JP6968612B2 - Methods and equipment for supplying empty tubes to auxiliary equipment for textile machinery - Google Patents

Description

The present invention provides an empty tube to a textile machine work station where an auxiliary device (attending devices) that requires a new tube is located, and to an auxiliary device for a textile machine, especially a spinning machine, where the empty tube is supplied in one direction by a conveyor. Regarding the method of supply.

Further, in the present invention, each row of work stations is provided with an empty tube container and an empty tube one-way conveyor, and each work station, a tube container, a tube conveyor on each side of the machine, and an auxiliary device are provided. It relates to a textile machine equipped with a control unit connected to, in particular a device for supplying empty tubes to at least two auxiliary devices displaceably arranged along at least one row of work stations of a spinning machine.

Automatic spinning machines that wind the spun yarn onto the final bobbin take-up device are usually equipped with several auxiliary devices that move along a row of work stations.

In some spinning machines, one empty tube is always stored in each work station, which is removed and replaced after being installed in the work station take-up device. This requires monitoring the condition of the tubes at the work station, which is usually done by the operator. In addition, a special and complex mechanism is needed to remove the tube from the conveyor and place it in the storage area.

Other known devices typically have one spare empty tube mounted on the auxiliary device, which requires the auxiliary device to replace the full wound bobbin with an empty tube. The spare empty tube is removed from the container by an auxiliary device and placed in the take-up device of the work station. For the efficiency of the system, it is of utmost importance to transfer the removed tube to the auxiliary device as soon as possible.

For spinning machines with two or more auxiliary devices on one side of the machine to avoid unnecessary downtime, a conveyor (usually a conveyor belt) identifies the tube from the container at the end of the machine. The order of auxiliary operation of the auxiliary equipment so that the tube can be delivered to the auxiliary equipment of the auxiliary equipment or to the corresponding work station without being taken out by other auxiliary equipment located between the specific auxiliary equipment and the container. Need to be resolved. This is a drawback of current spinning machines that realize the transfer of empty tubes to an auxiliary device with a single one-way belt conveyor.

For example, in Patent Document 1, the full-wound bobbin by the second auxiliary device is referred to as an empty tube until the operation of the first auxiliary device blocking the rail is completed and until the auxiliary device is separated from the traveling rail. This situation is resolved by limiting the fulfillment of the second request to be exchanged. FIG. 1 schematically illustrates a portion of a spinning machine comprising rows of work stations A1 to A13 and a unidirectional container C of a tube D provided at the end B of the machine. Next to the container C, a tube belt conveyor E is located and extends along the row of work stations A. The three auxiliary devices G are positioned on the traveling rail F.

At work station A9, the full bobbin needs to be replaced with an empty tube D. Auxiliary device G2 moves to work station A9 and requests that tube D be supplied via the control unit of the machine. The tube D1 is placed on the conveyor E from the container C, and the conveyor E conveys it to the work station A9 in the moving direction S thereof. While the tube D1 is still placed on the conveyor E after the request of the auxiliary device G2, the auxiliary device G1 stops at the work station A4 and requests the tube D as well. In this situation, the control unit evaluates the mutual position between the work stations A4 and A9 and the auxiliary devices G1, G2, G3 located at those work stations A4 and A9, until the auxiliary device G2 receives the tube D1. Alternatively, the request of the auxiliary device G1 is suppressed and the removal of the tube D1 from the conveyor E is not permitted until the tube D1 passes by the auxiliary device G1.

However, in many cases, the mutual position of the work stations A4 and A9 and the auxiliary devices G1 and G2 located at those work stations automatically suppresses the request of the auxiliary device G1 located closer to the container C. It is a major drawback due to the time required to do so. Therefore, this system is efficient only in some cases where auxiliary devices and / or work stations that require the insertion of new empty tubes are in certain suitable mutual positions.

European Patent No. 1675797

Therefore, it is an object of the present invention to improve the use of time of the auxiliary device when replacing a full-wound bobbin with an empty tube in a spinning machine work station.

An object of the present invention is realized by a method of supplying an empty tube to an auxiliary device of a textile machine according to the present invention, and the principle is that while at least one tube is present on a running conveyor, the other. At the same time there is a request for the supply of tubes by the auxiliary device, the other tubes are placed on the running conveyor and at least the mutual work stations of the machine requesting a new tube in which the auxiliary device is located. In assessing the position, the control unit determines the optimal allocation of tubes present on the running conveyor to auxiliary equipment requesting new tubes with respect to the optimal use of machine working time. be. This optimization reduces the amount of time the work station is not working, thereby increasing the productivity of the machine. This is especially important in modern high performance spinning machines with multiple auxiliary devices, and the greater the number of auxiliary devices, the more important the solution of the present invention.

Another improvement is the actual time when an empty tube was needed before determining the optimal order of allocation of tubes existing on the running conveyor to auxiliary equipment requesting new tubes. , And in an advantageous embodiment to evaluate the current position of the tube on the conveyor.

It is also advantageous to evaluate the actual point in time when empty tubes are needed based on the current and / or future maintenance activities of each auxiliary device, as well as their operation or the expected duration of their operation.

When a single machine spins different bundles of yarn at the same time, tubes of different colors are used for distinction. In such cases, the color of the tubes is evaluated before determining the optimal order of assignment of the tubes present on the running conveyor to the auxiliary equipment requesting new tubes.

The principle of the device that supplies empty tubes is that the control unit is at least based on the reciprocal comparison of the positions of the work stations of the machine where the auxiliary device is located, which is requesting a new tube. An algorithm for determining the optimal order of allocation to each auxiliary device requesting a tube is provided.

In a preferred embodiment, the determination algorithm is also provided with datasets for assessing the actual time point when the empty tube was needed and the position of the tube on the conveyor, which are preferably assisted by the auxiliary device. Contains information about the type of operation and its duration.

If necessary, the decision algorithm is given a dataset to evaluate the color of the tube and its assignment to a work station.

A schematic representation of a plan view of a portion of a row of work stations in a spinning machine provided with three auxiliary devices according to background technology. It is a top view which shows the apparatus which concerns on this invention. It is a block diagram of the mutual relationship between an auxiliary device of a machine, a device for placing an empty tube on a one-way conveyor, and a control unit. A table illustrating an example of the allocation of tubes to the three auxiliary devices according to requirements, taking only into account the mutual position of the work station and the current position of the tubes on the conveyor.

FIG. 2 schematically illustrates a portion of a spinning machine equipped with a device according to the invention that improves the supply of empty tubes to auxiliary devices that can be moved to individual work stations of the machine. The transport of a full-wound bobbin from a machine work station is not the subject of the apparatus of the present invention.

2 and 3 show one row 1 of the working station 11nn of the spinning machine 100 in an exemplary embodiment assisted by the three auxiliary devices 2, 3 and 4.

The auxiliary device moves on the guide rail 10 along row 1 of the work station 11. Each auxiliary device 2, 3 and 4 has its position and range of movement, and these parameters are adjustable. The container 102 of the empty tube 5 is located at the end 101 of the machine 100. Next to the tube container 102, an endless one-way conveyor 6 of the tube 5 is positioned and arranged along row 1 of the work station 11, the storage surface thereof of the auxiliary devices 2, 3 and 4. It is within reach of the illustrated handling means. Once the requirements for all preceding empty tubes have been fulfilled, the conveyor will be stationary and only one tube will be prepared outside the work area of the auxiliary device. A maximum of three tubes 5 can be simultaneously conveyed on the conveyor 6 according to the number of three auxiliary devices on one side of the machine.

Auxiliary devices 2, 3 and 4 include handling means 7 for stopping the empty tube 5 conveyed by the conveyor 6 and transferring it to a standby position on the auxiliary devices 2, 3 and 4. These known and not shown means transfer the stopping means 71 for stopping the tube 5 on the conveyor 6 to the stationary auxiliary device and the above-mentioned standby positions on the auxiliary devices 2, 3 and 4. Includes a gripping means 72 that, if necessary, inserts it into the take-up device of the work station 11nn.

According to FIG. 3, the auxiliary devices 2, 3 and 4 of the spinning machine 100 and all the work stations 11nn are connected to the control unit 8 of the spinning machine 100 via the bidirectional lines 21, 31 and 41. The control unit 8 is also connected to a device 9 (not shown) that transfers an empty tube 5 on a one-way conveyor 6 via a line 81, and other means (not shown) of the spinning machine 100.

In FIG. 2, the first auxiliary device 2 is located near the container 102, next to the work station 1103 in the direction away from the container 102 of the empty tube 5. As shown in FIG. 2, the second auxiliary device 3 is located downstream of the first auxiliary device 2 and next to the work station 1116. The third auxiliary device 4 is located downstream of the second auxiliary device 3 at the work station 1149 and operates so as to correspond to the end of row 1 of the work station 11nn.

When the full bobbin does not need to be replaced with an empty tube, the auxiliary devices 2, 3 and 4 located at the work station 11nn may be subjected to various other auxiliary actions (blow, detect, suck lint, etc.). Clean the work station). In terms of machine efficiency, from the standpoint of idle time, each unspun work station, including a work station with a full bobbin, needs to be put into production mode as soon as possible. Optimized transport of empty tubes to the work station 11nn contributes significantly to this end.

The operation of the device for supplying the empty tubes 5 or 51, 52, 53 to the auxiliary devices 2, 3 and 4 will be described with reference to an example of the arrangement of the auxiliary devices as shown in FIG.

For example, at the work station 1117, the full bobbin needs to be replaced with an empty tube 5, the empty tube 5 simply inserted into the take-up device of the work station, or the empty tube 5 needs to be transferred to the standby position of the auxiliary device. be. A second auxiliary device 3 moves to this work station 1117 and requests an empty tube 5. The conveyor 6 starts moving with the first tube 51 for the second auxiliary device 3. The second auxiliary device 3 on standby first inserts the tube 5 it holds into the take-up device of the work station 1117, and further operates. At the same time, the stop means 71 (not shown) extends into the area of the conveyor 6.

At the time of transporting the first tube 51 by the conveyor 6, the full bobbin is emptied at another work station, in the illustrated example, at the work station 1103 located closer to the container 102 of the empty tube 5 than the work station 1117. Often needs to be replaced with tube 5. The first auxiliary device 2 stops at the work station 1103 and requests the empty tube 5 before the preceding request of the auxiliary device 3 is fulfilled. A second tube 52 from the container 102 is placed on the running conveyor 6. The control unit 8 evaluates the optimal allocation of tubes 51, 52 to auxiliary devices 2, 3 in terms of their mutual position and other criteria to be judged.

In the current situation, the control unit 8 reserves, for example, the first tube 51 for the second auxiliary device 3 and the tube 52 for the first auxiliary device 2. The stopping means 71 of the second auxiliary device 3 is maintained in the extended state, and the stopping means 71 of the first auxiliary device 2 is retracted until the first tube 51 passes by the first tube 51, and then extended. .. Thereby, both auxiliary devices 2 and 3, i.e., auxiliary devices located at specific work stations 1117, 1103, wait for empty tubes for them to be delivered. That is, the second auxiliary device 3 waits for the tube 51, and the first auxiliary device 2 waits for the tube 52.

In other cases, at work station 1103, the full bobbin needs to be replaced with an empty tube. The first auxiliary device 2 stops at the work station 1103 and requests an empty tube. The conveyor begins to move with the first tube 51 intended for the first auxiliary device 2. The first auxiliary device 2 is waiting for the tube 51, and the stopping means (not shown) extends to the area of the conveyor 6. At the same time, the possessed tube 5 is inserted into the winding device of the work station 1103, and further operation is performed.

Subsequently, at the work station 1117, it is necessary to replace the full-wound bobbin with the empty tube 5. The second auxiliary device 3 stops at this work station 1117 and requests an empty tube 5 before the preceding request is fulfilled. The second tube 52 is placed on the traveling conveyor 6. As the control unit 8 evaluates the optimal allocation of tubes to the auxiliary devices 2 and 3, there may be two options for fulfilling these requirements.

In the first option, the target of the first tube 51 is the second auxiliary device 3, and the target of the second tube 52 is the first auxiliary device 2. As a result, since the first tube 51 was originally intended for the first auxiliary device 2, the target auxiliary device is replaced, but after receiving the request from the second auxiliary device 3, the determination is made by the determination algorithm. Later, the target of the first tube 51 becomes the second auxiliary device 3, and the target of the second tube 52 becomes the first auxiliary device 2. It is necessary to retract the stopping means 71 of the first auxiliary device 2, and it is necessary to extend it after the first tube 51 targeting the second auxiliary device 3 has passed. Auxiliary devices 2 and 3 wait for empty tubes 51, 52 for them to be delivered.

In the second option, the target of the first tube 51 is still the first auxiliary device 2, and the target of the second tube 52 is the second auxiliary device 3. The stopping means 71 of the first auxiliary device 2 stops the first tube 51 on the conveyor 6, and after it is taken out by the gripping means 72, the stopping means 71 of the auxiliary device 2 is retracted, and the second The stopping means 71 of the auxiliary device 3 of 2 may be extended immediately. Auxiliary devices 2 and 3 wait for empty tubes 51, 52 for them to be delivered.

In the following example, a combination of the three auxiliary devices 2, 3 and 4 will be described in a situation where the third requirement of the empty tube is made before the two preceding requirements are fulfilled.

At work station 1149, the full bobbin needs to be replaced with an empty tube. A third auxiliary device 4 stops at work station 1149 and requests an empty tube. The conveyor begins to move with the first tube 51 for the third auxiliary device 4. A third auxiliary device 4 is waiting for the tube 51, and a stop means 71 (not shown) extends into the area of the conveyor 6. At the same time, the possessed tube 5 is inserted into the winding device of the work station 1149, and further operation is performed.

After that, at the work station 1103, it is necessary to replace the full-wound bobbin with the empty tube 5. The first auxiliary device 2 stops at the work station 1103 and requests the empty tube 5 before the preceding request is fulfilled. The second tube 52 is placed on the traveling conveyor 6. The control unit 8 evaluates the optimal allocation of tubes to the auxiliary devices 2 and 4. After evaluating the current position of the assisted work station and the current position of the tube on the tube conveyor, the target of the tube 51 becomes the third auxiliary device 4, and the target of the tube 52 becomes the first auxiliary device 2. Become. The first auxiliary device 2 is waiting for the tube 52, and after the first tube 51 for the third auxiliary device 4 has passed, the stopping means is extended to the area of the conveyor 6. At the same time, the possessed tube 5 is inserted into the winding device of the work station 1103, and other operations are performed.

Also, at the work station 1117, it is necessary to replace the full-wound bobbin with the empty tube 5. The second auxiliary device 3 stops at this work station 1117 and requests an empty tube 5 before the preceding request is fulfilled. The third tube 53 is supplied onto the traveling conveyor 6. The control unit 8 evaluates the optimal allocation of tubes to auxiliary devices 2, 3 and 4. There are two options that meet these requirements when using only the current position of the assisted work station and the current position of the tube on the conveyor belt.

In the first option, the subject of the first tube 51 remains the third auxiliary device 4, the subject of the second tube 52 is in this case the second auxiliary device 3, and the subject of the third tube 53. Is the first auxiliary device 2. The stopping means 71 of the third auxiliary device 4 is maintained in the extended state, the stopping means 71 of the second auxiliary device 3 is not extended until the first tube 51 passes by the first tube 51, and finally. The stopping means 71 of the first auxiliary device 2 is not extended until the first tube 51 and the second tube 52 pass through. Auxiliary devices 2, 3 and 4 wait for empty tubes 51, 52 and 53 for them to be delivered.

In the second option, the target of the first tube 51 is the third auxiliary device 4, the target of the second tube 52 is the first auxiliary device 2, and the target of the third tube 53 is the second auxiliary device. It becomes the device 3. The stopping means 71 of the third auxiliary device 4 is maintained in the extended state, and the stopping means 71 of the first auxiliary device 2 is extended after the first tube 51 has passed by the first tube 51, and the second The stopping means 71 of the auxiliary device 3 of the above is extended after the first tube 51 has passed. First, the second tube 52 is taken out by the first auxiliary device 2, and then the third tube 53 for the auxiliary device 3 passes through the first auxiliary device 2. Auxiliary devices 2, 3 and 4 wait for empty tubes 51, 52 and 53 for them to be delivered.

The algorithm for the optimal order of assignment of the tubes 5 present on the conveyor 6 to the individual auxiliary devices 2, 3 and 4 requesting the new tubes 5 is for optimal use of the spinning machine 100 in time. Contribute and thus determine the order in which the empty tubes 5 are supplied to the auxiliary devices 2, 3 and 4. In doing so, it first requires a current reciprocal comparison of the positions of auxiliary devices 2, 3 and 4, the current auxiliary movement and the expected duration of this movement, followed by the expected auxiliary movement, an empty tube. Use criteria such as the current position of the tube 5 on the conveyor 6 at the actual time point. Alternatively, in some cases, it may be another criterion, such as, for example, a different color of tube 5 from an assignment point to a work station.

The operation of the apparatus according to the present invention is schematically shown in the table of FIG. Here, only the mutual position of the assisted work stations and the current position of the tube 5 on the conveyor 6 are evaluated. In the first three columns of the table, auxiliary devices 2, 3 and 4 are arranged in ascending order according to their reference numerals in the direction away from the container 102 of the empty tube 5. In each of these three columns, auxiliary devices 2, 3 and 4 are arranged according to the order in which the empty tubes 5 are requested. Other tree columns show various examples of the assignment of tubes 51, 52, 53 to the auxiliary devices 2, 3, 4 according to the criteria evaluated by the control unit 8 of the spinning machine 100.

If an error occurs in each of the auxiliary devices 2, 3 and 4, for example an error that makes it no longer possible to remove the tube 5, this does not interfere with the removal of the other tube 5 by the other auxiliary device. According to one embodiment, with respect to the tube 5 for the auxiliary devices 2, 3 and 4 having a problem in taking out the tube, the tube is placed at the end of the textile machine in which the collection container (not shown) is positioned. The tube that could not be taken out there is placed in the collection container. According to another advantageous embodiment, the tube 5 for the defective auxiliary devices 2, 3 and 4 that failed to take out the tube 5 is moved on the conveyor 6 by, for example, reversely moving the conveyor 6. It is transported to the initial position, where it is kept waiting until requested by the other auxiliary devices 2, 3 and 4. In this case, after the request for such a tube 5 already at the starting point of the conveyor 6, the new tube 5 is not placed on the conveyor 6 and the operation of the device is started. That is, the transportation of the tube according to the present invention starts.

The present invention is not limited to the three auxiliary devices. The use of the three auxiliary devices is only used as a basic example of the embodiments used herein to illustrate the principles of the invention, and the actual number of auxiliary devices used in the machine is the machine. Depends on the specific requirements of and the automation of its operation.

1 Row of work stations 10 Guide rails (of auxiliary equipment) 100 Spinning machine 101 End of spinning machine 102 Empty tube container 11 Work station (1101, 1102, ..., 1151)
2 First auxiliary device 21 (between the control unit and the auxiliary device) bidirectional line 3 Second auxiliary device 31 (between the control unit and the auxiliary device) bidirectional line 4 Third auxiliary device 41 (between the control unit and the auxiliary device) Bidirectional line 5 (between control unit and auxiliary device) Tube 51 1st (feeding tube)
52 Second (Sending tube)
53 Third (tube being sent)
6 Conveyor (of empty tube) 7 Means for stopping the empty tube conveyed by the conveyor 6 and means for transporting it 71 Stopping means 72 Gripping means 8 Control unit 81 of spinning machine (control unit and tube transfer device) Bidirectional line 9 (between container and conveyor) Empty tube transfer device A1 to A13 Spinning machine work station B Machine end C Tube container D, D1 Tube E Tube conveyor F (Auxiliary device) Travel rail G1 to G3 Auxiliary device S Direction of movement of tube conveyor

Claims (10)

A method of supplying an empty tube (5) to an auxiliary device (2, 3, 4) of the spinning machine (100), wherein the tube (5) is one of the spinning machines (100) by a conveyor (6). is fed in a direction, the auxiliary device to request a new tube (5) (2,3,4) is positioned in the working station (1101-1151-11Nn), in the method,
If at least one tube (5) is present on the traveling conveyor (6) and there is a simultaneous request for supply of the tube (5) by another auxiliary device, the other tube (5) Is placed on the traveling conveyor (6) and at least the work station (1101-) of the machine where the auxiliary device (2, 3, 4) requesting a new tube (5) is located. The mutual position of 11nn) is evaluated to request a new tube (5) of the tube (5) present on the traveling conveyor (6) for optimal use of the working time of the machine. A method comprising determining the optimal order of allocation to each of the auxiliary devices (2, 3, 4). Determine the optimal order of allocation of the tube (5) present on the traveling conveyor (6) to the auxiliary device (2, 3, 4) requesting a new tube (5). 1. Method. Evaluate the actual time point when an empty tube (5) was needed based on the current and / or future auxiliary operation of each auxiliary device (2, 3, 4) and current and / or future maintenance activities. The method according to claim 2, wherein the method is to be performed. About the optimal order of assignment of the tubes (5) present on the traveling conveyor (6) to the individual auxiliary devices (2, 3, 4) claiming a new tube (5). The method of claim 1, characterized in that the color of the tube (5) present on the conveyor (6) is evaluated for the allocation of each work station (11nn) prior to determination. After the tube (5) is placed on the conveyor (6), the auxiliary device (2, 3, 4) requesting a new tube (5) fails to remove the tube (5). If so, the other auxiliary device takes out the target tube without interruption, and targets the auxiliary device (2, 3, 4) having a problem in taking out the tube (5). The method according to any one of claims 1 to 4, wherein the tube (5) is carried to a collection container at the end of the spinning machine. After the tube (5) is placed on the conveyor (6), the auxiliary device (2, 3, 4) requesting a new tube (5) fails to remove the tube (5). If so, the other auxiliary device takes out the target tube without interruption, and targets the auxiliary device (2, 3, 4) having a problem in taking out the tube (5). 1. The tube (5) is carried to an initial position on the conveyor (6), where it is made to wait for another auxiliary device (2, 3, 4) to be requested. The method according to any one of 4 to 4. A device that supplies an empty tube (5) to at least two auxiliary devices (2, 3, 4) displaceably arranged along at least one row of work stations (1101-11nn) of the spinning machine (100). Therefore, in the row of the work station (1101-11nn), a container (102) for an empty tube (5) and a one-way conveyor (6) for an empty tube (5, 51, 52, 53) are provided. The spinning machine (100) is provided with a control unit (8), wherein the control unit (8) is on one side of the spinning machine (100) with the individual working stations (11nn). In the device connected to the container (102) of the tube (5), the conveyor (6) of the tube, and the auxiliary device (2, 3, 4).
Based on mutual comparison between the positions of the work stations (11nn) of the machine in which the auxiliary devices (2, 3, 4) are located, at least in the control unit (8), requiring a new tube (5). , Each of the auxiliary devices (2, 3,) requesting a new tube (5) of a plurality of the tubes (5) present on the conveyor (6) with respect to optimal use of the working time of the machine. 4) A device characterized in that a determination algorithm for determining the optimum order of allocation to 4) is provided. The determination algorithm is also provided with a dataset for evaluating the actual time point when the empty tube (5) was needed and the position of the tube (5) on the conveyor (6). The device according to claim 7. The device of claim 8, wherein the data set for evaluating the actual time point in which the empty tube (5) is needed contains information about the type and duration of the auxiliary movement. 7. The determination algorithm is further provided with a dataset for evaluating the color of the tube present on the conveyor (6) and its allocation to a working station (11nn). The device described in.

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