Metal plate rolling processing equipment and process

Abstract

The invention discloses a metal plate rolling processing equipment and process, and relates to the technical field of metal plate rolling, including a rolling mechanism, wherein the rolling mechanism includes a base, a support frame is fixed on the top of the base, a hydraulic cylinder is fixed on the top of the support frame, an upper electric roller is fixed on the bottom end of the hydraulic cylinder, a pressure sensor is installed inside the upper electric roller, and a lower electric roller is fixed on the top of the base; during the rolling process of the invention, the metal plate is limited, and the movement of the metal plate is controlled so that the metal plate always keeps close contact with the rolling machine after a single rolling technology, and back and forth rolling can be achieved without manual intervention, and the limiting shortens the sliding time and distance of the metal plate and the feeding time, thereby improving the rolling efficiency, and the metal plate is positioned in real time while limiting the position, thereby avoiding the influence of inclined rolling on the metal plate and avoiding the metal plate deviating from the rolling machine due to inclined rolling.

Description

Technical Field

[0001] The invention relates to the technical field of metal plate rolling, and in particular to a metal plate rolling processing equipment and process. Background Art

[0002] Rolling is a metal processing technology that passes a metal billet through the gap between a pair of rotating rollers. Due to the compression of the rollers, the cross-section of the material is reduced and the length is increased.

[0003] Metal plates need to be rolled back and forth to form metal plates of specified thickness. However, during the rolling process, the metal plates will be affected by the inertia of the rollers, and will slide a long distance away from the rolling mill after a single rolling. The metal plates are then sent back to the rolling mill for rolling again. Inertial sliding and continuous feeding will cause the metal plates to tilt. The tilted metal plates will gradually deviate from the rolling mill during the rolling process, and rolling the tilted metal plates will also affect their shape. Summary of the invention

[0004] The present invention provides a metal plate rolling processing equipment and process to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A metal plate rolling processing equipment, comprising a rolling mechanism, the rolling mechanism comprising a base, a support frame is fixed on the top of the base, a hydraulic cylinder is fixed on the top of the support frame, an upper electric roller is fixed on the bottom end of the hydraulic cylinder, a pressure sensor is installed inside the upper electric roller, a lower electric roller is fixed on the top of the base, the pressure sensor senses the force of the rolled steel on the upper electric roller, and starts the downward movement program when the force disappears; The rolling mechanism drives the upper and lower electric rollers to rotate forward and reverse to achieve reciprocating rolling of the metal plate to form a metal plate of specified thickness.

[0006] The invention is characterized in that: Furthermore, a limit positioning mechanism is installed on both sides of the rolling mechanism, and the limit positioning mechanism includes two push plate racks, and two triangular positioning plates are fixed on opposite sides of the two push plate racks; The position limiting and positioning mechanism comprises a mounting frame fixed on both sides of the base, a material discharge plate is fixed on the top of the mounting frame, a plurality of transmission grooves are opened on the top of the material discharge plate, and a transmission roller is rotatably connected inside the transmission groove; The limit positioning mechanism also includes a slide groove that runs through one side of the base, a plurality of guide rods 1 are fixed inside the slide groove, a plurality of guide rods 1 are sleeved on the outside of the guide rods 1, a spring 1 is fixed on the side away from the two sliding plates, a set of the spring is arranged on the outside of the guide rod 1, and the other end of the spring 1 is fixedly connected to the inner wall of the slide groove, and baffles are fixed on both sides of the push plate frame; The limit positioning mechanism ensures that the metal plate is always located in the center during the rolling process, and limits the metal plate during the rolling process to prevent it from being pushed a long distance by the rapidly rotating rollers during rolling. This allows the metal plate and the rollers to always maintain a close distance, and one side of the metal plate rolled back and forth is always in contact with the rollers. Back and forth rolling can be achieved by continuously switching the direction of the rollers, reducing the distance at which rolling occurs, thereby improving the rolling processing efficiency.

[0007] Furthermore, a reset material discharge mechanism is installed on the limit positioning mechanism; The reset discharge mechanism comprises two fixing frames fixed in mirror image on the side away from the two discharge plates, and two bidirectional screws and guide rods are installed on both sides of the support frame, and two ends of the bidirectional screw are rotatably connected to the fixing frame respectively, and two ends of the guide rods are fixedly connected to the fixing frame respectively, and a pulley is fixed to the outside of one end of the bidirectional screw, and the external transmission of the two pulleys is connected with a belt, and the external thread sleeve of the bidirectional screw is provided with two L-shaped movable plates, and the L-shaped movable plate sleeve is arranged on the outside of the guide rods below the same side as the bidirectional screw, and the external rotation of the bidirectional screw and the guide rods on the same side is connected with the same vertical plate, and the vertical plate is fixedly connected to the base; The reset unloading mechanism also includes a triangular dial plate fixed on one side of the fixed frame, and two triangular dial plates on the same side are mirror-mounted. A slideway is provided at the bottom of the L-shaped movable plate, and a second spring is fixed on the inner wall of the slideway. A slider is sleeved inside the slideway, and the second spring is fixedly connected to one side of the slider. A connecting block is fixed at the bottom of the slider, and the bottom of the connecting block is rotatably connected to a limiting block. The connection point between the limiting block and the connecting block is located on a side close to the triangular dial plate, and a torsion spring is installed outside the connection point between the limiting block and the connecting block. The reset unloading mechanism resets the push plate rack to facilitate the loading and unloading of metal plates.

[0008] Further, a transmission mechanism, the transmission mechanism is installed on the rolling mechanism and the reset unloading mechanism, and is transmission-connected with the transmission mechanism and the reset unloading mechanism; The transmission mechanism comprises a rotating shaft rotatably connected to one side of the upper electric roller housing, one end of the rotating shaft is fixed with a gear 1, the other end of the rotating shaft is fixed with a bevel gear 1, one side of the central axis of the upper electric roller is fixed with a gear 2, and the gear 2 is meshed with the gear 1; The transmission mechanism also includes a bevel gear 2 fixed to the outside of one of the bidirectional screws, and the bevel gear 1 moves up and down to mesh with the bevel gear 2.

[0009] Furthermore, a controller is fixed on one side of the support frame, and the controller is electrically connected to the upper electric roller, the lower electric roller, the pressure sensor and the hydraulic cylinder.

[0010] A metal plate rolling process comprises the following steps: S1: Start the rolling program through the controller. The controller starts the upper electric roller to rotate forward. The upper electric roller rotates forward to drive gear 2 to rotate. The rotation of gear 2 drives gear 1 and bevel gear 1 to rotate. The rotation of bevel gear 1 drives bevel gear 2 and the bidirectional screw to rotate. The rotation of the bidirectional screw drives another bidirectional screw to rotate synchronously through the pulley and the belt, so that the two L-shaped moving plates located on the outside drive the lower structure to move toward the baffle. Because the connection point between the connecting block and the limit block is on the side away from the baffle, the limit block will be limited when it contacts the baffle. However, the L-shaped moving plate continues to move at this time. Therefore, the resistance between the baffle and the limit block will cause the limit block to rotate around the connection point and compress the torsion spring to tilt. If it continues to move, the limit block will cross over the top of the baffle and then be reset by the torsion spring. At this time, the L-shaped moving plate has moved to the wire tail. S2: Start the upper electric roller to reverse, so that the bidirectional screw is reversed, so that the L-shaped moving plate drives the lower structure to reset, and the connection point of the connecting block and the limit block after crossing is toward the baffle plate, so when the limit block moves back, the baffle plate pushes the limit block and the connecting block to contact, and the limit block pushes the baffle plate to drive the push plate frame and the sliding plate to move, and the sliding plate moves to squeeze the spring 1, so that the spring 1 is compressed, and when the L-shaped moving plate moves to the specified position, it contacts the triangular dial plate and then stops moving; S3: Place the heated metal plate on the top of the discharge plate, with the bottom in contact with the transmission roller. Then the controller continues to start the upper electric roller to rotate and continue to move the limit block. The limit block will be blocked and drive the slider to squeeze spring 2 along the slope of the triangular dial plate, and the limit block will move to one side along the slope to gradually reduce the contact area with the baffle. When there is no contact at all, the baffle is not blocked. Spring 1 will push the sliding plate to drive the push plate frame to return to its original position. One side of the push plate frame will be blocked by the metal plate placed on the top of the discharge plate when resetting, while the other side will be completely reset. The blocked push plate frame will make one side of the metal plate close to the upper electric roller and the lower electric roller through spring 1 and the transmission roller. The metal plate will be affected by the triangular positioning plate in the process of moving to fit the upper electric roller and the lower electric roller, so that the entire metal plate is located between the two triangular positioning plates, that is, the center position. S4: The controller starts the hydraulic cylinder to push the upper electric roller down a certain distance so that the rolling gap is smaller than the height of the metal plate. At the same time, when moving down, bevel gear 1 and bevel gear 2 are disengaged. At this time, the upper electric roller, the lower electric roller and the pressure sensor are started at the same time, so that the metal plate on one side passes through the upper electric roller and the lower electric roller for preliminary rolling. After passing through, one end contacts with the two triangular positioning plates on the other side to position the metal plate to avoid displacement during rolling, and pushes the push plate frame and the sliding plate to compress spring 1. When it is completely passed through, the moving push plate frame stops moving, and the push plate frame makes one side of the metal plate close to one side of the upper electric roller and the lower electric roller. Then the hydraulic cylinder is started to move the upper electric roller down a specified distance, and then the upper electric roller and the lower electric roller are started to reverse for secondary rolling. According to the above steps, rolling is performed back and forth to achieve the specified size of rolled steel, and then the push plate frame and other structures are reset according to the steps of S1 and S2, the rolled steel is removed, and the processing is completed.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention installs a limit positioning mechanism to ensure that the metal plate is always located at the center during the rolling process, and limits the metal plate during the rolling process to prevent it from being pushed out a long distance by the rapidly rotating roller during rolling, so that the metal plate and the roller are always kept close to each other, so that one side of the metal plate being rolled back and forth is always in contact with the roller, and the rolling back and forth can be achieved by continuously switching the direction of the roller, thereby reducing the distance of rolling, thereby improving the processing efficiency of rolling; 2. The present invention installs a reset discharge mechanism to reset the push plate frame, which is convenient for loading and unloading metal plates.

[0012] To sum up, the equipment has novel design and simple operation. During the rolling process, the equipment limits the metal plate and controls the movement of the metal plate so that the metal plate always keeps close to the rolling mill after a single rolling process. Back and forth rolling can be achieved without human intervention. The limitation shortens the sliding time and distance of the metal plate and the loading time, thereby improving the rolling efficiency. While limiting, the metal plate is positioned in real time to avoid the influence of inclined rolling on the metal plate and avoid the metal plate deviating from the rolling mill due to inclined rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall first-perspective structure of a metal plate rolling processing equipment proposed by the present invention.

[0014] Figure 2 This is a schematic diagram of the overall second-view structure of a metal plate rolling processing equipment proposed by the present invention.

[0015] Figure 3 This is a schematic structural diagram of a rolling mechanism of a metal plate rolling processing equipment proposed by the present invention.

[0016] Figure 4 This is a schematic structural diagram of a limit positioning mechanism for metal plate rolling processing equipment proposed by the present invention.

[0017] Figure 5 This is a partial structural schematic diagram of a resetting and unloading mechanism of a metal plate rolling processing equipment proposed by the present invention.

[0018] In the figure: 1. rolling mechanism; 11. base; 12. support frame; 13. hydraulic cylinder; 14. upper electric roller; 15. lower electric roller; 2. reset unloading mechanism; 21. bidirectional screw; 22. guide rod 2; 23. pulley; 24. fixed frame; 25. belt; 26. L-shaped moving plate; 27. slideway; 28. spring 2; 29. ​​slider; 210. connecting block; 211. limit block; 212. triangular dial plate; 213. vertical plate; 3. transmission mechanism; 31. rotating shaft; 32. gear 1; 33. bevel gear 1; 34. gear 2; 35. bevel gear 2; 4. limit positioning mechanism; 41. unloading plate; 42. guide rod 1; 43. spring 1; 44. sliding plate; 45. push plate frame; 46. baffle; 47. triangular positioning plate; 48. transmission roller; 49. slide; 410. mounting frame. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0022] Example 1: Reference Figure 1-Figure 3 : A metal plate rolling processing equipment, comprising a rolling mechanism 1, the rolling mechanism 1 comprising a base 11, a support frame 12 is fixed on the top of the base 11, a hydraulic cylinder 13 is fixed on the top of the support frame 12, an upper electric roller 14 is fixed on the bottom end of the hydraulic cylinder 13, a pressure sensor is installed inside the upper electric roller 14, a lower electric roller 15 is fixed on the top of the base 11, the pressure sensor senses the force of the rolled steel on the upper electric roller, and starts the downward movement program when the force disappears; The rolling mechanism drives the upper and lower electric rollers to rotate forward and reverse to achieve reciprocating rolling of the metal plate to form a metal plate of specified thickness.

[0023] The invention is characterized in that: The position limiting and positioning mechanism 4 is installed on both sides of the rolling mechanism 1. The position limiting and positioning mechanism 4 includes two push plate frames 45. Two triangular positioning plates 47 are fixed on opposite sides of the two push plate frames 45. The position limiting and positioning mechanism 4 includes a mounting frame 410 fixed on both sides of the base 11, a material discharge plate 41 is fixed on the top of the mounting frame 410, a plurality of transmission grooves are opened on the top of the material discharge plate 41, and a transmission roller 48 is rotatably connected inside the transmission groove; The position limiting and positioning mechanism 4 also includes a slide groove 49 extending through one side of the base 11, a plurality of guide rods 42 are fixed inside the slide groove 49, a plurality of guide rods 42 are sleeved outside a sliding plate 44, a spring 43 is fixed on the side away from the two sliding plates 44, the spring 43 is sleeved outside the guide rod 42, the other end of the spring 43 is fixedly connected to the inner wall of the slide groove 49, and baffles 46 are fixed on both sides of the push plate frame 45; The limit positioning mechanism ensures that the metal plate is always located in the center during the rolling process, and limits the metal plate during the rolling process to prevent it from being pushed a long distance by the rapidly rotating rollers during rolling. This allows the metal plate and the rollers to always maintain a close distance, and one side of the metal plate rolled back and forth is always in contact with the rollers. Back and forth rolling can be achieved by continuously switching the direction of the rollers, reducing the distance at which rolling occurs, thereby improving the rolling processing efficiency.

[0024] Reset the material discharge mechanism 2, the reset material discharge mechanism 2 is installed on the limit positioning mechanism 4; The reset discharge mechanism 2 includes two fixed frames 24 fixed in mirror image on the side away from the two discharge plates 41, and two bidirectional screws 21 and two guide rods 22 are installed on both sides of the support frame 12. The two ends of the bidirectional screw 21 are rotatably connected to the fixed frames 24 respectively, and the two ends of the guide rods 22 are fixedly connected to the fixed frames 24 respectively. A pulley 23 is fixed to the outside of one end of the bidirectional screw 21, and the two pulleys 23 are connected to the outside of the belt 25. The external thread sleeve of the bidirectional screw 21 is provided with two L-shaped movable plates 26, and the L-shaped movable plates 26 are sleeved on the outside of the guide rods 22 below the same side as the bidirectional screw 21. The bidirectional screw 21 and the guide rods 22 on the same side are externally rotatably connected with the same vertical plate 213, and the vertical plate 213 is fixedly connected to the base 11. The reset discharge mechanism 2 also includes a triangular dial plate 212 fixed on one side of the fixed frame 24, and the two triangular dial plates 212 on the same side are mirror-mounted. A slideway 27 is provided at the bottom of the L-shaped movable plate 26, and a spring 28 is fixed on the inner wall of the slideway 27. A slider 29 is sleeved inside the slideway 27, and the spring 28 is fixedly connected to one side of the slider 29. A connecting block 210 is fixed to the bottom of the slider 29, and the bottom of the connecting block 210 is rotatably connected to a limiting block 211. The connection point between the limiting block 211 and the connecting block 210 is located on a side close to the triangular dial plate 212, and a torsion spring is installed outside the connection point between the limiting block 211 and the connecting block 210. The reset unloading mechanism resets the push plate rack to facilitate the loading and unloading of metal plates.

[0025] The transmission mechanism 3 is installed on the rolling mechanism 1 and the reset unloading mechanism 2, and is in transmission connection with the transmission mechanism 3 and the reset unloading mechanism 2; The transmission mechanism 3 includes a rotating shaft 31 rotatably connected to one side of the housing of the upper electric roller 14, a gear 1 32 is fixed to one end of the rotating shaft 31, a bevel gear 1 33 is fixed to the other end of the rotating shaft 31, a gear 2 34 is fixed to one side of the central axis of the upper electric roller 14, and the gear 2 34 is meshed with the gear 1 32; The transmission mechanism 3 further includes a bevel gear 2 35 fixed to the outside of one of the bidirectional screw rods 21 , and the bevel gear 1 33 moves up and down to mesh with the bevel gear 2 35 .

[0026] A controller is fixed on one side of the support frame 12 , and the controller is electrically connected to the upper electric roller 14 , the lower electric roller 15 , the pressure sensor and the hydraulic cylinder 13 .

[0027] Example 2: Reference Figure 2-Figure 5 : This embodiment provides a metal plate rolling process based on embodiment 1, which includes the following steps: S1: The rolling program is started by the controller. The controller starts the upper electric roller 14 to rotate forward. The upper electric roller 14 rotates forward to drive the gear 2 34 to rotate. The rotation of the gear 2 34 drives the gear 1 32 and the bevel gear 1 33 to rotate. The rotation of the bevel gear 1 33 drives the bevel gear 2 35 and the bidirectional screw 21 to rotate. The rotation of the bidirectional screw 21 drives another bidirectional screw 21 to rotate synchronously through the pulley 23 and the belt 25, so that the two L-shaped moving plates 26 located on the outside drive the lower structure to move toward the direction of the baffle 46. Because the connection point between the connection block 210 and the limit block 211 is on the side away from the baffle 46, the limit block 211 will be limited when it contacts the baffle 46. However, the L-shaped movable plate 26 continues to move at this time, so the resistance between the baffle 46 and the limit block 211 will cause the limit block 211 to rotate around the connection point and compress the torsion spring to tilt. If the limit block 211 continues to move, it will cross over the top of the baffle 46 and then be reset by the torsion spring. At this time, the L-shaped movable plate 26 has moved to the wire tail. S2: Start the upper electric roller 14 to reverse, so that the bidirectional screw 21 reverses, so that the L-shaped movable plate 26 drives the lower structure to reset, and the connection point of the connecting block 210 and the limit block 211 after crossing is toward the baffle 46, so when the limit block 211 moves back, the baffle 46 pushes the limit block 211 to abut against the connecting block 210, and the limit block 211 pushes the baffle 46 to drive the push plate frame 45 and the sliding plate 44 to move, and the sliding plate 44 moves to squeeze the spring 1 43, so that the spring 1 43 is compressed, and when the L-shaped movable plate 26 moves to the specified position, it contacts the triangular dial plate 212 and then stops moving; S3: Place the heated metal plate on the top of the discharge plate 41, with the bottom in contact with the transmission roller 48, and then the controller continues to start the upper electric roller 14 to rotate, and continues to move the limit block 211. The limit block 211 will be blocked and drive the slider 29 to squeeze the spring 28 along the slope of the triangular dial plate 212, and the limit block 211 moves to one side along the slope and gradually reduces the contact area with the baffle 46. When there is no contact at all, the baffle 46 is not blocked, and the spring 1 43 will push the sliding plate 44 to drive the push plate frame 45 returns to its original position, one side of the push plate frame 45 will be blocked by the metal plate placed on the top of the unloading plate 41 when it is reset, while the other side is completely reset, and the blocked push plate frame 45 will make one side of the metal plate close to the upper electric roller 14 and the lower electric roller 15 through the spring 1 43 and the transmission roller 48, and the metal plate will be affected by the triangular positioning plate 47 in the process of moving to fit the upper electric roller 14 and the lower electric roller 15, so that the whole metal plate is located between the two triangular positioning plates 47, that is, the center position; S4: The controller starts the hydraulic cylinder 13 to push the upper electric roller 14 downward for a certain distance, so that the rolling gap is smaller than the height of the metal plate. At the same time, when moving downward, the bevel gear 1 33 and the bevel gear 2 35 are disengaged. At this time, the upper electric roller 14, the lower electric roller 15 and the pressure sensor are started at the same time, so that the metal plate on one side passes through the upper electric roller 14 and the lower electric roller 15 for preliminary rolling. After passing through, one end contacts the two triangular positioning plates 47 on the other side to position the metal plate to avoid displacement during the rolling process, and push the push plate frame 45 And the sliding plate 44 compresses the spring 43. When it is completely passed through, the moving push plate frame 45 stops moving, and the push plate frame 45 makes one side of the metal plate close to one side of the upper electric roller 14 and the lower electric roller 15, and then starts the hydraulic cylinder 13 to move the upper electric roller 14 down a specified distance, and then starts the upper electric roller 14 and the lower electric roller 15 to reverse and perform secondary rolling. According to the above steps, rolling is performed back and forth to achieve the specified size of rolled steel, and then the push plate frame 45 and other structures are reset according to the steps S1 and S2, the rolled steel is removed, and the processing is completed.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal plate rolling processing equipment, comprising a rolling mechanism (1), characterized in that Also includes: A limit positioning mechanism (4), the limit positioning mechanism (4) being installed on both sides of the rolling mechanism (1), the limit positioning mechanism (4) comprising two push plate frames (45), and two triangular positioning plates (47) being fixed on opposite sides of the two push plate frames (45); A reset material discharge mechanism (2), wherein the reset material discharge mechanism (2) is mounted on the limit positioning mechanism (4); A transmission mechanism (3) is installed on the rolling mechanism (1) and the resetting and unloading mechanism (2), and is transmission-connected to the transmission mechanism (3) and the resetting and unloading mechanism (2).

2. The metal plate rolling processing equipment according to claim 1, characterized in that: The rolling mechanism (1) comprises a base (11), a support frame (12) is fixed on the top of the base (11), a hydraulic cylinder (13) is fixed on the top of the support frame (12), an upper electric roller (14) is fixed on the bottom end of the hydraulic cylinder (13), a pressure sensor is installed inside the upper electric roller (14), and a lower electric roller (15) is fixed on the top of the base (11).

3. The metal plate rolling processing equipment according to claim 2, characterized in that: The position limiting and positioning mechanism (4) comprises a mounting frame (410) fixed on both sides of the base (11), a material discharge plate (41) being fixed on the top of the mounting frame (410), a plurality of transmission grooves being provided on the top of the material discharge plate (41), and a transmission roller (48) being rotatably connected inside the transmission groove.

4. The metal plate rolling processing equipment according to claim 3, characterized in that: The limit positioning mechanism (4) also includes a slide groove (49) extending through one side of the base (11), a plurality of guide rods (42) are fixed inside the slide groove (49), a sliding plate (44) is sleeved outside the plurality of guide rods (42), a spring (43) is fixed on the side away from each other of the two sliding plates (44), the spring (43) is sleeved outside the guide rod (42), the other end of the spring (43) is fixedly connected to the inner wall of the slide groove (49), and baffles (46) are fixed on both sides of the push plate frame (45).

5. The metal plate rolling processing equipment according to claim 4, characterized in that: The reset discharge mechanism (2) comprises two fixed frames (24) fixed in mirror image on the side away from the two discharge plates (41), and a bidirectional screw (21) and a second guide rod (22) are installed on both sides of the support frame (12), and the two ends of the bidirectional screw (21) are respectively rotatably connected to the fixed frame (24), and the two ends of the second guide rod (22) are respectively fixedly connected to the fixed frame (24), and a pulley (23) is fixed to the outside of one end of the bidirectional screw (21), and the two pulleys (23) are externally connected to the belt (25), and the external threads of the bidirectional screw (21) are sleeved with two L-shaped movable plates (26), and the L-shaped movable plates (26) are sleeved on the outside of the second guide rod (22) on the same side as the bidirectional screw (21), and the bidirectional screw (21) and the second guide rod (22) on the same side are externally rotatably connected to the same vertical plate (213), and the vertical plate (213) is fixedly connected to the base (11).

6. The metal plate rolling processing equipment according to claim 5, characterized in that: The reset unloading mechanism (2) further comprises a triangular dial plate (212) fixed to one side of the fixed frame (24); the two triangular dial plates (212) on the same side are mirror-mounted; a slideway (27) is provided at the bottom of the L-shaped movable plate (26); a second spring (28) is fixed to the inner wall of the slideway (27); a slider (29) is sleeved inside the slideway (27); the second spring (28) is fixedly connected to one side of the slider (29); a connecting block (210) is fixed to the bottom of the slider (29); the bottom of the connecting block (210) is rotatably connected to a limit block (211); a connection point between the limit block (211) and the connecting block (210) is located on a side close to the triangular dial plate (212); and a torsion spring is installed outside the connection point between the limit block (211) and the connecting block (210).

7. The metal plate rolling processing equipment according to claim 6, characterized in that: The transmission mechanism (3) comprises a rotating shaft (31) rotatably connected to one side of a housing of an upper electric roller (14); a gear 1 (32) is fixed to one end of the rotating shaft (31); a bevel gear 1 (33) is fixed to the other end of the rotating shaft (31); a gear 2 (34) is fixed to one side of a central axis of the upper electric roller (14); the gear 2 (34) is meshed with the gear 1 (32).

8. The metal plate rolling processing equipment according to claim 7, characterized in that: The transmission mechanism (3) further comprises a second bevel gear (35) fixed to the outside of one of the bidirectional screw rods (21), and the first bevel gear (33) moves up and down to mesh with the second bevel gear (35).

9. The metal plate rolling processing equipment according to claim 8, characterized in that: A controller is fixed on one side of the support frame (12), and the controller is electrically connected to the upper electric roller (14), the lower electric roller (15), the pressure sensor and the hydraulic cylinder (13).

10. A metal plate rolling process, which is applicable to the metal plate rolling equipment according to claim 9, characterized in that: The following steps are involved: S1: The rolling program is started by the controller. The controller starts the upper electric roller (14) to rotate forward. The upper electric roller (14) rotates forward to drive the second gear (34) to rotate. The rotation of the second gear (34) drives the first gear (32) and the bevel gear (33) to rotate. The rotation of the bevel gear (33) drives the second bevel gear (35) and the bidirectional screw (21) to rotate. The rotation of the bidirectional screw (21) drives another bidirectional screw (21) to rotate synchronously through the pulley (23) and the belt (25), so that the two L-shaped moving plates (26) located on the outside drive the lower structure to the baffle (46). The connecting block (210) and the limiting block (211) move in the same direction. Since the connection point between the connecting block (210) and the limiting block (211) is on the side away from the baffle (46), the limiting block (211) will be limited when it contacts the baffle (46). However, the L-shaped movable plate (26) continues to move at this time. Therefore, the resistance between the baffle (46) and the limiting block (211) causes the limiting block (211) to rotate around the connection point and compress the torsion spring to tilt. If the movement continues, the limiting block (211) will cross over the top of the baffle (46) and then be reset by the torsion spring. At this time, the L-shaped movable plate (26) has moved to the wire tail. S2: starting the upper electric roller (14) to reverse, causing the bidirectional screw (21) to reverse, causing the L-shaped movable plate (26) to drive the lower structure to reset, and the connection point of the connecting block (210) and the limit block (211) after crossing is oriented toward the baffle plate (46), so that when the limit block (211) moves back, the baffle plate (46) pushes the limit block (211) and the connecting block (210) to abut against each other, and the limit block (211) pushes the baffle plate (46) to drive the push plate frame (45) and the sliding plate (44) to move, and the sliding plate (44) moves to squeeze the spring 1 (43), so that the spring 1 (43) is compressed, and when the L-shaped movable plate (26) moves to the specified position, it contacts the triangular dial plate (212), and then stops moving; S3: The heated metal plate is placed on the top of the discharge plate (41), with the bottom in contact with the transmission roller (48), and then the controller continues to start the upper electric roller (14) to rotate and continue to move the limit block (211). The limit block (211) is blocked and drives the slider (29) along the slope of the triangular dial plate (212) to squeeze the spring 2 (28), and the limit block (211) moves to one side along the slope to gradually reduce the contact area with the baffle (46). When there is no contact at all, the baffle (46) is not blocked, and the spring 1 (43) drives the sliding plate (44) to drive the push plate The push plate rack (45) moves back and forth to reset, and one side of the push plate rack (45) is blocked by the metal plate placed on the top of the discharge plate (41) when resetting, while the other side is completely reset, and the blocked push plate rack (45) will make one side of the metal plate close to the upper electric roller (14) and the lower electric roller (15) through the spring 1 (43) and the transmission roller (48), and the metal plate will be affected by the triangular positioning plate (47) during the process of moving to fit the upper electric roller (14) and the lower electric roller (15), so that the entire metal plate is located between the two triangular positioning plates (47), that is, the center position; S4: The controller starts the hydraulic cylinder (13) to push the upper electric roller (14) downward by a certain distance so that the rolling gap is smaller than the height of the metal plate. At the same time, when moving downward, the bevel gear 1 (33) and the bevel gear 2 (35) are disengaged. At this time, the upper electric roller (14), the lower electric roller (15) and the pressure sensor are started at the same time, so that the metal plate on one side passes through the upper electric roller (14) and the lower electric roller (15) for preliminary rolling. After passing through, one end contacts the two triangular positioning plates (47) on the other side to position the metal plate to avoid displacement during rolling, and push the push plate frame (45) and The sliding plate (44) compresses the spring 1 (43), and when the sliding plate (44) is completely passed through, the moving push plate frame (45) stops moving, and the push plate frame (45) makes one side of the metal plate close to one side of the upper electric roller (14) and the lower electric roller (15), and then the hydraulic cylinder (13) is started to move the upper electric roller (14) downward by a specified distance, and then the upper electric roller (14) and the lower electric roller (15) are started to reverse and perform secondary rolling. According to the above steps, rolling is performed back and forth to achieve the specified size of rolled steel, and then the push plate frame (45) and other structures are reset according to the steps S1 and S2, and the rolled steel is removed to complete the processing.

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