JPH03104957A - Operation test system for electronic jacquard machine - Google Patents

Abstract

PURPOSE:To provide the title system so designed that an operation detection sensor is set up on every channel through which each actuation of e.g. a solenoid is transmitted to warp and whether the actuation is proper or not is determined, thereby suspending a loom before the failures of a jacquard machine are introduced into woven fabrics in the form of flaws. CONSTITUTION:Each operation detection sensor 8 set up corresponding to each solenoid 7 monitors the channel through which solenoid actuation is transmitted to warp and outputs each operation manner. Actuation signal data to solenoids are stored in an internal memory 5 after output, and from these data and data detected by the sensors, respective signals concerning the identical solenoid are compared, thereby determining whether the actuation for each transmission channel is proper or not.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a system and circuit for monitoring the operation of an electronic jacquard machine used in textile manufacturing. [Prior art] The operation of a Jacquard machine is such that each set of horizontal needles and vertical needles, which are arranged in pairs, operates independently based on pattern information. If you do not continue to monitor, you will not be able to accurately monitor 1E. Conventionally, the operation of a Jacquard machine has been investigated by emitting 5L of tin from the fabric that is woven as the Jacquard machine operates, but as the number of warp threads increases and the weaving structure becomes more complex, it becomes more difficult to detect failure points. Identification required considerable knowledge and effort. Furthermore, repairing scratches requires highly sophisticated technology and takes several tens of times more time than weaving, so it is desirable that damage does not occur even if the fabric breaks down. Also, by giving a specific simple pattern to the jacquard machine,
A method of visually inspecting the movement of the vertical needle of a Jacquard machine by dry running is also used, but it is becoming increasingly difficult to keep up with the speed of the machine. [Problems to be solved by the invention] In recent years, machines that electronically output pattern information using a solenoid to control the horizontal needles of a jacquard machine have become popular. However, even with this device, it is not possible to detect whether the motion is correct or incorrect for each bite of pattern information. Unfortunately, this electronic output device is currently not as reliable in operation as compared to conventional paper patterns. An electronically controlled Jacquard device without weft needles has also been proposed, but similarly, it has not been possible to detect whether the warp thread control is correct or incorrect for each bite. (Hereinafter, electronically controlled jacquards with or without horizontal needles will be collectively referred to as electronic jacquards.) This invention installs a sensor that detects the operation of the electronic jacquard machine for each bite, and uses the data that is the basis of the operation. We propose a system that identifies abnormalities by comparison, and
This paper attempts to solve the above problem by proposing a circuit that can temporarily store large amounts of sensor data instantaneously. [Means for solving the problem] This invention will be explained according to the drawings. Figure 1 shows a conventional control system. Pattern information read from a storage medium such as a floppy disk is transmitted to a group of solenoids each time the weft crosses, but signals indicating the operation results of each solenoid are not returned. Figure 2 shows an outline of the system of this invention. Even if the pattern information is output to the solenoid? A specific storage area is prepared for storing information. Sensors installed in a one-to-one correspondence with the solenoids are arranged to monitor the motion transmission path from the solenoid motion to the warp yarn, and output the individual operating status (ON or OFF). The outputs of the respective sensors are respectively connected to the row input terminals of a shift register, and the shift registers have their serial outputs connected in series with each other and are outputted to a data comparison circuit including a CPU. For shift register control, a line is connected to each shift register to simultaneously receive sensor signals from the CPU. In the embodiment, the shift register is a C-MOS 74
HCl65 was used. Figure 3 and below are examples of correspondence between solenoids and sensors. Figure 3 shows an electronic Jacquard device of the type that selects the horizontal needles of a conventional Jacquard machine, and a sensor mechanism with the structure shown in Figure 4 installed at the opposite end of the horizontal needles to create the circuit as the above system. This is a summary.

Figure 5 is an example of a structure in which a sensor is integrated into the horizontal needle selection mechanism. Figure 6 shows an example in which a sensor is incorporated into the operation unit of an electronic jacquard without horizontal needles. [Operation] This invention configured as described above will be explained in order of operation. The pattern information recorded on a floppy disk etc. is read and output to the solenoid in sequence. The data output at this time is not deleted immediately but is stored. The output pattern information is replaced with ON/OFF of the solenoid magnetomotive force, for example, as shown in Fig. 4, when the horizontal needle (1) is pushed and the magnet inside the rondo is sensitive to the magnetic detection sensor,
As in the case of the horizontal needle (1'), the sensors are divided into those that are not sensitive and those that are not sensitive. When this timing is obtained from the drive mechanism of the device and a parallel input permission signal is given to the shift register, the output state of the sensor is instantly stored temporarily. At the same time as the signal is captured, subsequent signal changes are not accepted, so next, a transfer signal of the captured data is sent to the shift register, and the data is captured as a series of continuous data to the data comparison circuit. Since the order of this series of data is known in advance, by comparing the data from the beginning with the previously stored solenoid output data, it is possible to display and output the data at which location when an abnormality is determined. [Effects of the Invention] With this invention, it has become possible to detect failures in the Jacquard device itself, which previously could only be detected in the form of scratches on the fabric. Moreover, it is possible to stop the loom before the malfunction becomes a scratch on the fabric. This eliminates unnecessary waste such as time-consuming wound recovery procedures. Specifically, if you issue a loom stop output to stop the loom when the first abnormality occurs and then perform subsequent data judgment, the loom can be stopped before a flaw occurs without being affected by the amount of time required for judgment. It is possible. Since the motion judgment results can be made for all pattern information, it is possible to not only simply display an abnormality to the operator, but also to point out the abnormal location, allowing even non-experts to perform accurate repairs and inspections. , In the sensor detection timing in the above example, the margin time for the horizontal hand to detect the movement at the above movement position is usually 10ms to 30ms, and if the sensor outputs are taken in one by one during this time, the later sensor outputs will be It becomes unstable. Since the circuit of this invention first takes in all sensor signals into the shift register in one pulse, it can be used with extremely high-speed rotating looms, and the reliability of individual sensor signals is also high. Sensor data is serially sent to the data processing circuit. Therefore, only one wire is required for transfer, and unlike parallel transfer, there is no need for multiple wiring paths or transfer order allocation circuits, simplifying the circuit.

[Brief explanation of drawings]

Figure 1 shows the conventional system configuration. Fig. 2 is a schematic diagram of the system configuration of the present invention. Fig. 3 is an overview diagram of the system of the present invention in which a horizontal needle selection 71t child jacquard device and a sensor device are installed in a conventional jacquard machine. Figure 4 is an operational diagram of the horizontal needle sensor mechanism in Figure 3 (top view) Figure 5 is a diagram of the sensor integrated into the electronic needle selection unit Figure 6 is the vertical needle unit of the electronic Jacquard device without horizontal needles l...Floppy disk drive 2...Operation panel 3...Microphone safety (CPI1) box 4...Display i! 1 5. Internal storage device 6.
・Solenoid driver board 7・・Solenoid 8・・Hall IC (motion detection sensor) 9・・Shift register 10・・α column transfer data line 11・・Parallel input permission signal line 12・・Jacquard machine 13・・Electronic side Needle selection device 15...Horizontal needle tip 16...Horizontal needle opposite end l8...Horizontal needle sensor mechanism 19...Followed rod 2l...Permanent magnet (magnet) 22...Horizontal needle push back plate

Claims (1)

[Scope of Claims] 1. In an electronic jacquard device that outputs texture and pattern information of a textile using an electronic circuit and controls the warp of the textile using a mechano-electric transducer such as a solenoid, The signal data is stored even after it is output, and a motion detection sensor is arranged for each path through which the operation of each of the electromechanical transducers is transmitted to the warp, and each of the motion detection signals detected by the sensor is transmitted to the transmission path of which electromechanical transducer. The signals related to the same electromechanical transducer are compared with the stored actuation signal data and the data detected by the sensor, and the signals of the individual transmission paths are Operation inspection system 2 for an electronic Jacquard machine that determines whether the operation is correct or incorrect. In the above system, after the signal detected by the operation detection sensor is taken into a parallel input shift register circuit with a simultaneous input permission terminal, An operation detection circuit for an electronic Jacquard machine characterized by a circuit configuration in which data is sent in series to a data processing circuit.