Abstract
An aligning device (15) for straightening a wire (11) which comprises an aligning system (20) having a first row of rollers (21) and a second row of rollers (31) which can be moved relative to one another. The aligning device (15) comprises a measuring unit (40) for determining a wire diameter and/or a tensile force measuring mechanism (70). A method for adjusting the aligning system (20) and a method for setting the aligning system (20), as well as a wire processing machine having at least one aligning device (15) are also disclosed.
Claims
1-31. (canceled)
32. A straightening device (15; 115; 215; 315) for straightening a wire (11) comprising: a straightening unit (20) with a first row of rollers (21), and a second row of rollers (31) which are movable relative to the first row of rollers (21), wherein the straightening device (15; 115; 215; 315) includes a measuring unit (40) for determining a wire diameter, and the measuring unit (40) is arranged on the straightening unit (20).
33. The straightening device (15; 115; 215; 315) according to claim 32, wherein the measuring unit (40) for determining the wire diameter is embodied as an ultrasonic sensor or as a laser sensor.
34. The straightening device (15; 115; 215; 315) according to claim 32, wherein the measuring unit (40) includes at least one measuring roller (41) and one pinch roller (43) arranged opposite the measuring roller (41), the measuring and pinch rollers (41, 43) are arranged in such a manner that the wire can be transported between the measuring roller (41) and the pinch roller (43), and a distance (A) between the measuring roller (41) and the pinch roller (43) is adjustable with a measuring roller drive (42) for moving the measuring roller (41).
35. The straightening device (15; 115; 215; 315) according to claim 32, wherein the measuring unit (40) for determining the wire diameter includes at least one sensor from the group consisting of: a travel sensor, a position sensor, a distance sensor, or a goniometer.
36. The straightening device (15; 115; 215; 315) according to claim 34, wherein the pinch roller (43) is arranged on the second row of rollers (31).
37. The straightening device (15; 115; 215; 315) according to claim 36, wherein, the second row of rollers (31) includes multiple rollers (34), and the pinch roller (43) is embodied as one of the multiple rollers (34).
38. The straightening device (15; 115; 215; 315) according to claim 32, wherein the straightening device (15; 115; 215; 315) has a control unit (50; 150; 250; 350; 450), and the control unit (50; 150; 250; 350; 450) includes a computing unit (52; 152; 252) and a memory unit (54; 154; 254).
39. The straightening device (15; 115; 215; 315) according to claim 38, wherein, the control unit (50; 150; 250; 350; 450) is connected to a database (59).
40. The straightening device (15; 115; 215; 315) according to claim 37, wherein the measuring unit (40) is connected to the control unit (50; 150; 250; 350; 450) for transmitting measurement data and the control unit (50; 150; 250; 350; 450) is connected to the measuring roller drive (42).
41. The straightening device (15; 115; 215; 315) according to claim 32, wherein the straightening unit (20) includes a setting drive (22), with which the first row of rollers (21) can be set relative to the second row of rollers (31), and the straightening unit (20) has a swivel drive (28) for adjusting an angle between a roller axis (25) of the first row of rollers (21) and a roller axis (35) of the second row of rollers (31).
42. The straightening device (15; 115; 215; 315) according to claim 32, wherein the straightening device (15; 115; 215; 315) includes a tensile force measuring means (70) for determining a wire tensile force acting on the wire (11).
43. The straightening device (15; 115; 215; 315) according to claim 32, comprising a monitoring device (100) for monitoring the straightening of the wire (11), and the monitoring device (100) is one of an optical, an acoustic or an airstream monitoring device (100).
44. The straightening device (15; 115; 215; 315) according to claim 43, wherein the monitoring device (100) comprises at least one camera (101).
45. A method for operating the straightening unit in the straightening device (15; 115; 215; 315) according to claim 32, wherein the method comprises the following step: providing a wire (11) between the first row of rollers (21) and the second row of rollers (31) in the straightening unit (20); determining the wire diameter of the wire (11) using a measuring unit (40); calculating a target value for setting the first row of rollers (21) relative to the second row of rollers (31) based on the determined wire diameter; setting the first row of rollers (21) relative to the second row of rollers (31) in accordance with the target value.
46. The method according to claim 45, wherein the steps of determining the wire diameter of the wire using the measuring unit (40); calculating the target value for setting the first row of rollers (21) relative to the second row of rollers (31) based on the determined wire diameter; and setting the first row of rollers (21) relative to the second row of rollers (31) in accordance with the target value.
47. The method according to claim 45, wherein a wire-specific parameter is taken into account for calculating the target value in the straightening unit (20).
48. The method according to claim 45, wherein after setting of the first row of rollers (21) relative to the second row of rollers (31), the first row of rollers (21) is opened relative to the second row of rollers (31) to relieve stress on the wire (11).
49. The wire processing machine (400) comprising the straightening device (15; 115; 215; 315) according to claim 32 and a second straightening device (15; 115; 215; 315) comprising: a straightening unit (20) with a first row of rollers (21), and a second row of rollers (31) which are movable relative to the first row of rollers (21), wherein the straightening device (15; 115; 215; 315) includes a tensile force measuring means (70) for determining a wire tensile force acting on the wire (11), wherein the straightening device (15; 115; 215; 315) according to claim 32 and the second straightening device are arranged with an offset of substantially 90° with respect to one another.
50. The wire processing machine (400) according to claim 49, wherein the wire processing machine (400) includes a wire feed unit (405).
Description
[0127] In the drawings:
[0128] FIG. 1 shows a side view of a first embodiment of a straightening device according to the invention with open straightening unit and a measuring unit for determining a wire diameter,
[0129] FIG. 2 shows a side view of the straightening device of FIG. 1 with set straightening unit,
[0130] FIG. 3 shows a side view of a further embodiment of the straightening device according to the invention with a tensile force measuring means,
[0131] FIG. 4 shows a side view of the straightening device of FIG. 3,
[0132] FIG. 5 shows a side view of a further embodiment of the straightening device of FIG. 1 and FIG. 2 according to the invention and with a tensile force measuring means according to FIG. 3 and FIG. 4,
[0133] FIG. 6 shows a side view of a further embodiment of the straightening device according to the invention of FIG. 5, and
[0134] FIG. 7 shows a side view of a wire processing machine according to the invention with a straightening device of FIG. 6.
[0135] FIG. 1 shows a straightening device 15 for straightening an electrical or optical wire 11, with a straightening unit 20, with a control unit 50 and with a monitoring device 100. The straightening unit 20 comprises a basis 22, on which a first row of rollers 21 with multiple rotatably mounted rollers 24 is arranged, and a second row of rollers 31, with multiple rotatably mounted rollers 34 is arranged. In this figure and in the following figures, one roller is denoted 24 as representative of the multiple rollers with the same reference numeral 24, and one roller is denoted 34 as representative of the multiple rollers with the same reference numeral 34. The straightening unit 20 represented is in an open state, wherein the wire 11 is passed between the rollers 24 and the rollers 34 and rests on the rollers 34 along the wire axis 12. The rollers 24 are arranged with an offset in respect of the rollers 34 along the wire axis 12. The first row of rollers 21 arranged on a first carrier 23 and the second row of rollers is arranged on a second carrier 33. The first carrier 23 has protrusions 26 and the second carrier 33 has recesses 36, which at least partially engage with each other. The straightening unit 20 comprises a setting drive 27 and a swivel drive 28, each of which is connected to the control unit 50. The setting drive 27 comprises a pneumatically controlled drive and sets the first row of rollers 21 to the second row of rollers 31 so that the distance between the first row of rollers 21 and the second row of rollers 31 decreases until the rollers 24 of the first row of rollers 21 touch the wire 11 and hold the wire 11 or until the wire 11 is clamped between the rollers 24 and the rollers 34. The swivel drive 28 comprises an adjustment spindle 29, which swivels the first row of rollers 21 through an adjustable angle with respect to the second row of rollers 31, so that a portion of the wire to be straightened 11 is clamped and/or retained firmly in the straightening unit 20.
[0136] The straightening device 20 comprises a measuring unit 40 for determining the wire diameter of wire 11, which is arranged on the straightening unit 20. The measuring unit 40 comprises a rotatably mounted measuring roller 41, which is arranged movably on the first carrier 23, and a measuring roller drive 42. The measuring unit 40 further comprises a rotatably mounted contact pressure roller 43, which is arranged fixedly on the second carrier 33. The contact pressure roller 43 is arranged substantially directly opposite the measuring roller 41, wherein the wire 11 is supported on the contact pressure roller 43 and is held thereby in the measuring unit 40 in the open state. The measuring roller 41 is located at a distance (Distance A) from the contact pressure roller 43 and is connected to the measuring roller drive 42, which sets the measuring roller 41 to the wire 11 and moves it towards the contact pressure roller 43. The measuring roller drive 42 is designed to move the measuring roller 41 away from the wire 11 and to move the measuring roller 41 away from the contact pressure roller 43. The measuring unit 40 and the measuring roller drive 42 are connected to the control unit 50. The measuring roller drive 42 comprises a pneumatic drive, with which the measuring roller 41 is pressed against wire 11 with a contact pressure, so that the wire 11 is pressed against the contact pressure roller 34.
[0137] FIG. 2 shows the previously described straightening device 15, wherein the first row of rollers 21 has already been set to the second row of rollers, so that the straightening unit 20 is already in a closed state. In this condition, the rollers 24 of the first row of rollers 21 lie on the wire 11. A travel sensor is arranged on the measuring roller drive 42 and calculates the distance travelled by the measuring roller 41 from the open state as shown in FIG. 1 to the closed state as shown here. This distance travelled by the measuring roller 41 is transmitted to the control unit 50 as measurement data. The control unit 50 comprises a computing unit 52 and a memory unit 54, which are integrated in the control unit 50 and connected to each other. The control unit 50 is connected to a database 59. The control unit 50 transmits the received measurement data to the computing unit 52. The computing unit 52 uses the transmitted measurement data to determine the wire diameter of the wire 11 and the distance A between the measuring roller 41 and the contact pressure roller 43, which corresponds to the wire diameter of wire 11, and from the determined wire diameter calculates a target value for setting the first row of rollers 21 to the second row of rollers 31. In this process, the computing unit 52 takes account of wire-specific parameters of wire 11, which the computing unit retrieves either from the memory unit 52 or from the database 59. The computing unit 52 generates a control command for setting the first row of rollers 21 to the second row of rollers 31 on the basis of the calculated target value. The calculated target value and/or the generated control command is then stored in the memory unit 54 and/or in the database 59. Alternatively, the computing unit retrieves a control command for the setting drive 27 from the memory unit 54 or from the database 59, which corresponds to the calculated wire diameter of the wire 11. The control unit 50 transmits the control command to the setting drive 27. The setting drive 27 sets the first row of rollers 21 to the second row of rollers 31 in accordance with the calculated target value. Then, the first row of rollers 21 is swivelled towards the second row of rollers 34 by means of the swivel drive 28, so that an angle between the roller axis 25 of the first row of rollers 21 and the roller axis 35 of the second row of rollers 31 is set. Consequently, wire 11 is clamped between the first row of rollers 21 and the second row of rollers 31, following which the straightening of the wire 11 is carried out by transporting the wire 11 along the wire axis 12, thereby producing a sufficiently straightened wire. Because of the angle, the wire 11 is straightened degressively, i.e. it is initially subjected to relatively intense deformation, and is deformed with decreasing amplitude by the subsequent rollers. Consequently, the straightened wire loses its “shape memory” for the subsequent processing (not shown). A sufficiently straightened wire 11 is identifiable as such in that after straightening it can be inserted in a predefined space, a cylindrical lumen, for example, but does not protrude beyond the boundaries of this space. It should also be noted that if the transport movement of the wire 11 through the straightening unit 20 is interrupted, the shape memory of wire 11 causes it to recreate the plastic deformation it underwent between the rollers 24 and 34. For this reason, if the transport movement of the wire 11 is interrupted, the tension is removed from the straightening units 20 by opening the first row of rollers 21 relative to the second row of rollers 31 to such an extent that wire 11 does not return to any plastic deformation. The straightening units 20 are reset to the previously determined target value as soon as the transport movement of the wire 11 resumes. In this way, deformations of the wire when the transport stops are reliably prevented.
[0138] The straightening device 15 comprises a monitoring device 100 for monitoring the straightening of wire 11. The monitoring device 100 comprises two cameras 101 and 102, which are connected to the control unit 50 and are arranged around the straightened wire 11 (see FIG. 1). The two cameras 101 and 102 are offset by a (spatial) angle of 90° with respect to one other. The cameras 101 and 102 produce check data in that the cameras 101 and 102 record multiple images. The two cameras 101 and 102 are arranged in the area around the straightened wire 11 so that the angular plane of the respective camera capture a predefined space, for example a cylindrical lumen and record images of the straightened wire 11 in this predefined space, and then transmit them as check data to the control unit 50. The images are processed further in the control unit 50, and are optionally taken into account in the calculation of the target value for setting the first row of rollers 21 to the second row of rollers 31.
[0139] The steps described with the aid of FIG. 1 and FIG. 2 for setting the first row of rollers 21 relative to the second row of rollers 31 of the straightening unit 20 are performed continuously and optionally repeated multiple times until a sufficiently straightened wire can be produced. The previously described measuring unit 40 may be positioned at a distance from the straightening unit 20 and may thus be an independent measuring unit (not shown) arranged in the straightening device 15.
[0140] FIG. 3 shows a further embodiment of the straightening device 115 for straightening an electrical or optical wire 11 with a straightening unit 120, with a control unit 150 and with a monitoring device 100. In contrast to the previously described embodiment of the straightening device, the straightening device 115 described hereinafter has a tensile force measuring means 70 for determining a wire tensile force acting on the wire 11.
[0141] In the following description relating to FIG. 3 and FIG. 4, reference is made to FIGS. 1 and 2 in the case of identical components.
[0142] The tensile force measuring means 70 includes a group of rollers 74, which is connected to the control unit 150. The group of rollers 74 comprises a support 75 and a contact pressure roller 85, wherein the support 75 is constructed in two parts and comprises a first support roller 80 and a second support roller 81, each of which is mounted rotatably on the support 75. The two support rollers 80 and 81 are arranged at a distance from one another. Wire 11 is arranged in the group of rollers 74, wherein the wire 11 is positioned on the two support rollers 80 and 81. The contact pressure roller 85 is arranged on the wire 11. In this arrangement, the contact pressure roller 85 bears on the wire 11 in such manner that at least a portion of the wire 11 is pressed between the first support roller 80 and the second support roller 81, so that the guided wire 11 is deflected substantially in a V-shape. The contact pressure roller 85 is advantageously movable relative to the two support rollers 80 and 81 with the aid of a contact pressure roller drive 87, so that the wire 11 is deflected by the contact pressure roller 85 as it is transported through the group of rollers 74. A sensor device 90 is arranged on the contact pressure roller 85, and measures the radial force acting on the contact pressure roller 85 when the contact pressure roller 85 is deflected. For this purpose, a force transducer is arranged between the contact pressure roller 85 and the contact pressure roller drive 86 in order to measure the radial force acting on the contact pressure roller 85. The force transducer is equipped with multiple strain gauges, whose voltages can be tuned with the aid of a Wheatstone bridge. The contact pressure roller 85 is arranged on a carriage and is movable along a carriage guide (not shown). The distance D between the contact pressure roller 85 and the support rollers 80 and 81 is adjustable using the contact pressure roller drive 86. The contact pressure roller 85 is mounted rotatably on the carriage. The sensor device 90 is connected to the control unit 150 and transmits the radial force acting at the contact pressure roller 85, which is measured by the strain gauge, and the previously described distance D to the control unit 150 as measurement data. In addition, the wire diameter measured as described in FIG. 1 and FIG. 2 and the distance between the support rollers 80 and 81 are stored in the control unit 150. The computing unit 152 contained in the control unit 150 calculates an actual value for the wire tensile force acting on the wire 11 from the measurement data and the stored data. The computing unit 152 is connected to the memory unit 154 and the database 159, so that the computing unit 152 can retrieve wire-specific parameters associated with the wire 11 and may optionally take them into account when calculating the wire tensile force acting on the wire 11. The computing unit 152 calculates a target value for the wire tensile force of the wire 11 to be straightened or retrieves a target value for the wire tensile force of wire 11 from the memory unit 154 or the database 159. Then, the computing unit 152 performs an actual value-target value comparison for the wire tensile force and generates a control command for the swivel drive 28 based on the actual value-target value comparison.
[0143] If the actual value of the wire tensile force matches the target value, angle β does not have to be changed. If the actual value of the wire tensile force is less than the permitted target value, angle β is changed by the swivel drive 28 in such manner that the wire 11 is smoothed more intensely, so that a greater wire tensile force results therefrom as the wire is advanced. If the actual value of the wire tensile force is greater than the permitted target value, angle β is opened correspondingly be the swivel drive 28, so that a lesser wire tensile force results therefrom as the wire is advanced. After the described correction of angle β the wire tensile force must be measured again, followed by another actual value-target value comparison, possibly several times. The objective is to comply with the permitted target value as closely as possible.
[0144] The control command described previously is transmitted to the swivel drive 28 by the control unit 150 causing the swivel drive to swivel the first row of rollers 21 relative to the second row of rollers 31 by means of the adjustment spindle 29, so that angle β between the roller axis 25 of the first row of rollers 21 and the roller axis 35 of the second row of rollers 31 derived from the result of the calculation by the control unit 150 is adjusted. The calculated target value of angle β may be stored in the memory unit 154 or in the database 159.
[0145] FIG. 4 shows the straightening device 115 according to FIG. 3 with a first row of rollers 21 swivelled towards the second row of rollers 31 in the straightening unit 20, wherein the roller axis 25 of the first row of rollers 21 is swivelled through an angle β towards the roller axis 35 of the second row of rollers 31. The swivelling action causes a section of the wire 11 in the straightening unit 20 to be bent, wherein the rollers 24 of the first row of rollers 21 are arranged so as to be offset with respect to the rollers 34 of the second row of rollers 31. This causes the wire to be held firmly between the rollers 24 and the rollers 34. If the wire 11 in the straightening unit 20 is pulled, the radial force acting on the contact pressure roller 85 changes, which alters the deflection of the contact pressure roller 85. The resulting further measurement data measured by the sensor device 90 is transmitted to the control unit 150. A new target value generated in the computing unit 152 for the wire tensile force acting on the wire 11 using the further measurement data as previously described, and the steps described previously are repeated until the swivelling of the first row of rollers 21 relative to the second row of rollers 31 is optimised incrementally in such manner that the tensile force corresponds to a value that correlates to a sufficiently straightened wire 11 and which is permissible for the wire, that is to say it does not overstretch or destroy the wire. The defined steps are repeated and carried out continuously. If required, the new target value is assigned to the wire or to the wire tensile force for the wire 11 and is saved in a table in the memory unit 154 or the database 159.
[0146] The straightening device 115 described comprises a monitoring device 100 for monitoring the straightening of wire 11, as was described previously in FIG. 1 and FIG. 2.
[0147] FIG. 5 shows a straightening device 215 according to FIG. 1 and FIG. 2. This straightening device 215 is additionally equipped with a tensile force measuring means 70, as was described with reference to FIG. 3 and FIG. 4.
[0148] In the following description identical components will be denoted with the reference numerals used in FIGS. 1 to 4.
[0149] The straightening device includes a straightening unit 20. The measuring unit 40 is arranged on this straightening unit (see also in FIG. 1 and FIG. 2). This is followed in the transport direction of the wire 11 by the tensile force measuring means 70, as was described with reference to the straightening device 115 according to FIG. 3 and FIG. 4. The wire 11 is straightened in this straightening device 215, as was described in detail in FIG. 1 and FIG. 2 and in FIG. 3 and FIG. 4. The straightening device 215 has a control unit 250, which is designed to generate the control commands as generated by control unit 50 according to FIG. 1 and FIG. 2 as well as the control commands as generated by the control unit 250 according to FIG. 3 and FIG. 4, and to transmit them to the previously described drives. For this purpose, the control unit 250 has a computing unit 252 which is able to carry out the calculations of the computing unit according to FIG. 1 and FIG. 2 as well as the calculations of the computing unit according to FIG. 3 and FIG. 4 and to combine them if necessary. After the wire 11 is provided in the straightening unit 20, the wire diameter of the wire 11 is determined with the measuring roller 41 and the contact pressure roller 43 of the measuring unit 40. Then, the measurement data measured by the measuring unit 40 are transmitted to the computing unit 252 and a target value for setting the first row of rollers 21 to the second row of rollers 31 is calculated based on the determined wire diameter. The control command which is generated on the basis of the target value is transmitted to the setting drive 27, and the first row of rollers 21 is set as described previously. Then, the wire 11 is provided in the tensile force measuring means 70 by feeding the wire 11 through the group of rollers 74. Then, the radial forces acting on the contact pressure roller 85 is measured with the sensor device 90 and the measurement data is transmitted to the control unit 250, which calculates an actual value with the computing unit 252 and/or carries out an actual value-target value-comparison. Subsequently, the computing unit 252 determines a wire tensile force on wire 11, as was described earlier in FIG. 3 and FIG. 4. Then, the first row of rollers 21 of the straightening unit 20 is set to the second row of rollers 31 of the straightening unit 20 using the calculated actual value or the actual value-target value comparison. The steps lust described are repeated and performed continuously. The control unit 250 includes a memory unit 254 and a database 259. The straightening device 215 described comprises a monitoring device 100 for monitoring the straightening of the wire 11, as was described earlier in FIG. 1 and FIG. 2.
[0150] FIG. 6 shows a further embodiment of the straightening device 315 according to the invention with a straightening device as represented in FIG. 5 and with a further straightening unit 60. In the following description identical components will be denoted with the reference numerals used in FIGS. 1 to 5. The further straightening unit 60 is offset by 90° about its longitudinal axis with respect to the first straightening unit 20 and is arranged between the first straightening unit 20 and the group of rollers 74. The further straightening unit 60 includes substantially the same components as the straightening unit 20. Wire 11 is provided between the first row of rollers 62 and the second row of rollers 63 of the further straightening unit 60 and held firmly in place by the rollers thereof. The measuring roller drive 65 of the measuring unit 66 for determining the wire diameter of wire 11 is connected to the control unit 350 for the purpose of exchanging measurement data. The setting drive 67 and the swivel drive 68 of the further straightening unit 60 are connected to the control unit 250 in order to receive control commands. The described straightening device 315 as represented in FIG. 6 comprises a monitoring device 100 for monitoring the straightening of the wire 11 as was described earlier in the notes on FIG. 1 and FIG. 2.
[0151] FIG. 7 shows a side view of a wire processing machine 400 according to the invention, with a straightening device 315 according to FIG. 6. In the following description identical components will be denoted with the reference numerals used in FIGS. 1 to 6. The wire processing machine 400 has a wire feed 402 and a wire feed unit 405, wherein the wire feed unit 405 advances the wire that is to be straightened 11 through the one straightening unit 20, through the further straightening unit 60 and through the tensile force measuring means 70. The wire feed unit 405 includes a guide tube 406 for guiding the wire 11 and includes a conveyor drive 407 for advancing the wire 11 through the wire processing machine 400. The conveyor drive 207 is connected to the control unit 450. As previously described herein, the control unit 450 generates control commands based on the measurement data from measuring unit 40 for determining the wire diameter and/or based on the measurement data from the tensile force measuring means 70 for determining the wire tensile force. With these control commands, the conveying speed of the wire 11 through the straightening device 315 is controlled so that a sufficiently straightened wire is produced.
[0152] These steps as described in FIG. 1 to FIG. 7 may optionally be applied in a computer-implemented method for automatically determining and generating datasets and/or control commands for controlling the straightening device described herein and/or for controlling the wire processing machine described herein, which executes a method described herein for straightening or adjusting the wire 11. The datasets and/or control commands are stored in a computer program product and stored on a computer-readable medium.
LIST OF REFERENCE NUMERALS
[0153] 11 Wire [0154] 12 Wire axis [0155] 15 Straightening device [0156] 20 Straightening unit [0157] 21 First row of rollers [0158] 22 Basis [0159] 23 First carrier [0160] 24 Rollers from 21 [0161] 25 Axis of rollers from 21 [0162] 26 Protrusion [0163] 27 Setting drive [0164] 28 Swivel drive [0165] 29 Adjustment spindle [0166] 31 Second row of rollers [0167] 33 Second carrier [0168] 34 Rollers from 31 [0169] 35 Roller axis from 31 [0170] 36 Recess [0171] 40 Measuring unit [0172] 41 Measuring roller [0173] 42 Measuring roller drive [0174] 43 Pinch roller [0175] 50 Control unit [0176] 52 Computing unit [0177] 54 Memory unit [0178] 59 Database [0179] 60 Additional straightening unit [0180] 62 First row of rollers from 60 [0181] 63 Second row of rollers from 60 [0182] 65 Measuring roller drive [0183] 66 Measuring unit [0184] 67 Setting drive [0185] 68 Swivel drive [0186] 70 Tensile force measuring means [0187] 74 Group of rollers [0188] 75 Support [0189] 80 First support rollers [0190] 81 Second support rollers [0191] 85 Contact pressure roller [0192] 87 Contact pressure roller drive [0193] 90 Sensor device [0194] 100 Monitoring device [0195] 101 Camera [0196] 102 Second camera [0197] 115 Straightening device [0198] 150 Control unit [0199] 152 Computing unit [0200] 154 Memory unit [0201] 159 Database [0202] 215 Straightening device [0203] 250 Control unit [0204] 252 Computing unit [0205] 254 Memory unit [0206] 259 Database [0207] 315 Straightening device [0208] 350 Control unit [0209] 400 Wire processing machine [0210] 402 Wire feed [0211] 405 Wire feed unit [0212] 406 Guide tube [0213] 407 Conveyor drive [0214] 450 Control unit [0215] A Distance between 41 and 43 [0216] D Distance between 80 or 81 and 85 [0217] β Angle between 25 and 35