KR950001806B1 - Process for examination, marking system in steel wire standard - Google Patents

Abstract

The system automatically performs hatching and marking of informations on the steel plates by detecting the width, length, thickness of input steel materials, comparing the values with real value and judging the standard. The system comprises information transmission/reception processing means for transmitting or receiving the information of the steel materials to the system sub-control section via a modem; standard detecting means for detecting the real size of the steel material moving on the conveyor; detection control means for controlling the detecting means; ink-jet printer means for recording the standard; marking and hatching means having a step motor, DC motor, pneumatic cylinder; digital data input/output section with respective channels.

Description

Detection, marking system and process of steel specification for wire rod

1 is an overall system configuration of the present invention.

2a, 2b is a signal flow diagram showing the operation of the system of the present invention.

3 is a signal flow diagram showing the operation of receiving steel information from the system sub-control unit of the present invention.

4 is a signal flow diagram showing the present invention transmitting job information to an ink jet printer and a stepping motor controller.

5 is a signal flow diagram for receiving measurement data output from the steel detection device of the present invention.

6 is a signal flow diagram for counting the quantity of steel material for wire rods when reversing the steel detection unit of the present invention.

7 is a signal flow diagram for counting the quantity of steel for wire rods when reversing the marking and hatching device of the present invention.

* Explanation of symbols for main parts of the drawings

1: Front Process Control Unit 10: Modem

10a: system sub-control unit 11a: system comprehensive control unit

11b: Data input / output unit 12: 8 port communication board

13a: length detection control section 13b: width detection control section

13c: thickness detection control unit 13d: stepping motor control unit

13e: IJP control unit 14g: sensor unit

14a: encoder 14b: laser sensor for width detection

14c: laser sensor for thickness detection 14d: stepping motor

14e: Marking ink jet printer 14f: Hatching IJP

14g: Other Sensors

The present invention relates to a process for detecting and marking the specifications of the steel for wire rods, in particular the steel information recording operation currently being performed manually for the steel sheet for wire rods to the pretreatment plant laser sensor, encoder, stepping motor , DC motor ink jet printer, pneumatic cylinder, etc., for automation by using the peripheral devices, system integration control unit, system sub-control unit for the detection of steel standards for wire rods and marking system and It is about the process.

Conventionally, after performing the pretreatment process, the operator checks the computational report and climbs the steel information recorder on the conveyor which continuously moves, and records each received steel material directly. This causes material loss due to misreading, process delay, and high M / H. There have been problems such as reduction in input and residue utilization.

An object of the present invention for solving the above problems is to provide a means for detecting the length, width and thickness of the steel while moving forward and backward the steel for the wire rod while the steel required for ship drying moves on the conveyor for pretreatment work. It is a system for automating the information recording and specification display work of real steel by using the present invention to provide a system and process for detecting and marking the specification of steel for wire rods to improve productivity and give reliability to products.

Referring to Figure 1, the configuration of the present invention will be described.

1 is a diagram showing the overall system configuration showing a control room in a pretreatment plant of the present invention, as shown in FIG. 1, based on a bar code information scanned during input of wire rod steel. Steel information transmission and reception processing means for receiving the relevant steel information from the database of the data processing and then transmitting to the system sub control unit 10a via the modem 10, and measuring the length of the real steel moving on the conveyor Upsolate rotary encoder (14a) for the measurement, Reflection type laser sensor (14b) for measuring the width of the steel, Triangulution type laser for measuring the thickness of the steel (triangulution type laser) Steel composed of steel detecting means composed of a senser 14c and length, width, and thickness detecting controllers 13a, 13b, and 13c, which are means for controlling the steel detecting means. Marking and hatching ink jet printers 14e and 14f and stepping motors for non-contact recording of steel information and standard information output from the system control unit 11a while the wire control means and the wire steel are transported on the conveyor. (14d), marking and hatching means composed of a DC motor, a pneumatic cylinder, a linear motion unit, and the like, the steel information received from the system sub-control unit 10a during the pretreatment of the steel, and the actual measured by the steel detecting means. Integrated control of the digital data input / output unit 11b and the entire system process, which are configured to input / output each channel so that accurate steel information marking and specification hatching can be performed based on the specification of the steel, and the command of transmitting and receiving information is performed. Information transmitted and received from the system integrated control unit 11a and the system sub-control unit 10a and the steel detection unit. It consists of a whole system processing means consisting of an 8-port communication board 12, which means for interfacing the information of the steel measured from the.

Referring to the process of the present invention configured as described in detail as follows. When the steels required for shipbuilding are loaded onto the conveyor for pre-treatment work, the barcode information of the steel is scanned and the input steel information is stored in the entire process control unit 1 installed outside the processing unit based on the barcode information. Extracted from the database of the file server and input to the system sub control unit 10a for transmitting and receiving steel information of the system. At the same time, the system sub control unit 10a checks whether the system comprehensive control unit 11a can receive the steel material information, and transmits the steel material information. The system comprehensive control unit 11a checks the whole system situation while the pretreatment is in progress, and receives measurement information of the steel specifications (length × width × height) input according to the control logic shown in FIGS. 2 to 7. When the conditions are established, the next step is to mark the steel information, and the hatching process according to the specification is automatically performed. On the other hand, the system control unit 11a, which plays a main control role in the system, is configured and includes a limit switch and a photo sensor for detecting the starting point of steel and capturing the starting point of the work so as to selectively control the work. sensor).

The steel length measurement method by the encoder 14a driven by the control of the length detecting control part 13a is combined with a shock-proof spring limit switch, and includes a pulse generating means in an idle roller shaft. By installing the rotary encoder 14a and rolling the idle roller in contact with the moving steel plate, the encoder is also rotated at the same rotational speed, and the encoder outputs a pulse corresponding to the rotational speed of the idle roller. The length of the iron plate is known.

The steel width measuring method by the laser sensor 14b driven by the control of the width detecting control unit 13b is provided with a laser sensor 14b and a high precision reflective cap above and below the steel, respectively, and the steel passes between the above devices. Since the laser light emitted from the laser sensor 14b is reflected by the reflective tape, the width of the steel can be known by calculating the time difference of the shadow caused by the specific object (steel) by time integration.

The steel thickness measurement method by the laser sensor 14c driven by the control of the thickness detecting controller 13c is scattered from the measurement object (steel material) by each laser sensor and a photo detector positioned above and below the steel. When the laser beam is focused on the photo detector through the light-receiving lens and the distance between the sensor and the measuring object is changed, the position of the beam focused on the photo detector is changed. Therefore, the thickness of the measuring object can be known by converting the changed signal into a distance. .

In detail, first, the input of the steel is detected by the limit switch 14g, whereby the laser sensor 14c detects the distance of the upper surface of the steel by the upper laser sensor as L, and by the lower laser sensor. If the distance to detect the lower surface of the steel is L and the length of the upper and lower laser sensor is d as d, the thickness t of the steel is calculated by the system integrated control unit 11a when the steel passes.

It can be expressed by the thickness of the steel.

Table 1 shows the contents of each channel and the assigned digital input / output signal on the digital input / output unit 11b to control the logic level when operating the system of the present invention.

2 is a signal flow diagram showing an embodiment of a system operating method of the present invention.

As described above, the system operating method of the present invention performs a head screen and an initialization step in step 30 as shown in FIG.

In this way, when the preparation step is performed and ready, the input signal is detected by the limit switch 14g for detecting whether or not the steel is received in step 31. When the input signal is detected, the conveyor 32 moves. If the check is stopped, the step 34 is performed in the unreceived state of the steel information, and the system sub-control unit 10a receives the steel information and checks the input signal again.

When the conveyor is in the advanced state, in step 33, the LSA signal, which is a signal for receiving measurement information from the steel detection device, and the LSB signal, which is a signal for transmitting job information to the marking and hatching device, are detected. In step 34 where LSA and LSB = 0, the steel material information stored in the system sub-control unit 10a is received, and is returned again using the special key function of step 38.

In step 35 where LSA = 1 and LSB = 0, a process for receiving measurement data output from the steel detection device (Fig. 5) is performed and returned.

In step 36 where LSA = 0 and LSB = 1, a process for generating a signal for transmitting necessary job information to the marking and hatching device including an inkjet printer and a stepping motor controller (Fig. 4) is returned. .

In step 37 where LSA and LSB = 1, a process of generating a signal for transmitting the job information of the steel material to the ink jet printer and the stepping motor controllers 13e and 13d (FIG. 4) is performed first. Subsequently, in step 39, a process for receiving measurement data of the corresponding steel material (figure 5 in the drawing) is performed, and then returned to check the input signal in step 31 again.

In addition, when the state of the conveyor is the reverse operation in step 32, in step 40 of FIG. 2B, the state of the LSE and LSF signals, which are the digital input / output signals allocated for each channel of the digital input / output unit 11b, is determined to move backward. Perform the routine of operation.

That is, the LSE signal is a signal for counting the number of reverse steel sheets in each steel detection unit, and the LSF signal is a signal for counting the number of reverse steel plates in the marking and hatching unit. A digital signal allocated for each channel on the data input / output unit 11b. If LSE, LSF = 0, the process is switched to step 41 and the process of receiving steel information from the system sub-control unit 10a (FIG. 1) is performed. In step 44, a special key function is performed. Is returned.

In the case where LSE = 1 and LSF = 0, step 42 is performed to count the quantity of steel for wire rods when the steel detecting unit is retracted (FIG. 6). In the case of LSE = 0 and LSF = 1, in step 43, a process of counting the quantity of steel for wire rods when reversing the marking and hatching device is performed (Fig. 7), and in the case of LSE and LSF = 1, 45), the process of counting the quantity of steel for wire rods when reversing the marking and hatching device part (Fig. 7) and the next step 46, the process of counting the quantity of steel for wire rods when reversing the steel detection device part (Fig. After returning to FIG. 6).

Hereinafter, a process will be described with reference to the accompanying drawings.

3 is a signal flow diagram illustrating an embodiment of a process for receiving steel material information for wire rods of a system sub controller of the present invention.

In step 50, the DTR is set by the system sub control unit 10a. In step 51, it is checked whether data is in a ready state, and in step 56, data is not ready.

In step 52, the steel data is read from the input / output port of the system sub controller 10a or the file is stored. When the data is read, the input steel information is stored in the steel information database.

In step 54, information input from the system sub controller is displayed, and in step 55, POINTO ++ is output. In step 56, it is checked whether information is input by a keyboard. When the information is input, in step 57, the information is processed using a special key, and information is not input from an external terminal device of the system sub-control unit. If not, the process moves to the next step 58.

In step 58, a predetermined time is set, and when the predetermined time is not reached, the process is switched to step 51. When it is detected that the predetermined time has passed, the process returns to the next step 59.

4 is a signal flow diagram showing an embodiment of a job for transmitting job information to the ink jet printer and stepping motor controller of the present invention.

In step 60, as an initial step, a command is received from the system sub control unit 10a to reset the DTR, and perform a preparation step of transmitting job information to the ink jet printer and the stepping motor controller 13d.

In step 61, the contents of point 0 and point 2 are compared. If point 0 is large, in step 62, the system integrated control unit 10a recognizes a signal LSB for transmitting work information to the marking and hatching device. Outputs a signal indicating that

In step 63, data is displayed, and in step 64, the steel specification and the standard are detected under the control of each control unit of the received steel.

In step 65, job information is generated by the processing of step 64 above.

The job information generated in step 65 is transmitted to the ink jet printer and the step 13e and the stepping motor controller 13d in step 66, and the transmitted information is stored in a database in the next step 67 in a file. In operation 69, a signal DO5 for marking and a signal DO6 for hatching are generated.

In other words, in step 67, the information file of the step is stored in the marking steel information database.

In step 68, point ++ is generated, and in step 69, all of the digital output signals DO1, DO5, and DO6 are turned off to end the transmission to the inkjet printer and stepping motor controller 14c, and the next step 70 Is returned.

When POINT 2 is large in the comparison step 61, the digital output signal DO4 is turned on to indicate that there is no marking and hatching operation information. When the signal DO4 from the system integrated control unit 11a is in the on state, the conveyor is stopped because there is no marking and hatching operation information.

In step 73, an alarm and an error message are output so that the status of step 72 is transmitted to the system comprehensive control unit 11a via the 8-port communication board 12 and the alarm user can recognize it. In step 74, DO5 and DO6, which are output signals for hatching and marking operations such as allocation signals for each channel on the digital input / output board, are turned off and output.

In step 75, a certain time delay is generated to receive work information.

In step 76, the digital output signal DO4 on the digital input / output board, which is a signal indicating that there is no marking and hatching operation information, is turned off.

In step 77, the operation information transmission to the ink jet printer and the stepping motor controller is completed and returned.

Figure 5 is a signal flow diagram showing an embodiment of the operation of receiving the measurement data output from the steel detection apparatus of the present invention.

In order to receive measurement data from the steel detecting device including the encoder 14a, the laser sensors 14b and 14c, and the steel discrimination limit switch, in step 80, the DTR is reset by receiving a command from the system sub controller 10a. At 81, the system integrated control unit 11b outputs a signal DO0 for turning off a signal for receiving measurement information from the steel information detecting device.

In step 82, the following steps of step 83 are performed to receive the measurement data output from the steel detecting device to the system sub-control unit 10a only when POINT 1 has the same value as POINT 10. 83), the steel length value measured from the steel detector is read, and in step 84, the width and thickness values are compared by the corresponding nth reading, and the reading is continued until they are the same. Calculate the average value of length, width, and thickness of steel.

The measured average value calculated in step 85 is stored in the steel information database (86). In step 87, the steel information of the current state is displayed, and in step 88, point 10 is output.

In addition, when POINT 1 and POINT 10 do not have the same value, the process is switched to step 89 so as not to receive the measurement data output from the steel detection device, and the process is performed as an end step.

In step 89, a point 1 signal is output, and in step 90, the signal DO0 indicating that the system comprehensive control unit 11a has recognized a signal LSA for receiving measurement information from the steel detection device is turned off. ) Off to channel 0 of the digital input / output means and returned in the next step (91).

Figure 6 is a signal flow diagram showing an embodiment for counting the number of reverse iron plate of the steel detection unit of the present invention.

In step 100, the DTR is reset from the system sub-control unit 10a to prepare for counting the number of iron plates at the time of conveyor retraction, and in step 101, the steel plate which is retracted from the steel detecting unit part to the third channel of the digital output means. DO2 is turned on to output a signal for turning off the signal LSE for counting the quantity, and in step 102 a POINT signal is generated.

In step 103, the current state of the amount of sheet metal sheeted by the monitor means of the system control unit 11a is displayed, and in step 104, the steel material is collected from the steel information data base DB together with the count of the steel for the wire rod. Take over the specifications and information and organize the files.

In step 105, all the work in step 104 is finished, and the system comprehensive control unit 11a turns off the signal DO2 for counting the quantity of steel for the wire rod when the steel detecting unit retracts and returns in step 106. do.

Figure 7 is a signal flow diagram showing an embodiment for counting the number of reverse plate sheet portion of the marking and hatching device of the present invention.

In step 110, the DTR is reset by the control of the system sub-control unit 10a, and in step 111, the DTR is allocated to channel 3 of the data input / output unit 116, and the system comprehensive control unit 11a reverses the marking hatching unit. A signal DO3 for turning off the signal LSF for counting the number of iron plates to be turned on is outputted, and in step 112, POINT 2 is outputted, and in step 113, an unshown monitor of the system integrated control unit 11a. By means of displaying the current state showing the quantity of steel wire rods when the marking and hatching device unit retracted, and in step 114 the steel information database that stores the steel information required for marking and counting of the steel rods for wire rods ( Input the designated number of the steel for steel rods counted in DB) to organize and save the file.

In step 115, the operation of step 114 is completed and the signal DO3 indicating that the system comprehensive control unit 11a has recognized the signal LSF for counting the quantity of the steel plate when the marking and hatching device unit is retracted is turned off. And return to step 116.

The present invention configured as described above is to detect the width, length and thickness of the steel in the order in which it is received along the steel pretreatment plant for the wire rod to determine the steel by comparing the steel information of the real steel and the system standard information information It plays a decisive role of automatically hatching and marking under the control of a comprehensive control unit. It is an excellent invention that simplifies the process and improves the productivity in the shipyard, which is responsible for the bulky work.

Claims (5)

Steel information transmission and reception processing means for transmitting and receiving the steel information through the modem to the system sub control unit for detecting the specification of the steel for wire rod, suitable steel standard detection means for moving real steel on the conveyor, and the steel detection means described above. Steel detection control means consisting of each control unit for detecting the length, width, thickness, which is a means for controlling the steel, and non-contact recording of steel information and standard information output from the system comprehensive control unit while the steel for wire rods are transported on the conveyor. Marking and hatching jet printer means, marking and hatching means consisting of step motor, DC motor, pneumatic cylinder, linear motion unit, digital data input / output unit formed by allocating channels with digital input / output signals, and the entire system process System integrated control unit and system sub control unit Emitter transmitting and receiving the information and, in the steel material detection means for interfacing the information of the steel material measured from the detection means 8 of the pre-existing steel material, characterized in that for consisting of a standard port communication board, marking system. 2. The length detecting means according to claim 1, in combination with a shock-proof spring and a limit switch, is provided with a rotary encoder 14a having a pulse generating means on an idle roller shaft to be brought into contact with an iron plate which advances the idle roller. The rolling system makes the encoder rotate at the same rotational speed and outputs a pulse corresponding to the rotational speed of the idle roller from the encoder. 2. The width detecting means according to claim 1, wherein the width detecting means is provided with a laser sensor 14b and an ultra-precision reflective tape, respectively, above and below the steel, and the laser light emitted from the laser sensor 14b while the steel passes between the above devices. The steel width detection system for wire rods characterized in that the time difference of the shadow caused by a specific object (steel) is computed by time integration because it is reflected by the reflective tape. The method of claim 1, wherein the thickness detecting means is configured so that the laser beam scattered from the measuring object (steel material) is focused on the photo detector through the light receiving lens by respective laser sensors and photo detectors positioned above and below the steel. The distance between the sensor and the measuring object is changed when the steel is received and the position of the beam focused on the photo detector is changed so that the signal can be converted into the distance. In the process of marking steel information on wire steel, initializing with head screen and detecting input signal by detecting limit switch 14g for detecting whether the steel is received or not can detect and mark steel standard. When the conveyor is stopped, the system sub control unit 10a receives the information of the steel again to check the input signal again, and detects the steel when the conveyor is in the forward operation. A process for receiving measurement data output from the steel detection device according to the state of the signal after determining the state of the signal for receiving the measurement information from the device and the signal for transmitting the operation information to the marking and hatching device, and an ink jet printer And a marking / hatching device composed of a stepping motor controller to generate a signal to transmit the necessary work information. When the process is carried out and the conveyor is in the reverse operation, the state of the signal for counting the number of reverse steel sheets and the number of markings and number of reverse steel sheets for the hatching device unit are determined. A process for receiving steel information from the system sub-controller 10a, a process for counting the quantity of steel for wire rods when the steel detecting apparatus is retracted, and a process for counting a quantity of steel for wire rods when the marking and hatching apparatus is retracted. Process for detecting and marking steel standards for wire rods, characterized in that for performing and returning.