JP2018103243A - Pinch roll device and belt-like body supplier equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pinch roll device capable of surely preventing a coil from loosening into pieces even when the material of a belt-like body constituting the coil is strong in repulsive force such as a high tensile steel.SOLUTION: A pinch roll device 3, mounted on a belt-like supplier 1 which delivers a belt-like body 8 from a coil 10 while giving the coil 10 configured by winding up the belt-like body 8 a rotation torque in a reverse direction to a rotation direction along a delivery direction of the belt-like body 8 to form a loop part 18 by bending the belt-like body 8 on the side of the delivery direction of the belt-like body 8, comprises a pair of pinch rolls 41, 42 that clamp the plate face of the belt-like body 8 delivered from the coil 10 to feed out the belt-like body 8 to a loop part 18 by resisting the rotation torque by rotationally feeding these pinch rolls 41, 42. An objective belt-like body supplier 1 is obtained by mounting the pinch roll device 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a steel strip feeding device that feeds a steel strip and a metal strip such as aluminum (hereinafter simply referred to as a “band”) to a device for processing the strip, such as a press device. With regard to the pinch roll device suitable for being mounted on the coil, in particular, it is fed out while sandwiching the belt-like body that is fed out while applying rotational torque in the direction opposite to the rotation direction along the feeding direction of the belt-like body (coil winding direction). The present invention relates to a pinch roll device and a belt-like body supply device including the pinch roll device.

  FIG. 8 shows a front view of a conventional belt-like body supply device 100. The belt-like body supply device 100 is configured to apply a belt-like body 105 fed out from the coil 103 to a leveler, for example, while pressing the outer peripheral surface of the coil 103 with the pressing device 104 so that the coil 103 attached to the drum 102 of the uncoiler 101 does not come apart. The feeding device 106 such as a feeder is configured to supply to a pressing device or the like (not shown) in the next stage (see, for example, Patent Documents 1 and 2).

JP-A-5-123746 Japanese Patent Laid-Open No. 5-229709

  In the belt-like body supply device 100 described above, the loop portion 107 is formed on the feeding direction side of the belt-like body 105 by bending the belt-like body 105 between the uncoiler 101 and the conveying device 106. Further, the uncoiler 101 applies a rotational torque to the coil 103 in the direction opposite to the direction of rotation of the strip 105 (the direction indicated by the arrow A1 in FIG. 8) and the direction opposite the direction indicated by the arrow A2 in FIG. The pressing roll 108 is driven to rotate in the direction of the symbol A3 in FIG.

  By the way, when the material of the strip | belt-shaped body 105 which comprises the coil 103 is high tensile steel etc., the repulsive force with respect to the state currently wound in the coil shape is very strong. For this reason, in the conventional strip-shaped body supply device 100, particularly when the remaining amount of the coil 103 is reduced, the influence of the repulsive force of the strip-shaped body 105 becomes stronger and the coil 103 is scattered, and the strip-shaped body 105 is drawn out to the end. There is a problem that cannot be done.

  The present invention has been made in view of the above-described problems, and even if the material of the belt-shaped body constituting the coil is a material having a strong repulsive force such as high-strength steel, the coil is surely separated. It is an object of the present invention to provide a pinch roll device and a belt-like body supply device including the pinch roll device.

In order to achieve the above object, a pinch roll device according to the first invention comprises:
The belt-like body is fed out from the coil while applying a rotational torque in a direction opposite to the rotation direction along the feeding-out direction of the belt-like body with respect to the coil formed by winding the belt-like body, and the belt-like body on the feeding direction side of the belt-like body A pinch roll device equipped in a belt-like body supply device that is configured to form a loop portion by bending
A pair of pinch rolls sandwiching the plate surface of the belt-like body fed out from the coil is provided, and the belt-like body is fed out to the loop portion against the rotational torque by rotational feed of these pinch rolls. It is a feature.

In the first invention, the pair of pinch rolls are supported so that the tangential direction of the coil at the extended position of the strip and the tangential direction of each pinch roll at a portion where the pair of pinch rolls face each other are matched. It is preferable to provide a pinch roll support tilting mechanism for tilting the pinch roll support (second invention).
In the second aspect of the invention, the pinch roll support may have a center of rotation on a tangent line at or near the tangent line of the strip in the coil, at a predetermined position beyond the pair of pinch rolls from the feed position. It is preferably supported by a hinge part having tiltability (third invention).

  In the first invention, the pair of pinch rolls is maintained so that the relative position between the feeding position of the belt-shaped body that changes in accordance with the change in the outer diameter of the coil and the portion where the pair of pinch rolls face each other is kept constant. It is preferable to provide a pinch roll support moving mechanism for moving the pinch roll support that supports the structure (fourth invention).

Next, the belt-like body supply device according to the fifth invention is:
The belt-like body is fed out from the coil while applying a rotational torque in a direction opposite to the rotation direction along the feeding-out direction of the belt-like body with respect to the coil formed by winding the belt-like body, and the belt-like body on the feeding direction side of the belt-like body In the belt-like body supply device that is configured to form a loop portion by bending
A pinch roll device is disposed between the feeding position of the belt-like body and the loop portion, and the pinch roll device includes a pair of pinch rolls that sandwich the plate surface of the belt-like body fed from the coil. The belt-like body is sent out to the loop portion against the rotational torque by rotational feed of a pinch roll.

  In a fifth aspect of the present invention, the apparatus includes a pair of restricting members that can be engaged with both side surfaces of the coil, and a restricting member moving mechanism that moves the pair of restricting members toward or away from both side surfaces of the coil. It is preferable to provide a belt-like body guide device (sixth invention).

  According to the pinch roll device of the first aspect of the present invention, in the state where the belt-like body fed out from the coil to which the rotational torque is applied in the direction opposite to the rotation direction along the feeding direction of the belt-like body is sandwiched between the pair of pinch rolls. Since the roll is fed to the loop portion against the rotational torque by the rotational feed of the roll, a stronger tensile force can be applied to the belt-like body fed from the coil, and the material of the belt-like body constituting the coil is, for example, Even if the repulsive force of a high-strength steel or the like is strong, it is possible to reliably prevent the coil from coming apart. Moreover, since it sends out in the state with which the strip | belt body was pinched | interposed by a pair of pinch rolls to the terminal end of the strip | belt body of a coil, the stable feeding operation | movement can be implemented to the terminal part of the strip | belt body which tends to meander.

In addition, by adopting the configuration of the second invention, the tangential direction of the coil at the extended position of the belt and the tangential direction of each pinch roll at the portion where the pair of pinch rolls face each other are matched by the pinch roll support tilting mechanism. Therefore, the front-end | tip part of a strip | belt-shaped body can be easily grasped with a pair of pinch roll at the time of coil passage.
Further, by adopting the configuration of the third invention, a rotation center at a predetermined position beyond the pair of pinch rolls from the feeding position on or near the tangent at the feeding position of the strip in the coil is used as a fulcrum. The pinch roll support is tilted, and the tangential direction of the coil at the feeding position of the belt-like body and the tangential direction of each pinch roll at the portion where the pair of pinch rolls face each other can be easily and accurately matched.

  Further, by adopting the configuration of the fourth invention, the relative position between the feeding position of the belt-shaped body that changes in accordance with the change in the outer diameter of the coil and the portion where the pair of pinch rolls face each other is the pinch roll support moving mechanism. Therefore, the shape of the loop portion can be stably maintained.

  According to the belt-like body supply device of the fifth invention, since the pinch roll device according to the first invention is provided, even if the material of the belt-like body constituting the coil is a material having a strong repulsive force such as high-strength steel, It is possible to reliably prevent the coil from being scattered and to supply the device to the next stage stably up to the terminal portion of the coil strip.

  Further, by adopting the configuration of the sixth aspect of the invention, the strip-shaped body is fed out from the coil in a state where the position in the width direction of the strip-shaped body is regulated by the pair of regulating members engaged with both side surfaces of the coil. , It is possible to reliably prevent the strip from shifting in the width direction during the feeding operation of the strip, and the side edges of the strip are deformed into a wave shape, the strip is slackened, or the strip is meandering. It can be surely prevented.

It is a front view of a strip | belt-shaped object supply apparatus provided with the pinch roll apparatus which concerns on one Embodiment of this invention. It is a principal part enlarged view of FIG. 1, and is explanatory drawing of a looper roll. It is a principal part enlarged view of FIG. 1, and is explanatory drawing of a pinch roll apparatus. It is A arrow directional view of FIG. It is operation | movement explanatory drawing (1) at the time of coil passage of the strip | belt-shaped object supply apparatus. It is operation | movement explanatory drawing (2) at the time of coil passage of the strip | belt-shaped object supply apparatus. It is operation | movement explanatory drawing at the time of production of the strip | belt-shaped object supply apparatus. It is explanatory drawing of a prior art.

  Next, specific embodiments of the pinch roll device according to the present invention and the belt-like body supply device including the pinch roll device will be described with reference to the drawings.

<Overview of the strip supply device>
A belt-like body supply device 1 shown in FIG. 1 includes an uncoiler 2, a pinch roll device 3, and a transport device 4 such as a leveler feeder. The uncoiler 2 is configured such that a drum 5 having a horizontal axis is supported on a support column 7 so that rotational power from a motor 6 can be transmitted. A pinch roll device 3 is disposed on one side of the uncoiler 2 (left side in FIG. 1), and a transport device 4 is disposed on the other side of the uncoiler 2 (right side in FIG. 1). In this strip-shaped body supply device 1, a coil 10 formed by winding a strip-shaped body 8 such as a steel strip or an aluminum strip is mounted on the drum 5 so that its horizontal axis coincides with the horizontal axis of the drum 5. . And the strip | belt-shaped body 8 drawn | fed out from the mounted coil 10 is inserted in the conveying apparatus 4 via the loop table 15 and the guide table 19 which are mentioned later, and the catenary 11. FIG. A plurality of leveling rolls 12, feed rolls 13, and the like are provided inside the transport device 4, and the band-like body 8 inserted into the transport device 4 has a predetermined supply speed or At the supply pitch, the sheet is conveyed to another processing apparatus (not shown) such as a press apparatus arranged in the next stage of the conveyance apparatus 4.

Here, when the belt-like body 8 drawn out from the coil 10 is passed through the inside of the conveyance device 4 to the gantry 14 that supports the pinch roll device 3, it is transferred to the conveyance device 4 while supporting the drawn belt-like body 8. A loop table 15 is provided for guiding. The base end of the loop table 15 is connected to the gantry 14 via the pivot 16a, and the loop table 15 is in a state where it hangs down below the coil 10 (see FIG. 1; hereinafter referred to as “production position”). Between the loop table 15 and the state where the loop table 15 extends substantially horizontally below the coil 10 (refer to FIGS. 5A and 5B, hereinafter referred to as “position during passage”). It can be swung up and down about the pivot 16a. The position of the loop table 15 can be switched between the passing position and the production position by the expansion / contraction operation of the air cylinder 17a for applying a rotational force for rotating the loop table 15 around the pivot 16a. ing.
A guide table 19 is disposed on the conveying device 4 side so as to face the loop table 15. In this guide table 19 as well as the loop table 15, the guide table 19 is hung under the coil 10 (see FIG. 1; hereinafter referred to as “production position”) and the guide table 19 is coiled. 10 can be swung up and down with the pivot 16b as a fulcrum between a state position (see FIGS. 5A and 5B, hereinafter referred to as “threading position”) extending substantially horizontally below 10. It has become. The guide table 19 can be switched between the threading position and the production position by the expansion and contraction operation of the air cylinder 17b for applying a rotational force for rotating the guide table 19 around the pivot 16b. ing.

Further, in the uncoiler 2, the motor is driven in the direction opposite to the rotation direction (indicated by the symbol R <b> 1 in FIG. 1) and the reverse direction (indicated by the symbol R <b> 2 in FIG. 1). The rotational torque from 6 is applied. Also, so as to form a loop portion 18 at the pit P _i by bending a belt-shaped member 10 in the feeding direction of the band-like body 8.

<Description of looper roll>
As shown in FIG. 2, the uncoiler 2 is provided with a looper roll 20 that presses the outer peripheral surface of the coil 10. The looper roll 20 includes a pivot 22 supported by a frame 21 connected to the support column 7, and a base 23 fixed to the pivot 22, and an arm 23 that can be raised and lowered around the pivot 22 together with the pivot 22. Yes.

  A pressing roller 24 that has a horizontal axis parallel to the horizontal axis of the drum 5 and is rotatable about the horizontal axis is attached to the tip of the arm 23 so as to be able to contact the outer peripheral surface of the coil 10. The presser roller 24 is rotationally driven in the direction of the arrow R3 in FIG. 2 when the rotational power from the motor 25 attached to the arm 23 is transmitted through a power transmission mechanism (not shown).

  In the looper roll 20, the operation of the hydraulic cylinder 26 for applying a rotational force to the pivot 22 causes the arm 23 to be raised and lowered around the pivot 22 so that the presser roller 24 approaches or separates from the coil 10. It is designed to be displaced.

<Description of strip guide device>
A belt-like body guide device 30 is further provided at a portion near the tip of the arm 23. This strip-shaped body guide device 30 mainly corresponds to a pair of disk guides 31 (corresponding to “a pair of restricting members” of the present invention) and a disk guide moving mechanism 32 (a “regulating member moving mechanism” of the present invention). .).

  The pair of disk guides 31 is disposed in the vicinity of the presser roller 24 so as to be engageable with both side surfaces of the coil 10 on a horizontal axis parallel to the horizontal axis of the coil 10.

  The disk guide moving mechanism 32 is mainly composed of a ball screw (or trapezoidal screw) linear motion guide mechanism and a rotational drive mechanism, although detailed illustrations thereof are omitted. Here, examples of the ball screw linear guide mechanism include two ball screws provided so as to correspond to each of the pair of disk guides 31, a guide rail, and the like. The rotational drive mechanism includes a separate motor that gives rotational power to the two ball screws in the normal rotation direction or the reverse rotation direction, a power transmission mechanism that connects each motor and each ball screw, and the like.

  In the belt-shaped body guide device 30, a pair of disk guides 31 are attached to a disk guide moving mechanism 32 via a disk guide support member 33. Then, by the operation of the disk guide moving mechanism 32, the pair of disk guides 31 are moved toward or away from both side surfaces of the coil 10.

<Description of auxiliary looper roll>
In addition to the looper roll 20, an auxiliary looper roll 35 is attached to the uncoiler 2. The auxiliary looper roll 35 includes an auxiliary arm 37 whose base end portion is supported by a portion near the distal end portion of the arm 23 by a pivot 36 and is swingable about the pivot 36.

  An auxiliary presser roller 38 having a horizontal axis parallel to the horizontal axis of the drum 5 and rotatable about the horizontal axis is attached to the tip of the auxiliary arm 37 so as to be able to contact the outer peripheral surface of the coil 10. . When the auxiliary presser roller 38 comes into contact with the outer peripheral surface of the coil 10, it rolls following the rotation of the coil 10.

  In the auxiliary looper roll 35, the operation of the hydraulic cylinder 39 for applying a rotational force for rotating the auxiliary arm 37 around the pivot 36 causes the auxiliary arm 37 to swing around the pivot 36 as a fulcrum. 38 is displaced so as to approach or separate from the coil 10.

<Description of pinch roll device>
As shown in FIG. 3, the pinch roll device 3 is arranged between the feeding position (the position indicated by the symbol K arrow in FIG. 3) of the strip 8 in the coil 10 and the loop portion 18. is set up. The pinch roll device 3 includes a pinch roll 41 on one side (left side in FIG. 3) and a pinch roll 42 on the other side (right side in FIG. 3) (hereinafter referred to as “a pair of pinch rolls 41 and 42” as appropriate). A pinch roll support 43 that supports these pinch rolls 41, 42, a pinch roll support tilting mechanism 44 that tilts the pinch roll support 43, and a pinch roll support moving mechanism 45 that moves the pinch roll support 43. And.

<Description of pinch roll>
The pinch rolls 41 and 42 each have a horizontal axis parallel to the horizontal axis of the drum 5 and are arranged so as to face each other in the plate thickness direction of the band-shaped body 8. 3, the other side pinch roll 42 can be brought into contact with the other side (right side in FIG. 3) of the belt-like body 8.

<Description of pinch roll support>
The pinch roll support 43 is mainly provided with a casing 46 and a slider 47. The casing 46 has a storage space in which the pinch rolls 41 and 42 and the slider 47 can be stored. A pinch roll 42 is rotatably supported on the casing 46. The slider 47 is attached to the casing 46 so as to be movable relative to the pinch roll 42 so as to approach or separate from the pinch roll 42, and the pinch roll 41 is rotatably supported by the slide 47.

  A piston rod of an air cylinder 48 attached to the casing 46 is connected to the slider 47. When the air cylinder 48 is extended, the slider 47 is moved so that the pinch roll 41 approaches the pinch roll 42, and the plate surface of the strip 8 can be sandwiched between the pair of pinch rolls 41, 42. On the other hand, when the air cylinder 48 is contracted, the slider 47 is moved so that the pinch roll 41 is separated from the pinch roll 42, and the interval between the pinch roll 41 and the pinch roll 42 can be increased.

  As shown in FIG. 4, a motor 49 that outputs rotational power for rotating the pinch roll 42 is attached to the casing 46 so as to send the strip 8 toward the loop portion 18, and the motor 49 and the pinch roll are attached. Power transmission means 50 such as a winding power transmission mechanism is provided between the pin 42 and the pinch roll 42 so that the pinch roll 42 can be rotated in a predetermined rotation direction (indicated by the arrow R4 in FIG. 3) by the operation of the motor 49. It has become.

<Description of pinch roll support tilt mechanism>
As shown in FIGS. 3 and 4, the pinch roll support tilt mechanism 44 includes a hinge portion 51 and a hydraulic cylinder for applying a rotational force that rotates the pinch roll support 43 with the hinge portion 51 as a fulcrum. 52. Here, the hinge 51 is extended on the tangent line indicated by the symbol L in FIG. 3 at or near the tangent line L at the extended position of the strip 8 in the coil 10 (position indicated by the arrow K in FIG. 3). A rotation center, more specifically, a pin 51a, is provided at a predetermined position beyond the pair of pinch rolls 41 and 42 from the position, and the plate surface of the band 8 is pushed between the loop portion 18 from the extended position of the band 8 It serves to support the pinch roll support 43 so as to be tiltable in the pulling direction (pushing direction: arrow direction P1 in FIG. 3, pulling direction: arrow direction P2 in FIG. 3). In this pinch roll support body tilting mechanism 44, the pinch roll support body 43 is attached to the pin 51a in the direction of pushing and pulling the plate surface of the belt-like body 8 sandwiched between the pair of pinch rolls 41 and 42 by the expansion and contraction operation of the hydraulic cylinder 52. It is configured so that it can be tilted to the center. In this way, the center of rotation (pin 51a) is provided at a position at a predetermined distance from the feeding position of the strip 8 in the coil 10 to the feeding side of the strip 8 along the tangential direction of the coil 10 at the feeding position. By adopting a configuration in which the pinch roll support body 43 is tilted with the center (pin 51a) as a fulcrum, the tangential direction of the coil 10 at the feeding position of the belt-like body 8 and each of the portions where the pair of pinch rolls 41 and 42 face each other. The tangential direction of the pinch rolls 41 and 42 can be easily and accurately matched.

<Pinch roll support moving mechanism>
As shown in FIGS. 3 and 4, the pinch roll support moving mechanism 45 includes a base 55 installed on the gantry 14 and a table 56 on which the pinch roll support 43 is placed. A table 56 is installed on the base 55 so as to be slidable in a horizontal direction so as to approach or separate from a vertical plane including a horizontal axis, and a slide mechanism 57 incorporated between the base 55 and the table 56 is operated to operate the base The table 56 is moved in the horizontal direction relative to 55, and the table 56 is reciprocated in the direction in which the belt 8 is supplied (indicated by the arrow D1 in FIG. 3) and in the opposite direction (indicated by the arrow D2 in FIG. 3). It is configured to be able to. Here, as the slide mechanism 57, a detailed description by illustration is omitted, but for example, a mechanism constituted by a known ball screw (or trapezoidal screw) linear motion guide mechanism and a rotation drive mechanism may be used.

<Explanation of the operation of the belt supply device>
The operation of the belt-like body supply device 1 configured as described above will be described below mainly with reference to FIGS.

<Explanation of operation when passing the coil>
First, as shown in FIG. 5 (a), the loop table 15 and the guide table 19 are positioned at the plate plate position, the coil 10 is mounted on the drum 5 of the uncoiler 2, and the arm 23 of the looper roll 20 is angularly displaced. The pressing roller 24 is brought into contact with the outer peripheral surface of the coil 10, and the pair of disk guides 31 are positioned on both sides of the coil 10. In this state, the pair of disk guides 31 are moved so as to approach the both side surfaces of the coil 10 by the belt-shaped body guide device 30. As a result, the strip 8 is fed out from the coil 10 in a state where the position in the width direction of the strip 8 is regulated by the pair of disk guides 31 engaged with both side surfaces of the coil 10. It is possible to reliably prevent the strip 8 from shifting in the width direction during the feeding operation, and the side edges of the strip 8 are deformed into a wave shape, the strip 8 is slackened, or the strip 8 is meandering. It can be surely prevented.

  Next, as shown in FIG. 5 (b), the pinch roll support moving mechanism 45 is operated to move the table 56 horizontally in the direction of the arrow D1 in FIG. The portion between 42 is positioned below the feeding position of the belt-like body 8, and the drum 5 on which the coil 10 is attached and the presser roller 24 are interlocked to connect the coil to the arrow R 1 in FIG. 5B. The strip 8 is pulled out from the coil 10 by rotating in the direction, and the leading end of the pulled strip 8 is guided between the pair of pinch rolls 41 and 42. At this time, the hydraulic cylinder 52 in the pinch roll support tilting mechanism 44 is appropriately expanded and contracted, and the pinch roll support 43 is tilted, so that the tangential direction of the coil 10 at the extended position of the strip 8 and the pair of pinch rolls 41 , 42 are made to coincide with the tangential direction of each pinch roll 41, 42 at the part where the two face each other. Then, the belt-like body 8 is passed between the pair of pinch rolls 41 and 42, the air cylinder 48 is extended, and the slider 47 is moved so that the one side pinch roll 41 approaches the other side pinch roll 42. Thus, the plate surface of the belt-like body 8 is sandwiched between the pair of pinch rolls 41 and 42. Thus, the tangential direction of the coil 10 at the extended position of the belt-like body 8 and the tangential direction of the pinch rolls 41 and 42 at the portion where the pair of pinch rolls 41 and 42 face each other are matched by the pinch roll support tilt mechanism 44. Since the coil passing plate process is performed, the band-like body 8 can be easily passed between the pair of pinch rolls 41, 42 during the coil passing-through, and the band-like body 8 can be passed by the pair of pinch rolls 41, 42. It can be easily grasped.

  Next, as shown in FIG. 6 (a), the hydraulic cylinder 52 in the pinch roll support tilt mechanism 44 is contracted to tilt the pinch roll support 43 in the direction of the arrow P2 in FIG. More specifically, the loop table 15 and the guide table 19 are arranged so as to follow the supply direction of the strip 8 from the tip of the strip 8 passed through the rolls 41 and 42 to the portion sandwiched between the pair of pinch rolls 41 and 42. Lift along. Thereby, the belt-like body 8 drawn out from the coil 10 can be smoothly fed out to the transport device 4 along the loop table 15 and the guide table 19. Then, as shown in FIG. 6B, the band-shaped body 8 sent out along the loop table 15 and the guide table 19 is inserted into the transport device 4 via the catenary 11, and the inserted band-shaped body 8 is Then, the curl and the like are corrected, and the sheet is conveyed to another processing apparatus such as a press apparatus arranged at the next stage of the conveyance apparatus 4 at a predetermined supply speed or supply pitch.

<Description of operation during production>
When the belt-like body 8 transported by the transport device 4 is processed by a processing device such as a press device, for example, as shown in FIG. 1, the arm 23 of the looper roll 20 is angularly displaced to cause the presser roller. 24 is held upright away from the outer peripheral surface of the coil 10, and the loop table 15 and the guide table 19 are positioned at the production position, and between the uncoiler 2 and the conveying device 4, that is, in the feeding direction side of the belt-shaped body 8. The loop body 18 is formed by bending the belt-like body 8. At this time, the pinch roll support 43 is tilted by the pinch roll support tilting mechanism 44, and the tangential direction of each pinch roll 41, 42 in the portion where the pair of rows 41, 42 face each other, and the feeding position of the belt-like body 8. The tangential direction of the arc portion of the belt-like body 8 between the loop portions 18 is matched.

  In the uncoiler 2, the belt-like body 8 is pinched in a state where the belt-like body 8 is sandwiched between the pair of pinch rolls 41 and 42 while the rotational torque in the direction of the arrow R <b> 2 in FIG. The rotary feeds 41 and 42 feed the loop portion 18 against the rotational torque. Thereby, a stronger tensile force can be applied to the belt-like body 8 drawn out from the coil 10.

  As shown in FIG. 7 (a), when the outer diameter of the coil 10 gradually decreases as the processing proceeds, the strip 8 is moved to the relative position between the feeding position of the strip 8 and the pair of pinch rolls 41 and 42 facing each other. Deviation occurs. Accordingly, the pinch roll support 43 on the table 56 is moved by the pinch roll support moving mechanism 45 in the direction of the arrow D1 in FIG. 7A, and the band 8 changes in accordance with the change in the outer diameter of the coil 10. The relative position between the extended position and the portion where the pair of pinch rolls 41 and 42 face each other is kept constant. Thereby, the shape of the loop part 18 can be maintained stably.

  As shown in FIG. 7B, when the processing further progresses and the winding remaining amount of the coil 10 is reduced, the loop table 15 and the guide table 19 are placed at the plate position. In this way, the coil 10 is drawn out until the remaining amount of the coil 10 is exhausted, so that the band 8 is received by the loop table 15 and the guide table 19 when the band 8 is detached from the drum 5. As a result, the belt-like body 8 detached from the drum 5 can be smoothly fed out to the transport device 4 along the loop table 15, the guide table 19 and the catenary 11.

<Description of effects>
According to the pinch roll device 3 of the present embodiment and the belt-like body supply device 1 having the pinch roll device 3, the rotation direction along the feeding direction of the belt-like body 8 with respect to the coil 10 (indicated by the arrow R <b> 1 in FIG. 1) In the state in which the belt-like body 8 is sandwiched between the pair of pinch rolls 41 and 42 while rotating torque is applied in the direction indicated by the arrow R2 in the middle of FIG. Therefore, a stronger tensile force can be applied to the strip 8 fed from the coil 10, and the material of the strip 8 constituting the coil 10 is, for example, high tension. Even if the repulsive force of steel or the like is strong, the coil 10 can be reliably prevented from being scattered. Further, since the coil 10 is fed until the remaining amount of winding is exhausted, the belt 8 is fed in a state where the belt 8 is sandwiched between the pair of pinch rolls 41 and 42 until the end of the belt 8 removed from the drum 5. A stable feeding operation can be performed up to the end portion of the belt-like body 8 which tends to be.

  As described above, the pinch roll device of the present invention and the belt-like body supply device including the pinch roll device have been described based on one embodiment, but the present invention is not limited to the configuration described in the above embodiment, and departs from the gist thereof. The configuration can be appropriately changed within a range not to be performed.

  The pinch roll device of the present invention and the belt-like body supply device including the same reliably prevent the coil from being scattered even if the material of the belt-like body constituting the coil is a strong repulsive force such as high-strength steel. Since it has the characteristic that it can be used, it is suitably used for applications in which a strip is fed from a coil composed of a strip having a strong repulsive force such as high-strength steel and supplied to a processing device such as a press device. The industrial applicability is great.

DESCRIPTION OF SYMBOLS 1 Band-shaped body supply apparatus 3 Pinch roll apparatus 8 Band-shaped body 10 Coil 18 Loop part 30 Band-shaped body guide apparatus 31 Disc guide (regulation member)
32 Disc guide moving mechanism (regulating member moving mechanism)
41, 42 Pinch roll 43 Pinch roll support 44 Pinch roll support tilting mechanism 45 Pinch roll support moving mechanism

Claims (6)

The belt-like body is fed out from the coil while applying a rotational torque in a direction opposite to the rotation direction along the feeding-out direction of the belt-like body with respect to the coil formed by winding the belt-like body, and the belt-like body on the feeding direction side of the belt-like body A pinch roll device equipped in a belt-like body supply device that is configured to form a loop portion by bending
A pair of pinch rolls sandwiching the plate surface of the belt-like body fed out from the coil is provided, and the belt-like body is fed out to the loop portion against the rotational torque by rotational feed of these pinch rolls. A pinch roll device.   A pinch roll support that supports the pair of pinch rolls so that the tangential direction of the coil at the feeding position of the strip and the tangential direction of each pinch roll at a portion where the pair of pinch rolls face each other coincide with each other. The pinch roll device according to claim 1, further comprising a tilt mechanism for tilting the pinch roll support.   The pinch roll support body can be tilted by a hinge portion having a rotation center at a predetermined position beyond the pair of pinch rolls from the extended position on or near the tangent line at the extended position of the strip in the coil. The pinch roll device according to claim 2, wherein the pinch roll device is supported by the pin.   A pinch roll that supports the pair of pinch rolls so as to keep a relative position between a feeding position of the belt-like body that changes in accordance with a change in the outer diameter of the coil and a portion where the pair of pinch rolls face each other. The pinch roll device according to claim 1, further comprising a pinch roll support moving mechanism for moving the support. The belt-like body is fed out from the coil while applying a rotational torque in a direction opposite to the rotation direction along the feeding-out direction of the belt-like body with respect to the coil formed by winding the belt-like body, and the belt-like body on the feeding direction side of the belt-like body In the belt-like body supply device that is configured to form a loop portion by bending
A pinch roll device is disposed between the feeding position of the belt-like body and the loop portion, and the pinch roll device includes a pair of pinch rolls that sandwich the plate surface of the belt-like body fed from the coil. A belt-like body supply device characterized in that the belt-like body is sent out to the loop portion against the rotational torque by rotational feed of a pinch roll. A belt-like body guide device comprising: a pair of restricting members that can be engaged with both side surfaces of the coil; and a restricting member moving mechanism that moves the pair of restricting members toward or away from both side surfaces of the coil. The strip-shaped body supply device according to claim 5, wherein:

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