WO2006058772A1 - Vorrichtung zum stauchkräuseln - Google Patents
Vorrichtung zum stauchkräuseln Download PDFInfo
- Publication number
- WO2006058772A1 WO2006058772A1 PCT/EP2005/012902 EP2005012902W WO2006058772A1 WO 2006058772 A1 WO2006058772 A1 WO 2006058772A1 EP 2005012902 W EP2005012902 W EP 2005012902W WO 2006058772 A1 WO2006058772 A1 WO 2006058772A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rollers
- electric motors
- drive
- control unit
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
Definitions
- the invention relates to a device for compression crimping of synthetic fibers according to the preamble of claim 1.
- a generic device for compression crimping of synthetic fibers is known from EP 0 582 129 A1.
- two rotatably driven rollers are arranged in such a way to each other in a machine frame, that forms a narrow nip between the rollers.
- the rollers are driven by a group drive, wherein the drive shafts of the rollers are coupled together by gear means.
- the rollers are associated with a stuffer box which receives the fibers passing through the nip.
- the rollers are driven at a predetermined peripheral speed.
- the fiber material is drawn into the nip and required in the stuffer box. It caused on the outlet side of the rollers by changing buckling of the strand-like fiber material a crimp.
- the nip set between the rolls is adjusted as a function of the fiber material so that the rolls are held to one another with a contact pressure.
- the group drive is therefore formed by an adjustable transmission to allow such changes in distance between the rollers.
- this requires additional mechanical means, which increases the risk of transmission errors. It is therefore an object of the invention to develop a device for Stauchk syndromeseln of synthetic fibers of the generic type such that a trouble-free drive of the rollers in each selected operating position is possible.
- Another object of the invention is to provide a device for crimping synthetic fibers in which the rolls are drivable with high flexibility.
- the invention selects a completely deviating from the previous drive technology of the rollers design of the group drive in the form that each of the rollers is driven by a separate electric motor.
- each of the rollers is driven by a separate electric motor.
- the electric motors can be controlled both jointly by a group control unit or separately by a respective control unit assigned to the electric motor.
- the group control device is coupled to a control unit, by means of which the specifications and settings of a specific peripheral speed of the rollers take place.
- At least one of the rollers is associated with a sensor means and connected to the group control unit.
- the actual value of a rotational speed of the drive shaft of one of the rollers or the peripheral speed of one of the rollers sensed by the sensor means can thus be adjusted and continuously regulated with the respectively preset desired value.
- the greatest degree of freedom and flexibility for driving the rollers is given by a separate control of the electric motors.
- the control devices associated with the electric motors are coupled to a control unit for presetting the setting values. In this case, it is possible to drive the rolls at identical peripheral speeds or with a peripheral speed difference.
- each of the rollers is assigned a sensor means and coupled to the respective control unit.
- the speed control formed on each drive train of the rollers allows high process uniformity to be achieved in the production of crimped fibers.
- the relatively large torques are preferably provided by so-called premagnetic motors.
- the electric motors of the group drive are constructed identically as a synchronous motor, wherein the synchronous motors each have a rotor equipped with a plurality of permanent magnets.
- Such high-torque electric motors can preferably be arranged in axial extension to the rollers.
- a connection of the rotor of the electric motor to the drive shaft of the rollers is preferably possible by means of a hollow shaft mounting, so that high torques can be reliably transmitted.
- the electric motors are preferably connected via drive shafts with the drive shafts of the rollers, so that a movement of at least one of the rollers in an operating position, insertion position or cleaning position is possible.
- Fig. 1 shows schematically a view of a first embodiment of the inventive device
- FIG. 2 schematically shows a view of a further embodiment of the device according to the invention.
- FIG. 3 schematically shows a cross-sectional view of an embodiment of a device
- a first embodiment of the device according to the invention is shown schematically in a view.
- the device for compression crimping of synthetic fibers consists essentially of two rollers 1 and 2 rotatably mounted in a machine frame 4 and the stuffer box 10 downstream of the rollers 1 and 2.
- the stuffer box 10 adjoining the rollers 1 and 2 is in a transverse
- a nip 3 is formed to be able to move in a fiber material and curl by buckling.
- Each of the rollers 1 and 2 is coupled to a drive shaft 5.1 and 5.2.
- the drive shaft 5.1 of the upper roller 1 is connected directly to an electric motor 6.1 at a drive unit.
- the lower roller 2 is connected via the drive shaft 5.2 directly to a second electric motor 6.2.
- the distance between the rollers 1 and 2 can be changed.
- the upper section 1 with the drive shaft 5.1 and the electric motor 6.1 is preferably held adjustably in the machine frame 4 relative to the lower roller 2.
- the mechanical means required for holding and guiding the upper roller 1 are not shown in FIG. 1 and are not described in detail here.
- the roller 1 is held for this purpose on a pivot carrier, which can be guided by a piston-cylinder unit.
- the piston-cylinder unit serves to hold the upper roller 1 in a nip 3 determining operating position.
- a group control unit 8 is provided, which is coupled to the electric motors 6.1 and 6.2.
- the group control unit 8 is associated with a speed sensor 9, which detects the rotational speed of the drive shaft 5.1.
- a control unit 23 is arranged upstream of the group control unit 8.
- a target specification of the drive speed is given via the control unit 23 to the group control unit 8, so that the two electric motors 6.1 and 6.2 drive the associated drive shafts 5.1 and 5.2 with identical settings.
- the roller 1 and the roller 2 are thus driven at the same peripheral speeds.
- the control of the electric motors 6.1 and 6.2 is monitored by a speed control.
- the input speed of the drive shaft 5.1 is detected by the speed sensor 9 and the group control unit 8 abandoned.
- the actual value of the drive speed is compared with the preset speed. Nominal value of the drive speed compared. In the case of a deviation, the control of the electric motors 6.1 and 6.2 with corrected frequency takes place.
- the exemplary embodiment of the device according to the invention shown in FIG. 1 is characterized by a direct drive of the rollers, so that no additional mechanical means for the transmission or for coupling the drive shafts are required.
- the device according to the invention is designed with a particularly compact and substantially maintenance-free group drive.
- the electric motors of the rollers can also be arranged separately as a structural unit.
- FIG. 2 a further exemplary embodiment of the device according to the invention is shown in FIG.
- the structure and function of the exemplary embodiment of FIG. 2 is substantially identical to the exemplary embodiment of FIG. 1, so that at this point only the differences will be explained and otherwise reference is made to the above description.
- the group drive of the rollers 1 and 2 is also formed in the embodiment of FIG. 2 by two separate electric motors 6.1 and 6.2.
- the electric motors 6.1 and 6.2 are held as a unit on a machine frame 12.
- the machine frame 12 is set up at a distance from the machine frame 4, in which the rollers 1 and 2 and the stuffer box 10 are held.
- the upper roller 1 is connected to a drive shaft 5.1, which is coupled at a free end outside of the machine frame 4 with a propeller shaft 13.1.
- the propeller shaft 13.1 has in its opposite end a connection to a rotor shaft 24.1 of an electric motor 6.1.
- the lower roller 2 is connected by the drive shaft 5.2 and a second propeller shaft 13.2 directly to a rotor shaft 24.2 of the second electric motor 6.2.
- each of the electric motors 6.1 and 6.2 each have a control unit 7.1 and 7.2 assigned.
- the control devices 7.1 and 7.2 are coupled to an upstream control unit 23.
- To control the upper roller 1 is associated with a sensor means 11.1, which is connected via a signal line to the control unit 7.1.
- the lower roller 2 is associated with the sensor means 11.2, which is connected via a signal line to the control unit 7.2.
- As a sensor means 11.1 and 11.2 may be formed, for example, as a pulse, by which a direct detection of the peripheral speed of the rollers 1 and 2 is possible.
- the directly driven rollers 1 and 2 can be controlled and regulated independently of one another in terms of their peripheral speeds.
- the specifications for setting certain peripheral speeds is performed by the control unit 23, which gives each of the control units 7.1 and 7.2 a target specification.
- corresponding control signals for controlling the electric motors 6.1 and 6.2 are generated on the basis of the target specifications.
- Each of the electric motors 6.1 and 6.2 directly drives the drive shafts 5.1 and 5.2 and thus the rollers 1 and 2 via the drive shafts 13.1 and 13.2 coupled to the rotor shafts 24.1 and 24.2.
- the set on the rollers 1 and 2 peripheral speed is detected by the sensor means 11.1 and 11.2 and the associated control units 7.1 and 7.2 transmitted.
- corrections in the control of the electric motors 6.1 and 6.2 can thus be carried out quickly and precisely.
- preferably high-torque permanent magnet motors which are also known as torque motors, are used for directly driving the rollers 1 and 2.
- Fig. 3 is an embodiment of a connection between a drive shaft and an electric motor, as it could be embodied, for example, in the embodiment of FIG. 2, shown.
- the electric motor 6.1 for example for the upper roller 1, has a hollow shaft space 16 in which a connection section 17 of the drive shaft 5.1 or alternatively the rotor shaft 24.1 is inserted.
- the Hohlwellenaufhahme 16 is formed in a housing 14 of the electric motor 6.1. Li the housing 14, an annular stator 15 is attached.
- the stator 15 encloses an annularly formed within the stator 15 rotor 20, which carries a plurality of juxtaposed permanent magnets on the periphery. In the cross-sectional view shown in Fig. 3, the permanent magnets 21.1 and 21.2 are shown.
- the rotor 20 is rotatably supported by the bearings 22 in the housing 14. On one end face of the rotor 20 is fixedly connected to a collar of a ring bushing 19.
- the ring bushing 19 is rotatably coupled to the circumference of the connection portion 17.
- the connection section 17 is supported by the bearings 18 in the housing 14.
- the electric motor embodied as a synchronous motor in FIG. 3 represents a preferred drive variant for driving the rollers.
- the use of permanent magnet magnets in the air gap enables a high power output side at low rotational speeds.
- the permanent magnet motor is particularly suitable for driving rollers of a Stauchk syndromeselvorraum directly.
- the device according to the invention is characterized by a low-noise overall system, which shows high process uniformity due to the good control properties of the group drive.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112005003096T DE112005003096A5 (de) | 2004-12-03 | 2005-12-02 | Vorrichtung zum Stauchkräuseln |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004058360 | 2004-12-03 | ||
| DE102004058360.9 | 2004-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006058772A1 true WO2006058772A1 (de) | 2006-06-08 |
Family
ID=35892561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2005/012902 Ceased WO2006058772A1 (de) | 2004-12-03 | 2005-12-02 | Vorrichtung zum stauchkräuseln |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101068962A (de) |
| DE (1) | DE112005003096A5 (de) |
| WO (1) | WO2006058772A1 (de) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3220083A (en) * | 1960-06-17 | 1965-11-30 | Eastman Kodak Co | Apparatus for the manufacture of uniformly crimped filter tow |
| DE1938267A1 (de) * | 1969-07-28 | 1971-02-11 | Vepa Ag | Kraeuselmaschine |
-
2005
- 2005-12-02 WO PCT/EP2005/012902 patent/WO2006058772A1/de not_active Ceased
- 2005-12-02 DE DE112005003096T patent/DE112005003096A5/de not_active Withdrawn
- 2005-12-02 CN CNA200580041594XA patent/CN101068962A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3220083A (en) * | 1960-06-17 | 1965-11-30 | Eastman Kodak Co | Apparatus for the manufacture of uniformly crimped filter tow |
| DE1938267A1 (de) * | 1969-07-28 | 1971-02-11 | Vepa Ag | Kraeuselmaschine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112005003096A5 (de) | 2011-04-21 |
| CN101068962A (zh) | 2007-11-07 |
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