JP2014076904A - Method of preparing spinning bobbin manufactured in ring spinning frame for subsequent rewind process - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the supply of a prepared spinning bobbin to an operation part of an automatic twill winder.SOLUTION: According to a method of preparing a spinning bobbin manufactured in a ring spinning frame for a rewind process in an operation part of an automatic twill winder, the yarn end is dissociated from the spinning bobbin in a bobbin preparing device, received and located in a preparation position, and subsequently the yarn end is newly received in an area of the operation part of the automatic twill winder, and the rewind process for the spinning bobbin is started. Using a machine control device 28 of the automatic twill winder 2, the supply of the spinning bobbin 16 to the automatic twill winder is monitored, and when the supply falls below a preset limit value, in order to improve the supply to the automatic twill winder 2, the cycle output of the preparation process of a bobbin preparation device 10 is increased.

Description

  The present invention provides a ring spinning machine for the subsequent rewinding process in the working part of an automatic traverse winder equipped with an automatic spinning cup / empty tube conveying system. In which the yarn end is dissociated from the spinning cup, received and positioned at the preparation position, and then the yarn end is automatically wound by the winder. The present invention relates to a method of newly accepting in the area of the working section and starting the rewinding process of the spinning cup.

  Spinning cups with relatively little yarn material produced in such textile machines, as previously known in the context of ring spinning machines and described in detail in many patent applications. Must first be rewound into a twill package before being further processed in subsequent textile machines, such as looms, in the manufacturing process. Rewinding such a relatively small spinning cup into a relatively large volume winding package is usually performed in the working section of an automatic winding winder.

  However, spinning cups produced in ring spinning machines often have so-called backwinding (Hinterwindung) based on the working type of such textile machines, so such spinning cups are in the working part of automatic winding winders. Before it can be reached, it must be processed in a special cup preparation device. That is, in a ring spinning machine, it is common to move a ring bank (Ringbank) from its upper position to its lower position at the end of the cup forming process (Kopsreise), that is, at the end of spinning. So-called underwinding is necessary, and such underwinding is necessary so that the ring spinning machine can automatically start spinning again after the spinning cup doffing.

  During the descending movement of the ring table, several yarn windings, commonly referred to as backwinding, are brought to the surface of the spinning spinning cup.

  Backwinding, which is located relatively firmly on the cup surface, avoids the possibility of, for example, the formation of chopped yarn (Schleppfaden), so it has advantages during the operation of the spinning cup from the ring spinning machine to the subsequent automatic winding winder. Have.

  However, in the working part of the automatic winding machine, backwinding that adheres firmly to the cup surface in this way is inconvenient. This is because in this region, it is usually difficult to dissociate backwinding, and thus the yarn end of the spinning cup, by aerodynamic force. That is, a spinning cup having backwinding cannot be properly gripped by a yarn processing / guide mechanism installed in the working portion of an automatic traverse winder when appropriate processing is not performed in advance. .

  For this reason, in the textile industry, the spinning cup is first passed through the cup preparation device of the automatic spinning cup / air-pipe transport system on the way from the ring spinning machine to the working part of the automatic winding machine. To do. In this cup preparation device, the yarn end of each spinning cup is dissociated and prepared for the subsequent rewinding process.

  Such cup preparation devices have been known for a long time in the textile industry in a wide variety of embodiments, and some have been described in great detail in numerous documents.

  For example, in known cup preparation devices described in DE 199 170 33B4 or DE 102006050219A1, work is carried out, for example, using a special search blade (Suchermesser) in order to dissociate the backwinding yarn. In each case, the search blade is positioned in the region of the surface of the spinning cup where the work is performed, and the spinning cup is rotated in the feeding direction for a presettable time or a preset number of revolutions.

  The yarn end is thereby dissociated from the surface of the spinning cup and then positioned at the yarn preparation position in the spinning cup so that the yarn end is easily handled for the yarn handling and guiding mechanism of the working part of the automatic winding machine. It becomes possible. That is, the yarn end of the spinning cup is positioned so as to be easily dissociable in the region of the spinning tube winding tube, or the yarn end of the spinning cup is loosely arranged inside the hollow winding tube of the spinning cup. The

  Known cup preparation devices have proven themselves effective in practice, however, have the following disadvantages. In other words, this known cup preparation device is completely independent of the supply demand of the subsequent automatic winding winder, in particular independent of the respective cup demand of the working part of the automatic winding winder and provided spinning. Work regardless of the state of the cup. In other words, with such known cup preparation devices, the spinning cups to be prepared often result in a supply neck in the automatic winding winder to which they belong, especially in the working area of the automatic winding winder. And yet, even though the yarn end forming the backwinding has already been disengaged from the spinning cup, it is further rotated for a long time until the adjusted processing time has elapsed.

DE19917033B4 DE102006050219A1

  Therefore, an object of the present invention is to provide a method capable of improving the supply of a prepared spinning cup to the working section of an automatic traverse winder starting from the above-described prior art.

  This object is achieved according to the invention by a method having the features set forth in claim 1.

  That is, in the method of the present invention, in the method described at the beginning, the supply of the spinning cup to the automatic traverse winder is monitored using a machine control device of the automatic traverse winder, and the supply is set to a limit value that can be preset. In order to improve the supply to the automatic winding machine, the cycle output of the preparation process of the cup preparation device is increased.

  Preferred embodiments of the invention are described in the dependent claims.

  Using the machine control device of the automatic winding machine, the supply of the spinning cup to the automatic winding machine is monitored, and if the supply falls below a preset limit value, the supply to the automatic winding machine is In order to improve, the method according to the invention, in which the cycle output of the preparation process of the cup preparation device is increased, in particular automatically prevents the occurrence of large supply bottlenecks in the relevant automatic winding winder. Has the advantage. That is, if necessary, the machine controller of the automatic winding machine sets the adjusted preparation time for each spinning cup in the cup preparation device, and supplies the spinning cup to the automatic winding machine accordingly. Is improved. Even if the preparation rate (Vorbereitungsrate), that is, the number of cups prepared in the preparation device decreases compared to the total number of spinning cups that advance from the preparation device, the cycle power is sufficiently increased, so The absolute number of spinning cups supplied is temporarily increased, thereby preventing a decrease in productivity due to a decrease in supply to the working unit.

  In a preferred aspect of the present invention, for example, as described in claim 2, the working degree of the automatic winding winder is monitored for each filling degree by the spinning cup, and a preset limit value of the filling degree is set. If it falls below, increase the cycle output of the preparation process of the cup preparation device.

  According to another preferred embodiment, in order to detect the respective filling degree of the working part of the automatic winding winder, a prepared spinning cup located at the standby position in the region of the working part is used. Monitor by sensor.

  By monitoring the spinning cup positioned at the standby position in this way using the sensor, it can be easily ensured that the cup preparation device is always operated with the optimum cycle output.

  Alternatively, in the embodiment described in claim 4, the monitoring of the filling degree of the automatic winding winder by the spinning cup is performed by the number of spinning cups supplied to the automatic winding winder and the returned empty pipe or the complete pipe. This is done by counting the number of winding tubes that have not been paid out. In this case, from the difference between the two values, it is often possible to generally infer the supply state of the spinning cups to the automatic winding winder. General detection of the supply state of the automatic traverse winder can be performed relatively easily without requiring a sensor in the (working section).

  This also ensures that the prepared spinning cup is always supplied to the working part of the automatic winding machine in the context of the appropriate adjustment of the cycle output of the cup preparation device. Can do.

  A third preferred method that can achieve a good supply to the working part of the automatic winding machine is described in claim 5.

  In this method, the supply to the automatic winding machine is ensured by monitoring the number of prepared spinning cups that advance from the cup preparation device per unit time. If necessary, i.e. if there are too few prepared spinning cups to advance from the cup preparation device per unit time, in order to supply enough spinning cups to all working parts of the automatic winding winder, Even in this case, the cycle output of the cup preparation device is increased.

  According to still another aspect of the present invention, the detection result of the yarn end in the cup preparation device is monitored using the sensor device, and there is no preset minimum preparation rate of the cup preparation device, that is, cannot be achieved. In this case, the increase in cycle output is suppressed.

  In this way, even in the case of troublesome spinning cups, i.e. spinning cups which often cause difficulties when receiving the yarn end, for example due to the thinness of the yarn material, By reducing the processing time for the spinning cup, attempts to increase the cycle output of the cup preparation device are reliably prevented. That is, if the cup preparation device does not have a presettable minimum preparation result, usually caused by a difficult spinning cup, the machine controller will immediately start automatic winding by increasing the cycle output of the cup preparation device. Prevent unanticipated attempts to improve the filling of the working part of the winder. Otherwise, the number of unprepared cups will increase, reducing machine efficiency.

  In the aspect of claim 7, for example, the cycle time of the cup preparation device is increased only if at least 75% of the cup preparation trials were successful during the last 5 minutes of the elapsed time of operation of the cup preparation device. I won't let you. In other words, the preparation time of the cup preparation device is reduced only if at least 75% of the cup preparation trials were successful as described above. That is, for example, the state of the last prepared spinning cup is inferred from the preparation result of the cup preparation device in the last 5 minutes, and thereby, the cycle output of the preparation process of the corresponding cup preparation device is suitable or Optimal adjustment is possible.

  In another preferred aspect of the present invention, the preparation time of the cup preparation device in the normal mode is about 4 seconds for each spinning cup, and after the cycle output to the so-called “quick mode” is increased, About 1.5 seconds per cup.

  The switch to “quick mode” takes place, as already mentioned, especially when at least 75% of the cup preparation attempts were successful during the last 5 minutes of the cup preparation run time. . That is, as soon as the machine control device of the automatic traverse winder confirms that the plurality of working parts of the automatic traverse winder are in an unsupplied (unterversorgen) state, By significantly reducing the processing time of the spinning cup, it is automatically checked whether it is possible to eliminate the supply shortage with little danger.

  In this way, it is not only relatively easy to ensure that a properly prepared spinning cup is fully supplied to all working parts of an automatic winding winder, but also the following are ensured: . In other words, in this case, when there is a problematic spinning cup, that is, when there is a spinning cup whose processing is often performed inconveniently even in the “normal” preparation time, the preparation time can be reduced as described above. It is definitely guaranteed that it will not start.

  As claimed in claim 9, the cup preparation device is switched to "quick mode" to increase the cycle output of the cup preparation device, one or more of the work processes of the cup preparation device are modified, Alternatively, one or the other work process is completely omitted. That is, for example, the number of rotations that the spinning cup performs during preparation is reduced and / or the use of a backwinding yarn dissociator is omitted.

  According to the tenth aspect, the degree of increase in the cycle output of the cup preparation device is determined in relation to the result of the cup preparation device when the yarn end of the spinning cup is detected. In other words, in the case of a good preparation result of the cup preparation device, which usually indicates a spinning cup with no problems, the cycle output of the cup preparation device can be raised clearly without difficulty, whereas the cup preparation device Less favorable preparation results often suggest a somewhat problematic spinning cup, in which case it is desirable to increase the cycle power more carefully.

  In another preferred aspect of claim 11, as soon as the supply of the normally prepared spinning cup to the automatic winding winder is stabilized, the cup preparation device is switched back from the “quick mode” to return to the normal mode. . With such a return to normal mode, the preparation process of the spinning cup is somewhat relaxed, i.e. the preparation time is again increased to the originally adjusted preparation time, which in general is the subsequent spinning cup. Has a favorable effect on the result of the preparation. That is, in normal mode, the number of spinning cups processed per unit time is certainly small compared to the number in quick mode, however, the number of error trials in spinning cup preparation is also smaller than in many cases. is there.

  The method according to the invention not only allows a quick and precise adjustment of the time of the required reaction, i.e. the time of the cycle rise of the cup preparation device, in a relatively simple manner as a whole, but can be a problem whenever necessary. It also makes it possible to optimally adjust the value of the cycle rise or cancel the cycle rise.

It is a figure which shows the connection part of a ring spinning machine and an automatic traverse winding winder, Comprising: The spinning cup preparation apparatus operated by the method by this invention is installed in the area | region of the spinning cup and empty pipe conveyance system of an automatic traverse winding winder. It is a figure which shows the connected part. FIG. 6 is a plan view showing another embodiment of a spinning cup / pipe transport system of an automatic traverse winder, in particular a sensor device arranged in the region of the lateral transport section, and in an advantageous embodiment an automatic traverse winding It is a top view which shows the sensor apparatus which monitors the filling degree of the working part of a winder.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment for a connection between a ring spinning machine 1 and an automatic traverse winder 2. The conveying systems of both textile machines are connected by a connection system 30 as is known per se and is therefore simply indicated by arrows. The transport system installed in the area of the ring spinning machine is not described in detail because the transport system is well known and is not the subject of the present invention.

  The spinning cup / empty tube conveying system 12 arranged in the area of the automatic winding winder 2 has different conveying sections as usual, in the illustrated embodiment, for example, a cup supply section 3 and a winding pipe return section 4. The storage section 5 can be driven in a reversible manner, and the lateral conveyance section 6 communicates with the working unit 11. According to a preferred embodiment, as will be described in detail later with reference to FIG. 2, a plurality of sensor devices 26 for monitoring the standby position in the horizontal conveyance section 6 are provided in the area of the horizontal conveyance section 6. . These sensor devices 26 are connected to the machine control device 28 of the automatic traverse winder 2 via the signal line 14.

  A so-called preparation section 7 is further connected to the cup supply section 3, and this preparation section 7 is connected to the storage section 5 via the branch sections 8 and 9 on the end side, or again to the cup supply section. 3 is connected. In the area of the preparation section 7, a preparation device 10 for the spinning cup 16 is arranged. In this preparatory device 10 which can have various embodiments as already mentioned, the spinning cup 16 produced in the ring spinning machine 1 is the spinning cup 16 and then in the working part 11 of the automatic winding winder 2. It is prepared so that it can be processed, i.e. can be rewound. The preparation device 10 which is known per se and is therefore only schematically shown is likewise connected via a signal / control line 13 to a machine control device 28 of the automatic winding winder 2.

  FIG. 2 shows a plan view of an embodiment of the spinning cup / empty tube conveying system 12 installed in the area of the automatic traverse winder 2, and in this case also in FIG. The illustration of the original automatic winding winder 2 is omitted.

  The illustrated spinning cup / pipe transport system 12 of the automatic traverse winder 2 shows only a part of the entire spinning cup / pipe transport system 12 in this case, and has already been described in connection with FIG. In the same manner as the above, there are various different conveying sections, and through these conveying sections, a new spinning cup 16 is supplied to a large number of working sections 11 of the automatic winding winder 2 or these working sections. 11, the empty pipe from which the yarn has been fed out, that is, the fed-out empty pipe, is discharged. However, the spinning cup / airpipe conveyance system 12 shown in FIG. 2 does not have a storage section that can be driven reversibly.

  As can be seen from FIG. 2, the spinning cup / empty tube conveyance system 12 includes a spinning cup supply section 3, a winding tube return section 4, and a horizontal conveyance section 6 disposed between the sections 3 and 4. In the automatic traverse winder 2 having the spinning cup / pipe transport system 12, the preparation section 7 including the preparation device 10 is arranged in front of the illustrated region of the spinning cup / pipe transport system 12. And therefore not visible.

  As shown in FIG. 2, the spinning cup supply section 3 is not linear but extends in a waveform. In other words, the spinning cup supply section 3 is a large number of transport portions arranged at a slight inclination with respect to the machine longitudinal axis 20, each extending toward one inlet opening area of the lateral transport section 6. It consists of a conveying part that terminates and a subsequent conveying part that is displaced outwardly behind the inlet opening area. With such an arrangement, the transport tray 25 that has the spinning cup 16 and moves along the cup supply section 3 in the transport direction T can be used only when the free space, that is, the standby position exists in the lateral transport section 6. Each is automatically carried into the lateral conveyance section 6.

  The stand-by position at which the spinning cup 16 is prepared for the subsequent rewinding process is monitored by sensor devices 26, which are for example mechanically controlled of the automatic winding winder 2 via the signal line 14. It is connected to the device 28. In the illustrated embodiment, preferably, one sensor device 26 is installed at least in the region of the third standby position behind the lateral conveyance section 6.

  During the winding operation, inside the spinning cup / empty tube conveying system 12, in the conveying direction T, the spinning cup 16 or a number of conveying trays 25 provided with the fed empty tubes circulate.

In this case, the transport tray 25 is transported inside the spinning cup / empty tube transport system 12 except for the central region 15 of the lateral transport section 6 via a circulating endless conveyor belt, preferably a flat belt. For example, two conveyor belts 22 and 23 that circulate in the machine longitudinal direction are provided in the entrance opening region of the lateral conveyance section 6, and the upper part (Oberturm) of these conveyor belts 22 and 23 is indicated by an arrow F _22. , F ₂₃ to circulate in the clockwise direction. On the other hand, another conveyor belt 24 is arranged in the exit opening area of the lateral conveying section 6, and the upper part of the conveyor belt 24 circulates in the counterclockwise direction (arrow F ₂₄ ). The conveyor belts 22 to 24 serve to convey the conveyor cup 25 by friction in the spinning cup supply section 3 and the winding tube return section 4 and the inlet opening area and the outlet opening area of the lateral conveying section 6.

  In the central region 15 of the lateral transport section 6, the transport tray 25 is transported by a transport plate 18 that is fixed and controllable, and the transport plate 18 is shifted by 120 ° by three transport pockets 19 arranged. Have Preferably, the transport plate 18 whose timing can be controlled via the step motor not only positions the transport tray 25 at its feeding position, but also moves the transport tray 25 from which the winding tube has been fed to the exit opening area of the lateral transport section 6. The conveyor tray 25 reaches the conveyor belt 24 in the outlet opening region, and the conveyor belt 24 rings the transport tray 25 with the fed empty pipe through the winding tube return section 4. Return to the spinning machine 1 and convey.

  According to the present invention, during the winding operation, the supply of the prepared spinning cup to the automatic traverse winder 2 is monitored, for example, by monitoring the filling degree (Fuellgrad) of the working unit 11 of the automatic traverse winder 2. In addition, the success rate (Erfolgsquote) of the preparation device 10 at the time of preparation of the spinning cup 16, that is, the rate at which the yarn end is dissociated and the preparation for the subsequent rewinding process is successful. Done.

  That is, by the machine control device 28 of the automatic traverse winder 2, for example, in the context of the sensor device 26 arranged in the standby position area of the lateral conveyance section 6, on the other hand, the working unit 11 of the automatic traverse winder 2. The degree of filling is constantly monitored, and on the other hand, it is inspected to what degree of success the preparation device 10 performs when preparing the spinning cup 16 for the subsequent rewinding process.

  When the supply to the automatic traverse winder 2 falls below a preset limit value, in the illustrated embodiment, the filling degree of the working unit 11, which is preferably adjustable via the machine control device 28, can be preset. The machine controller 28 automatically acts in a direction to improve the degree of filling of the working part 11 when an acceptable preparation result of the preparation device 10 is present. To do.

  In such a case, the machine control device 28 switches the normal operation elapsed time of the cup preparation device 10, that is, the cup preparation device 10 starts from the normal mode in which the preparation time for each spinning cup 16 is preferably about 4 seconds each. The preparation time for each spinning cup 16 is switched to a so-called “quick mode” which takes only about 1.5 seconds.

  As soon as the machine controller 28 recognizes that the filling degree of the working unit 11 of the automatic traverse winder 2 by the properly prepared spinning cup 16 has been normalized or standardized again via the sensor device 26. The machine control device 28 automatically switches the cup preparation device 10 from the “quick mode” again to return to the normal mode.

  1 ring spinning machine, 2 automatic traverse winder, 3 cup supply section, 4 winding pipe return section, 5 storage section, 6 horizontal transport section, 7 preparation section, 8, 9 branch section, 10 cup preparation device, 11 working section, 12 Spinning Cup / Pipe Transport System, 14 Signal Line, 15 Central Area, 16 Spinning Cup, 18 Transport Plate, 20 Machine Longitudinal Axis, 22, 23 Conveyor Belt, 25 Transport Plate, 26 Sensor Device, 28 Machine Control Device, 30 connection system, T transport direction

Claims (11)

A method of preparing a spinning cup manufactured in a ring spinning machine for a subsequent rewinding process in a working part of an automatic winding winder equipped with an automatic spinning cup / pipe transport system, In the cup preparation device, the yarn end is dissociated from the spinning cup, received, positioned at the preparation position, and then the yarn end is newly received in the working area of the automatic winding winder to rewind the spinning cup. In the method of starting the process:
Using the machine control device (28) of the automatic traverse winder (2), the supply of the spinning cup (16) to the automatic traverse winder (2) is monitored and the supply falls below a preset limit value. In order to improve the supply to the automatic winding winder (2), the cycle output of the preparation process of the cup preparation device (10) is increased.   2. The method according to claim 1, wherein the supply to the automatic winding winder (2) is monitored by the respective filling degree of the working part (11) of the automatic winding winder (2) with the spinning cup (16).   In order to detect the respective filling degree of the working part (11) of the automatic winding machine, the prepared spinning cup (16) located at the standby position in the area of the working part (11) is monitored by a sensor. The method of claim 2.   Monitoring of the filling degree of the automatic winding winder (2) with the spinning cup (16), the number of spinning cups (16) supplied to the automatic winding winder (2) and the returned empty pipe or completely fed out. The method according to claim 1, wherein the method is performed by counting the number of unwound winding tubes.   The method according to claim 1, wherein the supply to the automatic winding machine (2) is monitored on the basis of the number of prepared spinning cups (16) delivered from the cup preparation device per unit time.   The result of the yarn end detection in the cup preparation device (10) is monitored using a sensor device, and when there is no preset minimum preparation rate of the cup preparation device (10), an increase in cycle output is suppressed. A method according to any one of claims 1 to 5.   The method according to claim 6, wherein during the last 5 minutes of the elapsed running time of the cup preparation device (10), the cycle time is increased if at least 75% of the cup preparation attempts are successful.   The preparation time of the cup preparation device (10) in the normal mode is about 4 seconds for each spinning cup (16), and after the increase of the cycle output to the so-called “quick mode”, about every spinning cup (16). The method of claim 7, wherein the method is 1.5 seconds.   The cup preparation device (10) feeds back or modifies one or more of the work processes of the cup preparation device (10) to increase the cycle output of the cup preparation device (10) in "quick mode". 9. The method of claim 8, wherein one or more work processes are omitted.   The degree of increase in the cycle output of the cup preparation device (10) is determined in relation to the result of the cup preparation device (10) at the time of detecting the yarn end of the spinning cup (16), respectively. 10. The method according to any one of up to 9.   11. As soon as the supply of the spinning cup (16) to the automatic winding machine (2) is normalized, the cup preparation device (10) is switched again from the “quick mode” to return to the normal mode. The method of any one of Claims.

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