JP2004217404A - Support device of sheet-like material winding body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide stable tension and a superior winding state of a sheet-like material, particularly, a winding shape by stably rotating a winding body. <P>SOLUTION: This support device 1 of a sheet-like material winding body rotatably supports the winding body 3 by sandwiching the winding body 3 between a pair of support shafts 5. A lever member 7 is supported by a fulcrum member 9 serving as a fulcrum, and is engaged with the support shafts 5 by a connecting pin 18 at a point of application of the lever member 7. A force point position of the lever member 7 is also driven by a driving device 8, and the winding body 3 is sandwiched between the pair of support shafts 5. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for rotatably supporting a winding body when a sheet-like material is wound around the winding body. Note that the sheet-like material refers to a web such as woven fabric, paper, or film, or a warp sheet.
[0002]
[Prior art]
Japanese Patent Laying-Open No. 1-145983 (publication 1) discloses a pair of roll support shafts in this type of apparatus. The pair of roll support shafts sandwich the roll shaft and rotatably support the roll shaft. One of the pair of roll support shafts is in a state of not moving in the axial direction, while the other is freely movable in the axial direction and is mounted so as to be movable in the axial direction by the air cylinder. .
[0003]
[Problems to be solved by the invention]
In the above technique, the pair of roll support shafts cannot sufficiently sandwich the roll for sheet-like material, slip occurs between the roll and the roll support shaft, and the rotation of the roll is not stabilized. For this reason, the tension of the sheet-shaped material is not stable or the winding shape is bad in either winding or rewinding.
[0004]
Accordingly, it is an object of the present invention to stably rotate the winding body so that a stable tension and a good winding state, particularly a winding shape, of the sheet can be obtained.
[0005]
[Means for Solving the Problems]
Based on the above object, the present invention is configured such that at least one support shaft of a pair of support shafts rotatably provided on a machine base is opposed to the machine body with a winding body for a sheet-like material interposed therebetween. For a sheet-like object that is provided so as to be able to advance and retreat in the axial direction, the reciprocable support shaft is advanced and retracted in the axial direction by a drive mechanism, the winding body is sandwiched between a pair of support shafts, and the winding body is rotatably supported. It is premised on a support device for the winding body.
[0006]
The drive mechanism extends in a direction intersecting with the axis of the support shaft and engages with the support shaft that can move forward and backward at a position serving as an action point, and engages with the lever member at a position serving as a force point of the lever member. And a fulcrum member that supports the lever member at a position that becomes a fulcrum of the lever member. The force of the driving device is amplified according to the lever ratio with respect to the fulcrum member (the ratio of the distance between the support point of the fulcrum member and the distance between the application points to the distance between the fulcrum member and the point of application) and presses the support shaft. . Therefore, the pair of support shafts sandwich the winding body by a strong force.
[0007]
More specifically, the support device (1) for a wound body for a sheet-like object of the present invention is opposed to the winding body (3) for a sheet-like object (2) with a machine base (4). At least one support shaft (5) of a pair of support shafts (5) rotatably provided is provided so as to be able to advance and retreat in the axial direction with respect to the machine base (4). The drive mechanism (6) advances and retreats in the axial direction of the support shaft (5), sandwiches the winding body (3) between the pair of support shafts (5), and rotatably supports the winding body (3). And a lever member (7) that extends in a direction intersecting the axis of the support shaft (5) and engages with the support shaft (5) that can move forward and backward at a position serving as an action point. A driving device (8) that engages with the lever member (7) at a position to be the point of force of the lever member (7) to drive the lever member (7), and a lever member ( (7) A fulcrum member (9) for supporting (7).
[0008]
The lever member (7) is engaged with the driving device (8) at a position serving as a point of force at one end, is supported by the fulcrum member (9) at a position serving as a fulcrum at the other end, and is a position serving as an action point between both ends. And is engaged with the support shaft (5) (claim 2).
[0009]
The drive mechanism (6) includes a relief device (40), and the fulcrum member (9) is supported via the relief device (40) so as to be movable in the axial direction of the support shaft (5). It is urged in the direction (claim 3).
[0010]
The relief device (40) is constituted by a hydraulic cylinder (22) or by an elastic member (41) (claims 4 and 5). The escape device (40) has a sensor (35). The sensor (35) detects the movement of the fulcrum member (9) in the direction opposite to the winding body, and based on the movement detection, the driving device (8). ) Is stopped (claim 6).
[0011]
The escape device (40) has a lock device (39), and the lock device (39) holds the lever member (7) based on the detection of the movement of the fulcrum member (9) by the sensor (35). (Claim 7).
[0012]
The pair of support shafts (5) are provided so as to be able to advance and retreat in opposition to the machine base (4), and one of the driving device (8) for moving one support shaft (5) and the other support shaft (5). ) Is driven by a rotary drive source (25), a drive shaft (31) rotationally driven by the rotary drive source (25), and a feed screw integrated with the drive shaft (31). (33) and a moving member (36) which is screw-coupled to the feed screw (33) and whose rotation is restricted to engage with the position of the point of force of the lever member (7). The lever member (7) is moved in the direction of movement of each support shaft (5) by an amount (claim 8).
[0013]
In one lever member (7) and the other lever member (7), the distance between the support point of the fulcrum member (9) and the point of action with respect to the distance between the support point of the fulcrum member (9) and the point of force is determined. The escape device (40) is provided only in one of the drive mechanisms (6) at the same ratio, and the fulcrum member (9) moves in the opposite direction after the support shaft (5) starts to clamp the winding body (3). The sensor (35) detects the arrival of the fulcrum member (9) at a predetermined position by moving in the direction of the winding body, and based on the detection of the arrival at the predetermined position, the driving device (8) At a stand-by position before stopping and holding, one support shaft (5) is set in a state in which it has advanced to the center of the machine base (4) by a predetermined amount than the other support shaft (5). (Claim 9).
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows the entire support device 1 for a roll of sheet-like material according to the present invention, and FIGS. 2 and 3 show a connecting portion of a lever mechanism. As described above, the sheet-like material 2 refers to a web such as woven fabric, paper, or film, or a warp sheet. However, since the following embodiments are premised on being incorporated into a warping machine, The sheet-like material 2 is a warp sheet, and the wound body 3 is a warp beam.
[0015]
In FIGS. 1 to 3, a supporting device 1 for a sheet-like material winding body is rotatable on a machine base 4 and is capable of moving forward and backward in an axial direction in order to rotatably support a winding body 3 of a sheet-like material 2. And a drive mechanism 6 for moving the movable support shaft 5 forward and backward in the axial direction. The pair of support shafts 5 are opposed to each other with the winding body 3 interposed therebetween, and are fitted into the recessed receiving portions 11 at the centers on both sides of the winding body 3 by the truncated cone-shaped heads 10 attached to the opposite ends. It rotates with the body 3.
[0016]
Each of the support shafts 5 is inserted into the cylindrical body 12, and can be moved forward and backward in the axial direction while being prevented from rotating with respect to the cylindrical body 12 by a key 13, and is supported by front and rear bearings 14 located on the outer peripheral side of the cylindrical body 12. 4 so as to be rotatable. A brake disk 15 is attached to the opposite end (tip) of each of the cylinders 12, and a disk brake 16 attached to the machine base 4 holds the brake disk 15 and co-rotates with the cylinder 12. Stop 5
[0017]
Note that, for example, the left one of the left and right brake disks 15 also serves as the drive pulley 17, and a rotational drive source and a belt (not shown) rotate the left support shaft 5 to form a pair of support shafts 5. The winding body 3 supported between them is rotated. At this time, the right support shaft 5 rotates on the driven side, but the right support shaft 5 can also be driven by a rotation drive source and a belt (not shown).
[0018]
The drive mechanism 6 has a characteristic configuration of the present invention. As shown in FIGS. 1 to 3, as shown in FIGS. 1 to 3, when the take-up body 3 is attached / detached, the pair of support shafts 5 advance and retreat in the axial direction. It has a member 7 and a driving device 8. The lever members 7 extend behind the respective support shafts 5 in a direction intersecting the axis of the support shafts 5, and can be advanced and retracted by connecting pins 18 and connecting shafts 19 at positions where the lever members 7 act. The lever member 7 is driven by the driving device 8 by an engagement pin 37 at a position serving as a force point of the lever member 7, and further connected to a pin-shaped fulcrum member 9 at a position serving as a fulcrum of the lever member 7. . The connecting shaft 19 is rotatably mounted on the rear end hole of the support shaft 5 by a bearing 34 so as to be prevented from falling off by a retaining ring or the like.
[0019]
In this embodiment, the left fulcrum member 9 is connected to one end of a support lever 20, and the other end of the support lever 20 is connected to the machine base 4 by a pin 21. 1 to 3, the right fulcrum member 9 is connected to the end of a piston shaft 23 of the hydraulic cylinder 22. The tail end of the hydraulic cylinder 22 is connected to the machine base 4 by a pin 21. It is connected to. The piston shaft 23 of the fluid pressure cylinder 22 is urged in the direction of the winding body 3 and protrudes from the main body by a predetermined length, and holds the fulcrum member 9 to be connected at a predetermined position. Energize in the direction of 3. The biasing force is adjusted by adjusting the pressure of the internal fluid (air or oil), and acts as a relief device 40.
[0020]
The hydraulic cylinder 22 has a locking fluid port (port). The locking fluid port functions as a lock device 39 for supporting the piston shaft 23 of the hydraulic cylinder 22 in a fixed state. The advanced position of the piston shaft 23 (the position of the fulcrum member 9 on the right side) can be detected by a sensor 35 supported by a sensor holder 45 as opposed thereto.
[0021]
In addition, the driving device 8 transmits the rotation of the motor 25 with a brake as a rotation driving source to the interlocking shaft 28 by the chain wheel 26 and the chain 27 in order to drive the power point (engaging pin 37) of the lever member 7, The rotation of the shaft 28 is transmitted to the left and right drive shafts 31 by the chain wheel 29 and the chain 30. The interlocking shaft 28 is rotatably supported by a pair of frames 32 integrated with the machine base 4.
[0022]
The left and right drive shafts 31 are supported so as to be rotatable with respect to the machine frame 4 and the frame 32 integrated with the machine frame 4 and not to move in the axial direction. Screw connection. The moving member 36 applies a force to the force point of the lever member 7 while allowing the engaging pin 37 inserted in the long hole 38 to vertically displace the engaging pin 37. The female screws of the left and right feed screws 33 and the moving member 36 are formed as reverse screws on the left and right. Note that the brake-equipped motor 25 as a rotary drive source may be provided for each of the left and right feed screws 33.
[0023]
Next, FIG. 4 shows the operation of the support device 1 for a roll of sheet-like material according to the present invention. In FIG. 4, (1) is a standby state of the pair of support shafts 5, and (2) is a state after the pair of support shafts 5 have started to clamp the winding body 3, and the right fulcrum member 9 (fulcrum) is moved ( (Retreat) Start state, (3) shows a state in which the winding body 3 is sandwiched by the pair of support shafts 5, respectively. (2 ') shows a state in which the support shaft 5 is retracted due to the retraction of the fulcrum member 9 (fulcrum).
[0024]
In FIG. 4, L is the distance from the center of the machine base 4 at the standby position before clamping to the left connecting pin 18 (action point), and S is the position after the clamping is started from the standby position to the right fulcrum. The amount of movement of the pair of fulcrum members 9 before the member 9 (fulcrum) starts moving (retreating), D is the distance between the sensor 35 and the piston shaft 23, α is the amount of movement of the fulcrum member 9 (fulcrum), β indicates an amount (advanced amount) that is more advanced than the left side of the right fulcrum member 9 with respect to the center of the machine base 4 at the standby position. A indicates the distance between the engagement pin 37 (force point) and the connection pin 18 (action point), and B indicates the distance between the fulcrum member 9 (support point) and the connection pin 18 (action point).
[0025]
First, in (1) of FIG. 4, the piston shaft 23 of the fluid pressure cylinder 22 is urged in the direction of the winding body 3 and projects from the main body by a predetermined amount, and the pair of support shafts 5 are retracted. It is in the standby position. In such a state, the right support shaft 5 provided with the escape device 40 is set to a state in which the support shaft 5 advances to the center of the machine base 4 by β from the left support shaft 5. The take-up body 3 is placed between the pair of support shafts 5 and is usually placed off the center of the machine base 4.
[0026]
In (2) of FIG. 4, when the motor 25 with the brake rotates and the left and right drive shafts 31 and the feed screw 33 rotate, both the left and right moving members 36 move toward the center of the machine base 4 and move forward. (Movement in the direction of the winding body) is started. In this movement process, when the right lever member 7 satisfies [load on the fulcrum member 9> urging force of the fluid pressure cylinder 22], the piston shaft 23 urged in the winding body direction separates from the winding body 3. The fulcrum member 9 on the right side starts moving in a direction away from the winding body 3 (in a direction opposite to the winding body).
[0027]
In (2 ′) of FIG. 4, the retraction (movement in the direction opposite to the take-up body) of the right fulcrum member 9 acts to rotate the lever member 7 about the engagement pin 37 (force point). , Α × [A / (A + B)] to retract the action point (connecting pin 18). On the other hand, during this time, the right and left drive shafts 31 advance the left and right support shafts 5 together, so that the right and left drive shafts 31 move rightward from the start of the retraction of the fulcrum member 9 to the stop at the predetermined position (completion of clamping). (The connecting pin 18) moves forward by β. In this way, the right support shaft 5 repeats retreating and advancing, and although it advances a little, it keeps its position substantially. Therefore, β ≒ α × [A / (A + B)] may be approximately set, and centering of the winding body 3 can be performed with required accuracy.
[0028]
(3) of FIG. 4 shows the time when the movement of the fulcrum member 9 is completed, that is, the time when the holding of the winding body 3 is completed. When the fulcrum member 9 reaches a predetermined position, the driving device 8 stops. At this time, the pressurized fluid is supplied from the lock device 39 to the hydraulic cylinder 22, the piston shaft 23 is locked, and the other end of the lever member 7 is held via the fulcrum member 9. As a result, the lever member 7 is held at both ends thereof, and holds the support shaft 5 firmly. During the state between (2) and (3) in FIG. 2, one of the support shafts 5 is almost stopped, while the other support shaft 5 advances by β.
[0029]
FIG. 5 shows a lock device 39 and an escape device 40 according to another embodiment. The right lever member 7 is supported by the lock device 39 below the pin 21 and the swing lever 42. The lock device 39 includes a fixed holding piece 43, a piston shaft 47 of the fluid pressure cylinder 46, and a movable holding piece 45 at the tip of the piston shaft 47. The lower part of the lever member 7 is locked (fixed) by frictionally holding the swing lever 42 therebetween.
[0030]
In FIG. 5, the relief device 40 applies the support shaft 49 to the lever member 7 by the elastic member 41 of the compression spring in the support shaft holder 48 and urges the lever member 7 in the direction of the winding body. The displacement of the lever member 7 is detected by the contact between the sensor 35 by the limit switch fixed thereto and the mitt switch contact piece 50 fixed to the support shaft holder 48.
[0031]
In the embodiment shown in FIGS. 1 to 4, only one of the pair of support shafts 5 is allowed to advance and retreat in the axial direction, and the other support shaft 5 is not allowed to advance and retreat, but at a fixed position. As another such embodiment, FIG. 6 shows a support device 1 for a sheet-like material winding body incorporated in a feeder. The feeder feeds the sheet material 2 while applying a brake to the winding body 3, and the left side of the winding body 3 is rotatable by the machine base 4 by the left support shaft 5, the bearing 51, and the bearing body 52. The left side of the winding body 3 is rotatably supported by a right supporting shaft 5, a bearing 51, and a bearing body 52 which are held by a lever member 7 so as to be able to advance and retreat. The lever member 7 is provided only on the right side, is held by the lock device 39 and the escape device 40 similar to the embodiment of FIG. 5, and is driven by the feed screw 33 and the moving member 36 at the point of force. Has become. The motor 25 with a brake rotates the feed screw 33 by two gears 53 and 54.
[0032]
In order to obtain an appropriate clamping force, it is not always necessary to provide the relief device 40. For example, a pressure sensor such as a load cell is provided, and the load applied to the support shaft 5 and the lever member 7 is measured, and the value is set to a predetermined value. When reaching, the driving device 8 provided with the brake may be stopped or driven via a clutch, so that the driving device 8 can be stopped immediately.
[0033]
【The invention's effect】
According to the first aspect of the present invention, in the support device for a sheet-like material winding body, the drive mechanism extends in a direction intersecting the axis of the support shaft and engages with the support shaft that can advance and retreat at a position serving as an action point. A lever member, a driving device that engages with the lever member at a position to be the point of force of the lever member to drive the lever member, and a fulcrum member that supports the lever member at a position to be the fulcrum of the lever member. The force of the device is amplified according to the lever ratio of the lever member and presses the support shaft. Therefore, the pair of support shafts sandwiches the winding body with a force stronger than the driving device, and supports the winding body in a stable state. Therefore, a stable tension and a favorable winding state, particularly a winding shape, of the sheet material can be obtained.
[0034]
According to the second aspect, the lever member is engaged with the driving device at a position serving as a force point at one end, is supported by the fulcrum member at a position serving as a fulcrum at the other end, and is supported at a position serving as an action point between both ends. Engage with shaft. As a result, the distance between the supporting point of the fulcrum member and the force point becomes substantially the entire length of the lever member, and the lever ratio increases. Therefore, the lever member can be shortened to obtain the same clamping force.
[0035]
According to the third aspect, the drive mechanism includes a relief device, and the fulcrum member is supported via the relief device so as to be movable in the axial direction of the support shaft and is urged in the direction of the winding body. For this reason, as the force from the driving device increases, the holding force of the support shaft against the winding body increases, and the force applied to the fulcrum member also increases. When the force applied to the fulcrum member exceeds the urging force, the fulcrum member moves in the direction opposite to the winding body. The movement of the fulcrum member acts as a movement (retreat) of the support shaft in the direction of the anti-winding body with respect to the engagement point (point of force) with the drive device. (Moving forward) in the direction of the winding body due to the above. Therefore, since the support shafts are moved in the opposite directions to each other, the support shafts are hardly moved and their positions are almost maintained, so that the holding force is not excessive. Therefore, an appropriate pinching force without excess or shortage is obtained. As a result, damage to the bearing and the like of the support shaft due to excessive force and heat generation and damage to the winding body are eliminated, and conversely, shortage of frictional force and slippage due to excessively small clamping force can be prevented.
[0036]
According to the fourth aspect, since the escape device is constituted by the fluid pressure cylinder, setting and adjusting the holding force can be easily performed by setting the fluid pressure.
[0037]
According to the fifth aspect, since the escape device is formed of the elastic member, once the elastic force is set, the subsequent management and handling become easy.
[0038]
According to the sixth aspect, the sensor of the escape device detects the movement of the fulcrum member in the direction opposite to the take-up body, and stops the driving device based on the detection of the movement. Therefore, the driving device performs the driving in an appropriate state. Stop.
[0039]
According to the seventh aspect, the locking device of the escape device holds and fixes the lever member based on the detection of the movement of the fulcrum member by the sensor. In addition to the force, the lever is held at a position different from the engagement position of the drive device, and the lever member is held at both ends. For this reason, the lever member is held firmly, and the holding of the winding body is maintained.
[0040]
According to the eighth aspect, the pair of support shafts are provided so as to be able to advance and retreat in a state in which they are opposed to the machine base, and the drive device is a feed screw integrated with a rotary drive source and a drive shaft that is driven to rotate by the rotary drive source. And a moving member that is screw-coupled to the feed screw and is restricted in rotation and engages with the position of the point of force of the lever member.The moving members are interlocked with each other, and the lever member is moved by the same amount in the reciprocating direction of each support shaft. Since the support shaft is moved, both support shafts advance in the holding direction, so that the winding body can be held without largely moving.
[0041]
According to the ninth aspect, in one and the other lever members, the ratio of the distance between the supporting point of the fulcrum member and the point of action to the distance between the supporting point of the fulcrum member and the power point is the same, and The relief device is provided only in the mechanism, and the fulcrum member moves in the direction of the anti-winding body after the start of the holding of the winding body by the support shaft so that the fulcrum member can reach a predetermined position. When the drive reaches the position, the driving device stops based on the detection of the arrival at the predetermined position, and at the standby position before clamping, one support shaft advances by a predetermined amount from the other support shaft toward the center of the machine base. Is set to According to such a configuration, the lever ratio is the same, and the driving device moves the lever member engaged by the same amount, so that the pair of support shafts can move forward and backward by the same amount. When the force applied to the fulcrum member exceeds the urging force due to the holding of the winding body, the fulcrum member moves in the direction opposite to the winding body. The movement of the fulcrum member acts as a movement (retreat) of the support shaft in the direction opposite to the winder around the point of engagement (force point) with the drive device. During the movement, the movement (forward movement) of the driving device in the direction of the winding body acts on one of the support shafts. Therefore, since the movement in the opposite direction acts on one of the support shafts, the position is maintained almost without any movement. The other support shaft has advanced during that time, but has started to advance by a predetermined amount from a position further away from the center of the machine than the one. Therefore, after the drive device is stopped (after clamping is completed), the support shaft is moved forward. The advance amount with respect to the machine center is substantially the same for one and the other. As a result, the winding body is held substantially at the center of the machine base.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of the entire support device 1 for a roll of sheet-like material according to the present invention, as viewed from the front.
FIG. 2 is a side view of a connecting portion between a support shaft 5 and a lever member 7 in the support device 1 for a roll of sheet-like material according to the present invention.
FIG. 3 is an enlarged front view of the escape device 40.
FIG. 4 is an explanatory view of the operation of the support device 1 for a roll of sheet-like material according to the present invention.
FIG. 5 is a front view of another main part of the support device 1 for a roll of sheet-like material according to the present invention.
FIG. 6 is a front view of another main part of the support device 1 for a roll of sheet-like material according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Supporting device 1 for a roll for sheet
2 sheet-like material 3 take-up body 4 machine base 5 support shaft 6 drive mechanism 7 lever member 8 drive device 9 fulcrum member (fulcrum)
DESCRIPTION OF SYMBOLS 10 Head 11 Receiving part 12 Cylindrical body 13 Key 14 Bearing 15 Brake disc 16 Disc brake 17 Drive pulley 18 Connecting pin (action point)
19 Connection shaft 20 Support lever 21 Pin 22 Fluid pressure cylinder 23 Piston shaft 25 Motor with brake 26 Chain wheel 27 Chain 28 Interlocking shaft 29 Chain wheel 30 Chain 31 Drive shaft 32 Frame 33 Feed screw 34 Bearing 35 Sensor 36 Moving member 37 Engagement Pin (power point)
38 long hole 39 locking device 40 escape device 41 elastic member 42 rocking lever 43 holding piece 44 holding piece 45 sensor holder 46 fluid pressure cylinder 47 piston shaft 48 support shaft holder 49 support shaft 50 limit switch contact piece 51 bearing 52 bearing body 53 gear 54 gear

Claims (9)

At least one of a pair of support shafts (5), which are opposed to each other with a take-up body (3) for the sheet-like material (2) interposed therebetween and rotatably provided on a machine base (4), is mounted on the support shaft (5). A pair of support shafts (5) are provided so as to be able to advance and retreat in the axial direction with respect to the machine base (4), and the advanceable and retractable support shaft (5) is advanced and retracted in the axial direction of the support shaft (5) by the drive mechanism (6). In a supporting device (1) for a sheet-shaped material winding body, which sandwiches the winding body (3) between and supports the winding body (3) rotatably,
The drive mechanism (6) extends in a direction intersecting with the axis of the support shaft (5), and engages with the support shaft (5) that can move forward and backward at a position serving as an action point; A driving device (8) that engages with the lever member (7) at the position to be the point of force of (7) to drive the lever member (7), and a lever member (7) at the position to be the fulcrum of the lever member (7). And a fulcrum member (9) for supporting the sheet material. The lever member (7) is engaged with the driving device (8) at a position serving as a point of force at one end, is supported by the fulcrum member (9) at a position serving as a fulcrum at the other end, and is a position serving as an action point between both ends. The support device (1) for a sheet-like material winding body according to claim 1, wherein the device engages with a support shaft (5). The drive mechanism (6) includes a relief device (40), and the fulcrum member (9) is supported via the relief device (40) so as to be movable in the axial direction of the support shaft (5). The device (1) according to claim 1 or 2, wherein the device is urged in a direction. The support device (1) for a sheet-like material winding body according to claim 3, wherein the relief device (40) is constituted by a fluid pressure cylinder (22). The device (1) according to claim 3, wherein the relief device (40) is constituted by an elastic member (41). The escape device (40) has a sensor (35). The sensor (35) detects the movement of the fulcrum member (9) in the direction opposite to the take-up body, and based on the movement detection, activates the driving device (8). The supporting device (1) for a sheet-like material winding body according to claim 3, wherein the device is stopped. The escape device (40) has a lock device (39), and the lock device (39) holds the lever member (7) based on the detection of the movement of the fulcrum member (9) by the sensor (35). The support device (1) for a sheet-like material roll according to claim 6, characterized in that: The pair of support shafts (5) are provided so as to be able to advance and retreat in opposition to the machine base (4), and one of the driving device (8) for moving one support shaft (5) and the other support shaft (5). ) Is driven by a rotary drive source (25), a drive shaft (31) rotationally driven by the rotary drive source (25), and a feed screw integrated with the drive shaft (31). (33) and a moving member (36) which is screw-coupled to the feed screw (33) and whose rotation is restricted to engage with the position of the point of force of the lever member (7). 4. A device according to claim 1, wherein the lever member is moved in the direction of movement of each support shaft by an amount. In one lever member (7) and the other lever member (7), the distance between the support point of the fulcrum member (9) and the point of action with respect to the distance between the support point of the fulcrum member (9) and the point of force is determined. The escape device (40) is provided only in one of the drive mechanisms (6) at the same ratio, and the fulcrum member (9) moves in the opposite direction after the support shaft (5) starts to clamp the winding body (3). The sensor (35) detects the arrival of the fulcrum member (9) at a predetermined position by moving in the direction of the winding body, and based on the detection of the arrival at the predetermined position, the driving device (8) At a stand-by position before stopping and holding, one support shaft (5) is set in a state in which it has advanced to the center of the machine base (4) by a predetermined amount than the other support shaft (5). The support device (1) for a wound body for a sheet-like material according to claim 1, 2 or 3.

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