DE1918467B2

DE1918467B2 - Insulated cable stripping tool - has fixed knife blades and rotary milling cutters adjustable to range of cable sizes and insulation thicknesses

Info

Publication number: DE1918467B2
Application number: DE19691918467
Authority: DE
Inventors: Anmelder Gleich
Original assignee: Individual
Current assignee: Individual
Priority date: 1969-04-11
Filing date: 1969-04-11
Publication date: 1978-02-23
Also published as: DE1918467C3; DE1918467A1

Abstract

The screening is stripped from the cable (5) by the combined action of stationary knife blades (4) and associated rotating cutting wheels (3). As the cable is fed between the blades the wheels pick up the screening and cut it by pressing against the cutting edge of the two knives. The aperture between the two cutting assemblies (1, 2) is set by a hollow cone (6) through which the cable passes. The stripping machine can thus be adjusted to accommodate a range of cable diameters and screen thicknesses. The cable is fed through the assembly against the rotary milling cutter wheels (3) which are rotated by a separate drive typically acting through shafts with universal joints and worm gears.

Description

F i g. 2 — ein grundsätzliches kinematisches Schema der Vorrichtung.F i g. 2 - a basic kinematic scheme of the device.

Die Vorrichtung zur Entfernung des Abschirmclementes besitzt einen Schneidkopf, der zwei diametral angeordnete Schneideinheiten 1 und 2 (Fig. 1) enthält. Jede von den Einheiten besteht aus einem sich drehenden Walzenfräser 3 und einem bezüglich dieses Walzenfräsers unbeweglichen Messer 4. Jeder der Walzenfräser 3 dreht sich entgegen der Bewegung der zu bearbeitenden Leitung 5, die zwischen den Einheiten 1 und 2 (die Leitungsbewegung ist durch einen Pfeil A angegeben) verläuft. Jedes Paar Walzenfräser-Messer bildet eine Schere, die das Abschirmelement abschneidet. Zwischen jedem Paar Walzenfräser-Messer besteht ein Spalt, dessen Größe von einer Kegelhülse 6 geregelt wird.The device for removing the shielding element has a cutting head which contains two diametrically arranged cutting units 1 and 2 (FIG. 1). Each of the units consists of a rotating cylindrical milling cutter 3, and a with respect to this rolling mill stationary knife 4. Each of the milling cutter 3 rotates counter to the movement of the to be processed line 5, which is the line of movement between the units 1 and 2 (indicated by an arrow A specified) runs. Each pair of milling cutter blades form a pair of scissors that cut off the shielding element. Between each pair of milling cutter knives there is a gap, the size of which is regulated by a conical sleeve 6.

Diese Regelung gewährleistet die Bearbeitung von Leitungen verschiedenen Querschnitts und ermöglicht die Entfernung von Abschirmungen verschiedener Dichte.This regulation ensures the processing of lines of different cross-sections and enables the removal of shields of various densities.

Die Messer 4 werden an die Leitung 5 durch eine Feder 7 angedrückt.The knives 4 are pressed against the line 5 by a spring 7.

Die Walzenfräser 3 erhalten ihre Drehbewegung von einem unbeweglichen Zahnrad 8 (Fig. 2) mit Hilfe von Zahnrädern 9, die auf Wellen 10 starr sitzen, und von Zahngetrieben 11 und 12, von denen das Zahnrad 11 auf der Welle 10 befestigt ist.The cylindrical milling cutters 3 receive their rotary motion from an immovable gear wheel 8 (FIG. 2) with the aid of Gears 9, which sit rigidly on shafts 10, and gear drives 11 and 12, of which the gear 11 is on the shaft 10 is attached.

Jede von den Schneideinheiten 1 und 2 dreht sich um die Leitung 5 angetrieben von einer Antriebswelle 13, mit der die Zahnräder 9 durch ein Kreuzstück 14 verbunden sind.Each of the cutting units 1 and 2 rotates around the line 5 driven by a drive shaft 13, with which the gears 9 are connected by a cross piece 14.

Zur Regelung der Länge des Endes der m bearbeitenden Leitung ist in der Einrichtung eine Scheibe 15 mit einem Anschlag 16 versehen.To regulate the length of the end of the m A disk 15 with a stop 16 is provided in the device for the processing line.

Die Einrichtung arbeitet in folgender Weise:The facility works in the following way:

Nachdem durch die Kegelhülse 6 der Durchmesser der zu bearbeitenden Leitung 5 und durch den Anschlag 16 die erforderliche Länge des Endes dieser Leitung eingestellt sind, wird zur Entfernung der Abschirmung ein Antrieb (nicht gezeigt) eingeschaltet und die Leitung 5 in die öffnung der Hülse 6 eingeführt. Die Antriebswelle 13 dreht das Kreuzstück 14 zusammen mit den Zahnrädern 9. Infolgedessen walzen sich die letzteren an dem unbeweglichen Zahnrad 8 ab, wodurch sie die Wellen 10 in Drehung versetzen. Die Zahnräder 11, die auf den Wellen 10 sitzen, drehen sich und drehen über die Zahnräder 12 die Walzenfräser 3 entgegen der Bewegung der Leitung 5. Bei ihrem Drehen reißen die Walzenfräser 3 die Abschirmung hoch, die, da sie zwischen die Fräserzähne und die unbeweglichen Messer 4 gelangt, abgeschnitten wird. Infolge der Drehung der Schneideinheiten 1 und 2 um die Leitung 5 erfolgt das Abschneiden der Abschirmung am ganzen Kreisumfang.After the diameter of the line to be processed 5 through the conical sleeve 6 and through the stop 16 the required length of the end of this line is set to remove the shield a drive (not shown) is switched on and the line 5 is inserted into the opening of the sleeve 6. the Drive shaft 13 rotates the cross piece 14 together with the gears 9. As a result, the roll the latter on the stationary gear 8, whereby they set the shafts 10 in rotation. The gears 11, which sit on the shafts 10, spin and spin Via the gears 12, the milling cutters 3 counter to the movement of the line 5. When they rotate, they tear Milling cutter 3 the shielding high, as it is between the cutter teeth and the immovable Knife 4 arrives, is cut off. As a result of the rotation of the cutting units 1 and 2 around the line 5 the shielding is cut off along the entire circumference.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

Claim:

Apparatus for removing the shield from the ends of lines or cables comprising a cutting head rotatable about the line or cable longitudinal axis made of two diametrically opposed cutting heads Cutting units with cylindrical milling cutters arranged transversely to the line or cable longitudinal axis, between which the line or cable iu can be moved through and the opposite to the movement of line or cable around their respective own axis can be rotated, and parts of the shield can be removed by the cutting units are characterized in that both '5 cutting units (1, 2) each have an additional knife (4) included, the cutting edge of which is parallel to the axis of the associated cylindrical milling cutter (3) in Direction of movement of the line or cable (5) is sliding on the shield and the Distance between the cutting edge of the plain milling cutter (3) and the cutting edge of the knife (4) approximately is equal to the wall thickness of the shield.

2525th

The invention relates to a device for removing the shield from the ends of lines or cables, containing a cutting head of two that can be rotated about the line or cable longitudinal axis diametrically opposed cutting units with arranged transversely to the line or cable longitudinal axis Roller milling cutters, between which the line or cable can be moved and the opposite are rotatable about their own axis for moving the line or cable and thereby from the Cutting units parts of the shield can be removed.

The device can be used in the radio, electronic and other electrotechnical industries as well as in the communications equipment producing industry, or also in radio and electrical installation or repair work can be used.

In DE-PS 6 30 212 a cable stripping machine for power and manual operation for the removal of the Insulation of single-core cables or from the cores of multi-core cables described, in which a Fixed cable end rotating, with radially adjustable knife or rotating around its own axis Support provided by milling drums automatically, pushed forward step by step in the direction of the cable axis like this will. Cables with lead or iron sheath take the place of those connected to the support Knife drums appropriately trained milling cutters. The known device thus has a cutting head on, which has two diametrically opposite cutting devices, between which the line or the cable is passed through and each of these cutting units includes knives or cutters. the Knives or milling can be contrary to the direction of movement of the line to be processed or ω of the cable and at the same time be moved around the wire or cable. More knives, whose cutting edge is parallel to the axis of the associated milling cutter in the direction of movement of the line whose shielding are arranged sliding, are not provided in ^ the known device and for the The purposes stated there are obviously not necessary either.

In US-PS 23 66 271 a device is described which is intended to cut open a shielding braid in the longitudinal direction of the line in order to completely remove it from the line or the cable or to replace it with something else. The device contains a cutting device through which the line is passed and which contains a side milling cutter which works together with a long, tapered cutting blade which is advanced parallel to the line axis into the shielding braid, so that the shielding braid is cut lengthways. The cutting means between the disc cutter and the cutting blade is parallel to the axis of the conduit, thus allowing only an axially parallel opening of the shield, while a transversely thereto arranged section means ¹ nor in view of the object of the known device is provided useful. However, cutting transversely to the axis of the line or the cable is necessary if one particularly wants to free the ends of a line or a cable from the shielding.

There are also devices for removing the shield from the line ends are known, the one Cutting head in the form of an annular die with the cutting edge along the circumference of the opening in the die and have a tube attachment. The pipe attachment tears open a cone at its end and is used as an upper punch with the help of which the braided shield is hacked open (see SU-PS 126 534). This well-known The installation requires that the end of the line has been processed by hand in order to create an annular gap between the wire insulation and the shield for the introduction of the upper punch into the gap. In this case, it is not possible in lines with increased filling density of the shielding braid, one sufficient to obtain a large annular gap. In addition, a set of individual parts must be used for each type of pipe size (Upper punch and die) have.

The present invention is based on the object of the device specified at the outset To be designed in such a way that it can also be used with a shield that consists of a shielding braid, so that the ends of the lines and cables at any density of shielding or at any Cross-section of a cable can be exposed without their prior preparation.

In order to achieve this object, the device of the type specified at the outset is characterized according to the invention characterized in that both cutting units each additionally contain a knife, the cutting edge of which in each case parallel to the axis of the associated milling cutter in the direction of movement of the line or cable whose shield is sliding and the distance between the cutting edge of the cylindrical milling cutter and the Cutting edge of the knife is approximately equal to the wall thickness of the shield.

The knives, together with the cylindrical milling cutters, each form a kind of scissors that provide the shield shears, with the cutting units rotating around the line or cable to be processed.

The invention is described below in a detailed description of an exemplary embodiment explained with reference to the drawings; in the drawings shows

F i g. 1 - the cutting units of the sc'incid head of the Device in longitudinal section;