CN108580621A - Corrugated plate mould pressing arc striking machine - Google Patents

Abstract

The invention discloses a corrugated plate molding arc starting machine, which comprises an upper pressing die (1) and two lower pressing dies (2). The corrugated plate molded arc starting machine uses the principle of three-point arc forming, with simple and clear structure, step-by-step feeding, segmental continuous arc starting, convenient and reliable adjustment, accurate and easy-to-control operation. The arcs of corrugated plates with different curvatures can be bent by adjusting the spacing of the lower dies and the reduction amount of the upper dies, and the connection of bent arcs with different curvatures can be easily realized. The feeding pusher moves the corrugated board to the bending station. When the bending reaches half the length of the corrugated board, the feeding pusher pushes the corrugated board forward and bends from the other end of the corrugated board to half the length of the corrugated board. In the process, the material blocking push seat becomes a push step, and the feeding push seat and the material blocking push seat cooperate and steadily step and position to realize gradual arc formation. For the connection of different curvature arcs, it can be considered to advance the direction from the connection, that is, when bending to the connection of the corrugated plate, start bending from the other end of the corrugated plate.

Description

A corrugated plate molding arc starting machine

technical field

The invention relates to the field of metal processing equipment, in particular to a corrugated plate molding arc starting machine for rolling mills.

Background technique

Corrugated plates (as shown in Figure 7) are mainly used to assemble round, dustpan-shaped, horseshoe-shaped, arched and pear-shaped steel bellows, and are currently widely used in roads, railways, bridges, passages, and retaining walls And culverts in various mines, roadway retaining wall support and other projects. At present, for corrugated plates with small specifications and small thickness, due to the relatively small bending force, four-roll or three-roll arc starting machines are often used to bend the arc. , when the required bending force reaches a certain level, increasing the friction force between the roller plates is not enough to make the corrugated plate advance to continuous arc bending, or exceed the strength of the arc bending machine, and it will wear a lot on the arc starting machine.

Contents of the invention

In order to solve the problem of processing and forming thicker corrugated plates. The invention provides a molded corrugated plate arc starting machine. The corrugated plate molded arc starting machine uses the three-point arc forming principle, has a simple and clear structure, step-by-step material feeding, segmental continuous arc starting, convenient and reliable adjustment, and accurate and easy-to-control operations. The arcs of corrugated plates with different curvatures can be bent by adjusting the spacing of the lower dies and the reduction amount of the upper dies, and the connection of bent arcs with different curvatures can be easily realized. The feeding pusher moves the corrugated board to the bending station. When the bending reaches half the length of the corrugated board, the feeding pusher pushes the corrugated board forward and bends from the other end of the corrugated board to half the length of the corrugated board. In the process, the material blocking push seat becomes a push step, and the feeding push seat and the material blocking push seat cooperate and steadily step and position to realize gradual arc formation. For the connection of different curvature arcs, it can be considered to advance the direction from the connection, that is, when bending to the connection of the corrugated plate, start bending from the other end of the corrugated plate.

The technical solution adopted by the present invention to solve the technical problem is: a molded arc starting machine for corrugated plates. In a space rectangular coordinate system with X, Y, and Z axes as coordinate axes, the arc starting machine for molded corrugated plates includes:

The upper die includes a first working part for pressing a flat workpiece, the first working part is only located at the lower part of the upper die, and the first working part includes arc-shaped upper dies arranged alternately along the Y-axis direction Wave crests and upper die arc troughs;

Two lower dies, each lower die contains a second working part for top-pressing a flat workpiece, the second working part is only located on the upper part of the lower die, each of the second working parts It contains arc-shaped crests of the lower die and arc-shaped troughs of the lower die alternately arranged along the Y-axis direction. Along the X-axis direction, the upper die is located between the two lower dies; when a flat workpiece passes through the upper die and the two lower dies Between the dies, the flat workpiece can be squeezed by the upper die and the two lower dies to form an arc-shaped corrugated plate-shaped workpiece;

Frame, capable of holding the upper die and the two lower dies.

The frame includes an archway and an upper beam, the upper beam is fixed on the upper part of the archway, and the upper die is connected with the upper beam through a connecting drive mechanism, which can drive the upper die to reciprocate along the Z-axis direction.

The connecting driving mechanism includes a hydraulic cylinder, a sliding beam and a molding rod connected in sequence along the Z-axis direction, the hydraulic cylinder is connected and fixed to the upper beam, the molding rod is connected and fixed to the upper die, and the sliding beam is slidably connected to the archway through a slide plate.

The cross-section of the molded rod is a T-shaped structure. The molded rod includes a vertical section of the molded rod and a horizontal section of the molded rod. The upper part of the upper die is provided with a groove for insertion. The horizontal section of the molded rod is connected and fixed with the lower end of the sliding beam. The upper end of the molded bar is connected and fixed with the horizontal section of the molded bar, and the lower end of the vertical section of the molded bar is inserted and fixed with the insertion groove of the upper die.

The frame contains an archway and a lower crossbeam, the lower crossbeam is fixed on the lower part of the archway, and the two lower dies are fixed on the lower crossbeam through a base fixing adjustment mechanism, and the base fixing adjustment mechanism can adjust the edge between the two lower dies. The distance in the X-axis direction.

The base fixing and adjusting mechanism includes a base, a baffle, a stopper and at least one adjustment pad, and the upper surface of the base is provided with an upper groove for installing the stopper, the adjustment pad and the lower die. Along the X-axis direction, the stopper The block, the adjustment block and the lower die are arranged in sequence, and along the Y-axis direction, the baffle is located at both ends of the base, and the baffle can limit the movement of the lower die, the stop block and the adjustment block along the Y-axis.

Along the Y-axis direction, the length of the lower die, the length of the stopper and the length of the adjustment block are equal to the distance between the two baffles, the lower die, the stopper and the adjustment block are fixed by bolts, and the stopper passes through The bolts are connected and fixed with the base.

Along the Y-axis direction, the positions of the arc-shaped peaks of the two lower dies correspond one-to-one, the positions of the arc-shaped valleys of the two lower dies correspond one-to-one, and the position of the arc-shaped peaks of the upper die on the upper die There is a one-to-one correspondence with the positions of the arc-shaped troughs of the lower mold of the lower die, and the positions of the arc-shaped troughs of the upper die of the upper die correspond one-to-one to the positions of the arc-shaped crests of the lower die.

The corrugated plate molding arc starting machine also includes a feeding guide rail and a feeding push seat, the feeding guide rail is arranged along the X-axis direction, the feeding push seat is arranged on the feeding guide rail, the feeding push seat can slide along the feeding guide rail, and the two lower dies are respectively The first lower die and the second lower die, the feeding push seat, the first lower die, the upper die and the second lower die are arranged in sequence along the X-axis direction, and the feeding push seat can push the flat workpiece into the upper press. between the die and the two lower dies.

The corrugated plate molded arc starting machine also includes a material-stopping guide rail and a material-stopping push seat, the material-stopping guide rail is arranged along the X-axis direction, the material-stopping push seat is arranged on the material-stopping guide rail, and the material-stopping push seat can slide along the material-stopping guide rail, The feeding push seat, the first lower die, the upper die, the second lower die and the stop material push seat are arranged in sequence along the X-axis direction, and the stop material push seat and the feed push seat are mirror images of each other.

The beneficial effects of the present invention are: the corrugated plate molded arc starting machine can be suitable for processing and manufacturing corrugated plates with a thickness of 2mm to 15mm, and the corrugated plate molded arc starting machine uses the principle of three-point arc forming, the structure is simple and clear, and the material is fed step by step. Segmented continuous arc starting, convenient and reliable adjustment, accurate and easy to control operation. The arcs of corrugated plates with different curvatures can be bent by adjusting the spacing of the lower dies and the reduction amount of the upper dies, and the connection of bent arcs with different curvatures can be easily realized. The feeding pusher moves the corrugated board to the bending station. When the bending reaches half the length of the corrugated board, the feeding pusher pushes the corrugated board forward and bends from the other end of the corrugated board to half the length of the corrugated board. In the process, the material blocking push seat becomes a push step, and the feeding push seat and the material blocking push seat cooperate and steadily step and position to realize gradual arc formation. For the connection of different curvature arcs, it can be considered to advance the direction from the connection, that is, when bending to the connection of the corrugated plate, start bending from the other end of the corrugated plate.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

Fig. 1 is the front view of the corrugated plate molding arc starting machine of the present invention.

Fig. 2 is a cross-sectional view along A-A direction in Fig. 1 .

Fig. 3 is a schematic diagram of the working positions of the upper and lower dies of the arc starting machine for corrugated plate molding in the present invention.

Fig. 4 is an axonometric view of the working positions of the upper and lower dies of the arc starting machine for corrugated plate molding in the present invention.

Fig. 5 is an axonometric view of the upper die of the arc starting machine for corrugated plate molding in the present invention.

Fig. 6 is an axonometric view of the lower die of the arc starting machine for corrugated plate molding in the present invention.

Fig. 7 is a sectional view of a conventional corrugated plate.

1. Upper die; 2. Lower die; 3. Molded rod; 4. Archway; 5. Upper beam; 6. Slider; 7. Lower beam; 8. Hydraulic cylinder; 9. Slider; 10. Feeding push seat ; 11, feeding guide rail; 12, stop material push seat; 13, stop material guide rail; 14, stud; 15, baffle plate;

111. The arc-shaped crest of the upper die; 112. The arc-shaped trough of the upper die; 113. The insertion groove;

21. The arc-shaped crest of the lower die; 22. The arc-shaped trough of the lower die; 23. The first lower die; 24. The second lower die;

100. Workpiece.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

A molded arc starting machine for corrugated plates, in a space Cartesian coordinate system with X, Y, and Z axes as coordinate axes, said arc starting machine for molded corrugated plates includes:

The upper die 1 includes a first working part for pressing a flat workpiece 100, the first working part is only located at the lower part of the upper die 1, and the first working part includes upper parts alternately arranged along the Y-axis direction. Die arc-shaped crest 111 and upper die arc-shaped trough 112;

Two lower pressing dies 2, each lower pressing die 2 all contain the second working part for pressing the flat workpiece 100, the second working part is only located at the upper part of the lower pressing die 2, each of the second working parts The two working parts both contain arc-shaped peaks 21 of the lower die and arc-shaped valleys 22 of the lower die arranged alternately along the Y-axis direction. Along the X-axis direction, the upper die 1 is located between the two lower dies 2; when a flat workpiece When 100 passes between the upper die 1 and the two lower dies 2, the upper die 1 can be pressed downwards, and the lower die 2 can be pushed up, so that the flat workpiece 100 can be pressed by the upper die 1 and the two lower dies. A lower die 2 extrudes and forms an arc-shaped corrugated plate-shaped workpiece 100;

The frame can fix the upper die 1 and the two lower dies 2, as shown in Fig. 1 to Fig. 6 .

The working state of the arc starting machine for corrugated plate molding according to the present invention can be shown in FIG. 1 . For ease of understanding, some descriptions in the present invention use absolute positional relationships, wherein the orientation word "up" indicates the upper side direction in FIG. 1 and also corresponds to the positive direction of the Z axis. "Down" indicates the lower direction in FIG. 1 , and also corresponds to the negative direction of the Z axis. "Left" indicates the left direction in FIG. 1 , and also corresponds to the negative direction of the X-axis. "Right" indicates the right direction in FIG. 1 , and also corresponds to the positive direction of the X-axis. "Front" indicates the direction inside the paper of FIG. 1 , and also corresponds to the negative direction of the Y-axis. "Back" indicates the direction outside the paper in FIG. 1 , and also corresponds to the positive direction of the Y axis. The present invention is described using the perspective of readers who read this patent, but the above-mentioned orientation words cannot be understood or interpreted as limiting the protection scope of the present invention.

In this embodiment, the frame includes archway 4, upper beam 5 and lower beam 7, upper beam 5 is fixed on the top of archway 4, lower beam 7 is fixed on the bottom of archway 4, upper beam 5 and lower beam 7 are up and down Set at intervals, as shown in Figure 2, the archway 4, the upper beam 5 and the lower beam 7 are connected to form a stable frame structure, and the upper die 1 is connected to the upper beam 5 through a connection drive mechanism, which can drive the upper die 1 Reciprocating movement along the Z-axis direction, that is, the connecting drive mechanism can drive the upper die 1 to reciprocate along the up-down direction in FIG. 1 .

The second working parts of the two lower dies 2 may be located at the same height. In the X-axis direction, the first working part of the upper die 1 is located between the second working parts of the two lower dies 2 . In the Z-axis direction, the first working part of the upper die 1 can be higher than the second working part of the lower die 2, or the first working part of the upper die 1 can be in contact with the second working part of the lower die 2. There is partial overlap, and the specific positional relationship between the first working part of the upper die 1 and the second working parts of the two lower dies 2 can be set as required.

Specifically, the connecting drive mechanism includes a hydraulic cylinder 8, a sliding beam 6 and a molded rod 3 which are sequentially connected along the Z-axis direction. The die 1 is connected and fixed, and the sliding beam 6 is slidably connected with the archway 4 through the sliding plate 9 . When the piston rod of the hydraulic cylinder 8 stretches, the hydraulic cylinder 8 can drive the sliding beam 6, the molding rod 3 and the upper die 1 to move up and down synchronously.

The molded rod 3 is installed on the sliding beam 6; the sliding beam 6 can move vertically up and down in the two archways 4 through the sliding plate 9, and is connected with the upper beam 5 through the hydraulic cylinder 8; the upper beam 5 is connected to the archway 4 through studs 14; the lower die 2 is located on the lower beam 7; the lower beam 7 is installed and fixed on the lower part of the archway 4, as shown in Figure 1 and Figure 2 .

In this embodiment, the section of the molded rod 3 is a T-shaped structure, and the molded rod 3 is an integral structure. The molded rod 3 includes a vertical section 31 of the molded rod and a horizontal section 32 of the molded rod. Groove 113, the lower end of the molded bar vertical section 32 is connected and fixed with the slide beam 6, the upper end of the molded bar vertical section 31 is connected and fixed with the molded bar horizontal section 32, and the lower end of the molded bar vertical section 31 is connected to the socket of the upper die 1. The groove 113 is matched with the plug-in fixation, as shown in Fig. 4 and Fig. 5, the plug-in groove 113 is used for the embedding and fixing of the molded rod 3, and it is beneficial for manufacturing centering and balanced force.

In this embodiment, the two lower dies 2 are fixed on the lower crossbeam 7 through a base fixing adjustment mechanism, and the base fixing adjustment mechanism can adjust the position of each lower die 2 in the X-axis direction, thereby not only adjusting The distance between the two lower dies 2 along the X-axis direction can also adjust the distance between each lower die 2 and the upper die 1 in the X-axis direction.

Specifically, the fixed adjustment mechanism of the base includes a base 18, a baffle plate 15, a block 17 and at least one adjustment pad 16, the base 18 is in a plate state structure, and the upper surface of the base 18 is provided with a block 17, an adjustment pad, etc. Block 16 and the upper groove of the lower die 2. Along the X-axis direction, the stopper 17, the adjustment block 16 and the lower die 2 are arranged in sequence, and along the Y-axis direction, the baffle 15 is located at the two ends of the base 18, and the baffle 15 can limit the lower die 2, the stopper 17 and the lower die 2. The adjustment block 16 moves along the Y-axis direction.

Along the Y-axis direction, the length of the lower die 2, the length of the stopper 17 and the length of the adjustment pad 16 are equal to the distance between the two baffles 15, and the lower die 2, the stopper 17 and the adjustment pad 16 pass through The bolts are connected and fixed, and the block 17 is connected and fixed with the base 18 by bolts, as shown in FIG. 3 . The distance between the two lower dies 2 is adjusted by increasing or decreasing the number of adjustment pads 16 , and the base 18 is installed on the lower beam 7 . In order to prevent the two lower dies 2 from turning over, a spacer can also be set between the two lower dies 2. The size of the spacer can have various specifications, and different specifications can be inserted according to the distance between the two lower dies 2. Dimensional spacers.

In this embodiment, along the Y-axis direction, the positions of the lower mold arc-shaped peaks 21 of the two lower dies 2 correspond one-to-one, and the positions of the lower die arc-shaped valleys 22 of the two lower dies 2 correspond one-to-one. The position of the arc-shaped crest 111 of the upper die of the die 1 corresponds to the position of the arc-shaped trough 22 of the lower die 2, and the position of the arc-shaped trough 112 of the upper die 1 corresponds to the position of the lower die 22 of the lower die 2. The positions of the modulus-shaped peaks 21 are in one-to-one correspondence, as shown in FIG. 2 and FIG. 4 . The crests and valleys of the upper die 1 and the lower die 2 are staggered so as to match the waveform of the corrugated plate.

In this embodiment, the corrugated plate molding arc starting machine also includes a feeding guide rail 11 and a feeding push seat 10. The feeding guide rail 11 is arranged along the X-axis direction, and the feeding push seat 10 is arranged on the feeding guide rail 11. The feeding push seat 10 can Slide along the feed rail 11. The corrugated plate molding arc starting machine also includes a material retaining guide rail 13 and a material retaining push seat 12. The material retaining guide rail 13 is arranged along the X-axis direction, and the material retaining push seat 12 is arranged on the retaining material guide rail 13. The material retaining push seat 12 can Slide along the guide rail 13.

The feeding guide rail 11 and the feeding push seat 10 are arranged on the left side of the upper die 1 and the two lower dies 2, and the stop guide rail 13 and the stop push seat 12 are arranged on the right side of the upper die 1 and the two lower dies 2. side, as shown in Figure 1. Specifically, the two lower dies 2 are respectively the first lower die 23 and the second lower die 24, along the X-axis direction, the feeding push seat 10, the first lower die 23, the upper die 1, the second lower die The die 24 and the material blocking push seat 12 are arranged in sequence along the X-axis direction, and the material blocking push seat 12 and the feeding push seat 10 are mirror images of each other. The feeding pusher 10 can push a flat workpiece 100 into between the upper die 1 and the two lower dies 2 .

The working process of the corrugated plate molded arc starter is introduced below.

By adjusting the distance between the two lower dies 2 and the reduction amount of the upper die 1, corrugated plate bending arcs of different diameters can be obtained; the upper die 1 is assembled and fixed on the molding rod 3; the feeding push seat 10 and the stop material push seat 12 can move along the left and right direction in Fig. 1. The workpiece 100 to be processed moves along the positive direction of the X axis through the push of the feeding pusher 10, thereby being pushed into the molding working position (that is, between the upper die 1 and the two lower dies 2). The material pushing seat 12 acts as a stopper and a guide for the end of the processed workpiece 100 (corrugated plate). After the workpiece 100 is in place, the upper die 1 is pressed down, and the feeding pushing seat 10 is pushed again after being lifted. With a certain distance, the said blocking push seat 12 is moved along the square of the X-axis to adjust its position, so as to support the processed arc-shaped corrugated plate on the right side of the upper die 1 . Compared with the flat corrugated plate in the prior art shown in FIG. 1 , the corrugated plate molding arc-starting machine used in rolling mills according to the present invention processes arc-shaped corrugated plates, as shown in FIG. 3 .

In the present invention, the corrugated plate molding arc starting machine, the upper die is pressed down, the lower die is fixed and the distance is adjustable, using the principle of three-point arc forming, the structure is simple and clear, step-by-step feeding, segmental continuous arc starting, convenient and reliable adjustment , The operation is accurate and easy to control. The arcs of corrugated plates with different curvatures can be bent by adjusting the spacing of the lower dies and the reduction amount of the upper dies, and the connection of bent arcs with different curvatures can be easily realized. The feeding pusher moves the corrugated board to the bending station. When the bending reaches half the length of the corrugated board, the feeding pusher pushes the corrugated board forward and bends from the other end of the corrugated board to half the length of the corrugated board. In the process, the material blocking push seat becomes a push step, and the feeding push seat and the material blocking push seat cooperate and steadily step and position to realize gradual arc formation. For the connection of different curvature arcs, it can be considered to advance the direction from the connection, that is, when bending to the connection of the corrugated plate, start bending from the other end of the corrugated plate.

The above is only a specific embodiment of the present invention, and cannot limit the scope of the invention, so the replacement of its equivalent components, or the equivalent changes and modifications made according to the patent protection scope of the present invention, should still fall within the scope of this patent. category. In addition, the technical features and technical features, technical features and technical solutions, and technical solutions and technical solutions in the present invention can be used in free combination.

Claims (10)

1. A corrugated plate molded arc starting machine is characterized in that, in a space Cartesian coordinate system with X, Y, and Z axes as coordinate axes, the corrugated plate molded arc starting machine comprises: The upper die (1) contains a first working part for pressing a flat workpiece (100), the first working part is only located at the lower part of the upper die (1), and the first working part contains Upper die arc-shaped crests (111) and upper die arc-shaped troughs (112) arranged alternately in the axial direction; Two lower dies (2), each lower die (2) contains a second working part for pressing a plate-shaped workpiece (100), the second working part is only located in the lower die (2) Each of the second working parts contains arc-shaped crests (21) and arc-shaped troughs (22) of the lower die alternately arranged along the Y-axis direction. Along the X-axis direction, the upper die (1) is located at Between the two lower dies (2); when the flat workpiece (100) passes between the upper die (1) and the two lower dies (2), the flat workpiece (100) can be pressed The die (1) and the two lower dies (2) extrude and form an arc-shaped corrugated plate-shaped workpiece (100); The frame can fix the upper die (1) and two lower dies (2). 2. The corrugated plate molded arc striking machine according to claim 1, characterized in that, the frame includes a archway (4) and an upper beam (5), and the upper beam (5) is fixed on the upper part of the archway (4), The upper die (1) is connected to the upper beam (5) through a connection drive mechanism, and the connection drive mechanism can drive the upper die (1) to reciprocate along the Z-axis direction. 3. The corrugated plate molded arc starting machine according to claim 2, characterized in that, the connecting drive mechanism includes a hydraulic cylinder (8), a slide beam (6) and a molded rod (3) sequentially connected along the Z-axis direction, The hydraulic cylinder (8) is connected and fixed with the upper beam (5), the molding rod (3) is connected and fixed with the upper die (1), and the sliding beam (6) is slidably connected with the archway (4) by a slide plate (9). 4. The molded arc starting machine for corrugated plates according to claim 3, characterized in that the section of the molded rod (3) is a T-shaped structure, and the molded rod (3) contains a vertical section (31) of the molded rod and a horizontal section of the molded rod (32), the top of the upper die (1) is provided with an insertion groove (113), and the lower end of the molded bar transverse section (32) is connected and fixed with the slide beam (6), and the upper end of the molded bar vertical section (31) is connected to the The molded bar transverse section (32) is connected and fixed, and the lower end of the molded bar vertical section (31) is plugged and fixed with the insertion groove (113) of the upper die (1). 5. The corrugated plate molded arc starting machine according to claim 1, characterized in that, the frame includes a archway (4) and a lower beam (7), and the lower beam (7) is fixed on the lower part of the archway (4), The two lower dies (2) are fixed on the lower beam (7) through a base fixing adjustment mechanism, and the base fixing adjustment mechanism can adjust the distance between the two lower dies (2) along the X-axis direction. 6. The corrugated plate molded arc starting machine according to claim 5, characterized in that, the base fixing and adjusting mechanism includes a base (18), a baffle (15), a stopper (17) and at least one adjustment block ( 16), the upper surface of the base (18) is provided with an upper groove for installing the stopper (17), the adjustment pad (16) and the lower die (2), along the X-axis direction, the stopper (17), the adjustment The spacer (16) and the lower die (2) are arranged in sequence, along the Y-axis direction, the baffle (15) is located at the two ends of the base (18), and the baffle (15) can limit the lower die (2), the block (17) and the adjustment block (16) move along the Y-axis direction. 7. The arc starting machine for corrugated plate molding according to claim 6, characterized in that, along the Y-axis direction, the length of the lower die (2), the length of the stopper (17) and the length of the adjustment pad (16) Equal to the distance between the two baffles (15), the lower die (2), the block (17) and the adjustment pad (16) are fixed by bolts, and the block (17) is connected to the base (18) by bolts. The connection is fixed. 8. The arc starting machine for corrugated plate molding according to claim 1, characterized in that, along the Y-axis direction, the positions of the lower die arc peaks (21) of the two lower dies (2) correspond one-to-one, and the two The positions of the lower die arc troughs (22) of the lower die (2) correspond one-to-one, and the positions of the upper die arc peaks (111) of the upper die (1) are in the same position as the lower die arcs of the lower die (2). The positions of the troughs (22) are in one-to-one correspondence, and the positions of the upper die arc-shaped wave troughs (112) of the upper die (1) are in one-to-one correspondence with the positions of the lower die arc-shaped peaks (21) of the lower die (2). 9. The corrugated plate molded arc starting machine according to claim 1, characterized in that, the corrugated plate molded arc starting machine also includes a feeding guide rail (11) and a feeding push seat (10), and the feeding guide rail (11) is along the X The axial direction is set, the feeding push seat (10) is arranged on the feeding guide rail (11), the feeding push seat (10) can slide along the feeding guide rail (11), and the two lower dies (2) are respectively the first lower die ( 23) and the second lower die (24), the feeding push seat (10), the first lower die (23), the upper die (1) and the second lower die (24) are arranged in sequence along the X-axis direction, The feeding push seat (10) can push the flat workpiece (100) into the space between the upper die (1) and the two lower dies (2). 10. The corrugated plate molded arc starting machine according to claim 9, characterized in that, the corrugated plate molded arc starting machine also includes a material stop guide rail (13) and a material stop push seat (12), and the material stop guide rail (13 ) is arranged along the X-axis direction, and the stop material push seat (12) is arranged on the stop material guide rail (13), and the stop material push seat (12) can slide along the stop material guide rail (13), and the feed push seat (10), the first The lower die (23), the upper die (1), the second lower die (24) and the push seat (12) are arranged in sequence along the X-axis direction, the push seat (12) and the feed push seat (10 ) are mirror images of each other.