JPH0645047B2 - Rewinding and transporting device for thin metal plate coil - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil rewinding and transferring device for rewinding a metal thin plate coil and transferring the rewound metal thin plate to various processing lines and the like.

2. Description of the Related Art As a conventional device that separates the winding end of a coiled metal thin plate from the coil surface and sequentially rewinds and transfers it to a rerolling line on the downstream side, for example,
There is a device shown in the figure.

This apparatus elevates and lowers and extends and contracts the plate guide 1 by a lifting cylinder 2 and a telescopic cylinder 3, and a wedge-shaped opener 1a provided at the tip of the plate guide 1 is attached to the outer peripheral surface of the coil 4. The coil 4 is rotationally driven in the unwinding direction in such a state that the coil 4 is pressed against the coil 4 at a predetermined angle, and the winding end 4b of the metal thin plate 4a wound in a coil shape is moved to the wedge-shaped opener 1a. It is peeled off from the outer peripheral surface of the coil 4 by riding on it and opened, and it is rewound by continuously rotating the coil 4 and the rewound thin metal plate 4a is transferred on the threading guide 1. In general, the winding end 4b is guided so as to be sandwiched between the pair of pinch rolls 5.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, the metal thin plate 4a wound in a coil shape has a winding tendency of the coil, and since the surface is smooth, it is in close contact with the outer peripheral surface of the coil. It is difficult to separate the winding end from. Therefore, as in the case of the conventional device described above, in order to separate the winding end 4b of the coil 4 from the surface of the coil 4 by the threading guide 1 provided with the opener 1a, the tip of the wedge-shaped opener 1a is Since it is necessary to press strongly against the outer peripheral surface of the coil,
On the surface of the metal thin plate 4a, push flaws and scratches are likely to occur,
There is a problem that the quality and the yield are reduced. In addition, the tip of the opener 1a can be lightly pressed against the surface of the coil 4 in order to prevent the occurrence of flaws, but in this case, the reliability of the work of pulling the coiling end of the coil 4 apart and rewinding it can be ensured. There was a problem that it decreased. Particularly in the case of annealed coil, the winding end of the coil 4 cannot be taken out unless the opener 1a is strongly pressed against the surface of the coil 4, so that the occurrence of push flaws and abrasion flaws cannot be avoided. There was a point.

In addition, when the winding end cannot be separated from the outer peripheral surface of the coil 4 by the opener 1a, the worker approaches the coil 4 by hand to allow the coil 4 to be unwound. It was also dangerous because the winding end had to be peeled off from the coil surface.

Further, in recent years, since it has been required to increase the size of the coil, a large installation space is required in the case of the device including the conventional telescopic plate guide 1. Furthermore, in the case of the retractable plate guide 1, there is a problem that the structure is complicated and the equipment cost is high.

On the other hand, Japanese Unexamined Patent Publication No. 60-238034 describes a pretreatment device capable of rewinding the leading end of a coiled strip and inserting the coil into the main line. This is a device that performs pretreatment for rewinding the coil and inserting it into the main processing line such as surface treatment processing and pipe forming processing.The tip of the opening pillar driven by the cylinder is pressed against the outer peripheral surface of the coil. In this state, the coil is rotated to take out the winding end of the coil and then rewind.
Therefore, in this pretreatment device as well, the pillar for opening is pressed against the outer peripheral surface of the coil to take out the winding end of the coil. Therefore, as in the case of the device of the conventional example shown in FIG. There was a problem that scratches and scratches occur.

Further, Japanese Unexamined Patent Publication No. 61-56731 describes a coil tip guide device. This is related to the tip guide device of the steel plate coil in a pipe making machine, etc., and the base end of the opener with the wedge-shaped claw member attached to the tip of the arm is
The opener is rotatably supported concentrically with the rotating shaft of the coil, the opener is rotated in the direction opposite to the rotating direction of the coil, and the claw member of this opener peels off the winding end of the coil from the coil surface. There is. Therefore, also in this coil tip guiding device, since the tip of the opener is pressed against the outer peripheral surface of the coil as in the conventional example, there is a problem that push flaws, rubbing flaws, and the like occur.

The present invention has been made in view of the above problems, and a metal thin plate coil that can be installed in a narrow installation space while the coil surface is not scratched, and the winding end of the coil can be reliably taken out by a simple mechanism. The purpose is to provide a rewinding transfer device.

Means for Solving the Problems As a means for solving the above problems, the present invention rotatably supports a metal thin plate coil, and a winding end of a metal thin plate wound around the coil is provided from a coil outer peripheral surface. In a rewinding / transferring device for a thin metal coil that is pulled apart and transferred to various processing lines, etc., it is possible to approach / separate from the upper outer peripheral surface of this coil within a plane perpendicular to the rotation axis of the coil that is rotatably supported. And a drive device for driving the arm toward and away from the outer peripheral surface of the upper part of the coil, and a winding end of the coil provided at the tip of the arm so that it can be adsorbed and held. The suction device, and the position where the suction device comes in contact with the outer peripheral surface of the upper part of the coil when the arm is brought closer to the coil behind the suction device in the rewinding rotation direction of the coil. Pressure roll rotatably mounted at a position on the dome, oil spray for spraying oil mist around the winding end of the coil, and forward direction of rewinding rotation of the coil with respect to the adsorption device. And a pinch roll provided at the position, and the thin metal plate at the winding end portion that is attracted to the adsorption device and separated from the outer peripheral surface of the coil is still attracted to the adsorption device. It is characterized in that the oil sprayed by the oil spray slides on the adsorption device and reaches the pinch roll as it is.

With the above-described structure, the thin metal plate coil is rotatably supported, and then the arm is driven in the coil approaching direction to press the pressing roll against the outer peripheral surface of the coil to prevent the coil from loosening. At the same time, the suction device provided at the tip of this arm is sucked onto the outer peripheral surface of the coil. Then, the coil is rotated to stop when the winding end of the thin metal plate wound around the coil reaches a predetermined position, and the vicinity of the winding end is adsorbed and held by the adsorbing device, and then the driving device. When the arm is lifted by the driving force of the coil to separate the winding end of the thin metal plate upward from the outer peripheral surface of the coil and the coil is rotationally driven in the rewinding direction in this state, the rewound thin metal plate is attached to the adsorption device. While maintaining the state of being adsorbed on the coil, the lubrication action of the oil mist sprayed on the surface of the thin metal plate around the winding end of the coil causes the oil mist to slide against the adsorption device and move the position where it is adsorbed to the adsorption device. By doing so, the winding end is transferred in the pinch roll direction. When the winding end of the rewound thin metal plate is sandwiched between the pinch rolls, the arm is lifted and the suction holding of the thin metal plate by the suction device is released.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

The rewinding / transporting device 11 for a thin metal coil is a coil 1 for a thin metal plate held by a payoff reel 12 so as to be rotatable.
The winding end 13b of the thin metal plate 13a wound around
A device that separates from the outer peripheral surface of the coil 13 and transfers the separated winding end 13b to a position where it is sandwiched between the pair of pinch rolls 14, 14 on the processing line side, and is a rotating shaft parallel to the central axis of the coil 13. Two arms 17 each of which has its base end pivotally attached to 16a (one is not shown)
Both arms 17 are arranged so as to be capable of undulating on the base 16 via the rotary shaft 16a, and are provided in parallel with each other at intervals wider than the width of the thin metal plate 13a. . Further, the support shaft 1 is provided between the tips of the two arms 17.
8 is provided in parallel with the rotating shaft 16a, and a pressing roll 19 is rotatably attached to the support shaft 18. Further, at the tip ends of the both arms 17, joint arms 20, 20 bent in a V-shape are provided at their base ends arranged outside the arms 17 so as to be parallel to each other. It is supported on the same axis as the support shaft 18 and is integrally rotatable. Further, the joint arms 20, 20 are connected to each other by connecting members 21 between their tips, and the lower surface side of the connecting member 21 is positioned equidistant from the midpoint of the connecting arms 20, 20. Are provided with suction cups 22, 22. Each suction cup 22 is attached to the connecting member 21 so as to be swingable by a ball bearing 22a. Further, on the lower surface side of the connecting member 21, an oil spray nozzle (not shown) for spraying an oil mist onto the outer peripheral surface of the coil 13 for adsorbing the suction cups 22, 22 is provided.

Further, the two arms 17 are driven up and down by an up-and-down drive cylinder 24 via a lever 23 attached to the rotary shaft 16a having the respective base ends pivotally attached, and the joint arms 20, 20 are The rocking drive cylinder 2 in which the tip of the cylinder rod 25a is connected to the intermediate point of a connecting rod (not shown) that connects the portions bent in a V shape.
5, it is rotated in the vertical direction.

Reference numeral 26 is a short apron for guiding the thin metal plate 13a unwound from the coil 13 to the pinch rolls 14, 14, and 27 is a drive cylinder for moving the apron 26 up and down.

Next, the operation of this embodiment configured as described above will be described.

The coil rewinding / transporting device 11 first holds the coil 17 on the payoff reel 12 so that the arm 17 is raised by the undulation drive cylinder 24, and then the arm 17 is undulated and driven. Then, it is set downward so that the pressing roll 19 arranged on the tip side of the arm 17 presses the outer peripheral surface of the coil 13 in the central axis direction.

Next, the coil 13 held on the pay-off reel 12 is reversely rotated (rotated in the winding direction) while pressing the outer peripheral surface of the coil 13 with the pressing roll 19 to prevent the coil 13 from being loosened. The reverse rotation is stopped when the winding end 13b reaches a predetermined position (the state shown in FIG. 1), and then the oscillating drive cylinder 25 causes the joint arm 2 to rotate.
0 and 20 are rotated downward, and oil is sprayed from an oil spray nozzle (not shown) provided on the connecting member 21 to a region near the winding end 13b on the outer peripheral surface of the coil 13 for adsorbing the suction cups 22 and 22. Spray a mist,
After enhancing the suction ability of each suction cup 22 and the slipperiness of the suction cup 22 in the suction state, the suction cups 22 are suctioned. At this time, since the suction cups 22 are attached to the connecting member 21 via the ball bearings 22a, when the suction cups 22 come into contact with the outer peripheral surface of the coil 13, the suction cups 22 rotate about the ball bearings 22a as fulcrums, The coil 13 is adsorbed to the outer peripheral surface of the coil 13 from the direction perpendicular to the tangent line to securely hold the winding end (position A in FIG. 1).

Next, when the joint arms 20 and 20 are rotated upward by the swing drive cylinder 25, the suction cups 22 and 22 arranged at the tip ends of the joint arms 20 move upward, and the suction cups 22 and 22 are moved upward.
The winding end 13b of the coil 13 adsorbed and held by
It is separated from the outer peripheral surface of the coil 13 and opened. At this time, the pressing roll 19 arranged at the tip of the arm 17
Since the outer peripheral surface of the coil 13 is pressed by, the metal thin plate 13a opened at the previous winding end 13b is loosened by its own weight, and the suction holding by the suction cups 22 does not come off. Then, after the coil 13 is opened,
According to conditions such as the thickness of the metal thin plate 13a wound around the coil 13, the suction cups 22 and 22 are raised to an optimum height (position B in FIG. 1), and the coil 13 is rotated in the forward rotation direction. When it is rotationally driven in the unwinding direction, that is, the arrow direction in FIG. 1, the metal thin plate 13a unwound from the coil 13 is adsorbed and held by the suction cups 22 and 22 because oil mist is sprayed on the surface thereof. It is transported while sliding in the direction of pinch rolls 14 and 14,
The winding end 13b is held between the pinch rolls 14, 14.

When the pinch rolls 14 and 14 clamp the winding end 13b of the thin metal plate 13a, only the joint arm 20 is rotated further upward by the swing drive cylinder 25, and the suction cup 2
The suction and holding of the metal thin plate 13a by 2, 2 moves to the standby position (the position of C in FIG. 1) and the pinch rolls 14, 14 move the metal thin plate 13a.
Is pulled in the rewinding direction to rewind the coil 13. At this time, the pressing roll 19 arranged at the tip of the arm 17 continues to press the outer peripheral surface of the coil 13 to be rewound, and the coil 13 held by the pay-off reel 12 is continued.
However, it prevents the occurrence of slack and lateral shift due to rewinding faster than the pulling speed of the pinch rolls 14, 14.

Further, when the coil for rewinding has a small diameter (in the case of the coil 33 shown by the chain double-dashed point in FIG. 1), the arm 17 is arranged at the tip of the arm 17 by the undulating drive cylinder 24. The pressing roll 19 is tilted downward to a position where it comes into contact with the outer peripheral surface of the coil 33, and the outer peripheral surface of the coil 33 is pressed by the pressing roll 19, and the rocking drive cylinder 25 is used as in the case of the large-diameter coil 13. The joint arm 20 is rotated by the suction arm 22 disposed on the tip side of the joint arm 20, and the winding end of the coil 33 is adsorbed and held by the suction arm 22.
Opening and rewinding transfer of 3 are smoothly achieved.

In this embodiment, the joint arm 20 is rotatably connected to the tip side of the arm 17 having the pressing roll 19 at the tip, and the suction cup 22 is arranged at the tip of the joint arm 20. With the pressing roll 19 holding the outer peripheral surface of the coil 13, only the joint arm 20 can be rotated to perform suction holding, opening and transfer of the metal thin plate 13a by the suction cup, and release of the suction holding. It is possible to prevent loosening of winding during operation during driving.

Further, in this embodiment, since the suction cup 22 is attached to the tip end side of the joint arm 20 via the ball bearing 22a, the suction cup 22 is formed at an angle corresponding to the coil diameter and the inclination of the coil outer peripheral surface.
Since the oil mist is blown onto the surface of the metal thin plate 13a that sucks the suction cup 22, the suction holding by the suction cup 22 is sure and the transfer of the metal thin plate 13a in the suction-holding state can be performed. It can be done smoothly. The oil spray for spraying the oil mist is basically provided in the vicinity of the suction cups 22 and 22, and is configured to spray the oil mist around the winding end portion of the coil 13 as described above. It is enough.

Further, in this embodiment, the suction cup 22 is used as the suction device, but other suction devices such as a suction device which sucks by a vacuum pump and sucks may be used.

EFFECTS OF THE INVENTION As described above, the rewinding / transporting device for a thin metal plate coil according to the present invention approaches / separates from the upper outer peripheral surface of the coil within a plane perpendicular to the rotation axis of the coil rotatably supported. A movable arm, a driving device for driving the arm toward and away from the outer peripheral surface of the upper part of the coil, and a winding end of the coil provided at the tip of the arm so as to be held by suction. A suction device and a position on the arm that is in contact with the upper outer peripheral surface of the coil when the arm is brought closer to the coil, behind the suction device in the rewinding rotation direction of the coil. A pressure roll freely attached, an oil spray for spraying an oil mist around the winding end of the coil, and a front part of the coil in the rewinding rotation direction with respect to the adsorption device. Comprising a pinch roll provided at a position,
The thin metal plate at the winding end portion, which is sucked by the suction device and separated from the outer circumferential surface of the coil, remains adsorbed by the suction device and is attracted to the suction device by the oil sprayed by the oil spray. Since it is configured to slide and reach the pinch roll as it is, when rewinding the metal thin plate coil using the device of the present invention, the adsorption device is wound into a coiled metal thin plate. Adsorb on the surface of the thin metal plate at the winding end of
By positively driving the arm in the direction away from the coil outer peripheral surface by the drive device, the winding end of the thin metal plate can be separated from the coil outer peripheral surface with a large separation force (opening force). Even when the thin metal plate at the take-off end is in close contact with the inner layer of the coil with a large adhesion force, it is possible to easily and surely open the mouth. Further, since the rewound thin metal plate is transported to the pinch roll while relatively sliding while being adsorbed by the adsorbing device by the lubrication action of the oil mist sprayed on the surface, the conventional thin metal plate of this type is used. As in the case of rubbing against the plate guide and scratches on the surface, when the suction force is released by the suction device, the winding end falls downward and contacts or collides with the lower member, causing damage or deformation. Is prevented, so that high quality can be maintained and transfer can be performed smoothly. Furthermore, compared with the conventional device of this type equipped with a telescopic plate guide with a lifting device, the distance between the coil position and the pinch roll can be shortened, so that the installation space can be narrowed and the structure is simple. Therefore, it has effects such as being less likely to break down and reducing the equipment cost.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a side view showing the structure of a rewinding and transferring device for a thin metal plate coil, and FIG. 2 is a part showing the tip of a joint arm. Sectional front view, FIG. 3 shows the state of attachment of the suction cup II of FIG.
FIG. 4 is a side view showing a conventional example, which is a sectional view taken along the line I-III. 11 ... Coil rewinding transfer device, 12 ... Payoff reel, 13, 33 ... Coil, 13a ... Metal thin plate wound around the coil, 13b ... Coil winding end, 14 ... Pinch roll, 17 ... Arm, 18 ... Support Shaft, 19 ... Pressing roll, 20 ... Joint arm, 21 ... Connecting member, 22 ... Sucker,
22a ... Ball bearings, 24 ... Ridge drive cylinders, 25 ... Oscillation drive cylinders, 26 ... Aprons.

Front Page Continuation (72) Inventor Mitsuyuki Nakamura 4-3-18 Nihombashi Muromachi, Chuo-ku, Tokyo Within Sky Aluminum Co., Ltd. (56) Bibliographic references Sho 52-31312 (JP, Y2)

Claims (2)

[Claims] 1. A metal thin plate coil is rotatably supported,
In a rewinding / transferring device for a thin metal plate coil, in which the winding end of the thin metal plate wound around this coil is separated from the outer peripheral surface of the coil and transferred to various processing lines, etc., the vertical axis of rotation of the coil rotatably supported is supported. An arm disposed so as to be able to approach and separate from the upper outer peripheral surface of the coil in a plane, a drive device that drives the arm toward and away from the upper outer peripheral surface of the coil, and the coil And a suction device provided at the tip of the arm so that the winding end of the coil can be suction-held, and an upper part of the coil when the arm is brought closer to the coil behind the suction device in the rewinding rotation direction of the coil. A pressing roll rotatably mounted at a position on the arm that comes into contact with the outer peripheral surface, and an oil mist for spraying oil mist around the winding end of the coil. A wind-up terminal having an ilspray and a pinch roll provided at a position in front of the adsorption device in the coil rewinding rotation direction, and adsorbed by the adsorption device and separated from the outer peripheral surface of the coil. The metal thin plate of the part is configured to slide on the adsorption device by the oil sprayed by the oil spray while being adsorbed to the adsorption device, and reach the pinch roll in that state. A rewinding and transporting device for a thin metal plate coil. 2. The winding of the metal thin plate coil according to claim 1, wherein the arm is formed so that a tip end side thereof, to which the suction device is attached, can be swingably driven in the vertical direction by a hinge. Return transport device.