KR0138815B1 - Electronic jacquard loom - Google Patents

Abstract

Mechanical jacquard looms are made of paper by using punching cards when weaving the jacquard looms. However, these conventional mechanical jacquard looms require thousands of pieces to create punching cards, which requires a lot of manpower, cost, and time. It was not possible to reuse it in case of reduced production speed and short life, and it was impossible to maintain maintenance costs and to automate the machine.

To this end, the present invention uses an electronic jacquard instead of a mechanical jacquard, and the electronic jacquard loom by the electronic pattern system has a large number of solenoids. By sending a given pattern to work, it saves time and manpower, speeds up production, and manages data life permanently.

Description

Electronic jacquard loom

1 is a block diagram of an electronic jacquard loom system according to the present invention.

2 is a detailed block diagram of the computer part of the present invention.

3 is a detailed block diagram of a keyboard and an LCD display portion according to the present invention.

4 is a detailed block diagram of a solenoid drive unit according to the present invention.

5 is a circuit diagram for detecting the disconnection of the solenoid

6 is a block diagram of another embodiment using the present invention

7 is a flowchart of the main software of the present invention.

8 is a flowchart showing a timer interrupt processing routine of the present invention.

9 is a flowchart showing a communication interrupt processing routine connected to the loader of the present invention.

10 is a flowchart of a program embedded in the loader according to the present invention.

* Description of the symbols for the main parts of the drawings *

1000: Computer 2000: Keyboard and LCD Display

3000: Loader 4000,5000: Solenoid Drive

6000,7000: Solenoid 8000: Power Supply

The present invention relates to a control apparatus for an electronic jacquard loom by an electronic pattern system. In particular, the electronic jacquard loom by an electronic pattern system has a large number (several hundreds to thousands) of solenoids, and thus the pattern information is stored in a storage device. The present invention relates to a control apparatus for an electronic jacquard loom which sends pattern information to a solenoid by means of a position detection signal of a mechanical part so that a given pattern is woven.

Conventional mechanical jacquard looms weaving textiles by using punching cards when weaving jacquard looms, but these conventional mechanical jacquard looms require a lot of manpower, cost, and time because they create thousands of punching cards. In addition, it was impossible to reuse when the production speed was reduced and the short life was impaired, and the maintenance cost and the machine automation were impossible.

In the present invention, by installing an electronic jacquard in place of a mechanical jacquard using a punching card in a mechanical jacquard loom, the pattern information is stored in a storage device, and the pattern information is sent to the solenoid by the position detection signal of the mechanical part so that the given pattern is woven. And by providing an electronic jacquard loom that electronically controls the operation management, the purpose is to be able to permanently manage the time cost, manpower saving, production speed increase and data life.

The control device of the jacquard loom can easily store and store the data desired by the user in the storage device for storing the pattern information, detect the alarm signal such as cut off during work, and output the pattern information. There should be a function of detecting the position, a self-diagnosis function to measure the disconnection of solenoids, a data protection function in case of power failure, and a function to show various information during operation to the user.

These functions are accomplished by the computer portion of the invention, its peripherals, and the software that drives them.

Now, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram of an electronic jacquard loom system according to the present invention. As shown in FIG. 1, a computer 1000, a keyboard and an LCD display 2000, and a pattern for enabling a conversation with a user are provided. Loader (3000) for transmitting information to the computer, solenoid driving unit (4000), (5000) and solenoid (6000), (7000) including the failure detection and test function, and a power supply unit for supplying power to the solenoid ( 8000) and a back plane bus (BPS) for connecting signals with other hardware.

FIG. 2 is a detailed block diagram of a computer part of FIG. 1, wherein the computer 1000 includes a central processing unit 10, a ROM, a RAM, a pattern information storage memory 20, and a memory. The unit consists of an input / output unit 40, a bus driver 50, and a backplane 60.

The central processing unit 10 uses a 16 / 32-bit microprocessor to process massive pattern information quickly.

The microprocessor has a 16-bit data bus and a 24-bit address bus, and can store about 15 (Mbytes) of pattern information except for a driving program.

The storage section includes a ROM, a RAM, and a memory for storing pattern information 20.

The ROM is used for storing software for implementing the functions of the device, and also stores a simple test pattern.

The RAM is used to store the state of the device and the variables used by the program.

The pattern information storage memory 20 may be configured as a RAM or a ROM as a storage device for storing a pattern to be woven.

RAM and pattern information memory are backed up by battery to protect the contents in case of power failure.

The input / output device of the computer includes two serial communication devices, RS232C interfaces 70 and 80 and 8-bit contact input / output devices, respectively.

One serial input / output device is used for the keyboard / LCD display and RS232C interface of FIG.

The contents of the keyboard are received and the information to be displayed on the LCD display is transmitted.

The other is connected to the loader and used to receive the electronic pattern.

The received pattern information is stored in the pattern information storage memory.

And the contact input is used to input the cutting information that occurs when we work, such as weft, slope, and this information is displayed to the user through the LCD.

There is also a contact output for driving the loom for synchronous operation with the loom during weaving.

All contact inputs and outputs used optical couplers.

The bus drive is the part that amplifies and exports each computer signal to the expanded peripheral.

The timer 90 is used for sampling time generation of the input signal and counting the running time of the loom.

3 is a detailed block diagram of the keyboard and LCD portion of the present invention. As shown in FIG. 3, an independent computer system using an 8-bit microprocessor 100 is inputted. The RS232C interface 130 is input by inputting a state of the keyboard. It transmits to the computer system of FIG. 2 through a serial input / output device using a standard and shows the received information to the user through the LCD display unit 140.

The device may be remote from the computer device and therefore advantageous to communicate using the RS232C interface 130 standard.

4 is a detailed block diagram of the solenoid driving unit according to the present invention, which is a part for driving a solenoid 150, 160 ... 170 _N according to the electronic pattern information so that a given pattern is woven. .

However, because a large number of solenoids have to be driven, the most probable failure is required, and rapid failure detection is essential.

This part consists of a flip-flop, an optocoupler, a Darlington transistor, and a disconnect detector that can store data.

FIG. 5 is a circuit diagram of detecting whether the solenoid is disconnected. As shown in FIG. 5, the D-type flip-flop receives a signal transmitted from the computer 1000 system of FIG. 1 through the backplane bus (BPS). is stored in the (FF ₁₎ and applied to the solenoid 220 is converted into a signal of 24V, and finally through the Darlington transistor (TR ₁₎ through this sinhoeun optical coupler 210. the

When the solenoid 220 is in normal operation, current flows to the collector side of the transistor TR ₁ , and therefore, current also flows to the emitter side.

At this time, about 0.7V across both ends of the diode (D ₁ ), the voltage is filtered by the resistor (R ₇ ) and the capacitor (C ₁ ) and compared with the reference voltage 0.3V.

Accordingly, the output terminal of the inverter INT becomes low (L) and the low signal is transmitted to the computer system 240 whether the solenoid is disconnected through the optical coupler 230.

If the solenoid is disconnected, no current flows through the collector of the transistor TR ₁ , so that the voltage at both ends of the diode D ₁ is also 0V.

Since the voltage is lower than the reference voltage 0.3V, the output of the inverter INT becomes high (H), thus the optocoupler 230 is turned off and the sense voltage becomes high, so that 1 is transferred to the computer system 240. do.

It is not economical to install all disconnection detectors for each solenoid, so the emitters of the eight Darlington transistors are connected to one another and a sensing device is installed there.

However, during the test, only one transistor is turned on and the rest is turned off to detect disconnection.

In addition, the resistors R ₆ at both ends of the current sensing diode D ₁ are used to increase the detection speed by rapidly discharging the charge stored in the diode D ₁ .

Therefore, Figure 6 is a block diagram of another embodiment using the present invention, the power is connected to the AC motor 250 through an inverter (INT ₁ ) that can vary the weaving speed through the control box.

This AC motor 250 operates the mechanism part of the whole loom.

Computer system 240 may start or stop this AC motor 250.

At start-up, the computer is notified of the readiness via a machine ready signal.

In this state, the position sensor when operating with the loom mechanism 260 informs the computer 280 of the jacquard loom controller of the on / off time of the solenoid 270.

The computer 280 then inputs this signal to drive the solenoid 270 according to the electronic pattern in the memory.

While the solenoid 270 is in operation, the cutting state is always input through the cutting sensor, and the user is notified through the lamp and the LCD display according to the cutting type.

In addition, to prevent overheating of the solenoid 270 is always monitored through the overheat sensor of the solenoid, and during overheating stops the machine operation and informs the user.

Since a large number of solenoids are driven, overheat protection is essential.

In addition, when the electronic pattern needs to be corrected or changed, the electronic pattern can be directly transmitted to the storage device in the jacquard loom controller 280 through the loader 290.

7 is a flowchart of the main software of the present invention, in which there are two types of software embedded in the electronic pattern jacquard loom controller and those built into the loader.

Embedded in the jacquard loom controller is to implement the functionality of the jacquard loom, and embedded in the loader is to create a protocol for the control and data transfer.

7 shows a flowchart of the program in the jacquard loom controller.

This is a flowchart of the main program.

At the same time, the initialization of the hardware and software 7a takes place.

In this process, check the voltage status of the memory protection battery.

There is information to be displayed on LCD and it transmits data to keyboard / LCD device through serial communication.

After the key is input (7c), the process 7e for the key is performed.

If there is an error signal (7a) such as an error occurring inside the program, a hardware error, or a truncation input, the error is processed and the process goes back to 7b.

This loop continues.

Therefore, Figure 8 is a flowchart showing the timer interrupt processing routine of the present invention, wherein when the main program is executed, the timer requests an interrupt from the central processing unit, where the interrupt processing routine inputs the state of the position sensor and sends data to the solenoid. When it is determined that the send time is 8a, the weaving pattern is read from the pattern memory and output to the solenoid.

In addition, the clock is operated (8c) to prepare for use in the part where time is needed.

9 is a flowchart showing a communication interrupt processing routine connected to the loader according to the present invention. When receiving the transmission start 9a signal from the loader, the internal state is changed to receive information from the loader. (9c), (9d)

If an error occurs during transmission, retries are attempted as many as retries (9e). If the number is exceeded, the error is treated as an error. (9f)

10 is a flowchart of a program embedded in the loader according to the present invention, which first converts electronic pattern information into a form stored in a jacquard control apparatus (10a), and then starts transmission using serial communication to the jacquard control apparatus. . (10b)

At this time, if an error occurs, retries are performed as many times as retries (10c). If the error is exceeded, a transmission failure (10f) is considered.

Terminate when all data is sent. (10d)

According to the present invention operated as described above, by using the electronic jacquard instead of the mechanical jacquard, the pattern information is stored in the storage device, and the pattern information is sent to the solenoid by the position detection signal of the mechanical part so that the given pattern is woven. In other words, it has the effect of permanently managing production speed increase and data life.

Claims (2)

Computer 1000, a keyboard and LCD display 2000 to enable a conversation with the user, a loader 3000 for transmitting pattern information to the computer, a solenoid driving unit 4000 including a failure detection and test function, (5000) and the solenoid (6000), (7000), and a control device for an electronic jacquard loom, characterized in that consisting of a power supply 8000 for supplying power to the solenoid. The method of claim 1, The computer 1000 includes a central processing unit 10, a ROM, a RAM, a memory for storing pattern information, a memory unit, an input / output unit 40, a bus driver 50, and a back. Control device for an electronic jacquard loom, characterized in that consisting of a plane (60).