EP1466043A1 - Device and method for controlling and/or monitoring a yarn processing system - Google Patents
Device and method for controlling and/or monitoring a yarn processing systemInfo
- Publication number
- EP1466043A1 EP1466043A1 EP03702421A EP03702421A EP1466043A1 EP 1466043 A1 EP1466043 A1 EP 1466043A1 EP 03702421 A EP03702421 A EP 03702421A EP 03702421 A EP03702421 A EP 03702421A EP 1466043 A1 EP1466043 A1 EP 1466043A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- event
- thread
- signal
- time
- delivery 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
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
Definitions
- the invention relates to a device of the type specified in the preamble of claim 1 and claim 15 and to a method according to the preamble of claim 12.
- a communication network in the form of a serial communication fieldbus system with one or more fieldbuses for the transmission of signals clad in messages connects the main control of the textile machine and at least the delivery device control devices.
- the network can be designed with so-called T-connectors or in the manner of a "daisy chain".
- priority e.g.
- time-critical and / or time-specific events and in addition fewer time-critical and / or less time-specific events, e.g. in the fieldbus system communicates with messages privileged by special message types in order to execute and / or confirm the priority events without delay.
- the immense flood of data in a complex thread processing system can lead to events with the fieldbus system not being carried out and / or confirmed on time.
- time-critical signals would be, for example, the trig signals from the weaving machine to the thread stop accessory of each thread measuring delivery device, or the so-called thread winding pulses to be transmitted to the weaving machine from a thread sensor pulling device monitoring device -Liefer réelles.
- time-critical messages or signals would be the trigger signals for controlling the respective, controlled thread tensioning accessories on the output sides of the thread delivery devices.
- the event signals are transmitted in real time via the at least one independent event line.
- the event signals can be simple, fast and short signal pulses. The risk of a mutual collision of event signals or the delay of an event signal is thus largely excluded.
- the event management only has to transmit the event signals on time and as quickly as possible from at least one sender to at least one recipient.
- the Event-specific characteristics are transferred in the fieldbus system to at least one affected participant of the communication system in order to define the event signal, which is anonymous per se, for the affected participant (s) to evaluate. The definition is done on the software side. Since the event signal and its event-specific characteristics are transmitted in separate ways and are only combined with the participants concerned to form a meaningful signal, command or confirmation, the thread processing system can be optimally controlled and / or monitored.
- the field bus system communicates essentially on a continuous time basis, during the event signals are transmitted in a timely and individual means of communicating on the field bus system messages is so to speak the function of the event line while.
- the operation of the textile machine is continuously reconfigured or changed, although only one event line is essentially provided, it fulfills the tasks of many signal lines that are otherwise required for each individual type of event.
- one or more specific event lines are provided as a function of a bidirectional digital signal transmission between the textile machine and at least the thread delivery devices, the transmitted event signals being messages with time-critical or time-specific character, so-called event-synchronous signals.
- event-synchronous signals can be, for example, trigger signals for initiating or executing certain and predetermined functions in the thread delivery devices and their accessories, or of accessories in each case of the textile machine.
- event-synchronous signals can also be feedback signals, for example for confirming initiated and carried out events or displaying the status of specific conditions, functions or components in the thread processing system, and the like.
- the actual function of the at least one event-synchronous line can be defined or configured in terms of time, expediently on a continuous line Time basis. This is done with information of a serial type. The information is sent in the at least one serial fieldbus, which links the textile machine, the thread delivery devices and, if applicable, the provided accessories.
- the actual function of the event-synchronous line is to be understood as its intended function at a specific point in time or during a specific period of time.
- next event signal can consist of information about the actual type of the next event, which is assigned to the event signal that is sent in the at least one event line, and from address information about the next event signal, ie to or from which node or to or from which The next event signal must go or must come at the node of the thread delivery devices / accessories.
- the fieldbus system is used to assign a certain function to the at least one event line, the fieldbus system being able to continuously change or refresh this function assignment in an easily controllable manner via the at least one fieldbus.
- the event management is constantly prepared to precisely transmit any time-critical and / or time-specific event signal that arises at the moment when it is needed. This enables a completely time-reliable control of the thread processing system to be achieved.
- the at least one event line in the thread processing system is a bidirectional, direct digital line, which has the purpose of transmitting event-indicating pulses.
- these event-indicating pulses can be defined by serial information communication via the fieldbus system.
- the bidirectionality means that every node within the system can use the event line to both send and receive (and read) event signals.
- the function of the event line which, as mentioned, varies over time, is defined or configured using or via the serial communication fieldbus system, which has, for example, a CAN bus that operates with a CAN protocol.
- the fieldbus of the fieldbus system contains serial type information about the type of the next event, which is shown in the form of the next event signal on the event line, and also information for which specific node or which node this special event signal is intended for, or from which or from which node it will come.
- the fieldbus can also display a number of such events, taking that number into account by one or more of the nodes, or the fieldbus can define a number of events that will occur during a subsequent certain period of time, or until a new function definition takes place then the previous function definition is deleted or replaced.
- the structure of the communication system according to the invention enables the function of the event line to be configured and changed during the operation of the textile machine.
- a possible delay time for taking into account the event signal or for carrying out the event after the transmission of the event signal can also be defined and calculated in advance when the function is defined.
- connection structure of the at least one event line is either a so-called point-to-point structure or a multi-drop structure.
- a point-to-point structure means that e.g. only one event line leads to each thread delivery device for several events, in which at least one separate event signal driver is provided.
- the multi-drop structure only a single event signal driver is needed, because only a single event line is provided, to which all thread delivery devices and other participants are connected.
- the weaving machine sends a message via the fieldbus, for example a CAN bus, which assigns the event line the function for a trig signal. This means, that the next event signal transmitted in the event line must be a trigger signal for a specific event.
- the fieldbus for example a CAN bus
- the next CAN message sent defines a specific thread delivery device in the thread processing system to instruct the magnet provided in the thread stop accessory of this thread delivery device to raise the thread stop pin after a number of x-milliseconds, which are counted from the transmission of the next event signal in the event management.
- This event signal is then the trig signal according to FIG. 1.
- the event (the lifting of the thread stop pin) is carried out when the number x of milliseconds has counted or the corresponding time has elapsed.
- the next CAN message assigns the same event line the function for the number of drawn turns of thread winding pulses for a specific thread delivery device.
- the thread delivery device uses the event line to send these thread winding pulses which, thanks to the previous definition, are monitored and taken into account by the main control of the weaving machine.
- the next CAN message defines the lowering or closing of the thread stop pin after a number y of milliseconds for the thread delivery device concerned, which is counted from the occurrence of the next event signal in the event line (this event signal will be the trig signal according to 5 ).
- the delivery device control in the thread delivery device concerned reads the event signal or trig signal occurring in the event line, so that the thread take-off is terminated in accordance with the conditions defined in 6., that is, as soon as the number of y- milliseconds has passed. A cycle of weft insertion (one weft) has now taken place in a correct, time-safe manner.
- the invention is to provide only at least one event line for different events in order to transmit the event signals in the simplest form and as quickly as possible, and to define the event line or the respective event signal on the software side in advance in order to use it for the to make the respective participants usable.
- the event signals of different events can be transmitted on the same event line by means of a preliminary definition of the expected event signal which varies during operation of the thread processing system, since the participants in the communication system specifically identify them through the predefinition.
- the fieldbus system is ideally suited for identification and has enough time for this because it is relieved of the task of transmitting the event signals on time.
- a separate point-to-point event line is expediently provided between the textile machine and at least each thread delivery device for different events, preferably with one event signal driver per event line.
- the event signals are transmitted on each of these event lines, which are only assigned to the different events through the definition via the fieldbus system.
- a single, common multi-drop event line is provided between the textile machine and at least the thread delivery devices, preferably with a common event signal driver.
- At least one accessory device is assigned to at least one thread delivery device that can be controlled and / or monitored by the delivery device controller, the accessory device can then be connected directly to the event line, or indirectly via the delivery device controller.
- At least one accessory device is assigned to at least one thread delivery device, which has electronic accessory device control and / or monitoring, then the accessory device can be connected directly to the event line, or indirectly via the delivery device control.
- the accessories can be connected directly or indirectly to the fieldbus system.
- the accessory device can likewise either be connected directly to the event line, or indirectly via the main controller.
- the event signal is at least one signal pulse.
- the event signals for different events can be the same as each other, since they only get their respective meaning from the definition via the fieldbus system.
- the communication participants are expediently connected to nodes of the fieldbus system provided with addresses, or alternatively provided with their own addresses in the fieldbus system. This makes it easier for the communication participants to define each event signal in advance.
- the characteristic of the event signal with which the event signal is defined in advance can be expediently provided in every transmission direction in the event line and in every communication direction in the fieldbus system.
- a trig signal for activating and deactivating a thread delivery device-thread stretching accessory device at the output of the thread delivery device
- a trig signal for activating, deactivating or setting a controllable thread brake accessory device in the thread path
- the respective event signal can be defined such that it can be used by at least one affected communication participant, even if it is transmitted on the same event line.
- the communication participant concerned is informed, for example, of what event is meant by the next event signal.
- the communication subscriber is informed of an expected point in time or a period of time or a time window, and possibly at least one sender address for event signals.
- Fig. 1 is a highly schematic representation of a thread processing system
- Fig. 2 is a detailed schematic representation of a thread processing system.
- Thread processing systems each with a weaving machine as a textile machine and weft thread delivery devices as delivery devices, are described below.
- the invention can also be used for other thread processing systems such as Knitting machine with knitting thread delivery devices.
- a thread processing system S in FIG. 1 comprises a textile machine M with an electronic main control MCU and a plurality of thread delivery devices F1, F2, F3 to Fn. Furthermore, a field bus system FBS is provided, which comprises at least one field bus FB, which comprises the main control MCU and the thread delivery devices F1 to Fn connects, the latter expediently via their yarn feeder controls FC. At least one fieldbus driver FBD is provided in the fieldbus system FBS for bidirectional serial data transmission. Outside the fieldbus system FBS, an event line EL is provided, to which all the thread delivery devices F1 to Fn are connected, and the main control MCU either directly or via the fieldbus FB. An event signal driver ELD is provided for the event line EL. As indicated by the arrows in the indicated blocks, the event line EL is used for signal transmission in each transmission direction.
- the method for controlling and / or monitoring the thread processing system S in FIG. 1 is explained on the assumption that the textile machine M is an air jet loom, the associated thread delivery devices F1 to Fn of which are so-called weft measurement delivery devices, each with a delivery device thread stop accessory device , Furthermore, a further accessory device, a so-called turn count sensor (not shown), is provided for each thread delivery device, which counts each thread turn taken off during an entry and generates at least one signal.
- a magnet is provided in the thread stop accessory with which a thread stop pin (not shown) can be lifted out of the thread path. The stop pin can be returned from the raised position to the lowered position by spring loading or the magnet.
- the thread take-off is interrupted in the lowered position of the thread stop pin. In the raised position of the thread stop pin, the thread windings can be pulled off one after the other by the air jet weaving machine.
- An entry in the thread channel occupied by the thread delivery device F3 is controlled and monitored as follows:
- the air jet loom sends a message via the fieldbus FB (e.g. a CAN bus), which assigns the function for a trig signal to the event line EL.
- FB e.g. a CAN bus
- the next event signal will be a trig signal for a specific event, namely the lifting of the thread stop pin in the thread delivery device F3.
- next moment defines the next one, e.g. CAN message that is sent, the thread delivery device F3 in the thread processing system.
- the message orders that the magnet must raise the thread stop pin x milliseconds after the next event signal occurs in the event line. This event signal will therefore be the trig signal according to 1.
- the event line EL assigns the next, for example CAN message, EL counting pulses from the thread delivery device F3.
- the accessory device for counting turns generates thread winding pulses, which the thread delivery device F3 transmits on the event line EL.
- the thread winding pulses are monitored and registered by the main control MCU of the air jet loom.
- the following, e.g. CAN message defines for the thread delivery device F3, whose accessory device has to lower or close the thread stop pin as an event y milliseconds after the occurrence of the next event signal in the event line.
- This event signal will be the trig signal according to 5.
- the delivery device control FC in the thread delivery device F3 reads the incoming event signal in the event line EL as a trig signal.
- the thread take-off is terminated in accordance with the condition defined in 6, i.e. as soon as y milliseconds have passed after the event signal occurred. A cycle of weft insertion (one weft) has thus taken place in a correct, timely manner.
- an air jet weaving machine is also indicated as textile machine M, to which at least two thread delivery devices F1, Fn with separate thread channels are assigned.
- the air jet weaving machine has a shed 1, an entry and thread selector device 2, and a main shaft 3, the rotation angle ranges or rotation angles of which are monitored by the main control MCU.
- an accessory device A in the form of an arrival sensor is provided at the end of the shed, opposite the thread delivery devices, which acknowledges the arrival of the free weft end, for example, with a good signal and / or generates an error signal if the free end does not arrive at a predetermined point in time or in a time window.
- Each yarn delivery device F1, Fn is a so-called weft measurement device, which measures the weft length for each entry.
- a housing 4 supports a storage drum 5.
- an accessory device E in the form of a thread break detector or motion detector is provided on the inlet side and is connected to the delivery device controller FC.
- a thread stop accessory D is provided and connected to the delivery device control FC.
- an accessory device B in the form of a thread turn counting sensor can also be provided and aligned with the storage drum 5, which generates at least one counting signal for each winding that is drawn off and transmits it to the delivery device control unit FC.
- the accessory device D has at least one magnet with which a thread stop pin can be raised from a lowered stop position (stopping the thread against the take-off) into a release position (releasing the thread for take-off) and can be reset again.
- an accessory device G in the form of a thread stretcher can be provided, which is optionally connected to the delivery device control FC.
- an accessory device H in the form of a controlled thread brake with its own accessory device controller AC can be provided.
- a weft monitor can be arranged as an accessory device K in the thread path.
- Each thread delivery device F1 to Fn draws its thread from a supply spool 7 in a supply spool stand 6, in which accessories (not shown) for monitoring and / or controlling certain functions can also be provided.
- a serial communication system in the form of a fieldbus system FBS connects the main control MCU and the thread delivery devices F1, Fn via at least one fieldbus FB, the thread delivery device controls FC either being connected directly to the fieldbus FB (not shown) or via a so-called thread delivery device control box FCB.
- Stand 6, accessories H, K and, if applicable, A can also be connected to the fieldbus FB.
- nodes are provided which have predetermined addresses.
- Accessories assigned to at least one thread delivery device can be connected to its thread delivery device control FC.
- Accessories assigned to the textile machine can be connected to the main control MCU.
- the fieldbus system FBS has at least one common fieldbus driver FBD, with which the transmission of messages NES in the fieldbus system FBS is accomplished in both transmission directions.
- an event line EL is provided in a multi-drop structure, to which various communication participants of the FeBus system FBS are connected.
- the event line EL is used for the timely or real-time transmission of event signals ES, optionally in each transmission direction, the event signals ES being able to be relatively simple signal pulses.
- the delivery device controls FC are connected directly to the event line EL, and the accessories E, D, B, G are connected via the delivery device controls FC.
- the accessories H, K, A and also the main control MCU are directly connected to the event line EL.
- Accessories not shown at booth 6 can also be connected to the event line EL.
- individual point-to-point event lines to the relevant communication participants could be provided in the field bus system FBS, each of which is equipped with its own event signal driver ELD.
- An insertion cycle for a weft thread from the thread delivery device F1 is controlled and monitored in the manner explained above with reference to FIG. 1.
- the other accessories are controlled and / or monitored in an analogous manner.
- the main control MCU is informed of the movement of the weft thread through the shed 1 via the thread winding pulses.
- the time or a window for the arrival of the free weft end at accessory A is known.
- a corresponding message NES in the fieldbus system FBS defines, for example after the arrival of the first thread winding pulse, that an event signal transmitted at the predetermined point in time or within the predetermined time window will be a fault signal from the accessory device A and has the consequence that the weaving machine must be switched off. If the event signal is transmitted at the predetermined point in time or within the time window, the main control MCU switches off the weaving machine.
- an event signal transmitted by a weft monitor can be recognized and registered as a thread break or fault-related thread standstill during an entry cycle, which results in at least the weaving machine being switched off.
- the signal of the weft monitor when the thread starts to move within a time window is defined as an expected event signal from the node address to the main control unit MCU via the fieldbus system, and the consequence of the arrival of the event signal is also defined. If the event signal arrives as a good signal, nothing is initiated. If the event signal fails to appear, a decision is made to break the thread and the machine is switched off. As a definition, it is also possible to query at least one event signal at a predetermined point in time or in a time window.
- the activation or deactivation or setting of the accessory device H takes place, for example, by communicating via the fieldbus system FBS that the next event signal is intended only for the node address of the accessory device H and is to be ignored by all other communication participants.
- the controlled thread brake is actuated as an accessory device by defining with the node address of the thread delivery device control of the working thread channel or the node address of the controlled thread brake in the fieldbus system, at what point in time the event signal for activation and at what point in time Event signal for deactivating the controlled thread brake will come, these times or time windows being assigned, for example, to the angle of rotation of the main shaft of the weaving machine by calculation or the like, and the event signals are also transmitted as a function thereof.
- the controlled thread brake is activated and deactivated in a similar way with event signals, the purpose and the times or time windows for the event signals being transmitted beforehand to the addresses concerned by messages in the fieldbus system.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0200096A SE0200096D0 (en) | 2002-01-14 | 2002-01-14 | Device for communication in and control of a yarn processing system |
SE0200096 | 2002-01-14 | ||
DE10228795 | 2002-06-27 | ||
DE10228795A DE10228795A1 (en) | 2002-01-14 | 2002-06-27 | Monitor/control of yarn feed processing actions, at a jet/shuttleless loom, has a field bus communication link between the yarn feeds and the main control, together with a data line for event signals |
PCT/EP2003/000189 WO2003057957A1 (en) | 2002-01-14 | 2003-01-10 | Device and method for controlling and/or monitoring a yarn processing system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1466043A1 true EP1466043A1 (en) | 2004-10-13 |
EP1466043B1 EP1466043B1 (en) | 2006-03-29 |
Family
ID=26011169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03702421A Expired - Lifetime EP1466043B1 (en) | 2002-01-14 | 2003-01-10 | Device and method for controlling and/or monitoring a yarn processing system |
Country Status (7)
Country | Link |
---|---|
US (1) | US6999837B2 (en) |
EP (1) | EP1466043B1 (en) |
JP (1) | JP2005514533A (en) |
CN (1) | CN1615382B (en) |
AU (1) | AU2003205593A1 (en) |
DE (1) | DE50302812D1 (en) |
WO (1) | WO2003057957A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20030893A1 (en) * | 2003-04-30 | 2004-11-01 | Riccardo Lonati | PERIPHERAL DEVICE NUMBERING PROCEDURE |
ITTO20030585A1 (en) * | 2003-07-29 | 2005-01-31 | Lgl Electronics Spa | THREE WAY CONNECTOR TO CONNECT PLOT FEEDERS |
DE102006012133A1 (en) * | 2006-03-16 | 2007-09-20 | Memminger-Iro Gmbh | Data transmission in a system of textile engineering units |
EP2415916B1 (en) * | 2010-08-04 | 2015-03-04 | L.G.L. Electronics S.p.A. | Method and apparatus for detecting accidental stops of the yarn on a knitting line |
BR102014006430A2 (en) * | 2014-03-18 | 2016-06-14 | Upl Do Brasil Indústria E Comércio De Insumos Agropecuários S A | biocatalyst and use of biocatalyst in sugarcane crops |
IT201600125999A1 (en) * | 2016-12-14 | 2018-06-14 | Lgl Electronics Spa | METHOD OF CHECKING THE YARN SELECTION FOR WEAVING SYSTEMS |
CN111850795B (en) * | 2020-06-11 | 2022-05-06 | 佛山市睿宝智能科技有限公司 | Needle selector control method, knitting machine, and storage medium |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6440640A (en) * | 1987-08-05 | 1989-02-10 | Ichikawa Woolen Textile | Control and monitor apparatus of loom |
SE8900534D0 (en) | 1989-02-16 | 1989-02-16 | Iro Ab | DEVICE TO CONTROL AND / OR MONITOR IN FIRST HAND IN OR AT THE TEXTILE MACHINE |
SE8900537D0 (en) * | 1989-02-16 | 1989-02-16 | Iro Ab | guide device |
IT1275465B (en) * | 1995-07-03 | 1997-08-07 | Tiziano Barea | CONTROL DEVICE FOR THE SUPPLY OF A MULTIPLE OF THREADS OR YARNS TO A TEXTILE MACHINE HAVING CODED SENSORS AND METHOD FOR ITS CONTROL |
SE9903936D0 (en) * | 1999-10-29 | 1999-10-29 | Regis Munoz | Yarn processing system |
-
2003
- 2003-01-10 WO PCT/EP2003/000189 patent/WO2003057957A1/en active IP Right Grant
- 2003-01-10 US US10/501,255 patent/US6999837B2/en not_active Expired - Fee Related
- 2003-01-10 CN CN038022192A patent/CN1615382B/en not_active Expired - Lifetime
- 2003-01-10 JP JP2003558246A patent/JP2005514533A/en active Pending
- 2003-01-10 DE DE50302812T patent/DE50302812D1/en not_active Expired - Fee Related
- 2003-01-10 EP EP03702421A patent/EP1466043B1/en not_active Expired - Lifetime
- 2003-01-10 AU AU2003205593A patent/AU2003205593A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO03057957A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2003057957B1 (en) | 2003-09-04 |
US20050204781A1 (en) | 2005-09-22 |
US6999837B2 (en) | 2006-02-14 |
AU2003205593A1 (en) | 2003-07-24 |
CN1615382A (en) | 2005-05-11 |
DE50302812D1 (en) | 2006-05-18 |
CN1615382B (en) | 2010-05-05 |
EP1466043B1 (en) | 2006-03-29 |
WO2003057957A1 (en) | 2003-07-17 |
JP2005514533A (en) | 2005-05-19 |
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