KR20020051266A - Apparatus for examining the surface default of the coil product - Google Patents

Abstract

PURPOSE: A surface defect inspection apparatus for coil product is provided to achieve an optimum productivity, reduced cost and in-advance prevention against accident, by automating surface defect inspection process. CONSTITUTION: A surface defect inspection apparatus comprises a coil rotating unit(100) for loading a coil(10), and unwinding the coil to the inspection position and winding the coil after completion of the inspection; a coil reducing unit(200) for preventing the front end of the coil from moving in the opposite direction during coil winding or unwinding operation; a table unit(300) for advancing the released front end of the coil; a tension transfer unit(400) for transferring the front end of the coil by providing tension to the front end, and maintaining tension at an iron sheet during cutting; a cutter(500) for cutting the defective part of the iron sheet; an inspection unit(600) for performing surface test and shape test for the front and rear surfaces of the iron sheet; a pipe unit for feeding air or hydraulic pressure; and a control unit for controlling the system.

Description

Apparatus for examining the surface default of the coil product}

The present invention relates to a device for inspecting the surface defects of the coil produced in the final cold rolling mill, more specifically to enhance the inspection on the surface and shape of the periodic outer circle, and can be a safety operation during the selection of defective parts The present invention relates to a device for inspecting surface defects of coils that has automated the work.

In general, coils produced in cold rolling mills are supplied to the consumer as a final product, but when the iron plate surface is defective during the production process or when the iron plate is wound with coils, the last few wheels cannot be wound normally. The meandering phenomenon may occur.

In this case, it is necessary to loosen the coil and inspect the shape and defect of the coil, and if a defective part is found, it is necessary to remove it or rewind the meandering part normally. However, since most cold rolling mills are not provided with shape inspection and removal of defective parts, in order to inspect and correct the shape and defects of the coil, after transporting the defective coil to the recoiling line, Winding work is carried out. Therefore, manufacturing cost increases due to prolonged production air and reprocessing.

As a countermeasure against this, in the case of a coil having a slight defect, the coil was lifted by a crane, and the coil was manually unwrapped, and the defective part was removed using a manual shear.

However, such an operation is difficult to inspect the surface of the coil, and may also cause another defect during the inspection operation, in particular the risk of a safety accident by the operator performing the work under the heavy weight.

The present invention has been made to solve the conventional problems as described above, to enable the smooth flow of the process, to improve the surface inspection efficiency of the coil product, and to prevent the safety accident during manual work by automation. It is an object of the present invention to provide a device for inspecting surface defects of coils.

1 is a block diagram of a surface defect inspection apparatus according to the present invention.

Figure 2 is a schematic diagram showing a coil rotating device of the surface defect inspection apparatus according to the present invention.

Figure 3 is a schematic diagram showing a coil reduction device of the surface defect inspection apparatus according to the present invention.

Figure 4 is a view showing a mail order table unit of the surface defect inspection apparatus according to the present invention, (a) is a side view, (b) is a rear view.

Figure 5 is a schematic diagram showing a tension transfer device of the surface defect inspection apparatus according to the present invention.

6 is a view showing a cutter of the surface defect inspection apparatus according to the present invention.

7 is a schematic view showing a surface inspection apparatus of the surface defect inspection apparatus according to the present invention.

<Description of Symbols for Major Parts of Drawings>

100: coil rotating device

200: coil reduction device

300: table unit

400: tension transmission device

500: cutter

600: surface inspection device

In order to achieve the above object, according to the present invention, the device for inspecting the surface defects of the coil product is to guide the coil rotating portion to which the coil is rotatably seated, and the tip of the coil released by the rotation of the coil rotating portion. It is characterized in that it consists of a guide means for and a surface inspection unit for inspecting the surface of the coil is located at the end of the traveling path of the coil via the guide means.

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

First, referring to Figure 1, the surface defect inspection device of the coil according to the present invention in the state in which the coil 10 is wound coiled unwind the tip of the coil to the inspection position and coil rotation to rewind it after the surface inspection is completed The device 100, the coil lowering device 200 for preventing the coil tip from falling in the opposite direction during the coil unwinding and rewinding operation, the plate table unit 300 for smoothly advancing the released coil tip, and the tip of the coil. Tension transfer device 400 to transfer the tension to the inspection position and maintain the tension on the iron plate during the cutting operation, a cutter 500 for cutting the scrap iron and processing the scrap, surface inspection of the front and back of the iron plate and It consists of an inspection device 600 that performs a shape inspection, a piping device that supplies air or hydraulic pressure, and a control device that tracks and manages the coil to be inspected and controls the system. Lost

As shown in FIG. 2, the coil rotating apparatus 100 includes a motor 101 for generating rotational force so that rotation of the mounted coil 10 is possible, a chain-sprocket 102 for transmitting rotational force, The roll 103 is configured to load the coil and rotate the coil by using the rotational force of the motor, and the support 104 supports the above facilities.

Referring to FIG. 3, the coil reduction device 200 includes a support 201 for supporting a facility, a swing arm 203 rotatably coupled to the top of the support 201 by a pin 202, and It is comprised by the rolling roll 205 attached to the terminal part of the swing arm 203, and giving a rolling force to the coil 10, and the air cylinder 204 for turning the swing arm 203 to an up-down direction.

Referring to FIG. 4, the plate table unit 300 for advancing the coil tip to the tension transmitting device 400 includes a sensor 308 for detecting the position of the coil tip and a guide chute for assisting the coil in normal operation. 305 and 307, a motor 301 for generating a rotational force for rotating the guide chute at a predetermined angle corresponding to the position of the coil tip detected by the sensor, and a rotating shaft for rotating the guide chute using the motor rotational force ( 302 and an air cylinder 306 for bringing the guide chute 307 into contact with the coil in response to a coil outer diameter change during the inspection operation.

Referring to FIG. 5, the tension transmitting device 400 which applies tension to the coil front end to help the normal progress of the coil to the inspection position and press the iron plate in front and rear of the cutter so that the iron plate can be easily cut when the cutter 500 operates. Upper and lower rolls 405 and 407 for applying tension to the steel plate and advancing the tip, and an air cylinder 403 for changing the position of the upper roll 405 according to the use condition and applying a pressing force to the upper roll. And, to give a rotational force to the upper roll is composed of a motor 401 to allow the iron plate to proceed, and a support 402 for supporting the facility.

Referring to FIG. 6, the cutter 500 for cutting the defective part of the iron plate inspected by the inspection apparatus 600 moves the knife 505 and 508 for cutting the iron plate and the lower knife 505 up and down to cut the iron plate. Link devices 503 and 504 for making this possible, a hydraulic cylinder device 501 for operating the link device to impart shear force to the lower knife, a guide block 506 for smoothly guiding the vertical movement of the lower knife, It consists of a fixed beam 507 for fixing the upper knife 508, and a support 502 for supporting the equipment.

Referring to FIG. 7, the inspection apparatus 600 irradiating the surface of the iron plate advanced from the coil rotating device 100 moves up and down so that the oil-coated iron plate may proceed to the final position without being attached to the inspection table 601. A possible guide roller 603, an air cylinder 602 for moving the guide roller up and down, a sensor 604 for stopping the operation of other equipment by detecting a state where the tip of the iron plate has advanced to a position that can be inspected, and an operator It is comprised by the inspection table 601 which inspects the temporary iron plate surface.

Referring to the operation of the coil surface inspection apparatus according to the present invention having such a configuration as follows.

First, when the preparation of the inspection work is completed in the state in which the coil 10 is placed on the top of the rotary roll 103 of the coil rotating apparatus 100, the air cylinder 204 attached to the coil lowering device 200 operates to reduce the pressure. The roll 205 is pressed onto the coil upper end. Then, the plate table rotating motor 301 is driven to rotate the guide chute 305 at an appropriate angle in consideration of the coil outer diameter and the position of the coil tip, and the air cylinder 306 for length compensation according to the coil outer diameter change. To move the two-stage guide chute 307 to the coil position.

When power is supplied to the coil rotating device driving motor 101, a rotational force is generated, and the coil is seated on the upper part of the rotating roll when the rotating roll 103 is rotated by the chain sprocket 102 after being decelerated at a constant speed by the reducer. As the 10 is rotated, the coil tip is transferred to the tension transmitting device 400 through the guide chutes 305 and 307.

When the open upper roll 405 of the tension transmitting device contacts the lower roll 407 by the air cylinder 403, the upper roll and the lower rolls 405 and 407 are driven by the motor 401 so that the coil tip is Provide tension to continue in the future.

When the sensor 604 detects that the coil tip has reached the inspection position of the inspection apparatus 600, the coil rotating apparatus motor 101 and the tension transmission apparatus motor 401 stop.

The worker confirms that all the equipment is stopped and inspects the shape and defects of the surface of the iron plate in the inspection table 601, and cuts the iron plate defective part using the automatic cutter 500 when the inspection result requires the cutting operation. The cutter 500 is capable of being cut by the lower knife 505 being lifted by the linkage devices 503 and 504 by the operation of the hydraulic cylinder 501 while the upper knife 508 is fixed.

After the inspection work is completed, the inspection of the steel plate is completed by rotating the coil of the coil and the upper part of the tension transmission device 405 by rotating the coil in reverse.

On the other hand, the coil defect inspection apparatus of the present invention as described above can automate the entire process excluding the inspection work of the operator. This is to perform a series of optimal operation control using a program control through a facility control computer (not shown) or a control device such as a separate PLC.

This automatic control method and configuration will be easily implemented using techniques known in the art, so a detailed description thereof will be omitted.

Therefore, according to the present invention, by using an automatic control process to inspect the surface defects of the coil product, it is possible to achieve the optimum work productivity, to reduce the work cost, and to prevent safety accidents due to manual work. have.

The foregoing is merely illustrative of the preferred embodiments of the present invention and those skilled in the art to which the present invention pertains may make modifications and changes to the present invention without departing from the spirit and gist of the invention as set forth in the appended claims. It should be recognized.

Claims (4)

Apparatus for inspecting surface defects of coil products, A coil rotating part in which the coil is rotatably seated; Guide means for guiding the tip of the coil released by the rotation of the coil rotating unit; The surface defect inspection apparatus of the coil, characterized in that it consists of a surface inspection unit for inspecting the surface of the coil located at the end of the progress path of the coil via the guide means. The method of claim 1, The guide means comprises a pair of rolls and driving means for driving the rolls, the surface defect inspection apparatus of the coil, characterized in that it comprises at least one tension transmission device for providing a tension to the tip of the coil. The method of claim 2, The surface defect inspection apparatus of the coil, characterized in that the cutting means for cutting the surface defect of the coil on the entry or exit side of the tension transmission device. The method of claim 1, And a coil lowering device including a roller for detachably pressing the upper part of the coil released from the coil rotating part and a swing member for swinging the roller in an up and down direction.