and the conductive plate is conveniently fixed on the roller frame, so that the conductive plate can be charged or discharged in sequence.
[0024] Preferably, the mounting bracket has a guide hole, which is vertically positioned. A guide rod is inserted into the guide hole, and a spring is sleeved on the guide rod. One end of the guide rod is fixed to the support frame, and one end of the spring abuts against the mounting bracket and the other end abuts against the support frame.
[0025] By adopting the above technical solution, one end of the guide rod is inserted into the guide hole, the guide rod is fixed on the support frame, and the spring is sleeved on the guide rod, so that the support frame can be stably connected to the mounting frame.
[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. When the rollers rotate to the position where they contact the substrate, the conductive plate is charged by the charging assembly, which causes the dust on the surface of the substrate to be adsorbed onto the charged layer. Then, when the rollers continue to rotate to the position of the discharge assembly, the conductive plate discharges through the discharge assembly, causing the dust to fall off the charged layer and be drawn away through the suction chamber. This reduces the obstruction of the substrate's transport caused by directly sucking up the dust from the substrate. 2. The spring between the support frame and the mounting frame drives the support frame to approach the inner wall of the adsorption roller, thereby enabling the charging roller and the discharging roller to make better contact with the conductive plate, ensuring the charging and discharging of the charged layer; 3. The first screw and the second screw can drive the slider to move in two mutually perpendicular directions. The nozzle fixed on the slider can move the nozzle to the position corresponding to any filter bag. The gas will clean the dust adhering to the inner surface of the filter bag to restore the filtering function of the filter bag. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the adsorption roller in an embodiment of this application; Figure 3 This is a schematic diagram of the installation structure of the driver component in an embodiment of this application; Figure 4 This is a schematic diagram of the processing component structure in the embodiments of this application; Figure 5 This is a schematic diagram showing the location of the cleaning components in an embodiment of this application; Figure 6 yes Figure 5 A magnified view of part A in the middle.
[0028] Explanation of reference numerals in the attached drawings: 1. Adsorption roller; 11. Roller frame; 12. Conductive plate; 13. Charged layer; 14. Mounting groove; 2. Suction chamber; 3. Processing assembly; 31. Housing; 311. Inlet pipe; 312. Outlet pipe; 313. Flexible hose; 32. Filter bag; 33. Fixing plate; 331. Through hole; 34. Filter screen; 35. Positioning ring; 36. Fixing ring; 4. Printing substrate; 5. Drive roller; 6. Exhaust fan; 7. Mounting bracket; 71. Fixing shaft; 72. 73. Guide hole; 74. Guide rod; 75. Support frame; 76. Spring; 8. Wheel rim; 97. Drive assembly; 108. Drive motor; 11. Drive gear; 12. Driven gear; 13. Driven gear; 14. Charging roller; 15. Discharging roller; 16. Cleaning assembly; 17. First screw; 18. Second screw; 19. Nozzle; 100. Sliding frame; 101. Sliding block; 102. First motor; 103. Second motor; 104. Transmission gear; 105. Sliding rod. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0030] This application discloses a printing dust treatment device, with reference to... Figure 1 The system includes an adsorption roller 1, a suction chamber 2, and a processing component 3. The adsorption roller 1 has a substrate 4 placed below it, and it rolls as the substrate 4 is conveyed. A drive roller 5 is positioned below the substrate 4 to convey it. The axis of the adsorption roller 1 is perpendicular to the conveying direction of the substrate 4. The lower part of the adsorption roller 1 can contact the substrate 4. When the outer wall of the adsorption roller 1 is charged, it adsorbs dust from the surface of the substrate 4 using electrostatic principles. Because the charge on the adsorption roller 1 has a better adsorption effect on smaller dust particles, but a smaller adsorption effect on the substrate 4, the impact on the conveying of the substrate 4 can be reduced during dust removal. The suction chamber 2 is located at the upper part of the adsorption roller 1. When the adsorption roller 1 rotates with dust to the upper part of the adsorption roller 1 and approaches the air inlet of the suction chamber 2, the airflow formed by the suction chamber 2 adsorbs the dust on the outer wall of the adsorption roller 1. The processing component 3 is connected to the suction chamber 2. The processing component 3 is used to collect the dust entering the suction chamber 2. The processing component 3 is connected to the exhaust fan 6. The exhaust fan 6 is used to form airflow and create negative pressure at the position of the suction chamber 2 near the adsorption roller 1.
[0031] refer to Figure 2 and Figure 3 The adsorption roller 1 has a hollow internal structure. A mounting frame 7 is installed inside the adsorption roller 1, and a fixed shaft 71 is fixedly mounted on the mounting frame 7. The fixed shaft 71 is coaxial with the adsorption roller 1. Flanges 76 are provided at both ends of the adsorption roller 1, and the flanges 76 are rotatably connected to the fixed roller and fixed to the ends of the adsorption roller 1. The adsorption roller 1 is rotatably connected to the fixed shaft 71 via the flanges 76, and the fixed shaft 71 does not need to rotate. A drive assembly 8 for driving the adsorption roller 1 is provided on the mounting frame 7, causing the adsorption roller 1 to rotate under the action of the drive assembly 8. Simultaneously, a charging roller 91 and a discharging roller 92 are provided on the mounting frame 7, both located inside the adsorption roller 1. The charging roller 91 and the discharging roller 92 have opposite charges. The lower part of the charging roller 91 contacts the lowest part of the inner wall of the adsorption roller 1, allowing the charging roller 91 to charge the lowest part of the adsorption roller 1 and complete the adsorption of dust. The discharge roller 92 is positioned to contact the uppermost part of the inner wall of the adsorption roller 1 and is located opposite to the suction chamber 2. The discharge roller 92 discharges onto the upper part of the adsorption roller 1 near the suction chamber 2, thereby reducing the adsorption effect on dust and making it easier to detach from the adsorption roller 1 when it is sucked by the suction chamber 2.
[0032] refer to Figure 2 and Figure 3 The adsorption roller 1 includes a roller frame 11, a conductive plate 12, and a charged layer 13. The roller frame 11 is a cylindrical structure made of insulating material, and multiple mounting grooves 14 are evenly spaced along the circumference of the roller frame 11 on its side wall. The conductive plate 12 is fixed in the mounting groove 14, and adjacent conductive plates 12 are insulated from each other by the roller frame 11. The charged layer 13 is disposed on the surface of the conductive plate 12 facing the upper side of the roller frame 11. The charged layer 13 on adjacent conductive plates 12 is also insulated from the roller frame 11. The surface of the conductive plate 12 facing the inner side of the roller frame 11 protrudes into the inner wall of the roller frame 11 so that the charging roller 91 or the discharging roller 92 can contact the conductive plate 12, so that the conductive plate 12 is charged under the action of the charging roller 91 and discharged under the action of the discharging roller 92. This ensures that the lower part of the adsorption roller 1 adsorbs dust in a timely manner, and the upper part of the adsorption roller 1 releases dust in a timely manner.
[0033] refer to Figure 2 and Figure 3 The mounting frame 7 has multiple guide holes 72, which are located radially along the adsorption roller 1 and pass through its center. In this embodiment, the guide holes 72 are vertically positioned. A guide rod 73 is inserted into each guide hole 72, with one end of the guide rod 73 slidably connected within the guide hole 72 and the other end fixedly mounted on a support frame 74. One support frame 74 is positioned above and one below the mounting frame 7, respectively, so that the charging roller 91 and the discharging roller 92 are mounted on the two support frames 74. The guide rods 73 on each support frame 74 are separately arranged, and each support frame 74 has at least two guide rods 73, so that the support frame 74 is stably connected to the mounting frame 7. A spring 75 is sleeved on the guide rod 73. One end of the spring 75 abuts against the mounting frame 7, and the other end abuts against the support frame 74. The force of the spring 75 is used to drive the support frame 74 to move closer to the inner wall of the adsorption roller 1, so that the charging roller 91 and the discharging roller 92 can move along the inner wall of the adsorption roller 1 and maintain good conductive contact.
[0034] refer to Figure 3 The drive assembly 8 includes a drive motor 81, a drive gear 82, and a driven gear 83. The drive motor 81 is fixed on the mounting bracket 7. The drive gear 82 is coaxially fixed on the output shaft of the drive motor 81. The driven gear 83 is fixed on the rim 76 and is coaxially arranged with the adsorption roller 1. The drive gear 82 and the driven gear 83 mesh, so that when the drive motor 81 is working, it can drive the driven gear 83 through the drive gear 82, thereby driving the adsorption roller 1. During the rotation of the adsorption roller 1, it can drive multiple conductive plates 12 to rotate and charge and discharge, so as to complete the adsorption and release of dust on the substrate 4.
[0035] refer to Figure 4 The processing component 3 includes a housing 31 and a filter bag 32 disposed inside the housing 31. The lower part of the housing 31 is pyramidal in shape, with the lower end smaller than the upper end, to facilitate the collection of dust falling into the lower part of the housing 31. A valve can be connected to the lower part of the housing 31 to discharge dust from inside the housing 31. An air inlet pipe 311 is provided on the lower side wall of the housing 31, and an air outlet pipe 312 is provided on the upper side wall of the housing 31. A flexible hose 313 is connected to the air inlet pipe 311, and the air outlet pipe 312 is connected to the air inlet of the exhaust fan 6. One end of the suction chamber 2 opens towards the adsorption roller 1, and the other end is connected to the end of the flexible hose 313 away from the housing 31. The airflow generated by the exhaust fan 6 enters the housing 31 from the lower part of the housing 31, is filtered by the filter bag 32, and then enters the exhaust fan 6 through the air outlet pipe 312.
[0036] refer to Figure 4 and Figure 5 Two fixing plates 33 are provided inside the housing 31 for fixing the filter bags 32. The two fixing plates 33 are arranged vertically and spaced apart. Multiple cylindrical meshes 34 are arranged between the two fixing plates 33. The cylindrical meshes 34 can be made of metal mesh cylinders. The cylindrical meshes 34 are used to restrict the position of the filter bags 32. The cylindrical meshes 34 are arranged vertically. Both ends of the cylindrical meshes 34 are limited by positioning rings 35 fixed to the fixing plates 33, so that the cylindrical meshes 34 are spaced apart and evenly arranged on the two fixing plates 33. The lower fixing plate 33 has a through hole 331 at the position opposite to each cylindrical mesh 34. The bag opening of the filter bag 32 is located at the through hole 331. The bottom of the filter bag 32 passes through the cylindrical mesh 34 from bottom to top and reaches the upper fixing plate 33. The connection position of the air inlet pipe 311 to the housing 31 is below the lower fixing plate 33, and the connection position of the air outlet pipe 312 to the housing 31 is between the two fixing plates 33. The edges of the fixing plate 33 are sealed to the inner wall of the housing 31, so that when the airflow enters the housing 31 through the air inlet pipe 311, it then enters through the bag opening of each filter bag 32, and after being filtered by the filter bag 32, it reaches the area between the two fixing plates 33 and flows out through the air outlet pipe 312. A fixing ring 36 is provided on the lower surface of the lower fixing plate 33. The fixing ring 36 is provided with multiple bolts. The fixing ring 36 presses the filter bag 32 against the lower surface of the fixing plate 33, and the bolts pass through the fixing ring 36 and are threadedly connected to the fixing plate 33, so that the fixing ring 36 fixes the bag opening of the filter bag 32.
[0037] refer to Figure 5A cleaning assembly 10 is fixedly installed on the lower surface of the fixing plate 33. Because the filter bags 32 have their openings facing downwards, the dust inside them can collect and fall out. However, some filter bags 32 still experience excessive resistance due to dust accumulation, affecting the negative pressure at the suction chamber 2. The cleaning assembly 10 is used to clean each filter bag 32 to restore its filtering function and reduce airflow resistance.
[0038] refer to Figure 5 The cleaning assembly 10 includes a first screw 101, a second screw 102, and a nozzle 103. The first screw 101 is rotatably connected to a lower fixing plate 33. A slide rod 109 is arranged parallel to the first screw 101. A sliding frame 104 is threadedly connected to the first screw 101. The sliding frame 104 is slidably connected to the slide rod 109. The second screw 102 is rotatably mounted on the sliding frame 104, and the length direction of the second screw 102 is perpendicular to the length direction of the first screw 101. Both the first screw 101 and the second screw 102 are arranged parallel to the fixing plate 33. A slider 105 is threaded onto the second screw 102. The slider 105 is slidably connected to the sliding frame 104, allowing the slider 105 to move along the length of the second screw 102 under the action of the second screw 102. At the same time, the first screw 101 allows the sliding frame 104 to move along the length of the first screw 101, thereby moving the slider 105 to the position corresponding to each filter bag 32. The nozzle 103 is fixed on the slider 105 and faces the filter bag 32. The nozzle 103 is connected to an air compressor. When the filter bag 32 needs to be cleaned, the nozzle 103 is first moved to the opening of the filter bag 32 to be cleaned. Then, pressurized gas is quickly introduced into the filter bag 32, causing the airflow to wash away the dust on the inner wall of the filter bag 32. When the cleaning assembly 10 is working, the exhaust fan 6 can be stopped so that the dust falling from the filter bag 32 falls to the bottom of the housing 31 in time.
[0039] refer to Figure 5 and Figure 6 A first motor 106 is installed at one end of the first screw 101, and a second motor 107 is fixedly installed on the sliding frame 104. The first motor 106 is fixed to the outer wall of the housing 31, and its output shaft is coaxially fixed with the first screw 101, so that the first motor 106 drives the first screw 101 to rotate. Transmission gears 108 are coaxially fixed on both the output shaft of the second motor 107 and the second screw 102. The two transmission gears 108 mesh, and the second motor 107 rotates the second screw 102. Both the first motor 106 and the second motor 107 are stepper motors or servo motors, so that the nozzle 103 can accurately move to the position of each filter bag 32.
[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A printing dust treatment device comprising an air suction chamber (2), characterized in that: It also includes an adsorption roller (1) and a processing assembly (3) for filtering dust. The lower part of the adsorption roller (1) is used to convey the substrate (4). The lower part of the adsorption roller (1) is in contact with the surface of the substrate (4). The adsorption roller (1) includes a roller frame (11), a conductive plate (12), and a charged layer (13). The conductive plates (12) are arranged circumferentially on the roller frame (11). The charged layer (13) is arranged on the surface of the conductive plates (12) located outside the roller frame (11). 1) Used to separate adjacent conductive plates (12) and charged layers (13) with an insulating barrier. The adsorption roller (1) is provided with a charging component for charging the conductive plate (12) at the bottom of the adsorption roller (1) and a discharge component for discharging the conductive plate (12) at the top of the adsorption roller (1). The air inlet of the suction chamber (2) faces the top of the adsorption roller (1). The suction chamber (2) is connected to the processing component (3). The processing component (3) is connected to the exhaust fan (6).
2. The printing dust treatment device according to claim 1, characterized in that: The adsorption roller (1) is provided with an internal mounting frame (7), and two support frames (74) are provided on the mounting frame (7). The discharge assembly includes a discharge roller (92), and the charging assembly includes a charging roller (91). The discharge roller (92) and the charging roller (91) are rotatably connected to a support frame (74). The support frame (74) is slidably connected to the mounting frame (7) along the radial direction of the adsorption roller (1). A spring (75) is provided between the support frame (74) and the mounting frame (7) to drive the support frame (74) to move toward the inner wall of the adsorption roller (1).
3. The printing dust treatment device according to claim 2, characterized in that: A fixed shaft (71) is fixedly installed on the mounting frame (7). The two ends of the adsorption roller (1) are rotatably connected to the fixed shaft (71) through the wheel rim (76). A drive assembly (8) is installed on the mounting frame (7). The drive assembly (8) includes a drive motor (81), a drive gear (82), and a driven gear (83). The drive motor (81) is fixed on the mounting frame (7). The drive gear (82) is coaxially fixed on the output shaft of the drive motor (81). The driven gear (83) is fixed on the wheel rim (76) and coaxially installed with the adsorption roller (1). The drive gear (82) meshes with the driven gear (83).
4. The printing dust treatment device according to claim 1, characterized in that: The processing component (3) includes a housing (31) and a filter bag (32) disposed inside the housing (31). The filter bag (32) is disposed vertically downwards. The lower part of the housing (31) is configured as a pyramid. An air inlet pipe (311) and an air outlet pipe (312) are disposed on the housing (31). The air inlet pipe (311) is located at the lower part of the housing (31), and the air outlet pipe (312) is connected to the upper part of the housing (31). The airflow of the air inlet pipe (311) and the air outlet pipe (312) enters through the bag opening of the filter bag (32) and is then filtered by the filter bag (32). The air inlet pipe (311) is connected to the suction chamber (2), and the air outlet pipe (312) is connected to the exhaust fan (6).
5. The printing dust treatment device according to claim 4, characterized in that: The housing (31) is provided with two fixing plates (33), which are arranged vertically and horizontally. Multiple cylindrical meshes (34) are arranged between the two fixing plates (33). A through hole (331) is opened on the lower fixing plate (33). The filter bag (32) is placed into the cylindrical mesh (34) through the through hole (331). The bag opening of the filter bag (32) is fixed to the lower surface of the lower fixing plate (33).
6. The printing dust treatment device according to claim 5, characterized in that: Positioning rings (35) are fixedly provided on the opposing surfaces of the two fixing plates (33). The two ends of the cylindrical mesh (34) are located inside the positioning rings (35). A fixing ring (36) is provided on the lower surface of the fixing plate (33). The fixing ring (36) is detachably connected to the fixing plate (33) by bolts. The bag opening of the filter bag (32) is sandwiched between the fixing ring (36) and the lower surface of the fixing plate (33).
7. A printing dust treatment device according to claim 5 or 6, characterized in that: A cleaning assembly (10) is provided on the lower surface of the fixed plate (33) below. The cleaning assembly (10) includes a first screw (101), a second screw (102) and a nozzle (103). The first screw (101) is rotatably connected to the fixed plate (33) below. A sliding frame (104) is threadedly connected to the first screw (101), and the sliding frame (104) is slidably arranged on the fixed plate (33) below along the length direction of the first screw (101). The second screw (102) is rotatably connected to the sliding frame (104). The first screw (101) and the second screw (102) are arranged perpendicularly. A slider (105) is threadedly connected to the second screw (102). The slider (105) is slidably connected to the sliding frame (104) along the length direction of the second screw (102). The nozzle (103) is fixed on the slider (105) and faces the filter bag (32).
8. The printing dust treatment device according to claim 7, characterized in that: A first motor (106) is provided at one end of the first screw (101). The first motor (106) is fixed on the housing (31). The output shaft of the first motor (106) is coaxially fixed with the first screw (101). A second motor (107) is fixedly provided on the sliding frame (104). The output shaft of the second motor (107) and the second screw (102) are both coaxially fixed with transmission gears (108). The two transmission gears (108) mesh.
9. The printing dust treatment device according to claim 1, characterized in that: The roller frame (11) has a plurality of mounting grooves (14) evenly distributed around its circumference. The conductive plate (12) is fixed in the mounting groove (14). The roller frame (11) is made of insulating material. The surface of the conductive plate (12) facing the inside of the roller frame (11) protrudes into the inner wall of the roller frame (11).
10. A printing dust treatment device according to claim 2, characterized in that: The mounting bracket (7) has a guide hole (72) which is vertically set. A guide rod (73) is inserted into the guide hole (72). The spring (75) is sleeved on the guide rod (73). One end of the guide rod (73) is fixed on the support frame (74). One end of the spring (75) abuts against the mounting bracket (7) and the other end abuts against the support frame (74).