KR100685033B1 - Apparatus for Preventing Coils from Down Falling or Slippage from A Coil Transfer Car - Google Patents

Abstract

A high speed bogie cold rolled coil conduction and slip prevention device is provided to prevent the cold rolled coil from conducting or slippage from the bogie.

The present invention includes a pair of pushing means which are respectively disposed before and after the coil pedestal of the trolley and which can be moved straight along the guide toward the coil on the coil pedestal; A pair of drive means disposed in said pushing means, respectively, for moving said pushing means forward and backward respectively; Sensor means mounted to one side of the bogie to detect a distance between the coil on the coil pedestal and to measure a coil position on the coil pedestal; And a control unit operatively connected to remotely drive the driving means and receiving a signal from the sensor means to adjust a coil position on the coil pedestal through the driving means. And a slip prevention device. According to the present invention, in the process of transferring the cold rolled coil by the high speed bogie, it is not conducted on the coil pedestal, does not slip, and the compensation operation is performed by changing the position of the coil, thereby obtaining the effect of the coil not being conducted on the bogie.

Coil support, drive means, sensor means, cold rolled coil conduction, slip prevention device, coil position compensation

Description

Cold rolled coil overturn and slip prevention device of high speed bogie {Apparatus for Preventing Coils from Down Falling or Slippage from A Coil Transfer Car}

1 is an explanatory view showing a cold rolled coil transfer process according to the prior art.

2 is an explanatory diagram showing a situation in which a cold rolled coil is conducted from a bogie in a cold rolled coil transfer process according to the related art.

Figure 3 is a side view of the trolley equipped with cold rolling coil conduction and slip prevention device of the high-speed trolley in accordance with the present invention.

Figure 4 is a cross-sectional view showing the main part of the cold rolling coil conduction and slip prevention apparatus of the high-speed bogie according to the present invention.

5 is a view showing the pushing means provided in the present invention, a cross-sectional view taken along the line A-A of FIG.

Figure 6 is an explanatory view showing the operating state of the cold rolling coil conduction and slip prevention device of the high-speed bogie according to the present invention.

       * Explanation of symbols for main parts of drawings *

1 ..... Cold rolling coil conduction and slip prevention apparatus of high speed bogie according to the present invention

10 ... push means 12 ... guide

16 .... Female thread part 18 .... Turning

12a ... bolt 30 .... drive means

32 .... Servo Motor 32a .... Shaft

34 .... screw shaft 40 .... pulse transmitter

50 .... Sensor means 52 .... Support

54 .... Ultrasonic Sensors 100 .... Controls

200 .... Cold rolled coil spreading process 212,222,232,234,244,246,248 ... skid

250 .... High Speed Bogie 252 .... Coil Pedestal

C .... cold rolled coil

      The present invention relates to an apparatus for preventing cold rolled coils from falling or slippage from a bogie in a process of transferring a finished cold rolled coil to a continuous molten zinc plating process in a cold rolling process for manufacturing continuous molten zinc plated steel sheets for automobiles. In more detail, the cold rolled coil is pushed back from the bogie to fall or slip (slip) from the bogie in a state where the contact friction with the coil pedestal is reduced due to vibration generated during the movement of the high bogie in detail. The present invention relates to a cold rolling coil conduction and slip prevention device of a high-speed bogie that has been improved to prevent breakage and minimize the occurrence of defect rate of cold rolled coil products.

     Generally, as shown in FIG. 1, the cold rolling coil C, which is a material of a hot dip galvanized steel sheet, has a cold rolled coil C produced in a cold rolling line PL / TCM, which is operated as a transfer facility. It is moved to the A ”skid (Skid) 212 side via the transfer apparatus 210, and is piled up.

      The cold rolled coil C loaded on the “A” skid 212 is transferred to the “L” skid 222 using another transfer equipment (ECTC) 220, and the “L” skid 222. When transferred, the cold rolled coil lifter (not shown) is transferred to the first or second skids 232 and 234 which are the entrance P1 of the balance transfer line.

      Next, the cold rolled coil C loaded on the first or second skids 232 and 234 is installed in the loading yard, which is the exit P2 of the trolley transfer line, using the high speed trolley 250. 6, skid 244, 246, 248 is placed in a suitable place, and then finally transferred to the next work process using a separate crane (not shown).

      Cold rolling coil (C) loaded on the high-speed bogie 250 in the transfer process as described above along the transfer direction of the high-speed bogie 250 due to the vibration and rapid start or sudden stop from the high-speed bogie 250 in the transfer process It slides out of its original position on the coil pedestal 252.

      In this state, when the cold rolling coil C is lifted through a crane (not shown) after the arrival of the high speed truck 250, the cold rolling coil C which is out of its position is conducted from the high speed truck 250. Down Falling) causes shock and damage to surrounding equipment. Typically, the cold rolled coil (C) is about 50 tons (weight) of the weight, so the impact of such conduction causes serious damage to the surrounding equipment.

      Looking at the important factors that the cold rolled coil (C) is conducted from the high-speed bogie 250 as described above, the surface of the cold rolled coil (C) with the rolling oil is that the temperature is maintained at about 60 ℃ or more, such a cold rolled coil ( C) is immediately taken over by the high-speed cart 250, the transfer operation is made.

      Therefore, when the cold rolled coil C is in a high temperature state and the surface of the cold rolled coil C is slippery by rolling oil, the transfer direction of the high speed truck 250 and the stack direction of the cold rolled coil C on the upper side thereof are Since the coil C is formed in the same direction, the coil C may be pushed from the position on the coil pedestal 252 due to various causes such as vibration generated during the movement of the high speed truck 250 and sudden braking. That is, the cold rolling coil C in a state where the rolling oil is maintained at about 60 ° C. or more as described above is in a state where the contact friction force between the coil pedestal 252 of the high speed truck 250 in which it is stacked is small, By the cause, the phenomenon that the loading center position of the cold rolling coil C is changed on the coil pedestal 252 is changed from the firstly placed position.

      In this state, when working to lift the cold rolling coil (C) from the high-speed bogie 250 through the crane 300 as shown in Figure 2, with a small impact applied to the cold rolling coil (C) by the crane An accident in which the cold rolling coil C is conducted from the high speed truck 250 also occurs.

      Such a fall accident causes the transfer operation of the cold rolled coil (C) to be interrupted and not interrupted, which not only has a fatal effect on the flow of the cold rolled coil, but also results in a large facility accident due to a heavy impact.

      In addition, even if the cold rolled coil C is inverted, the cold rolled coil C, which has been conducted once, is greatly deformed by the impact thereof. As the treatment is performed, a problem that the error rate of the cold rolled coil C decreases also occurs.

The present invention has been made to solve the above-mentioned conventional problems, and its object is to move the cold rolled coil from its original position during the transfer of the cold rolled coil on a high-speed bogie, or to move in a stable state without being prevented from slipping. The present invention provides a cold rolling coil conduction and slip prevention device of a high speed bogie.

       Further, another object of the present invention is a cold rolled coil by a crane by correctly correcting the position of the cold rolled coil on the high speed bogie when the cold rolled coil is moved from a position initially placed on the high speed bogie during the transfer of the cold rolled coil. It is to provide a cold rolled coil conduction and slip prevention device of the high-speed bogie improved to achieve a smooth coil transfer operation, as well as to prevent equipment damage by preventing the cold rolled coil is easily conducted during the hoisting operation.

In order to achieve the above object, the present invention provides a device for preventing the cold rolled coil from falling or slippage from the balance in the process of transferring the cold rolled coil,

A pair of pushing means disposed before and after the coil pedestal of the bogie and capable of moving straight along the guide toward the coil on the coil pedestal;

A pair of drive means disposed in said pushing means, respectively, for moving said pushing means forward and backward, respectively to move said coil on said coil rest;

Sensor means mounted on one side of the trolley and detecting a distance to a coil on the coil pedestal and measuring a coil position on the coil pedestal; And

And a control unit operatively connected to remotely drive the drive means, the controller being configured to receive a signal from the sensor means to change the coil position on the coil pedestal by driving the drive means. The cold rolling coil conduction and slip prevention device of the high-speed bogie is characterized in that the pushing means is fixed to the coil to secure the coil, and to correct the changed position of the coil when the position of the coil is changed after the movement. to provide.

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

In the cold rolling coil conduction and slip prevention apparatus 1 of the high speed trolley according to the present invention, as shown in FIG. 3, the cold rolling coil C is conducted or slips from the trolley 250 in the process of transferring the cold rolling coil C. It is a device to prevent (Slippage),

The cold rolling coil conduction and slip prevention apparatus 1 of the high speed trolley according to the present invention is disposed before and after the coil pedestal 252 of the trolley 250, respectively, and along the guide 12 to the coil on the coil pedestal 252. It is provided with a pair of pushing means 10 which can be moved straight toward.

As shown in FIGS. 4 and 5, the pushing means 10 is disposed before and after the coil pedestal 252 of the trolley 250. The material is coated with a heat-resistant plastic synthetic resin material and the like. The inside is made of a structure in which the female screw portion 16 is formed of a steel material, so that the front surface thereof can push the side of the cold rolled coil C without damage.

In addition, the pushing means 10 has a projection 18 formed on its lower surface and moves straight along the guide 12 toward the coil C on the coil pedestal 252. The projection 18 Has a cross-section of ⊥, and the guide 12 for guiding it linearly has a cross-section of ┏ so that the projection 18 is inserted therein and guided linearly.

The guide 12 is fixed to the upper surface of the cart 250 through a plurality of bolts 12a and the like before and after the coil support 252 is positioned.

In addition, the present invention has a pair of drive means 30 disposed in the pushing means 10 to move the pushing means 10 back and forth, respectively.

Each of the driving means 30 includes, for example, a servo motor 32 capable of forward and reverse rotation, and the servo motor 32 is firmly fixed to the upper surface structure on the high speed bogie 250. The rotating shaft 32a may have a structure in which the screw shaft 34 is mounted. The driving means 30 are respectively arranged before and after the coil pedestal 252 and the screw shafts 34 have a structure in which the female screw portion 16 of the pushing means 10 enters into the screw and engages. .

Therefore, when the servo motors 32 constituting the driving means 30 operate the screw shafts 34 forward and reverse rotation, the pushing means 10 of which the female screw portion 16 is screwed to the screw shaft 34 ) Is a projection 18 is guided linearly by the guide 12 to perform the forward, backward operation.

In addition, a pulse transmitter (PLG) 40 or the like which detects the number of rotations of the servo motor 32 and converts it into an electrical signal at the rear end of the servo motor 32 and sends it to the controller 100 to be described later. Is equipped.

In addition, the present invention is mounted on one side of the trolley 250, and provided with a sensor means 50 for measuring the position of the coil on the coil pedestal 252 by detecting the distance to the coil on the coil pedestal 252 do.

      As shown in FIG. 3, the sensor means 50 may be configured as an ultrasonic sensor 54 fixed to an appropriate height on a support 52 provided on one side of the high speed cart 250. The sensor means 50 is set so that its mounting height can detect the distance therebetween when the coil is seated on the coil pedestal 252 of the trolley 250.

      That is, the ultrasonic sensor 54 emits ultrasonic waves toward the coil therefrom, and then measures the return time to measure the distance from the sensor means 50 to the cold rolled coil C on the coil pedestal 252. . The sensor means 50 is electrically connected to the control unit 100 to transmit the measured distance signal with the coil on the coil support 252 to the control unit 100. Typically, the sensor means 50 as described above accurately detects a distance of about 1000 mm.

And, the present invention is operatively connected to drive the drive means 30 remotely, when receiving the signal from the sensor means 50 is detected that the position of the coil (C) has been changed, that is, the If it is detected that the coil (C) is not located at the normal point, the control unit 100 for changing the coil position on the coil pedestal 252 by driving the drive means 30.

      As shown in FIG. 3, the controller 100 is electrically connected to the sensor means 50 to receive a signal, electrically connected to the display 120 displaying the signal to the outside, and the driving means ( 30 is electrically connected to the drive means 30 so that the drive means 30 can be operated remotely.

      In addition, the control unit 100 is made of a single small facility control computer having a built-in operation and control programs, a controller (PLC: Programmable Logic Controller) or the like, or the high-speed truck 250 for transferring the cold rolled coil (C) It may be configured as part of the control system of the controllable by field workers. The control unit 100 may output the information detected by the sensor means 50 to the outside through the display 120, as well as the operator to individually operate the driving means 30, or the control unit. The driving means 30 may be operated in a predetermined manner through an arithmetic program, a control program, and the like embedded in the apparatus 100. Such a facility control system may be applied to a general technique applied in an automated installation in the art, and thus a detailed description thereof will be omitted.

       In addition, the display 120 for outputting the information from the control unit 100 to the outside is provided on the work status plate of the work room where the on-site drivers are arranged, the driver to manage the transfer operation of the cold rolling coil (C) the display 120 It is configured to grasp the information provided in).

      Cold rolling coil conduction and slip prevention device 1 of the high speed trolley according to the present invention configured as described above is shown in Figure 6a, the cold rolling coil on the high speed trolley 250 at the entrance P1 of the coil transfer line ( C) In the case where it is intended to be mounted, the cold rolling coil is positioned at the predetermined position on the coil support 252 by placing the pushing means 10 farthest from the coil support 252 and increasing the distance therebetween. Make sure that (C) is in position.

      In this state, before moving the high speed truck 250, the driver operates the driving means 30 through the control unit 100, and pushes the pushing means 10 to the side of the cold rolling coil C. Support the sides of the cold rolled coil (C) from both sides.

      In this case, the control unit 100 operates the servo motors 32 constituting the driving means 30 so that the screw shafts 34 rotate so that the pushing means 10 screwed to the screw shafts 34 are rotated. Each of the protrusions 18 formed at the lower side thereof is guided in the guide 12 to linearly advance to support both sides of the cold rolled coil C.

In this case, the pushing means 10 is moved forward toward the coil (C) side on the coil support 252.

      And, if the pushing means 10 is in close contact with the cold rolling coil (C) as described above no further advancement, the drive means 30 is stopped in that state and the cold rolling coil ( The distance to C) is measured.

      In addition, the distance signal with the coil thus measured is transmitted to the control unit 100 and stored in the stored program, and the value is displayed on the display column 122a on the display 120. Then, the high speed bogie 250 is moved from the inlet side P1 of the coil transfer line to the outlet side P2, and when the outlet side P2 is reached, the high speed bogie 250 stops at a predetermined position.

      In this state, the present invention measures the distance between the coil C once again via the sensor means 50, and the measured value is transmitted to the controller 100.

      The control unit 100 compares the transmitted distance value with the distance value input at the entrance P1 of the transfer line, determines whether the difference is within the set value, and simultaneously calculates the distance value of the transfer line exit P2. The display 120 outputs the display panel 122b to the outside, and the difference from the first distance value is output to the display panel 122c.

       Such operation is performed by a predetermined program in the controller 100, and even if the coil is supported by the pushing means 10 during the transfer of the high speed truck 250 as described above, the coil of the balance 250 If the slip (slip) of the coil (C) is made on the pedestal 252, the distance value of the coil (C) is fluctuated so that the sensor means 50 measures the distance value again and transmits it to the control unit (100). will be.

     Therefore, in the controller 100, if a difference occurs in the distance value of the exit P2 compared to the initial distance value of the transport line entrance P1 and it exceeds the set range as indicated in the corresponding display field 122d, The position correction operation of the coil C is started.

      In this case, for example, as shown in FIG. 6B), the distance value with the coil measured by the sensor means 50 at the entrance P1 of the transfer line is 760 mm, and the distance at the exit P2. If the value is 784 mm, the difference value between them is 24 mm. Since the final difference value exceeds the appropriate limit value 20mm set by the drivers, it is necessary to move the coil at least 4mm or more.

      To this end, the controller 100 drives one of the pair of driving means 30 to advance the pushing means 10 connected thereto, and the other driving means 30 on the opposite side. Is to operate the pushing means 10 connected to it to reverse. Therefore, when the servo motor 32 of one of the driving means 30 is rotated forward, the other servo motor 32 is rotated in the opposite direction to the direction pushed in the transfer process of the coil, As shown by the solid line from the dotted line in 6b), the position of the coil C is pushed on the coil support 252 to compensate for the position.

      When the position compensation is performed in this way, since the coil C is in the correct position on the coil support 252, when the work is performed by the crane 300 at the exit side P2 of the transfer line, the coil support is caused by a moderate impact. Does not fall from 252 and fall.

      Therefore, according to the present invention, since both sides of the coil are supported by the pushing means 10 before the transfer operation of the coil at the inlet side P1 of the transfer line, the coil slips (slips) on the coil support 252 during the transfer of the coil. ) Is minimized. Then, after the coil is transferred to the exit side P2, the coil position movement on the coil pedestal 252 is again inspected, and the changed position is moved to the first predetermined normal position, thereby moving the coil (from the high speed bogie 250). C) Lifting work can be achieved without the coil conduction.

According to the present invention as described above, even if the surface of the hot cold coil is slippery in the process of transferring the cold rolled coil by the high speed bogie, and the vibration is applied during the progress of the high speed bogie, the cold rolled coil is moved by the pushing means operated by the driving means. Since the surface is supported, it is not conducted on the coil support and does not slip.

In addition, if the position of the coil is changed during the coil transfer process, the coil is detected at the exit of the transfer line and compensated for the changed position, so that the coil is positioned at the bogie on the bogie. The conduction of the coil does not occur on the bogie.

Accordingly, according to the present invention, it is possible to improve the productivity by smoothing the logistics flow of the coil transfer operation, as well as to prevent equipment damage by preventing the fall of the cold rolled coil, to prevent the shape defect rate of the cold rolled coil, etc. A useful effect of is obtained.

While the invention has been shown and described with respect to specific embodiments thereof, it has been described by way of example only to illustrate the invention, and is not intended to limit the invention to this particular structure. Those skilled in the art will appreciate that various modifications and changes of the present invention can be made without departing from the spirit and scope of the invention as set forth in the claims below. Nevertheless, it will be clearly understood that all such modifications and variations are included within the scope of the present invention.

Claims (5)

In the device for preventing the cold rolled coil from falling or slippage from the bogie in the process of transferring the cold rolled coil, A pair of pushing means disposed before and after the coil pedestal of the bogie and capable of moving straight along the guide toward the coil on the coil pedestal; A pair of drive means disposed on said pushing means, respectively, for moving said coil means forward and backward to move said coil on said coil rest; Sensor means mounted on one side of the trolley and detecting a distance to a coil on the coil pedestal and measuring a coil position on the coil pedestal; And And a control unit operatively connected to remotely drive the driving means, the control unit changing a coil position on the coil pedestal by receiving a signal from the sensor means and driving the driving means. During the movement of the trolley, the pushing means is fixed to the coil to fix the coil, and when the position of the coil is changed after the movement, the cold rolling coil conduction and slip of the high speed trolley are configured. Prevention device. The method of claim 1, wherein the pushing means are disposed before and after the coil pedestal of the trolley, the material of which is covered with a heat-resistant plastic synthetic resin material, etc., and the inside of which forms a female screw portion with an iron material, and the bottom thereof has a protrusion. Cold rolling coil conduction and slip prevention device of the high-speed bogie, characterized in that to move straight toward the coil along the guide to form.       According to claim 1, wherein the drive means is composed of servo motors (Serbo Motor) capable of forward and reverse rotation, the servo motor is firmly fixed to the upper surface structure on the high-speed bogie, the rotating shaft is mounted with a screw shaft Cold rolling coil conduction and slip prevention device of the high-speed bogie, characterized in that for screwing in the pushing means.       The method according to claim 1, wherein the sensor means is made of an ultrasonic sensor fixed at an appropriate height at the support target of the high-speed truck, the ultrasonic sensor measures the distance to the cold rolled coil on the coil pedestal, and then sends the signal to the controller Cold rolling coil conduction and slip prevention device of the high-speed bogie, characterized in that.       5. The apparatus of claim 4, wherein the ultrasonic sensor measures a distance between the coil at the inlet and the outlet of the balance transfer line and sends the distance to the controller. 6.

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