JP2009095845A - Steel strip winding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steel strip winding machine equipped with attachments which can prevent restriction on an expansion/retraction movement even if an expansion/retraction stroke is different between segments, and can be replaced in a short period of time. <P>SOLUTION: In the steel strip winding machine 10 having a mandrel 15 having segments 11-14 expanding/retracting in a radius direction, a plurality of attachments 16-19 are cylindrically disposed on the outside of the segments 11-14, the attachments 16-19 are cylindrically coupled so as to be size-reduced in a radius direction by a guide pin 45 provided with a spring 44 for inserting pin holding members 28-43 provided on both sides of the attachment 16-19, and the attachments 11, 12, 14 pivotally support so as to rotate the pin holding members 29, 30, 35, 28, 37, 38, 43 and 36 through which the guide pin 45 for coupling the attachments 16, 17, 19 disposed outside the segments 11, 12, 14 having different expansion/retraction stroke, out of the attachments 16-19, are inserted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a steel strip winding device that grips and winds a steel strip having a wide range of thicknesses.

Conventionally, when a steel strip is wound around a mandrel of a steel strip winding device to form a coil, the tip end side of the steel strip is inserted into a groove formed between mandrel segments and is gripped by a gripper provided in the groove. (For example, refer to Patent Document 1). On the other hand, since the inner diameter of the coil is adjusted according to the demand of the customer, the outer diameter of the mandrel when starting the winding of the steel strip (the outer diameter when the mandrel is expanded) needs to be adjusted according to the demand of the customer. There is. Therefore, the outer diameter of the mandrel is adjusted by changing the thickness of the attachment by changing the thickness of the attachment by attaching an attachment that is connected to the outer side of the annularly arranged segment with a pin equipped with a spring and attached to a cylindrical body. A coil that meets the requirements is formed (for example, see Patent Document 2).

Japanese Utility Model Publication No. 48-20519 Japanese Utility Model Publication No. 1-135116

However, in Patent Document 1, the segments provided on the mandrel are simultaneously expanded and contracted in the radial direction, and the expansion / contraction stroke is the same for each segment. For this reason, since the groove width at the time of the diameter reduction of the mandrel which inserts the front-end | tip part of a steel strip narrows, there exists a problem that the board | plate thickness of the steel strip insertable in a groove | channel produces restrictions. Moreover, in patent document 2, although attachment can be made into a cylindrical body, its attachment / detachment (exchange) can be performed rapidly, but since the gripper is not provided in the mandrel, in order to wind up a steel strip It is necessary to use a device for fixing the tip side of the steel strip to the attachment.

Here, when it is intended to construct a mandrel having a gripper capable of gripping a steel strip with a wide range of plate thicknesses based on Patent Documents 1 and 2, and capable of quick replacement of the attachment, the attachment of Patent Document 2 is one without a gripper. Therefore, the pin insertion mechanism for connecting the segments partially closes the groove for inserting the leading end side of the steel strip, and the steel strip cannot be fixed to the mandrel. In addition, if a large groove width is formed so that the steel strip with a wide range of plate thickness can be gripped by the gripper, the expansion / contraction stroke in the radial direction of the segment facing the gripper in the segment forming the groove can be changed. It is necessary to make it smaller than the expansion / contraction stroke of the segment. However, even if a cylindrical attachment is attached outside the segment with a different expansion / contraction stroke, the movement of a segment with a large expansion / contraction stroke is limited to the movement of a segment with a small expansion / contraction stroke. In other words, the relative positional relationship between the segments changes according to the difference in the expansion / contraction stroke of the segment, causing a misalignment in the insertion hole through which the pin connecting the segments is inserted, and the pin contacts the insertion hole This causes a problem that the relative position change between segments stops.

The present invention has been made in view of such circumstances, and even if the expansion / contraction strokes are different between the segments, the expansion / contraction of each segment is not limited, and the steel strip winding device capable of quickly replacing the attachment provided in the segment The purpose is to provide.

A steel strip winding device according to the present invention that meets the above-mentioned object is a steel strip winding device having a mandrel having a plurality of segments arranged in a ring and expanding and contracting in the radial direction.
A plurality of arc-shaped attachments in a cross-sectional view are arranged in a cylindrical shape outside the segment, and the attachments are provided with pin holding members respectively provided on both the base side and the front side in the circumferential direction of each attachment. Energized so as to reduce the diameter in a radial direction by a guide pin having a spring to be inserted and connected in a cylindrical shape, and the attachments arranged outside the segments having different expansion / contraction strokes are connected in the attachment The pin holding member through which the guide pin is inserted is pivotally supported by the attachment that supports the pin holding member and is rotatable.

In the steel strip winding device according to the present invention, a first end plate member protruding radially outward is provided on the base side of the attachment, and the pin holding member is provided on the base side of the first end plate member. It is preferably attached to the surface.
In the steel strip winding device according to the present invention, a second end plate member projecting radially inward is provided on the front side of the attachment, and the pin holding member is provided on the front side of the second end plate member. It is preferably attached to the surface.
In the steel strip winding device according to the present invention, the expansion / contraction stroke of the other segments excluding one segment is the same among the segments, and is larger than the expansion / contraction stroke of the one segment, On the bottom side of the groove formed between one of the other adjacent segments, the tip side of the steel strip inserted from the groove is provided to face the one segment and is movable in the radial direction. It is preferable that a gripper sandwiched with one segment is provided.

In the steel strip winding device according to any one of claims 1 to 4, the pin holding member through which the guide pin that connects the attachments arranged on the outside of the segments having different radial expansion / contraction strokes is pivotally supported by the attachment. Because it is movable, the guide pin can be rotated in the plane including its axis according to the stroke difference between segments with different expansion / contraction strokes, and the attachment is placed outside the segment with large expansion / contraction strokes Can be prevented from being restricted by attachments placed outside the small segment of the expansion / contraction stroke. As a result, the attachment can be moved in the radial direction following the movement of each segment in the radial direction.
In addition, since the attachments are connected in a cylindrical shape, attachment can be performed by extrapolating the connected attachments to the segments arranged in a ring from the front side, and removal can be performed collectively by pulling out the attachments. Can be exchanged quickly. And an attachment can be arrange | positioned cylindrically by expanding a diameter of a segment, and the coil which has a desired internal diameter can be formed from a steel strip by adjusting the thickness of an attachment.

In particular, in the steel strip winding device according to claims 2 and 3, since the pin holding member is provided at a position that does not hinder the movement of the attachment, the attachment can be easily expanded or reduced.
In the steel strip winding device according to claim 4, since the gripper is provided in the groove formed between the segments having the largest difference in expansion / contraction stroke, that is, the groove having the maximum width, the steel strip having a wide range of plate thickness is grasped. be able to.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 is a side sectional view of a steel strip winding device according to an embodiment of the present invention, and FIGS. 2A and 2B are RR in FIG. 3 are cross-sectional views taken along arrows, and FIGS. 3A and 3B are views taken along arrows PP and QQ in FIG. 1, respectively.

As shown in FIGS. 1 and 2, a steel strip winding device 10 according to an embodiment of the present invention has a substantially circular arc shape in a cross-sectional view and is arranged in an annular shape so as to expand and contract in the radial direction. The segment 11, 12, 13, 14 has a mandrel 15, and the outer side of each segment 11-14 has arcuate attachments 16, 17, 18, 19 concentric with the segments 11-14 in a cross-sectional view. Are arranged in a cylindrical shape. Here, among the segments 11 to 14, for example, the expansion / contraction stroke S ₁ of the other segments 12 to 14 excluding the segment 11 is the same, and is set larger than the expansion / contraction stroke S ₂ of the segment 11. Details will be described below.

As shown in FIGS. 3 (A) and 3 (B), the attachments 16 to 19 are approximately one-fourth as viewed in cross section on the base side (the side on which the rotational driving force is transmitted to the mandrel 15 is the base side). Arc-shaped first end plate members 20, 21, 22, and 23, and the first end plate members 20 to 23 are examples of fastening members on the base side of the attachment main bodies 16 a, 17 a, 18 a, and 19 a. A bolt 49 is used to project radially outward. Further, the attachments 16 to 19 include second end plate members 24, 25, 26, and 27 having a substantially circular arc shape as viewed in cross section on the front side, and the second end plate members 24 to 27. Is attached to the front side of the attachment main bodies 16a, 17a, 18a, 19a so as to protrude radially inward using a bolt 49 which is an example of a fastening member. And pin holding members 28 and 29, pin holding members 30 and 31, pin holding members 32 and 33, and pin holding member 34 are arranged on both sides in the circumferential direction of the base side surfaces of the first end plate members 20 to 23, respectively. , 35 are provided. On the other hand, pin holding members 36 and 37, pin holding members 38 and 39, pin holding members 40 and 41, and pin holding members 42 are provided on both sides in the circumferential direction of the front side surfaces of the second end plate members 24 to 27, respectively. , 43 are provided.

Here, between the pin holding members 29 and 30 provided between the opposing side portions of the adjacent first end plate members 20 to 23, between the pin holding members 31 and 32, between the pin holding members 33 and 34, and the pin holding member 35, 28, between the pin holding members 37, 38 provided between the opposing side portions of the adjacent second end plate members 24-27, between the pin holding members 39, 40, between the pin holding members 41, 42, and pins A guide pin 45 having a spring 44 is inserted between the holding members 43 and 36, and the guide pin 45 is fixed by tightening a nut 46 into a male screw portion formed at the tip of the guide pin 45. Accordingly, the attachments 16 to 19 are biased by the springs 44 so as to be radially reduced in diameter, and are connected by the guide pins 45.
Then, the attachment 17 scaled stroke are arranged on the outside of the attachment 16 and scaling the stroke S ₁ of the segment 12 which is arranged outside the segment 11 of S _2, guide pin 45 which connects the base side of the attachment 16, 17 The pin holding members 29 and 30 to be inserted are pivotally supported by the first end plate members 20 and 21 by the pins 47, and the pin holding members through which the guide pins 45 connecting the front sides of the attachments 16 and 17 are inserted. Reference numerals 37 and 38 denote pins 48 that are pivotally supported by the second end plate members 24 and 25 so as to be rotatable. Further, in the attachment 19 disposed on the outer side of the attachment 16 and scaling the stroke _{S 1} of the segment 14, the pin holding member 35,28 which guide pin 45 which connects the base side attachment 19,16 are inserted in the pin 47 first Pin holding members 43, 36 through which guide pins 45 connecting the front sides of the attachments 19, 16 are pivotally supported by the end plate members 23, 20 so as to be rotatable are pins 48, and the second end plate member 27. , 24 are pivotally supported.

As shown in FIGS. 1 and 2, the central portions on the inner surfaces of the segments 11 to 14 arranged at intervals of 90 ° in the circumferential direction are inclined portions 50, 51, with the same pitch in the axial direction (longitudinal direction). 52, 53 are formed, and wedge members 54, 55, 56, 57 arranged at intervals of 90 ° in the circumferential direction are arranged on the inclined portions 50-53, respectively. A connecting member 58 is disposed on the front side of the wedge members 54 to 57, and the connecting member 58 is attached to the drive shaft 59 that penetrates the inside of the wedge members 54 to 57 disposed at intervals of 90 ° in the circumferential direction. Installed. With such a configuration, when the drive shaft 59 is moved in the longitudinal direction (axial direction), the wedge members 54 to 57 are synchronously moved in the longitudinal direction via the connection member 58, and the wedge members 54 to 57 are moved. Since the wedge portion moves while coming into contact with the inclined portions 50 to 53, the segments 11 to 14 expand and contract in the radial direction. Here, the shape of the wedge portions (not shown) provided in the inclined portions 51 to 53 and the wedge members 55 to 57 is made the same, and the shapes of only the wedge portions of the inclined portion 50 and the wedge member 54 are changed, thereby the segment 11. as same the scaling stroke _{S 1} of the other segments 12-14 with the exception, can be reduced only scaling stroke _{S 2} of the segment 11.

Further, as shown in FIGS. 2A and 2B, the bottom side of the groove 60 formed between the segment 11 and one adjacent segment 12 is provided to face the segment 11 in the radial direction. A gripper 62 is provided which is movable and sandwiches the distal end side of the steel strip 61 inserted from the groove 60 together with the segment 11. Here, on the inner surface side of the gripper 62, a plurality of inclined portions 62a are formed at the same pitch in the axial direction (longitudinal direction), and a wedge member 63 is disposed facing the inclined portion 62a. A flange (not shown) is provided on the leading end side of the wedge member 63 and is in contact with the connecting member 58 via a connecting member 65 in which a spring 64 is housed. Accordingly, the gripper 62 can be moved in the radial direction in accordance with the expansion / contraction of the segment 11. In addition, the angle of the wedge part formed in the inclination part 62a and the wedge member 63 is made larger than the angle of the wedge part formed in the inclination parts 51-53 and the wedge members 55-57. For this reason, the moving speed of the gripper 62 is larger than the moving speed of the segments 12 to 14, and the diameters of the segments 11 to 14 can be expanded in a state where the tip end side of the steel strip 61 inserted from the groove 60 is gripped by the gripper 62. it can. Here, when the diameters of the segments 11 to 14 are increased, the flange continues to be pressed from the connecting member 58 through the connecting member 65, but after the gripper 62 grasps the tip end side of the steel strip 61, the connecting member 65 is used. The movement of the gripper 62 is stopped by the contraction of the spring 64 provided on the steel plate 61, and the tip end side of the steel strip 61 is prevented from being gripped by an excessive load.

Then, the effect | action of the steel strip winding apparatus 10 which concerns on one embodiment of this invention is demonstrated.
As shown in FIG. 1, the attachments 16 to 19 that are urged so as to be radially reduced by the guide pins 45 and connected in a cylindrical shape are extrapolated from the front side of the annularly arranged segments 11 to 14. To do. And while making the base side projection part 66 formed in the inner peripheral side of the 1st end plate members 20-23 fit in the recessed part 67 provided in the rotation drive part which is not shown of the steel strip winding apparatus 10, it is 2nd A notch 68 formed from the inner peripheral side of each of the end plate members 24 to 27 to the outer side in the radial direction is inserted into a torque transmitting bolt 69 at the tip of each segment 11 to 14. Thereby, the torque applied to the segments 11 to 14 can be transmitted to the attachments 16 to 19 connected in a cylindrical shape. When the segments 11 to 14 are rotated, the segments 11 to 14 and the attachments 16 to 19 are rotated. Can be rotated integrally.

Next, the diameter of the segments 11 to 14 is increased while the distal end side of the steel strip 61 is inserted into the groove 60 and the drive shaft 59 is operated to grip the distal end side of the steel strip 61 with the gripper 62. Here, since each attachment 16-19 is connected with the guide pin 45 provided with the spring 44, if the diameter of the segments 11-14 expands, the attachment 16-19 arrange | positioned on the outer side of each segment 11-14 will be a spring. While shrinking 44, the diameter is expanded following the diameter expansion of the segments 11-14.
At this time, pin holding members 29 and 30, pin holding members 35 and 28, pin holding members 37, which hold guide pins 45 connecting the segments 11 and 14 with segments 12 and 14 having different diameter expansion strokes, 38 and the pin holding members 43 and 36 also have a diameter expansion stroke difference, and a shearing force acts on each guide pin 45.

However, the pin holding members 28 and 29 can be rotated in the first end plate member 20 and the pin holding members 30 and 35 can be rotated in the first end plate members 21 and 23 via the pins 47, respectively. The inserted guide pin 45 can be rotated. Further, the pin holding members 36 and 37 can be rotated in the second end plate member 24 and the pin holding members 38 and 43 can be rotated in the second end plate members 25 and 27 through the pins 48, respectively. The inserted guide pin 45 can be rotated in a plane including its axis.

Further, when the diameters of the segments 11 to 14 are reduced, the pin holding members 29, 30, 35, 28, 37, 38, 43, and 36 through which the guide pins 45 are inserted are rotated to rotate the pin holding members 29, The guide pin 45 inserted through 30, 35, 28, 37, 38, 43, 36 can be rotated. Thus, the movement of the attachments 17 and 19 arranged outside the segments 12 and 14 having a large expansion / contraction stroke can be prevented from being restricted by the attachment 16 arranged outside the segment 11 having a small expansion / contraction stroke. The attachments 16 to 19 can be moved in the radial direction respectively following the movement in the radial direction of -14.

As described above, the present invention has been described with reference to the embodiment. However, the present invention is not limited to the configuration described in the above-described embodiment, and the matters described in the scope of claims. Other embodiments and modifications conceivable within the scope are also included.

It is side sectional drawing of the steel strip winding apparatus which concerns on one embodiment of this invention. (A), (B) is the RR arrow sectional drawing of FIG. 1 at the time of diameter reduction and the time of diameter expansion, respectively. (A) and (B) are the PP and QQ arrow views of FIG. 1, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Steel strip winding device, 11-14: Segment, 15: Mandrel, 16: Attachment, 16a: Attachment main body, 17: Attachment main body, 17a: Attachment main body, 18: Attachment main body, 18a: Attachment main body, 19: Attachment, 19a : Attachment body, 20-23: First end plate member, 24-27: Second end plate member, 28-43: Pin holding member, 44: Spring, 45: Guide pin, 46: Nut, 47, 48 : Pin, 49: Bolt, 50-53: Inclined part, 54-57: Wedge member, 58: Connection member, 59: Drive shaft, 60: Groove, 61: Steel strip, 62: Gripper, 62a: Inclined part, 63 : Wedge member, 64: spring, 65: coupling member, 66: proximal projection, 67: recess, 68: notch, 69: torque transmission bolt

Claims (4)

In a steel strip winder having a mandrel with a plurality of segments arranged in a ring and radially expanding and contracting,
A plurality of arc-shaped attachments in a cross-sectional view are arranged in a cylindrical shape outside the segment, and the attachments are provided with pin holding members respectively provided on both the base side and the front side in the circumferential direction of each attachment. Energized so as to reduce the diameter in a radial direction by a guide pin having a spring to be inserted and connected in a cylindrical shape, and the attachments arranged outside the segments having different expansion / contraction strokes are connected in the attachment The steel strip winding device, wherein the pin holding member through which the guide pin is inserted is pivotally supported by the attachment supporting the pin holding member and is rotatable. The steel strip winding device according to claim 1, wherein a first end plate member projecting radially outward is provided on a base side of the attachment, and the pin holding member is a base side of the first end plate member. A steel strip winding device, characterized by being attached to the surface of the steel strip. 3. The steel strip winding device according to claim 1, wherein a second end plate member projecting radially inward is provided on a front side of the attachment, and the pin holding member is A steel strip winding device, wherein the steel strip winding device is attached to a front surface of the end plate member. The steel strip winding device according to any one of claims 1 to 3, wherein the expansion / contraction stroke of the other segments other than the one segment is the same among the segments, and the expansion / contraction of the one segment is the same. Larger than the stroke, the bottom side of the groove formed between the one segment and one of the other segments adjacent to the one segment is provided opposite to the one segment and is movable in the radial direction and inserted from the groove. A steel strip take-up device, wherein a gripper is provided for sandwiching the leading end side of the steel strip together with the one segment.

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