JP2847891B2 - Automatic machine operation control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention provides operations such as pipe change (doffing) and shino change necessary for operation of a number of spinning machine stands such as a spinning frame or a roving frame. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation control method for an automatic machine in a system that is performed by using an automatic machine that runs automatically.

[Prior Art] A method of automatically performing a pipe change (doffing) operation when a spinning frame is full by a pipe changer has become widespread. There is a wagon type that performs pipe change work for frying and inserting an empty bobbin.
Further, in order to promote labor saving and rationalization, an automatic machine other than a tube changing machine such as a Shino machine has been proposed, and an automatic machine for changing a roving machine has also been proposed. Generally, in these automatic machines, one automatic machine is in charge of a plurality of spinning machines due to the work interval and capacity. This kind of automatic machine is mounted on a carrier on a rail laid on the side of the end of the spinning machine stand, reciprocates, and stops at a position corresponding to the spinning machine stand that is issuing a work request signal. Work was performed on the spinning machine stand.

However, in the above automatic machine operation method, when the spinning machine outputs a work request signal immediately after passing the certain spinning machine, the automatic machine immediately moves to a position corresponding to the spinning machine. Instead, after moving on the rail to the end, the moving direction is changed, and the work on the spinning machine stand is enabled only when the position corresponding to the spinning machine stand is reached again. Therefore, the moving distance of the automatic machine becomes unnecessarily long, so that not only the life of the traveling system of the automatic machine is shortened, but also the stopping time of the spinning machine base is increased.

To solve this inconvenience, Japanese Unexamined Patent Publication No. 62-276035 discloses that a work start command means for a work machine (automatic machine) is connected to a work command means provided on a spinning machine stand to output a work command. The work machine is provided with a receiving means for receiving the movement start command, and the receiving means is connected to a drive circuit of the travel motor so that the travel motor is driven when the movement start command is received. There has been proposed a work system configured to start a work machine from a standby position.

In general, the timing at which the work request signal is issued from the spinning machine stand is before the machine can be operated by the automatic machine at the relevant machine stand, and the automatic machine moves to a position corresponding to the spinning machine stand that issued the work request signal. After that, the machine stands by at the machine end until a work start signal (work preparation completion signal) is output from the machine. Also, in order to be able to work with the automatic machine at the spinning machine stand, besides the spinning machine side being in a predetermined state, in the case of a refilling machine, the removal of the full bobbin after completion of the previous doffing and the completion of the transfer of the empty bobbin have been completed. In the case of a Shino changing machine, it is necessary to complete the unloading of the remaining roving bobbin after the previous Shino changing and the loading of the spare Shino winding (full bobbin). When the system is operating normally, the spinning machine output a work request signal and the unloading and loading of each bobbin is completed before the automatic machine reaches the end of the machine. . For this reason, after the work request signal is issued, it takes time for some trouble until the work by the automatic machine can be performed, and the automatic machine waits for a long time at the end of the machine and stops at another spinning machine. The problem that work cannot be performed occurs. To solve this problem, Japanese Patent Application Laid-Open No. 62-276034 discloses a warning signal when a work start signal is not issued within a predetermined time from when an automatic machine is attached to an end of a spinning machine that has issued a work request signal. What is output is disclosed.

[Problems to be Solved by the Invention] However, in the work system described in Japanese Patent Application Laid-Open No. 62-276035, useless running of the automatic machine is reduced, but the automatic machine is stopped at the machine end where the work request signal is issued. If work preparations are not completed on the machine in spite of being on standby, a work request signal is issued after the machine, and even if there is a spinning machine ready for work, work by the automatic machine is performed first. However, the operation is not performed until the operation of the machine that has issued the operation request signal is completed, which causes a problem that not only the operation rate of the automatic machine is reduced but also the operation rate of the spinning machine table is reduced.

On the other hand, in the apparatus disclosed in Japanese Patent Application Laid-Open No. 62-276034, a warning signal is issued when a work start signal is not issued within a predetermined time from the time when the automatic machine is attached to the end of the spinning machine base that issued the work request signal. By outputting the information, the worker is called, the cause of the trouble is removed by the worker, and the work by the automatic machine of the machine can be performed. However, not only does the operator need to constantly monitor for the presence or absence of an alarm signal, but also after the alarm signal is output, the operator automatically resolves the trouble of the machine and returns to the workable state by the automatic machine. There is a problem that the machine needs to wait and the time during that time is wasted. Also, in the spinning machine, the transport and supply of full bobbins and empty bobbins between the winder process, which is a post-process,
The roving machine transports and supplies full roving bobbins and empty bobbins to and from the spinning machine, which is a subsequent process, so if a trouble occurs in one process, its influence affects the other process, and the cause of the trouble May not be in the spinning machine that output the work request signal, and there is a spinning machine that outputs a work request signal after the spinning machine and is ready to work after waiting for the trouble to be resolved. Nevertheless, there is a problem that the operation of the automatic machine cannot be performed, and the operating rates of the automatic machine and the spinning machine stand are reduced.

The present invention has been made in view of the above-described problems, and has as its object to reduce the work waiting time of the spinning machine stand when performing operations such as re-spinning of the spinning machine stand and Shino changing using an automatic machine. An object of the present invention is to provide an operation control method for an automatic machine, which can minimize the number of operations and improve the operation rates of the automatic machine and the spinning machine stand.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, operations such as pipe change and shino change necessary for the operation of a number of spinning machine stands are performed by an automatic machine that automatically travels. In such a system, among the spinning machines, the spinning machines which output the work request signal output during a predetermined period before the completion of the work preparation are registered in the storage device in the order of the signal output, and the registered spinning machines are registered. A control device for registering the presence or absence of a work preparation completion signal output after completion of the work in the storage device and outputting a command signal for instructing an automatic machine to a destination is registered in the storage device in a plurality of upper registration devices. When determining priorities in
The machine that is higher in the order of registration of the work request signal and that outputs the work preparation completion signal is preferentially set as the destination machine.

[Action] In the present invention, pipe change required for operation of the spinning machine stand,
Based on a command signal from the control unit, a position corresponding to the spinning machine that needs work is installed among many automatic machines such as a tube changing machine and a Shino changing machine that perform work such as Shino changing. To work on the spinning frame. A spinning machine that requires work outputs a work request signal at a predetermined time before the completion of work preparation, and is registered in the storage device in the order of signal output. Also, the presence or absence of a work preparation completion signal output from the registered spinning frame after the work is completed is registered in the storage device. When instructing the destination to the automatic machine, the control unit gives priority to the machine which is higher in the order of registration of the work request signal and which outputs the work preparation completion signal, and sets the machine as the destination machine.

Embodiment An embodiment in which the present invention is embodied in an operation control method for a spinning machine of a spinning machine will be described below with reference to FIGS.

As shown in FIG. 1, a number of spinning frame units SF are arranged side by side.
On one side, an inter-machine traveling rail 1 is laid so as to be orthogonal to the longitudinal direction of the spinning machine frame SF. A pipe changing machine 3 as an automatic machine for performing pipe changing work by moving along guide rails 2 extending on both left and right sides of the spinning machine frame SF includes a carrier 4 moving on the inter-machine running rail 1. Is transported to a position corresponding to the spinning frame SF requiring pipe replacement work, and a connection rail (not shown) mounted on the carrier 4 is connected to the guide rail 2 at this position. After that, the pipe is moved along the guide rail 2 to perform the pipe replacement work.

Each spinning frame SF includes a tube change request signal transmitting device 5 and a tube preparation completion signal transmitting device 6, and a control device 7 receives a tube request signal as a work request signal and a tube as a work preparation completion signal. And a replacement preparation completion signal. The pipe change request signal is output when the spinning amount in each spinning frame SF reaches a predetermined value. In addition, the tube change preparation completion signal is transmitted from a known bobbin transport device (not shown) disposed on both the left and right sides of the spinning frame SF.
It is output when the unloading of the previously bobbed full bobbin and the loading of the empty bobbin to the predetermined position are completed. A machine number display section 8 for displaying the machine number of each spinning machine frame SF with a bar code on a side corresponding to the inter-machine running rail 1 of each spinning machine frame SF, and a signal provided on the carrier 4 A relay device 10 for relaying signal transmission / reception between the transmission / reception device 9 and the control device 7 is provided. Further, the carrier 4 is equipped with a reading device 11 for reading the bar code of the machine number display section 8 while moving along the inter-machine traveling rail 1.

The control unit 7 receives a pipe change request signal and a pipe change preparation completion signal from each spinning frame SF to perform arithmetic processing, and a read only memory storing a control program. Program memory 13 consisting of (ROM)
And a working memory 14 as a storage device comprising a readable and rewritable memory (RAM) for temporarily storing the results of arithmetic processing in the CPU 12, and the CPU 12 is configured based on program data stored in the program memory 13. Operate.

The CPU 12 inputs the output signal from the pipe change request signal transmission device 5 of each spinning frame machine SF, and stores the machine numbers in the storage area (register) 15a of the working memory 14 in the input order.
In addition, an output signal from the tube change preparation completion signal transmitting device 6 is input, and whether or not the tube change preparation work in each spinning frame SF is completed is stored in another storage area (register) 15b. .
And when carrier 4 inquires about the replacement destination,
The next work machine number is instructed to the carrier 4 with priority given to the higher order of the change request machine registered in the machine ready for replacement stored in the work memory 14. Further, the control device 7 calculates whether the next working machine stand is in the left or right direction of the spinning machine stand SF where the carrier 4 is currently stopped, and determines the direction of movement with respect to the carrier 4, that is, the carrier 4 Of the drive motor (not shown) in the forward and reverse rotation directions.

Next, the operation of the device configured as described above will be described.
(Note that, for convenience, the number of spinning machine units SF is eight, but the number of accepting machines of the refilling machine 3 is actually much larger.) The spinning amount of each spinning machine unit SF is a predetermined value. When the vehicle is almost full, a full notification signal is output, and based on the signal, a tube replacement request signal transmitting device 5 is output.
Outputs a switching request signal to the control device 7. When the tube change request signal is input to the control device 7, the CPU 12 stores the storage area (register) 15a in the working memory 14 in the input order.
The machine number is registered in. Further, the unloading of the full bobbin and the loading of the empty bobbin to the predetermined position by the bobbin transfer device mounted on the spinning frame SF are completed, and a refill preparation completion signal is output from the refill preparation completion signal transmission device 6. Is done. In accordance with the presence / absence of the pipe change preparation completion signal, the CPU 12 registers whether the pipe change preparation is completed for each spinning frame SF in the storage area (register) 15b of the working memory 14.

The carrier 4 stands by at a position corresponding to the end of the spinning frame SF, and the signal transfer device 9 controls the relay device 10 of the spinning frame SF.
The controller 7 is inquired of the destination, that is, the refilling machine stand via the control device 7. When there is a destination inquiry from the carrier 4, the control device 7
Determines whether or not the registered renewal requesting machine is in the renewal preparation completion state, and gives priority to the machine in the registration order for the machine in the renewal preparation completion state to give priority to the relay device 10.
Then, the destination machine number is instructed to the carrier 4 via the signal transfer device 9. That is, when a destination is instructed to the carrier 4, the order of registration of the renewal request signal is in principle. The machine in is given priority. Therefore, as shown in FIG.
If the destination is inquired from Carrier 4 in the state where o.7, No.3 ... are registered in that order, No.6 is the earliest registration, but is not in the pre-exchange ready state. The No. 7 machine in the second place in the registration order in the replacement preparation completed state has the first priority, and the No. 7 machine is instructed to the carrier 4 as its destination.

When the carrier 4 receives a command from the control device 7, the carrier 4 moves along the inter-machine traveling rail 1 according to the command, and the reading device 11 reads the machine number display portion 8 of the spinning frame machine SF to be instructed. Stop at the position corresponding to the spinning frame SF of the frame number. Then, the control unit 7 is confirmed from the signal transfer device 9 to the control device 7 through the relay device 10. When there is an inquiry from the carrier 4, the control device 7 compares the machine number stored in the storage area 15a, and if the inquiry is the same, sends a work start signal to the carrier 4 and the machine number stored in the storage area 15a. Clear the number. When the carrier 4 receives the work start signal, the connection rail is moved to the guide rail 2.
The pipe changer 3 moves along the guide rail 2 to perform a pipe change operation. After the refilling is completed, when the refilling machine 3 returns to the carrier 4 and the connection rail is disconnected from the guide rail 2, the carrier 4 inquires the control device 7 of the next destination, that is, the refilling machine stand.

At this point, the state of the storage area 15a shown in FIG.
The registration of the machine number of o.7 is deleted, and the one registered in the lower rank is carried forward in order, and the registration order of the replacement request machine number is No.6, No.3, No.1 ... ing. When a destination inquiry is made from the carrier 4 to the control device 7, the control device 7 determines the priority in the same manner as described above. By this time, if the No. 6 spinning frame SF is in a ready state for pipe replacement, No. 6 is instructed to carrier 4 as the destination, and the No. 6 spinning frame SF is If the tube is not ready for replacement, No. 3 is instructed as the destination as described above. That is, when the control device 7 determines the destination machine of the carrier 4, it is essential to be in a ready-for-replacement state, but the priority is given to the machine to which the replacement request signal is output first. Becomes dominant, and is not affected by the order in which the replacement preparation completion signal is output.

The present invention is not limited to the above-described embodiment. For example, the present invention is not limited to the spinning of a spinning machine, but may be embodied in the operation control of a roving machine or a spinning machine. In the case of the operation control of the Shino change machine, a Shino change request signal as a work request signal is output when the roving amount of the Shino winding (roving bobbin) suspended on the creel reaches a predetermined value, When the unloading of the remaining roving bobbin after the replacement and the transfer of the spare roasting bobbin to the predetermined position are completed, a roving replacement completion signal as a work preparation completion signal is output. Also, instead of using an automatic machine mounted on the carrier 4 and moving between the spinning machines, a self-propelled automatic machine is used. A control device provided in the device or the roving conveying device, or a control device for instructing the work machine table may also serve as a control device of the bobbin conveying device or the roving conveying device. Furthermore, instead of instructing the machine number as a method of instructing the carrier 4 on the destination, only the moving direction of the carrier 4 may be instructed. In this case, the carrier 4 is provided with a sensor for detecting the display of the stop display unit provided in each spinning frame SF, and the stop display unit performs stop display according to a command from the control device.

[Effects of the Invention] As described in detail above, according to the present invention, when performing operations such as pipe switching and spinning of a spinning machine stand using an automatic machine, a spinning machine stand that outputs a work request signal first. If the machine is not ready for work, and if work is possible on another machine, even if the work request registration order is lower, the work instruction is given to the automatic machine, so the spinning machine stop time as a whole This shortens the operation time of the spinning machine. In addition, the useless waiting time of the automatic machine is eliminated, and the operation rate of the automatic machine is improved.

[Brief description of the drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a schematic plan view, and FIG. 2 is a diagram showing a registration state of a work requesting machine and a work preparation completed machine with respect to a storage area. FIG. 4 is a diagram illustrating a relationship between a command signal and a carrier. A refilling machine 3 as an automatic machine, a carrier 4, a refilling request signal transmitting device 5, a refilling preparation completion signal transmitting device 6, a control device 7,
A signal transfer device 9, a CPU 12, a working memory 14 as a storage device, storage devices (registers) 15a and 15b, and a spinning machine stand SF.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-141133 (JP, A) JP-A-62-215024 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) D01H 13/00 D01H 9/08 D01H 9/18

Claims (1)

(57) [Claims] In a system in which operations such as pipe change and reshaping necessary for the operation of a large number of spinning machine stands are performed by an automatic machine that automatically travels, before the preparation for work is completed among the spinning machine stands. The spinning machine that has output the work request signal output at a predetermined time is registered in the storage device in the order of the signal output, and the presence or absence of a work preparation completion signal output after the completion of the work from the registered spinning machine is stored. Registered in the device, when the control device that outputs a command signal for instructing the destination to the automatic machine determines the priority order among the plurality of higher-order registered machines registered in the storage device, when the work request signal An operation control method for an automatic machine in which a machine having a higher rank in the order of registration and outputting the work preparation completion signal is preferentially set as a destination machine.