KR100419640B1 - Method of controlling plate transfer using magnet crane - Google Patents

Abstract

The present invention relates to a heavy plate product transfer control method using a magnet crane, and more particularly, the magnetic crane used in the case of wearing, transporting and releasing a heavy plate product produced in a heavy plate factory, The present invention relates to a thick plate product transfer control method using a magnet crane to automatically transfer control according to a transfer position or the like.

To this end, the thick plate product transfer control method using the magnet crane according to the present invention is (a) when the heavy plate product arrives in the positioning zone of the line roller table, select the transfer according to the destination of the heavy plate product and then select the heavy plate product with the selected transfer (B) when it is determined that the heavy plate product loaded in the transfer has been transferred to the transfer position zone, the transfer of the thick plate product in the transfer position zone to the yard map or the offline roller table according to the offline work situation, The thick plate product transferred to the offline roller table in the step (b) performs the corresponding offline work, and when the offline work is completed, the yard depends on whether there is a heavy plate product being transferred to the receiving zone of the receiving line roller table. Transporting to a map or receiving line roller table.

Description

Thick plate product transfer control method using magnet crane {METHOD OF CONTROLLING PLATE TRANSFER USING MAGNET CRANE}

The present invention relates to a heavy plate product transfer control method using a magnet crane, and more particularly, the magnetic crane used in the case of wearing, transporting and releasing a heavy plate product produced in a heavy plate factory, The present invention relates to a method for controlling the transport of a heavy plate product using a magnet crane that enables automatic transfer control according to a condition according to a transfer position.

In general, the conventional method of receiving, transporting and releasing heavy plate products using a magnet crane includes a manual operation method in which the operator manually operates the magnet crane and a maximum number of sheets that the magnet crane can transfer without the driver boarding the magnet crane. There is a method of automatically transferring the thick plates of the same bundle unit.

At this time, in the case of the manual work method, when the driver boarding the magnet crane is transferred to the roller table of the wearing line, the crane is moved to the position of the heavy plate and then the magnet of the corresponding grab is moved according to the length of the transferred heavy plate. At the same time, depending on the number of thick plates to be transferred, the amount of current applied to the magnet is added or subtracted to lift the thick plate product. At this time, after confirming the number of heavy plate products lifted by the magnet on the ground, and notifying the driver of the crane by radio of the transport position of the heavy plate product, the driver moves the crane to the corresponding transport position and moves to the designated position. The heavy plate is put down. When the heavy plate product is transferred to the designated position, the number of signals on the ground completes the transfer operation of the heavy plate product by performing information processing on the product just transferred from the terminal.

On the other hand, in the case of the conventional automatic transfer method, instead of the full automatic control, when lifting the heavy plate products through the crane, by lifting and transporting the number of heavy plate products consistently as a unit of a bundle as possible with the maximum capacity of the crane, It was not possible to control the number of plated heavy plate products.

Therefore, in the conventional method for transporting heavy plate products, the manual work method requires the number of signals waiting on the ground to check the number of drivers and heavy plate products to drive the crane, and not only the personnel requirement due to additional manpower is generated. There is a problem that repetitive work and work delay occurs in the process of processing the transport information manually. In addition, in the case of the automatic transfer method, it is impossible to control the number of transfers of heavy plate products, so it is not possible to stack them on the yard. Logistics costs and congestion occurred because there was a problem.

Therefore, the present invention has been made in order to solve the above-mentioned problems, the purpose is to use the magnet unmanned crane, the automatic setting of the magnet by the length and width of the thick plate product, the number of plates according to the transfer form, the number of plate production, the transfer of heavy plate products To provide a method for transporting heavy plate products using a magnet crane that can automatically receive, transport and ship heavy plate products in the shortest time without congestion by automatically performing location recognition, filing determination based on the results of flaw detection and calibration. It is.

1 is a block diagram showing a schematic configuration of a magnet crane drive control system for implementing the present invention.

Figure 2 is a schematic side configuration diagram of a magnet crane for implementing the present invention.

3 is an exemplary view showing a transfer path diagram of a thick plate product according to the transfer form in the present invention.

Figure 4 is an exemplary view showing a number setting method according to the transfer form of the thick plate product according to the present invention.

Figure 5 shows the roller table configuration of the transfer charging section showing the stop position by the length of the thick plate product according to the present invention.

Figure 6 shows a flowchart for explaining a thick plate product transfer control method using a magnet crane according to the present invention.

7 is a flowchart showing a transfer position setting method of a transfer for implementing the present invention.

8 is a flowchart illustrating a flaw detector input-side transfer control method for implementing the present invention.

9 is a flowchart illustrating a method of controlling an exit transport of a flaw detector for implementing the present invention.

* Detailed description of the symbols for the main parts of the drawings

11: terrestrial international language computer, 12: roller table control,

21: Onboard international language computer, 40: Wearing line roller table,

50: transfer, 60: yard map,

70: offline roller table 80: flaw detector,

90: calibrator, 120: magnet crane,

120a: exit crane, 120b: exit crane,

121: hoisting motor 123: crane body,

124: driving motor, 129: magnet grab,

31, 130: load cell, 131: magnet.

In order to achieve the above object, a thick plate product transfer control method using a magnet crane according to the present invention is selected from (a) when a heavy plate product arrives in a positioning zone of a line roller table, and selects a transfer according to the destination of the heavy plate product. In the step of loading the thick plate product by transfer, (b) If it is determined that the heavy plate product loaded in the transfer arrives in the transfer position zone, transfer the thick plate product in the transfer position zone to the yard map or offline roller table according to the offline work situation. (C) The thick plate product transferred to the offline roller table in the step (b) performs the offline work, and when the offline work is completed, is there a heavy plate product being transferred to the receiving zone of the receiving line roller table? It is provided with a step of transferring to the yard map or the wearing line roller table depending on whether or not.

Hereinafter, with reference to the accompanying drawings, the configuration and operation effects according to an embodiment of the thick plate product transfer control method using a magnet crane according to the present invention will be described in detail.

1 is a block diagram showing a schematic configuration of a magnet crane drive control system for implementing the present invention. As shown in FIG. 1, the magnet crane driving control system for implementing the present invention is largely divided into a ground station and a vehicle station, and the ground station is a ground station terminal 10 capable of setting a position control and number of plates in a cab. Is prepared. Above the ground station control computer which receives the work mode and product position information set in the ground station terminal 10 and sets the magnet according to the length of the thick plate product on the roller table, the transfer to the transfer position, the number of transfer of the thick plate product, etc. (11) and a roller table control unit (DDC: Direct Digital Control) 12 which receives the transfer position of the thick plate product from the ground station control computer 11 and controls the driving of the roller table.

In addition, the onboard station control computer 21 receives the control information such as product length, weight, number and transfer position from the ground station control computer 11 through the wireless communication repeater 13 to control the driving of the magnet crane as a whole. ) And the weight of the heavy plate product adsorbed by the crane and the current control PSI (PLC) 26 and the rectifier control unit 27 for setting the magnet selection and the number of heavy plate sheets under the control of the next-order station control computer 21. The load cell 31 for sensing, the motor control unit 28 and the crane position control unit 29 for transferring the thick plate product to the corresponding position, and the transfer position of the heavy plate product are sensed and the detection result is transmitted to the next-order station control computer 21. A sensor unit to input, that is, a travel distance sensor 22, a pulse generator (PLG) 24, and a height counter 23 for detecting a height of a thick plate product are provided.

Figure 2 is a schematic side configuration diagram of a magnet crane for implementing the present invention. As shown in FIG. 2, the magnet crane is provided with traveling rails 125 supported by the rail support 126 on both sides of the main body 123 of the crane, and the main body 123 of the crane includes the traveling motor 124. It is moved along the travel rail 125 by drive. At this time, the crane is to lift and lift the thick plate product transported on the receiving line roller table (40 in Figure 3) through the magnet 131, such a magnet is a plurality of magnet grab (129) as an example Four are mounted to be selectively driven under the control of the onboard station control computer 21. In addition, the magnet grab 129 is provided on both the left and right sides of the crane body 123.

On the upper side of the crane body 123, a magnet grab 129 for driving the hoisting motor 121 and the hoisting motor 121 for moving the magnet grab 129 up and down by the wire rope 128. Each of the pulse generators 122 for detecting a change in the height of the c) is provided, and a guider for guiding the vertical movement of the magnet grab 129 is installed in order to prevent the left and right shaking when the magnet grab 129 rises and falls. do. In addition, a load cell 130 for detecting the weight of the thick plate product lifted by the driving of the magnet is mounted on the upper side of the magnet grab 129.

One side of the crane body is provided with a crane cab 127 in which the onboard control computer 21 is installed, and the onboard control computer 21 performs data transmission and reception with the ground station control computer 11 through an optical modem as an example of a communication repeater. By controlling the driving of the magnet crane according to the type of heavy plate products. In addition, the magnet crane selectively drives the magnet mounted on the magnet grab 129 by the current control unit 26 and the rectification control unit 27, and simultaneously increases or decreases the magnitude of the current applied to the magnet according to the number of thick plate products. do.

In this configuration, the onboard station control computer 21 selects the magnet 131 of the magnet grab 129 according to the transfer conditions of the transferred thick plate product, and drives the selected magnet to lift the thick plate product. At this time, when the detection result of the pulse generator 122 according to the driving of the hoisting motor 121 is input, the rising height of the magnet grab is calculated and the weight of the heavy plate product is first increased as a predetermined reference height, for example, about 25 cm. It is detected through the load cell 130. At this time, when the weight of the heavy plate product detected at the first rise exceeds a predetermined reference weight, for example, 1/2 of the weight of the heavy plate product having the smallest weight among the produced heavy plate products, the current is controlled through the current controller 26. In addition, the number of piles of a heavy plate product is changed by adding and subtracting.

When the number control is completed, a sufficient amount of current must be supplied to the magnet 131 so as not to drop the rear plate primarily lifted by the magnet grab 129, and for this purpose, the magnet is pulled to the magnet through the current controller 26. ) It is supplied with current and lifted up to about 2.5m in height and moved to the transfer position.

3 is an exemplary view showing a transfer path diagram of a thick plate product according to the transfer form in the present invention. As shown in Fig. 3, in the present invention, when the thick plate product is transferred to the positioning zone E4 of the receiving line roller table 40, flaw detection and cold calibration are performed according to the instructions of the ground station control computer 11. In order to transfer the thick plate product to the T3 transfer unit 51 or the T4 transfer unit 52, or the transfer conditions of the heavy plate product is set in the roller table control unit 12 to be received directly to the warehouse (100).

In addition, when the flaw detection and cold calibration are performed, the roller table control unit 12 controls the roller table to load the thick plate product transferred to the positioning zone E4 into the corresponding transfer. In this case, when the heavy plate product is loaded on the roller table as transfer, it is first loaded in zone B and then transferred to zone C. If there is already loaded product in zone B, it is loaded in zone A and the products in zone B are After being transferred to the yard map 60 or the off-line roller table 70 through the zone, it is transferred to the zone B-> C zone. In addition, when charged as a transfer, when the length of the thick plate product is 12 m or more, for example, it is set to be charged at both sides of the transfer. On the other hand, when the length of the thick plate product is 12 m or less, the zigzag, i.e., right and left sides are repeatedly inserted in both sides of the transfer according to the operating conditions of the transfer set in the ground station control computer 11, or the corresponding yard map for each length of the thick plate product is inserted. The thick plate product is loaded to one side of the transfer, which is the lower side of the existing product.

On the other hand, when it is determined that the heavy plate product is loaded in the zone C of the transfer position zone of the transfer, the vehicle station control computer 21 determines the transfer of the heavy plate product to control the driving of the magnet crane 120 to yard the heavy plate product. Transfer to the entrance zone of the map or flaw detector (80). At this time, the thick plate product is not directly passed through the setting yard map 63 or the yard map for each length of the thick plate product depending on whether the thick plate product is present in the entrance zone of the flaw detector 80 and whether the flaw detector 80 is in operation. 64 is transferred to the entrance zone of the flaw detector 80. The thick plate product transferred from the T3 transfer to the entry yard map 61 is later transferred to the entry zone of the flaw detector (65).

When hoisting a thick plate product through a magnet crane, the vehicle station control computer 21 determines whether the first and second magnet grabs are operated according to the length of the thick plate product, and when the grab is selected, the current applied to the magnet and the magnet. Will control the size of.

When the product is transferred from the transfer position zone of the transfer or the entry zone of the flaw detector 80 to the entrance zone of the flaw detector 80, the roller table control unit 12 drives the off-line roller table 70 to flaw detection of the thick plate product. After carrying out the work, it is transferred to the exit zone. After the flaw detection is completed and transferred to the exit zone, the thick plate product is transferred to the E7 zone of the receiving line roller table 40 or 68 depending on whether the heavy plate product exists in the E7 zone of the receiving line roller table 40 or It is conveyed to the corresponding position of the exit yard map 62 (67).

On the other hand, Figure 4 is an exemplary view showing a number setting method according to the transfer form of the thick plate product according to the present invention. As shown in FIG. 4, the transfer control of the thick plate product according to the present invention transfers the product according to the transfer position of the thick plate product and the loading method to the yard map, and the working state of the flaw detector.

When the product arrives in the conveying position zone E6 of the goods line roller table 40, the roller table control unit 12 according to the length of the thick plate product, i.e., if the product length is 12 m or less, one sheet each on the left and right sides of the transfer. Charging sequentially or one sheet at the same time on both sides of the transfer. In addition, if the length of the product is more than 12m, one sheet is to be inserted into both sides of the zones among the A, B, and C zones of the transfer.

When the heavy plate product is loaded in the transfer position zone (zone C) of the transfer, the next station control computer 12 transfers the thick plate product to the corresponding position of the entrance yard map 61. At this time, each area of the entrance yard map 61 is set the type of thick plate products that can be loaded, respectively, according to the length of the thick plate product, the information on the transfer position of the yard map for the thick plate product is the ground station control computer 11 It is received from.

When the thick plate product is placed on the yard map, the same group is placed symmetrically in the case of 12m or less according to the operation mode of the transfer set by the ground station control computer 911). Make sure to put it on the yard map.

The exit crane 120b transfers the heavy plate product stopped in the exit zone of the flaw detector 80 or the exit zone of the calibrator 90 to the exit yard map 62 or in the corresponding position zone of the receiving line roller table 40. (E7 zone or E9 zone), and when the heavy plate product is transferred from the exit yard map 62 to the E7 zone, products of the same length, the same demand, and the same filing conditions of the same grade are simultaneously transferred. Otherwise, the heavy plate products are transferred to the E7 zone one by one and received in the warehouse 100.

Figure 5 shows the roller table configuration of the transfer charging section showing the stop position by the length of the thick plate product according to the present invention. As shown in FIG. 5, the magnet crane driving control method according to the present invention selects the stop position and the magnet of the grab respectively according to the product length of the thick plate product transferred to the receiving line roller table 40. First, the reference of the stop position for each product length of the thick plate product is set based on each roller position of the roller table provided in the transfer charging section. That is, in the thick plate product, the stop position is set so that the center point of the thick plate product coincides with the stop position set at the roller position in accordance with the product length.

In this case, the reference point for setting the stop position is a reference point (a) for calculating the stop position of the thick plate product using the right grab, respectively, and a reference point for the stop position calculation of the thick plate product using the left grab or both of the grabs. (B) is used. In addition, the position where the magnet and the thick plate product used in accordance with the length of the thick plate product is stopped on the roller table is shown in Table 1 below.

Length of thick plate product (L) Stop position standard code Stop position roller number Magnet Number Grab Use Classification L≤3400mm ① 20 ~ 21 center ② Right grab ③ 20 ~ 21 center ⑥ Left grab 3400 <L≤6400mm ② 19 ②③ Right grab ④ 6 ⑥⑦ Left grab 6400 <L≤9400 ① 20 ~ 21 center ①②③ Right grab ③ 20 ~ 21 center ⑤⑥⑦ Left grab 9400 <L≤12000 ② 19 ①②③④ Right grab ④ 6 ⑤⑥⑦⑧ Left grab 12000 <L≤13400 ⑤ 12 ~ 13 center ③④⑤⑥ Grave on both sides 13400 <L≤16400 ⑥ 14 ②③④⑤⑥ Grave on both sides 16400 <L≤19400 ⑤ 12 ~ 13 center ②③④⑤⑥⑦ Grave on both sides 19400 <L≤22400 ⑥ 14 ①②③④⑤⑥⑦ Grave on both sides 22400 <L ⑤ 12 ~ 13 center ①②③④⑤⑥⑦⑧ Grave on both sides

On the other hand, the next-order control computer 21 recognizes the arrival form of the heavy plate product, if the product is one piece, if the product length is more than 12m, select the corresponding magnet installed on both grabs, if the product length is less than 12m installed on the left or right grab The magnet will be selected. On the other hand, when two groups of left and right filing materials arrive in the transfer position zone of the transfer, both magnet grabs are used to transfer simultaneously. At this time, when the filing material is simultaneously transported with both magnet grabs, the product length is 11m or less, the material length is the same group, or the left and right height difference between the transfer position zone (T3-C) of the transfer is 300mm or less, or the height of the yard map It checks whether the difference is less than 150mm, the total weight of the left and right products is 11 tons or less, and the difference in the number of products in the transfer position zone of the transfer is 4 or less. If not, the filing material transferred to the right side of the transfer is transferred first using the right magnet grab.

Hereinafter, with reference to the accompanying drawings the operation and effect of the thick plate product transfer control method using a magnet crane according to a preferred embodiment of the present invention will be described in detail.

Figure 6 shows a flowchart for explaining a thick plate product transfer control method using a magnet crane according to the present invention. As shown in Figure 6, the feed setting control method of the magnet crane according to the present invention, when the driver selects the operation mode of the magnet crane in the ground station terminal 10 in step (s10) and step (s11), the ground station input The mode transfer setting task is performed to check the operation mode of the magnet crane input in step S13. At this time, the operation mode of the magnet crane input from the driver includes flaw detection mode, flaw detection mode, pull-off mode and manual step mode. The pull-pump mode is to control the crane crane by setting the prom zone and throw zone of the thick plate product manually, and the manual step mode is used when the thick plate product is not transferred to the preset dump zone. Refers to the operation to transfer to the original setting position by manual operation of the station operator.

At this time, the ground station control computer 11 receives the transfer setting result corresponding to each operation mode of the next station in step S14. Therefore, in step s15, it is determined whether the setting for the operation mode of the magnet crane and the transfer information of the thick plate product is completed, and if so, the transfer setting information is transmitted to the next-order station control computer 21 in step s16. do.

The next station control computer 21 receives the operation mode and the transport setting information of the thick plate product transmitted from the ground station control computer 11 in step s17, and transfers the crane according to the operation mode of the crane set in step s18. The plate product to be moved is moved from the zone to which it is placed.

When the magnet crane 120 arrives at the prompt zone, in step S19, the interlock request signal is transmitted to the ground station for transport of the heavy plate product as the crane arrives at the prompt zone. At this time, if it is determined in step s20 that the ground station control computer 11 has an interlock request from the next station, the ground station control computer 11 sets an interlock to the roller table control unit 12 in step s21, and the interlock of the roller table in step s22. When the setting is completed, the next station control computer 21 is notified that the interlock setting is completed in step S23.

Therefore, if it is determined in step S24 that the interlock request completion signal is received after transmitting the interlock request signal, in step s24, the magnet grab ( 129). At this time, in step (s26) it is to select the grab of the magnet crane and the magnet of the corresponding grab according to the length of the thick plate product waiting to be transported. Subsequently, in step s27, an appropriate driving current is applied according to the number of transfers of the thick plate product set in the magnet of the selected grab, and the thick plate product is firstly wound up by the magnet in step s28. At this time, in step s29, the number of first hoisted heavy plate products is sensed through the load cell 130, and the number of detected heavy plate products is compared with the number of set heavy plate products. As a result of the comparison, if the number of detected plates of the thick plate product does not match the set number of sheets, the above step (s27) may be repeatedly performed to lift and transport the plate plates of the set number of sheets at the same time. In addition, when the number of sheets of the first hoisted thick plate product matches the set number of sheets, the process proceeds to step s30 and step s31 to apply a full current to the magnet through the current control unit 26 and the rectifying control unit 27. Perform secondary hoisting.

At this time, in steps s32 and s33, the interlock release signal is transmitted to the ground station as the secondary hoist of the thick plate product according to the driving of the magnet, and the ground station transmits the interlock release signal to the roller table controller 12. . Therefore, in step S34 and step S35, the roller table control unit 12 releases the interlock state of the roller table to drive normally, and when the interlock release is completed, transmits the completion of the release to the ground station. In addition, when it is determined in step s36 that the interlock release of the roller table control unit 12 is determined, the ground station transmits an interlock release completion signal to the next-order station system.

Accordingly, when it is determined in step s39 that the interlock release is completed, the next station drives the magnet crane to transfer the thick plate product lifted by the second hoist in step s39 to a transfer target position (to zone). At this time, the transfer target position is set to different places according to the working mode set in the step (s13). For example, in the flaw detector entry mode, the flaw detection zone is the transfer target position, and in the flaw detection mode, The receiving line roller table 40 or the exit yard map 62 becomes the transfer target position.

When the heavy plate product arrives at the jet zone by driving the magnet crane in step s40, the onboard station control computer 21 transmits an interlock request signal to the ground station when the transport position of the heavy plate product is a roller table, and step s41. And in step s42, the ground station receives the interlock request signal and interlocks the drive of the roller table via the roller table control unit 12. When the drive of the roller table is interlocked, the next-station station control computer 21 recommends the thick plate product at the corresponding position of the projection in step S46. On the other hand, when the transport position of the heavy plate product is a yard map, the heavy plate product is immediately recommended to the yard map which is the transport position without requiring an interlock to the ground station.

When the heavy plate product is pushed to the transport position by the magnet crane, in step s47, the current applied to the magnet is released. Thereafter, in step S48, the hoisting motor 121 is driven to raise the magnet, which has been recommended to lift the thick plate product, and the exit stop position according to the length of the thick plate product is set.

In steps s49 to s52, the interlock release signal is output to the ground station control computer 11 and the roller table control unit 12 so as to release the interlock of the roller table on which the roll-up of the thick plate product is completed. In addition, in step s53, when the interlock of the roller table is released, the home position of the magnet crane is set and transmitted to the on-vehicle station control computer 21 side, and the transfer information for the thick plate product transferred to the tuzon in step s54. Will be created.

7 is a flowchart showing a transfer position setting method of a transfer for implementing the present invention. As shown in Figure 7, in the transfer position setting method of the transfer for implementing the present invention, the thick plate product transferred to the receiving line roller table 40 to the off-side flaw detector 80 and the corrector 90 In each of the transfer, the transfer is set so that various lengths of the thick plate product can be grouped to be transferred using a magnet crane, and the number of thick plate products loaded into the transfer is selected.

That is, when the heavy plate product arrives in the transport position zone E4 of the wearing line roller table 40 in steps s60 and s61, in step s62, the flaw detector ( It is decided whether to select the 90-side T3 transfer or the calibrator 80-side T4 transfer. In addition, when the transfer is selected, it is determined in step s63 whether the product length of the thick plate product in the transfer position zone is longer than a predetermined length, for example, 12 m or more, and if the determination result is 12 m or more, the process proceeds to step s67 where both sides of the selected transfer are selected. Set the heavy plate product to be charged in all.

On the other hand, if the length of the thick plate product is less than 12m to proceed to step s64 to determine the charging mode of the transfer. In this case, if the charging mode of the transfer is the zigzag mode, the process proceeds to step s68 to compare the previously set matter with the setting position of the current thick plate product. The zigzag mode of the transfer is to load the heavy plate products alternately to the right and left of the yard map, regardless of the number of loads of the current left and right heavy plate products of the corresponding yard map in which the loading position is preset for each product length (s69). In step S71, when the previous setting is right, the transfer setting position of the current thick plate product is left. On the contrary, when the previous setting is left, the current setting position is right.

However, as a result of the determination in step s64, when the charging mode of the transfer is a yard mode in which the heavy plate product is loaded in the less loaded direction according to the left and right height difference of the yard map, the left and right symmetric map of the corresponding yard by the product length in step s65. Check to set the charging position of the transfer so that the heavy plate product is transferred to the lower yard map in step s66.

On the other hand, in step s72, when the transfer to be charged is set, the loading position of the transfer according to the product length is set, wherein the stop position on the receiving line roller table to be loaded into the transfer is {absolute position-stop distance * 1/2 of the length of the product, and the stop position in the state of being charged with transfer is {loading position-stop distance * 1/2 of the product width}.

Therefore, in step s73, the feed stop position of the thick plate product and the charge stop position of the transfer for charging the thick plate product to the roller table control unit 12 are set, and the roller table control unit 12 is set according to the set condition. Will be driven. In step s74, when the arrival of the product is completed from the receiving line roller table 40 to the transfer position zone of the transfer, in step s75, crane driving is controlled to transfer the thick plate product to the flaw detector entry or exit side according to the set operation mode. After that, the transfer charging operation is completed in step S76.

8 is a flowchart illustrating a flaw detector input side control method for implementing the present invention. As shown in FIG. 8, the flaw detector entrance feeding control method for implementing the present invention includes the transfer position zone of the transfer in a state in which the transfer mode of the thick plate product is set to the flaw detector entrance mode in steps S80 and S81. When the thick plate product arrives at (T4-C), in step s82, the charging position of the thick plate product arrived at the transfer position zone of the transfer is determined. That is, the position of the thick plate product loaded into the transfer is judged, and the grab of the magnet crane is selected according to the loaded position, and the magnet for winding up according to the length of the loaded thick plate product is selected.

In the step (s83), the number of sheets of heavy plate products currently being transferred to the transfer position zone of the transfer is determined. In this case, when the plate is a filing material, the sum of the product thicknesses in step (s84) is an example of the maximum number of transfer units. It is judged whether it is more than 45 sheets. As a result of the determination, if the number of piled plated products is 45 sheets or more, the flow proceeds to step (s85), and the filing material is divided and set to 45 sheets of the maximum transfer unit number, and when the maximum number of sheets is 45 sheets or less, the process (s86). Will set the transfer unit to feed in the currently filed state. In addition, in step s87, when the setting of the transfer unit is completed, it is determined whether the thick plate product exists in the two zones before the transfer position zone of the transfer, that is, the zones A and B of the transfer. If there is a product, there is a risk of congestion on the receiving line roller table, so the heavy plate product in the transfer position zone is immediately transferred to the yard map. Therefore, the magnet is selected in accordance with the stacking position and the number of sheets of the thick plate product in step s88, and the yard map according to the length of the thick plate product is selected in step s89. Subsequently, the transfer condition set in step S90 is transmitted to the next-order station controller to transfer the thick plate product of the transfer to a proper place of the yard map.

On the other hand, if there is no thick plate product transferred to the previous two zones of the transfer position zone of the transfer, the mouth of the flaw detector is transferred to transfer the thick plate product from the transfer position zone of the transfer to the entry zone of the offline roller table in step s91. It is determined whether there is a heavy plate product in the side zone. As a result of determination, if there is a heavy plate product waiting for flaw detection in the entrance zone of the flaw detector, the stand-up zone waiting setting is set in step s94, and it is determined whether the heavy plate product placed in the entrance zone has been transferred to the flaw detector side in step s95. do. As a result of the determination, when the heavy plate product waiting in the entrance zone is transferred to the flaw detector side and is in the flaw detection operation, it proceeds to step s96 and the control signal to the next-order station control computer 21 to recommend the heavy plate product set to the entrance zone. Will print

If there is no product in the entrance zone of the flaw detector 80 as a result of the determination in step S91, the flow proceeds to step s92 to determine whether the flaw detector 80 is currently in flaw detection operation, in which case flaw detection operation In the case of the step S93, the sum of the length of the flaw detected product and the length of the heavy plate product to be conveyed is calculated and the sum of the calculated product lengths is less than 20 m, which is the length when the roll back is used for flaw detection. It will be judged. If the sum of product lengths in step s98 is less than 20 m, the product is passed after the thick plate product passes from the product pass zone U2 of the entrance zone of the flaw detector 80 to the flaw detection zone U3 in step s99. It is set to make a recommendation and transmits it to the next-order station control computer 21, and when the total product length is 20 m or more, transfer setting is made so as to recommend the product after waiting for the recommendation work until the completion of the flaw detection in step S100.

On the other hand, in the next step (s102) to check whether the product arrived in the transfer position zone (zone C) of the transfer, if there is an arrival product, repeating the above step (s82) to instruct work again, the product in the transfer position zone If it is not there, repeat step s91 or less to instruct transfer of the products present in the yard map into the entrance zone of the flaw detector one by one in step s103 so that the products of the yard map are transferred to the entrance zone of the flaw detector. do.

9 is a flowchart illustrating a method of controlling an exit transport of a flaw detector for implementing the present invention. As shown in FIG. 9, the outgoing feed control method of the flaw detector for implementing the present invention includes a flaw detector for transferring a product having the flaw detection work completed at the exit of the flaw detector in step S110 to a line roller table or a yard map. When the exit feed setting mode is set, it is determined in step s111 whether a product having completed the flaw detection work has arrived in the flaw detection zone, and in step s112, the result of the flaw detection inspection of the product arrived in the exit zone has passed. It is determined whether it is a normal product or a bad product.

At this time, in the case of a defective product is set to transfer to the reject yard map in step (s114), and in the case of a normal product in the transfer zone of the receiving line roller table and the transfer zone to receive the product in the warehouse in step (s113) It is checked whether there is a product in progress, and if there is no product in progress on the wearing line roller table 40 in step s114, the transfer is set to the wearing line roller table 40 in step s116. On the other hand, if there is another product in progress on the receiving line roller table 40, since the heavy plate product must be transferred from the flaw detector 80 to the yard map, the same grade as the length of the heavy plate product waiting to be transferred in step (s117), By checking whether there are heavy plate products having the same demand and the same position, it is determined whether there is a yard map on which the heavy plate product satisfying the same filing conditions is placed.

If there is a yard map with the same condition in step s118, the transfer to the corresponding yard map is set in step s119. If there is no yard map with the same condition, the yard map for the product length is obtained in step s120. Set a new value and send the control signal according to the transfer setting to the next station. Subsequently, in step s122, the thick plate product transferred to the exit zone of the flaw detector according to the set transfer condition is transferred to the wearing line roller table 40 or the corresponding yard map. When the transfer is completed in step (s123), it is determined whether the product exists in the exit zone of the flaw detector 80, and if there is a product in the exit zone, repeating the above step (s112) or less, the product in the exit zone passes the flaw detection product The authorization will be checked again.

On the other hand, if there is no product in the exit zone to move the magnet crane to the yard map specified in step (s124) to carry out the operation to transport the heavy plate product placed on the yard map on the line roller table 40. At this time, in step (s125) it is determined whether the heavy plate product loaded on the yard map to which the crane is moved is a filing product, and if it is not a filing product, the thick plate product loaded in step (s126) is transferred and set one by one, and the filing In the case of a product, the maximum number of filing sheets is set to be transferred simultaneously in step S127.

At this time, in step s128, if there is a heavy plate product currently being transported on the roller table by checking the unloading zone and the transfer zone of the goods line roller table, after the product moving in the goods line roller table 40 passes in step s130 Outputs the control signal to the onboard station so that it is recommended to wear the heavy plate product moved to the transfer position by the magnet crane, and wait for the product of the line roller table 40 to move out of the transfer position, and then set the transfer to the lower position. do. Then, if there is no product in the corresponding transport position of the goods receipt line roller table 40, the transfer setting to the next-order station control computer 21 to immediately transfer the product to the corresponding location of the goods receipt line roller table 40 in step (s129). do.

In addition, when the off-line calibrator 90 and the product having completed the flaw detection work arrive at the flaw detector 80 or the exit roller table of the calibrator 90 while transferring the product of the yard map, the material during the yard map transfer operation is transferred. After that, the transfer is set to transfer the products in the exit zone.

The thick plate product transfer control method using the magnet crane according to the present invention is not limited to the above-described embodiments and may be variously modified within the range permitted by the technical idea of the present invention.

As described above, the thick plate product transfer control method using the magnet crane according to the present invention, in the case of transferring the thick plate product through the magnet crane, by using the magnet unmanned crane the automatic of the magnet by the length and width of the thick plate product Automatically receive, transport, and ship heavy plate products in the shortest time without congestion by automatically performing settings, setting number of plates according to the type of transfer, automatic recognition of the transport position of heavy plate products, and filing judgment based on the results of flaw detection and calibration. The effect can be obtained.

Claims (5)

(A) when the heavy plate product arrives in the positioning zone of the line roller table, selecting the transfer according to the destination of the heavy plate product, and charging the heavy plate product with the selected transfer, (B) if it is determined that the heavy plate product loaded into the transfer has been transferred to the transfer position zone, setting the transfer of the heavy plate product of the transfer position zone to the yard map or the offline roller table according to the offline work situation, (C) The thick plate product transferred to the offline roller table in the step (b) performs the corresponding offline work, and if the offline plate product is being transferred to the receiving zone of the receiving line roller table when the offline work is completed, The method according to claim 2, characterized by comprising the step of transferring to the yard map or the wearing line roller table. The method of claim 1, wherein the transfer charging step (a) (A) loading and setting the product arriving at the positioning zone into the flaw detector side transfer and the calibrator side transfer according to the offline work type such as flaw detection and calibration; (A) determining the length of the thick plate product after moving the thick plate product to the transfer position of the transfer when the transfer is set in step (a); (3) If the length of the thick plate product is longer than a certain length, and charged at both sides of the transfer at the same time, if the length is less than a predetermined length characterized in that it comprises the step of charging at a predetermined position of the transfer according to the preset charging mode. Heavy plate product transfer control method using a magnet crane. The method of claim 1 or 2, wherein step (b) (B) if it is determined that the thick plate product exists in the transfer position zone of the transfer, determining whether the thick plate product exists in the previous zone of the transfer position zone of the transfer, (B2) As a result of the determination in step (B1), when there is a thick plate product in the transfer zone of the transfer transfer position zone, the magnet of the entry crane is selected according to the length of the product, and a predetermined driving current is applied to the magnet selected according to the number of hoisting. Approving the thick plate product by applying the step and moving to the position by the length of the heavy plate product in the entrance yard map to the recommended position, (B3) As a result of the determination of step (b1), if there is no heavy plate product in the transfer zone of the transfer position zone, it is determined whether the offline work is performed. If the sum of the lengths of the heavy plate products to be calculated is less than the predetermined standard length, the thick plate product in the transfer position zone is transferred to the entrance zone of the offline roller table. And controlling the driving of the side crane so as to unload the thick plate product after waiting until it passes through the calibrator. The method of claim 1, wherein step (c) (C) performing flaw detection and correction on the thick plate product loaded in the corresponding entry zone of the offline roller table in the step (b), and corresponding to the exit zone according to the length of the heavy plate product on which flaw detection and correction are completed. To the position, (C 2) if it is determined that the heavy plate product arrives in the exit zone, applying a predetermined current according to the number of hoistings to the magnet of the exit crane, and hoisting the heavy plate product; (C3) It is determined whether there is a heavy plate product being transferred to the receiving zone of the receiving line roller table.If the judgment indicates that there is a heavy plate product being transferred to the receiving zone of the receiving line roller table, it moves to the exit yard map to It is recommended to the corresponding position according to the length of the, and if there is no thick plate product in the corresponding position of the wear line roller table characterized in that it comprises the step of winding up the thick plate product wound in the receiving zone of the wearing line roller table Thick plate product transfer control method using magnet crane. The method of claim 1, (D) if there is no heavy plate product in the exit zone of the flaw detector in the step (c), the method further comprises moving to a predetermined exit yard map and transferring the heavy plate product placed on the exit yard map to a transfer zone of the line roller table. Thick plate product transfer control method using a magnet crane characterized in that consisting of.