KR100851882B1 - Corrugated steel sheet punching equipment - Google Patents

Abstract

A punching apparatus for a corrugated steel sheet is provided to reduce the term of works by eliminating working process for enlarging the size of punched coupling grooves in case of the inconsistency of the center of the coupling grooves. A punching apparatus for a corrugated steel sheet comprises a punching portion(200) installed in the center of a frame(100) while being disposed between a lead-in control portion(300a) and a lead-out control portion(300b), a lead-in portion(400a) installed at the front of the lead-in control portion, and a lead-out portion(400b) installed at the rear of the lead-in control portion. The punching portion is coupled to a cylinder fixing plate(210), which is horizontally fixed at a top end of the frame while piston rod being exposed downward. The frame is coupled with to guide plates(230,230'), having a punch slider(240) fitted therebetween, respectively.

Description

Corrugated Steel Sheet Punching Equipment

The present invention relates to a steel sheet punching device, in particular, by forming a groove in the steel plate bent to have a uniform radius on the surface of the bone steel plate bent to have a constant radius, so that the uniformly spaced coupling grooves In order to obtain a high quality bent bone plate, and additional work that occurs in the construction process, that is, because the center of the coupling groove is not coincident with the work process to expand the perforated coupling groove by gas cutting work, etc. It is to shorten the air.

In general, a steel plate having a predetermined thickness and width is bent to form a steel sheet, and then bent again to be connected by bolts to have a continuous shape in the axial direction, thereby being used for tunnels, underground passages, water, and drainage. ought.

When the size of the structure is small, the corrugated steel plate uses one bent steel plate, and when the size of the structure is large, it is controlled before the bending process in the process of manufacturing multiple corrugated steel plates by adjusting the bending rate in the bending process. After the coupling grooves are formed through the punching process according to the predetermined intervals, the plate-shaped steel sheet in which the coupling grooves are formed is bent.

When constructing a structure by using a bent corrugated steel sheet having a coupling groove manufactured through such a process, first, excavate both sides of the ground to a certain depth to lay the foundation ground, and reinforce the formwork and reinforcement on the foundation ground, and then anchor and After the channel is installed, concrete is poured and cured, and the formwork is dismantled.

After the formwork is disassembled, the lower part of the corrugated steel sheet is perpendicular to the channel, and then fixed with bolts and nuts, and the bolting work is performed by repeatedly joining the other corrugated steel plates in the same way between the corrugated steel plates joined to the lower channel. You get a structure.

However, there was a problem in that the gap between the coupling grooves was changed due to the difference in bending rate and the degree of bending of the steel sheet in the process of bending the steel sheet pre-formed coupling grooves, and the bending starts as the bending bends again. It is impossible to obtain a bent corrugated sheet with precise spacing due to the error that occurs at the end of the site and the end of the bending, that is, the bent portion is deformed to spread sideways. As a result, there was another problem that the stability of the structure is lowered eventually.

In addition, as the gap between the coupling grooves formed in the corrugated steel sheet is inconsistent, a work for matching them is required, that is, a separate process of extending the length or width of the coupling grooves using an oxygen welding machine or a cutter is required. Another problem is that the life of the structure is shortened because corrosion occurs in the joining grooves connected by bolts and nuts after the construction of the structure as the galvanized part is oxidized or peeled off by the oxygen cutter to prevent corrosion. There was this.

The present invention is to make a good quality bent bone steel plate by forming a groove in the steel plate to be punched with a coupling groove having a uniform gap on the surface of the bone steel plate bent to have a constant radius, and also to construct this It is an object of the present invention to provide a corrugated steel sheet punching device that can shorten the air according to the additional work that occurs in, that is, the center of the coupling grooves do not coincide with the work process for widening the perforated coupling grooves by gas cutting. .

형태를 갖는 가압핀(261)에 스프링(262)이 끼워진 상태로 삽입되어 고정헤드(263)로 결합되어짐을 특징으로 한다.According to the present invention, the punching unit 200 is installed at the center of the frame 100, and the punching unit 200 is installed between the inlet control unit 300a and the takeout control unit 300b, and the inlet control unit 300a is provided. In the bone plate punching device configured to be installed in the front portion 400a is installed in the rear portion of the pull-out control unit 300b, the punching unit 200 is the upper end between the frame 100 The lower end of the cylinder 220 is coupled to the cylinder fixing plate 210 coupled horizontally to the side so that the piston rod 221 is exposed downward, and guide plates 230 and 230 'are coupled to the frame 100, respectively. Both ends of the punch slider 240 are coupled between the guide plates 230 and 230 'such that the punch 241 is exposed downward, and the upper end of the punch slider 240 is the piston rod 221. Coupled to the frame 100 positioned at the lower side of each of the guide plates 230 and 230 ' The punch die 250 having a punch hole 251 opposite to the punch 241 is coupled to each other, and the elastic pressing unit 260 is installed around the punch 241 coupled to the punch slider 240. The elastic pressing unit 260 moves from the lower side of the slide hole 242 formed in the punch slider 240 to the upper side.

The spring 262 is inserted into the pressing pin 261 having a shape and coupled to the fixing head 263.

The present invention has the effect of obtaining a high quality bent bone plate having a coupling groove by making the coupling grooves having a uniform gap on the surface of the bone steel sheet bent to have a constant radius as the bone is formed in the steel sheet. .

In addition, the additional work that occurs during the construction process, that is, the center of the coupling groove does not match, so the work process for expanding the perforated coupling groove by gas cutting operation, etc. is not necessary, it is possible to further obtain the effect of shortening the air. .

An embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view of a bone steel sheet punching apparatus according to the present invention, Figure 2 is an exploded perspective view of a bone steel sheet punching device according to the present invention, Figure 3 is a punch slider of the bone steel sheet punching device according to the present invention in an elevated state Figure 4 is a perspective view, Figure 4 is a perspective view showing the punch slider of the bone steel sheet punching apparatus according to the present invention is lowered, Figure 5 shows the inlet, punching and drawing portion of the bone steel sheet punching device according to the present invention 6 is a front view showing an inlet portion, an inlet control unit, a drawout control unit and an outlet unit of the bone steel sheet punching apparatus according to the present invention, and FIG. 7 is a plan view of the bone plate punching apparatus according to the present invention.

As shown in FIGS. 1 and 7, the apparatus for punching a steel sheet according to the present invention includes a frame 100, a punching unit 200, an inlet control unit 300a, an outlet control unit 300b, an inlet unit 400a, and an outlet unit. The punching unit 200 is installed in the center of the frame 100, and the punching unit 200 is installed between the inlet control unit 300a and the takeout control unit 300b. The inlet part 400a is installed in front of the inlet control unit 300a, and the outlet unit 400b is provided behind the inlet control unit 300b.

The punching part 200 has a function that the coupling groove is punctured in the process of repeating the stop of the bent bone plate 900 is drawn through the inlet 400a to move at a predetermined interval to stop the frame 100 The cylinder holding plate 210 is horizontally coupled to the upper side between the lower end of the cylinder 220 is configured to be coupled to the cylinder rod plate 221 exposed to the lower portion of the cylinder holding plate 210.

Guide plates 230 and 230 ′ are respectively coupled to the frame 100, and both ends of the punch slider 240 coupled to expose the punch 241 downward between the guide plates 230 and 230 ′. The frame is fitted to be reciprocally coupled up and down, the upper end of the punch slider 240 is coupled to the lower end of the piston rod 221, the frame located to the lower side of each guide plate 230, 230 ' The punch die 250 having a punch hole 251 opposite to the punch 241 is formed at the 100.

A plurality of elastic pressing units 260 are installed around the punch 241 coupled to the punch slider 240 to facilitate the punching process.

형태를 갖는 가압핀(261)에 스프링(262)이 끼워진 상태로 삽입되어 고정너트(263)로 결합되어 펀치(241)가 펀치홀(251)로 삽입되어지기 이전에 펀치다이(250)의 상부로 위치된 벤딩된 골강판(900)을 누르게 됨으로써 펀칭작업이 용이하게 이루어지고, 펀칭작업이 이루어진 후 펀치(241)가 골강판(900)에 형성된 결합홈(910)으로부터 용이하게 분리되어질 수 있게 된다.The elastic subscription portion 260 is from the bottom of the slide hole 242 formed in the punch slider 240 to the top

The upper portion of the punch die 250 before the punch 241 is inserted into the punch hole 251 is inserted into the pressing pin 261 is inserted into the spring 262 is inserted into the fixing nut 263. By pressing the bent corrugated steel plate 900 is located to facilitate the punching operation, after the punching operation is made so that the punch 241 can be easily separated from the coupling groove 910 formed in the bone steel plate 900 do.

The inlet control unit 300a has a function of controlling the inlet length of the bone steel plate 900 supplied through the inlet unit 400a and simultaneously stopping and moving the first bearing B1. Each of the first slide S1 (S1 ') and the second slide S2 (S2') are coupled to the first guide rails 310a and 310a 'which are inclined and parallel to the inner surface of the frame 100. Both ends of the first pressure roller shaft 320a are fitted to the first bearing B1 coupled to the first slide S1 and S1 'and coupled to the second slide S2 and S2'. Both ends of the first seated roller shaft 330a are fitted to the first bearing B1.

A first positioning pressing groove 321a is formed in the first pressing roller shaft 320a and a first positioning mounting groove 331a is formed in the first mounting roller shaft 330a.

The first positioning pressing groove 321a is formed to be positioned between the first positioning seating grooves 331a, and a first rod 341a is placed on the first slides S1 and S1 ', respectively. The first pressurizing cylinder 340a has a coupling, and the encoder 530 is configured to couple to the side end of the first mounting roller shaft 330a.

A decoder 540 and a control unit 500 are connected to the encoder 530, and the first pressure cylinder 340a is operated by an oil pump 510 and an oil pump (operated by a signal from the control unit 500). It is configured to operate according to the oil supply amount controlled by the control valve 520 coupled to the discharge side of the 510.

The drawing controller 300b has a function of controlling the movement of the bone steel plate 900 that has left the drawing controller 300a, and each of the third slides S3 and S3 'into which the second bearing B2 is fitted. Four slides (S4, S4 ') is configured to be coupled to the second guide rails (310b, 310b') formed on the inner surface of the frame (100).

Both ends of the second pressing roller shaft 320b are fitted to the second bearing B2 coupled to the third slide S3 and S3 ', and the second coupled to the fourth slide S4 and S4'. Both ends of the second mounting roller shaft 330b are fitted to the bearing B2.

A second positioning pressing groove 321b is formed in the second pressing roller shaft 320b, and a second positioning mounting groove 331b is formed in the second mounting roller shaft 330b. The positioning pressing groove 321b is formed to be located between the second positioning seating grooves 331b.

A second pressurized cylinder 340b having a second rod 341b is coupled to an upper portion of the third slide S3 and S3 ', and the second pressurized cylinder 340b is connected to a signal of the controller 500. It is configured to be operated by the amount of oil controlled by the oil pump 510 is operated by the control valve 520 coupled to the discharge side of the oil pump 510.

The inlet 400a has a function of allowing the bent bone plate 900 to be introduced into the punching unit 200 by an accurate amount via the inlet control unit 300a (the first slide groove 410a) ( The fifth slide (S5) (S5 ') is coupled to the third rod (421a) of each of the first upper cylinders (420a) fixed to the upper portion of the (410a') and the first slide groove (410a) (410a '). The sixth slide (S6) (S6 ') is configured to be coupled to the fourth rod (431a) of the first lower cylinder (430a) fixed to the lower portion of the).

Third bearings B3 are fitted to the fifth slide S5, S5 ′, and the sixth slide S6, S6 ′, respectively, and the fifth slides S5, S5 ′ are coupled to each other. Both ends of the first upper pressurizing roller 440a having the plurality of first positioning grooves 441a are fitted to the third bearing B3 and are coupled to the respective sixth slides S6 and S6 '. It is comprised so that the both ends of the 1st shaft 450a may be fitted to the 3 bearing B3.

A plurality of first pressing rollers 451a are coupled to the first shaft 450a, and the first pressing rollers 451a are configured to have a ring shape in which the outer circumferential edge is curved. The first fixing ring 452a formed to protrude is integrally formed to be coupled to an arbitrary position of the first shaft 450a by the bolt B, and the hydraulic motor 550 to the first upper pressure roller 440a. ) Is configured to be combined.

The hydraulic motor 550 is operated by the oil pump 510 operated by the signal of the control unit 500 and the amount of oil controlled by the control valve 520 coupled to the discharge side of the oil pump 510. It is configured to

The lead portion 400b has a fifth rod coupled to the second upper cylinder 420b to which the second upper cylinder 420b is fixed to an upper portion of the inclined second slide grooves 410b and 410b '. Each of the seventh slides S7 and S7 'is coupled to 421b.

Second lower cylinders 430b are respectively fixed to the lower portions of the second slide grooves 410b and 410b ', and each of the eighth slides 431b is coupled to the second lower cylinder 430b. It is comprised so that S8) (S8 ') may be combined.

Fourth bearing B4 is fitted to the seventh slide S7 (S7 ') and the eighth slide S8 and S8', respectively, and is coupled to each of the seventh slides S7 and S7 '. It is comprised so that it may be fitted in the both ends of the 2nd upper part pressure roller 440b which has the some 2nd positioning groove 441b in the 4th bearing B4.

Both ends of the second shaft 450b are fitted to the fourth bearing B4 coupled to the eighth slide S8 and S8 ', respectively, and a plurality of second pressing rollers 451b are fitted to the second shaft 450b. ) Is configured to be combined.

The second pressing roller 451b is configured to have a ring shape having an outer circumferential edge, and integrally forms a second fixing ring 452b formed to protrude to both sides in the axial direction at the inner circumferential edge thereof as the bolt B. It is comprised so that it may couple to the arbitrary position of the 2nd axis | shaft 450b.

The hydraulic motor 550 ′ is coupled to the second upper pressure roller 440 b, and the hydraulic motor 550 ′ is operated by an oil pump 510 and an oil pump 510 operated by a signal from the controller 500. It is configured to be operated by the amount of oil controlled by the control valve 520 coupled to the discharge side of the). In the figure, reference numeral T denotes an oil tank.

The process of punching the coupling groove 910 in the bone steel plate 900 by the punching device as described above is as follows.

First, the oil generated by the driving of the oil pump 510 is supplied to the first upper cylinder 420a of the inlet 400a installed in the frame 100 through the control valve 520 and installed at the bottom thereof. As the first lower cylinder 430a is supplied, the third rod 421a coupled to the first upper cylinder 420a is moved upward and the fourth rod 431a coupled to the first lower cylinder 430a. The first upper pressure roller 440a and the first shaft 540a are opened as they move downward.

Next, the control valve 520 is inserted after the end of the bent corrugated steel sheet 900 that is placed on the corrugated steel sheet supplying portion 800a is inserted between the first upper pressure roller 440a and the first shaft 450a. As the supply direction of the oil supplied to the first upper cylinder 420a and the first lower cylinder 340a is reversed, the first upper pressure roller 440a and the first shaft 450a which have been opened are peeled. The first positioning groove 441a formed in the first upper pressure roller 440a and the first pressure roller 451a coupled to the first shaft 450a are bent on the upper and lower portions of the corrugated steel sheet 900. They are in close contact with each other.

In this state, the oil is supplied to the hydraulic motor 550 through the control valve 520 and the first upper pressure roller 440a is rotated, so that the punching part 900 in which the bone plate 900 is installed in the frame 100 ( The end of the bone steel plate 900 that is conveyed toward the 200 and is passed between the first pressing roller shaft 320a and the first seating roller shaft 330a of the inlet control unit 300a and at the same time the amount of conveyance It is applied to the control unit 500. That is, the amount of rotation is converted into an electrical signal (pulse) by the encoder 530 coupled to the side end of the first seating roller shaft 330a and applied to the controller 500 via the decoder 540, and the signal is The applied control unit 500 continuously opens the control valve 520 coupled to the discharge side of the oil pump 510 when the pulse signal value is smaller than the set value compared with a preset transfer distance or an interval between the coupling grooves. By being maintained, oil is continuously supplied to the hydraulic motor 550.

Next, the hydraulic motor 550 is operated to continuously transport the bone plate 900 to be formed with the coupling groove, and the control unit 500 to close the control valve 520 when the pulse signal value is equal to the set value. As the driving of the inlet portion 400a is stopped, the bone plate 900 at which the coupling groove is to be formed is positioned directly below the punching portion 200.

In this process, the first pressurizing cylinder 340a having the first rod 341a which is phosphorused in and out toward the lower portion is coupled to the upper portion of the first slide S1 and S1 ', thereby drawing the inlet 400a. The bone plate 900 being introduced through is initially prevented from passing through the first pressing roller shaft 320a and the first seating roller shaft 330a of the inlet control unit 300a, but at this time, the first pressing cylinder 340a The first rod 341a moves upward to move the first slider S1 so that the first pressing roller shaft 320a is spaced apart from the first seating roller shaft 330a and a gap is generated therebetween. Immediately after the 900 is inserted, the first seating roller shaft 330a, which is in contact with the bone steel plate 900 as the bone plate 900 is pressed by the first pressing roller shaft 320a, is lost. It becomes possible to prevent turning. That is, the first seating roller shaft 330a is not rotated or only the first seating roller shaft 330a is rotated while the bone plate 900 is being transferred, so that a transfer pulse value is transmitted to the controller 500 so that an error occurs. Can be prevented.

At this time, the amount of oil supplied to the hydraulic motor 550 is controlled by the oil pump 510 operated according to the signal of the control unit 500 and the control valve selectively opened or closed by the control unit 500 Controlled by 520.

Next, the piston rod 221 as the control valve 520 is controlled by the control unit 500 and oil is supplied to the cylinder 220 of the punching unit 200 while the operation of the inlet unit 400a is stopped. ) Is moved to the bottom, and the punch slider 240 coupled to the bottom is moved while being guided to the guide plates 230, 230 '.

Next, the spring 262 is compressed while pressing the upper portion of the bone steel plate 900 in which the pressing pin 261 of the elastic pressing unit 260 coupled to the punch slider 240 is mounted on the punch die 250. In this state, the punch 241 coupled to the lower portion of the punch slider 240 is inserted into the punch groove 251 formed in the punch die 250 due to the continuous movement of the piston rod 221. At the same time the coupling groove 910 is drilled in the bone steel plate (900).

Next, the piston rod 221 is moved in the reverse direction and at the same time the punch slider 240 is moved to the upper side at this time, the bone steel plate 900 is pressed by the elastic force of the spring 262 of the elastic pressing unit 260 The punch 241 is easily separated from the coupling groove 910 in a losing state.

Next, as the coupling groove 910 is formed and the punch slider 240 is moved upward, the operation of the inlet 400a is followed by a predetermined interval in the bone steel plate 900 through the repetition of the process as described above. A plurality of coupling grooves 910 are formed.

Next, after the coupling groove 910 is formed in the process of passing through the punching part 200 by the bone steel plate 900 supplied through the inlet 400a, the bone steel plate 900 having the coupling groove 910 is formed. Immediately after the end of the corrugated steel sheet 900 is pressed by the lead portion 400b and passes through the lead portion 400a, it is sequentially transferred by the driving force of the hydraulic motor 550 'of the lead portion 400b. Coupling groove 910 is continuously formed at the edge or any position of the bent steel plate 900 by repeating the movement, stop and punching operation by the take-out control unit (300b).

Next, when the bone plate 900 with the coupling groove 910 is passed through the withdrawal portion (400b) and is placed on the bone plate discharge portion (800b) installed on the other side of the frame 100 at the same time to load it elsewhere do.

1 is a perspective view of a bone steel sheet punching device according to the present invention.

Figure 2 is an exploded perspective view of the bone steel sheet punching device according to the present invention.

Figure 3 is a perspective view showing a state in which the punch slider of the bone plate punching apparatus according to the present invention is raised.

Figure 4 is a perspective view showing a punch slider lowered state of the bone steel sheet punching device according to the present invention.

Figure 5 is a front view showing the inlet, punching and withdrawing portion of the bone steel sheet punching apparatus according to the present invention.

Figure 6 is a front view showing the inlet, the inlet control unit, the drawout control unit and the extraction unit of the bone steel sheet punching apparatus according to the present invention.

7 is a plan view of a bone steel sheet punching device according to the present invention.

<Brief description of symbols for the main parts of the drawings>

100: frame 200: punching part

210: cylinder fixing plate 220: cylinder

221: piston rod 230, 230 ': guide version

240: Punch slider 241: Punch

242: Slide hole 250: Punch die

251: punch hole 260: elastic pressing unit

261: Push pin 262: Spring

263: fixed head 300a: retraction control unit

300b: drawing out part 400a: drawing part

400b: drawer

Claims (5)

The punching unit 200 is installed in the center of the frame 100, and the punching unit 200 is installed between the inlet control unit 300a and the takeout control unit 300b, and the lead in front of the inlet control unit 300a. In the bone plate punching device is provided with a portion 400a and configured to be installed with the withdrawal unit 400b in the rear of the withdrawal control unit 300b, The punching part 200 is coupled to the lower end of the cylinder 220 so that the piston rod 221 is exposed to the lower side of the cylinder holding plate 210 coupled horizontally to the upper side between the frame 100, the frame 100 Guide plates 230 and 230 'are coupled to each other, and both ends of the punch slider 240 coupled to expose the punch 241 downward between the guide plates 230 and 230', The upper end of the punch slider 240 is coupled to the piston rod 221, the punch hole facing the punch 241 in the frame 100 located to the lower side of each guide plate 230, 230 ' A punch die 250 having a 251 formed thereon is coupled thereto, and an elastic pressing unit 260 is installed around the punch 241 coupled to the punch slider 240, but the elastic pressing unit 260 is From bottom to top of the slide hole 242 formed in the punch slider 240

Corrugated steel sheet punching device, characterized in that the spring 262 is inserted into the pressing pin (261) having a form is coupled to the fixing nut (263). The method of claim 1, The inlet control unit 300a includes first slides S1, S1 ', and second slides S2, S2', respectively, on the first guide rails 310a, 310a 'formed on the inner surface of the frame 100. FIG. Is coupled, and a first bearing B1 is coupled to the first slide S1 (S1 ') and the second slide S2 (S2'), and is connected to the first slide S1 (S1 '). Both ends of the first pressure roller shaft 320a are fitted to the first bearing B1 coupled to each other, and the first seating roller shaft 330a is coupled to the first bearing B1 coupled to the second slide S2 (S2 '). The both ends of the ()) are fitted, the first positioning roller groove (321a) is formed in the first pressing roller shaft (320a) and the first positioning roller groove (331a) in the first mounting roller shaft (330a) The first positioning pressing groove 321a is formed to be positioned between the first positioning mounting groove 331a, and each of the first rods is disposed on the first slide S1 (S1 '). The first pressurizing cylinder 340a having the 341a is coupled and The encoder 530 is coupled to the side end of the first seating roller shaft 330a, but the decoder 540 and the controller 500 are connected to the encoder 530, and the first pressure cylinder 340a is a controller. Corrugated steel sheet punching device, characterized in that configured to be supplied with oil by the oil pump 510 is operated to the signal of the 500 and the control valve 520 coupled to the discharge side of the oil pump (510). The method of claim 1, The drawing controller 300b has a third slide S3 (S3 ') and a fourth slide S4 (S4') formed on the second guide rails 310b and 310b 'formed on the inner surface of the frame 100. The second bearing B2 is coupled to the third slide S3 (S3 ') and the fourth slide S4 (S4'), respectively, and the third slide S3 (S3 ') is coupled to the third slide S3 (S3'). Both ends of the second pressurized roller shaft 320b are fitted to the combined second bearing B2 and the second seated roller shaft 330b is attached to the second bearing B2 coupled to the fourth slide S4 and S4 '. ) Both ends are fitted, a second positioning pressing groove 321b is formed in the second pressing roller shaft 320b, and a second positioning mounting groove 331b is formed in the second mounting roller shaft 330b. Wherein the second positioning pressing groove 321b is formed so as to be located between the second positioning seating groove 331b, each of the second on top of the third slide (S3) (S3 ') A second pressure cylinder 340b having a rod 341b is coupled The second pressure cylinder 340b is configured to supply oil by an oil pump 510 operated by a signal from the controller 500 and a control valve 520 coupled to the discharge side of the oil pump 510. Corrugated sheet punching device, characterized in that. The method of claim 1, The inlet portion 400a has a first upper cylinder 420a fixed to the upper portions of the inclined first slide grooves 410a and 410a ', respectively, and a third rod 421a coupled to the first upper cylinder 420a. The fifth slide (S5) (S5 ') is respectively coupled to the first, the first lower cylinder (430a) is fixed to the lower portion of the first slide grooves (410a, 410a') and the first lower cylinder ( Sixth slides S6 and S6 'are respectively coupled to the fourth rod 431a of 430a, respectively, to the fifth slides S5, S5', and sixth slides S6, S6 ', respectively. A first upper pressurizing roller having a third bearing B3 fitted therein and having a plurality of first positioning grooves 441a in the combined third bearing B3 of each of the fifth slides S5 and S5 '. Both ends of 440a are fitted, and both ends of the first shaft 450a are fitted to the third bearing B3 respectively coupled to the sixth slides S6 and S6 ', and the first shaft 450a is fitted to the first shaft 450a. A plurality of first pressing rollers (451a) is coupled, the first pressing rollers (451a) are other The peripheral edge portion is configured to have a curved ring shape and integrally formed with a first fixing ring 452a formed to protrude to both sides in the axial direction at the inner circumference thereof with bolts B at any position of the first shaft 450a. The steel plate punching device is configured to be coupled, characterized in that the hydraulic motor 550 is coupled to the first upper pressure roller (440a). The method of claim 1, The lead portion 400b has a second upper cylinder 420b fixed to an upper portion of the inclined second slide grooves 410b and 410b ', respectively, and has a fifth rod 421b coupled to the second upper cylinder 420b. The seventh slide (S7) (S7 ') is coupled to each other, the second lower cylinder (430b) is fixed to the lower portion of the second slide grooves (410b, 410b'), respectively, the second lower cylinder Eighth slides S8 and S8 'are coupled to sixth rods 431b coupled to 430b, respectively, and the seventh slides S7 and S7' and the eighth slide S8 and S8 'are respectively coupled to the sixth rod 431b. Fourth bearings B4 are respectively fitted into the second and second bearings having a plurality of second positioning grooves 441b in the fourth bearings B4 coupled to the seventh slides S7 and S7 ', respectively. Both ends of the second shaft 450b are fitted to the fourth bearing B4 coupled to both ends of the upper pressing roller 440b and coupled to the respective eighth slides S8 and S8 '. A plurality of second pressure rollers 451b are coupled to 450b, and the second pressure rollers The rudder 451b is configured to have a ring shape having an outer circumferential edge, and integrally forms a second fixing ring 452b formed to protrude to both sides in the axial direction on the inner circumferential edge thereof with the bolt B. 450b) is configured to be coupled to any position, the bone plate punching device, characterized in that the hydraulic motor (550 ') is coupled to the second upper pressure roller (440b).

Images