JP2003299221A - Method and device for removing cover of coil wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably and efficiently remove a cover partially in its longitudinal direction without causing the breaking of coil wire. <P>SOLUTION: Coil wire 10 is retained apart in its longitudinal direction with a retaining means 12 which is equipped with two pairs of upper and lower rollers 12a and 12b, the opposite side of the coil wire 10 from the cover removal between the points of the retention is supported at the two points in the longitudinal direction of the coil wire 10 with the supports 14a and 14b of a supporting member 14, and a cutting edge 16 is applied with tension to the side of cover removal of the coil wire 10 between the points of support. Then, the supporting member 14 and the cutting edge 16 are shifted synchronously in the longitudinal direction of the coil wire 10, and the cover is cut and removed in longitudinal direction while adding tension to the coil wire 10 by the cutting edge 16. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil wire covering removal method and apparatus for partially cutting and removing the coil wire covering at arbitrary positions in the longitudinal direction.

[0002]

2. Description of the Related Art When winding a coil wire, the insulating coating of the coil wire is partially removed at a predetermined position in the lengthwise direction in order to previously form an energization contact portion with an electrode.

Conventionally, in order to partially remove the insulating coating of the coil wire, the coil wire is held at two positions in the longitudinal direction,
As shown in FIG. 4, while being held, the coil wire 10
The back surface of the coil wire 10 is supported by the support base 8 and the cutting blade 16 is pressed against the front surface side of the coil wire rod 10 to keep the intrusion amount of the blade tip to about the coating thickness and move the cutting blade 16 in that state or Is moved to partially cut and remove the coating of the coil wire rod 10 in the length direction.

[0004]

However, in the above conventional method, when the coil wire is thin or thin,
Even the conductor of the wire material is cut, and disconnection is likely to occur. Further, when the cutting edge is worn, the cutting of the coating tends to be unstable, and it is necessary to finely adjust the amount of penetration of the cutting edge due to the difference in the diameter of the coil wire, and the adjustment range is narrow. Therefore, there is a problem that the coating cannot be removed stably and efficiently.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method and apparatus for removing a coating of a coil wire which enables stable and efficient removal of the coating partially in the length direction without causing breakage of the coil wire. Is to provide.

[0006]

In order to solve the above-mentioned problems, the present invention is a method for removing a coating of a coil wire rod, wherein a coil wire rod held at two positions in the length direction is held between the held coil wire rods. In a state of being supported by a supporting member at least at two positions and applying a tension by applying a cutting blade to the coil wire material while being supported, the supporting member and the cutting blade and the coil wire material are relatively moved, It is characterized in that a part of the coating of the coil wire is cut and removed by the cutting blade. According to the present invention, a cutting blade can be provided at the tip of the support portion of the support member so that the coating of the coil wire on the support member side is also cut and removed in parallel.

Further, the present invention is a coil wire rod coating removing device, wherein a holding means for holding the coil wire rod at two points in the lengthwise direction and a support for supporting the coil wire rod at at least two points between the holding points. A supporting member having a portion, a cutting blade applied so as to apply tension to the coil wire between the supporting portions, the supporting member and the cutting blade and the coil wire are relatively moved, and A moving means for cutting and removing a part of the coating of the coil wire rod is provided. According to the present invention, a cutting blade can be provided at the tip of the support portion of the support member.

According to the present invention, since the coil conductor is tensioned by the cutting blade, the follow-up property of the blade tip invasion into the coating is high, and the intrusion amount of the blade tip into the coating can be maintained substantially constant. Therefore, even if the coil conductor is a thin wire or a thin wire, the coating can be partially and removed in the longitudinal direction stably and efficiently without cutting the conductor of the coil conductor. Further, even if the cutting edge is worn, the coating can be satisfactorily cut and removed without causing cutting instability of the coating. Furthermore, the allowable range of the amount of penetration of the cutting edge with respect to the coating is widened, and fine adjustment due to the difference in wire diameter becomes unnecessary.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below.

FIG. 1 is an explanatory view showing a method of removing the coating of a coil wire according to an embodiment of the present invention. As shown in FIG. 1, the removing device used in the method of the present embodiment has a holding means 12 for the coil wire 10, a support member 14 for the coil wire 10, and a cutting blade 16 for removing the insulating coating of the coil wire 10. And a moving means (not shown) that carries the support member 14 and the cutting blade 16 and moves in synchronization with each other.

The holding means 12 is a pair of upper and lower rollers 12.
Two sets of a and 12b are arranged at intervals in the length direction of the coil wire 10. The holding means 12 holds the coil wire 10 by sandwiching the coil wire 10 between the rollers 12a and 12b of each set so as to hold the coil wire 10 at two positions in the longitudinal direction so as not to loosen.

The support member 14 includes two parallel support portions 14
The support portion 14a, 14 is composed of a frame body having a, 14b.
b is formed in a rectangular shape of the same length, and supports 14a and 14a
The distance from b is larger than the thickness of the cutting edge of the cutting blade 16. The width (length in the direction perpendicular to the paper surface) of the tips of the supporting portions 14a and 14b is at least larger than the diameter of the coil wire 10. The support member 14 is arranged between the two sets of rollers of the holding means 12 on the non-covered side opposite to the side on which the coating of the coil wire 10 is removed, and is held when removing the coating on the coil wire 10. Support portions 14a, 14b are provided on the non-covered side of the coil wire 10 while being held by the means 12.
To support the non-covered side of the coil wire 10 at two locations in the longitudinal direction.

The cutting blade 16 is a wedge-shaped cutter blade and has a thickness substantially the same as the diameter of the coil wire 10. The cutting blade 16 is disposed between the support portions 14a and 14b of the support member 14 on the coating removal side of the coil wire rod 10, and when removing the coating of the coil wire rod 10, the support portions 14a and 1b.
It is applied so as to apply tension to the coating removal side of the coil wire 10 while being supported by 4b.

The moving means (not shown) includes, for example, a moving mechanism including a rack and a pinion, and a supporting member 14 and a cutting blade 16 supported by a supporting member (not shown) are mounted on a moving table attached to the rack, and these supporting members are provided. 14 and the cutting blade 16 can be moved in synchronization with each other in the length direction of the coil wire 10.

In the present embodiment, the moving means of the above removing device is actuated to move the supporting member 14 and the cutting blade 16 in the lengthwise direction of the coil wire 10 in synchronization with each other, and the supporting member 1
While the tension is applied to the coil wire 10 by the cutting blade 16 between the four support portions 14a and 14b, the coating of the coil wire 10 is cut in the length direction.

At this time, the coil wire 1 is cut by the cutting blade 16.
Since the tension is applied to 0, the followability of the blade edge penetration into the coating is high, and the blade edge penetration amount into the coating can be maintained substantially constant. Therefore, the coil conductor 10
Even if is a thin wire or a thin wire, the coating can be partially cut and removed in the longitudinal direction without cutting the conductor of the coil conductor 10. Further, even if the cutting edge is worn, the coating can be satisfactorily cut and removed without causing cutting instability of the coating. Furthermore, the allowable range of the amount of penetration of the cutting edge with respect to the coating is widened, and fine adjustment due to the difference in wire diameter becomes unnecessary. Therefore, according to the present embodiment, the coating of the coil wire can be partially stably and efficiently removed in the length direction.

Another embodiment of the present invention is shown in FIG. In the present embodiment, in the embodiment of FIG. 1, a supporting portion 14c longer than these is further provided between the supporting portions 14a and 14b of the supporting member 14 of the coating removing device, and the coil wire rod 1
0 is supported at three positions of the supporting portions 14a, 14c, 14b,
Correspondingly, the two cutting blades 16a and 16b are attached to the support 1
It was made to support by 7 and was arrange | positioned at the coating cutting side of the coil wire 10. The other structure of the present embodiment is basically the same as that of the embodiment of FIG. 1, and the same reference numerals in FIG. 2 as those in FIG. 1 denote the same members.

The cutting blade 16a has the support portions 14a and 14a.
It is applied so as to apply a tension to the coil wire 10 between the cutting edge 16c and the cutting portion 16c, and the cutting blade 16b is applied so as to apply a tension to the coil wire 10 between the supporting portions 14c and 14b.

Therefore, according to the present embodiment, when the support member 14 and the cutting blades 16a and 16b are moved synchronously in the lengthwise direction of the coil wire rod 10 by the moving means, the coating of the coil wire rod 110 becomes the support portion 14a. 14c is cut and removed by the cutting blade 16a, and is cut and removed by the cutting blade 16b between the support portions 14c and 14b. Except for this, the coating of the coil wire 10 is cut and removed twice conveniently. As a result, the coil wire rod 1
It has the effect of making the removal of the 0 coating more complete.

FIG. 3 shows still another embodiment of the present invention. In the present embodiment, the cutting blades 16a and 16b are provided at the tips of the supporting portions 14a and 14b of the supporting member 14 of the coating removing device in the embodiment of FIG.
The coil wire 10 is supported by 6b, and the coating on the support portion side of the coil wire 10 can be removed by cutting in parallel with the cutting removal of the coating of the coil wire 10 by the cutting blade 16. Other configurations of the present embodiment are basically the same as those of the embodiment of FIG. 1, and the same reference numerals as those in FIG. 3 denote the same members in FIG.

The present embodiment is suitable for removing the coating on the front and back surfaces to remove the coating on the coil wire material such as the rectangular wire material forming the energizing contact portion.

In all of the above embodiments, the cutting blade and the supporting member are moved in the length direction of the coil wire.
It suffices to move the coil wire rod and the cutting blade and the supporting member relative to each other. Therefore, the coil wire rod may be moved in the longitudinal direction without moving the cutting blade and the supporting member.

[0023]

As is apparent from the above description, according to the present invention, the coating can be partially removed in the length direction in a stable and efficient manner without causing breakage of the coil wire.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a coil wire rod coating removal method of the present invention.

FIG. 2 is an explanatory diagram showing another embodiment of the present invention.

FIG. 3 is an explanatory diagram showing still another embodiment of the present invention.

FIG. 4 is an explanatory view showing a conventional method for removing a coating of a coil wire.

[Explanation of symbols]

10 coil wire 12 Holding means 12a, 12b roller 14 Support members 14a, 14b, 14c Supporting part 16 cutting blade 16a, 16b Cutting blade

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takaaki Imai             6-16-20 Ueno, Taito-ku, Tokyo Sun invitation             Denden Co., Ltd. (72) Inventor Susumu Hinohara             6-16-20 Ueno, Taito-ku, Tokyo Sun invitation             Denden Co., Ltd. (72) Inventor Ken Ito             6-16-20 Ueno, Taito-ku, Tokyo Sun invitation             Denden Co., Ltd. (72) Inventor Hajime Yamazaki             6-16-20 Ueno, Taito-ku, Tokyo Sun invitation             Denden Co., Ltd. F-term (reference) 5G353 CA05 DA08 DA09

Claims (4)

[Claims] 1. A coil wire rod held at two points in the length direction is supported by a supporting member at at least two points while the coil wire rod is held, and a tension is applied to the coil wire rod while the coil wire rod is being held. In the state of adding, by relatively moving the support member and the cutting blade and the coil wire,
A method for removing coating of a coil wire rod, comprising cutting and removing a part of coating of the coil wire rod with the cutting blade. 2. The coil wire rod according to claim 1, wherein a cutting blade is provided at a tip of a support portion of the support member, and the coating of the coil wire rod on the support member side is also cut and removed in parallel. Coating removal method. 3. A holding means for holding the coil wire at two points in the lengthwise direction, a support member having a support part for supporting the coil wire at at least two points between the holding points, and between the support parts. A cutting blade that is applied so as to apply tension to the coil wire rod, a moving member that relatively moves the support member and the cutting blade, and the coil wire rod, and causes a part of the coating of the coil wire rod to be cut and removed by the cutting blade. And a means for removing coating of coil wire. 4. The coil wire rod coating removing apparatus according to claim 3, wherein a cutting blade is provided at a tip of a supporting portion of the supporting member.