KR100931542B1 - Preventing breakage of belt ripper and end mark prevention of strip - Google Patents

Abstract

According to the present invention, a lower holder 43 having a curved surface is formed, an upper holder 42 having a curved surface, and the upper holder 42 so as to correspond to the lower holder 43. A pressing part which comprises a cylinder 41 for moving up and down to give a curved shape to the front end of the strip to prevent the belt ripper from breaking; A polishing roll (32) for removing the step of the strip tip portion, and a polishing roll driving portion (36) for driving the polishing roll (32) to prevent generation of end marks on the surface of the strip; And a guide roll 23 comprising a guide roll 23 for smooth movement of the strip, and a guide roll fixing portion 22 for moving the guide roll 23 up and down. Regarding the end mark prevention device of

According to the present invention, before winding the strip in the form of a coil in the annealing line or the recoiling line, the end shape of the strip is prevented by providing a curved shape at the tip of the strip to prevent breakage of the belt ripper and removing the step generated on the strip surface. It will prevent the occurrence.

Description

Device for preventing trouble of belt wrapper and end-mark of strip}

1 is a schematic view showing a conventional belt ripper for winding strips,

Figure 2 is an explanatory diagram showing the generation of the end mark of the strip by using a conventional belt ripper,

Figure 3 is a schematic diagram showing the configuration of the pressing portion of the belt ripper preventing breakage and the end mark prevention of the strip according to the present invention,

Figure 4 is a schematic diagram showing the configuration of the polishing portion of the belt ripper preventing breakage and the end mark prevention of the strip according to the present invention,

Figure 5 is an exploded perspective view showing the configuration of the guide roll portion of the belt ripper preventing breakage and the end mark prevention of the strip according to the present invention,

Figure 6 is a schematic diagram showing the operation of the device for preventing break of the belt ripper and the end mark prevention of the strip according to the present invention.

Explanation of symbols on the main parts of the drawings

10 .... strip 11 .... bell trapper

12 .... tension reel 13 ....

14 .... end mark phenomenon 18 .... sleeve                 

20 .... Guide roll lower bushing 21 .... Guide roll side bushings

22 Guide roll holder 23 Guide roll

23a.Guide roll fixing plate 24 .... Guide roll fixing plate

25 .... Guide roll fixing groove 30 .... Grinding roll insertion groove

31..Polishing roll support plate 32..Polishing roll

33 .... Bevel Gears, Second 34 .... Bevel Gears, Second

35..abrasive roll drive 36..abrasive roll drive

40..External support 41 .... cylinder

42..Top holder 43 .... Bottom holder

44..Guide bracket 45 .... Bracket fixing plate

46 .... Stopper 47 .... Sliding Turning

The present invention, in order to wind the iron plate in the form of a coil (COIL) in the annealing line or recoiling line of the cold rolling mill, to prevent the breakage of the belt wrapper (BELT WRAPPER) to induce the initial winding, the end mark of the coil The present invention relates to a device for preventing (END MARK), and more particularly, to give a curved shape to the front end of the strip (STRIP) to mitigate the impact when in contact with the ball trapper to prevent breakage of the belt ripper, and the surface of the strip The present invention relates to a device for preventing breakage of a belt ripper and end mark prevention of a strip to prevent end mark generation occurring during initial winding by polishing.

Equipment for making a cold rolled strip into a final product includes a shear for shearing the commercialized strip, a deflector roll for turning the strip tip to the tension reel, and a threading table for guiding the strip. ), Tension reel to wind strips, belt ripper to guide the initial winding on tension reel, snubber roll to complete the tensioning of the distal end of shear and shear coil Coil car for conveying the same.

The strip sheared in the shearing machine proceeds to a selected tension reel of a plurality of tension reels, and the direction is converted to the tension reel side by a direct roll installed on the tension reel, and the winding is made in the tension reel, wherein the tension reels are single Due to the impossibility of winding, a belt ripper is used as an auxiliary equipment for coil winding. That is, the belt wrapper wraps the tension reel so that the strip tip is wound on the tension reel by the guide of the belt ripper, and after the three wheels are wound so that the tension reel alone can be wound without the belt ripper, the belt ripper is out. There is a single winding by the tension reel.

At this time, the snubber roll is crossed to the coil outer winding so that the coiled outer winding can be wound freely without unwinding, and the rear end of the strip wound up without tension, the snubber roll is opened when the rear winding is completed, and the primary coil moves. The coil car, which is a facility, moves, draws a coil from the tension reel, and transfers it to a transfer car, which is a secondary transport facility. After that, the transported coil is transported to a working-bumper conveyor, which is a third transport facility, and then packed through a basis weight, marking, and bending. After packing in line, goods are received.                         

However, as shown in Fig. 1, when the strip 10 around 2-3MM is guided to the tensioning reel 12 for winding at a specific pressure by a conventional belt ripper 11, the front end of the strip 10 There is a problem that the phenomenon that the belt ripper 11 is broken frequently due to the angled portion.

In addition, as shown in FIG. 2, the end portion of the strip 10 is wound on the surface of the subsequent strip 10 wound by the angular portion of the tip portion of the strip 10 while the tip portion of the strip 10 is wound up by the tension reel 12. There was a problem that the mark occurs.

The present invention has been made to solve the above problems, before the winding of the strip by the tension reel, by pressing the strip end in a curved shape to prevent the break of the belt ripper, polishing the stepped portion of the strip end portion It is a technical object of the present invention to provide an apparatus for preventing breakage of a belt ripper and preventing an end mark of a strip which can prevent generation of an end mark generated on the surface of the strip by removing it.

In order to achieve the above technical problem, the apparatus for preventing breakage of the belt ripper and the end mark of the strip according to the present invention include a lower holder having a surface formed in a curved shape, and a surface having a curved surface so as to correspond to the lower holder. A pressing portion formed of an upper holder and a cylinder for moving the upper holder up and down to give a curved shape to the front end of the strip to prevent breakage of the belt ripper; A polishing roll comprising a polishing roll for removing the step difference of the strip tip portion, and a polishing roll driving portion for driving the polishing roll, to prevent generation of end marks on the surface of the strip; And a guide roll portion including a guide roll for smooth movement of the strip, and a guide roll fixing portion for moving the guide roll up and down.

The pressing unit may further include a stopper formed at an end portion of the upper surface of the lower holder to stop entry of the strip tip portion.

The polishing roll driving unit may include a polishing roll driving motor for generating power for driving the polishing roll, and a bevel gear for transmitting power generated by the polishing roll driving motor to the polishing roll. do.

Hereinafter, a preferred embodiment of the apparatus for preventing breakage of the belt ripper and the end mark prevention device of the strip according to the present invention will be described in detail with reference to the accompanying drawings.

The apparatus according to the present invention is largely a pressing part for pressing the leading end of the strip into a curved shape, a guide roll part for enabling smooth movement of the curved strip, and a strip leading end generated during shearing in the shearing machine. It consists of a polishing unit to remove the step.

3 shows a configuration of a pressing section for pressing a strip front end of a device according to the invention.

As shown, the pressing portion for pressing the leading end of the strip into a curved shape includes a lower holder 43, an upper holder 42, a stopper 46 for preventing entry of the strip, and the upper holder. It is composed of a cylinder 41 for pressing the 42 at a specific pressure, and in addition to the above components, the upper holder 42 is prevented from fluctuations that may occur when the cylinder 41 is operated up and down by the cylinder 41. The sliding bracket and the bracket fixing plate 45 for fixing the sliding bracket may be configured to further include.

In addition, in order to form a curved shape at the tip of the strip by the pressing operation by the pressing part, the upper surface of the lower holder 43 must be curved by the radius of curvature of the curved surface to be formed at the tip of the strip. In addition, since the upper holder 42 is provided with a curved shape at the tip of the strip by interaction with the lower holder 43, the lower surface of the upper holder 42 in contact with the lower holder 43 during the pressing operation It should be curved as much as the radius of curvature of the curved surface to be formed at the tip of the strip.

 In addition, the stopper 46 is formed at a predetermined height at the end of the upper surface of the lower holder 43 to stop the entry of the strip tip. That is, when the strip enters the pressing portion, the leading end of the strip is stopped by the stopper 46, at which time the upper holder 42 is lowered to come into contact with the lower holder 43 to give a curved shape to the leading edge of the strip. Done. However, the stopper 46 is not limited to being installed on the upper surface of the lower holder 43, but is provided at a position that can stop the progress of the strip when the strip tip portion is positioned on the upper surface of the lower holder 43. do.

The cylinder 41 is a driving device for raising and lowering the upper holder 42. For example, as shown in the drawing, the cylinders 41 are installed at both ends of the upper holder 42, respectively. It can be configured to enable the descent. That is, when the strip enters the pressing unit and stops by the stopper 46, the upper holder 42 is lowered to a preset pressure by receiving a signal from a control unit or a PLC unit (not shown). .

In addition, the operation of the pressing unit of the apparatus according to the present invention having the above configuration will be described below.

When the strip moves to the tension reel and is wound in the form of a coil, it passes through the belt ripper to assist the winding by the tension reel. The present invention is a device applied before the strip enters the belt ripper. After the strip enters the pressing part of the device according to the invention, when the tip of the strip is stopped by the stopper 46, the strip tip is positioned on the upper surface of the curved lower holder 43.

 As described above, when the end of the strip is stopped on the upper surface of the lower holder 43, when the cylinder 41 operates to lower the upper holder 42 to a constant pressure, the upper holder 42 is lowered to lower the holder. It comes into contact with the strip tip on the top of (43). In this case, since a predetermined pressure is applied to the upper holder 42 in contact with the strip front end by the cylinder 41, the strip front end has a radius of curvature formed on the surfaces of the upper holder 42 and the lower holder 43. A curved shape is achieved.

On the other hand, when the upper holder 42 is raised and lowered by the cylinder 41, in order to prevent the left and right swing of the upper holder 42, the pressing portion further the sliding bracket and the bracket fixing plate 45 It can be configured to include. The sliding bracket is composed of a sliding protrusion 47 fixed to one side of the upper holder 42, and a guide bracket 44 fixed to the bracket fixing plate 45, wherein the bracket fixing plate 45 is It is configured to be fixed to the external support device (40). Therefore, when the upper holder 42 is moved up and down by the cylinder 41, the sliding projection 47 fixed to the upper holder 42 is fixed to the bracket fixing plate 45 By moving up and down along the bracket 44, the upper and lower holders 42 which move up and down are prevented from shaking from side to side.

 4 schematically shows the configuration of the polishing part of the apparatus according to the invention.

As shown, the polishing part of the apparatus according to the present invention, the polishing roll 32 for removing the step formed on the surface of the strip, the polishing roll support plate 31 for supporting the polishing roll 32, the It consists of the polishing roll drive part 36 which drives the polishing roll 32. As shown in FIG.

The polishing roll 32 may be inserted into the polishing roll insertion groove 30 formed at the end of the lower surface of the upper holder 42, for example, but is not limited thereto. It can also be configured to install. The polishing roll 32 is supported by the polishing roll support plate 31, and the polishing roll support plate 31 is preferably configured to be fixed to both sides of the upper holder 42. The polishing roll driving unit 36 for driving the polishing roll 32 includes a polishing roll driving motor 35 that generates power for driving the polishing roll 32 and the polishing roll driving motor 35. Bevel gears (33, 34) for transmitting the power generated by the polishing roll 32 is configured. The polishing roll driving motor 35 may be installed on one side of the upper holder 42, or may be configured to be fixed to the external supporting device (40).

In addition, the bevel gears 33 and 34 are connected to the first bevel gear 34 and the first bevel gear 34 to be directly connected to the polishing roll driving motor 35 and the polishing roll 32. The second bevel gear 33 is fixed to one side of the), in this case, when the polishing roll driving motor 35 is operated, the first bevel gear 34 directly connected to the polishing roll driving motor 35 ) Is also operated, the rotational force of the first bevel gear 34 is transmitted to the second bevel gear 33, thereby rotating the polishing roll 32 is fixed to the second bevel gear 33 The surface of the strip passing underneath is polished.

Looking at the operation of the polishing unit having the configuration as described above are as follows.

When the strip passes through the lower end of the polishing roll 32 after the curved portion is formed at its tip end by the pressing portion, the polishing roll driving motor 35 is operated and is generated by the polishing roll driving motor 35. The power is transmitted to the polishing roll 32 by the bevel gears 33 and 34. When the polishing roll 32 is operated by the polishing roll driving unit 36 as described above, the polishing roll 32 polishes the surface of the strip passing through the lower end thereof to remove the step formed on the surface of the strip.

Figure 5 schematically shows the configuration of the guide roll portion of the apparatus according to the present invention.

As shown in FIG. 5, the guide roll part includes a guide roll 23 for smoothly moving the strip, and a guide roll fixing part 22 supporting the guide roll 23.                     

The guide roll fixing part 22 is a guide roll fixing plate 24 which is installed at both ends of the guide roll 23 for the vertical movement of the guide roll 23, the guide roll fixing plate 24 and In order to prevent wear of the guide roll 23, the guide roll side bush (21) and the guide roll lower bush (20) installed on the guide roll fixing plate 24, the guide roll fixing plate ( Inside the 24 is formed a guide roll fixing groove 25 for the connection of the guide roll (23). Then, at both ends of the guide roll 23, guide roll fixing protrusions 23a are inserted into the guide roll fixing grooves 25. Therefore, the guide roll 23 is configured to allow the guide roll 23 to move up and down by the guide roll fixing part 22. On the other hand, as shown in Figure 4, it is preferable that the guide roll portion is provided on the front surface of the pressing portion, so that the strip passes through the guide roll portion before reaching the pressing portion.

Looking at the operation of the guide roll having a configuration as described above are as follows.

The strip is guided by the guide roll 23 to enter the pressing portion and then stopped in the stopper 46, pressed by the pressing portion to form a curved shape at the front end thereof, By this step, the step formed on the surface is removed. After the strip is pressed and polished as described above, when the guide roll fixing part 22 raises the guide roll 23 by receiving a signal from the controller or PLC unit, the guide roll 23 is applied. The strip supported by it also rises, so that the strip tip moves to a position higher than the height of the stopper 46, so that the strip can continue to move without being blocked by the stopper 46.

Hereinafter, the operation of the apparatus according to the present invention having the above configuration will be described in detail with reference to the accompanying drawings.

Figure 6 shows the operating relationship of the anti-break of the belt wrapper and the end mark prevention device of the strip according to the present invention.

In the strip 10 moving from the tension reel to the belt ripper to be wound in the form of a coil, the tip of the strip 10 is guided by the guide roll 23 to enter the pressing part, and then the pressing part stopper 46 of the pressing part. When stopped by, the pressing part and the grinding part according to the present invention are operated. A curved surface is formed at the front end of the strip 10 by the pressing unit, and the step generated on the surface of the strip 10 by the polishing unit is removed, thereby completing the work by the pressing unit and the polishing unit. The upper holder 42 is raised, and the guide roll 23 is raised by the guide roll fixing part 22. When the strip 10 is raised by the guide roll 23 rising as described above, the tip of the strip 10 stopped by the stopper 46 is raised to leave the stopper 46 and then continue to move forward. It leaves the device according to the invention. As described above, the strip 10 having a curved shape is formed at the front end thereof by the apparatus according to the present invention, and the step 10 from which the step is generated on the surface is removed. It is wound in the form of a coil in the reel.

 According to the apparatus for preventing breakage of the belt ripper and end mark of the strip according to the present invention having the above configuration, before winding the strip in the form of a coil in the annealing line or the recoiling line, the belt is provided with a curved shape at the end of the strip. By preventing the breakage of the wrapper and eliminating the step generated on the surface of the strip, the end mark of the strip is prevented.

Claims (3)

A lower holder 43 whose surface is formed in a curved shape, an upper holder 42 whose surface is formed in a curved shape so as to correspond to the lower holder 43, and the upper holder 42 being moved up and down A pressing portion formed of a cylinder 41 to impart a curved shape to the strip front end to prevent the belt ripper from breaking; A polishing roll (32) for removing the step of the strip tip portion, and a polishing roll driving portion (36) for driving the polishing roll (32) to prevent generation of end marks on the surface of the strip; And a guide roll part including a guide roll 23 for smooth movement of the strip, and a guide roll fixing part 22 for moving the guide roll 23 up and down. The pressing unit, A sliding bracket composed of a sliding protrusion 47 fixed to one side of the upper holder 42 and a guide bracket 44 fixed to the bracket fixing plate 45; It is provided with a bracket fixing plate 45 which is fixed to the external support device 40, The guide roll fixing part 22 is a guide roll fixing plate 24 which is installed at both ends of the guide roll 23 for the vertical movement of the guide roll 23, the guide roll fixing plate 24 and In order to prevent wear of the guide roll 23, the guide roll side bush (21) and the guide roll lower bush (20) installed on the guide roll fixing plate 24, the guide roll fixing plate ( The inside of the 24, the guide roll fixing groove 25 for connecting the guide roll 23 is formed to prevent breakage of the belt ripper and the end mark prevention device of the strip. The method of claim 1, wherein the pressing portion, formed in the end of the upper surface of the lower holder (43) further comprises a stopper 46 for stopping the entry of the strip end of the stripper to prevent the stripper and stripping Endmark prevention device. The polishing roll driving unit 36 according to claim 1 or 2, wherein the polishing roll driving unit 36 includes a polishing roll driving motor 35 for generating power for driving the polishing roll 32, and the polishing roll driving motor 35. Bevel gears (33, 34) for transmitting the power generated by the polishing roll (32) to prevent breakage of the belt ripper and end mark prevention device of the strip.

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