US20050224629A1 - Cable guide for cable insulation stripping machines - Google Patents

Cable guide for cable insulation stripping machines Download PDF

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Publication number
US20050224629A1
US20050224629A1 US10/515,410 US51541005A US2005224629A1 US 20050224629 A1 US20050224629 A1 US 20050224629A1 US 51541005 A US51541005 A US 51541005A US 2005224629 A1 US2005224629 A1 US 2005224629A1
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US
United States
Prior art keywords
guide
passage
cable
adjustable
cable guide
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.)
Abandoned
Application number
US10/515,410
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English (en)
Inventor
Martin Burri
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.)
Schleuniger Holding AG
Original Assignee
Schleuniger Holding AG
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 Schleuniger Holding AG filed Critical Schleuniger Holding AG
Assigned to SCHLEUNIGER HOLDING AG reassignment SCHLEUNIGER HOLDING AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHLOSSER, DANIEL, BURRI, MARTIN
Publication of US20050224629A1 publication Critical patent/US20050224629A1/en
Abandoned legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
    • H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
    • H02G1/1248—Machines

Definitions

  • the invention relates to a cable guide for cable insulation stripping machines.
  • Cable insulation stripping machines are frequently designed as continuously operating machines processing continuous cables and provide—before, after and between drive means and cable processing devices—guides for the cable to be processed. These guides are generally formed by tubes which have partly funnel-shaped infeed regions.
  • these tubes are pivotable (longer guide tube in PS 9500 Powerstrip) or displaceable (shorter guide tubes in PS 9500 Powerstrip) or are fixed, so that cable sections can optionally be fed to a processing device or in a direction pointing away from the processing device, or that the guides are removable from their operating position, or that guides are always arranged in the same place.
  • Such a revolver head having cable guides has also become known in the case of insulation stripping machines MP 8015 of the Applicant.
  • the cable guide used there is not employed for continuous cable processing but for an insulation stripping device by means of which in each case insulation can be stripped only from end regions of individual cable sections.
  • the known solutions can be used only in association with existing, stepped guide tube diameters, so that cable diameters which are between the steps of the individual guide tubes can be guided only with greater difficulty than cable diameters which exactly fit the step present.
  • U.S. Pat. No. 4,489,490 describes a manual device for cable slitting and insulation stripping, in which a prismatic support which centres the cable is provided.
  • a back-stop which is adjustable in height and presses the cable against the prismatic support and thus centres it laterally in one direction is present opposite the prismatic support.
  • concentric guidance is not possible since the cable lies at a greater or lesser depth in the prismatic support depending on the cable diameter.
  • U.S. Pat. No. 4,181,047 describes a cable insulation stripping device having a total of four guide rollers which are arranged in pairs one behind the other and, viewed in cross-section, form a rectangular guide channel (cf. FIG. 3 ), which, however, is open in each case on two sides and cannot therefore perform complete guidance and support of the cable on all sides.
  • U.S. Pat. No. 5,979,286 describes a two-sided guide in which two elongated guide bars can be displaced relative to one another by means of threaded spindles. This design, too, therefore does not permit guidance on all sides and also does not provide continuous centring of the cable since the centre of the cable is displaced upwards or downwards depending on the cable diameter.
  • U.S. Pat. No. 5,820,008 shows, in FIGS. 7 and 8 , a guide which—controlled by means of a cone—permits the displacement of two jaws having guide surfaces ( 228 and 248 ). It is true that this permits closing of the jaws onto a small cable diameter; however, the centre of the cable is likewise displaced depending on the cable diameter. Moreover, this design, like that described directly above, lacks true concentric guidance since there are no symmetrical support surfaces for a cable.
  • a second object, to be achieved simultaneously, is to permit continuous adaptation to different cable diameters.
  • the two objects are achieved by providing a system having at least one tube whose internal diameter can be changed by changing the tube geometry at least approximately symmetrically relative to the longitudinal axis of the tube.
  • Such a change of geometries can be effected, for example, by a segment-like design whose segments can be adjusted relative to one another so that the internal tube diameter changes continuously. It can also be effected if the tube wall is made flexible and can be stretched or compressed.
  • the tube may be designed, for example, as a spring which is spiral in cross-section and can be adjusted in its internal diameter by the action of a force from outside.
  • a specific embodiment of the invention envisages that the segments are formed from elongated, rigid plates which are guided relative to one another, similarly to an iris diaphragm in a camera or similarly to the centring jaws in the rotary box of the Scheulinger model PS 9500 Powerstrip machine, or in models MP 8015 or JS 8300.
  • the centring jaws of the rotary box and those of the JS 8300 are stationary, whereas the centring jaws of model MP 8015 rotate with the knives.
  • elongated plates are several times longer than the maximum adjustable diameter of the guide tube.
  • spiral spring or a spiral spring body which is composed of spiral spring segments and can be operated with diameter variation so that the inner end or ends of the spiral spring or of the spiral spring segments rests or rest against the inner wall of the spiral spring or against the inner wall of an adjacent spiral spring segment, or slide along this during the adjustment.
  • Suitable material for the spiral spring are conventional spring metals, for example spring steels, or plastics, in particular fibre-reinforced plastics.
  • segment plate solution is a robust, rigid design, while the advantage of the spiral spring or spiral spring segment construction entails less mechanical complexity.
  • a seal between tube segments sliding against one another may be advantageous for certain cable types (in particular for fine wires), in order to prevent jamming of such wires.
  • the adjustment is effected by means of a motor—in particular with electronic actuation—so that an operator or a sensor-controlled controller sets the internal tube diameter required in each case.
  • a motor in particular with electronic actuation—so that an operator or a sensor-controlled controller sets the internal tube diameter required in each case.
  • the cable information either detected by sensors or input by programming—automatically sets the correct diameter via the machine control are particularly advantageous.
  • FIG. 1 shows a version of a universal guide in exploded view.
  • FIG. 1 a further shows the universal guide of FIG. 1 in the assembled state.
  • FIG. 2 shows another version of the universal guide in exploded view.
  • FIG. 2 a further shows the universal guide of FIG. 2 in the assembled state.
  • FIG. 3 shows yet another version of the universal guide in exploded view.
  • FIG. 3 a further shows the universal guide of FIG. 3 in the assembled state.
  • FIG. 4 shows a short guide segment
  • FIG. 5 shows a long guide segment
  • FIG. 6 shows another version of the adjustable guide.
  • FIG. 7 shows a further version of the adjustable guide.
  • FIG. 8 illustrates another version of the adjustable guide.
  • FIG. 9 shows a further version of the adjustable guide.
  • FIG. 10 is a perspective view of another version of the adjustable guide.
  • FIG. 11 further shows the adjustable guide of FIG. 10 in an exploded view.
  • FIG. 1 shows the design of a universal guide in an exploded view, in which, starting from a cover 3 , a multi-part guide segment body 4 , which is held by a guide holder 1 , is shown. It is evident here that opening or closing of guide segments 17 is effected by means of guide slots 18 in the cover 3 via the straight pins 12 and 13 acting as bearing elements as shown.
  • the guide segments 17 are connected to the respective coordinated parts of the guide segment body 4 , and are optionally formed integrally therewith.
  • Per partial guide segment body 4 , straight pins 12 , 13 are likewise firmly connected to it.
  • the parts of the guide segment body 4 provide mutual support or slide past one another during adjustment.
  • Socket-head cap screws 11 clamp the cover 3 to the guide holder 1 and a scale-bearing cover 5 which is connected to a casing 19 .
  • the casing 19 and/or the cover 3 or the guide segments 17 can be provided at their end, for example, with a funnel-shaped conical infeed region.
  • the scale-bearing cover 5 has the task of making it possible for a user to set a chosen tube diameter setting.
  • Spring-loaded thrust pieces 8 which are secured by hexagon nuts 14 lock the scale-bearing cover 5 relative to the cam plate 2 .
  • FIG. 1 a shows the universal guide according to the invention, as shown in FIG. 1 , in the assembled state.
  • FIG. 2 shows an embodiment of a universal guide which is distinguished by particularly short guide segments 17 a. Depending on requirements, it is fixed rigidly in position or is mounted before and after the knife head (in PS 9500 Powerstrip) so as to be vertically displaceable, analogously to the known vertically displaceable guides, which is not shown. However, it has no casing 19 , as shown in FIG. 1 .
  • FIG. 2 a shows the embodiment according to FIG. 2 in the assembled state.
  • FIG. 3 shows a variant of FIG. 1 in which the guide segments 17 b are designed to be particularly long and in which the entire guide head is pivotably held by a deflecting means 16 which acts as a support.
  • the deflecting means 16 is controlled, as known per se (i.e. pipe in PS Powerstrip 9500), by a suitable mechanism or by, for example, a motor, pneumatic or electromagnetic drive and is driven in such a way that the longitudinal axis of the universal guide is present on the one hand in the cable axis and is oblique thereto in the swivelled-out state.
  • the deflecting means is connected by means of metal retaining plates 20 and socket-head cap screws 15 to an extended retaining part 21 of the scale-bearing cover 5 .
  • FIG. 3 a showed the design according to FIG. 3 in the assembled state.
  • FIG. 4 shows a short guide segment 17 a in detail with its guide segment body 4 a and
  • FIG. 5 shows a long guide segment 17 b in combination with its guide segment body 4 b.
  • the length of the segments 17 may be a multiple of the adjustable cable diameter.
  • the actuation of the guide segments 17 , 17 a and 17 b is effected similarly to the actuation of those of the clamping or centring jaws of the Applicant's machines mentioned in the introductory part of the description and is described, for example, in U.S. Pat. No. 5,010,797. Details of the actuation, such as, for example, the drives, spring return travel, etc., and variants thereof can be derived or adopted without problems from the prior art by a person skilled in the art. The content of U.S. Pat. No. 5,010,797 is hereby incorporated by reference in the present Application text.
  • the pins 12 , 13 mentioned in the figures can therefore also be replaced, for example, by lever arms ( 31 and 32 ) from FIG.
  • FIG. 6 A version of the invention which is based on another principle is shown in FIG. 6 , in which spring-loaded segments 22 engage one another in such a way that they enclose a variable tube space and can be caused to perform a diameter reduction by pressure from outside (arrow A), but the segments expand again to a larger diameter on reduction of the pressure.
  • the pressure can be applied by rods, spindles or eccentric cams known per se, which are not shown here in detail.
  • the spiral spring segments 22 may be connected to rigid segment plates 17 and thus seal the segment plates 17 against one another.
  • FIG. 7 A further somewhat different principle is evident from FIG. 7 , in which a single elongated spiral spring 23 is used as a guide tube.
  • This spring 23 is designed so that it tends to open to the largest internal diameter.
  • the spiral spring 23 may have its internal diameter adjusted by the action of an outside force.
  • the spiral spring segments 22 or the elongated spiral spring 23 can be operated in such a way that the inner end or ends of the spring 23 or the segments 22 rests against the inner wall of the spiral spring 23 or rest against the inner wall of an adjacent spiral spring segment 22 or slides along said wall on adjustment.
  • the spiral spring segments 22 or the spiral spring 23 may be composed of conventional spring steels or of plastic, particularly fibre-reinforced plastic.
  • FIG. 8 A further version is shown schematically in FIG. 8 , in which a broad spring 24 serves as a guide tube and is based on the principle of a loop.
  • One end of the spring 25 passes through the other spring end 26 , through a slit so as to intermesh, the two ends being formed in a comb-like manner.
  • the diameter of the guide can thus be adjusted over wide ranges by a tensile force (arrow C) at the two spring ends 25 , 26 . If it is intended for the centre of the guide always to remain in the same position, the tensile force at both spring ends 25 and 26 must be applied symmetrically and a diameter reduction must additionally be compensated by a lateral displacement of the entire structure (transverse arrow D).
  • the tube wall is designed to be flexible and may be stretched or compressed.
  • FIG. 9 shows a further version of a radially adjustable cable guide.
  • This has three guide rollers 28 radially adjustable in the direction of the arrows “E” and guide plates 29 connected to said rollers.
  • the guide plates 29 preferably consist of elastic spring steel and are connected to the guide rollers, for example, by welding or riveting.
  • the radius of curvature R of the guide plates 29 corresponds approximately to half the diameter d of the smallest cable 27 to be held. In the case of larger cable diameters, the guide plates 29 can thus adapt in terms of the radius R to the external diameter of the cable.
  • the free ends of the guide plates 29 are rolled up or bent over in order to avoid damage to the surface of the cable by sharp edges.
  • FIG. 10 and FIG. 11 shown as an exploded diagram show a further possibility for an adjustable cable guide.
  • guide segments 34 are in each case mounted at both ends by means of journals 35 .
  • a toothed segment 33 having teeth is mounted on each of these guide segments.
  • the teeth of the toothed segment 33 engage from the inside a toothed ring 31 which is rotatably mounted in a housing 30 .
  • a pin 38 which is movable in a recess 36 in the housing 30 is fixed radially on the outside of the toothed ring 31 .
  • Two coaxial adjusting screws 39 are arranged in such a way that they pass through the housing 30 , their free ends coming to a stop loosely on one side each of the pin 38 .
  • the toothed ring 31 is rotated by means of the pin 38 .
  • This drives the displaceably mounted guide segments 34 by means of the toothed segments 33 .
  • the adjustment of displaceably mounted guide segments 34 may be effected by rotation of toothed ring 31 via teeth engaging therein, or toothed segments 33 of the guide segments 34 .
  • the size of the recess 36 in the housing 30 determines the maximum angle of rotation and hence the smallest and largest possible diameter of the cable guide.
  • Securing screws 40 serve for fixing the adjusting screws 39 .
  • All the guide segments 34 are arranged in a casing 37 .
  • a cover 32 which closes the housing 30 is fixed by means of hexagon socket head screws 41 .
  • a funnel-shaped, preferably conically tapering infeed region ( 19 a ) may be located upstream of the adjustable guide region in the several versions of the invention.
  • adjustment may be effected by a motor—in particular electronically—so that an operator or a sensor—controlled controller sets the respective required internal tube diameter.
  • a control may be provided, with the aid of which the cable information—either detected by sensors or input be programming—automatically sets the correct diameter.
  • the adjustment of the segments and/or of the elastic tube wall segments or tube wall elements may be effected by hydraulic or pneumatic actuators or by means of contact with a pressure medium.

Landscapes

  • Wire Processing (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Processing Of Terminals (AREA)
US10/515,410 2002-05-23 2003-05-22 Cable guide for cable insulation stripping machines Abandoned US20050224629A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH8682002 2002-05-23
CH20020868/02 2002-05-23
PCT/IB2003/001954 WO2003100936A1 (de) 2002-05-23 2003-05-22 Kabelführung für kabelabisoliermaschinen

Publications (1)

Publication Number Publication Date
US20050224629A1 true US20050224629A1 (en) 2005-10-13

Family

ID=29555528

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/515,410 Abandoned US20050224629A1 (en) 2002-05-23 2003-05-22 Cable guide for cable insulation stripping machines

Country Status (5)

Country Link
US (1) US20050224629A1 (de)
EP (1) EP1509981A1 (de)
JP (1) JP4118874B2 (de)
AU (1) AU2003232957A1 (de)
WO (1) WO2003100936A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7104090B2 (ja) * 2020-03-19 2022-07-20 矢崎総業株式会社 シース除去装置及びシース除去方法
CN112736780A (zh) * 2020-12-21 2021-04-30 深圳供电局有限公司 电缆终端头的绝缘护套拆卸工具
CN113708190B (zh) * 2021-04-30 2023-09-12 惠州市倍斯特电源科技有限公司 一种数据线加工用剥皮装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232629A (en) * 1960-07-01 1966-02-01 Edward F Obear Automatic gripping chuck
US4181047A (en) * 1978-01-25 1980-01-01 Ethyl Corporation Cable stripping apparatus
US4449298A (en) * 1981-07-22 1984-05-22 Siemens Aktiengesellschaft Hand-operated apparatus for peeling off the outer jacket layer of electric lines and cables
US4489490A (en) * 1982-05-20 1984-12-25 Ideal Industries, Inc. Cable stripper
US5820008A (en) * 1996-01-31 1998-10-13 The Whitaker Corporation Machine for processing electrical wires having improved wire guide
US5979286A (en) * 1993-02-11 1999-11-09 Burth; Donald J. Wire insulation stripping device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1534231A (fr) * 1967-08-11 1968-07-26 Int Standard Electric Corp Mécanisme pour centrer un câble
DE2049025A1 (de) * 1970-09-29 1972-04-06 Siemens Ag Fuhrungsmppel fur elektrische Kabel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232629A (en) * 1960-07-01 1966-02-01 Edward F Obear Automatic gripping chuck
US4181047A (en) * 1978-01-25 1980-01-01 Ethyl Corporation Cable stripping apparatus
US4449298A (en) * 1981-07-22 1984-05-22 Siemens Aktiengesellschaft Hand-operated apparatus for peeling off the outer jacket layer of electric lines and cables
US4489490A (en) * 1982-05-20 1984-12-25 Ideal Industries, Inc. Cable stripper
US5979286A (en) * 1993-02-11 1999-11-09 Burth; Donald J. Wire insulation stripping device
US5820008A (en) * 1996-01-31 1998-10-13 The Whitaker Corporation Machine for processing electrical wires having improved wire guide

Also Published As

Publication number Publication date
JP2005527175A (ja) 2005-09-08
WO2003100936A1 (de) 2003-12-04
EP1509981A1 (de) 2005-03-02
JP4118874B2 (ja) 2008-07-16
AU2003232957A1 (en) 2003-12-12

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Legal Events

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AS Assignment

Owner name: SCHLEUNIGER HOLDING AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BURRI, MARTIN;SCHLOSSER, DANIEL;REEL/FRAME:015685/0167;SIGNING DATES FROM 20050106 TO 20050110

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION