JPH0811856B2 - How to stop the loom - Google Patents

Description

The present invention relates to a method for stopping a plurality of running looms.

[Conventional technology]

As a central control method for a loom that is directly controlled by a central computer of a plurality of loom, for example, Japanese Patent Laid-Open No.
There is a method described in JP-A-59-211658.

The control method is such that a plurality of looms directly controlled by a microcomputer and a host computer are connected by a data bus, and one or all of a plurality of loom groups is designated and designated by control data from the host computer. A specific command including at least one of a machine stop command and a machine start prohibition command is given to the loom. At this time, the corresponding loom carries out the stop operation according to this specific command by its own microprocessor.

[Problems to be solved by the invention]

In such a conventional technique, when the loom is stopped by a stop command from the central host computer,
The host computer designates any or all of the loom and transmits a machine stand stop command. Therefore, the control unit of the loom immediately stops the machine base uniformly based on this machine stop command. In such a uniform stopping method, except for the case of emergency stop due to an abnormal situation, depending on a certain machine, even if it is more efficient to continue operating the machine, it will be based on the stop signal. Since the machine base is forcibly stopped irrespective of the operation status, there is a problem that the production efficiency is reduced as a whole.

The present invention has been made in view of such problems in the conventional art, and an object thereof is to enable each machine stand to be rationally stopped in order to improve production efficiency. .

[Means for solving problems]

In order to solve the above-mentioned problems, a method for stopping a loom according to the present invention is such that when any one of a plurality of looms or all the looms are to be stopped at the same time, the host computer first makes an emergency stop. If it is determined that it is necessary to stop, and if it is determined that it is necessary, give a loom stop command to the loom to be stopped, but it is not necessary, that is, when it is determined to be a normal stop,
First, grasp the current operating status from the control status data from each loom, determine whether it is more efficient to continue the operation than immediately stop the loom, and then issue an operation continuation command or stop to each loom. It is designed to transmit commands.

By using such a stopping method, for example, when the beam winding diameter is small or when the weaving length is close to the cut length, the operation of the loom is continued, and the stop sensor is activated after the end of the weaving to operate the machine base. Since it is automatically controlled, it is possible to improve the production efficiency and obtain a high-quality woven fabric with few stop stages.

〔Example〕

FIG. 1 shows the configuration of a central control device for a loom to which the method for stopping a loom according to the present invention is applied.

The central host computer 1 has a keyboard 2 for inputting various data, a display 3 such as a CRT, a keyboard 2 and an interface 4 of the display 3,
It has an arithmetic control unit 5, a RAM 6, a ROM 7, an input port 8 and an output port 9. These are connected to each other via an internal bus.

Furthermore, the host computer 1 outputs from the output port 9 an output channel selector 10 to which the control data output from the output port 9 is input, an input channel selector 11 to input the control state data indicating the operation status from each loom 13 described later, and the output port 9. Decode the machine number of and input the channel selection signal to the input channel selector 11 and output channel selector
It is equipped with a decoder 12 which gives to 10.

Then, the plurality of looms 13 include the input channel selector 11 and the output channel selector of the host computer 1.
Connected to each 10, each loom 13 comprises an interface 14 and a machine base, ie a microcomputer 15 for directly controlling the mechanical parts of the loom 13. In this device, the plurality of looms 13 are connected to the input channel selector 11 and the output channel selector 10 of the host computer 1 via independent communication paths 16, respectively.

Next, FIG. 2 is a flowchart showing the operation of the host computer 1 when the method for stopping a loom according to the present invention is carried out.

By a stop command from the central host computer 1 and a stop command based on a stop signal from a stop sensor provided in each loom 13, for example, all loom 13
In the case of stopping all the machines, the host computer 1 reads the signal for stopping all the looms in the first step after the start of the stop program, and judges from the contents whether or not it is necessary to urgently stop all the machines. To do.

In this step, for example, when a failure of a compressor common to all loom groups or all machines lowers the air pressure of one loom group or all machines, and the quality of the fabric is impaired, abnormality detection by the pressure sensor connected to the compressor is detected. On the basis of a stop command issued from the host computer 1 to the corresponding loom 13 on the basis, it is judged that it is necessary to stop all the machines urgently, and the process proceeds to the step. In this step, the machine number is specified, whereby the decoder 12 in the host computer 1 and the output channel selector 10 select the communication path 16 connected to the corresponding loom 13, and then the subsequent steps so,
The loom stop command is transmitted. In the subsequent step, it is judged whether all the looms are finished, and by repeating the steps and steps until all the looms are finished, the loom stop command is sequentially transmitted to all the looms.

In the step, when a stop command is issued from the central host computer 1, for example, when the operation of the weaving factory is stopped, all the machines are stopped at the same time based on a clock or a manual switch regardless of the operating state of the loom 13. When it is determined that it is not necessary to urgently stop all the machines due to the quality of the loom, as in the case of a normal stop command, that is, when it is determined to be N ₀ , this stop program moves to step. In this step, the machine number is designated, and the communication path 16 connected to the loom 13 to be stopped is selected by the decoder 12 and the input channel selector 11. As a result, control state data indicating the operating condition, such as beam winding diameter and weaving length data, is input from the loom 13 to be stopped via the communication path 16 and the input channel selector 11.

Then, the data indicating the beam winding diameter in the control state data input in the step is read, and it is determined in the step stage whether or not the beam winding diameter is small. In this step, when the beam winding diameter is smaller than the predetermined value and it is determined that it is in a state close to rising, that is, when it is determined that the operation should be continued, that is, when Yes is determined, the process proceeds to step Transmit to the machine specified in.

Further, when the beam winding diameter is larger than the predetermined value in the step, that is, when it is determined to be No, in the step, the data indicating the weaving length in the control state data is read, and then in the step, this weaving length is read. Determines whether is close to the predetermined cut length. Here, when it is determined that the weaving length is close to the predetermined cut length, that is, when it is determined that the operation should be continued, the process proceeds to step and the operation continuation command is transmitted. When it is determined in step that the weaving length is not close to the predetermined cut length, that is, when it is determined that the operation is in the operation state where the operation should be stopped, the process proceeds to step and the loom stop command is transmitted.

After transmitting the operation continuation command or the stop command to the loom,
In step, it is judged whether all the units are finished. If all the units are not finished, the flow from step is repeated until all the units are finished.

As described above, for stop commands other than emergency simultaneous stop, the operations after the step are repeated until the end of all units, and the beam winding diameter is small and the beam is close to the machine or close to the cut length. The operation state is such that the operation should be continued without stopping immediately, and the operation is continued and the weaving is performed. When the weaving is performed, the operation is stopped by the stop sensor provided in the loom to prepare for the re-operation.

In FIG. 2, it is assumed that all the units are stopped. However, substantially the same operation is performed when the unit is stopped by designating a specific machine number.

In the apparatus shown in FIG. 1, the host computer 1 and a plurality of looms 13 are connected to each other through independent communication paths 16 so that the host computer 1 side selects a machine number. To this end, each loom 13
The side microcomputer 15 does not need an operation of comparing the transmission code with its own machine base number, and can concentrate on another operation such as operation control of the loom.

[Other Examples]

FIG. 3 shows another configuration of the central control device for the loom to which the method for stopping the loom according to the present invention is applied. In this device, a host computer 1 and a plurality of looms 13 are connected by a bidirectional data bus 17.

The host computer 1 attaches the machine number to the control data and sends it to the bidirectional data bus 17, and the microcomputer 15 on the side of each loom 13 judges whether or not it is the machine number of its own. Is different from Other stop operations are the same.

〔The invention's effect〕

As described above, in the case of the normal stop command, the method of the present invention grasps the operating status of each loom, and the operation in which the beam winding diameter is small or the weaving length is close to the cut length should be continued. When in the state, the operation is continued. Therefore, according to the present invention, it is possible to rationally control the stoppage of each loom, so that not only the production efficiency as a whole is improved, but also a good quality woven fabric can be produced.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a central control device for a loom to which the method for stopping a loom according to the present invention is applied. FIG. 2 is a flowchart showing the operation of a host computer for carrying out the method for stopping a loom according to the present invention. FIG. 7 is another configuration block diagram of a central control device for a loom to which the method for stopping a loom according to the present invention is applied. 1 ... host computer, 2 ... keyboard, 3 ...
Display, 4 ... Interface, 5 ... Arithmetic control unit, 6 ... RAM, 7 ... ROM, 8 ... Input port, 9 ...
… Output port, 10 …… Output channel selector, 11 ……
Input channel selector, 12 …… decoder, 13 …… loom, 16 …… communication path.

Claims (2)

[Claims] 1. A central control device for a loom, comprising a plurality of looms each comprising a machine base directly controlled by a microcomputer, and a host computer connected to the microcomputers of the plurality of looms. When all the loom groups or all of the plurality of looms are simultaneously stopped by the stop command, the host computer is based on the cause of the emergency stop of the loom to be stopped. When it is based on a stop cause that does not need to be stopped urgently by giving a stop command for all looms to be stopped, read the control status data indicating the operating status at that time from each of the looms to be stopped, The operating status of each loom to be stopped is determined from the control status data, and the operation to continue It is characterized in that the operation continuation command is given to the loom to be stopped that is determined to be in the spinning state, and the stop command is given to the loom to be stopped that is determined to be in the operating state. And how to stop the loom. 2. The control state data for judging the operating state of each loom is data indicating the beam winding diameter and the weaving length, and is operated when the beam winding diameter is small or the weaving length is close to the cut length. The method for stopping a loom according to claim 1, further comprising: determining that the operating condition should be continued.