Non-woven fabric printing die-cutting machine
By introducing a heating humidification box and a drying box into a non-woven printing die-cutting machine, the drying problem after printing and low printing efficiency are solved by using heating humidification and drying technology, and the drying problem of non-woven printing is achieved efficient non-woven printing and drying effect.
Patent Information
- Application Number
- CN202411565632.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-02-11
AI Technical Summary
The existing non-woven printing die-cutting machines cannot effectively dry after printing, resulting in printing damage and lack of heating and humidification treatment before printing, resulting in poor printing efficiency and effect.
A non-woven printing die cutting machine is designed, including a heating humidification box and a drying box. The non-woven fabric is humidified and heated by a heating humidification box. The printed non-woven fabric is quickly dried in the drying box using a heating roller. Dry and clean and heat the heating rollers through cleaning rollers and spray heads.
It effectively avoids damage to non-woven printing, improves the printing efficiency and effect of non-woven fabrics, and at the same time, heats the heating and humidification box through the hot gas conveying component, achieving efficient printing and drying of non-woven fabrics.
Smart Images

Figure CN119408305A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of non-woven fabric production, in particular to a non-woven fabric printing and die-cutting machine. Background Art
[0002] The non-woven printing and die-cutting machine can print non-woven fabrics and then die-cut the printed non-woven fabrics. It has a high degree of integration and greatly improves the production efficiency of non-woven products.
[0003] The existing non-woven printing and die-cutting machines cannot effectively dry the non-woven fabrics after printing, which can easily cause damage to the printed non-woven fabrics during subsequent processing. At the same time, most of the existing non-woven printing and die-cutting machines do not perform heating and humidification treatment before printing, resulting in poor non-woven printing efficiency and effect.
[0004] In view of the above problems, an improved nonwoven printing die-cutting machine is now designed. Summary of the invention
[0005] The object of the present invention is to provide a nonwoven printing die-cutting machine to solve the problems raised in the above background technology.
[0006] To achieve the above object, the present invention provides the following technical solutions:
[0007] A non-woven fabric printing and die-cutting machine comprises a base, wherein a printing machine for printing non-woven fabrics is installed on the upper end of the base, a non-woven fabric conveying device for conveying non-woven fabrics is installed on the upper end of the base on the input end side of the printing machine, a die-cutter for die-cutting the printed non-woven fabrics is installed on the upper end of the base on the output end side of the printing machine, a conveyor belt for conveying the die-cut non-woven fabrics is horizontally arranged at the output end of the die-cutter, a mounting frame of the conveyor belt is installed on the upper end of the base, a waste winding device for winding and collecting waste after die-cutting is arranged above the conveyor belt, and the mounting frame of the waste winding device is installed on the upper end of the base.
[0008] A pretreatment mechanism for humidifying and heating the non-woven fabric is arranged between the non-woven fabric conveying equipment and the printing machine, a drying mechanism for drying the printed non-woven fabric is arranged between the printing machine and the die-cutting machine, and a separation mechanism for separating the die-cut non-woven fabric from the waste is arranged on the conveyor belt between the waste winding equipment and the die-cutting machine.
[0009] As a further solution of the present invention: the pretreatment mechanism includes a heating and humidifying box, and openings for allowing the non-woven fabric to pass through are opened on two opposite side walls of the heating and humidifying box. Heating frames are installed at the upper and lower ends of the heating and humidifying box, and the two heating frames are respectively arranged above and below the opening of the heating and humidifying box, and the lower end of the heating frame is installed on the upper end of the base through a support plate.
[0010] As a further scheme of the present invention: the drying mechanism includes a drying box, which is installed at the upper end of the base between the printing machine and the die-cutting machine, and openings for allowing non-woven fabrics to pass through are opened on two opposite side walls of the drying box, and four heating rollers for heating and drying the non-woven fabrics are installed inside the drying box, and the four heating rollers allow the non-woven fabrics to pass through the drying box in a U shape, and a cleaning roller for cleaning the heating roller is installed inside the drying box close to the heating roller, and the cleaning roller is tightly attached to the corresponding heating roller, and a cleaning cloth for cleaning the heating roller is installed on the side wall of the cleaning roller, and the rotation direction of the cleaning roller is the same as the rotation direction of the corresponding heating roller, and the rotating shafts of the cleaning roller and the heating roller are both equipped with motors through the side walls of the drying box, and a cleaning component for cleaning the cleaning roller is arranged on the side walls of the cleaning roller, and a hot air conveying component for conveying water vapor evaporated from the side walls of the heating roller and the non-woven fabric and hot air around the heating roller to the inside of the heating and humidifying box is arranged inside the drying box.
[0011] As a further solution of the present invention: a heat insulating layer for keeping the interior of the drying box warm is installed on the inner wall of the drying box.
[0012] As a further solution of the present invention: the cleaning assembly includes a fixed cover corresponding to the cleaning roller one by one, the fixed cover is sleeved on the side wall of the cleaning roller, the two ends of the fixed cover are installed on the inner wall of the drying box, a water suction pipe and a water spray pipe are horizontally installed on the side wall of the fixed cover, the direction from the water spray pipe to the water suction pipe is the same as the rotation direction of the cleaning roller, a plurality of nozzles for spraying water to the cleaning roller are installed inside the fixed cover near the water spray pipe, the nozzles are connected to the water spray pipe through a conduit, and a water suction frame for sucking out sewage on the cleaning roller is installed inside the fixed cover near the water suction pipe The water suction frame is connected to the water suction pipe through a conduit, one end of the water spray pipe passes through the drying box and is installed with a hot water main, a hot water input pipe for conveying hot water to the hot water main is installed on the side wall of the hot water main, the end of the hot water input pipe away from the hot water main is connected to a device for providing hot water, one end of the water suction pipe passes through the drying box and is installed with a wastewater main, the end of the wastewater main away from the water suction pipe is installed on the heating frame, a drain pipe for discharging excess hot water is installed on the upper end of the heating frame, and a water pump for conveying wastewater at high pressure is installed on the wastewater main.
[0013] As a further solution of the present invention: the fixed cover is detachably connected to the inner wall of the drying box by bolts.
[0014] As a further solution of the present invention: the hot air delivery component includes exhaust pipes corresponding to the heating rollers one by one, the exhaust pipes are installed on the side wall of the drying box close to the heating rollers, the output end of the exhaust pipes is installed with a gas main pipe, the output end of the gas main pipe is installed on the heating and humidification box, and the gas main pipe is installed with an air pump for transporting hot and humid air.
[0015] As a further solution of the present invention: the separation mechanism includes a bracket, which is installed on a conveyor belt mounting frame between the die-cutting machine and the waste winding device, and an elastic rod is installed on the side wall of the bracket close to the waste winding device at an angle downward, and a pressure rod for separating the die-cut non-woven fabric from the waste is installed at one end of the elastic rod away from the bracket.
[0016] As a further solution of the present invention: a heat-conducting strip is installed on the side wall of the heating and humidifying box to facilitate the transfer of heat from the sewage inside the heating frame to the heating and humidifying box.
[0017] As a further solution of the present invention: the water absorption frame is tightly attached to the side wall of the cleaning roller through a sealing gasket.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] The present invention allows the printed nonwoven fabric to be in contact with four heating rollers for transportation, so that the heating rollers can quickly dry the nonwoven fabric, thereby preventing the printed pattern on the nonwoven fabric from being damaged during subsequent processing. At the same time, a cleaning roller is used to clean the heating roller in time, thereby preventing the heating roller from damaging the printed pattern on the nonwoven fabric.
[0020] The invention sprays hot water to the cleaning roller through a nozzle to dissolve the stains, and then sucks out the sewage through a water suction frame to clean the cleaning roller, thereby improving the cleaning effect of the cleaning roller on the heating roller.
[0021] At the same time, the sucked out sewage will be transported to the heating frame, and the residual heat of the sewage will be used to heat the heating and humidifying box. A small amount of water will also adhere to the heating roller. Since the side wall of the heating roller is in a high temperature state, the small amount of water on the side wall of the heating roller will be evaporated, and the hot and humid air around the heating roller will be transported to the inside of the heating and humidifying box through the gas main pipe and the exhaust pipe, thereby humidifying and heating the non-woven fabric inside the heating and humidifying box, thereby improving the printing effect of the non-woven fabric. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the structure of the present invention.
[0023] Figure 2 It is a structural schematic diagram of the drying mechanism in the present invention.
[0024] Figure 3 It is a schematic diagram of the structure of the heating and humidifying box and the heating frame in the present invention.
[0025] Figure 4 It is a schematic diagram of the structure of the cleaning component in the present invention.
[0026] Among them: 1. Base; 2. Non-woven fabric conveying equipment; 3. Heating and humidifying box; 4. Heating frame; 5. Drain pipe; 6. Air pump; 7. Printing machine; 8. Gas main pipe; 9. Die-cutting machine; 10. Bracket; 11. Elastic rod; 12. Waste winding equipment; 13. Conveyor belt; 14. Pressure rod; 15. Hot water main pipe; 16. Waste water main pipe; 17. Hot water input pipe; 18. Drying box; 19. Water pump; 20. Water suction pipe; 21. Heating roller; 22. Exhaust pipe; 23. Water spray pipe; 24. Fixed cover; 25. Cleaning roller; 26. Nozzle; 27. Water suction frame. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0028] See also Figure 1-Figure 4 In an embodiment of the present invention, a non-woven fabric printing and die-cutting machine includes a base 1, a printing machine 7 for printing non-woven fabrics is installed on the upper end of the base 1, a non-woven fabric conveying device 2 for conveying non-woven fabrics is installed on the upper end of the base 1 on the input end side of the printing machine 7, a die-cutting machine 9 for die-cutting the printed non-woven fabrics is installed on the upper end of the base 1 on the output end side of the printing machine 7, a conveyor belt 13 for conveying the die-cut non-woven fabrics is horizontally arranged at the output end of the die-cutting machine 9, a mounting frame of the conveyor belt 13 is installed on the upper end of the base 1, a waste winding device 12 for winding and collecting waste after die-cutting is arranged above the conveyor belt 13, and a mounting frame of the waste winding device 12 is installed on the upper end of the base 1.
[0029] A pretreatment mechanism for humidifying and heating the non-woven fabric is arranged between the non-woven fabric conveying device 2 and the printing machine 7, a drying mechanism for drying the printed non-woven fabric is arranged between the printing machine 7 and the die-cutting machine 9, and a separation mechanism for separating the die-cut non-woven fabric from the waste is arranged on the conveyor belt 13 between the waste winding device 12 and the die-cutting machine 9.
[0030] The pretreatment mechanism includes a heating and humidifying box 3, and openings for allowing non-woven fabric to pass through are opened on two opposite side walls of the heating and humidifying box 3. Heating frames 4 are installed at the upper and lower ends of the heating and humidifying box 3. The two heating frames 4 are respectively arranged above and below the opening of the heating and humidifying box 3, and the lower end of the heating frame 4 is installed on the upper end of the base 1 through a support plate.
[0031] The drying mechanism includes a drying box 18, which is installed at the upper end of the base 1 between the printing machine 7 and the die-cutting machine 9. Two opposite side walls of the drying box 18 are provided with openings for the non-woven fabric to pass through. Four heating rollers 21 for heating and drying the non-woven fabric are installed inside the drying box 18. The four heating rollers 21 allow the non-woven fabric to pass through the drying box 18 in a U shape. A cleaning roller 25 for cleaning the heating roller 21 is installed inside the drying box 18 near the heating roller 21. The cleaning roller 25 is in close contact with the corresponding heating roller 21. A cleaning cloth for cleaning the heating roller 21 is installed on the side wall of the cleaning roller 25, and the rotation direction of the cleaning roller 25 is the same as the rotation direction of the corresponding heating roller 21. The rotating shafts of the cleaning roller 25 and the heating roller 21 pass through the side walls of the drying box 18 and are both equipped with motors. A cleaning component for cleaning the cleaning roller 25 is arranged on the side wall of the cleaning roller 25, and a hot air conveying component for conveying water vapor evaporated from the side wall of the heating roller 21 and the non-woven fabric and the hot air around the heating roller 21 to the inside of the heating and humidifying box 3 is arranged inside the drying box 18.
[0032] When in use, the cleaning roller 25 and the heating roller 21 are started to rotate, so that the heating roller 21 heats and dries the nonwoven fabric printed by the printing machine 7 , and the cleaning roller 25 cleans the side wall of the heating roller 21 .
[0033] The cleaning assembly includes a fixed cover 24 corresponding to the cleaning roller 25, the fixed cover 24 is sleeved on the side wall of the cleaning roller 25, and the two ends of the fixed cover 24 are installed on the inner wall of the drying box 18. A suction pipe 20 and a water spray pipe 23 are horizontally installed on the side wall of the fixed cover 24. The direction from the water spray pipe 23 to the suction pipe 20 is the same as the rotation direction of the cleaning roller 25. A plurality of nozzles 26 for spraying water to the cleaning roller 25 are installed inside the fixed cover 24 near the water spray pipe 23. The nozzle 26 is connected to the water spray pipe 23 through a conduit. A water suction frame 27 for sucking out sewage on the cleaning roller 25 is installed inside the fixed cover 24 near the water suction pipe 20. The water suction frame 27 is connected to the water suction pipe 20 through a conduit, one end of the water spray pipe 23 passes through the drying box 18 and is installed with a hot water main pipe 15, a hot water input pipe 17 for conveying hot water to the hot water main pipe 15 is installed on the side wall of the hot water main pipe 15, the end of the hot water input pipe 17 away from the hot water main pipe 15 is connected to a device for providing hot water, one end of the water suction pipe 20 passes through the drying box 18 and is installed with a wastewater main pipe 16, the end of the wastewater main pipe 16 away from the water suction pipe 20 is installed on the heating frame 4, the upper end of the heating frame 4 is installed with a drain pipe 5 for discharging excess hot water, and a water pump 19 for conveying wastewater at high pressure is installed on the wastewater main pipe 16.
[0034] When in use, hot water is transported to the inside of the water spray pipe 23 through the hot water input pipe 17 and the hot water main pipe 15. The water spray pipe 23 sprays the hot water on the side wall of the cleaning roller 25 through the nozzle 26. As the cleaning roller 25 rotates, the water pump 19 is started at the same time. Under the action of negative pressure, the water suction frame 27 sucks out the sewage on the cleaning roller 25 and transports it to the inside of the water suction pipe 20. The water suction pipe 20 transports the sewage to the inside of the heating frame 4 through the wastewater main pipe 16.
[0035] The hot air delivery assembly includes an exhaust pipe 22 corresponding one to one with the heating roller 21, and the exhaust pipe 22 is installed on the side wall of the drying box 18 near the heating roller 21. The output end of the exhaust pipe 22 is installed with a gas main pipe 8, and the output end of the gas main pipe 8 is installed on the heating and humidification box 3. The gas main pipe 8 is installed with an air pump 6 for transporting hot and humid air.
[0036] When the cleaning roller 25 cleans the heating roller 21, some water will adhere to the side wall of the heating roller 21. Under the heating of the heating roller 21, the water on the side wall of the heating roller 21 will evaporate, and the air pump 6 will be started. The air pump 6 will transport the hot and humid air around the heating roller 21 to the inside of the heating and humidifying box 3 through the air main pipe 8 and the exhaust pipe 22, thereby humidifying and heating the non-woven fabric inside the heating and humidifying box 3.
[0037] The separation mechanism includes a bracket 10, which is installed on a conveyor belt 13 mounting frame between the die-cutting machine 9 and the waste winding device 12. An elastic rod 11 is installed obliquely downward on the side wall of the bracket 10 close to the waste winding device 12, and a pressure rod 14 for separating the die-cut non-woven fabric from the waste is installed at one end of the elastic rod 11 away from the bracket 10.
[0038] Working principle of non-woven printing die-cutting machine:
[0039] When in use, the nonwoven fabric conveying device 2 outputs the nonwoven fabric, which passes through the heating and humidifying box 3, the printing machine 7, the drying box 18 and the die-cutting machine 9 in sequence, wherein the nonwoven fabric is U-shaped and sleeved on the heating roller 21 inside the drying box 18.
[0040] The cleaning roller 25 and the heating roller 21 are started to rotate, so that the heating roller 21 heats and dries the non-woven fabric printed by the printing machine 7, and the cleaning roller 25 cleans the side wall of the heating roller 21. At the same time, hot water is transported to the inside of the water spray pipe 23 through the hot water input pipe 17 and the hot water main pipe 15. The water spray pipe 23 sprays the hot water on the side wall of the cleaning roller 25 through the nozzle 26. As the cleaning roller 25 rotates, the water pump 19 is started at the same time. Under the action of negative pressure, the water suction frame 27 sucks out the sewage on the cleaning roller 25 and transports it to the inside of the water suction pipe 20. The water suction pipe 20 transports the sewage to the inside of the heating frame 4 through the wastewater main pipe 16.
[0041] When the cleaning roller 25 cleans the heating roller 21, some water will adhere to the side wall of the heating roller 21. Under the heating of the heating roller 21, the water on the side wall of the heating roller 21 will evaporate, and the air pump 6 will be started. The air pump 6 will transport the hot and humid air around the heating roller 21 to the inside of the heating and humidifying box 3 through the air main pipe 8 and the exhaust pipe 22, thereby humidifying and heating the non-woven fabric inside the heating and humidifying box 3.
[0042] After the die-cutting machine 9 die-cuts the non-woven fabric, under the action of elastic force, the pressure rod 14 pushes the die-cut non-woven fabric downward to remove the waste and move it to the conveyor belt 13, thereby separating the non-woven fabric from the waste.
[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.
Claims
1. A non-woven fabric printing and die-cutting machine, comprising a base (1), a printing machine (7) for printing non-woven fabrics being mounted on the upper end of the base (1), a non-woven fabric conveying device (2) for conveying non-woven fabrics being mounted on the upper end of the base (1) on the input end side of the printing machine (7), a die-cutting machine (9) for die-cutting the printed non-woven fabrics being mounted on the upper end of the base (1) on the output end side of the printing machine (7), a conveyor belt (13) for conveying the die-cut non-woven fabrics being horizontally arranged at the output end of the die-cutting machine (9), a mounting frame of the conveyor belt (13) being mounted on the upper end of the base (1), a waste material reeling device (12) for reeling and collecting waste material after die-cutting being mounted above the conveyor belt (13), and a mounting frame of the waste material reeling device (12) being mounted on the upper end of the base (1); It is characterized in that A pretreatment mechanism for humidifying and heating the nonwoven fabric is provided between the nonwoven fabric conveying device (2) and the printing machine (7), a drying mechanism for drying the printed nonwoven fabric is provided between the printing machine (7) and the die-cutting machine (9), and a separation mechanism for separating the die-cut nonwoven fabric from the waste is provided on the conveyor belt (13) between the waste winding device (12) and the die-cutting machine (9).
2. The nonwoven printing and die-cutting machine according to claim 1, characterized in that: The pretreatment mechanism comprises a heating and humidifying box (3), two opposite side walls of the heating and humidifying box (3) are provided with openings for allowing the non-woven fabric to pass through, the upper end and the lower end of the heating and humidifying box (3) are both installed with heating frames (4), the two heating frames (4) are respectively arranged above and below the opening of the heating and humidifying box (3), and the lower end of the heating frame (4) is installed on the upper end of the base (1) through a support plate.
3. The nonwoven printing and die-cutting machine according to claim 2, characterized in that: The drying mechanism comprises a drying box (18), the drying box (18) being mounted on the upper end of the base (1) between the printing machine (7) and the die-cutting machine (9), two opposite side walls of the drying box (18) being provided with openings for allowing the non-woven fabric to pass through, four heating rollers (21) for heating and drying the non-woven fabric being mounted inside the drying box (18), the four heating rollers (21) allowing the non-woven fabric to pass through the drying box (18) in a U-shape, a cleaning roller (25) for cleaning the heating roller (21) being mounted inside the drying box (18) near the heating roller (21), the cleaning roller (25) being in close contact with the corresponding heating roller ( 21), a cleaning cloth for cleaning the heating roller (21) is installed on the side wall of the cleaning roller (25), the rotation direction of the cleaning roller (25) is the same as the rotation direction of the corresponding heating roller (21), the rotation axes of the cleaning roller (25) and the heating roller (21) pass through the side wall of the drying box (18) and are both equipped with motors, a cleaning component for cleaning the cleaning roller (25) is arranged on the side wall of the cleaning roller (25), and a hot air conveying component for conveying water vapor evaporated from the side wall of the heating roller (21) and the non-woven fabric and hot air around the heating roller (21) to the inside of the heating and humidifying box (3) is arranged inside the drying box (18).
4. The nonwoven printing and die-cutting machine according to claim 3, characterized in that: A heat insulating layer for insulating the interior of the drying box (18) is installed on the inner wall of the drying box (18).
5. The nonwoven printing and die-cutting machine according to claim 3, characterized in that: The cleaning assembly comprises a fixed cover (24) corresponding to the cleaning roller (25) in a one-to-one manner, the fixed cover (24) being sleeved on the side wall of the cleaning roller (25), the two ends of the fixed cover (24) being mounted on the inner wall of the drying box (18), a water suction pipe (20) and a water spray pipe (23) being mounted horizontally on the side wall of the fixed cover (24), the direction from the water spray pipe (23) to the water suction pipe (20) being the same as the rotation direction of the cleaning roller (25), a plurality of nozzles (26) for spraying water to the cleaning roller (25) being mounted inside the fixed cover (24) near the water spray pipe (23), the nozzles (26) being connected to the water spray pipe (23) via a conduit, a water suction frame (27) for sucking out sewage on the cleaning roller (25) being mounted inside the fixed cover (24) near the water suction pipe (20), The water absorption frame (27) is connected to the water absorption pipe (20) through a conduit; one end of the water spray pipe (23) passes through the drying box (18) and is installed with a hot water main pipe (15); a hot water input pipe (17) for conveying hot water to the hot water main pipe (15) is installed on the side wall of the hot water main pipe (15); one end of the hot water input pipe (17) away from the hot water main pipe (15) is connected to a device for providing hot water; one end of the water absorption pipe (20) passes through the drying box (18) and is installed with a waste water main pipe (16); one end of the waste water main pipe (16) away from the water absorption pipe (20) is installed on the heating frame (4); a drain pipe (5) for discharging excess hot water is installed on the upper end of the heating frame (4); and a water pump (19) for conveying waste water at high pressure is installed on the waste water main pipe (16).
6. The nonwoven printing and die-cutting machine according to claim 5, characterized in that: The fixed cover (24) is detachably connected to the inner wall of the drying box (18) by bolts.
7. The nonwoven printing and die-cutting machine according to claim 5, characterized in that: The hot air conveying assembly comprises an exhaust pipe (22) corresponding to each heating roller (21), the exhaust pipe (22) being mounted on a side wall of a drying box (18) close to the heating roller (21), an air supply main pipe (8) being mounted on the output end of the exhaust pipe (22), the output end of the air supply main pipe (8) being mounted on a heating and humidifying box (3), and an air supply pump (6) for conveying hot and humid air being mounted on the air supply main pipe (8).
8. The nonwoven printing and die-cutting machine according to claim 1, characterized in that: The separation mechanism comprises a bracket (10), the bracket (10) being mounted on a conveyor belt (13) mounting frame between a die-cutting machine (9) and a waste material winding device (12), an elastic rod (11) being mounted obliquely downward on a side wall of the bracket (10) close to the waste material winding device (12), and a pressure rod (14) for separating the die-cut nonwoven fabric from the waste material being mounted on one end of the elastic rod (11) away from the bracket (10).
9. The nonwoven printing and die-cutting machine according to claim 5, characterized in that: Heat-conducting strips are installed on the side walls of the heating and humidifying box (3) to facilitate the transfer of heat from sewage inside the heating frame (4) to the heating and humidifying box (3).
10. The nonwoven printing and die-cutting machine according to claim 5, characterized in that: The water absorption frame (27) is tightly attached to the side wall of the cleaning roller (25) via a sealing gasket.