JP2023035601A - Roll leveler, transport device, cleaning method of roll leveler, and cleaning method of transport device - Google Patents

Abstract

To dispense with exchange of a workpiece and a cleaning member.SOLUTION: In a cleaning method of a roll leveler 1, in the state where a belt-like cleaning member 91U is sandwiched between a row of upper work rolls 12 and a first upper pad 21U on its upper side, the upper work rolls 12 are wiped with the cleaning member 91U by sending the cleaning member 91U in the row direction of the upper work rolls 12, or by rotating the upper work rolls 12.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a roll leveler, a conveying device, a roller leveler cleaning method, and a conveying device cleaning method.

A roll leveler is used, for example, to remove the curl and internal distortion of a strip of metal such as steel and aluminum that is fed out from a coil mounted on an uncoiler. A typical roll leveler has a plurality of upper rolls and a plurality of lower rolls arranged in a zigzag pattern so that the belt-shaped workpiece fed out from the coil passes downstream between the rows of the upper rolls and the rows of the lower rolls. is conveyed by a pair of pinch rolls. Since the work is alternately bent by the upper rolls and unbent by the lower rolls, the work is straightened so as to remove the curl.

Foreign matter (for example, metal powder) may adhere to the surface of the work to be passed through the roll leveler. In addition, foreign matter entering from the outside may adhere to the outer peripheral surface of the roll. If a roll to which foreign matter is adhered is used, the surface of the work will be damaged, resulting in a defective product. Therefore, it is necessary to clean the rolls periodically.

Patent Literature 1 discloses a roll cleaning tool in which non-woven fabric is adhered to both surfaces of a thin stainless steel plate. The roll cleaning tool is fixed on the upstream side of the entrance of the roll leveler, and is inserted between the upper roll and the lower roll of the roll leveler from the fixing point. Therefore, when the upper roll and the lower roll rotate, the outer peripheral surfaces of the upper roll and the lower roll are wiped by the roll cleaning tool.

JP-A-2005-66469

However, in the technique described in Patent Document 1, since the roll cleaning tool is inserted between the upper and lower rolls for cleaning, the roll leveler temporarily stops removing curls and internal distortion of the metal work, and removes the work. The cleaning tool must be changed to clean the roll.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to eliminate the need to replace the workpiece and the cleaning member in cleaning the rolls of the roll leveler.

In order to solve the above problems, a plurality of first work rolls arranged to be parallel to each other, parallel to the first work rolls and arranged along the row of the first work rolls, and a plurality of second work rolls offset in a row from each of the first work rolls, wherein the row of the second work rolls is relative to the row of the first work rolls. A strip-shaped cleaning member is sandwiched between the pressing portion pressed against the first work roll on the opposite side of the first work roll and the row of the first work rolls, and the cleaning member is pushed in the row direction of the first work roll. A method for cleaning a roll leveler is provided wherein the first work roll is wiped with the cleaning member by feeding or rotating the first work roll.

Also, a plurality of first work rolls arranged to be parallel to each other, parallel to the first work rolls and arranged along the row of the first work rolls, each of the first work rolls a plurality of second work rolls displaced in the row direction from the first work roll; A strip-shaped cleaning member is wound around the cleaning member, and the cleaning member is provided with a delivery section for delivering the cleaning member, and a winding section for winding the cleaning member delivered from the delivery section, wherein the cleaning member moves from the delivery section to the pressing section. and the first work roll, guided to the winding section, and sandwiched between the pressing section and the first work roll, the winding section pushes the cleaning member A roll leveler is provided wherein the first work roll is wiped by the cleaning member by winding or by rotating the first work roll.

According to the cleaning method and roll leveler described above, since the cleaning member is sandwiched between the first work roll and the abutting portion, whether or not the work exists between the first work roll and the second work roll Regardless, the first work roll can be cleaned by the cleaning member. Even if the work is sandwiched between the first work roll and the second work roll, the first work roll can be cleaned without replacing the work with a cleaning member.

According to the present invention, the cleaning operation of the first work roll can be performed whether or not the work is between the first work roll and the second work roll. Even if the work is sandwiched between the first work roll and the second work roll, the first work roll can be cleaned without replacing the work with a cleaning member.

3 is a side view of the roll leveler 1; FIG. 3 is a side view of the roll leveler 1 showing a state in which cleaning members 91U and 91L are inserted; FIG. FIG. 4 is a side view of the roll leveler 1 showing how the reel rotates forward and backward; It is a side view of the roll leveler 1a. FIG. 10 is a side view of the roll leveler 1a showing a state in which cleaning members 91U and 91L are inserted;

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, although various technically preferable limitations are attached to the embodiments described below in order to carry out the present invention, the scope of the present invention is not limited to the following embodiments and illustrated examples.

[Description of the configuration of the roll leveler]
First, the structure of the roll leveler will be explained.
FIG. 1 is a side view of the roll leveler 1. FIG.
The roll leveler 1 straightens a strip-shaped work 101 supplied from a work supply device such as an uncoiler (not shown). The roll leveler 1 is installed downstream of the work supply device, and the work 101 passes through the roll leveler 1 from front to back. That is, the conveying direction of the work 101 is from the front to the back, with the front side being the upstream side and the rear side being the downstream side.

The roll leveler 1 includes a work roll group 11 composed of a plurality of upper work rolls 12 and a plurality of lower work rolls 13, pads 21U, 21L, 41U and 41L as pressing portions, opening/closing devices 22U, 22L and 42U, 42L, a pinch roll pair 31 composed of an upper pinch roll 32 and a lower pinch roll 33, a base portion 51, a lower frame 52, a machine frame 53, an upper frame 54, a hanging bolt 55, and a lifting spring 56. , an angle adjustment plate 57, four screw down bolts 58, an actuator 59, an upper roll frame 61, a lower roll frame 62, an upper pinch roll frame 63, a lower pinch roll frame 64, and reels 71F and 71R. , 74F, 74R; support portions 72F, 72R, 75F, 75R; motors 73F, 73R, 76F, 76R;
Here, pinch rolls (transport rolls) 32, 33, pads 41U, 41L, opening/closing devices 42U, 42L, actuators 59, upper pinch roll frame 63, lower pinch roll frame 64, reels 71F, 71R, 74F, 74R and motor 81 is a transport device that transports the workpiece 101 .

Here, when the upper work roll 12 corresponds to the first work roll, the lower work roll 13 corresponds to the second work roll, the upper pinch roll 32 to the first pinch roll, the lower pinch roll 33 to the second pinch roll, The pad 21U corresponds to the first pressing portion, the pad 21L to the second pressing portion, the pad 41U to the third pressing portion, and the pad 41L to the fourth pressing portion. On the other hand, when the lower work roll 13 corresponds to the first work roll, the upper work roll 12 corresponds to the second work roll, the lower pinch roll 33 to the first pinch roll, the upper pinch roll 32 to the second pinch roll, and the pad 21L corresponds to the first pressing portion, the pad 21U to the second pressing portion, the pad 41L to the third pressing portion, and the pad 41U to the fourth pressing portion.

The base portion 51 is installed on the floor surface. A lower frame 52 is attached to the upper surface of the base portion 51 . A lower roll frame 62 and a lower pinch roll frame 64 are assembled on the upper surface of the lower frame 52 . Further, a plurality of machine frames 53 are assembled on the upper surface of the lower frame 52 in an upright state. A lower roll frame 62 and a lower pinch roll frame 64 are connected to the lower end of the machine frame 53 . An upper frame 54 is supported by upper end portions of the plurality of machine frames 53 . A hanging bolt 55 vertically penetrates the upper frame 54 above the lower roll frame 62 . A lifting spring 56 is wound around a lifting bolt 55 on the upper side of the upper frame 54, and is compressed while being sandwiched between the head of the lifting bolt 55 and the upper end of the upper frame 54. . Therefore, the lifting spring 56 takes a reaction force from the upper frame 54 and urges the lifting bolt 55 upward. An angle adjustment plate 57 is attached to the lower end of the suspension bolt 55 via a rotation shaft 55a, and the angle adjustment plate 57 is provided so as to be tiltable around the rotation shaft 55a. An upper roll frame 61 is attached to the lower surface of the angle adjustment plate 57 so as to be in surface contact therewith. The upper roll frame 61 , the angle adjustment plate 57 and the suspension bolt 55 are supported by the upper frame 54 by the elastic force of the lifting spring 56 .

A pair of left and right screw down bolts 58 are screwed into the upper frame 54 so as to pass through the upper frame 54 on the front side of the hanger bolt 55 . A pair of left and right screw down bolts 58 are screwed into the upper frame 54 so as to pass through the upper frame 54 on the rear side of the hanger bolt 55 . The lower ends of these screw down bolts 58 contact the upper surface of the angle adjusting plate 57 , and the elastic force of the lifting spring 56 acts on the screw down bolts 58 . The posture, angle and vertical position of the angle adjustment plate 57 and the upper roll frame 61 can be adjusted by individually screwing the screw down bolts 58 .

A pinch roll pair 31 and a work roll group 11 are arranged in order from the front to the rear. A pinch roll pair 31 is a feeder that introduces the work 101 to the roll leveler 1 . The work roll group 11 corrects the work 101 . The pinch roll pair 31 may be arranged not only on the front side of the work roll group 11 but also on the rear side.

The pinch roll pair 31 is composed of an upper pinch roll 32 and a lower pinch roll 33 parallel to each other. The upper pinch roll 32 is rotatably attached to the upper pinch roll frame 63 via bearings or the like. The upper pinch roll frame 63 is attached to the lower ends of the pair of left and right actuators 59 . A pair of left and right actuators 59 are provided so as to hang down from the upper frame 54 . The actuator 59 is, for example, an air cylinder or a hydraulic cylinder, and the upper pinch roll 32 and the upper pinch roll frame 63 are raised and lowered by the actuator 59 . On the upper side of the upper pinch roll 32, the second upper pad 41U is provided so as to be able to come into contact with and separate from the peripheral surface of the upper pinch roll 32 in the vertical direction. The second upper pad 41U extends in the left-right direction so as to cover the peripheral surface of the upper pinch roll 32 from above. A second upper opening/closing device 42U is provided above the second upper pad 41U. The second upper opening/closing device 42U is, for example, an air cylinder or a hydraulic cylinder, and is composed of a cylinder portion and a movable portion that advances and retreats vertically with respect to the cylinder portion. A cylinder portion of the second upper opening/closing device 42U is fixed to the upper pinch roll frame 63 by a bracket (not shown) or the like. A movable portion of the second upper opening/closing device 42U is connected to the second upper pad 41U. When the movable portion of the second upper opening/closing device 42U advances downward from the cylinder portion, the second upper pad 41U is pressed against the upper pinch roll 32, and when the movable portion of the second upper opening/closing device 42U is retracted into the cylinder portion, the second upper opening/closing device 42U moves downward. 2 The upper pad 41U is spaced upward from the upper pinch roll 32. - 特許庁

The lower pinch roll 33 is rotatably attached to the lower pinch roll frame 64 via bearings or the like. The upper pinch roll 32 is provided so as to be vertically movable with respect to the lower pinch roll 33 . Both the upper pinch roll 32 and the lower pinch roll 33 are connected to the motor 81 via a transmission mechanism, but either the upper pinch roll 32 or the lower pinch roll 33 is connected to the motor 81 via a transmission mechanism. It may be Motor 81 is controlled by control unit 82 .

A work roll group 11 is arranged behind the pinch roll pair 31 . The work roll group 11 is composed of a plurality of upper work rolls 12 and a plurality of lower work rolls 13 arranged facing each other vertically. Each upper work roll 12 is attached to the upper roll frame 61 via bearings or the like, and each lower work roll 13 is attached to the lower roll frame 62 via bearings or the like. These upper work rolls 12 are provided parallel to each other and arranged in the front-rear direction. Below the rows of upper work rolls 12, lower work rolls 13 are provided parallel to each other and arranged in the front-rear direction. When the upper work roll 12 and the lower work roll 13 are viewed from the side in the axial direction (that is, in the lateral direction), the upper work roll 12 and the lower work roll 13 are arranged in a zigzag or staggered manner. In other words, each of the lower work rolls 13 is displaced from the upper work rolls 12 in the column direction (that is, in the front-rear direction). The row-wise offset of the lower work roll 13 from the upper work roll 12 is less than the distance between the center axes of adjacent lower work rolls 13 or adjacent upper work rolls 12, preferably equal to one-half that distance. . The upper work roll 12 and the lower work roll 13 are connected to the motor 81 via a transmission mechanism. Either the upper work roll 12 or the lower work roll 13 may be connected to the motor 81 via a transmission mechanism.

Inside the upper roll frame 61 and above the plurality of upper work rolls 12, there is provided a first upper pad 21U that can be brought into contact with and separated from the upper work rolls 12 in the vertical direction. The first upper pad 21U extends in the front-back direction and the left-right direction so as to cover the peripheral surfaces of the plurality of upper work rolls 12 from above. The first upper pad 21U is connected to a first upper opening/closing device 22U above it, and the first upper opening/closing device 22U is attached to the upper roll frame 61 . Like the second upper opening/closing device 42U, the first upper opening/closing device 22U is, for example, an air cylinder or a hydraulic cylinder that raises and lowers the first upper pad 21U. When the first upper opening/closing device 22U moves the first upper pad 21U downward, the first upper pad 21U is pressed against the upper work roll 12, and the first upper opening/closing device 22U moves the first upper pad 21U upward. Then, the first upper pad 21U is separated from the upper work roll 12. As shown in FIG.

At the front end of the upper frame 54, a pair of left and right support portions 72F or one of the left and right support portions 72F is provided so as to protrude forward. A front reel 71F is detachably attached to the support portion 72F. A front motor 73F is attached to the support portion 72F, and a front reel 71F attached to the support portion 72F is detachably connected to the front motor 73F. When the front reel 71F is separated from the front motor 73F, the front reel 71F can be removed from the support portion 72F. When the front motor 73F operates, torque is applied to the front reel 71F. For example, the front motor 73F is a motor with a brake, and the front motor 73F also applies a braking force to the front reel 71F.

At the rear end of the upper frame 54, a pair of left and right support portions 72R or either one of the left and right support portions 72R are provided so as to protrude rearward. A rear reel 71R is detachably attached to the support portion 72R. A rear motor 73R is attached to the support portion 72R, and the rear reel 71R attached to the support portion 72R is detachably connected to the rear motor 73R. When the rear reel 71R is separated from the rear motor 73R, the rear reel 71R can be removed from the support portion 72R. When the rear motor 73R operates, torque is applied to the rear reel 71R. The rear motor 73R also applies a braking force to the rear reel 71R.

A strip-shaped cleaning member 91U is wound around one of the reels 71F and 71R, and the cleaning member 91U drawn out from one of the reels 71F and 71R is hooked and connected to the other. The cleaning member 91U is passed between the plurality of upper work rolls 12 and the first upper pad 21U midway between the reels 71F and 71R, and is sandwiched between the upper work roll 12 and the first upper pad 21U. be Also, the cleaning member 91U is passed between the upper pinch roll 32 and the second upper pad 41U and is sandwiched between the upper pinch roll 32 and the second upper pad 41U.

Inside the lower roll frame 62 and below the plurality of lower work rolls 13 , a first lower pad 21</b>L is provided that can vertically contact and separate from the lower work rolls 13 . The first lower pad 21L extends in the front-rear direction and the left-right direction so as to cover the peripheral surfaces of the plurality of lower work rolls 13 from below. The first lower pad 21L is connected to a first lower opening/closing device 22L below it, and the first lower opening/closing device 22L is attached to the lower roll frame 62. As shown in FIG. The first lower opening/closing device 22L is, for example, an air cylinder or a hydraulic cylinder that raises and lowers the first lower pad 21L. When the first lower opening/closing device 22L moves the first lower pad 21L upward, the first lower pad 21L is pressed against the lower work roll 13, and the first lower opening/closing device 22L moves the first lower pad 21L downward. Then, the first lower pad 21L is separated downward from the lower work roll 13 .

On the lower side of the lower pinch roll 33, the second lower pad 41L is provided so as to be able to contact and separate from the peripheral surface of the lower pinch roll 33 in the vertical direction. The second lower pad 41L extends in the left-right direction so as to cover the peripheral surface of the lower pinch roll 33 from below. The second lower pad 41L is connected to a second lower opening/closing device 42L below it, and the second lower opening/closing device 42L is attached to the lower pinch roll frame 64. As shown in FIG. The second lower opening/closing device 42L is, for example, an air cylinder or a hydraulic cylinder that raises and lowers the second lower pad 41L. When the second lower opening/closing device 42L moves the second lower pad 41L upward, the second lower pad 41L is pressed against the lower pinch roll 33, and the second lower opening/closing device 42L moves the second lower pad 41L downward. Then, the second lower pad 41L is separated downward from the lower pinch roll 33 .

At the front end of the lower frame 52, a pair of left and right support portions 75F or one of the left and right support portions 75F is provided so as to protrude forward. A front reel 74F is detachably attached to the support portion 75F. A front motor 76F is attached to the support portion 75F, and a front reel 74F attached to the support portion 75F is detachably connected to the front motor 76F. When the front reel 74F is separated from the front motor 76F, the front reel 74F can be removed from the support portion 75F. When the front motor 76F operates, torque is applied to the front reel 74F. The front motor 76F also applies a braking force to the front reel 74F.

The rear end of the lower frame 52 is provided with a pair of left and right support portions 75R or one of the left and right support portions 75R so as to protrude rearward. A rear reel 74R is detachably attached to the support portion 75R. A rear motor 76R is attached to the support portion 75R, and a rear reel 74R attached to the support portion 75R is detachably connected to the rear motor 76R. When the rear reel 74R is disconnected from the rear motor 76R, the rear reel 74R can be removed from the support portion 75R. When the rear motor 76R operates, torque is applied to the rear reel 74R. The rear motor 76R also provides braking force to the rear reel 74R.

A strip-shaped cleaning member 91L is wound around one of the reels 74F and 74R, and the cleaning member 91L drawn out from one of the reels 74F and 74R is hooked and connected to the other. The cleaning member 91L is passed between the plurality of lower work rolls 13 and the first lower pad 21L in the middle between the reels 74F and 74R, and is sandwiched between the lower work roll 13 and the first lower pad 21L. Also, the cleaning member 91L is passed between the lower pinch roll 33 and the second lower pad 41L and is sandwiched between the lower pinch roll 33 and the second lower pad 41L.

The cleaning members 91U and 91L are, for example, cloth, paper, adhesive tape, or composite sheets. The cloth may be knitted, woven, or nonwoven, and the fibers used in the cloth may be either natural fibers or chemical fibers (artificial fibers). Chemical fibers include inorganic fibers (for example, carbon fibers) or organic fibers (for example, polyester synthetic fibers and polyamide synthetic fibers). The adhesive tape may be either single-sided adhesive tape or double-sided adhesive tape. A composite sheet is a thin belt-like flexible material (for example, steel plate, stainless steel plate) with a cloth or an adhesive adhered to both or one side thereof. Further, the cleaning members 91U and 91L may be impregnated or coated with a lubricating liquid such as oil or a cleaning liquid.

[Description of the operation of the roll leveler]
Next, a method for straightening the workpiece 101 using the roll leveler 1 will be described.

First, the work 101 is sequentially inserted between the upper pinch roll 32 and the lower pinch roll 33 and between the row of the upper work rolls 12 and the row of the lower work rolls 13 .
Next, the upper pinch roll 32 is brought closer to the lower pinch roll 33 by operating the actuator 59 to sandwich the work 101 between the upper pinch roll 32 and the lower pinch roll 33 . Note that the upper pinch roll 32 may be brought closer to the lower pinch roll 33 by rotating the bolt instead of the actuator 59 .
Next, by rotating the screw down bolt 58 , the upper work roll 12 is lowered to sandwich the work 101 between the row of the upper work rolls 12 and the row of the lower work rolls 13 . Thus, the setting of the work 101 is completed.
After that, the motor 81 is controlled by the controller 82 so that the upper pinch roll 32 , the lower pinch roll 33 , the upper work roll 12 and the lower work roll 13 are intermittently or continuously rotated by the motor 81 . Therefore, the work 101 is intermittently or continuously transported from the pinch roll pair 31 toward the work roll group 11 . The direction in which the work 101 is conveyed is the rearward direction, and the direction in which the work 101 is conveyed is parallel to the row direction of the lower work rolls 13 . One of the upper pinch roll 32 and the lower pinch roll 33 may be rotationally driven by the motor 81, and the other may rotate along with the other. Alternatively, one of the upper work roll 12 and the lower work roll 13 may be rotated by the motor 81, and the other may be rotated along with the other.

The work 101 is straightened by the upper work roll 12 and the lower work roll 13 as the work 101 passes downstream between the row of the upper work rolls 12 and the row of the lower work rolls 13 . The work 101 unloaded from the work roll group 11 is then transported to another process such as a press machine.

[Description of cleaning method]
Next, a method for cleaning the roll leveler 1 will be described with reference to FIGS. 1 and 2. FIG. In the following description, the front reel 71F and the front motor 73F are used to pay out the cleaning member 91U, and the front reel 71F and the front motor 73F are a delivery portion that delivers the cleaning member 91U. The rear reel 71R and the rear motor 73R are used for winding the cleaning member 91U, and the rear reel 71R and the rear motor 73R are a winding unit that winds the cleaning member 91U.
The front reel 74F and the front motor 76F are used to feed out the cleaning member 91L, and the front reel 74F and the front motor 76F are a feeding portion that feeds out the cleaning member 91L. The rear reel 74R and the rear motor 76R are used for winding the cleaning member 91L, and the rear reel 74R and the rear motor 76R are a winding unit that winds up the cleaning member 91L.

First, the front reels 71F and 74F around which the cleaning members 91U and 91L are respectively wound are attached to the support portions 72F and 75F, respectively. Next, as shown in FIG. 2, the first upper opening/closing device 22U is operated to separate the first upper pad 21U from the upper surface of the upper work roll 12. Next, as shown in FIG. Similarly, the second upper opening/closing device 42U is operated to separate the second upper pad 41U from the upper pinch roll 32. As shown in FIG. Next, the cleaning member 91U is pulled out from the front reel 71F and inserted between the second upper pad 41U and the upper pinch roll 32 . Subsequently, it is inserted between the first upper pad 21U and the upper work roll 12 . Finally, the cleaning member 91U is wound around the rear reel 71R.

Next, as shown in FIG. 1, the second upper opening/closing device 42U is operated to move the second upper pad 41U downward, and the cleaning member 91U is sandwiched between the second upper pad 41U and the upper pinch roll 32. . Similarly, the first upper opening/closing device 22U is operated to move the first upper pad 21U downward, and the cleaning member 91U is sandwiched between the first upper pad 21U and the upper work roll 12. As shown in FIG.

Similarly, the cleaning member 91L is inserted between the second lower pad 41L and the lower pinch roll 33 and between the first lower pad 21L and the lower work roll 13 in order from the front reel 74F, and the cleaning member 91L is inserted into the rear reel 74R. roll around. Then, the cleaning member 91L is sandwiched between the second lower pad 41L and the lower pinch roll 33, and the cleaning member 91L is sandwiched between the first lower pad 21L and the lower work roll 13.

Next, while the front reels 71F, 74F are stopped, the rear reels 71R, 74R are rotated manually or by the rear motors 73R, 76R. As a result, the cleaning members 91U and 91L are wound around the rear reels 71R and 74R, and slack in the cleaning members 91U and 91L is removed. Thus, the setting of the cleaning members 91U and 91L is completed.

Next, the workpiece 101 is set in the same manner as described above. The order of setting the cleaning members 91U and 91L and setting the workpiece 101 may be changed.

Next, the motor 81 is actuated to rotate the lower pinch roll 33 and the plurality of lower work rolls 13 coupled with the motor 81 clockwise from the viewpoint of FIG. Similarly, the upper pinch roll 32 and the plurality of upper work rolls 12 connected to the motor 81 are rotated counterclockwise. Therefore, the work 101 is conveyed from the front to the rear of the roll leveler 1 and straightened by the upper work roll 12 and the lower work roll 13 .

During correction of the work 101, the cleaning members 91U and 91L are wound around the rear reels 71R and 74R by operating the rear motors 73R and 76R to rotate the rear reels 71R and 74R. The cleaning members 91U and 91L are drawn from the front reels 71F and 74F by being pulled by the rear reels 71R and 74R. While the rear reels 71R and 74R are rotating, the front motors 73F and 76F are operated to apply braking force from the front motors 73F and 76F to the front reels 71F and 74F to brake the front reels 71F and 74F. As a result, the cleaning members 91U and 91L wound around the rear reels 71R and 74R are maintained in a stretched state without bending.

By interlocking the front motors 73F, 76F and the rear motors 73R, 76R as described above, the cleaning members 91U, 91L are conveyed from the front reels 71F, 74F to the rear reels 71R, 74R.

The cleaning member 91U passes forward between the upper work roll 12 and the first upper pad 21U while being sandwiched between them. As a result, the peripheral surface of the upper work roll 12 is wiped by the cleaning member 91U, and the foreign matter adhering to the peripheral surface of the upper work roll 12 is wiped off by the cleaning member 91U. Similarly, the peripheral surface of the upper pinch roll 32 is wiped by the cleaning member 91U, and the peripheral surfaces of the lower work roll 13 and the lower pinch roll 33 are wiped by the cleaning member 91L.

Here, since the direction of rotation of the upper pinch roll 32 and the upper work roll 12 is opposite to the direction of conveyance of the cleaning member 91U, the cleaning member 91U slides on the upper pinch roll 32 and the upper work roll 12 . Therefore, the upper pinch roll 32 and the upper work roll 12 are efficiently wiped by the cleaning member 91U. Similarly, since the direction of rotation of the lower pinch roll 33 and the lower work roll 13 is opposite to the direction of conveyance of the cleaning member 91L, the lower pinch roll 33 and the lower work roll 13 are efficiently wiped by the cleaning member 91L. be killed.

Further, when the work 101 is transported intermittently, the cleaning members 91U and 91L are transported without stopping even when the work 101 is temporarily stopped. Therefore, the pinch rolls 32 and 33 and the work rolls 12 and 13 are efficiently wiped by the sliding of the cleaning members 91U and 91L.

The periodic operation of the first upper opening/closing device 22U periodically separates the first upper pad 21U from the upper work roll 12, and the second upper opening/closing device 42U operates in synchronization with the movement of the first upper pad 21U. The second upper pad 41U may be spaced apart from the upper pinch roll 32 periodically. As a result, even if the cleaning member 91U is partially flexed due to the sliding of the cleaning member 91U, the cleaning member 91U returns to a uniformly stretched state. Similarly, the first lower pad 21L may be periodically separated from the lower work roll 13, and the second lower pad 41L may be periodically separated from the lower pinch roll 33 in synchronization therewith.

In addition, the periodic operation of the first upper opening/closing device 22U periodically reduces the load of the first upper pad 21U pressed against the upper work roll 12, and the second upper opening/closing device 42U operates in synchronization therewith. By doing so, the load with which the second upper pad 41U is pressed against the upper pinch roll 32 may periodically decrease. The second upper pad 41U may be spaced apart from the upper pinch roll 32 periodically. As a result, even if the cleaning member 91U is partially flexed due to the sliding of the cleaning member 91U, the cleaning member 91U returns to a uniformly stretched state. The load with which the first lower pad 21L is pressed against the lower work roll 13 may be periodically reduced, and the load with which the second lower pad 41L is pressed against the lower pinch roll 33 may be periodically reduced.

[Beneficial effect]
In the roll leveler 1 described above, the first upper pad 21U is arranged on the side opposite to the lower work roll 13 with respect to the upper work roll 12 and pressed against the upper work roll 12 from above. Therefore, even when the work 101 is straightened by the upper work roll 12 and the lower work roll 13, the cleaning member 91U can be sandwiched between the first upper pad 21U and the upper work roll 12, and the cleaning member 91U can The upper work roll 12 can be cleaned. That is, the correction work of the work 101 and the cleaning work of the upper work roll 12 can be performed at the same time. Similarly, the upper pinch roll 32, the lower work roll 13 and the lower pinch roll 33 can be cleaned during the straightening operation of the work 101. FIG.

Also, the cleaning member 91U is drawn out from the front reel 71F and wound around the rear reel 71R. With such a configuration, clean cleaning members 91U are always supplied to the upper work roll 12 and the upper pinch roll 32, and the cleaning efficiency of the upper work roll 12 and the upper pinch roll 32 is high. The same applies to the cleaning member 91L.

<<Modification>>
In the above, the form for implementing this invention was demonstrated. The above embodiments are intended to facilitate understanding of the present invention, and are not intended to limit and interpret the present invention. Moreover, the embodiments of the present invention can be changed and improved without departing from the spirit of the present invention, and the present invention also includes equivalents thereof. Changes from the above embodiment will be described below. The modifications described below may be applied in combination.

(1) Modification 1
The conveying direction of the cleaning member 91U may be reversed.
In this case, the rear reel 71R and the rear motor 73R are used to feed the cleaning member 91U, and the rear reel 71R and the rear motor 73R are a feeding portion for feeding the cleaning member 91U. Further, the front reel 71F and the front motor 73F are used for winding the cleaning member 91U, and the front reel 71F and the front motor 73F are a winding section for winding the cleaning member 91U.

In this case, the conveying speed of the cleaning member 91U by the interlocking of the front motor 73F and the rear motor 73R is lower or higher than the conveying speed of the work 101 by the pinch rolls 32 and 33 . If the transport speed of the cleaning member 91U is different from the transport speed of the work 101, the cleaning member 91U slides on the upper pinch roll 32 and the upper work roll 12, so that the upper pinch roll 32 and the upper work roll 12 are efficiently moved by the cleaning member 91U. wiped clean.
The transport speed of the cleaning member 91U may be equal to the transport speed of the work 101. FIG.

(2) Modification 2
The conveying direction of the cleaning member 91L may be reversed.
In this case, the rear reel 74R and the rear motor 76R are used to feed out the cleaning member 91L, and the rear reel 74R and the rear motor 76R are a delivery unit that delivers the cleaning member 91L. The front reel 74F and the front motor 76F are used for winding the cleaning member 91L, and the front reel 74F and the front motor 76F are a winding unit for winding the cleaning member 91L.

In this case, the conveying speed of the cleaning member 91L by interlocking of the front motor 76F and the rear motor 76R is lower or higher than the conveying speed of the work 101 by the pinch rolls 32 and 33 . If the conveying speed of the cleaning member 91L differs from the conveying speed of the workpiece 101, the cleaning member 91L slides on the lower pinch roll 33 and the lower work roll 13, so that the lower pinch roll 33 and the lower work roll 13 are efficiently moved by the cleaning member 91L. wiped clean.
Incidentally, the conveying speed of the cleaning member 91L may be equal to the conveying speed of the workpiece 101. FIG.

(3) Modification 3
In the above embodiment, the straightening work of the work 101 and the cleaning work of the work rolls 12, 13 and the pinch rolls 32, 33 are performed at the same time. It may be done.

In this case, the rear reel 71R and the rear motor 73R are used for winding the cleaning member 91U, the front reel 71F and the front motor 73F are used for feeding the cleaning member 91U, and the rear reel 74R and the rear motor 76R are used for winding the cleaning member 91L. Alternatively, the front reel 74F and the front motor 76F may be used to feed the cleaning member 91L. That is, when the cleaning members 91U and 91L are wound around the rear reels 71R and 74R by operating the rear motors 73R and 76R to rotate the rear reels 71R and 74R, the front motors 73F and 76F are operated to rotate the rear reels 71R and 74R. The front reels 71F and 74F are braked by 76F. The upper work roll 12, the upper pinch roll 32, the lower work roll 13 and the lower pinch roll 33 are wiped by the transportation of the cleaning members 91U and 91L.

Of course, the cleaning members 91U and 91L may be wound around the front reels 71F and 74F as in the above-described embodiment without correcting the work 101. FIG.

Since the cleaning member 91U is sandwiched between the upper work roll 12 and the first upper pad 21U above it, even if the work 101 is sandwiched between the upper work roll 12 and the lower work roll 13, the work 101 The cleaning of the upper work roll 12 can be performed without replacing with a cleaning member. Similarly, the upper pinch roll 32, the lower work roll 13 and the lower pinch roll 33 can be cleaned.

(4) Modification 4
In the above embodiment, the cleaning members 91U and 91L are conveyed to clean the pinch rolls 32 and 33 and the work rolls 12 and 13. The rolls 12, 13 may be cleaned. Specifically, the cleaning member 91U is sandwiched between the first upper pad 21U and the upper work roll 12 and between the second upper pad 41U and the upper pinch roll 32, and the cleaning member 91L is sandwiched between the first lower pad 21L and the lower work roll. The pinch rolls 32 and 33 and the work rolls 12 and 13 are driven by the motor 81 in this state. Then, the peripheral surfaces of the pinch rolls 32, 33 and the work rolls 12, 13 are wiped by the cleaning members 91U, 91L, so that the peripheral surfaces of the pinch rolls 32, 33 and the work rolls 12, 13 are cleaned. At this time, the motors 73F, 73R, 76F and 76R apply braking force to the reels 71F, 71R, 74F and 74R to prevent the cleaning members 91U and 91L from being pulled out. Further, the direction of rotation of the pinch rolls 32, 33 and the work rolls 12, 13 may be in the forward direction or the reverse direction, and the forward rotation and the reverse direction of the pinch rolls 32, 33 and the work rolls 12, 13 may be alternately rotated. may be repeated to Forward rotation is rotation in the direction that conveys the work 101 from front (upstream) to back (downstream), and reverse rotation is rotation in the direction that conveys the work 101 from back to front. When the pinch rolls 32, 33 and the work rolls 12, 13 are rotated in the forward direction, the work 101 may be straightened at the same time as the pinch rolls 32, 33 and the work rolls 12, 13 are cleaned.

When the cleaning members 91U and 91L are worn or damaged by cleaning, or when the stop time of the cleaning members 91U and 91L reaches a predetermined time, the cleaning members 91U and 91L are conveyed by a predetermined distance. Then, the pinch rolls 32, 33 and the work rolls 12, 13 can be cleaned with new portions of the cleaning members 91U, 91L.

In the fourth modification, even if the workpiece 101 is sandwiched between the upper work roll 12 and the lower work roll 13, the upper work roll 12, the upper pinch roll 32, and the lower work roll 12, the upper pinch roll 32, and the lower Work roll 13 and lower pinch roll 33 can be cleaned.

(5) Modification 5
The forward direction is the direction in which the cleaning members 91U and 91L are conveyed from the rear reels 71R and 74R to the front reels 71F and 74F, and the reverse direction is the direction in which the cleaning members 91U and 91L are conveyed from the front reels 71F and 74F to the rear reels 71R and 74R. and In such a case, as shown in FIG. 3, during the correcting operation of the work 101 as in the above-described embodiment or Modifications 1 and 2, or when the work 101 is not being corrected as in Modification 3, Conveyance of the cleaning members 91U and 91L in the forward direction and conveyance in the reverse direction may be alternately repeated in short cycles.

During transport in the forward direction, the cleaning members 91U and 91L are wound around the front reels 71F and 74F by rotating the front reels 71F and 74F by the front motors 73F and 76F. Also, the rear motors 73R, 76R brake the rear wheels 71R, 74R.

When conveying in the reverse direction, the cleaning members 91U and 91L are wound around the rear reels 71R and 74R by rotating the rear reels 71R and 74R by the rear motors 73R and 76R. Also, the front motors 73F, 76F brake the front reels 71F, 74F.

When the cleaning members 91U and 91L are wound around the rear reels 71R and 74R before cleaning, the front motors 73F and 76F rotate the front reels 71F and 74F to rotate the cleaning members 91U and 91L in the positive direction each time. The conveyed distance (that is, the winding length of the cleaning members 91U and 91L per time of the front motors 73F and 76F) is adjusted by rotating the rear reels 71R and 74R by the rear motors 73R and 76R. It is longer than the distance conveyed in the opposite direction per time (that is, the winding length of the cleaning members 91U and 91L per time of the rear motors 73R and 76R). Therefore, the cleaning members 91U and 91L are gradually wound onto the front reels 71F and 74F.

On the other hand, when the cleaning members 91U and 91L are wound around the front reels 71F and 74F before cleaning, the rear motors 73R and 76R rotate the rear reels 71R and 74R to rotate the cleaning members 91U and 91L in the opposite direction each time. (that is, the winding length of the cleaning members 91U and 91L per one rotation of the rear motors 73R and 76R) is changed by rotating the front reels 71F and 74F by the front motors 73F and 76F. 91L is longer than the distance that the cleaning member 91L is transported in the forward direction per time (that is, the winding length of the cleaning members 91U and 91L per time of the front motors 73F and 76F). Therefore, the cleaning members 91U and 91L are gradually wound around the rear reels 71R and 74R.

Also in the fifth modification, the upper work roll 12, the upper pinch roll 32, the lower work roll 13 and the lower pinch roll are cleaned without replacing the work 101 sandwiched between the upper work roll 12 and the lower work roll 13 with cleaning members. Roll 33 can be cleaned.

In addition, since the cleaning members 91U and 91L are conveyed in small increments, foreign matter adhering to the peripheral surfaces of the upper work roll 12, upper pinch roll 32, lower work roll 13 and lower pinch roll 33 can be efficiently wiped off.

(6) Modification 6
The roll leveler 1a will be described with reference to FIG. Here, the same reference numerals are assigned to the components corresponding to each other between the roll leveler 1 and the roll leveler 1a, and the differences between the roll leveler 1 and the roll leveler 1a will be mainly described. Since the roll leveler 1 and the roll leveler 1a are provided in the same manner except for the differences described below, the description of the common features of the roll leveler 1 and the roll leveler 1a will be omitted.

The roll leveler 1a is provided with a pressing body 111 instead of the first lower pad 21L and the second lower pad 41L, and an opening/closing device 115 instead of the first lower opening/closing device 22L and the second lower opening/closing device 42L. .

A pressing body 111 is provided so as to be able to come into contact with and separate from the lower surfaces of the plurality of lower work rolls 13 and the lower pinch rolls 33 across the interior of the lower roll frame 62 and the interior of the lower pinch roll frame 64 . The pressing body 111 includes a body 112 , multiple rolls 113 and a shaft portion 114 . A body 112 is provided from below the lower pinch roll 33 to below the lower work roll 13 in the front-rear direction and the left-right direction. A plurality of rolls 113 are rotatably attached to the upper surface of the body 112 at intervals in the front-rear direction. Body 112 is rotatably mounted to a frame (lower pinch roll frame 64 in this embodiment) by shaft 114 . An opening/closing device 115 is attached to the upper surface of the base portion 51 . The opening/closing device 115 is composed of a cylinder portion and a movable portion, and is attached so that the cylinder portion is downward and the movable portion is upward. The upper end of the movable portion of the opening/closing device 115 is attached to the rear side and the lower side of the body 112 . When the movable portion of the opening/closing device 115 moves up and down, the body 112 rotates around the shaft portion 114 and the pressing body 111 separates from or comes into contact with the lower pinch roll 33 and the lower work roll 13 .

[Description of cleaning method]
Next, a method for cleaning the roll leveler 1a will be described with reference to FIGS. 4 and 5. FIG. The method for cleaning the roll leveler 1a is the same as in the above-described embodiment, modified example 1, modified example 2, modified example 3, modified example 4, or modified example 5. That is, when cleaning the roll leveler 1a, the straightening work of the work 101 and the cleaning work of the work rolls 12, 13 and the pinch rolls 32, 33 may be performed at the same time as in the above embodiment or modified examples 1 and 2. The work rolls 12, 13 and the pinch rolls 32, 33 may be cleaned independently as in the third modification, or the pinch rolls 32, 32, 32, 33 may be cleaned with the cleaning members 91U, 91L stopped as in the fourth modification. 33 and the work rolls 12 and 13 may be cleaned, or forward and reverse conveyance of the cleaning members 91U and 91L may be alternately repeated at short intervals as in the fifth modification. However, the roll leveler 1a differs in the setting method of the cleaning member 91L. A method for setting the cleaning member 91L will be described below.

First, the front reel 74F around which the cleaning member 91L is wound is attached to the support portion 75F. Next, as shown in FIG. 5, the opening/closing device 115 is operated to separate the pressing member 111 from the lower surfaces of the lower work roll 13 and the lower pinch roll 33 . Next, the cleaning member 91L is pulled out from the front reel 74F, and the cleaning member 91L is inserted between the pressing body 111 and the lower pinch roll 33. As shown in FIG. Subsequently, it is inserted between the pressing body 111 and the lower work roll 13 . Finally, the cleaning member 91L is wound around the rear reel 74R.

Next, by operating the opening/closing device 115 to move the movable portion of the opening/closing device 115 upward, the pressing body 111 is rotated upward about the shaft portion 114 , and the cleaning member 91 L moves between the pressing body 111 and the lower work roll 13 . and between the pressing body 111 and the lower pinch roll 33.

(7) Modification 7
In the above embodiment, pinch rolls 32 and 33 and pads 41U and 41L are provided in front of the row of work rolls 12 and 13 . Alternatively, the pinch rolls 32, 33 and pads 41U, 41L may be provided behind the rows of work rolls 12,13. In this case, the cleaning member 91U sequentially passes between the second upper pad 41U and the upper pinch roll 32 and between the first upper pad 21U and the upper work roll 12 from the rear reel 71R, and is guided to the front reel 71F. It is Similarly, the cleaning member 91L is guided from the rear reel 74R through between the second lower pad 41L and the lower pinch roll 33 and between the first lower pad 21L and the lower work roll 13 to the front reel 74F. there is

(8) Modification 8
In the above embodiment, the conveying device for conveying the workpiece 101 is incorporated in the roll levelers 1, 1a, but the conveying device may be provided independently from the roll levelers 1, 1a.

Reference Signs List 1, 1a Roll leveler 12 Upper work roll 13 Lower work roll 21U, 21L, 41U, 41L Pad 32 Upper pinch roll 33 Lower pinch roll 71F, 71R, 74F, 74R Reel 73F, 73R, 76F, 76R ... Motor 81 ... Motor 91U, 91L ... Cleaning member

Claims (16)

a plurality of first work rolls arranged parallel to each other;
a plurality of second work rolls parallel to the first work rolls, arranged along a row of the first work rolls, and offset in the row direction from each of the first work rolls; A method of cleaning a roll leveler comprising:
A band-shaped cleaning member is sandwiched between the pressing portion that is pressed against the first work roll on the opposite side of the row of the second work rolls with respect to the row of the first work rolls and the row of the first work rolls. wiping the first work roll with the cleaning member by feeding the cleaning member in the row direction of the first work roll or by rotating the first work roll in the state of
How to clean the roll leveler. A second cleaning band between a second pressing portion pressed against the second work roll on the opposite side of the row of the first work rolls with respect to the row of the second work rolls and the row of the second work rolls Wiping the second work roll with the second cleaning member by feeding the second cleaning member in the row direction of the second work roll or rotating the second work roll in a state where the member is sandwiched;
The method for cleaning a roll leveler according to claim 1. Of the pinch roll pairs arranged on the front or rear side of the row of the first work roll and the second work roll, the first pinch roll is pressed against the first pinch roll on the opposite side of the second pinch roll with respect to the first pinch roll. 3. With the cleaning member sandwiched between the pressing portion and the first pinch roll, the first pinch roll is moved by the cleaning member by feeding the cleaning member or by rotating the first pinch roll. wipe with
The method for cleaning a roll leveler according to claim 1 or 2. Of the pinch roll pairs arranged on the front or rear side of the row of the first work roll and the second work roll, the first pinch roll is pressed against the first pinch roll on the opposite side of the second pinch roll with respect to the first pinch roll. 3. With the cleaning member sandwiched between the pressing portion and the first pinch roll, the first pinch roll is moved by the cleaning member by feeding the cleaning member or by rotating the first pinch roll. wipe with
In a state in which the second cleaning member is sandwiched between the second pinch roll and a fourth pressing portion that is pressed against the second pinch roll on the opposite side of the first pinch roll with respect to the second pinch roll, wiping the second pinch roll with the second cleaning member by feeding the second cleaning member or by rotating the second pinch roll;
The method for cleaning a roll leveler according to claim 2. Wiping cleaning of the first work roll is performed by the cleaning member while correcting the work by conveying the strip-shaped work through between the row of the first work rolls and the row of the second work rolls. conduct,
The method for cleaning a roll leveler according to any one of claims 1 to 4. Forward feeding and reverse feeding of the cleaning member are alternately repeated, and the feeding distance of the forward feeding cleaning member is made larger than the feeding distance of the reverse feeding cleaning member.
The method for cleaning a roll leveler according to any one of claims 1 to 5. a plurality of first work rolls arranged parallel to each other;
a plurality of second work rolls parallel to the first work rolls, arranged along a row of the first work rolls and offset in the row direction from each of the first work rolls;
a pressing portion pressed against the first work roll on the opposite side of the row of the second work rolls with respect to the row of the first work rolls;
a feeding unit around which a strip-shaped cleaning member is wound and which feeds out the cleaning member;
a winding section that winds up the cleaning member fed from the feeding section;
with
The cleaning member is passed from the feeding portion between the pressing portion and the first work roll, is guided to the winding portion, and is sandwiched between the pressing portion and the first work roll. state, the first work roll is wiped by the cleaning member by the winding unit winding the cleaning member or by rotating the first work roll.
roll leveler. a second pressing portion pressed against the second work roll on the opposite side of the row of the first work rolls with respect to the row of the second work rolls;
a second feeding portion around which a strip-shaped second cleaning member is wound and which feeds out the second cleaning member;
a second winding section that winds up the second cleaning member fed from the second feeding section;
further comprising
The second cleaning member is passed from the second feeding portion between the second pressing portion and the first work roll and guided to the second winding portion. 1 work roll, the second winding unit winds up the second cleaning member, or the second work roll rotates to rotate the second work roll to the second cleaning member. wiped by a cleaning member,
The roll leveler according to claim 7. a pair of pinch rolls positioned in front or behind the row of the first work roll and the second work roll;
a third pressing portion pressed against the first pinch roll on the opposite side of the second pinch roll with respect to the first pinch roll of the pair of pinch rolls;
further comprising
The cleaning member is further passed between the third pressing portion and the first pinch roll, and the winding portion is sandwiched between the third pressing portion and the first pinch roll. the first pinch roll is wiped by the cleaning member by winding the cleaning member or by rotating the first pinch roll;
The roll leveler according to claim 7 or 8. a pair of pinch rolls positioned in front or behind the row of the first work roll and the second work roll;
a third pressing portion pressed against the first pinch roll on the opposite side of the second pinch roll with respect to the first pinch roll of the pair of pinch rolls;
A fourth pressing portion pressed against the second pinch roll on the opposite side of the first pinch roll with respect to the second pinch roll;
further comprising
The cleaning member is further passed between the third pressing portion and the first pinch roll, and the winding portion is sandwiched between the third pressing portion and the first pinch roll. the first pinch roll is wiped by the cleaning member by winding the cleaning member or rotating the first pinch roll;
In a state in which the second cleaning member is further passed between the fourth pressing portion and the second pinch roll and sandwiched between the fourth pressing portion and the second pinch roll, the second cleaning member is The second pinch roll is wiped by the second cleaning member as the second winding unit winds up the second cleaning member or as the second pinch roll rotates.
The roll leveler according to claim 8. further comprising a drive unit for driving the first work roll or the second work roll or both;
When the driving unit drives the first work roll, the second work roll, or both while the strip-shaped work is sandwiched between the row of the first work roll and the row of the second work roll the winding unit winds up the cleaning member;
A roll leveler according to any one of claims 7 to 10. The winding section alternately and repeatedly winds and feeds the cleaning member, and the feeding section feeds out the cleaning member in synchronization with the winding by the winding section and also in synchronization with the feeding of the winding section. winding the cleaning member, wherein the winding length of the cleaning member per turn of the winding portion is greater than the winding length of the cleaning member per turn of the delivery portion;
A roll leveler according to any one of claims 7 to 11. A cleaning method for a conveying device provided with a first conveying roll and a second conveying roll that are parallel to each other for conveying the work by sandwiching and rotating the work, the method comprising:
The cleaning member is sandwiched between the first pressing portion pressed against the first transport roll on the opposite side of the first transport roll to the second transport roll and the first transport roll. Wiping the first transport roll with the cleaning member by feeding or rotating the first transport roll;
A method for cleaning the conveying device. In a state in which a second cleaning member is sandwiched between the second conveying roll and a second pressing portion that is pressed against the second conveying roll on the opposite side of the first conveying roll with respect to the second conveying roll, Wiping the second transport roll with the cleaning member by feeding the second cleaning member or rotating the second transport roll;
The method for cleaning a conveying device according to claim 13. a first transport roll and a second transport roll that are parallel to each other and transport the work by sandwiching the work and rotating;
a pressing portion that is pressed against the first transport roll on the opposite side of the row of the second transport rolls with respect to the first transport roll;
a feeding unit around which a strip-shaped cleaning member is wound and which feeds out the cleaning member;
a winding section that winds up the cleaning member fed from the feeding section;
with
The cleaning member is passed from the feeding portion between the pressing portion and the first transport roll, is guided to the winding portion, and is sandwiched between the pressing portion and the first transport roll. state, the first transport roll is wiped by the cleaning member by the winding unit winding the cleaning member or by rotating the first transport roll.
Conveyor. a second pressing portion pressed against the second transport roll on the opposite side of the row of the first transport rolls with respect to the row of the second transport rolls;
a second feeding portion around which a strip-shaped second cleaning member is wound and which feeds out the second cleaning member;
a second winding section that winds up the second cleaning member fed from the second feeding section;
further comprising
The second cleaning member is passed from the second delivery portion between the second pressing portion and the second conveying roll and is guided to the second winding portion. When the second cleaning member is sandwiched between the second transport roll and the second transport roll, the second cleaning member is wound by the second winding unit, or the second transport roll rotates, thereby causing the second transport roll to move to the second cleaning member. wiped by a cleaning member,
16. A transport device according to claim 15.

Images