JP4875952B2 - Coil winding method - Google Patents

Description

  The present invention relates to a continuous winding method and a winding apparatus for manufacturing a primary coil and a secondary coil of a transformer, and more particularly, a winding method and a winding apparatus for a transformer in which a primary coil and a secondary coil are integrally formed. About.

  Conventionally, a winding device disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 9-219334) describes a wire supply means, a winding jig rotating means, a winding jig holding means, and a winding jig replacing means. In this winding apparatus, the wire rod supply means includes two wire rod bobbins, one wire rod bobbin supplies the wire rod W1 to the nozzle side with a predetermined tension via a roller, and the other wire rod bobbin is the wire rod W1. It is described that it can be supplied with a different type of tension.

Conventionally, as shown in FIGS.
When winding is performed in the transformer coil 40 that integrally forms the primary coil 41 and the secondary coil 42, the winding of the secondary coil 42 is first started by the dedicated winding device 43. As a setup, a special winding frame (winding mold) 45 is attached to a winding shaft clamp portion 44 having power for winding. An aluminum strip or a copper strip is wound around the winding frame 45 at the same time as the interlayer paper, and the secondary coil 42 winding is completed. Thereafter, it is once removed from the winding shaft clamp portion 44 and separated from the winding frame 45. In the case of a three-phase transformer, three units are required per unit, but a plurality of dedicated reels 45 are required, and due to the generation of management space and man-hours, the next coil must be removed to manufacture. The manufacturing operation of the secondary coil is repeated three times, and the secondary coil is transported to the primary coil dedicated winding device 48 which is the next process. The winding operation of the primary coil 41 is performed by assembling the secondary coil 42 that has already been manufactured to the winding shaft clamp portion 49 and winding the primary coil 41. In the case of a three-phase transformer, this production work is completed three times.

Japanese Patent Laid-Open No. 9-219334

Conventionally, when performing winding in transformer coils 40 to form a primary coil 41 and secondary coil 42 integrally, the secondary coil 4 2 considered to meander and scratches do not occur because it is composed mainly of aluminum strip or copper strip Must. Further, the primary coil 4 1 must be able to winding at a constant pitch in a high speed while considering so that scratches do not occur because it is mainly a flat wire of round wire and about 3 mm × 8 mm in order .phi.4 mm. For this reason, it has been necessary to use dedicated winding devices 43 and 48 in accordance with the component configuration of each coil. In the manufacturing process, the winding of the secondary coil 42 is removed from the winding clamp 44, the number of steps to be separated from the winding frame 45, the number of steps to be transported to the primary coil winding device 48, which is the next step, and The number of steps for assembling the secondary coil 42 that has already been manufactured to the winding shaft clamp portion 49 of the primary coil-dedicated winding device 48 is required again, which is a factor that deteriorates efficiency. Further, in the conventional secondary coil winding device 43, the winding in the supply direction of the strip hoop material 4 causes a gap in the coil even if pressure is applied, which affects the outer dimensions after the winding is completed. It was difficult to achieve compactness.

  Therefore, the present invention has been made to solve the above problems, and after starting the winding of the secondary coil located on the coil side, the winding is removed from the winding device and transported to the next process. Therefore, the object is to eliminate the work of separating the winding and the winding frame, and to greatly shorten the lead time.

Each device is integrated by considering an aluminum strip or copper strip hoop material corresponding to each component configuration of the primary coil and the secondary coil, and a supply route of a round wire and a rectangular wire.
Combined with the primary and secondary coils being molded from the outside by their dedicated pressurizing units, the aluminum strip or copper strip is wound in the opposite direction to the winding shape of the hoop material when winding the secondary coil. By winding with the apparatus, it is characterized in that no gap is generated at the time of winding, which is impossible with only the pressure unit.

  In order to ensure the stability of automatic pitch feeding of the electric wire during the manufacturing process of the primary coil, a unit that aligns and guides the electric wire at a position close to the coil is installed and integrated with the primary coil pressure unit. It is characterized by.

  According to the present invention, after starting the winding of the secondary coil located inside the coil, it is possible to eliminate the work of removing from the device and separating from the winding frame for transporting to the next process, and greatly reducing the lead time. Can be planned. In addition, since the outer dimensions are small and compact and more ideal pressure can be applied, it is possible to provide a primary secondary coil that can reduce the material cost.

  Embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a winding device for continuously winding a primary coil and a secondary coil of a transformer according to the present invention.

In FIG. 1, 1 shows the whole winding apparatus, 2 is a base, 3 is a winding frame, 4 is an aluminum or copper hoop material, and 5 is an uncoiler. 6 is an interlayer paper, 8 and 9 are intermediate guide rollers, and 11 is a guide roller provided in the city. Reference numeral 12 denotes a support, on which a flat wire or a round wire relay roller 13 is installed.
Reference numeral 14 denotes a flat wire guide roller, 15 denotes a flat wire attitude adjusting unit, 16 denotes a flat wire width guide unit, and 17 denotes a tension unit. Reference numeral 23 denotes a tension roller provided on the pressure roller unit moving frame 25 fixed to the support column 10, and reference numerals 24, 26, 27, 28, and 29 denote round line guide rollers. Reference numeral 30 denotes a tip guide roller, and 31 denotes a pressure roller for a secondary coil.

  FIG. 2 illustrates a winding method in which an aluminum strip or a copper strip is wound around the winding frame 6.

  First, the hoop material of aluminum strip or copper strip 4 is attached to the uncoiler section 5, and the winding is taken out from the lower side in the clockwise direction, via the intermediate guide roller 8, via the guide roller 11 provided in the city 0 Then, it is wound on the reel 3. Further, the winding frame 3 takes in an aluminum strip or a copper strip from the upper side, and rotates and winds it counterclockwise.

  In addition, since this secondary coil has a structure in which an interlayer paper is sandwiched between aluminum strips or copper strips, as shown in FIG. 2, a bobbin wound with interlayer paper is installed under the aluminum strips or copper strips. Then, the sheet is wound around the winding frame 6 in a state of being overlapped with the aluminum strip or the copper strip through the intermediate guide 9 and the guide roller 11 provided on the support column 10.

  Here, the supply of the interlayer paper is shown in the counterclockwise direction, but may be clockwise because there is no winding.

  5 and 6, an embodiment of the invention will be described with respect to the supply rotation direction and the winding rotation direction of the winding frame 3 in the uncoiler portion 4 of aluminum strip or copper strip hoop material.

  5 and 6, 50 is the rotation direction of feeding the aluminum strip or copper strip hoop material, 51 is the winding rotation direction of the reel 3, 52 is the rotation direction of feeding the aluminum strip or copper strip hoop material, and 53 is the winding direction. The winding rotation direction of the frame 3 is shown.

  The strip winding method shown in FIG. 5 is a method in which an aluminum strip or a copper strip hoop material is fed counterclockwise from the upper side, and the winding frame 3 is wound counterclockwise from the upper side.

  As described above, according to the winding direction shown in FIG. 5, the strip material fed from the hoop material has a winding of the strip material. A gap occurs between the lines.

  On the other hand, the strip winding method shown in FIG. 6 is a method in which an aluminum strip or a copper strip hoop material is fed clockwise from the lower side, and the winding frame 3 is wound counterclockwise from the upper side. Since the winding is performed so as to cancel out the winding, no slack 54 is generated, and no gap is generated between the windings.

  That is, in FIGS. 5 and 6, the rotation direction of the hoop material is changed clockwise or counterclockwise, and the winding rotation direction of the reel 3 is fixed in the counterclockwise direction. The effect is the same even when the rotation direction is fixed and the winding rotation direction of the reel 3 is clockwise or counterclockwise, that is, when the feeding rotation direction of the strip material and the winding rotation direction are reversed, It has the effect that sagging of the material does not occur.

  Next, a winding method for winding a flat wire as the primary winding in FIG. 3 will be described.

The supply route is from the electric wire bobbin, through the relay roller 13, through the guide roller 14 and the posture adjusting unit 15, set to the width guide unit 16 and the tension unit 17, and then supplied to the winding frame 3 to start winding. .
The tension unit of the flat wire 18 will be described with reference to FIG. In FIG. 7, the felt 21 is pressed against the flat wire 18 centered by the width guide unit 16 on the side of the tension receiving fixing roller 19 by an air cylinder 22, and the air pressure is adjusted by a regulator. By adjusting the tension force. When the flat wire 18 is supplied in two horizontal rows, it can be dealt with by simply passing two with the width guide unit 16 open and closing the unit again.

  Next, the case where a round line is used will be described with reference to FIG.

  The supply route is from the electric wire pack through the relay roller 13 and the tension roller 23 provided on the moving frame 25 passes a predetermined number according to the wire diameter to give a predetermined tension. The guide rollers 24, 26, 27, 28, and 29 are fed to the winding frame 3 to start winding.

  Since both the round wire and the flat wire are wound simultaneously with the interlayer paper 6 as necessary, as in the case of the secondary coil, the left and right double heads are used so that they can be shared. In addition, the structure of the tip guide 30 can be wound with an appropriate guide width according to a combination of arbitrary wires by loosening the fixing nut and moving the width adjusting roller, thereby enabling equal pitch feeding. .

  The primary coil and secondary coil winding device is a dedicated device due to the difference in component configuration, and it requires time to change the setup and transport, and minimization in the ultimate design requires improvement. . In the present invention, the supply route of each electric wire is properly secured, and the issue of the gaps caused by the stable pitch feed and the winding of the hoop material, which is a matter of concern, is reduced, and the coil outer dimensions are reduced and the material cost is reduced. This is a method that realizes reduction, and can meet the demand.

It is the primary secondary coil continuous winding apparatus schematic in the Example of this invention. It is a secondary coil strip supply route schematic diagram in the example of the present invention. It is the primary coil flat wire supply route schematic in the Example of this invention. It is a primary coil round wire supply route schematic diagram in the example of the present invention. It is a figure explaining gap generation by winding of a hoop material in the present invention. It is a figure explaining the state where a clearance gap does not generate | occur | produce by utilizing winding of the hoop material in this invention. It is rectangular wire tension part explanatory drawing in the Example of this invention. It is tension part explanatory drawing at the time of supply of two flat wires in the Example of this invention. An overview diagram (a) of the transformer coil and a configuration diagram (b) of the primary coil and the secondary coil are shown. It is a general-view figure of the conventional secondary coil winding apparatus. It is a conventional reel structure diagram. It is the schematic of the conventional primary coil winding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Winding apparatus 2 ... Base 3 ... Winding frame 4 ... Aluminum or copper strip hoop material 5 ... Uncoiler 6 ... Interlayer paper 8 ... Intermediate guide roller 9 ... Intermediate guide roller 10 ... Strut 11 ... Guide roller 12 ... Strut 13 ... Relay Roller 14 ··· Square wire guide roller ··· Position adjustment unit 16 ··· Width guide unit 17 ··· Tension unit 18 ··· Flat wire 23 · · · Tension unit 24 ··· Guide roller 25 · Pressure roller unit moving frame for secondary coil · · · 29 ‥ front guide roller 31 ‥ primary coil pressure roller 32 ‥ round wire 21 ‥ felt portion 40 ‥ transformer coils 41 ‥ primary coil 42 ‥ secondary coil 43 ‥ secondary coil winding device 48 ‥ primary coil winding apparatus 44 ··· Winding device winding shaft clamp portion for secondary coil 49 · · · Winding device winding shaft clamp portion for primary coil 45 · Winding frame (winding type)
46 ... reel structure A side considering extraction 47 ... reel structure B side considering extraction

Claims (1)

A round wire or a flat wire corresponding to the component configuration of the primary coil;
And a coil winding method for winding an aluminum strip or copper strip hoop material corresponding to the component configuration of the secondary coil around the winding frame ,
Wherein the secondary coil, the layer between the paper also wound upon the aluminum strip or copper strip windings from the hoop,
The hoop member, the 及 beauty supply source of the round wire or flat wire to said bobbin, and disposed on the same side,
The reel is fixed and arranged at a fixed location, rotated,
Aluminum strip or copper strip material from the hoop, before SL layer between paper and continuously wound on the winding frame a wire of round wire or flat wire from the source in the same device,
A coil winding, wherein an aluminum strip or a copper strip at the time of winding of the secondary coil has a hoop material feeding rotation direction and a winding rotation direction of the winding frame opposite to each other. mETHODS.

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