JPH02215111A - Winding of toroidal coil - Google Patents

Abstract

PURPOSE:To conduct a winding operation reliably and easily by a method wherein the tip part side of the wire material led out from a reel is hank-reeled, the hank-reeled part is twisted, the twisted part is cut in the middle part, and a winding operation is conducted by repeatedly inserting the wire material into the hole of a core through the intermediary of a cut part. CONSTITUTION:The wire material 2 led out from a reel 1 is passed through the guide hole 12 by the shuttle 13 of a twisting machine 3, the wire material 2 is pulled out to a winding machine 4 passing through the hole 17 of a hollow shaft 8 on which a hook 9 is attached, and the tip of the wire material is retained by a retaining part 15. Then, the shuttle 13 is moved on an annular track making a turn thereon, the wire material 2 is engaged to a pin 11 and the hook 9 while the wire material 2 is being pulled in, and the wire material is hank-reeled. Then, when the shuttle 13 returns to its initial position, the hook 9 is pivotally rotated through the intermediary of the hollow shaft 8, the hank-reeling part is twisted, and a twisted part 5 is formed. Then, the twisted part 5 is led to the winding machine 4, and the twisted part 5 is cut in the middle part by a cutter 16. The wire material 2 is wound on a core 6 with the end section of the above-mentioned cut part as a tip. In this case, a winding operation is conducted by repeatedly inserting the wire material 2 into the hole 19 of the core 6 with the end section of the cut part 18 as a tip.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a method of winding a toroidal coil.

(Prior art) When manufacturing a toroidal coil, the operation of inserting a wire into a hole in a ring-shaped core is repeated.In this case, if the core hole diameter is small and the wire is thin, the tip of the wire may become loose. It may bend and touch the wall of the core or the already wound wire, making it impossible to insert it into the hole in the core.

Therefore, a winding method has been proposed in which a piano wire or the like is glued to the tip of the wire to facilitate insertion of the wire, and a winding method in which an insertion jig is attached to the tip of the wire to insert the wire (in Japanese Patent Application Laid-Open No. (See Publications No. 154311, 1983, No. 112374, etc.).

(Problem to be solved by the invention) However, in the method of gluing piano wire, etc. to the tip of the wire, the rigidity is higher than that of the wire (copper wire), so insertion into the core hole is reliable, but A process of gluing the wire, etc. is required, and there is also a concern that the bonded portion to the piano wire may peel off during winding.

In addition, with the method using an insertion jig, it is difficult to reliably clamp wire rods that break easily to the jig, and since the diameter of the jig is larger than the wire rod, it is difficult to insert the wire rod when the core hole is small. .

This invention aims to solve these problems.

(Means for Solving the Problems) The present invention involves twisting the tip end side of a wire pulled out from a reel, twisting this twisted part, cutting the twisted part in the middle, and passing the wire through the cut end. is repeatedly inserted into the hole of the ring-shaped core and wound.

(Function) Therefore, since the rigidity of the tip end of the wire is increased, even if the wire is thin and the diameter of the core hole is small, it can be inserted into the core hole reliably and winding can be easily performed.

(Example) FIG. 1 is a schematic diagram showing the flow of each work when implementing the wire winding method of the present invention. The twisted part is twisted to form a twisted part, and in this state, it is guided to the winding machine 4, where the twisted part 5 is cut in the middle, and the wire 2 is made with the cut end as the tip. is wound around a ring-shaped core 6.

As shown in FIG.
The hook 9 is rotatable together with the hollow shaft 8 by a drive device (not shown), and the bin 11 is rotated by a drive device (not shown). Hook 9 through arm 10
It is formed so that it can be tilted to the side. Further, the shuttle 13 is attached to a chain 14 that is hung between two chain wheels (not shown) connected to a drive device (not shown), and is configured to be movable on a predetermined annular track around the hook 9 and the bottle 11. has been done.

The winding machine 4 includes a holding section 15 for the wire rod 2 and a cutter 16,
A winding mechanism (not shown) is also provided.

This winding mechanism may be a known one.

That is, the wire rod 2 pulled out from the reel 1 is as shown in FIG.
>, the wire is passed through the guide hole 12 of the shuttle 13 of the wire twisting machine 3, and then pulled out to the winding machine 4 through the hole 17 of the hollow shaft 8 to which the hook 9 is attached, and the tip is held by the holding part 15.

Next, the shuttle 13 is moved once on the annular orbit from the initial position shown in FIG. Bin 11 and hook 9 as shown in Figure 3(B)
It is caught in the water, and the skein is passed between them.

Next, when the shuttle 13 returns to the initial position, FIG.
The hook 9 is rotated through the hollow shaft 8 as shown in FIG.
is formed.

Next, when the twisted part 5 is formed, the wire rod 2 is further drawn out to the winding machine 4 while tilting the bin 11 via the arm 10, and the twisted part 5 is guided to the winding machine 4.

Then, the twisted part 5 guided to the winding machine 4 is cut by a cutter 16 in the middle.
The wire rod 2 is then cut at a ring-shaped core 6 with this cut end as the tip. In this case, winding is performed by repeatedly inserting the wire 2 into the hole 19 of the core 6 with the cut end 18 at the tip, as shown in FIG.

By twisting the tip of the wire 2 in this way, the rigidity of the tip of the wire 2 is sufficiently increased, and therefore even if the wire 2 is thin and the core hole 19 is small, insertion into the core 19 is ensured. be able to.

In addition, by twisting the tip of the wire 2, a straight tip with no bends can be obtained, and therefore the position of the tip of the wire 2 can be kept constant during insertion, making insertion easier and more reliable. can be done.

Further, unlike the conventional example, there is no bonding process between the wire and the via/wire, etc., so automation is easy and suitable.

Further, since the winding work and the m-wire work can be performed in parallel, high production efficiency can be obtained. That is, by cutting the wire with the tip end twisted to a predetermined length and then moving it to the winding process, there is no overlap with the next wire twisting process.

In this embodiment, if the cut strands 5 hit the wall of the core 6 or the wire 2 that has already been wound, the strands 5 may come apart, but in this case, the strands 5 may be covered with a simple material such as Cemedine. If you apply a suitable adhesive, there is no need to worry about it coming apart, and it is easy to fix.

(Effects of the Invention) As described above, the present invention involves twisting the tip end of a wire pulled out from a reel, twisting this twisted part, cutting the twisted part in the middle, and passing the wire through the cut end. By repeatedly inserting the wire into the hole of the ring-shaped core and winding the wire, even if the wire is thin and the core hole is small, the winding of the Trouble coil can be performed reliably and easily.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram showing an embodiment of the present invention, Figure 2 is a perspective view of essential parts of a wire twisting machine, and Figures 3 (A,) to (D) and 4 are explanatory diagrams of the operation. 1... Reel, 2... Wire rod, 3... Twisted #iI iso,
4... Winding machine, 5... 1 natural part, 6... Core, 9...
...7 Tsuku, 11...Bin, 13...Shuttle, 1
5... Holding part, 16... Cutter, 18... Cutting end, 19... Core hole.

Claims (1)

[Claims] The tip end of the wire pulled out from the reel is twisted, the twisted part is cut in the middle, and the wire is repeatedly inserted into the hole of the ring-shaped core through the cut end to wind it. How to wind a toroidal coil.