JP2013522054A - Vertical metal sheet unwinding device - Google Patents

Abstract

An apparatus for rewinding a wound body made of a sheet material includes a support frame, a rotatable spindle supported by the support frame, and a plurality of cone support rollers supported by the support frame. . The rotatable spindle has a rotational axis oriented in the vertical direction and is arranged in a hollow core of a wound body of sheet material. The plurality of cone support rollers are configured to support a bottom surface of a wound body made of the sheet material, and each cone support roller has a cone shape in which one end is wide and the other end is narrow. . Each cone support roller has a rotation axis and is arranged such that each rotation axis is directed to the rotation axis of the rotatable spindle. Each cone support roller is arranged so that one end with a narrow width thereof is located opposite to the rotatable spindle.
[Selection] Figure 1

Description

This application claims priority based on US patent application Ser. No. 12 / 659,887 filed Mar. 24, 2010, the entire contents of which are incorporated herein by reference.
The present disclosure relates to an apparatus for constructing a metal building on site, and more particularly, to a rewinding apparatus for feeding a wound metal sheet to an apparatus for manufacturing a metal building panel.

  In the process of constructing a metal building, a metal sheet is roller-formed and bent into a metal building panel, and the building panels are fastened together to produce a metal building. Generally, the metal sheet has various different dimensions (thicknesses), but is manufactured, transported and stored in a state of a large diameter wound body. Therefore, the wound metal sheet must be rewound so that it can be fed to an apparatus for performing various roller forming processes.

Various apparatuses for rewinding the wound sheet material are known in related technical fields. For example, those disclosed in U.S. Pat. is there. A general form of the conventional apparatus is one that is formed so as to horizontally support a wound body made of a sheet material, that is, a rotating shaft of the wound body made of a sheet material (that is, a cylinder of the wound body). The axis) is formed so as to be oriented horizontally with respect to the vertical direction (the vertical direction is a direction substantially coincident with the direction of gravity). Conventional devices have a mandrel or shaft arranged in a horizontal direction to support the wound body from within the hollow cylindrical core of the wound body. In order to support the wound body from the lower surface at the outermost end surface of the wound body, the conventional apparatus extends its length to the width of the wound body and directs the rotation axis thereof in the horizontal direction. It has a support roller arranged in the horizontal direction.
The present inventor has found that a rotating shaft (cylindrical axis) of a wound body needs to be oriented in a substantially vertical direction for a rewinding device that can support and rewind the wound body made of a sheet material. I found it.

According to a preferred embodiment, the device for unwinding a winding body made of sheet material comprises a support frame and a rotatable spindle supported on the support frame, the winding body consisting of sheet material. And a spindle having a rotation axis oriented in a generally vertical direction, and a plurality of cone support rollers supported by the support frame. The plurality of cone support rollers are configured to support a bottom surface of a wound body made of the sheet material, and each cone support roller has a cone shape in which one end is wide and the other end is narrow. Each of the rotating shafts is oriented so that each of the rotating shafts is directed toward the rotating shaft of the rotatable spindle, and each cone support roller has a narrow end at the rotating spindle. It arrange | positions so that it may oppose.
According to another preferred embodiment, the device for unwinding the winding body may comprise an adjustable frame assembly supporting the support frame, the adjustable frame assembly comprising: It is comprised so that change control of the inclination direction of the said support frame can be carried out.

FIG. 1 shows a perspective view of one embodiment of a preferred rewinding device according to the present disclosure.

FIG. 2 is a perspective view of the rewinding device shown in FIG. 1 in a state where a wound body made of a sheet material is placed.

FIG. 3 shows a side view of a preferred embodiment of a roller assembly having a cone support roller for a preferred rewinding device according to the present disclosure.

FIG. 4 shows a perspective view of a preferred embodiment of an extensible rotating mandrel having a tensioning mechanism for a preferred rewinding device according to the present disclosure.

FIG. 5 shows a perspective view of another embodiment of a suitable rewinding device provided with an adjusting mechanism for changing the tilt direction of the rewinding device according to the present disclosure.

FIG. 6 shows a perspective view of the preferred rewinding device shown in FIG. 5 in a state in which the inclination direction is changed for transportation.

FIG. 7 shows a side sectional view of a part of the rewinding device of FIG.

FIG. 8 shows a preferred embodiment of a drive mechanism for driving a cone support roller for a rewinding device according to the present disclosure.

  FIG. 1 shows a preferred rewinding device 100 (also referred to herein as a rewinding machine) corresponding to a preferred embodiment. As shown in FIG. 1, the unwinder 110 includes a frame 102 (for example, a horizontal metal platform) and a plurality of support roller assemblies 104 supported by the frame 102. The three-dimensional body 104 includes a cone support roller 106, an outer support member 108, and an inner support member 110. The inner and outer support members 110 and 108 support the support rollers 106 through bearings as appropriate. In the embodiment of FIG. 1, four support roller assemblies 104 are provided, but one of them is hidden and cannot be seen in the figure. The unwinder 100 also has a spindle that can rotate in the center, which serves to hold a wound body of sheet material in the center on the unwinder 100. FIG. 2 shows the unwinding machine 100 in a state where a wound body 150 made of a sheet material is placed. In this figure, the wound body 150 made of a sheet material has an outer peripheral surface 152 and a hollow core 154. And an inner peripheral surface 156 in the hollow core 154.

  As can be seen by comparing FIG. 1 and FIG. 2, the rotatable spindle 109 is arranged so as to coincide with the bottom opening of the hollow core 154 of the wound body 150 made of sheet material. As shown in FIGS. 1 and 2, the dotted line B indicates the rotation axis of the rotary spindle 109, which coincides with the cylindrical axis of the wound body 150. The rotation axis B of the spindle 109 is oriented so as to be orthogonal to a horizontal plane (for example, a flat surface of the support platform as shown in the embodiment of FIGS. 1 and 2) with respect to the frame 102. When the rewinding machine 100 is used, the rotating shaft B is oriented so as to be substantially vertical along the Z direction. Here, “substantially in the vertical direction” means that the rotation axis B of the unwinder 100 is located within a range of several degrees (for example, less than 1 to 2 degrees) with respect to the direction of gravity. In other words, when the support frame 102 is horizontally oriented within a range of several degrees (for example, less than 1 to 2 degrees) with respect to “horizontal”, the rotation axis B is generally oriented in the vertical direction. It will be.

  Referring back to the embodiment of FIG. 1, the rotating spindle 109 includes a rotating platform 114 (eg, a disc body made of a metal plate), and a set of radial array members 112a and 112b supported by the rotating platform 114. A vertical shaft 116 (and a housing and a bearing) and a cap body 118 for fixing and / or guiding the radial arrangement members 112a and 112b. The rotatable spindle 109 is provided with an adjusting mechanism. According to this, several radial arrangement members 112b are moved inward and outward in the radial direction perpendicular to the rotation axis B by the two-leg opening / closing mechanism. It is movable. On the other hand, the position of the other radiation arrangement member 112a is fixed. As a suitable both-leg opening / closing mechanism, for example, the lower connecting portion of the both-leg opening / closing mechanism is connected to a vertical sleeve that slides up and down along the outer peripheral surface of the rotation shaft at the center of the spindle 109, thereby pressing the sleeve upward. When this occurs (for example, due to fluid pressure), the upper and lower connecting portions of the two-leg opening / closing mechanisms approach each other, moving the radial array member 112b outward in the radial direction, and similarly performing the reverse operation. The configuration of, can be employed. The control switch 170 can control the fluid pressure (further described below) to expand or contract the radiating array member 112b. Of course, the position of the radiating array member 112b can be controlled by a wedge-shaped mechanism instead of the two-leg opening / closing mechanism, and can be driven by a manual crank instead of the fluid pressure, as will be understood by those skilled in the art. You can also.

  As shown in FIG. 1, the radiating arrangement members 112a and 112b are preferably formed so as to have an inclined upper end, and when the wound body 150 made of a sheet material is placed on a rewinding machine. (For example, the hoist or the forklift is lowered to the unwinder 100 by the holding strap), and the inclined upper end portions of the radial array members 112a and 112b serve to guide the wound body 150 to a substantially central position. Then, the radial array members 112b (the positions thereof can be adjusted) move outwardly in cooperation, abut against the inner peripheral surface 156 of the wound body 150, and bring the wound body 150 to the center position. Since the pressure is applied, the cylindrical axis of the wound body coincides with the rotation axis B of the rotatable spindle 109. When the wound body 150 made of a sheet material has been consumed, the radial array member 112b can be reduced inward in the radial direction.

  FIG. 3 is a side sectional view of a support roller assembly 104 including an inner support member 110 that supports the support roller 106 via a bearing as appropriate, and an outer support member 108. As shown in FIG. 3, each of the cone support rollers 106 has a cone shape in which one end is wide and the other end is narrow, and each cone support roller 106 has a respective rotation axis C. These cone support rollers 106 are radially oriented with respect to the rotation axis B of the spindle whose rotation axis C is rotatable, that is, with respect to the center of the wound body 150, and are rotatable spindles. Is oriented upward by an angle θ with respect to the horizontal direction, which is a direction orthogonal to the rotation axis B of the lens. As a result, the portion of the cone support roller 106 that contacts the bottom surface of the wound body 150 is disposed substantially horizontally. By orienting the cone support roller 106 in this way, the flat bottom surface of the wound body 150 can be supported along the length of each support roller 106. Each support roller assembly 104 also has a side roller 111 with its rotation axis oriented parallel to the rotation axis B and supported by the outer support member 108, and the side roller 111 allows the winding made of sheet material to be wound. The rotating body 150 can be supported from the side surface so as not to be displaced radially outward beyond the outer end portion of the support roller 106.

  The dimensions of the cone support member 106 can be determined based on the expected dimensions of the roll of sheet material envisaged for use. A typical wound body 150 has, for example, an inner diameter of about 24 inches, an outer diameter of about 40 inches, and a height of about 36 inches. In general, the length of each cone support roller 106 should be at least as large as the difference between the inner diameter and the outer diameter of the wound body 150, ie, the length of each cone support roller 106 is At least, the sheet material wound around the wound body 150 must have the same size as the radial width. To accommodate a roll of normal sized sheet material, the cone support roller 106 has a length of about 12.3 inches and a narrow end diameter of about 2.25 inches with a wide width. The diameter of the end may be about 5.3 inches. The narrow end of the support roller 106 is positioned at a distance of about 9 inches from the rotation axis B of the rotatable spindle 109 (ie, from the cylindrical axis of the wound body 150), and the wide end of the support roller 106 is What is necessary is just to be located in the distance of about 12.3 inches from the rotating shaft B. The diameter of the wide end and the narrow end of the cone support roller 106 must be determined according to the relationship R1 / R2 = A1 / A2, as shown in FIG. Here, A1 is the diameter of the roller 106 in the portion close to the narrow end, A2 is the diameter of the roller 106 in the portion close to the wide end, and R1 is the diameter from the rotation axis B. A distance to the contact point of the roller 106 at A1, and R2 is a distance from the rotation axis B to the contact point of the roller 106 at the diameter A2. By determining each dimension of the support roller so as to satisfy this relationship, the tangential speed of the sheet material placed on the support roller 106 at any given distance from the rotation axis B is the support roller at that point. It will be guaranteed to match the tangential velocity of the surface of 106. Therefore, R1 and R2 are determined to accommodate the predetermined dimensions of the roll, and A1 is a desired value (eg, 2.25 inches sufficient to ensure the desired structural strength, eg, 2.25 inches). , 2.5 inches, 3 inches, etc.), and A2 can be calculated based on R1, R2, A1. As can be seen from FIG. 3, the angle θ is obtained from the equation: sin θ = A1 / (2 · R1) = A2 / (2 · R2). In consideration of the above description, suitable dimensions of the support roller adapted to the dimensions of other wound bodies can be determined by an expert in the technical field.

  The materials used in making the various components of the unwinder 100 and other unwinding devices described in this document may be selected based on the predetermined dimensions and weight of the wound body being applied. it can. The wound body 150 made of a sheet material can employ, for example, a galvanized steel plate, other types of steel plates, galvalume steel plates, gin potassium steel plates, aluminum plates, and other sheet materials. The thickness of the sheet material ranges from about 0.035 inches to about 0.080 inches. As noted above, a typical winding used to construct a metal building, for example, has an inner diameter of about 20 inches (ie, the hollow core 124 has a diameter of about 20 inches) and an outer diameter of about 40 inches. Inch and height is about 36 inches. The weight of such a winding is typically in the range of about 4000 to 9000 pounds, for example. The materials used to manufacture the various components of the unwinder according to the present disclosure must be selected to accommodate the weight of the winding used. For example, the frame components are made of stainless steel or aluminum alloy steel, for example, with a thickness of 0.5 to 0.75 inches, the support rollers are made of stainless steel, and the connecting rod and shaft are made of stainless steel. Or it is made from hardened steel and the bearings and gears are made from hardened steel.

  FIG. 4 shows additional details regarding the rotatable spindle 109 and its associated components. As shown in FIG. 4, the radial position of the adjustable radial array member 112b is controlled by a two-leg opening / closing mechanism. In the embodiment of FIG. 4, the first opening / closing arm 126 is pivotally connected to the inner support member 122 via a fastening member 130 (for example, a pin, a bolt, etc.) at the upper end thereof. A vertical groove is formed in the member 122. The other end portion of the first opening / closing arm 126 is movable up and down in the vertical groove portion of the radiating arrangement member 112b while being guided by the fastening member 130 passing through the opening / closing arm mounted on the vertical groove portion of the support member 122b. Yes. The second opening / closing arm 128 is pivotally connected at its upper end to the upper side of the radial arrangement member 112b via the fastening member 130, and the lower end of the second opening / closing arm 128 is, for example, a fluid. It is rotatably connected to a sleeve 124 that can be moved up and down under the control of a pressure mechanism.

  Further, as shown in FIG. 4, the rotatable spindle 109 is supported by a bearing housing 138 and a shaft 140 having a bearing housing and associated bearings, and the bottom flange 139 of the bearing housing 138 is shown in FIG. It can be mounted on a horizontal plate-like member of the frame 102 shown. Below the bearing housing 138 is disposed a fluid pressure cylinder 136 with an associated vertical fluid pressure shaft that can be moved up and down under the control of a fluid pressure control mechanism to drive the shaft 116 up and down. is there. The upper end portion of the shaft 116 is driven by a fluid pressure cylinder 136 to drive the bottom surface portion of the sleeve 124 upward via a bearing. Thereby, the entire rotatable spindle 109 can rotate about the shaft 116 so that the shaft 116 itself does not need to rotate. By moving the shaft 116 upward using the fluid pressure cylinder 136, the radial arrangement member 112b can be moved outward in the radial direction, and the wound body 150 can be moved to the center and held in an appropriate position. it can. Moving the radial array member 112b radially inward by reversing the pressure of the fluid pressure cylinder or actuating the shaft 116 removes the radial array member 112b from the wound body and / or It is possible to return to this position and receive the new wound body 150.

  The unwinding machine 100 also has a tension applying mechanism that counters the rotation of the rotatable spindle 109 so that the sheet material can be tensioned when the sheet material is fed from the wound body 150. You may prepare. As shown in FIG. 4, for example, the tension applying mechanism can be provided by a disk member 144 mounted on a rotating disk 114 that rotates with a rotatable spindle 109, and the disk member is provided by a fluid pressure cylinder 142. A brake shoe or other device is pressed against 144 and a controllable frictional force is applied to the disk 144 to counter the rotation of the rotatable spindle 109. The various fluid pressure cylinders 136 and 142 are under control by a control panel (not shown) with a valve that controls the discharge of fluid pressure generating fluid from the fluid pressure pump to the various fluid pressure cylinders 136 and 142. Actuated. The control panel and fluid pressure pump can be disposed on a support structure that also supports the unwinder 100 (eg, a mobile trailer that can be pulled to the rear of the truck).

  FIG. 5 shows another embodiment of the unwinder 200, which is in a non-use position, for example, to transport the orientation of the unwinder 200 to and from the site. It has an adjustable frame structure that can be adjusted to rotate the support frame 202 of the unwinder 200 to approximately 90 degrees to position the 200. The unwinder 200 is similar in many respects to the unwinder 100 described above, and as described above for the unwinder 100, a rotatable spindle 109 with an expandable radial array member 112b, a cone. A plurality of support roller assemblies 104 including body support rollers 106, a control switch 170 for controlling the fluid pressure to adjust the orientation of the rotatable spindle 109, and the like are included. In addition, as can be seen by comparing FIGS. 5 and 6, the rewinding machine 200 is also constituted by a frame assembly that can rotate the support frame 202 to approximately 90 degrees. This point will be further described in detail.

  In particular, as can be seen with reference to FIGS. 5 and 6, the support frame 202 of the unwinder 200 further includes a first frame member 250, a first hinged frame arm 252, and a second frame member 254. And a second hinged frame arm 256. The first frame member 250 and the second frame member 254 can be secured (eg, welded or otherwise fastened) to a support structure 290 (eg, a steel frame member of a wheeled trailer). . The frame assembly also includes first and second hydraulic cylinders 258 and 260, each having a vertical shaft that is pivotally connected to the support frame 202 via a hinge mechanism as appropriate. By operating a control switch (not shown) to activate the hydraulic cylinders 258 and 260 shown in FIG. 5, the cooperating vertical shafts of the hydraulic cylinders 258 and 260 can be moved upward, The rear side surface of 202 is also moved upward by moving the shafts of the hydraulic cylinders 258 and 260 upward to place the unwinder 200 in the orientation shown in FIG.

  As shown in FIG. 5, the rewinding machine 200 is also provided with a set of guide rollers 272, 274, 276 supported by the frame (for example, the frame member 256 in this embodiment). When the sheet is rewound, a part of the sheet material is guided, and the guide rollers 272, 274, 276 have a rotation axis directed so as to be parallel to the rotation axis B of the rotatable spindle 109. Have. Of course, the guide rollers 272, 274, and 276 may be disposed at other portions of the rewinding machine 200 or may be supported by other frame portions.

Referring back to FIG. 5, the unwinder 200 may be provided with a radially adjustable holding mechanism 280 having a holding roller 282 oriented in the vertical direction,
The holding roller 282 moves inward and outward in the radial direction so as to face the outermost sheet of the wound body 150, and when the holding strap is removed, the wound body 150 is You can avoid rewinding. In the embodiment of FIG. 5, the position of the holding roller 282 of the adjustable tightening mechanism 180 is controlled by a manual crank mechanism having a socket as shown in FIG. When turned, a screw (not shown) rotates, and the vertical holding roller 282 can be moved inward and outward in the radial direction depending on which direction the manual crank is turned.

  The unwinder 200 also rotates at least one of the cone support rollers 106 to facilitate rotation of the winding body 150, eg, feeding sheet material from the winding body 150 to an adjacent metal forming apparatus. You may have a drive mechanism which drives one. FIG. 7 shows a cross-sectional view of the rewinding machine 200, and in particular shows a drive mechanism 300 for driving a pair of cone support rollers 106, for which reference is made to FIG. Further explanation will be given. As shown in FIG. 8, the drive mechanism 300 includes a socket assembly 302 into which a manual crank can be inserted to rotate a pair of cone support rollers 106, a shaft 306 driven by the manual crank, and various other A sprocket, a shaft and gears are provided. In particular, the rotational movement of the shaft 306 is transmitted via the chain 312 to the sprocket 308 that drives the two sprockets 310 to rotate. Each sprocket 310 is connected to a shaft 314 and drives the shaft 314, which in turn drives a bevel gear 316. Each bevel gear 316 similarly drives another bevel gear 318 coupled to a shaft 320 (this shaft 320 is not visible in the figure because of the left hand support roller 106). A bevel gear 322 coupled to the shaft 320 then drives another bevel gear 324 coupled to the roller 106. Thus, in this embodiment, the unwinding machine 200 has a drive mechanism 300 that can rotate a pair of opposing cone support rollers, and the wound body 150 of sheet material is attached to the rotary spindle 109. The rotation around the rotation axis B is promoted.

  It will be appreciated that various configurations of the unwinder 200 shown in FIGS. 5 and 6 can also be used with the unwinder 100 shown in FIGS. A tensioning mechanism to counter the rotation of the rotatable spindle 109, a drive device for driving one or more cone support rollers 106, a set of guiding the sheet material as it is removed from the roll of sheet material And a radially adjustable holding mechanism having a guide roller and a vertically oriented holding roller.

  The unwinders 100 and 200 can be easily operated. First, the wound body is arranged so that its cylindrical axis is oriented vertically, and three or four straps are wound around the sheet material (one end of the supplied strap is the hollow core 156 of the wound body 150). Through the other end of the same strap upwards along the outer circumference of the wound body 150), then using a hoist or forklift to lift the wound body 150 from above with the strap, and By lowering the wound body 150 on the unwinding machine 100, the wound body 150 made of the sheet material can be lowered on the unwinding machines 100 and 200. If the unwinder has four support rollers 106, using four straps is advantageous because the straps can be positioned between the support rollers. Similarly, if the rewinder has three support rollers 106, it is convenient to use three straps. In such a wound body, a metal holding strap is still wound around it so that the sheet material cannot be unwound (the wound body is wound with such a holding strap so as not to be unwound). Transported). When the rewinding machine includes a holding mechanism such as the holding mechanism 280, the holding mechanism is arranged so as to press the vertical holding roller 282 against the sheet outside the wound body (for example, (See FIG. 5). With the holding roller 282 properly positioned, the metal holding strap present on the wound body can be removed. If the unwinder is not equipped with a holding mechanism, position the large C-shaped clamps appropriately and tighten the inner and outer surfaces of the wound body 150 so that some length of sheet material is free. Thus, the sheet material can be fed to an adjacent machine and can be effectively held so as not to be unwound. When having a drive mechanism for driving one or more support rollers 106, the drive mechanism is initially activated to facilitate feeding the sheet material from the wound body to the adjacent machine. Can be made.

  The rewinding machine according to the present disclosure has various advantages as compared with the conventional rewinding device configured so that the cylindrical axis of the wound body is oriented in the horizontal direction when in use. . For example, in view of the fact that other devices for metal forming are placed in close proximity to the unwinder 100, 200 by orienting the unwinder in the vertical direction, as taught herein. The overall size can be considerably reduced. By providing a vertically oriented rewinding machine, unlike conventional horizontally oriented, other metal forming equipment can also be oriented vertically, on a vehicle trailer platform, More devices can be placed efficiently. This is a significant advantage when the vehicle must be applied to transport the building construction device to the site.

  Furthermore, according to the vertical rewinding machine according to the present disclosure, several layers of the wound material are unexpectedly displaced in the axial direction, and one end of one or more layers is one end of the wound body. Naturally, the “stretching phenomenon” that extends beyond the part can be prevented. The expansion and contraction phenomenon in the conventional unwinding machine causes the problem of being out of alignment, and in severe cases, the wound body cannot be used, so the operator must manually operate before using the wound body further. The wound body must be straight. The vertical unwinding machine according to the present invention suitably holds the bottom end of the entire layer of the wound body made of sheet material against the support roller that supports the weight of the wound body, so that the expansion and contraction phenomenon occurs. Of course can be prevented.

  Although the present invention has been described and illustrated with particular reference to embodiments thereof, those skilled in the art will appreciate that the above description, in terms of form or detail, does not depart from the spirit or scope of the invention. It will be understood that various changes in the figures may be made.

Claims (9)

A support frame;
A rotatable spindle supported by the support frame, the spindle being configured to be positioned in a hollow core of a wound body of sheet material and having a rotation axis oriented in a generally vertical direction;
A plurality of cone support rollers supported by the support frame, configured to support a bottom surface of a wound body made of a sheet material, each cone support roller having a wide end and an other end. It has a conical shape with a narrow width, has a rotation axis, and is arranged so that each rotation axis is directed to the rotation axis of the rotatable spindle, and a narrow end portion is provided on the rotatable spindle. A support roller arranged to be located opposite to each other;
A rewinding device for a wound body made of a sheet material composed of   2. The rewinding device according to claim 1, wherein a rotation axis of the cone support roller is inclined by an angle θ with respect to a horizontal direction orthogonal to a rotation axis of the rotatable spindle.   The rotatable spindle includes an adjusting mechanism composed of a plurality of members that abut on the inner peripheral surface of the hollow core of the wound body made of the sheet material, and the positions of the plurality of members are the rotation axes of the rotatable spindle. The rewinding device according to claim 1, wherein the rewinding device is configured to be able to move radially with respect to.   A set of guide rollers supported by the support frame, the guide rollers guide a part of the sheet material when the sheet material is rewound from the wound body, and rotate the rotatable spindle. 2. Rewinding device according to claim 1, characterized in that it has a rotation axis directed along the axis.   The rewinding device according to claim 1, further comprising a drive mechanism that rotationally drives at least one of the plurality of support rollers.   The rewinding device according to claim 1, further comprising an adjustable frame assembly that supports the support frame, the frame assembly being configured to change and control an orientation of the support frame. .   A holding roller supported by the support frame, the position of the holding roller being adjustable in a radial direction, the holding roller having a rotation axis oriented along a vertical direction and made of the sheet material; The rewinding device according to claim 1, wherein the rewinding device is configured to be pressed against an outer peripheral surface of the wound body.   A tension applying mechanism that opposes rotation of the rotatable spindle is provided so that tension can be applied to the sheet material when the sheet material is fed from the wound body. Item 2. The rewinding device according to Item 1.   9. The tension applying mechanism according to claim 8, wherein the tension applying mechanism includes a rotating disk that rotates together with the rotatable spindle, and a shoe that is pressed by the rotating disk to generate a frictional force. The rewinding device described.

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