JP2018027858A - Method for operating composite system composed of at least one ring spinning frame and at least one winder, and winder for composite system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for operating a composite system composed of at least one ring spinning frame and at least one winder.SOLUTION: When a work unit 4 of a winder 3 is stopped by operation state "stop", an unnecessary consumption device of the winder is cut off, a doffing cup of at least one ring spinning frame 2 is processed in the winder and the next doffing cup of at least one ring spinning frame is not already provided, the winder is operated at the operation state "stop", at this time, selection between at least one first operation mode and second operation mode is performed, at the second operation mode, a winding speed and a duration time at the operation state "stop" are higher and longer than those in the first operation mode, and at the first operation mode, the winding speed and the duration time at the operation state "stop" are lower and shorter than those in the second operation mode.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for operating a complex system comprising at least one ring spinning machine and at least one winder, as well as to a corresponding winder for the complex system.

  In a ring spinning machine, a cup is produced with a relatively small yarn volume. These cups are rewound into a large volume twill package in a winder. The ring spinning machine and winder can be operated in a complex system. That is, the ring spinning machine and the winder are connected to each other via an automatic conveyance system. This transport system transports a cup from a ring spinning machine to a winder and transports an empty cup winding tube from the winder to the ring spinning machine. In order to avoid downtime, the throughput of the winder and ring spinning machine operating in a composite are harmonized with each other. At this time, such a harmony is usually done so that a ring spinning machine with a much larger number of work units, which is significantly slower in its work process, does not have to wait for the winder. Normally, the throughput of the winder is selected to be somewhat larger than the throughput of the connected ring spinning machine. As a result, the normal winder has already rewinded the supplied cup before the ring spinning machine newly performs the doffing and thus provides a new cup. At this time, “doffing” means that the produced cups are removed together from the working unit of the ring spinning machine. This is also called “doffee”.

  In the case of the combined system described in EP 1006069 (EP 1 006 069 B1), the cup supply to the winder is continuously monitored by sensors. When there is no cup supply, the control device for the winding tube monitor, on the one hand, stores the transport tray equipped with an empty winding tube in the transport system of the winder, and on the other hand, via the central control unit. The take-off machine is controlled to start lowering the drive to a specified energy-saving operation state. Further, when the supply of the cup is resumed, it is guaranteed that the winder is controlled to increase the drive from the energy saving operation state to the normal operation state.

  An object of the present invention is to optimize the operation of a winder that forms a composite with a ring spinning machine.

  This problem is solved by a method for operating a complex system consisting of at least one ring spinning machine and at least one winder. The cup is manufactured in a ring spinning machine, and the cup is processed in the work unit of the winder and rewound into a twill package. The winder performs winding at a predetermined winding speed in the operating state “winding”. The work unit of the winder is stopped in the operation state “stopped”, and unnecessary consumers of the winder are shut off. The winder is operated in the operating state “winding” in order to process each cup of the doffing of at least one ring spinning machine in the winder. When each cup of the doffer of at least one ring spinning machine has been processed in the winder and the next doffing cup of at least one ring spinning machine is not yet provided, the winder is in operation. Drive at “stop”. A selection is made between at least one first operating mode and a second operating mode. In order to achieve less energy consumption in the second operation mode than in the first operation mode, the winding speed and the duration in the operation state “stop” are respectively set in the first operation in the second operation mode. Higher and longer than in mode. In order to achieve higher quality in the first operation mode of the manufactured winding package than in the second operation mode, the winding speed and the duration in the operation state “stop” are set in the first operation mode. , Lower and shorter than in the second operation mode, respectively.

  According to the present invention, when the winding is performed at the maximum feasible winding speed, and the long duration corresponding to this occurs in the operation state “stop”, the energy consumption of the winder is minimized. Based on recognition. Certainly, a relatively high winding speed results in a relatively high rotational speed and thus a relatively high power consumption of the winding drive, but on average the energy consumption of the winding drive is Varies with little dependence on speed. What is important for energy saving in the second operating mode is the consumer, the power consumption of this consumer is independent of the winding speed and this consumer can be shut off in the operating state “stop”. it can. Thus, every time the duration in the operating state “stop” is extended, energy savings are brought about. The greater the power consumption of these consumers, the greater the energy savings due to the extended duration in the operating state “stop”. One such consumer is in particular the negative pressure supply of the winder. Furthermore, it should be noted that in practice all unnecessary consumers are shut off in the operating state “stop”. This includes not only consumer devices that are directly required during winding, but also indirect consumer devices. In other words, the winder's consumer is normally fed from a DC voltage intermediate circuit. If all the consumers connected to the DC voltage intermediate circuit are cut off, the DC voltage intermediate circuit is also cut off, and thus the power loss of the DC voltage intermediate circuit can be reduced.

  A relatively high winding speed and a relatively long downtime certainly have the advantage of energy saving, but there are also undesirable aspects. The relatively high winding speed and the relatively long down time adversely affect the quality of the manufactured twill package. When the winding speed is relatively high, the friction acting on the yarn increases. Thereby, the lint of the yarn increases. If the quality of the yarn decreases, the quality of the twill package will deteriorate. In the operating state “stopped”, flying waste accumulates unimpeded on the stopped winding package. As a result, the quality of the winding package is further deteriorated.

  Therefore, an important aspect of the method according to the invention lies in the selection between the first operating mode and the second operating mode. In the first operating mode, a relatively high quality of the traverse package is achieved, and in the second operating mode, the energy consumption of the winder is reduced.

  According to a preferred embodiment of the method according to the invention, the winding speed is greater than the boundary winding speed, at which the doffing cup is processed only after the next doffing cup is provided. It will be done.

  As long as it does not fall below the boundary winding speed, the method according to the invention does not affect the productivity of the method according to the invention. In this case, the cycle time consisting of the operation state “winding” and the operation state “stop” is the same for the first operation mode and the second operation mode. If the winding speed is lower than the boundary winding speed, the quality may certainly improve further depending on the situation, but this reduces productivity. In this case, it is possible that the winder has not yet finished winding the doffing cup even if the next doffing cup is provided. In this case, the ring spinning machine must wait for the winder.

  Furthermore, this problem is solved by a complex system with a control device comprising at least one ring spinning machine and at least one winder. The ring spinning machine is configured to produce a cup and the work unit of the winder is configured to process the cup and to wrap the cup back into a traverse package. The winder can be operated at a predetermined winding speed in the operating state “winding”. The work unit of the winder is stopped in the operation state “stop”, and the unnecessary consumer of the winder is shut off in the operation state “stop”. The control device is configured to operate the winder in the operating state “winding” and to process at least one ring spinning machine doffing cup in the winder. When the spinning machine doffing cup has been processed in the winder and the next doffing cup of at least one ring spinning machine is not yet provided, let the winder run in the “stop” state of operation. It is configured. An operation device is provided, and at least one of the first operation mode and the second operation mode can be selected by the operation device. In order to achieve less energy consumption in the second operation mode than in the first operation mode, the winding speed and the duration in the operation state “stop” are respectively set in the first operation in the second operation mode. Higher and longer than when in mode. In order to achieve a higher quality of the manufactured winding package than in the second operation mode in the first operation mode, during the first operation mode, the winding speed and the duration in the operation state “stop” are , Lower and shorter than in the second operation mode, respectively. The control device is configured to operate the winder in the operation mode selected in the operation device.

  The present invention relates to a winder for the above-described complex system, in which the above-described control device and operation device belong to the winder.

  Therefore, the complex system according to the present invention or the winder according to the present invention has an operating device, which allows the operator to select between improving quality and reducing energy consumption.

  According to a further configuration of the invention, the operating device comprises means for increasing or decreasing the winding speed in steps, reducing energy consumption or improving the quality of the manufactured twill package.

  Such a configuration of the operating device makes it possible to easily adjust three or more operating modes. Thereby, various weightings of quality and energy consumption are possible in an advantageous way. For example, such a configuration may be configured as a slide adjuster.

  Hereinafter, the present invention will be described in detail based on the illustrated embodiment.

It is a figure showing a compound system roughly. It is a figure which shows concretely the influence of winding-up speed and stop time. It is a figure which shows the operation unit of the composite system by this invention.

  FIG. 1 shows a schematic view of a composite system 1 according to the invention, which comprises a ring spinning machine 2 and a winder 3.

  An actual system often includes a plurality of ring spinning machines 2 and a plurality of winders 3. The ring spinning machine produces cups. The work unit 4 of the winder 3 winds the cup into a large volume twill package. The ring spinning machine 2 and the winder 3 are connected to each other via a transport system 5. The transport system 5 transports a full cup from the ring spinning machine 2 to the winder 3, and transports an empty cup winding tube from the winder 3 to the ring spinning machine 2. The composite system 1 includes a control device 6 belonging to the winder 3. An operation unit 7 is connected to the control device 6 as an operation device. The operating device 7 enables parameter adjustment of the winder 3 and the transport system 5. In the illustrated embodiment, the operating device 7 includes a keyboard and a monitor. Furthermore, the monitor is configured as a touch screen for easier operation.

  If a full cup is present, the cup is wound into a traverse package in the work unit 4 of the winder 3. The work unit 4 is in the operating state “winding”. When the last doffing cup of the ring spinning machine is exhausted, the work unit 4 is stopped. In the operation state “stopped”, unnecessary consumers of the work unit 4 and the winder 3 are shut off. When the next doffing cup of the ring spinning machine 2 is provided, the work unit 4 returns to the operating state “winding”. The duration of the operation state “stop” (or “stop time” for short) has a great influence on the energy consumption of the winder 3.

  The diagram of FIG. 2 clearly shows the effect of downtime on energy consumption. On the horizontal axis 10, the stop time is recorded. The vertical axis 11 represents the average value of the energy consumption or the total power of the winder with respect to a complete doffing cup of the ring spinning machine 2. Curves 12, 13 and 14 show the energy consumption at different winding speeds, respectively. Curve 12 shows the energy consumption at a given winding speed that results in continuous operation of the winder 3. This winding speed corresponds to the boundary winding speed, at which the doffing cup is processed only after the next doffing cup is provided. At even lower speeds, productivity will be impaired. Thus, at a speed based on curve 12, the stop time is zero. An operating point 12A is obtained on the curve 12 at zero stop time. Curve 13 assumes a higher winding speed than curve 12. Therefore, a stop time occurs after winding the doffing cup. That is, the operating point 13A on the curve 13 is located further to the right in the diagram.

  As can be seen, a relatively long downtime results in a relatively low energy consumption. For curve 14, the winding speed further increases. The stop time further increases, the operating point 14A moves further to the right, and the energy consumption further decreases. In the case of the curve 15, the same winding speed as that of the curve 13 is assumed. Therefore, the stop time is still the same. Unlike curve 13, for curve 15, another consumer is shut off in the operating state “stop”. Specifically, the DC voltage intermediate circuit for supplying voltage to the consumer is cut off here. Thus, further energy is saved. The operating point 15A is accordingly located below the operating point 13A.

  FIG. 3 shows a preferred mode of the operation unit 7 for adjusting the operation mode. The mode of operation weights the quality of the manufactured traverse package and the energy consumption during the operation of the winder by adjusting the adaptation of the winding speed and the associated downtime of the work unit 4. When the energy consumption is reduced, the quality of the manufactured winding package is deteriorated. Conversely, when the quality is improved, the energy consumption is increased. The operation unit 7 has a slide adjuster 8 including a slider 9. The slide adjuster 8 is preferably projected on a touch screen. The slider 9 enables stepwise adjustment of the operation mode. Various positions 9 'and 9 "of the slider 9 are shown.

  Moving the slider from position 9 to position 9 'reduces the winding speed and stop time and thus improves quality. Moving the slider from position 9 to position 9 ″ increases the winding speed and stop time. Energy consumption is reduced.

Claims (4)

In a method of operating a composite system (1) comprising at least one ring spinning machine (2) and at least one winder (3),
Producing a cup in the ring spinning machine (2), processing the cup in the work unit (4) of the winder (3) and winding it back into a traverse package;
The winder (3) performs winding at a predetermined winding speed in the operating state “winding”,
The work unit (4) of the winder (3) is stopped in the operating state "stopped" and unnecessary consumers of the winder (3) are shut off;
The winder (3) is operated in the operating state “winding” in order to process the doffing cup of the at least one ring spinning machine (2) in the winder (3),
The doffing cup of the at least one ring spinning machine (2) has been processed in the winder (3), and the next doffing cup of the at least one ring spinning machine (2) is still When not provided, the winder (3) is operated in the operation state “stop”,
At this time, a selection is made between at least one first operation mode and second operation mode,
In order to achieve less energy consumption during the second operation mode than during the first operation mode, during the second operation mode, the winding speed and the duration time during the operation state “stop” Respectively higher and longer than in the first operating mode,
In order to achieve a higher quality of the manufactured winding package than in the second operation mode in the first operation mode, the winding speed and the operation state “stop” in the first operation mode. Operating a combined system (1) comprising at least one ring spinning machine (2) and at least one winder (3), each of which is lower and shorter than in the second operating mode Method.   The method of claim 1, wherein the winding speed is greater than a boundary winding speed, at which the doffing cup is processed only after the next doffing cup is provided. . In a winder (3) for a composite system comprising at least one ring spinning machine (2) configured to produce a cup,
The winder (3) includes a control device, and the plurality of work units (4) of the winder (3) process the cup and place the cup into a twill package. Configured to rewind,
The winder (3) can be operated at a predetermined winding speed in the operating state “winding”,
Stop the working unit (4) of the winder (3) in the operating state “stop”, shut off unnecessary consumer of the winder,
In order to process the doffing cup of the at least one ring spinning machine (2) in the winder (3), the control device (6) moves the winder (3) to the operating state “winding”. And the doffing cup of the at least one ring spinning machine (2) has been processed in the winder (3), the at least one ring spinning machine When the next doffing cup of (2) is not yet provided, the winder (3) is configured to operate in the “stop” operating state,
An operating device (7) is provided, and at least one first operation mode and second operation mode can be selected by the operation device (7),
In order to achieve less energy consumption during the second operation mode than during the first operation mode, during the second operation mode, the winding speed and the duration time during the operation state “stop” Respectively higher and longer than in the first operating mode,
In order to achieve a higher quality of the manufactured winding package than in the second operation mode in the first operation mode, the winding speed and the operation state “stop” in the first operation mode. ”In each case is lower and shorter than in the second operation mode,
The said control apparatus (6) is a winding machine (3) for complex systems comprised so that the said winding machine may be drive | operated by the operation mode selected in the said operating device (7).   The operating device (7) comprises means (8) for increasing or decreasing the winding speed stepwise to reduce energy consumption or to improve the quality of the manufactured twill package. The winder according to 3.

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