WO2018033304A1 - Verfahren und vorrichtung zum detektieren einer überlast an einem ballenöffner - Google Patents
Verfahren und vorrichtung zum detektieren einer überlast an einem ballenöffner Download PDFInfo
- Publication number
- WO2018033304A1 WO2018033304A1 PCT/EP2017/067376 EP2017067376W WO2018033304A1 WO 2018033304 A1 WO2018033304 A1 WO 2018033304A1 EP 2017067376 W EP2017067376 W EP 2017067376W WO 2018033304 A1 WO2018033304 A1 WO 2018033304A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- overload
- milling drum
- milling
- bale opener
- bale
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G7/00—Breaking or opening fibre bales
- D01G7/06—Details of apparatus or machines
- D01G7/14—Driving arrangements
Definitions
- the invention relates to a method and a device for detecting an overload on a bale opener.
- Bale openers are known. They have milling drums which rotate relative to a bottom on which fiber bales rest about an axis of rotation which extends generally perpendicular to the travel of the respective milling drum. By means of rotation and method, these rollers mill the respective fiber bales on a side facing away from the bottom and thus detach a portion of the fiber material from the respective fiber bale. The milling drums move several times over the fiber bales until their fiber material is almost completely dissolved out. This can be done by reciprocating the milling drums or also continuously in a direction along a circular line. The method for producing such fiber bales cause the fiber material in the bottom facing and remote edge regions has a lower density than in the central, so-called core region.
- the milling drums in the edge region have to extract less fiber material and consequently are less loaded.
- the bale opener can work virtually with normal load. As the milling drum moves further towards the core area due to the feed, it must release more fiber material, which has an increase in the load of the bale opener. Considering that fiber bales usually include foreign material thereof, the load on the respective milling drum associated drive increases. In addition to the raised Energy absorption can lead to damage to the milling head. But even the milling rollers themselves can be overloaded. Overload means in this context exceeding the usual load limits in normal operation. Ie. it does not necessarily have to be a load condition in which equal damage to the bale opener is to be feared.
- the object of the invention is to counteract the aforementioned disadvantages.
- a method for operating a bale opener with at least one milling drum is provided. By rotating this at least one milling drum about an axis of rotation and by moving it along a predetermined travel path at an acute or right angle to the axis of rotation, the bale opener is able to mill a fiber bale. This fiber material is dissolved out of the fiber bale.
- the method includes an initial step. In this step, detection is made when an overload occurs at one or all of the monitored at least one milling drum. This can be done, for example, by monitoring the current consumption of the milling drum drive. If such an overload is detected, a determination is made.
- the presence of an overload condition is determined. This is achieved according to the invention when the above-mentioned, detected overload has occurred continuously along a path covered by the monitored milling drum (s). This path must be equal to or greater than a predetermined distance. Ie.
- the overload condition is independent of time and does not occur immediately when there is an overload. Ie. A continuous overload can also occur if the traversing speed of the milling head of the bale opener decreases and, if necessary, drops to zero. If this is an overload reaction of the bale opener, it may be provided to restart the overload state determination after the milling head has restarted. If the presence of such an overload condition has been detected, a triggering step is entered. The triggering step itself involves the triggering of an overload reaction.
- the overload reaction preferably comprises signaling the determined overload state to the outside with respect to the bale opener, for example in the form of a siren sound. Alternatively or additionally, it includes a shutdown of the bale opener or even only a reduction of the travel speed of the milling head and / or a respective rotational speed of at least the monitored milling drum (s) at which the overload existed at the time of determining the overload condition.
- the method may additionally comprise a step of jumping back to the initial step.
- This springback occurs according to the invention, if it has been determined in the determination step that the overload has ceased and also the distance covered by the at least one milling drum is shorter than or equal to the predetermined distance. Ie. there is no reason to fear any obstacle or damage to the bale opener. The reliability is increased and downtimes are minimized.
- the spring-back can take place when the direction of movement of the at least one milling drum changes. This is because the milling drum (s) are removed or removed from the supposed obstacle.
- the spring-back can take place when the triggering step has been completed, directly or triggered.
- the initiation can be done by a person, for example. Downtime is largely avoided in all three cases mentioned above.
- the predetermined distance can essentially correspond to a dimension of the fiber bale along the travel path of the at least one milling drum. This makes it possible to take into account the different nature of the fiber bales, which may be arranged one behind the other.
- milling drum (s) In the case of monitoring individual milling drums for overload, it is preferable to refer to the milling drum (s) with regard to the distance traveled, in which an overload has been detected and continues to exist. Ie. the milling drum (s) running without overload are not considered, which has advantages in monitoring data processing.
- the bale opener has a plurality of milling drums, in the case of monitoring individual milling drums in the above-mentioned method, if the overload on a monitored milling drum is omitted, preferably another of the milling drums is monitored with overload.
- the aforementioned distance traveled is a sum of the distance traveled by a milling drum until the time of elimination of the overload on the one milling drum and the distance traveled by the other milling drum from the time of elimination of the overload on the one milling drum.
- the method adapts dynamically to the load situation of the milling drums and thus offers greater safety.
- the determination can be carried out by monitoring the current consumption of a drive of the at least one milling drum and / or the bale opener as a whole.
- the determined (measured) is fed to a threshold circuit. When a predetermined threshold value is exceeded, an overload is determined as being present.
- each of the aforementioned methods may be computer implemented.
- the implementation can take place in the bale opener itself and / or in an external device such as a central control system.
- the coupling can be done for example by bus.
- a computer-readable medium which has instructions executable by a processor in order to enable a processor to carry out one of the aforementioned methods.
- this is a memory chip.
- a bale opener according to the invention which can be equipped according to the aforementioned embodiments, ie with one or more milling drums.
- the bale opener is set up to be operated according to one of the aforementioned methods, in which only one milling drum is monitored.
- the bale opener has a plurality of milling drums, it can be configured according to the invention to be operated in accordance with each of the aforementioned methods.
- the bale opener may have a load monitoring device or be coupled thereto.
- the load monitoring device is set up to detect the overload on the monitored milling drum (s). In the simplest case, it is a current detection circuit with a downstream threshold detection logic.
- the bale opener may include or be coupled to a path detection device.
- the path detection device is designed according to the invention to determine the distance traveled by the relevant milling drum (s). In the simplest case, it is an incremental encoder whose incremental disk is rotated by the method of the milling drum (s).
- the bale opener may comprise or be coupled to a protective device.
- This protective device is set up to trigger or execute the overload reaction in the event of an overload condition.
- Figure 1 shows a Ballenfräsan app
- FIG. 2 shows a method for operating the bale opener of Figure 1, according to an embodiment of the invention.
- FIG. 1 shows an arrangement 1 with a bale opener 10 and below its milling head 1 1 along its travel sv arranged in a row fiber bales 2-6.
- a bale opener 10 At this right end of the bale opener 10 is an output section 16 for the fibers, which have been removed from the fiber bales 2-6 by means of milling rollers 12 of the milling head 1 1.
- a control 14 is located at the left end, on the upper side of which a control terminal 15 for operating the bale opener 10 is arranged.
- the fiber bales 2 - 6 are lined up in a known manner next to each other and have, seen vertically, zones of different density.
- the uppermost zones (hz (2, 3) - hz (6, 3)) have the lowest density.
- the central, so to speak, core region of the respective fiber bale 2 - 6 arranged thereunder has a respective height hz (2, 2) - hz (6, 2).
- i indicates the number of the respective fiber bale 2-6 and j the number of the respective zone.
- the heights of the zones of the individual fiber bales can be different from each other.
- the milling head 1 1 passes along the travel sv here horizontally to the right and gradually the fiber bales 2-6, successively from top to bottom of their fibers dissolved out and in a known manner on the output section 15 to downstream machines of the production chain, such as cleaner, passed. This is done by means of a method of the milling head 1 1 and the frame 13 to which it is attached.
- the milling head 1 1 arrives with its rollers 12 in the region of the foreign part 7, it may happen that the foreign part 7 leads to an overload on the motor-driven milling rollers 12. This can be, for example be detected by control technology by means of an increased motor current consumption of the drive motors.
- the width dimension of the fiber bales 2 - 6, which is usually substantially equal in width, is predetermined in terms of control technology, this will result in the milling head 1 1 not being stopped at all. Compared to conventional solutions, this has the advantage that the bale opener 10 is not stopped unnecessarily. If the milling head 1 1 with its milling rollers 12, for example, in the core region of the fiber bale 4 here central, and it is assumed that the density of this fiber bale 4 leads to an overload on the respective milling drum 12 when driving over, the controller 14 would determine along which traveled Distance the overload occurs continuously. Preferably, it is provided that the load values on the milling drums 12 or overloads detected on them are logically ORed together.
- the overload reaction can, for example, result in a reduction of the speed of the overloaded milling drum (s) 12 and / or the travel speed of the milling head 11.
- the milling head 1 1 is lifted slightly above the base 8 (vertically upwards in FIG. 1), so that the milling rollers 12 can no longer penetrate so deeply into the relevant core area.
- the fiber bale 4 may be moved back and forth until its current feed rate has been reached. Only then, according to the invention, would the fiber bale 5 continue.
- Figure 2 shows a dedicated method according to an embodiment of the invention.
- step S1 After a start of a Abfräsvorgangs in step S1 is checked in a subsequent step S2, whether an overload has been detected. If this is not the case (no branch after step S2), the query is made in a subsequent step S5 whether the Abfräsvorgang is still performed control technology. If this is the case (yes branch after step S5), the program jumps back to step S2.
- step S5 If the milling operation is finished (No branch after step S5), the process is ended in a subsequent step S6.
- step S2 If an overload was detected in step S2 (yes branch after step S2), it is checked in a subsequent step S3 whether the traveled path corresponds to or exceeds a predetermined path.
- the distance traveled is the distance traveled by the milling head or its milling rollers 12 distance from the time when the overload was detected for the first time and since then continuously stops.
- step S3 If the traveled distance is less than or equal to the predetermined path (no branch after step S3), it jumps to step S5. This ensures continuous monitoring for a permanently existing overload.
- step S3 If the distance traveled is greater than or equal to the predetermined path (Y branch after step S3), the aforementioned overload reaction takes place in a subsequent step S4. After the overload reaction, which may include a restart of the milling process, for example, jumps back to step S2. Alternatively, in the process, step S6 is skipped, and the process is ended.
- the invention is not limited to this embodiment.
- the method can be applied to any type of bale opener. If an overload condition has been determined, an external signaling with respect to the bale opener 10 is preferably provided, be it on the bale opener 10 itself (warning light, warning sound, etc.) and / or at a control center.
- Checking for the continuous presence of an overload can take place by means of a polling mechanism or else in the context of a push mechanism.
- the polling mechanism checks periodically (for example every hundredth of a second) whether there is an overload.
- the push mechanism the check mode is initiated in step S3 when an overload is detected for the first time. Thereafter, an odometer, for example, an incremental encoder is started, and the distance traveled by means of the milling head 1 1 path is determined. If the determined path is greater than or equal to the predetermined path, the overload reaction occurs.
- the route determination is simply switched off. This can be done in the simplest case by means of a threshold value circuit. Exceeds the motor current consumption of the drive motors of the milling drums 12, for example, a predetermined value (overload), the controller 14 is instructed to start the route detection. If the overload reaction has occurred in the meantime, the travel sensor is switched off.
- a threshold value circuit Exceeds the motor current consumption of the drive motors of the milling drums 12, for example, a predetermined value (overload)
- the controller 14 is instructed to start the route detection. If the overload reaction has occurred in the meantime, the travel sensor is switched off.
- the monitoring can also be done centrally.
- an overload has been detected with respect to the fiber bale 6, it may be provided during the change of direction of the milling head 11 to restart the path detection. Alternatively it can be provided to continue the displacement detection continuously, provided that the overload stops, and this preferably with respect to the front in the direction of fiber bale 1 milling drum 12th
- the current consumption of the entire bale opener 10 can be monitored or used for overload detection.
- This has the advantage that usually already existing circuits in the bale opener 10 are available, which has a favorable effect on the cost.
- the invention provides a very simple way to reliably detect obstacles and avoid false tripping due to overload on the milling rollers 12 as far as possible.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Storage Of Harvested Produce (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201780050116.8A CN109563650B (zh) | 2016-08-15 | 2017-07-11 | 用于探测开包机上的过载的方法和设备 |
BR112019002886-2A BR112019002886B1 (pt) | 2016-08-15 | 2017-07-11 | Método e dispositivo para detectar uma sobrecarga em um abridor de fardo |
EP17737585.4A EP3497269B1 (de) | 2016-08-15 | 2017-07-11 | Verfahren und vorrichtung zum detektieren einer überlast an einem ballenöffner |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016115097.5 | 2016-08-15 | ||
DE102016115097 | 2016-08-15 | ||
DE102017109548.9 | 2017-05-04 | ||
DE102017109548.9A DE102017109548A1 (de) | 2016-08-15 | 2017-05-04 | Verfahren und Vorrichtung zum Detektieren einer Überlast an einem Ballenöffner |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018033304A1 true WO2018033304A1 (de) | 2018-02-22 |
Family
ID=61018675
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/067376 WO2018033304A1 (de) | 2016-08-15 | 2017-07-11 | Verfahren und vorrichtung zum detektieren einer überlast an einem ballenöffner |
PCT/EP2017/067880 WO2018033311A1 (de) | 2016-08-15 | 2017-07-14 | Ballenöffner |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/067880 WO2018033311A1 (de) | 2016-08-15 | 2017-07-14 | Ballenöffner |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP3497269B1 (de) |
CN (2) | CN109563650B (de) |
BR (2) | BR112019002886B1 (de) |
DE (2) | DE102017109548A1 (de) |
WO (2) | WO2018033304A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3315979A1 (de) * | 1983-05-02 | 1984-11-08 | Hubert Dipl.-Ing. 4408 Dülmen Hergeth | Schaltung fuer ballenfraesen zur erzielung einer gleichmaessigen aufloesung |
WO2009062325A1 (de) * | 2007-11-15 | 2009-05-22 | Maschinenfabrik Rieter Ag | Ballenabtragmaschine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1381543A (fr) * | 1963-10-31 | 1964-12-14 | Alsacienne Constr Meca | Perfectionnement aux machines à gratter les balles de fibres textiles |
US4363585A (en) * | 1979-09-25 | 1982-12-14 | Automatic Material Handling, Inc. | Bale level control system for mechanical hopper feeder |
IT1140136B (it) * | 1981-12-11 | 1986-09-24 | Marzoli & C Spa | Dispositivo di comando di una macchina asportetrice di fiocchi di fibre da una serie di balle di fibre tessili |
DE3568596D1 (en) * | 1985-02-07 | 1989-04-13 | Rieter Ag Maschf | Method and control for a machine to strip off fibre flocks from textile fibre bales |
DE4422574A1 (de) * | 1993-09-24 | 1995-03-30 | Truetzschler Gmbh & Co Kg | Verfahren und Vorrichtung zum Abtragen von Faserflocken von Textilfaserballen, z. B. Baumwolle, Chemiefasern o. dgl. |
IT1396418B1 (it) * | 2009-11-16 | 2012-11-23 | Marzoli Spa | Dispositivo e metodo per il prelievo automatico di fibra da balle di fibra in una linea di filatura. |
CH706899A1 (de) * | 2012-08-29 | 2014-03-14 | Rieter Ag Maschf | Abtragorgan zum Abtragen von Faserflocken von Faserballen. |
CH710257A1 (de) * | 2014-10-16 | 2016-04-29 | Rieter Ag Maschf | Ballenöffner. |
CH710258A1 (de) * | 2014-10-16 | 2016-04-29 | Rieter Ag Maschf | Ballenöffner. |
CN105755583A (zh) * | 2016-04-18 | 2016-07-13 | 温州市瓯海三垟福其服装辅料厂 | 一种纤维开包送料机 |
-
2017
- 2017-05-04 DE DE102017109548.9A patent/DE102017109548A1/de not_active Withdrawn
- 2017-05-04 DE DE102017109520.9A patent/DE102017109520A1/de not_active Withdrawn
- 2017-07-11 CN CN201780050116.8A patent/CN109563650B/zh active Active
- 2017-07-11 EP EP17737585.4A patent/EP3497269B1/de active Active
- 2017-07-11 BR BR112019002886-2A patent/BR112019002886B1/pt active IP Right Grant
- 2017-07-11 WO PCT/EP2017/067376 patent/WO2018033304A1/de unknown
- 2017-07-14 BR BR112019002882A patent/BR112019002882A8/pt active Search and Examination
- 2017-07-14 EP EP17739586.0A patent/EP3497270A1/de not_active Withdrawn
- 2017-07-14 CN CN201780050409.6A patent/CN109642351B/zh not_active Expired - Fee Related
- 2017-07-14 WO PCT/EP2017/067880 patent/WO2018033311A1/de unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3315979A1 (de) * | 1983-05-02 | 1984-11-08 | Hubert Dipl.-Ing. 4408 Dülmen Hergeth | Schaltung fuer ballenfraesen zur erzielung einer gleichmaessigen aufloesung |
WO2009062325A1 (de) * | 2007-11-15 | 2009-05-22 | Maschinenfabrik Rieter Ag | Ballenabtragmaschine |
Also Published As
Publication number | Publication date |
---|---|
BR112019002886A2 (pt) | 2019-05-21 |
BR112019002886A8 (pt) | 2022-07-05 |
EP3497269B1 (de) | 2023-08-30 |
BR112019002886B1 (pt) | 2023-03-28 |
DE102017109548A1 (de) | 2018-02-15 |
CN109563650A (zh) | 2019-04-02 |
BR112019002882A8 (pt) | 2022-07-05 |
CN109642351A (zh) | 2019-04-16 |
WO2018033311A1 (de) | 2018-02-22 |
CN109642351B (zh) | 2022-02-01 |
EP3497269A1 (de) | 2019-06-19 |
CN109563650B (zh) | 2022-06-24 |
DE102017109520A1 (de) | 2018-02-15 |
BR112019002882A2 (pt) | 2019-05-21 |
EP3497270A1 (de) | 2019-06-19 |
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