JP3991055B2 - Wire stripping method and wire stripping device - Google Patents

Wire stripping method and wire stripping device Download PDF

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JP3991055B2
JP3991055B2 JP2005239493A JP2005239493A JP3991055B2 JP 3991055 B2 JP3991055 B2 JP 3991055B2 JP 2005239493 A JP2005239493 A JP 2005239493A JP 2005239493 A JP2005239493 A JP 2005239493A JP 3991055 B2 JP3991055 B2 JP 3991055B2
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electric wire
insulation coating
pair
longitudinal
cut
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JP2006034097A (en
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晶博 水野
啓志 古谷
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Yazaki Corp
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Description

本発明は、電線の長手方向中間部における絶縁被覆の除去を自動的に行うことのできる電線皮剥き方法及び電線皮剥き装置に関するものである。   The present invention relates to a method for stripping an electric wire and a device for stripping an electric wire that can automatically remove an insulation coating at a middle portion in the longitudinal direction of the electric wire.

図18〜図21は従来の電線皮剥き方法を示すものである。   18 to 21 show a conventional wire stripping method.

この電線皮剥き方法は、被覆電線1の長手方向中間部における絶縁被覆1aを除去するためのものであり、先ず、図18の如く、電線1の長手方向の前後において上下ないしは左右各一対の周方向切り込みカッタ55〜58で電線1の絶縁被覆1aに周方向の切り込みを入れる。各周方向切り込みカッタ55〜58は図19の如く略V字状の刃部59,60を有している。絶縁被覆1aは略菱形状に切り込まれ、芯線1bの上下及び左右に未切断部(繋がり部分)40〜43が残存する。   This wire stripping method is for removing the insulation coating 1a in the middle portion in the longitudinal direction of the covered wire 1. First, as shown in FIG. Cuts in the circumferential direction are made in the insulation coating 1a of the electric wire 1 by the direction cut cutters 55-58. Each circumferential cutting cutter 55-58 has substantially V-shaped blade portions 59, 60 as shown in FIG. The insulating coating 1a is cut into a substantially rhombus shape, and uncut portions (connected portions) 40 to 43 remain on the top and bottom and the left and right of the core wire 1b.

次いで、図20(a)(b)の如く、前後の周方向切り込み部61,62の間において絶縁被覆1a’の下側に左右一対の長手方向切り込みカッタ63,64を縦置きに配し、電線1の上から超音波ホーン28で電線1を長手方向切り込みカッタ63,64に向けて超音波振動させながら押圧して、絶縁被覆1a’の両側に縦方向の切り込みを入れる。一対の長手方向切り込みカッタ63,64の間隔は電線1の芯線1bの外径にほぼ等しい。これにより、前後の周方向切り込み部61,62の間において絶縁被覆1a’が上下に分割される。前後の周方向切り込み部61,62においては図19の如く芯線1bの上下左右において絶縁被覆1a,1a’(図20)が切断されずに連続している。   Next, as shown in FIGS. 20 (a) and 20 (b), a pair of left and right longitudinal cut cutters 63 and 64 are vertically arranged between the front and rear circumferential cut portions 61 and 62 below the insulating coating 1a ′. The electric wire 1 is pressed from above the electric wire 1 while being ultrasonically vibrated toward the longitudinal cutting cutters 63 and 64 by the ultrasonic horn 28, and the vertical cutting is made on both sides of the insulating coating 1a '. The distance between the pair of longitudinal cutting cutters 63 and 64 is substantially equal to the outer diameter of the core wire 1 b of the electric wire 1. Thereby, the insulation coating 1a 'is divided vertically between the front and rear circumferential cuts 61 and 62. In the front and rear circumferential cuts 61 and 62, the insulating coatings 1a and 1a '(FIG. 20) are continuous without being cut at the top, bottom, left and right of the core wire 1b as shown in FIG.

最後に、図21の如く、作業者が手作業で上下の絶縁被覆(被覆カス)65,66を電線1から上下に引っ張るようにして除去する。絶縁被覆1a’(図20)を上下に引っ張ることで、図20の周方向切り込み部61,62における絶縁被覆1a,1a’の上下左右の繋がり部分40〜43(図19)が完全に切断される。被覆カス65,66はその場で皮剥き機(図示せず)の底部に落とす等して、後でまとめて作業者が清掃処理する。   Finally, as shown in FIG. 21, the operator manually removes the upper and lower insulating coatings (coating scraps) 65 and 66 by pulling them up and down from the electric wire 1. By pulling up and down the insulating coating 1a ′ (FIG. 20), the upper, lower, left and right connecting portions 40 to 43 (FIG. 19) of the insulating coatings 1a and 1a ′ in the circumferential cut portions 61 and 62 in FIG. The The covering debris 65 and 66 are dropped onto the bottom of a peeling machine (not shown) on the spot, and the worker cleans them later together.

図21で電線1の中間部に露出した芯線1bには、例えば他の電線(図示せず)の端末部がジョイント端子や溶接等により分岐接続される。あるいは、芯線1bに位置決め用の端子(図示せず)が圧着固定され、図示しないコネクタハウジング内で電線1が長手方向に位置決め固定される。   In FIG. 21, for example, a terminal portion of another electric wire (not shown) is branched and connected to the core wire 1 b exposed at the intermediate portion of the electric wire 1 by a joint terminal, welding, or the like. Alternatively, a positioning terminal (not shown) is crimped and fixed to the core wire 1b, and the electric wire 1 is positioned and fixed in the longitudinal direction in a connector housing (not shown).

しかしながら、上記従来の電線皮剥き方法にあっては、作業者が手作業で電線1から被覆カス65,66を取り除かなければならないために、多くの工数がかかり、生産性が悪いという問題や、被覆カス65,66の取り忘れが起こりやすいという品質上の問題があった。また、絶縁被覆1aを手作業で毟り取るようにして除去するために、絶縁被覆1aの切断面が荒れやすく、品質上問題があった。また、皮剥き機の底部に落下した被覆カス65,66を作業者が清掃する作業は大変面倒であるという問題があった。   However, in the above-described conventional wire stripping method, since the operator must manually remove the covering debris 65, 66 from the electric wire 1, a lot of man-hours are required and the productivity is poor. There was a problem in quality that it was easy to forget to remove the covering residues 65, 66. Further, since the insulating coating 1a is removed by scraping by hand, the cut surface of the insulating coating 1a is likely to be rough, and there is a problem in quality. In addition, there is a problem that it is very troublesome for an operator to clean the covering debris 65, 66 that has dropped to the bottom of the peeling machine.

本発明は、上記した問題を解消すべく、電線の中間部から絶縁被覆を自動的にしかも簡単且つ確実に取り除く(皮剥きする)ことができて、工数の削減及び生産性の向上及び品質の向上を達成し得る電線皮剥き方法及び電線皮剥き装置を提供することを目的とする。   In order to solve the above-mentioned problems, the present invention can automatically and reliably remove (strip off) the insulation coating from the middle portion of the electric wire, thereby reducing man-hours, improving productivity and improving quality. An object of the present invention is to provide an electric wire peeling method and an electric wire peeling device that can achieve improvement.

上記目的を達成するために、本発明に係る電線皮剥き方法は、周方向切り込みカッタで電線の絶縁被覆に周方向の切り込みを入れた後、刃部を同方向に突出させた対向する一対の長手方向切り込みカッタで該絶縁被覆に長手方向の切り込みを入れて、該絶縁被覆を除去する電線皮剥き方法において、前記一対の長手方向切り込みカッタの前記刃部で前記絶縁被覆に一対の長手方向の切り込みを入れた際に、一対の該刃部の外側傾斜面に交差して続く両肩部に該絶縁被覆の両長手方向切り込み端部を突き当てて外側に押し拡げつつ該絶縁被覆を剥離方向に押圧し、エアブロー手段で空気を該絶縁被覆に吹き付けることで、該絶縁被覆を除去することを特徴とする(請求項1)。 In order to achieve the above-described object, the wire stripping method according to the present invention includes a pair of opposed cutting blades protruding in the same direction after making a circumferential cut in the insulation coating of the wire with a circumferential cut cutter. In the method of stripping the electric wire by making a longitudinal cut in the insulating coating with a longitudinal cutting cutter and removing the insulating coating, a pair of longitudinal coatings are formed on the insulating coating with the blade portions of the pair of longitudinal cutting cutters. When the cuts are made, both longitudinal cut ends of the insulation coating are brought into contact with both shoulder portions that intersect the outer inclined surfaces of the pair of blade portions, and the insulation coating is peeled off while being spread outward. The insulating coating is removed by spraying air onto the insulating coating by air blowing means (claim 1).

また、本発明に係る電線皮剥き装置は、電線の絶縁被覆に周方向の切り込みを入れる周方向切り込みカッタと、該絶縁被覆に長手方向の切り込みを入れるための、刃部を同方向に突出させた対向する一対の長手方向切り込みカッタとを備える電線皮剥き装置において、前記一対の前記長手方向切り込みカッタが、外側傾斜面を有する一対の刃部と、各外側傾斜面に交差して続く各肩部とを備え、該一対の刃部で前記絶縁被覆に一対の長手方向の切り込みを入れた際に、両肩部に該絶縁被覆の両長手方向切り込み端部が突き当たって外側に押し拡げられつつ該絶縁被覆が剥離方向に押圧され、エアブロー手段で空気が該絶縁被覆に吹き付けられることで、該絶縁被覆が除去されることを特徴とする(請求項)。 Further, the wire stripping device according to the present invention includes a circumferential cutting cutter for making a circumferential cut in the insulation coating of the wire and a blade portion for making a longitudinal cut in the insulation coating in the same direction. In the wire stripping device comprising a pair of opposing longitudinal cut cutters, the pair of longitudinal cut cutters each have a pair of blades having outer slopes and shoulders that intersect each outer slope. And when the pair of blades make a pair of longitudinal cuts in the insulation coating, both longitudinal cut ends of the insulation coating abut both shoulders and are spread outward. The insulating coating is pressed in the peeling direction, and air is blown onto the insulating coating by air blowing means, whereby the insulating coating is removed (claim 2 ).

以上の如く、請求項1,記載の発明によれば、絶縁被覆の長手方向切り込み端部が傾斜状の刃部に沿って肩部に突き当たることで、長手方向切り込み端部が強制的に外側に拡げられ、且つ絶縁被覆が剥離方向に押圧されるから、絶縁被覆の剥離が容易化し、エアブロー手段で簡単且つ確実に絶縁被覆が吹き飛ばされて除去される。 As described above, according to the first and second aspects of the invention, the longitudinal cut end of the insulation coating is forced against the outer side by striking the shoulder along the inclined blade. And the insulating coating is pressed in the peeling direction, so that the insulating coating is easily peeled off, and the insulating coating is easily and reliably blown off and removed by the air blowing means .

また、エアブローにより自動的に絶縁被覆が電線から取り除かれるから、従来の手作業による絶縁被覆の取り除きに較べて、工数が大幅に削減されると共に、生産性が向上し、且つ絶縁被覆の取り忘れ等の不具合が防止される。 In addition, since the insulation coating is automatically removed from the electric wire by air blow , the man-hours are greatly reduced, productivity is improved, and forgetting to remove the insulation coating compared to the conventional manual removal of the insulation coating. Etc. are prevented .

図1〜図17は、本発明に係る電線皮剥き方法及び電線皮剥き装置の一実施例を示すものである。   1 to 17 show an embodiment of an electric wire peeling method and an electric wire peeling apparatus according to the present invention.

この電線皮剥き方法は、電線1の長手方向中間部において前後各一対の周方向切り込みカッタ2〜5で絶縁被覆1aに周方向の切り込みを入れた後、各一対の周方向切り込みカッタ2〜5を電線長手方向に進退させて、各一対の周方向切り込みカッタ2〜5の間で絶縁被覆1aを母材(絶縁被覆)から完全に分離させ、その後、分離した絶縁被覆1a’(図9)に一対の長手方向切り込みカッタ8,9(図13)で長手方向の切り込みを入れて、エアブローにより電線1から被覆カス10を除去すると共にバキューム12(図15)で吸引するものである。   In this wire stripping method, after a circumferential cut is made in the insulating coating 1a with a pair of front and rear circumferential cut cutters 2 to 5 at the longitudinal intermediate portion of the wire 1, each pair of circumferential cut cutters 2 to 5 The insulation coating 1a is completely separated from the base material (insulation coating) between each pair of circumferentially cut cutters 2 to 5, and then the separated insulation coating 1a ′ (FIG. 9). A pair of longitudinal cutting cutters 8 and 9 (FIG. 13) is used to cut the longitudinal cutting, and the covering residue 10 is removed from the electric wire 1 by air blowing and suction is performed by the vacuum 12 (FIG. 15).

以下に電線皮剥き方法を各過程毎に図面を用いて詳細に説明する。   Hereinafter, the method for stripping the electric wire will be described in detail for each process with reference to the drawings.

先ず、図1の如く電線長手方向の前後一対の電線セットガイド13,14に電線1を保持させる。一対の電線セットガイド13,14の間隔内において、中間位置に左右一対の周方向切り込みカッタ2〜5が位置し、各周方向切り込みカッタ2〜5の両側に左右各一対の電線クランプ15〜18が位置する。   First, the electric wire 1 is held by a pair of front and rear electric wire set guides 13 and 14 in the longitudinal direction of the electric wire as shown in FIG. Within a distance between the pair of wire set guides 13 and 14, a pair of left and right circumferential cut cutters 2 to 5 are positioned at an intermediate position, and a pair of left and right wire clamps 15 to 18 are disposed on both sides of each circumferential cut cutter 2 to 5. Is located.

各一対の周方向切り込みカッタ2〜5は各カッタホルダ6,7に固定されている。一方の一対の周方向切り込みカッタ2,3よりも他方の周方向切り込みカッタ4,5の間隔が大きく設定され、一方の周方向切り込みカッタ2,3の外面が他方の周方向切り込みカッタ4,5の内面に接する。各カッタホルダ6,7は図示しない駆動手段で電線径方向に移動可能である。図中の符号sは各カッタホルダ6,7の中心線を示す。   Each pair of circumferentially cut cutters 2 to 5 is fixed to each cutter holder 6 and 7. The distance between the other circumferential cutting cutters 4 and 5 is set larger than the pair of circumferential cutting cutters 2 and 3, and the outer surface of the one circumferential cutting cutter 2 or 3 is the other circumferential cutting cutter 4 or 5. It touches the inner surface. The cutter holders 6 and 7 are movable in the electric wire radial direction by a driving means (not shown). The symbol s in the figure indicates the center line of each cutter holder 6, 7.

各一対の電線クランプ15〜18も図示しない駆動手段で電線径方向に移動(開閉)可能である。電線クランプ15,16と電線クランプ17,18は別々に開閉可能であり、且つカッタホルダ6,7とは独立して電線径方向に移動可能である。   Each pair of electric wire clamps 15 to 18 can also be moved (opened / closed) in the electric wire radial direction by a driving means (not shown). The electric wire clamps 15 and 16 and the electric wire clamps 17 and 18 can be opened and closed separately, and can be moved in the electric wire radial direction independently of the cutter holders 6 and 7.

図2(図1の矢視A正面図)の如く、電線セットガイド14(電線セットガイド13も同様である)はV字状のガイド溝21と、ガイド溝21に続く円形の保持溝22とを有して、保持溝22内で電線1を抜け出しなく保持可能である。また、周方向切り込みカッタ2,4(周方向切り込みカッタ3,5も同様である)はV字状の刃部23,24を有して、基部側をカッタホルダ6,7にボルトで固定されている。また、図1の如く、各電線クランプ15〜18は先端側に電線押圧面25を有し、一方の電線クランプ16,18はV字状の電線ガイド板19,20を両側に有している。   As shown in FIG. 2 (front view of arrow A in FIG. 1), the electric wire set guide 14 (the electric wire set guide 13 is the same) includes a V-shaped guide groove 21 and a circular holding groove 22 following the guide groove 21. The electric wire 1 can be held in the holding groove 22 without coming out. Further, the circumferential cut cutters 2 and 4 (the same applies to the circumferential cut cutters 3 and 5) have V-shaped blade portions 23 and 24, and the base side is fixed to the cutter holders 6 and 7 with bolts. Yes. Further, as shown in FIG. 1, each of the wire clamps 15 to 18 has a wire pressing surface 25 on the tip side, and one of the wire clamps 16 and 18 has V-shaped wire guide plates 19 and 20 on both sides. .

そして、先ず図3の如く、各電線クランプ15〜18を閉じて電線1を把持する。次いで、図4の如く、カッタホルダ6,7を電線径方向に移動させて、各周方向切り込みカッタ2〜5で電線1の径方向両側から絶縁被覆に周方向(円周上)の切り込みを入れる。この状態は従来例の図19で示した状態と同様である。   And first, as shown in FIG. 3, each electric wire clamp 15-18 is closed and the electric wire 1 is hold | gripped. Next, as shown in FIG. 4, the cutter holders 6 and 7 are moved in the radial direction of the wire, and circumferential cuts (circumferentially) are made in the insulation coating from both sides in the radial direction of the wire 1 with the respective circumferential cuts 2 to 5. . This state is the same as the state shown in FIG.

次いで、図5の如く一方の電線クランプ17,18を閉じた状態で、他方の電線クランプ15,16を開く。そして、図6の如く、周方向切り込みカッタ2〜5を閉じた状態で一対のカッタホルダ6,7を周方向切り込みカッタ2〜5と一体で同時に他方の電線クランプ15,16側に少し移動させる。この移動量L1 は2〜5mm程度と僅かなものである。 Next, with the one electric wire clamps 17 and 18 closed as shown in FIG. 5, the other electric wire clamps 15 and 16 are opened. Then, as shown in FIG. 6, the pair of cutter holders 6 and 7 are moved together with the circumferential cut cutters 2 to 5 to the other wire clamps 15 and 16 side in a state where the circumferential cut cutters 2 to 5 are closed. This movement amount L 1 is as small as about 2 to 5 mm.

この動作により、一方の電線クランプ17,18寄りの周方向切り込みカッタ3,5の外側において電線1の絶縁被覆1aの周方向切り込み部49が完全に切断される。すなわち、一方の電線クランプ17,18で電線1の絶縁被覆1aを把持しているから、他方の電線クランプ15,16側へ周方向切り込みカッタ2〜5で絶縁被覆1a’を移動させることで、絶縁被覆1aが一方の電線クランプ17,18と周方向切り込みカッタ3,5との間で引っ張られて切断される。他方のクランプ15,16側に絶縁被覆1a’が移動量の分だけ圧縮されるが、他方の電線クランプ15,16が開いているから、圧縮された絶縁被覆1a’が長手方向に吸収され、絶縁被覆1a’が弛むことがない。   By this operation, the circumferential cut portion 49 of the insulation coating 1a of the electric wire 1 is completely cut outside the circumferential cut cutters 3 and 5 near one of the electric wire clamps 17 and 18. That is, since the insulation coating 1a of the electric wire 1 is held by one of the electric wire clamps 17 and 18, the insulation coating 1a 'is moved to the other electric wire clamps 15 and 16 side by the circumferential cutting cutters 2 to 5, The insulation coating 1a is pulled and cut between one of the electric wire clamps 17 and 18 and the circumferential cutting cutters 3 and 5. The insulation coating 1a ′ is compressed by the amount of movement on the other clamps 15 and 16 side, but since the other wire clamps 15 and 16 are open, the compressed insulation coating 1a ′ is absorbed in the longitudinal direction, The insulating coating 1a ′ is not loosened.

次いで、図7の如く他方の電線クランプ15,16を閉じる。カッタホルダ6,7はL1 だけ移動した状態のままである。図6の工程で絶縁被覆1a’の弛みが吸収された状態で、図7の工程で電線1が電線クランプ15,16で把持されるから、電線1に弛みが生じることがない。 Next, the other wire clamps 15 and 16 are closed as shown in FIG. The cutter holders 6 and 7 remain moved by L 1 . Since the electric wire 1 is gripped by the electric wire clamps 15 and 16 in the step of FIG. 7 in a state where the loosening of the insulating coating 1a ′ is absorbed in the step of FIG. 6, the electric wire 1 is not loosened.

次いで、図8の如く、一方の電線クランプ17,18を開く。そして、図9の如く、周方向切り込みカッタ2〜5を閉じた状態で、カッタホルダ6,7を周方向切り込みカッタ2〜5と一体で一方の電線クランプ17,18側に先程よりも大きな距離で移動させる。この移動量L2 は先の移動量L1 の二倍であり、4〜10mm程度である。L2 −L1 すなわちカッタホルダの中心線sからの移動量は2〜5mm程度と第一の移動量L1 と同一である。周方向切り込みカッタ2,4の内側で絶縁被覆1a’が母材(絶縁被覆1a)から離間する距離も図6の場合と同一である。 Next, as shown in FIG. 8, one of the electric wire clamps 17 and 18 is opened. Then, as shown in FIG. 9, with the circumferential cut cutters 2 to 5 closed, the cutter holders 6 and 7 are integrated with the circumferential cut cutters 2 to 5 on the side of one of the electric wire clamps 17 and 18 at a larger distance than before. Move. This movement amount L 2 is twice the previous movement amount L 1 and is about 4 to 10 mm. L 2 −L 1, that is, the amount of movement of the cutter holder from the center line s is about 2 to 5 mm, which is the same as the first amount of movement L 1 . The distance at which the insulating coating 1a ′ is separated from the base material (insulating coating 1a) inside the circumferential cutting cutters 2 and 4 is also the same as in FIG.

この動作により、他方の電線クランプ15,16寄りの周方向切り込みカッタ2,4の外側において電線1の絶縁被覆1aの周方向切り込み部50が完全に切断される。すなわち、他方の電線クランプ15,16で電線1の絶縁被覆1aを把持しているから、一方の電線クランプ17,18側へ周方向切り込みカッタ2,4で絶縁被覆1a’を移動させることで、絶縁被覆1a’が他方の電線クランプ15,16と周方向切り込みカッタ2,4との間で引っ張られて切断される。それと同時に、図19における電線の上下左右の繋ぎ部分における芯線1bと絶縁被覆1a’との密着が解除される。   By this operation, the circumferential cut portion 50 of the insulating coating 1a of the wire 1 is completely cut outside the circumferential cuts 2 and 4 near the other wire clamps 15 and 16. That is, since the insulation coating 1a of the electric wire 1 is held by the other electric wire clamps 15 and 16, the insulation coating 1a ′ is moved to the one electric wire clamps 17 and 18 side by the circumferential cuts 2 and 4, The insulation coating 1a ′ is pulled and cut between the other electric wire clamps 15 and 16 and the circumferential cutting cutters 2 and 4. At the same time, the close contact between the core wire 1b and the insulating coating 1a 'at the upper, lower, left and right connecting portions of the electric wire in FIG. 19 is released.

一方の電線クランプ17,18側に絶縁被覆1aが移動量L2 −L1 の分だけ圧縮されるが、一方の電線クランプ17,18が開いているから、絶縁被覆1aが弛むことがない。これは図6の場合と同様である。 The insulation coating 1a is compressed on the side of one of the wire clamps 17 and 18 by the amount of movement L 2 -L 1 , but the insulation coating 1a is not loosened because one of the wire clamps 17 and 18 is open. This is the same as in the case of FIG.

次いで、図10の如く、一方の電線クランプ17,18を閉じる。図9の工程で絶縁被覆1aの弛みが起こらないから、図10の工程で電線1をクランプした際に、電線1に弛みが生じず、電線1がピンと張った状態に保たれる。これにより、後工程における絶縁被覆1a’の長手方向の切り込みを容易に且つ正確に行うことができる。   Next, as shown in FIG. 10, one of the electric wire clamps 17 and 18 is closed. Since the insulation coating 1a is not loosened in the process of FIG. 9, when the electric wire 1 is clamped in the process of FIG. 10, the electric wire 1 is not loosened, and the electric wire 1 is kept in a tight state. This makes it possible to easily and accurately cut the insulating coating 1a 'in the longitudinal direction in the subsequent process.

次いで、図11の如く、カッタホルダ6,7を中央位置(原位置)に復帰させる。すなわち他方の電線クランプ15,16側にL3 すなわちL2 −L1 の距離(2〜5mm程度)移動させる。そして、図12の如く各カッタホルダ6,7を電線径方向に外向きに移動させて、周方向切り込みカッタ2〜5を開き方向に離間させ、原位置に復帰させる。 Next, as shown in FIG. 11, the cutter holders 6 and 7 are returned to the center position (original position). That is, the distance of L 3, that is, L 2 −L 1 (about 2 to 5 mm) is moved to the other electric wire clamps 15 and 16 side. Then, as shown in FIG. 12, the cutter holders 6 and 7 are moved outward in the electric wire radial direction, the circumferential cut cutters 2 to 5 are separated in the opening direction, and returned to the original positions.

さらに、この状態で、図13〜図16に示す如く、長手方向切り込みカッタ8,9と超音波ホーン28とにより電線1の絶縁被覆1a’に長手方向の切り込みを入れて、エアブローと自動落下により被覆カス10,11を電線1から自動的に取り除く。図13〜図16は、本発明に係る電線皮剥き方法及び電線皮剥き装置の主要部を示すものである。   Further, in this state, as shown in FIGS. 13 to 16, the longitudinal cuts 8 and 9 and the ultrasonic horn 28 are used to make a longitudinal cut in the insulation coating 1a ′ of the electric wire 1, and by air blowing and automatic dropping. The covering debris 10 and 11 are automatically removed from the electric wire 1. FIGS. 13-16 shows the principal part of the electric wire peeling method and electric wire peeling apparatus which concern on this invention.

すなわち、先ず図13の如く、電線1の上側に超音波ホーン28を配置し、電線1の下側に一対の長手方向切り込みカッタ8,9を配置し、長手方向切り込みカッタ8,9の横にエア吹き出しチューブ29を配置する。図12の如く電線1は各一対の電線クランプ15〜18で把持されたままである。超音波ホーン28と長手方向切り込みカッタ8,9とは、先に周方向切り込みカッタ2〜5で切断した絶縁被覆1a’に対向して配置される。長手方向切り込みカッタ8,9は垂直に(縦に)配置される。   That is, first, as shown in FIG. 13, the ultrasonic horn 28 is arranged on the upper side of the electric wire 1, the pair of longitudinal cutting cutters 8 and 9 are arranged on the lower side of the electric wire 1, and next to the longitudinal cutting cutters 8 and 9. An air blowing tube 29 is arranged. As shown in FIG. 12, the electric wire 1 is still held by each pair of electric wire clamps 15-18. The ultrasonic horn 28 and the longitudinal cutting cutters 8 and 9 are arranged to face the insulating coating 1a 'previously cut by the circumferential cutting cutters 2 to 5. The longitudinal cutting cutters 8, 9 are arranged vertically (vertically).

超音波ホーン28は電線1の外径よりもかなり大径な円柱状の電線押圧部30を有する。また、各長手方向切り込みカッタ8,9は対称に形成され、柱状の本体31と、本体31の上部で内向きにやや突出した部分(突出部)32と、突出部32の上部に立設された略くさび状(傾斜状)の刃部33とを備えている。刃部33の長さ(電線長手方向の幅)は先の一対の周方向切り込みカッタ4,5の内側間隔にほぼ等しい。   The ultrasonic horn 28 has a cylindrical wire pressing portion 30 that is considerably larger than the outer diameter of the wire 1. The longitudinal cutting cutters 8 and 9 are formed symmetrically, and are erected on a columnar main body 31, a portion (protrusion portion) 32 that protrudes slightly inward at the upper portion of the main body 31, and an upper portion of the protrusion portion 32. And a substantially wedge-shaped (inclined) blade portion 33. The length of the blade portion 33 (the width in the longitudinal direction of the electric wire) is substantially equal to the inner distance between the pair of circumferential cuts 4 and 5.

突出部32の内面と刃部33の内面とで平坦な垂直面34を構成している。垂直面34の下側には段部35が構成され、対向する垂直面34の間隔よりも段部35から下側の本体31の内側面36の間隔が広く形成されている。また、刃部33の傾斜状の外側面33aは本体31の肩部37の水平な上端面に交差して続いている。肩部37の外寄りにはテーパ面取り38が施され、一方の長手方向切り込みカッタ8の肩部37の横にエア吹き出しチューブ29の先端29aが位置している。   The inner surface of the projecting portion 32 and the inner surface of the blade portion 33 constitute a flat vertical surface 34. A step portion 35 is formed below the vertical surface 34, and the interval between the step portion 35 and the inner side surface 36 of the lower main body 31 is formed wider than the interval between the opposing vertical surfaces 34. Further, the inclined outer surface 33 a of the blade portion 33 continues to intersect the horizontal upper end surface of the shoulder portion 37 of the main body 31. A taper chamfer 38 is provided on the outer side of the shoulder portion 37, and a tip end 29 a of the air blowing tube 29 is located beside the shoulder portion 37 of one longitudinal cutting cutter 8.

図14の如く、一対の長手方向切り込みカッタ8,9の上に電線1をセットした状態で、従来と同様に電線1の上から超音波ホーン28を超音波振動(微振動)させながら加圧する。これにより、電線1の絶縁被覆1a’に長手方向の切り込みが入れられ、図19における芯線1bの上下又は左右における絶縁被覆1aの繋がり部分40,41又は繋がり部分42,43が切断されて、図14の絶縁被覆1a’が上下に分割される。   As shown in FIG. 14, in a state where the electric wire 1 is set on the pair of longitudinal cut cutters 8 and 9, the ultrasonic horn 28 is pressurized from above the electric wire 1 while being ultrasonically vibrated (slightly vibrated) as in the prior art. . Thereby, a longitudinal cut is made in the insulation coating 1a ′ of the electric wire 1, and the connection portions 40, 41 or the connection portions 42, 43 of the insulation coating 1a on the top and bottom or the left and right of the core wire 1b in FIG. 14 insulating coatings 1a 'are divided into upper and lower parts.

先の工程(図9)で絶縁被覆1a’は電線長手方向の前後で母材(絶縁被覆1a)から完全に分離されているから、長手方向の切り込みが入れられた時点で、絶縁被覆1a’は上下に完全に分離している。   In the previous step (FIG. 9), the insulating coating 1a ′ is completely separated from the base material (insulating coating 1a) before and after the longitudinal direction of the electric wire. Therefore, when the longitudinal cut is made, the insulating coating 1a ′ Are completely separated up and down.

さらに図14の如く、絶縁被覆1a’の長手方向切り込み端部37が長手方向切り込みカッタ8,9の刃部33の傾斜状の外側面33a(図13)に沿って肩部37に突き当たることで、絶縁被覆1a’が外側に強制的に拡げられる共に、芯線1bに対して上向き(剥離方向)に押圧される。これにより絶縁被覆1a′が芯線1bから容易に剥離可能となる。長手方向切り込み端部37が十分に肩部に当接した時点で長手方向の切り込みが停止される。   Furthermore, as shown in FIG. 14, the longitudinal cut end 37 of the insulating coating 1 a ′ abuts against the shoulder 37 along the inclined outer surface 33 a (FIG. 13) of the blade 33 of the longitudinal cut cutters 8 and 9. The insulation coating 1a ′ is forcibly expanded outward and pressed upward (peeling direction) against the core wire 1b. As a result, the insulation coating 1a 'can be easily peeled off from the core wire 1b. When the longitudinal cut end 37 sufficiently contacts the shoulder, the longitudinal cut is stopped.

そして、図15の如く、エア吹き出しチューブ(エアブロー手段)29から空気44を強く吹き出すことで、上側の被覆カス10が簡単に飛ばされて、バキューム12に吸引される。被覆カス10は長手方向切り込み端部67側が大きく外側に広がっているから、圧縮空気44を受けやすく、エアブローで確実に吹き飛ばされてバキューム12で確実に吸引される。   Then, as shown in FIG. 15, the air 44 is strongly blown out from the air blowing tube (air blowing means) 29, whereby the upper covering residue 10 is easily blown and sucked into the vacuum 12. Since the covering residue 10 has a longitudinally cut end portion 67 side that is greatly spread outward, it is easy to receive the compressed air 44 and is reliably blown off by air blow and reliably sucked by the vacuum 12.

図16の如く、下側の被覆カス11は一対の長手方向切り込みカッタ8,9の刃部33,33の間で突出部32の各垂直面34に挟まれて残り、図16の如く、自重で、あるいは次に加工した電線1の被覆カス11に押されて本体31,31の間の幅広な空間45を経て落下する。   As shown in FIG. 16, the lower covering residue 11 is sandwiched between the vertical surfaces 34 of the projecting portion 32 between the blade portions 33, 33 of the pair of longitudinal cutting cutters 8, 9, and remains as shown in FIG. Alternatively, it is pushed by the coated scrap 11 of the processed electric wire 1 and falls through the wide space 45 between the main bodies 31 and 31.

バキューム12(図15)は幅広な開口部46と、開口部46に続く筒状部47とを有する。上側の被覆カス10はバキューム12によって自動的に収集される。下側の被覆カス11(図16)は長手方向切り込みカッタ8,9の下側に配置された図示しないボックス内に確実に収集される。   The vacuum 12 (FIG. 15) has a wide opening 46 and a cylindrical part 47 following the opening 46. The upper covering debris 10 is automatically collected by the vacuum 12. The lower covering debris 11 (FIG. 16) is reliably collected in a box (not shown) arranged below the longitudinal cutting cutters 8 and 9.

そして、図17の如く、電線1の長手方向の中間部に芯線1bが露出される。絶縁被覆1aの切断面48は、従来の作業者が手指で上下方向に毟り取るようにして除去した場合よりも綺麗に仕上がる。これは先の工程(図6,図9)で絶縁被覆1aを斜めにではなく電線長手方向に正確に引っ張るからに他ならない。   And the core wire 1b is exposed to the intermediate part of the longitudinal direction of the electric wire 1 like FIG. The cut surface 48 of the insulating coating 1a is finished more finely than when a conventional worker removes the cut surface 48 with his / her fingers. This is nothing but the fact that the insulating coating 1a is pulled accurately in the longitudinal direction of the electric wire rather than obliquely in the previous step (FIGS. 6 and 9).

なお、先に長手方向切り込みカッタ8,9で絶縁被覆1aに長手方向の切り込みを入れ、次いで長手方向の切り込み部の前後端において周方向切り込みカッタ2〜5で絶縁被覆1aに周方向の切り込みを入れることも可能である。また、長手方向切り込みカッタ8,9を一対ではなく一枚だけ用い、絶縁被覆1aの一箇所のみを長手方向に切断することも可能であり、この場合は長手方向の切り込み部を直接エアブローすることで、被覆カスを除去可能である。   First, the longitudinal cuts 8 and 9 are used to cut the insulation coating 1a in the longitudinal direction, and then the circumferential cuts 2 to 5 are used to cut the insulation coating 1a in the circumferential direction at the front and rear ends of the longitudinal cut portion. It is also possible to enter. It is also possible to cut only one portion of the insulating coating 1a in the longitudinal direction by using only one piece of the longitudinal cutting cutters 8 and 9 instead of a pair. In this case, the longitudinal cutting portion is directly air blown. Thus, the covering waste can be removed.

また、超音波ホーン28を用いずに、図示しないプレス等で電線1を下向きに押圧した状態で長手方向切り込みカッタ8,9で絶縁被覆1a’に切り込みを入れることも可能である。また、電線1を固定した状態で、長手方向切り込みカッタ8,9を上向きに移動させて絶縁被覆1a’に切り込みを入れることも可能である。また、図13〜図15に示した電線皮剥き方法においては、絶縁被覆1aの周方向に切り込みを入れる方法は図1〜図12に示す方法に限定されるものではない。   Further, without using the ultrasonic horn 28, the insulating coating 1a 'can be cut with the longitudinal cutting cutters 8 and 9 in a state where the electric wire 1 is pressed downward by a press (not shown) or the like. It is also possible to cut the insulating coating 1a 'by moving the longitudinal cutting cutters 8 and 9 upward while the electric wire 1 is fixed. Moreover, in the electric wire stripping method shown in FIGS. 13 to 15, the method of cutting in the circumferential direction of the insulating coating 1a is not limited to the method shown in FIGS.

本発明における電線皮剥き方法及び電線皮剥き装置の第一工程(電線セット工程)を示す平面図である。It is a top view which shows the 1st process (electric wire setting process) of the electric wire peeling method and electric wire peeling apparatus in this invention. 図1の矢視A−A正面図である。It is arrow AA front view of FIG. 同じく第二工程(電線クランプ工程)を示す平面図である。It is a top view which similarly shows a 2nd process (electric wire clamp process). 同じく第三工程(周方向切り込み工程)を示す平面図である。It is a top view which similarly shows a 3rd process (circumferential direction cutting process). 同じく第四工程(一方の電線クランプ解除工程)を示す平面図である。It is a top view which similarly shows a 4th process (one electric wire clamp cancellation | release process). 同じく第五工程(周方向切り込みカッタ移動工程)を示す平面図である。It is a top view which similarly shows the 5th process (circumferential cutting cutter moving process). 同じく第六工程(電線クランプ工程)を示す平面図である。It is a top view which similarly shows a 6th process (electrical wire clamp process). 同じく第七工程(他方の電線クランプ解除工程)を示す平面図である。It is a top view which similarly shows a 7th process (the other electric wire clamp cancellation | release process). 同じく第八工程(周方向切り込みカッタ移動工程)を示す平面図である。It is a top view which similarly shows the 8th process (circumferential cutting cutter moving process). 同じく第九工程(電線クランプ工程)を示す平面図である。It is a top view which similarly shows the 9th process (electrical wire clamp process). 同じく第十工程(周方向切り込みカッタ戻し工程)を示す平面図である。It is a top view which similarly shows a 10th process (circumferential cutting cutter return process). 同じく第十一工程(周方向切り込みカッタ開き工程)を示す平面図である。It is a top view which similarly shows the 11th process (circumferential cut cutter opening process). 本発明に係る電線皮剥き方法及び電線皮剥き装置の主要部である超音波ホーンと長手方向切り込みカッタの配置を示す正面図である。It is a front view which shows arrangement | positioning of the ultrasonic horn and longitudinal direction cutting cutter which are the principal parts of the electric wire peeling method and electric wire peeling apparatus which concern on this invention. 同じく第十二工程(長手方向切り込み工程)を示す正面図である。It is a front view which similarly shows the 12th process (longitudinal direction cutting process). 同じく第十三工程(エアブロー工程)を示す一部を断面した正面図である。It is the front view which carried out the cross section partially showing the 13th process (air blow process) similarly. 下側の被覆カスの落下状態を示す正面図である。It is a front view which shows the fall state of the lower covering waste. 電線の中剥きを完了した状態を示す平面図である。It is a top view which shows the state which completed stripping of the electric wire. 従来の電線皮剥き方法における周方向切り込み工程を示す平面図である。It is a top view which shows the circumferential direction cutting process in the conventional electric wire peeling method. 同じく周方向切り込み状態を示す縦断面図である。It is a longitudinal cross-sectional view which similarly shows the circumferential direction cutting state. (a)は従来の長手方向切り込み工程を示す側面図、(b)は同じく正面図である。(A) is a side view which shows the conventional longitudinal direction cutting process, (b) is a front view similarly. 従来の被覆カス除去工程を示す側面図である。It is a side view which shows the conventional covering waste removal process.

符号の説明Explanation of symbols

1 電線
1a,1a’ 絶縁被覆
2〜5 周方向切り込みカッタ
8,9 長手方向切り込みカッタ
10,11 被覆カス
12 バキューム
15〜18 電線クランプ
29 エア吹き出しチューブ(エアブロー手段)
33 刃部
37 肩部
49,50 周方向切り込み部
67 長手方向切り込み端部
DESCRIPTION OF SYMBOLS 1 Electric wire 1a, 1a 'Insulation coating 2-5 Circumferential cutting cutter 8,9 Longitudinal cutting cutter 10,11 Coating scrap 12 Vacuum 15-18 Electrical wire clamp 29 Air blowing tube (air blowing means)
33 Blade portion 37 Shoulder portion 49, 50 Circumferential cut portion 67 Longitudinal cut end

Claims (2)

周方向切り込みカッタで電線の絶縁被覆に周方向の切り込みを入れた後、刃部を同方向に突出させた対向する一対の長手方向切り込みカッタで該絶縁被覆に長手方向の切り込みを入れて、該絶縁被覆を除去する電線皮剥き方法において、
前記一対の長手方向切り込みカッタの前記刃部で前記絶縁被覆に一対の長手方向の切り込みを入れた際に、一対の該刃部の外側傾斜面に交差して続く両肩部に該絶縁被覆の両長手方向切り込み端部を突き当てて外側に押し拡げつつ該絶縁被覆を剥離方向に押圧し、エアブロー手段で空気を該絶縁被覆に吹き付けることで、該絶縁被覆を除去することを特徴とする電線皮剥き方法。
After making a circumferential cut in the insulation of the wire with a circumferential cutting cutter, make a longitudinal cut in the insulation with a pair of opposing longitudinal cutting cutters with the blades protruding in the same direction, In the method of peeling the wire to remove the insulation coating,
When a pair of longitudinal cuts are made in the insulation coating by the blade portions of the pair of longitudinal cut cutters, the insulation coating is applied to both shoulder portions that intersect with the outer inclined surfaces of the pair of blade portions. An electric wire characterized in that the insulation coating is removed by pressing the insulation coating in the peeling direction while abutting both longitudinal cut ends and pushing the insulation coating outward, and blowing air onto the insulation coating by air blowing means Skinning method.
電線の絶縁被覆に周方向の切り込みを入れる周方向切り込みカッタと、該絶縁被覆に長手方向の切り込みを入れるための、刃部を同方向に突出させた対向する一対の長手方向切り込みカッタとを備える電線皮剥き装置において、
前記一対の前記長手方向切り込みカッタが、外側傾斜面を有する一対の刃部と、各外側傾斜面に交差して続く各肩部とを備え、該一対の刃部で前記絶縁被覆に一対の長手方向の切り込みを入れた際に、両肩部に該絶縁被覆の両長手方向切り込み端部が突き当たって外側に押し拡げられつつ該絶縁被覆が剥離方向に押圧され、エアブロー手段で空気が該絶縁被覆に吹き付けられることで、該絶縁被覆が除去されることを特徴とする電線皮剥き装置。
A circumferential cut cutter for making a circumferential cut in the insulation coating of the electric wire, and a pair of opposed longitudinal cut cutters having blades protruding in the same direction for making a longitudinal cut in the insulation coating In the wire stripping device,
The pair of longitudinal cutting cutters includes a pair of blade portions having outer inclined surfaces and shoulders that continue to intersect the outer inclined surfaces, and the pair of blade portions are provided with a pair of longitudinal portions on the insulating coating. When the direction cuts are made, both longitudinal cut ends of the insulation coating abut against both shoulders and are pushed outward while the insulation coating is pressed in the peeling direction, and air is blown by the air blowing means. The wire stripping device is characterized in that the insulation coating is removed by being sprayed onto the wire.
JP2005239493A 1999-03-19 2005-08-22 Wire stripping method and wire stripping device Expired - Lifetime JP3991055B2 (en)

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