JP3229320U - Winding tool for coil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coil winding tool for easily and accurately winding and mounting a coil when a plurality of coils are installed in parallel axial directions. SOLUTION: A winding tool is sequentially connected to a plurality of winding shafts 4a and 4b forming a coil 9 by spirally winding a coil wire 8 not coated with a cohesive agent, and the winding shafts are connected on the same axis. A connecting portion 6 for holding the coil wire in a winding posture capable of continuously winding the coil wire is provided. The connecting portion is configured so that the adjacent winding shaft and the wound coil can be slid and moved to the cores 12a and 12b of the work 12 to be mounted, and the posture can be changed so as to bend or bend and deform, and around the axis of the winding shaft. The coil wire is projected to the outer peripheral side of the connecting portion, and the winding of the coil wire around the winding shaft is restricted between the adjacent coils, and the necessary continuous portion 8a of the coil wire is formed between the adjacent coils to allow the coil spacing. [Selection diagram] Fig. 3

Description

The present invention relates mainly to a coil winding tool for winding a coil used as an electric / electronic component.

Conventionally, Patent Document 1 and the like are known as a device for continuously winding a plurality of coils in a coil winding for the above-mentioned applications, and Patent Document 2 and the like as a technique for bending a spirally wound coil. It has been known.
Further, as shown in Patent Document 3, it is known that a plurality of coils are arranged in a plane so that their axes are parallel to each other.

Japanese Patent No. 6347569 Japanese Unexamined Patent Publication No. 2016-219583 JP-A-2017-76761

When trying to arrange multiple coils with relatively small winding diameters in the coaxial direction on a plane, it is difficult to mechanically automate the winding, such as when the arrangement of fixed cores is close. In this case, it is desirable to wind the coil wire around the winding shaft having the same shape as the core of the coil in advance to form a coil in an air-core state, and to fit the core of the workpiece as a product for exterior decoration.

Then, in the above case, the coil wire is coated with a self-bonding agent in which the coil shape in the wound state is self-fused and stably fixed by heating after winding or immersion in a solvent. If you can use, there is almost no problem. However, if the coil wire has a strong residual stress during winding or a non-fused wire that is not coated with a cohesive agent is used, it will be wound when it is removed from the winding shaft and put into an air-core state. The shape of the coil collapses and deforms, making it difficult to reinsert it into the core, and the deformation may remain even after reinsertion, so there is a problem that it cannot be used as a coil.

On the other hand, when the coil is installed in the gas atmosphere of gas appliances or various refining plants, the self-bonding wire is used when the self-bonding agent reacts with the gas and the fusion function cannot be maintained, or when harmful gas is generated. May not be possible.

By the way, polyvinyl butyral, poniamide and other fusion agents are used as the self-bonding wire, and there is an advantage that the use of impregnating agents such as bobbins, tapes and varnishes can be omitted by utilizing these. On the other hand, as the non-fused wire, a conventional enamel wire or the like with an insulating coating is used.

The winding tool of the present invention for solving the above problems first includes a plurality of winding shafts 4a and 4b for forming a coil 9 by spirally winding a coil wire 8 not coated with a cohesive agent. A connecting portion 6 for connecting the winding shafts 4a and 4b on the same axis O and holding the coil wire 8 in a winding posture capable of continuously winding the coil wire 8 is provided, and the connecting portion 6 is connected to the adjacent winding shaft 4a. , 4b and the wound coil 9 are slidably moved to the cores 12a and 12b of the work 12, and the posture can be changed so as to bend or bend the mounting posture.

Second, it protrudes toward the outer peripheral side of the connecting portion 6 around the axis of the winding shafts 4a and 4b, and restricts the winding of the coil wire 8 around the winding shafts 4a and 4b between the adjacent coils 9 and between the adjacent coils 9 and 9. It is characterized in that a continuous portion 8a of the coil wire 8 required for the coil wire 8 is formed to provide a regulating portion 6a that allows a coil spacing.

Thirdly, the connecting portion 6 is made of a plastic member that can be bent and deformed.

Fourth, the plurality of winding shafts 4a and 4b and the connecting portion 6 are formed of a single rod-shaped shaft member 4.

Fifth, the winding shafts 4a and 4b are characterized in that they have substantially the same diameter as the corresponding cores 12a and 12b on the work 12 side and are parallel to each other in the mounting posture at the same pitch.

Sixth, the connecting portion 6 is a hinge that connects adjacent winding shafts 4a and 4b to each other and also serves as a regulating portion 6a.

Seventh, it is characterized in that a holding portion 11 for fixedly holding the postures of the winding shafts 4a and 4b and the coil 9 changed to the mounting posture is provided.

Eighth, the winding shafts 4a and 4b are mounted on the work 12 together with the coil 9 and are also used as the cores 12a and 12b of the work 12.

The winding tool of the present invention configured as described above has the following effects.
(1) A coil consisting of a non-fused wire in which the coil is deformed by internal stress after winding by changing the posture of the winding shaft from the winding posture in which the coil wire is wound via the connecting portion to the mounting posture in which the coil wire is mounted on the work. Even if it is a wire, it can be attached to the work without breaking the wound state. Further, when the adjacent interval of a plurality of coils is required to be a certain value or more, the interval in which the winding shaft itself is not wound can be secured by the regulating portion.

(2) By holding the adjacent winding shaft together with the coil in the mounting posture, the coil can be stored and transported while maintaining the mounting posture, and it is easy to mount the coil on the workpiece in the mounting posture. And it is surely done.

(3) By forming the connecting portion with a plastic member that can be plastically deformed, the coil after the change to the mounting posture can be held in a posture that can be mounted on the work side, so that no mechanism or member for maintaining the posture is required. .. Further, by forming the winding shaft and the connecting portion with one shaft member, no parts for connecting are required, and no member for connecting the two is required, the manufacturing cost is low, and the winding work is also performed. Easy to do.

(4) By making the connecting portion a hinge that can be bent and rotated, the bending rotation is regularly performed with a constant trajectory, and the adjacent coils are bent accurately, for example, to the axes parallel to each other. It is possible to maintain an accurate mounting (bending) posture as a holding portion by providing a holding portion (material) for providing a rotation resistance to the hinge or maintaining a mounting posture. Further, there is an advantage that the hinge itself can be used as a spacer portion by having a predetermined thickness and projecting to the outer peripheral side.
In addition, by mounting the winding shaft on the work as a core on the work side while keeping the mounting posture, there is no need for mounting work to slide the winding shaft from the core to the core.

It is a front view which shows the winding state of the coil wire around the winding shaft by the winding tool of this invention. (A) is a sectional view taken along the line AA of FIG. 1, and FIG. 1B is a sectional view taken along the line BB of FIG. It is a front view which shows the coil which changed the posture by bending from the winding posture of FIG. 1 to the mounting posture, and the method of mounting a coil on a work. It is a top view of the coil attached to the work. (A) to (D) represent the used member and the winding and coil mounting work process of another embodiment of the present invention, (A) represents the shaft member, and (B) represents the winding state around the shaft member. , (C) represent the mounting posture of the coil with the shaft member bent on the work, and (D) represents the mounting state of the coil on the work.

1 to 4 show one embodiment of the coil winding tool of the present invention, and FIG. 1 shows a rotating shaft 1 in which the winding tool is arranged on both left and right sides on the rotation axis O of a winding device (not shown). The winding tool 3 is pressed and supported on the same axis from both sides between the two.

In the winding tool 3, a plurality of (a pair in this example) columnar winding shafts 4a and 4b having the same diameter as the cores 12a and 12b of the work 12 described later are connected and arranged on the same axis in a butt state. In the example, both winding shafts 4a and 4b removed from the rotating shafts 1 and 2 are rotated downward by 90 ° each other as shown in FIG. 3 via a connecting portion 6 formed of a hinge fixed between the butt end faces. , Both axes are connected so that they can be folded (bent) in a vertically parallel state.

The outer end faces of both winding shafts 4a and 4b and the butt end faces of the left and right rotating shafts 1 and 2 are recessed on the dowels 7a and the winding shafts 4a and 4b having an oval cross section protruding from the rotating shafts 1 and 2 side. It is connected so as to be engageable and disengaged by fitting with the dowel hole 7b and integrally rotatable (see FIG. 2 (A)). The winding shafts 4a and 4b are engaged and disengaged by moving the rotating shafts 1 and 2 in the axial direction.

As shown in FIGS. 1, 2 (B) and 3, the hinge 6 is composed of a pair of plates 6a and a pin 6b consisting of bolts that pivotally support both plates 6a at the lower protruding end so as to open and close and rotate. It protrudes from the outer circumference of the coil 9 described below. The other part of the outer circumference of the plate 6a is formed in an arc shape having the same diameter as the cross section of the winding shafts 4a and 4b, and each plate 6a is spot welded or screwed to the butt end faces of the left and right winding shafts 4a and 4b (not shown). ) Etc. are fixed.

The winding tool 3 configured as described above is set as shown in FIG. 1, and the coil wires 8 supplied to the winding shafts 4a and 4b rotated in the direction of arrow a by the rotating shafts 1 and 2 are spirally formed. The coil 9 is wound and formed by winding.

At this time, the left and right winding shafts 4a and 4b rotate together with the hinge 6 interposed between the two shafts and wind the coil wire 8 in sequence, but are regulated or guided by the upper protruding end of the plate 6a and the shaft support of the hinge 6. Since the coil wire 8 is wound so as to straddle the circular outer peripheral portion of the plate 6a, the winding pitch of the coil wire 8 is increased by the thickness of the plate 6a, and the coil wire 8 in this portion has each winding shaft as shown in FIGS. It becomes a continuous portion 8a of the coil wire 8 between the two coils 9 and 9 formed by 4a and 4b. Therefore, the shaft support portion protruding downward of the hinge 6 is also a winding restricting portion that functions in the same manner as the upper protruding end.

The coil 9 formed as shown in FIG. 1 is removed from the rotating shafts 1 and 2 and then cut at a predetermined dimensional position at the end of the coil wire 8 and then moved to the work side as shown in FIGS. 3 and 4. Edge processing is performed according to the mounting shape. In this end treatment processing, in addition to the bending processing as shown in FIGS. 3 and 4, terminal processing or the like in which the insulating coatings of both terminal portions are peeled off in advance is performed.

As shown in FIG. 3, the winding tool 3 and the coil 9 that have completed the winding of FIG. 1 rotate the plate 6a of the hinge 6 downward by 90 °, respectively, and take a posture of mounting on the work described below. change. The end treatment of the coil wire 8 may be performed before or after this posture change.

The winding tool 3 whose posture has been changed as described above forms a posture-holding holding portion on the shaft support so as to hold the mounting posture shown in FIG. 3 by making the rotation resistance of the shaft support of the hinge 6 above a certain level. However, as shown in FIG. 3, a plate having a pair of dowels 11a and 11a fitted with dowel holes 7b and 7b formed at both ends of both winding shafts 4a and 4b in a posture changed state. It is also possible to form a holding portion in which the holding member 11 of the above is detachably fitted and temporarily fixed.

By holding the posture in this way, the coil 9 after winding can be stored and conveyed together with the winding tool 3, so that the coil 9 keeps its winding posture stable until it is mounted on the work in the next process. be able to.

Next, a step of mounting the coil 9 that has maintained the mounting posture through the above steps on the work 12 side will be described. In this example, the work 12 has a pair of cores 12a, 12b having substantially the same diameter as the winding shafts 4a, 4b. Are supported in parallel and at the same height.

The winding tool 3 that forms a pair of coils 9 and 9 and holds the mounting posture has the lower ends of the left and right winding shafts 4a and 4b arranged at the same pitch interval on the same axis of the upper ends of the cores 12a and 12b. By superimposing and sliding the coils 9 and 9 downward and sliding them onto the cores 12a and 12b, the mounting of the coils 9 and 9 on the cores 12a and 12b is completed.

In the above embodiment, the winding shaft has a circular cross section with a diameter of about 6 to 7 mm, but the shaft diameter and the cross-sectional shape are changed according to the cross-sectional shape and dimensions of the core on the work side, and the cross-sectional shape is square. In addition to other polygonal and semi-circular cases, the winding shaft itself is a winding jig, so regardless of whether the material is metal or non-metal, the material of the hinge part that is the connecting part and mechanically integrally formed with the winding shaft. It doesn't matter whether it is a separate one or a separate one.

In addition, by using a magnetic material for the winding shaft and configuring it so that it can be mounted and fixed on the work side, it can also be used as the core of the work. In this case, the hinge that is the connecting part can be removed and the hinge mounting side is the work. It suffices if it is configured so that it can be attached to the side by inserting or screwing. In addition, the number of coils is not limited to two, and it can be applied to three or more coils depending on the number of cores on the work side.

In the above embodiment, the spacer portion is also used by projecting the hinge plate to the outer peripheral side, but an elastic U-shaped or C-shaped ring or a snap ring such as an E-ring can be engaged and detached on the outer periphery of the connecting portion. A spacer separate from the connecting portion (hinge) may be attached, such as by attaching.

FIG. 5 shows another embodiment of the present invention. In this example, as shown in FIG. 5A, two flanges are formed in the middle portion of one round bar-shaped shaft member 4 having a bendable circular cross section. A shaped plate (winding regulation part) 6a is fitted, positioned and fixed to form a connecting part having a predetermined length (about 1/3 of the total length in this example), and each end has a length of about 1/3. The winding shafts 4a and 4b of the above are formed.

The plate 6a may be a circular flat washer-shaped one fitted and spot-welded or brazed, or a shaft member having a snap ring such as a C ring or an E ring positioned and mounted on the four peripheral surfaces of the winding shaft. Both ends of a rod-shaped pin (not shown) may be projected in the intersecting direction with respect to 4 to be inserted and fixed.

Further, the shaft member 4 can withstand the winding of the coil wire 8, and it is sufficient if the left and right winding shafts 4a and 4b are made of a plastic material having a more accurate dimensional shape, U-shaped or U-shaped, and easily bendable. Copper wire, aluminum wire, etc. can be used. In addition, the regulating portion made of a plate, a pin, or the like can be integrally molded with the shaft member 4.

While both ends of the shaft member 4 are gripped by a chuck (not shown) of a rotary drive device or the like to drive the shaft member 4 to rotate, the coil wire 8 is attached to one end side as shown in FIG. 5 (B) in the same manner as in FIG. The coil 9 is formed by winding the coil 9 from a predetermined position (chuck end face position) toward the other end (for example, from the left end to the right end). At this time, the plate 6a on the shaft member 4 acts as a regulating member that regulates the coil wire 8 from winding around the shaft member 4 at the inner end of the winding shaft 4a.

As a result, the coil wire 8 straddles the connecting portion 6 and the plates 6a at both ends thereof, starts winding again from the base end portion of the right winding shaft 4b, continues winding in the right direction, and reaches the right winding shaft 4b. The winding to the predetermined position (chuck end face position) is completed.

Next, from the state of FIG. 5 (B), the left and right winding shafts 4a and 4b are bent 90 ° in the direction of the arrow (downward) in the same figure to make them parallel, and deformed (posture change) into the form of FIG. 5 (C). This deformation can be easily plastically deformed by, for example, holding and fixing the connecting portion 6 portion with a plier-shaped gripper and pushing and bending both ends downward.

The shaft member 4 with a coil deformed as described above has a pair of cores 12a and 12b in which the open ends of the winding shafts 4a and 4b are supported in parallel on the work 12 side with the same diameter and the same pitch. As shown in FIG. 5C, the left and right coils 9 are slid downward and fitted to the left and right cores 12a and 12b at the same time. After fitting, as shown in FIG. 5D, the winding shafts 4a and 4b are removed as the entire shaft member 4, so that the work of mounting the coil 9 on the final work is completed.

In this example, the left and right winding shafts 4a and 4b can be integrally molded, and the shaft member 4 after winding changes its posture by plastic working, so that the hinge 6 and the holding member 11 and the like are used as in the above-described embodiment. It is unnecessary and has the advantage of reducing costs.

3 Winding tool 4 Shaft member 4a, 4b Winding shaft 6 Connecting part (hinge)
6a Regulator 7a Dowel 7b Dowel hole 8 Coil wire 8a Continuous part 9 Coil 11 Holding member (holding part)
11a Dowel 12 Work 12a, 12b Core

Claims (8)

A plurality of winding shafts (4a, 4b) forming a coil (9) by spirally winding a coil wire (8) not coated with a cohesive agent and the winding shafts (4a, 4b) are the same axis (O). It is provided with a connecting portion (6) which is connected to the top and holds the coil wire (8) in a winding posture capable of continuously winding the coil wire (8), and the connecting portion (6) is connected to adjacent winding shafts (4a, 4b). ) And the wound coil (9) are slid to the cores (12a, 12b) of the work (12) so that the coil winding tool can be bent or curved to the mounting posture. It protrudes toward the outer peripheral side of the connecting portion (6) around the axis of the winding shaft (4a, 4b), and restricts the winding of the coil wire (8) around the winding shaft (4a, 4b) between adjacent coils (9). The coil winding according to claim 1, wherein a continuous portion (8a) of the required coil wire (8) is formed between the adjacent coils (9) and (9) to provide a regulating portion (6a) that allows coil spacing. Wire tool. The coil winding tool according to claim 1 or 2, wherein the connecting portion (6) is formed of a plastic member that can be bent and deformed. The coil winding tool according to claim 3, wherein a plurality of winding shafts (4a, 4b) and a connecting portion (6) are formed of one rod-shaped shaft member (4). The invention according to any one of claims 1 to 4, wherein the winding shafts (4a, 4b) have substantially the same diameter as the corresponding core (12a, 12b) on the work (12) side, and have the same pitch and parallel to each other in the mounting posture. Winding tool for coils. The coil winding tool according to claim 1 or 2, wherein the connecting portion (6) is a hinge that connects adjacent winding shafts (4a, 4b) and also serves as a regulating portion (6a). The coil winding tool according to claim 6, further comprising a winding shaft (4a, 4b) changed to a mounting posture and a holding portion (11) for fixedly holding the posture of the coil (9). The coil winding according to claim 6 or 7, wherein the winding shafts (4a, 4b) are mounted on the work (12) together with the coil (9) and are also used as the cores (12a, 12b) of the work (12). Wire tool.

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