JP2010012686A - Method and apparatus of winding strip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively suppress slipping produced between a roller 30 and a ribbon-like body 14 contacting with the roller 30. <P>SOLUTION: An air cylinder 45 allows a press roll 47 to get near the roller 30 to press the ribbon-like body 14 contacting the roller 30 and push the ribbon-like body 14 against the roller 30 by a predetermined contact pressure, by which even if a resistance reverse to a running direction which is imparted from the roller 30 to the ribbon-like body 14 increases, an increase in a friction resistance between the roller 30 and the ribbon-like body 14 contacting the roller 30 suppresses effectively the slipping produced between them. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

    The present invention relates to a method and an apparatus for winding a belt-like body that winds the belt-like body around a rotating body to be wound while applying a resistance in a direction opposite to the traveling direction from the roller to the belt-like body.

As a conventional method and apparatus for winding a belt-like body, for example, the one described in Patent Document 1 below is known.
JP 2006-175770 A

  This is because when a belt-like body is supplied to a body to be wound that is rotating around an axis by a rotational driving force from a driving means and the belt-like body is wound around the body to be wound a plurality of times, By controlling the rotation of the roller that travels while the belt-like body before being supplied to the body is in contact with a part of the outer circumference (substantially half-circumference) by means of tension applying means, resistance from the roller to the belt-like body is given in the reverse direction. Then, the belt-like body stretched between the wound body and the roller is applied while adjusting the tension.

    However, in such a conventional belt-like body winding method and apparatus, since the belt-like body travels while contacting a part of the outer periphery of the roller, the frictional resistance between the belt-like body and the roller is As a result, if the resistance applied from the roller to the strip is increased to increase the tension of the strip, the tension easily exceeds the frictional resistance, resulting in a gap between the strip and the roller. As a result, there was a problem that the tension of the belt-like body could only be increased to some extent.

  An object of this invention is to provide the winding method and apparatus of a strip | belt body which can suppress effectively the slip which arises between a roller and the strip | belt body which is driving | running while contacting this roller.

    The first object is to supply a belt-like body to the wound body rotating around the axis by the rotational driving force from the driving means and wind the belt-like body around the wound body a plurality of times. When attaching, by applying a resistance in the direction opposite to the traveling direction by means of tension applying means to the belt from the roller running while the belt before supply to the wound body is in contact with a part of the outer periphery, While the tension is applied to the strip stretched between the wound body and the roller while adjusting the tension, the press roll is brought close to the roller by pressing means, and the strip in contact with the roller is moved by the press roll. By pressing, the belt can be achieved by a method of winding the belt that presses the belt against the roller with a predetermined contact pressure.

  Second, by applying a rotational driving force to the wound body and rotating it around the axis, the driving means for winding the supplied belt-like body around the wound body a plurality of times, and the wound body A roller that travels while the belt-like body before feeding is in contact with a part of the outer periphery, and a resistance from the roller to the belt-like body in a direction opposite to the running direction is provided, and is stretched between the wound body and the roller. A tension applying means capable of applying tension to the belt-shaped body, a pressing roll capable of approaching and separating from the roller, and a pressing roller for pressing the belt-shaped body contacting the roller by bringing the pressing roll closer to the roller. This can be achieved by a belt-like body winding device provided with pressing means for pressing the belt-like body against the roller with a predetermined contact pressure.

  In this invention, the pressing roll is brought close to the roller and the belt-shaped body contacting the roller is pressed by the pressing roll so that the belt-shaped body is pressed against the roller with a predetermined contact pressure. The frictional resistance generated between the belt-like body and the roller increases, so that even if the tension of the belt-like body stretched between the roller and the wound body is increased, the tension reduces the frictional resistance. It becomes difficult to exceed, and slippage between the roller and the belt can be effectively suppressed.

  Here, even when the tension of the belt-like body is the maximum value, it may be possible to press the belt-like body against the roller at the time of winding with a large constant contact pressure that does not cause slippage between the roller and the belt-like body. Then, when the tension of the belt-like body is a small value, the pressing force against the belt-like body becomes excessive, and the belt-like body is pushed in the longitudinal direction and the width direction when passing between the roller and the pressing roll. As a result, it may be difficult to wind the belt-like body around the wound body with a desired tension.

  However, as described in claim 3, if the contact pressure of the belt with respect to the roller is increased or decreased following the increase or decrease of the tension of the belt stretched between the wound body and the roller, the belt It is possible to prevent the body from being pressed against the roller with an excessive contact pressure, whereby the belt-like body can be easily wound around the wound body with a desired tension. In addition, the contact pressure between the belt-like body and the roller can be easily set to an appropriate value, whereby the slip generated between the roller and the belt-like body can be strongly suppressed.

  According to the fourth aspect of the present invention, it is possible to accurately control the contact pressure of the belt-like body while being simple and inexpensive. Further, even if there is a step at the joint of the belt-like body, the presser roll is hardly lifted up by the step, and the presser roll is separated from the belt-like body when the belt-like body is not wound. By doing this, it is possible to prevent the belt-like body from being pressed against the roller and the pressing roll. According to the fifth aspect of the present invention, the driving force of the air cylinder becomes almost the pressing force by the pressing roll, and the frictional resistance between the roller and the strip can be effectively increased.

Embodiment 1 of the present invention will be described below with reference to the drawings.
In FIGS. 1, 2, and 3, 11 is a forming drum that forms a belt-tread band, for example, a cylindrical wound member that can be expanded and contracted in diameter and is rotatable, and this forming drum 11 includes an electric motor, Driving means such as a hydraulic motor, here an electric motor 12, is connected, and when a rotational driving force is applied from the electric motor 12 to the forming drum 11, the forming drum 11 is driven and rotated around a horizontal axis line to a certain large size. It rotates at a constant speed with torque. In the present invention, a tire intermediate body having a substantially toroidal shape or a rigid core having the same outer surface shape as the inner surface of the product tire may be used as the wound body.

  Reference numeral 14 denotes a ribbon-like body having a narrow and constant width as a belt-like body unwound from a roll (not shown) installed behind the forming drum 11. The ribbon-like body 14 is bent in a wave shape. It is constituted by rubber coating a reinforcing cord made of one or a small number of non-extensible materials, for example, steel cords. The ribbon-like body 14 is taken up by the molding drum 11 so that it travels toward the molding drum 11 and is supplied to the outer periphery thereof. At this time, the ribbon-like body 14 is pressed by the pressing roller 15. It is wound around a rotating forming drum 11 while being rotated. The belt-like body may be composed of a narrow band-like body having a small number of linearly extending organic fiber cords, for example, nylon cords coated with rubber.

  18 is a movable base installed in the middle of the travel path of the ribbon-like body 14 on the upstream side of the forming drum 11, a screw block 19 on the front lower surface of the movable base 18, and a guide block 20 on the rear lower surface. Are fixed respectively. Reference numeral 21 denotes a screw shaft whose both ends are rotatably supported by a fixed frame (not shown). The screw shaft 21 extends parallel to the axis of the forming drum 11. Further, the central portion of the screw shaft 21 is screwed into the screw block 19. As a result, when the screw shaft 21 is rotated by receiving a driving force from a motor (not shown), the movable base 18 is moved to the forming drum 11. Move at a constant speed in the axial direction.

  Reference numeral 23 denotes a guide rod having both ends fixed to the fixed frame, and the guide rod 23 extends in parallel to the screw shaft 21. The central portion of the guide rod 23 is slidably inserted into the guide block 20, so that the guide rod 23 is movable when the movable base 18 moves in the axial direction of the forming drum 11. Guide to move smoothly. A support plate 24 is fixed to the upper surface of the movable base 18 and extends in parallel with the ribbon-like body 14, and a guide roller 25 having flanges at both ends is rotatably supported at the front end portion of the support plate 24.

  The ribbon 14 is guided toward the forming drum 11 while being in line contact with the outer periphery of the guide roller 25 between both flanges, so that the guide roller 25 guides the movement in the width direction. As a result, when the forming drum 11 rotates and the traveling ribbon-like body 14 is supplied to the forming drum 11, the movable base 18 moves in the axial direction at a constant speed by the rotation of the screw shaft 21. The ribbon-like body 14 is gradually shifted in the axial direction by the guide roller 25 and wound around the forming drum 11 a plurality of times in a spiral manner. In the present invention, the ribbon-like body 14 is wound around the forming drum 11 substantially in the circumferential direction by an angle slightly less than one round, and then the ribbon-like body 14 is wound in the axial direction obliquely by the remaining angle. The ribbon-like body 14 may be wound around the forming drum 11 a plurality of times by repeating the operation of shifting the ribbon-like body 14 by the substantial width a plurality of times.

  28 is an induction motor installed upstream of the forming drum 11, specifically, behind the guide roller 25, and this induction motor 28 is attached to the upper surface of the movable table 18. The induction motor 28 has a rotating shaft 29, and a cylindrical roller 30 having an axis parallel to the axis of the forming drum 11 is fixed to the center of the rotating shaft 29. As a result, the roller 30 is installed on the upstream side of the forming drum 11.

  31 and 32 are guide rollers installed slightly below and immediately before and after the roller 30, respectively. These guide rollers 31 and 32 extend in parallel to the roller 30 and their base ends rotate to the support plate 24. Supported as possible. The ribbon-like body 14 on the upstream side of the forming drum 11 is wound around the guide roller 32, the roller 30 and the guide roller 31 in this order. As a result, the ribbon-like body 14 before being supplied to the forming drum 11 is a roller. In this case, the vehicle travels while making contact with a part of the outer periphery of the roller 30, and in this case, contacting the outer periphery of the roller 30 only approximately half of the periphery, and the slip between the ribbon-like body 14 and the roller 30 is regulated to some extent.

  Here, a part of the outer periphery of the roller 30 means that it is not the entire circumference (one or more rounds), and includes a case where it is larger than a substantially half circumference as well as a case where it is smaller than a substantially half circumference. 35 is an inverter that performs vector control by outputting a frequency signal to the induction motor 28. When the frequency signal from the inverter 35 is input to the induction motor 28, the rotary shaft 29 and the roller 30 of the induction motor 28 are provided. Rotates at a rotation speed corresponding to the frequency signal, and the rotation direction of the roller 30 at this time is opposite to the traveling direction of the ribbon-like body.

  Here, since the force in the running direction of the ribbon-like body 14 is significantly larger than the tangential force generated on the outer periphery of the roller 30 due to the output torque of the induction motor 28, the induction motor 28 moves from the ribbon-like body 14 in the direction opposite to the rotational direction. On the other hand, the induction motor 28 and the roller 30 give a resistance in the direction opposite to the running direction to the ribbon-like body 14, but the value of this resistance is the value of the frequency signal. Can be easily controlled to an arbitrary value by changing the output torque of the induction motor 28.

  When resistance is applied from the roller 30 to the ribbon-like body 14 in this way, a predetermined tension is applied to the ribbon-like body 14 stretched between the roller 30 and the forming drum 11, that is, the ribbon-like body 14 at the time of winding. However, the tension value can be easily adjusted to an arbitrary value by changing the value of the frequency signal from the inverter 35 as described above. Here, the above-described tension is a tensile force in the longitudinal direction that acts on the entire ribbon-like body 14, and its unit is N.

  Reference numeral 38 denotes an encoder. The encoder 38 is fixed to the support plate 24 and is connected to the roller 30 through the rotating shaft 29 to detect the number of rotations of the roller 30. 41 is a controller that outputs a control signal to the inverter 35. When a control signal is input from the controller 41 to the inverter 35, the inverter 35 sends a frequency signal having a value corresponding to the control signal to the induction motor 28. Output. The detection result detected by the encoder 38 is input to the controller 41 as a feedback signal, and the value of the control signal is controlled by the feedback signal.

  The induction motor 28, the inverter 35, the encoder 38, and the controller 41 as described above give a predetermined resistance in the direction opposite to the traveling direction from the roller 30 to the ribbon-like body 14 by controlling the rotation of the roller 30, and forming A tension applying means 42 that can be applied while adjusting the tension to the ribbon-like body 14 stretched between the drum 11 and the roller 30 is configured. Here, by making the rotation direction of the roller 30 the same as the rotation direction of the forming drum 11 and making the peripheral speed smaller than the peripheral speed of the forming drum 11, resistance is applied to the ribbon-like body 14 from the roller 30. Thus, the tension in the ribbon-like body 14 may be adjusted.

  In this embodiment, the tension of the ribbon-like body 14 is adjusted by rotating the forming drum 11 at a constant large torque at a constant speed and variably controlling the output torque of the roller 30. In the above, the peripheral speed (rotational speed) of at least one of the forming drum and the roller is controlled, and a resistance in the direction opposite to the traveling direction is applied from the roller to the belt-like body based on the difference between these speeds. May be adjusted. In addition, the roller can be freely rotated and a braking force is applied to the roller while changing the value, thereby applying a resistance in the direction opposite to the traveling direction from the roller to the belt. May be adjusted.

  Reference numeral 45 denotes an air cylinder as a pressing means extending in the vertical direction and disposed immediately above the roller 30. The air cylinder 45 is supported by the movable base 18, and the piston rod 46 has a tip on the axis of the roller 30. A pressing roll 47 having a parallel axis and capable of approaching and separating from the roller 30 is rotatably connected via a bracket 48. The cylinder case 51 of the air cylinder 45 is divided into two cylinder compartments 53a and 53b by a piston 52 housed in the cylinder case 51, and these cylinder compartments 53a and 53b are switched via air passages 54a and 54b. Connected to valve 55.

  56 is an air source composed of, for example, an air pump, an accumulator or the like, and this air source 56 is connected to the switching valve 55 via an air passage 57. When air is supplied from the air source 56 to the cylinder compartment 53a or 53b through the air passage 57 and the air passage 54a or 54b, the piston rod 46 protrudes or retracts. At this time, the piston rod 46 is pressed. Along with the roll 47, the axis of the roller 30 and the axis of the pressing roll 47 are connected, and the roller 30 approaches and separates from the roller 30 while moving substantially parallel to a straight line perpendicular to both axes.

  Here, when air is supplied from the air source 56 to the aforementioned cylinder compartment 53a, the piston rod 46 protrudes, and the pressing roll 47 approaches the roller 30 and is in contact with the roller 30. Is pressed toward the roller 30. At this time, the ribbon-like body 14 is pressed against the roller 30 by the pressing roll 47 with a predetermined contact pressure corresponding to the air pressure supplied to the air cylinder 45, and as a result, the ribbon-like body 14 starts and ends with each other. Even if there is a step in the joint, the presser roll 47 is hardly lifted up by the step.

  On the other hand, when the switching valve 55 is switched and air is supplied to the cylinder chamber 53b, the piston rod 46 is retracted and the pressing roll 47 is separated from the roller 30. When the pressing roll 47 is separated from the roller 30 in this way, a wide space is formed between them, and the ribbon-shaped body 14 can be easily replaced, and the ribbon-shaped body 14 is released from the pressing roll 47. When the ribbon-shaped body 14 is not wound, the pressure-bonding between the ribbon-shaped body 14, the pressing roll 47, and the roller 30 is prevented.

  Here, when the tension of the ribbon-like body 14 stretched between the roller 30 and the forming drum 11 is increased, the resistance in the direction opposite to the traveling direction applied from the roller 30 to the ribbon-like body 14 is increased. Although the rotation of the roller 30 is controlled so that the sliding between the ribbon-like body 14 and the roller 30 is regulated to some extent as described above, the tension of the ribbon-like body 14 is controlled by the roller 30 and the ribbon-like body. If the frictional resistance between the two is exceeded, slip occurs between them.

  For this reason, in this embodiment, the ribbon-shaped body 14 is pressed by pressing the ribbon-shaped body 14 that is in contact with the roller 30 by causing the press roll 47 to approach the roller 30 by the air cylinder 45 as described above. The roller 30 is pressed with a predetermined contact pressure. This increases the frictional resistance between the ribbon-like body 14 and the roller 30, and as a result, even if the tension of the ribbon-like body 14 between the roller 30 and the forming drum 11 is increased as described above, The reinforcing cord may extend too much before the tension exceeds the frictional resistance, or the ribbon-like body 14 may break, so it becomes difficult for the tension to exceed the frictional resistance, and the roller 30 and the ribbon-like body 14 Slip generated between them can be effectively suppressed.

  Here, even when the tension of the ribbon-like body 14 is at the maximum value, the ribbon-like body 14 is wound around the roller 30 when winding the ribbon-like body 14 with a large constant contact pressure that does not cause slippage between the roller 30 and the ribbon-like body 14. It is conceivable to press, but in this way, when the tension of the ribbon-like body 14 is a small value, the pressing force against the ribbon-like body 14 becomes excessive, and a ribbon-like shape is formed between the roller 30 and the pressing roll 47. When the body 14 passes, the ribbon-like body 14 is stretched in the longitudinal direction and the width direction, and as a result, it becomes difficult to wind the ribbon-like body 14 around the forming drum 11 with a desired tension. There is a risk that.

  Therefore, in this embodiment, the air pressure supplied to the air cylinder 45, here the cylinder compartment 53a, is controlled in the middle of the air passage 57 by a pressure signal from the controller 41, for example, via an electromagnetic proportional pressure control valve 60. In accordance with the increase or decrease of the tension of the ribbon-like body 14 between the forming drum 11 and the roller 30, the contact pressure of the ribbon-like body 14 to the roller 30 is increased or decreased, that is, when the former increases, the latter is also increased. On the other hand, when the former decreases, the latter also decreases.

  The contact pressure at this time is such that the frictional resistance generated between the ribbon 14 and the roller 30 by the contact pressure is slightly larger than the tension of the ribbon 14 between the forming drum 11 and the roller 30. Control to the value Thereby, while avoiding the situation where the ribbon-like body 14 is extended, the ribbon-like body 14 can be easily wound around the forming drum 11 with a desired tension, and the contact pressure between the ribbon-like body 14 and the roller 30 can be easily and appropriately set. Therefore, the slip generated between the ribbon 14 and the roller 30 can be strongly suppressed.

  For example, when the resistance applied from the roller 30 to the ribbon-like body 14 is a very small value, that is, the tension is a very small value, a pressure signal corresponding to the control signal is sent from the controller 41 to the electromagnetic proportional pressure control valve 60. And the contact pressure of the ribbon-like body 14 with respect to the roller 30 is reduced by controlling the air pressure supplied to the cylinder compartment 53a by the electromagnetic proportional pressure control valve 60 to be small. Following the rotation control of the roller 30 by 42, the contact pressure of the ribbon 14 on the roller 30 is changed to a small value.

  On the other hand, when the resistance applied from the roller 30 to the ribbon-like body 14 is a considerably large value, that is, the tension is a considerably large value, the air pressure supplied to the cylinder compartment 53a by the electromagnetic proportional pressure control valve 60 is large. In this case, the contact pressure of the ribbon-like body 14 with respect to the roller 30 is increased. Here, the contact pressure of the ribbon-like body 14 is increased by following the rotation control of the roller 30 by the tension applying means 42. Change.

  As a whole, the controller 41 and the electromagnetic proportional pressure control valve 60 described above control the pressure of the air supplied to the air cylinder 45 to follow the increase and decrease of the tension of the ribbon-like body 14, and the ribbon-like body with respect to the roller 30. The control means 61 which can increase / decrease 14 contact pressure, ie, the pressure control mechanism, is comprised. In this embodiment, the controller 41 is shared by the tension applying means 42 and the control means 61.

  In this embodiment, the air cylinder 45 is used as the pressing means. However, in this invention, a compression spring that presses the pressing roll against the roller with a constant urging force may be used as the pressing means. Further, as the pressing means, an arm swingable around the base end portion and a weight fixed to the tip end portion of the arm may be used. In this case, the pressing roll is attached to the tip end portion of the arm. If the roller is supported so as to be rotatable, the pressing roll can be pressed against the roller with a constant force by the weight of the weight.

  Further, if the compression amount of the compression spring as described above is adjusted by a control means comprising a motor and a screw shaft that is rotated by the motor and moves in the axial direction, it follows the increase and decrease of the tension of the belt-like body. It is also possible to increase or decrease the contact pressure of the belt-like body with respect to the roller. Furthermore, as described above, if the moving direction of the piston rod 46 of the air cylinder 45 is substantially parallel to the straight line connecting the axis of the roller 30 and the axis of the pressing roll 47, the driving force of the air cylinder 45 is substantially reduced. As a result, the frictional resistance generated between the roller 30 and the ribbon-like body 14 can be effectively increased.

Next, the operation of the first embodiment will be described.
Now, the forming drum 11 receives the rotational driving force from the electric motor 12 and rotates around the axis, so that the ribbon-like body 14 unrolled from the roll and traveling toward the forming drum 11 is taken up, while the screw shaft It is assumed that the ribbon-like body 14 is spirally wound around the forming drum 11 by moving the movable base 18 and the guide roller 25 at a constant speed in the axial direction of the forming drum 11 by the rotation of 21.

  At this time, the ribbon-like body 14 immediately before being supplied to the forming drum 11 is wound around the roller 30 fixed to the rotating shaft 29 of the induction motor 28 while making substantially half-circular contact, and the output torque of the induction motor 28 is tensioned. By controlling with the frequency signal output from the inverter 35 of the applying means 42, the roller 30 is applied with a predetermined resistance (braking force) in the direction opposite to the running direction from the roller 30. The tension of the ribbon-like body 14 between the forming drum 11, that is, the tension of the ribbon-like body 14 during winding is adjusted to a predetermined value.

  Here, when the tension of the ribbon-like body 14 stretched between the roller 30 and the forming drum 11 is increased, slip occurs between the roller 30 and the ribbon-like body 14 in contact with the roller 30. Therefore, in this embodiment, the ribbon-like body 14 is pressed against the roller 30 with a predetermined contact pressure by pressing the ribbon-like body 14 by causing the pressing roll 47 to approach the roller 30 by the air cylinder 45. Yes. As a result, the frictional resistance between the roller 30 and the ribbon-like body 14 is increased, and the slip generated between them is effectively suppressed, whereby the ribbon-like body between the roller 30 and the forming drum 11 is suppressed. The tension of 14 can be increased easily.

  At this time, the electromagnetic proportional pressure control valve 60 is controlled by the pressure signal from the controller 41 to control the air pressure supplied to the air cylinder 45, and the tension of the ribbon-like body 14 between the forming drum 11 and the roller 30 is controlled. Following the increase / decrease, the contact pressure of the ribbon-like body 14 is increased / decreased. As a result, the ribbon-like body 14 can be easily wound around the forming drum 11 with a desired tension, and the contact pressure between the ribbon-like body 14 and the roller 30 can be easily set to an appropriate value. Slip generated between the body 14 and the roller 30 can be strongly suppressed.

  In this way, when the ribbon-like body 14 is wound around the forming drum 11 a plurality of times and a belt reinforcing layer is formed, a plurality of belt plies are wound around the belt reinforcing layer one after another to form a belt layer. After that, a tread rubber is wound around the outer side of the belt layer to form a belt tread band.

    In the above-described embodiment, the guide roller 25, the induction motor 28, the roller 30, the encoder 38, the air cylinder 45, and the pressing roll 47 are provided on the movable base 18 that moves in the axial direction of the forming drum 11. In the present invention, only the guide roller may be provided on the movable base, and the induction motor, the roller, the encoder, the air cylinder, and the pressing roll may be provided on the fixed base that is stationary behind the movable base.

  The present invention can be applied to an industrial field in which a belt is wound around a rotating body to be wound while imparting resistance in a direction opposite to the traveling direction from the roller to the belt.

It is a top view which shows Embodiment 1 of this invention. It is the front view. It is a block diagram which shows a control circuit.

Explanation of symbols

11 ... Wrap body 12 ... Driving means
14 ... Strip 30 ... Roller
42 ... Tensioning means 45 ... Pressing means (air cylinder)
46 ... Piston rod 47 ... Presser roll
61 ... Control means

Claims (5)

    When the belt-like body is supplied to the wound body rotating around the axis by the rotational driving force from the driving means and the belt-like body is wound around the wound body a plurality of times, the supply to the wound body By applying a resistance in the direction opposite to the running direction to the belt-like body by a tension applying means from the roller running while the previous belt-like body is in contact with a part of the outer periphery, the belt-like body is placed between the wound body and the roller. While applying tension to the stretched belt-like body while adjusting the tension, the belt is brought into contact with the roller by pressing means, and the belt-like body that is in contact with the roller is pressed by the pressure roller, so that the belt-like body is made into a roller. A method for winding a belt-like body, wherein the belt-like body is pressed with a predetermined contact pressure.     By applying a rotational driving force to the wound body and rotating it around the axis, driving means for winding the supplied belt-like body around the wound body a plurality of times, and before the supply to the wound body A roller that travels while the belt-like body is in contact with a part of the outer periphery, and a belt-like body stretched between the roll body and the roller by applying a resistance in the direction opposite to the running direction from the roller to the belt-like body. Tension applying means that can be applied while adjusting the tension, a pressing roll that can be moved toward and away from the roller, and a belt that is in contact with the roller by pressing the pressing roll close to the roller and pressing the belt with the pressing roll And a pressing means for pressing the belt-like body against the roller with a predetermined contact pressure.     The belt-like body winding device according to claim 2, further comprising a control unit that increases or decreases the contact pressure of the belt-like body with respect to the roll following the increase and decrease of the tension of the belt-like body.     4. The belt-like body according to claim 3, wherein the pressing means is composed of an air cylinder in which a piston rod is connected to a pressure roll, and the control means is composed of a pressure control mechanism for controlling the air pressure supplied to the air cylinder. Winding device.     The belt-shaped body winding device according to claim 4, wherein the moving direction of the piston rod of the air cylinder is substantially parallel to a straight line connecting the axis of the roller and the axis of the pressing roll.

Images