Three-roller plate rolling machine with variable center distance
By integrating the adjustment mechanism in the three-roll rolling machine, flexible adjustment of the bending curvature and plate thickness of the plate is achieved, solving the problems of complex and difficult to ensure the adjustment of traditional rolling machines, and improving processing efficiency and accuracy.
Patent Information
- Application Number
- CN202421700147.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-17
AI Technical Summary
Traditional three-roller rolling machines have limitations in adjustment flexibility, processing accuracy and scope of application, especially when adapting to plates of different thicknesses and specifications, the adjustment is complex and the accuracy is difficult to ensure.
A variable center distance three-roll roll roll machine is designed. The adjustment operation is simplified by integrating the adjustment mechanism, and the vertical distance between the upper pressing roller and the lower pressing roller are realized accurately.
It improves the flexibility and adaptability of the plate rolling machine, simplifies adjustment operations, improves work efficiency, ensures high-precision board processing, and has a compact structure, small space, and is easy to install and move.
Smart Images
Figure CN222919390U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plate rolling machines, and particularly relates to a three-roll plate rolling machine with variable center distance. Background Art
[0002] In the sheet metal processing industry, as an important forging and pressing equipment, the three-roll plate rolling machine is widely used to bend sheets into various shapes, such as cylindrical, arc-shaped, etc. Traditional three-roll plate rolling machines usually include an upper pressure roller and two lower pressure rollers. The upper pressure roller applies pressure to the sheet placed on the two lower pressure rollers to cause it to bend and deform. However, with the continuous development of industrial technology, the requirements for sheet metal processing accuracy and efficiency are also getting higher and higher. Traditional three-roll plate rolling machines gradually show some limitations in terms of adjustment flexibility, processing accuracy, and application range.
[0003] In particular, when traditional three-roll plate rolling machines are adapted to sheets of different thicknesses and specifications, it is necessary to manually adjust the center distance between the two lower pressure rollers. At the same time, adjusting the bending curvature of the sheet needs to be completed by adjusting the downward pressure of the upper pressure roller. This adjustment method not only involves the adjustment of multiple components, the operation process is complex and cumbersome, but also the adjustment accuracy is difficult to guarantee, often resulting in errors in the size and shape of the processed sheet, and unable to meet the requirements of high-precision processing. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problems existing in the prior art, and provide a three-roll plate rolling machine with variable center distance. Through the integrated design of the adjustment mechanism, the adjustment operation is made simpler, the work efficiency is improved. At the same time, the plate rolling machine has higher flexibility and adaptability, a more compact structure, a smaller occupied space, and is convenient for installation and movement.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A three-roll plate rolling machine with variable center distance, comprising: a main body frame, providing support for the main structure; an upper pressure roller, rotatably arranged on one side of the main body frame; a left pressure roller and a right pressure roller, arranged below the upper pressure roller, and arranged in a triangular layout with the upper pressure roller; an adjustment mechanism, supporting and positioning the left pressure roller and the right pressure roller, and capable of adjusting the distance between the two, as well as the vertical distance between the two and the upper pressure roller; a rotary drive device and a transmission mechanism, the rotary drive device providing rotary power, and the transmission mechanism transmitting the rotary power to each pressure roller respectively.
[0007] The adjustment mechanism includes: a support table, slidably arranged on the main body frame up and down; a left roller support, slidably arranged on the support table left and right, and supporting and positioning the left pressure roller; a right roller support, slidably arranged on the support table left and right, and supporting and positioning the right pressure roller.
[0008] The left roller support includes a first end seat and a second end seat respectively rotatably connected to both ends of the left pressure roller; the right roller support includes a third end seat and a fourth end seat respectively rotatably connected to both ends of the right pressure roller; the first end seat and the third end seat are slidably connected to the support table through a first guide rail; the second end seat and the fourth end seat are slidably connected to the support table through a second guide rail.
[0009] The left roller support further includes a left rod body seat which is slidably arranged left and right on the support table. The left rod body seat connects the first end seat and the second end seat through a left synchronizing rod. The left rod body seat is provided with two pulleys, and the left rod body seat supports the lower side of the middle part of the left pressure roller through the two pulleys; the right roller support further includes a right rod body seat which is slidably arranged left and right on the support table. The right rod body seat connects the third end seat and the fourth end seat through a right synchronizing rod. The right rod body seat is provided with two pulleys, and the right rod body seat supports the lower side of the middle part of the right pressure roller through the two pulleys.
[0010] The adjusting mechanism further includes: two lifting drive oil cylinders arranged on the main body frame, respectively supporting the front and rear ends of the support table for driving the support table to lift up and down; two left roller drive oil cylinders arranged on the support table and respectively arranged on the left sides of the first end seat and the second end seat for driving the first end seat and the second end seat to move synchronously left and right; two right roller drive oil cylinders arranged on the support table and respectively arranged on the right sides of the third end seat and the fourth end seat for driving the third end seat and the fourth end seat to move synchronously left and right; the left roller drive oil cylinder and the right roller drive oil cylinder are symmetrically arranged left and right with respect to the upper pressure roller.
[0011] The rotary drive device includes an upper roller drive motor, a left roller drive motor and a right roller drive motor. The transmission mechanism includes an upper transmission shaft, a left transmission shaft and a right transmission shaft; one end of the upper transmission shaft is connected to the upper roller drive motor through a first universal coupling, and the other end is connected to the upper pressure roller through a second universal coupling; one end of the left transmission shaft is connected to the left roller drive motor through a third universal coupling, and the other end is connected to the left pressure roller through a fourth universal coupling; one end of the right transmission shaft is connected to the right roller drive motor through a fifth universal coupling, and the other end is connected to the right pressure roller through a sixth universal coupling.
[0012] The plate rolling machine includes a metering mechanism. The metering mechanism includes: a mounting bracket fixed to the support table; a movable bracket movably connected to the mounting bracket up and down and arranged below the left pressure roller and the right pressure roller; a metering wheel rotatably connected to the movable bracket for contacting the plate and rolling therewith; the metering wheel is connected to an encoder for measuring the conveying length of the plate.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] By adjusting the vertical distance between the upper pressing roller and the left and right pressing rollers, the adjusting mechanism can change the bending curvature of the plate to meet different processing requirements. At the same time, by adjusting the distance between the left and right pressing rollers, the plate rolling machine can also adapt to plates of different thicknesses, further expanding its application range.
[0015] The integrated design of the adjusting mechanism makes the adjustment operation simpler, improves work efficiency. At the same time, the plate rolling machine has higher flexibility and adaptability, a more compact structure, occupies less space, and is convenient for installation and movement. Description of the Drawings
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is the overall structure diagram of the plate rolling machine in an embodiment of the present application;
[0018] Figure 2 It is the structure diagram of the adjusting mechanism in an embodiment of the present application;
[0019] Figure 3 It is the structure diagram of the left roller support and the right roller support in an embodiment of the present application;
[0020] Figure 4 It is the structure diagram of the left roller support and the right roller support in an embodiment of the present application;
[0021] Figure 5 It is the structure diagram of the metering mechanism in an embodiment of the present application;
[0022] In the figure: 1, main body frame; 2, upper pressing roller; 3, left pressing roller; 4, right pressing roller; 5, support table; 6, first end seat; 7, second end seat; 8, third end seat; 9, fourth end seat; 10, left rod body seat; 11, left synchronous rod; 12, right rod body seat; 13, right synchronous rod; 14, lifting drive oil cylinder; 15, left roller drive oil cylinder; 16, right roller drive oil cylinder; 17, upper roller drive motor; 18, left roller drive motor; 19, right roller drive motor; 20, upper transmission shaft; 21, left transmission shaft; 22, right transmission shaft; 23, metering mechanism; 24, mounting bracket; 25, movable bracket; 26, metering wheel. Detailed Embodiments
[0023] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.
[0024] In the description of the present utility model, 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 this utility model is usually placed during use. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model. 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, the terms "horizontal", "vertical", etc. 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 utility model, it should also be noted that unless otherwise clearly specified and defined, 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 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 utility model can be understood according to specific situations.
[0027] As Figures 1 to 5 shown, a variable center distance three-roll plate bending machine includes: a main body frame 1, providing support for the main body structure; an upper pressure roll 2, rotatably arranged on one side of the main body frame 1; a left pressure roll 3 and a right pressure roll 4, arranged below the upper pressure roll 2 and arranged in a triangular pattern with the upper pressure roll 2; an adjusting mechanism, supporting and positioning the left pressure roll 3 and the right pressure roll 4, and capable of adjusting the distance between the two and the vertical distance between the two and the upper pressure roll 2; a rotary drive device and a transmission mechanism, the rotary drive device providing rotary power, and the transmission mechanism transmitting the rotary power to each pressure roll respectively.
[0028] Specifically, the upper pressing roller 2 is one of the main pressure - applying components. The left pressing roller 3 and the right pressing roller 4 are located below the upper pressing roller 2 and are arranged in a triangular pattern, enabling the sheet material to be subjected to uniform pressure during processing, thereby achieving precise bending processing.
[0029] The rotary drive device provides rotary power, and transmits the power to each pressing roller through the transmission mechanism to ensure their synchronous rotation. When the sheet material is placed between the upper pressing roller 2, the left pressing roller 3 and the right pressing roller 4, with the synchronous rotation of the pressing rollers, the sheet material is driven and transported, and at the same time, it undergoes bending deformation under the action of the pressing rollers.
[0030] The adjusting mechanism can change the bending curvature of the sheet material by adjusting the vertical distance between the upper pressing roller 2, the left pressing roller 3 and the right pressing roller 4 to meet different processing requirements; at the same time, by adjusting the distance between the left pressing roller 3 and the right pressing roller 4, the plate rolling machine can also adapt to sheet materials of different thicknesses, further expanding its application range.
[0031] In summary, the adjusting mechanism in this embodiment integrates two adjusting functions, with a high degree of integration, making the adjustment operation simpler, simplifying the operation process, improving work efficiency, and at the same time, making the plate rolling machine more flexible and adaptable.
[0032] The integrated design of the adjusting mechanism makes the structure of the plate rolling machine more compact, occupies less space, and is convenient for installation and movement.
[0033] In some embodiments, the adjusting mechanism includes: a support platform 5, which is slidably arranged on the main body frame 1; a left roller support, which is slidably arranged on the support platform 5 and supports and positions the left pressing roller 3; a right roller support, which is slidably arranged on the support platform 5 and supports and positions the right pressing roller 4. The adjusting mechanism realizes precise adjustment of the vertical distance between the upper pressing roller and the left and right pressing rollers and the distance between the left and right pressing rollers through the up - and - down sliding of the support platform 5 and the left - and - right sliding of the left roller support and the right roller support, ensuring that the plate rolling machine can adapt to the processing requirements of sheet materials of different thicknesses and specifications and achieve high - precision bending processing.
[0034] In some embodiments, the left roller support includes a first end seat 6 and a second end seat 7 that are respectively rotatably connected to both ends of the left pressing roller 3; the right roller support includes a third end seat 8 and a fourth end seat 9 that are respectively rotatably connected to both ends of the right pressing roller 4; the first end seat 6 and the third end seat 8 are slidably connected to the support platform 5 through a first guide rail; the second end seat 7 and the fourth end seat 9 are slidably connected to the support platform 5 through a second guide rail.
[0035] The first end seat 6 and the second end seat 7 are designed such that the left pressing roller 3 can freely rotate around its axis when subjected to the pressure of the plate, while maintaining the stability of contact with the plate. Similar to the left roller support, the third end seat 8 and the fourth end seat 9 are designed such that the right pressing roller 4 can freely rotate when subjected to the pressure of the plate. The design of the common guide rail simplifies the structure and improves the synchronization and stability of the left pressing roller 3 and the right pressing roller 4 during the adjustment process.
[0036] In some embodiments, the left roller support further includes a left rod body seat 10, which is slidably disposed on the support table 5 in the left-right direction. The left rod body seat 10 connects the first end seat 6 and the second end seat 7 through a left synchronizing rod 11. The left rod body seat 10 is provided with two pulleys, and the left rod body seat 10 supports the lower side of the middle part of the left pressing roller 3 through the two pulleys; the right roller support further includes a right rod body seat 12, which is slidably disposed on the support table 5 in the left-right direction. The right rod body seat 12 connects the third end seat 8 and the fourth end seat 9 through a right synchronizing rod 13. The right rod body seat 12 is provided with two pulleys, and the right rod body seat 12 supports the lower side of the middle part of the right pressing roller 4 through the two pulleys.
[0037] Specifically, the left rod body seat 10, as a part of the left roller support, is slidably disposed on the support table 5 in the left-right direction and is connected to the first end seat 6 and the second end seat 7 through the left synchronizing rod 11, so as to ensure that the first end seat 6 and the second end seat 7 can move synchronously during the adjustment process; the left rod body seat 10 is provided with two pulleys, which provide a stable supporting force for the middle part of the left pressing roller 3, so that the left pressing roller 3 can rotate smoothly when subjected to the pressure of the plate. The working principle of the right rod body seat 12 is similar to that of the left rod body seat 10, which provides a stable supporting force for the middle part of the right pressing roller 4, so that the right pressing roller 4 can rotate smoothly when subjected to the pressure of the plate.
[0038] In some embodiments, the adjusting mechanism further includes: two lifting drive cylinders 14, which are disposed on the main body frame 1 and respectively support the front and rear ends of the support table 5 for driving the support table 5 to perform vertical lifting displacement; two left roller drive cylinders 15, which are disposed on the support table 5 and are respectively disposed on the left sides of the first end seat 6 and the second end seat 7 for driving the first end seat 6 and the second end seat 7 to move synchronously in the left-right direction; two right roller drive cylinders 16, which are disposed on the support table 5 and are respectively disposed on the right sides of the third end seat 8 and the fourth end seat 9 for driving the third end seat 8 and the fourth end seat 9 to move synchronously in the left-right direction; the left roller drive cylinder 15 and the right roller drive cylinder 16 are symmetrically disposed with respect to the upper pressing roller 2 in the left-right direction.
[0039] Specifically, when it is necessary to adjust the vertical distance between the upper pressing roller 2 and the left pressing roller 3 and the right pressing roller 4, the two lifting drive cylinders 14 synchronously drive the support table 5 to perform vertical lifting displacement, accurately adjusting the gap between the upper pressing roller and the lower pressing roller to achieve the required optimal bending effect.
[0040] The left roll driving oil cylinder 15 is used to drive the first end seat 6 and the second end seat 7 to displace synchronously left and right, so as to adjust the position of the left pressing roll 3; the right roll driving oil cylinder 16 is used to drive the third end seat 8 and the fourth end seat 9 to displace synchronously left and right, so as to adjust the position of the right pressing roll 4. Through the synchronous control of the left roll driving oil cylinder 15 and the right roll driving oil cylinder 16, it is ensured that the left pressing roll 3 and the right pressing roll 4 can approach and move away synchronously, so as to accurately adjust the center distance between the left pressing roll 3 and the right pressing roll 4.
[0041] The left roll driving oil cylinder 15 and the right roll driving oil cylinder 16 are symmetrically arranged left and right, so that the left pressing roll 3 and the right pressing roll 4 maintain a symmetrical relationship with the upper pressing roll 2 during the adjustment process, ensuring a uniform pressure distribution on the plate during the bending process and improving the processing accuracy.
[0042] In some embodiments, the rotary driving device includes an upper roll driving motor 17, a left roll driving motor 18 and a right roll driving motor 19, and the transmission mechanism includes an upper transmission shaft 20, a left transmission shaft 21 and a right transmission shaft 22; one end of the upper transmission shaft 20 is connected to the upper roll driving motor 17 through a first universal coupling, and the other end is connected to the upper pressing roll 2 through a second universal coupling; one end of the left transmission shaft 21 is connected to the left roll driving motor 18 through a third universal coupling, and the other end is connected to the left pressing roll 3 through a fourth universal coupling; one end of the right transmission shaft 22 is connected to the right roll driving motor 19 through a fifth universal coupling, and the other end is connected to the right pressing roll 4 through a sixth universal coupling.
[0043] The upper pressing roll 2, the left pressing roll 3 and the right pressing roll 4 are respectively driven by independent rotary driving motors, and the rotation speed and direction of the upper pressing roll, the left pressing roll and the right pressing roll are independently controlled, making the maintenance and replacement of components simpler and faster.
[0044] The use of universal couplings enables the transmission shaft to deflect within a certain angle range, so as to adapt to the position adjustment of the left pressing roll 3 and the right pressing roll 4.
[0045] In some embodiments, the plate rolling machine includes a metering mechanism 23, and the metering mechanism 23 includes: a mounting bracket 24, fixed to the support table 5; a movable bracket 25, movably connected to the mounting bracket 24 and arranged below the left pressing roll 3 and the right pressing roll 4; a metering wheel 26, rotatably connected to the movable bracket 25 for contacting the plate and rolling therewith; the metering wheel 26 is connected to an encoder for measuring the conveying length of the plate.
[0046] Specifically, the installation bracket 24 provides support for the entire metering mechanism 23. The movable bracket 25 can be adjusted up and down according to the thickness of the plate when the plate passes through, so as to maintain contact with the plate. When the plate is conveyed in the rolling machine, the metering wheel 26 will rotate accordingly to record the moving distance of the plate. The metering wheel 26 is connected to an encoder to accurately measure the rotation angle and number of turns of the metering wheel 26, so as to calculate the conveying length of the plate in the rolling machine.
[0047] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A three-roller plate rolling machine with variable center distance, characterized in that: include: A main frame (1), providing main structural support; An upper pressing roller (2) is rotatably arranged on one side of the main frame (1); A left pressure roller (3) and a right pressure roller (4) are arranged below the upper pressure roller (2) and are arranged in a herringbone shape with the upper pressure roller (2); An adjustment mechanism, which supports and positions the left pressure roller (3) and the right pressure roller (4), and can adjust the distance between the two, and the vertical distance between the two and the upper pressure roller (2); 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 each pressing roller.
2. The variable center distance three-roller plate rolling machine according to claim 1, characterized in that: The regulating mechanism comprises: A support platform (5) is slidably disposed on the main frame (1); A left roller support is disposed on the support platform (5) and can slide leftward and rightward, and supports and positions the left pressure roller (3); The right roller support is arranged on the support platform (5) and can slide leftward and rightward, and supports and positions the right pressure roller (4).
3. The variable center distance three-roller plate rolling machine according to claim 2, characterized in that: The left roller support comprises a first end seat (6) and a second end seat (7) which are respectively rotatably connected to the two ends of the left pressure roller (3); the right roller support comprises a third end seat (8) and a fourth end seat (9) which are respectively rotatably connected to the two ends of the right pressure roller (4); the first end seat (6) and the third end seat (8) are slidably connected to the support platform (5) via a first guide rail; the second end seat (7) and the fourth end seat (9) are slidably connected to the support platform (5) via a second guide rail.
4. The variable center distance three-roller plate rolling machine according to claim 3, characterized in that: The left roller support further comprises a left rod body seat (10), the left rod body seat (10) being slidable left and right and arranged on the support platform (5), the left rod body seat (10) being connected to the first end seat (6) and the second end seat (7) via a left synchronization rod (11), the left rod body seat (10) being provided with two pulleys, the left rod body seat (10) supporting the lower middle side of the left pressure roller (3) via the two pulleys; The right roller support also includes a right rod body seat (12), and the right rod body seat (12) can be slid left and right on the support platform (5). The right rod body seat (12) is connected to the third end seat (8) and the fourth end seat (9) through a right synchronization rod (13). The right rod body seat (12) is provided with two pulleys, and the right rod body seat (12) supports the lower middle side of the right pressure roller (4) through the two pulleys.
5. The variable center distance three-roller plate rolling machine according to claim 4, characterized in that: The regulating mechanism also includes: Two lifting drive cylinders (14) are arranged on the main frame (1), respectively supporting the front and rear ends of the support platform (5) and used to drive the support platform (5) to move up and down; Two left roller driving cylinders (15) are arranged on the support platform (5) and are respectively arranged on the left side of the first end seat (6) and the second end seat (7), and are used to drive the first end seat (6) and the second end seat (7) to synchronously move left and right; Two right roller driving cylinders (16) are arranged on the support platform (5) and are respectively arranged on the right side of the third end seat (8) and the fourth end seat (9), and are used to drive the third end seat (8) and the fourth end seat (9) to synchronously move left and right; The left roller driving cylinder (15) and the right roller driving cylinder (16) are arranged symmetrically with respect to the upper pressure roller (2).
6. The variable center distance three-roller plate rolling machine according to claim 1, characterized in that: The rotary drive device comprises an upper roller drive motor (17), a left roller drive motor (18) and a right roller drive motor (19); the transmission mechanism comprises an upper transmission shaft (20), a left transmission shaft (21) and a right transmission shaft (22); One end of the upper transmission shaft (20) is connected to the upper roller driving motor (17) via a first universal coupling, and the other end is connected to the upper pressure roller (2) via a second universal coupling; One end of the left transmission shaft (21) is connected to the left roller driving motor (18) via a third universal coupling, and the other end is connected to the left pressure roller (3) via a fourth universal coupling; One end of the right transmission shaft (22) is connected to the right roller drive motor (19) via a fifth universal joint, and the other end is connected to the right pressure roller (4) via a sixth universal joint.
7. The variable center distance three-roller plate rolling machine according to claim 2, characterized in that: The invention comprises a metering mechanism (23), wherein the metering mechanism (23) comprises: A mounting bracket (24) fixed to the support platform (5); A movable bracket (25) is movably connected to the mounting bracket (24) and is disposed below the left pressure roller (3) and the right pressure roller (4); The metering wheel (26) is rotatably connected to the movable bracket (25) and is used to contact the plate and roll therewith; the metering wheel (26) is connected to an encoder and is used to measure the conveying length of the plate.