JP2012034555A - Covered wire separating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a covered wire separating apparatus capable of separating covered wires including thin to thick single lines having an external covering diameter of about 3.2 mm (e.g., an external covering material diameter of about 20 mm), stranded wires covered with PE, and cables.SOLUTION: A covered wire separating apparatus 100 includes: a pair of opposing rotary blades 10, 10 for making a cut in a covered layer 90 of a covered wire 150; and a pair of covered wire transporting means (projecting discs) 2, 2 which oppose each other and which transport the covered wire 150 in a predetermined direction while holding it with pointed projections 3. The covered wire transporting means 2, 2 are provided on two side surfaces of the rotary blades 10, 10. The pointed projections 3, which become pointed from bottom to top are provided on peripheral portions of the discs at predetermined intervals.

Description

  The present invention relates to an apparatus for separating a coated electric wire into a coating and a core wire.

  A device that separates and collects a covering material and a core wire of a covered electric wire, and holds a covered electric wire and feeds it in a feeding direction, and a pair of rotary blades that cut the covering material of the covered electric wire from a symmetrical position JP, 11-196514, A As a covering material / core wire separation and recovery device for a covered electric wire, comprising a covering material separating tool for separating the covering material cut by the pair of rotary blades from the core wire Has been proposed.

  JP-A-11-196514

  However, the coated wire covering material / core wire separation and recovery apparatus in Patent Document 1 has a complicated configuration, a large apparatus, and a high price. In addition, it was heavy and difficult to transport manually. Furthermore, it was difficult to cut a thin single wire having a coating outer diameter of about 3.2 mm, and it was difficult to perform a separation process.

  In the present invention, a thin single wire to a thick single wire having an outer diameter of about 3.2 mm (for example, an outer diameter of the coating material of about 20 mm), a stranded wire coated with PE, a cable, and the like can be separated by a single device. The purpose is to. Another object of the present invention is to make the device a desktop type that is convenient for transportation and to be compact and lightweight, to be easy to handle with few failures, and to realize low cost.

  The coated wire separation processing device according to the present invention comprises an opposed rotary blade for making a cut in the coated layer of the coated wire, and an opposed coated wire transfer means for holding and transporting the coated wire with a sharp protrusion, The covered electric wire transfer means is provided on both side surfaces of the rotary blade, and has a plurality of pointed protrusions that are tapered from the root toward the tip on the outer periphery of the disk at predetermined intervals. With a pair of opposed rotary blades, a thin single wire to a thick single wire having an outer diameter of about 3.2 mm (for example, the outer diameter of the covering material is about 20 mm), a twisted wire coated with PE, and a covering material such as a cable are cut. It can be inserted from two directions, and the coating material and the core wire (made of copper, AL, etc.) can be separated.

  Furthermore, the coated wire separation processing apparatus according to the present invention forcibly rotates one side of the opposed rotary blade and the opposed coated wire transfer means, and the other side is driven and rotated by friction or biting with the coating material. Thus, it is not necessary to forcibly drive the driven rotation side. In addition, a timing pulley, a timing belt, a meshing gear, or the like used for forced driving is not necessary. In addition, there is no timing pulley driving sound by the timing belt or gear meshing sound, and noise reduction can be achieved. Furthermore, the size and weight of the device can be reduced.

  Further, the coated wire separation processing apparatus according to the present invention is characterized in that, in the above configuration, the rotating blade forcibly rotating and the covered wire transfer means attached to the rotating blade are directly attached to the rotating shaft of the driving motor. This eliminates the need for a rotary blade bearing that is forcibly driven, a gear or timing pulley, a timing belt, or the like that transmits power from the motor. As a result, the size and weight of the device can be reduced. In addition, noise reduction can be achieved.

  Further, the coated wire separation processing apparatus according to the present invention has the above-described configuration, wherein the diameter drawn by the tip of the sharp projection provided on the coated wire transfer means is smaller than the outer diameter of the rotary blade, and the sharp projection is disposed in the circumferential direction. The interval is larger than a half of the difference between the diameter dimension drawn by the tip of the sharp protrusion and the outer diameter dimension of the rotary blade, thereby reliably transporting the covered electric wire without slipping. it can.

  With the above-described configuration, the coated wire separation processing apparatus of the present invention can separate a thin single wire to a thick single wire having a coating outer diameter of about 3.2 mm, a stranded wire coated with PE, a cable, and the like into a covering material and a core wire. In addition, the device can be reduced in size and weight to a desktop A4 size. For example, it can be configured as W297 mm × D210 mm × H171 mm, weight 12 kg, and the like. Fewer components and fewer failures. Silence can be achieved. Handling can be simplified. Low price can be realized.

  The principal part front view of the separation processing apparatus of the covered electric wire in one Example of this invention   1 is a plan view of the main part of FIG.   Side view of the main part of the concept showing the process of making a cut in the covered electric wire and transferring the covered electric wire in a predetermined direction by the apparatus of FIG.   Sectional drawing of the principal part which cut | disconnected FIG. 2 by cutting line S1-S1   FIG. 1 is a side view of a main part showing a relationship between outer diameters of a rotating blade constituting FIG. 1 and a covered wire transfer means attached to the rotating blade.   Side view of essential parts of the covered wire transfer means constituting FIG.   Side view of the main part of the rotary blade constituting FIG.

  The covered electric wires 150 that are separated by the apparatus of the present invention are roughly classified into three types: single wires, stranded wires, and cables. A single wire is a single core wire (metal wire such as copper or aluminum) covered with a covering material such as polyvinyl chloride. The stranded wire is a wire in which a plurality of metal wires are twisted to form a core wire 80, and the core wire 80 is covered with a covering material 90 such as polyvinyl chloride or polyethylene. The cable is a cable in which a plurality of the single wires or the stranded wires are bundled and covered with a resin coating material such as polyvinyl chloride.

  The coated wire separation processing apparatus according to the present invention is as described above. 1 to 7, the coated wire separation processing apparatus 100 according to the present invention includes a pair of opposed rotary blades 10 and 10 that make a cut in the coating layer 90 of the coated wire 150, and the coated wire 150 with a sharp protrusion 3. And a pair of opposed covered electric wire transfer means (projection disks) 2 and 2 for transferring the wire in a predetermined direction. The covered wire transfer means 2 and 2 are attached to both side surfaces of the rotary blade 10.10, and a plurality of pointed projections 3 that are tapered from the root toward the tip are arranged at predetermined intervals on the outer periphery of the disk. Do it.

  Further, as shown in the conceptual diagram of FIG. 4, one side of the opposed rotary blades 10 and 10 and the covered coated wire transfer means (projection disks) 2 and 2 are forcibly driven to rotate, and the other side is covered with the coating material. The configuration is such that it is driven and rotated by friction or biting. A rotary blade 10 that is forcibly rotated and a covered electric wire transfer means (projection disk) 2 attached to the rotary blade 10 are directly attached to the rotary shaft 21 of the drive motor 20. For example, the bolt 22 is fastened to the end of the rotating shaft 21. The rotary blade 10 on the driven rotation side and the covered electric wire transfer means (projection disk) 2 attached to the rotary blade 10 are integrally attached to the shaft 30. The shaft 30 is rotatably supported by bearings 40, 40 at both ends.

  4 is a conceptual diagram, and means for fastening the rotary blade 10 and the covered electric wire transfer means (projection disk) 2 and means for fixing the rotary blade 10 and the covered electric wire transfer means (projection disk) 2 to the shaft 30 and the like. Omitted. As the fastening or fixing means, any means such as general bolt fastening, key fastening, press-fitting, and joining may be used.

  Furthermore, in the coated wire separation processing apparatus 100, the diameter drawn by the tip of the sharp projection 3 provided in the coated wire transfer means 2 and 2 is smaller than the outer diameter of the rotary blade 10, and the circumferential arrangement interval of the sharp projection 3 is as follows. P is configured to be larger than ½ of the difference between the diameter dimension drawn by the tip of the sharp protrusion 3 and the outer diameter dimension of the rotary blade 10 (indicated by h in FIG. 5). This is because if the circumferential disposition interval P of the protrusions 3 is too small, the tips of the protrusions 3 are unlikely to bite into the covering 90 and the transporting force of the covered electric wires is small. As a result of the experiment, the arrangement interval P in the circumferential direction of the protrusion 3 is made larger than 1/2 of the difference between the diameter dimension drawn by the tip of the protrusion 3 and the outer diameter dimension of the rotary blade 10 (h in FIG. 5). As a result, a good coated wire transfer force was obtained.

  As shown in FIGS. 3 and 4, the procedure for separating the covered electric wires 150 is performed by a pair of opposed rotating blades 10, 10 and the covered electric wire transfer means (projection disks) 2, 2 attached to the rotating blades 10, 10. The covering material 90 is cut to a predetermined depth from above and below by pressing. As described above, the coated wire transfer means (projection disk) 2 attached to the rotary blade 10 on one side is directly attached to the rotary shaft 21 of the drive motor 20 and is forcibly rotated. The other end of the rotary blade 10 and the covered electric wire transfer means (projection disk) 2 attached thereto are driven to rotate by friction with the covered electric wire 150, biting, or the like.

  The covered electric wire 150 shown in FIGS. 3 and 4 is a typical stranded wire having an outer diameter of the covering material 90 of about 20 mm. After the covered electric wire 150 was inserted from the upper and lower directions to the extent where it touches the core wire 80 by the pair of opposed rotary blades 10 and 10 of the device 100 of the present invention, the covering material 90 was peeled off manually to take out the core wire 80. . The cutting speed was about 20 m / min.

  In the above configuration, the pair of opposed rotary blades 10 and 10 has an outer diameter of 40 mm, a thickness of 2 mm, and a high-speed steel that has been subjected to quenching treatment. Furthermore, a sharp V-shaped cutting edge portion was formed at the circumferential tip. The diameter of the projection 3 of the pair of covered electric wire transfer means (projection disks) 2 and 2 facing each other is 36 mm, the diameter of the disk on which the projections 3 are disposed is 32 mm, the thickness of the disk is 1 mm, and the material is a high-speed steel that is quenched. It was assumed. Half of the difference between the diameter dimension drawn by the tip of the protrusion 3 and the outer diameter dimension of the rotary blade 10, that is, h = 2 mm in FIG. 5, the disposition pitch P of the protrusion 3 disposed on the outer periphery of the disk is about 5 mm. did. (Protrusions 3 are arranged at intervals of 15 degrees by dividing the circumference into 24 equal parts.)

  In the above-mentioned device of the present invention, there is provided a rotating blade facing interval varying means for moving the position of the rotating blade 10 that is driven to rotate by friction or biting with the covered electric wire 150 and making the facing interval of the opposed rotating blades 10, 10 variable. A configuration (not shown) having a configuration (not shown), a scale plate (not shown) that displays the facing interval in synchronization with the rotating blade facing interval variable means, and the rotating blade facing interval varying means and the scale plate. Obviously, a configuration (not shown) linked by a gear train or the like may be arbitrarily added and configured. Further, it is obvious that a configuration may be adopted in which a pair of opposed crushing rollers for pressing the single wire coating to crush and peel the coating is provided and one side is forcibly driven.

  The present invention can be applied not only to a covered electric wire whose core wire is made of a metal member such as copper or aluminum, but also to an optical fiber made of glass or plastic whose core wire is transparent, various pipe members used for an air conditioner or the like.

2 Coated wire transfer means (projection disk)
3 Projection 10 Rotating blade 11 Cutting blade 20 Drive motor 21 Motor shaft 22 Bolt 30 Shaft 40 Bearing 80 Core wire 90 Coated 100 Coated wire separation processing device 150 Coated wire

Claims (4)

  An opposed rotary blade for making a cut in the coating layer of the covered electric wire, and an opposed covered electric wire transfer means for holding and moving the covered electric wire with a sharp protrusion, and the covered electric wire transfer means is attached to the rotary blade And a plurality of pointed protrusions that are tapered from the base toward the tip on the outer peripheral portion of the disk.   2. A coated wire separation processing apparatus according to claim 1, wherein one side of the opposed rotary blade and the opposed covered wire transfer means is forcibly rotated and the other side is driven and rotated by a covering material. .   3. The coated electric wire separation processing apparatus according to claim 2, wherein the rotating blade forcibly driven to rotate and the covered electric wire transfer means attached to the rotating blade are directly attached to the rotating shaft of the drive motor.   The diameter drawn by the tip of the sharp projection provided on the covered wire transfer means is smaller than the outer diameter of the rotary blade, and the circumferential arrangement interval of the sharp projection is the diameter dimension drawn by the tip of the sharp projection and the rotation The apparatus for separating coated wire according to any one of claims 1 to 3, wherein the apparatus is greater than ½ of the difference from the outer diameter of the blade.

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