JP3183223U - Single-side corrugated sheet guide device - Google Patents

Abstract

A guide device for a single-sided cardboard sheet capable of accurately adjusting the position in the width direction of the sheet while satisfactorily braking without damaging or collapsing the single-sided cardboard sheet.
A brake roll 4 for winding a single-sided cardboard sheet around the outer periphery on the back liner side and feeding it downstream, and a first roll 5 around which the single-sided cardboard sheet is wound around the outer peripheral surface at a position upstream of the brake roll 4. Each of the holding portions 3 that are rotatably held cancels the amount of deviation between the center of the machine and the center line of the single-sided cardboard sheet obtained based on the detection result of the travel position of the single-sided cardboard sheet on the brake roll 4 by the detection unit. The guide device is moved in the horizontal direction perpendicular to the traveling direction of the single-sided cardboard sheet by the drive device controlled by the control unit, and the first roll is rotatable up and down around the central portion of the axis. A first roll driving unit 5M that is pivotally supported by the holding unit 3 and rotates the first roll to an arbitrary inclined state by drive control 3M by the control unit is provided.
[Selection] Figure 1

Description

  The present invention relates to a guide device for adjusting a position in a width direction in a conveying process of a single-sided cardboard sheet to a bonding portion with a liner.

  Corrugated cardboard is continuously manufactured by a corrugated cardboard manufacturing machine generally called a corrugator or a corrugating machine. First, in a single facer, a core sheet formed by corrugating the base paper fed out from the base paper roll is bonded to the back liner fed out from another base paper roll to continuously form a strip-like single-sided cardboard sheet, The single-sided cardboard sheet is passed through a pre-heater roll and a tension applying unit, and is then glued to the top of the stage with a gluing device, and a front liner is bonded to obtain a cardboard sheet. On the downstream side, the corrugated board sheet becomes a corrugated board of a desired size by processing such as trimming and cutting.

  However, when a front liner is bonded to a single-sided corrugated cardboard sheet, if there is a deviation in the width direction in the overlapping of the two, a defective portion having a waveform exposed on both sides of the cardboard after the bonding occurs. The larger the is, the larger the defective area that cannot be used as a product.

  In order to suppress the occurrence of such defective parts that are wasted, the center of both sides of the running line coincides with the preset center line (machine center) so that the single-sided corrugated cardboard sheet and the front liner can be overlapped without deviation. It is necessary to let In particular, since single-sided cardboard is conveyed from the bonding process with the back liner in a single facer, it is desirable to adjust the position so that the center in the width direction of the single-sided cardboard sheet always overlaps the central axis in the conveyance direction. .

  In the conventional corrugating machine, a brake stand is placed in the travel path of the single-sided cardboard sheet from the single facer to the gluing device, and braking is applied from the back liner side by the suction action of the suction box so that appropriate tension is applied to the single-sided cardboard sheet. (For example, refer to Patent Document 1). Some brake stands are provided with a width direction position adjusting means for a single-sided cardboard sheet by a pair of guide plates that are in contact with both end edges of the single-sided cardboard sheet.

  Generally, in the same corrugating machine, two types of single-sided corrugated cardboard sheets having different heights and intervals between the cores are formed at the same time, and selectively bonded to the front liner so that the A level and the B level 2 In many cases, various types of cardboard sheets can be manufactured. In this case, the brake stand has a two-layer structure in which a single-sided corrugated cardboard sheet travels in each layer and can be individually braked by a suction box.

  For example, as shown in FIG. 3, the traveling direction of the single-sided cardboard sheet (DA, DB) on the brake stand B disposed between the single facer and the preheating part P by the preheater roll located upstream from the gluing device. A pair of guide plates G that are movable in a direction orthogonal to the width direction (width direction of the single-sided cardboard sheet) are arranged. Further, the brake stand B detects the position of a driving device that moves the pair of guide plates G in a direction orthogonal to the traveling direction and a single-sided cardboard sheet (DA, DB) that passes between the pair of guide plates G. The control unit is provided with a pair of guide plates G for a distance that eliminates the amount of deviation, and the control unit obtains a deviation from a predetermined center line on the apparatus side based on a detection result from the detection unit. The driving device is driven and controlled so as to move in the width direction.

  Accordingly, when the single-sided cardboard sheet (DA, DB) passes between the pair of guide plates G, the running position of the single-sided cardboard sheet (DA, DB) is always determined in advance so that the center of the cardboard sheet is centered on the apparatus side. Adjusted to match the axis. By this position adjustment, a state in which the sheet is laminated with no deviation in the width direction when the subsequent single-sided cardboard sheet (DA, DB) and the front liner are bonded together is obtained.

  Another position adjustment method is a non-crash roll. In this method, the non-crash roll is placed on a central portion on a single-sided corrugated cardboard sheet that is running, and its axial direction is twisted to steer it.

JP 2004-114538 A

  However, when the position of the single-sided cardboard sheet is adjusted by moving the pair of guide plates in the width direction, the both ends of the single-sided cardboard sheet that slides against the contact surface of the guide plate are worn or damaged due to friction, or the ear is bent. There was a problem that occurred. Further, in the position adjustment while braking by the suction box, there is a possibility that the back liner of the single-sided cardboard sheet may be worn or damaged due to friction. In addition, braking by the suction method has poor linearity with respect to the brake amount, and a more accurate braking method is desired.

  Further, in the position adjustment method using the non-crash roll, the single-sided corrugated cardboard sheet is pressed from the upper surface and twisted, and therefore, there is a risk that the corrugation of the corrugated cardboard product may be partially degraded.

  In view of the above problems, the present invention provides a guide device for a single-sided cardboard sheet that can accurately adjust the position in the width direction of the sheet while braking excellently without damaging or collapsing the single-sided cardboard sheet. With the goal.

To achieve the above object, the present invention provides a corrugated board manufacturing machine on a single-sided corrugated sheet traveling path from a bonding process section between a back liner and a corrugated core sheet to a bonding process section with a front liner. An installed guide device,
A brake roll that wraps around the outer circumference of the single-sided corrugated cardboard sheet traveling from the upstream side over a half circumference on the back liner side and sends it to the downstream side,
A first roll on which the single-sided cardboard sheet is wound around the outer circumferential surface over a half circumference at an opposing position upstream from the brake roll;
A holding portion for holding the first roll and the brake roll so as to be rotatable and integrally movable in a horizontal direction perpendicular to the traveling direction of the single-sided cardboard,
A driving device for moving the holding unit;
A detection unit for detecting the traveling position of the single-sided cardboard sheet on the brake roll;
Based on the detection result from the detection unit, the amount of deviation of the center line of the single-sided cardboard sheet with respect to a predetermined machine center line is obtained, and the drive unit is moved so as to move the distance by a distance that cancels the deviation amount. A control unit for controlling,
The brake roll is provided with a surface mechanism that holds a single-sided cardboard sheet by generating a frictional force with the single-sided cardboard sheet,
The first roll is pivotally supported by the holding part so as to be rotatable in the vertical direction around the central part of the axis of the first roll, and the first roll is rotated by drive control by the control part. The first roll drive unit is in an arbitrary inclined state.

  In the guide device for a single-sided cardboard sheet according to the present invention, the brake roll is moved in a direction perpendicular to the traveling direction of the single-sided cardboard sheet while braking the surface liner of the traveling single-sided cardboard sheet by surface friction of the brake roll. By doing so, the position in the width direction of the single-sided cardboard sheet is adjusted.

  The brake roll is pivotally supported by the holding portion together with the first roll at the upstream facing position, and the holding portion is moved in a direction orthogonal to the seat traveling direction by a driving device that is driven and controlled by the control portion. The brake roll and the first roll move together in the width direction with the single-sided corrugated cardboard sheet to adjust the position.

  Further, the movement amount for the position adjustment is determined in advance by the control unit based on the detection result from the detection unit, for example, the travel position based on the imaging data of the single-sided cardboard sheet on the brake roll obtained from the imaging unit such as a camera. The amount of deviation from the machine center is obtained, and the drive unit is driven and controlled so that the holding portion is moved in the direction of offset of deviation using the amount of deviation as a movement amount.

  Accordingly, the single-sided corrugated cardboard sheet is adjusted in the width direction by moving for each holding part of the brake roll while traveling on the brake roll. Corrugation does not occur and quality as a corrugated cardboard product is not deteriorated.

  In addition, in the present invention, the first roll around which the upstream single-sided cardboard sheet is wound at a position facing the brake roll also moves in the same width direction as the first roll, and the first roll Since it can be rotated in the vertical direction around the central part of the shaft center, after the holding part moves to one side in the left-right width direction for position adjustment, the moving side end part moves the first roll. The single-sided cardboard sheet is urged in the moving direction, which is the lower side, on the first roll by rotating it so that the opposite end is directed downward and inclining. Can be further guided to the moving direction side.

  Accordingly, after the brake roll and the first roll are moved together with the holding portion to one side in the width direction by the offset amount of the shift amount, if the first roll is in an inclined state, the adjusted travel is performed by the relative movement of the single-sided cardboard sheet. The holding roll can be moved together with the first roll in the direction of returning the brake roll while maintaining the position. In other words, even if the required amount of movement to one side in the left-right width direction for position adjustment exceeds the one-side stroke limit of the holding unit by the driving device, until the holding unit once reaches its stroke limit position The holding portion is returned to the initial position while maintaining the adjusted travel position of the one-side cardboard sheet, and then the first roll is returned to the horizontal position, and the holding portion can be further moved by an amount corresponding to the remaining amount. The traveling position of the single-sided cardboard sheet can be further adjusted to the target position.

  However, in the actual control process, if the brake roll is moved to near the stroke limit and then returned to the initial position and the remaining necessary amount is moved, the adjustment will be delayed by the time it takes to return. When the adjustment cannot be completed in a single stroke, it is desirable to set the return position to a distance shorter than the stroke limit and to achieve a total adjustment amount while repeating the reciprocation in a short time.

  That is, as a control process in the control unit, a detection step of detecting the running position of the single-sided cardboard sheet by the detection unit, and a position adjustment by obtaining a deviation amount between the machine center line and the single-sided cardboard sheet center line based on the detection result The position adjustment amount setting step for setting the amount is compared with an adjustment limit value smaller than the predetermined stroke limit value of the holding unit. Select the first drive mode that moves the position adjustment amount by the stroke, and if it exceeds the limit value, it is necessary to accumulate the adjustment amount by repeating the reciprocating movement of the holding part at a predetermined short distance And a drive mode selection step of selecting a second drive mode that achieves the total amount of position adjustment.

  For example, when the first drive mode is selected, the control unit instructs the drive device of the holding unit to drive once for one movement amount. When the second driving mode is selected, the control unit instructs the driving device of the holding unit to repeatedly drive the reciprocating movement of one short distance movement a predetermined number of times, and at the same time, the driving unit of the first roll On the other hand, in response to each short-distance movement of the holding unit, the repetitive drive is commanded to repeat the tilt rotation of the first roll and the return rotation to the horizontal initial position the same number of times as the holding unit side. Therefore, in the second drive mode, all of the necessary adjustment amount can be completed in a short time as the total adjustment movement by the high-speed repetitive driving of the holding unit and the first roll.

  Note that the first roll in the present invention is a tension roll for adjusting the introduction angle or applying an appropriate tension before the single-sided cardboard sheet is introduced into the brake roll in the actual configuration of the guide device. Since it will be arranged on the upstream side, one of these may function as the first roll.

  In particular, by using the first roll that is disposed immediately upstream to send the single-sided cardboard sheet directly to the brake roll, the responsiveness when returning the brake roll to the initial position together with the holding part during the position adjustment is fast. As a result, the position can be adjusted with higher accuracy. In this case, the first roll is pivotally supported by the holding portion in a substantially parallel state slightly higher than the brake roll so that the one-side cardboard sheet is wound in an S shape between the first roll and the brake roll.

  Further, the first roll can be configured to move integrally with the brake roll by providing a pair of bearing portions that support both ends of the rotation shaft in the holding portion. In this case, if the bearing portion is configured to have an elongated hole shape extending in the vertical direction in which both ends of the rotation shaft of the first roll are slidably inserted therein, the first roll has a central portion of the shaft center. It is pivotally supported so as to be pivotable in the vertical direction as a center.

  In addition, the brake roll of the present invention can brake the single-sided cardboard sheet by generating friction between the single-sided cardboard sheet and rotating it while keeping the single-sided cardboard sheet well without sliding up. Although what is necessary is just a thing, you may employ | adopt the existing thing conventionally utilized as a brake roll. For example, the one provided with a rubber-like elastic body covering the roll surface or one having a plurality of grooves formed on the surface is simple.

  Further, the drive unit for the first roll and the drive unit for the holding unit may be of any mechanism that can be driven in response to a command from the control unit, such as an electric cylinder, hydraulic fluid or air working fluid drive. Cylinders can be used.

  Moreover, what is necessary is just to set the position and number of tension rolls other than the 1st roll arrange | positioned at a guide apparatus suitably for the introduction angle adjustment to a brake roll, and tension | tensile_strength provision.

  As described above, the present invention moves the holding part pivotally supporting the brake roll for braking the single-sided cardboard sheet in the horizontal direction perpendicular to the traveling direction, thereby causing damage or folding at the both edges of the single-sided cardboard sheet. In addition, the travel position of the single-sided cardboard sheet on the brake roll can be adjusted in the width direction without causing collapse, and the first roll around which the single-sided cardboard sheet is wound at the upstream position of the brake roll The first roll is configured to be supported by the holding portion so as to be pivotable in the vertical direction about the central portion of the center, and moved in the width direction integrally with the brake roll. The position after adjustment is maintained by returning the holding part while relatively moving the single-sided corrugated cardboard sheet to the moving side in a tilted state. Since the brake roll can be returned, the travel position adjustment of the single-sided corrugated cardboard sheet can be continuously performed by moving the brake roll in the same direction after returning the brake roll even after the holding part moves to near the stroke limit. effective.

1 is a schematic side view of a single-sided cardboard sheet guide device according to an embodiment of the present invention. It is explanatory drawing which shows operation | movement of the 1st roll and brake roll of the guide apparatus of FIG. It is a schematic side view which shows an example of the brake stand as a guide apparatus of the conventional single-sided cardboard sheet | seat.

  As an embodiment of the present invention, a schematic side view of FIG. 1 shows a guide device arranged on a path of a single-sided cardboard sheet that travels from a single facer to a preheating part before a double facer in a corrugating machine. FIG. 2 is a schematic diagram for explaining an operation of travel position adjustment by the first roll and the brake roll in the guide device of FIG. The guide device of FIG. 1 shows a case where the guide device is provided in a two-layer structure in order to brake and guide two types of single-sided cardboard sheets of A-stage and B-stage, but the two layers have the same configuration. Therefore, the following description is for one layer.

  The guide device 1 in the present embodiment brakes the traveling of the single-sided cardboard sheet D on the holding unit 3 that is installed so as to be movable in the horizontal direction perpendicular to the traveling direction of each single-sided cardboard sheet D with respect to the main body frame 2. The brake roll 4 fed to the downstream side and the first roll feeding the single-sided cardboard sheet D to the brake roll 4 on the immediate upstream side are pivotally supported so as to face each other at different height positions.

  Therefore, the single-sided cardboard sheet D introduced from the single facer side to the guide device 1 via the tension roll T1 is wound around the outer periphery of the first roll 5 over the half circumference on the center side, and then the back liner. After being wound around the outer periphery of the brake roll 4 over a half circumference on the side, it travels to the preheat roll side downstream through the tension roll T2, and between the first roll 5 and the brake roll 4, an S-shape is formed. It will be in the state wound by the shape.

  Each of the brake roll 4 and the first roll 5 is rotatably supported by the holding unit 3 and can be appropriately rotated by a single-sided cardboard sheet D. The first roll 5 is slidably fitted into a long hole 8 extending in the vertical direction at a bearing portion 7 on the holding portion side where both ends 6 of the rotating shaft are pivotally supported. It can be pivoted vertically up and down as the center. The rotation of the first roll 5 is performed at a predetermined timing and direction by a driving unit 5M such as an electric cylinder that is driven and controlled by the control unit.

  Note that a gear motor M is attached to the brake roll 4 via a one-way clutch, and the gear motor M is driven in a preparatory process before the corrugating machine is operated to reduce the work-in burden of paper passing. In addition, the brake roll 4 is not loaded when the machine is operating.

  The holding unit 3 is moved by a predetermined direction and distance along a horizontal direction orthogonal to the traveling direction by a driving device 3M such as an electric cylinder, the driving of which is controlled by the control unit. Thus, the first roll 5 and the brake roll 4 are integrally moved by a predetermined distance in either the left or right direction along the width direction of the single-sided cardboard sheet.

  The frame body 2 is provided with a camera 9 that captures a single-sided cardboard sheet D that brakes on the brake roll 4 as a traveling position detector. The control unit obtains a deviation amount between a predetermined machine center and the center line of the single-sided cardboard sheet D running on the brake roll 4 based on the imaging data of the single-sided cardboard sheet D output from the camera 9, An amount of movement sufficient to cancel the amount of deviation is commanded to the drive device, and the holding unit 3 is moved together with the first roll 5 and the brake roll 4 by the drive control.

  In the guide device 1 having the above configuration, while the corrugating machine is being driven, the travel position of the single-sided cardboard sheet D on the brake roll 4 is detected, and the shift amount is eliminated while obtaining the shift amount from the machine center. Thus, the travel position of the single-sided cardboard sheet D can always be adjusted by moving the brake roll 4 in the width direction. At this time, there is no occurrence of damage, ear bending, corrugation or the like due to friction at both end edges, which deteriorates the quality of the cardboard product.

  Further, even when the movement of the holding unit 3 reaches the one-side stroke limit, even if the total movement amount necessary for the position adjustment is not sufficient, after the movement to the limit position, the first movement moved in the width direction integrally with the brake roll 4. The roll 5 is rotated so that the rotation shaft end on the moving direction side is downward and the rotation shaft end on the opposite side is slid upward in the long holes 8 of the respective bearing portions 7 to be inclined, and at the same time the holding portion If 3 is returned to the reverse direction, the position of the brake roll 4 can also be returned while the single-sided cardboard sheet D on the first roll 5 maintains the adjusted travel position by the relative movement in the moving direction. Therefore, if the holding part 3 is moved again by returning the inclination of the first roll 5 after returning to the initial position, the total movement amount from the previous halfway adjustment position to the target adjustment position can also be achieved.

  In this case, if the remaining adjustment movement is performed after returning to the stroke limit after moving to the stroke limit, the adjustment is delayed by the return time, which is not practical. Therefore, in the case of an adjustment amount in which the amount of deviation cannot be offset within a single stroke, a second drive mode may be set in which a predetermined amount of adjustment is achieved by repeating a short-distance reciprocating movement. .

  For example, when the stroke limit in the horizontal direction of the holding unit 3 is ± 50 mm from the initial position, if the reciprocating distance in the second drive mode is set to 10 mm, and the second drive mode is selected by the control unit, the holding unit At the time when 3 moves 10 mm in the horizontal direction, the holding unit 3 is rotated by rotating the drive cylinder in the reverse direction at the same time that the sliding amount of the single-sided cardboard sheet D on the first roll 5 is 10 mm or more. -A series of driving operations of returning the first roll 5 to the horizontal position by returning to the initial position of -10 mm and returning it to the horizontal position until the total of the respective movement amounts 10 mm in the adjustment direction reaches the total adjustment amount required. It is repeated at a high speed, and the adjustment of the shift amount can be completed in a relatively short time.

  In addition, although the case where the 1st roll was arrange | positioned in the immediately upstream position of a brake roll was shown above, this invention is not limited to this, What was arrange | positioned upstream from a brake roll is shown. It can be a first roll. However, not only the responsiveness in the position adjustment with the brake roll but also the structure in which the first roll and the brake roll are pivotally supported by the holding portion so that they can move horizontally integrally, In view of the simplicity of design, it is most efficient and desirable to arrange the first roll immediately upstream of the brake roll where the single-sided corrugated cardboard sheet can be sent directly to the brake roll without any other tension rolls interposed therebetween.

1: Guide device 2: Body frame 3: Holding portion 3M: Driving device 4: Brake roll 5: First roll 5M: First roll driving portion 6: Rotating shaft end 7 of the first roll: Bearing portion 8: Long hole 9 : Camera M: Gear motor T1, T2: Tension roll D, DA, DB: Single-sided cardboard sheet S: Suction box B: Brake stand G: Guide plate P: Preheating unit

Claims (4)

A guide device installed on a traveling path of a single-sided corrugated cardboard sheet from a bonding process unit between a back liner and a corrugated core sheet to a bonding process unit with a front liner of a corrugated board manufacturing machine,
A brake roll that wraps around the outer circumference of the single-sided corrugated cardboard sheet traveling from the upstream side over a half circumference on the back liner side and sends it to the downstream side,
A first roll on which the single-sided cardboard sheet is wound around the outer circumferential surface over a half circumference at an opposing position upstream from the brake roll;
A holding portion for holding the first roll and the brake roll so as to be rotatable and integrally movable in a horizontal direction perpendicular to the traveling direction of the single-sided cardboard,
A driving device for moving the holding unit;
A detection unit for detecting the traveling position of the single-sided cardboard sheet on the brake roll;
Based on the detection result from the detection unit, the amount of deviation of the center line of the single-sided cardboard sheet with respect to a predetermined machine center line is obtained, and the drive unit is moved so as to move the distance by a distance that cancels the deviation amount. A control unit for controlling,
The brake roll is provided with a surface mechanism that holds a single-sided cardboard sheet by generating a frictional force with the single-sided cardboard sheet,
The first roll is pivotally supported by the holding part so as to be rotatable in the vertical direction around the central part of the axis of the first roll, and the first roll is rotated by drive control by the control part. A guide device for a single-sided corrugated cardboard sheet, comprising a first roll driving unit in an arbitrary inclined state. A guide device installed on a traveling path of a single-sided corrugated cardboard sheet from a bonding process unit between a back liner and a corrugated core sheet to a bonding process unit with a front liner of a corrugated board manufacturing machine,
A brake roll that wraps around the outer circumferential surface of the single-sided corrugated cardboard sheet traveling from the upstream side over a half circumference on the back liner side and sends it to the downstream side,
A first roll on which the single-sided cardboard sheet is wound around the outer circumferential surface over a half circumference at an opposing position upstream from the brake roll;
A holding portion for holding the first roll and the brake roll so as to be rotatable and integrally movable in a horizontal direction perpendicular to the traveling direction of the single-sided cardboard,
A driving device for moving the holding unit;
A detection unit for detecting the traveling position of the single-sided cardboard sheet on the brake roll;
Based on the detection result from the detection unit, the amount of deviation of the center line of the single-sided cardboard sheet with respect to a predetermined machine center line is obtained, and the drive unit is moved so as to move the distance by a distance that cancels the deviation amount. A control unit for controlling,
The brake roll is provided with a surface mechanism that holds a single-sided cardboard sheet by generating a frictional force with the single-sided cardboard sheet,
The first roll is pivotally supported by the holding part so as to be rotatable in the vertical direction around the central part of the axis of the first roll, and the first roll is rotated by drive control by the control part. A single-sided corrugated cardboard sheet comprising a first roll driving unit that is in an arbitrary inclined state, and is arranged at a position immediately upstream of the brake roll and directly sends the single-sided cardboard sheet to the brake roll. Guide device. A guide device installed on a traveling path of a single-sided corrugated cardboard sheet from a bonding process unit between a back liner and a corrugated core sheet to a bonding process unit with a front liner of a corrugated board manufacturing machine,
A brake roll that wraps around the outer circumferential surface of the single-sided corrugated cardboard sheet traveling from the upstream side over a half circumference on the back liner side and sends it to the downstream side,
A first roll on which the single-sided cardboard sheet is wound around the outer circumferential surface over a half circumference at an opposing position upstream from the brake roll;
A holding portion for holding the first roll and the brake roll so as to be rotatable and integrally movable in a horizontal direction perpendicular to the traveling direction of the single-sided cardboard,
A driving device for moving the holding unit;
A detection unit for detecting the traveling position of the single-sided cardboard sheet on the brake roll;
Based on the detection result from the detection unit, the amount of deviation of the center line of the single-sided cardboard sheet with respect to a predetermined machine center line is obtained, and the drive unit is moved so as to move the distance by a distance that cancels the deviation amount. A control unit for controlling,
The brake roll is provided with a surface mechanism that holds a single-sided cardboard sheet by generating a frictional force with the single-sided cardboard sheet,
The first roll is pivotally supported by the holding part so as to be rotatable in the vertical direction around the central part of the axis of the first roll, and the first roll is rotated by drive control by the control part. A first roll drive unit having an arbitrary inclined state;
The holding portion is provided with a pair of bearing portions that support both ends of the rotating shaft of the first roll, and the bearing portions are respectively vertically fitted with both ends of the rotating shaft slidably fitted therein. A guide device for a single-sided corrugated cardboard sheet, characterized in that it has a long hole extending in the direction. A guide device installed on a traveling path of a single-sided corrugated cardboard sheet from a bonding process unit between a back liner and a corrugated core sheet to a bonding process unit with a front liner of a corrugated board manufacturing machine,
A brake roll that wraps around the outer circumferential surface of the single-sided corrugated cardboard sheet traveling from the upstream side over a half circumference on the back liner side and sends it to the downstream side,
A first roll on which the single-sided cardboard sheet is wound around the outer circumferential surface over a half circumference at an opposing position upstream from the brake roll;
A holding portion for holding the first roll and the brake roll so as to be rotatable and integrally movable in a horizontal direction perpendicular to the traveling direction of the single-sided cardboard,
A driving device for moving the holding unit;
A detection unit for detecting the traveling position of the single-sided cardboard sheet on the brake roll;
Based on the detection result from the detection unit, the amount of deviation of the center line of the single-sided cardboard sheet with respect to a predetermined machine center line is obtained, and the drive unit is moved so as to move the distance by a distance that cancels the deviation amount. A control unit for controlling,
The brake roll is provided with a surface mechanism that holds a single-sided cardboard sheet by generating a frictional force with the single-sided cardboard sheet,
The first roll is pivotally supported by the holding part so as to be rotatable in the vertical direction around the central part of the axis of the first roll, and the first roll is rotated by drive control by the control part. A first roll drive unit having an arbitrary inclined state;
The guide mechanism for a single-sided cardboard sheet, wherein the surface mechanism of the brake roll is composed of a rubber-like elastic body or a plurality of grooves formed over the entire circumference.

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