Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
  • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
  • B65H67/044—Continuous winding apparatus for winding on two or more winding heads in succession
  • B65H67/048—Continuous winding apparatus for winding on two or more winding heads in succession having winding heads arranged on rotary capstan head
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H51/00—Forwarding filamentary material
  • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
  • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
  • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
  • B65H59/385—Regulating winding speed
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2701/00—Handled material; Storage means
  • B65H2701/30—Handled filamentary material
  • B65H2701/31—Textiles threads or artificial strands of filaments
  • B65H2701/313—Synthetic polymer threads
  • B65H2701/3132—Synthetic polymer threads extruded from spinnerets

Definitions

• the invention relates to a method for the continuous winding of a strand-like winding material into coils according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 8.
• a generic method and a generic Vorrich- device are known from WO 2003/033386 AI.
• a strand-shaped winding material for example, from a manufacturing process of a thread, wound continuously without interruption to form coils.
• the coils are alternately wound on two winding spindles projecting on a spool turret.
• the winding spindles are guided by the winding turret alternately in an operating position for winding the Spulgutes and in a change position for removing the full bobbins.
• the winding spindles in the operating position is assigned a dancer arm device which forms a loop of the material to be spooled with a slack by means of a dancer arm.
• the dancer arm is designed to be movable, so that the size of the slack of the loop directly determines the position of the dancer arm.
• the dancer arm interacts with a speed control unit in order to control the speed of the winding spindles during winding of the take-up material in such a way that a constant take-up speed is independent of the increase in the throughput of the bobbin. prevails.
• the size of the slack of the thread loop is used to achieve a uniform absorption of the winding material during winding.
• the Tänzerarm noisy is coupled in each case with the guided in the operating position winding spindle and the spindle drive.
• the problem arises that the slack of the loop of the material to be spooled on the dancer arm in addition to the respective spindle speed and bobbin diameter is additionally influenced by an evasive movement of the winding spindle.
• the wound during the movement of the winding spindle layers of Spulgutes be wound with too low winding speed, resulting in undesirable loose layers of Spulgutes the circumference of the coils.
• Another object of the invention is to be able to record the winding material during the change phase with the fastest possible uniform speed from the upstream process.
• the invention is characterized in that in addition to the spindle drive and the turret drive is included in the speed control of Tänzerarm listening.
• a rotational movement and / or a rotational speed of the winding turret can be controlled as a function of the slack of the loop of the material to be winder.
• a change in the sag resulting from the rotational movement and / or the rotational speed of the winding turret can be effectively compensated for without having to set too high or too low a spindle speed.
• the device according to the invention therefore provides that the turret drive for controlling the rotational movement and / or a rotational speed of the winding turret is connected to the speed control unit of the dancer arm device.
• Another advantage of the invention lies in the fact that advantageously also the deflection movement required during the formation of a coil can advantageously be carried out by the winding turret due to the increase in the coil.
• the invention is thus not limited only to the fact that the connection between the turret drive and the speed control unit of the dancer arm device acts during a spindle change.
• the method variant is preferably used in which the spindle speed of the winding winding spindle is set to a fixed alternating speed, which is below a set at termination control speed of the winding spindle.
• the alternating rotational speed is preferably set such that in addition to the continuous winding of the material to be spooled a sufficient excess of material supply of the Spulgutes is given to allow the evasive movement of the winding spindle by the rotation of the winding turret.
• the alternating speed of the winding spindle is preferably set in relation to the control speed to a value in the range of 50% to 95% of the control speed.
• the control of the spindle speed of the winding spindle winding the winding spindle is limited to a partial value of the slack of the loop and that a second part of the slack of the loop to control the rotational movement and / or the rotational speed of the Spulrevolvers is used.
• the change in the slack of the loop on the dancer arm can be compensated both by the spindle speed and by the rotational movement and / or the rotational speed of the winding turret.
• the partial values of the slack of the loop which can be used to control the spindle speed or to control the rotation of the winding turret, can be of the same size or not of equal size. For example, 50% of the compensation of the sag due to a spindle speed change and 50% of the compensation due to a change in the rotational speed of the spool turret could occur in the case of a determined sag change. be equalized.
• This variant of the method is also particularly suitable for carrying out the required evasive movement, for example, during the winding of the bobbin due to the increase in the bobbin by a rotary movement of the bobbin revolver. It could be done in the movement phase of the winding turret advantageous speed control to partial values of sag.
• the process variant for the changeover phase is particularly preferably carried out, in which the rotational speed of the winding turret is controlled in the range of 160 ° to 200 ° during a continuous rotational movement of the winding turret. This makes it possible to carry out a continuous movement sequence with essentially unchanged dancer arming during the changeover phase. The absorption of the winding material from the upstream process remains essentially unchanged.
• the device according to the invention is advantageously developed such that the speed control unit of the dancer arm device is connected to a machine control, by which all winding operations for winding the bobbins and changing operations for changing the winding spindle can be controlled , This allows the different in the operating position and when changing different speed controls of the spindle drives and the re volver to drives s change quickly and adapted to the respective operating condition.
• the speed control unit preferably has a microprocessor through which a plurality of stored control programs can be selectively executed. So for example, by one of the control programs, the setting of the alternating speed of the winding spindle can be determined, which determines the winding of the winding material in the change phase.
• a control program could be deposited, in which rather the partial values of the slack of the loop for controlling the spindle drive and for controlling the turret drive are stored.
• the development of the invention is preferably carried out in which the dancer arm and the winding turret are held with the winding spindles on a frame wall, wherein between the Dancer and the Spulrevolver a traversing device and a pressure roller are held on the frame wall.
• the method according to the invention is also suitable for devices in which a plurality of coils are wound simultaneously on the winding spindles.
• the device according to the invention can preferably be carried out in such a way that the dancer arm has a plurality of dancer arm rollers which are respectively held between two deflection points and which are each assigned to one of a plurality of winding stations on the winding spindles.
• a dancer arm can be used to form a slack in each winding unit. Non-uniformities between the individual winding units are compensated by a superimposed control of the spindle speed and / or the rotational movement of the winding turret.
• Fig. 1 shows schematically a front view of an embodiment of the device according to the invention for carrying out the method according to the invention
• FIG. 2 is a schematic plan view of the embodiment of FIG. 1
• Fig. 3 shows schematically a front view of the embodiment of FIG. 1 at a spindle change
• FIG. 1 to 3 an embodiment of the device according to the invention for continuously winding a Spulgutes to a coil is shown in several views.
• Fig. 1 and Fig. 3 illustrate the embodiment in a front view in different operating situations and Fig. 2 in a plan view. Unless an explicit reference is made to one of the figures, the following description applies to all figures.
• the embodiment of the device for continuous winding according to the invention has a winding turret 2, which is rotatably mounted in a frame wall 1 and is rotatable counterclockwise via a turret drive 21.
• the turret drive 21 is assigned a turret control unit 29, by means of which the turret drive 21 can be controlled to execute a rotational movement of the turret 2.
• the winding turret 2 carries two rotatably mounted winding spindles 3.1 and 3.2, which are held projecting, each with a free end.
• the winding spindles 3.1 and 3.2 are held on the Spulrevolver 2 offset by 180 ° to each other.
• Each of the winding spindles 3.1 and 3.2 is coupled to a spindle drive 19.1 and 19.2, which are each controllable via a spindle control unit 20.1 and 20.2.
• the spindle control units 20.1 and 20.2 and the turret control unit 29 are connected to a central machine control unit 31 and can be controlled individually or separately depending on the respective operating state.
• the drives 19.1, 19.2 and 21 as well as the control devices 20.1, 20.2 and 29 are arranged on a rear side of the frame wall 1.
• the winding spindles 3.1 and 3.2 protrude projectingly on the winding turret 2 and each have on the circumference a winding tube 5.1 and 5.2, on the circumference of which a spool 6 can be wound.
• Each of the winding spindles 3.1 and 3.2 has a catching device 4.1 and 4.2, which are arranged laterally next to the winding sleeves 5.1 and 5.2 at the circumference of the winding spindles 3.1 and 3.2 in the region of the bearing end of the winding spindles 3.1 and 3.2, as shown in FIG.
• the catching devices 4.1 and 4.2 on the winding spindles 3.1 and 3.2 are of identical construction, so that only the catching device 4.2 of the winding spindle 3.2 is described at this point.
• the fishing device 4.2 has a plurality of catch hooks designed as catching elements 33, which are distributed uniformly on the circumference of the winding spindle 3.2.
• the fishing hook 33 is associated with a catch groove 32 on the circumference of the winding spindle, which has a width which is greater than the catch hooks 33 projecting into the catch groove 32.
• each winding spindle 3.1 and 3.2 are each assigned a separating device 7.1 and 7.2, a guide rod 23.1 and 23.2 and a support rod 22.1 and 22.2.
• the separating devices 7.1 and 7.2, the guide rods 23.1 and 23.2 and the support rods 22.1 and 22.2 are arranged distributed between the winding spindles 3.1 and 3.2 and firmly connected to the winding turret 2.
• the separating devices 7.1 and 7.2 are held by a respective support 28.1 and 28.2 in a catching plane, which is clamped by the catching devices 4.1 and 4.2.
• the separators 7.1 and 7.2 are identically constructed and each have a movable locking means 26 and cooperating with the locking means 26 knife 27.
• the support rods 22.1 and 22.2 and the guide rods 23.1 and 23.2 are different lengths projecting on the Spulrevolver 2 arranged.
• the longer support bar 22.1 and 22.2 protrude with a free end over a coil center of the winding tubes 5.1 and 5.2, which is determined essentially by half the length of the winding tubes 5.1 and 5.2.
• the holding bars 22.1 and 22.2 each have a yarn guide 24.1 and 24.2, which serves to position a sliding on the support rod 22.1 or 22.2 Spulgutes.
• the shorter guide rods 23.1 and 23.2 protrude with their free end into the winding area of the winding tube 5.1 and 5.2 and cover the capturing devices 4.1 and 4.2.
• a traversing device 8 is cut out laterally next to the winding turret 2. kept low on the frame wall.
• the traversing device 8 has a traversing yarn guide 9, which by means of a traversing s drive 18 parallel to the winding spindles 3.1 and 2.2 is reciprocable.
• the traversing yarn guide 9 can be positioned by means of belts, threaded shafts or by splines through the drive.
• To guide the traversing yarn guide 9 of the traversing drive 18 is coupled to a traction control unit 30 which is connected to the machine control unit 31. In this case, the traversing yarn guide 9 can be guided back and forth for winding a material to be taken up within the winding area.
• the traversing yarn guide 9 can also be positioned outside a traversing stroke range for positioning the material to be winder during a changeover phase of the winding spindle.
• the traverse stroke, in which the traversing yarn guide 9 is guided back and forth to wind up the winding material, is preferably somewhat smaller than the width of the winding tubes 5.1 and 5.2 on the circumference of the winding spindles 3.1 and 3.2.
• the traversing device 8 is followed by a rotatably mounted pressure roller 10, which rests on the circumference of the coil 6 formed on the winding tube 5.
• the pressure roller 10 is held by a fork-shaped rocker 11, which is pivotally mounted on a cantilevered pivot axis 12.
• the rocker 11 is associated with a distance sensor 25 which detects a deflection movement of the pressure roller 10 during the winding of a coil.
• the evasive movement of the pressure roller 10 is used in order to be able to carry out further indexing of the reel turret for winding a reel in a substantially unchanged position of the pressure roller 10.
• the distance sensor 25 is connected to the machine control device 31 for this purpose.
• a pivotable dancer arm 14 has.
• the dancer arm 14 is L-shaped and has a dancer arm roller 15 at a free end of a leg.
• the dancer arm roller 15 is held in a plane between two deflection rollers 16. 1 and 16. 2, which guide a running load 34.
• the pulleys 16.1 and 16.2 are held by a plurality of rods 37 on the frame wall 1.
• a slack 35 of the Spulgutes between the deflection points is generated by the dancer arm 14 held on the dancer arm 15 between the guide rollers 16.1 and 16.2.
• the free end of the dancer arm 14 acts with a force of gravity on the sag 35 of the Spulgutes 34, so that a change in the sag 35 is directly due to an increase or decrease of a take-up tension.
• the dancer arm 14 is rotatably mounted with the second leg and connected to a rotary encoder 36.
• the rotary encoder 36 detects the respective position of the dancer arm 14 or the dancer arm roller 15 on the front side of the frame wall 1.
• the dancer arm 14 or the rotary encoder 36 is coupled to a speed control unit 17 of the dancer arm 14, so that depending on the position of the dancer arm 14 directly control signals can be generated to correct the sag 35.
• the speed control unit 17 is coupled to the engine controller 31. Alternatively, however, it is also possible to connect the speed control unit 17 directly to the spindle control units 20.1 and 20.2 and the revolver control unit 29.
• the apparatus according to the invention for continuous winding shown in FIGS. 1 and 2 is thus suitable for continuously winding a band-shaped winding material with a substantially uniform winding tension. Because with increasing diameter the wound coil 6 to maintain a constant peripheral speed, the rotational speed of the winding spindle 3.1 or 3.2 is controlled in response to the sag 35 formed by the dancer 14 of the Spulgutes 34. At a constant spindle speed and increasing coil diameter of the wound coil 6, an excessive winding speed occurs, which leads to a reduction in the sag 35 and thus to a change in the position of the dancer arm 14.
• the change in the slack 35 of the Spulgutes 34 is detected directly by the change in position of the dancer arm 14 and converted in the speed control unit 17 to a control signal which is fed directly to the spindle control unit 20.1 or the machine control device 31 to obtain a correction of the spindle speed by the spindle drive 19.1 ,
• the transfer of the winding material 34 between the winding spindles 3.1 and 3.2 is performed by the rotational movement of the winding turret 2.
• the incoming Spulgut 34 is added in addition to the winding on the spool 6 in addition by the change in position of the winding spindle 3.1, so that at constant feed speed of the Spulgutes a change in the sag 35 on dancer arm 14 occurs.
• the device according to the invention can in principle be operated with two different process variants.
• the spindle speed of the winding winding spindle is set to a fixed alternating speed before initiating a spindle change.
• the alternating speed of the winding winding spindle is set lower in relation to a control speed by the dancer arm device.
• the alternating speed of the winding spindle is preferably set to a value in the range of 50% to 95% of the control speed set.
• the dancer arm device is coupled to the turret control device in order to control the rotational movement of the winding turret or the rotational speed of the winding turret when changing the winding spindles such that the dancer arm has a uniform slack in the winding material is present.
• the winding spindle 3.1 is driven by the spindle drive 19.1 with a predetermined by the spindle control unit 20.1 alternating speed to initiate a Spulcics after finished wound coil 6.
• the turret drive 21 is activated by the turret control unit 29 in order to guide the winding spindle 3.1 into the change region and the winding spindle 3.2 into the operating region.
• the speed control unit 17 of the Tänzerarm dressed 13 is coupled to the turret control unit 29.
• the coupling can be done indirectly via the machine control 31 or directly via a signal line.
• control programs required for changing the spindle may be assigned directly to a microprocessor of the speed control unit 17 or, alternatively, to the machine control device 31.
• the control programs may include a plurality of control algorithms to establish the relationships between the speed control unit 17 and the winders of the winding spindle and the revolver, depending on the operating operation and depending on the process variant.
• the speed control unit 17 remains connected to the revolver control device 29 during the rotational movement of the winding turret 2.
• the rotational movement which, for example, can also be carried out continuously or discontinuously as a function of the slack 35 on the dancer arm 14, can be controlled.
• the rotational speed of the winding turret 2 can advantageously be adjusted such that the sag 35 on the dancer arm 14 is kept within a permissible tolerance range.
• FIGS. 1 and 3 Another alternative to the execution of the spindle change in the embodiment shown in FIGS. 1 and 3 can be carried out by the method variant in which the speed control unit 17 is coupled during the spindle change with the spindle control unit 20.1 of the spindle drive 19.1 and the turret control unit 29 of the turret drive 21.
• a partial value of the slack 35 of the loop 35 is used to control the spindle speed of the winding material winding spindle 3.1 and a second part of the slack of the thread loop used to control the rotational movement and / or the rotational speed of the winding turret 2.
• the division of the partial values of the slack of the loop are preferably in the range of 50% to 95%, so that the control of the rotational movement or the rotational speed of the winding turret 2 with a proportion of 5% to 50 of the slack of the loop on dancer arm 14 controllable is.
• the remaining portion of the change in the sag of the loop which is at 50% - 95%, is used to control the spindle speed of the winding spindle winding the winding spindle.
• This method variant in which the Tänzerarm Hughes 13 is used both for controlling the spindle speed of the winding spindle 3.1 and for controlling the rotational movement of the winding turret 2, could also be used advantageously during the winding of a coil 6.
• the deflection movement between the pressure roller 10 and the winding spindle 3.1 or 3.2 required by the rotational movement of the winding turret 2 takes place when the coil is growing.
• the winding spindle 3.1 changed by a rotational movement of the winding turret 2 continuously or discontinuously in its operating position.
• the slack 35 of the loop on the dancer arm 14 is split into partial values in this phase, so that one of the partial values for regulating the winding spindle speed and the other partial value for controlling the rotary movement of the winding turret 2 can be used.
• the transfer of the Spulgutes takes place automatically when changing the spindle.
• the revolver drive 21 is activated via the machine control device 20 in order to guide the winding spindle with a full bobbin to a change position and to guide the winding spindle with an empty bobbin tube into a catching position.
• the situation of the spindle change is shown in Fig. 3, wherein the winding spindle 3.1 is performed with a full bobbin 6 in the change position and the winding spindle 3.2 with an empty winding tube 5.2 in the fishing position.
• the guide rods 22.2 and 23.2 and the separator 7.2 are guided in the course of the winding material 34.
• the traversing yarn guide 9 is positioned laterally next to the winding area outside a traversing stroke in order to initiate the transfer of the material to be wound 34.
• the Spulgut 34 is still wound up by the coil 6 by means of the winding winding spindle 3.1.
• the yarn guide prevents 24.2 on the guide rod 22.2 that the Spulgut 9 does not fall off the circumference of the coil 6 in the positioning of the traversing yarn guide.
• the dancer arm device 14 can be used to control the rotational movement and / or the rotational speed of the winding turret 2 during the changeover phase.
• the embodiment of the device according to the invention shown in Fig. 1 to 3 shows at the winding spindles 3.1 and 3.2 only one winding unit. In principle, however, it is also possible to wind several spools at the winding spindles 3.1 and 3.2 at the same time. Thus, for example, to those shown in Fig. 2 On dishwasher on the winding spindles 3.1 and 3.2 two bobbin tubes are kept parallel to each other, where two coils are wound simultaneously. In order to control the spindle speed, two dancer roller rollers arranged in parallel would be arranged on the dancer arm 14, which are arranged upstream of the winding units and guide the respective dough pieces in the winding station.
• the dancer arm rollers of the dancer arm are guided analogously to the spool according to the illustration in FIG. 1, in each case between two deflection points.
• both winding units can be controlled by a common dancer arm and a speed control unit in their Spulspindelitchiere.

Landscapes

• Replacement Of Web Rolls (AREA)
• Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
• Tension Adjustment In Filamentary Materials (AREA)
• Winding Filamentary Materials (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

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ID=46970313

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• 2011
  • 2011-10-14 DE DE201110116156 patent/DE102011116156A1/de not_active Withdrawn
• 2012
  • 2012-10-04 CN CN201280050295.2A patent/CN103874644B/zh not_active Expired - Fee Related
  • 2012-10-04 IN IN3521CHN2014 patent/IN2014CN03521A/en unknown
  • 2012-10-04 EP EP12768832.3A patent/EP2766289B1/de not_active Not-in-force
  • 2012-10-04 WO PCT/EP2012/069650 patent/WO2013053634A1/de active Application Filing
  • 2012-10-04 JP JP2014535011A patent/JP6143758B2/ja not_active Expired - Fee Related

Patent Citations (3)

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