KR100786512B1 - Apparatus for storing thickness and width results of coil and the method for coil division using the storing information - Google Patents

Abstract

In the present invention, during the continuous annealing operation, in the process of dividing the coil according to the demand of the order, the thickness and thickness of the coil to enable the optimally divided production according to the order weight range when the thickness and width of the material is mixed A coil splitting method using an explosive storage device and its storage information.

The present invention measures the thickness and width of the coil uncoiled by the uncoiler to check the defective part of the coil by measuring the side thickness gauge and the width meter, and after winding the winding machine after checking the measured value of the coil through the exit thickness meter and width meter And a coil thickness and width storage device for indicating a split position of the coil through an indicator, comprising: an entrance record storage unit configured to store an actual measurement value of the side thickness gauge and the width meter on the uncoiler side and to be connected to the indicator; A product performance storage unit for storing measured values of the exit thickness meter and the width meter of the winding machine and connected to the indicator; Characterized in that configured to include.

Coil, uncoiler, process computer, process computer, controller

Description

Apparatus for storing thickness and width results of coil and the method for coil division using the storing information}

1 is a schematic view showing a general continuous annealing process.

2 is a configuration diagram of a coil splitting method using a conventional coil thickness and width storage device and the storage information thereof.

Figure 3 is a schematic view of the thickness and width storage of the coil of the present invention.

4 is a monitor display state diagram of the present invention.

5 is a flowchart of a coil splitting method according to the present invention;

Figure 6 is a graph according to one embodiment of the coil splitting method of the present invention.

<Explanation of symbols for main parts of drawing>

100: uncoiler 110: coil

250: test bench 260: flying sheer

270: winder 271: speedometer

300: process computer 210410: A / D converter

330: controller 430, 440: information monitor

The present invention relates to a coil thickness and width storage device and a coil splitting method. Particularly, in the process of splitting and producing a coil in accordance with the demand during the continuous annealing operation, the thickness and width of the material is ordered when the defective part is mixed. The present invention relates to a coil thickness and width storage device and a coil splitting method using the storage information for optimally split production according to a weight range.

Generally, the continuous annealing process releases the coil 110 from the uncoiler 100 as shown in FIG. 1, and the front end portion 222 of the coil 110 that is loosened is divided in the flying shear 260 and then wound up 270. And the rear end 221 is welded by the front end of the next trailing coil and the welder 220 to continue.

At this time, the driver refers to the deviation value of the entrance thickness gauge 200 and the entrance width measurement 210 before welding, and performs the continuous work by cutting out the defective part when checking the defective part of the line and the rear end.

The thickness and width defects are mainly caused by the failure of the rolling conditions or the roll replacement in the cold rolling line, which is the preliminary process, and the defects may be mixed at any time according to the cold rolling operation.

The defective part mixed in the middle of the coil is put into a continuous annealing process, which is a post process, and the uncoiler 100 of the continuous annealing process is subjected to a cold rolled large-sized coil and the winding machine 270 demands the demand. It is essential to split the coil to a suitable size within the order-to-order range without exceeding thickness and width tolerances.

FIG. 2 illustrates a conventional concept of dividing instructions in which the coil uncoiled by the uncoiler 100 falls within the order packaging unit of the demand price. First, the order thickness, order width, thickness tolerance upper and lower limit range, width tolerance upper and lower limit range, order interruption range, all process work weight, all process work length, etc. This process computer (SCC, 300) is transmitted.

The process computer 300 receiving the coil information transmits the divided positions to the controller PLC 330 collectively using the received length information for the coil 110 input to the line in comparison with the order interruption range. Receiving the split information, the controller 330 receives the speedometer 271 value of the winder from the time when the front end 222 of the coil 110 is drawn into the winder 270, and counts the coil length. At the point where the cumulative length is the same as the dividing position set from the process computer 300, the flying shear 260 is operated to divide.

On the other hand, in the inspection table 250, in addition to the surface defect inspection of the coil 110, which proceeds, in particular, the exit thickness meter 230 and the exit width meter (inside the inspection platform 250) to prevent the mixing of the thickness defect and the width defect ( When the defective part is mixed by checking the measured value of 240, the whole part of the coil 110 is wound as it is without performing division at a predetermined dividing position by the controller 330 of the indicating unit, and then sent to the recoiling line to sort the defective part. Is carried out.

In addition, the measured value measured by the exit thickness meter 230 and the width meter 240 is stored in the cabinet after recording with ink on the recording sheet by the analog recorder 251, and then used to find the recording sheet if necessary.

At this time, the conventional order weight division method is the weight received from the process computer 400 of the indicating unit, regardless of the location of the thickness and width defective portion, and the division position is determined in advance by the order weight demand demand, so the selection operation of the defective portion Because this is impossible, the final production cannot be performed and the screening work is sent to the recoiling line, which is the screening process for defective parts, which causes cost increase and delay in delivery.

In addition, the method of recording the thickness and width results on paper and storing them is difficult to track and confirm the location of the defective part, and must be replaced with a new recording paper every time after using the recording paper. There is a problem that requires a lot of time to find.

On the other hand, as a way to solve the above problems, when the measured value of the thickness gauge 230 is out of the order thickness range of the demand price, the line is automatically stopped with an alarm, and the device for displaying the coil length at this time Although it has been proposed, it is possible to simply stop the line at the current position of the defective part, and even if the defective part is selected by dividing the defective part, it is not confirmed whether the defective part of the coil to be wound on the winding machine 270 of the indicator part is not confirmed in the future. Can not be optimally selected according to the ordered weight range required in this case, most of the coil is required to sort the recoiling line in this case, there is a problem that leads to a product delivery delay phenomenon.

The present invention has been made to solve the above-mentioned problems of the prior art, the actual measured value of the coil measured in the entrance and exit thickness meter and the entrance and exit width meter in each information storage computer to process and store as digital data This is provided to the driver through the guidance monitor, and in particular, the position of the defective part of the thickness and width of the coil is transmitted to the process computer for each section, so that the coil can optimally sort the defective part according to the demand weight range through the process computer. An object of the present invention is to provide a coil splitting method using a thickness and width storage device and its storage information.

Coil thickness and width storage device according to the present invention for realizing the above problem is to measure the thickness and width of the coil uncoiled by the uncoiler through the thickness gauge and the width measuring instrument to check the defective part of the coil, the exit thickness gauge And the coil thickness and width record storage device which checks the measured value of the coil through a width measuring device and winds it up through a winder, and indicates a split position of the coil through an indicator. An entrance record storage unit for storing the measured value of the measuring unit and connected to the indicator unit; A product performance storage unit for storing measured values of the exit thickness meter and the width meter of the winding machine and connected to the indicator; Characterized in that configured to include.

In addition, in the coil splitting method using the thickness and width of the coil storage information according to the present invention, in the coil splitting method using the thickness and width storage information of the coil, the thickness and width of the coil uncoiled by the uncoiler is stored in A first step of detecting by a thickness measuring device and a width measuring device, and processing analog data of the detected measured value as a digital signal by an A / D converter and storing it as a computer; A second step of, after the first step, the computer trends the performance data collected through the A / D converter in a guide monitor in real time and stores the result data on a hard disk; The thickness and width of the coil wound on the winder after the second step is detected by the thickness meter and the width meter of the product performance storage unit, and the analog data of the measured actual value is processed by the A / D converter as a digital signal and stored in a computer. Step 3; A fourth step of, after the third step, the computer trends the performance data collected through the A / D converter in real time on a guide monitor and stores the result data on a hard disk; A fifth step of comparing the thickness and width data of the coil collected in real time by the computer of the entry recorder after the fourth step with the upper and lower limit of the thickness required by the process computer and the upper and lower limit ranges; A sixth step after the fifth step, by the process computer, determining a split position of the coil in comparison with the demand order of the coil and transmitting it to the controller; A seventh step after the sixth step, wherein the controller performs the division by operating the flying shear at a point where the length of the coil wound around the winding machine is the same as the division position received from the process computer; Characterized in that consisting of.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a configuration diagram of the thickness and width storage device of the coil of the present invention, Figure 4 is a monitor display state diagram of the present invention, Figure 5 is a flow chart of the coil splitting method according to the present invention.

In addition, Figure 6 is a graph according to an embodiment of the coil splitting method of the present invention, the storage device is largely stored in the coil thickness and width measurement value of the uncoaler side, and the entrance record storage unit connected to the indicator, The coil thickness and width measurement value of the winding machine side are stored, and the product performance storage part connected to the said indication part is included.

As shown in FIG. 3, the entrance recorder receives the analog data of the entrance thickness gauge 200, the width gauge 210, and the uncoiler 100, and converts the analog data into digital data 310. ) Is connected to the dimension information storage computer 320, the information of the A / D converter 310 is displayed through the coil thickness / width performance guide monitor 440, the dimension information storage computer 320 Is connected to the indicating unit which transmits and receives coil information to each of the storage units and compares the received defective unit information to indicate a split position.

As shown in FIG. 3, the product recorder includes an A / D converter 410 for converting analog data of the exit thickness gauge 230 and the width measurer 240 into digital data. The information of the A / D converter 410 is displayed through the coil thickness / width performance guide monitor 430, and the dimensional information storage computer 420 is connected to the indicating unit.

On the other hand, the coil splitting method using the thickness and width of the coil storage information of the present invention is made through the apparatus of the present invention configured as described above, it will be described as follows.

The measurement result storage unit detects the thickness and width of the coil 110 released from the uncoiler 100 by the thickness measuring unit 200 and the width measuring unit 210, and the analog data of the measured actual value is measured by the A / D converter 310. Is processed into a digital signal and stored in the computer (320). In addition, the analog speed signal of the uncoiler 100 is stored in the computer 320 through the A / D converter 310 in order to know the length of the coil 110 advanced from the uncoiler 100.

At this time, when a new coil is introduced into the uncoiler 100, the process computer 300 which has received the coil information from the process computer 400 transmits the coil information to the computer 320. As shown in FIG. 4, the information of the coil includes the coil number 440h, the demand order thickness 440k, the upper and lower tolerance tolerances 440d and 440e, and the upper and lower limit of the order width 440l and the demand. Tolerances 440f and 440g.

In the computer 320, the performance data collected through the A / D converter 310 is trended in real time to the guide monitor 440 and simultaneously stored in the hard disk of the computer 320. An example of the real-time trend of the guide monitor 440 will be described with reference to FIG. 4, and the accumulation length 440i is represented by calculating the speed 440m information of the uncoiler 100 as a time function. When calculated, the accumulated weight 440j is calculated by multiplying the measured thickness 440b by the specific width 440c by the specific gravity. The calculation formula of the accumulated weight 440j is as follows.

Accumulated weight (440j) = T Avg × W Avg × G × k

T Avg = average of actual thickness 440b, W Avg = average of actual width 440c

G = specific gravity of iron (7.85), k (constant, correction value)

Whenever the accumulation length 440i exceeds 0.1m, the speed 440a, the thread thickness 440b, and the actual width 440c are displayed as one point, and the points and points are connected by a line to be stored and trended. The file name of the data is updated every time the coil number 440h received from the process computer 300 is changed for easy retrieval, and the user can inquire the data stored at the file name input at any time. At the same time as the coil number 440h is updated, the demand of the corresponding coil is changed, and the accumulation length 440i is also initialized to 0m.

The product performance storage unit detects the thickness and width of the coil 110 wound on the winder 270 in the thickness measuring unit 230 and the width measuring unit 240, and the analog data of the detected actual value is the A / D converter 410. ) Is processed into a digital signal and stored in the computer 420. In addition, in order to know the length of the coil wound on the winding machine 270, the analog speed signal of the winding machine 270 is stored to the computer 420 through the A / D converter 410.

At this time, when a new coil is introduced into the winder 270, the information of the coil is transmitted from the process computer 300. The information of the coil is the same coil number as the entry recorder, the order thickness and the upper and lower tolerance of the order, and the upper and lower tolerance of the demand. In the computer 420, the performance data collected through the A / D converter 410 is trended in real time to the guide monitor 430 and simultaneously stored in the hard disk of the computer 420.

The trend method of the guide monitor 430 is the same as the guide monitor 440 of the entry recorder, and the file name of the stored data is updated each time the coil number received from the process computer 300 is changed to facilitate retrieval. You can search the saved data at any time by entering the file name.

Meanwhile, the operation of the indicator of the present invention will be described. First, the thickness 440b and the width 440c data collected in real time from the computer 320 of the entry recorder are always higher than the upper and lower required thicknesses 440d and 440e received from the process computer 300. When it is out of the order range compared to the required width upper and lower limit ranges (440f and 440g), the accumulated length 440i and the accumulated weight 440j at this point are set in the internal memory variable of the computer 320 and then the process computer ( If the section out of the order range is continuous, send only the first out-of-range section, and then, when the section within the order range is confirmed, the over-order range is finally set in the internal memory variable and then the process computer ( 300).

Subsequently, the process is repeated until a new coil number is received from the process computer 300. When new coil information is received from the process computer 300, the accumulated length 440i and the accumulated weight 440j are finally set in the internal memory variable, and the final set information is transmitted to the process computer 300. At this time, the internal memory variable is stored. After the values are all initialized to 0, the range check is repeated for the new coil number.

On the other hand, the process computer 300 receiving the set value from the computer 320 determines the split position compared to the demand of the order of the coil and transmits it to the controller 330, and finally receives the final set information of the coil The divided position is transmitted to the controller 330. The controller 330 receiving the split position performs the split by operating the flying shear 260 at a point where the length of the coil wound around the winding machine 270 is the same as the split position received from the process computer 300.

Here, the process of processing the position set information of the defective part received internally from the computer 320 by the process computer 300 will be described with reference to FIG. 5A. When logic is activated in the process computer 300, the initial section weight is initialized (10), and the defective part set information is received from the computer 320 (20). If there is no set information from the computer 320, the process continues to wait, and if there is set information, the section weight and the section length are calculated based on the set information (30). The calculation of the interval weight and the interval length calculates the difference between the cumulative weight and the length of the newly received set information from the cumulative weight and the length of the current set information.

Segment weight = cumulative weight of newly received set information

Section length = cumulative weight of newly received set information-current cumulative

In this case, when the set information is first received, 0 is subtracted from the newly received cumulative weight by the section weight and length initialization logic 10, and thus the received cumulative weight itself. When the section weight and the section length are calculated, the process proceeds to logic 40 for determining the split position.

As shown in FIG. 5B, first, the division number is set to two for the determination of the division position (41), the division weight is divided by the division number (42), and the upper limit of the order weight of the calculated value (W) and the demand value A comparison is made (43).

If the calculated value (W) exceeds the upper limit of the order weight, add 1 additional number of divisions for judging the number of divisions (44); if the calculated value (W) is lower than the upper limit of the order weight, compare the calculated value (W) with the lower limit of the order weight. (45).

If the calculated value W is equal to or more than the lower limit of the order weight, since the genuine product included in the order weight range of the demand price is possible, the section length is equally determined by the number of divisions (the number of divisions of 42). For example, when the previous cumulative length is 1000 m and the cumulative length of newly received set information is 1900 m, the section length is 900 m by the section length calculation logic 30. At this time, when the number of divisions (the number of divisions of 42) is 3, the division positions 1,2 and 3 determined by the equal distribution 46 become 1300, 1600 and 1900 m, respectively.

Division position 1 = 1000 + 900/3, Division position 2 = Division position 1 + 900/3,

Split position 3 = Set information accumulation length

If the calculated value W is less than the lower limit of the ordered weight, it is smaller than the ordered weight range, so that one divided number is reduced (47), and the section length is equally divided by the divided number (the divided number of 47). For example, if the upper limit of the order weight is 5500 kg, the cumulative weight and length of the previous set are 13000 Kg, 1000 m, and the cumulative weight and length of the newly received set information are 25000 kg and 1900 m, respectively, the section weight is calculated as the section weight. The logic 30 is 12000 Kg and the section length is 900 m by the section length calculation logic 30. At this time, if the number of divisions 47 is 2, the division positions 1,2 and 3 determined by the division determination process 48 are 1413, 1825 and 1900 m, respectively.

Division position 1 = 1000 + (5500 × 900/12000),

Division position 2 = division position 1 + 900 + (5500 × 900/12000),

Split position 3 = Set information accumulation length

This process is to produce the remaining part of the coil by dividing the coil as much as possible the upper limit of the order weight, if the demand cannot be produced in a certain amount within the order weight due to the defective part of the coil.

In this way, when the divided position is determined for each section, the divided position is transmitted to the PLC 330 (49), and it is determined whether it is the final set information from the computer 320 (50). If not, go to step (20) waiting for new set information.

Hereinafter, the present invention will be described in more detail with reference to Examples.

FIG. 6 illustrates the conventional dividing standard and the dividing standard of the present invention according to each situation of the actual thickness trend 440b measured online. The lower order weight of the demand value received from the process computer 400 is 7000 Kg, the upper limit weight of the order is 10000 Kg, the length of the material is 1390 m, the weight of the material is 26150 Kg.

6A shows a case in which there is no thickness defect section, in which the thickness of the coil unrolled from the uncoiler 100 is within the upper and lower order thickness limits of the demand (440d and 440e) over the entire periods 221 to 222. In this case, it can be seen that the conventional dividing instruction positions A1, A2 and A3 and the dividing instruction positions B1, B2 and B3 according to the present invention are the same. The sections A1, A2, and A3 are based on a conventional method, and since the total length of the material is 1390 m and the demand is in the order weight range of 7000 to 10000 Kg, the division weight instructed to the controller 330 is required by dividing the material weight 26150 Kg exactly three times. The positions are 463,927 and 1390 m respectively.

In the case of Example 1, the same result is obtained also by the present invention. Since there are no defective parts over the entire section, the final set information, cumulative length 1390 m and cumulative weight 26150 Kg, is received from the computer 320 at the last part 222 of the coil. The division results in an even distribution instruction (see Table 1).

However, Example 2 of Figure 6b can see the need and effect of the present invention. Example 2 shows a case where there is a thickness defect in the middle of the coil. In this case, the conventional division instruction is to divide the A1 section 500, the A2 section 501, and the A3 section 222 as in the first embodiment. Is directed. This instruction method is a genuine production up to the section A1, but because the defective part is mixed in A2, the defective part cannot be selected. In most cases, the entire section A2, A3 is wound around the winding machine 270 without division and sent to the recoiling line.

Although it is possible to sort from the first defective point 502 of the A2 section to the end point 503 where the defective part ends, in this case, the operator cannot make a division judgment because the defective part is not mixed in the B3 and B4 sections to be checked in the future.

In the method according to the present invention, the set information is received from the computer 320 at the first defective point 502, and since the cumulative weight is included in the order weight range, the genuine point is produced in this section B1, and the defective part ends. Since the set information is received from the computer 320 at 503, the corresponding section B2 is rejected and the set information is received from the computer 320 at the last point 222 of the coil after the point 503 at which the defective part ends. As a result, a split position is determined at points 504 and 222 in which the entire sections B3 to B4 are equally divided into two divisions, thereby enabling genuine production for sections B3 and B4 where demand is included in the hydrologic weight (see Table 2). ).

According to the coil thickness and width storage device of the present invention as described above and the coil splitting method using the storage information thereof, the coil thickness and width measurement values are always stored in a computer, and the stored information is always displayed to the driver through a monitor. By providing, it is easy to determine and search in real time, and there is no unnecessary effect of a separate recording sheet and its replacement.                     

In addition, since the most optimal splitting operation can be performed on the coil in which the thickness and width defects are mixed, there is an effect of minimizing a separate recoiling operation for sorting out defective parts and improving workability.

Claims (4)

Measure the thickness and width of the coil uncoiled by the uncoiler through the entrance thickness gauge and the width gauge to check the defective part of the coil, check the measured value of the coil through the exit thickness gauge and the width gauge, and then wind up the winding machine. In the coil thickness and width storage device indicating the split position of the coil through, An entrance record storage unit for storing the measured values of the entrance thickness gauge and the width gauge on the uncoiler side and connected to the indicator; A product performance storage unit for storing measured values of the exit thickness meter and the width meter of the winding machine and connected to the indicator; Thickness and width storage of the coil, characterized in that configured to include. The method of claim 1, The entrance recorder includes an A / D converter for receiving analog data of the entrance thickness gauge, width gauge, and uncoiler, converting the analog data into digital data, a computer for storing dimension information connected to the A / D converter, and the A / D converter. And a coil thickness / width performance guidance monitor on which information of the D converter is displayed. The method of claim 1, The product performance storage unit displays an A / D converter for converting analog data of the thickness meter and the width gauge into digital data, a computer for storing dimension information connected to the A / D converter, and information of the A / D converter. And a coil thickness / width performance guide monitor. In the coil splitting method using the thickness and width of the coil storage information, A first step of detecting the thickness and width of the coil uncoiled by the uncoiler in a thickness measuring unit and a width measuring unit of the entrance record storage unit, and processing analog data of the detected measurement value as a digital signal in an A / D converter and storing it in a computer; A second step of, after the first step, the computer trends the performance data collected through the A / D converter in a guide monitor in real time and stores the result data on a hard disk; The thickness and width of the coil wound on the winder after the second step is detected by the thickness meter and the width meter of the product performance storage unit, and the analog data of the measured actual value is processed by the A / D converter as a digital signal and stored in a computer. Step 3; A fourth step of, after the third step, the computer trends the performance data collected through the A / D converter in real time on a guide monitor and stores the result data on a hard disk; A fifth step of comparing the thickness and width data of the coil collected in real time by the computer of the entry recorder after the fourth step with the upper and lower limit of the thickness required by the process computer and the upper and lower limit ranges; A sixth step after the fifth step, wherein the process computer determines the split position of the coil in comparison with the demand of the ordered coil and transmits it to the controller; A seventh step after the sixth step, wherein the controller performs the division by operating the flying shear at a point where the length of the coil wound around the winding machine is the same as the division position received from the process computer; Coil splitting method using the thickness and width of the coil storage information, characterized in that consisting of.

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