Patent Description:
Generally, an electric wire collectively refers to a line used to send power or electric signals.

The electric wire is formed such that at least one metal wire is surrounded by an insulating member, and an outer insulating member is formed to surround the outside of the insulating member again. Here, metal foil for shielding EMI is formed between the insulating member surrounding the metal wire and the outer insulating member surrounding the outside of the insulating member.

In order to use the electric wire configured as such, after the outer insulating member and the metal foil are removed from the electric wire, the metal wire should be coupled to metal wire of another electric wire or should be connected to a power terminal of a power source.

Conventionally, since the outer insulating member and the metal foil are removed using the manpower of a worker, a working time increases and it is difficult to uniformly remove the outer insulating member and the metal foil.

<CIT> shows a device according to the preamble of claim <NUM> for stripping a sheathed coaxial cable which has transmission arrangement rotating a disc-shaped cutter, the disc-shaped cutter going round a coaxial cable while rotating.

<CIT> shows a device for stripping having a cutting member and two centralizers are disposed at a roughly equal angle along a circumferential direction of an outer periphery surface of a wire. A suction pipe opening is provided, adjacent to the cutting position of the cutting member, such that coating material which is cut by the cutting member is removed by being sucked into the suction pipe.

<CIT> shows a device for stripping sheathing from wire at controllable depth, the apparatus comprising a rotating spindle on the carriage and a structure including a blade or blades on the spindle and rotatable thereby to rotatably cut into the wire sheathing and a control on the spindle to control the depth of cutting of the blade or blades into the sheathing, as the spindle rotates, and a drive operatively connected with the carriage to carry the blade or blades to selected positions along the wire and at which the blade or blades then cut into the sheathing, to controlled depth, the carriage being retractable to pull a cut plug of the sheathing endwise off the wire.

<CIT> shows an automatic stripping device cutting an insulated coating, a shielding layer, and an insulating layer of an end part of a cable. The device comprises a processing part for stripping the cable and a cable transfer part which transfers the cable by being interlocked with the processing part. The processing part includes a cutting part, a first peeling part which exposes the insulating layer and the shielding layer, and a second peeling part which exposes a core line.

<CIT> shows a device for removing a screen from a cable including at least one conductor, screen, and outer insulation.

An aspect of the present disclosure provides a removal device of cable foil, in which an outer insulating member and foil of an electric wire are cut by a foil cutting unit and the cut foil is stripped by a foil stripping unit, thus reducing working time for removing the foil and enabling the outer insulating member and foil of the electric wire to be uniformly removed.

The removal device of cable foil according to claim <NUM> of includes a fixing member configured to fix an electric wire; a foil cutting unit disposed adjacent to the fixing member to cut foil of the electric wire fixed by the fixing member; and a foil stripping unit configured to strip the foil of the electric wire, which is cut by the foil cutting unit, from the electric wire.

The foil cutting unit includes a first rotating member rotatably disposed adjacent to the fixing member to be rotated by a connected first rotating shaft; a first rotation motor connected to the first rotating shaft to rotate the first rotating shaft; a pair of cutting blades slidably installed on the first rotating member so that the blades come into contact with or are released from the electric wire by a sliding movement; and a distance adjustment means configured to slide the cutting blades and thereby adjust a distance between the pair of cutting blades.

The foil stripping unit includes a second rotating member rotatably disposed inside the first rotating member to be rotated by a connected second rotating shaft; a second rotation motor connected to the second rotating shaft to rotate the second rotating shaft; and a stripping member installed on the second rotating member to come into contact with the outer surface of the electric wire.

The stripping member is rotatably installed on the second rotating member, and further includes a third rotating shaft connected to the stripping member; and a third rotation motor connected to the third rotating shaft to rotate the third rotating shaft.

The distance adjustment means may include a sliding member formed to surround the first rotating shaft, installed to slide along the first rotating shaft, and tapered on an outer surface thereof towards the first rotating member such that a diameter thereof is reduced towards the first rotating member; and a distance adjustment member installed on the first rotating member such that a central portion thereof is rotatable, installed such that a first side thereof is connected to each cutting blade, and installed such that a second side thereof is in contact with the tapered outer surface of the sliding member.

The removal device may further include a slide block installed to be connected to the sliding member; a slide driver connected to the slide block to slide the slide block; and a contact wheel rotatably installed on the second side of the distance adjustment member to come into contact with the tapered outer surface of the sliding member.

The second rotating member and the stripping member may be rotated in opposite directions.

As described above, the removal device of the cable foil according to the present disclosure may cut the outer insulating member and foil of the electric wire by the foil cutting unit and strip the cut foil by the foil stripping unit, thus reducing working time for removing the foil and enabling the outer insulating member and foil of the electric wire to be uniformly removed.

Specific structural or functional descriptions in the embodiments of the present disclosure disclosed in this specification or application are only for description of the embodiments of the present disclosure. Embodiments of the present disclosure may be implemented in various forms, and the descriptions should not be construed as being limited to the embodiments described in the specification or application.

Since the present disclosure may be embodied in many different forms, particular embodiments will be illustrated in the drawings and be described in detail herein. However, it is to be understood that the present description is not intended to limit the present disclosure to those exemplary embodiments, and the present disclosure is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments that fall within the spirit and scope of the present disclosure.

It will be understood that, although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For instance, a first element discussed below could be termed a second element without departing from the teachings of the present disclosure. Similarly, the second element could also be termed the first element.

It will be understood that when an element is referred to as being "coupled" or "connected" to another element, it can be directly coupled or connected to the other element or intervening elements may be present therebetween. In contrast, it should be understood that when an element is referred to as being "directly coupled" or "directly connected" to another element, there are no intervening elements present. Other expressions that explain the relationship between elements, such as "between", "directly between", "adjacent to" or "directly adjacent to" should be construed in the same way.

In the present disclosure, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprise", "include", "have", etc. when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, and/or combinations of them but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or combinations thereof.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs.

Hereinafter, a removal device of cable foil according to a preferred embodiment of the present disclosure will be described.

As shown in <FIG>, the removal device of the cable foil according to the present disclosure includes a fixing member <NUM> configured to fix an electric wire <NUM>, a foil cutting unit <NUM> which is disposed adjacent to the fixing member <NUM> to cut foil of the electric wire <NUM> fixed by the fixing member <NUM>, and a foil stripping unit <NUM> configured to strip the foil of the electric wire <NUM>, which is cut by the foil cutting unit <NUM>, from the electric wire <NUM>.

First, the fixing member <NUM> is a member formed in the shape of an approximately rectangular box, and is formed such that upper and lower portions thereof are separated from each other. The upper portion thereof is rotatably coupled to the lower portion in the form of a hinge. Here, a fixing hole having a diameter corresponding to that of the electric wire <NUM> is formed at a portion where the upper and lower portions of the fixing member <NUM> come into contact with each other. Thus, as the electric wire <NUM> is introduced into the fixing hole, the fixing member <NUM> fixes the electric wire <NUM>. An operation where the fixing member <NUM> fixes the electric wire <NUM> is as follows: after the upper portion of the fixing member <NUM> is rotated upwards, the electric wire <NUM> is positioned in the fixing hole formed in the lower portion of the fixing member <NUM> and then the upper portion of the fixing member <NUM> is rotated downwards, so the electric wire <NUM> is fixed to the fixing member <NUM>. In this case, a portion of the electric wire <NUM> from which the foil is to be stripped is fixed to be positioned on the foil cutting unit <NUM> and the foil stripping unit <NUM>.

Meanwhile, the foil cutting unit <NUM> includes a first rotating member <NUM> which is rotatably disposed adjacent to the fixing member <NUM> to be rotated by a connected first rotating shaft <NUM>, a first rotation motor <NUM> which is connected to the first rotating shaft <NUM> to rotate the first rotating shaft <NUM>, a pair of cutting blades <NUM> which are slidably installed on the first rotating member <NUM> so that the blades come into contact with or are released from the electric wire <NUM> by a sliding movement, and a distance adjustment means which slides the cutting blades <NUM> to adjust a distance between the pair of cutting blades <NUM>.

The first rotating member <NUM> is a rectangular structure in which a hollow portion is formed and which has a predetermined thickness, and is rotatably installed adjacent to the fixing member <NUM> such that a first side thereof faces the fixing member <NUM>. Here, a second side of the first rotating member <NUM> is connected to the first rotating shaft <NUM>, and the first rotating shaft <NUM> is connected to the first rotation motor <NUM>, so the first rotating member <NUM> is rotated by driving the first rotation motor <NUM>. In this regard, the first rotating shaft <NUM> and the first rotation motor <NUM> are installed to be connected to each other by a belt pulley. However, without being limited thereto, the first rotating shaft <NUM> and the first rotation motor <NUM> may be connected in a shaft coupling manner.

Furthermore, extension portions are provided on both sides of the first rotating member <NUM> to extend outwards from the first rotating member <NUM>, and a pair of cutting blades <NUM> is installed on each extension portion. The cutting blade <NUM> is formed of a plate-shaped metal having a predetermined thickness, and has on a first end thereof a cutting edge configured to cut an outer insulating member and the foil of the electric wire <NUM>. The cutting blade <NUM> is slidably installed on each extension portion of the first rotating member <NUM>. Thus, when a distance between the cutting blades <NUM> is narrow, the cutting edge of the cutting blade <NUM> comes into contact with the outer surface of the electric wire <NUM>. When a distance between the cutting blades <NUM> is wide, the cutting edge of the cutting blade <NUM> comes away from the outer surface of the electric wire <NUM>. If the first rotating member <NUM> is rotated in a state where the cutting edge of the cutting blade <NUM> configured as such comes into contact with the outer surface of the electric wire <NUM>, the cutting blade <NUM> is rotated along with the first rotating member <NUM>, thereby cutting the outer insulating member and the foil of the electric wire <NUM>.

Furthermore, the distance adjustment means includes a sliding member <NUM> which is formed to surround the first rotating shaft <NUM>, is installed to slide along the first rotating shaft <NUM>, and is tapered on an outer surface thereof towards the first rotating member <NUM> such that a diameter thereof is reduced towards the first rotating member <NUM>, a distance adjustment member <NUM> which is installed on the first rotating member <NUM> such that a central portion thereof is rotatable, is installed such that a first side thereof is connected to each cutting blade <NUM>, and is installed such that a second side thereof is in contact with the tapered outer surface of the sliding member <NUM>, a slide block <NUM> which is installed to be connected to the sliding member <NUM>, a slide driver <NUM> which is connected to the slide block <NUM> to slide the slide block <NUM>, and a contact wheel <NUM> which is rotatably installed on the second side of the distance adjustment member <NUM> to come into contact with the tapered outer surface of the sliding member <NUM>.

The sliding member <NUM> is a conical member in which a hollow portion is formed, and the first rotating shaft <NUM> is installed to be fitted into the hollow portion of the sliding member <NUM>. Here, the sliding member <NUM> is disposed such that a vertex thereof faces the first rotating member <NUM>. Thus, the outer surface thereof is tapered towards the first rotating member <NUM>. The slide block <NUM> is connected to the lower portion of the sliding member <NUM>, and the slide block <NUM> is connected to the slide driver <NUM>, so the slide block <NUM> slides by the driving of the slide driver <NUM>. Thereby, the sliding member <NUM> connected to the slide block <NUM> slides along the first rotating shaft <NUM>.

A pair of distance adjustment members <NUM> is provided, so the central portion of each distance adjustment member <NUM> is rotatably installed on each extension portion of the first rotating member <NUM>. Further, the first side of each distance adjustment member <NUM> is connected to each cutting blade <NUM>, and the second side thereof is installed to be in contact with the tapered outer surface of the sliding member <NUM>. Here, the contact wheel <NUM> which is rotatably installed on the second side of each distance adjustment member <NUM> is provided, so the contact wheel <NUM> comes into contact with the tapered outer surface of the sliding member <NUM>.

An operation of the distance adjustment means configured as such will be described with reference to <FIG>. The slide block <NUM> is slid by the operation of the slide driver <NUM>, and thus the sliding member <NUM> connected to the slide block <NUM> slides along the first rotating shaft <NUM>. If the slide driver <NUM> is operated to move the sliding member <NUM> to the left of <FIG>, the second side of the distance adjustment member <NUM> moves upwards along the outer surface of the sliding member <NUM> by the movement of the contact wheel <NUM>. Thereby, the first side of the distance adjustment member <NUM> is moved downwards, so the cutting blade <NUM> connected to the first side of the distance adjustment member <NUM> is moved downwards. This describes the distance adjustment member <NUM> and the cutting blade <NUM> located on the upper side of <FIG>, and the distance adjustment member <NUM> and the cutting blade <NUM> located on the lower side of <FIG> are moved in a direction opposite to that of the above description. As such, the cutting blade <NUM> is moved up and down by the distance adjustment means, thus adjusting the distance between the cutting blades <NUM>. By this operation, the cutting edge of the cutting blade <NUM> comes into contact with or is released from the outer surface of the electric wire <NUM>.

Meanwhile, the foil stripping unit <NUM> includes a second rotating member <NUM> which is rotatably disposed inside the first rotating member <NUM> to be rotated by a connected second rotating shaft <NUM>, a second rotation motor <NUM> which is connected to the second rotating shaft <NUM> to rotate the second rotating shaft <NUM>, a stripping member <NUM> which is rotatably installed on the second rotating member <NUM> to come into contact with the outer surface of the electric wire <NUM>, a third rotating shaft <NUM> which is connected to the stripping member <NUM>, and a third rotation motor <NUM> which is connected to the third rotating shaft <NUM> to rotate the third rotating shaft.

The second rotating member <NUM> is a circular plate of a predetermined diameter installed in the hollow portion of the first rotating member <NUM>, is disposed such that a first side thereof faces the fixing member <NUM>, and is connected at a second side thereof to the second rotating shaft <NUM> to be rotated by the driving of the second rotation motor <NUM> connected to the second rotating shaft <NUM>. In this case, the second rotating shaft <NUM> may be formed to have a diameter smaller than that of the first rotating shaft <NUM>, so the second rotating shaft may be installed in the first rotating shaft <NUM>. Here, the second rotating shaft <NUM> and the second rotation motor <NUM> are installed to be connected to each other by the belt pulley. However, without being limited thereto, the second rotating shaft <NUM> and the second rotation motor <NUM> may be connected in a shaft coupling manner.

The stripping member <NUM> is a cylindrical member having a predetermined diameter, and is rotatably installed on the first side of the second rotating member <NUM>. Here, the stripping member <NUM> is rotatably installed at an outer point which is distant from the center of the second rotating member <NUM> by a predetermined distance. This is for a side of the stripping member <NUM> to come into contact with the outer surface of the electric wire <NUM>. The side of the stripping member <NUM> may be formed in an uneven shape.

The stripping member <NUM> may be connected to the third rotating shaft <NUM>, and the third rotating shaft <NUM> may be connected to the third rotation motor <NUM>, so the stripping member <NUM> is rotated by the rotation of the third rotation motor <NUM>. Here, the stripping member <NUM> is rotated in a direction opposite to the rotating direction of the second rotating member <NUM>.

Hereinafter, an operation of the removal device of the cable foil according to the present disclosure will be described in detail with reference to <FIG>.

If the electric wire <NUM> from which the foil is to be removed is fixed by the fixing member <NUM>, the distance between the cutting blades <NUM> is reduced by the distance adjustment means, so the cutting edge of the cutting blade <NUM> comes into contact with the outer surface of the electric wire <NUM> (see <FIG>).

Subsequently, as shown in <FIG> and <FIG>, the first rotating member <NUM> is rotated in a direction shown by arrow A by the rotation of the first rotation motor <NUM>, and thereby the cutting blade <NUM> installed on the first rotating member <NUM> is rotated. If the cutting blade <NUM> is rotated as such, the outer surface of the electric wire <NUM> coming into contact with the cutting edge of the cutting blade <NUM> is cut.

If the outer surface of the electric wire <NUM>, i.e. the outer insulating member and the foil of the electric wire <NUM> are cut by the cutting blade <NUM> as such, the second rotating member <NUM> is rotated by the operation of the second rotation motor <NUM>. Here, the second rotating member <NUM> is rotated in a direction shown by arrow B which is a direction opposite to the rotating direction of the first rotating member <NUM>.

At the same time, the stripping member <NUM> is rotated in a direction shown by arrow C which is a direction opposite to the rotating direction of the second rotating member <NUM>, so a lateral uneven portion of the stripping member <NUM> comes into contact with the cut outer surface of the electric wire <NUM> and strikes the outer surface of the electric wire <NUM>.

As the later uneven portion of the stripping member <NUM> strikes the cut outer surface of the electric wire <NUM>, the cut outer insulating member and foil of the electric wire <NUM> are separated and removed from the electric wire <NUM>.

The removal device of cable foil according to the present disclosure configured and operated as described above is intended to cut the outer insulating member and foil of the electric wire <NUM> by the foil cutting unit <NUM> and strip the cut foil by the foil stripping unit <NUM>. Thus, it is very advantageously possible to reduce working time for removing the foil and to uniformly remove the outer insulating member and foil of the electric wire.

The removal device of the cable foil according to the preferred embodiment of the present disclosure has been described.

It should be understood that the above-described embodiment is illustrative and not restrictive, and the scope of the present disclosure is defined by the appended claims rather than by the description preceding them.

Claim 1:
A removal device of cable foil comprising:
a fixing member (<NUM>) configured to fix an electric wire (<NUM>);
a foil cutting unit (<NUM>) disposed adjacent to the fixing member (<NUM>) to cut foil of the electric wire (<NUM>) fixed by the fixing member (<NUM>); and
a foil stripping unit (<NUM>) configured to strip the foil of the electric wire (<NUM>), which is cut by the foil cutting unit (<NUM>), from the electric wire (<NUM>),
wherein
the foil cutting unit (<NUM>) comprises:
a first rotating member (<NUM>) rotatably disposed adjacent to the fixing member (<NUM> to be rotated by a connected first rotating shaft (<NUM>);
a first rotation motor (<NUM>) connected to the first rotating shaft (<NUM>) to rotate the first rotating shaft (<NUM>);
a pair of cutting blades (<NUM>) slidably installed on the first rotating member (<NUM>) so that the blades come into contact with or are released from the electric wire by a sliding movement; and
distance adjustment means configured to slide the cutting blades (<NUM>) and thereby adjust a distance between the pair of cutting blades (<NUM>),
characterised in that the foil stripping unit (<NUM>) comprises:
a second rotating member (<NUM>) rotatably disposed inside the first rotating member (<NUM>) to be rotated by a connected second rotating shaft (<NUM>);
a second rotation motor (<NUM>) connected to the second rotating shaft (<NUM>) to rotate the second rotating shaft (<NUM>); and
a stripping member (<NUM>) installed on the second rotating member (<NUM>) to come into contact with the outer surface of the electric wire (<NUM>),
wherein
the stripping member (<NUM>) is rotatably installed on the second rotating member (<NUM>), and further comprising:
a third rotating shaft (<NUM>) connected to the stripping member (<NUM>); and
a third rotation motor (<NUM>) connected to the third rotating shaft (<NUM>) to rotate the third rotating shaft (<NUM>).