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
  • B65H54/00—Winding, coiling, or depositing filamentary material
  • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
  • B65H54/40—Arrangements for rotating packages
  • B65H54/52—Drive contact pressure control, e.g. pressing arrangements
• • 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
  • B65H2701/00—Handled material; Storage means
  • B65H2701/30—Handled filamentary material
  • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

• the invention relates to a method for winding several threads into bobbins according to the preamble of claim 1 and an apparatus for carrying out the method according to the preamble of claim 12.
• the threads are wound into bobbins simultaneously on two winding spindles arranged next to one another.
• the winding spindles are each driven by a spindle drive.
• Each of the winding spindles is assigned a pressure roller, which is held in a radially movable manner relative to the winding spindle via a rocker arm.
• the pressure rollers rest on the circumference of the bobbins.
• both the pressure roller and the bobbin spindle can be changed in their position.
• the movable pressure rollers can also be moved radially to the winding spindles by means of a slide.
• the object is achieved according to the invention by a method with the features according to claim 1 and by a device with the features according to claim 12.
• the invention is characterized in that the same geometric assignments between the winding spindles and the pressure rollers are given in each winding station.
• a contact force to be applied by the pressure rollers for the winding of the bobbins on both winding spindles can be adjusted with simple means.
• the contact force advantageously results from a weight load and / or a weight relief from the rigidly connected pressure rollers.
• the pressure rollers are connected to one another by a holder which is movably held on a machine frame and which interacts with a controllable force transmitter for weight loading and / or for weight relief.
• each of the coils wound on the two winding spindles has an identical coil diameter.
• a different coil increase and thus different coil diameters are advantageously avoided.
• the even build-up of the bobbins on both bobbin spindles can be further improved by keeping the center distances between the bobbin spindles and the assigned pressure rollers the same during winding.
• the preferred method variant according to claim 3 also allows manufacturing tolerances on the device to be compensated for. For example, due to manufacturing tolerances, the position of the winding spindles within the device could show minor deviations relative to the pressure rollers. Thus, especially at the start of a winding process, there would be no uniform contact between the pressure rollers and the associated winding spindles. In order to bridge such manufacturing tolerances, a high contact force is initially set between the winding spindles and the pressure rollers in this process variant. The contact force is dimensioned in such a way that, due to the elasticity of the long projecting winding spindles, both pressure rollers come into contact with the assigned winding spindles.
• the pressure rollers or the winding spindles preferably have a parallel elasticity, so that signs of deflection are excluded. After the threads have been wound onto the winding tubes of the winding spindles, the contact force is changed to the lower contact force.
• the device according to the invention has, as a force transmitter, at least one relief cylinder unit which is connected to a control device.
• the support of the pressure rollers at the start of the winding process can thus be reduced accordingly, so that a high proportion of the total weight is required to exert the contact force.
• the pressure rollers preferably have feeders which take over the contact with the winding spindles when the threads are caught and wound. Only after a base layer has been wound do the pressure rollers come into contact with the Do the washing up. Until then, the contact force is preferably switched over to the contact force.
• the thrust rings of the two pressure rollers are preferably of the same size, so that each of the coils has a uniform base layer.
• thrust rings of the two pressure rollers it is also possible to design the thrust rings of the two pressure rollers differently in the outer diameter in order, for example, to be able to compensate for larger differences in position tolerance. It is also possible to attach the thrust rings directly to the circumference of the winding spindles instead of the pressure rollers.
• Switching the contact force to the contact force can thus advantageously also be generated by simply changing the weight relief.
• the contact force acting between the pressure rollers and the bobbins is kept essentially constant.
• the power profile can also contain a so-called wobble to dampen vibrations on the winding spindles.
• the winding spindles are driven and controlled synchronously according to an advantageous development of the invention.
• the spindle drives are preferably formed by two electric motors and a control device, the control device being connected to the control device.
• the development of the invention is preferably used in which the pressure rollers are mechanically or electrically coupled to one another in such a way that both pressure rollers rotate at the same speed.
• the pressure rollers are connected to one another by a gear mechanism.
• the gear means could be mechanical or electrical in order to achieve the speed adjustment of the two pressure rollers.
• the pressure rollers can also be driven in opposite directions by a third-party drive, which favors spool change processes in particular.
• the external drive of the pressure rollers is preferably suitable for establishing certain load relationships between the driven coils and the pressure rollers.
• the external drive of the pressure rollers can be designed in such a way that a demanding component or a braking component always act on the circumference of the coils.
• the thread tension of the spooled threads can advantageously be influenced, since defined slip phenomena between the pressure rollers and the bobbins can be set.
• the evasive movements can be carried out in a simple manner in such a way that the pressure rollers and the holder are guided together by a slide in a slide guide during winding. This enables the same settings to be made in the system forces in the two winding units during the evasive movement.
• the winding spindles can preferably be guided synchronously by two movable spindle carriers.
• Spindle carriers of this type which can be formed, for example, by winding turrets, can also be used to produce the required contact between the pressure rollers and the winding spindles at the start of winding.
• a movable spindle carrier in the form of a bobbin turret also has the advantage that a second bobbin spindle can be held in each bobbin in order to be able to alternately guide the two bobbin spindles into a bobbin area and a changing area.
• FIG. 1 and 2 schematically show a front view of an exemplary embodiment of the device according to the invention for carrying out the method according to the invention; in different operating situations;
• Fig. 3 schematically shows a side view of the embodiment of Fig. 1;
• 4 schematically shows a drive concept of the exemplary embodiment from FIG. 1 and
• FIG. 5 schematically shows another drive concept of the exemplary embodiment from FIG. 1 1 to 3 show an exemplary embodiment of the device according to the invention for carrying out the method according to the invention.
• Fig. 1 and Fig. 2 shows a front view in different operating situations and Fig. 3 a ⁇ side view of the embodiment.
• the exemplary embodiment of the device according to the invention has two winding units 29.1 and 29.2 which are formed side by side in a machine frame 12.
• the winding units 29.1 and 29.2 are mirror images of a central plane of symmetry.
• the right winding unit 29..1 consists of a spindle carrier 10.1 rotatably mounted in the machine frame 12.
• a first projecting winding spindle 7.1 and a second projecting winding spindle 11.1 are held offset on the spindle carrier 10.1 and offset by 180 °.
• the first winding spindle 7.1 is in an operating position for winding several threads.
• the second winding spindle 11.1 is in a change position for exchanging full bobbins for empty bobbin tubes.
• a second spindle carrier 10.2 arranged in the same plane is held in the machine frame 12 in the second winding station 29.2.
• the spindle carrier 10.2 carries the projecting winding spindles 7.2 and 11.2.
• the winding spindle 7.2 is in the operating position and the winding spindle 11.2 is in a changing position.
• the spindle carriers 10.1 and 10.2 are designed as revolving turrets, which are held rotatably in the machine frame 12. Both winding turrets 10.1 and 10.2 are coupled to a common rotary drive 30, the winding turrets 10.1 and 10.2 being drivable in opposite directions.
• the rotary drive 30 is connected to a central control device 21.
• Each of the winding spindles held on the spindle carriers 10.1 and 10.2 Your 7.1, 7.2,, 11.1 and 11.2 is assigned a spindle drive, in FIG. 2 the spindle drives 23.2 and 31.2 of the winding spindles 7.2 and 11.2 of the winding station 29.2 are shown.
• the spindle drives 23.1, 23.2, 31.1 and 31.2 of the winding spindles of both winding positions 29.1 and 29.2 are connected to the central control device 21. ;
• Each of the spindle carriers 10.1 and 10.2 is preceded in each case by a pressure roller 6.1 and 6.2.
• the pressure roller 6.1 cooperate with the winding spindle 7.1 in order to wind a thread sheet 1.1 to a bobbin 9.1. While the threads are being wound up, the pressure roller 6.1 lies against the circumference of the bobbins 9.1 to be wound.
• the pressure roller 6.2 interacts with the winding spindle in the operating position, in this case 7.2, in order to wind a second group of threads 1.2 into bobbins 9.2.
• the pressure roller 6.2 rests on the circumference of the coils 9.2 to be wound.
• the pressure rollers 6.1 and 6.2 are rotatably mounted on a holder 13 and rigidly connected to one another by the holder 13.
• the holder 13 carries a traversing device 4 arranged upstream of the pressure rollers 6.1 and 6.2.
• the traversing device 4 is arranged in a central plane between the winding positions 29.1 and 29.2 and has several traversing thread guides 5.1 and 5.2 for each winding position 29.1 and 29.2, through which the incoming threads the thread coulters 1.1 and 1.2 are moved back and forth within the traverse strokes.
• the traversing device 4 can be formed, for example, by a reversible thread shaft which has one or more grooves on the circumference for guiding the traversing thread guides 5.1 and 5.2.
• a thread guide carrier 3 is provided on an upper side of the holder 13 and carries two groups of thread guides 2.1 and 2.2.
• the group of thread feeders 2.1 is assigned to winding unit 29.1 and the group of thread feeders 2.2 is assigned to winding unit 29.2.
• the holder 13 is held in a vertically movable manner on the machine frame 12 by a slide 15 and the slide guides 14.1 and 14.2.
• the carriage 15 is held in this way by a force transmitter 32 in the carriage guides 14.1 and 14.2; that the pressure rollers 6.1 and 6.2 each have a predetermined contact force during the winding of the threads of the thread sheets 1.1 and 1.2 against the respective bobbins 9.1 and 9.2.
• the force transmitter 32 is formed by two relief cylinder units 16.1 and 16.2, by means of which the total weight of the two pressure rollers 6.1 and 6.2 and of the holder 13 and the components additionally attached to the holder 13, such as the traversing device 4, is supported.
• the relief cylinder units 16.1 and 16.2, which engage the carriage 15 on both sides of the device, are connected to a control device 21, by means of which the support action of the relief cylinder units 16.1 and 16.2 can be controlled.
• the contact force acting during the winding of the threads between the pressure rollers 6.1 and 6.2 and the bobbins 9.1 and 9.2 is determined by a proportion by weight of the total weight.
• FIGS. 1 to 3 In the exemplary embodiment shown in FIGS. 1 to 3, four threads of the thread groups 1.1 and 1.2 are wound into a bobbin 9.1 and 9.2 in the winding stations 29.1 and 29.2.
• the device is shown in Fig. 1 at the beginning of the winding process and in Figs. 2 and 3 during the winding process.
• more than four winding tubes can be held simultaneously by a winding spindle 7.1 and the winding spindle 7.2.
• a thrust ring 17.1 and 17.2 is held at the bearing end of the winding spindles 7.1 and 7.2.
• the thrust rings 17.1 and 17.2 are identical in their outer diameter.
• the outer diameter of the thrust rings is 17.1 and 17.2 somewhat larger than the diameter of the bobbin tubes 8.1 and 8.2.
• the thrust rings 17.1 and 17.2 are preferably arranged on the circumference of the pressure roller 6.1 and 6.2.
• the pressure rollers 6.1 and 6.2 are guided into a lower position by the slide 15 and the relief cylinder unit 16.1 and 16.2.
• a relief pressure is set in the relief cylinder units 16.1 and 16.2 by the control device 21, which pressure compensation means the weight of the pressure rollers 6.1 is only slight.
• a contact force now acts between the pressure rollers 6.1 and 6.2 and the winding spindles 7.1 and 7.2, which leads to the pressure roller 6.1 reaching the circumference of the thrust ring 17.1 and the pressure roller 6.2 reaching the circumference of the thrust ring 17.2. It is irrelevant whether the threads are fed through auxiliary devices (not shown here) for the first application or when changing the bobbin.
• the winding spindles 7.1 and 7.2 are now ready to take up the threads of the thread groups 1.1 and 1.2. This situation is shown in Fig. 1.
• the pressure rollers 6.1 and 6.2 and the winding spindles 7.1 and 7.2 have parallel elasticities in order to obtain a uniform contact over the entire length.
• a switchover of the contact force to a contact force is initiated via the control device.
• the relief cylinder units 16.1 and 16.2 are activated, so that a higher relief pressure is effective for supporting the pressure rollers 6.1 and 6.2.
• the pressure rollers 6.1 and 6.2 rest with the contact force on the circumference of the coils 9.1 and 9.2 forming. This situation is shown in FIG. 3.
• the contact force is preferably kept constant during the winding of the threads on the winding spindles 7.1 and 7.2.
• the relief pressure in the relief cylinder units 16.1 and 16.2 is, for example, given value set, sensed and regulated via the control device 21. With such a pressure control, the evasive movement of the carriage 15 can also be advantageously controlled.
• Such controls or regulating processes for carriages in the winding machine are generally known and are described in more detail, for example, in DE 25 44 773 I, so that no further explanation is given here.
• the evasive movement required during winding of the threads of the thread coulters 1.1 and 1.2 due to the growth of the bobbins 9.1 and 9.2 can in principle be carried out in this embodiment both by the movably held holder 13 and by the movably held winding spindles 7.1 and 7.2. Due to the fixed arrangement of the pressure rollers 6.1 and 6.2 on the holder 13, the coils 9.1 and 9.2 can grow in synchronization by moving the slide 15.
• the rotary drive 30 of the spindle carriers 10.1 and 10.2 can preferably be operated stepwise or continuously in order to perform an evasive movement. Both spindle carriers 10.1 and 10.2 are coupled to one another by a gear mechanism, so that the same center distance can always be maintained between the winding spindles and the associated pressure rollers during winding, which then increases in steps or continuously.
• FIG. 2 shows the operating situation in which the coils 9.1 and 9.2 are shortly before completion.
• the holder 13 with the pressure rollers 6.1 and 6.2 is held on the machine frame 12 just before an upper position of the slide 15.
• the evasive movement during winding of the coils 9.1 and 9.2 on the winding spindles 7.1 and 7.2 was carried out essentially by the movement of the carriage 15. Regardless of the evasive movement of the pressure rollers 6.1 and 6.2, a predetermined contact force is set between the pressure rollers 6.1 and 6.2 and the coils 9.1 and 9.2. As soon as the coils 9.1 and 9.2 have reached their prescribed final diameter a change.
• the spindle carrier 10.1 is rotated clockwise and the spindle carrier 10.2 counterclockwise, so that the respective winding spindles 11.1 and 11.2 reach the operating area and the winding of the threads of the thread coulters 1.1 and 1.2 can continue.
• the pressure rollers 6.1 and 6.2 are guided into their lower position by the carriage 15.
• there is a switch from the contact force to the contact force so that the pressure rollers 6.1 and 6.2 reach the respective thrust rings of the winding spindles 11.1 and 11.2.
• a new winding trip begins.
• the winding spindle 7.1 is coupled to a spindle drive 23.1 via a spindle end 22.1 in the winding station 29.1.
• a control unit 24.1 is assigned to the spindle drive 23.1 and is connected to the higher-level control device 21.
• the coil 9.1 wound on the winding spindle 7.1 is shown in dashed lines.
• the freely rotatable pressure roller 6.1 which is also shown in dashed lines, lies on the circumference of the coil 9.1.
• the pressure roller 6.1 has a roller end 18.1.
• a speed sensor 20 is assigned to the roller end 18.1, by means of which the rotational speed of the pressure roller 6.1 can be detected.
• the speed sensor 20 is connected to the control device 21.
• the winding spindle 7.2 is coupled to the spindle drive 23.2 by the spindle end 22.2.
• a control device 24.2 is assigned to the spindle drive 23.2 and is also connected to the control device 21.
• the coil 9.2 also shown in dashed lines, on the circumference of the winding spindle 7.2 is formed, is in contact with the second pressure roller 6.2.
• the pressure roller 6.2 of the second winding unit 29.2 is also freely rotatable.
• the pressure roller 6.2 is coupled with a roller end 18.2 by a gear 19 to the pressure roller 6.1 of the first winding unit 29.1.
• the gear means 19 is, in this exemplary embodiment, mechanically formed by a belt or a chain, so that both pressure rollers 6.1 and 6.2 of both winding units rotate at the same speed.
• To wind up the threads 1.1 in the winding station 29.1, the winding spindle 7.1 is driven clockwise by the spindle drive 23.1.
• the pressure roller 6.1 lies against the circumference of the coil 9.1 to be wound and is driven by friction in the opposite sense.
• the winding spindle 7.2 is driven counterclockwise by the spindle drive 23.2 in order to wind the thread 1.2 to the bobbin 9.2.
• the pressure roller 6.2 rotates clockwise on the circumference of the coil 9.2 at the corresponding speed of the pressure roller 6.1.
• the transmission of rotation between the pressure rollers 6.1 and 6.2 is carried out by the gear means 19.
• Both winding positions 29.1 and 29.2 are wound synchronously, so that each of the winding spindles 7.1 and 7.2 has an identical structure of the spools 9.1 and 9.2.
• the speed of rotation of the pressure roller 6.1 is continuously detected by the speed sensor 20 and given to the control device 21.
• a set speed of the pressure roller 6.1 is stored in the control device 21.
• a control signal is generated and given to the control units 24.1 and 24.2.
• the control units 24.1 and 24.2 change the drive speeds of the spindle drives 23.1 and 23.2 in the desired sense that there is a changed actual rotational speed on the pressure roller 6.1.
• the spindle drives 23.1 and 23.2 are preferably formed by asynchronous motors.
• the exemplary embodiment shown in FIG. 5 is essentially identical to the exemplary embodiment according to FIG. 4.
• the pressure rollers 6.1 and 6.2 are driven by an external drive 25, which is formed by two electric motors 28.1 and 28.2 and an associated control unit 27.
• the electrical coupling of the pressure rollers 6.1 and 6.2 can thus be combined with an external drive 25.
• the winding spindles 7.1 and 7.2 are each driven by the spindle drives 23.1 and 23.2.
• the spindle drives 23.1 and 23.2 can be designed as an asynchronous motor or as a synchronous motor.
• a control unit 24 is assigned to the spindle drives 23.1 and 23.2.
• the control device 24 is connected to the control device 21 and, together with the speed sensor 20, forms a control circuit in order to keep the peripheral speed of the coils 9.1 and 9.2 constant.
• the method according to the invention and the device according to the invention are not limited to the arrangement of the individual units shown in FIGS. 1 and 3.
• the winding spindles can be held on non-moving spindle carriers.
• the method according to the invention and the device according to the invention are not limited to the arrangement of the individual units shown in FIG. 1.
• the pressure rollers in particular can be held in the winding stations by rocker 1 so that they can move radially with respect to winding spindles.
• the mounting of the winding spindles and the pressure rollers is essentially only decisive for the execution of the evasive movement. Regardless of the evasive movement, however, the peripheral speed of the bobbin must always be set such that the threads can be wound with the same winding speed and thus essentially with constant thread tension.

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• Winding Filamentary Materials (AREA)
• Winding Of Webs (AREA)
• Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)

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Applications Claiming Priority (2)

Publications (1)

Family

ID=34917061

Family Applications (1)

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Citations (7)

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• 2005
  • 2005-02-25 CN CNB2005800067123A patent/CN100497145C/zh active Active
  • 2005-02-25 JP JP2007501182A patent/JP4575429B2/ja active Active
  • 2005-02-25 WO PCT/EP2005/002008 patent/WO2005085111A1/de active IP Right Grant
  • 2005-02-25 EP EP05715549A patent/EP1727758B1/de not_active Not-in-force
  • 2005-02-25 KR KR1020067019467A patent/KR101121405B1/ko active IP Right Grant
  • 2005-02-25 DE DE502005004637T patent/DE502005004637D1/de not_active Expired - Fee Related

Patent Citations (7)

Non-Patent Citations (1)

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