EP2909121A1 - Tänzervorrichtung - Google Patents
TänzervorrichtungInfo
- Publication number
- EP2909121A1 EP2909121A1 EP11778791.1A EP11778791A EP2909121A1 EP 2909121 A1 EP2909121 A1 EP 2909121A1 EP 11778791 A EP11778791 A EP 11778791A EP 2909121 A1 EP2909121 A1 EP 2909121A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressed air
- torque
- dancer
- lever
- dancer device
- 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.)
- Granted
Links
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
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
- B65H59/36—Floating elements compensating for irregularities in supply or take-up of material
Definitions
- the present invention relates to a dancer device according to the preamble of the main claim.
- Such a dancer device has a dancer arm, which is attached as a one- or two-sided lever on a pivot axis.
- the dancer arm can be provided with one or with two deflection rollers looped around by the long goods. In the case of only one deflection roller, a partial transfer of the deflection roller takes place. In the case of two pulleys, the long goods wrap around the pulleys. Since the long goods are under a biasing force, as a result of the biasing force of the dancer arm is deflected from a predetermined position and continue to use the Auslenkksignal in the processing line of the long product.
- the deflection of the dancer arm by the tensile force that prevails in the long goods counteracts a restoring torque, which is applied in a known embodiment of a coil spring on the pivot axis of the dancer device.
- the processing line can be adjusted so that a practically constant tensile force is realized in the processing line.
- BEST ⁇ TIGUNG3KOPIE are driven to suspend the long goods of the lowest possible traction.
- dancers are known in which the restoring moment z. B. is applied via an electric motor whose drive voltage is variable.
- the problem of the present arrangement is therefore to further develop the known dancer device so that it is particularly suitable for withdrawal forces of very zugempbestimmlichen long goods, especially if they are below 30 N, z. B. 2.7 N.
- the angular deflection of the axis of rotation can also be tapped electronically directly via an angle measuring attachment, so that immediately after deviation of the dancer arm from its zero position z.
- the servo drive of the drive of the supply reel can be readjusted.
- Essential to the invention is a torque generator for generating the restoring torque, which generates an independent of the respective rotational position present torque which should be constant over the entire rotation angle of the dancer arm as far as possible and which has the lowest possible inertia at minimum breakaway effects from standstill.
- the torque sensor sits directly rigid on the pivot axis and can be acted upon by a constant, well-defined and preferably variably adjustable force.
- the torque transmitter is to be acted on by a compressed air source in a direction of rotation of the dancer arm, so that the torque transmitter is not acted on by compressed air in the opposite direction.
- Compressed air source in the sense of the present invention is called overpressure or negative pressure in relation to the environment.
- the compressed air stream may be formed as a free compressed air stream or suction air stream.
- the compressed air stream is blown into a closed housing, in which a sitting on the pivot axis lever is assembleerformig movable, so that the compressed air chamber is substantially sealed by the pointer-shaped lever.
- the compressed air chamber increases, so that the compressed air can flow in predetermined pressure and causes an increasing angle of the pivot axis until readjustment of the speed in the processing line.
- This angle of rotation is in turn used to generate a corresponding manipulated variable of the speed-regulating control loop.
- the compressed air chamber closed by the pointer-shaped lever has on its side the application of compressed air to a compressed air connection, and on the other side an air outlet opening, in the case of suction air, a suction air connection.
- a compressed air source with adjustable delivery pressure has the advantage that even with one and the same basic position different target tensile forces can be specified, with increasing traction a higher set delivery pressure is specified.
- a compressed air reservoir / vacuum reservoir is also proposed, which would be located between the compressed air source / Saug Kunststoffsenke and the torque sensor. If you want to make as small as possible, but always non-contact remaining air gaps to get along with a low air requirement, is also proposed that the pivot axis sits in the axial direction at least on one side of the torque sensor in a fixed bearing.
- the pointer-shaped lever should on the one hand be of low mass moment of inertia, but on the other hand of high stability.
- the lever has a H-shaped cross section, wherein the end faces of the upright webs are parallel to the adjacent housing surfaces.
- the upright webs have a sharp edge on their side facing the pressurized air, and have a rounded edge on their side away from the pressurized air.
- lever and housing are made of the same material, it can be assumed that the arrangement will function stably even in wide temperature ranges.
- Fig.l an axial section of the invention
- the figures show a dancer device 1 for the removal of long goods 2, which Z- or S-shaped over two pulleys 3, 4 is performed.
- the dancer device has a dancer arm 6 acted upon by the elongate material 2, which has to adopt a desired position as a function of the size of the adjacent tensile force 5 and which carries the deflection rollers 3, 4 at the end.
- the dancer arm 6 is rotatably mounted about the pivot axis 7 and the pivot axis 7 is acted upon by a torque generator 10 oppositely directed with a tensile force torque 8 directed return torque 9.
- a torque transmitter 10 is provided for the restoring torque 9, which generates a torque which is independent of the respective rotational position of the dancer arm 6.
- the respective angular position of the pivot axis 7 is detected by a arranged at the free end of the pivot axis 7 angle sensor 60 and transmitted to an electrical circuit for evaluation of the signal in the arrangement shown.
- the torque sensor 10 is realized here by a pointer-shaped lever 13 which sits on the pivot axis 7 and on its rotary path within a closed housing, which is represented by the reference numerals 14a, 14b and 14c, movable ,
- the torque of the pointer-shaped lever 13 is caused by an imbalance of forces, which arises from unilaterally fed compressed air / withdrawn suction air.
- the housing on one side of the pointer-shaped lever -hier- a compressed air connection 15 which is connected to a compressed air supply, and on the other side an air outlet opening 16th
- any other gaseous medium may be used for the purpose of the invention.
- This can be z. B. be required in the explosion-proof area, if instead of the compressed air, an inert gas is to be used.
- the pointer-shaped lever 13 is of low mass despite its considerable dimensions.
- the profile of the pointer-shaped lever according to FIG. 3 is an H-profile, which was facilitated by holes in the transverse web and whose upright webs run with their end faces 22a, 22b, 23a, 23b parallel to the adjacent housing surfaces.
- the compressed air source 12 can deliver an adjustable delivery pressure via corresponding activation of the engine.
- a P / U converter 50 is provided, which picks up the pressure in the supply line and converts it into a control signal for the motor of the compressed air source 12.
- the jerk can also be controlled directly via a controller 40. Now occur speed changes in Langgut 2, the rotational position of the lever 6 is tapped via a corresponding angle sensor 60 and converted in an optional converter into an electrical variable, which serves to control that motor 30, which is responsible for the speeds of the long goods.
- a compressed air reservoir 18 is additionally proposed, which is to be arranged in the supply line.
- Fig. 1 shows that the pivot axis 7 is seated in the axial direction at least on one side of the torque sensor 10 in a fixed bearing 19.
- the other side of the pivot axis is stored here in a floating bearing.
- the contact-avoiding air gaps 17a, 17c which are relevant here in the axial direction, can be dimensioned very small so that the air loss between the pointer-shaped lever 13 and the housing inner surfaces can remain very small.
- FIG. 3 shows the H-shaped cross section of the lever 13, which is installed in the housing 14a, 14b, 14c such that the upright webs 20, 21 run perpendicular to the housing surfaces swept by the lever, so that between the end faces 22a, 22b and 23a, 23b, an air flow is created, which of the pressurized air Side of the lever 13 is directed to the opposite side.
- the upright webs 20, 21 have a sharp edge 24 on their side facing the compressed air supply, and a rounded edge 25 on their side remote from the pressurized air.
- lever 13 and the housing 14a, 14b, 14c made of the same material, so that temperature-related dimensional changes affect both the lever and the housing and therefore the dimensions of the contact-preventing air gaps 17a, 17b, 17c, 17d also at different temperatures remain unchanged.
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Advancing Webs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010047031 DE102010047031B4 (de) | 2010-09-30 | 2010-09-30 | Tänzervorrichtung |
| PCT/EP2011/004882 WO2012041508A1 (de) | 2010-09-30 | 2011-09-30 | Tänzervorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2909121A1 true EP2909121A1 (de) | 2015-08-26 |
| EP2909121B1 EP2909121B1 (de) | 2016-11-02 |
Family
ID=44905978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11778791.1A Active EP2909121B1 (de) | 2010-09-30 | 2011-09-30 | Tänzervorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2909121B1 (de) |
| DE (1) | DE102010047031B4 (de) |
| WO (1) | WO2012041508A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ2019651A3 (cs) * | 2019-10-21 | 2021-04-28 | Rieter Cz S.R.O. | Způsob pohonu mechanického prvku obsahujícího přízový záchyt na textilním stroji, zařízení pro pohyb přízí na textilním stroji a textilní stroj |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB810482A (en) * | 1955-09-07 | 1959-03-18 | Linen Ind Res Ass | Improvements to apparatus for tension measurement and or control of textile roves, yarns, threads and the like |
| DE2100566A1 (en) * | 1971-01-07 | 1972-07-20 | Neumunstersche Maschinen und Appa ratebau Gesellschaft mbH, 2350 Neumunster | Tension compensator - for yarn processing |
| EP0122230A1 (de) * | 1983-04-07 | 1984-10-17 | SIG Schweizerische Industrie-Gesellschaft | Anordnung zur Regelung der Spannung in einem länglichen Element |
| JPH0234867B2 (ja) * | 1984-12-18 | 1990-08-07 | Nippon Denshin Denwa Kk | Teikochoryokusenjotainochoryokuchoseisochi |
| DE8527472U1 (de) * | 1985-09-26 | 1985-11-14 | Neumünstersche Maschinen- und Apparatebau GmbH (Neumag), 2350 Neumünster | Fadenspannungsregler |
| DE3775180D1 (de) * | 1986-10-20 | 1992-01-23 | Sulzer Ag | Fadenspannvorrichtung fuer textilmaschine. |
| DE3803146C1 (en) * | 1988-02-03 | 1989-04-06 | Emil Jaeger Gmbh & Co Kg, 4400 Muenster, De | Thread-tensioning device for the weft threads of a weaving machine |
| JPH06255885A (ja) * | 1993-03-08 | 1994-09-13 | Sumitomo Electric Ind Ltd | 線状体の張力付加用ダンサーローラ装置 |
| DE19712689A1 (de) * | 1997-03-26 | 1998-10-01 | Heidelberger Druckmasch Ag | Verfahren zur Regelung der Bahnspannung in einer Rollenrotations-Offsetdruckmaschine |
-
2010
- 2010-09-30 DE DE201010047031 patent/DE102010047031B4/de active Active
-
2011
- 2011-09-30 EP EP11778791.1A patent/EP2909121B1/de active Active
- 2011-09-30 WO PCT/EP2011/004882 patent/WO2012041508A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012041508A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012041508A1 (de) | 2012-04-05 |
| WO2012041508A4 (de) | 2012-07-19 |
| DE102010047031A1 (de) | 2012-04-05 |
| EP2909121B1 (de) | 2016-11-02 |
| DE102010047031B4 (de) | 2012-08-02 |
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