Straightening device for a cable processing machine and method for operating a straightening unit

Abstract

To provide a correction device that can improve linearity of a line.SOLUTION: A correction device 15 for linearizing a line 11 is provided with: a correction unit 20 having a first roller row 21 and a second roller row 31 which can move to each other; a measurement device 40 that measures a diameter of the line 11; a tension measurement device 70 that measures line tension acting on the line 11; a supplying / driving part 27 that supplies the first roller row 21 to the second roller row 31 so that a distance between the first roller row 21 and the second roller row 31 becomes equal to a setting value calculated based on the measured diameter; and a turning / driving part 28 that turns the first roller row 21 with respect to the second roller row 31, on the basis of a result of comparison of the measured value of the line tension with a prescribed setting value of the line tension.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a straightening device for straightening a line, a method for operating a straightening unit, and a cable processing machine. [Background technology]

[0002] A cable processing machine comprises several stages in which the cable or line is gradually processed into the final product. The lines are typically presented to the cable processing machine on a spool or as a bundle. In a first step, they are unwound from the spool or bundle. The unwound cables are more or less curved and twisted, which makes further processing steps in the cable processing machine difficult. In order to straighten the lines as much as possible, they are typically pulled through a straightener. The cable processing machine must be able to process a wide variety of lines.

[0003] Various devices for straightening lines are known from the prior art. In this case, by line is understood a quasi-endless line or even a line section of a quasi-endless line, which can have various structures. The line can be a single conductor consisting of several strands or a solid conductor, which can be made of copper, another current-conducting alloy or a light-conducting material. The line can also have a line insulation.

[0004] These devices require the line to be sufficiently straightened. A sufficiently straightened line can be recognized by the fact that, after being straightened, it can be introduced and passed through a predetermined space, for example a cylindrical envelope space, without leaving the boundaries of this predetermined space. Thus, for each line to be straightened, a separate predetermined space can be defined, which represents an essential quality criterion for each straightened line, or for each line type and cable processing machine.

[0005] EP 1 339 636 A1 discloses a straightening unit with an upper and a lower row of rollers. These two rows of rollers can be moved relative to each other and the distance between them can be monitored with sensors by a measuring device. The measuring device can be connected to a control device. As a set value for the roller spacing the already known or already measured outer diameter of the cable can be taken into account. It is proposed to connect the measuring device to a storage unit and to record the actual value and / or the deviation of the actual value from the set value. It is also proposed to monitor the set angle between the two rows of rollers by means of a suitable sensor. All set values ​​can be stored in the control device as mathematical functions or as tables. EP 1 339 636 A1 also shows a generic straightening unit.

[0006] A drawback of the known devices is that in these devices straightening of the line is complicated and the setting of the straightening device in the device is performed with insufficient precision. For example, the distance between the rows of rollers may vary partially along the line to be straightened if the line to be straightened is not precisely located between the rows of rollers. This leads to an inadequate straightening of the line and, as a result, to further work in further line processing. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] European Patent Publication No. 3 184 191 A1 [Patent Document 2] European Patent Publication No. 2 399 856 A1 Summary of the Invention [Problem to be solved by the invention]

[0008] The object of the present invention is to eliminate one or more of the drawbacks of the prior art. In particular, a straightening device should be made which improves the straightening of lines, in particular electrical or optical lines. A further object is to create a method for providing or setting a straightening unit in a straightening device which improves the straightening of lines, in particular electrical or optical lines. Furthermore, a cable processing machine should be made which allows for improved straightening of lines. [Means for solving the problem]

[0009] This object is achieved by a device and a method as defined in the independent claims. Advantageous further developments are given in the drawing, the description and in particular in the dependent claims.

[0010] The straightening device according to the invention for straightening a line comprises a straightening unit having a first row of rollers and a second row of rollers movable relative to each other, the straightening device having a measuring device for determining the line diameter.

[0011] The measured line diameter allows the operation of the first roller train relative to the second roller train to be adapted to the respective line provided in the straightening unit, so that overloading of the line in the feed state of the straightening unit is prevented. By means of the measuring device, at least one specific value of the line can be determined directly during the operation of the straightening device. At the same time, this results in an improved straightening of the line in the straightening device.

[0012] The roller train has at least two rollers, which are advantageously arranged on a common carrier. The second roller train is typically the roller train on which the line rests and which is directly and immovably connected to the straightening unit when inserted into the straightening unit.

[0013] The measuring device is preferably arranged on the straightening unit. In this way, the line diameter is determined directly in the straightening unit, thereby determining the specific value of the line provided in the straightening unit. In this way, for example, a quasi-endless line can be at least partially characterized directly in the straightening unit and several times on different line sections during the straightening process. No additional measuring device is required to determine the line diameter away from the straightening device.

[0014] The measuring device for determining the line diameter is preferably configured as an ultrasonic sensor, so that the line diameter can be determined contact-free.

[0015] Alternatively, the measuring device for determining the line diameter is formed as a laser sensor. Since the laser sensor also determines the line diameter of the line contactlessly, the laser sensor can be easily arranged in the vicinity of the line. Laser sensors typically have a high long-term stability. They can be easily integrated into the straightening device and are easy to adjust.

[0016] In particular, the laser sensor is formed as a laser curtain, which typically consists of several laser beams arranged side by side, which can be easily positioned in different parts of the measurement area of ​​the line, allowing the line diameter to be determined precisely.

[0017] Preferably, the measuring device has at least one measuring roller and a pressure roller arranged opposite the at least one measuring roller, which rollers are arranged such that the line can pass between the at least one measuring roller and the pressure roller. The distance between the at least one measuring roller and the pressure roller can be adjusted by a measuring roller drive for moving the at least one measuring roller. The line diameter can be determined by means of the distance between the at least one measuring roller and the pressure roller. The measuring roller drive also allows the distance between the at least one measuring roller and the pressure roller to be increased, so that the line can be easily inserted between the measuring roller and the pressure roller. With the measuring roller drive, the distance can be decreased so that the at least one measuring roller contacts the provided line with its measuring roller circumference and, if necessary, presses it against the pressure roller. The at least one measuring roller can be rotatably mounted on a carrier, so that the line is protected when passing through the at least one measuring roller and the pressure roller. Alternatively or additionally, the pressure roller may be rotatably mounted on a carrier of the second row of rollers, so that the line surface is subjected to minimal stress as it passes over it.

[0018] In particular, the measuring roller drive is a pneumatic drive, by means of which the at least one measuring roller can easily apply a defined contact pressure to the line to be straightened.

[0019] The measuring device preferably has at least one sensor from the group of displacement sensors, position sensors, distance sensors to determine the line diameter. Using these sensors, the distance between the at least one measuring roller and the pressure roller can be determined. The line diameter can be easily determined based on the measurement data from the sensors.

[0020] Preferably, the pressure roller is arranged in the second roller row, so that the pressure roller can be reliably connected on its axis to the straightening unit, so that the line to be straightened rests stably on the pressure roller.

[0021] In particular, the second roller train has a plurality of rollers, and the pressure roller of the measuring device is formed as one of the plurality of rollers, so that the pressure roller is directly attached to the second roller train, which is kept stable on the straightening unit.

[0022] Preferably, the orthotic device has a control device. The control device can be connected to at least one drive of the orthotic device described herein, so that the at least one drive can be automatically controlled. The components or parts of the orthotic device connected to the control device are connected to the control device for the exchange of measurement data, sensor data and / or control data or control commands. This exchange can be performed using a cable connection between the control device and the components or parts and / or can be performed wirelessly via WLAN, LAN, Bluetooth, or other wireless exchange options.

[0023] Preferably, the control device has a calculation unit and a storage unit. The calculation unit and the storage unit are connected to each other. The calculation unit is formed to generate at least one control command for at least one drive of the straightening device and, if necessary, transmit it to the storage unit. The storage unit stores the at least one storage command. The calculation unit receives measurement data from the measuring device and determines the setting values ​​directly or indirectly therefrom. Furthermore, the setting values ​​for supplying the first roller train relative to the second roller train can be stored in the storage unit, which can be called up by the calculation unit. The calculation unit is thus suitable for generating a control command for at least one drive in the straightening unit based on the setting values.

[0024] In particular, the control device is connected to a database. Thus, control commands, externally generated set values ​​or externally generated line-specific parameters can typically be called up from the database by the control device. These stored set values, control commands and / or line-specific parameters can be used in the calculation unit to generate control commands for at least one drive in the orthodontic device. Furthermore, the database is suitable for storing the aforementioned set values. If necessary, these stored set values ​​are transmitted to the calculation unit of the control device and further processed there.

[0025] The measuring device is preferably connected to the control device for transmitting the measurement data, so that the measurement data determined by the measuring device can be transferred to the control device and the computing unit and further processed there.

[0026] In particular, the measuring device is connected to the control device and transmits the line diameter or a corresponding value, so that the control device can either have the line diameter value transmitted directly or use the corresponding value to determine the line diameter in a calculation unit.

[0027] The control device is preferably connected to the measuring roller drive. The control device controls at least the measuring roller drive, which moves the at least one measuring roller closer to the pressure roller in a controlled manner. When the at least one measuring roller approaches the pressure roller, the at least one measuring roller contacts a line arranged between the at least one measuring roller and the pressure roller. The distance between the at least one measuring roller and the pressure roller is transmitted from the measuring device to the control device.

[0028] The straightening unit preferably comprises a supply drive capable of supplying the first roller train to the second roller train.

[0029] Thus, the first roller train can be moved relative to the second roller train to set a determined distance between the first and second roller trains, which distance is due to the line diameter of the corresponding line introduced between the first and second roller trains. After feeding, the line is held or enclosed between the first and second roller trains.

[0030] Preferably, the distance of a previous measurement of the line diameter of the line is taken into account by the measurement. For this purpose, the control device can be connected to the feed drive and can send corresponding control commands to the feed drive.

[0031] The set value of the distance can be continuously compared with an actual value of the distance, which is determined on the basis of the line diameter.For this purpose, a measuring device can be provided in the feed drive.

[0032] In particular, the feed drive is formed as a pneumatic drive, whereby the feeding of the straightening device takes place in a controlled manner and a suitable holding pressure is applied to the line to be straightened.

[0033] The straightening unit preferably has a swivel drive for setting the angle between the roller axis of the first roller row and the roller axis of the second roller row. The line to be straightened is clamped at least partially between the first roller row and the second roller row based on the set angle so that the line to be straightened is partially held in the straightening unit. This improves the straightening of the line outside the straightening unit. The swivel drive is typically connected to a control device so that the control device can send control commands to the swivel drive. Thus, the clamping of the line can be continuously controlled and at the same time the clamped line is protected.

[0034] The roller row has a number of rollers arranged essentially along the conveying direction of the line in the straightening device. The rollers of the roller row can be arranged at a distance from each other and offset from each other along the conveying direction of the line. The roller axis of the first roller row described here is a mathematical axis that extends along the conveying direction of the line from a first roller of the first roller row to a further roller of the first roller row. The roller axis of the second roller row described here is a mathematical axis that extends along the conveying direction of the line from a first roller of the second roller row to a further roller of the second roller row. In the open state of the straightening device, the roller axis of the first roller row is typically aligned along the conveying direction of the line essentially parallel to the roller axis of the second roller row.

[0035] The straightening device preferably has a tension measuring unit for determining the line tension acting on the line, which further improves the straightening of the line. Further specific values ​​of the line can be determined in the straightening device, which further improves the supply of the first roller train to the second roller train in the straightening unit described herein or below, so that the line is not overstretched, for example, during straightening.

[0036] The first roller train preferably comprises a plurality of rollers, the rollers of the first roller train being arranged offset with respect to the rollers of the second roller train. Thus, it is easy to hold the line between the rollers of the first roller train and the rollers of the second roller train, since the rollers of the first roller train are at least partially arranged between the rollers of the second roller train in the supplied state. A targeted bending or targeted stretching of the line in the straightening unit is possible, whereby undesired tensions in the line can be eliminated. During stretching, the line is purposefully deformed in different spatial directions in order to release tensions in the line.

[0037] In particular, the rollers of the first roller train and the rollers of the second roller train are respectively arranged on a carrier. One of the carriers has a protrusion and one of the carriers has a recess, the protrusion being formed to engage with the recess. Thus, a compact straightening unit can be produced. When spaced apart from each other, the two carriers ensure that when the first roller train is fed into the second roller train, the line is not clamped between the two carriers, but is forcibly arranged against the rollers of the first roller train and the rollers of the second roller train.

[0038] Another aspect of the present invention relates to a method of operating a straightening unit, in particular a straightening unit in a straightening device as described herein, the method comprising the steps of providing a line between a first roller row and a second roller row in the straightening unit, determining a line diameter of the line using a measuring device, calculating a setting value for feeding the first roller row relative to the second roller row based on the determined line diameter, and feeding the first roller row relative to the second roller row in accordance with the setting value.

[0039] This allows the first roller row to be fed against the second roller row depending on the line provided on the straightening unit, thereby improving the straightening of the line.

[0040] Preferably, the steps of determining the line diameter of the line by means of a measuring device, calculating a setting value for feeding the first roller row relative to the second roller row based on the determined line diameter, and feeding the first roller row relative to the second roller row according to the setting value are repeatedly performed, whereby the feeding is checked several times in the straightening unit.

[0041] In particular, the aforementioned steps are carried out continuously so that the straightening unit can be set continuously, thus the line diameter is continuously determined in the straightening unit, so that a constant straightening quality of the line is ensured.

[0042] Preferably, line-specific parameters are taken into account for calculating the setpoints in the straightening unit, which makes it possible to take into account line-specific parameters, typically the structure of the line itself, e.g. the number of line strands, and / or information about the line insulation, e.g. the material of the line insulation, for the calculation of the setpoints for feeding the first roller train to the second roller train.

[0043] Preferably, after the first roller row is fed against the second roller row, the first roller row is released against the second roller row to relax the line, thus preventing permanent plastic deformation of the line portion of the line when the straightening unit is in the feeding state.

[0044] Advantageously, when the conveying movement of the line through the straightening unit is interrupted, the first roller row is released against the second roller row in order to relax the line. It has been shown that even short interruption times lead to plastic deformations of the line. These plastic deformations make further processing of the line almost impossible.

[0045] Another aspect of the invention relates to a straightening device for straightening a line, comprising a straightening unit having a first roller row and a second roller row movable relative to each other. The straightening device has a tension measuring part for determining the line tension acting on the line. The straightening unit is formed as described above. By means of the tension measuring part, the line tension for each line to be straightened can be determined in the straightening device, thereby preventing excessive stretching of the line during the straightening thereafter. At the same time, the straightening of the line in the straightening device is subsequently improved, so that a well-straightened line can be produced with the straightening device.

[0046] The tension measuring section preferably has a roller group having a support and a pressure roller. The line to be straightened is arranged between the support and the pressure roller of the roller group, and the pressure roller can be arranged stationary. The support is suitable for keeping the line stable in the tension measuring section.

[0047] In particular, the support is designed in two parts: a first part of the support can be spaced apart from a second part of the support, so that the pressure roller can be at least partially arranged between the two-part support.

[0048] The support preferably has two support rollers, so that the line to be straightened can easily pass through the rollers without the line to be straightened being damaged.

[0049] In particular, the support has a U-shaped structure to prevent the line from slipping off during tension measurement.

[0050] The support and the roller group are in particular arranged in such a way that the line guided between the support and the pressure roller is deflected by the fixed pressure roller, in this way the line to be straightened is biased and positioned in the roller group so that the tension measurement can immediately be started.

[0051] The pressure roller is preferably connected to a sensor device for measuring the force acting on the pressure roller, the force acting on the pressure roller being determined by the sensor device, so that the line tension can be determined on the basis of this measured force.

[0052] The sensor device preferably comprises a force recorder, which may be formed as a bending bar or the like and which may be connected to the pressure roller. By means of the force recorder the line tension can be determined with high precision.

[0053] The sensor device is preferably arranged on the pressure roller, so that the force acting on the pressure roller can be easily measured directly on the pressure roller.

[0054] In particular, the sensor device comprises at least one strain gauge arranged on the force recorder or at the mounting of the pressure roller to determine the radial force acting on the pressure roller, which can be operated using a Wheatstone measuring bridge or the like, whereby a particularly accurate determination of the radial force acting on the pressure roller is made.

[0055] In particular, the force recorder comprises several strain gauges, so that the measurement sensitivity of the sensor device can be improved.

[0056] Alternatively or additionally, the support has at least one strain gauge which can be connected to the aforementioned Wheatstone measurement bridge, which can further improve the measurement sensitivity of the tension measurement.

[0057] Preferably, at least the pressure roller is movable relative to the support, in this way it is possible to deduce the line tension present in each case on the basis of the movement of the pressure roller relative to the support.

[0058] In particular, the sensor device is a displacement sensor system configured to determine the distance from the support to the pressure roller, by means of which the line tension can then be easily and reproducibly determined.

[0059] Alternatively, the displacement sensor system determines the deviation of a known distance between the support and the pressure roller, which can be preset according to the line diameter of the line, and the deviation of this distance can then be determined when performing the tension measurement.

[0060] In particular, the pressure roller is arranged pivotably relative to the support, the distance or the deviation in distance from the support to the pressure roller being able to be determined by means of the deflection of the pivoting movement of the pressure roller.

[0061] The pressure roller is preferably arranged so that it can be moved linearly relative to the support. In this way, the movement of the pressure roller, which can be easily performed, is carried out in the tension measuring section, on the basis of which the distance or the deviation of the distance can be determined accurately. For this purpose, the pressure roller can be connected to a pressure roller drive. The pressure roller drive can be driven, for example, pneumatically, electrically or mechanically, so that the distance between the support and the pressure roller can be set reproducibly.

[0062] The sensor arrangement is advantageously arranged between the pressure roller and the pressure roller drive and connected thereto, so that the measuring sensitivity of the sensor arrangement is further improved.

[0063] The straightening unit preferably has a swivel drive for setting the angle between the roller axes of the first and second roller rows. Based on the set angle between the roller axes of the first and second roller rows, the line arranged between the first and second roller rows can be bent or straightened in a defined manner, so that the line tension can be reproducibly determined. The roller axes of the first and second roller rows run approximately along the alignment of the rollers of the respective roller rows.

[0064] The straightening unit preferably has a feed drive, in particular a feed drive as described herein, which is capable of setting the first roller row relative to the second roller row. Feeding the straightening unit with the feed drive allows the straightening unit to be set in a defined manner.

[0065] The straightening device preferably has a control device connected to the tension measuring unit for transmitting the measurement data. The measurement data determined by the sensor device are transmitted to the control device and, optionally, further processed there. This control device is in particular connected to the above-mentioned control device or is integrated with the above-mentioned control device.

[0066] The control device is preferably connected to the slewing drive. The measurement data determined by the tension measuring unit are further processed in the control device to form control commands and transmitted to the slewing drive, so that the slewing drive can set the straightening unit according to the measured line tension.

[0067] The control device preferably comprises a calculation unit and a storage unit, so that the transmitted measurement data can be easily further processed in control commands.

[0068] In particular, the calculation unit is configured to at least determine the line tension in the line and to determine an actual value based on the transmitted measurement data and at least one line-specific parameter. The calculation unit is also suitable for looking up set values ​​for the line to be straightened, typically from a table arranged in the storage unit, and for then performing a comparison between the actual value and the set value, such that the straightening unit is subsequently supplied or set according to the appropriate line tension. The calculation unit of the control device is configured to generate at least one appropriate control command from the comparison between the actual value and the set value and to transmit it to the swivel drive of the straightening unit.

[0069] In particular, the calculation unit is configured to calculate at least the line tension or to calculate an actual value based on the measurement data and at least one specific line parameter. The calculation unit typically has access to a known mathematical relationship, typically a mathematical formula stored in a storage unit. The straightening unit can thus be set particularly well, so that a particularly well straightened line can be produced.

[0070] As already mentioned above, the control device is preferably connected to a database to which at least one set value of the line tension is provided.

[0071] The straightening device preferably has a measuring device for determining the line diameter. The determined line diameter can be taken into account when generating a control command for at least one drive in the straightening device. As already mentioned above, determining the line diameter in the straightening device allows an improvement in the straightening of the line. Thus, advantageously, a straightening device having a measuring device for determining the line diameter and a tension measuring unit for determining the line tension acting on the line allows a suitable straightening for all possible line types.

[0072] In particular, the measuring device for determining the line diameter is arranged on the straightening unit, which is thus formed as described above.

[0073] As mentioned above, the straightening device or the straightening device with a measuring device for determining the line diameter preferably includes a monitoring device for monitoring the straightening of the line. It thus makes it possible to monitor the action of the straightening unit when straightening the line during the process, which allows insufficient straightening of the line to be detected at an early stage. Insufficiently straightened lines can, for example, be excluded from the treatment process at an early stage, so that subsequently only sufficiently straightened lines continue in the treatment process. The monitoring device can be used to directly monitor a predetermined space, such as a cylindrical envelope space, or to monitor a space outside the cylindrical envelope space.

[0074] In particular, the monitoring device is an optical, acoustic or airflow monitoring device, which allows the straightened line or the action of the straightening unit to be monitored without contact. For example, one or more laser curtains or camera systems or dynamic pressure nozzles can be used as monitoring devices monitoring several angular planes around a given space.

[0075] The monitoring device preferably includes at least one camera, which allows the monitoring device to be located away from the straightening device or straightening unit, so that no further components for monitoring the straightened line are arranged directly on the straightening device.

[0076] In particular, the monitoring device is supplemented with at least one camera with at least two light guides. The at least one camera records two or more image sections that can be optically combined with the two light guides. The image sections can be used to determine the action of the straightening unit or straightening device on the straightened line. If necessary, the information obtained therefrom can be used to further improve the straightening of the line on the straightening unit or straightening device.

[0077] Preferably, the monitoring device comprises at least two cameras arranged at an angle of essentially 90° to each other, such that several angle planes can be recorded by the cameras, so that a given space can subsequently be monitored, in particular formed as an essentially cylindrical envelope space.

[0078] A further aspect of the invention relates to a cable processing machine comprising a straightening device as described above with a measuring device for determining the line diameter or comprising a straightening device as described above with a tension measuring unit for determining the line tension acting on the line, in this way a cable processing machine is produced in which the line is sufficiently straightened, so that the final processing of the line in the cable processing machine can be carried out without problems and rejects can be avoided.

[0079] The cable processing machine preferably has a further straightening unit, which may be formed as described herein, which allows a further improvement in the straightening of the line, since the line to be straightened passes through the further straightening unit after one straightening unit.

[0080] The further straightening unit is preferably arranged essentially rotated by 90° with respect to the respective straightening unit. The straightening units each have a longitudinal axis that essentially corresponds to the conveying direction of the line. By "rotation" it is meant here and below that the straightening unit is rotated about its longitudinal axis. Thus, the line can be straightened in a first spatial direction by the straightening unit and further straightened in a further spatial direction by the further straightening unit.

[0081] In particular, this further straightening unit is arranged between one straightening unit and a measuring device for determining the line diameter of the straightening device or between one straightening unit and a tension measuring unit for determining the line tension acting on the line. Thus, the line can be straightened by both one straightening unit and the other straightening unit, and then the line can be determined by the respective measuring device, so that, if necessary, both one straightening unit and the further straightening unit can subsequently be set on the basis of the measurement data of the respective measuring device.

[0082] A further aspect of the invention relates to a cable processing machine comprising the above-mentioned straightening device with a measuring device for determining the line diameter and the above-mentioned straightening device with a tension measuring part for determining the line tension acting on the line. The straightening device with the measuring device for determining the line diameter and the straightening device with the tension measuring part for determining the line tension acting on the line are arranged essentially rotated by 90° relative to each other. In this way, the above-mentioned advantages for properly straightening the line in the cable processing machine can be easily realized.

[0083] The cable processing machines described herein preferably each comprise a line conveying device, so that the line is conveyed in a controlled manner through the above-mentioned straightening device, so that the straightening of the line can be performed reproducibly.

[0084] In particular, the line transport device has at least one transport drive connected to a control device of the above-mentioned straightening device, so that the transport of the line by the above-mentioned straightening device can be adapted to the arranged drive.

[0085] Another aspect of the invention relates to a method for setting a straightening unit in a straightening device for straightening a line, in particular in the above-mentioned straightening device, the method comprising the steps of providing a line to a straightening unit and a tension measuring section of the straightening device, measuring measurement data using the tension measuring section, determining an actual value for the line tension based on the measured measurement data, providing, in particular calculating, a setting value for pivoting a first roller row of the straightening unit, and pivoting the first roller row of the straightening unit relative to the second roller row of the straightening unit based on the setting value.

[0086] This can be determined for each line to be straightened using the tension measuring unit and the tension determined therein, so that the straightening device can be set for each line to be straightened, preventing excessive stretching of the line during straightening.

[0087] Preferably, the steps of measuring measurement data using a tension measuring unit, determining an actual value for the line tension based on the measured measurement data, calculating a setting value for rotating the first roller row of the straightening unit, and rotating the first roller row of the straightening unit relative to the second roller row of the straightening unit based on the setting value are repeated.

[0088] By repeating the above steps, the process steps can be continuously improved when straightening the line. In particular, the above steps are performed continuously. This allows for continuous setting.

[0089] The measurement data from the tension measuring unit is preferably transmitted to a control device of the straightening device and further processed in a calculation unit of the control device. The control device recognizes the line to be straightened, for example line-specific parameters are transmitted by a user of the control device. The calculation unit determines or calculates the actual value of the line tension from the measurement data. Furthermore, the calculation unit retrieves a set value for the line tension for the line to be straightened from a storage unit or a database.

[0090] In particular, the calculation unit of the control device is configured to carry out a comparison of the actual value of the line tension with a set value and then generate a corresponding control command for the slewing of the slewing drive, which is then transmitted to the slewing drive.

[0091] The method preferably further includes the steps of determining a line diameter using a measuring device, calculating a setting value for feeding the first roller row relative to the second roller row based on the determined line diameter, and feeding the first roller row relative to the second roller row in accordance with the setting value.

[0092] Thus, the straightening unit can be adequately supplied, so that the tension measurements carried out later can be carried out reproducibly. In particular, the aforementioned steps are carried out continuously, so that the straightening unit can be set continuously. Thus, the line diameter is continuously determined in the straightening unit, so that a constant straightening quality of the line is guaranteed.

[0093] Preferably, line-specific parameters are provided which are used to calculate the line tension, so that the settings of the straightening unit can be adapted to the respective line characteristics.

[0094] Preferably, the effect of the set straightening device on the line is checked by a monitoring device and the check data is stored in a storage unit, which transmits the check data to a control device, which processes the check data.

[0095] Preferably, after the first roller row is fed against the second roller row, the first roller row is released against the second roller row to relax the line, thus preventing permanent plastic deformation of the line portion of the line when the straightening device is in the feeding state.

[0096] Advantageously, when the conveying movement of the line through the straightening unit is interrupted, the first roller row is opened relative to the second roller row in order to relax the line. Even a short interruption of the conveying movement of the line can lead to plastic deformations of the line. These plastic deformations make further processing of the line almost impossible.

[0097] Another aspect of the invention relates to a method of setting a straightening unit in a straightening device for straightening a line, the method including the steps of providing a line to the straightening unit, feeding a first roller row against a second roller row, transporting the line through the provided straightening device, releasing the first roller row against the second roller row to relax the line in the straightening unit, and feeding a new first roller row against the second roller row.

[0098] This prevents possible plastic deformations of the clamped line when the conveying movement of the line through the straightening unit is interrupted. Even a brief interruption of the conveying movement of the line in the area of ​​the rollers of the straightening unit can lead to plastic deformations (wavyness) of the clamped line section, which makes it no longer possible to process this section further.

[0099] Another aspect of the invention relates to a computer-implemented method for automatically determining and generating data sets and / or control commands for controlling at least one straightening device, in particular a straightening device having a measuring device for determining a line diameter as described herein, and / or a straightening device having a tension measuring unit, in particular as described herein, for performing a method of straightening or setting a line, in particular a method as described herein.

[0100] Another aspect of the invention relates to a computer program product including control commands for causing an orthodontic device described herein to perform the method steps described, and a computer readable medium having a computer program stored thereon.

[0101] Further advantages, features and details of the invention will become apparent from the following description in which exemplary embodiments of the invention are described with reference to the drawings.

[0102] The list of reference symbols, as well as the technical content of the claims and drawings, are part of this disclosure. These figures are described throughout and in a comprehensive manner. The same reference symbols indicate the same components, and reference symbols with different symbols indicate functionally identical or similar components. [Brief description of the drawings]

[0103] [Figure 1] FIG. 1 shows a side view of a first embodiment of a straightening device according to the invention with an open straightening unit and a measuring device for determining the line diameter. [Diagram 2] FIG. 2 is a side view of the straightening device according to FIG. 1 with the straightening unit provided. [Diagram 3] FIG. 13 is a side view showing a further embodiment of a correction device according to the present invention having a tension measuring unit. [Figure 4] FIG. 4 is a side view showing the correction device according to FIG. [Diagram 5]FIG. 5 shows a side view of a further embodiment of the straightening device according to the invention according to FIGS. 1 and 2 with a tension measuring unit according to FIGS. 3 and 4. [Figure 6] FIG. 6 is a side view of a further embodiment of the correction device according to the invention according to FIG. 5. [Figure 7] 7 is a side view of a cable processing machine according to the invention having a straightening device according to FIG. 6; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0104] FIG. 1 shows a straightening device 15 for straightening an electrical or optical line 11, comprising a straightening unit 20, a control device 50 and a monitoring device 100. The straightening unit 20 comprises a base 22 on which a first roller train 21 with a plurality of rotatably mounted rollers 24 and a second roller train 31 with a plurality of rotatably mounted rollers 34 are arranged. In this figure and in the following figures, rollers 24 and rollers 34 representing the plurality of rollers 24 and 34 respectively have been given reference numbers. The straightening unit 20 shown is in an open state, with the line 11 passing between rollers 24 and 34 and resting on roller 34 along the line axis 12. Roller 24 is arranged offset from roller 34 along the line axis 12. The first roller train 21 is arranged on a first carrier 23 and the second roller train is arranged on a second carrier 33. The first carrier 23 has a protrusion 26 and the second carrier 33 has an at least partially interlocking recess 36. The straightening unit 20 comprises a feed drive 27 and a swivel drive 28, each of which is connected to a control device 50. The feed drive 27 comprises a pneumatically controlled drive and feeds the first roller row 21 to the second roller row 31 in such a way that the distance between the first roller row 21 and the second roller row 31 decreases until the rollers 24 of the first roller row 21 contact and hold the line 11 or until the line 11 is clamped between the rollers 24 and the rollers 34. The swivel drive 28 comprises a setting spindle 29 which swivels the first roller row 21 relative to the second roller row 31 by a settable angle, so that the line 11 to be straightened is partially clamped or held in the straightening unit 20.

[0105] The straightening device 20 includes a measuring device 40 for determining the line diameter of the line 11 arranged on the straightening unit 20. The measuring device 40 comprises a rotatably mounted measuring roller 41 movably arranged on the first carrier 23 and a measuring roller drive 42. The measuring device 40 further comprises a rotatably mounted pressure roller 43 fixedly arranged on the second carrier 33. The pressure roller 43 is arranged essentially directly opposite the measuring roller 41, and the line 11 rests on the pressure roller 43 and is held in the measuring device 40 in an open state. The measuring roller 41 is arranged at a distance A from the pressure roller 43 and is connected to the measuring roller drive 42, which feeds the measuring roller 41 to the line 11 or brings it close to the pressure roller 43. The measuring roller drive 42 is formed to remove the measuring roller 41 from the line 11 or to remove the measuring roller 41 from the pressure roller 43. The measuring device 40 and the measuring roller drive 42 are connected to a control device 50. The measuring roller drive 42 comprises a pneumatic drive, by means of which the measuring roller 41 is pressed with a contact pressure against the line 11, so that the line 11 is pressed against the pressure roller 34.

[0106] FIG. 2 shows the above-mentioned straightening device 15, in which the first roller train 21 has already been fed to the second roller train, whereby the straightening unit 20 is already in the closed state. The rollers 24 of the first roller train 21 are resting on the line 11. A distance sensor is arranged on the measuring roller drive 42, which measures the travel distance of the measuring roller 41 from the open state shown in FIG. 1 to the closed state shown here. This travel distance of the measuring roller 41 is transmitted as measurement data to the control device 50. The control device 50 has a calculation unit 52 and a storage unit 54, which are integrated in the control device 50 and connected to each other. The control device 50 is connected to a database 59. The control device 50 transmits the received measurement data to the calculation unit 52. The calculation unit 52 determines the line diameter of the line 11 or the distance A between the measuring roller 41 and the pressure roller 43, which corresponds to the line diameter of the line 11, based on the transmitted measurement data and calculates the set value for feeding the first roller train 21 to the second roller train 31 using the determined line diameter. The calculation unit 52 takes into account line-specific parameters of the line 11, which the calculation unit retrieves either from the storage unit 52 or from the database 59. The calculation unit 52 generates a control command for feeding the first roller train 21 to the second roller train 31 based on the calculated setpoints. The calculated setpoints and / or the generated control command are then stored in the storage unit 54 and / or the database 59. Alternatively, the calculation unit calls up a control command for the feed drive 27 from the storage unit 54 or the database 59, which corresponds to the calculated line diameter of the line 11. The control device 50 transmits the control command to the feed drive 27. The feed drive 27 feeds the first roller train 21 to the second roller train 31 according to the calculated setpoints. The first roller train 21 is then swiveled to the second roller train 34 by means of the swiveling drive 28, so that an angle is set between the roller axis 25 of the first roller train 21 and the roller axis 35 of the second roller train 31.In this way, the line 11 is clamped between the first and second roller trains 21 and 31, followed by straightening of the line 11 by conveying it along the line axis 12, so that a fully straightened line is produced. Due to this angle, the line 11 is degenerately straightened, i.e. it is deformed relatively strongly at first and with a reduced amplitude at the subsequent rollers. As a result, the straightened line loses its "shape memory" for further processing (not shown). A fully straightened line 11 can be recognized by the fact that, after being straightened, it can be introduced into a given space, for example a cylindrical envelope space, without leaving the boundaries of this space. It should further be noted that when the conveying movement of the line 11 by the straightening unit 20 is interrupted, the line 11 absorbs the plastic deformations it undergoes between the rollers 24 or 34 due to its shape memory. Thus, when the conveying movement of the line 11 is interrupted, the first roller row 21 is released relative to the second roller row 31, allowing the straightening unit 20 to relax, so that the line 11 does not absorb plastic deformations. As soon as the conveying movement of the line 11 starts again, the straightening unit 20 is set again to the previously determined set value. In this way, it is ensured that deformations of the line are prevented when the conveying is stopped.

[0107] The straightening device 15 comprises a monitoring device 100 for monitoring the straightening of the line 11. The monitoring device 100 comprises two cameras 101 or 102, which are connected to the control device 50 and are arranged around the straightened line 11 (see FIG. 1). The two cameras 101 or 102 are arranged at a (spatial) angle of 90° to each other. The cameras 101 or 102 create inspection data by recording a number of images. The two cameras 101 or 102 are arranged in the vicinity of the line 11, so that the angular plane of each camera captures a given space, such as a cylindrical envelope space, and within this given space, they take images of the straightened line 11 and transmit these images to the control device 50 as inspection data. The images are further processed in the control device 50 and, if necessary, are taken into account when calculating the setting values ​​for feeding the first roller train 21 to the second roller train 31.

[0108] 1 and 2 for feeding the first roller train 21 against the second roller train 31 of the straightening unit 20 are carried out successively and, if necessary, repeatedly performed several times until a sufficiently straightened line is produced. The above-mentioned measuring device 40 can be remote from the straightening unit 20 and thus can be a measuring device arranged independently in the straightening device 15 (not shown).

[0109] 3 shows a further embodiment of a straightening device 115 for straightening an electrical or optical line 11, comprising a straightening unit 120, a control device 150 and a monitoring device 100. In contrast to the previous embodiment of the straightening device, the straightening device 115 described below comprises a tension measuring unit 70 for determining the line tension acting on the line 11.

[0110] In the following description of Figures 3 and 4, reference is made to Figures 1 and 2 for like components.

[0111] The tension measuring section 70 has a roller group 74 connected to the control device 150. The roller group 74 comprises a support 75 and a pressure roller 85, the support 75 being made up of two parts, the support 75 being provided with a first support roller 80 and a second support roller 81, each of which is rotatably mounted on the support 75. The two support rollers 80 or 81 are arranged at a distance from each other. The line 11 is arranged in the roller group 74, the line 11 resting on the two support rollers 80 or 81. The pressure roller 85 is arranged on the line 11. The pressure roller 85 rests on the line 11 such that the line 11 is at least partially pressed between the first support roller 80 and the second support roller 81, so that the guided line 11 is deflected essentially into a V-shape. The pressure roller 85 is advantageously movable relative to the two support rollers 80 or 81 by means of the pressure roller drive 87, so that the line 11 is deflected by the pressure roller 85 when it passes through the roller group 74. A sensor device 90 is arranged on the pressure roller 85, which measures the radial force acting on the pressure roller 85 when it is deflected. For this purpose, a force recorder is arranged between the pressure roller 85 and the pressure roller drive 86 for measuring the radial force acting on the pressure roller 85. The force recorder has several strain gauges, the tension of which can be adjusted on the basis of a Wheatstone measuring bridge. The pressure roller 85 is arranged on a carriage and is movable along a carriage guide (not shown). The pressure roller drive 86 can be used to set the distance D between the pressure roller 85 and the support roller 80 or 81. The pressure roller 85 is rotatably mounted on the carriage. The sensor device 90 is connected to the control device 150 and transmits the radial force acting on the pressure roller 85 measured by the strain gauge and the above-mentioned distance D to the control device 150 as measurement data. The control device 150 also stores the line diameter and the distance between the support rollers 80, 81 measured as described in Figures 1 and 2. A calculation unit 152 provided in the control device 150 calculates the actual value of the line tension acting on the line 11 from the measurement data and the stored data.The calculation unit 152 is connected to the storage unit 154 and to the database 159, so that the calculation unit 152 can call up line-specific parameters of the line 11 and, if necessary, take these into account when calculating the line tension acting on the line 11. The calculation unit 152 calculates a set value of the line tension of the line 11 to be straightened or calls up a set value of the line tension of the line 11 from the storage unit 154 or the database 159. The calculation unit 152 then performs a comparison of the actual value of the line tension with the set value and generates a control command for the slewing drive 28 based on the comparison of the actual value with the set value.

[0112] If the actual value of the line tension corresponds to the set value, no change in the angle β is necessary. If the actual value of the line tension is smaller than the permissible set value, the angle β is changed by the swivel drive 28 in such a way that the line 11 is bent more strongly, which results in a larger line tension during conveying. If the actual value of the line tension is greater than the permissible set value, the angle β is correspondingly opened by the swivel drive 28, which results in a smaller line tension during conveying. Following the described correction of the angle β, a new measurement of the line tension with a subsequent comparison of the actual value with the set value is required, possibly several times. The aim is to adhere to the permissible set value as accurately as possible.

[0113] The above-mentioned control command is sent from the control device 150 to the swivel drive 28, which then swivels the first roller row 21 relative to the second roller row 31 using the setting spindle 29, so that the angle β between the roller axis 25 of the first roller row 21 and the roller axis 35 of the second roller row 31 is set from the calculation result of the control device 150. The calculated setting value of the angle β can be stored in the storage unit 154 or the database 159.

[0114] FIG. 4 shows the straightening device 115 according to FIG. 3, which has a first roller row 21 pivoted relative to the second roller row 31 in the straightening unit 20, the roller axis 25 of the first roller row 21 being pivoted by an angle β relative to the roller axis 35 of the second roller row 31. Due to this pivoting, the line 11 is partially bent in the straightening unit 20, where the roller 24 of the first roller row 21 is arranged offset from the roller 34 of the second roller row 31. This holds the line between the roller 24 and the roller 34. If the line 11 in the straightening unit 20 is tensioned, the radial force acting on the pressure roller 85 changes, which results in a change in the deflection of the pressure roller 85. Further measurement data thus measured by the sensor arrangement 90 are transmitted to the control device 150. Using the further measurement data, a new set value of the line tension acting on the line 11 is generated in the calculation unit 152 as described above, and the above steps are repeated until the pivoting of the first roller train 21 relative to the second roller train 31 is optimized step by step so that the tension corresponds to a value acceptable for the line in correlation with a sufficiently straightened line 11, i.e. a value at which the line is not overstretched or broken. The above steps are carried out iteratively and continuously. If necessary, a new set value is assigned to the line or to the line tension of the line 11 and stored in a table in the storage unit 154 or in the database 159.

[0115] The straightening device 115 mentioned above comprises a monitoring device 100 for monitoring the straightening of the line 11 as already explained in FIG. 1 and in FIG.

[0116] Fig. 5 shows the straightening device 215 according to Fig. 1 and Fig. 2. Furthermore, this straightening device 215 comprises a tension measuring unit 70 as described with reference to Figs. 3 and 4.

[0117] In the following description, reference will be made to FIGS. 1 to 4 for the same components.

[0118] The straightening device has a straightening unit 20, on which the measuring device 40 is arranged (see also Fig. 1 and Fig. 2). The tension measuring part 70 is arranged downstream in the conveying direction of the line 11, as explained for the straightening device 115 according to Fig. 3 and Fig. 4. In this straightening device 215, the straightening of the line 11 takes place, as already explained in detail in Fig. 1 and Fig. 2 and Fig. 3 and Fig. 4. The straightening device 215 has a control device 250, which is formed to generate the control commands of the control device 50 according to Fig. 1 and Fig. 2 and the control commands of the control device 250 according to Fig. 3 and Fig. 4 and to transmit them to the drive as described above. For this purpose, the control device 250 has a calculation unit 252, which is suitable for carrying out and, if necessary, combining the calculations of the calculation unit according to Fig. 1 and Fig. 2 and the calculations of the calculation unit according to Fig. 3 and Fig. 4. After the line 11 has been provided to the straightening unit 20, the line diameter of the line 11 is determined by means of the measuring roller 41 and the pressure roller 43 of the measuring device 40. The measurement data measured by the measuring device 40 are then transmitted to the calculation unit 252, which calculates the set value for feeding the first roller train 21 to the second roller train 31 based on the determined line diameter. A control command generated based on the set value is transmitted to the feed drive 27, which feeds the first roller train as described above. The line 11 is then provided to the tension measuring unit 70 by guiding the line 11 through the roller group 74. The radial force acting on the pressure roller 85 is then measured by the sensor device 90, and the measurement data are transmitted to the control device 250, which calculates the actual value in the calculation unit 252 and / or performs a comparison of the actual value with the set value. The calculation unit 252 then determines the line tension on the line 11, as already explained in Fig. 3 and Fig. 4. The first roller train 21 of the straightening unit 20 is then pivoted relative to the second roller train 31 of the straightening unit 20 based on the calculated actual value or on the comparison of the actual value with the set value. The above steps are repeated and performed continuously. The control device 250 includes a storage unit 254 and a database 259 .The described straightening device 215 includes a monitoring device 100 for monitoring the straightening of the line 11, as already described in FIGS.

[0119] FIG. 6 shows a further embodiment of the straightening device 315 according to the invention with a straightening device according to FIG. 5 and a further straightening unit 60. In the following description, reference is made to FIGS. 1 to 5 for the same components. The further straightening unit 60 is arranged rotated by 90° with respect to the one straightening unit 20 about its longitudinal axis and is arranged between the one straightening unit 20 and the roller group 74. The further straightening unit 60 has essentially the same components as the straightening unit 20. The line 11 is provided between the first roller row 62 and the second roller row 63 of the further straightening unit 60 and is held by said rollers. The measuring roller drive 65 of the measuring device 66 for determining the line diameter of the line 11 is connected to the control device 350 for exchanging measurement data. The feed drive 67 and the swivel drive 68 of the further straightening unit 60 are connected to the control device 250 for receiving control commands. The described straightening device 315 according to FIG. 6 includes a monitoring device 100 for monitoring the straightening of the line 11, as already described in FIGS. 1 and 2.

[0120] FIG. 7 shows in a side view a cable processing machine 400 according to the invention with a straightening device 315 according to FIG. 6. In the following description, reference is made to FIGS. 1 to 6 for the same components. The cable processing machine 400 comprises a line feed device 402 and a line conveying device 405, which conveys the line 11 to be straightened via one straightening unit 20, a further straightening unit 60 and a tension measuring unit 70. The line conveying device 405 comprises a guide tube 406 for guiding the line 11 and a conveying drive 407 for conveying the line 11 through the cable processing machine 400. The conveying drive 207 is connected to a control device 450. As mentioned above, the control device 450 generates control commands based on the measurement data of the measuring device 40 for determining the line diameter and / or based on the measurement data of the tension measuring unit 70 for determining the line tension. By means of these control commands the conveying speed of the line 11 is controlled by the straightening device 315, so that a well-straightened line is formed.

[0121] 1-7 are computer-implemented methods for automatically determining and generating data records and / or control commands for controlling a straightening device described herein and / or a cable processing machine described herein, if necessary, for use in the methods described herein for straightening or setting a line 11. The data records and / or control commands are stored in a computer program product and recorded on a computer readable medium. [Explanation of symbols]

[0122] 11 Line 12 Line axis 15 Orthodontic device 20 Correctional Unit 21 First Roller Train 22 Base 23 First Career 24 21 Lola 25 21 roller shaft 26 Protrusion 27 Supply drive unit 28 Swivel drive unit 29 Setting spindle 31 Second Roller Train 33 Second Career 34 31 Laura 35 31 roller shaft 36 Recess 40 Measuring Equipment 41 Measuring roller 42 Measuring roller drive unit 43 Pressure roller 50 Control device 52 Computing Units 54 Storage Unit 59 Database 60 Further Correctional Units 62 60 first roller train 63 60 second roller train 65 Measuring roller drive unit 66 Measuring Equipment 67 Supply drive unit 68 Swivel drive unit 70 Tension measurement section 74 Roller Group 75 Support 80 First support roller 81 Second support roller 85 Pressure roller 87 Pressure roller drive unit 90 Sensor device 100 Monitoring equipment 101 Camera 102 Second Camera 115 Orthodontic device 150 Control device 152 computational units 154 Storage Unit 159 Database 215 Orthodontic device 250 Control device 252 computational units 254 Storage Unit 259 Database 315 Orthodontic device 350 Control device 400 Cable Processing Machine 402 Line Feeder 405 Line conveyor 406 Guide Tube 407 Transport drive unit 450 Control Device Distance between A 41 and 43 D Distance between 80 or 81 and 85 β Angle between 25 and 35

Claims

1. A straightening device (15; 115; 215; 315) for straightening a line (11), comprising: A straightening unit (20) having a first roller row (21) and a second roller row (31) movable relative to each other; a measuring device (40) for measuring the diameter of said line (11); A tension measuring device (70) for measuring a line tension acting on the line (11); a supply drive unit (27) that supplies the first roller row (21) to the second roller row (31) so that the distance between the first roller row (21) and the second roller row (31) becomes a set value calculated based on the measured diameter; a rotation drive unit (28) that rotates the first roller row (21) relative to the second roller row (31) based on a comparison between the measured line tension and a predetermined set value of the line tension; An orthodontic device comprising:

2. 2. The straightening device (15; 115; 215; 315) according to claim 1, characterized in that the measuring device (40) is designed as an ultrasonic sensor or a laser sensor or a laser curtain.

3. The measuring device (40) At least one measuring roller (41), and a pressure roller (43) arranged opposite the measuring roller (41); at least one sensor from the group of a displacement sensor, a position sensor, a distance sensor, and a goniometer; having The measuring roller (41) and the pressure roller (43) are arranged so that a line can pass between them, The distance (A) between the measuring roller (41) and the pressure roller (43) is adjustable by a measuring roller drive unit (42) for moving the measuring roller (41).

2. The orthodontic device (15; 115; 215; 315) according to claim 1, characterized in that

4. 4. The straightening device (15; 115; 215; 315) according to claim 3, characterized in that the second roller train (31) has a plurality of rollers (34) and the pressure roller (43) is formed as one of the plurality of rollers (34).

5. The straightening device (15; 115; 215; 315) according to any one of claims 1 to 4, characterized in that the tension measuring section (70) has a roller group (74) having a support (75) and a pressure roller (85), and the support (75) has two support rollers (80, 81).

6. 6. The straightening device (15; 115; 215; 315) according to claim 5, characterized in that the support (75) is arranged such that a line guided between the support (75) and the pressure roller (85) is deflected by the pressure roller (85).

7. The pressure roller (85) is connected to a sensor device (90) for measuring the force acting on the pressure roller (85); The orthotic device (15; 115; 215; 315) according to claim 5 or 6, characterized in that the sensor device (90) comprises a force recorder.

8. The pressure roller (85) is connected to a sensor device (90) for measuring the force acting on the pressure roller (85); At least the pressure roller (85) is movable relative to the support (75); said sensor device (90) being a displacement sensor system configured to determine the distance (D) from the support relative to the pressure roller (85); 7. Correction device (15; 115; 215; 315) according to claim 5 or 6.

9. 9. Straightening device (15; 115; 215; 315) according to claim 8, characterized in that the displacement sensor system is further configured to determine a deflection of the pressure roller relative to the support (75).

10. The straightening device (15; 115; 215; 315) has a control device (50; 150; 250; 350; 450), said control device (50; 150; 250; 350; 450) having a calculation unit (52; 152; 252) and a storage unit (54; 154; 254); A straightening device (15; 115; 215; 315) according to any one of claims 1 to 9, characterized in that

11. The measuring device (40) and the tension measuring unit (70) are connected to the control device (50; 150; 250; 350; 450) for transmitting measurement data; the control device (50; 150; 250; 350; 450) is connected to the measuring roller drive (42) and to the pivot drive (28); A straightening device (15; 115; 215; 315) according to claim 10, characterized in that

12. Straightening device (15; 115; 215; 315) according to any one of the preceding claims, characterized in that it comprises a monitoring device (100) for monitoring the straightening of the line (11).

13. 13. The orthodontic device (15; 115; 215; 315) of claim 12, wherein the monitoring device (100) is an optical, acoustic, or airflow monitoring device (100).

14. Corrective device (15; 115; 215; 315) according to claim 12 or 13, characterized in that the monitoring device (100) comprises at least one camera (101).

15. A method for operating a straightening unit (20) in a straightening device (15; 115; 215; 315) according to any one of claims 1 to 14, comprising the steps of: Providing a line (11) between a first roller row (21) and a second roller row (31) in the straightening unit (20); measuring the diameter of said line (11) using a measuring device (40); calculating a set value based on the measured diameter; supplying the first roller row (21) to the second roller row (31) so that the distance between the first roller row (21) and the second roller row (31) becomes the set value; A method comprising:

16. measuring the diameter; calculating the set value; feeding the first roller row (21) to the second roller row (31); The method according to claim 15, characterized in that:

17. 17. A method according to claim 15 or 16, characterized in that for calculating the setpoints line-specific parameters are taken into account.

18. The method according to any one of claims 15 to 17, characterized in that after the first roller row (21) has been fed against the second roller row (31), the first roller row (21) is released against the second roller row (31) in order to relax the line (11).

19. A cable processing machine (400), comprising: A first straightening device (15; 115; 215; 315) which is a straightening device according to any one of claims 1 to 14, A second straightening device (15; 115; 215; 315) which is a straightening device according to any one of claims 1 to 14, Including, 1. A cable processing machine (400), characterized in that the first straightening device (15; 115; 215; 315) and the second straightening device (15; 115; 215; 315) are arranged rotated essentially by 90° relative to each other.

Images