JP2014180133A - Covering material separator and covering material separation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently and easily separate a conductor and a covering material of a covered conductor with a lightweight and compact instrument and to prevent the number of separated covering materials from being increased.SOLUTION: A covering material separator comprises: a pair of pressure contact rollers 32a and 32b in which an end portion of a covered conductor is inserted therebetween and the covered conductor is sent out while being press-contacted in a radial direction; a plurality of protrusions provided circumferentially at predetermined intervals on an outer surface of one of the pair of pressure contact rollers 32a and 32b, and holding a conductor and a covering material and breaking it; and a rotary instrument mounting part 33 in which an electrically-driven rotary machine tool is mounted to rotate one of the pair of pressure contact rollers 32a and 32b. Thus, when the covered conductor is passed between the pair of pressure contact rollers 32a and 32b, a covering material is broken by being held between the conductor and the protrusions and in the covering material, a plurality of through holes are formed which are provided continuously in a length direction of a separating line which extends in a length direction of the covered conductor, or in the length direction of the covered conductor.

Description

  TECHNICAL FIELD The present invention relates to a covering material separating tool and a covering material separating method, and more specifically, a covering material separating tool used for separating a conductor and a covering material from a covered electric wire in which the conductor is covered with the covering material, and The present invention relates to a covering material separating method for separating a conductor of a covered electric wire and a covering material.

  In indoor wiring and outdoor wiring of buildings such as houses, covered electric wires are usually used. Here, the covered electric wire is one in which one thick copper wire, a plurality of thin copper wires, or the like is used as a conductor, and the outer surface of the conductor is covered with a covering material such as vinyl resin or polyethylene resin.

  By the way, when wiring work is performed at a construction site or the like, a large amount of end material of the covered electric wire is generated. Further, in wiring work in which an existing wiring is replaced with a new one or an existing wiring pattern is changed, a large amount of covered electric wires that are no longer necessary are generated. The end material of such a covered electric wire and the covered electric wire that is no longer necessary can be reused, and when reusing, it is necessary to separate the conductor and the covering material. Then, in order to separate the conductor of the covered electric wire from the covering material, an operator generally cuts the covering material manually with a knife or the like, tears the covering material, and takes out the conductor from the inside of the covering material. ing.

  However, it is extremely inefficient and very troublesome to separate the conductor and the covering material by the manual operation of the operator in this way. On the other hand, for example, if an apparatus as disclosed in Patent Document 1 is used, the conductor of the coated conductor and the coating material can be easily and efficiently separated. Here, the apparatus disclosed in Patent Document 1 uses a pair of rolling rolls that are rolled by sandwiching a covered electric wire between them. The conductor is widened by the rolling roll, and the covering material is made outside by spreading the conductor. The coating material is extruded and broken so that the coating material is separated from the conductor, and the upper and lower portions of the coating material are broken corresponding to the upper and lower rolling rolls.

JP-A-6-150748

  In the apparatus disclosed in Patent Document 1, it is necessary to greatly deform the conductor. Therefore, the structure must be able to apply a great pressing force to the rolling roll. Further, the rolling roll must be supported so that it can withstand a large pressing force. Further, in order to rotate the rolling roll while applying a great pressing force to the covered electric wire, a high output motor is required as a motor for rotating the rolling roll. Therefore, with this apparatus, the entire apparatus becomes large and cannot be easily carried to a construction site or the like.

  On the other hand, if it is possible to efficiently and easily separate the conductor of the covered electric wire and the covering material with a lightweight and compact instrument that can be easily carried, an appropriate work site such as a construction site or a waste separation processing site can be used. It is convenient because it can be brought into a flexible case and the separation work of the covering material can be performed in a timely manner.

  The present invention has been made in view of the above circumstances, and it is an object of the invention of a covering material separating tool to efficiently and easily separate a conductor of a covered electric wire and a covering material with a lightweight and compact device. To do.

  By the way, in the apparatus disclosed in Patent Document 1, since the covering material is broken by the pair of rolling rolls, two places are broken in the circumferential direction of the covering material, and there are two covering materials separated from the conductor. When the covering material increases in this way, the bulk increases as the number of members increases, and the handling of the covering material after separation becomes troublesome. Further, when the covering material is separated from the long covered electric wire, two elongated covering materials are generated, so that the covering materials are easily entangled, and from this point, handling of the covering material after separation becomes troublesome.

  Therefore, a part of the invention of the covering material separating apparatus and the invention of the covering material separating method are to prevent the number of separated covering materials from increasing.

  The covering material separating tool according to claim 1 is for separating the conductor and the covering material from a covered electric wire in which a conductor is covered with a covering material, and ends of the covered electric wire are inserted between each other. A pair of pressure rollers that send out the coated electric wire while being pressed in the radial direction; and at least one outer surface of the pair of pressure rollers is provided at predetermined intervals in the circumferential direction, and the coating material is sandwiched between the conductors and fractured A plurality of convex portions, and a rotating device mounting portion on which a rotating device of either an electric rotating tool or a manual handle is mounted to rotate at least one of the pair of pressing rollers, and between the pair of pressing rollers When the covered electric wire is passed through, the covering material is broken by sandwiching the conductor and the convex portion, and a dividing line extending in the length direction of the covered electric wire, or the covered electric wire, In which a plurality of through holes provided continuously in the longitudinal direction are formed.

In the covering material separating tool according to claim 2, in particular, the height of the convex portion is set to be smaller than the thickness of the covering material, and the interval between the pair of press contact rollers is such that the convex portion sandwiches the coated electric wire. The covering material is set so as to be broken, and the covering material is crushed between the plurality of convex portions.
In the covering material separating tool according to claim 3, the covering material is crushed between a plurality of convex portions and extended in the radial direction.
In the covering material separating tool according to claim 4, the convex portions are provided on both of the pair of pressure rollers, and the dividing line over the entire length of the covering material is not formed by the convex portions of at least one pressure roller. is there.
In the covering material separating tool according to the fifth aspect, the convex portion is provided only on one of the pair of press contact rollers.
In the covering material separating tool according to claim 6, the rear end portion of the covered electric wire that has passed between the pair of pressure contact rollers is a cavity in which no conductor exists in the covering material, A parting line or a through hole is not formed.
In the covering material separating tool according to claim 7, the convex portion is constituted by a flat knurled eye or serration provided on the outer peripheral surface of the pressure contact roller.

The covering material separating tool according to claim 8 is for separating the conductor and the covering material from a covered electric wire in which a conductor is covered with a covering material, and ends of the covered electric wire are inserted between each other. A rotating tool on which a rotating tool of either a pair of pressing rollers that send out the coated electric wire while being pressed in a radial direction and an electric rotating tool or a manual handle to rotate at least one of the pair of pressing rollers is mounted. When the covered electric wire is passed between the pair of pressure contact rollers, the covering material is deformed so that the peripheral length thereof is increased by the pressing of the conductor and the pressure roller, and the conductor and the cover are covered. A gap is formed between the material and the conductor can be pulled out from the covering material.
In the covering material separating tool according to claim 9, one of the pair of pressure contact rollers is a driving roller that is rotationally driven, and the other is a driven roller that rotates following the passage of the covered electric wire, A rotating device mounting portion is provided on the rotating shaft of the driving roller.

The covering material separating method according to claim 10 is for separating the conductor and the covering material in a covered electric wire in which a conductor is covered with a covering material, and ends of the covered electric wire are inserted between each other, A pair of pressure rollers that send out the coated electric wire while being pressed in the radial direction; and a rotating device mounting portion on which either the electric rotating tool or the rotating tool of the manual handle is mounted to rotate at least one of the pair of pressure rollers. By using the covering material separating tool provided with, by operating the rotating device mounted on the rotating device mounting portion to pass the coated electric wire between the pair of pressure contact rollers,
(1) A dividing line that extends in the length direction of the covered electric wire and divides the covering material in the radial direction is formed only on one pressure roller side of the covering material, and a conductor is taken out from the dividing line.
(2) A plurality of through holes continuously provided along the length direction of the covered electric wire are formed on at least one pressure roller side of the covering material, and the diameter of the covering material is defined by using the plurality of through holes as perforations. Dividing in the direction, and taking out the conductor from the divided part,
(3) By deforming the covering material so that its peripheral length is increased by pressing the conductor and the pressure roller, a gap is formed between the conductor and the covering material, and the conductor can be pulled out from the covering material. Pull the conductor axially out of the coating,
Any one of the above (1) to (3).

  The covering material separating method according to claim 11, wherein the conductor and the covering material are separated in a covered electric wire whose conductor is covered with a covering material, and ends of the covered electric wire are inserted between each other, A pair of pressure rollers that send out the coated electric wire while being pressed in the radial direction; and a rotating device mounting portion on which either the electric rotating tool or the rotating tool of the manual handle is mounted to rotate at least one of the pair of pressure rollers. One of the pressure roller sides in the coating material is operated by operating the rotating device mounted on the rotating device mounting portion and passing the coated electric wire between the pair of pressure welding rollers. Forming a dividing line extending in the length direction of the covered electric wire and dividing the covering material in the radial direction, and continuously provided along the length direction of the covered electric wire on the other pressing roller side in the covering material Forming a plurality of through-holes, or extending and deforming the other pressure roller side of the covering material and using the other pressure roller side of the covering material as a hinge to widen the parting line part and conducting from the parting line part To take out.

  In the first to ninth aspects of the present invention, the rotational driving force for rotating the pressure roller is based on an electric rotary tool or a manual handle, and has a smaller power than a large motor. And it becomes possible to isolate | separate a conductor and a coating | covering material, without largely deforming a conductor with the press-contact roller rotated with such a small driving force. For this reason, the pressing roller does not require a large pressing force, and does not require a structure for applying a large pressing force to the pressing roller. Also, the support structure of the pressure roller need not be strong enough to withstand a large pressing force. Further, since the rotary power tool or the manual handle is attached and the pressure roller is driven to rotate, it is not necessary to assemble a driving device such as a motor in the instrument itself. Therefore, a lightweight and compact instrument can be realized as an instrument that can separate the conductor and the covering material.

  In particular, in the first to seventh aspects of the invention, the covering material is broken by the convex portion provided on the pressure roller, and a dividing line or a plurality of through holes are formed in the covering material in the length direction of the covered electric wire. is there. Here, if it is a parting line, the conductor may be taken out from the parting line and separated from the covering material. If it is a plurality of through holes, the covering material is divided using this as a perforation, and the conductor is separated from this parting portion. What is necessary is just to take out and isolate | separate from a coating | covering material. Therefore, the conductor and the covering material can be separated by a simple and simple operation, and the conductor and the covering material can be easily processed.

  In the invention of claim 2, since the convex portion is set so that the covering material can be broken by sandwiching the coated electric wire, the coated electric wire hardly slides against the pressure contact roller provided with the convex portion. Pass between well. Furthermore, since the height of the convex portion is smaller than the thickness of the covering material, the material of the covering material is pressed between the convex portions, and the through holes formed by the fracture of the convex portion are connected to form a dividing line. The covering material between adjacent through holes becomes thin. Therefore, it is possible to accurately form a plurality of through-holes that form parting lines or perforations that are easy to part.

  In the invention of claim 3, since the covering material is crushed between the plurality of convex portions and stretched in the radial direction, the material of the covering material is pressed between the convex portions to be formed by breaking the convex portions. The through-holes are connected to form a dividing line, or the covering material between adjacent through-holes is thinned. Therefore, it is possible to accurately form a plurality of through-holes that form parting lines or perforations that are easy to part.

  In the inventions according to claims 4 to 6, two or more portions are not divided over the entire length of the covering material around the entire circumference of the covering material, and the covering material separated from the conductor is connected in the lengthwise dividing line or in the length direction. Each part of the both sides of the plurality of through-holes provided is connected at either a part of the circumference or the rear end part and is not divided into two members. Therefore, the number of separated covering materials can be prevented from increasing.

  The invention of claim 7 specifically specifies the form of the convex part, and by forming the convex part from flat knurled eyes or serrations, the convex part has a dividing line or length in the longitudinal direction by the convex part. A plurality of through-holes connected in the vertical direction can be accurately formed.

  The invention of claim 8 does not take out the conductor from the dividing line of the covering material or the plurality of through holes, but allows a conductor to be pulled out from the covering material in the axial direction by forming a gap between the conductor and the covering material. Is. Therefore, the number of separated covering materials does not increase. Also, if the conductor is taken out from the dividing line of the covering material or from the plurality of through holes, the waste of the covering material generated in the dividing line part or the through hole part adheres to the conductor, and the purity when the conductor is reused is improved. Although there is a risk of lowering, by separating the conductor and the covering material by drawing in the axial direction, it becomes difficult for unnecessary deposits to adhere to the conductor.

  In the invention of claim 9, one of the pair of pressure rollers is a driven roller, and the other is a driving roller having a rotating shaft as a rotating device mounting portion, and the driving roller is driven by a rotational driving force from the rotating device. Only the structure is driven to rotate directly. Therefore, a drive transmission mechanism using gears or sprockets is not required, and the overall structure can be simplified.

  The invention of claims 10 and 11 is a method for separating a covering material, wherein the conductor and the covering material are separated by using the lightweight and compact covering material separating tool as described above. In the inventions of claims 10 and 11, two or more places are not divided over the entire length of the covering material around the entire circumference of the covering material, and the covering material separated from the conductor is separated in the longitudinal direction by Each part on both sides of the plurality of through-holes continuously provided in the vertical direction is connected at either a part of the circumference or the rear end part and is not divided into two members. Therefore, the number of separated covering materials can be prevented from increasing.

  In particular, in the invention of claim 11, the conductor is taken out from the dividing portion in the length direction of the covering material. In the entire circumference of the covering material, in the length direction of the covering material, on the side opposite to the dividing line. A plurality of through-holes are provided continuously, or a portion opposite to the parting line is thinned by extension deformation. Therefore, it is easy to widen the parting line by using the part opposite to the parting line as a hinge, and the conductor can be smoothly taken out from the widened parting line.

  As described above, according to the covering material separating tool of the present invention, it is possible to efficiently and easily separate the conductor of the covered electric wire and the covering material with a lightweight and compact instrument.

  In addition, according to the covering material separating tool according to some inventions and the covering material separating method according to the present invention, the number of separated covering materials can be prevented from increasing.

It is a 3rd page figure which shows an example of the coating | coated material separator which concerns on this invention, (a) is a top view, (b) is a left view, (c) is a front view. It is a perspective view of the front side of the covering material separation tool shown in FIG. It is a perspective view by the side of the back of the covering material separation tool shown in FIG. It is a perspective view of the front side of a functional unit. It is a perspective view of the back side of a functional unit. It is sectional drawing by the AA cutting line in FIG. It is sectional drawing by the BB cutting line in FIG. It is explanatory drawing which shows a pair of press-contact roller. It is explanatory drawing which shows the relationship between the convex part of a press-contact roller, and a covered electric wire, (a) is a front view, (b) is a side view. It is explanatory drawing which shows the state of the coating | covering material which passed between a pair of press-contact rollers. It is explanatory drawing which shows the state which isolate | separates the conductor and coating | covering material of a covered electric wire. It is explanatory drawing which shows the state which isolate | separates the conductor and coating | covering material of a covered electric wire. It is explanatory drawing which shows the state in which the material of a coating | covering material flows because a covered electric wire passes between press-contact rollers. It is explanatory drawing which shows the state which a covered electric wire passes between press-contact rollers, and carries out a curve deformation.

  An example as an embodiment of the covering material separating tool and the covering material separating method according to the present invention will be described below.

  As shown in FIGS. 1 to 5, the covering material separating tool 10 is used for separating the conductor 2 and the covering material 3 of the covered electric wire 1, and is formed in a box shape as a whole. 21 and the rotating device mounting portion 33 protruding from the side surface are compact with a width of 90 mm, a depth of 120 mm, and a height of about 100 mm. Further, although the frame 20, side plate 31, press rollers 32a and 32b, etc., which will be described in detail later, are firmly formed of metal, the overall weight is about 1 kg, and the weight is light. With such a lightweight and compact covering material separating tool 10, it is desirable to separate the conductor 2 and the covering material 3 from the covered electric wire 1 at the construction site where the wiring work is performed, the separation processing site of the covered electric wire 1 or the like. It can be easily carried to the place and used.

  The covering material separating tool 10 includes a frame 20 formed by bending a steel plate, and a functional unit 30 (see FIGS. 4 and 5) assembled inside the frame 20. End parts of the covered electric wire 1 are inserted between each other, and functional parts such as a pair of press rollers 32a and 32b that feed the inserted covered electric wire 1 while being pressed in the radial direction are incorporated. Further, a flange portion 21 extending in the front-rear direction is provided at the lower portion of the frame 20, and the covering material separating tool 10 is attached to a work table or the like by sandwiching the flange portion 21 with a sandwiching tool such as a giant shrimp. It can be firmly fixed to a table or the like. Further, the flange portion 21 is provided with a through hole 22 having an appropriate size having a large diameter or a small diameter. A wood screw, a bolt, or the like is inserted into the through hole 22 and the work table or the table is also formed by the wood screw, the bolt, or the like. Etc. can be firmly fixed to, etc.

  The functional unit 30 is formed by bending a steel plate and has a pair of left and right side plates 31 constituting the side surface of the functional unit 30, and a pair of upper and lower pressure rollers 32 a and 32 b have bearings 34 on the side plate 31. It is assembled so that it can rotate freely. The pair of upper and lower pressure rollers 32a and 32b are integrally formed including a rotating shaft by cutting a steel material.

  The lower pressure contact roller 32 a is a drive roller that rotates by the input of a driving force, and the upper pressure contact roller 32 b is a driven roller that rotates following the delivery of the covered electric wire 1. A rotary instrument in which a rotary instrument (not shown) such as an electric drill, an electric screwdriver, an electric wrench, or a hand-held electric rotary tool or a manual handle is attached to the rotary shaft of the lower pressure roller 32a that is a driving roller. A mounting portion 33 is provided. Specifically, one of both ends of the rotation shaft of the pressure roller 32a protrudes from the side plate 31, and this protruding portion has a hexagonal column shape so that it can be chucked on the chuck of the electric rotary tool. In addition, what is necessary is just to mount | wear the rotating instrument mounting part 33 with the manual handle in which the hexagonal hole was provided in the rotation center part when mounting | wearing a manual handle.

  In addition to the pressure rollers 32a and 32b, the functional unit 30 is assembled with a cutter 35 as shown in FIGS. As shown in FIG. 7, the cutter 35 is formed from a sheathed electric wire 7 in which a plurality of covered electric wires 1 are collectively covered with a sheath 8 such as two covered electric wires 1 or three covered electric wires 1. This is for separating one covered electric wire 1 and for cutting the sheath 8 of the sheath electric wire 7. For the operation of cutting the sheath 8 of the sheathed electric wire 7, the sheathed electric wire 7 is inserted from the sheath electric wire insertion port 23 of the frame 20, the portion of the sheath 8 to be cut is applied to the cutter 35, the sheathed electric wire 7 is pushed in, and the cutter 35 is directly processed. The sheathed electric wire 7 may be continuously pushed in, or the sheathed electric wire 7 coming out from the opening 24 provided in the frame 20 behind the cutter 35 may be pulled.

  Here, in this example, the sheath wire insertion port 23 shown in FIGS. 2 and 7 is similar to the cross-sectional shape of the sheath wire 7 (hereinafter referred to as “three-wire sheath wire”) in which the three covered wires 1 are combined. It is a slightly long (about 1 to 2 mm) long oblong hole shape, and the three-wire sheathed electric wire 7 can be positioned well toward the cutter 35. Further, the cutter 35 is arranged so as to be biased to a position where the sheath 8 is cut with respect to the center of the sheath electric wire insertion port 23 so as to separate the three covered electric wires 1 inside into one and two. . Therefore, when it is desired to cut the sheath 8 of the two-wire sheathed electric wire 7 in which the two covered electric wires 1 are combined, the two-wire sheathed electric wire 7 is aligned with the side where the cutter 35 is biased in the sheath electric wire insertion port 23. The sheath 8 can also be cut so as to separate the two covered electric wires 1.

  As shown in FIG. 3, the side plate 31 of the functional unit 30 is provided with a tool insertion hole 37 into which a tool such as a screwdriver can be inserted. If the above-described cutter 35 becomes dull, insert a tool into the functional block 30 through the tool insertion hole 37, operate the cutter mounting screw 36 for attaching the cutter 35, and replace the cutter 35 with a new one. That's fine.

  In addition to the cutter 35 described above, various functional parts such as a functional part that functions as a wire stripper that peels off the covering material 3 at the end of the covered electric wire 1 can also be incorporated into the functional unit 30. Here, when it is difficult to insert the end portion of the covered electric wire 1 between the pair of press contact rollers 32a and 32b, it is conceivable that the covering member 3 at the end portion of the covered electric wire 1 is peeled off to facilitate the insertion. Therefore, it is preferable to incorporate a functional component that functions as a wire stripper.

  Next, the details of the pressure rollers 32a and 32b will be described below together with a separation method for separating the covering material 3 from the conductor 2 of the covered electric wire 1.

The covering material separating tool 10 of the present example has a simple structure in which the distance between the pair of upper and lower pressure contact rollers 32a and 32b is fixed, but as shown in FIG. The pressure roller 32b is formed in a step shape having different diameters, and can cope with a plurality of types of covered electric wires 1 having different diameters. Specifically, the lower pressure roller 32a, which is a driving roller, has a uniform diameter A of 20 mm, but the upper pressure roller 32b, which is a driven roller, has a diameter B1 of 20 mm and a diameter B2 of 19.2 mm. , The diameter B3 is a step of three steps of 18.2 mm, the distance between the upper and lower pressure rollers 32a and 32b is 1.3mm, the distance C2 is 1.7mm, the distance C3 is 2.2mm Thus, it can cope with three types of covered electric wires 1. That is, as shown in FIG. 9, when the diameter D of the conductor 2 and the thickness E of the covering material 3 are given,
(1) Covered electric wire 1 having a diameter D1 = 1.6 mm and a thickness E1 = 0.8 mm
(2) Covered electric wire 1 having a diameter D2 = 2.0 mm and a thickness E2 = 0.8 mm
(3) Covered electric wire 1 having a diameter D3 = 2.6 mm and a thickness E3 = 1.0 mm
3 types of covered electric wires 1 can be handled.

  When one of the pair of pressure rollers 32a and 32b does not have a uniform diameter, as described above, the pressure roller 32a serving as a driving roller has a uniform diameter, and the pressure roller 32b serving as a driven roller, as described above. It is preferable that the diameter differs depending on the part. This is because the drive roller is more easily worn than the driven roller, and when the worn pressure contact rollers 32a and 32b are replaced, those having a uniform diameter are cheaper and the running cost can be kept low. .

  Moreover, as shown in FIG. 9, the convex part 38 comprised by the flat knurled eye is provided in the outer peripheral surface of each upper and lower press-contact roller 32a, 32b. The convex part 38 constituted by flat knurled eyes is a large number of linear convex parts 38 connected in parallel to the circumferential surface direction of the pressure rollers 32a and 32b, and the cross section is a convex part 38 having a mountain shape. Yes. Note that not only flat knurled but also serrated serrations form a large number of linearly connected convex portions 38 having a cross-section in a cross-section in the circumferential direction of the pressure rollers 32a and 32b. can do.

  As shown in FIG. 9, the height of the convex portion 38 (in other words, “groove depth”) is about 0.4 mm for the lower pressure roller 32 a and 0.4 mm for the lower pressure roller 32 a. The height F2 is 0.6 mm, and the height of the convex portion 38 is set to be different in each pressure roller 32a, 32b. In particular, in this example, the height of the convex portion 38 of the lower pressure roller 32a that is the driving roller is set to be smaller than the height of the convex portion 38 of the upper pressure roller 32b that is the driven roller. .

  By the way, as described above, three types of intervals between the pair of pressure rollers 32a and 32b are set, and the interval C1 (1.3 mm) corresponds to the covered electric wire 1 in which the conductor 2 has a diameter D1 (1.6 mm). The distance C2 (1.7 mm) corresponds to the covered electric wire 1 with the conductor 2 having the diameter D2 (2.0 mm), and the distance C3 (2.2 mm) is the covered electric wire with the conductor 2 having the diameter D3 (2.6 mm). Corresponding to 1. Thus, the space | interval of the press-contact rollers 32a and 32b is narrower than the conductor 2 of the corresponding covered electric wire 1. FIG. Further, the pressing roller 32a, 32b is provided with the convex portion 38 as described above. For this reason, when the pressing rollers 32a and 32b are rotated, the convex portion 38 of at least one of the upper and lower pressing rollers 32a and 32b slightly bites into the conductor 2 of the covered electric wire 1, or the surface of the conductor 2 is scratched. The coated electric wire 1 is not easily slipped against the rotating pressure rollers 32a and 32b, and the coated electric wire 1 is sent out well with the rotation of the pressure rollers 32a and 32b. The distance between the pair of press rollers 32a and 32b is, as needed, the covering material 3 by sandwiching the covered electric wire 1 by, for example, the convex portion 38 slightly biting into the conductor 2 or being pressed to the surface of the conductor 2 so as to be scratched. It is only necessary to be set so that can be broken.

  Further, when the covered electric wire 1 passes between the press rollers 32a and 32b, the covering member 3 is penetrated in the thickness direction of the cover material 3 by the convex portion 38 of at least one of the upper and lower press rollers 32a and 32b. Through-holes 4 are formed, and as shown in FIG. 10A, the through-holes 4 are continuously provided with a plurality of through-holes 4 in the length direction of the covered electric wire 1. Here, since the convex portion 38 is linear, the shape of the through hole 4 is a horizontally long shape that is long in the width direction of the covered electric wire 1.

  Further, the height of the convex portion 38 is set to be smaller than the thickness of the covering material 3 of the covered electric wire 1 in both the convex portion 38 of the lower pressing roller 32a and the convex portion 38 of the upper pressing roller 32b. Therefore, between the adjacent convex portions 38 and the convex portions 38, the covering material 3 is sandwiched between the pressure rollers 32a and 32b and the conductor 2 and crushed, so that the covering material 3 expands in the radial direction. Deform. For this reason, when the covered electric wire 1 passes between the pair of press rollers 32a and 32b, the covering material 3 is provided with a plurality of through holes 4 as described above, or adjacent through holes 4 are connected. As shown in FIG. 10 (b), the dividing line 5 extends in the length direction of the covered electric wire 1. The dividing line 5 divides the coated electric wire 1 in the radial direction. As shown in FIG. 11, the covering material 3 is peeled away from the conductor 2 on the side opposite to the dividing line 5. The conductor 2 can be taken out in the radial direction through the dividing line 5. Further, even if the complete dividing line 5 over the entire length of the covering material 3 is not formed, the through-hole 4 provided in the length direction of the covering material 3 becomes a perforation, and the covering material is formed along the perforation. 3 is easy to divide. Therefore, even if the dividing line 5 is not completely formed, as shown in FIG. 11, the conductor 2 can be taken out from the covering material 3 while dividing the covering material 3 along the perforations by the through holes 4.

  Furthermore, if the space | interval of the convex part 38 is expanded, it will become difficult to be crushed between the convex parts 38, and the part between a more rigid joint, ie, several through-holes, can be formed.

  Here, regarding the relationship between the speed at which the coated electric wire 1 is fed and the breaking state of the covering material 3, the rotating device such as an electric rotary tool or a manual handle is operated to speed up the rotation of the roller and to feed the coated electric wire 1 quickly. Then, since the crushing time applied to the covering material 3 is short, the crushed covering material 3 is discharged in a state in which the space between the convex portions 38 is not easily broken by its own restoring force. On the contrary, when the coated wire 1 is slowly fed by slowing the rotation of the roller by operating the rotating device, the crushing time is long, so that the covering material 3 crushed between the convex portions 38 is broken and separated. The disconnection 5 is easily formed. On the other hand, in the present embodiment, since a rotary instrument such as an electric rotary tool or a manual handle is used for rotational driving, it is easy to control the speed of the rotational operation. Therefore, in the separation work of the covering material 3, the covering material 3 is fractured suitable for the separation process by appropriately adjusting the rotation speed in accordance with the situation of the covered electric wire 1 to be processed, for example, the slipperiness or material of the surface. You can also get the state.

  Next, in the covering material separating tool 10 of this example, convex portions 38 are provided on both of the pair of upper and lower press rollers 32a and 32b. For this reason, the through-hole 4 and the parting line 5 are formed in two places on the upper and lower sides of the covering material 3, or the recessed part which does not penetrate the covering material 3 completely is formed in one of the upper and lower sides of the covering material 3 depending on the case. Or a thin portion is formed by pressing the pressure rollers 32a and 32b. Therefore, when the dividing line 5 is opened on one of the upper and lower sides of the covering material 3 or the perforation formed by the through hole 4 is divided to open the divided part, the other through hole 4, the recess or the thin wall The part is easily deformed and functions as a hinge. As a result, the parting line 5 and the parting part can be opened satisfactorily.

  Here, the height of the convex portion 38 of the lower pressure roller 32a that is the driving roller is set to be smaller than the height of the convex portion 38 of the upper pressure roller 32b that is the driven roller. Since the covering material 3 is greatly crushed between the convex portions 38 of 32a, the dividing line 5 connected to the through hole 4 is easily formed on the lower side of the covering material 3 corresponding to the lower pressure roller 32a. Yes.

  Moreover, about the space | interval of the convex part 38 of each roller, even if the height of the convex part 38 of each roller is the same, if a space | interval is narrow, it will be easy to be crushed between the convex parts 38, and the dividing line 5 will be easy to form, When the plurality of through-holes 4 are continuously formed, the seam thickness is thinner than the opposite side and easy to break, and conversely, if the interval is wide, the gap between the convex portions 38 is formed. A perforation is formed which has a strong joint and is not easily broken.

  In addition, since the covered wire 1 is deformed so that the covering material 3 extends in the radial direction and the peripheral length extends by passing between the press rollers 32a and 32b, as shown in FIG. A gap is formed between the material 3 and the conductor 2. Therefore, the conductor 2 can be pulled out from the covering material 3, and as shown in FIG. 12B, the conductor 2 and the covering material 3 can be separated by pulling out the conductor 2 from the covering material 3 in the axial direction. .

  Thus, the coating | covering material 3 isolate | separated from the conductor 2 is not divided into two separate members, but remains one member. Therefore, the number as the coating | covering material 3 does not increase, and the handling of the coating | covering material 3 after isolation | separation does not become complicated.

  By the way, the dividing line 5 may arise in both the upper and lower parts of the coating | covering material 3 by the shape and magnitude | size of the convex part 38 of the upper and lower press-contact rollers 32a and 32b. Here, if the dividing line 5 and the independent through-hole 4 are mixed in at least one of the upper and lower sides, the covering material 3 will not completely become two members. When the dividing line 5 extending in the length direction of the covering material 3 is formed on both sides, the covering material 3 separated from the conductor 2 is completely separated into two members. However, since the covering material separating tool 10 of the present example is one in which the covering material 3 is pressed and deformed by the pressure rollers 32a and 32b, as shown in FIG. 13 (a), it is just before being pressed by the pressure rollers 32a and 32b. The material of the covering material 3 flows in the portion. Therefore, when the covered electric wire 1 passes completely between the pressure rollers 32a and 32b over the entire length, the conductor 2 is placed inside the covering material 3 at the rear end portion of the covered electric wire 1 as shown in FIG. Cavity 6 is formed in which no is present. And in this hollow part 6, since the conductor 2 does not exist, the covering material 3 is not sandwiched and pressed between the pressure rollers 32a and 32b and the conductor 2, and the dividing line 5 is not formed in the first place. The through hole 4 is not formed. Therefore, even if the covering material 3 is separated from the conductor 2, the covering material 3 remains as one member connected at the rear end portion. Therefore, even if the dividing lines 5 are formed at two locations above and below the covering material 3, the covering material 3 is not completely divided into two members, and the handling of the covering material 3 after separation is complicated. Absent.

  In the covering material separating tool 10 of this example, one of the pair of pressure rollers 32a and 32b is a driving roller and the other is a driven roller. Therefore, when the pressure contact roller 32a that is the driving roller is rotated and the covered electric wire 1 is sent out, a delay occurs in the upper pressure contact roller 32b that is the driven roller, and as shown in FIG. It curves to the upper pressure roller 32b side which is a driven roller. Thus, when the covered electric wire 1 is curved, it may be difficult to separate the conductor 2 and the covering material 3. In addition, the covered electric wire 1 and the conductor 2 that are curved or spiraled are more complicated to handle than those that are linear. Therefore, in this example, as shown in FIG. 3, the upper side pressure roller 32 b that is the driven roller is directed from the upper side pressure roller 32 b that is the driven roller toward the lower pressure roller 32 a that is the driving roller, above the portion on the discharge side of the covered wire 1 in the frame 20. Further, a correction plate 25 inclined downward is provided. The straightening plate 25 is formed by bending a steel plate and has higher rigidity than the conductor 2. By providing such a correction plate 25, it is possible to straighten the covered electric wire 1 that has been curved and deformed by passing between the pressure rollers 32a and 32b.

  Moreover, in the covering separator 10 of this example, as shown in FIG. 2, the insertion openings 26 a, 26 b, 26 c of the covered electric wire 1 are provided in the frame 20. The insertion ports 26a, 26b, and 26c are for positioning the tip of the covered electric wire 1 at a desired position between the pressure rollers 32a and 32b, and the inner diameters thereof differ depending on the thickness of the covered electric wire 1. A plurality of types, specifically, three types of insertion ports 26a, 26b, and 26c are set. In this example, a plurality of insertion ports 26b corresponding to the small-diameter covered wires 1 and a plurality of insertion ports 26c corresponding to the intermediate-diameter covered wires 1 are provided so that a plurality of small-diameter and intermediate-diameter covered wires 1 can be processed simultaneously. . Specifically, the single insertion port 26a for the large-diameter covered electric wire 1 is one, whereas the three insertion ports 26c for the small-diameter covered electric wire 1 have an intermediate diameter between the large diameter and the small diameter. Two insertion openings 26 b are provided for the covered electric wire 1. Also, each insertion opening 26a, 26b, 26c has a horizontally long oblong shape whose height is slightly larger (0.5 to 1 mm) than that of the covered electric wire 1 having a circular cross section, and is bent or bent in some places. Even with the covered electric wire 1, the covered electric wire 1 can smoothly enter the insertion ports 26 a, 26 b, and 26 c sequentially as the press rollers 32 a and 32 b rotate.

  By the way, when the rotary instrument is mounted on the rotary instrument mounting portion 33 and the distal end of the covered electric wire 1 is inserted into the insertion holes 26a, 26b, and 26c while operating the rotary instrument, the insertion ports 26a, 26b, and 26c are accurately positioned. Therefore, it is difficult to visually insert the covered electric wire 1 into the insertion ports 26a, 26b, and 26c. Therefore, in this example, a guide plate 27 for guiding the tip of the covered electric wire 1 is provided on the frame 20 below the insertion openings 26a, 26b, and 26c. The guide plate 27 is formed by bending a steel plate, and has a plurality of types of guide grooves 28 having different depths and widths corresponding to the plurality of types of covered electric wires 1. By aligning the tip of the covered electric wire 1 along the guide groove 28 of the guide plate 27, the tip of the covered electric wire 1 can be smoothly inserted into the insertion ports 26a, 26b, and 26c.

  In the covering material separating tool of the present embodiment configured as described above, the rotational driving force for rotating the pressure contact roller is due to the electric rotary tool or the manual handle, and the power is smaller than that of a large motor. Then, it is possible to separate the conductor 2 and the covering material 3 without greatly deforming the conductor 2 by the press rollers 32a and 32b rotating with such a small driving force. For this reason, the pressing rollers 32a and 32b do not require a large pressing force, and do not require a structure for applying a large pressing force to the pressing rollers 32a and 32b. Also, the support structure of the pressure rollers 32a and 32b does not have to be solid enough to withstand a large pressing force. Further, since the rotary power tool or the manual handle is attached and the pressure rollers 32a and 32b are rotationally driven, it is not necessary to assemble a driving device such as a motor in the instrument itself. Therefore, a lightweight and compact device can be realized as a device that can separate the conductor 2 and the covering material 3.

  Further, the covering material 3 is broken by the convex portions provided on the pressure rollers 32 a and 32 b, and the dividing line 5 or the plurality of through holes 4 are formed in the covering material 3 in the length direction of the covered electric wire 1. Here, if it is a parting line 5, the conductor may be taken out from the parting line 5 and separated from the covering material 3. If it is a plurality of through holes 4, the covering material 3 is divided using this as a perforation. What is necessary is just to take out the conductor 2 from a parting part, and to isolate | separate with the coating | covering material 3. FIG. Therefore, the conductor 2 and the covering material 3 can be separated by a simple and simple operation, and the conductor 2 and the covering material 3 can be easily processed.

  As mentioned above, although an example of the covering material separating tool 10 and the covering material separating method according to the present invention has been shown, the present invention is not limited to the above examples.

  For example, the convex portion 38 is not limited to being provided on both the pair of pressure rollers 32a and 32b, and the convex portion 38 may be provided only on one side. Or it is good also as a thing of the flat outer surface shape without the convex part 38 for both the press-contact rollers 32a and 32b. In this case, the dividing line 5 and the through-hole 4 are not formed in the covering material 3, but the covering material 3 can be extended in the radial direction as shown in FIG. Can be pulled out in the axial direction, and the conductor 2 and the covering material 3 can be separated by pulling out the conductor 2 from the covering material 3.

  Further, the height of the convex portion 38 of the pressure rollers 32a and 32b and the distance between the pair of pressure rollers 32a and 32b are not limited to the above-described dimensions.

  Furthermore, although the height of the convex part 38 of the said embodiment is set smaller than the thickness of the coating | covering material 3, it is not restricted to this, The height of the convex part 38 is more than the thickness of the coating | coated material 3. It is good also as what does not crush covering material 3 between convex parts 38, and in that case, a perforation which is hard to break compared with the case where a joint is not crushed and is crushed is made. Of course, since it is a perforation, the conductor 2 can be taken out easily by dividing it by hand or by spreading it with the conductor 2.

  In short, by changing the setting of the interval between the convex portions 38 and the height of the convex portions 38, it is easy to form the dividing line 5, to easily form a plurality of through holes 4 that are easily broken, or to strengthen the joints. And make it difficult to divide.

  Furthermore, the convex portions 38 provided on the pressure rollers 32a and 32b are not limited to flat knurled eyes or serrations, and may be formed by knurled eyes. Furthermore, not only the parallel line-shaped convex portions 38 are continuously provided in the circumferential direction of the pressure rollers 32a and 32b by knurling eyes or serrations, but an appropriate shape such as a circle or a rectangle is formed in the circumferential direction of the pressure rollers 32a and 32b. The independent convex portions 38 may be arranged in a lattice or zigzag manner.

DESCRIPTION OF SYMBOLS 1 Covered electric wire 25 Straightening plate 2 Conductor 26a, 26b, 26c Insertion hole 3 Covering material 27 Guide plate 4 Through-hole 28 Guide groove 5 Broken line 30 Functional unit 6 Cavity part 31 Side plate frame 7 Sheath electric wire 32a, 32b Pressure contact roller 8 Sheath 33 Rotating implement mounting part 10 Coating material separating tool 34 Bearing 20 Frame 35 Cutter 21 Flange part 36 Cutter mounting screw 22 Through hole 37 Tool insertion hole 23 Sheath wire insertion port 38 Convex part 24 Opening part

Claims (11)

A covering material separating tool for separating the conductor and the covering material from a covered electric wire in which the conductor is covered with a covering material,
A pair of press-contact rollers that are inserted between the ends of the covered electric wire and send out the coated electric wire while being pressed in the radial direction; and
A plurality of convex portions that are provided at predetermined intervals in the circumferential direction on at least one outer surface of the pair of pressure contact rollers, and sandwich and break the covering material with the conductor;
A rotating implement mounting portion to which any of the electric rotating tool and the manual handle is mounted to rotate at least one of the pair of press contact rollers;
When the covered electric wire is passed between the pair of pressure rollers, the covering material is broken by sandwiching the conductor and the convex portion, and the covering material is extended in the length direction of the covered electric wire. A covering material separating tool, wherein a plurality of through-holes connected in the length direction of the covered electric wire are formed.   The height of the convex portion is set to be smaller than the thickness of the covering material, and the interval between the pair of pressure contact rollers is set so that the convex portion can sandwich the covered electric wire and break the covering material. The covering material separating tool according to claim 1, wherein the covering material is crushed between the plurality of convex portions.   The said covering material is crushed between these convex parts, and is extended | stretched to radial direction, The covering material separator of Claim 1 or Claim 2 characterized by the above-mentioned.   The said convex part is provided in both of said pair of press-contact rollers, The said parting line over the full length of the said coating | covering material is not formed by the convex part of at least one press-contact roller. The covering material separating tool according to claim 3.   The said convex part is provided only in one side of the said pair of press-contact roller, The coating | covering material separator in any one of Claim 1 to 3 characterized by the above-mentioned.   The rear end portion of the covered electric wire that has passed between the pair of pressure contact rollers is a cavity in which no conductor exists in the covering material, and the rear end portion of the covering material includes the dividing line or the The covering material separating tool according to any one of claims 1 to 5, wherein a through hole is not formed.   The said convex part is comprised by the flat knurled eyes or serration which were given to the outer peripheral surface of the said press-contact roller, The coating | coated material separator in any one of Claim 1-6 characterized by the above-mentioned. A covering material separating tool for separating the conductor and the covering material from a covered electric wire in which the conductor is covered with a covering material,
A pair of press-contact rollers that are inserted between the ends of the covered electric wire and send out the coated electric wire while being pressed in the radial direction; and
A rotating implement mounting portion on which either the electric rotary tool or the manual handle is mounted to rotate at least one of the pair of press contact rollers;
When the covered electric wire is passed between the pair of pressure contact rollers, the covering material is deformed so that the circumference thereof becomes longer due to the pressing of the conductor and the pressure contact roller, and between the conductor and the covering material. The covering material separating tool is characterized in that a gap is formed in the covering material and the conductor can be pulled out from the covering material.   One of the pair of pressure rollers is a driving roller that is rotationally driven, and the other is a driven roller that rotates following the passage of the covered electric wire, and the rotation of the rotational axis of the driving roller The instrument mounting part is provided, The coating | covering material separator in any one of Claim 1-8 characterized by the above-mentioned. A covering material separating method for separating the conductor and the covering material in a covered electric wire in which a conductor is covered with a covering material,
An end portion of the covered wire is inserted between the pair of pressure contact rollers that send out the wire while pressing the covered wire in a radial direction, and an electric rotary tool and a manual handle for rotating at least one of the pair of pressure contact rollers. Using a covering material separating tool provided with a rotating device mounting portion on which any rotating device is mounted,
By operating the rotating device mounted on the rotating device mounting portion and passing the covered electric wire between the pair of pressure contact rollers,
(1) A dividing line that extends in the length direction of the coated electric wire and divides the covering material in a radial direction is formed only on one pressure roller side of the covering material, and the conductor is separated from the dividing line. Take out,
(2) Forming a plurality of through holes continuously provided along the length direction of the covered electric wire on at least the one pressure roller side of the covering material, and using the plurality of through holes as perforations, the covering The material is divided in the radial direction, and the conductor is taken out from the divided portion.
(3) The covering material is deformed so as to have a long circumferential length by pressing the conductor and the pressure roller, a gap is formed between the conductor and the covering material, and the conductor is removed from the covering material. Pulling out the conductor in the axial direction from the covering material,
The coating material separation method according to any one of (1) to (3) above. A covering material separating method for separating the conductor and the covering material in a covered electric wire in which a conductor is covered with a covering material,
An end portion of the covered wire is inserted between the pair of pressure contact rollers that send out the wire while pressing the covered wire in a radial direction, and an electric rotary tool and a manual handle for rotating at least one of the pair of pressure contact rollers. Using a covering material separating tool provided with a rotating device mounting portion on which any rotating device is mounted,
By operating the rotating device mounted on the rotating device mounting portion and passing the covered electric wire between the pair of pressure contact rollers,
On one of the pressure contact rollers side in the covering material, a dividing line that extends in the length direction of the covered electric wire and divides the covering material in a radial direction is formed,
A plurality of through-holes continuously formed along the length direction of the covered electric wire are formed on the other pressure roller side of the covering material, or the other pressure roller side of the covering material is extended and deformed. ,
A method for separating a covering material, comprising: extending the parting line portion by using the other pressure roller side of the covering material as a hinge and taking out the conductor from the parting line portion.

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