JPH0194608A - Winding method - Google Patents

Abstract

PURPOSE:To enable a winding device to be made small-sized and provide the improvement of the production capacity of windings by chucking the leading end of a wire and inserting it into a winding hole from one side ot the object for winding, winding the wire around the outer periphery of rollers with the leading end of the wire being chucked at the other side ot the object for winding, and moving the roller to impart tension to the wire. CONSTITUTION:When a wire 2 is inserted into the winding hole of the object for winding 1 and wound around the surrounding part to be subjected to winding, the leading end of the wire 2 is chucked by a chuck 13 and inserted into the winding hole from one side of the object for winding 1, and the leading end of the wire 2 inserted into the winding hole is chucked and received at the other side of the object for winding 1 by chucks 14, 15 and wound around the outer periphery of rollers 17, 18. Then, the roller 18 is moved to draw out the wire 2 inserted into the winding hole, thereby providing tension. Thereafter, for instance, after the wire 2 is pressed to the part to be subjected to winding by a wire presser 22 and a wire pressing roller 23 and wound once, the rollers 17, 18 are moved upward to open the wire 2, and an operation similar to the foregoing is repeated with the wire 2 being wound around the part to be subjected to winding.

Description

DETAILED DESCRIPTION OF THE INVENTION (Objective of the Invention) (Industrial Application Field) The present invention relates to a winding method for winding a wire around a wound body having a winding hole.

(Prior Art) For example, a toroidal coil, which is a toroidal coil used in a magnetic head of a VTR head, a mag amp, and a noise filter, has a toroidal core 1 as a wound body and a copper wire, etc., as shown in FIG. wire 2 is wound around it. By the way, when winding the wire 2 around the toroidal core 1 in a spiral manner, if the inner diameter of the toroidal core 1 is relatively large and the wire 2 is thin, a winding ring containing the wire 2 is set in the core hole 3, This is automatically performed by rotating this winding ring and rotating the toroidal core 1 in synchronization with this rotation. However, if the inner diameter of the toroidal core 1 becomes small, the widening ring cannot be inserted into the core hole 3, and if the wire 2 becomes thick, a large tensile force is required to wind the wire 2. Therefore, it is difficult to automatically wind the wire 2 around the toroidal core 1, and winding of the wire 2 is performed manually.

However, manual winding results in unstable quality such as the number of turns of the wire 2 being too large and the dimensions of the toroidal core being uneven. Furthermore, the production amount and production capacity of the toroidal core become unstable.

FIG. 11 shows a conventional first winding method, in which 1 is a body to be wound, 2 is a wire, and 3 is a winding hole.

First, as shown in (a), the winding portion 4 of the winding body 1
The distal end of the wire 2, whose base end is held by a wire holding mechanism (not shown), is chucked by the insertion chuck 5 and inserted into the winding hole 3 from the left side, and as shown in FIG. On the right side, the tip of the wire 2 is chucked by a receiving chuck 6. As shown in (C), the receiving chuck 6 is moved to the right to apply tension to the wire 2, and the wire 2 is wound around the wire-wound portion 4. next,(
As shown in d), the receiving chuck 6 is rotated around the wire-wound body 1 to move the tip of the wire 2 to the left side, and then (
Returning to step a), the wire 2 is passed through the insertion chuck 5 and inserted into the winding hole 3. By repeating this operation, the wire 2 is wound around the wound portion 4.

Figure 12 shows the conventional second winding method, (C)
The steps up to this point are the same as the first method, but in (d), the body 1 to be wound is rotated 180° in the direction of the arrow and the wire 2 is wound around the part 4 to be wound. Next, as shown in (e), the direction of the receiving chuck 6 is changed in the direction of the arrow, and the receiving chuck 6 is inserted into the winding hole 3 from the right side of the wire to be wound 1, and the tip of the wire 2 is received by the receiving chuck 6 on the left side. Then, return to (a).

By the way, in both cases, the length of the wire is required according to the number of windings, and when the wire 2 is drawn out and tension is applied during winding, the longer the length of the wire 2, the longer the drawn-out distance becomes. Withdrawal time will also be longer.

(Problems to be Solved by the Invention) By the way, as mentioned above, during winding, the wire 2
When pulling out the wire to apply tension, the longer the length of the wire 2, the longer the pulling distance becomes, the longer the chuck stroke becomes, the larger the device becomes, and the longer the winding takt time becomes, reducing the production capacity. This is the cause of the decline in

This invention was made in view of the above-mentioned circumstances, and its purpose is to provide a winding method that can reduce the size of a winding device and improve the winding production capacity. .

[Structure of the invention] (Means and effects for solving the problem) This invention has the following features:
The tip of the wire is chucked with a chuck and inserted into the winding hole from one side of the body to be wound, and then the tip of the wire inserted into the winding hole is chucked with the chuck on the other side of the body to be wound. The wire is wound around the outer periphery of a roller, and the roller is moved to pull the wire out of the winding hole to apply tension.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 schematically shows a winding device, and 11 is a work holding mechanism, which holds a part of the workpiece 1 by a pair of holding claws 12 and 12 that open and close in the vertical direction. It is held and can be rotated around the axis of the winding hole 3. An insertion chuck 13 is installed below the winding body 1 facing the winding hole 3, and a first receiving chuck 14 and a second receiving chuck 15 are provided above.

This first receiving chuck 14 and second receiving chuck 15
As shown in FIG. 2, they are arranged in parallel to the chuck body 16 and can be opened and closed independently.
The outer periphery of the wire-wound body 1 can be rotated.

The insertion chuck 13 and the first and second receiving chucks 14 and 15 have a function of chucking the wire 2 to be wound around the wire-wound portion 4 of the wire-wound body 1.

Further, 17 is an upper roller, and 18 is a lower row bow. As shown in FIG. 3, these are grooved row bows having grooves 17a and 18a on their outer peripheral surfaces for passing the wire 2 through. The upper roller 17 is supported by a rotating arm 20 that is rotatable about a pivot shaft 19, and the lower roller 18 is configured to be vertically movable by a roller lifting mechanism 21.

Furthermore, as shown in FIG. 4, a wire presser 22 is provided on the upper part of the wire-wound body 1 facing the wire-wound part 4, and a wire presser 22 is provided on the side of the wire-wound body 1 around the outer circumference of the wire-wound part 4. A wire pressing roller 23 is provided opposite the surface.

Next, a method for winding the wire 2 around the winding portion 4 of the winding body 1 using the winding device configured as described above will be explained based on FIGS. 5(a) to (f). .

First, as shown in FIG. 5(a), the proximal end of the wire 2 is held by a wire holding mechanism (not shown) so that the wire 2 is in close contact with the wound portion 4 of the wound body 1, and then A loop is formed in the wire 2 and its tip is chucked by an insertion chuck 13. Next, as shown in (b), when the insertion chuck 13 is raised, the tip of the chucked wire 2 is inserted into the winding hole 3. This moment,
A first receiving chuck 14 and a second receiving chuck 15 are installed on the lead-out side of the winding hole 3. First, the first receiving chuck 14 chucks the wire, and then the necessary The wire 2 is pulled out by the length, and then the second receiving chuck 15 chucks the wire 2. After chucking the tip of the wire 2 inserted into the winding hole 3 in this manner, the chuck body 16 rotates around the outer periphery of the wire-wound body 1 in the direction of the arrow, as shown in (C). Therefore, the chuck main body 16 moves below the wire-wound body 1, that is, moves to the wire insertion side, and transfers the wire 2 to the insertion chuck 13. At this time, the middle part of the wire 2 is connected to the upper roller 17.
and a groove 178,1 provided on the outer periphery of the lower roller 18.
8a. Next, as shown in (d),
The lower roller 18 is moved downward by the roller lifting mechanism 21 to apply tension to the wire 2. The upper roller 17 rotates in the direction of the arrow about the pivot shaft 19 while applying tension to the wire 2. At this time, the lower roller 18 descends as the upper roller 17 rotates. Therefore, the wire 2 inserted into the winding hole 3 is pulled out by the downward movement of the upper roller 17, is applied with a predetermined tension, and is wound around the wire-wound portion 4. Here, as shown in (e), the wire 2 is wound on the upper part of the wire-wound part 4 by the wire presser 22 and around the side part of the wire-wound part 4 by the wire presser roller 23. After the wire 2 is wound once around the wound portion 3 in this way, the upper roller 17 and the lower roller 18 move upward to release the wire 2, and (
With the wire 2 wound around the wire-wound portion 4 as shown in f), return to the position of (a) described above and repeat the same operation as described above.

By repeating this operation, the wire 2 is
The work holding mechanism (not shown) is opened for each winding, and the work holding mechanism 11 holds the wound body 1 at a predetermined angle around the axis of the winding hole 3. Rotate. When the wire 2 is further wrapped around the wire to be wound 1, the workpiece holding mechanism 11 is opened and returned to its original position, and the wire 2 is spirally wrapped around the wire to be wound 4. The wire is wound in a shape. In this way, we have a roller that wraps the wire around the wire to be wound, and a roller that pulls the wire out of the winding hole and applies tension, and these roles are shared, so the rotation radius of the roller that wraps the wire can be shortened. This has the effect of improving production capacity by downsizing the device and reducing winding takt time.

FIG. 6 shows a second embodiment of the winding device, in which 31 is a first work holding mechanism and 32 is a second work holding mechanism. These have a pair of clamping claws 33.33,
A part of the body 1 to be wound can be held, and the body 1 can be rotated about a center line S perpendicular to the axis of the winding hole 3. Further, the first work holding mechanism 31 is rotatable around the winding hole 3.

A chuck machine 134 is provided on the side of the first and second work holding mechanisms 3L32. This chuck mechanism 3
4, as shown in FIG. 7, an insertion chuck 37 and a receiving chuck 38 are arranged side by side on the upper part of the main body 36. The insertion chuck 37 and the receiving chuck 38 are configured to be able to be opened and closed independently, and to be able to be pushed out and retracted independently.

Further, the chuck mechanism 34 can move forward and backward with respect to the wire-wound body 1 and can also rotate around O. Further, first and second rows 539 and 40 for applying tension to the wire 2 are provided on the left and right sides of the wire-wound body 1 .

Next, the winding method of the second embodiment is explained in Figs. 8(a) to (h).
). First, as shown in (a), the insertion chuck 37 of the chuck mechanism 34 protrudes, and the receiving chuck 38 retracts. Then, the wire 2 is connected to the wound portion 4
The proximal end portion is held by a wire holding mechanism (not shown) so as to be in close contact with the wire. Here, the tip of the wire 2 is chucked by the insertion chuck 37, and the chuck mechanism 3
When wire 4 moves to the left, wire 2 moves as shown in (b).
The tip of the wire is inserted into the winding hole 3. A receiving chuck 38 of a chuck mechanism 34 protrudes from the left side of the wire-wound body 1 and chucks the tip of the inserted wire 2, and the insertion chuck 37 opens and retracts. Next, as shown in (C), when the chuck machine 41134 moves to the left, the wire 2 is pulled out, and the insertion chuck 37 protrudes and chucks the wire 2 at a predetermined position. In this state, (d
), the chuck mechanism 34 rotates at 1 centering on O.
When rotated by 80 degrees, a loop is formed in the wire 2 as shown in (e). Furthermore, the body 1 to be wound is rotated around S by the first and second work holding mechanisms 3L 32 while applying a constant tension. Next, as shown in (h), when the roller 40 moves to the left, the wire 2
Tension is applied to the Next, the row 540 is moved in the axial direction to release the wire 2, and the chuck mechanism 34 is moved in the axial direction of the winding hole 3 as shown in (Q). At this time, similarly to Embodiment 1, the wound body 1 is moved by pitch by the first and second work holding mechanisms 31 and 32, and (h
), the chuck mechanism 34 moves from left to right to insert the tip of the wire 2 into the winding hole 3.

By repeating this operation, the wire 2 is attached to the wound part 4.
is spirally wound.

Further, in the second embodiment, the chuck mechanism 34 is rotated around point 0, and the roller 40 is moved left and right to wrap the wire 32 around the roller 40.
), as shown in FIG. 11, both the chuck mechanism 43 and the roller 40 rotate around point 0', and (d'),
As shown in (e') and (f'), the wire 2 is
You can also wrap it around.

Furthermore, the first embodiment can be modified as listed below. 1) The number of rollers may be set arbitrarily. 2) The moving direction of each 0-ra may be set arbitrarily. 3
) Instead of providing wire grooves on each roller, the rollers may be sandwiched between guides or may be made large enough to prevent the wire from coming off. 4
) The wire may be inserted, received, and wrapped by a guide and a wire feed roller. 5) If the wire has low rigidity and can be brought into close contact with tension alone, the wire presser 22 may be omitted. Instead of this wire presser, a jig for pressing the wire may be provided between the wound body and the roller. 6) The lower roller may be omitted if the receiving chuck 15 is stopped in the middle, the wire is pulled out using only the upper roller 17 to apply tension, and the receiving chuck 15 and the upper roller 17 are rotated synchronously.

In the above embodiments, the body to be wound is round, but it goes without saying that the present invention can also be applied to a rectangular body to be wound.

〔Effect of the invention〕

As explained above, according to the present invention, since the wire is sequentially wound around the cross section R of the winding portion of the body to be wound,
The wound portion and the wire can be brought into close contact with each other. In addition, since the wire inserted into the winding hole of the object to be wound is pulled out by the movement of the rollers and tension is applied, the wire pull-out stroke is shortened, resulting in smaller equipment and reduced winding takt time. This has the effect that it is possible to improve one's abilities. Moreover, by employing rollers, the wire does not have a tendency to bend, and the wire can be wound smoothly around the part to be wound.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a schematic side view of the winding device, FIG. 2 is a perspective view of the receiving chuck mechanism, and FIG. 3 is a roller FIG. 4 is an enlarged sectional view of the section ■ in FIG. Fig. 6 is a plan view of the winding device, Fig. 7 is a perspective view of the chuck mechanism, Fig. 8 is an explanatory diagram of the winding method, Fig. 9 is a perspective view of the toroidal coil, and Fig. 10 is the invention. FIG. 11 and FIG. 12 are explanatory diagrams of a conventional winding method, showing a modification of the second embodiment. 1... Wound body, 2... Wire, 3... Winding hole,
4...Wound part, 13-15-...Chuck, 17.
18... Laura. Applicant's Representative Patent Attorney Takehiko Suzue Figure 4 Figure 6 Figure 7 Figure 5 (d) (e) (f) Figure 8 Figure 9 Figure 1O Figure 11 (a) (b) (C) Figure 12 (e) et al. (f) Figure 12

Claims (3)

[Claims] (1) In a winding method in which a wire is inserted into the winding hole of a winding body having a winding hole and the wire is wound around the surrounding winding part, the tip of the wire is chucked with a chuck. an insertion means for inserting the wire into the winding hole from one side of the body to be wound; and a chuck for chucking the tip of the wire inserted into the winding hole on the other side of the body to be wound; A wire winding method comprising: a wire winding means for receiving and winding the wire around the outer circumference of the roller; and a tension applying means for moving the roller to pull out the wire inserted into the winding hole and applying tension to the wire. (2) The winding method according to claim 1, wherein the wire is wound by rotating around the body to be wound. (3) The winding method according to claim 1, wherein the body to be wound rotates and the wire is wound around the part to be wound.