JP5019077B2 - Garbage roll cleaning device and cleaning liquid discharge nozzle - Google Patents

Description

  The present invention adheres to the surface of a flat plate material such as a plastic film, a metal sheet, a plastic plate, a metal plate, a corrugated cardboard, paper, or a fabric conveyed to a processing device such as a printing device, a coating device, or an embossing / embossing device. The present invention relates to a dust removing roll cleaning device and a cleaning liquid discharge nozzle for wiping dust fine powder.

As a wiping roll for wiping off dust fine particles adhering to the surface of the flat plate material conveyed to the conveying device, a roll having a sticky peripheral surface is used (for example, Patent Documents 1, 2, 3, 4). 5, 6, 7, 8).
As shown in FIG. 1, it is known that this kind of dust collecting roll 31 is pushed out and applied to the flat plate material 33 only when dust dust is found (for example, Patent Documents 1, 2, 3, 5, 6). , 7, 8).
As shown in FIGS. 1 to 3, a cleaning device 32 is known in which the wiping sheet 18 delivered from the delivery roll 24 to the take-up roll 25 is brought into sliding contact to wipe off dust fine powder adhering to the dust removal roll 31. (For example, refer to Patent Documents 2, 3, 4, 7, and 8).
As shown in FIG. 2, a cleaning device 32 that pushes the wiping sheet 18 to the dust removal roll 31 only when dust dust is found on the peripheral surface of the dust removal roll 31 is also known (for example, patents). References 3 and 4).
The width of the wiping sheet 18 is made smaller than the length (width) of the dust removing roll 31, and the cleaning device 32 provided with the wiping sheet 18 is moved in the axial direction (length direction) of the dust removing roll 31. It is also known to wipe off dust fine powder, and to allow the wiping sheet 18 to act only on the dust fine powder adhering portion of the dust removing roll 31 (see, for example, Patent Documents 3 and 8).
It is publicly known that a cleaning liquid discharge nozzle is provided toward the peripheral surface of the dust removal roll 31 and the wiping sheet 18 to apply the cleaning liquid to the dust removal roll and the wiping sheet (for example, Patent Documents 2, 3, 4, 7). , 8).
As shown in FIG. 1, two sets of dust removal rolls 31a and 31b are alternately moved to one cleaning device 32 to wipe off dust fine powder, and these two dust removal rolls 31a and 31b are used alternately. It is also well known (see, for example, Patent Documents 2, 4, 7, and 8).

JP 63-012388 (Japanese Patent Publication No. 04-61705) Japanese Patent Laid-Open No. 01-258951 (Japanese Patent Publication No. 06-47284) Japanese Patent Laid-Open No. 02-227177 (Japanese Patent Publication No. 05-79395) Japanese Patent Laid-Open No. 05-024184 (Japanese Patent No. 2619748) Japanese Patent Laid-Open No. 05-309349 (Japanese Patent Publication No. 06-83821) Japanese Patent Laid-Open No. 06-269953 (Japanese Patent Publication No. 07-53264) Japanese Patent Laid-Open No. 08-047674 (Japanese Patent No. 3005705) Japanese Patent Laid-Open No. 08-187457 (Japanese Patent No. 2687118)

The cleaning liquid supplied to the wiping sheet 18 of the dust removing roll cleaning device 32 is not always discharged from the discharge nozzle, but when the adhesiveness of the peripheral surface of the dust removing roll is lowered or the wiping sheet is When it is dry, or when dust fine powder adheres to the peripheral surface of the dust removal roll or the wiping sheet, and the peripheral surface of the dust removal roll is sticky and is operating normally, When the wiping sheet is in a wet state containing cleaning liquid, when the peripheral surface of the dust removal roll and the wiping sheet are in a clean state, the cleaning liquid is not discharged and the discharge nozzle is in a closed and stationary state. .
In the stationary state, when dust fine powder moves from the dust removal roll or wiping sheet to the discharge nozzle, clogging occurs, the discharge nozzle does not operate normally, and the discharge amount of the cleaning liquid from the discharge nozzle changes. Is not normally applied, and the cleaning function of the dust removal roll and the wiping sheet is impaired.

  Accordingly, an object of the present invention is to eliminate clogging of the discharge port of the discharge nozzle due to dust fine powder.

The cleaning liquid discharge nozzle of the present invention includes a sheet through which the cleaning liquid passes , and is a cleaning liquid discharge nozzle that discharges the cleaning liquid onto the sheet, and is supplied from a plurality of discharge ports 11 that discharge the cleaning liquid and the cleaning liquid supply pipe 12. The nozzle body 15 including the inlet 13 into which the cleaning liquid enters and the flow pipe 14 that guides the cleaning liquid from the inlet 13 to the plurality of discharge ports 11 moves forward and backward from the flow pipe 14 toward the plurality of discharge ports 11. And a needle bar drive device 17 for driving the needle bar 16 forward and backward toward the plurality of discharge ports 11, and the nozzle body 15 has a slidable contact surface 19 for slidingly contacting the sheet. The first feature is that a plurality of discharge ports 11 are opened on the slidable contact surface 19 and the sheet is in slidable contact with the slidable contact surface 19 where the plurality of discharge ports 11 are opened. To do.

A second feature of the cleaning liquid discharge nozzle according to the present invention is that, in addition to the first feature, a groove hole 20 in which the needle rod 16 is fitted and moved forward and backward is provided in the nozzle body 15, and the groove hole is provided. An air supply pipe 23 for sending air to 20 is connected .

A third aspect of the cleaning liquid discharge nozzle according to the present invention, the first, in addition to the second one of the features, the nozzle body 15 has a built-in Hari桿driving device 17, of the flow pipe 14 The wall surface is provided with a protruding port 21 through which the needle rod 16 protrudes, the slot 20 branches from the flow pipe 14 and continues from the protruding port 21 to the needle rod drive device 17, and the rear end of the needle rod 16 is The needle rod 16 is connected to the needle rod driving device 17, and the needle rod 16 can move forward and backward to the discharge port 11 through the flow pipe 14.

  A fourth feature of the cleaning liquid discharge nozzle according to the present invention is that, in addition to any of the first, second, and third features, the needle rod drive device 17 is any one of an air cylinder, a hydraulic cylinder, and a solenoid. There is a point that the rear end of the needle bar 16 is connected to a follower (piston) 22 of the needle bar driving device 17.

  The fifth feature of the cleaning liquid discharge nozzle according to the present invention is that, in addition to any of the third and fourth features, the air supply pipe 23 that feeds air into the groove hole 20 in which the needle rod 16 is fitted and moved forward and backward. Is at the point where is connected.

The dust removal roll cleaning device according to the present invention includes a wiping sheet 18 that is in sliding contact with the peripheral surface of the dust removal roll 31, and a backup material that presses the wiping sheet 18 against the peripheral surface of the dust removal roll 31. The backup material has a plurality of discharge ports 11 that discharge the cleaning liquid, an injection port 13 into which the cleaning liquid supplied from the cleaning liquid supply pipe 12 enters, and a flow that guides the cleaning liquid from the injection port 13 to each of the plurality of discharge ports 11. A pipe 14, a needle rod 16 that moves forward and backward from the flow tube 14 toward the plurality of discharge ports 11, and a needle rod drive device 17 that drives the needle rod 16 forward and backward toward the plurality of discharge ports 11. The first feature is that the cleaning liquid discharge nozzle 30 is configured , the backup material has a sliding contact surface 19 that is in sliding contact with the wiping sheet 18, and a plurality of discharge ports 11 are opened in the sliding contact surface 19. And
A second feature of the dust removal roll cleaning apparatus according to the present invention is that, in addition to the first feature, a groove 20 is provided in the backup material, in which the needle rod 16 is fitted and moved forward and backward. An air supply pipe 23 for sending air into the hole 20 is connected.

A third feature of the dust removal roll cleaning apparatus according to the present invention is that, in addition to any of the first and second features, a carrier 34 that moves parallel to the shaft core 35 of the dust removal roll 31, and the carrier. A rail 38 that guides 34 in parallel with the shaft core 35 of the dust removal roll 31 is provided, and a backup material constituting the wiping sheet 18 and the cleaning liquid discharge nozzle 30 is mounted on the carrier 34.

In the discharge nozzle 30 of the present invention, a needle rod 16 that moves forward and backward from the flow pipe 14 toward the discharge port 11 and a needle rod drive device 17 that drives the needle rod 16 forward and backward toward the discharge port 11 are provided in the nozzle body 15. It is attached.
For this reason, when the discharge nozzle 30 of the present invention is used in the transport process of a flat plate material that is easily charged with static electricity and dust dust, even if dust dust adheres to the cleaning liquid discharge port 11 and clogging occurs, the dust is generated. Fine powder is knocked out of the discharge port 11 by the needle rod 16 moving from the flow pipe 14 to the discharge port 11 and is simultaneously poured out into the cleaning liquid discharged from the discharge port 11, so that clogging at the discharge port 11 is avoided. Is done.
As described above, dust fine powder is discharged and eliminated from the inside of the discharge nozzle 30. Therefore, even if the discharge port 11 of the discharge nozzle 30 is covered with a sheet or the like, the sheet or the like does not interfere with dust fine powder removal.
Therefore, when the present invention is applied to the discharge nozzle 30 that applies the processing liquid to be used by being brought close to the flat plate material conveyed to the processing apparatus, it is advantageous that the processing liquid to be discharged is not scattered. is there.

  When the discharge nozzle 30 is stopped, if the needle rod 16 is pushed out to the discharge port 11, the discharge port 11 is also blocked by the needle rod 16, so that the treatment liquid flows down when the discharge nozzle 30 is stationary. In addition, since the discharge port 11 is not dried, it is possible to avoid clogging due to the aggregate of the dried cleaning liquid.

In the dust removing roll cleaning device 32 for wiping off dust fine powder adhering to the surface of the flat plate material, the cleaning sheet is applied to the wiping sheet 18 for wiping off the dust fine powder, and the wiping sheet 18 is slid onto the dust removing roll 31. It touches.
The discharge nozzle 30 has a sliding contact surface 19 that is in sliding contact with the wiping sheet 18, and the discharge port 11 is opened in the sliding contact surface 19.
Therefore, the discharge nozzle 30 of the present invention can also be used as a backup material that presses the wiping sheet 18 against the dust removal roll 31 or as a guide bar that guides the wiping sheet 18 from the delivery roll 24 to the take-up roll 25. .

  In particular, in the discharge nozzle 30 in which the driving device 17 of the needle rod 16 for removing dust fine powder from the discharge port 11 is housed in the nozzle body 15, the outer shape becomes a thick bowl shape, which is used as a backup material or a guide bar. Also, the number of members of the dust removal roll cleaning device 32 can be reduced, and the manufacturing cost of the cleaning device 32 is reduced.

  In addition, since sophisticated micro air cylinders and micro hydraulic cylinders are commercially available, the discharge nozzle 30 becomes compact and simple when applied to the needle rod drive device 17, and the discharge nozzle 30 is disposed on the wiping sheet 18. By using both the backup material (15) and the guide bar, the dust collecting roll cleaning device 32 can be made compact and simple and easy to handle.

In the present invention, since the air supply pipe 23 for sending air is connected to the groove hole 20 in which the needle rod 16 is fitted and moved forward and backward, in addition to the cleaning liquid and the needle rod 16, the air is blown from the discharge port 11 through the groove hole 20. Dust fine powder is also discharged by the high-pressure air that comes out.
Since air does not enter from the discharge port 11, the discharged dust fine powder does not return to the discharge port 11, and clogging at the discharge port 11 is more reliably avoided.

  When the dust removal roll cleaning device 32 that also uses the discharge nozzle 30 of the present invention as a backup material is mounted on the carrier 34 and travels in the axial direction 36 of the dust removal roll 31 along the rail 38, the wiping sheet 18 is used. As a result, the entire width of the dust removal roll 31 is cleaned, so that the effective width of the dust removal roll cleaning device 32 can be made narrower than the entire width of the dust removal roll 31, and the dust removal roll cleaning device 32 is also compact. Thus, the manufacturing cost is reduced, and it is economical because it is not necessary to use a wide wiping sheet having the same width as the entire width of the dust removing roll 31.

  In the present invention, since the dust removal roll cleaning device 32 is mounted on the carrier 34, the dust removal roll cleaning device 32 is driven forward and backward by a driving means such as an air cylinder from the carrier 34 toward the dust removal roll 31, and dust dust adheres. The dust collecting roll 31 can be partially cleaned, and the entire peripheral surface of the wide dust collecting roll 31 does not have to be rubbed by the wiping sheet 18, so that the adhesive film on the peripheral surface of the dust collecting roll 31 is damaged. Thus, the useful life of the dust removing roll 31 is extended, and the risk of the dust fine powder wiping off from the wiping sheet 18 to the peripheral surface of the dust removing roll 31 during the cleaning is also avoided.

It is a cross-sectional side view of the conventional dust removal roll cleaning apparatus provided in the conveyance process of a flat plate member. It is a cross-sectional side view of the conventional dust removal roll cleaning apparatus provided in the conveyance process of a flat plate member. It is a cross-sectional side view of the conventional dust removal roll cleaning apparatus provided in the conveyance process of a flat plate member. It is a partial cutaway principal part perspective view of the dust removal roll cleaning apparatus of this invention provided in the conveyance process of a flat plate member. It is a partially cutaway perspective view of the cleaning liquid discharge nozzle of the present invention. It is a cross-sectional side view of the dust removal roll cleaning apparatus of this invention provided in the conveyance process of a flat plate member.

  In the present invention, “sliding contact” means that the peripheral surface of the dust removal roll and the wiping sheet rub against each other while maintaining a spread surface contact, not a point contact or a line point contact. "Means a flat surface that is a flat curved surface or flat plate with no discharge port or the like protruding like the peripheral surface of the roll in sliding contact.

  As shown in FIG. 5, the discharge nozzle 30 can be configured by overlapping a plurality of nozzle bodies 15 a, 15 b, 15 c..., And a plurality of auxiliary members 39 are stacked on the nozzle body 15. You can also As described above, by overlapping or combining the nozzle main body 15 and the auxiliary member 39, the area of the sliding contact surface 19 can be enlarged or reduced, and the strength of the discharge nozzle 30 can be adjusted.

The dust removing roll cleaning device 32 shown in FIG. 4 includes a sending roll 24 that sends out the wiping sheet 18, a winding roll 25 that takes up the wiping sheet 18, and a wiping sheet that is conveyed from the sending roll to the winding roll. Is provided with a backup material that is pressed against the dust collecting roll 31, and the discharge nozzle 30 of the present invention is applied to the backup material.
The width of the wiping sheet 18 is narrower than the width of the dust removal roll 31, and the cleaning device 32 is mounted on a carrier (moving device) 34 that runs on the rail 38, and the axial direction 36 of the dust removal roll 36. The dust fine powder adhering to the peripheral surface of the dust removal roll can be wiped off (FIG. 6).

The discharge nozzle 30 has a slidable contact surface 19 that slidably contacts the wiping sheet 18 as a backup material 15, and a plurality of discharge ports 11 are provided on the slidable contact surface 19, so that cleaning liquid can be applied from the entire surface of the slidable contact surface 19. It is designed to be discharged.
The discharge port 11 is provided as an intersection with a straight line intersecting the sliding contact surface 19, and the straight portion 37 following the discharge port 11 of the flow pipe 14 is straightened and intersects the sliding contact surface 19. ing.
The cleaning device 32 has a structure for cleaning a set of two dust collection rolls 31 described in Patent Document 1, and two discharges are used as backup materials for the two dust collection rolls 31a and 31b. Nozzles 30 and 30 are arranged in parallel to the axes of the delivery roll 24 and the take-up roll 25 on the delivery roll side and the take-up roll side (FIG. 6).

  The injection surfaces 13 corresponding to the number of the discharge ports 11 are opened on the opposing surfaces where the two discharge nozzles 30 and 30 face each other, and the flow pipe 14 is bent at a right angle from the injection port 13 to the discharge port 11 in the middle. Followed.

The straight line portion 37 of the flow pipe that continues from the sliding contact surface 19 branches straightly into the groove hole 20, and the operation direction of the piston 22 flows from the groove hole 20 to the end of the branched groove hole 20. An air cylinder 17 is embedded in the nozzle body 15 in a direction following the straight portion 37 of the pipe.
The needle rod 16 is connected to the piston 22 and inserted into the groove hole 20, and when the piston 22 is driven toward the groove hole 20, the straight line of the flow pipe until the tip of the needle rod 16 reaches the discharge port 11. The portion 37 is extruded from the slot 20.

  In the dust removal roll cleaning device 32 shown in FIGS. 4 and 5, the straight line portion 37 of the flow pipe 14 straight in a straight line is orthogonal to the sliding contact surface 19 in the discharge port 11, but in a straight line shape. The straight portion 37 may be inclined with respect to the slidable contact surface 19 as long as it is straight and does not hinder the forward and backward movement of the needle rod 16 protruding from the slot 20.

The nozzle body 15 is provided with a flow pipe 26 extending to the slot 20 and a flow pipe 27 continuing to the air cylinder 17, and these flow pipes 26 and 27 are connected to the respective air supply pipes 23 and 28. Has been.
When compressed air is fed from the air cylinder supply pipe 28, the tip of the needle rod 16 is pushed out to the discharge port 11 by the piston 22.
When compressed air is fed from the slot air supply pipe 26, the compressed air is ejected from the discharge port 11 through the slot 20 and the straight portion 37 of the flow pipe.
Therefore, when dust fine powder adheres to the discharge port 11, dust fine powder is eliminated by the needle rod 16 and compressed air, and clogging of the discharge port 11 is avoided.

  In FIG. 4, the supply pipe 12 and the supply pipes 23 and 28 protrude outside the nozzle body 15 for the sake of drawing. However, as shown in FIG. 5, the embedded grooves 41 provided in the nozzle body 15 are provided. The supply pipe 12 and the supply pipes 23 and 28 can be embedded in 42 and 43.

The supply pipe 12 and the supply pipes 23 and 28 are provided with solenoid valves (not shown) that are opened and closed by a computer.
The cleaning device 32 is provided with a sensor for detecting the degree of infiltration of the wiping sheet 18 to detect the degree of infiltration and moist spots of the wiping sheet 18, and opens and closes the electromagnetic valve via a computer according to the detection signal, The dust fine powder adhering to 11 is removed, and the discharge amount of the cleaning liquid from all of the plurality of discharge ports 11, 11, 11... On the sliding contact surface 19 is controlled.

  A pipe can be used for the needle rod 16, and the compressed air sent from the air supply pipe 23 can be ejected from the discharge port 11 through the inner cavity of the pipe.

A necessary detergent is appropriately blended in the cleaning liquid. The detergent solvent may be an inorganic solvent or an organic solvent.
The dust removal roll 31 and the cleaning device 32 may be provided only on one side of the transported flat plate material 33 (FIG. 6), or may be provided on both front and back surfaces of the flat plate material 33 (FIGS. 1 to 3). It is determined whether to remove dust dust from the front or back surface.

The carrier 34 is driven and driven by a screw bolt 40, a wire, or the like along a rail 38 that is arranged in parallel with the shaft core 35 of the dust collecting roll 31.
As described in Patent Documents 1, 2, 3, 5, 6, 7, and 8, the cleaning device 32 moves forward and backward by a driving unit such as an air cylinder from the carrier 34 toward the dust collecting roll 31, The wiping sheet 18 can be brought into sliding contact with the dust removing roll 31 only when cleaning is required.

  The cleaning liquid discharge nozzle 30 of the present invention is a processing liquid applying device that applies a required processing liquid to a flat plate material such as a plastic film, a metal sheet, a plastic plate, a metal plate, a corrugated cardboard, paper, and a cloth conveyed to a processing apparatus. It can be used.

11: Discharge port 12: Cleaning liquid supply pipe 13: Injection port 14: Cleaning liquid distribution pipe 15: Nozzle body (backup material)
16: Needle rod 17: Drive device (air cylinder)
18: Wiping sheet 19: Sliding contact surface 20: Groove hole 21: Protruding port 22: Follower (piston)
23: Slot air supply pipe 24: Delivery roll 25: Winding roll 26: Slot hole distribution pipe 27: Air cylinder distribution pipe 28: Air cylinder supply pipe 30: Discharge nozzle 31: Dust removal roll 32: Dust removal Roll cleaning device 33: Flat plate material 34: Carrier 35: Dust removal roll shaft core 36: Axial core direction 37: Straight portion 38 of the cleaning liquid flow pipe 38: Rail 39: Auxiliary member 40: Screw bolts 41, 42, 43: Embedded groove

Claims (7)

A cleaning liquid discharge nozzle that includes a sheet through which the cleaning liquid passes and discharges the cleaning liquid to the sheet,
A plurality of discharge ports (11) for discharging the cleaning liquid, an injection port (13) into which the cleaning liquid supplied from the cleaning liquid supply pipe (12) enters, and from the injection port (13) to the plurality of discharge ports (11) A needle rod (16) that moves forward and backward from the flow tube (14) toward each of the plurality of discharge ports (11), and a needle rod (16) 16) is provided with a needle rod drive device (17) for driving forward and backward toward each of the plurality of discharge ports (11),
The nozzle body (15) has a slidable contact surface (19) that slidably contacts the sheet, and a plurality of discharge ports (11) are opened in the slidable contact surface (19),
A cleaning liquid discharge nozzle in which the sheet is in sliding contact with the sliding contact surface (19) in which the plurality of discharge ports (11) are opened.   The nozzle body (15) is provided with a slot (20) in which the needle rod (16) is fitted and moved forward and backward, and an air supply pipe (23) for supplying air is connected to the slot (20). The cleaning liquid discharge nozzle according to claim 1.   The nozzle body (15) has a built-in needle rod drive device (17), and a protrusion (21) from which the needle rod (16) projects is provided on the inner wall surface of the flow pipe (14). 20) branches from the flow pipe (14) and continues from the projecting port (21) to the needle rod drive device (17), and the rear end of the needle rod (16) is connected to the needle rod drive device (17). The cleaning liquid discharge nozzle according to claim 1, wherein the needle rod (16) passes through the flow pipe (14) and can move forward and backward to the discharge port (11).   The needle rod drive device (17) is one of an air cylinder, a hydraulic cylinder, and a solenoid, and the rear end of the needle rod (16) is connected to the follower (22) of the needle rod drive device (17). The cleaning liquid discharge nozzle according to any one of claims 1 to 3. A wiping sheet (18) that is in sliding contact with the peripheral surface of the dust removal roll (31), and a backup material that presses the wiping sheet (18) against the peripheral surface of the dust removal roll (31),
The backup material includes a plurality of discharge ports (11) for discharging the cleaning liquid, an injection port (13) into which the cleaning liquid supplied from the cleaning liquid supply pipe (12) enters, and a plurality of each from the injection port (13). A flow pipe (14) that guides the cleaning liquid to the discharge port (11), a needle rod (16) that moves forward and backward from the flow tube (14) toward each of the plurality of discharge ports (11), and a needle rod (16) A cleaning liquid discharge nozzle (30) including a needle rod drive device (17) that is driven back and forth toward each of the plurality of discharge ports (11) is configured.
A dust removing roll cleaning device in which the backup material has a sliding contact surface (19) that is in sliding contact with the wiping sheet (18), and a plurality of discharge ports (11) are opened in the sliding contact surface (19).   The above-mentioned claim, wherein a slot (20) in which the needle rod (16) is fitted and moved forward and backward is provided in the backup material, and an air supply pipe (23) for feeding air into the slot (20) is connected. 5. A dust collection roll cleaning device according to 5. A carrier (34) that moves in the axial direction (36) of the dust removal roll (31), and a rail (38) that guides the carrier (34) in the axial direction (36) of the dust removal roll (31). ,
The dust removal roll cleaning apparatus according to any one of claims 5 to 6, wherein a backup material constituting the wiping sheet (18) and the cleaning liquid discharge nozzle (30) is mounted on the carrier (34).

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