JP5089249B2 - Metal plate coil inner diameter adjustment device - Google Patents

Description

The present invention relates to a metal plate coil inner diameter adjusting equipment.

  When a metal plate is a take-up metal plate coil with a take-up reel (also called a tension reel), the inner diameter of the metal plate coil is determined by the mandrel diameter of the take-up reel, so the mandrel diameter of the take-up reel is different. And metal plate coils with various inner diameters. In order to perform processing such as rolling or surface treatment on the wound metal plate coil, it is necessary to temporarily rewind, and therefore a rewinding reel (also called a payoff reel, a feed reel or an uncoiler). It is necessary to attach a metal plate coil to the mandrel.

  Normally, the rewinding reel has a mandrel diameter expansion / contraction mechanism. When the metal plate coil is installed, the mandrel diameter is reduced, and after the metal plate coil is installed, the mandrel diameter is increased so that the mandrel and the metal plate coil inner diameter are firmly attached. . However, when a metal plate coil having an inner diameter exceeding the mandrel diameter at the time of maximum expansion is mounted, an attachment is mounted on the mandrel, the mandrel diameter is increased, and then the metal plate coil is mounted.

  Conventionally, attachments to be mounted on a mandrel include a method of expanding a mandrel diameter at the time of mounting a metal plate coil, and a method in which a thick rubber sleeve is externally fitted to the mandrel so as to follow this, or a structure having a divided structure, etc. ing. An example of such a conventional attachment is disclosed in Patent Documents 1 and 2 below.

JP 2003-230912 A Japanese Utility Model Publication No. 63-47372

  However, in the conventional attachment described above, it is necessary to perform an operation of attaching or removing the rewinding reel to or from the mandrel. During this operation, the equipment is in a non-operational state, which reduces the productivity of the equipment. .

  In addition, since the conventional attachment is installed on the mandrel of the rewinding reel, a large amount of labor is required for replacing the attachment in a constrained space such as in a facility. Furthermore, since it is necessary to replace the attachment in a place where the scaffolding is poor, such as a floor surface wet with oil in the facility, the replacement work is accompanied by a great risk.

From the above, the present invention aims to provide a metal plate coil inner diameter adjustment equipment is not reduced equipment productivity during processing or treatment rewinding the sheet metal coils of a plurality of different diameters And

The metal plate coil inner diameter adjusting device according to a first inventions for solving the above problems,
A plurality of segments formed in an arc shape are arranged in a cylindrical shape so that they can be inserted into an inner diameter portion of a metal plate coil formed by winding up a metal plate, and the plurality of segments are fixed to the inner diameter portion. A metal plate coil inner diameter adjusting device configured to expand and reduce the outer diameter of the plurality of segments arranged in a cylindrical shape by an expansion / contraction mechanism,
The expansion / contraction mechanism is
An enlargement mechanism that enlarges the spacing between one segment and another segment adjacent to the one segment;
A reduction mechanism that reduces a distance between the one segment and the other segment adjacent to the one segment;
Furthermore, the enlargement mechanism includes:
A spring provided between the one segment and the other segment adjacent to the one segment;
The reduction mechanism is
A free end that communicates between the one segment and the other segment adjacent to the one segment, is movably supported by the one segment, and a fixed end that is fixed to the other segment. A connecting member having
A cam floor provided at the free end;
A shaft member rotatably supported by the one segment;
When the cam floor can be pressed by the rotation of the shaft member and the cam floor is not pressed, the interval is expanded by the repulsive force of the spring, and when the cam floor is pressed, the interval is set to the spring. And a cam that is contracted against a repulsive force .

  According to the present invention, the metal plate coil inner diameter adjusting device according to the present invention is installed on the metal plate coil, and the installation work of the metal plate coil inner diameter adjusting device on the metal plate coil is processing such as rolling of the metal plate. Or, since it can be performed separately from the processing work such as surface treatment, it does not reduce the productivity of equipment like the conventional attachment, and requires a lot of labor like the conventional attachment replacement work, Furthermore, there is no great danger in the replacement work.

  Further, the metal plate coil inner diameter adjusting device according to the present invention is automatically and constantly enlarged by the repulsive force of the spring of the reduction mechanism by switching the reduction mechanism from the reduction state to the expansion state by the cam mechanism. The operations associated with the enlargement and reduction are easy, and there is no worry of accidentally over-enlarging.

  Furthermore, in the attachment attached to the conventional mandrel, even if the attachment is used, the inner diameter of all the metal plate coils cannot be accommodated. For this reason, in order to reduce the yield drop due to the attachment replacement work as much as possible, it is necessary to select a metal plate coil having an inner diameter within a range that can be covered by the attachment attached to the mandrel.

  On the other hand, the rewinding method using the metal plate coil inner diameter adjusting device according to the present invention has the metal plate coil inner diameter adjusting device according to the present invention adjusted to the inner diameter portion of the metal plate coil in advance to a plurality of metal plate coils. By inserting, the order of the metal plate coils to be mounted on the mandrel can be freely selected. Thereby, since it becomes unnecessary to manage the rewinding schedule of a plurality of metal plate coils, the labor involved in the schedule management can be saved, and the productivity of the equipment can be improved.

  An embodiment of a metal plate coil inner diameter adjusting device and a rewinding method using the metal plate coil inner diameter adjusting device according to the present invention will be described with reference to FIGS. FIG. 1 is a schematic perspective view of a metal plate coil inner diameter adjusting device according to the present embodiment, FIG. 2 is a side view of the metal plate coil inner diameter adjusting device according to the present embodiment viewed from the axial direction, and FIG. FIG. 4 is a cross-sectional view of the expansion / contraction mechanism of the metal plate coil inner diameter adjusting device according to this embodiment shown by AA in FIG. 1, and FIG. 5 is a plan view of the connecting portion of the segment outer peripheral member of the metal plate coil inner diameter adjusting device. FIG. 4 is a cross-sectional view of the reduction mechanism of the metal plate coil inner diameter adjustment apparatus according to the present embodiment shown by BB in FIG. 4, and FIG. 6 is a metal plate coil inner diameter adjustment according to the present embodiment shown by BB in FIG. It is sectional drawing at the time of reduction of the reduction mechanism of an apparatus.

First, an outline of the structure of the metal plate coil inner diameter adjusting device according to the present embodiment will be described.
As shown in FIG. 1, the metal plate coil inner diameter adjusting device 10 according to the present embodiment has a cylindrical shape. As shown in FIG. 2, the metal plate coil inner diameter adjusting device 10 is divided into arcs by 90 degrees to form one segment 11.

  The metal plate coil inner diameter adjusting device 10 is formed in a cylindrical shape by combining four segments 11. These segments 11 can adjust the space | interval between each segment by the expansion / contraction mechanism installed between the segment 11 and the other segment 11 adjacent to this segment. The structure of the expansion / contraction mechanism will be described in detail later.

  By the way, the rewinding reel used for rewinding the metal plate coil has a trunk (mandrel) for installing the metal plate coil. In general, the mandrel is divided into four parts, and the mandrel can be slightly enlarged and reduced in diameter. Since the metal plate coil inner diameter adjusting device 10 according to this embodiment is also divided into four parts, when the metal plate coil inner diameter adjusting device 10 is installed on the mandrel of the rewinding reel, The force can be applied evenly. In the present embodiment, the number of divisions of the metal plate coil inner diameter adjusting device 10 is set to 4 according to the number of divisions of the mandrel. However, the number of divisions may be larger than 4 divisions or less than 4 divisions. It is good also as a structure to do.

  With such a structure, the metal plate coil inner diameter adjusting device 10 according to the present embodiment can expand and contract the outer peripheral portion by operating the expansion / contraction mechanism. That is, the metal plate coil inner diameter adjusting device 10 can enlarge and reduce the outer diameter.

  As shown in FIG. 1, the outer peripheral portion of the metal plate coil inner diameter adjusting device 10 forms a peripheral surface with a gap formed by four annular outer peripheral members 12. As shown in FIG. 2, the annular outer peripheral member 12 is divided into arcs by 90 degrees in the same manner as the segment 11 to form a segment outer peripheral member 13.

  The inner peripheral portion of the metal plate coil inner diameter adjusting device 10 forms a segment inner peripheral member 14 by dividing a cylindrical member into arcs by 90 degrees in the same manner as the segment 11. The segment outer peripheral member 13 and the segment inner peripheral member 14 are joined by a plate-like axial connecting member 15 in the vicinity of both end portions to form one segment 11. In addition, an axial shift preventing member 17 for preventing the segment 11 and another segment 11 adjacent to the segment from shifting in the axial direction is installed at the end of the axial connecting member 15 in the axial direction. Yes.

  As shown in FIGS. 3A and 3B, the segment outer peripheral members 13a and 13b are installed one by one at both ends of the axial connection members 15a and 15b, and inside the segment outer peripheral members 13a and 13b at both ends. Two segment outer peripheral members 13a and 13b are installed at equal intervals. FIG. 3A shows a connecting portion C (see FIG. 2) between the segment 11 when the metal plate coil inner diameter adjusting device 10 is expanded and another segment 11 adjacent to the segment 11, and FIG. b) shows the connection portion C between the segment 11 when the metal plate coil inner diameter adjusting device 10 is reduced and the other segment 11 adjacent to the segment 11.

  In the present embodiment, the four segment outer peripheral members 13 are installed in the axial direction. However, the number of the segment outer peripheral members 13a and 13b is more than four as long as they can be in uniform contact with the inner diameter portion of the metal plate coil. You may install less than four pieces. Furthermore, the segment outer peripheral member 13 may be a single member that forms a continuous plane.

  The connecting portion C of the segment outer peripheral members 13a and 13b installed in each segment 11 with the adjacent segment 11 is formed so that the teeth 16a and 16b formed alternately are engaged with each other. For example, in FIG. 3, the end of the segment outer peripheral member 13a of the upper segment 11a is formed so that all the teeth 16a are located inside, and the end of the segment outer peripheral member 13b of the lower segment 11b is All the teeth 16b are formed so as to be located outside. With such a structure, it is possible to prevent the segment 11 and another segment 11 adjacent to this segment from being displaced in the axial direction.

  As shown in FIG. 3A, when the metal plate coil inner diameter adjusting device 10 is expanded, there is a gap between the end portions of the segment outer peripheral members 13a and 13b facing the teeth 16a and 16b, and the segment 11 And the other segment 11 adjacent to this segment is widened.

  Further, as shown in FIG. 3A, when the metal plate coil inner diameter adjusting device 10 is reduced, there is no gap between the end portions of the segment outer peripheral members 13a and 13b facing the teeth 16a and 16b. The interval between the segment 11 and another segment 11 adjacent to this segment is narrow.

Next, the expansion / contraction mechanism of the metal plate coil inner diameter adjusting device according to the present embodiment will be described.
As shown in FIG. 4, the segment 11 and the segment 11 are adjacent to each other between the segment 11 axial connection member 15 (see FIG. 2) and another segment 11 adjacent to this segment. The three enlargement mechanisms 20 which enlarge the space | interval between the other segments 11 to perform are installed equally in the axial direction.

  For example, in FIG. 4, the enlarging mechanism 20 is configured to enlarge the interval between the upper segment 11a and the lower segment 11b. The enlargement mechanism 20 has a spring 21 installed therein. The spring 21 is supported by spring receiving members 22a and 22b installed on the upper and lower axial coupling members 15a and 15b facing each other.

  Spring support members 26a and 22b are provided with spring support members 26 that support the springs 21 so as to expand and contract correctly. The spring support member 26 passes through the spring receiving members 22a and 22b and is attached to the spring receiving members 22a and 22b so as to move freely. The segment 11 and another segment 11 adjacent to the segment 11 are attached. The expansion and reduction of the interval between the two are not hindered.

When assembling the metal plate coil inner diameter adjusting device 10 according to the present embodiment, the spring 21 is installed between the upper spring receiving member 22a and the lower spring receiving member 22b, and then the axial direction of the upper segment 11a. The disc spring 25 is installed on each of the connecting member 15a and the axial connecting member 15b of the lower segment 11b, and then the two nuts 24 are tightened through the bolts 23 to connect the upper segment 11a and the lower segment 11b. Join.

  Thus, the impact between the bolt 23 and the nut 24 and the axial connection member 15a and the axial connection member 15b when the space between the upper segment 11a and the lower segment 11b is excessively opened by the disc spring 25. Can be absorbed.

  Further, the segment 11 and another segment 11 adjacent to the segment 11 are disposed between the axial connection member 15 of the segment 11 (see FIG. 2) and the axial connection member 15 of another segment 11 adjacent to the segment 11. Two reduction mechanisms 30 for reducing the distance between the two are equally provided in the axial direction.

  Each of the reduction mechanisms 30 has a cam mechanism 31. The cam mechanism 31 of the reduction mechanism 30 reduces the interval between the segment 11 and another segment 11 adjacent to the segment 11. The structure of the cam mechanism 31 will be described in detail later.

  The reduction mechanism 30 has a connecting member 32 that connects adjacent segments 11 to each other. For example, in FIG. 4, the connecting member 32 is installed so as to connect the upper segment 11a and the lower segment 11b.

  One end of the connecting member 32 is fixed by inserting a pin 34 into a connecting member base 33 installed in the axial connecting member 15. For example, in FIG. 4, the connecting member 32 is fixed by inserting a pin 34 into the connecting member base 33 installed on the axial connecting member 15 b of the lower segment 11 b.

  The end of the connecting member 32 on the fixed side is referred to as a connecting member fixing end 32a. The other end of the connecting member 32 is installed so as to be freely movable with respect to the upper segment 11a. The end of the connecting member 32 on the side not fixed is defined as a connecting member free end 32b.

  A cam floor 35 for the cam mechanism 31 is provided at the communication member free end 32b. When the cam 36 of the cam mechanism 31 pushes the cam floor 35, the lower segment 11b coupled to the connecting member fixing end 32a can be lifted. That is, the interval between the upper segment 11a and the lower segment 11b can be reduced.

  The two cam mechanisms 31 are connected by a shaft member 37, and the two cam mechanisms 31 can be operated simultaneously and synchronously by rotating the end portion 37 a of the shaft member 37. The shaft member 37 is supported by a bearing 39 installed on a radial coupling member 38 (see FIGS. 1, 2 and 3) installed between the axial connection members 15 of one segment 11. Further, the radial coupling member 38 also supports the segment outer peripheral member 13.

Here, the operation of the reduction mechanism 30 will be described. As shown in FIG. 5, when the distance between the end of the segment outer peripheral member 13 a of the segment 11 a and the end of the segment outer peripheral member 13 b of the segment 11 b is widened, the cam 36 of the cam mechanism 31 moves the cam floor 35. It is not pressed. As shown in FIG. 6, when the distance between the end of the segment outer peripheral member 13 a of the segment 11 a and the end of the segment outer peripheral member 13 b of the segment 11 b is reduced, the cam 36 of the cam mechanism 31 moves the cam floor 35. It is in a pressed state.

  In the metal plate coil inner diameter adjusting device according to the present embodiment, for example, in FIG. 2, the cam mechanism 31 is rotated by rotating the end portion 37a of the shaft member 37 (see FIG. 4) installed for each segment 11 to the right. By rotating clockwise, the reduction mechanism 30 is brought into the enlarged state, and by rotating the end portion 37a to the left, the cam mechanism 31 can be turned counterclockwise to switch the reduction mechanism 30 to the reduced state.

  The metal plate coil inner diameter adjusting device 10 according to the present embodiment combines and expands the space between the segment 11 and another segment 11 adjacent to the segment 11 by combining the expansion mechanism 20 and the reduction mechanism 30. It constitutes an expansion / contraction mechanism. Then, by installing the expansion / contraction mechanism between the adjacent segments 11, the metal plate coil inner diameter adjusting device 10 according to the present embodiment expands the outer peripheral portion 12 (see FIG. 1) by operating the expansion / contraction mechanism. And can be reduced. That is, the metal plate coil inner diameter adjusting device 10 can enlarge and reduce the outer diameter.

  In the present embodiment, the spring 21 is used for the expansion mechanism 20, but an air cylinder, a hydraulic cylinder, or the like may be used in addition to this. Further, although the cam mechanism 31 is used for the reduction mechanism 30, hydraulic pressure or the like may be used.

As described above, the metal plate coil inner diameter adjusting device 10 according to the present embodiment automatically switches the cam mechanism 31 of the reduction mechanism 30 from the reduced state to the enlarged state, thereby automatically by the repulsive force of the spring 21 of the expansion mechanism 20. In addition, since the image is enlarged with a constant force, the operation accompanying the enlargement and reduction is easy, and there is no fear that the image will be excessively enlarged by mistake.

  Moreover, the metal plate coil inner diameter adjusting device 10 according to the present embodiment is installed on the metal plate coil, and the installation work of the metal plate coil inner diameter adjusting device 10 on the metal plate coil can be performed separately from the work. Therefore, the productivity of the equipment is not lowered as in the conventional attachment, and much labor is required as in the conventional attachment replacement work, and the replacement work is not accompanied by a great risk.

  Furthermore, since the metal plate coil inner diameter adjusting device 10 according to the present embodiment is installed by being inserted into the inner diameter portion of the metal plate coil, the inner diameters of a plurality of different metal plate coils and the mandrel of the rewinding reel are preliminarily set. By installing the metal plate coil inner diameter adjusting device 10 made to match the diameter, a plurality of metal plate coils can be arranged in any order without being restricted by the diameter of the mandrel of the rewinding reel. Can be installed. As a result, it is not necessary to manage the schedule for mounting a plurality of metal plate coils, so the labor associated with the schedule management can be saved, and the metal plate coil is rewound and processed such as rolling or surface treatment on the metal plate. It is possible to improve the productivity of equipment that performs such processing.

  The present invention can be applied, for example, to an operation of rewinding a plurality of metal plate coils having different inner diameters and processing such as rolling or surface treatment.

It is a schematic perspective view of the metal plate coil internal diameter adjustment apparatus which concerns on this embodiment. It is the side view seen from the direction of an axis of the metal plate coil inner diameter adjustment device concerning this embodiment. It is a top view of the connection part of the segment outer peripheral member of the metal plate coil internal diameter adjustment apparatus which concerns on this embodiment. It is sectional drawing of the expansion / contraction mechanism of the metal plate coil internal diameter adjustment apparatus which concerns on this embodiment shown by AA in FIG. It is sectional drawing at the time of expansion of the reduction mechanism of the metal plate coil internal diameter adjustment apparatus which concerns on this embodiment shown by BB in FIG. It is sectional drawing at the time of reduction of the reduction mechanism of the metal plate coil internal diameter adjustment apparatus which concerns on this embodiment shown by BB in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Metal plate coil internal diameter adjustment apparatus 11 Segment 12 Outer peripheral member 13 Segment outer peripheral member 14 Segment inner peripheral member 15 Axial connection member 16 Tooth 17 Axial shift prevention member 20 Enlarging mechanism 21 Spring 22 Spring receiving member 23 Bolt 24 Nut 25 Disc spring 26 Spring support member 30 Reduction mechanism 31 Cam mechanism 32 Communication member 33 Communication member base 34 Pin 35 Cam floor 36 Cam 37 Shaft member 38 Radial direction coupling member 39 Bearing

Claims (1)

A plurality of segments formed in an arc shape are arranged in a cylindrical shape so that they can be inserted into an inner diameter portion of a metal plate coil formed by winding up a metal plate, and the plurality of segments are fixed to the inner diameter portion. A metal plate coil inner diameter adjusting device configured to expand and reduce the outer diameter of the plurality of segments arranged in a cylindrical shape by an expansion / contraction mechanism,
The expansion / contraction mechanism is
An enlargement mechanism that enlarges the spacing between one segment and another segment adjacent to the one segment;
A reduction mechanism that reduces a distance between the one segment and the other segment adjacent to the one segment;
Furthermore, the enlargement mechanism includes:
A spring provided between the one segment and the other segment adjacent to the one segment;
The reduction mechanism is
A free end that communicates between the one segment and the other segment adjacent to the one segment, is movably supported by the one segment, and a fixed end that is fixed to the other segment. A connecting member having
A cam floor provided at the free end;
A shaft member rotatably supported by the one segment;
When the cam floor can be pressed by the rotation of the shaft member and the cam floor is not pressed, the interval is expanded by the repulsive force of the spring, and when the cam floor is pressed, the interval is set to the spring. A metal plate coil inner diameter adjusting device, comprising: a cam that contracts against a repulsive force .

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