Four-roller diagonal plate rolling machine

Abstract

The utility model discloses a four-roller oblique line plate rolling machine which comprises a main body rack, a rolling machine frame, a rolling machine frame and a rolling machine frame. The upper pressing roller is rotatably arranged between the front supporting plate and the rear supporting plate; the lower pressing roller is arranged under the upper pressing roller and is connected with the front supporting plate and the rear supporting plate through an up-down displacement adjusting mechanism; the left pressing roller and the right pressing roller are symmetrically arranged on the left side and the right side of the lower pressing roller and are connected with the front supporting plate and the rear supporting plate through a left oblique displacement adjusting mechanism and a right oblique displacement adjusting mechanism; the rotation driving device provides rotation power, and the transmission mechanism transmits the rotation power to the upper pressing roller and the lower pressing roller respectively; according to the utility model, the high-precision control on the bending curvature of the plate is realized, the synchronism of the vertical displacement of the lower compression roller is fundamentally ensured, the processing range and adaptability are wide, the device can adapt to plates with different thicknesses and materials, and the diversified processing requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of plate rolling machines, and particularly relates to a four-roll diagonal plate rolling machine. Background Technique

[0002] In the field of metal sheet processing, plate rolling machines, as an important processing equipment, are widely used in multiple industries such as shipbuilding, petrochemical industry, bridge construction, and machinery manufacturing. Traditional plate rolling machines mostly adopt a three-roll structure. Although they can meet the basic plate rolling requirements, when processing high-precision and complex-shaped plates, there are often problems such as low forming accuracy, poor adaptability, and many vulnerable parts.

[0003] In recent years, with the acceleration of the industrialization process and the continuous improvement of the demand for metal sheet processing, higher requirements have been put forward for the performance of plate rolling machines. Especially for those occasions that require high-precision bending forming, a wide processing range and adaptability, and efficient and stable operation, traditional three-roll plate rolling machines are difficult to meet the requirements.

[0004] Under this background, four-roll plate rolling machines have emerged. However, there are still many deficiencies in the existing four-roll plate rolling machines in aspects such as adjusting the bending curvature of the plate, controlling the bending process, and realizing the synchronization of the up and down displacement. For example, some four-roll plate rolling machines lack independence when adjusting the left and right pressure rollers, and it is difficult to achieve high-precision control of the bending curvature of the plate; at the same time, during the up and down displacement adjustment process, due to the use of multiple independent jacking devices, there are often problems of non-synchronization, which affect the processing accuracy and stability. Summary of the Invention

[0005] The purpose of the utility model is to provide a four-roll diagonal plate rolling machine aiming at the problems existing in the prior art, which realizes high-precision control of the bending curvature of the plate; at the same time, fundamentally ensures the synchronization of the up and down displacement of the lower pressure roller; in addition, this equipment also has a wide processing range and adaptability, can adapt to plates of different thicknesses and materials, and meets diversified processing requirements.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A four-roll diagonal plate rolling machine, comprising: a main body frame provided with a front support plate and a rear support plate for providing structural support for each pressure roller; an upper pressure roller rotatably arranged between the front support plate and the rear support plate; a lower pressure roller arranged directly below the upper pressure roller and connected to the front support plate and the rear support plate through an up-and-down displacement adjusting mechanism, the up-and-down displacement adjusting mechanism being used to adjust the up-and-down displacement of the lower pressure roller so as to cooperate with the upper pressure roller to clamp a plate; a left pressure roller and a right pressure roller symmetrically arranged on the left and right sides of the lower pressure roller, the left pressure roller being connected to the front support plate and the rear support plate through a left diagonal displacement adjusting mechanism, the right pressure roller being connected to the front support plate and the rear support plate through a right diagonal displacement adjusting mechanism, the left diagonal displacement adjusting mechanism and the right diagonal displacement adjusting mechanism being respectively used to independently adjust the diagonal displacement of the left pressure roller and the right pressure roller towards the plate clamping position so as to adjust the bending curvature of the plate; a rotation driving device and a transmission mechanism, the rotation driving device providing rotation power, and the transmission mechanism transmitting the rotation power to the upper pressure roller and the lower pressure roller respectively.

[0008] The up-and-down displacement adjusting mechanism includes: a front end plate and a rear end plate respectively arranged on the front support plate and the rear support plate so as to be displaceable up and down, and rotatably supporting both ends of the lower pressure roller; a front push block and a rear push block respectively arranged on the front support plate and the rear support plate so as to be displaceable back and forth, the upper end surfaces of the front push block and the rear push block being the same inclined surfaces for respectively supporting the lower ends of the front end plate and the rear end plate; a synchronous rod with both ends fixedly connected to the front push block and the rear push block respectively; a linear driving device for driving the front push block to linearly displace back and forth so as to realize the up-and-down displacement of the lower pressure roller.

[0009] Both the front support plate and the rear support plate are provided with left installation inclined grooves inclined towards the plate clamping position, and the left diagonal displacement adjusting mechanism includes: two left sliders respectively sliding in the front and rear left installation inclined grooves and rotatably supporting both ends of the left pressure roller; two left driving oil cylinders respectively fixed in the front and rear left installation inclined grooves and having their extending ends connected to the corresponding left sliders.

[0010] Both the front support plate and the rear support plate are provided with right installation inclined grooves inclined towards the plate clamping position, and the right diagonal displacement adjusting mechanism includes: two right sliders respectively sliding in the front and rear right installation inclined grooves and rotatably supporting both ends of the right pressure roller; two right driving oil cylinders respectively fixed in the front and rear right installation inclined grooves and having their extending ends connected to the corresponding right sliders.

[0011] A guide wheel is rotatably connected to the upper end of the rear end plate and is used for limiting the side of the plate during the plate conveying process.

[0012] The rotation driving device includes a rotation driving motor, and the transmission mechanism includes: a first transmission shaft, one end of which is connected to the rotation driving motor and the other end of which is connected to the upper pressure roller through a straight coupling; a first gear fixedly connected to the first transmission shaft; a second gear rotatably connected to the main body frame and meshing with the first gear; a second transmission shaft, one end of which is connected to the end shaft of the second gear through a first universal coupling and the other end of which is connected to the lower pressure roller through a second universal coupling.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The left pressure roller and the right pressure roller are independently adjusted obliquely. By adopting the method of bending step by step in batches, during each conveying process, the bending degree of the sheet is gradually increased, so that the bending process can be better controlled, and high-precision bending forming is realized;

[0015] By adopting the method of bending step by step in batches, the damage to the sheet or the plate rolling machine caused by excessive pressure during one-time bending forming is avoided, the stability of the forming effect is ensured, and the service life of the plate rolling machine is prolonged;

[0016] By adjusting the clamping force and the extension amount of the lower pressure roller, the plate rolling machine can adapt to sheets of different thicknesses and materials. By adjusting the extension amounts of the left pressure roller and the right pressure roller, the requirements of different bending curvatures can be realized, and it has a wide processing range and adaptability;

[0017] The up-and-down displacement adjusting mechanism fundamentally ensures the synchronism of the up-and-down displacement, and avoids the problems caused by the non-synchronism of two independent jacking devices; only one linear driving device is used to control the whole up-and-down displacement process, which improves the consistency of the control signal and further enhances the synchronism; the up-and-down displacement adjustment of the lower pressure roller is realized only through a set of mechanical structure. Compared with the design using two jacking devices, the number of components is greatly reduced, which not only reduces the manufacturing cost, but also simplifies the maintenance process and reduces the later maintenance cost. Description of the Drawings

[0018] Figure 1 It is the overall structure diagram of the plate rolling machine in an embodiment of the present application;

[0019] Figure 2 It is the partial structure diagram of the plate rolling machine in an embodiment of the present application, in which the left pressure roller and the right pressure roller are hidden;

[0020] Figure 3 It is the structure diagram of the up-and-down displacement adjusting mechanism in an embodiment of the present application;

[0021] Figure 4 It is the structure diagram of the rotation driving device and the transmission mechanism in an embodiment of the present application;

[0022] In the figure: 1. Main body frame; 101. Front support plate; 102. Rear support plate; 2. Upper pressure roller; 3. Lower pressure roller; 4. Left pressure roller; 5. Right pressure roller; 6. Front end plate; 7. Rear end plate; 8. Front push block; 9. Rear push block; 10. Synchronous rod; 11. Linear drive device; 12. Left slider; 13. Left drive oil cylinder; 14. Guide wheel; 15. Rotary drive motor; 16. First transmission shaft; 17. First gear; 18. Second gear; 19. Second transmission shaft. Detailed implementation manner

[0023] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work conditions belong to the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0025] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0026] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside 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 specific situations.

[0027] Such as Figures 1 to 4As shown in the figure, a four-roll diagonal plate rolling machine includes: a main body frame 1, provided with a front support plate 101 and a rear support plate 102, which are used to provide structural support for each pressing roller; an upper pressing roller 2, rotatably arranged between the front support plate 101 and the rear support plate 102; a lower pressing roller 3, arranged directly below the upper pressing roller 2, and connected to the front support plate 101 and the rear support plate 102 through an up-and-down displacement adjusting mechanism. The up-and-down displacement adjusting mechanism is used to adjust the up-and-down displacement of the lower pressing roller 3 so that it cooperates with the upper pressing roller 2 to clamp the plate; a left pressing roller 4 and a right pressing roller 5, symmetrically arranged on the left and right sides of the lower pressing roller 3. The left pressing roller 4 is connected to the front support plate 101 and the rear support plate 102 through a left diagonal displacement adjusting mechanism, and the right pressing roller 5 is connected to the front support plate 101 and the rear support plate 102 through a right diagonal displacement adjusting mechanism. The left diagonal displacement adjusting mechanism and the right diagonal displacement adjusting mechanism are respectively used to independently adjust the diagonal displacement of the left pressing roller 4 and the right pressing roller 5 towards the plate clamping position to adjust the bending curvature of the plate; a rotary driving device and a transmission mechanism. The rotary driving device provides rotary power, and the transmission mechanism transmits the rotary power to the upper pressing roller 2 and the lower pressing roller 3 respectively.

[0028] The four-roll diagonal plate rolling machine realizes the bending and forming of the plate through the coordinated action of four pressing rollers. Specifically, the plate first passes through between the upper pressing roller 2 and the lower pressing roller 3. The upper pressing roller 2 and the lower pressing roller 3 serve as power transmission rollers, and the lower pressing roller 3 provides an upward clamping force to clamp the plate. The left pressing roller 4 and the right pressing roller 5 are respectively inclinedly arranged on the left and right sides of the lower pressing roller 3, and can be independently adjusted in displacement through their respective diagonal displacement adjusting mechanisms, so as to independently adjust the bending curvature of the plate.

[0029] During the working process, the rotation direction of the upper pressing roller 2 will change, so that the conveying direction of the plate also changes accordingly. When the plate is conveyed from left to right, the left pressing roller 4 does not extend, while the right pressing roller 5 extends, and the bending degree of the plate is adjusted according to its extension amount. When the plate is conveyed to the end, the upper pressing roller 2 rotates in reverse, and the plate starts to be conveyed from right to left. At this time, the left pressing roller 4 extends, and the extension amount is slightly higher than that of the right pressing roller 5, and the plate is further bent. In this way, each time the plate is conveyed, its bending degree will increase once until it is finally bent and formed to the predetermined bending curvature.

[0030] Through the independent inclination adjustment of the left pressing roller 4 and the right pressing roller 5, the bending curvature of the plate can be accurately controlled, and high-precision bending and forming can be achieved.

[0031] By adjusting the clamping force and extension amount of the lower pressing roller 3, the plate rolling machine can adapt to plates of different thicknesses and materials. By adjusting the extension amounts of the left pressing roller 4 and the right pressing roller 5, the requirements of different bending curvatures can be achieved.

[0032] Adopt the method of gradual bending in stages. During each conveying process, the bending degree of the sheet is gradually increased, which can better control the bending process, avoid damage to the sheet or the plate rolling machine caused by excessive pressure during one-time bending forming, ensure the stability of the forming effect, and extend the service life of the plate rolling machine.

[0033] In some embodiments, the up-and-down displacement adjusting mechanism includes: a front end plate 6 and a rear end plate 7, which are respectively arranged on the front support plate 101 and the rear support plate 102 so as to be displaceable up and down, and rotatably support both ends of the lower pressing roller 3; a front pushing block 8 and a rear pushing block 9, which are respectively arranged on the front support plate 101 and the rear support plate 102 so as to be displaceable back and forth, and the upper end surfaces of the front pushing block 8 and the rear pushing block 9 are both the same inclined surfaces, which are used to support the lower ends of the front end plate 6 and the rear end plate 7 respectively; a synchronous rod 10, both ends of which are fixedly connected to the front pushing block 8 and the rear pushing block 9 respectively; a linear driving device 11, which is used to drive the front pushing block 8 to linearly displace back and forth so as to realize the up-and-down displacement of the lower pressing roller 3.

[0034] Specifically, the front support plate 101 and the rear support plate 102 are respectively provided with limit grooves, the front end plate 6 and the rear end plate 7 are arranged in the corresponding limit grooves so as to be displaceable up and down, and the front pushing block 8 and the rear pushing block 9 are respectively arranged on the lower sides of the front end plate 6 and the rear end plate 7; when the linear driving device 11 drives the front pushing block 8 to linearly displace back and forth, due to the action of the inclined surface, the front pushing block 8 will push the front end plate 6 to move up and down, and at the same time the synchronous rod 10 transmits this displacement to the rear pushing block 9, so that the rear end plate 7 also moves up and down correspondingly, and thus the up-and-down displacement of the lower pressing roller 3 is realized; the up-and-down displacement adjustment of the lower pressing roller 3 enables the sheet to obtain a stable clamping force during the bending process, ensuring the stability of the forming effect.

[0035] Preferably, the linear driving device 11 is an oil cylinder, which can provide a stable clamping force and is convenient to control.

[0036] The up-and-down displacement adjusting mechanism in this embodiment fundamentally ensures the synchronism of the up-and-down displacement and avoids problems caused by the non-synchronism of two independent jacking devices. Only one linear driving device 11 is used to control the entire up-and-down displacement process, so the consistency of the control signals is also ensured, further improving the synchronism.

[0037] In addition, only one set of mechanical structure is used to realize the up-and-down displacement adjustment of the lower pressing roller 3. Compared with the design using two jacking devices, the number of components is greatly reduced, which not only reduces the manufacturing cost, but also simplifies the maintenance process and reduces the later maintenance cost.

[0038] In some embodiments, both the front support plate 101 and the rear support plate 102 are provided with left mounting inclined grooves that are inclined towards the plate clamping position. The left oblique displacement adjustment mechanism includes: two left sliders 12, which are respectively slidably arranged in the front and rear left mounting inclined grooves to rotatably support both ends of the left pressing roller 4; two left driving cylinders 13, which are respectively fixed in the front and rear left mounting inclined grooves, and their extending ends are connected to the corresponding left sliders 12.

[0039] Specifically, when the left driving cylinder 13 is activated, its extending end pushes the left slider 12 to slide in the left mounting inclined groove. Due to the inclined design of the inclined groove, the sliding of the left slider 12 will be converted into an oblique displacement in the horizontal direction. In this way, the left slider 12 can drive the left pressing roller 4 connected thereto to perform oblique displacement adjustment, thereby realizing the bending control of the left edge of the plate.

[0040] In some embodiments, both the front support plate 101 and the rear support plate 102 are provided with right mounting inclined grooves that are inclined towards the plate clamping position. The right oblique displacement adjustment mechanism includes: two right sliders, which are respectively slidably arranged in the front and rear right mounting inclined grooves to rotatably support both ends of the right pressing roller 5; two right driving cylinders, which are respectively fixed in the front and rear right mounting inclined grooves, and their extending ends are connected to the corresponding right sliders.

[0041] Specifically, the structure and working principle of the right oblique displacement adjustment mechanism are the same as those of the left oblique displacement adjustment mechanism. Through the left and right oblique displacement adjustment mechanisms, precise control of the bending of the left and right edges of the plate can be achieved, ensuring the accuracy and quality of the plate bending forming. The independent control of the left and right driving cylinders enables the bending adjustment of the left and right sides to be carried out separately and can be combined according to needs. This flexibility improves the adaptability and processing range of the equipment.

[0042] In some embodiments, a guide wheel 14 is rotatably connected to the upper end of the rear end plate 7 and is used to limit the side of the plate during the plate conveying process. The guide wheel 14 can contact the side of the plate during the plate conveying process, thereby playing a role in limiting, preventing the plate from laterally shifting during the conveying process, and ensuring that the plate can be stably conveyed along a predetermined path. The guide wheel 14 adopts a rotational connection method and can roll when contacting the side of the plate, thereby reducing friction and wear.

[0043] In some embodiments, the rotation drive device includes a rotation drive motor 15, and the transmission mechanism includes: a first transmission shaft 16, one end of which is connected to the rotation drive motor 15, and the other end is connected to the upper pressing roller 2 through a direct coupling; a first gear 17, fixedly connected to the first transmission shaft 16; a second gear 18, rotatably connected to the main body frame 1 and meshing with the first gear 17; a second transmission shaft 19, one end of which is connected to the end shaft of the second gear 18 through a first universal coupling, and the other end is connected to the lower pressing roller 3 through a second universal coupling.

[0044] Specifically, by using a universal coupling to connect the second transmission shaft 19 and the lower pressing roller 3, as well as the end shaft of the second gear 18, different positions of the lower pressing roller 3 are adapted, providing stable power transmission for the lower pressing roller 3 and ensuring that the upper pressing roller 2 and the lower pressing roller 3 can maintain a stable rotational speed during the processing.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-roller diagonal plate rolling machine, characterized in that: include: The main frame (1) is provided with a front support plate (101) and a rear support plate (102) for providing structural support for each pressing roller; An upper pressing roller (2) rotatably disposed between the front supporting plate (101) and the rear supporting plate (102); A lower pressing roller (3) is arranged directly below the upper pressing roller (2) and is connected to the front support plate (101) and the rear support plate (102) via an up-and-down displacement adjustment mechanism, wherein the up-and-down displacement adjustment mechanism is used to adjust the up-and-down displacement of the lower pressing roller (3) so that it cooperates with the upper pressing roller (2) to clamp the plate; The left pressure roller (4) and the right pressure roller (5) are symmetrically arranged on the left and right sides of the lower pressure roller (3); the left pressure roller (4) is connected to the front support plate (101) and the rear support plate (102) through a left oblique displacement adjustment mechanism, and the right pressure roller (5) is connected to the front support plate (101) and the rear support plate (102) through a right oblique displacement adjustment mechanism; the left oblique displacement adjustment mechanism and the right oblique displacement adjustment mechanism are respectively used to independently adjust the oblique displacement of the left pressure roller (4) and the right pressure roller (5) toward the plate clamping position to adjust the bending curvature of the plate; A rotary drive device and a transmission mechanism, wherein the rotary drive device provides rotary power, and the transmission mechanism transmits the rotary power to the upper pressure roller (2) and the lower pressure roller (3) respectively.

2. A four-roller diagonal plate rolling machine according to claim 1, characterized in that: The up and down displacement adjustment mechanism comprises: A front plate (6) and a rear plate (7) are respectively arranged on the front support plate (101) and the rear support plate (102) so as to be movable up and down, and rotatably support the two ends of the lower pressure roller (3); A front push block (8) and a rear push block (9) are respectively arranged on the front support plate (101) and the rear support plate (102) so as to be displaceable forward and backward, and the upper end surfaces of the front push block (8) and the rear push block (9) are both the same inclined surfaces, and are used to support the lower ends of the front end plate (6) and the rear end plate (7) respectively; A synchronization rod (10), both ends of which are fixedly connected to the front push block (8) and the rear push block (9) respectively; The linear drive device (11) is used to drive the forward push block (8) to move forward and backward linearly, so as to achieve the up and down displacement of the lower pressure roller (3).

3. The four-roller diagonal plate rolling machine according to claim 1, characterized in that: The front support plate (101) and the rear support plate (102) are both provided with a left installation inclined groove inclined toward the plate clamping position, and the left oblique displacement adjustment mechanism comprises: Two left sliding blocks (12) are respectively slidably disposed in the two front and rear left mounting inclined grooves to rotatably support the two ends of the left pressure roller (4); The two left driving oil cylinders (13) are respectively fixed in the two front and rear left installation inclined grooves, and their extended ends are connected to the corresponding left sliding blocks (12).

4. A four-roller diagonal plate rolling machine according to claim 1, characterized in that: The front support plate (101) and the rear support plate (102) are both provided with a right installation inclined groove inclined toward the plate clamping position, and the right oblique displacement adjustment mechanism comprises: Two right sliding blocks are respectively slidably arranged in the front and rear right mounting inclined grooves to rotatably support the two ends of the right pressing roller (5); The two right driving oil cylinders are respectively fixed in the two front and rear right mounting inclined grooves, and the extended ends thereof are connected with the corresponding right sliding blocks.

5. The four-roller diagonal plate rolling machine according to claim 2, characterized in that: The upper end of the rear end plate (7) is rotatably connected to a guide wheel (14) for limiting the side edge of the plate during conveyance.

6. A four-roller diagonal plate rolling machine according to claim 1, characterized in that: The rotary drive device comprises a rotary drive motor (15), and the transmission mechanism comprises: A first transmission shaft (16), one end of which is connected to the rotation drive motor (15), and the other end of which is connected to the upper pressure roller (2) via a direct coupling; A first gear (17) fixedly connected to the first transmission shaft (16); A second gear (18) is rotatably connected to the main frame (1) and meshes with the first gear (17); A second transmission shaft (19) has one end connected to the end shaft of the second gear (18) via a first universal coupling, and the other end connected to the lower pressure roller (3) via a second universal coupling.

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