KR100787583B1 - Cutting apparatus of deflecting welding part of cooled rolling plate - Google Patents

Abstract

The present invention relates to an apparatus for automatically cutting the width deviation generated in the welding portion of the preceding and the following base material in the production line of the cold rolled steel sheet with the cold rolled coil,

 In the apparatus for cutting the width deviation portion of the leading base material and the trailing base material of the welded cold-rolled steel sheet, a pair of apron rail 102 is installed perpendicular to the main base 101, the apron based on the traveling direction of the base material, The shift guide rail 108 is interposed between the shift stoppers 107 which are inserted through the rails 102 and are connected to the apron drive motor 103 so as to be transferred from side to side of the base material. ) Is provided with a pair of aprons 105, one end of the apron 105 through the shift fixed shaft 112 is connected to the apron 105, the other end of the apron 105 A left and right conveying and shifting part 100 connected to a shift hydraulic cylinder 109 attached thereto and provided with a pair of shift boards 115 circumferentially moving along the shift guide rail 108, and the shift boards 115. The pinion 206 meshing with the rack 202 attached to the outer side of the upper part is connected to the front and rear transfer motor 204 to advance the base material along the knife housing guide rail 203 attached to the inner side of the shift board 115. Front and rear conveying unit 200 having a pair of knife housing 208 forward and backward parallel to the direction, and the cylindrical upper knife 305 and the lower knife 306 on the opposite side of the knife housing 208 It is configured to include a cutting portion 300 is installed to be parallel to each other up and down and formed to cut the width deviation portion by the rotation of the cutting drive motor 301.

Left and right feed and shifting part, apron, shift board, front and rear feed part, cutting part, scrap processing part

Description

Cuttering apparatus of deflecting welding part of cooled rolling plate

Figure 1a, 1b is a state diagram of the cutting operation by the side creeping shear for the conventional A-Mode.

2A is a state diagram in which a base material having a cutting point of a conventional welding portion width deviation portion passes through a roll of a production line;

Fig. 2B and Fig. 2C are diagrams of a defective part of the cut portion of a conventional welded part width deviation portion;

3 is an overall configuration diagram of a cutting device according to an embodiment of the present invention.

Figure 4 is a block diagram of the left and right transfer and shifting portion constituting the present invention.

5 is a configuration diagram of the front and rear conveying portion constituting the present invention.

6 is an exploded detail view of a cutout portion of the present invention.

Figure 7a is a working state diagram of the A-Mode according to an embodiment of the present invention.

FIG. 7B is a cutaway view of the strip by the operation of FIG. 7A; FIG.

8A is a working state diagram of the B-Mode according to the embodiment of the present invention;

8B is a cutaway view of the strip by the operation of FIG. 8A.

<Description of Symbols for Major Parts of Drawings>                 

100: left and right feed and shifting unit 101: main base

102: apron rail 103: apron drive motor

104: two-way screw 105: apron

106 Home Position Sensor 107: Shift Stopper

108: shift guide rail 109: shift hydraulic cylinder

111: shift operation groove 112: shift fixed shaft

113: PLC 115: shift board

200: front and rear transfer section 202: rack

203: knife housing guide rail 206: pinion

300: cutting unit 301: knife driving motor

302: holder 303: taper shaft

304: clearance liner 305: upper knife

306: lower knife 308: fixed block

401 Scrap Conveyor 402 Scrap Box

The present invention relates to an apparatus for automatically cutting a portion in which a width deviation between a leading base material and a trailing base material occurs after welding a leading base material and a trailing base material in a production line of a cold rolled steel sheet having a cold rolled coil. More specifically, the present invention relates to an apparatus for preventing line troubles caused by defective parts caused by uneven tension by cutting a portion where a width deviation occurs in the longitudinal direction of the base material.

In general, when there is a deviation between the width of the leading material and the trailing material during welding by connecting the leading material and the trailing material in the production line working with cold rolled coil, that is, the width of the leading material is smaller than the width of the trailing material. In this case (hereinafter referred to as A-Mode), or when the width of the leading base material is larger than the width of the trailing base material (hereinafter referred to as B-Mode), the cutting operation is performed using the side clipping shear. .

At this time, the edge of the cut portion interferes with the equipment, and overlapping occurs, and defective parts due to the tension non-uniform action have been a cause of line trouble.

Conventionally, as shown in the state diagram of cutting operation by the side clipping shear for the conventional A-Mode of FIG. 1A, in the case of A-Mode in which the width of the preceding base material S1 is smaller than the width of the trailing base material S2, the preceding base material (S1) and the welding portion (W) of the trailing base material (S2) is stopped in the center of the side clipping shear (10), the side clipping shears (10) of both sides are advanced by the power of the hydraulic cylinder (15), the photosensor When detected by (Photo Sensor; 13), after the leading and trailing base materials S1 and S2 are stopped, the hydraulic cylinder 14 is lowered and the width deviation portion by the conventional device of FIG. 1B by the side clipping shear 10 is shown. As shown in the cut-off state diagram, the width deviation portion is cut.

2A is a state diagram in which a base material having a cut point of a conventional weld width deviation portion passes through a roll of a production line. When passing through a roll, the phenomenon which overlaps with the cutting | disconnection part of a base material arises, as shown in the defect part state diagram of the conventional cutting part width deviation part of FIG. 2B, FIG. 2C.

When the conventional apparatus is used as described above, when one part of the base material overlaps, there is a problem that a defective part is generated due to the tension unevenness and causes a line trouble.

In particular, the occurrence of defective parts due to the overlap in the continuous annealing line has a problem that the fatal effect on the decrease in productivity and cost.

The present invention was invented to solve the problems in the prior art as described above, by cutting the width deviation portion of the leading and trailing base material in the tapered form to prevent the overlapping phenomenon caused by interference with the production equipment, It is an object of the present invention to provide an apparatus for cutting the width deviation portion of a cold rolled steel sheet weld portion that uniformly disperses the tension acting on the base material.

In the device for cutting the width deviation portion of the cold rolled steel sheet welded portion of the present invention for achieving the above object, in the device for cutting the width deviation portion of the leading and trailing base material of the cold rolled steel sheet welded portion,

A pair of apron rails 102 are installed vertically on the main base 101 based on the traveling direction of the base material, and are bidirectional screws connected to the apron drive motor 103 so as to be moved left and right along the apron rails 102. A pair of aprons 105 provided with a shift guide rail 108 are installed between the shift stoppers 107 inserted through the 104 and protrudingly attached to the upper surfaces on both sides, and the upper portion of the aprons 105 installed. A pair of shifts circumferentially moved along the shift guide rail 108 by a shift hydraulic cylinder 119 attached to a lower portion of the apron 105 at one end thereof is connected through the shift fixed shaft 112. The left and right transfer and shifting unit 100, the board 201 is installed,

The front and rear conveying unit 200, the rack 202 is provided on the outside of the shift board 201, the knife housing guide rail 203 is installed in parallel to the traveling direction of the base material,

Including the cutting portion 300 is meshed with the rack 202 and the cylindrical upper knife 305 and the lower knife 306 are installed parallel to each other up and down to cut the width deviation of the base material along the knife guide rail 203 Characterized in that configured.

In the present invention, the scrap conveyor 401 is installed in the lower portion of the apron 105 to be parallel to the direction of advance of the base material, and the scrap processing unit 400 provided with a scrap processing box 402 further below. Characterized in that configured to include.

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

3 is an overall configuration diagram of a cutting device according to an embodiment of the present invention, Figure 4 is a block diagram of the left and right conveying and shifting portion constituting the present invention, Figure 5 is a block diagram of the front and rear conveying portion constituting the present invention 6 is an exploded detailed view of a cutting unit constituting the present invention, FIG. 7A is a working state diagram of the A-Mode according to the embodiment of the present invention, FIG. 7B is a cutting state diagram of the strip by the operation of FIG. 7A, Figure 8a is a working state diagram of the B-Mode according to an embodiment of the present invention, Figure 8b is a cutting state diagram of the strip by the operation of Figure 8a.

The present invention, as shown in the overall configuration of the cutting device according to the embodiment of the present invention of Figure 3, apron (105) is largely provided with a shift board 115 on top, apron 105 is the center The screw thread is symmetrically formed on the basis of this, and is moved left and right according to the width of the base material by the bidirectional screw (104). Variablely selectable left and right conveying and shifting unit 100, the front and rear conveying unit 200 for conveying the cutting device back and forth in the longitudinal direction of the base material, and a cutting unit for cutting the width deviation portion of the leading and trailing base material (Knifing Unit; 300) and a scrap processing apparatus 400 for processing the cut width deviation scrap.

First, as shown in the left and right conveying and shifting unit 100 constituting the present invention of Figure 4, the main base (101) is fixed to the floor and the apron rail (Apron Rail; 102) on the top It is installed vertically based on the advancing direction of the base material.

And the apron 105 is guided by the apron rail (102) and the bidirectional screw (104) installed connected to the apron drive motor (Apron Drive Motor) 103 so as to be transferred to the left and right of the base material is inserted through, Shift stoppers 107 protrude from both upper surfaces of the apron 105, and a pair of shift guide rails 108 are formed between the shift stoppers 107, respectively.                     

One end of the apron 105 and the shift board 115 is penetrated by the shift fixing shaft 112, the shift fixed to the front end of the shift hydraulic cylinder 109 attached to the lower end of the apron 105 The shift board 115 is fixed on top of the device 110.

The shift board 115 is a pair of along the shift guide rail 108 around the shift fixed shaft 112 by the shift hydraulic cylinder 109 in the shift operation groove 111 formed in the apron 105. The shift board 115 is installed to adjust the taper angle of the width deviation portion of the base material by the circumferential movement in the opposite direction.

A home position sensor 106 installed at one end of the apron rail 102 controls the home position of the apron 105, and a shift stopper 107 of the shift board 115. The shifting degree, that is, the amount of rotation of the shift board 115 is limited, and the PLC 113 connected to the apron drive motor 103 automatically controls the right and left feed amount of the apron 105 according to the width of the base material. can do.

Next, as shown in the configuration diagram of the front and rear conveying unit 200 constituting the present invention of FIG. 5, the rack (202) and the knife housing (208) provided on the upper side of the shift board (115). The pinion 206, which is installed and connected to the front and rear transfer motor 204, is engaged.

The knife housing 208 linearly reciprocates back and forth along the knife housing guide rail 203 after the power of the front and rear transfer motor 204 is decelerated by the reducer 205.

Next, as shown in the exploded view of the cutout constituting the present invention of Figure 6, the knife drive for adjusting the gap (Gap) of the upper knife (Top Knife) 305 and the bottom knife (306) Knife (306) The motor 301 is installed, the holder 302 fixes the taper shaft 303, and the gap liner 304 fitted to the taper shaft 303 is tapered. .

The upper knife 305 attached to the gap liner 304 performs a fine taper movement and maintains a cutable gap with the lower knife 306 fixed to the block 308 and at this time, a gap. The degree of Gap is automatically controlled by the value detected by the PLC 310 attached to the motor 301.

The upper and lower knives 305 and 306 are fixed to the knife shaft 307 by fixing bolts 309.

Finally, as shown in FIG. 3, the scrap processing apparatus 400 constituting the present invention is cut scrap is conveyed by a conveyor (401) to a scrap box (402). Are collected and processed.

When the cut scrap falls to the conveyor 401, the conveyor driving motor is operated to send the scrap to the scrap box 402 to be gathered together. When a predetermined amount of scrap is collected, the scrap box 402 is taken out and processed.

Hereinafter will be described in detail with reference to the drawings the operation of the present invention configured as described above.

Figure 7a is a working state diagram of the A-Mode according to an embodiment of the present invention, Figure 7b is a cutting state diagram of the strip by the operation of Figure 7a, Figure 8a is a working state diagram of the B-mode according to an embodiment of the present invention. 8B is a state diagram of cutting of the strip by the operation of FIG. 8A.

First, in the operation of A-Mode shown in FIG. 7A, the SCC (Sequential Control Counter) transmits the information of the current base material to the programmable logic controller (PLC) 113 and receives the information of the PLC 113. According to the command, the gap between the upper and lower knives 305 and 306 is adjusted according to the thickness degree.

The upper and lower knives 305 and 306 are fitted to the knife shaft 307 and fastened by fixing the knife fixing bolt 309. At this time, the clearance between the knife and the housing is configured to be wider than the width deviation standard of the material to prevent the interference between the base material and the cutting device.

The lower knife 306 is fixed to the fixed block 308 and the upper knife 305 is operated to adjust the gap (Gap) and wait.

Upon receiving the SCC information, the PLC 113 instructs the cutting device to wait for the cutting device at the home position, and automatically stops when the welding unit arrives at the home position of the cutting device.

To describe the A-Mode cutting operation in more detail, after the shift hydraulic cylinder 109 is operated and selected as the A-Mode working program, the cutting device stops at the A-Mode working home position 207 position.

When the welding part receives the stop signal at the home position, the apron 105 is stopped by being transported by the width of the preceding base material S1 by the apron drive motor 103 installed on the left and right sides of the apron 105.

At this time, the momentum is automatically controlled by the detection value in the PLC (PLC; 113), but when the center of the leading and trailing base material does not coincide with the width sensing photosensor 307 is stopped.

When the operation of the apron 105 is completed, the front and rear feed motor 204 is driven to decelerate at a certain speed ratio in the reducer 205 and then taper along the rack 206 through the pinion 206. At this time, the knife housing 208 moves forward and backward along the knife housing guide rail (203).

FIG. 7B illustrates a work result in which the width deviation portion of the trailing base material S2 is cut in accordance with the width of the preceding base material S1 as a result of the A-Mode work. The cut scrap is processed into a scrap box through a scrap cone air (D) installed at the bottom.

8A and 8B are diagrams illustrating the operation of the B-Mode work program. The operation mode is applied when the width of the preceding base material S1 is greater than the width of the trailing base material S2. However, the home position is located on the opposite side to the case of the A-Mode, and the operation start position of the cutting unit 300 is located opposite to the A-Mode.

As described in detail above, when using the width deviation portion cutting device of the cold-rolled steel sheet welded portion of the present invention, the plate overlap or line generated in the process of cutting the width deviation portion of the preceding and the following base material in the prior art, It is effective in preventing productivity problems caused by the occurrence of defective parts due to non-uniform tension generated between the following base materials, thereby improving productivity and reducing costs.

Claims (2)

In the device for cutting the width deviation portion of the leading base material and the trailing base material of the cold rolled steel welds, A pair of apron rails 102 are installed vertically on the main base 101 based on the traveling direction of the base material, and are connected to the apron drive motor 103 to be transferred to the left and right of the base material along the apron rails 102. A pair of aprons 105 provided with a shift guide rail 108 are installed between the shift stoppers 107 through which the two-way screws 104 are inserted and protrudingly attached to the upper surfaces of both sides, and the aprons 105 are provided. One end portion of the upper portion is connected to the apron 105 through the shift fixed shaft 112 and the other end is connected to the shift hydraulic cylinder 109 attached to the lower portion of the apron 105 along the shift guide rail 108. Left and right conveying and shifting unit 100 is installed with a pair of circumferential shift board 115, The pinion 206 meshing with the rack 202 attached to the outer side of the shift board 115 is connected to the front and rear transfer motor 204 so that the knife housing guide rail 203 is attached to the inner side of the shift board 115. And a front and rear conveying part 200 having a pair of knife housings 208 advanced back and forth in parallel with the traveling direction of the base material along The cut portion formed to face the side of the knife housing 208 cylindrical upper knife 305 and the lower knife 306 is installed in parallel with each other up and down to cut the width deviation portion by the rotation of the cutting drive motor 301 ( Width deviation unit cutting device of the cold-rolled steel sheet, characterized in that comprises a 300). According to claim 1, wherein the lower portion of the apron 105, the scrap conveyor 401 is installed in parallel to the direction of progress of the base material, and the lower portion is composed of a scrap processing unit 400 provided with a scrap processing box 402 Width deviation unit cutting device of the cold-rolled steel sheet, characterized in that.

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