JPH06162844A - Chip wire treating method - Google Patents

Chip wire treating method

Info

Publication number
JPH06162844A
JPH06162844A JP32749992A JP32749992A JPH06162844A JP H06162844 A JPH06162844 A JP H06162844A JP 32749992 A JP32749992 A JP 32749992A JP 32749992 A JP32749992 A JP 32749992A JP H06162844 A JPH06162844 A JP H06162844A
Authority
JP
Japan
Prior art keywords
coating
core
wire
scrap
cut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP32749992A
Other languages
Japanese (ja)
Inventor
Mataemon Kimizuka
又▲え▼文 君塚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP32749992A priority Critical patent/JPH06162844A/en
Publication of JPH06162844A publication Critical patent/JPH06162844A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/82Recycling of waste of electrical or electronic equipment [WEEE]

Landscapes

  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)

Abstract

PURPOSE:To easily separate a core from a coating even in a small-size chip wire to be recovered, and facilitate treatment afterward. CONSTITUTION:The short size item 10A of a chip wire 10 is extruded from a coating 16 by a core extruding rod 28 and also the coating 16 is cut-divided by cut-dividing blades 30 and 30'. Consequently, the coating 16 is decomposed, and also the core 12 and the coating 16 can be separated to be recovered.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、例えば、不要の被覆電
線の如き屑線の被覆からコアを取り出す屑線処理方法に
関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste wire treating method for taking out a core from a waste wire coating such as an unnecessary coated electric wire.

【0002】[0002]

【従来の技術】被覆電線の製造過程で形成される不良品
や被覆電線の廃棄物等の不要の被覆電線は、長尺のまま
又は短尺に切り分けされた後、被覆を剥取って導体コア
と被覆とを分離し導体を回収することが行なわれてい
る。1つの従来技術では、線状体の引取り過程で線状体
の被覆にカッターを食い込ませ長手方向に切込みを入れ
て被覆を切り割りして被覆を剥取ることが行なわれてい
る(特公昭54−25230号公報又は実公昭55−3
3775号公報参照)。
2. Description of the Related Art Unnecessary covered electric wires such as defective products formed in the process of manufacturing covered electric wires and wastes of the covered electric wires are cut into long conductors or short conductors, and then the coating is peeled off to form a conductor core. It is practiced to separate the coating and recover the conductor. In one conventional technique, a cutter is bitten into the coating of the linear body in the process of pulling the linear body, a cut is made in the longitudinal direction to cut the coating, and the coating is peeled off (Japanese Patent Publication No. 54-54). -25230 gazette or Japanese Utility Model Publication 55-3
(See Japanese Patent No. 3775).

【0003】[0003]

【発明が解決しようとする課題】不要の被覆電線の如き
屑線は、乱雑に積み重ねたり、とぐろ巻きして回収され
ることが多い。このため、屑線同志が互いに絡まりあっ
ていることが多く、屑線処理のための引き出しの際に、
もつれやキックを起こしやすく、従って屑線を被覆剥取
装置に円滑に繰り込むことができなかった。特に、この
傾向は、長尺の屑線で顕著であり、このため、長尺の屑
線を効率よく処理することができなかった。
Waste wires such as unnecessary coated electric wires are often collected randomly and collected by winding. For this reason, scrap wires are often entangled with each other, and when drawing out for scrap wire processing,
Tangles and kicks were likely to occur, and therefore the scrap wire could not be smoothly fed into the coating stripping device. In particular, this tendency is remarkable in the long waste wire, and therefore, the long waste wire could not be efficiently treated.

【0004】一方、これらの従来技術では、コアを被覆
から分離して回収するために、コアが被覆の切り割りか
ら露出した後、コア及び被覆をそれぞれの誘導手段によ
って別個の方向に誘導しているので、長尺の屑線を処理
するのには適用することができるが、短尺の屑線を処理
するのには適用することができなかった。また、これら
の従来技術では、装置を始動する際に、屑線の処理開始
端を被覆の切り割り後、コアと被覆とを振り分けて誘導
するようにそれぞれの誘導手段にセットしなければなら
ないので、作業開始前の処理が面倒で作業性が低い欠点
があった。
On the other hand, in these prior arts, in order to separate and recover the core from the coating, the core and the coating are guided in different directions by the respective guiding means after the core is exposed from the slit of the coating. Therefore, it can be applied to treat a long scrap wire, but it cannot be applied to treat a short scrap wire. Further, in these conventional techniques, when starting the apparatus, after cutting the processing start end of the scrap wire of the coating, it has to be set to each guiding means so as to guide the core and the coating separately, There was a drawback that the work before the start of work was troublesome and the workability was low.

【0005】本発明の目的は、上記の欠点を回避し、短
尺の屑線でもその被覆からコアを分離して容易に回収す
ることができ、また作業開始前の準備が不要で高い効率
で作業することができる屑線処理方法を提供することに
ある。
The object of the present invention is to avoid the above-mentioned drawbacks, to separate even the short scrap wire from the coating by separating the core, and to easily recover the core without the need for preparation before starting the work. An object of the present invention is to provide a waste wire treatment method that can be performed.

【0006】[0006]

【課題を解決するための手段】本発明の第1の課題解決
手段は、屑線を固定した状態でこの屑線の被覆内からコ
アをコア押出し棒によって押し出して被覆とコアとを分
離することを特徴とする屑線処理方法を提供することに
ある。
A first means for solving the problems of the present invention is to separate the coating and the core by extruding the core from inside the coating of the waste wire with the core pushing rod while the waste wire is fixed. The object is to provide a waste wire treatment method characterized by the above.

【0007】本発明の第2の課題解決手段は、屑線を固
定した状態でこの屑線の被覆内からコアをコア押出し棒
によって押し出すと共に被覆を切り割りして被覆を解体
すると共にこの被覆をコアから分離することを特徴とす
る屑線処理方法を提供することにある。
A second means for solving the problems of the present invention is to extrude the core from inside the coating of the waste wire with the core extruding rod in the state where the waste wire is fixed, and to disassemble the coating by cutting the coating and to remove the coating from the core. Another object of the present invention is to provide a waste wire treatment method characterized in that

【0008】[0008]

【作用】このように、屑線を固定し、この屑線の被覆か
らコアをコア押出し棒で押し出すと、コアは屑線の軸線
方向の前方に押されて回収され、被覆はそのまま落下す
るので、コアと被覆とは混合することなく相互に分離さ
れた状態で回収され、また短尺の屑線でもコアと被覆と
容易に分離した状態で回収することができる。
As described above, when the scrap wire is fixed and the core is pushed out from the coating of the scrap wire by the core pushing rod, the core is pushed forward in the axial direction of the scrap wire and is collected, and the coating falls as it is. The core and the coating can be collected in a state of being separated from each other without being mixed, and even a short scrap wire can be easily collected in a state of being separated from the core and the coating.

【0009】更に、このコア押出し棒でコアを押し出す
と共に被覆を切り割すると、被覆の切り割りによってコ
ア押出し棒の前進が容易になるので、比較的長い屑線で
もコア押出し棒によるコアの押し出しを行うことができ
る上に被覆も解体されるので、その後の処理が一層容易
となる。
Further, when the core is extruded by this core extruding rod and the coating is cut, the core extruding rod can be easily moved forward by the slit of the coating, so that the core extruding rod extrudes the core even with a relatively long scrap wire. In addition to being able to do so, the coating is also dismantled, making subsequent processing even easier.

【0010】[0010]

【実施例】本発明の実施例を図面を参照して詳細にのべ
ると、図1及び図2は本発明に係る屑線処理方法を実施
する装置20を概略的に示し、この方法で処理すべき屑
線10は、図示の実施例では、メッセンジャワイヤ付き
の自己支持型ケーブルであるのが示され、この屑線10
は、適宜の方法で500mm以下の長さ、例えば約30
0mmの長さに短尺切りされた多数の短尺物10Aの形
態で適宜の形態のコンベヤ22上を整列して順次屑線処
理装置20に送給される。この屑線10は、例えば、図
2に示すように、コア12とメッセンジャワイヤ14と
これらを一括して絶縁被覆する被覆16とから成ってい
る。尚、図中符号16Aはコア12の被覆部分、また符
号16Bはメッセンジャワイヤ14の被覆部分である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings in detail, an embodiment of the present invention will be described with reference to FIGS. 1 and 2 which schematically show an apparatus 20 for carrying out the method for treating waste wire according to the present invention. Power scrap 10 is shown in the illustrated embodiment to be a self-supporting cable with messenger wires.
Is a length of 500 mm or less, for example, about 30 by an appropriate method.
A large number of short pieces 10A cut into a length of 0 mm are aligned on a conveyor 22 of an appropriate shape and sequentially fed to the waste wire treatment apparatus 20. As shown in FIG. 2, for example, the scrap wire 10 is composed of a core 12, a messenger wire 14, and a coating 16 that collectively insulates them. In the figure, reference numeral 16A is a coating portion of the core 12, and reference numeral 16B is a coating portion of the messenger wire 14.

【0011】屑線処理装置20は、架台24と、この架
台24の上にコンベヤ22に整列して設けられて屑線1
0を把持して固定するクランプ26と、同じく架台24
上でクランプ26の後方にクランプ26によって固定さ
れた屑線10のコア12に整列するように設けられたコ
ア押出し棒28とから成っている。
The waste wire processing apparatus 20 is provided on the pedestal 24 and on the pedestal 24 in line with the conveyor 22.
Clamp 26 for gripping and fixing 0 and mount 24
It consists of a core push-out rod 28 provided above the clamp 26 and aligned with the core 12 of the scrap wire 10 fixed by the clamp 26.

【0012】クランプ26は、図2に詳細に示すよう
に、架台24上に設けられた下部クランプ片26Bと上
部クランプ片26Aとから成り、上部クランプ片26A
は、ブラケット32を介して支持されたエアシリンダ3
4に取付けられ、またコア押出し棒28は、架台24上
に支持されたエアシリンダ36に取付けられている。こ
れらのエアシリンダ34、36は、図示しないエア制御
系統によって駆動制御される。
As shown in detail in FIG. 2, the clamp 26 comprises a lower clamp piece 26B and an upper clamp piece 26A provided on a pedestal 24, and the upper clamp piece 26A.
Is an air cylinder 3 supported via a bracket 32.
4 and the core push rod 28 is attached to an air cylinder 36 supported on the pedestal 24. These air cylinders 34 and 36 are drive-controlled by an air control system (not shown).

【0013】コア押出し棒28は、その先端に上下反対
方向に突出する1対の切割り刃30、30’を有し、こ
れらの切割り刃30、30’は、コア押出し棒28の前
進につれて屑線10の被覆部分16Aを切割りする。
The core push-out rod 28 has a pair of cutting blades 30 and 30 'projecting vertically opposite to each other at the tip thereof, and these cutting blades 30 and 30' are advanced as the core push-out rod 28 is advanced. The covering portion 16A of the scrap wire 10 is cut.

【0014】次に、本発明の方法を図3を参照して詳細
にのべると、屑線10は、短尺である場合にはそのま
ま、また長尺である場合には図示しない短尺切り手段に
よって500mm以下の長さに短尺切りされ、その短尺
物10Aは、コンベヤ22上を矢印方向に間欠的に搬送
される。図1及び図2に示すように、最先の短尺物10
Aは、そのメッセンジャワイヤ14を有する部分がクラ
ンプ26の下部クランプ片26Bの上に乗るように繰り
込まれ、エアシリンダ34の伸長によって上部クランプ
片26Aが下降してメッセンジャワイヤ14の被覆部分
16Bを下部クランプ片26Bに押し付けて固定する。
この状態では、コア12がコア押出し棒28に整列す
る。
Next, referring to FIG. 3, the method of the present invention will be described in detail. If the scrap wire 10 has a short length, the scrap wire 10 is used as it is. Short pieces 10A are cut into the following lengths, and the short pieces 10A are intermittently conveyed on the conveyor 22 in the arrow direction. As shown in FIG. 1 and FIG.
A is retracted so that the portion having the messenger wire 14 rides on the lower clamp piece 26B of the clamp 26, and the extension of the air cylinder 34 lowers the upper clamp piece 26A to lower the covering portion 16B of the messenger wire 14. The lower clamp piece 26B is pressed and fixed.
In this state, the core 12 is aligned with the core push rod 28.

【0015】その後、図3の(A)に示すように、エア
シリンダ36が伸長してコア押出し棒28が前進し、こ
のコア押出し棒28の先端面が短尺物10Aの後端面に
衝合し、図3の(B)に示すように、クランプ26によ
って固定されている被覆16の被覆部分16A内からコ
ア12を押すと同時にこのコア押出し棒28の先端に設
けられた切割り刃30、30’が被覆部分16Aを切割
りする。
After that, as shown in FIG. 3A, the air cylinder 36 extends and the core pushing rod 28 advances, and the tip end face of the core pushing rod 28 abuts the rear end face of the short object 10A. As shown in FIG. 3B, the core 12 is pushed from within the covering portion 16A of the covering 16 fixed by the clamp 26, and at the same time, the cutting blades 30 and 30 provided at the tip of the core pushing rod 28. 'Cuts the coated portion 16A.

【0016】このようにして、コア押出し棒28の先端
が短尺物10Aの被覆部分16Aの前端端を通過する
と、図3の(B)に示すように、コア12はこの被覆部
分16Aからその前方に完全に押出され、また被覆部分
16Aは、切割り刃30、30’によって2つ割りされ
てクランプ26によって固定されていない部分が落下す
る。従って、コア12は、被覆16の前方にこの被覆1
6とは完全に分離された状態で回収される。
In this way, when the tip of the core push-out rod 28 passes through the front end of the covering portion 16A of the short object 10A, the core 12 moves from the covering portion 16A to the front thereof, as shown in FIG. 3B. Completely, the coated portion 16A is divided into two by the cutting blades 30 and 30 ', and the portion not fixed by the clamp 26 falls. Therefore, the core 12 is provided with the coating 1 in front of the coating 16.
It is recovered in a state of being completely separated from 6.

【0017】尚、上記実施例では、屑線10は、自己支
持型ケーブルである場合を示したが、メッセンジャワイ
ヤを有しない通常の絶縁ケーブルであってもよい。この
場合、クランプ26によって把持するために、屑線10
の短尺物にハッカーを付けてこのハッカーを介してクラ
ンプ26によって短尺物を固定してもよい。
Although the waste wire 10 is a self-supporting cable in the above embodiment, it may be a normal insulated cable having no messenger wire. In this case, the scrap wire 10 is to be gripped by the clamp 26.
A hacker may be attached to the short object and the short object may be fixed by the clamp 26 via the hacker.

【0018】また、上記実施例では、コア押出し棒28
に切割り刃30、30’を取付けてコアの押出しと同時
に被覆を切割りしているので、屑線10が比較的長い場
合でも、コア押出し棒28が被覆内を前進し易く、コア
の押し出しを容易に行うことができて有利である。ま
た、被覆16が切り割されて解体されるため、例えばこ
の被覆がアルミニウムラミネート材料から成っている場
合に、その後、この被覆電線を加熱処理してプラスチッ
ク材料を軟化させ又は接着力を弱めてプラスチックを剥
れ易くしてこのアルミニウムを回収することができるの
で有利となるが、屑線が比較的短い場合や被覆が円筒形
のままで解体する必要がない場合には、コアを押出すの
みであってもよい。
Further, in the above embodiment, the core extruding bar 28
Since the cutting blades 30 and 30 ′ are attached to the core to cut the coating at the same time when the core is extruded, even when the scrap wire 10 is relatively long, the core pushing rod 28 easily advances in the coating, and the core is extruded. Is advantageous because it can be performed easily. Further, since the coating 16 is cut and disassembled, for example, when the coating is made of an aluminum laminate material, the coated electric wire is then heat-treated to soften the plastic material or weaken the adhesive force. This is advantageous because the aluminum can be easily removed and the aluminum can be recovered. It may be.

【0019】[0019]

【発明の効果】本発明によれば、上記のように、屑線を
固定し、この屑線の被覆からコアをコア押出し棒で押し
出すので、コアは屑線の軸線方向の前方に押されて回収
され、被覆はそのまま落下してコアと被覆とは別個の回
収位置で回収されて両者が混合することがなく、従って
コアと被覆とをそれぞれの誘導手段にセットすることな
く相互に分離された状態で回収されるから、作業開始前
の準備作業が不要であって高い作業性で屑線を処理する
ことができ、また短尺の屑線でもコアと被覆と容易に分
離した状態で回収することができる実益がある。
According to the present invention, as described above, the scrap wire is fixed and the core is extruded from the coating of the scrap wire by the core pushing rod, so that the core is pushed forward in the axial direction of the scrap wire. It was recovered, the coating dropped as it was, and the core and the coating were collected in a separate collection position and were not mixed with each other. Therefore, the core and the coating were separated from each other without setting in the respective guiding means. Since it is collected in a state, preparatory work before the start of work is not required, and waste wire can be processed with high workability, and even short waste wire can be collected in a state where it is easily separated from the core and the coating. There is a real benefit that can be achieved.

【0020】また、コア押出し棒でコアを押し出すと共
に被覆を切り割すると、被覆の切り割りによってコア押
出し棒の前進が容易になるので、比較的長い屑線でもコ
ア押出し棒によるコアの押し出しを行うことができる上
に被覆が解体されるので、特に被覆が金属ラミネート材
料から成っている場合等に金属を回収する処理等が一層
容易となる実益がある。
When the core is extruded by the core extruding rod and the coating is cut into pieces, the core extruding rod can be easily moved forward by the slitting of the coating. Moreover, since the coating can be dismantled and the coating is dismantled, there is a practical advantage that the process of recovering the metal and the like becomes easier, especially when the coating is made of a metal laminate material.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る屑線処理方法に用いられる装置の
概略斜視図である。
FIG. 1 is a schematic perspective view of an apparatus used in a waste wire treatment method according to the present invention.

【図2】図1の装置の要部の正面図である。FIG. 2 is a front view of a main part of the apparatus shown in FIG.

【図3】本発明の方法を工程順に示す説明図である。FIG. 3 is an explanatory view showing the method of the present invention in process order.

【符号の説明】[Explanation of symbols]

10 屑線 10A 短尺物 12 導体コア 14 メッセンジャワイヤ 16 被覆 16A 被覆部分 16B 被覆部分 20 屑線処理装置 22 コンベヤ 24 架台 26 クランプ 26A 上部クランプ片 26B 下部クランプ片 28 コア押出し棒 30 切割り刃 30’ 切割り刃 10 scrap wire 10A short object 12 conductor core 14 messenger wire 16 coating 16A coating portion 16B coating portion 20 scrap wire processing device 22 conveyor 24 frame 26 clamp 26A upper clamp piece 26B lower clamp piece 28 core extrusion rod 30 cutting blade 30 'cutting Blade

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 屑線を固定した状態でこの屑線の被覆内
からコアをコア押出し棒によって押し出して前記被覆と
コアとを分離することを特徴とする屑線処理方法。
1. A method for treating waste wire, wherein a core is extruded from the inside of the coating of the waste wire with a core pushing rod while the waste wire is fixed to separate the coating and the core.
【請求項2】 屑線を固定した状態でこの屑線の被覆内
からコアをコア押出し棒によって押し出すと共に前記被
覆を切り割りして前記被覆を解体すると共に前記被覆を
前記コアから分離することを特徴とする屑線処理方法。
2. A method in which a core is extruded from the inside of the coating of the waste wire by a core pushing rod while the waste wire is fixed, and the coating is cut to disassemble the coating and the coating is separated from the core. Scrap wire treatment method.
JP32749992A 1992-11-13 1992-11-13 Chip wire treating method Pending JPH06162844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32749992A JPH06162844A (en) 1992-11-13 1992-11-13 Chip wire treating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32749992A JPH06162844A (en) 1992-11-13 1992-11-13 Chip wire treating method

Publications (1)

Publication Number Publication Date
JPH06162844A true JPH06162844A (en) 1994-06-10

Family

ID=18199831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32749992A Pending JPH06162844A (en) 1992-11-13 1992-11-13 Chip wire treating method

Country Status (1)

Country Link
JP (1) JPH06162844A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200449859Y1 (en) * 2008-09-25 2010-08-16 한국전력공사 Cable conductor extraction equipment
JP2012222910A (en) * 2011-04-06 2012-11-12 Hitachi Plant Technologies Ltd Volume reduction method for twisted cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200449859Y1 (en) * 2008-09-25 2010-08-16 한국전력공사 Cable conductor extraction equipment
JP2012222910A (en) * 2011-04-06 2012-11-12 Hitachi Plant Technologies Ltd Volume reduction method for twisted cable

Similar Documents

Publication Publication Date Title
CA2054445C (en) Multiple blade set strip apparatus for cable and wire
US4091695A (en) Wire preparation machine with variable insulation stripping mechanism
US5282311A (en) Harness producing apparatus and a harness producing method
JPH02278679A (en) Cutting method of shield ribbon cable in automatic pressure-welding machine and apparatus thereof
EP0932164A3 (en) Taping device
CN109586213A (en) A kind of power cable automatic peeling shear
JP2002262427A (en) Braid-cutting device for shielding wire and braid-cutting method
DE3103311A1 (en) METHOD AND DEVICE FOR DETACHING PLASTIC AND / OR RUBBER MATERIAL FROM METAL MATERIAL OR THE LIKE.
JPH06162844A (en) Chip wire treating method
EP0274240A3 (en) Wire processing system
ES2001471A6 (en) Manufacture of metal extrusions.
JPH03214515A (en) Terminal treatment method for wire material
KR20160010880A (en) Peeling apparatus
JP2836726B2 (en) Wire pushing mechanism and wire pushing method of wire pressure welding device
ES487739A1 (en) Method of and apparatus for removing front and rear segments of rolled wire
EP0860912A3 (en) Wire cutting and stripping mechanism
JP3639926B2 (en) Wire rod end forming device
JP2000175328A (en) Strippbr for covered electric wire
GB2021987A (en) Apparatus for producing sets of identically sized wire leads
JPH0530621A (en) Cut making method for intermediate wire stripper
JP3712165B2 (en) Tape loss processing apparatus and tape loss processing method
GB2021988A (en) Wire lead clamping mechanism for wire lead production apparatus
JPS63148584A (en) Terminal crimper
JPH0438107A (en) Cut groove forming method for intermediate wire stripper
DE3412044A1 (en) Device for cutting cables to length and stripping them (cable splitting machine)