An improved four-roll CNC plate rolling machine

Abstract

This invention belongs to the field of plate rolling machine technology, specifically an improved four-roll CNC plate rolling machine, including a plate rolling machine body; an auxiliary plate rolling mechanism is installed on the left side of the plate rolling machine body; the auxiliary plate rolling mechanism includes a pushing component and a limiting component; the pushing component includes two drive rollers; mounting frames are fixedly connected to both sides of the two drive rollers; a drive motor is installed on the mounting frame away from the plate rolling machine body, and the drive motor is used to drive the drive rollers to rotate; a conveyor belt is rotatably connected to the two drive rollers; the conveyor belt has evenly arranged grooves; a convex plate is slidably connected to each groove by a spring; limiting components are installed on the front and rear sides of the conveyor belt; this invention is mainly used to solve the problem that when processing plates of different specifications, it is necessary to manually screw the screw at the bottom of the telescopic rod into the threaded hole corresponding to the plate each time, which makes it impossible to achieve normal automated feeding.

Description

Technical Field

[0001] This invention belongs to the field of plate rolling machine technology, specifically an improved four-roll CNC plate rolling machine. Background Technology

[0002] A plate rolling machine is a common forging and pressing machine that can bend non-metallic plates into cones, spheres, cylinders or other shapes. In a four-roll plate rolling machine, the upper roller is positioned differently, the lower roller moves upward gradually to clamp the steel plate, and the two side rollers move upward in a straight line or arc to adjust the curvature radius of the roll, thereby rolling the plate into cylinders, cones or spheres with different curvature radii.

[0003] Currently, plate rolling machines require manual feeding before processing sheet metal. This involves manually pushing the sheet metal between the upper and lower rollers. Since sheet metal has its own weight, this method is time-consuming and labor-intensive, and it also reduces the efficiency of the rolling process. Furthermore, when the sheet metal is being rolled on a four-roll CNC plate rolling machine, it is prone to vibration, gradually tilting and deviating from the intended processing trajectory, affecting the rolling effect.

[0004] Our original patent, CN111331013B, entitled "A Four-Roll CNC Plate Rolling Machine," describes a technology that, through the installation of a conveyor belt and drive structure, automatically feeds the plate material between the upper and lower rollers of the four-roll CNC plate rolling machine, enabling automatic feeding. Furthermore, by incorporating an adjustable telescopic rod, the distance between the telescopic rod and the four-roll plate rolling machine can be adjusted by screwing the screws at the bottom of the rod into different threaded holes. This allows for the restraint of the plate material, preventing it from vibrating and thus addressing the aforementioned issues.

[0005] However, in subsequent use, when processing boards of different specifications, it was necessary to manually screw the screw at the bottom of the telescopic rod into the threaded hole that aligns with the board each time, making it impossible to achieve automated feeding. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this invention designs an improved four-roll CNC plate rolling machine, including a plate rolling machine body; an auxiliary plate rolling mechanism is installed on the left side of the plate rolling machine body; the auxiliary plate rolling mechanism includes a pushing component and a limiting component; the pushing component includes two drive rollers, one of which is close to the plate rolling machine body.

[0007] Both drive rollers are fixedly connected to mounting frames on both sides, and the mounting frames are installed on the ground; a drive motor is installed on the mounting frame away from the plate rolling machine body, and the drive motor is used to drive the drive rollers to rotate.

[0008] A conveyor belt is rotatably connected to the two drive rollers; the conveyor belt has evenly arranged grooves; each groove is slidably connected to a convex plate by a spring, and the convex plate initially extends out of the conveyor belt and is slidably connected to the conveyor belt;

[0009] Limiting components are installed on the front and rear sides of the conveyor belt; the limiting components include two mounting plates, which are located on the front and rear sides of the plate rolling machine body respectively; two support rods are fixedly connected to the bottom of each of the two mounting plates, and the other side of the support rods is installed on the ground; a driven component is installed on the side of each of the two mounting plates near the plate rolling machine body, and the driven component is used to push the mounting plate to rotate when the plate is pre-bent.

[0010] The two mounting plates are provided with limiting plates on opposite sides of the conveyor belt, and the side of the limiting plates away from the plate rolling machine body is bent outward; the two limiting plates are rotatably connected to evenly arranged drive columns on opposite sides, and the drive columns extend to one side of the conveyor belt.

[0011] Guide rods are fixedly connected to the opposite sides of the drive columns on the two limiting plates, and the guide rods extend into the mounting plate; a connecting rod is slidably connected to the two opposing drive columns and the guide rods, and the connecting rod passes through the middle of the conveyor belt;

[0012] The guide rods extending to the mounting plates are each provided with a first limiting groove within the mounting plates; each first limiting groove is slidably connected to a first limiting block, and the guide rods pass through the first limiting blocks; each first limiting block is fixedly connected to a limiting plate with a spring, and the guide rods pass through the springs; each first limiting block has a spring fixedly connected to its bottom, and the other side of the spring is connected to the bottom of the first limiting groove; both mounting plates have rectangular plates fixedly connected to their bottoms, and the rectangular plates extend below the limiting plates, with a distance between them and the limiting plates;

[0013] Each of the drive columns is provided with an extrusion roller; the surface of the extrusion roller is provided with an annular groove, and a limiting plate extends into the annular groove; the center positions of two opposite extrusion rollers are slidably connected with a rectangular rod, and the rectangular rod extends to two mounting plates.

[0014] The rectangular rod extends to one end of the mounting plate, and a second limiting groove is provided in the inner wall of the mounting plate; a second limiting block is slidably connected in the second limiting groove; a spring is fixedly connected to the bottom of the second limiting block, and the other end of the spring is fixedly connected to the bottom of the second limiting groove; a limiting disk is rotatably connected in each of the second limiting blocks, and the rectangular rod passes through the limiting disk.

[0015] A fixing component is installed between each of the two adjacent drive columns on the limiting plate, and the fixing component is used to fix the plate.

[0016] Preferably, the fixing component includes a fixing block; the fixing block is installed at the bottom of the limiting plate; and the limiting plate has uniformly arranged fixing grooves on the surface of the rectangular plate below it.

[0017] A rotating rod is rotatably connected between two adjacent drive columns within the limiting plate via a torsion spring; the rotating rod extends to the bottom of the limiting plate; the fixing block is fixed to the rotating rod, and in the initial state, the fixing block is perpendicular to the limiting plate;

[0018] Each of the fixed blocks has a rectangular slot inside the limiting plate above it, and the rotating rod passes through the rectangular slot; a driven block is fixedly connected to the surface of the rotating rod inside each of the rectangular slots, and the driven block is exactly the same in shape and size as the fixed block; the fixed slot is an inclined slot and is adapted to the driven block that rotates into the rectangular slot; a long slot is opened in the middle of the multiple fixed slots, and the long slot is adapted to the rotating rod;

[0019] The bottom of each of the aforementioned fixing blocks is rounded.

[0020] Preferably, each of the convex plates is equipped with a magnetic block;

[0021] Each of the annular grooves has a limiting rod fixedly connected to both sides at the top of the limiting plate, and the limiting rod passes through the annular groove and extends to the position above the extrusion roller.

[0022] Preferably, the driven component includes a driven rod, and the driven rod rotates on the plate rolling machine body via a rotating shaft; the shaft on the side roller of the plate rolling machine body extends to the bottom position of the driven rod;

[0023] The support rod away from the plate rolling machine body is an electric telescopic rod; the top of the electric telescopic rod is provided with a slide rail at the bottom of the mounting plate, and a sliding plate is slidably connected in the slide rail; the electric telescopic rod is ball-jointed with the sliding plate.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. The improved four-roll CNC plate rolling machine of the present invention, by setting two sliding limit plates, can automatically adjust the position of the two limit plates according to the width of the plate and make the two limit plates fit with the front and rear sides of the plate. The plate after being fitted with the limit plates will be corrected, thereby preventing the plate from entering the plate rolling machine body at an angle and reducing the processing accuracy of the plate. At the same time, the top of the plate is squeezed and fixed by the extrusion roller, and the plate is fixed by the fixing component. This can prevent the plate from shaking after entering the plate rolling machine body for processing. If the shaking plate shakes, it will cause the limit plates to slide, thus failing to fix the plate and failing to prevent the plate from shaking. This will cause the shaking plate to shift in the plate rolling machine body and affect the plate rolling effect.

[0026] 2. The improved four-roll CNC plate rolling machine of the present invention ensures that the fixing block moves down into the fixing groove only after the plate passes through all the fixing components. This prevents the fixing block on the first fixing component from inserting into the fixing groove after the plate passes through the first fixing component, thus limiting and fixing the limiting plate. If the plate is slanted at this time, when the plate moves to the side where the limiting plate is not bent outward, the fixed limiting plate cannot squeeze and correct the plate, nor can it adhere and limit the plate. This causes the plate to shake between the two limiting plates during rolling, thus affecting the rolling accuracy.

[0027] 3. The improved four-roll CNC plate rolling machine of the present invention, when the plate rolling machine body pre-bends the plate, the left side roller will rotate upward under the push of the hydraulic cylinder, and at the same time the shaft on the side roller will drive the driven rod to rotate, while controlling the electric telescopic rod to gradually extend. During the rotation of the driven rod and the extension of the electric telescopic rod, the mounting plate, guide rod, rectangular rod, limit plate and plate can be driven to rotate. At the same time, the connecting rod will squeeze the conveyor belt, so that the plate after the limit is fixed can still be pre-bent, and it will not contradict the operating steps of the existing plate rolling machine. Attached Figure Description

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] Figure 1 This is a perspective view of the entire invention;

[0030] Figure 2 This is the present invention. Figure 1 Enlarged view of a portion of point A in the middle;

[0031] Figure 3 This is a structural diagram of the feeding assembly in this invention;

[0032] Figure 4 This is a structural diagram of the limiting component in this invention;

[0033] Figure 5 This is the present invention. Figure 4 Enlarged view of a section at point B in the middle;

[0034] Figure 6 This is a structural diagram of the fixing component in this invention;

[0035] Figure 7 This is a structural diagram of the rotating rod, fixing block, driven block, and fixing groove in the fixing assembly of the present invention;

[0036] Figure 8 This is a schematic diagram of the mounting plate and slide rail in this invention;

[0037] Figure 9 This is a top view of the auxiliary rolling plate mechanism in this invention;

[0038] Figure 10 This is the present invention. Figure 9 Enlarged view of the area at CC;

[0039] Figure 11 This is the present invention. Figure 10 Enlarged view of a section at point D.

[0040] In the diagram: 1. Plate rolling machine body; 11. Driven rod; 2. Drive roller; 21. Mounting frame; 22. Conveyor belt; 23. Slide groove; 24. Convex plate; 3. Mounting plate; 31. Support rod; 32. First limiting groove; 33. First limiting block; 34. Second limiting groove; 35. Second limiting block; 36. Limiting plate; 37. Slide rail; 38. Slide plate; 4. Limiting plate; 41. Drive column; 42. Guide rod; 43. Connecting rod; 44. Extrusion roller; 45. Annular groove; 46. Rectangular rod; 47. Limiting rod; 5. Rectangular plate; 51. Fixed groove; 52. Long groove; 6. Fixed block; 61. Rotating rod; 62. Rectangular groove; 63. Driven block. Detailed Implementation

[0041] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0042] like Figures 1 to 11 As shown, this invention relates to an improved four-roll CNC plate rolling machine; Example

[0043] The plate rolling machine includes a plate rolling machine body 1; an auxiliary plate rolling mechanism is installed on the left side of the plate rolling machine body 1; the auxiliary plate rolling mechanism includes a pushing component and a limiting component; the pushing component includes two drive rollers 2, and one of the drive rollers 2 is close to the plate rolling machine body 1.

[0044] Both sides of the two drive rollers 2 are fixedly connected to mounting brackets 21, and the mounting brackets 21 are installed on the ground; a drive motor is installed on the mounting bracket 21 away from the plate rolling machine body 1, and the drive motor is used to drive the drive rollers 2 to rotate.

[0045] A conveyor belt 22 is rotatably connected to the two drive rollers 2; the conveyor belt 22 is provided with uniformly arranged grooves 23; each groove 23 is slidably connected to a convex plate 24 by a spring, and the convex plate 24 extends out of the conveyor belt 22 in the initial state and is slidably connected to the conveyor belt 22.

[0046] Limiting components are installed on the front and rear sides of the conveyor belt 22; the limiting components include two mounting plates 3, and the two mounting plates 3 are respectively located on the front and rear sides of the plate rolling machine body 1; two support rods 31 are fixedly connected to the bottom of each of the two mounting plates 3, and the other side of the support rods 31 is installed on the ground; a driven component is installed on the side of each of the two mounting plates 3 near the plate rolling machine body 1, and the driven component is used to push the mounting plate 3 to rotate when pre-bending the plate;

[0047] The two mounting plates 3 are provided with limiting plates 4 on opposite sides of the conveyor belt 22, and the limiting plates 4 are bent outward on the side away from the plate rolling machine body 1; the two limiting plates 4 are rotatably connected to the opposite sides of the conveyor belt 22 with evenly arranged drive columns 41, and the drive columns 41 extend to one side of the conveyor belt 22.

[0048] Guide rods 42 are fixedly connected to the opposite sides of the drive columns 41 on the two limiting plates 4, and the guide rods 42 extend into the mounting plate 3; a connecting rod 43 is slidably connected to the two opposing drive columns 41 and the guide rods 42, and the connecting rod 43 passes through the middle of the conveyor belt 22.

[0049] The guide rod 42 extends to one end of the mounting plate 3, and a first limiting groove 32 is formed in the mounting plate 3. A first limiting block 33 is slidably connected in the first limiting groove 32, and the guide rod 42 passes through the first limiting block 33. A spring is fixedly connected between each first limiting block 33 and the limiting plate 4, and the guide rod 42 passes through the spring. A spring is fixedly connected to the bottom of each first limiting block 33, and the other side of the spring is connected to the bottom of the first limiting groove 32. A rectangular plate 5 is fixedly connected to the bottom of both mounting plates 3, and the rectangular plate 5 extends below the limiting plate 4 and leaves a distance between it and the limiting plate 4.

[0050] Each of the drive columns 41 is provided with an extrusion roller 44 above it; the surface of the extrusion roller 44 is provided with an annular groove 45, and the limiting plate 4 extends into the annular groove 45; the center positions of the two opposing extrusion rollers 44 are slidably connected with a rectangular rod 46, and the rectangular rod 46 extends to the two mounting plates 3.

[0051] The rectangular rod 46 extends to one end of the mounting plate 3, and a second limiting groove 34 is provided in the inner wall of the mounting plate 3; a second limiting block 35 is slidably connected in the second limiting groove 34; a spring is fixedly connected to the bottom of the second limiting block 35, and the other end of the spring is fixedly connected to the bottom of the second limiting groove 34; a limiting disk 36 is rotatably connected in each of the second limiting blocks 35, and the rectangular rod 46 passes through the limiting disk 36.

[0052] A fixing component is installed between each of the two adjacent drive columns 41 on the limiting plate 4, and the fixing component is used to fix the plate.

[0053] During operation, the conveyor belt 22 first transports the sheet material to be processed. The sheet material on the conveyor belt 22, under its own weight, presses against the convex plate 24 below it, causing the convex plate 24 to slide into the chute 23 and bringing the sheet material into contact with the conveyor belt 22. As the conveyor belt 22 moves the sheet material, it first contacts the outwardly bent side of the limiting plate 4. The limiting plate 4 hinders the movement of the sheet material, ensuring that the rotational speed of the conveyor belt 22 is greater than the speed of the sheet material. This causes the convex plate 24 on the left side of the sheet material to contact the left end face of the sheet material. The convex plate 24 in contact with the sheet material, as well as the outwardly bent side of the limiting plate 4, gradually corrects the position of the sheet material and guides it, preventing the sheet material from moving outwards from the limiting plate 4. The curved side is parallel, and the plate will squeeze the limiting plate 4 to move towards the mounting plate 3. The limiting plate 4 will drive the drive column 41 and the guide rod 42 to move towards the mounting plate 3. The guide rod 42 will gradually pass through the first limiting block 33. At the same time, the limiting plate 4 squeezes the spring connecting the first limiting block 33 and the limiting plate 4. The connecting rod 43, which is slidably connected to the drive column 41 and the guide rod 42, gradually extends. When the plate enters the side of the limiting plate 4 that is not bent outward, the plate is located above the drive column 41. At the same time, the limiting plates 4 on both sides are in contact with the plate. At this time, the plate can be corrected during the feeding process to prevent the plate from entering the plate rolling machine body 1 at an angle and reducing the processing accuracy of the plate.

[0054] Simultaneously, when the sheet metal pushes the limiting plates 4 on both sides to move towards the mounting plate 3, the limiting plates 4 extend into the annular groove 45 on the extrusion roller 44, thereby driving the extrusion roller 44 to move towards the mounting plate 3 on the rectangular rod 46. At the same time, when the convex plate 24 pushes the sheet metal between the drive column 41 and the extrusion roller 44, the presence of the fixing components prevents the drive column 41 from moving downwards. Therefore, the sheet metal pushes the extrusion roller 44 upwards, and the extrusion roller 44 drives the rectangular rod 46, the limiting plate 36, and the second limiting block 35 to move upwards within the second limiting groove 34. At this time, the extrusion roller 44 extrudes the sheet metal, thereby pressing the sheet metal... The material is fixed during transportation to prevent it from shaking when it enters the plate rolling machine body 1 for processing. When the plate passes through all the fixing mechanisms, the pressing roller 44 can drive the limiting plate 4, drive column 41, plate and fixing mechanism to move down. The fixing mechanism can then limit and fix the limiting plate 4, preventing the plate from shaking when it enters the plate rolling machine body 1. This would cause the shaking plate to slide and make it impossible to fix the plate, thus preventing the plate from shaking and causing it to shift inside the plate rolling machine body 1, affecting the plate rolling effect.

[0055] When the plate rolling machine body 1 processes the plate, when the plate rolling machine body 1 pre-bends the plate, the side rollers on the plate rolling machine body 1 will drive the mounting plate 3, the limiting plate 4 and the plate to rotate through the driven component, so that the plate after being limited and fixed can still be pre-bent.

[0056] In summary, by setting two sliding limit plates 4, the two limit plates 4 can automatically adjust their positions according to the width of the plate and fit against the front and rear sides of the plate. After the plate is fitted with the limit plates 4, the plate will be corrected, thereby preventing the plate from entering the plate rolling machine body 1 at an angle and reducing the processing accuracy of the plate. At the same time, the top of the plate is squeezed and fixed by the extrusion roller 44, and the plate is fixed by the fixing component. This can prevent the plate from shaking after entering the plate rolling machine body 1. If the plate shakes, it will cause the limit plates 4 to slide, thus failing to fix the plate and preventing the plate from shaking. This will cause the shaking plate to shift within the plate rolling machine body 1, affecting the plate rolling effect. Example

[0057] The fixing component includes a fixing block 6; the fixing block 6 is installed at the bottom of the limiting plate 4; the limiting plate 4 has uniformly arranged fixing grooves 51 on the surface of the rectangular plate 5 below it;

[0058] A rotating rod 61 is rotatably connected between two adjacent drive columns 41 within the limiting plate 4 via a torsion spring; the rotating rod 61 extends to the bottom of the limiting plate 4; the fixing block 6 is fixedly connected to the rotating rod 61, and in the initial state the fixing block 6 is perpendicular to the limiting plate 4;

[0059] Each of the fixed blocks 6 has a rectangular slot 62 inside the limiting plate 4, and the rotating rod 61 passes through the rectangular slot 62; a driven block 63 is fixedly connected to the surface of the rotating rod 61 inside each rectangular slot 62, and the driven block 63 is exactly the same in shape and size as the fixed block 6; the fixed slot 51 is an inclined slot and is adapted to the driven block 63 that rotates into the rectangular slot 62; a long slot 52 is opened in the middle of the multiple fixed slots 51, and the long slot 52 is adapted to the rotating rod 61;

[0060] Each of the fixing blocks 6 has rounded corners at the bottom;

[0061] During operation, when the sheet material passes through the fixing assembly, it contacts the driven block 63 in the rectangular groove 62, which then pushes the driven block 63 to rotate until it enters the rectangular groove 62. Simultaneously, the driven block 63 drives the rotating rod 61 to rotate, overcoming the torque of the torsion spring on the rotating rod 61. The rotating rod 61 also drives the fixing block 6 to rotate, and the rotated fixing block 6 is then fitted into the fixing groove 51. Since there are multiple fixing assemblies, each time the sheet material passes through a fixing assembly, it pushes the rotating rod 61 in the fixing assembly to rotate, and the rotation is carried out through the rotating rod... 61 drives the fixing blocks 6 on different fixing components to rotate to match the fixing groove 51. After the plate passes through all the fixing components, it will push the drive column 41 to move down under the pressure of the extrusion roller 44. The drive column 41 drives the limiting plate 4, guide rod 42, and first limiting block 33 to move down in the first limiting groove 32. The first limiting block 33 compresses the spring. Then, the fixing blocks 6 on all the fixing components are inserted into the corresponding fixing groove 51. Since the bottom of the fixing block 6 is rounded, the fixing block 6 can be easily inserted into the fixing groove 51.

[0062] In summary, after the sheet material passes through all the fixing components, most of the sheet material moves to the side of the limiting plate 4 that is not bent outwards, and the limiting plate 4 is in contact with the sheet material. Only after the sheet material passes through all the fixing components can the fixing block 6 move down into the fixing groove 51. This prevents the fixing block 6 on the first fixing component from being inserted into the fixing groove 51 after the sheet material passes through the first fixing component, thus limiting and fixing the limiting plate 4. If the sheet material is slanted at this time, when the sheet material moves to the side of the limiting plate 4 that is not bent outwards, the fixed limiting plate 4 cannot squeeze and correct the sheet material, nor can it be in contact with and limit and fix the sheet material. This will cause the sheet material to shake between the two limiting plates 4 during rolling, thus affecting the rolling accuracy of the sheet material. Example

[0063] Each of the convex plates 24 is equipped with a magnetic block;

[0064] Each of the annular grooves 45 has a limiting rod 47 fixedly connected to both sides of the top of the limiting plate 4, and the limiting rod 47 passes through the annular groove 45 and extends to the position above the extrusion roller 44.

[0065] During operation, since the convex plate 24 is equipped with a magnetic block, when the convex plate 24 is attached to the left end face of the plate, the magnetic block will attract the plate. Then, during the guiding and correction process of the arc plate, the plate will be completely attached to the left convex plate 24 and completely attracted to the magnetic block in the convex plate 24.

[0066] Since the limiting rod 47 passes through the annular groove 45, when rolling a thicker sheet, and the sheet passes the drive column 41 and the extrusion roller 44, the extrusion roller 44 moves up a greater distance. Due to the presence of the limiting rod 47, the extrusion roller 44 can be kept in a limited position, preventing the extrusion roller 44 from detaching from the limiting plate 4. At the same time, the auxiliary rolling mechanism can be used with sheets of different thicknesses and widths, which can improve the applicability of the auxiliary rolling mechanism. Example

[0067] The driven component includes a driven rod 11, and the driven rod 11 rotates on the plate rolling machine body 1 via a rotating shaft; the shaft on the side roller of the plate rolling machine body 1 extends to the bottom position of the driven rod 11;

[0068] The support rod 31, which is away from the plate rolling machine body 1, is an electric telescopic rod; the top of the electric telescopic rod is provided with a slide rail 37 at the bottom of the mounting plate 3, and a sliding plate 38 is slidably connected in the slide rail 37; the electric telescopic rod and the sliding plate 38 are ball-jointed.

[0069] During operation, when the plate rolling machine body 1 pre-bends the plate, the left-side roller rotates upward under the push of the hydraulic cylinder. At the same time, the shaft on the side roller drives the driven rod 11 to rotate, and controls the electric telescopic rod to gradually extend. During the rotation of the driven rod 11 and the extension of the electric telescopic rod, the mounting plate 3, guide rod 42, rectangular rod 46, limit plate 4 and plate can be rotated. Meanwhile, the connecting rod 43 will squeeze the conveyor belt 22, so that the plate after being limited and fixed can still be pre-bent without violating the operating procedures of the existing plate rolling machine.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved four-roll CNC plate rolling machine, comprising a plate rolling machine body (1); characterized in that: An auxiliary plate rolling mechanism is installed on the left side of the plate rolling machine body (1); the auxiliary plate rolling mechanism includes a pushing component and a limiting component; the pushing component includes two drive rollers (2), and one of the drive rollers (2) is close to the plate rolling machine body (1); Mounting brackets (21) are fixedly connected to both sides of the two drive rollers (2), and the mounting brackets (21) are mounted on the ground; a drive motor is mounted on the mounting bracket (21) away from the plate rolling machine body (1), and the drive motor is used to drive the drive rollers (2) to rotate. A conveyor belt (22) is rotatably connected to the two drive rollers (2); the conveyor belt (22) is provided with uniformly arranged grooves (23); each groove (23) is slidably connected to a convex plate (24) by a spring, and the convex plate (24) extends out of the conveyor belt (22) in the initial state and is slidably connected to the conveyor belt (22); Limiting components are installed on the front and rear sides of the conveyor belt (22); the limiting components include two mounting plates (3), and the two mounting plates (3) are respectively located on the front and rear sides of the plate rolling machine body (1); two support rods (31) are fixedly connected to the bottom of the two mounting plates (3), and the other side of the support rods (31) is installed on the ground; a driven component is installed on the side of the two mounting plates (3) near the plate rolling machine body (1), and the driven component is used to push the mounting plate (3) to rotate when pre-bending the plate; The two mounting plates (3) are provided with limiting plates (4) on opposite sides of the conveyor belt (22) and the limiting plates (4) are bent outward on the side away from the plate rolling machine body (1); the two limiting plates (4) are rotatably connected to the opposite sides with uniformly arranged drive columns (41) and the drive columns (41) extend to one side of the conveyor belt (22). Guide rods (42) are fixedly connected to the opposite sides of the drive columns (41) on the two limiting plates (4), and the guide rods (42) extend into the mounting plate (3); the two opposing drive columns (41) and the guide rods (42) are slidably connected to a connecting rod (43), and the connecting rod (43) passes through the middle of the conveyor belt (22); The guide rod (42) extends to one end of the mounting plate (3) and is provided with a first limiting groove (32) in the mounting plate (3); a first limiting block (33) is slidably connected in the first limiting groove (32), and the guide rod (42) passes through the first limiting block (33); a spring is fixedly connected between each first limiting block (33) and the limiting plate (4), and the guide rod (42) passes through the spring; a spring is fixedly connected to the bottom of each first limiting block (33), and the other side of the spring is connected to the bottom of the first limiting groove (32); a rectangular plate (5) is fixedly connected to the bottom of both mounting plates (3), and the rectangular plate (5) extends to the bottom of the limiting plate (4) and leaves a distance between it and the limiting plate (4); Each of the drive columns (41) is provided with an extrusion roller (44); the surface of the extrusion roller (44) is provided with an annular groove (45), and the limiting plate (4) extends into the annular groove (45); the center positions of the two opposing extrusion rollers (44) are slidably connected with a rectangular rod (46), and the rectangular rod (46) extends to the two mounting plates (3); The rectangular rod (46) extends to one end of the mounting plate (3) and is provided with a second limiting groove (34) in the inner wall of the mounting plate (3); a second limiting block (35) is slidably connected in the second limiting groove (34); a spring is fixedly connected to the bottom of the second limiting block (35), and the other end of the spring is fixedly connected to the bottom of the second limiting groove (34); a limiting disk (36) is rotatably connected in each of the second limiting blocks (35), and the rectangular rod (46) passes through the limiting disk (36); Each of the two adjacent drive columns (41) is equipped with a fixing component on the limiting plate (4), and the fixing component is used to fix the plate. There are multiple fixing components. The fixing component includes a fixing block (6). The fixing block (6) is installed at the bottom of the limiting plate (4). The fixing plate (4) is provided with uniformly arranged fixing grooves (51) on the surface of the rectangular plate (5) below the limiting plate (4). The fixing block (6) is inserted into the corresponding fixing groove (51). A rotating rod (61) is rotatably connected between two adjacent drive columns (41) within the limiting plate (4) via a torsion spring; the rotating rod (61) extends to the bottom of the limiting plate (4); the fixing block (6) is fixedly connected to the rotating rod (61), and in the initial state the fixing block (6) is perpendicular to the limiting plate (4); Each of the fixed blocks (6) has a rectangular groove (62) inside the limiting plate (4) above it, and the rotating rod (61) passes through the rectangular groove (62); each of the rectangular grooves (62) has a driven block (63) fixedly connected to the surface of the rotating rod (61), and the driven block (63) is exactly the same in shape and size as the fixed block (6); the fixed groove (51) is an inclined groove and is adapted to the driven block (63) that rotates into the rectangular groove (62); a long groove (52) is opened in the middle of the multiple fixed grooves (51), and the long groove (52) is adapted to the rotating rod (61).

2. The improved four-roll CNC plate rolling machine according to claim 1, characterized in that: The bottom of each of the fixing blocks (6) is rounded.

3. An improved four-roll CNC plate rolling machine according to claim 2, characterized in that: Each of the convex plates (24) is equipped with a magnetic block.

4. An improved four-roll CNC plate rolling machine according to claim 3, characterized in that: Each of the annular grooves (45) has a limiting rod (47) fixedly connected to both sides of the limiting plate (4) at the top, and the limiting rod (47) passes through the annular groove (45) and extends to the position above the extrusion roller (44).

5. An improved four-roll CNC plate rolling machine according to claim 4, characterized in that: The driven component includes a driven rod (11), which rotates on the plate rolling machine body (1) via a rotating shaft; the shaft on the side roller of the plate rolling machine body (1) extends to the bottom position of the driven rod (11).

6. An improved four-roll CNC plate rolling machine according to claim 5, characterized in that: The support rod (31) away from the plate rolling machine body (1) is an electric telescopic rod; the top of the electric telescopic rod is provided with a slide rail (37) at the bottom of the mounting plate (3), and a sliding plate (38) is slidably connected in the slide rail (37); the electric telescopic rod and the sliding plate (38) are ball-jointed.

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