JPH0613550Y2 - Lead wire coating stripping device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a lead wire in which a cutting blade and a coating stripping blade are used to cut a lead wire and at the same time slightly strip the coating portion of the lead wire near the cutting portion. The present invention relates to an improvement of the coating stripping device.

[Conventional technology]

Japanese Utility Model Application No. 48-133537 (Japanese Utility Model Application No. 50-77887)
No.), contact No. 56-103917, and Japanese Utility Model Application No. 47-11686 (Actual No. Sho 48-884).
72) as disclosed in the microfilm,
A pair of cutting blades and a coating stripping blade are arranged to face each other on both sides of the lead wire, and at the same time the lead wire is cut by advancing the pair of cutting blades and a coating stripping blade, the coating portion of the lead wire near the cutting portion is removed. There are already known stripping devices for stripping lead wires.

Then, the strip size (strike margin) of the lead wire by these conventional stripping devices is determined by the distance between the cutting blade and the stripping blade.

That is, in the past, the strip size was determined by sandwiching a block-shaped or plate-shaped spacer between the cutting blade and the coating stripping blade, but when the lead wire is cut, the stripping residue of the coating part covers the cutting blade and the coating blade. Sandwiched between the stripping blade,
Since it becomes an obstacle at the next cutting, it is necessary to remove this debris from the system as soon as possible after cutting the lead wire.

As one of the methods of taking out, conventionally, a separate grooved spacer is sandwiched between the cutting blade and the coating stripping blade, and the fixed scraper plate is placed in the groove provided in this spacer, and the cutting is performed. In the backward movement of the blade and the coating stripping blade, the stripping residue sandwiched between the blades is pushed out by the end portion of the scrubbing plate and removed.

[Problems to be solved by the invention]

As described above, conventionally, a grooved spacer, which is a separate body from the cutting blade, has been mainly used to remove the scraps sandwiched between the cutting blade and the coating stripping blade. Therefore, a space corresponding to the plate thickness of the grooved spacer is formed between the cutting blade and the coating stripping blade, and there is a problem in that it is not possible to shorten the strip size that is the connecting portion of the lead wire. It was

In particular, with the downsizing and complexity of electrical components such as cameras and tape recorders, the lead wires used for internal wiring have become extremely thin, and the strip size that forms the lead wire connection part However, in the case of the conventional stripping device, the thickness of the grooved spacer was an obstacle, and it was not possible to obtain a strip size that could meet the demands of the field of electrical equipment. .

That is, in order to obtain a short strip size, it is necessary to make the thickness of the grooved spacer as thin as possible, but there is a limit to reducing this thickness due to the relationship with the slag removing plate, and the conventional groove With the attached spacer, the limit was to produce a strip size of 2.0 mm.

As a result of earnest research to reduce the strip size of the lead wire to 2.0 mm or less, the present inventor once again found that only a grooved spacer, which was separate from the conventional cutting blade, was used. By forming a guide part that can contact the upper and lower ends of the scrubbing plate on itself, the distance between the cutting blade and the coating stripping blade can be narrowed to within a range of 2.0 mm to 1.25 mm, and It has been found that the cutting blade can be guided smoothly by the slag removing plate for removing the shavings sandwiched between the shaving blade and the coating stripping blade, and a very short strip size can be obtained with the present invention. Has completed the coating stripping device.

Therefore, the object of the present invention is to remove the lead wire shavings sandwiched between the cutting blade and the coating stripping blade by the slag removing plate, and to keep the distance between the cutting blade and the coating stripping blade from 2.0 mm to 1.25 mm.
It is an object of the present invention to provide a lead wire coating stripping device that can be narrowed to within the range of (1) and can provide a strip size that can meet the demands of various electric component fields.

[Means for solving problems]

The configuration of the present invention for achieving the above object will be described in detail.
A pair of cutting blades capable of advancing and retracting so as to sandwich the lead wire to be cut and a coating stripping force are arranged to face each other, and at the same time the core wire portion of the lead wire is cut by the cutting blade, and at the same time, the coating stripping blade causes In a lead wire coating stripping device configured to strip the coating portion, a fixed scraper plate is arranged between the cutting blade and the cover stripping blade, and the fixed scraper plate is placed on the upper and lower ends of the fixed scraper plate. A lead wire coating stripping device characterized in that guide portions that can come into contact are formed near the upper and lower end portions in the longitudinal direction of the flat surface of the cutting blade, and the specific configuration thereof will be described in detail below based on the actual development shown in the drawings. explain.

〔Example〕

FIG. 1 is an exploded perspective view of a cutting blade, a scrubbing plate, and a coating stripping blade according to the device of the present invention, FIG. 2 is a front view when cutting a lead wire, and FIG. 3 is III-III of FIG. It is sectional drawing which followed the line, 1 shows a cutting blade, 2 shows a scrubbing board, 3 shows a coating stripping blade, respectively.

Reference numeral 4 in the drawing denotes a lead wire to be cut, 5 denotes a core wire portion of the lead wire 4, and 6 denotes a coating portion made of an insulating material such as polyvinyl chloride resin.

The device of the present invention relates to a lead wire coating stripping device that cuts off the core wire portion 5 of the lead wire 4 and at the same time slightly peels off the coating portion 6 near the cut portion of the lead wire 4. The stripping blades 3, 3 are arranged on both sides so as to sandwich the cutting blade 1 for cutting 5, and the cutting edge of the cutting blade 1 is arranged so as to project slightly ahead of the cutting edges of the coating stripping blades 3, 3 and this is applied to an appropriate frame. While fixing with (not shown), the whole is moved forward from both sides of the lead wire 4 to be cut at the same time by a driving device (not shown) to cut the core wire portion 5 of the lead wire 4 and covered with the covering stripping blade 3. The strip portion of the coating portion 6 is determined by the distance between the cutting blade 1 and the coating stripping blade 3.

Then, when cutting the lead wire 4, the cutting blade 1 and the coating stripping blade 3
Since the shavings of the coating portion 6 are sandwiched between the shavings, the slag removing plate 2 is arranged between the cutting blade 1 and the coating shaving blade 3 to remove the shavings. Since the scraping plate 2 cannot be removed if the scraping plate 2 is retracted simultaneously with the cutting blade 1 and the coating stripping blade 3, the rear end of the scraping plate 2 is provided with a suitable fixing means (not shown). Is fixed by.

Further, as shown in FIG. 1, guide portions 7, 7 are formed near the upper and lower ends in the longitudinal direction of the flat surface 8 of the cutting blade 1,
The guide portions 7, 7 are adapted to come into contact with the upper and lower ends of the scrubbing plate 2. That is, this guide portion 7,
Since the cutting blade 1 is provided with the cutting blade 1, the cutting blade 1 can smoothly move forward and backward without being displaced from the scrubbing plate 2. In addition, the concave portion 9 between the guide portions 7 and 7
It goes without saying that the slag removing plate 2 has such a size that it can slide.

The strip size of the covering portion 6 is determined by the guide portion 7,
It is determined by the thickness of 7 and on the surface opposite to the flat surface 8 on which the guide portions 7, 7 are formed,
It is necessary to add the thickness of the cutting blade 1 to maintain the distance between the adjacent coating stripping blades 3. In this case, a grooved spacer 10 may be used as shown in FIG. Alternatively, a guide portion like that formed on the cutting blade 1 may be formed on the flat surface of the coating stripping blade 3.

According to the present invention, even if the grooved spacer 10 is used on the surface of the guide portion 7, 7 opposite to the flat surface 8 formed by projection, the cutting blade 1 and the coating stripping blade 3 are formed as in the conventional case.
The spacing between them should not be large. That is, conventionally, since the grooved spacers are used on both sides of the cutting blade 1, the thickness (B) of the cutting blade is added to the thickness (A) of the grooved spacer, and the other grooved spacer is also (A) +
The thing of the thickness of (B) had to be used, and there was a limit in sandwiching the interval between the cutting blade and the coating stripping blade as a whole.

However, according to the present invention, since it is not necessary to use the grooved spacer on one surface of the cutting blade, the thickness of the guide portion (C) is added to the thickness of the cutting blade (B) +
A grooved spacer having a thickness of (C) may be used on the other surface of the cutting blade. It is obvious that the relationship of (C) <(A) can be established in the above.

Next, an operation example of the device of the present invention will be described. The cutting blade 1 and the coating stripping blade 3 are advanced from both sides of the lead wire 4 to be cut, and the core wire portion 5 is cut by the shearing action of the cutting blades 1 and 1. To do. Simultaneously with this, the coating stripping blades 3 and 3 located opposite to each other
The coating portion 6 is peeled off by the action of each other. The stripping slag is sandwiched between the cutting blade 1 and the coating stripping blade 3 and tries to retreat as it is, but on the way, it comes into contact with the slag stripping plate 2 in the fixed state and is pushed out to be removed outside the system.

[Effect of device]

The lead wire coating stripping device of the present invention has the above-described structure.
This makes it possible to reduce the lead wire strip size to an extremely shorter length (up to 1.25 mm). Therefore, it has become possible to provide a lead wire having an extremely short stripping margin that can meet the requirements of the field of electric components such as cameras and tape recorders.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a cutting blade, a scrubbing plate, and a coating stripping blade according to the device of the present invention, FIG. 2 is a front view when cutting a lead wire, and FIG. 3 is III-III of FIG. It is sectional drawing which followed the line. 1: Cutting blade, 2: Scrape plate, 3: Stripping blade, 4: Lead wire, 5: Core wire part, 6: Cover part, 7: Guide part, 8: Flat surface, 9: Recess, 10: Spacer with groove

Claims (1)

[Scope of utility model registration request] 1. A pair of cutting blades 1, 1 and a coating stripping blade 3, 3 which can move forward and backward so as to sandwich a lead wire 4 to be cut.
Are arranged opposite to each other, and at the same time the core wire portion 5 of the lead wire 4 is cut by the cutting blades 1 and 1, the coating stripping blades 3 and 3
In the lead wire coating stripping device for stripping the coating portion 6 of the lead wire 4 in the vicinity of the cutting portion, the scaffolding plate 2, which is fixed between the cutting blades 1, 1 and the coating stripping blades 3, 3. 2 is arranged, and the slag removing plate 2 in this fixed state is
The guide parts 7, 7 that can come into contact with the upper and lower ends of the cutting blade 2,
1. A lead wire coating stripping device, characterized in that it is formed near the upper and lower end portions of the flat surface 1 in the longitudinal direction.