JP5505797B2 - Guide roller group driving device for belt-shaped sheet winding device - Google Patents

Description

  The present invention relates to a driving device that drives a guide roller group for guiding a belt-like sheet to a winding position in a winding device that winds the belt-like sheet such as a plastic film or paper while rewinding it from an original roll.

  Generally, the guide roller group of the belt-shaped sheet winding device is composed of a large number of guide rollers arranged on the travel path of the belt-shaped sheet, and guides the belt-shaped sheet rewound from the original roll to the winding position during winding of the belt-shaped sheet. And transport. The guide roller group driving device is configured so that the circumferential speed (circumferential speed) of the outer circumferential surface of each guide roller constituting the guide roller group is the same as the necessary belt sheet winding speed during winding of the belt-shaped sheet. Rotate to drive. Thereby, the belt-like sheet travels along the guide path formed by the guide roller group at the same speed as the peripheral speed of the guide roller. The belt-shaped sheet winding speed is gradually increased when winding is started, maintained at that speed when the required speed is reached, and gradually decreases after a certain period. When a predetermined amount of the belt-like sheet is wound up, the winding is stopped.

  Conventionally, a guide roller group driving device of a belt-shaped sheet winding device has only one motor for the guide roller group, and the rotation of this motor is transmitted to each guide roller constituting the guide roller group via a transmission system. There is what is transmitted (see Patent Document 1 below). The motor has a rated output capable of accelerating the belt sheet travel speed from zero to the design speed (maximum set speed) with a predetermined acceleration and decelerating from the design speed to zero with a predetermined deceleration. ing. Further, the guide roller group driving device is provided with a speed control device, and this speed control device can control the rotational speed of the output shaft of the motor based on the belt-like sheet traveling speed, acceleration and deceleration set thereto. It is like that.

  However, recently, a belt-like sheet taken up by a winding device tends to be widened, and accordingly, the surface length of each guide roller of the guide roller group has to be lengthened, and each guide from the viewpoint of mechanical strength. It is necessary to increase the outer diameter of the roller. In order to improve productivity, it is also required to increase the winding speed. In order to satisfy the design conditions for the belt sheet traveling speed, acceleration, and deceleration required for the winding device, the rated output of the motor that drives the guide roller group is increased and the transmission system is enlarged to increase the transmission. It is necessary to increase the torque that can be transmitted by the system.

  For example, in the guide roller group driving device in which the roller surface length of the guide roller group is 8.6 meters, and the load of the guide roller group or the like, the GD2 (Gd square) converted to the motor output shaft is about 400 kilograms square meters. When the motor has to be accelerated from zero to 1730 revolutions per minute in one minute, a motor having a rated output of 55 kilowatts is adopted as the motor for driving the guide roller group. However, in the winding device, the belt-like sheet is further widened so that the roller surface length of the guide roller group becomes 8.9 meters and the number of guide rollers increases, and GD2 converted to the motor output shaft of the load of the guide roller group etc. Is about 500 kilograms / square meter, a motor with a rated output of about 70 kilowatts is required to accelerate the motor in the same manner as the former. However, the rated output of a commercially available motor increases stepwise, for example, 37 kW, 55 kW, and 75 kW, and in this case, the actually used motor has a rated output of 75 kW.

  Further, in the guide roller group driving device, when the belt-like sheet winding speed is accelerated or decelerated, the guide roller group driving device is arranged between the peripheral speed of the guide roller located far from the motor and the peripheral speed of the guide roller near the motor. For example, an error may occur due to the elongation of the belt or the like, and thereby a slip may occur between the running belt-like sheet and the outer peripheral surface of the guide roller, and the surface of the belt-like sheet may be scratched. Therefore, in order to prevent this, it is necessary to suppress the elongation of the belt or the like to a certain value or less in the transmission system and to eliminate the slip and the backlash. For this reason, the transmission system is larger than other normal transmission systems, such as using a larger belt.

  Therefore, in the conventional guide roller group driving device, the larger the belt-like sheet winding device, the larger the motor that must be used, and the more the motor with the rated output that is larger than necessary is used. . If the motor is large, the cost will increase suddenly as the rated output increases by one step, and the transmission system will increase in size accordingly. Equipment costs will increase significantly and the space occupied by the motor and transmission system will increase. This causes problems such as difficulty in securing the installation location of the belt-like sheet winding device. Further, when the motor and the transmission system are increased in size, the radius of the rotating portion increases, and the moment of inertia increases in proportion to the square of the radius of the rotating portion, so that power is wasted.

  Conventionally, a separate motor corresponding to the magnitude of the load is provided for each guide roller of the guide roller group, and a speed control device is provided for each motor, and a speed control device for the motor that drives the first roller. The speed control device of the motor that drives each of the second and subsequent rollers controls the speed of each motor based on the rotation speed of the immediately preceding roller. Thus, there is also a guide roller group driving device that drives the guide roller group in conjunction with individual motors (see Patent Document 2 below).

  However, this driving device for the guide roller group has a problem that the control of individual motors becomes complicated because the speeds of a large number of motors must be synchronized. Further, the error in the speed of the outer peripheral surface of the guide roller depends on the control accuracy such as the speed resolution (minimum speed at which the control device can recognize the difference) in the speed control of the motor. Since the speed resolution is constant regardless of the travel speed of the belt-like sheet, the ratio of the circumferential speed error of the guide roller to the travel speed of the belt-like sheet is relatively small when the belt-like sheet travel speed is high, but The smaller the seat travel speed, the greater the error rate. Since there is a limit to reducing the speed resolution, the guide roller group drive device that drives the guide roller group in conjunction with individual motors currently suppresses the error in the peripheral speed between the guide rollers to a certain level or less. However, it cannot be said to have sufficient reliability. Moreover, the gripping force of the belt-like sheet by the guide roller tends to be larger when the belt-like sheet is traveling at a low speed than when the belt is traveling at a high speed. Therefore, during the acceleration / deceleration of the belt-like sheet, the belt-like sheet surface and the outer peripheral surface of the guide roller rub against each other due to an error in the peripheral speed between the guide rollers, resulting in a scratch on the belt-like sheet surface. There is a problem that it is easy to become.

JP-A-2-225243 JP-A-6-83985

  According to the present invention, even if the belt-like sheet to be conveyed is widened, it is possible to suppress a significant increase in equipment cost and occupied space, and the belt-like sheet is scratched without using a complicated speed control system. It is an object of the present invention to provide a guide roller group driving device capable of driving the guide roller group so as not to occur.

  The present invention is a guide roller group driving device for a belt-shaped sheet winding device that drives a guide roller group for guiding and transporting a belt-shaped sheet rewound from an original roll to a winding position, and the guide roller The group is divided into a plurality of division guide roller groups, and a motor and a transmission system capable of transmitting the power of the motor to each guide roller of the division guide roller group are provided for each of the division guide roller groups, and the rated output of the motor Is generally adapted to the power required to drive or brake the group guide roller group provided with the motor so as to satisfy predetermined acceleration conditions and deceleration conditions, and the total rated output of each motor The divided guide roller groups are adapted to the power required for driving or braking so as to satisfy predetermined acceleration conditions and deceleration conditions at the same time, and adjacent to the divided guide roller groups. For each of the transmission systems of the minute guide roller group, a tuning transmission device is provided for connecting the transmission systems of the adjacent divided guide roller groups, and one of the motors is a main motor and the other is an auxiliary motor. A main motor control device that controls the speed of the main motor based on a speed setting value is provided, and an auxiliary motor control device that controls the torque of each of the auxiliary motors is provided for each of the auxiliary motors. The auxiliary motor should output based on the relational expression expressed by a linear function with the torque output from the independent variable as the independent variable and the torque to be output from the auxiliary motor as the dependent variable, and the detected torque value output from the main motor. The torque can be calculated and commanded every moment.

  According to the present invention, the guide roller group is divided into a plurality of divided guide roller groups, and a transmission system capable of transmitting a motor for each divided guide roller group and the power of the motor to each guide roller of the divided guide roller group. The rated output of the motor is roughly adapted to the power required to drive or brake the group guide roller group provided with the motor so as to satisfy predetermined acceleration conditions and deceleration conditions, and the rated output of each motor The total length of each guide roller can be increased by widening the belt-like sheet by adapting to the power required to drive or brake a plurality of segmented guide roller groups so as to satisfy predetermined acceleration and deceleration conditions at the same time. Even if the number of guide rollers increases and the size of the guide roller group increases, it is not necessary to use a large motor with an unnecessarily large rated output or a large transmission device with a large transmission horsepower. In addition, the installation space of the motor and transmission system in the belt-shaped sheet take-up device can be greatly expanded and the sudden increase in equipment cost can be suppressed, and the moment of inertia of the motor and transmission system can be reduced to reduce waste of power. Can do. In addition, for each of the transmission systems of the adjacent division guide roller groups among the division guide roller groups, a tuning transmission device that connects the transmission systems of the adjacent division guide roller groups is provided, and one of the motors Are provided as main motors and the other as auxiliary motors. A main motor control device for controlling the speed of the main motor based on the speed setting value is provided, and an auxiliary motor control device for controlling the torque of each auxiliary motor is provided for each auxiliary motor. The control device is based on a relational expression represented by a linear function in which the torque output from the main motor is an independent variable and the torque to be output from the auxiliary motor is a dependent variable, and the detected value of the torque output from the main motor. The torque that the auxiliary motor should output can be calculated and commanded every moment, so that the driving speed of the group guide roller group driven by the main motor and the auxiliary motor The driving speed of the group guide roller group to be driven can be surely synchronized through the transmission for synchronization, and the auxiliary motor can be controlled regardless of the rotation speed of the main motor, and the constants in the relational expression can be set to appropriate values. By setting, the torque transmitted by the tuning transmission can always be kept below a certain value. Therefore, even if the torque which can be transmitted is small, the tuning transmission device can reliably maintain the rotation synchronization between the section guide roller groups to which a very large inertia force acts. In addition, it is not necessary to use a speed control device with very small speed resolution and good control accuracy as an auxiliary motor control device. Further, since the rotation of the main motor and the auxiliary motor is mechanically transmitted to the respective guide rollers of the corresponding divided guide roll group through the corresponding transmission system, the guide rollers belonging to the same divided guide roller group are guided by each other. The transmission system can be configured so that there is no great difference in the length of the transmission path to the rollers, and all the guide rollers of the guide roller group can be kept small in error in the circumferential speed generated between them. It can be reliably linked. Therefore, even if the belt-like sheet winding device is enlarged and the inertial force of the guide roller group is increased, the surface of the belt-like sheet is scratched by the guide roller without using a high-precision and complicated speed control system. Can be prevented.

  When the tuning transmission device is composed of a timing belt that connects the transmission shafts included in the individual transmission systems of the adjacent division guide roller groups, the belt slips or backlashes between the transmission systems of the adjacent division guide roller groups. Can be substantially eliminated, so that each guide roller can be linked more accurately and reliably.

  The belt-like sheet take-up device includes a slitter that divides the belt-like sheet into a plurality of strips, and when the belt-like sheet divided by the slitter is taken up at the take-up position, the strip-like sheet meanders between the slitter and the take-up position. It is desirable to arrange the slitter as close as possible to the winding position so that the end face of the winding roll is prevented from becoming uneven, and several guide rollers are arranged in a limited space near the slitter to shorten the distance between them. In that case, the section guide roller group including the slitter in the belt-like sheet guide path is set to the section guide roller group driven by the main motor, thereby obtaining the reference of the winding speed. The belt-shaped sheet supply speed to the winding position can be maintained at the set accurate speed. Even if the belt-like sheet winding device is enlarged and the distance between the section guide roller group near the slitter and the section guide roller group disposed near the original roll is increased, both section guide roller groups Each guide roller can be reliably interlocked.

It is explanatory drawing of the guide roller group drive device of the strip | belt-shaped sheet winding apparatus which concerns on one Example of this invention. It is a schematic side view of the strip | belt-shaped sheet winding apparatus to which the guide roller group drive device shown in FIG. 1 is applied. It is the diagram which showed typically the relationship between the rotation speed of the output shaft of an auxiliary motor, and a torque.

  In FIG. 1, the guide roller group driving device of the belt-like sheet winding device drives a guide roller group R comprising guide rollers r1, r2, r3, r4, r5, r6, r7, r8, r9, r10. . The guide roller group R includes a first segmented guide roller group Ra composed of guide rollers r5, r6, r7, r8, r9, r10 and a second segmented guide roller group Rb composed of guide rollers r1, r2, r3, r4. The motors M1 and M2 and the transmission systems Ta and Tb are provided for each of the division guide roller groups Ra and Rb. Between the transmission systems Ta and Tb, there is provided a tuning transmission device 1 for connecting the transmission system Ta and the transmission system Tb. The motor M1 corresponding to the first section guide roller group Ra is a main motor, The motor M2 corresponding to the second division guide roller group Rb is an auxiliary motor. A main motor control device 2 that controls the speed of the main motor M1 based on a set value of speed and an auxiliary motor control device 3 that controls the torque of the auxiliary motor M2 are provided. In this embodiment, three-phase induction motors for vector control are adopted as the main motor M1 and the auxiliary motor M2.

  The transmission system Ta can simultaneously transmit the rotation of the output shaft of the main motor M1 to the respective guide rollers r5 to r10 of the first section guide roller group Ra, and the transmission system Tb can transmit the rotation of the output shaft of the auxiliary motor M2. The rotation can be transmitted simultaneously to the respective guide rollers r1 to r4 of the second divided guide roller group Ra.

  The rated outputs P1 and P2 of the main motor M1 and the auxiliary motor M2 are the power necessary for driving or braking the divided guide roller groups Ra and Rb corresponding to the motors M1 and M2 so as to satisfy predetermined acceleration and deceleration conditions. The total size (P1 + P2) of the rated output of the main motor M1 and the rated output of each auxiliary motor M2 satisfies the predetermined acceleration condition and the deceleration condition at the same time for the divided guide roller groups Ra and Rb. It is sized to match the amount of power required to drive or brake.

  For example, when the required output Pa of the main motor M1 is 54 (kw) and the required output Pb of the auxiliary motor M2 is 21.5 (kw), the rated output 55 (kw) that roughly matches the required output 54 (kw). If a motor with a rated output of 18.5 (kw) that roughly matches the required output of 21.5 (kw) is selected as the auxiliary motor M2 from among commercially available products with the motor of the main motor M1 as the main motor M1, the main motor M1 and the auxiliary motor M1 The sum (P1 + P2) of the rated output of the motor M2 is 73.5 (kw). However, it exceeds the power (Pa + Pb) = 75.5 (kw) necessary for simultaneously driving the segment guide roller group Ra and the segment guide roller group Rb so as to satisfy a predetermined acceleration condition only by the main motor M1. Therefore, a motor with a rated output of 18.5 (kw) is not appropriate as the auxiliary motor M2. Therefore, as the auxiliary motor M2, a commercially available motor having a rated output 22 (kw) which is the second largest after 18.5 (kw) is selected. Then, the sum (P1 + P2) of the rated output P1 of the main motor M1 and the rated output P2 of the auxiliary motor M2 is 77 (kw), which is necessary for driving the guide roller group R so as to satisfy a predetermined acceleration condition. Since the power (Pa + Pb = 75.5 (kw)) is exceeded, the main motor M1 with a rated output of 55 (kw) and the auxiliary motor M2 with a rated output of 22 (kw) should be adopted as motors that meet the acceleration conditions. That's fine.

  In FIG. 2, the belt-like sheet take-up device is a belt-like sheet take-up device with a slitter in this embodiment, and the belt-like sheet S is unwound from the original roll 4 during winding, and is shown by a one-dot chain line. Are guided and conveyed to the guide roller r8 via the guide rollers r1, r2, r3, r4, r5, r6, r7, and are divided by the slitter K into a plurality of strip-like sheets Sc having a required width, and are divided into the guide rollers r8. The plurality of divided strip-like sheets Sc arranged on the top are sequentially and alternately distributed to the guide roller r9 and the guide roller r10. Then, the divided strip-like sheet Sc is guided and conveyed to the winding positions arranged on the left and right via the guide rollers r9 or r10, and is wound around the core 6 via the touch roller 5 at the winding position. Becomes the take-up roll 7.

  The guide rollers r1 to r10 shown in FIG. 1 correspond to the guide rollers r1 to r10 having the same reference numerals in FIG. In FIG. 2, since the slitter K is provided on the guide roller r8, the first section guide roller group Ra shown in FIG. 1 includes the slitter K in its belt-like sheet guide path.

  The transmission system Ta is configured to be able to transmit the rotation of the output shaft of the main motor M1 to the guide rollers r5 to r10 by transmission means such as a timing belt and a transmission shaft, and the guide rollers r5 to r10 are connected to the main motor M1. According to the rotation of the output shaft, it can be rotated at a peripheral speed that matches the traveling speed of the belt-like sheet in an appropriate direction as in the conventional case. The transmission system Tb is configured to transmit the rotation of the output shaft of the auxiliary motor M2 to the guide rollers r1 to r4 by transmission means such as a timing belt and a transmission shaft (not shown). According to the rotation of the output shaft of the motor M2, it is possible to rotate at a peripheral speed that matches the traveling speed of the belt-like sheet in the appropriate direction as in the conventional case.

  The tuning transmission device 1 includes a timing belt 10 that connects a transmission shaft 8 included in the transmission system Ta and a transmission shaft 9 included in the transmission system Tb. The transmission shaft 8 can reliably rotate in conjunction with the guide roller group Ra, and the transmission shaft 9 can reliably rotate in conjunction with the guide roller group Rb. The timing belt 10 is a belt having teeth at equal intervals on the back side, and is hung on a timing pulley 11 fixed to the transmission shaft 8 and a timing pulley 12 fixed to the transmission shaft 9. The timing pulleys 11 and 12 are gear-like pulleys having grooves for receiving the teeth of the timing belt 12 on the outer peripheral surface thereof. The transmission shaft 8 may transmit power only to the transmission shaft 9 as long as it receives power from the main motor M1. Similarly, the transmission shaft 9 receives power from the auxiliary motor M2. If it is a thing, the power may be transmitted only to the transmission shaft 8.

  The main motor control device 2 includes a known speed setting unit 13 that outputs a target value of the rotational speed of the main motor M1 based on the set values of the required traveling speed, acceleration, and deceleration of the belt-like sheet, and the rotational speed of the main motor M1. A comparison unit 14 that outputs an operation signal by comparing with the detection signal, an amplification unit 15 that outputs a torque command signal based on the operation signal, and a torque command signal from the amplification unit 15 to receive the torque command signal and rotate at a set speed. It comprises a known inverter 16 that supplies power to the motor M1.

  The auxiliary motor control device 3 detects the torque Tm1 output from the main motor M1, the relational expression Tm2 = k × Tm1 + c, and the detected value of the torque Tm1 output from the main motor M1. From the required torque calculation unit 18 that calculates and commands the torque Tm2 to be output from time to time, a setting unit 19 that can change the set values of the constants k and c as necessary, The inverter 20 receives a required torque command signal and supplies electric power to the auxiliary motor M2 based on the required torque command signal. In the inverter 20, the rotational speed-torque characteristic of the auxiliary motor M2 is as shown in FIG. 3, that is, a characteristic in which a substantially constant torque Tm2 is output from the output shaft with respect to the rotational speed n2 of the output shaft. Electric power can be supplied to the auxiliary motor M2 so that torque according to the torque command signal is output from the output shaft. In this embodiment, the inverter 20 itself is a commercial product and is set so as to obtain the characteristics as shown in FIG.

  The torque detector 17 does not have to detect torque based on the torque command signal to the main motor M1 in the main motor control device 2, and for example, the output shaft of the first main motor M1 or the first shaft A detection signal may be obtained from another known torque detector, such as one that detects torsion applied to the transmission shaft of the transmission system with a strain gauge.

  The guide roller group driving device shown in FIG. 1 starts driving the guide roller group R in order to convey the belt-like sheet by the guide roller group R when winding is started in the belt-like sheet winding device. When the winding is stopped, the driving of the guide roller group R is stopped. While the guide roller group R is being driven, the main motor control device 2, the auxiliary motor control device 3, the main motor M1, and the auxiliary motor M2 operate, and the main motor control device 2 determines the set value of the setting unit 13 as in the prior art. Based on the detected value of the rotational speed of the main motor M1, the speed of the main motor M1 is controlled so that the rotational speed of the output shaft of the main motor M1 becomes a set value. Further, the auxiliary motor control device 3 calculates the torque Tm2 to be output from the auxiliary motor M2 from time to time based on the relational expression given to the calculation unit 18 and the detected value of the torque Tm1 output from the main motor M1. By commanding to 20, the auxiliary motor M2 is torque controlled. The main motor M1 drives the segment guide roller group Ra via the transmission system Ta, and the auxiliary motor M2 drives the segment guide roller group Rb via the transmission system Tb. Then, the guide rollers r5 to r10 of the section guide roller group Ra and the guide rollers r1 to r4 of the section guide roller group Rb rotate in synchronism with each other through the tuning transmission 1, and the guide rollers r1 to r10 are converged. The belt can be rotated in conjunction with the belt-like sheet traveling speed.

  Here, it is assumed that when the running speed of the belt-like sheet is maximum, the rotation speed of the main motor M1 is n1 (rpm) and the rotation speed of the auxiliary motor M2 is n2 (rpm). In this case, if the torque transmitted by the tuning transmission device 1 is T3, the torque T3 can be expressed by the following equation.

  Further, when the relationship between the torque of the main motor M1 and the torque of the auxiliary motor M2 is expressed by the following equation, the torque T3 transmitted by the tuning transmission device 1 becomes zero. Therefore, it is preferable to set the relational expression of the calculation unit 18 in advance by changing the constant k and the constant c in the setting unit 19 of the auxiliary motor control device 3 in advance.

  In a winding device that winds a belt-like sheet such as a plastic film or paper, the load torque acting from the outside due to the friction torque in the bearing portion of the guide roller group or the belt-like sheet tension is usually in the inertial force of the guide roller group. In this case, the auxiliary motor control device 3 sets Tm2 = k × Tm1 as a relational expression given to the calculation unit 18 and sets only the constant k in the setting unit 19. And simplify it. The constant k can be obtained by calculation, but the optimum value may be obtained by trial and error by changing the setting value of the setting unit 19 in various ways. When a commercially available transmission device is used as the tuning transmission device 1, the power actually transmitted is usually smaller than the power allowed for the transmission device, so that there is some margin in the power that can be transmitted. In that case, the set value of the setting unit 19 may be increased or decreased as long as the power transmitted through the tuning transmission device 1 does not exceed the power that can be transmitted by the tuning transmission device 1.

  The embodiment in the case where the guide roller group is divided into two divided guide roller groups has been described above. In the present invention, the guide roller group is divided into three or more divided guide roller groups as required. It can also be adopted. Further, the number of guide rollers constituting the guide roller group and the division guide roller group is not limited to the above-described embodiment.

M1 main motor M2 auxiliary motor R guide roller group Ra first guide roller group Rb second guide roller group Ta first transmission system Tb first transmission system 1 transmission gear for tuning 2 main motor control device 3 auxiliary motor control Device 8 Transmission shaft 9 Transmission shaft 10 Timing belt

Claims (4)

  A guide roller group driving device of a belt-shaped sheet winding device that drives a guide roller group for guiding and conveying a belt-shaped sheet rewound from an original roll to a winding position, wherein the guide roller group includes a plurality of guide roller groups. Each of the divided guide roller groups is provided with a motor and a transmission system capable of transmitting the power of the motor to each guide roller of the divided guide roller group, and the rated output of the motor is The group guide roller group provided with the motor is generally adapted to the power necessary for driving or braking so as to satisfy predetermined acceleration conditions and deceleration conditions, and the total rated output of each motor is the plurality of section guide rollers. The grouping guide roller is adapted to the power required for driving or braking the group so as to satisfy predetermined acceleration conditions and deceleration conditions at the same time, A transmission device for connecting the transmission systems of the adjacent section guide roller groups is provided for each of the transmission systems of the second group, and one of the motors is a main motor and the other is an auxiliary motor; A main motor control device that controls the speed of the motor based on a speed setting value is provided, and an auxiliary motor control device that controls the torque of each of the auxiliary motors is provided for each auxiliary motor. The auxiliary motor control devices are output by the main motor, respectively. Torque to be output by the auxiliary motor based on a relational expression expressed by a linear function with the torque to be output as an independent variable and the torque to be output by the auxiliary motor as a dependent variable and the detected value of the torque output from the main motor. A guide roller group driving device for a belt-like sheet winding device, characterized by being able to calculate and command every moment.   2. The guide roller group driving device of the belt-like sheet winding device according to claim 1, wherein the tuning transmission device includes a timing belt that connects transmission shafts included in individual transmission systems of the adjacent divided guide roller groups.   The belt-like sheet winding device according to claim 1 or 2, wherein the belt-like sheet winding device includes a slitter that divides the belt-like sheet into a plurality of strips, and winds the belt-like sheet divided by the slitter at a winding position. Guide roller group driving device for sheet winding device.   4. The guide roller group driving device of the belt-shaped sheet winding device according to claim 3, wherein the group guide roller group including the slitter in the belt-shaped sheet guide path is a group guide roller group driven by the main motor.

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