JPH01266917A - Coil rewinding apparatus - Google Patents

Abstract

PURPOSE:To simplify the constitution of the apparatus and to prevent coil damages by disposing a rewinder and edge guide shiftably in the direction orthogonal to each axis respectively, and pushing the edge guide to the rewinder with an weaker force than the shifting force. CONSTITUTION:The rewinder 1 equipped with a mandrel 4 is provided shiftably in the direction orthogonal to the line direction, the edge guide 2 is movably disposed synchronously with the rewinder 1 in the direction orthogonal to the line direction. At this time, a cylinder 13 of a retract frame 9 makes the pushing member 12 to be always abutted with a receiving member 5 of the rewinder 1. Further, the abutting force is set weaker than the shifting force of the shifting cylinder 6. At the time of centering the coil 3, because the pushing member 12 is pushed by the receiving member 5 with a weak force, the interference between the coil 3 and the guide 2 is prevented. By this method, the constitution of the apparatus is simplified and the damages of the coil 3 are prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coil rewinding device that can rewind a narrow, large diameter coil without damaging it even when centering is performed.

[Prior Art] In general, narrow-width, large-diameter coils tend to unwind during unwinding. = An edge guide that moves back and forth in the radial direction (line direction) relative to the wide, large diameter coil to enable attachment and detachment to the narrow and large diameter coil, and the narrow and large diameter coil is being unwound by the unwinding machine. The edge portions on both sides of the coil were guided by edge guides to prevent the narrow, large diameter coil from becoming unwound.

[Problems to be Solved by the Invention] However, in the conventional coil unwinding device described above, the unwinding machine is fixed, so if a meandering occurs in the strip unwound from the narrow wide and large diameter coil, the narrowing occurs. It was not possible to control the meandering of the strip by centering the large diameter coil.

Therefore, in recent years, various studies have been made to shift the unwinding machine perpendicular to the line direction to center narrow, wide, large diameter coils, or to shift only the unwinding machine to center narrow, wide, large diameter coils. Then, the narrow, large diameter coil interferes with the edge guide fixed in the direction perpendicular to the line direction, damaging both edge portions of the narrow, large diameter coil.

Therefore, it is necessary to shift the edge guide in a direction perpendicular to the line direction to prevent interference between the edge guide and the edge portions on both sides of the narrow and large diameter coil during centering by the unwinding machine. It is difficult to shift in synchronization with the centering movement of
For example, if it were attempted to tune the edge guide using electrical means, the configuration would become extremely complicated and expensive.

In view of the above-mentioned circumstances, the present invention has an inexpensive and simple configuration.
It is an object of the present invention to provide a coil rewinding device in which an edge guide and an unwinder are shifted in synchronization with each other in a direction perpendicular to a line direction to center a narrow, large diameter coil.

[Means for Solving the Problems] The present invention provides a rewinding machine for a narrow wide, large diameter coil that can be shifted in a direction perpendicular to the line direction, and an edge guide for the narrow wide, large diameter coil that can be shifted in a direction perpendicular to the line direction. The present invention relates to a coil rewinding device in which the edge guide is always pressed against the rewinder with a force weaker than the shift force of the rewinder.

[Function] Therefore, in the present invention, the edge guide is constantly pressed against the rewinding machine with a force weaker than the shifting force of the rewinding machine, so when the rewinding machine is shifted, the edge guide shifts in synchronization with the rewinding machine. Therefore, the narrow, large diameter coil can be centered, and even when centering is performed, the narrow, large diameter coil can be rewound without being damaged.

[Implementation example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

The coil unwinding device is composed of an unwinding machine 1 and an edge guide 2.

The rewinding machine 1 includes a mantle member 4 that is rotationally driven and expands and contracts to hold the inner diameter part of the narrow and large diameter coil 3, and a receiver member 5 that extends upstream in the line direction, and a shift cylinder. 6 are connected so that the narrow, large diameter coil 3 can be shifted and centered in the axial direction.

The edge guide 2 is guided by a retract guide 7 located upstream of the rewinding machine 1 and extending in the line direction, and can be reciprocated by a retract cylinder 8.
A shift frame 1■ that can be shifted along a shift guide 10 provided on the retract frame 9 and extending in a direction perpendicular to the line direction, and a push member 12 attached to the shift frame 11 and extending in a direction perpendicular to the line direction are wound. The receiver of the return machine 1 is applied to the shift frame 1 with a force weaker than the cylinder force of the shift cylinder 6 so that it is always in contact with the member 5.
1 and a tension cylinder 13 provided on the retract frame 9 that urges the shift frame 11, and a width adjustment guide 14 provided on the shift frame 11 extending in a direction perpendicular to the line direction, and connected to a drive device 15. The guide arm 17 is made up of a pair of guide arms 17 and 17 that are moved toward and away from each other by the rotation of a screw 16 having left and right opposite threads.

Furthermore, the receiver of the rewinding machine 1 is narrower and wider toward the downstream so that the member 5 and the pushing member 12 of the edge guide 2 can easily come into contact with and separate them by moving the edge guide 2 in the line direction. An inclined surface 18,19 approaching the diameter coil 3 is formed.

Furthermore, reference numeral 20 denotes a guide roll 2 that is radially attached to the guide arm 17 so as to coincide with the radial direction of the narrow and large diameter roll 3.
Reference numeral 1 designates a pinch roll for feeding the strip rewound by the unwinding machine 1, 22 a coil car loaded with a narrow large diameter roll 3 to be rewound next, and 23 a coupling.

The operation will be explained.

The coil car 22 transports the narrow large diameter coil 3 in a direction perpendicular to the line direction and stops at a position where the mandrel 4 of the unwinding machine 1 is inserted into the inner diameter part of the narrow large diameter coil 3.

Next, the diameter of the mandrel 4 of the unwinding machine 1 is expanded, and the mandrel 4 is
The inner diameter portion of the narrow wide large diameter roll 3 is held and the coil car 22 is retracted.

Thereafter, the edge guide 2 is activated, that is, the retract cylinder 8 is extended, the i-tract frame 9 is moved in the line direction, and the guide arm 17 is adjusted to the width of the narrow large diameter coil 3 to be rewinded. Both edge portions of the narrow-width, large-diameter coil 3 are guided.

At this time, the inclined surface 19 of the push member 12 provided on the shift frame 11 or the inclined surface 18 of the rewinding machine 1 is
comes into contact with.

Thereafter, the tension cylinder 13 is contracted to keep the pushing member 12 of the shift frame 11 at the position of the receiving part +4' of the rewinding machine 1.
5, the unwinding machine 1 is operated to unwind the narrow, large diameter coil 3, and the strip is sent downstream via the pinch rolls 21.

When a meandering detector (not shown) detects that a meandering line has occurred in the strip rewound from the narrow-width, large-diameter roll 3, a command is sent to the shift cylinder 6, and the shift cylinder 6 expands and contracts in accordance with the command. Each time, the narrow width and large diameter coil 3 is shifted in a direction perpendicular to the line direction, and the narrow width and large diameter coil 3 is centered.

At this time, the push member 12 of the shift frame 11 is used as the tension cylinder 1 which has a weaker cylinder force than the shift cylinder 6.
3, the receiver of the rewinding machine 1 is always pressed against the member 5 with a force weaker than the shift force of the rewinding machine, so that the receiver of the rewinding machine 1 is always pressed onto the shift frame 11 in synchronization with the shift of the rewinding machine 1 during centering. When shifting the guide arm 17 of the rewinder 1 downward in the figure, the edge guide 2
is shifted downward in the figure following the rewinding machine 1 due to the force of the cylinder 13. Conversely, when the unwinding machine 1 is shifted upward in the figure, it is moved against the force of the unwinding machine 1 or the cylinder 13. By pushing the edge guide 2 upward in the figure, the edge guide 2 is shifted upward in the figure together with the unwinding machine 1, so that the edge guide 2 is prevented from moving against the narrow wide large diameter coil 3. can be rewound without damaging the edges on both sides.

It should be noted that the present invention is not limited to the above-mentioned embodiments,
It goes without saying that the shapes of the receiver and the pushing member do not matter, and that various other changes can be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, according to the coil rewinding device of the present invention, the rewinding machine is provided so as to be shiftable in the direction perpendicular to the line direction, and the edge guide is provided so as to be shiftable in the direction perpendicular to the line direction. Since the edge guide can be constantly pressed against the unwinding machine with a force weaker than the shifting force of the unwinding machine, even if meandering occurs in the strip rewound from the narrow wide and large diameter coil, the unwinding machine and It is possible to center a narrow, wide, large diameter coil by shifting the edge guides in synchrony, and it is also possible to unwind the narrow, wide, large diameter coil by the centering action without damaging the narrow, wide, large diameter coil.Moreover, it is possible to achieve this with an inexpensive and simple configuration. Various excellent effects can be achieved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an embodiment of the present invention. In the figure, 1 is a rewinding machine, 2 is an edge guide, 3 is a narrow and large diameter coil, 5 is a receiver member, 6 is a shift cylinder, 8 is a beam 1 to a tract cylinder, 9 is a tract frame material, and 13 is a cylinder.

Claims (1)

[Claims] 1) A rewinding machine for the narrow wide and large diameter coil is provided so as to be shiftable in a direction perpendicular to the line direction, and an edge guide for the narrow wide and large diameter coil is provided so as to be shiftable in a direction perpendicular to the line direction.
A coil rewinding device characterized in that the edge guide can be constantly pressed against the unwinder with a force weaker than the shift force of the unwinder.