JP2010080589A - Spool for iron core winding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spool for iron core winding that is adaptive to iron cores of various sizes without using a complicated expanding/contracting mechanism. <P>SOLUTION: The spool for iron core winding includes a reference spool 12 having an external diameter adapted to a minimum iron core having a minimum internal diameter among iron cores to be wound, and a spool attachment 13 fitted to the reference spool detachably while made to abut on an outer circumference of the reference spool 12 when an iron core having a larger internal diameter than the minimum iron core. The reference spool 12 has a reference spool body 41 having a groove portion 41a at a part close to an outer circumference, a spool movable portion 42 provided to be easily displaced in a radius direction of the reference spool body in a groove portion of the reference spool body, and a movable portion fixing mechanism for fixing the spool movable portion 42 at an iron core support position. The spool attachment 13 has a first attachment 61 fixed to an outer circumference of the reference spool body and a second attachment 62 fixed to an outer circumference of the spool movable portion 42. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a winding frame that is attached to a wound core manufacturing apparatus and is used for winding a wound core.

  As an iron core used for a transformer, a lap joint type wound core having a structure in which a plurality of iron core blocks formed by winding a steel strip in a circular shape so as to form one turn is laminated in a radial direction is used. Yes. As an apparatus for manufacturing this type of wound iron core, for example, an apparatus disclosed in Patent Document 1 is known.

  The winding core manufacturing apparatus shown in Patent Document 1 has a cylindrical outer peripheral surface and is rotatably supported, and is formed in a loop shape and travels along the outer periphery of the winding frame by a pulley. The winding belt guided as described above and a drive mechanism for driving the winding belt are provided. In this wound core manufacturing apparatus, a series of core blocks constituting the wound core are formed by laminating a predetermined number of steel strips cut to a predetermined length while increasing the length by the increase in circumferential length due to the plate thickness. A series of unit laminated bodies corresponding to those developed on a plane are formed, and these unit laminated bodies are sequentially wound between a winding frame and a winding belt, and are formed into a circular shape while forming an outer peripheral surface of the winding frame. A circular wound iron core is manufactured by sequentially laminating on top.

  As a winding frame used for winding a wound iron core, as shown in Patent Document 2, a cylindrical winding that is divided in the circumferential direction by a notch extending in the axial direction and whose radial dimension can be adjusted. What is provided with the frame structure and the expansion / contraction mechanism which is arrange | positioned inside this winding frame structure and changes the outer diameter of this winding frame structure is used.

  Although no suitable patent document could be found, as shown in FIGS. 17A and 17B, a substantially semi-cylindrical outer peripheral side wall 102 is integrally formed on the outer periphery of the semi-circular hub 101. A winding frame 1 having a structure in which two formed winding frame halves 103 are provided and the hubs 101 and 101 of both winding frame halves 103 and 103 are opposed to each other and connected by connecting plates 104 and 104 is used.

  The illustrated reel 1 is used by being attached to a rotatable main shaft 201 of a wound core winding device 2. In the example shown in the drawing, a reel mounting portion 202 having a frustoconical projection 202a and a flange 202b projecting radially from the outer periphery of the large diameter portion of the projection is provided at the tip of the main shaft 201. It has been. The hub 101 of each reel half 103 is provided with a boss 105 having a taper surface 105 a formed on the inner periphery, and the inner taper 105 a of the boss 105 of each reel half 103 is formed at the tip of the spindle 201. The protrusion 202a is fitted to the tapered surface 202a1. The boss portion 105 of each winding frame half 103 is provided with a pair of long holes 105b and 105b, and the bolts 106 and 106 penetrating these long holes are screwed into the flange portion 202b at the tip of the main shaft 201, thereby each winding. The frame half 103 is fastened to the main shaft 201. In FIGS. 17A and 17B, reference numeral 3 denotes a wound iron core wound around the outer periphery of the reel 1.

  The reel 1 shown in FIG. 17 has both reels when the positions of both reel halves 103 and 103 are adjusted so that the outer peripheral surfaces of the reel halves 103 and 103 are located on the same cylindrical surface. A predetermined gap g1 is formed between the halves 103 and 103.

  When the reel 1 shown in FIG. 17 is used, the winding core 3 is wound around the outer periphery of the reel 1 and the butted portion of the outermost steel strip is welded, and then the connecting plates 104 and 104 and one of the connecting plates 104 and 104 are welded. As shown in FIGS. 18A and 18B, the upper half of the winding frame half 103 is fastened to the flange 202b at the tip of the main shaft 201 by uncoupling the winding half 103. The bolt 106 is loosened. When the bolt 106 is loosened, due to the mass of the iron core 3, the upper reel half 103 slides along the tapered surface 202a1 at the tip of the main shaft 201 and is displaced downward. The gap is reduced to g2 (<g1), and a gap G is formed between the outer peripheral surface of the lower winding frame half 103 and the wound core 3. In this manner, the wound core 3 is removed from the reel 1 with the gap G formed between the outer peripheral surface of the lower reel half 103 and the wound core 3.

  When the wound core is used as the core of the transformer, the circular wound core 3 manufactured as described above is formed into a rectangular shape in order to increase the space factor of the core in the window portion of the winding. When forming a circular wound core into a rectangular shape, for example, as shown in Patent Document 3, a metal fitting is inserted inside the circular wound core to secure the inner dimension of the iron core. The iron core is bound from the outside by a band and the wound iron core is formed into a rectangular shape. Thus, after shape | molding a wound iron core in a rectangular shape, a wound iron core is put into an annealing furnace with a shaping | molding metal fitting and a steel strip band, and is annealed.

When a three-leg transformer core for a three-phase transformer is constructed using a rectangular wound core, two rectangular inner sides are disposed inside the window portion of the rectangular outer wound core constituting the outermost peripheral portion of the iron core. Insert the winding cores side by side.
JP-A-7-335466 JP-A-7-326532 Japanese Patent Laid-Open No. 3-125415

  Since the winding frame shown in Patent Document 2 uses an expansion / contraction mechanism having a complicated structure, its manufacture is troublesome. Further, in the case of the structure shown in Patent Document 2, it is necessary to change the diameter of the cylindrical winding frame every time the inner diameter of the wound core is different and to change the dimensions of each part of the expansion / contraction mechanism. For this reason, it is necessary to recreate the entire reel every time the wound core has a different diameter, and the cost of the reel cannot be avoided. Furthermore, in the case of the structure shown in Patent Document 2, it is necessary to manufacture and store various types of reels having different dimensions in preparation for winding various wound cores having different dimensions. Therefore, there is a problem that a large space is required for storage.

  According to the structure shown in FIGS. 17 and 18, a complicated expansion / contraction mechanism is not required, but Patent Document 2 discloses that a different winding frame needs to be manufactured every time the wound core has different dimensions. It was similar to that shown. Moreover, in the reel shown in FIG.17 and FIG.18, since the reel was divided | segmented into two reel half halves in the radial direction in the center part, the precision of the outer diameter dimension of the reel might be deteriorated. .

  An object of the present invention is to provide a winding core that can handle various sizes of wound cores without using a complicated expansion / contraction mechanism or re-creating the entire device every time the wound core has different dimensions. The object is to provide a core winding reel.

  The present invention relates to a winding frame used when winding a circular winding core, and the winding frame according to the present invention is the smallest winding having the smallest inner diameter among winding cores of various sizes to be wound. A reference winding frame having an outer diameter suitable for the iron core, and a reel attachment that is detachably attached to the outer periphery of the reference winding frame when manufacturing a winding core having an inner diameter larger than the minimum winding core.

  The above-described reference winding frame includes a reference winding body having at least one groove portion opened on the outer peripheral side and both sides in the axial direction at a portion near the outer periphery, an iron core support position and the iron core support in the groove portion of the reference winding body A reel movable portion provided so as to be able to displace between a retracted position set radially inward of the position, and a releasable movable portion fixing mechanism for fixing the reel movable portion to the iron core support position The minimum winding core to be wound with the outer peripheral surface of the reference reel main body and the outer peripheral surface of the reel movable portion being on the same cylindrical surface when the reel movable portion is at the iron core support position. It is configured to support from the inside.

  The reel attachment is aligned with the first attachment that is fixed to the outer periphery of the reference reel main body and the first attachment that is fixed to the outer periphery of the reel movable portion and the reel movable portion is at the iron core support position. A second attachment to be arranged, and configured to support a wound iron core around which the outer peripheral surface of both attachments are wound from the inside when the first attachment and the second attachment are aligned and arranged. ing.

  As described above, a winding frame for winding a winding core is constituted by a reference winding frame of a size suitable for the minimum winding core and a winding attachment attached to the reference winding frame according to the size of the winding core to be wound. Then, since the reference winding frame becomes a common part for the various wound cores to be wound, the component parts of the winding frame can be made common to reduce the manufacturing cost of the winding frame.

  Further, as described above, when the winding core winding reel is configured by the reference winding frame and the winding frame attachment attached to the reference winding frame according to the size of the winding core to be wound, windings of various sizes can be formed. When winding an iron core, it is only necessary to store one standard winding core common to all the winding cores and a reel attachment with different dimensions according to the inner diameter of the winding core. The storage space for the reel can be saved because it is much smaller than the entire reel. Therefore, it is possible to prepare in advance a winding frame suitable for various types of wound cores than before, and to shorten the delivery time of the wound cores.

  Furthermore, when it becomes necessary to wind a wound core with a new dimension that cannot be handled by the stored reel attachment, only the reel attachment needs to be newly manufactured, so the reel can be manufactured in a short period of time. It is possible to shorten the delivery time of the wound core.

  In addition, as described above, the reference winding frame includes a reference winding frame main body having at least one groove portion near the outer periphery, an iron core support position in the groove portion of the reference winding frame body, and a radially inner side from the iron core support position. And a removable movable part fixing mechanism for fixing the reel movable part to the iron core support position. The reel attachment is fixed to the outer periphery of the reference reel main body, and the reel attachment is fixed to the outer periphery of the reel movable portion and aligned with the first attachment when the reel movable portion is at the iron core support position. As a configuration including the second attachment to be arranged, so that the wound iron core around which the outer peripheral surface of both attachments is wound is supported from the inside when the first attachment and the second attachment are aligned and arranged. When formed, it is possible without using a complicated decreasing mechanism, by reducing the portion of the diameter of the reel to perform the task of removing the wound core from the winding frame. Since a complicated expansion / contraction mechanism is not used, the cost of the reel can be reduced.

  In the present invention, since the reel attachment is attached to the outer periphery of the reference reel that is not divided in the radial direction (the outer diameter is constant), the reel attachment is accurately positioned and attached in the radial direction of the reel. It is possible to prevent the accuracy of the outer diameter of the winding frame from being lowered.

  In a preferred aspect of the present invention, the reference reel main body has a disk-shaped hub whose central portion is attached to the main shaft of the wound core manufacturing apparatus, and a cylindrical peripheral wall portion provided on the outer peripheral portion of the hub. The groove is formed in a state in which a part of the peripheral wall part and a part of the part near the outer periphery of the hub are cut out.

  In this case, the reel movable portion of the reference reel has an outer periphery when the plate surface is parallel to the plate surface of the hub and the substrate portion disposed in the groove and when the reel movable portion is at the iron core support position. An arc-shaped outer peripheral side wall, the surface of which is disposed on the same cylindrical surface as the outer peripheral surface of the peripheral wall portion of the reference reel body, and which forms the cylindrical core support surface together with the outer peripheral surface of the peripheral wall portion of the reference reel main body; It is set as the structure provided with.

  In addition, in order to support the reel movable portion in a state in which it can be displaced in the radial direction of the reference reel main body, at least a pair of support plates facing each other in the axial direction of the reference reel is provided with the hub therebetween. The support plate is fixed to the hub, and the substrate portion of the winding frame movable portion is inserted between the pair of support plates and supported so as to be movable in the radial direction of the reference winding frame.

  In order to constitute the movable portion fixing mechanism, a round hole having a uniform inner diameter along the axial direction is provided through one of the pair of support plates, and screw holes aligned with the round holes are provided on the pair of support plates. Provided on the other side. A taper hole that can be aligned with the round hole and the screw hole is provided in the substrate portion of the winding frame movable portion with the end on the large diameter side facing the support plate on which the round hole is formed. In addition, the front end side has a shaft portion that is rotatably fitted in the round hole, a taper portion that is integrally formed with the shaft portion and is fitted into the taper hole, and a screw portion that is screwed into the screw hole. An operation shaft having an operation handle portion on the rear end side is provided.

  A movable part fixing mechanism is configured by the operation shaft and the pair of support plates. By rotating the operation shaft in one direction with the operation handle portion, the screw portion is screwed into the screw hole and the taper portion becomes the taper hole. When the engaged state is established, the reel moving part is fixed at the iron core support position, and when the operating shaft is rotated in the other direction and the tapered part is pulled out from the tapered hole, the reel moving part is It is configured so that it can be displaced to the retracted position.

  If comprised as mentioned above, in order to make it possible to remove the winding frame from the wound winding core, between the pair of support plates fixed to the hub of the reference winding frame body, the substrate portion provided in the winding frame movable part is provided. It is only necessary to provide a simple mechanism that movably supports the reference reel body and a releasable movable part fixing mechanism that fixes the reel movable part to the iron core support position. Since it is not necessary to provide an expansion / contraction mechanism, the structure of the reel can be simplified and the cost can be reduced.

  In a preferred aspect of the present invention, two pairs of the pair of support plates are provided at an interval in the width direction of the groove portion of the reference winding frame body.

  As described above, when two pairs of support plates are provided at intervals in a direction perpendicular to the radial direction of the reference reel body, the reel movable portion of the reference reel can be supported in a balanced manner.

  In another preferred aspect of the present invention, only one pair of the pair of support plates is provided at the center portion in the width direction of the groove portion of the reference reel body.

  As described above, when only one pair of support portions is provided, the number of parts can be reduced and the configuration can be simplified.

  In a preferred aspect of the present invention, three positioning grooves extending in parallel to the circumferential direction of the reference winding frame body are provided respectively at the central portion in the axial direction of the outer peripheral surface of the reference winding frame body and the portions near both ends. In addition, three positioning grooves that are respectively aligned with the three positioning grooves of the reference reel main body are provided on the outer peripheral surface of the reel movable portion. In this case, the first attachment is a first pair of arcuate pairs in which the inner peripheral portion is fitted and positioned in two positioning grooves provided in the portions near the both ends of the outer peripheral surface of the reference reel body. 1 side attachment, and the arc-shaped 1st main attachment which an inner peripheral part fits and is positioned by the positioning groove provided in the center part of the outer peripheral surface of a reference | standard reel frame main body. The second attachment is a second pair of arcuate pairs in which the inner peripheral part is fitted and positioned in two positioning grooves provided on the outer peripheral surface of the reel moving part near the both ends in the axial direction. And the arcuate second main attachment that is positioned by fitting the inner peripheral portion into the central groove on the outer peripheral surface of the reel movable portion.

  When comprised as mentioned above, each 1st side part attachment and 1st main attachment which comprise a 1st attachment can be divided | segmented into the some arc-shaped attachment structural member arranged in the circumferential direction of a reel. it can. Each first side attachment and the first main attachment are positioned in contact with the outer periphery of the reference reel, so that even if these members are divided into a plurality of attachment components, the outer dimensions of the reel The accuracy of is not reduced. If each of the first side attachments and the first main attachment is divided into a plurality of arcuate attachment components arranged in the circumferential direction of the winding frame, attachment of the attachments can be facilitated.

  As described above, the three positioning grooves that extend in the circumferential direction are provided at the central portion in the axial direction of the outer peripheral surface of the reference reel body and the portions near both ends, respectively. A pair of first side attachments are fitted and positioned in two positioning grooves provided near the both ends, and the positioning groove provided in the center portion of the outer peripheral surface of the reference reel body is 1 The first main attachment is fitted and positioned, and the reel is movable by providing three positioning grooves on the outer peripheral surface of the reel movable portion so as to align with the three positioning grooves of the reference reel body, respectively. A pair of second side attachments are fitted into the two positioning grooves near the both ends in the axial direction of the outer peripheral surface of the part, and the second main attachment is fitted into the central groove of the outer peripheral surface of the reel movable part. If the structure is positioned by combining, Since axially three attachments are arranged, without the use of large attachments, the wound core during winding the wound core can be supported stably.

  In another preferred aspect of the present invention, a positioning groove extending in the circumferential direction of the reference reel main body is provided at the central portion in the axial direction of the outer peripheral surface of the reference reel main body, and the outer periphery of the reel movable portion. Positioning grooves that align with the positioning grooves of the reference reel body are provided on the surface. In this case, the first attachment is configured by an arc-shaped first attachment component member that is positioned by fitting an inner peripheral portion into a positioning groove on the outer peripheral surface of the reference reel body, and the second attachment is: It is comprised by the arc-shaped 2nd attachment structural member by which an inner peripheral part is fitted and positioned by the positioning groove | channel of the outer peripheral surface of a reel moving part.

  If comprised as mentioned above, since a 1st attachment and a 2nd attachment can be comprised with few members, the structure of a reel can be simplified.

  In another preferred embodiment of the present invention, the winding core winding frame has an outer diameter dimension suitable for a minimum winding core having a minimum inner diameter among various sizes of winding cores to be wound, When manufacturing a reference winding frame that has at least one groove on the outer peripheral side and both sides in the axial direction at the outer peripheral portion, and a winding core having a larger inner diameter than the minimum winding core, it can be attached to and detached from the outer periphery of the reference winding frame. A core support that has a reel attachment to be attached and a portion that can be displaced in the radial direction of the reference reel within the groove of the reference reel, so that the outer peripheral surface is in contact with the inner peripheral surface of the wound core to be wound. A reel movable portion provided so as to be displaceable between a position and a retracted position where the outer peripheral surface is retracted to the inner diameter side of the position where the outer peripheral surface is in contact with the inner peripheral surface of the wound iron core, and the reel movable portion It is configured to include a releasable movable part fixing mechanism that fixes to the iron core support position.

  The winding frame according to the present invention is to configure each rectangular wound core of a three-phase transformer core having a structure in which two rectangular inner wound cores are inserted side by side inside one rectangular outer wound core. This is particularly useful when winding the circular wound core used. In this case, the minimum wound core is a circular wound core formed in a rectangular shape when forming the inner wound core, and the wound core having an inner diameter larger than the minimum wound core is rectangular when configuring the outer wound core. It is a circular wound iron core formed into a shape.

  Each rectangular wound core that constitutes the three-phase transformer core is formed by forming a circular wound core formed by using the winding frame according to the present invention into a rectangular shape and annealing.

  As described above, according to the first to sixth aspects of the invention, the reference winding frame having a size suitable for the minimum winding core and the reference winding frame is attached according to the size of the winding core to be wound. A winding core winding frame is configured with the winding frame attachment, and is used as a common component for various winding cores to be wound with the reference winding frame. The production cost of the reel can be reduced.

  Further, in the present invention, the winding core winding winding frame is configured by the reference winding frame and the winding frame attachment attached to the reference winding frame according to the size of the winding core to be wound. In order to wind an iron core, a reel is composed of one reference wound iron core and a reel attachment that is much smaller than the entire reel, and only by changing the reel attachment, Since it can cope with winding of a wound core with a diameter, it is possible to save the storage space for the reel. Therefore, it is possible to prepare in advance a winding frame suitable for various types of wound cores than before, and to shorten the delivery time of the wound cores.

  Furthermore, according to the present invention, when it is necessary to wind a wound iron core having a new size that cannot be handled by the stored reel attachment, only the reel attachment needs to be newly manufactured. It is possible to shorten the delivery time of the wound iron core by making the frame in a short time.

  Further, in the present invention, the reference winding frame includes a reference winding body having at least one groove in a portion near the outer periphery, an iron core support position in the groove portion of the reference winding body, and a radially inner side from the iron core support position. And a removable movable part fixing mechanism for fixing the reel movable part to the iron core support position. The reel attachment is fixed to the outer periphery of the reference reel main body, and the reel attachment is fixed to the outer periphery of the reel movable portion and aligned with the first attachment when the reel movable portion is at the iron core support position. As a configuration including the second attachment to be arranged, the wound iron core around which the outer peripheral surfaces of both attachments are wound is supported from the inside when the first attachment and the second attachment are aligned. Since configuration, without using a complicated decreasing mechanism, by reducing the portion of the diameter of the bobbin, it is possible to perform the task of removing the wound core from the winding frame. Therefore, according to the present invention, the structure of the reel can be simplified and the cost can be reduced.

  In the present invention, since the reel attachment is attached to the outer periphery of the reference reel that is not divided in the radial direction (the outer diameter is constant), the reel attachment can be accurately positioned in the radial direction of the reel. . Therefore, according to the present invention, the accuracy of the outer diameter of the winding frame can be prevented from being lowered, and the circular wound iron core can be wound with high accuracy.

  According to the invention described in claim 7, the wound core winding reel has an outer diameter dimension suitable for the smallest wound core having the smallest inner diameter among various sizes of wound cores to be wound. When manufacturing a reference winding frame having at least one groove portion opened on the outer peripheral side and both sides in the axial direction at a portion near the outer periphery, and a winding core having an inner diameter larger than the minimum winding core, Removably attached reel attachment and in a groove part of the reference reel, there is a portion that can be displaced in the radial direction of the reference reel, and the outer peripheral surface is in contact with the inner peripheral surface of the wound core to be wound. A winding frame movable portion provided so as to be displaceable between an iron core support position and a retracted position where the outer peripheral surface is retracted to the inner diameter side of the position where the outer peripheral surface is in contact with the inner peripheral surface of the wound core; It has a configuration with a releasable movable part fixing mechanism that fixes the movable part to the iron core support position Runode, used as common components for various wound core to wound around the reference spool, achieving commonality of components of the winding frame, it is possible to reduce the manufacturing cost of the spool.

  According to the seventh aspect of the present invention, in order to wind the wound cores of various sizes, one reference wound core common to the wound cores of various diameters to be wound and the winding frame Since it is only necessary to store the reel moving part and reel attachment that can be configured to be much smaller than the whole, it is possible to save the reel storage space and fit more types of cores than before. The winding frame to be prepared is prepared in advance, and the delivery time of the wound core can be shortened.

  Furthermore, according to the invention described in claim 7, when it is necessary to wind a wound iron core having a new size that cannot be handled by the stored reel attachment, only the reel attachment and the reel movable portion are required. Therefore, it is possible to shorten the delivery time of the wound core by making the winding frame in a short period of time.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. 1 to 12 show a first embodiment of the present invention. FIG. 1 is a front view schematically showing an example of the configuration of a wound core manufacturing apparatus using a winding frame according to the present invention. 2 (A) is a front view showing the reel according to the first embodiment of the present invention, FIG. 2 (B) is a sectional view taken along the line IIB-IIB in FIG. FIGS. 4A and 4B are a front view and a top view, respectively, of a reference reel constituting a part of the reel of the present embodiment. 5A is a front view of a reference reel body used in the present embodiment, FIG. 5B is a cross-sectional view taken along the line VB-VB in FIG. 6A, and FIGS. FIG. 7A is a front view showing a first main attachment attached to the outer periphery of the reference reel body in the present embodiment, and FIG. 7A is a front view and a side view of the reel movable portion of the reference reel used in the embodiment. FIG. 8B is a cross-sectional view taken along the line VIIB-VIIB in FIG. 8A, and FIG. 8A is a front view showing the first side attachment attached to the outer periphery of the reference reel body in this embodiment. B) is a sectional view taken along line VIIIB-VIIIB in FIG. Further, FIG. 9A is a front view showing a second main attachment attached to the outer periphery of the reel movable portion of the reference reel in this embodiment, and FIG. 9B is an IXB-IXB of FIG. FIG. 10 (A) is a sectional view of the line, and FIG. 10 (A) is a front view showing a second side attachment attached to the outer periphery of the reel movable portion of the reference reel in the present embodiment, and FIG. It is the XB-XB sectional view taken on the line. Moreover, FIG. 11 (A) is a front view showing a state in which the wound iron core is wound around the winding frame of the present embodiment, FIG. 11 (B) is a cross-sectional view taken along the line XIB-XIB in FIG. FIG. 12A is a front view showing the state of the reel when the reel is removed from the reel in this embodiment, and FIG. 12B is along the XIIB-XIIB line in FIG. Sectional view and FIG. 10C are enlarged views of the main part of FIG.

  The configuration of the wound core manufacturing apparatus shown in FIG. 1 is substantially the same as that shown in Patent Document 1 except for the winding frame. First, an example of the configuration of a wound core manufacturing apparatus using a winding frame according to the present invention will be described. In FIG. 1, 10 is supported by a slider device (not shown) so as to be movable in the horizontal direction (arrow X direction in FIG. 1). A rotating shaft 11 is rotatably supported by the frame, and 11 is a winding frame attached to the rotating shaft 10.

  Reference numeral 20 denotes an endless winding belt, and this belt is appropriately disposed around the winding frame 11, a pair of guide pulleys 21 and 22 supported at a fixed portion near the winding frame 11, and the winding frame 11. .., One drive pulley 24 and a pulley 27 rotatably supported by a movable frame 26 of an accumulator 25. A movable frame 26 of the accumulator is connected to a piston rod of a cylinder 29 attached to a fixed frame (not shown), and pulleys 27 and 27 are urged rightward in the drawing by the cylinder 29 to apply tension to the belt 20. .

  The driving pulley 24 is connected to a rotating shaft of a belt driving motor (not shown) via a belt transmission mechanism or the like, and the winding belt 20 is driven in the direction of the arrow R shown in the drawing by the rotation of the driving pulley 24 so that the winding frame 11 is shown in the drawing. It is rotationally driven in the counterclockwise direction (arrow CCL direction). A winding device 30 is constituted by the winding belt 20, the winding frame 11, the pulleys 21, 22, 23, 24, 27, the cylinder 29, and a belt driving motor (not shown).

  In this winding device, the inner side of the belt 20 along the outer periphery of the pulleys 21 and 22 is a steel strip receiving position P, and the steel strip SS is supplied to the steel strip receiving position P. When the steel strip SS is supplied to the steel strip receiving position P, the steel strip is wound between the winding belt 20 and the winding frame 11 and wound around the outer periphery of the winding frame 11. The wound steel core 31 is formed on the outer periphery of the winding frame 11 by sequentially winding the unit steel strip SS having a predetermined length between the winding belt 20 and the winding frame 11. As the diameter of the wound core 31 increases, the winding frame 11 is displaced rightward in FIG. 1, and the pulleys 27, 27 of the accumulator 25 are displaced leftward in the drawing.

  In order to supply the steel strip SS to the winding device 30, a feed roller 32 that is rotationally driven by a motor (not shown) behind the steel strip receiving position P of the winding device 30 and the steel strip SS to the feed roller 32. A steel strip feeder 34 provided with a pressing roller 33 for pressing is provided. The steel strip feeder 34 feeds the steel strip SS unwound from the steel strip roll by an uncoiler (not shown) toward the steel strip receiving position P of the winding device 30. Guide plates 35 and 36 for guiding the steel strip SS fed by the steel strip feeder 34 toward the steel strip receiving position P are provided near the pulleys 21 and 22.

  In the present embodiment, a flying shear 37 having an upper blade 38 and a lower blade 39 is disposed between the steel strip feeder 34 and the winding device 30, and the steel strip SS fed by the steel strip feeder 34 is provided. The winding device 30 is provided between the upper blade 38 and the lower blade 39. The flying shear 37 includes a drive mechanism that drives an upper blade 38 and a lower blade 39 using a shear motor (not shown) as a drive source, and the feeding direction of the steel strip SS from the home position where the upper blade 38 and the lower blade 39 are set. Are moved in the same direction at the same speed as the steel strip SS, and then a flying operation for returning to the home position is performed, and the upper blade 38 and the lower blade 39 are moved at the same speed as the steel strip SS. In the process of moving in the direction, a cutting operation is performed in which one of the upper blade 38 and the lower blade 39 is displaced to the other side at a predetermined cutting position to cut the traveling steel strip SS.

  In the wound iron core winding device shown in FIG. 1, an uncut steel strip SS supplied from an uncoiler (not shown) is fed to the winding device 30 through the feed roller 32 and the presser roller 33. When the tip of the steel strip SS reaches the cutting position of the flying shear 37, measurement of the length of the steel strip SS is started. When the leading end of the steel strip SS reaches the steel strip receiving position P of the winding device 30, the leading end of the uncut steel strip SS is wound between the winding belt 20 and the winding frame 11. When the feed length of the steel strip SS wound between the winding belt 20 and the winding frame 11 reaches a predetermined cutting length, the flying shear 37 cuts the steel strip SS. Thereby, the first unit steel strip is formed, and this unit steel strip is wound around the winding device 30. The following uncut steel strip SS follows the preceding unit steel strip without stopping, and is wound on the winding belt 20 and the reel 11 when the steel strip receiving position P is reached. It is wound between the steel strips of the eyes and wound on the first unit steel strip that has already been wound. When the feed length of the uncut steel strip SS wound between the winding belt 20 and the steel strip wound around the winding frame 11 reaches a predetermined cutting length, the flying shear 37 cuts the steel strip SS. . As a result, a second unit steel strip is formed. This unit steel strip is wound around the first unit steel strip that has already been wound. The subsequent uncut steel strip SS follows the preceding unit steel strip without stopping, and the unit steel wound around the winding belt 20 and the outer periphery of the winding frame 11 when the steel strip receiving position P is reached. It is caught between the obi. By repeating these operations, the uncut steel strip SS is wound into the winding device, and when the feed length of the steel strip reaches a predetermined cutting length, the steel strip is cut and unit steel strips are sequentially Will be formed. The apparatus is stopped when it is detected that the thickness of the wound unit steel strip has reached a predetermined value.

  2 to 12, the configuration of the reel 11 used in this embodiment is shown in detail. The reel 11 used in the present embodiment is a reel used when winding a circular wound iron core. As shown in FIG. 2, in the present embodiment, the reel 11 is wound. A reference winding frame 12 having an outer diameter suitable for a minimum winding core having a minimum inner diameter among winding cores of various sizes, and a reference winding for manufacturing a winding core having an inner diameter larger than the minimum winding core. It consists of a reel attachment 13 attached to the outer periphery of the frame 12. The reel attachment 13 is detachably attached to the reference reel 12 while being in contact with the outer periphery of the reference reel 12 and positioned in the radial direction of the reference reel 12.

  As shown in FIG. 2 and FIG. 4, the reference reel 12 has a substantially U-shaped groove 41a that is open on the outer peripheral side and both sides in the axial direction at a portion near the outer periphery. A reel moving part provided so as to be able to displace between the main body 41 and the iron core support position and the retracted position set on the inner side in the radial direction from the iron core support position in the groove 41a of the reference reel main body 41 42.

  As shown in FIGS. 2, 4, and 5, the reference reel body 41 has a disk-shaped hub 43 whose center is attached to the main shaft 10 of the wound core manufacturing apparatus, and an outer peripheral portion of the hub 43. The groove portion 41 a is formed in a state in which a part of the peripheral wall portion 44 and a portion near the outer periphery of the hub 43 are notched. Therefore, the peripheral wall portion 44 is not a complete cylinder, but has a circular arc shape with a part cut away.

  The main shaft 10 is rotatably supported by a movable frame 40 supported so as to be movable in a horizontal direction perpendicular to the paper surface of FIG. 2B, and a tapered surface 45a1 is formed on the outer periphery at the tip. There is provided a reel attachment portion 45 including a frustoconical protrusion 45a and a flange 45b protruding radially from the outer periphery of the large diameter portion of the protrusion.

  A thick boss portion 43a is formed at the center of the hub 43, and a tapered hole 43a1 for fitting a tapered surface 45a1 formed at the tip of the main shaft 10 is formed at the inner periphery of the boss portion 43a. . When the tapered surface 45a1 on the outer periphery of the protrusion 45a at the tip of the main shaft 10 is fitted into the tapered hole 43a1 of the boss portion 43a of the hub, the reference reel body 41 is arranged in a state of sharing the central axis with the main shaft 10. The screw 46 passing through the screw insertion hole 43a2 provided in the boss portion 43a is screwed into the screw hole provided in the flange portion 45b at the tip of the main shaft, whereby the reference reel body 41 is It is fastened to the reel attachment portion 45 at the tip of the main shaft 10. The hub 43 of the reference reel body 41 is formed with an appropriate number (five in the illustrated example) of through-holes 43c used for hooking hoist chain hooks or the like for lifting the reel when the reel is removed from the iron core. Has been.

  As shown in FIGS. 4 and 6, the reel movable portion 42 of the reference reel 12 is disposed in the groove 41 a with the plate surface parallel to the plate surface of the hub 43 of the reference reel body 41. The substrate portion 47 and the outer peripheral side wall portion 48 fixed to the outer peripheral side end portion of the substrate portion 47 located on the outer peripheral side of the reference winding frame 12 are provided.

  The outer peripheral side wall portion 48 of the winding frame movable portion 42 is formed to have an outer peripheral surface 48 a having the same radius of curvature as the outer peripheral surface 44 a of the peripheral wall portion 44 of the reference winding frame main body 41. When the reel movable portion 42 is in the iron core support position (the position shown in FIGS. 2, 4, and 11), the outer peripheral surface 48 a of the outer peripheral side wall 48 is the outer periphery of the peripheral wall 44 of the reference reel main body 41. When the surface 44a is disposed on the same cylindrical surface as the disposed cylindrical surface and is in the retracted position, the outer peripheral surface 48a is radially inward of the position of the outer peripheral surface 44a of the reference reel body 41. 2, 4, and 11, the outer peripheral side wall 48 of the reel movable portion 42 is located when the reel movable portion 42 is in the iron core support position, as shown in FIGS. 2, 4, and 11. The outer peripheral surface 48a and the outer peripheral surface 44a of the peripheral wall portion 44 of the reference reel body 41 constitute a cylindrical core support surface that contacts the inner periphery of the wound core and supports the wound core from the inside. It has become so.

  In this embodiment, the pair of support plates 51 and 52 that are opposed to each other in the axial direction of the reference reel 12 with the hub 43 interposed therebetween are supported in order to support the reel movable portion 42 movably on the reference reel main body 41. Is provided. In the illustrated example, these two pairs of support plates 51 and 52 are arranged at an interval in the width direction of the groove 41a. In this specification, the direction of the groove 41a along the direction along the plate surface of the hub 43 and perpendicular to the radial direction of the reference reel body 41 is defined as the width direction of the groove 41a.

  In the illustrated example, the two pairs of support plates 51 and 52 are arranged symmetrically on both sides of a plane that includes the axis of the reference winding frame 12 and divides the groove 41a into two equal parts in the circumferential direction of the winding frame. Each pair of support plates 51 and 52 is in contact with a protrusion 43b (see FIG. 5) provided on the hub 43 of the reference reel main body 41 and positioned at a predetermined position. A pair of support plates 51 and 52 are fastened to each other by screws 53 that pass through the hub 43 of the main body 41 and screwed into the other support plate 52, and are fixed to the hub 43 of the reference reel main body 41. Yes.

  The winding frame movable portion 42 is inserted in the radial direction of the reference winding frame 12 with the substrate portion 47 being slidably inserted between the pair of support plates 51 and 52 and sandwiched between the support plates 51 and 52. It is supported movably. A round hole 51a having a uniform inner diameter along the axial direction is provided through one of the pair of support plates 51, 52, and a screw hole 52a aligned with the round hole 51a in the other 52 of the pair of support plates. A taper hole 47a (see FIG. 6) that can be aligned with the round hole 51a and the screw hole 52a is formed in the substrate part 47 of the winding frame movable part 42, and the round hole 51a is formed at the end on the large diameter side. It is provided toward the support plate 51 side.

  In addition, an operation shaft 55 that cooperates with the round hole 51a, the screw hole 52a, and the tapered hole 47a is provided in order to fix the reel moving part 42. The illustrated operation shaft 55 is screwed into a screw hole 52a, a shaft portion 55a that is rotatably fitted in the round hole 51a, a taper portion 55b that is integrally formed with the shaft portion and fitted in the taper hole 47a, and the screw hole 52a. And a handle portion 55d on the rear end side. In this example, the operation shaft 55 and the pair of support plates 51 and 52 constitute a releasable movable portion fixing mechanism that fixes the reel movable portion 42 to the iron core support position, and supports the screw portion 55c of the operation shaft 55. The screw 52a is screwed into the screw hole 52a of the plate 52, and the operation shaft 55 is rotated in one direction by holding the operation handle 55d, whereby the screw 55c is screwed into the screw hole 52a and the taper 55b is completely inserted into the taper hole 47a. When it is in the fitted state, the reel movable portion 42 is fixed at the iron core support position, and when the operating shaft 55 is rotated in the other direction and the tapered portion 55b is pulled out from the tapered hole 47a. The reel moving part 42 can be displaced to the retracted position.

  When winding a wound core having a larger inner diameter than the minimum wound core, the winding attachment 13 attached to the outer periphery of the reference reel 12 includes a first attachment 61 fixed to the outer periphery of the reference reel body 41, and a winding. The outer peripheral surface is fixed on the outer periphery of the frame movable portion 42 and the outer peripheral surface is on the same cylindrical surface as the cylindrical surface on which the outer peripheral surface of the first attachment 61 is disposed when the reel movable portion 42 is disposed at the iron core support position. And a second attachment 62 disposed at a position where the outer peripheral surface is retracted radially inward of the outer peripheral surface of the first attachment 61 when the reel movable portion 42 is disposed at the retracted position. It is made up of.

  As shown in FIG. 5, in the present embodiment, one positioning groove 44 c extending in the circumferential direction is provided in the center portion in the axial direction of the outer peripheral surface 44 a of the peripheral wall portion 44 of the reference reel body 41, and On both sides of the positioning groove 44c, two positioning grooves 44d and 44d are also provided, which are positioned in the vicinity of both ends in the axial direction of the peripheral wall portion 44 and extend in the circumferential direction. Further, on the outer peripheral surface 48a of the outer peripheral side wall portion 48 of the winding frame movable portion 42, three positioning grooves 48c, 48d, and 48d that are respectively aligned with the three positioning grooves 44c, 44d, and 44d of the reference winding frame body (FIG. 6). Reference) is provided.

  The first attachment 61 is positioned by fitting an inner peripheral portion thereof into two positioning grooves 41d and 41d provided in portions near both ends in the axial direction of the outer peripheral surface 44a of the reference reel body 41. A circle in which the inner peripheral portion is fitted and positioned in the arcuate pair of first side attachments 61A (see FIG. 8) and the positioning groove 41c provided in the central portion of the outer peripheral surface of the reference reel body 41. It comprises an arc-shaped first main attachment 61B (see FIG. 7). The first side attachment 61A is an arc-shaped member having a rectangular cross section, and the first main attachment 61B is a cross section in which a peripheral wall portion 61b is integrally formed on the outer peripheral side of the arc-shaped portion 61a having a rectangular cross section. It consists of a T-shaped arc-shaped member. In order to make it easy to attach each attachment to the reference reel, in the present embodiment, the first side attachment 61A is divided into two arcuate attachment components 61A1, 61A1, and the second side attachment 61B is It is divided into two arcuate attachment components 61B1, 61B1. In the present embodiment, each attachment is divided into two, but the attachment constituent members constituting each attachment may be formed so as to have a polar arc angle of 180 degrees or less, and the attachment constituent members constituting each attachment The number is arbitrary.

  Each of the pair of first side attachments 61A and 61A is fitted into the positioning grooves 44d and 44d near the both ends in the axial direction of the outer peripheral surface 44a of the reference reel body 41 with the reference portions thereof. A screw 63 that is positioned in the radial direction of the reel 12 and is inserted into a bottomed attachment hole 61h provided in each side attachment 61A and penetrates the bottom of each attachment hole is a peripheral wall of the reference reel body 41. Each attachment 61 </ b> A is fixed to the reference reel body 41 by being screwed into a screw hole 44 h (see FIG. 4B) provided in the portion 44. Similarly, the first main attachment 61B is positioned in the radial direction of the reference winding frame 12 by fitting a portion closer to the inner periphery thereof to the positioning groove 44c in the center of the outer peripheral surface 44a of the reference winding frame body 41. A screw 63 inserted in the bottomed mounting hole 61h provided in the first main attachment 61B and passing through the bottom of each mounting hole is provided in the peripheral wall portion 44 of the reference reel body 41. The main attachment 61B is fixed to the reference reel body 41 by being screwed into the hole 44h.

  In addition, the second attachment 62 is positioned by fitting the inner peripheral portion of each of the two positioning grooves 42d and 42d provided in the portions near the both ends in the axial direction of the outer peripheral surface of the reel movable portion 42. A pair of arc-shaped second side attachments 62A, 62A (see FIG. 10) and an arc-shaped shape in which the inner peripheral portion is fitted and positioned in the central groove 42a of the outer peripheral surface of the reel movable portion 42. It consists of a second main attachment 62B (see FIG. 9). The second side attachment 62A is an arc-shaped member having a rectangular cross section, and the second main attachment 62B is a cross section in which a peripheral wall 62b is integrally formed on the outer peripheral side of the arc-shaped portion 62a having a rectangular cross section. It consists of a T-shaped arc-shaped member.

  The pair of second side attachments 62A and 62A is fitted with positioning grooves 48d and 48d near the both ends in the axial direction of the outer peripheral surface 48a of the winding frame movable portion 42, as a reference. A screw 63 positioned in the radial direction of the reel 12 and inserted into a bottomed mounting hole 62h provided in each side attachment 62A and passing through the bottom of each mounting hole is a peripheral wall of the reel movable portion 42. Each side attachment 62 </ b> A is fixed to the reel moving part 42 by being screwed into a screw hole 48 h (see FIG. 4B) provided in the part 48. Similarly, the second main attachment 62B is positioned in the radial direction of the reference reel 12 by fitting a portion closer to the inner periphery thereof to the positioning groove 48c in the center of the outer periphery of the reel movable portion 42. The screw 63 inserted in the bottomed mounting hole 62h provided in the second main attachment 62B and penetrating the bottom of each mounting hole is provided in the peripheral wall portion 48 of the reel moving portion 42. The second main attachment 62B is fixed to the reel moving part 42 by being screwed into 48h.

  As shown in FIG. 11, the above-described winding frame 11 is attached to the winding core manufacturing apparatus in a state in which the winding frame attachments 12 and 13 having predetermined outer diameter dimensions are attached according to the inner diameter of the wound winding core. It is attached to the main shaft 10. Then, by operating the operating shaft 55 to position the reel movable portion 42 at the iron core support position, the outer peripheral surface of the reference reel main body 41 is arranged on the outer peripheral surface of the reel movable portion 42 of the reference reel. It is located on the same cylindrical surface as the cylindrical surface. As a result, the outer peripheral surface of the second attachment 62 is placed on the same cylindrical surface as the outer peripheral surface of the first attachment 61. In this state, the winding frame 11 is rotated by the winding belt 20, the steel strip SS is wound between the winding belt 20 and the winding frame 11, and the wound iron core 31 is wound.

  After winding the wound core, the winding frame 11 is stopped, and the winding end of the wound core 31 is spot-welded to prevent the wound core from being loosened. Thereafter, the restraint of the winding frame 11 by the winding belt 20 is released, the winding frame 11 is removed from the main shaft 10, the hook of the hoist chain is hooked in the hole 43 c of the hub 43, and the winding frame 11 is lifted together with the winding core 31. Next, the winding frame 11 and the winding core 31 are placed on the reversing machine, and as shown in FIGS. 12A to 12C, the winding frame 11 and the winding core 11 are directed so that the operation handle portion 55d of the operation shaft 55 faces upward. The iron core 31 is reversed. Thereafter, the operation handle 55d of the operation shaft 55 is held, the screw of the operation shaft 55 is loosened, the taper portion 55b of the operation shaft 55 is pulled out from the taper hole 47a, and the reel moving portion 42 of the reference reel 12 is set as the reference winding. A state in which the frame can be displaced in the radial direction is set. Next, as shown in FIGS. 12A to 12C, the outer peripheral surface of the attachment 62 attached to the reel movable portion 42 is moved by displacing the reel movable portion 42 to the inner diameter side of the reference reel 12. A gap G is formed between the wound core 31 and the inner peripheral surface of the wound core 31 to loosen the connection between the wound core 31 and the winding frame 11. In this state, the reel 11 is lifted by the hoist chain, and the reel 11 is removed from the reel core 31. The circular wound iron core 31 thus removed from the winding frame is shown in FIG.

  In the winding frame according to the present invention, the winding core 31 and the winding frame 11 are coupled to such an extent that the winding frame 11 can be detached from the winding core 31 when the winding frame movable portion 42 is displaced to the retracted position. The polar arc angle (polar arc angle of the winding frame movable portion) θ (see FIG. 5) of the groove portion 41a is set so that it can be loosened. In the present embodiment, the polar arc angle θ of the opening on the outer peripheral side of the groove 41a is set to about 48 °.

  When the core for a three-phase transformer is configured using the wound core 31, for example, it is inserted inside the rectangular outer wound core C1 shown in FIG. 16A and the window portion of the outer wound core C1. Two inner wound cores C2 and C3 (FIG. 16B) having a size are manufactured, and the inner wound cores C2 and C3 are inserted into the inner side of the outer wound core C1 as shown in FIG. A three-phase transformer core having two legs is formed.

  When the circular wound iron core 31 shown in FIG. 15A is formed into a rectangular wound iron core, for example, as shown in FIG. 15B, the circular wound iron core 31 is formed into a rectangular shape. When forming a circular wound iron core into a rectangular shape, for example, as shown in FIG. 15B, the wound iron core 31 is pressed from four sides by a pressing tool 71, and a molded metal fitting is formed inside the window portion of the wound iron core 31. In a state in which 72 is inserted and the inner dimension of the iron core is secured, the steel core is bound from the outside by the steel band 73 to form the wound iron core into a rectangular shape. Thus, after shape | molding a wound iron core in a rectangular shape, a wound iron core is put into an annealing furnace with a shaping | molding metal fitting and a steel strip band, and is annealed. When winding a wound core constituting the iron core for a three-phase transformer, among the wound cores of various diameters to be wound, the wound iron core constituting the inner wound cores C2, C3 of the smallest three-phase transformer core Is the minimum winding core.

  In the above embodiment, the reel attachment 61 attached to the reference reel body 41 is constituted by three members, the first main attachment 61B and the pair of first side attachments 61A. The reel attachment 62 attached to the reel movable part 42 is composed of three members, a second main attachment 62B and a pair of second side attachments 62A, as shown in FIGS. 13 (A) and 13 (B). As described above, the first attachment 61 attached to the reference reel body 41 is formed by one member having a T-shaped cross section integrally including an arc-shaped portion 61a and a peripheral wall portion 61b provided on the outer peripheral side of the arc-shaped portion. It can also be configured. In this case, one positioning groove 44c is formed in the center in the width direction of the outer peripheral surface 44a of the peripheral wall portion 44 of the reference reel body 41, and the arcuate portion 61a of the first attachment 61 is formed in the positioning groove 44c. The first attachment 61 is positioned by fitting a portion closer to the inner periphery, and the attachment 61 is fixed to the peripheral wall portion 44 of the reference reel main body with a screw.

  Similarly, the second attachment 62 to be attached to the winding frame movable portion 42 of the reference winding frame is a single member having a T-shaped cross section having an arc-shaped portion 62a and a peripheral wall portion 62b provided on the outer peripheral side of the arc-shaped portion. Can also be configured. In this case, one positioning groove 48c is formed in the center in the width direction of the outer peripheral surface 48a of the peripheral wall portion 48 of the winding frame movable portion 42 of the reference winding frame, and the arc-shaped portion of the second attachment 62 is formed in the positioning groove 48c. The second attachment 62 is positioned by fitting a portion closer to the inner periphery of 62a, and the attachment 62 is fixed to the peripheral wall portion 48 of the reel movable portion 42 with a screw.

  Since the arc length of the reel movable portion 42 of the reference reel 12 is short, the contact area between the attachment 62 attached to the outer periphery of the peripheral wall 48 of the reel movable portion 42 and the wound iron core is the attachment attached to the outer periphery of the reference reel main body. You may make it narrower than the contact area of 61 and a wound iron core. Therefore, in the embodiment shown in FIGS. 2 to 12, the attachment attached to the outer periphery of the reel movable portion 42 is only the second main attachment 62B, and the side attachments 62A and 62A can be omitted.

  As described above, the winding core 11 for winding the winding core is constituted by the reference winding frame 12 having a size suitable for the minimum winding core and the attachment 13 attached to the reference winding frame according to the size of the winding core to be wound. When configured and used as a common part for various winding cores to be wound with the reference winding frame 12, the component parts of the winding frame 11 are made common to reduce the manufacturing cost of the winding frame. be able to.

  As described above, when the winding core winding reel 11 is constituted by the reference winding frame 12 and the attachment 13 attached to the reference winding frame 12 according to the size of the winding core 31 to be wound, one reference By storing a wound iron core and an attachment suitable for a wound iron core of various sizes, it is possible to wind wound iron cores of various sizes. Therefore, it is possible to prepare and store a reel suitable for various types of wound cores in a storage space narrower than before, and to shorten the delivery time of the wound cores.

  In the above embodiment, when it is necessary to wind a wound core having a new dimension that cannot be handled by the stored attachment 13, only the attachment 13 needs to be newly manufactured. Can be done in a short time to shorten the delivery time of the wound core.

  In addition, as described above, the reference reel 12 is arranged on the same cylindrical surface as the reference reel main body 41 having the groove on the outer peripheral portion and the outer periphery of the reference reel main body 41 disposed in the groove. The reel is movable so that it can be displaced between the position where the iron core is supported and the outer peripheral surface retracted radially inward from the outer peripheral surface of the reference reel body. And a removable movable part fixing mechanism that fixes the reel movable part to the iron core support position, and the reel attachment 13 is fixed to the outer periphery of the reference reel main body. The outer peripheral surface is retracted radially inward from the outer peripheral surface of the first attachment 61 when the reel movable portion 42 is fixed to the outer periphery of the attachment movable portion 42 and the reel movable portion 42 is disposed at the retracted position. 2nd attachment 6 arranged at a position When configured with the can without using a complicated decreasing mechanism, by reducing the portion of the diameter of the reel to perform the task of removing the wound core from the winding frame. Therefore, according to said structure, the structure of a reel can be simplified and the reduction of the cost can be aimed at.

  Moreover, if comprised as mentioned above, since a reel attachment is positioned and attached to the outer periphery of the reference reel that is not divided in the radial direction (the outer diameter is constant), the reel attachment is accurately attached. Positioning can be performed, the accuracy of the outer diameter of the winding frame can be prevented from being lowered, and the circular wound core can be wound with high accuracy.

  In the above-described embodiment, the reference reel is constituted by the reference reel main body 41 having the groove 41a on the outer periphery of the reference reel 12 and the reel movable portion 42 disposed in the groove 41a of the reference reel main body 41. Thus, the first attachment 61 and the second attachment 62 are attached to the outer periphery of the reference reel body 41 and the outer periphery of the reel movable portion 42, respectively, but the second attachment 62 is omitted and the reference winding is omitted. The frame main body 41 is used as a reference winding frame, and as a winding frame movable portion 42 to be attached in the groove portion 41a on the outer periphery of the reference winding frame, those having a size suitable for the inner diameters of various wound cores to be wound are prepared. The outer peripheral surface of the winding frame movable part 42 may be brought into direct contact with the inner periphery of the wound core as a part of the iron core support surface.

  FIG. 14 shows an embodiment in which the outer peripheral surface of the winding frame movable part is brought into direct contact with the inner periphery of the wound iron core as described above. In this example, the embodiment shown in FIGS. 2 to 12 is shown. The member corresponding to the reference reel main body 41 used in the embodiment is used as the reference reel 12, and the outer peripheral surface of the reel movable portion 42 attached in the groove 41a provided on the outer periphery of the reference reel is the inner periphery of the wound iron core 31. The dimension of the winding frame movable part 42 is set so that it can be brought into direct contact with the frame. In the case of such a configuration, as the reel moving part 42, those having sizes suitable for various inner diameters of the wound iron core to be wound are prepared and prepared in advance. In this embodiment, the structure of the reel moving part 42 is the same as that used in the embodiment shown in FIGS.

  Further, in the embodiment shown in FIG. 14, the play (gap) of the fitting portion between the groove portion 41a of the reference reel and the substrate portion 47 of the reel movable portion 42 is reduced, and the reel movable portion 42 becomes the reel of the reel. This prevents tilting with respect to the radial direction. In the case of such a configuration, only one support plate 51, 52 and operation shaft 55 can be provided at the center in the width direction of the groove 41a.

  Also in the embodiment shown in FIGS. 2 to 13, as in the embodiment shown in FIG. 14, the backlash of the fitting portion between the substrate portion 47 of the winding frame movable portion 42 and the groove portion 41 a of the reference winding frame is eliminated. A single operation shaft 55 can be provided at the center in the width direction of the groove 41a.

  As shown in FIG. 14, at least one groove portion having an outer diameter dimension suitable for a minimum wound core having a minimum inner diameter among various sizes of wound cores to be wound and opened at least on the outer peripheral side. Is manufactured in contact with the outer periphery of the reference winding frame 12 and positioned in the radial direction of the reference winding frame when manufacturing the reference winding frame 12 provided near the outer periphery and the winding core having an inner diameter larger than the minimum winding core. A winding frame attachment 61 that is detachably attached to the reference winding frame in a state where the outer peripheral surface is wound, and a portion that can be displaced in the radial direction of the reference winding frame in the groove 41a of the reference winding frame 12 It is provided so that it can be displaced between the iron core support position in contact with the inner peripheral surface of the iron core and the retreat position in which the outer peripheral surface is retracted to the inner diameter side from the position in contact with the inner peripheral surface of the wound core. The reel movable part 42 and the reel movable part 42 are supported by the iron core. If it and the releasable movable element fixing mechanism for fixing a configuration with even, it is possible to obtain the same effect as above.

  In each of the above embodiments, only one groove portion is provided in the portion near the outer periphery of the reference winding frame, and the winding frame movable portion is attached in the groove portion, but a plurality of groove portions are provided in the portion near the outer periphery of the reference winding frame. One piece may be provided, and a winding frame movable part may be attached in each groove part.

  In the above example, the groove portion 41a provided near the outer periphery of the reference winding frame is provided in an open state on the outer periphery side (outside in the radial direction) of the reference winding frame and on both sides in the axial direction of the reference winding frame. The groove 41a only needs to be provided so as to open to at least the outer peripheral side of the reference winding frame, and the method of providing the groove 41a is not limited to that shown in the above embodiment. The support structure of the winding frame movable part 42 can be appropriately changed according to the way of providing the groove part 41a.

  In the above embodiment, the substrate portion 47 of the winding frame movable unit 42 is inserted and supported between the support plates 51 and 52 fixed to the reference winding frame side, but the winding frame movable unit 42 has at least one of them. It is only necessary that the portion is disposed in the groove portion 41a so as to be movable (movable in the radial direction of the reference reel) and supported so as to be displaceable with respect to the reference reel. The support structure is shown in the above embodiment. It is not limited to that. For example, portions corresponding to the support plates 51 and 52 (portions facing the axial direction of the reference winding frame) are provided on the winding frame movable portion 42 side, and a part of the hub 43 (the bottom portion of the groove portion 41a) between these portions. The winding frame movable portion 42 may be supported so as to be displaceable in the radial direction with respect to the reference winding frame 12 by making the state in which the vicinity portion) is slidably inserted.

It is the front view which showed roughly an example of the structure of the wound iron core manufacturing apparatus using the winding frame concerning this invention. (A) is the front view which showed the winding frame concerning the 1st Embodiment of this invention, (B) is sectional drawing along the IIB-IIB line | wire of (A). It is a top view of the winding frame of this embodiment. (A) And (B) is the front view and top view of a reference | standard reel which comprise the reel of this embodiment, respectively. (A) is a front view of the reference | standard reel frame main body used by this embodiment, (B) is (A) VB-VB sectional view taken on the line. (A) and (B) are a front view and a side view of the reel movable portion of the reference reel used in this embodiment, respectively. (A) is the front view which showed the 1st main attachment used by this embodiment, (B) is the VIIB-VIIB sectional view taken on the line of (A). (A) is the front view which showed the 1st side part attachment used by this embodiment, (B) is the VIIIB-VIIIB sectional view taken on the line of (A). (A) is the front view which showed the 2nd main attachment used by this embodiment, (B) is the IXB-IXB line expanded sectional view of (A). (A) is the front view which showed the 2nd side part attachment used by this embodiment, (B) is the XB-XB line expanded sectional view of the figure (A). (A) is the front view which showed the state which wound the wound iron core to the winding frame of this embodiment, (B) is sectional drawing along the XIB-XIB line | wire of (A). (A) is the front view which showed the state of the winding frame at the time of removing a winding core from a winding frame in this embodiment with the winding core, (B) is sectional drawing along the XIIB-XIIB line of (A), (C ) Is an enlarged view of the main part of (B). (A) is the front view which showed the winding frame of the 2nd Embodiment of this invention, and the wound iron core wound by this winding frame, (B) is sectional drawing along the XIIIB-XIIIB line | wire of (A). It is. (A) is the front view which showed the winding frame of the 3rd Embodiment of this invention, and the wound iron core wound by this winding frame, (B) is sectional drawing along the XIVB-XIVB line | wire of (A). It is. (A) thru | or (C) is the front view which showed the process in which the circular winding iron core wound using the winding frame concerning this invention was shape | molded in a rectangular shape. (A) is a front view showing a rectangular outer wound core constituting a wound core for a three-phase transformer, and (B) is a front view showing two rectangular inner wound cores constituting a wound core for a three-phase transformer. FIG. 4C is a front view of a wound core for a three-phase transformer. (A) And (B) is the front view and longitudinal cross-sectional view which respectively showed the state which wound the wound iron core to the conventional winding frame. (A) And (B) is the front view and longitudinal cross-sectional view which respectively showed the state which reduced the diameter of the wound iron core shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main axis of winding core manufacturing apparatus 11 Winding frame 20 Winding belt 30 Winding device 12 Reference winding frame 13 Winding frame attachment 41 Reference winding frame main body 41a Groove part 42 Winding frame movable part 43 Hub of reference winding frame main body 44 Reference winding frame main body Peripheral wall portion 44a outer peripheral surface 44c positioning groove 44d positioning groove 45 spindle winding frame mounting portion 47 substrate portion 48 outer peripheral side wall portion 48c positioning groove 48d positioning groove 51 support plate 52 support plate 55 operation shaft 55a shaft portion 55b taper portion 55c Screw part 55d Operation handle part 61 First attachment 61A First side attachment 61A1 Attachment constituent member 61B First main attachment 61B1 Attachment constituent member 62 Second attachment 62A Second side attachment 62A1 Attachment constituent member 62B 2 of the main attachment 62B1 attachment components

Claims (7)

A winding frame used when winding a circular wound iron core,
When manufacturing a reference winding frame having an outer diameter suitable for a minimum winding core having a minimum inner diameter among winding cores of various sizes to be wound, and a winding core having an inner diameter larger than the minimum winding core A reel attachment detachably attached to the outer periphery of the reference reel,
The reference reel includes a reference reel body having at least one groove portion opened on an outer peripheral side and both sides in the axial direction in a portion near the outer periphery, an iron core support position and the iron core support in the groove portion of the reference reel body. A reel movable portion provided so as to be displaceable between a retracted position set radially inward of the position, and a releasable movable portion fixed to fix the reel movable portion to the iron core support position. A mechanism, and the outer peripheral surface of the reference reel main body and the outer peripheral surface of the reel movable portion are wound on the same cylindrical surface when the reel movable portion is at the iron core support position. Configured to support the smallest wound core from the inside,
The reel attachment is fixed to the outer periphery of the reference reel main body, and the reel attachment is fixed to the outer periphery of the reel movable portion and the reel movable portion is at the iron core support position. A first iron attachment and a second attachment arranged in alignment, the inner core of which the outer peripheral surface of both attachments is wound when the first attachment and the second attachment are arranged in alignment Configured to support from,
A winding core winding reel characterized by the following. The reference reel body includes a disc-shaped hub whose central portion is attached to the main shaft of the wound iron core manufacturing apparatus, and a cylindrical peripheral wall portion provided on the outer peripheral portion of the hub. The groove is formed in a state in which a part and a part of the portion near the outer periphery of the hub are cut out,
The reel movable portion has a base plate portion disposed in the groove with a plate surface parallel to the hub plate surface, and an outer peripheral surface when the reel movable portion is in the iron core support position. An arc shape that is arranged on the same cylindrical surface as the cylindrical surface on which the outer peripheral surface of the peripheral wall portion of the reference reel body is arranged and forms a cylindrical iron support surface together with the outer peripheral surface of the peripheral wall portion of the reference reel main body And an outer peripheral side wall portion,
At least one pair of support plates facing each other in the axial direction of the reference reel is provided with the hub in between, and these support plates are fixed to the hub,
The substrate portion of the winding frame movable portion is inserted between the pair of support plates and supported so as to be movable in the radial direction of the reference winding frame,
A round hole having a uniform inner diameter along the axial direction passing through one of the pair of support plates is provided, and a screw hole aligned with the round hole is provided on the other of the pair of support plates,
A taper hole that can be aligned with the round hole and the screw hole is provided in the substrate portion of the winding frame movable portion with an end on the large diameter side facing the support plate side on which the round hole is formed,
A shaft portion that is rotatably fitted in the round hole, a taper portion that is integrally formed with the shaft portion and fitted in the taper hole, and a screw portion that is screwed into the screw hole are provided on the distal end side. An operation shaft having an operation handle portion on the rear end side is provided,
The movable portion fixing mechanism is constituted by the operation shaft and the pair of support plates, and the operation portion is rotated in one direction by holding the operation handle portion to screw the screw portion into the screw hole. When the taper portion is fitted into the taper hole, the movable part of the reel is fixed at the iron core support position, and the operation shaft is rotated in the other direction to rotate the taper portion. Being configured to be in a state in which the movable part of the reel can be displaced to the retracted position when pulled out from the tapered hole;
The wound core winding frame according to claim 1.   3. The wound core winding winding frame according to claim 2, wherein two pairs of the support plates are provided at an interval in the width direction of the groove portion of the reference winding body.   3. The wound core winding reel according to claim 2, wherein only one pair of the pair of support plates is provided at a central portion in the width direction of the groove portion of the reference reel body. Three positioning grooves extending in parallel with the circumferential direction of the reference reel body are provided at the central portion in the axial direction of the outer circumference of the reference reel body and the portions near both ends, respectively, and provided with the positioning reel. Three positioning grooves that are respectively aligned with the three positioning grooves of the reference reel body are provided on the outer peripheral surface of the frame movable portion,
The first attachment is a first pair of arcuate pairs in which inner peripheral portions are fitted and positioned respectively in two positioning grooves provided on both ends of the outer peripheral surface of the reference reel body. And a first arc-shaped main attachment that is positioned by fitting an inner peripheral portion into a positioning groove provided in a central portion of the outer peripheral surface of the reference reel body,
The second attachment is a pair of arcuate pairs in which the inner peripheral portion is fitted and positioned in two positioning grooves provided at portions near the both ends in the axial direction of the outer peripheral surface of the reel moving portion. 2, 2 side attachments, and an arcuate second main attachment that is positioned by fitting an inner peripheral portion into a central groove on the outer peripheral surface of the reel movable portion. A winding core winding frame according to 3 or 4. A positioning groove extending in the circumferential direction of the reference reel main body is provided at the center of the outer circumference of the reference reel main body in the axial direction, and the reference reel main body is provided on the outer peripheral surface of the reel movable portion. A positioning groove is provided to align with the positioning groove of
The first attachment comprises an arc-shaped first attachment that is positioned by fitting an inner peripheral portion into a positioning groove on the outer peripheral surface of the reference reel body.
The said 2nd attachment consists of a circular-arc-like 2nd attachment by which an inner peripheral part is fitted and positioned by the positioning groove of the outer peripheral surface of the said reel moving part. Or the winding core winding frame of 5. A winding frame used when winding a circular wound iron core,
Of the various sizes of wound cores to be wound, the outer diameter is suitable for the smallest wound core having the smallest inner diameter, and at least groove portions that are open on the outer circumferential side and both sides in the axial direction are provided at the outer circumferential portion. A reference reel having one;
A reel attachment that is removably attached to the outer periphery of the reference reel when producing a wound core having an inner diameter larger than the minimum wound core;
An iron core support position having a portion that can be displaced in the radial direction of the reference reel within the groove portion of the reference reel, and the outer peripheral surface being in contact with the inner periphery of the wound iron core to be wound, and the outer periphery A reel movable portion provided so as to be displaceable between a retracted position where the inner core is retracted to an inner diameter side of a position in contact with the inner peripheral surface of the wound core;
A releasable movable part fixing mechanism for fixing the reel movable part to the iron core support position;
A winding core winding frame characterized by comprising:

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