Method and insulation stripping device for removing insulation from the inner conductor of a cable

Abstract

The present invention relates to a method for removing the insulation of the inner conductor of a cable by means of an insulation stripping device, comprising: providing a cable having a plurality of inner conductors, removing the cable sheath in a first sub-region of the cable, and not removing the cable sheath in a second sub-region of the cable; introducing the first sub-region of the cable between a first roller and a second roller of the insulation stripping device; moving the first roller and / or the second roller toward each other to clamp the first sub-region of the cable between the rollers; moving the cable along a first direction to move the second sub-region of the cable away from the rollers while clamping the first sub-region between the rollers; moving the cable along a second direction to move the second sub-region of the cable close to the rollers, the first direction extending opposite to the second direction, and the first sub-region being clamped between the rollers; moving an insulation stripping knife toward the first sub-region of the cable to make the insulation stripping knife cut into the insulation of the inner conductor; moving the cable along the first direction to remove at least a portion of the insulation of the inner conductor.

Description

Technical Field

[0001] The invention relates to a method for removing insulation from an inner conductor of a cable and an insulation stripping device. Background Art

[0002] Multicore cables or jacketed cables have several individually insulated inner conductors surrounded by a jacket. The jacket has at least an outer insulation layer and may contain additional layers, such as shielding fabric or foil. The individual inner conductors consist of twisted core wires (usually made of copper or aluminum) surrounded by an insulation (e.g. plastic insulation). The inner conductors may also be twisted.

[0003] In order to be able to process multi-core cables automatically, it is appropriate to align the inner conductors after pulling off the cable sheath in such a way that they are arranged next to each other in a row. This provides the prerequisite for stripping the insulation of the inner conductors using a special pair of knives.

[0004] A disadvantage of previously known methods or previously known stripping devices is that problems arise if the inner conductors are to be aligned next to one another but are not twisted or are twisted in the same direction as the direction of movement in which the stripping device removes the twist. In addition, in stripping devices according to the prior art, it is disadvantageous that the insulation may be deformed and / or the inner conductor may be deformed when the inner conductors are aligned. Summary of the invention

[0005] In particular, there would be a need for a method or a stripping device by means of which the insulation of the inner conductors of a multi-core cable can be removed in a technically simple and reliable manner.

[0006] This need can be met by a method or an insulation stripping device according to the invention for removing the insulation of an inner conductor of a cable. Advantageous embodiments are defined in the following description.

[0007] According to a first aspect of the invention, a method for removing the insulation of an inner conductor of a cable by means of an insulation stripping device is proposed, the method comprising the following steps: providing a cable having a plurality of inner conductors, removing the cable sheath in a first sub-region of the cable, and in a second sub-region of the cable, the cable sheath is not removed; introducing the first sub-region of the cable between a rotatable first roller and a rotatable second roller of the insulation stripping device; moving the first roller and / or the second roller so that the first roller and the second roller move toward each other to clamp the first sub-region of the cable between the rollers; moving the cable in a first direction so that the second sub-region of the cable moves away from the rollers, while the first sub-region is clamped between the rollers; moving the cable in a second direction so that the second sub-region of the cable approaches the rollers, wherein the first direction extends opposite to the second direction and the first sub-region is clamped between the rollers; moving a stripping knife toward the first sub-region of the cable so that the stripping knife cuts into the insulation of the inner conductor; and moving the cable in the first direction to remove at least a portion of the insulation of the inner conductor. The steps of the method can be performed in particular in the order given.

[0008] It is advantageous here that the inner conductors of a multi-core cable can be stripped in a technically simple manner. This means that the insulation of the inner conductors can be removed technically very easily. In particular, it is reliably prevented that the insulation or the inner conductors can be deformed when the inner conductors are aligned in one plane, even if the inner conductors of the cable are not twisted. Furthermore, it is also possible to strip the inner conductors of cables in which the cable sheathing is removed only in a small sub-region of the cable.

[0009] According to a second aspect of the present invention, an insulation stripping device for removing the insulation of an inner conductor of a cable is provided, wherein a cable sheath of the cable is removed in a first sub-region of the cable, and in a second sub-region of the cable, the cable sheath of the cable is not removed, wherein the insulation stripping device comprises: a rotatable first roller and a rotatable second roller, the rollers being designed to clamp the first sub-region of the cable between the first roller and the second roller, and a moving device for moving the cable in a first direction and in a second direction opposite to the first direction, while the first sub-region remains clamped between the rollers, when the cable moves in the first direction, the second sub-region of the cable moves away from the rollers; when the cable moves in the second direction, the second sub-region of the cable approaches the rollers; and an insulation stripping knife for removing the insulation of the inner conductor of the cable, wherein the insulation stripping knife can be designed and arranged in the following manner: the insulation stripping knife cuts into the insulation of the inner conductor, and the insulation is removed from the inner conductor when the cable moves in the first direction.

[0010] This has the advantage that, with the aid of the stripping device, it is technically easy and reliable to strip the insulation of multi-core cables, i.e. cables with a plurality of inner conductors. This means that the insulation of the inner conductors can be removed technically very easily. Furthermore, in the stripping device, it is reliably prevented that the insulation and / or the inner conductors are deformed when the inner conductors are aligned in one plane, even if the inner conductors are not twisted. Furthermore, the stripping device can be used to remove the insulation of the inner conductors even if the sub-region in which the cable jacket is removed from the cable is particularly short or small. Furthermore, the stripping device is designed to be cost-effective.

[0011] The possible features and advantages of the embodiments of the present invention are considered to be mainly based on the concepts and knowledge described below, but not limiting the present invention.

[0012] According to one embodiment of the method, after the cable has been moved in the first direction and before the cable is moved in the second direction, the pressure of the roller on the first subregion of the cable is increased. This has the advantage that the alignment of the internal conductors next to one another in a row or in a plane is achieved even more reliably or more quickly. In particular, the alignment of the internal conductors next to one another in a row or in a plane can be achieved particularly reliably if the internal conductors are twisted particularly strongly with one another.

[0013] According to one embodiment of the method, the stripping knife and the separating knife for cutting the cable are parts of a knife head, and the method further comprises the following steps: moving the knife head in a direction perpendicular to the first direction so as to arrange the first sub-area of ​​the cable between the stripping knives. This has the advantage that the stripping knife and the separating knife can be used independently of each other. This increases the variability of the process.

[0014] According to one embodiment of the method, during the clamping of the first sub-region of the cable between the rollers, the rollers are respectively moved only in one direction of movement, the two directions of movement of the rollers being diametrically opposed to one another. This has the advantage that the rollers do not perform any lateral movements relative to one another or movements offset relative to one another, but rather only linear movements in two opposite directions, thus moving towards one another or away from one another. This ensures that the inner conductors can be reliably aligned next to one another in a row or in one plane, even if the inner conductors are not twisted. In particular, deformations of the inner conductors or the insulation of the inner conductors are thereby reliably prevented.

[0015] According to one embodiment of the method, the pressure with which the rollers act on the first sub-area of ​​the cable during clamping depends on the distance between the two rollers. This has the advantage that the method can be carried out with a technically particularly simple stripping device. In addition, the method is also particularly reliable.

[0016] According to one embodiment of the method, the pressure with which the rollers clamp the first sub-region is adjusted independently of the distance between the rollers, in particular pneumatically. This has the advantage that the inner conductor can be moved or fed into the plane particularly reliably. In addition, the insulation of the inner conductor can be removed from the inner conductor more precisely.

[0017] According to one embodiment of the method, the cable is moved alternately in the first direction and in the second direction a plurality of times while the first sub-region is clamped between the rollers. This has the advantage that it is technically simple and particularly reliable to ensure that the inner conductor of the cable is arranged in one plane before the insulation of the inner conductor is removed.

[0018] According to one embodiment of the method, the cable is continuously moved alternately in the first direction and the second direction until the inner conductor of the cable is arranged in one plane. This has the advantage of ensuring that the inner conductor is actually arranged in one plane before the insulation is cut. Thus, the insulation can be ensured to be removed.

[0019] According to an embodiment of the insulation stripping device, the insulation stripping device further comprises a knife head, the knife head having an insulation stripping knife and a separating knife, and the knife head can be moved in a direction perpendicular to the first direction in such a way that the first sub-region of the cable reaches between the insulation stripping knives. This has the advantage that in the insulation stripping device, the insulation stripping knife and the separating knife can be used independently of each other, which increases the variability of the insulation stripping device.

[0020] According to one embodiment of the stripping device, the stripping device is designed such that when the first sub-region of the cable is clamped between the rollers, the rollers can each be moved only in one direction of movement, wherein the two directions of movement of the rollers are exactly opposite to one another. This has the advantage that in the stripping device the rollers cannot perform a transverse movement, i.e. a movement offset from one another, but can only move in a direction of movement towards or away from one another. This ensures that even for cables with inner conductors that are not twisted together, the inner conductors can be aligned in one plane without deformation of the inner conductors and / or the insulation.

[0021] According to one embodiment of the insulation stripping device, the insulation stripping device is designed such that: while the first sub-region of the cable is clamped between the rollers, the pressure of the rollers on the first sub-region of the cable can be increased, and the pressure with which the rollers clamp the first sub-region depends on the distance between the rollers. This has the advantage that the insulation stripping device can be constructed particularly simply and cost-effectively in terms of technology.

[0022] According to one embodiment of the stripping device, the stripping device is designed such that the pressure of the rollers on the first sub-region of the cable can be increased, in particular pneumatically, while the first sub-region of the cable is clamped between the rollers, while the spacing between the rollers remains essentially constant. This has the advantage that the stripping device can align the inner conductors particularly reliably in one plane. In addition, the stripping device can more reliably remove the insulation of the inner conductors.

[0023] According to one embodiment of the stripping device, the stripping device is designed so that: while the first sub-region is clamped between the rollers, the cable is moved alternately in the first direction and the second direction multiple times. This has the advantage that, before removing the insulation of the inner conductors, the inner conductors of the cable can be arranged next to each other or in one plane in a reliable and technically simple manner with the aid of the stripping device.

[0024] According to one embodiment of the insulation stripping device, the insulation stripping device is designed so that the cable can be moved alternately in the first direction and the second direction until the inner conductors of the cable are arranged in one plane. The advantage of this is that the insulation stripping device ends the movement of the cable in the first direction or the second direction only when the inner conductors are actually aligned or arranged in one plane. This ensures that the subsequent steps of cutting the insulation and removing the insulation of the inner conductor can be successfully and accurately performed.

[0025] It should be noted that some feasible features and advantages of the present invention are introduced with reference to different embodiments. It is known to those skilled in the art that these features can be combined, adapted or exchanged in an appropriate manner to obtain other embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The embodiments of the present invention are described below with reference to the accompanying drawings, wherein neither the drawings nor the description should be construed as limiting the present invention.

[0027] Figure 1 A perspective view shows an embodiment of the insulation stripping device according to the invention.

[0028] Figure 2 A perspective view of a cable having a plurality of inner conductors is shown, wherein the cable sheathing has been removed in a first partial region.

[0029] Figure 3 Show Figure 1 A front view of a knife holder of an insulation stripping device;

[0030] Figure 4 It is shown that in a first method step, Figure 1 A side view of an insulation stripping device;

[0031] Figure 5 It is shown that in a first method step, Figure 1 A perspective view of an insulation stripping device in FIG.

[0032] Figure 6 It is shown that in the second method step, Figure 1 A side view of an insulation stripping device;

[0033] Figure 7 It is shown that in the third method step, Figure 1 A side view of an insulation stripping device;

[0034] Figure 8 It is shown that in the fourth method step, Figure 1 A side view of an insulation stripping device;

[0035] Fig. 9 It is shown that in the fifth method step, Figure 1 A side view of the insulation stripping device in FIG.

[0036] Fig.10 It is shown that in the fifth method step, Figure 1 A perspective view of an insulation stripping device in FIG.

[0037] The figures are schematic and not drawn to scale. In the different figures, the same reference numerals denote the same or identically functioning features. DETAILED DESCRIPTION

[0038] Figure 1 A perspective view of an embodiment of a stripping device 5 according to the invention is shown. Figure 2 A perspective view of a cable 10 having a plurality of inner conductors 30 , 31 is shown, wherein the cable sheathing 20 has been removed in a first sub-region 12 . Figure 3 Show Figure 1 A front view of the knife holder of the insulation stripping device 5 in FIG.

[0039] exist Figure 3 In, it can be said that from Figure 1 Look to the tool holder from the left side of the

[0040] The insulation stripping device is designed to remove insulation 38 of a plurality of inner conductors 30, 31 of a cable 10. The cable 10 typically comprises a cable jacket 20. The cable jacket 20 typically has one or more outer insulation layers. The cable jacket 20 may contain additional layers, such as shielding fabrics or foils.

[0041] The cable 10 has a plurality of inner conductors 30, 31 or cores. This means that the cable 10 is a multi-core cable 10. The inner conductors 30, 31 may be twisted together, as shown in FIG. Figure 4However, the inner conductors 30, 31 or the cores of the cable 10 can also extend parallel to each other, as in Figure 2 This means that the inner conductors 30, 31 may not be twisted together.

[0042] The inner conductor 30, 31 can again have a plurality of strands 35, 36. The plurality of strands 35, 36 can be twisted together. It is also conceivable that the strands 35, 36 are not twisted together.

[0043] In the case of the cable 10, the cable sheath 20 is removed in the first sub-region 12 of the cable 10, so that the inner conductors 30, 31, each with an insulating sheath 38, are exposed. Figure 2 In the figure, the first sub-region 12 of the cable 10 is located on the left. In the second sub-region 14 of the cable 10 there is also a cable sheath 20. Figure 2 In FIG. 1 , the second sub-region 14 of the cable 10 is located on the right.

[0044] The cable sheathing 20 may have been removed by means of a stripping device in the first sub-region 12 of the cable 10. It is also possible to have removed the cable sheathing 20 in the first sub-region 12 of the cable 10 manually or by another device.

[0045] The insulation stripping device has a knife holder having an upper separation knife 46, a lower separation knife 48, an upper insulation stripping knife 42 and a lower insulation stripping knife 44. Both insulation stripping knives 42, 44 have an outer protrusion, so that when the insulation stripping knives 42, 44 are closed, a rectangle is formed in a plane extending perpendicular to the longitudinal axis of the cable 10. The longitudinal axis of the cable 10 is at Figure 3 When using insulation stripping knives 42, 44, the cable 10 passes through the rectangle.

[0046] The separating knives 46, 48 are each V-shaped so that when they are closed, openings are formed by parts of the separating knives 46, 48 and extend in a plane perpendicular to the longitudinal axis of the cable 10. When the separating knives 46, 48 are used, the cable 10 passes through these openings.

[0047] The separating knives 46, 48 are designed to cut or cut through the cable 10 or the inner conductors 30, 31. However, it is also conceivable to cut the cable sheath 20 with the separating knives 46, 48 and to use the separating knives to remove the sheath.

[0048] The insulation stripping knives 42, 44 each have a plurality of protrusions and recesses. This means that the insulation stripping knives 42, 44 each have a sawtooth shape on their cutting edges facing the cable 10. The protrusions and recesses of the upper insulation stripping knives 42, 44 can be constructed complementary to the protrusions and recesses of the lower insulation stripping knives 42, 44. The number of protrusions or recesses can correspond to the (maximum) number of inner conductors 30, 31, so that for the inner conductors 30, 31, the second insulation stripping knives 42, 44 each have grooves or recesses. The insulation stripping knives 42, 44 are used to cut or cut the insulation 38 of the inner conductors 30, 31.

[0049] The cutter head 40 can move in a plane perpendicular to the longitudinal extension of the cable 10 (in Figure 3 This means that the cutter head 40 can be placed in a position such that when the cutter head 40 is closed, the separating blades 46, 48 cut through the cable 10, or when the cutter head 40 is closed, the stripping blades 42, 44 cut into the insulation 38 of the inner conductors 30, 31. Thus, the cable 10 is located between the stripping blades 42, 44 or between the separating blades 46, 48.

[0050] In the figures, the knife head 40 is always arranged in such a way that the cable 10 is arranged between the stripping knives 42 , 44 .

[0051] The insulation stripping device 5 has a first roller 60 or upper roller and a second roller 62 or lower roller. The rollers 60, 62 can be designed as rollers. The rollers 60, 62 can each rotate about their horizontal axis. Figure 3 The rollers 60, 62 are arranged further to the right than the stripping knives 42, 44. The rollers 60, 62 are moved towards each other by the closing movement of the knife head 40. This means that when the knife head 40 is closed or the upper part and the lower part of the knife head 40 are moved towards each other, the rollers 60, 62 are also moved towards each other. The rollers 60, 62 are loaded with a plurality of pressure springs 50, 52. When the cable 10 is clamped between the rollers 60, 62, the pressure springs 50, 52 generate a clamping force for the first sub-area 12 of the cable 10. The clamping force depends on the spacing between the two rollers 60, 62. The further the stripping knives 42, 44 are closed, the stronger the rollers 60, 62 are pressed onto the first sub-area 12 of the cable 10.

[0052] It is also conceivable that the rollers 60, 62 have a closing device that is independent of the stripping knives 42, 44. The closing device can have, for example, a pneumatic cylinder. Thus, the clamping force of the rollers 60, 62 on the first sub-region 12 of the cable 10 can be changed independently of the spacing between the rollers 60, 62.

[0053] The rollers 60, 62 can (apart from possible rotation) move essentially only upwards (away from each other) and downwards (towards each other). Lateral movement of the rollers 60, 62 is not contemplated.

[0054] The following is a description of the method sequence for removing the insulation 38 or the insulation of the inner conductors 30 , 31 or the cores of the cable 10 .

[0055] Figure 4 It is shown that in a first method step, Figure 1 A side view of the insulation stripping device 5 in FIG. Figure 5 It is shown that in a first method step, Figure 1 A perspective view of the insulation stripping device 5 in FIG.

[0056] First, a cable 10 having a plurality of inner conductors 30, 31 is provided, for which the cable sheath 20 has been removed in the first sub-region 12 (see Figure 2 The inner conductors 30, 31 may be twisted with each other (see Figure 3 ), or Figure 2 In the second sub-region 14 , the cable sheath 20 is still present on the cable 10 .

[0057] The cable 10 is guided with its first sub-region 12 between the stripping knives 42, 44. The knife head 40 is then closed to such an extent that the first sub-region 12 of the cable 10 or a section of the first sub-region 12 is clamped between the two rollers 60, 62. The rollers 60, 62 then press against the inner conductors 30, 31 of the cable 10 in opposite directions. Figure 4 The pressure or force is shown in FIG. 1 by two arrows.

[0058] exist Figure 4 In the embodiment of the present invention, the cable 10 is introduced between the rollers 60 , 62 to such a depth that the cable sheathing 20 of the second sub-region 14 almost touches the blade holder.

[0059] Figure 6 During or after the second method step, Figure 1 After a section of the first sub-region 12 of the cable 10 has been clamped between the rollers 60, 62, the cable 10 is now moved along its longitudinal axis (the longitudinal axis is in the middle) by means of a displacement device 7 (e.g. a plurality of rollers). Figure 6 The stripping knife 42, 44 or the roller 60, 62 is moved in a first direction (extending from left to right or from right to left) so that the second sub-region 14 of the cable 10 in which the cable sheath 20 is located is removed from the stripping knife 42, 44 or the roller 60, 62. Figure 6 This movement is shown by arrows in FIG.

[0060] Cable 10 can be said to be Figure 6The rollers 60, 62 move to the left in the middle, while the rollers 60, 62 keep the inner conductors 30, 31 clamped or continue to press against the inner conductors 30, 31. This is a scraping relative movement. Figure 6 During the leftward movement, rollers 60, 62 rotate accordingly about their respective axes of rotation.

[0061] By pressing or clamping the inner conductors 30, 31 between the rollers 60, 62 and at the same time Figure 6 By moving the inner conductors 30, 31 to the left, the inner conductors 30, 31 can be brought close to an arrangement or alignment in which the inner conductors 30, 31 are arranged side by side in one plane. If the inner conductors 30, 31 are twisted with each other, they are (at least partially) untwisted.

[0062] Figure 7 It is shown that in the third method step, Figure 1 1. A side view of the insulation stripping device 5 in FIG. After the cable 10 has been moved in the first direction, the pressure of the rollers 60, 62 on the first sub-region 12 of the cable 10 or a section of the first sub-region 12 increases. Figure 7 The increase in the pressure of the rollers 60, 62 on the subsection of the first sub-region 12 of the cable 10 is optional and does not have to be performed.

[0063] Figure 8 This is shown in the fourth method step. Figure 1 5. The cable 10 is now moved in a second direction opposite to the first direction. This means that the second sub-area 14 of the cable 10 is moved towards the stripping knife 42, 44 or the roller 60, 62. This movement direction of the cable 10 is Figure 8 Indicated by arrows. Figure 8 , the cable 10 moves to the right. During this movement, the rollers 60, 62 rotate about their respective rotation axes. This prevents the inner conductors 30, 31 and / or the insulation 38 from bending and / or curving. The rollers 60, 62 also keep the first sub-region 12 of the cable 10 clamped between the rollers 60, 62 or press against the first sub-region 12 of the cable 10 in mutually opposite directions.

[0064] The second method step and the fourth method step (and the third method step if necessary between the second method step and the fourth method step) can be repeated alternately, in particular repeated multiple times. This means that the cable 10 is moved alternately multiple times in the first direction and the second direction, while the cable 10 is clamped or held between the rollers 60, 62. It is conceivable that each time the movement direction of the cable 10 is turned (from the first direction to the second direction and / or from the second direction to the first direction), the pressure of the rollers 60, 62 on the first sub-area 12 is increased.

[0065] At this time, the inner conductors 30, 31 are arranged side by side in a row or in a plane. This means that as long as the inner conductors 30, 31 are in a mutually twisted state, the inner conductors are untwisted.

[0066] Fig. 9 It is shown that in the fifth method step, Figure 1 A side view of the insulation stripping device 5 in FIG. Fig.10 It is shown that in the fifth method step, Figure 1 A perspective view of the insulation stripping device 5 is shown.

[0067] Finally, the blade head 40 or the insulation stripping blades 42, 44 are closed further than before, so that the insulation stripping blades 42, 44 cut into the insulation 38 of the inner conductors 30, 31 at the upper and lower portions, respectively. Fig. 9 Indicated by arrows.

[0068] After the stripping blades 42, 44 have cut into the insulation 38, the cable 10 is moved in a first direction, i.e., to the left, the cable 9. As a result, the insulation 38 of the inner conductors 30, 31 is removed or pulled off the inner conductors 30, 31. The insulation 38 remains suspended from the stripping blades 42, 44, so to speak. The removal of the insulation 38 or the insulation of a plurality of inner conductors 30, 31, in particular all the inner conductors 30, 31 of the cable 10, is performed simultaneously.

[0069] like Fig.10 It can be clearly seen in FIG. 1 that during the cutting into the insulation 38 or during the removal of the insulation 38 , the inner conductors 30 , 31 lie next to one another in one plane.

[0070] The pressure of the rollers 60 , 62 against the inner conductors 30 , 31 of the cable 10 can be adjusted or varied pneumatically. This means that the pressure against the inner conductors 30 , 31 of the cable 10 can be varied independently of the spacing between the rollers 60 , 62 .

[0071] The described movement of the cable 10 or the inner conductor 30, 31 is always considered relative to the knife holder. This means that the knife holder can also be actively moved without moving the cable 10. The only important difference is the relative movement of the cable 10 relative to the knife holder or relative to the stripping knives 42, 44 or rollers 60, 62.

[0072] Typically no lateral movement of the rollers 60, 62 occurs for aligning the inner conductors 30, 31. The rollers 60, 62 are merely moved toward each other to increase the pressure on the first sub-region 14 of the cable 10 or away from each other to reduce the pressure on the first sub-region 12 of the cable 10.

[0073] The rollers 60, 62 do not move relative to each other or in directions that are offset parallel to each other. The rollers 60, 62 move toward each other, so that the cable 10 is clamped or pressed between the rollers 60, 62. The rollers 60, 62 do not move laterally relative to the cable 10 to actively untwist the inner conductors 30, 31. Therefore, it does not happen that the rollers 60, 62 push or try to untwist the inner conductors 30, 31 in a direction relative to the twisting direction of the inner conductors 30, 31, whereby the inner conductors 30, 31 are further untwisted instead of being untwisted, which may cause damage and / or deformation of the inner conductors 30, 31. Due to the movement of the rollers 60, 62 toward each other, the inner conductors 30, 31 are untwisted and arranged in one plane regardless of the twisting direction of the inner conductors 30, 31, without causing damage or deformation of the inner conductors 30, 31.

[0074] The forces acting on the inner conductors 30, 31 from the stripping device 5 can be said to act from above, below and in diametrically opposite directions on the inner conductors 30, 31. The rotatable rollers 60, 62 or rotatable wheels press against each other and in this way ensure that the inner conductors 30, 31 are untwisted and arranged in one plane.

[0075] The plane extends between the two rollers 60, 62 and is parallel to the rotation axis of the rollers 60, 62. In the drawing, the plane in which the inner conductors 30, 31 are arranged or should be arranged before the insulation of the inner conductors 30, 31 is cut and removed runs horizontally.

[0076] The insulation stripping device 5 is also referred to as a cut-and-strip device.

[0077] In summary, it should be noted that terms such as "having", "comprising", etc. do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a plurality. In addition, it should be noted that features or steps that have been described with reference to one of the above exemplary embodiments may also be used in combination with other features or steps of the other exemplary embodiments described above.

[0078] Reference numerals list

[0079] 5 Insulation stripping device

[0080] 7 Mobile Devices

[0081] 10 Cables

[0082] 12 First sub-area

[0083] 14 Second sub-area

[0084] 20 Cable sheath

[0085] 30, 31 Inner conductor

[0086] 35, 36 strands

[0087] 38 Insulation

[0088] 40 blade

[0089] 42, 44 Insulation stripping knife

[0090] 46, 48 separation knife

[0091] 50, 52 pressure spring

[0092] 60 First Roll

[0093] 62 Second Roller

Claims

1. A method for removing the insulation (38) of an inner conductor (30, 31) of a cable (10) by means of an insulation stripping device (5), wherein: The method comprises: A cable (10) having a plurality of inner conductors (30, 31) is provided, wherein in a first sub-region (12) of the cable (10) a cable sheath (20) is removed, and in a second sub-region (14) of the cable (10) the cable sheath (20) is not removed; Inserting a first sub-region (12) of the cable (10) between a rotatable first roller (60) and a rotatable second roller (62) of an insulation stripping device (5); Moving the first roller (60) and / or the second roller (62) so that the first roller (60) and the second roller (62) move toward each other to clamp the first sub-region (12) of the cable (10) between the first roller (60) and the second roller (62); While the first sub-region (12) is clamped between the first roller (60) and the second roller (62), moving the cable (10) in a first direction so that the second sub-region (14) of the cable (10) moves away from the first roller (60) and the second roller (62); Moving the cable (10) in a second direction so that a second sub-region (14) of the cable (10) approaches the first roller (60) and the second roller (62), wherein the first direction extends opposite to the second direction and the first sub-region (12) is clamped between the first roller (60) and the second roller (62); Moving the stripping knife (42, 44) toward the first sub-region (12) of the cable (10) so that the stripping knife (42, 44) cuts into the insulation (38) of the inner conductor (30, 31); and The cable (10) is moved in a first direction to remove at least a portion of the insulation (38) of the inner conductors (30, 31).

2. The method according to claim 1, wherein: After the cable (10) has moved in a first direction and before the cable (10) moves in a second direction, the pressure of the first roller (60) and the second roller (62) on the first sub-region (12) of the cable (10) increases.

3. The method according to claim 1 or 2, wherein: The stripping knives (42, 44) and the separating knives (46, 48) for separating the cables (10) are parts of a knife head (40), wherein the method further comprises the step of moving the knife head (40) in a direction perpendicular to the first direction so as to arrange a first sub-region (12) of the cable (10) between the stripping knives (42, 44).

4. The method according to claim 1 or 2, wherein: While the first sub-region (12) of the cable (10) is clamped between the first roller (60) and the second roller (62), the first roller (60) and the second roller (62) are each moved in only one direction of movement, the two directions of movement of the first roller (60) and the second roller (62) being exactly opposite to each other.

5. The method according to claim 1 or 2, wherein: During clamping, the pressure of the first roller (60) and the second roller (62) on the first sub-region (12) of the cable (10) depends on the spacing of the first roller (60) and the second roller (62) from each other.

6. The method according to claim 1 or 2, wherein: The pressure with which the first roller (60) and the second roller (62) clamp the first sub-region (12) is adjusted independently of the distance between the first roller (60) and the second roller (62).

7. The method according to claim 6, wherein: The pressure with which the first roller (60) and the second roller (62) clamp the first sub-region (12) is adjusted pneumatically.

8. The method according to claim 1 or 2, wherein: While the first sub-region (12) is clamped between the first roller (60) and the second roller (62), the cable (10) is moved alternately in the first direction and the second direction a plurality of times.

9. The method according to claim 1 or 2, wherein: The cable (10) is moved alternately in the first direction and the second direction until the inner conductors (30, 31) of the cable (10) are arranged in one plane.

10. An insulation stripping device (5) for removing insulation (38) from an inner conductor (30, 31) of a cable (10), wherein: In a first sub-region (12) of the cable (10), a cable sheath (20) of the cable (10) is removed, and in a second sub-region (14) of the cable (10), the cable sheath (20) of the cable (10) is not removed, Wherein, the insulation stripping device (5) comprises: A rotatable first roller (60) and a rotatable second roller (62), wherein the first roller (60) and the second roller (62) are designed to clamp a first sub-region (12) of a cable (10) between the first roller (60) and the second roller (62), A moving device (7) for moving the cable (10) in a first direction and a second direction opposite to the first direction while the first sub-region (12) is clamped between the first roller (60) and the second roller (62), wherein when the cable (10) moves in the first direction, the second sub-region (14) of the cable (10) moves away from the first roller (60) and the second roller (62); when the cable (10) moves in the second direction, the second sub-region (14) of the cable (10) approaches the first roller (60) and the second roller (62); and An insulation stripping knife (42, 44) is used to remove the insulation (38) of the inner conductor (30, 31) of the cable (10), wherein the insulation stripping knife (42, 44) can be designed and arranged in the following manner: the insulation stripping knife (42, 44) cuts into the insulation (38) of the inner conductor (30, 31), and when the cable (10) moves along a first direction, the insulation (38) is removed from the inner conductor (30, 31).

11. The insulation stripping device (5) according to claim 10, further comprising: A cutting head (40), wherein the cutting head (40) has insulation stripping knives (42, 44) and separating knives (46, 48), and the cutting head (40) can be moved in a direction perpendicular to the first direction in such a way that a first sub-region (12) of a cable (10) reaches between the insulation stripping knives (42, 44).

12. The insulation stripping device (5) according to claim 10 or 11, wherein: The insulation stripping device (5) is constructed in such a way that while a first sub-region (12) of a cable (10) is clamped between a first roller (60) and a second roller (62), the first roller (60) and the second roller (62) each move only in one direction of movement, and the two directions of movement of the first roller (60) and the second roller (62) are exactly opposite to each other.

13. The insulation stripping device (5) according to claim 10 or 11, wherein: The insulation stripping device (5) is constructed in such a way that the pressure of the first roller (60) and the second roller (62) on the first sub-region (12) of the cable (10) can be increased while the first sub-region (12) of the cable (10) is clamped between the first roller (60) and the second roller (62). The pressure with which the first roller (60) and the second roller (62) clamp the first sub-region (12) depends on the distance between the first roller (60) and the second roller (62).

14. The insulation stripping device (5) according to claim 10 or 11, wherein: The insulation stripping device (5) is constructed in such a way that, while a first sub-region (12) of a cable (10) is clamped between a first roller (60) and a second roller (62), the pressure of the first roller (60) and the second roller (62) on the first sub-region (12) of the cable (10) can be increased without significantly changing the distance between the first roller (60) and the second roller (62).

15. The insulation stripping device (5) according to claim 14, wherein: The pressure of the first roller (60) and the second roller (62) on the first sub-region (12) of the cable (10) can be increased pneumatically.

16. The insulation stripping device (5) according to claim 10 or 11, wherein: The insulation stripping device (5) is constructed in such a way that the cable (10) can be moved alternately in a first direction and a second direction multiple times while the first sub-region (12) is clamped between a first roller (60) and a second roller (62).

17. The insulation stripping device (5) according to claim 10 or 11, wherein: The insulation stripping device (5) is constructed in such a way that the cable (10) can be moved alternately in a first direction and a second direction until the inner conductors (30, 31) of the cable (10) are arranged in one plane.

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