Steel plate rolling forming machine

Abstract

The invention discloses a steel plate rolling forming machine, and relates to the technical field of steel plate manufacturing, the steel plate rolling forming machine comprises a bottom frame and compression rollers, the compression rollers comprise a conveying roller, a forming roller and a shaping roller, the conveying roller is located below the forming roller and the shaping roller, a control frame is located at the feeding end of the bottom frame, and the control frame comprises a rotating frame, a control plate and a balance weight plate; the control panel is connected to the two sides of the rotating frame in a rotating mode and installed in the bottom frame, the balance weight plate is installed on the rotating frame, the control panel slides to adjust the gap between the conveying rollers and the forming rollers, the conveying rollers rotate to drive a steel plate to enter the position between the conveying rollers and the forming rollers, and the balance weight plate increases the pressure applied to the steel plate by the conveying rollers below. The steel plate is primarily extruded and formed, and the problems that an existing steel plate rolling forming machine mostly directly extrudes the steel plate, large deformation stress is generated in the forming process of the steel plate, the forming precision of the steel plate is affected, and the surface of the steel plate is prone to being scratched, broken and sunken due to direct high-strength extrusion are solved.

Description

Technical Field

[0001] The present invention relates to the technical field related to steel plate manufacturing, and particularly to a steel plate roll forming machine. Background Art

[0002] Steel corrugated plates are plates with a wavy surface and are widely used in fields such as construction, industry, and transportation. Due to their corrugated shape, corrugated plates have the advantages of high structural strength, light weight, good waterproof performance, strong wind pressure resistance, and corrosion resistance.

[0003] Most of the existing steel corrugated plates are processed from steel plates through cold rolling or hot rolling. In the process of manufacturing corrugated plates, the roll forming machine is one of the key equipment. This equipment usually consists of multiple roller wheels to achieve the gradual forming of steel plates. The basic structure of the roll forming machine includes a conveying roller and a pressing roller. The conveying roller is responsible for guiding the steel plate to the forming area to ensure the stability and accuracy of the steel plate during the forming process. The outer wall of the pressing roller matches the conveying roller, and the pressing roller applies a downward pressure on the steel plate to press the steel plate into the required corrugated shape.

[0004] Most of the existing steel plate roll forming machines directly extrude the steel plate, resulting in large deformation stresses during the steel plate forming process, thus affecting the forming accuracy of the steel plate. Moreover, direct high-strength extrusion easily causes defects such as scratches, fractures, and depressions on the surface of the steel plate. To solve the above problems, a steel plate roll forming machine is provided. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: A steel plate roll forming machine, including a bottom frame;

[0006] A pressing roller, which includes a plurality of conveying rollers, forming rollers, and shaping rollers. The conveying rollers, forming rollers, and shaping rollers are all rotatably installed inside the bottom frame, and the conveying rollers are located below the forming rollers and shaping rollers;

[0007] A control frame, located at the feeding end of the bottom frame. The control frame includes a rotating frame, a control plate, and a counterweight plate. A plurality of forming rollers are arranged in a line and rotatably connected inside the rotating frame. Two control plates are respectively rotatably connected to one ends on both sides of the rotating frame. The control plates are slidably installed up and down in the inner wall of the bottom frame, and the control plates are close to the feeding end of the bottom frame. The counterweight plate is installed at one end of the rotating frame above and away from the control plate;

[0008] Slide the control plate to adjust the gap between the conveying roller and the forming roller at the feeding end of the bottom frame. The rotation of the conveying roller drives the steel plate into the space between the conveying roller and the forming roller. The counterweight plate increases the pressure exerted by the lower conveying roller on the steel plate to initially extrude and form the steel plate.

[0009] In a further embodiment, a hydraulic cylinder for driving the control board to slide up and down is installed at the upper end of the bottom frame, and the output rod of the hydraulic cylinder penetrates through the bottom frame and is fixedly connected to the upper end of the control board.

[0010] In a further embodiment, limit plates are fixedly connected to the ends of both sides of the rotating frame far away from the control board, and limit grooves matching the limit plates are formed on the inner side wall of the bottom frame.

[0011] In a further embodiment, a mounting groove matching the counterweight plate is formed at the upper end of the rotating frame, and the counterweight plate is clamped in the mounting groove.

[0012] In a further embodiment, a plurality of guide wheels for guiding the installation of the counterweight plate are rotatably installed below the interior of the mounting groove, and the plurality of guide wheels are evenly arranged in a line.

[0013] In a further embodiment, lifting rings for hoisting are fixedly connected to both sides of the upper end of the counterweight plate.

[0014] In a further embodiment, a plurality of movable plates are slidably installed on the inner wall of the bottom frame up and down, and the movable plates on both sides are symmetrically arranged, and the shaping roller is rotatably connected between two opposite movable plates.

[0015] In a further embodiment, a screw rod for adjusting the movable plate is slidably inserted into the upper end of the bottom frame, and a nut is rotatably installed at the upper end of the bottom frame, and the nut is threadedly connected to the screw rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The present invention is a steel plate rolling forming machine. By sliding the control board to adjust the gap between the conveying roller and the forming roller at the feeding end of the bottom frame, the conveying roller rotates to drive the steel plate into the space between the conveying roller and the forming roller, and the counterweight plate increases the pressure exerted on the steel plate by the lower conveying roller, initially extruding the steel plate into shape, solving the problems that most existing steel plate rolling forming machines directly extrude the steel plate, resulting in large deformation stress during the steel plate forming process, thus affecting the forming accuracy of the steel plate, and the direct high-strength extrusion easily causes scratches, fractures, and depressions on the surface of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the rolling forming machine according to an embodiment of the present invention;

[0019] Figure 2 is a partial cross-sectional view of the rolling forming machine according to an embodiment of the present invention;

[0020] Figure 3 is a front view of the rolling forming machine according to an embodiment of the present invention;

[0021] Figure 4 is a partial cross-sectional view of the bottom frame according to an embodiment of the present invention;

[0022] Figure 5 Schematic diagram of the overall structure of the control box according to an embodiment of the present invention;

[0023] Figure 6 Exploded view of the control box according to an embodiment of the present invention.

[0024] In the figure: 1, bottom frame; 2, pressing roller; 21, conveying roller; 22, forming roller; 23, shaping roller; 4, control box; 41, rotating frame; 411, limiting plate; 412, guide wheel; 42, control board; 421, hydraulic cylinder; 43, counterweight plate; 431, lifting ring; 5, movable plate; 51, screw. Specific embodiments

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1-6 , this embodiment provides a steel plate rolling forming machine, including a bottom frame 1. The bottom frame 1 refers to a corrugated plate cold rolling forming machine of model GY230, and a plurality of pressing rollers 2 are rotatably installed inside the bottom frame 1. Different from the existing forming machines, the pressing roller 2 includes a conveying roller 21, a forming roller 22, and a shaping roller 23. Among them, the conveying roller 21, the forming roller 22, and the shaping roller 23 are all provided in multiple numbers, and the sum of the numbers of the forming roller 22 and the shaping roller 23 is the same as the number of the conveying rollers 21. As Figure 2 shown, a plurality of conveying rollers 21 arranged uniformly in a line are rotatably installed in the bottom frame 1, and the conveying rollers 21 can be rotated in the bottom frame 1 by being driven by a motor.

[0027] As Figure 2 shown, both the forming roller 22 and the shaping roller 23 are located above the conveying roller 21, and a plurality of shaping rollers 23 arranged uniformly in a line are vertically aligned with the conveying roller 21 away from the feeding end of the bottom frame 1. As Figure 4As shown in the figure, a plurality of sliding cavities are provided on the inner side wall of the bottom frame 1, and the sliding cavities on both sides in the bottom frame 1 are symmetrically arranged. An active plate 5 is slidably mounted up and down in the sliding cavity. The shaping roller 23 is rotatably connected between two symmetrical active plates 5. The upper end of the active plate 5 is fixedly connected with a screw rod 51. The screw rod 51 penetrates through the upper end of the bottom frame 1, and the end of the screw rod 51 extending out of the bottom frame 1 is threadedly connected with a nut. By rotating the nut, the active plate 5 can be driven to slide in the active cavity through the screw rod 51. When the active plate 5 moves, the distance between the shaping roller 23 and the conveying roller 21 can be adjusted. Through this simple and effective screw adjustment mechanism, the operator can accurately control the up and down movement of the shaping roller 23, ensuring that the gap between the shaping roller 23 and the conveying roller 21 can be finely adjusted according to different steel plate thicknesses, materials and forming requirements, so as to achieve the best forming effect. Similarly, the symmetrical arrangement of the sliding cavities ensures the uniformity of the whole adjustment process, avoids errors caused by single-side adjustment, ensures the stability of the whole forming process, ensures uniform force on the steel plate during the forming process, and achieves an ideal forming effect. Before pressing the steel plate, it is necessary to ensure that the distances between the plurality of conveying rollers 21 and the shaping roller 23 are equal, so that the steel plate can be uniformly stressed when passing through each shaping roller 23, avoiding the situation of uneven local forming or inconsistent corrugations that may occur in traditional forming machines, and further improving the forming accuracy and product quality.

[0028] After the steel plate is placed above the conveying roller 21, the rotation of the conveying roller 21 can drive the steel plate to move. In this process, the conveying roller 21 plays the role of conveying and stabilizing the steel plate. Through the rotation of the roller, the steel plate advances along a predetermined track. When the steel plate moves and contacts the shaping roller 23, it enters the key stage of forming. The cooperation between the shaping roller 23 and the conveying roller 21 generates an accurate pressing force on the steel plate through continuous pressure and friction, so that the steel plate is gradually pressed into a corrugated shape. In this process, the role of the shaping roller 23 is particularly crucial. It can further refine the corrugation shape when the steel plate passes through, ensuring the accuracy of the height, wave pitch and overall shape of each corrugation. Through repeated pressure application and fine adjustment, the corrugation shape on the surface of the steel plate is stabilized, and finally cold rolling forming is completed. This technology is the existing cold rolling process.

[0029] The existing cold rolling process of steel plates directly rolls the steel plates into shape. Although this traditional process can effectively complete the corrugation of steel plates, it also has some significant defects in practical applications. First, when steel plates with strong rigidity are directly rolled, they are prone to obvious surface defects such as scratches, fractures, and depressions. These defects not only affect the appearance quality of the corrugated plate, but also may reduce its performance in subsequent use, especially in industries with high requirements for appearance, which will increase production costs and processing time. At the same time, since the steel plate is directly subjected to a large pressure during the rolling process, the surface stress distribution is uneven, which can easily lead to irregular deformation of the steel plate. Due to the action of the forming roller 22, the pressure and stress that the steel plate bears when passing through are not completely uniform, which may cause the corrugated shape of the steel plate to be inconsistent, and even affect the accuracy, causing the appearance of the corrugated plate to not meet the design requirements. Under some more stringent product specifications, this irregular deformation may cause serious deviations in the corrugated shape, resulting in product scrapping or the need for secondary processing, which increases the complexity and cost of the production process. Therefore, how to ensure uniform pressure and reduce surface defects during the rolling process of steel plates has become a problem that needs to be solved in the current steel plate cold rolling process. Secondly, the direct cold rolling forming method in the prior art places a heavy load on the equipment, especially during the rolling process, when the thickness and strength of the steel plates vary greatly, a large pressure needs to be applied to press them into shape. Under this high-pressure working state, the mechanical load of the equipment is very heavy. Long-term operation will cause increased wear of the rolling equipment, increase the frequency and cost of equipment maintenance, and may even cause equipment failure or increased failure frequency, which may affect the normal operation of the entire production line in severe cases. Therefore, the service life of the equipment is often limited, especially in high-intensity working environments, where higher reliability and stability requirements are required for the equipment, which brings additional economic burdens to the company. In order to solve these problems, improve the production efficiency and product quality of the steel plate cold rolling process, and extend the service life of the equipment, this embodiment proposes an improved solution. On the basis of the traditional cold rolling process, a control frame 4 is installed inside the bottom frame 1.

[0030] Specifically, the control frame 4 includes a rotating frame 41, a control board 42 and a counterweight plate 43, wherein two side walls of the inner side of the bottom frame 1 are provided with slide grooves, the two slide grooves are symmetrically arranged, and the control board 42 is installed in the slide grooves for vertical sliding. Figure 2As shown, one end of the rotating frame 41 close to the feeding end of the bottom frame 1 is rotatably connected between two control plates 42, and a plurality of forming rollers 22 arranged evenly in a line are rotatably installed in the rotating frame 41. A hydraulic cylinder 421 is fixedly installed at the upper end of the bottom frame 1. The reference model of the hydraulic cylinder 421 is the MOB series hydraulic cylinder. The output rod of the hydraulic cylinder 421 penetrates through the bottom frame 1 and is fixedly connected to the upper end of the control plate 42. By means of the hydraulic cylinder 421, the control plate 42 can be driven to slide up and down in the chute. An installation groove is formed at one end of the rotating frame 41 above and away from the control plate 42. A counterweight plate 43 is engaged in the installation groove. The counterweight plate 43 is made of metal sheet and the required weight can be selected according to needs. One end of the rotating frame 41 away from the control plate 42 rotates downward due to its own gravity, so that the forming roller 22 at the end of the rotating frame 41 away from the control plate 42 contacts the lower conveying roller 21.

[0031] As Figure 2 shown, the forming roller 22 and the sizing roller 23 have the same specifications. During use, the height of one side of the control frame 4 is lifted by the hydraulic cylinder 421 so that one side of the steel plate can be placed between the conveying roller 21 and the forming roller 22 close to the feeding end of the bottom frame 1. Then the hydraulic cylinder 421 is started again to enable the conveying roller 21 and the forming roller 22 to extrude the steel plate, and the extrusion force can be gradually increased. It can be stopped after the forming roller 22 contacts the steel plate or the steel plate produces slight deformation. At this time, one end of the steel plate is clamped by the conveying roller 21 and the forming roller 22, and then the conveying roller 21 is started, and the conveying roller 21 can drive the steel plate to be conveyed into the bottom frame 1. The control frame 4 is inclined in the bottom frame 1, and the weight of the counterweight plate 43 is applied to the steel plate through a plurality of forming rollers 22. The pressure received by the steel plate is the greatest when it moves below the counterweight plate 43, and the steel plate can be initially extruded into shape. Finally, the preliminarily extruded steel plate can be conveyed by the conveying roller 21 to below the sizing roller 23 and is sized by the uniform pressure applied by a plurality of sizing rollers 23.

[0032] However, it is found in the actual operation process that when the roll forming machine is idle, the forming roller 22 at the end of the rotating frame 41 far from the control board 42 will apply pressure to a conveying roller 21 for a long time. The conveying roller 21 will bear long-term pressure, which will increase the load of the conveying roller 21 and its bearing part, resulting in early wear and damage of the bearing. Especially when the bearing is damaged, it will cause the conveying roller 21 to rotate inflexibly, increase the frictional resistance, and even may occur jamming phenomenon, affecting the smooth operation of the equipment. In addition, the damage of the bearing may also cause the inclination or uneven rotation of the roller body of the conveying roller 21, affecting the forming quality of the corrugated board. Therefore, in order to prevent the forming roller 22 from applying long-term pressure to the conveying roller 21 when the device is idle, limiting plates 411 are fixedly connected to both ends of the rotating frame 41 far from the control board 42. A limiting groove is opened on the inner side wall of the bottom frame 1. When the rotating frame 41 moves, the limiting plate 411 moves in the limiting groove. When the device is idle, the end of the rotating frame 41 far from the control board 42 tilts downward, and the limiting plate 411 contacts the bottom edge of the limiting groove. At this time, the weights of the rotating frame 41, the forming roller 22 and the counterweight plate 43 are applied to the limiting plate 411, and the rotating frame 41 is supported by the limiting plate 411, so that there is a gap between the forming roller 22 and the sizing roller 23, and the gap distance is less than the thickness of the steel plate. At the same time, the sizing roller 23 is prevented from being pressed.

[0033] The counterweight plate 43 made of metal is heavy. In order to facilitate the movement of the counterweight plate 43, as Figure 5 shown, lifting rings 431 are fixedly connected to both sides of the upper end of the counterweight plate 43. The design of the lifting rings 431 enables the counterweight plate 43 to be connected to the lifting hook of a crane or a trolley through the lifting rings 431, so as to facilitate lifting and moving it. As heavy mechanical equipment, a crane or a trolley can provide sufficient lifting capacity, enabling the operator to easily transfer the counterweight plate 43 from one position to another. This lifting method not only ensures the safe movement of the counterweight plate 43, but also effectively reduces the risks that may occur during manual handling. Especially when the counterweight plate 43 is heavy and large in size, using a crane or a trolley can significantly improve the handling efficiency.

[0034] In order to further ensure the stability and accuracy of the counterweight plate 43, a plurality of guide wheels 412 are arranged in the installation groove of the rotating frame 41. These guide wheels 412 enable the counterweight plate 43 to move more smoothly and be accurately positioned in the installation groove. The position adjustment of the counterweight plate 43 in the installation groove is very flexible. When one end of the counterweight plate 43 is placed in the installation groove, one side of the counterweight plate 43 will contact the guide wheels 412. Through the sliding function of the guide wheels 412, the counterweight plate 43 can smoothly slide along the installation groove, so as to easily adjust its specific position in the installation groove and ensure that it can be accurately engaged in the rotating frame 41.

[0035] In addition, the uniform arrangement of multiple guide wheels 412 disperses the pressure exerted by the counterweight plate 43, thus avoiding excessive pressure on a single position. Through the cooperation of the guide wheels 412, the counterweight plate 43 can evenly distribute the applied pressure to one end of the rotating frame 41, ensuring uniform pressure on the rotating frame 41. This design of uniform pressure application is very important because it can ensure that the force received by the rotating frame 41 during operation is stable and can prevent the equipment from deforming or operating unevenly due to excessive local pressure. With this structure, the counterweight plate 43 can not only precisely control the applied pressure but also maintain stability throughout the forming process, improving the reliability and safety of the overall operation.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel plate roll forming machine, characterized in that: include: Bottom frame (1); A pressing roller (2), the pressing roller (2) comprising a plurality of conveying rollers (21), a forming roller (22) and a shaping roller (23), the conveying rollers (21), the forming rollers (22) and the shaping rollers (23) being rotatably mounted inside the bottom frame (1), and the conveying rollers (21) being located below the forming rollers (22) and the shaping rollers (23); A control frame (4) is located at the feeding end of the bottom frame (1), the control frame (4) comprises a rotating frame (41), a control panel (42) and a counterweight plate (43), a plurality of the forming rollers (22) are arranged in a line and are rotatably connected inside the rotating frame (41), two control panels (42) are rotatably connected to one end on both sides of the rotating frame (41), the control panel (42) is slidably installed in the inner wall of the bottom frame (1) up and down, and the control panel (42) is close to the feeding end of the bottom frame (1), and the counterweight plate (43) is installed above the rotating frame (41) at one end away from the control panel (42); The sliding control plate (42) adjusts the gap between the conveying roller (21) and the forming roller (22) at the feeding end of the bottom frame (1), and the conveying roller (21) rotates to drive the steel plate into between the conveying roller (21) and the forming roller (22), and the counterweight plate (43) increases the pressure applied by the lower conveying roller (21) to the steel plate, thereby preliminarily extruding and forming the steel plate.

2. A steel plate roll forming machine according to claim 1, characterized in that: A hydraulic cylinder (421) for driving the control panel (42) to slide up and down is installed at the upper end of the bottom frame (1); an output rod of the hydraulic cylinder (421) passes through the bottom frame (1) and is fixedly connected to the upper end of the control panel (42).

3. A steel plate roll forming machine according to claim 2, characterized in that: One end of both sides of the rotating frame (41) away from the control plate (42) is fixedly connected to a limiting plate (411), and the inner side wall of the bottom frame (1) is provided with a limiting groove matching the limiting plate (411).

4. A steel plate roll forming machine according to claim 3, characterized in that: The upper end of the rotating frame (41) is provided with a mounting groove matching the counterweight plate (43), and the counterweight plate (43) is engaged in the mounting groove.

5. A steel plate roll forming machine according to claim 4, characterized in that: A plurality of guide wheels (412) for guiding the installation of the counterweight plate (43) are rotatably installed at the lower part of the installation groove, and the plurality of guide wheels (412) are evenly arranged in a line.

6. A steel plate roll forming machine according to claim 5, characterized in that: Both sides of the upper end of the counterweight plate (43) are fixedly connected with lifting rings (431) for lifting.

7. The steel plate roll forming machine according to claim 1, characterized in that: The inner wall of the bottom frame (1) is slidably mounted with a plurality of movable plates (5) up and down, and the movable plates (5) on both sides are symmetrically arranged, and the shaping roller (23) is rotatably connected between two opposite movable plates (5).

8. The steel plate roll forming machine according to claim 7, characterized in that: A screw rod (51) for adjusting the movable plate (5) is slidably inserted at the upper end of the bottom frame (1), and a nut is rotatably mounted at the upper end of the bottom frame (1), and the nut is threadably connected to the screw rod (51).

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