Plate rolling machine for boiler production

Abstract

The utility model relates to the technical field of metal plate processing equipment, in particular to a plate rolling machine for boiler production, which comprises a rack and a compression roller assembly arranged on the rack, the compression roller assembly comprises an upper compression roller and a lower compression roller, the end parts of the upper compression roller and the lower compression roller are arranged on the rack, and the upper compression roller and the lower compression roller are arranged on the rack. A base plate is arranged between the upper pressing roller and the lower pressing roller, and the end of a plate is placed on the base plate during machining. A power assembly is arranged on one side of the rack, and the output end of the power assembly is connected with the lower pressing roller so as to drive the lower pressing roller to rotate; a lifting assembly is arranged in the rack, and the output end of the lifting assembly is connected with the upper pressing roller so as to drive the upper pressing roller to do lifting motion. According to the utility model, straight edge sections at the ends of the metal plates can be reduced, and the plate processing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal plate processing equipment, in particular to a plate rolling machine used in boiler production. Background Art

[0002] A plate rolling machine is a device that uses work rollers to bend sheet metal into various shapes, such as cylindrical and conical parts. It is a commonly used processing equipment. Using the principle of three points forming a circle, the plate rolling machine uses external forces such as hydraulic pressure and mechanical force to adjust the relative position between the side rollers and the upper roller. The metal sheet undergoes multiple continuous bends, producing permanent plastic deformation, and is then rolled into the desired cylindrical, conical, or other shaped parts.

[0003] During processing, the metal sheet to be processed is placed in the working area of ​​the plate rolling machine. The position and pressure of the rollers are then adjusted to squeeze and bend the sheet into the desired shape. However, due to the relative position and movement of the upper and lower rollers, the sheet is subjected to uneven force at both ends during the rolling process. This results in a length at each end that remains unbent, forming a straight edge. This affects the bending effect of the sheet and reduces processing quality. If the straight edge is removed, additional steps are added, reducing sheet processing efficiency. Utility Model Content

[0004] In order to improve the processing quality and efficiency of metal plates, the present application provides a plate rolling machine for boiler production.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] A plate rolling machine for boiler production comprises a frame and a pressure roller assembly mounted on the frame, the pressure roller assembly comprising an upper pressure roller and a lower pressure roller, the ends of the upper pressure roller and the lower pressure roller being mounted on the frame, a pad being provided between the upper pressure roller and the lower pressure roller, and the end of the plate being placed on the pad during processing; a power assembly is provided on one side of the frame, the output end of the power assembly is connected to the lower pressure roller to drive the lower pressure roller to rotate; a lifting assembly is provided inside the frame, the output end of the lifting assembly is connected to the upper pressure roller to drive the upper pressure roller to perform lifting and lowering movements.

[0007] By adopting the above device, a pad is placed between the upper and lower pressure rollers to effectively support the ends of the sheet, allowing them to be subjected to the pressure of the upper pressure roller, reducing the occurrence of straight edge segments and improving the processing quality of the sheet. The power assembly is directly connected to the lower pressure roller, efficiently driving the lower pressure roller to rotate. In conjunction with the lifting assembly, the upper pressure roller is precisely raised and lowered, allowing the operator to flexibly adjust the pressure and roller gap according to the thickness of the sheet and the required degree of curvature, adapting to the processing needs of sheets of different specifications and materials.

[0008] Preferably, the pad is arc-shaped, the convex surface of the pad is in contact with the lower pressing roller, and the concave surface of the pad faces the upper pressing roller.

[0009] By adopting the above-mentioned device, the pad is designed in an arc shape with the convex surface in contact with the lower pressure roller and the concave surface facing the upper pressure roller, so that the ends of the plate can better fit the upper and lower pressure rollers during the rolling process, reducing the formation of straight edge sections at the ends of the plate, thereby improving the bending effect and processing quality of the plate.

[0010] Preferably, there are two lower pressing rollers, namely a first lower pressing roller and a second lower pressing roller, and the first lower pressing roller and the second lower pressing roller are symmetrically arranged below the upper pressing roller.

[0011] By adopting the above device, the plate can produce plastic deformation and bend through the downward pressure of the upper pressure roller and the rotation of the lower pressure roller, and at the same time, the overall working efficiency of the plate rolling machine is improved.

[0012] Preferably, the power assembly includes a driving motor and a transmission member, the transmission member is connected to the output end of the driving motor to transmit the power of the power assembly to the transmission member, the transmission member is connected to the lower pressure roller, and the transmission member drives the lower pressure roller to rotate.

[0013] By adopting the above device, the power component drives the lower pressure roller to rotate, and cooperates with the pressure of the upper pressure roller, so that the metal sheet continuously passes between the upper and lower pressure rollers and is finally curled into shape, which helps to improve the processing efficiency of the sheet.

[0014] Preferably, a bearing seat is provided in the frame, and the end of the upper pressure roller is connected to the bearing seat.

[0015] Preferably, the lifting assembly includes two first hydraulic lifting rods, which are fixed to the top of the frame, and the telescopic ends of the first hydraulic lifting rods are connected to the top of the bearing seat to drive the bearing seat to perform lifting movement in the frame, thereby driving the upper pressure roller to perform lifting movement.

[0016] By adopting the above device, the bearing seat is driven to move up and down in the frame through the hydraulic lifting rod, which can provide a smooth and controllable lifting action, so that the upper pressure roller can be flexibly adjusted according to the thickness of the plate and the rolling requirements, thereby improving the flexibility and adaptability of the operation.

[0017] Preferably, a second hydraulic lifting rod is provided on one side of the frame, and an outer side wall of the frame is provided with a hinge seat for mounting the second hydraulic lifting rod, and both ends of the second hydraulic lifting rod are respectively connected to the hinge seat.

[0018] By adopting the above device, by arranging a second hydraulic lifting rod on one side of the frame and arranging a hinge seat on the outer side wall of the frame to install the lifting rod, the overall stability of the frame can be enhanced when subjected to a large rolling force.

[0019] Preferably, the diameter of the upper pressing roller is larger than the diameter of the lower pressing roller.

[0020] By adopting the above device, the larger diameter of the upper pressure roller can provide a larger contact area and a more uniform pressure distribution, which helps to improve the rolling effect of the plate, especially when rolling thicker plates, which can reduce local stress concentration and avoid uneven deformation of the plate.

[0021] This application has the following beneficial effects:

[0022] 1. In this application, by placing a pad between the upper and lower pressure rollers, the ends of the sheet material are evenly pressured by the upper pressure roller during processing, reducing the occurrence of straight edge segments and improving the processing quality of the sheet material. The power assembly is directly connected to the lower pressure roller, efficiently driving the lower pressure roller to rotate. The lifting assembly precisely controls the upper pressure roller, allowing the operator to flexibly adjust the pressure and roller distance according to the thickness of the sheet material and the required degree of curvature, adapting to the processing needs of sheets of different specifications and materials.

[0023] 2. In this application, the larger diameter of the upper pressure roller can provide a larger contact area and more uniform pressure distribution, which helps to improve the rolling effect of the plate, especially when rolling thicker plates, which can reduce local stress concentration and avoid uneven deformation of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a plate rolling machine used in boiler production according to an embodiment of the present utility model;

[0025] Figure 2 This is a side view of a plate rolling machine used in boiler production according to an embodiment of the present utility model;

[0026] Figure 3 It is a cross-sectional view of a plate rolling machine used for boiler production according to an embodiment of the present utility model.

[0027] Description of reference numerals:

[0028] 1. Frame; 11. Bearing seat; 12. Articulated seat; 13. Base; 14. Left support frame; 15. Right support frame; 2. Pressure roller assembly; 21. Upper pressure roller; 22. Lower pressure roller; 221. First lower pressure roller; 222. Second lower pressure roller; 3. Pad; 4. Power assembly; 41. Drive motor; 42. Transmission member; 5. Lifting assembly; 51. First hydraulic lift rod; 6. Second hydraulic lift rod. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-3 This application is described in further detail.

[0030] Example:

[0031] A plate rolling machine for boiler production, such as Figure 1 As shown, the device comprises a frame 1, a pressure roller assembly 2, a power assembly 4, and a lifting assembly 5. The frame 1 includes a base 13, a left support frame 14, and a right support frame 15. The pressure roller assembly 2 is mounted between the left and right support frames 14, 15, supporting the entire device and ensuring its stability. The power assembly 4 is mounted on one side of the left support frame 14 and connected to the pressure roller assembly 2, providing rotational power for the latter. The lifting assembly 5 is mounted within the frame 1, providing the upward and downward power for the pressure roller assembly 2.

[0032] like Figure 1-3 As shown, the pressure roller assembly 2 includes an upper pressure roller 21 and a lower pressure roller 22. Among them, the lower pressure roller 22 is provided with two, namely a first lower pressure roller 221 and a second lower pressure roller 222. The first lower pressure roller 221 and the second lower pressure roller 222 are symmetrically arranged below the upper pressure roller 21, so that the plate is subjected to uniform force during the bending process. In addition, two bearing seats 11 are provided in the frame 1, which are respectively located in the left support frame 14 and the right support frame 15, and the two ends of the upper pressure roller 21 are connected to the bearing seats 11. The upper pressure roller 21 acts as a passive roller. When the plate passes through, the upper pressure roller 21 will rotate with the movement of the plate.

[0033] like Figure 1-2 As shown, in order to flexibly adjust the distance between the upper pressure roller 21 and the lower pressure roller 22, the frame 1 is provided with two first hydraulic lifting rods 51. These two first hydraulic lifting rods 51 are respectively fixed to the top of the left support frame 14 and the right support frame 15, and the output ends of the two first hydraulic lifting rods 51 are fixedly connected to the top of the bearing seat 11 to drive the bearing seat 11 to move up and down, and synchronously drive the upper pressure roller 21 to move up and down. When processing the plate, the position of the upper pressure roller 21 is adjusted by the first hydraulic lifting according to the thickness of the plate and the bending requirements. The distance between the upper pressure roller 21 and the lower pressure roller 22 can be flexibly adjusted to meet the bending requirements of plates of different thicknesses.

[0034] In addition, if Figure 1 As shown, a second hydraulic lifting rod 6 is installed on one side of the left support frame 14, and an articulated seat 12 is provided on the outer wall of the frame 1 for installing the second hydraulic lifting rod 6. The second hydraulic lifting rod 6 can further adjust the overall posture of the frame 1 to ensure the overall stability of the equipment.

[0035] like Figure 1 and 3As shown, the diameter of the upper pressing roller 21 is larger than that of the two lower pressing rollers 22. When processing thicker sheets, the upper pressing roller 21 provides sufficient pressure and rigidity to prevent uneven deformation or inflexion during the rolling process. Furthermore, since thicker sheets require greater bending force, the larger diameter of the upper pressing roller 21 can better withstand the pressure and ensure smooth bending of the sheet. Furthermore, the larger diameter of the upper pressing roller 21 provides more even pressure distribution, reducing wrinkles and unevenness on the sheet surface, thereby improving processing accuracy.

[0036] like Figure 1 and 3 As shown, in order to pre-bend the plate, an arc-shaped pad 3 is provided between the upper pressing roller 21 and the lower pressing roller 22. During processing, the distance between the upper pressing roller 21 and the lower pressing roller 22 is adjusted, and the pad 3 is placed on the lower pressing roller 22 so that the concave surface of the pad 3 faces the upper pressing roller 21. The plate is placed in the working area of ​​the plate rolling machine, and the upper pressing roller 21 is adjusted again to press the plate and the pad 3 tightly, generating a certain friction force. Since the pad 3 has a certain curvature and pads 3 of different curvatures can be selected according to the bending requirements of the plate, the metal plate is pre-bent, effectively avoiding the straight edge section of the plate during processing, improving the processing quality of the plate, and eliminating the need to cut the plate, which is conducive to improving the processing efficiency of the plate.

[0037] like Figure 1 As shown, the power assembly 4 includes a drive motor 41 and a transmission member 42. The drive motor 41 is installed on one side of the right support frame 15. A reducer and a coupling are installed between the output end of the drive motor 41 and the transmission member 42. The coupling is connected to the transmission member to transmit the power of the power assembly 4 to the transmission member 42. The transmission member 42 is connected to the two lower pressure rollers 22, and the transmission member 42 drives the two lower pressure rollers 22 to rotate in the same direction. In this embodiment, the transmission member 42 uses a plurality of meshing gears to ensure stability and reliability during the transmission process. During operation, the drive motor 41 transmits power to the two lower pressure rollers 22 step by step through the reducer, coupling and transmission member 42, realizing the rotation of the lower pressure rollers 22, thereby bending the plate.

[0038] Working Principle: During processing, the position of the upper pressure roller 21 is adjusted via the first hydraulic lift rod 51, and the pad 3 is placed on the lower pressure roller 22, with the concave surface of the pad 3 facing the upper pressure roller 21. The sheet is then placed into the working area of ​​the plate rolling machine, and the upper pressure roller 21 is adjusted again to press the sheet against the pad 3, generating a certain amount of friction. The drive motor 41 is then started, causing the lower pressure roller 22 to rotate and process the sheet. Because the pad 3 provides support for the ends of the sheet, the ends of the sheet can better fit the upper and lower pressure rollers 21 and 22 during the rolling process, which helps reduce the formation of straight edges at the ends of the sheet, thereby improving the bending effect and processing quality of the sheet.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plate rolling machine for boiler production, characterized in that: The invention comprises a frame (1) and a pressure roller assembly (2) mounted on the frame (1), wherein the pressure roller assembly (2) comprises an upper pressure roller (21) and a lower pressure roller (22), the ends of the upper pressure roller (21) and the lower pressure roller (22) are mounted on the frame (1), a pad (3) is provided between the upper pressure roller (21) and the lower pressure roller (22), and the end of the plate is placed on the pad (3) during processing; a power assembly (4) is provided on one side of the frame (1), the output end of the power assembly (4) is connected to the lower pressure roller (22) to drive the lower pressure roller (22) to rotate; a lifting assembly (5) is provided inside the frame (1), the output end of the lifting assembly (5) is connected to the upper pressure roller (21) to drive the upper pressure roller (21) to perform lifting and lowering movements.

2. A plate rolling machine for boiler production according to claim 1, characterized in that: The pad (3) is arc-shaped, the convex surface of the pad (3) is in contact with the lower pressing roller (22), and the concave surface of the pad (3) faces the upper pressing roller (21).

3. The plate rolling machine for boiler production according to claim 1, characterized in that: Two lower pressing rollers (22) are provided, namely a first lower pressing roller (221) and a second lower pressing roller (222), and the first lower pressing roller (221) and the second lower pressing roller (222) are symmetrically arranged below the upper pressing roller (21).

4. The plate rolling machine for boiler production according to claim 1, characterized in that: The power assembly (4) includes a driving motor (41) and a transmission member (42). The transmission member (42) is connected to the output end of the driving motor (41) to transmit the power of the power assembly (4) to the transmission member (42). The transmission member (42) is connected to the lower pressure roller (22), and the transmission member (42) drives the lower pressure roller (22) to rotate.

5. The plate rolling machine for boiler production according to claim 1, characterized in that: A bearing seat (11) is provided in the frame (1), and an end portion of the upper pressure roller (21) is connected to the bearing seat (11).

6. The plate rolling machine for boiler production according to claim 5, characterized in that: The lifting assembly (5) includes two first hydraulic lifting rods (51), the two first hydraulic lifting rods (51) are fixed to the top of the frame (1), and the telescopic ends of the first hydraulic lifting rods (51) are connected to the top of the bearing seat (11) to drive the bearing seat (11) to move up and down in the frame (1), thereby driving the upper pressure roller (21) to move up and down.

7. The plate rolling machine for boiler production according to claim 1, characterized in that: A second hydraulic lifting rod (6) is provided on one side of the frame (1), and an articulated seat (12) for mounting the second hydraulic lifting rod (6) is provided on the outer side wall of the frame (1), with both ends of the second hydraulic lifting rod (6) being connected to the articulated seat (12) respectively.

8. The plate rolling machine for boiler production according to claim 1, characterized in that: The diameter of the upper pressing roller (21) is greater than the diameter of the lower pressing roller (22).

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