EP3182421A1 - Twisting of single lines - Google Patents

Abstract

A method is used for twisting individual lines (L1-L4), in which (a) the individual lines (L1-L4) are introduced at a first position in a fixing unit (2), (b) the individual lines (L1-L4) on one (c) the individual cables (L1-L4) are longitudinally displaceable in a twisting unit (7) between the first position and the second position, (d) the individual cables (1) are fastened to respective support elements (5) of a de-twisting unit (4); L1-L4) between the fixing unit (2) and the unthreading unit (4) are tensioned, (e) the individual wires (L1-L4) are twisted by means of a rotational movement (D1) of the twisting unit (7), the twisting unit (7) in a direction of movement is moved from the fixing unit to the unthreading unit, and (f) the unthreading unit (4) with the individual lines (L1-L4) performs a rectified rotational movement corresponding to the rotational movement (D1) of the twisting unit (7) such that the holder elements (5) with a common, collective rotational movement, which corresponds to the rotational movement of the twisting unit (7) to be rotated about a common axis of rotation and in addition the support members (5) are rotated even in opposite directions to the collective rotational movement. A twisting device (1) is also used for twisting individual lines (L1-L4). The invention is particularly applicable to a twisting of electrical cables to cable harnesses, especially in the field of vehicle construction, plant construction, etc.

Description

The invention relates to a method for twisting individual lines. The invention also relates to a twisting device. The invention is particularly applicable to twisting electrical wires into cable harnesses, particularly in the automotive field, e.g. for motor vehicles, ships or aircraft, but also for other areas such as white goods.

DE 101 07 670 B4 discloses a method of twisting at least two single wires to a twisted wire harness, comprising the steps of: passing the one end of a single wire through associated tensioning clamps in a cable retaining head, clamping the ends of wires passed through the tensioning clamps in respective jaws in a twisting head, subjecting the tensioning clamps in the cable retaining head with a holding pressure, which allows a pulling through of the individual lines through the tension clamps under friction, so that the individual lines are constantly pulled, moving the twisting head while maintaining the holding pressure until the individual lines are stretched to the desired length, turning the twisting head during the Method step, to a predetermined number of revolutions, loading the clamps in the cable holding head with a clamping pressure that is higher than the holding pressure, so that a secure clamping of the individual lines during the subsequent twisting is ensured, g) twisting the now clamped on both sides single lines to a twisted harness.

WO 98/06155 discloses a method for twisting at least two individual lines with the following steps: clamping the one line ends of individual lines deflected to a certain length into a separate entangling tension receptacle which is rotatable substantially parallel to a twist axis; Clamping the other line ends of the individual lines in each separate Verdrillspannaufnahme, which are arranged rotatably together about the Verdrillachse; Arranging a drillship between the substantially tensioned lines; and rotating the Verdrillspannaufnahmen together around the Verdrillachse and co-rotating the Entdrillspannaufnahmen each about the line axis of the respective lines. Furthermore it concerns WO 98/06155 a device for twisting at least two individual lines.

WO 2013/068990 A1 discloses a twisting device for twisting electrical or optical lines, such as wires, cables, bundles of lines, optical fibers, etc., having a base and a first relatively rotatable twisting head adapted to grip the lines to be twisted at their first ends wherein the twisting device comprises a second relatively rotatable base to the twisting head, which is arranged opposite to the first twisting head and is adapted to grip the lines to be twisted at their second, the first end opposite ends, and that the second twisting head in the opposite sense is rotatable to the first twisting head.

WO 2013/068990 A1 also relates to a method for twisting wires.

EP 1 032 095 B1 discloses a twisting device in which three pairs of conductors are simultaneously processed. The leading conductor ends are fed from a first pivoting unit for processing and assembly first machine. Then an extract carriage takes over the leading conductor ends and pulls the ladder to the desired length. A transfer module takes over the leading conductor ends and brings them to a twisting head. The trailing conductor ends are taken over by a second swiveling unit and fed to second machines for processing and assembly. A transfer module takes over the finished trailing conductor ends and transfers them to a holding module. The conductor pair located between the holding module and the twisting head is twisted with controlled tensile force and then passes into a tray. At the same time, the leading conductor ends of a pair of conductors are processed and equipped, an extended pair of conductors is processed, equipped and transferred, and a conductor pair is twisted.

From the US 5 020 576 A For example, there is known a method of twisting single wires around a central pipe. In this case, a propellant unit can be moved in a translatory manner relative to a rotating untwisting unit. The disadvantage of this, however, is that the lines can be damaged by twisting.

It is the object of the present invention to at least partially overcome the disadvantages of the prior art and, in particular, to provide a line-saving possibility for twisting individual lines.

This object is achieved according to the features of the independent claims. Preferred embodiments are in particular the dependent claims.

The object is achieved by a method for twisting a plurality, ie at least two, preferably three or four, of individual lines, in which in a step (a) the individual lines are introduced at a first position into a fixing unit, in a step (b ) the individual lines are fastened to a second position spaced apart from the first position in the line longitudinal direction in respective support elements of a de-twisting unit, in a step (c) the individual lines are inserted longitudinally displaceably into a twisting unit between the first position and the second position, in a step ( d) the individual lines between the fixing unit and the untwisting unit are tensioned, in a step (e) the individual lines are twisted by means of a rotary movement of the twisting unit, wherein the twisting unit is moved from the fixing unit to the untwisting unit, and (f) the untwisting unit with the individual wires one to the D rehdrehbewegung the twisting unit performs corresponding rotational movement. In this case, the support elements with a common or "collective" rotational movement, which thus corresponds to the totality of the support members of the rotational movement of the twisting unit, rotated about a common axis of rotation and additionally rotated the support members themselves in opposite directions to the collective rotational movement by means of the de-twisting unit. This ensures that the support elements of the Entdrillinheit are indeed rotated in space around a common axis of rotation, the angular orientation or rotational position of the individual support elements in space but remains the same. This can prevent the individual cables between the twisting unit and twisted the twisting unit itself by its length and thereby damaged.

This method has the advantage that a twisting of individual lines is particularly precise and easy on the cable feasible. In addition, the properties of the wiring harness can be varied in a simple manner, for example a line offset at one end of the twisted wiring harness and / or a lay length. Characterized in that in step (f), the untwisting unit with the individual lines performs a rotational movement corresponding to the rotation of the twisting unit, preferably the same direction, the individual lines are twisted together only between the fixing unit and the twisting unit, but not between the twisting unit and the de-twisting unit. Thus, a method of the twisting device is not hindered by the fixing unit in the direction of the untwisting unit, since the individual lines remain untwisted in the direction of travel of the twisting unit, ie from the direction of the fixing unit to the untwisting unit.

The individual lines may e.g. be electrical lines, for example, signal lines, as well as individual insulated wires or wires and / or optical cables such as glass fibers or glass fiber bundles, etc.

A twisting can be understood in particular to be a Gegenversverwinden or a helical winding around each other. The twisting of wires can also be referred to as stranding, especially in telecommunications.

The first position in step (a) can be understood as a position at an end region of the individual cables in the longitudinal direction of the cable, wherein respective free sections can remain free or non-tensionable. These free sections of the Single lines may have the same or a different length.

The introduction in step (a) may include an insertion and possibly also a pinching of the individual lines in the fixing unit. If the individual lines are only inserted into the fuser unit, the individual lines attached to the de-twisting unit can be pulled into the fuser unit and fastened to the fuser unit only when the second position is reached. Alternatively, the individual lines can already be attached to the fixing unit before the de-twisting unit reaches the second position.

The individual lines can be fastened to the de-twisting unit in step (b), in particular at their ends opposite the fixing unit. The fastening in step (b) may include or be pinching.

At least steps (a) to (c) can be carried out in any desired sequence and possibly also simultaneously.

The tensioning in step (d) can be achieved, for example, by moving apart from one another and / or one after the other from the fixing unit and the unthreading unit. The clamping can be done with a predetermined tension or clamping pressure. This can be metrologically monitored and controlled during twisting.

A "corresponding rotary movement" is understood to mean in particular a rotary movement which prevents the twisting of the individual lines between the twisting unit and the unthreading unit. A corresponding rotational movement can in particular a rotational movement in the same direction of rotation and with the substantially same rotational or angular velocity, ie a synchronous rotational movement denote.

It is an advantageous development that a direction of rotation of the twisting unit can be switched or adjusted. Accordingly, then also a direction of rotation of the untwisting unit can be adjusted.

It is still a development that a rotational speed and / or a travel speed of the twisting device is adjustable, in particular during a Verdrillvorgangs is changeable. Thus, advantageously, e.g. change an impact number, possibly along a twisted wiring harness.

It is an embodiment that for step (c) the individual lines - individually or in groups (for example in pairs) - are successively inserted, in particular inserted, in respective receptacles of a rotatable twisting element ("twisting rotor") of the twisting unit. This makes it particularly easy to bring the individual cables into the twisting unit. To twist the Verdrillrotor is rotated, forcing there still separate from each other individual lines to wrap behind the Verdrillrotor with each other.

It is still an embodiment that in step (b) the individual lines are clamped or clamped in the respective support elements of the untwisting unit.

It is a further embodiment that the individual lines on the de-twisting unit can be clamped and released by means of actuator elements (eg electric motor, pneumatic, hydraulic, etc.) that can be actuated. So a particularly simple clamping and solution of the individual lines can be achieved.

The object is also achieved by a twisting device, comprising a fixing unit with a plurality of fixing elements for fixing first end regions of respective individual lines, a de-twisting unit with holding elements for fixing respective individual lines, a twisting unit movable between the fixing unit and the de-twisting unit, comprising a rotatable twisting rotor with a plurality of separable ones Receiving areas for longitudinally displaceable receiving respective individual lines, wherein the fixing unit and / or the Entdrillinheit for tensioning the individual lines are movable relative to each other and the support members of the Entdrillinheit are rotatable together according to the Verdrillrotor.

The twisting device has the same advantages as the method and can be made analogous, and vice versa.

It is a further development that the holding elements of the untwisting unit are connected to a common rotary element. For example, they may be rotatably performed by respective feedthroughs of a gear so as to co-rotate with rotation of the gear, or "collectively". The support elements can be rotatably mounted or held in particular in the common rotary element.

It is an embodiment that the support members of the untwisting unit are individually rotatable in opposite directions to the collective rotation. This advantageously prevents that the individual lines are twisted as such and therefore their internal structure is damaged.

It is a further development that the support elements of the de-twisting unit have respective outer sprockets and are rotatable about the sprockets about their longitudinal axis. In particular, sprockets of the support elements can engage in an internal sprocket of a toothed ring surrounding the support elements. The toothed ring can be rotatable. In particular, the toothed ring can be rotated in the same direction (but possibly with a different rotational speed) or in opposite directions to the collective rotational movement of the support elements in order to keep an angular position or rotational position of the support elements in space equal despite their positional change in space (for example along a closed circular path).

It is still another embodiment that the support members of the de-twisting unit are formed as actuator terminals (e.g., electromotive, pneumatic, hydraulic, etc.) operable front terminals. This allows a particularly simple clamping and triggering of the individual cables.

It is a further development that the holding elements of the untwisting unit are connected to a lifting unit (eg a lifting motor or a lifting actuator), which lifting unit can selectively effect an opening and closing of the holding elements by a lifting movement. The support members may be connected together with a common lifting unit and thereby all opened or closed simultaneously. The support members may also be individually connected to a respective lifting unit and thereby individually opened or closed.

It is a further embodiment that the support member is designed as a front terminal, which has spring-assisted opening jaws on the front, which jaws can be closed by sliding a movable sleeve, and the sleeve is actuated (eg, electric motor, pneumatic, hydraulic, etc.), in particular by means of the lifting unit.

The fixing unit can hold the individual lines during rotation and in particular is itself not rotatable. The fixing elements may be in particular terminals. The fixing elements can be actuated by a motor.

It is yet a further embodiment that a force that can be applied to the respective individual lines by the fixing elements, in particular terminals, of the fixing unit is variable. As a result, a clamping of the individual lines before twisting can be facilitated. In particular, a uniform application and smooth post-correction of the tension or the clamping pressure of the individual lines between the fixing unit and the untwisting unit can thus be achieved.

Alternatively, a holding force and / or tension applied to the individual lines may be adjusted instead of being clamped by, for example, controlled or controlled pneumatic cylinders.

A longitudinally displaceable reception of the individual lines in the twisting unit can be understood in particular to mean that the individual lines along their longitudinal direction (which can correspond in particular to a displacement direction of the twisting unit) are freely movable through the twisting rotor.

It is also an embodiment that the Verdrillrotor has an annular sector-shaped rotary ring with a gap for inserting the individual lines, from which rotary ring a plurality of radially inwardly movable pins project, which can meet centrally and each of which two adjacent pins form lateral boundaries of a respective receiving area , This embodiment provides the advantage that the individual lines are particularly easy to insert into the twisting unit.

The pins can be moved or moved actuatorically (e.g., electromotive, pneumatic, etc.). The pins may be sharpened at their tips to increase the size of their contact surface and thus to prevent unwanted slipping of the individual lines from their respective receiving areas particularly secure. The pins can be arranged in a star shape. The pins can be arranged symmetrically.

It is also an embodiment that the twisting device has at least two drive pinions for rotational movement of the rotary ring, wherein the drive pinion engage at different circumferential positions in a ring gear ("drive sprocket") of the rotary ring and a distance between the circumferential positions of the drive pinion is greater than a gap width of the gap in the turning ring. As a result, a secure rotational movement of the guide unit is achieved.

It is also an embodiment that the twisting device has at least two drive pinions, which are connected to a drive belt and drive it, for the rotational movement of the rotary ring, wherein the drive belt engages in the drive toothed ring of the rotary ring. As a result, a safe rotational movement of the guide unit is also achieved.

Because through the gap and the drive sprocket is interrupted on the guide unit, by means of which the guide unit is driven in rotation. This interruption of the drive sprocket is an interruption of the connection between a drive pinion and the drive sprocket. Thus, the power transmission between the drive sprocket and the Verdrillrotor would be interrupted with only one drive pinion. The interruption of the power transmission is prevented by the second drive pinion or the drive belt, since then always engages at least one drive pinion or the drive belt in the drive sprocket of the twisting unit and the power transmission is maintained.

It is a further development that at least one further platform or functional unit is arranged between the fixing unit and the de-twisting unit, for example a device ("line termination device") for setting of setting, for setting a "hot-melt" volume, etc. in order to prevent in that the twisted lines open again.

• Fig.1 zeigt in einer Ansicht von schräg oben eine Verdrillvorrichtung;
• Fig.2 zeigt in einer Ansicht von schräg oben eine Fixiereinheit und eine Entdrilleinheit der Verdrillvorrichtung;
• Fig.3 zeigt in einer Ansicht von schräg vorne eine Verdrilleinheit der Verdrillvorrichtung in einem ersten Zustand;
• Fig.4 zeigt in einer Ansicht von schräg vorne die Verdrilleinheit in einem zweiten Zustand;
• Fig.5 zeigt in einer Ansicht von schräg vorne die Verdrilleinheit in einem dritten Zustand;
• Fig.6 zeigt in einer Ansicht von schräg vorne die Verdrilleinheit in einem vierten Zustand;
• Fig.7 zeigt in einer Ansicht von schräg vorne die Entdrilleinheit mit geschlossenen Halterungselementen;
• Fig.8 zeigt in einer Ansicht von schräg hinten die Entdrilleinheit mit geschlossenen Halterungselementen;
• Fig.9 zeigt in einer Ansicht von schräg vorne ein Halterungselement der Entdrilleinheit in einer geschlossenen Stellung mit einer durchsichtig eingezeichneten Hülse;
• Fig.10 zeigt in einer Ansicht von schräg vorne das Halterungselement in der geschlossenen Stellung mit der nicht durchsichtig eingezeichneten Hülse;
• Fig.11 zeigt in einer Ansicht von schräg vorne die Entdrilleinheit mit geöffneten Halterungselementen;
• Fig.12 zeigt in einer Ansicht von schräg hinten die Entdrilleinheit mit geöffneten Halterungselementen;
• Fig.13 zeigt in einer Ansicht von schräg vorne ein Halterungselement der Entdrilleinheit in einer geöffneten Stellung mit einer durchsichtig eingezeichneten Hülse;
• Fig.14 zeigt in einer Ansicht von schräg vorne das Halterungselement in der geöffneten Stellung mit der nicht durchsichtig eingezeichneten Hülse;
• Fig.15 zeigt in Frontdarstellung die Entdrilleinheit mit geschlossenen Spannelementen in einer ersten Drehstellung;
• Fig.16 zeigt in Frontdarstellung die Entdrilleinheit mit geschlossenen Spannelementen in einer zweiten Drehstellung; und
• Fig.17 zeigt in einer Ansicht von schräg oben die Verdrillvorrichtung mit einer Leitungsabbindungseinrichtung.

The above-described characteristics, features and advantages of this invention, as well as the manner in which they are achieved, will become clearer and more clearly understood in connection with the following schematic description of an embodiment which will be described in detail in conjunction with the drawings.

• Fig.1 shows in a view obliquely from above a twisting device;
• Fig.2 shows in a view obliquely from above a fixing unit and a Entdrillinheit the Verdrillvorrichtung;
• Figure 3 shows in a view obliquely from the front a twisting unit of the twisting device in a first state;
• Figure 4 shows in a view obliquely from the front, the twisting unit in a second state;
• Figure 5 shows in a view obliquely from the front, the twisting unit in a third state;
• Figure 6 shows in a view obliquely from the front, the twisting unit in a fourth state;
• Figure 7 shows in a view obliquely from the front the Entdrillinheit with closed support members;
• Figure 8 shows in a view obliquely from behind the Entdrillinheit with closed support members;
• Figure 9 shows in a view obliquely from the front a support member of the Entdrillinheit in a closed position with a transparent drawn sleeve;
• Figure 10 shows in a view obliquely from the front of the support member in the closed position with the non-transparent drawn sleeve;
• Figure 11 shows in a view obliquely from the front the Entdrillinheit with open support elements;
• Figure 12 shows in a view obliquely from behind the Entdrillinheit with open support elements;
• Figure 13 shows in a view obliquely from the front a support member of the Entdrillinheit in an open position with a transparent drawn sleeve;
• Figure 14 shows in a view obliquely from the front of the support member in the open position with the non-transparent drawn sleeve;
• Figure 15 shows in front view the Entdrillinheit with closed clamping elements in a first rotational position;
• Figure 16 shows in front view the de-twisting unit with closed clamping elements in a second rotational position; and
• Figure 17 shows in a view obliquely from above the twisting device with a line termination device.

Fig.1 shows in a view obliquely from above a twisting device 1. The twisting device 1 has a fixing unit 2 with a plurality of fixing elements in the form of terminals 3 for clamping first end portions of four individual lines L1 to L4 here. The end sections can be subsequently equipped or connected with contact parts and EADs, etc. The clamps 3 can be actuated (electromotively, pneumatically, hydraulically, etc.) and can vary the force which can be applied to the individual lines L1 to L4.

The twisting device 1 furthermore has a de-twisting unit 4 with four holding elements 5 for clamping a respective individual line L1 to L4. The support members 5 can be selectively opened and closed by means of a lifting motor 6.

The fixing unit 2 and / or the de-twisting unit 4 are movable along a longitudinal extent A of the individual line L1 to L4 (as indicated by the associated double arrows) to tension the individual lines L1 to L4 and thus, for example, their sagging between the fixing unit 2 and the de-twisting unit 4 to avoid.

Between the fixing unit 2 and the untwisting unit 4, a twisting unit 7 is arranged so that the components 2, 4, 7 are arranged in a row. The row is aligned along the longitudinal extent A. The twisting unit 7 -as well as the fixing unit 2 and / or the untwisting unit 4 -is movable back and forth along the longitudinal extent A (as indicated by the associated double-headed arrow), namely by a travel distance d.

It is also possible to arrange further platforms or functional units between the fixing unit 2 and the de-twisting unit 4 For example, a line termination 33 for setting binders, for setting a "hot-melt" volume, etc. (see also FIG Figure 17 ).

The twisting unit 7 has a rotatable twisting rotor 8 whose axis of rotation coincides with the longitudinal extension A or a straight line parallel thereto. The non-twisted individual line L1 to L4 are guided by the Verdrillrotor 8, in such a way that they can run freely in the direction of the longitudinal extent A through the guide unit 8. So they are not prevented along the longitudinal extent A by the guide unit 8.

At the beginning of a method for twisting the individual lines L1 to L4 by means of the twisting device 1, in a step (a) the individual lines L1 to L4 are introduced and clamped at a respective first position or location into a respective terminal 3. The individual lines L1 to L4 have been pre-assembled or cut to length here, with different lengths. Therefore, the individual lines L1 to L4 protrude beyond the terminals 3 with end areas of different lengths ("line offset"). This has the advantage that the line ends of a finished twisted-wire strand or line package (see below) are there better recognizable and manageable. Alternatively, the individual leads may be fed from a magazine or cable cutting machine and may even be separated therefrom after twisting.

In this step (a), the force with which the individual lines L1 to L4 are held in the terminals 3 can be so high that the individual lines L1 to L4 do not slip out, but are still so small that they are pulled through the terminals 3 can be. This facilitates introduction of the still untwisted individual lines L1 to L4 in the twisting device 1 and their uniform clamping. It is a uniform application and smooth Nachkorrigieren a voltage of the strained individual lines L1 to L4 allows.

Also, the individual lines L1 to L4 at a second position, here: at its other end, firmly clamped in the support members 5 of the untwisting unit 4.

In addition, in a step (c), the individual lines L1 to L4 are inserted between the first position and the second position in the twisting unit 7. Before twisting as such, the individual lines L1 to L4 are thus still separated from each other - and in particular parallel to each other - laid between the fixing unit 2 and the de-twisting unit 4.

The steps (a), (b) and (c) can be carried out in any order and possibly also simultaneously.

In a step (d), the individual lines L1 to L4 are tensioned by moving the fixing unit 2 and / or the de-twisting unit 4, and are then under a tension or clamping pressure.

In a particularly partially automatically feasible variant, the individual lines L1 to L4 to be twisted can be firmly clamped into the holding elements 5 of the untwisting unit 4 and the untwisting unit 4 then moved in the longitudinal extension L up to a predetermined position. After reaching this predetermined position, the individual lines L1 to L4 are now clamped by the fixing unit 2 and then stretched between the fixing unit 2 and the untwisting unit 4. The desired clamping pressure as well as the clamping pressure during Verdrillvorgangs can by methods the fixing unit 2 and / or the de-twisting unit 4 are applied to the wiring harness or on the line package from the twisted individual lines L1 to L4.

In another variant, the individual lines L1 to L4 to be twisted can be inserted into the previously moved and positioned fixing unit 2, twisting unit 7 and unthreading unit 4, clamped on both sides and then tensioned between the fixing unit 2 and the untwisting unit 4.

In a step (e), the individual lines L1 to L4 are twisted by means of a rotational movement D1 of the twisting rotor 8 of the twisting unit 7 in a corresponding direction. The rotational movement D1 is indicated here counterclockwise, but can also run in a clockwise direction. The twisting rotor 8 can thus be rotatable in both directions of rotation D1. With the rotation of the twisting rotor 8, the twisting unit 7 is also moved longitudinally, here from the fixing unit 2 to the de-twisting unit 4. By setting a rotational speed of the rotational movement D1 and a traveling speed of the twisting unit 7 in the longitudinal direction A, parameters of the twisting can be like an angle of attack , a stroke or a stroke length, etc. of the individual lines L1 to L4 are set. The rotational speed and / or the travel speed can remain constant or changed during a twisting operation.

The twisting unit 7 stops at the position of the travel path d at which the twisting operation should be terminated. As a result, uninterrupted lengths of different lengths can also be realized on both sides.

In a step (f), which is carried out in particular simultaneously with step (e), the de-twisting unit 4 is activated with the individual lines L1 to L4 performs a corresponding to the rotational movement D1 of the twisting unit 4, concurrent rotational movement D1. This avoids twisting of the individual lines L1 to L4 between the de-twisting unit 4 and the twisting unit 7, and only twisting occurs to a twisted wire harness S between the non-rotatable fixing unit 2 and the twisting unit 7. As a result, the twisting unit 7 can easily be moved in the direction of the unthreading unit 4 during the twisting. In particular, the rotational movements D1 of the untwisting unit 4 and the twisting unit 7 have the same rotational speed. In the rotational movement D1 of the untwisting unit 4, the four support members 5 are rotated as a common group about the associated rotation axis ("collective rotation").

Fig.2 shows in a view obliquely from above an enlarged schematic arrangement of the fixing unit 2 and the de-twisting unit 4 with the clamped therebetween individual lines L1 to L4. Longitudinal guides 9 for a respective individual line L1 to L4 are present in front of the clamps 3 in order to be able to position the individual lines L1 to L4 precisely in the clamps 3.

The individual lines L1 to L4 can be pulled through the associated terminals 3 during clamping in step (d). The contact pressure of the terminals 3 is reduced for this purpose, so that individual lines L1 to L4 can indeed be pulled through, but still so high that the individual lines L1 to L4 are held taut due to friction occurring during the intake. After reaching a predetermined distance between the fixing unit 2 and the de-twisting unit 4, the individual lines L1 to L4 are now firmly clamped by the fixing unit 2 and then between the fixing unit. 2 and the Entdrillinheit 4 stretched to a predetermined voltage or a predetermined clamping pressure.

Figure 3 shows in a view obliquely from the front of the twisting unit 7 in a first state. The twisting rotor 8 is rotatably arranged on a plate-shaped carrier 10, which carrier 10 can be fastened, for example, with a moving unit (not shown). The Verdrillrotor 8 has an annular rotary ring 11 which is rotatable by means of two spaced-apart pinions 12a and 12b. In this case, both pinions 12a and 12b are driven and engage in a likewise annular sector-shaped outer ring gear 20 of the rotary ring 11 a.

A central hole 13 of the rotary ring 11 is in coincidence with an eye 14 of the carrier 10, so that the individual lines L1 to L4 can be passed therethrough. On the rotary ring 11 five pins 15 are mounted radially displaceable. You can individually or in groups in the central hole 13 of the rotary ring 11 and retracted.

The rotary ring 11 has a radial gap 16, through which the individual lines L1 to L4 can be inserted into the hole 13 and also removed again. The rotary ring 11 can therefore also be referred to as an annular sector-shaped rotary ring 11. The carrier 10 has a corresponding gap 17 leading to its eye 14.

In the first state shown, the rotary ring 11 has a rotational position in which the two gaps 16 and 17 are congruent and in which the pins 15 are retracted. In this first state, the twisting unit 7 is ready to insert the individual lines L1 to L4 into the holes 13 and 14 through the gaps 16 and 17.

For this purpose, first the lowest vertical pin 15 can be raised radially in the hole 13. This one pin 15 may alternatively stand firmly in the hole 13. Then two of the individual lines L1 to L4 can be inserted through the two columns 16 and 17 left and right of the raised pin 15, and then the right and left next to the raised pin 15 located pins 15 are inserted or inserted into the hole 13, which as second state in Figure 4 is shown. Two adjacent pins 15 together with the intermediate sector of the rotary ring 11 form a receiving area 18 of the guide unit 7 for a respective individual line L2 or L4.

Subsequently, the two other individual lines L1 and L3 can be inserted through the two columns 16 and 17, so that they are located to the left or right of the columns 16 and 17. Then, the last two pins 15 can be retracted or inserted into the hole 13, which is the third state in Figure 5 is shown. Since the pins 15 are bevelled at their inner tip, they contact there and prevent slipping of the individual lines L1 and L3 from the respective receiving areas 18th

The guide unit 7 can now be rotated to twist the single line L1 to L4 and be displaced by means of the carrier 10 in the longitudinal direction or longitudinal extent L.

Figure 6 shows in a view obliquely from the front of the twisting unit 7 in a fourth state without the individual lines L1 to L4. Now, the rotary ring 11 is in a rotational position in which the two columns 16 and 17 are not superimposed. The gap 16 of the rotary ring 11 and thus also of the ring gear 20 opens now to a drive pinion 12 a. If only one drive pinion 12a or 12b were present, it could

Problems in the further rotation of the rotary ring 11 come that do not occur in two driven pinions 12a and 12b. Because the pinions 12a and 12b engage in different circumferential positions in the ring gear 20, wherein a distance between the circumferential positions of the pinion 12a and 12b is greater than a gap width of the gap 16 of the rotary ring 11 and thus also of the ring gear 20th

Figure 7 shows in a view obliquely from the front the Entdrillinheit 4 with closed support members. 5 Figure 8 shows the Entdrillinheit 4 with closed support members 5 in a view obliquely from behind.

The support members 5 are formed as actuatable (e.g., electromotive, pneumatic, hydraulic, etc.) actuatable front terminals. The support members 5 are elongated and arranged parallel to each other. In front view, they are positioned in matrix form each other. At their rear end they are attached to the common, radförmigen Übertragerelement 21 which is fixed to a lift rod 22 of the lifting motor 6.

As in Figure 8 shown, the support members 5 extend through respective passages 33 of a gear 32. The support members 5 are in the gear 32 about their respective longitudinal axis B (see Figure 9 ) rotatably mounted. Upon rotation of the gear 32 by means of a force on its outer sprocket, the four support members 5 are rotated together. As a result, the twisting of the individual lines L1 to L4 between the twisting unit 7 and the de-twisting unit 4 is counteracted. The rotation of the gear 32 is performed in accordance with the rotational movement D1.

Like now back in Figure 7 shown, the four support members 5 on the outside each have a peripheral ring gear 30. These sprockets 30 engage in an inner sprocket 31a of a toothed ring 31. The toothed ring 31 surrounds all of the first toothed rings 30 of the holding elements 5. The toothed ring 31 can be designed to be rotatable, in this case corresponding to the direction of rotation D1, for example. The toothed ring 31 has an outer toothed rim 31b for this purpose. The gear 32 and the toothed ring 31 are arranged concentrically to each other here and can also be connected to each other rotatably.

If the support elements 5 are rotated collectively by rotating the gear 32, for example in the direction of rotation D1, the support elements 5 rotate about their longitudinal axis B in the same direction as D1, for example by means of a rotation of the toothed ring 31 in the direction corresponding to D1. In this case, a rotational or angular velocity can be different. In particular, the support members 5 can be rotated or rotated so that their rotational position remains the same in the room (see also Fig.15 and Fig. 16 ). This prevents that the individual lines L1 to L4 are rotated by itself.

Basically - depending on the structure - the toothed ring 31 and the gear 32 are also rotated in opposite directions, so that the support members 5 are rotated or rotated so that their rotational position remains the same in space.

Figure 9 shows in a view obliquely from the front a support member 5 in the closed position with a transparent drawn sleeve 23rd Figure 10 shows a section of the support member 5 in the closed position with the non-transparent drawn sleeve 23th

The support members 5 have front two jaws 24 which can open laterally outwardly under pressure of a spring 25, but are prevented by the sleeve 23 therefrom. By moving the sleeve 23 relative to the jaws 24, an open position of the jaws 24 can be adjusted. In other words, the two jaws 24 form a nest, which can be selectively opened and closed by moving the sleeve 23 at the front. The jaws 24 are held rearwardly on a front side of a hollow cylindrical shaft 26.

For displacing the sleeve 23 along the longitudinal axis B, this is connected to a lifting rod 27, which is received longitudinally displaceable in the hollow cylindrical shaft 26. The sleeve 23 is connected to the lifting rod 27 via lateral pins 28. The pins 28 are guided in corresponding oblong holes 29 of the shaft 26. The lifting rod 27 is rotatably attached with its back to the Übertragerelement 21. Consequently, the lifting rod 27 and thus also the support member 5 as such can rotate about the longitudinal axis B.

For front-side insertion or removal of the individual lines L1 to L4 from the support elements 5, the lift motor 6 can withdraw the lift plunger 22, as in FIG Fig.11 and Fig.12 shown.

Since the lifting rod 27 and the clamping jaws 24 with the spring 25 are not longitudinally movable relative to the gear 32, so only the lifting rods 27 and thus the sleeves 23 are withdrawn via the Übertragerelement 21. With retracted sleeve 23, the jaws 24 of all support members 5 open simultaneously, and the individual lines L1 to L4 can be removed or inserted. This is magnified in Fig.13 and Fig.14 shown.

If the lifting motor 6 drives the lifting ram 22 out again, the sleeves 23 are again pushed over the clamping jaws 24, which then close.

Figure 15 shows in front view the Entdrillinheit 4 with closed clamping elements 5 in a first rotational position. In the following, the gear 32 is rotated by 45 ° clockwise about the longitudinal extent L, so that the clamping elements 5 collectively rotate 45 ° clockwise about the longitudinal extent L, as in Figure 16 shown.

But since at the same time the clamping elements 5 themselves are rotated by -45 ° or 45 ° in the opposite direction of rotation about their respective longitudinal axis B, their rotational position remains the same in space.

Figure 17 shows in a view obliquely from above the twisting device 1 with a line termination 33 in a waiting position (right position) and in a binding position (left position). The line termination device 33 can be moved toward the lines L1 to L4 and can be moved away from them and along the longitudinal extension of the lines L1 to L4, as indicated by the two double arrows. The line termination device 33 can, for example, at different positions (especially at the beginning and end of the twisting) set Abbinder (not shown), so that the twists after the Verdrillablauf or in a further processing no longer aufdrillen, as indicated by the left position.

In general, instead of or in addition to the line termination device 33, at least one further functional unit (not shown) may be present in order to connect those not yet twisted and / or to further process the twisted lines L1 to L4, for example to connect them to further components or components. This can be done after or during the twisting process. Thus, a further functional unit - for example, also at different positions - attach a winding, so that the twisted wire bundle L1 to L4 is protected against external mechanical influences. Yet another functional unit may be provided to attach holding parts, so that the line package at different locations, for example in a car, can be attached.

Of course, the present invention is not limited to the embodiment shown.

Thus, each of the support members of the de-twisting unit may be actuated individually, i. optionally openable and closable, be.

Generally, "on", "an", etc. may be taken to mean a singular or a plurality, in particular in the sense of "at least one" or "one or more" etc., unless this is explicitly excluded, e.g. by the expression "exactly one", etc.

Also, a number may include exactly the specified number as well as a usual tolerance range, as long as this is not explicitly excluded.

LIST OF REFERENCE NUMBERS

1

twisting

2

fuser

3

clamp

4

untwisting

5

supporting member

6

Lifting motor

7

twisting

8th

Verdrillrotor

9

longitudinal guide

10

carrier

11

rotating ring

12a

pinion

12b

pinion

13

hole

14

eye

15

pen

16

gap

17

gap

18

reception area

20

sprocket

21

transducer element

22

lift tappet

23

shell

24

jaw

25

feather

26

shaft

27

lifting rod

28

pen

29

Long hole

30

sprocket

31

toothed ring

31a

Inner sprocket

31b

Outer sprocket

32

gear

33

execution

A

longitudinal extension

B

longitudinal axis

d

traverse

D1

rotary motion

L1-L4

Single lines

Claims (10)

Method for twisting single conductors (L1-L4), in which (a) the individual lines (L1-L4) are introduced at a first position into a fixing unit (2), (b) the individual lines (L1-L4) are fastened to a second position spaced apart from the first position in a longitudinal extent (A) of the individual lines (L1-L4) in respective support elements (5) of a de-twisting unit (4), (c) inserting the individual lines (L1-L4) longitudinally displaceable between the first position and the second position into a twisting unit (7), (D) the individual lines (L1-L4) are stretched between the fixing unit (2) and the untwisting unit (4), (e) the individual lines (L1-L4) are twisted by means of a rotational movement (D1) of the twisting unit (7), wherein the twisting unit (7) is moved in a direction of movement from the direction of the fixing unit (2) in the direction of the untwisting unit (4), (F) the Entdrillinheit (4) with the individual lines (L1-L4) to the rotational movement (D1) of the twisting unit (7) corresponding rectified rotational movement such that the support members (5) with a common, collective rotational movement, the rotational movement the twisting unit (7) corresponds to be rotated about a common axis of rotation and in addition the support members (5) are themselves rotated in opposite directions to the collective rotary motion. The method of claim 1, wherein, for step (c), the individual lines (L1-L4) successively into respective receiving areas (18) of a rotatable Verdrillrotors (8) of the twisting unit (7) are introduced. Method according to one of the preceding claims, wherein in step (b) the individual lines (L1-L4) are clamped in the respective support elements (5) of the untwisting unit (4). Method according to one of the preceding claims, in which the individual lines (L1-L4) on the de-twisting unit (4) can be clamped and released by means of actuatable holding elements (5). Twisting device (1) comprising a fixing unit (2) having a plurality of fixing elements (3) for fixing first end regions of respective individual leads (L1-L4), a de-twisting unit (4) with holding elements (5) for fixing respective individual wires (L1-L4), a twisting unit (7) which can be moved between the fixing unit (2) and the de-twisting unit (4) and which has a rotatable twisting rotor (8) with a plurality of separable receiving areas (18) for longitudinally receiving and laterally guiding respective individual wires (L1-L4), in which - The fixing unit (2) and / or the Entdrillinheit (4) for tensioning the individual lines (L1-L4) are movable against each other, - The support members (5) of the unthreading unit (4) are rotatable together according to the Verdrillrotor (8) of the twisting unit (7), and - The support members (5) of the unthreading unit (4) are individually rotatable in opposite directions to the collective rotation. Twisting device (1) according to claim 5, wherein the support elements (5) of the de-twisting unit (4) are designed as actuatable front terminals. Twisting device (1) according to claim 6, wherein the holding element (5) is designed as a front clamp, the front spring-assisted opening jaws (24), which clamping jaws (24) by sliding a movable sleeve (23) are closable, and the sleeve ( 23) is actuatable movable. Twisting device (1) according to one of claims 5 to 7, wherein a by the fixing elements (3) of the fixing unit (2) on the respective individual lines (L1-L4) can be applied force is variable. Twisting device (1) according to one of claims 5 to 8, wherein the Verdrillrotor (8) has an annular sector-shaped rotary ring (11) with a gap (16) for inserting the individual lines (L1-L4), from which rotary ring (11) radially inwardly a plurality of pins (15) are movable, which meet centrally and of which two adjacent pins (15) form lateral boundaries of a respective receiving area (18). Twisting device (1) according to claim 9, further comprising at least two drive pinions (12a, 12b) for rotational movement of the rotary ring (11), wherein the drive pinions (12a, 12b) at different circumferential positions in a Sprocket (20) of the rotary ring (11) engage and a distance between the circumferential positions of the drive pinion (12a, 12b) is greater than a gap width of the gap (16) in the rotary ring (11).

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