JPH0925032A - Control method for original paper roll conveyance carriage and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve production efficiency by shortening loss time in changing the order change of original paper roll, and relieve labor of a worker and an operator. SOLUTION: An original paper roll conveyance carriage 28 which is driven by a motor 30 for running is disposed between installation position of a mill roll stand 10 and a standby station S for original paper roll 12. At the standby station S, a pair of gravimeters 38, 40 are disposed, separated from each other at a prescribed interval in the width direction of the original paper roll 12, The measurements made with both gravimeters 38, 40 are inputted into a control circuit 36. The control circuit 36 computes a distance between the machine width center of a mill roll stand 10 and the width center of the original paper roll 12 in the standby station S, and controls driving of the motor 30 based on a computed value. A carriage 28 stops as positioned at a position where the width center of the conveyance carriage 28 meets that of the original paper roll 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method and apparatus for a base paper roll transporting carriage for transporting a base paper roll stored in a standby station to a position where it can be loaded into a base paper supply device.

[0002]

2. Description of the Related Art A corrugated sheet having a required pitch is imparted to a core paper, a corrugated corrugated top portion and a liner are glued and adhered to each other to produce a single-sided corrugated board sheet, and a back liner is attached to the single-sided corrugated board sheet. Corrugating machines for producing corrugated board sheets are widely used. In this corrugating machine, a single facer for manufacturing a single-sided cardboard sheet and a double facer for bonding a back liner to the obtained single-sided cardboard sheet are used as main devices. Furthermore, as ancillary equipment, a base paper supply device that continuously supplies webs such as core paper and liners and other back liners (these webs are hereinafter referred to as “base papers”) to the single facer or double facer is indispensable. I have.

The base paper is distributed in the form of a roll having a predetermined diameter (hereinafter referred to as "base paper roll") wound around a core paper tube, and a predetermined stand-by separated from the base paper supply device. Stored in the station. Then, the raw paper roll stored in the standby station is placed on a raw paper roll transport carriage (hereinafter also simply referred to as a "transport carriage") that travels back and forth between the standby station and the raw paper supply device,
The base paper roll conveyed to the position where the base paper supply device is installed is loaded into the base paper supply device, and the base paper is fed out and supplied there. A so-called swing arm type mill roll stand is widely known as a base paper supply device. This mill roll stand has a pair of left and right swing arms that are respectively spline-coupled to a horizontal rotation shaft, and the center blocks that can be inserted into both ends of the paper tube of the base paper roll are opposed to each other at the tips of the arms. It is configured to be chucked by both center blocks of the base paper roll mounted on the transport carriage.

[0004]

SUMMARY OF THE INVENTION The transport carriage is usually a roll having a minimum width dimension so that a roll having a minimum width dimension to a maximum width dimension of a base sheet used in a corrugating machine can be placed without any trouble. Width of the carriage based on
(Dimension in the same direction as the width direction of the placed base paper roll) was set. Therefore, when the base paper roll of the maximum width dimension is placed on the transport carriage, if the width center of the base paper roll and the width center of the transport carriage are misaligned, the balance of the base paper roll is disturbed and There is a risk that the swing arm may be tilted in a direction intersecting with, and automatic chucking by the swing arm may not be possible. That is, when the base paper roll is placed on the transport carriage at the standby station, the width centers of the carriage and the base paper roll are required to be substantially aligned.

In this case, a plurality of base paper rolls having different diameters and widths carried from a stockyard by a forklift or the like are positioned and stored in the standby station in a preset order. . That is, the driver of the forklift truck needs to operate the forklift to lower the base paper roll so that the width center of the base paper roll is substantially aligned with the width center of the carriage that stops at the fixed position of the standby station. However, it is extremely difficult to accurately position a plurality of base paper rolls having different widths and diameters at predetermined positions by a forklift. In addition, since the operator rolls the stored base paper roll on the carrier to place it, it is extremely difficult to move the heavy base paper roll in the width direction, and it is straight from the storage position. At present, it is rolled and placed on a carrier truck.

Therefore, if the width center of the base paper roll at the storage position deviates from the center of the width of the carriage that is on standby, the base paper roll will be placed on the carriage as it is. If the centers of both widths are greatly deviated, the above-mentioned problem occurs, so the base paper roll placed on the carrier is temporarily lowered, and the operator of the mill roll stand moves away from the operation panel to the standby station to move the base paper roll. The deviation between the width center and the width center of the carriage is confirmed, the carriage is moved and adjusted to a position where the width centers substantially coincide with each other, and then the work of mounting the base paper roll on the carriage again is performed. For this reason, a worker who carries out the work of placing the base paper roll on the carrier is to be subjected to heavy labor, and
The operator of the mill roll stand has had the trouble of moving back and forth between the operation panel and the standby station. Moreover, it is pointed out that it takes a long time to place the base paper roll on the transporting trolley, the loss time increases, and the production efficiency decreases.
Further, since the position adjustment of the carrier vehicle depends on the operator's eyes, there is a problem that the accuracy of the position adjustment and the length of the lost time differ depending on the skill level of the operator. As described above, since it takes manpower to place the base paper roll on the transport carriage, it is difficult to completely automate a series of operations for loading the base paper roll of the standby station on the mill roll stand.

The carrier cart on which the raw paper roll is placed at the standby station is set to stop at a position where the width center of the carriage is aligned with the center of the machine width of the mill roll stand. In this case, in the mill roll stand, in consideration of safety, the pair of swing arms are always separated by the full machine width to wait for chucking, and the width center of the base paper roll is displaced from the width center of the carriage. Even if it is, the chucking is surely performed. For this reason, it takes a long time to chuck the base paper roll of each width dimension, and the cycle time at the time of order change becomes long, resulting in a problem of lowering production efficiency.

[0008]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems inherent in the prior art described above, and has been proposed in order to solve this problem. The present invention provides a control method and apparatus for a base paper roll carrier that can be always placed on the base paper roll, shorten the loss time when changing orders, improve the production efficiency, and reduce the labor of operators and operators. The purpose is to

[0009]

In order to overcome the above-mentioned problems and achieve a desired object, a method of controlling a carriage for a base paper roll according to the present invention is provided between a standby station for the base paper roll and a base paper supply device. When the carriage for rolls of base paper, which is arranged so that it can travel back and forth, is moved from its reference standby position to the placement position of the base paper roll in the standby station, the width center of the base paper roll stored in the standby station is detected. Then, the distance from the reference standby position of the base paper roll carrier to the width center of the detected base paper roll is calculated, and the drive means of the base paper roll carrier is driven and controlled based on the calculated value to obtain the base paper. The carriage is stopped at a position where the widthwise center of the roll carriage along the widthwise direction of the base paper roll coincides with the width center of the base paper roll. And it features.

Further, in order to suitably carry out the above-mentioned method,
A control device for a base paper roll carrier according to another invention of the present application is a base paper roll carrier that is arranged so as to be capable of reciprocating between a base paper roll standby station and a base paper supply device. Detecting means for detecting the width center of the base paper roll, drive means for moving and stopping the base paper roll carrier, and base paper roll detected by the detecting means from the reference standby position of the base paper roll carrier Calculate the distance to the width center of
And a control means for driving and controlling the drive means on the basis of the calculated value. The base paper roll transport carriage at the reference standby position is provided with a center in the width direction along the width direction of the raw paper roll in the transport carriage and the base paper roll. It is characterized in that it is configured to be moved to a position where the center of the width of (1) coincides with the position for stop positioning.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a control method of a base paper roll carrier according to the present invention will be described below with reference to the accompanying drawings in relation to an apparatus capable of suitably carrying out the control method.

As shown in FIG. 1, on the floor surface of the factory site where the swing arm type mill roll stand 10 is installed, the standby station S for the base paper roll 12 and the mill set at a position separated from the stand 10 and the mill. The swing arms 14, 1 extend between the roll stand 10 and the installation position.
A pit 18 is bored at a required depth in parallel with a rotary shaft 16 that supports the shaft 4. A transport device 20 for transporting the raw paper roll 12 is housed and installed in the pit 18, and the raw paper roll 12 stored in the standby station S is transferred by the transport device 20 to both the swing arms 1.
It is configured to be conveyed to a loading position below the rocking loci of 4,14.

As shown in FIG. 2, the transfer device 20 is provided with a driven sprocket 22 and a drive sprocket 24 that are rotatably supported near both ends in the extending direction of the pit 18, and are wound around both sprockets 22 and 24. At a predetermined position of the hanging endless chain 26, a base paper roll carrier 28, which is movably arranged in the pit, is fixed. A motor 30 having a speed reducer is connected to the drive sprocket 24 via a chain-sprocket transmission system 32. By rotating the motor 30 in a required direction,
The endless chain 26 is linearly moved back and forth, and the carriage 28 is placed at the base paper roll mounting position (standby station S).
And a base paper roll loading position (mill roll stand 10). The carrier 28 is
Table 34 for stably placing the base paper roll 12
Is provided on the upper part, and only this table 34 is provided in the pit 18
Facing above.

The motor 30 has a pulse generator P.
G is additionally provided, and a pulse signal from the generator PG is input to the control circuit 36 so that the present position of the carriage 28 can always be detected. Then, based on the detection value input to the control circuit 36 from the detecting means for detecting the width center of the base paper roll 12, the control circuit 36 stops the positioning of the transport carriage 28 at a predetermined base paper roll mounting position. Controlled. Further, at the standby station S, the transport carriage 28 on which the base paper roll 12 is placed is
The width center of the mill roll stand 10 is controlled so as to stop at a reference standby position (loading position) that coincides with the machine width center of the mill roll stand 10. As the position detecting means of the carriage 28, a rotary encoder, a means combining a slit disk and a photoelectric tube, or the like can be adopted.

In the standby station S, as described above, various types of base paper rolls 12 carried from a stockyard by a forklift or the like are positioned and stored. In addition, the base paper roll 12 at the standby station S
Is positioned such that the width direction thereof is parallel to the extending direction of the pits 18, and the base paper roll 12 is rolled by a worker, for example, to reach the table 34 of the carriage 28 that has arrived at the base paper roll mounting position. It is configured to be placed.

In the standby station S, as shown in FIG. 1, on the floor surface on which the raw paper roll 12 to be used next time is placed, a pair of detecting means are arranged at predetermined intervals in the width direction of the raw paper roll 12. Are disposed, and the weights of the base paper roll 12 are respectively measured by the weight scales 38 and 40. And both scales 38,40
The measured value at is input to the control circuit 36, and the control circuit 36 calculates the width center of the raw paper roll 12. In the embodiment using the weighing scales 38 and 40 as the detecting means,
The position of the center of gravity of the base paper roll 12 is set to be regarded as the same as the width center. Further, the distance between the pair of weighing scales 38 and 40 is the same as that of the base paper roll 12 used in the corrugating machine.
It is set shorter than the minimum width dimension of.

Further, in the control circuit 36, from the machine width center P ₁ of the mill roll stand 10 at the standard standby position of the transport carriage 28 to the base paper roll 1 at the standby station S.
The distance to the width center P _{2 of 2} is calculated. That is, as shown in FIG. 3, the machine width center P of the mill roll stand 10 is
The distance from ₁ to the installation position of the first weigh scale 38 of the stand-side X _1, the distance between the first gravimeter 38 and the other of the second weigh scale 40 and X _2, the first gravimeter 38 Let R _{1 be} the measured value at the second weigher 40 and R _{2 be} the measured value at the second weighing scale 40. From the machine width center P ₁ of the mill roll stand 10 to the base paper roll 1
The distance X to the width center P _{2 of 2} is represented by the following equation. X = X ₁ + (R ₂ · X ₂ ) / (R ₁ + R ₂ ) Then, the control circuit 36 drives and controls the motor 30 on the basis of the value calculated by the above equation, thereby making a reference standby. The carriage 28 stopped at the position is moved toward the standby station S, and the carriage 2
It is configured to stop and position the carriage 28 at a position where the width center of 8 coincides with the width center of the base paper roll 12.

[0018]

Operation of the Embodiment Next, the operation of the control apparatus for the base paper roll carrier according to the embodiment will be described in relation to the control method. It should be noted that, as indicated by the chain double-dashed line in FIG. 1, the transport carriage 28 is stopped at a reference standby position where the machine width center P ₁ of the mill roll stand 10 and the width center of the carriage 28 coincide with each other. To do. In addition, in the waiting station S,
It is assumed that a plurality of base paper rolls 12 are stored in a predetermined order.

In this state, when the next-order base paper roll 12 is conveyed to the mill roll station 10 by the transfer carriage 28 stopped at the standard standby position due to order change or the like, first, the next-order base paper roll at the standby station S is first transferred. The two weights in the 12 width directions are measured by the weight scales 38 and 40. This measured value is input to the control circuit 36, and the distance between the machine width center P ₁ and the width center P ₂ is calculated in the device 36 by the above-mentioned formula.

The motor 30 is drive-controlled based on the calculated value to move the carriage 28 from the reference standby position toward the standby station S. And the carriage 2
At a position where the width center of 8 coincides with the width center of the base paper roll 12, the carriage 28 is stopped and positioned. As a result, the width of the base paper roll 12 placed on the transport carriage 28 by the worker at the standby station S is such that the width center of the roll 12 is the transport carriage 28.
Match the width center of. Therefore, after the carrier 28 is moved to the loading position of the mill roll stand 10, the automatic chucking is surely performed by the swing arms 14 of the stand 10.

In this way, the width center of the transport carriage 28 and the width center of the base paper roll 12 can always be made to coincide with each other, so that it is not necessary to remount the base paper roll 12 at the standby station S, and the operator does not have to do so. The labor can be reduced and the loss time can be shortened. Also,
Since the operator of the mill roll stand 10 can operate the transport carriage 28 without leaving the operation panel, the labor of the operator can be reduced. Further, since the width centers of the carriage 28 and the base paper roll 12 are coincident with each other, the pair of swing arms 14, 14 waiting to be loaded on the mill roll stand 10 are chucked to the base paper roll 12 of each width dimension. As long as they are separated by the minimum possible length, the time required for chucking can be shortened and the cycle time can be shortened.

[0022]

[About another embodiment] FIGS. 4 to 7 show another embodiment of the means for detecting the width center of the base paper roll 12.
In another embodiment of FIG. 4, a large number of switches 42 are arranged on the floor surface of the standby station S at required intervals in the width direction of the base paper roll 12.
And each switch 42 is connected to the control circuit 36. Each of the switches 42 is set so as to independently operate, for example, to be turned on by the weight of the raw paper roll 12 placed in the area where the switch group is arranged to detect the raw paper roll 12, and the control circuit 36 turns on the switch 42. Number of
The width dimension and the width center of the base paper roll 12 are set to be calculated from the (detection area). In the control circuit 36,
Based on the distance from the position of the switch 42 closest to the mill roll stand 10 that is ON to the machine width center P ₁ and the distance from the switch 42 to the width center P ₂ of the base paper roll 12, P ₁ The distance X from P ₂ to P ₂ is calculated. Since the order of the width dimension of the base paper roll 12 used in the corrugating machine is changed in units of 50 mm, the spacing between the switches 42 is 5 mm.
It is recommended to set it to 0 mm or less.

In another embodiment shown in FIG. 5, a large number of reflective photoelectric sensors 44 are arranged on the floor surface of the waiting station S in the width direction of the base paper roll 12 at required intervals, and each sensor 44 is provided with the control circuit 36. Connected to. This photoelectric sensor 44
Are independently turned on, for example, when the detection portions are covered with the base paper roll 12 that has arrived in the area where the sensors are arranged.
The control circuit 36 is set to operate to detect the base paper roll 12, and the control circuit 36 is set to calculate the width dimension and the width center of the base paper roll 12 from the number of sensors 44 (detection regions) that are turned on. Also, the distance X from the machine width center P ₁ of the mill roll stand 10 to the width center P ₂ of the base paper roll 12
Is calculated in the same manner as in the other embodiment shown in FIG. Instead of the photoelectric sensor 44, it is possible to employ a proximity sensor such as magnetism or pressure.

In another embodiment shown in FIG. 6, a U-shaped support member 46 is erected on the floor surface of the standby station S, and a horizontal portion 46a of the support member 46 facing the storage base paper roll 12 has a width. A large number of reflective photoelectric sensors 44 are arranged at required intervals in the direction. Also in this other embodiment, similarly to the other embodiment shown in FIG. 5, the width center of the roll 12 and the distance X are calculated by the number of detections of the base paper roll 12 by the photoelectric sensor 44. By disposing the photoelectric sensor 44 above the base paper roll 12 as shown in FIG. 6, it is possible to effectively prevent the detection unit of the photoelectric sensor 44 from being blocked by a paper scrap or the like and malfunctioning. Further, instead of the reflection type photoelectric sensor, a light emitting / receiving sensor paired with the floor surface and the supporting member may be arranged to face each other. Furthermore, since the order of the width dimension of the base paper roll 12 used in the photoelectric sensor machine is changed in units of 50 mm,
It is recommended that the spacing between the switches 42 be set to 50 mm or less.

In another embodiment shown in FIG. 7, a pair of image sensors 48, 4 are provided on a horizontal portion 46a of a supporting member 46 which is erected on the floor of the waiting station S and are spaced apart from each other by a required distance in the width direction.
8 is arranged, and a fluorescent lamp 50 as a light source is arranged on the floor. That is, when the base paper roll 12 arrives above the fluorescent lamp 50, the upward light is blocked. Therefore, the widthwise ends of the base paper roll 12 are detected by detecting the light with the image sensors 48. . Thus, the width center of the base paper roll 12 and the distance X are calculated to set the stop position of the carriage 28.

The shape of the raw paper roll 12 may be stored in one image sensor, and the width center of the raw paper roll 12 may be calculated from the image detected by the sensor.

In each of the other embodiments shown in FIGS. 4 to 7, the means 42, 44, for detecting the width center of the base paper roll 12 is also used.
Based on the value detected by 48, the distance X from the machine width center P ₁ of the mill roll stand 10 to the width center P ₂ of the raw paper roll 12 at the standby station S is calculated. The control circuit 36 drives and controls the motor 30 of the transport device 20 based on the calculated value, and the width center of the transport carriage 28 is set to the width center of the base paper roll 12 to be used next time stored in the standby station S. The carriage 28 can be stopped at the matching position. As a result, the base paper roll 12 can be placed on the carriage 28 with the width centers thereof always aligned, and automatic chucking by the mill roll stand 10 can be performed without any trouble. In addition, it is recommended that the spacing between the photoelectric sensors 44 in another embodiment shown in FIGS. 5 and 6 be set to 50 mm or less.

Next, FIG. 8 shows an automatic placement device for a base paper roll which employs the control device according to the embodiment.
On the floor surface of the standby station S, a tilting table 52 is arranged, the end of which is directed toward the pit side is rotatably supported, and at a predetermined position of the tilting table 52, for example, a photoelectric sensor 44 is arranged at predetermined intervals in the width direction. Are arranged in large numbers. And
The width center of the base paper roll 12 placed on the tilt table 52 is set to be calculated by the number of detections by the photoelectric sensor 44. A piston rod 54a of an air cylinder 54 is connected to an end of the tilting table 52 opposite to the pivotal support, and the air cylinder 54 is urged to tilt the tilting table 52 upward so that the tilting table 52 is mounted on the table 52. The base paper roll 12 placed is automatically placed on the table 34 of the carriage 28. Further, a slat conveyor 56 is arranged on the opposite side of the pit 18 with the tilting table 52 interposed therebetween, and a large number of base paper rolls 12 placed on the slat conveyor 56 at the standby station S are placed.
Can be sequentially transferred to the tilting table 52.

According to the structure shown in FIG. 8, if the raw paper roll 12 carried by the forklift to the waiting station S is placed on the slat conveyor 56, the conveyor 56 will run according to the order change command and the most downstream side. The base paper roll 12 is transferred to the tilt table 52. When the base paper roll 12 is transferred to the tilting table 52, the base paper roll 12 is detected by the photoelectric sensor group, and the detection signal is input to the control circuit 36, and the width center P ₂ of the base paper roll 12 and the mill roll are detected. The distance X from the machine width center P ₁ of the stand 10 is calculated. Then, based on this calculated value, the transport carriage 28 moves to the mounting position corresponding to the base paper roll 12, and the positioning is stopped. Then, the tilt table 52
When the base paper roll 12 is tilted, the base paper roll 12
Placed on By moving the carriage 28 to the loading position of the mill roll stand 10, the stand 10 is moved.
The base paper roll 12 is loaded with. That is, the placement of the raw paper roll 12 on the transport carriage 28 in the standby station S, the transport of the raw paper roll 12 by the transport carriage 28, and the loading of the raw paper roll 12 on the mill roll stand 10 can all be performed automatically, thus saving labor. Can be achieved.

[0030]

As described above, according to the control method and apparatus for the base paper roll carrier according to the present invention, the width center of the carrier is aligned with the width center of the base paper roll stored in the standby station. In this state, the carriage can be stopped and positioned. As a result, it is possible to reliably perform automatic loading of the base paper roll placed on the carrier by the base paper supply device, and to shorten the loss time associated with the order change and improve the production efficiency. Further, since it is not necessary for an operator who mounts the base paper roll on the carrier to repeat the same operation, and the operator does not have to move, it is possible to reduce the labor of the operator and the operator.

Further, since the carriage can be stopped at a position which always corresponds to the base paper roll of each width dimension, the work of placing the base paper roll at the standby station can be automated and the labor saving can be achieved. it can.

[Brief description of drawings]

FIG. 1 is an explanatory plan view showing a schematic configuration of a control device for a base paper roll carrier according to an embodiment.

FIG. 2 is an explanatory side view showing a schematic configuration of a control device for a base paper roll carrier truck according to the embodiment.

FIG. 3 is an explanatory diagram showing a relationship between respective positions when the distance X is obtained by the weight scale according to the embodiment.

FIG. 4 is a schematic explanatory view showing another embodiment of means for detecting the width center of the base paper roll.

FIG. 5 is a schematic explanatory view showing another embodiment of means for detecting the width center of the base paper roll.

FIG. 6 is a schematic explanatory view showing another embodiment of means for detecting the width center of the base paper roll.

FIG. 7 is a schematic explanatory view showing another embodiment of the means for detecting the width center of the base paper roll.

FIG. 8 is a schematic explanatory view showing an automatic placement device for a raw paper roll that employs the control device according to the embodiment.

[Explanation of symbols]

 10 Mill Roll Stand 12 Base Paper Roll 28 Base Paper Roll Carrier 30 Motor 36 Control Circuit 38 First Weight Scale 40 Second Weight Scale 42 Switch 44 Photoelectric Sensor 48 Image Sensor S Standby Station

Claims (6)

[Claims] 1. A standby station (S) for a base paper roll (12)
The base paper roll carrier (28) arranged so as to be capable of reciprocating between the base paper supply device (10) and the base paper supply device (10) from its reference standby position to the mounting position of the base paper roll (12) in the standby station (S). When moving, rolls of base paper stored in the standby station (S)
The width center of (12) is detected, the distance from the reference standby position of the base paper roll carrier (28) to the width center of the detected base paper roll (12) is calculated, and the base paper is calculated based on the calculated value. By controlling the drive means (30) of the roll carrier truck (28), the widthwise center of the base paper roll carrier truck (28) along the width direction of the base paper roll (12) is
A method of controlling a carriage for a base paper roll, characterized in that the carriage (28) is stopped at a position coinciding with the width center of the base paper roll (12). 2. The standby station (S) for the base paper roll (12)
In the base paper roll carrier (28) arranged to be capable of reciprocating between the base paper supply device (10) and the base paper supply device (10), the base paper rolls stored in the standby station (S)
Detecting means (38, 40, 42, 44, 48) for detecting the width center of (12), drive means (30) for moving and stopping the transport roll carrier (28) for the base paper roll, and transport for the base paper roll Base paper roll detected by the detection means (38, 40, 42, 44, 48) from the reference standby position of the carriage (28)
Comprising a control means (36) for calculating the distance to the width center of (12) and drivingly controlling the drive means (30) based on the calculated value, and the base paper roll transport carriage (28) at the reference standby position. ) Is moved to a position where the widthwise center of the base paper roll (12) along the widthwise direction of the transport carriage (28) and the width center of the base paper roll (12) coincide with each other, and stop positioning is performed. A control device for a carriage for a base paper roll. 3. The weighing means comprises two weighing scales (38, 40) spaced apart in the width direction of the base paper roll (12).
3. The control device for a base paper roll carrier according to claim 2, wherein the width center of the base paper roll (12) is calculated from the weight measured by (38, 40). 4. The detection means is a number of switches (42) spaced at a predetermined interval in the width direction of the base paper roll (12),
3. The control device for a base paper roll carrier according to claim 2, wherein the width center of the base paper roll (12) is calculated based on the detection area of the base paper roll (12) by these switches. 5. The detection means is a large number of photoelectric sensors (44) spaced at predetermined intervals in the width direction of the base paper roll (12), and the base paper roll (12) is detected by the photoelectric sensor group. 3. The control device for a base paper roll carrier according to claim 2, wherein the width center of the roll (12) is calculated. 6. The detection means is an image sensor (48), and calculates the width center of the raw paper roll (12) from the positions of both edge portions of the raw paper roll (12) detected by the sensor (48). The control device for a transporting vehicle for base paper rolls according to claim 2.