KR100951271B1 - An apparatus for inspecting strip by using grind rolls - Google Patents

Abstract

The present invention relates to an apparatus for inspecting the surface of a strip using a grindstone roll. The present invention provides a grinding wheel roll unit including a grinding wheel roll having a plurality of grinding wheels assembled in a row in a roll frame on a housing set having a cylindrical structure at regular circumferential intervals, and having a motor for rotating the grinding wheel roll; A grinding wheel roll unit having rotary motors for rotating the respective grinding wheel sets on the housing set at high speed; In addition, the grindstone roll turning unit and the grindstone roll rotating unit has a grindstone roll moving unit having a pushing cylinder for advancing with respect to the strip; provides a strip inspection apparatus using a grindstone roll comprising a.

According to the present invention, in the friction scratch inspection process of the strip using the grinding wheel, even if uneven wear or breakage of the grinding wheel is taken out immediately after removing the grinding wheel roll, it is easy to repair the grinding wheel by replacing only the grinding wheel of the partial wear or broken part In addition, the improved effect is obtained so that a quick and accurate grindstone inspection work can be made by quickly replacing the grindstone rolls instead of the broken grindstone rolls.

Grindstone roll, strip surface inspection device, grindstone roll turning part, grindstone roll rotating part, friction scratch

Description

Strip inspection device using grindstone roll {AN APPARATUS FOR INSPECTING STRIP BY USING GRIND ROLLS}

1 is an explanatory diagram showing a strip inspection method using a grindstone according to the prior art;

2 is an external perspective view showing a strip inspection apparatus using a grinding wheel according to the present invention as a whole;

3 is an exploded perspective view showing the main part of the strip inspection apparatus using a grinding wheel according to the present invention;

4 is an operational state diagram of a strip inspection apparatus using a grinding wheel according to the present invention,

         a) the operating state of forming the friction defect using the grinding wheel roll,

         b) rotating the housing set to replace the new grinding wheel set

           condition;

5 is a block diagram of a grindstone roll rotating part of the strip tester using a grindstone roll according to the present invention,

         a) turning external appearance perspective view, b) turning motor exploded view,

         c) is a horizontal cylinder exploded view;

6 is an exploded perspective view of a grindstone roll set provided in a strip inspection apparatus using a grindstone roll according to the present invention.                 

       <Description of the symbols for the main parts of the drawings>

5 .... grindstone roll 5a .... grindstone roll set

7 .... roll frame 9 .... connecting shaft

12 .... Ring Nut 16 .... Housing Set

18 .... Bearing 20 .... Grinding Wheel Rolling Part

24 .... Drive motor 26 .... Central axis

28 .... Support frame 30 .... Lock

32 ... cylinder member 38 ... claw member

40 .... grinding wheel roll 44 .... drive motor

46 .... Horizontal Moving Cylinder 50 .... Guide

52 .... clutch member 80 .... grindstone roll moving part

84 .... Guide 88 .... Push Cylinder

90 ... position detection sensor 95 ... central control

100 .... strip 103 .... grindstone

105 .... roll 110 .... checkout

The present invention relates to an apparatus for inspecting the surface of a strip using a grindstone roll, and more particularly, in the friction scratch inspection process of a strip using a grindstone, even if uneven wear or breakage of the grindstone occurs, immediately after drawing out the grindstone roll. It is easy to repair grindstone rolls by replacing only abrasive wear or broken grindstone rolls. Strip inspection device using improved grindstone rolls for quick and accurate grindstone inspection work by quickly replacing new grindstone rolls instead of broken grindstone rolls. It is about.

In general, the strip inspection apparatus using the grinding wheel carried out in the cold rolling process of the steel mill, as shown in FIG. 1, the strip 100 is stopped or progressed on the inspection table 110 provided in the progress line of the strip 100. Contact the strip 100 by using the manual grindstone 103 in the strip 100 in a state of being in a state, and check the uneven portion of the strip 100 by using the friction flaw 100a that appeared on the surface of the strip 100. . And, by measuring the pitch of the fine concave-convex portion to grasp the state of the rolls 105 that are driven in contact with the strip 100 in the factory, to check the pitch of the concave-convex portion, the strip 100 and the rolls 105 of The process of eliminating defects is a common task.

In the case of this operation, the unevenness pitch can be confirmed only when the operator inspects using the grindstone 103 as much as the pitch of the roll 105 driven to the minimum during the inspection operation of the grindstone 103. The pitch measurement and the uneven defect elimination work must be confirmed.

However, this conventional work is because the grindstone inspection is repeatedly performed by manual work, the workload and worker fatigue increased, the evaluator of the grindstone inspection occurred. Therefore, if the defects in the uneven part are not removed in this way, complaints and claims are caused by the shipment of the defective product caused by this, and problems such as production decrease due to production stop due to work delay during the grindstone inspection are continuously generated. do.

As a conventional technique for solving such a problem, dozens of circular grinding wheels are installed in the lower part of a square frame (not shown) fixed on the online through which the strip 100 proceeds, and they are lifted up and down through a hydraulic cylinder (not shown). The friction scratch 100a was generated on the surface of the strip 100.

However, such a conventional structure has another problem of facility management, in which, if the grindstone is worn and broken during use and is to be replaced, the strip progress line must be stopped and then replaced. In addition, another conventional technique is to attach the one-letter and one-piece long grindstones to a predetermined device and perform the grindstone inspection while moving them in the left and right directions. However, it is a problem that the grindstone is one-piece when the wear or damage occurs, all the grindstones must be replaced, and the grindstone is installed on-line to stop the line when the grindstone is replaced.

In addition, as another conventional technique, a device for arranging the grindstones in a single row of the orbital type and driving in the width direction of the strip 100 to identify the irregularities of the strip 100 by the grindstone mark, or the small scale grindstone Since the work is arranged by multiple places, if the grindstone is broken, there is a problem that takes a long time to replace it, there is a problem that you need to quickly replace the roll.

The present invention is to solve the conventional problems as described above, the object is                         

In the process of inspecting the surface defects of the strip using the grindstone, if the grindstone roll is uneven or damaged, the grindroll roll is easily replaced by immediately replacing the grindstone roll of the uneven wear or the broken part. It is to provide a strip inspection apparatus used.

In addition, the present invention can be quickly replaced by a new grindstone roll to form a flaw on the surface of the strip can be made fast and accurate grindstone inspection work, by performing the movement and exchange of the grindstone using power, The present invention provides a strip inspection apparatus using an improved grinding wheel to reduce work load of an operator and improve work productivity.

In order to achieve the above object, the present invention, in the device for inspecting the surface of the strip using a grinding wheel,

A grindstone roll turning unit including a grindstone roll set having a plurality of grindstone rolls assembled in a row in a roll frame on a housing set having a cylindrical structure at regular intervals in a circumferential direction, and having a motor for rotating the grindstone roll set;

A grinding wheel roll unit having rotary motors for rotating the respective grinding wheel sets on the housing set at high speed; And,

And a grindstone roll moving part having a pushing cylinder for advancing and grinding the grindstone roll turning part and the grindstone roll rotating parts with respect to the strip to form a friction flaw on the surface of the strip using any one of a plurality of grindstone roll sets. By providing a strip inspection apparatus using a grindstone roll.

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

Strip inspection apparatus 1 using a grindstone roll according to the present invention, as shown in detail in Figure 2, a grindstone roll set (5a) is a large number of grindstone rolls 5 are assembled in a roll frame, and the grindstone roll set The grindstone roll turning part 20 which rotates 5a as a whole, and the grindstone roll rotating part 40 which rotates each grindstone roll at high speed are provided.

In addition, the present invention includes the grindstone roll set 5a, the grindstone roll turning part 20, and the grindstone roll rotating parts 40, which advance and retreat the strip 100 with respect to the strip 100.

The grindstone roll set 5a is formed in the uneven processing portion 7a on the surface of the cylindrical roll frame 7 made of steel, as shown in an exploded view in FIG. The grindstone rolls 5 are fitted and fixed, and both ends of the roll frame 7 are machined with a “U” -shaped groove 7b which is easily connected with the quick joint connecting shaft 9, and is outside the end. In the structure of the male screw (7c) that can be easily disassembled and combined with the ring nut 12 for fixing the grinding wheel (5).

The grindstone roll fixing ring nut 12 fixes a plurality of grindstone rolls 5 to the cylindrical roll frame 7, and a ring nut 12 is fitted to the outside of the grindstone roll housing set 16. Will be connected to the connecting shaft (9) to be mounted on each.

The housing set 16 which rotatably mounts the four grindstone roll sets 5a has a cylindrical body 16a, and both end sides thereof have a plurality of bolts for engaging with the housing side cover 16b. A hole is formed. In addition, four bearing block holes 16c are machined in the housing side cover 16b so that both connecting shafts 9 of the grinding wheel set 5a are rotatably mounted to the bearings 18. .

And, one side of the housing side cover (16b) is fixed to the ring gear 22 is formed on the inner circumferential surface and the outer circumferential surface, respectively, the grinding wheel roll portion engaging with the inner circumferential surface gear of the ring gear 22 ( The drive motor 24 of 20 is located.

This is because the center shafts 26 formed on both sides of the body 16a of the housing set 16 are rotatably fixed on the support frame 28 by bearing blocks 26a, respectively. When the pinion gear 24a connected to the rod rotates in the state coupled to the inner circumference surface 22a of the ring gear 22 by the operation of the drive motor 24 of the housing set 16 and the grinding wheel set 5a are all rotatable on the support frame 28 about the central axis 26 and the bearing block 26a.

And, the grindstone roll revolving part 20 further includes a locking part 30 for fixing the housing set 16 to a predetermined position when the housing set 16 is rotated to a predetermined position. The locking portion 30 is provided with a cylinder member 32 mounted horizontally on one side of the ring gear 22, the cylinder member 32 is a pillar member 34 formed vertically in the support frame 28 It is fixed in the middle of the rod (32a) is formed on the front claw (claw) member 38 is a tooth formed on the front surface of the ring gear 22 can be coupled to the tooth (22b).

Therefore, when the claw member 38 mounted on the rod 32a is engaged with the gear 22b of the ring gear 22 by the operation of the cylinder member 32, the ring gear 22 is engaged by the engagement between the gears. No further rotation is prevented and can be fixed in place.

Meanwhile, the grindstone roll rotating part 40 for rotating each grindstone roll set 5a on the housing set 16 is horizontal to one side of the support frame 28 as shown in FIGS. 2 and 5. The pedestal 42 is mounted, and the pedestal 42 has a drive motor 44 and a horizontal moving cylinder 46 for horizontally moving the drive motor 44. The horizontal moving cylinder 46 is a rod 46a is fixed to the slide plate 48 of the lower surface of the drive motor 44, the slide plate 48 to which the drive motor 44 is mounted is the pedestal 42 The back and forth advance is possible in the guide 50 of the j-shaped cross section of the (), and the said slide plate 48 corresponds to the longitudinal direction of the grindstone roll set 5a.

One end of the clutch member 52 is connected to the end of the rotation shaft of the drive motor 44, and the other end of the clutch member 52 is connected to one side of the shaft 9 of the grinding wheel set 5a. It is fixed through. Accordingly, the clutch members 52 are configured such that the clutch members 52 are engaged or separated by the drive motor 44 moving forward and backward toward the grinding wheel set 5a.

The grindstone roll rotating part 40 is operated by the drive motor 44 in a state in which the driving motor 44 is advanced by the horizontal moving cylinder 46 toward the grindstone roll set 5a and the clutch members 52 are coupled to each other. The grindstone roll set 5a is thus rotatable at high speed through the bearing blocks 18 of the housing set 16. As described above, the grindstone roll rotating part 40 is rotated when the grindstone roll set 5a is coupled to each of the grindstone roll sets 5a through the clutch member 52.                     

According to the present invention, the grindstone roll set unit 5a, the grindstone roll turning unit 20, and the grindstone roll moving unit 80 for advancing and supporting the support frame 28 equipped with the grindstone roll rotating units 40 with respect to the strip 100 are provided. It is provided.

As shown in FIGS. 3 and 6, the grindstone roll moving part 80 includes a support plate 86 having a guide 84 having a cross-section on both sides thereof, on which the support frame 28 is slidably mounted. Is provided, one side of the support plate 86 is provided with a pushing cylinder 88, the rod 88a is coupled to the support frame 28. The pushing cylinder 88 is hydraulically actuated, and allows the support frame 28 to move forward and backward on the support plate 86.

In addition, the support plate 86 is supported by a structure (not shown) and is disposed horizontally on one side of the strip progress line.

Reference numerals are a plurality of position detection sensors 90, which detect the positions of the respective mechanical parts as necessary, and send electrical signals to the central control unit 95. As such, the technique for the sensors 90 to detect the positions of the component parts and transmit a signal may be performed using conventional techniques in the art, and thus a detailed description thereof will be omitted.

In the present invention configured as described above, as shown in FIGS. 4A and 4B, the grinding wheel roll sets 5a may be moved forward and backward with respect to the strip 100 by the operation of the grinding wheel moving unit 80. In addition, the grinding wheel sets 5a are rotatable on the housing set 16 by the operation of the drive motor 44 of the grinding wheel rotation part 40.

The grindstone roll sets 5a are also mounted on the housing set 16 and rotatable relative to the support frame 28.

In the present invention, when the frictional flaw 100a is to be formed on the surface of the strip 100, as shown in FIG. 4A, any one of the four sets of the grindstone roll sets 5a is the strip 100. Make contact with the surface. To this end, the pushing cylinder 88 of the grindstone roll moving part 80 allows the support frame 28 to move forward on the support plate 86, and the driving motor 24 of the grindstone roll turning part 20 is operated to operate the housing. The housing set 16 is rotated such that any one of the four grindstone roll sets 5a mounted to the set 16 contacts the strip 100.

When the grindstone roll set 5a contacts the surface of the strip 100 as shown in FIG. 4A, the cylinder member 32 of the locking portion 30 is operated so that the claw member 38 is formed of the ring gear 22. To the outer peripheral gear 22b, and fix the housing set 16 in that position.

Then, when the position of the grindstone roll set 5a by the claw member 38 is fixed, the drive motor 44 of the grindstone roll rotating part 40 is operated to contact the strip 100 with the grindstone roll set 5a. ) To rotate. When the grinding wheel set 5a is rotated in this manner, the grinding wheel 5 forms the friction flaw 100a on the surface of the strip 100.

Of course, the grinding wheel roll (5a) in contact with the strip 100 in the above should be coupled to the drive motor 24 of the grinding wheel turning unit 20, the rotation shaft and grinding wheel set of the driving motor 24 ( The coupling of 5a) is made using the clutch member 52 as described above.

In this way, in the process of forming the friction flaw 100a on the surface of the strip 100, any part of the grindstone roll set 5a, which is currently used in contact with the strip 100, is excessively worn out to cause uneven wear. In the case of replacement, the operator operates the pushing cylinder 88 of the grindstone roll moving part 80 so that the supporting frame 28 is somewhat retracted from the strip 100.

Then, in such a state, the clutch members 52 are separated from each other by using the horizontal moving cylinder 46 of the grindstone roll rotating part 40, and the cylinder member provided in the locking part 30 of the grindstone roll turning part 20. (32) is operated so that the claw member 38 is separated from the gear 22b of the outer circumferential surface of the ring gear 22. As shown in FIG. When the driving motor 22 of the grindstone roll turning part 20 is operated in such a state, the pinion gear 24a provided on the rotating shaft rotates the inner circumferential surface 22a of the ring gear 22 so that the ring gear ( The housing set 16 is rotated on the support frame 28 through 22.

When rotated in this way, the already used grindstone roll set 5a is moved downward in the horizontal state, and the new grindstone roll set 5a in the unused state is moved by turning to the horizontal position toward the strip 100. In the process of changing the position, the plurality of sensors 90 mounted on the support frame 28 transmit a signal such that the rotation of the housing set 16 is performed over approximately 90 °, and the controller 95 To adjust through.

When the new grindstone roll set 5a is kept horizontal in this manner, the horizontal movement cylinder 46 is applied to the clutch member 52 of the new grindstone roll set 5a by using the horizontal moving cylinder 46 of the grindstone roll rotating part 40. ), The clutch member 52 of the lock member 30 is engaged, and the cylinder member 32 of the lock part 30 is operated so that the claw member 38 is engaged with the outer gear 22b of the ring gear 22, and the position thereof. Secure the housing set (16).

Then, the pushing cylinder 88 of the grindstone roll moving part 80 is operated so that the support frame 28 is somewhat advanced toward the strip 100, and thus the grindstone roll set 5a by the claw member 38 is thus. ) Is fixed, the drive motor 44 of the grindstone roll rotating part 40 is operated to rotate the grindstone roll set 5a in contact with the strip 100. In this way, friction scratches 100a are generated on the surface of the strip 100 using the new grindstone roll set 5a.

As described above, according to the present invention, the worker's work fatigue can be reduced by performing the grindstone test using the grindstone roll set 5a to reduce the amount of defects caused by the conventional grindstone evasion phenomenon. Can be.

In addition, when the grindstone inspection is not possible due to the grindstone roll failure during the grindstone inspection, it is possible to reduce the grindstone inspection dead time by the quick turning operation. There is an effect such as being able to operate.

Claims (5)

In the device for inspecting the surface of the strip 100 using a grinding wheel, A motor 24 for mounting a grindstone roll set 5a in which a plurality of grindstone rolls 5 are assembled in a row in a roll frame 7 on a housing set 16 having a cylindrical structure at regular circumferential intervals and rotating the same. Grinding roll turning unit 20 provided with; A grinding wheel roll unit 40 having rotary motors 44 for rotating the respective grinding wheel sets 5a on the housing set 16 at high speed; And, A plurality of grindstone roll sets 5a including; a grindstone roll moving part 80 having a pushing cylinder 88 for advancing the grindstone roll turning part 20 and the grindstone roll rotating parts 40 with respect to the strip 100. Strip inspection apparatus using a grindstone roll, characterized in that to form a friction flaw (100a) on the surface of the strip (100) using any one of. The grindstone roll turning portion (20) is provided with a housing set (16) for rotatably mounting four grindstone roll sets (5a), both sides of which are positioned with housing side covers (16b). In addition, one side of the housing side cover (16b) is fixed to the ring gear 22 is formed on the inner circumferential surface and the outer circumferential surface, the drive motor for engaging and engaging the inner circumferential surface (22a) of the ring gear 22 While 24 is positioned, the central shafts 26 formed on both sides of the body 16a of the housing set 16 are rotatably fixed on the support frame 28 by bearing blocks 26a, respectively. Strip grinding device using a grinding wheel roll, characterized in that configured to rotate the housing set (16) through the ring gear 22 by the operation of the drive motor (24) of the grinding wheel turning unit (20). The grinding wheel turning unit 20 further includes a locking unit 30 for fixing the housing set 16 to a predetermined position when the housing set 16 is rotated to a predetermined position, and the locking unit 30. ) Has a cylinder member 32 mounted horizontally on one side of the ring gear 22, and a claw member 38 having a tooth formed on its front surface is formed on the rod 32a of the cylinder member 32. It is formed and configured to be coupled to the outer peripheral surface teeth 22b of the ring gear 22, the claw member 38 is coupled to the teeth 22b of the ring gear 22 by the operation of the cylinder member 32 Ground, the housing set 16 is strip inspection apparatus using a grinding wheel, characterized in that the fixed position. According to claim 1, wherein the grindstone roll moving portion 80 is provided with a support plate (86) having a guide (84) on both sides of the U-shaped cross section on which the support frame (28) is slidably mounted. One side of the support plate 86 is provided with a pushing cylinder 88, the rod 88a is coupled to the support frame 28, the pushing cylinder 88 is transferred to the support frame 28 on the support plate 86 , The support plate 86 is supported on a structure (not shown), the grindstone roll, characterized in that configured to advance and reverse the grinding wheel set (5a) with respect to the strip (100) Strip inspection device using. According to claim 1, wherein the grinding wheel set (5a) is formed on the surface of the cylindrical roll frame (7) made of steel (Steel) irregularities processing portion (7a), the outer surface of the plurality of grinding wheel roll (5) And a U-shaped groove 7b which is easily connected to the quick joint connecting shaft 9 is formed at both ends of the roll frame 7, and a grindstone roll 5 is disposed outside the end. ), While the external thread 7c, which can be easily disassembled and combined with the ring nut 12, is fixed to the ring nut 12, the ring nut for fixing the grindstone roll 12 is a plurality of the grindstone rolls 5 of the cylindrical roll. Strip inspection device using a grinding wheel, characterized in that to be fixed to the frame (7).

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