Oil cylinder underneath type three-roller profile bending machine

Abstract

The utility model discloses a three-roller profile bending machine with an underneath type oil cylinder, which comprises a main body rack for supporting a main body structure; the upper compression roller is arranged on one side of the main body rack in a vertical lifting manner and is used for controlling the bending radian of the profile; the left pressing roller and the right pressing roller are arranged below the upper pressing roller, and the left pressing roller, the right pressing roller and the upper pressing roller are arranged in a delta shape; the lifting driving oil cylinder is vertically arranged on the main body rack, is arranged below the upper pressing roller and is used for driving the upper pressing roller to move up and down in a lifting manner; the rotating driving device provides rotating power, and the transmission mechanism transmits the rotating power to the upper pressing roller, the left pressing roller and the right pressing roller to drive the upper pressing roller, the left pressing roller and the right pressing roller to rotate; according to the utility model, the space occupation of the equipment in the vertical direction is obviously reduced, so that the equipment is more suitable for being used in a limited space, and the bending radian and the conveying length of the profile can be accurately controlled, thereby greatly improving the processing precision and the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of profile bending machines, in particular to a three-roller profile bending machine with a bottom oil cylinder. Background Art

[0002] Bending profiles is a common process requirement in metal processing, construction, automobile manufacturing and other industries. In order to meet this demand, there are already a variety of profile bending machines on the market. However, traditional profile bending machines often have problems such as complex structure, large space occupation, inconvenient operation and low processing accuracy in design.

[0003] Especially in some working environments with limited space, traditional profile bending machines are often difficult to adapt due to their large size and complex structure. In addition, during the bending process, traditional bending machines often cannot ensure the bending accuracy and consistency of profiles due to the lack of precise control systems, thus affecting product quality and production efficiency. Summary of the invention

[0004] The purpose of the utility model is to provide a three-roller profile bending machine with a lower cylinder to solve the problems in the prior art. It not only significantly reduces the space occupied by the equipment in the vertical direction, making it more suitable for use in a limited space, but also can accurately control the bending curvature and transmission length of the profile, thereby greatly improving the processing accuracy and production efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A three-roller profile bending machine with a lower cylinder includes a main frame to provide support for the main structure; an upper pressure roller, which can be raised and lowered and is arranged on one side of the main frame and is used to control the bending curvature of the profile; a left pressure roller and a right pressure roller, which are arranged below the upper pressure roller and are arranged in a herringbone shape with the upper pressure roller; a lifting drive cylinder, which is vertically arranged on the main frame and below the upper pressure roller and is used to drive the upper pressure roller to lift and lower; a rotation drive device and a transmission mechanism, wherein the rotation drive device provides rotational power, and the transmission mechanism transmits the rotational power to the upper pressure roller, the left pressure roller and the right pressure roller respectively to drive them to rotate.

[0007] A mounting groove is provided on one side of the main frame, a liftable sliding plate is provided in the mounting groove, and the upper pressing roller passes through the sliding plate and is connected with the sliding plate through a bearing to realize rotation.

[0008] The cylinder body of the lifting drive oil cylinder is fixed to the main frame, and the telescopic rod of the lifting drive oil cylinder is connected to the lower side of the sliding plate; the lifting drive oil cylinder controls the position of the upper pressure roller by adjusting the height of the sliding plate.

[0009] The sliding plate is provided with a first support rod above the upper pressing roller, the first support rod is connected with a first support ring, and the first support ring supports the suspended end of the upper pressing roller and rotates relative to the suspended end.

[0010] The main frame is provided with a second support rod and a third support rod, the second support rod is connected to a second support ring, the third support rod is connected to a third support ring, the second support ring and the third support ring respectively support the suspended ends of the left pressure roller and the right pressure roller and rotate relative to them.

[0011] The device also includes a metering mechanism, which includes: a mounting bracket fixed to the main frame; a movable bracket movably connected to the mounting bracket and arranged below the left pressure roller and the right pressure roller; a metering wheel rotatably connected to the movable bracket, in contact with the profile and rolling therewith; the metering wheel is connected to an encoder and is used to measure the conveying length of the profile.

[0012] The rotary drive device comprises an upper roller drive motor, a left roller drive motor and a right roller drive motor, and the transmission mechanism comprises an upper roller drive rod, a left roller drive rod and a right roller drive rod; one end of the upper roller drive rod is connected to the upper roller drive motor through a coupling, and the other end is connected to the upper pressure roller through a coupling; one end of the left roller drive rod is connected to the left roller drive motor through a coupling, and the other end is connected to the left pressure roller through a coupling; one end of the right roller drive rod is connected to the right roller drive motor through a coupling, and the other end is connected to the right pressure roller through a coupling.

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

[0014] The lifting drive cylinder is designed to be placed below the machine frame. The lifting drive cylinder is compactly installed inside the main frame, below the upper pressure roller. This design makes the structure of the entire machine more compact, thereby significantly reducing the space occupied by the equipment in the vertical direction, making it more suitable for use in limited spaces.

[0015] The lifting drive cylinder is used as the power source. When the telescopic rod of the cylinder is extended and retracted, it pushes or pulls the sliding plate to move up and down in the installation groove. Since the upper pressure roller passes through the sliding plate and is connected to it through the bearing, the lifting and lowering of the sliding plate will directly drive the lifting and lowering of the upper pressure roller. By controlling the extension and retraction length of the telescopic rod of the cylinder, the height position of the upper pressure roller can be accurately adjusted.

[0016] The metering wheel is designed to maintain stable contact with the profile. When the profile is conveyed, the metering wheel will contact the profile and roll with it. This rolling action is converted into an electrical signal through the encoder, thereby accurately measuring the conveying length of the profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a profile bending machine in one embodiment of the present application;

[0018] Figure 2 A position diagram of an upper pressure roller, a left pressure roller, a right pressure roller, and a lifting drive cylinder on one side of a main frame in an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of a metering mechanism in one embodiment of the present application;

[0020] Figure 4 This is a structural schematic diagram of a rotation drive device and a transmission mechanism in an embodiment of the present application;

[0021] In the figure: 1. main frame; 2. upper pressure roller; 3. left pressure roller; 4. right pressure roller; 5. lifting drive cylinder; 6. sliding plate; 7. first support rod; 8. first support ring; 9. second support rod; 10. third support rod; 11. second support ring; 12. third support ring; 13. metering mechanism; 14. mounting bracket; 15. movable bracket; 16. metering wheel; 17. upper roller drive motor; 18. left roller drive motor; 19. right roller drive motor; 20. upper roller transmission rod; 21. left roller transmission rod; 22. right roller transmission rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figures 1 to 4 As shown, a three-roller profile bending machine with a lower cylinder includes a main frame 1, which provides support for the main structure; an upper pressure roller 2, which can be lifted up and down and is arranged on one side of the main frame 1, and is used to control the bending curvature of the profile; a left pressure roller 3 and a right pressure roller 4, which are arranged below the upper pressure roller 2 and are arranged in a herringbone shape with the upper pressure roller 2; a lifting drive cylinder 5, which is vertically arranged on the main frame 1 and below the upper pressure roller 2, and is used to drive the upper pressure roller to lift up and down; a rotary drive device and a transmission mechanism, the rotary drive device provides rotary power, and the transmission mechanism transmits the rotary power to the upper pressure roller, the left pressure roller and the right pressure roller respectively to drive them to rotate.

[0027] The profile passes through the upper roller 2 and the left roller 3 and the right roller 4. When the rotary drive device is started, the upper roller 2, the left roller 3 and the right roller 4 will rotate synchronously through the transmission mechanism. This synchronous rotation realizes the smooth transmission of the profile between the three rollers. At the same time, by accurately controlling the up and down displacement of the upper roller 2, the bending curvature of the profile when passing through the rollers can be adjusted, thereby achieving the desired bending effect.

[0028] The lifting drive cylinder is vertically installed on the main frame and is located below the upper pressure roller. When the position of the upper pressure roller 2 needs to be adjusted, the lifting drive cylinder will be activated to push or pull the upper pressure roller 2 to move up and down.

[0029] In the present embodiment, the lifting drive cylinder is designed to be placed downward, and the lifting drive cylinder is compactly installed inside the main frame 1, below the upper pressure roller 2. This design makes the structure of the entire machine more compact, thereby significantly reducing the space occupied by the equipment in the vertical direction, making it more suitable for use in limited spaces.

[0030] In some embodiments, a mounting groove is provided on one side of the main frame, and a sliding plate 6 that can be raised and lowered is provided in the mounting groove. The upper pressing roller 2 passes through the sliding plate 6 and is connected to the sliding plate 6 through a bearing to achieve rotation. This design enables the upper pressing roller 2 to be raised and lowered driven by the sliding plate 6. At the same time, through the connection of the bearing, the upper pressing roller 2 can rotate freely to meet the processing requirements of the profile. Through the lifting and lowering sliding plate 6 in the mounting groove, the height of the upper pressing roller 2 can be conveniently adjusted, thereby flexibly controlling the bending curvature of the profile.

[0031] In some embodiments, the cylinder body of the lifting drive cylinder 5 is fixed to the main frame 1, and its telescopic rod is connected to the lower side of the sliding plate 6; the lifting drive cylinder 5 controls the position of the upper pressure roller 2 by adjusting the height of the sliding plate 6.

[0032] Specifically, the lifting drive cylinder 5 serves as a power source. When the telescopic rod of the cylinder is extended and retracted, it pushes or pulls the sliding plate 6 to move up and down in the installation groove. Since the upper pressure roller 2 passes through the sliding plate 6 and is connected to it through a bearing, the lifting and lowering of the sliding plate 6 will directly drive the lifting and lowering of the upper pressure roller 2. By controlling the extension and retraction length of the telescopic rod of the cylinder, the height position of the upper pressure roller 2 can be accurately adjusted.

[0033] In some embodiments, a first support rod 7 is provided above the upper pressure roller 2 on the sliding plate 6, and the first support rod 7 is connected to a first support ring 8, which supports the suspended end of the upper pressure roller 2 and rotates relative thereto. By adding the first support rod 7 and the first support ring 8, the suspended end of the upper pressure roller 2 is additionally supported, which greatly improves its stability during operation and reduces vibration and deviation.

[0034] In some embodiments, the main frame 1 is provided with a second support rod 9 and a third support rod 10, the second support rod 9 is connected to a second support ring 11, the third support rod 10 is connected to a third support ring 12, the second support ring 11 and the third support ring 12 respectively support the suspended ends of the left pressure roller and the right pressure roller and rotate relative to them.

[0035] By adding the second support rod 9 and the third support rod 10 and the corresponding support rings, the stability of the left pressure roller 3 and the right pressure roller 4 is significantly improved, and the vibration and deviation of the pressure rollers during operation are reduced, thereby improving the running stability of the whole machine.

[0036] In some embodiments, the device includes a metering mechanism 13, which includes: a mounting bracket 14, which is fixed to the main frame 1; a movable bracket 15, which is movably connected to the mounting bracket 14 and is arranged below the left pressure roller 3 and the right pressure roller 4; a metering wheel 16, which is rotatably connected to the movable bracket 15, contacts with the profile and rolls therewith; the metering wheel 16 is connected to an encoder for measuring the conveying length of the profile.

[0037] Specifically, the mounting bracket 14 provides stable support for the entire metering mechanism, and the movable bracket 15 can be fine-tuned according to the thickness or position of the profile to ensure that the metering wheel 16 can maintain stable contact with the profile. When the profile is being transported, the metering wheel 16 will contact the profile and roll with it. This rolling action is converted into an electrical signal by the encoder, thereby accurately measuring the transport length of the profile.

[0038] In some embodiments, the rotary drive device includes an upper roller drive motor 17, a left roller drive motor 18 and a right roller drive motor 19, and the transmission mechanism includes an upper roller drive rod 20, a left roller drive rod 21 and a right roller drive rod 22; one end of the upper roller drive rod 20 is connected to the upper roller drive motor 17 through a coupling, and the other end is connected to the upper pressure roller 2 through a coupling; one end of the left roller drive rod 21 is connected to the left roller drive motor 18 through a coupling, and the other end is connected to the left pressure roller 3 through a coupling; one end of the right roller drive rod 22 is connected to the right roller drive motor 19 through a coupling, and the other end is connected to the right pressure roller 4 through a coupling. By adopting an independent rotary drive device and transmission mechanism, the device not only realizes independent control of the upper pressure roller, the left pressure roller and the right pressure roller, but also improves the transmission efficiency and maintenance convenience of the equipment.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-roller profile bending machine with a lower cylinder, characterized in that: include A main frame (1) provides support for the main structure; An upper pressing roller (2) is arranged on one side of the main frame (1) and can be raised and lowered, and is used to control the bending curvature of the profile; 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); A lifting drive cylinder (5) is vertically arranged on the main frame (1) and below the upper pressure roller (2), and is used to drive the upper pressure roller (2) to move up and down; 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, the left pressure roller and the right pressure roller respectively to drive them to rotate.

2. The three-roller profile bending machine with a lower cylinder according to claim 1, characterized in that: A mounting groove is provided on one side of the main frame, a lifting and lowering sliding plate (6) is provided in the mounting groove, and the upper pressing roller (2) passes through the sliding plate (6) and is connected to the sliding plate (6) via a bearing to achieve rotation.

3. The three-roller profile bending machine with a lower cylinder according to claim 2, characterized in that: The cylinder body of the lifting drive cylinder (5) is fixed to the main frame (1), and the telescopic rod of the lifting drive cylinder (5) is connected to the lower side of the sliding plate (6); the lifting drive cylinder (5) controls the position of the upper pressure roller (2) by adjusting the height of the sliding plate (6).

4. The three-roller profile bending machine with a lower cylinder according to claim 2, characterized in that: The sliding plate (6) is provided with a first support rod (7) above the upper pressure roller (2), and the first support rod (7) is connected to a first support ring (8), and the first support ring (8) supports the suspended end of the upper pressure roller (2) and rotates relative to it.

5. The three-roller profile bending machine with a bottom cylinder according to claim 1, characterized in that: The main frame (1) is provided with a second support rod (9) and a third support rod (10); the second support rod (9) is connected to a second support ring (11); the third support rod (10) is connected to a third support ring (12); the second support ring (11) and the third support ring (12) respectively support the suspended ends of the left pressure roller (3) and the right pressure roller (4) and rotate relative to them.

6. The three-roller profile bending machine with a lower cylinder according to claim 1, characterized in that: The invention comprises a metering mechanism (13), wherein the metering mechanism (13) comprises: A mounting bracket (14) fixed to the main frame (1); A movable bracket (15) is connected to the mounting bracket (14) in a movable manner up and down, and is arranged below the left pressure roller (3) and the right pressure roller (4); The metering wheel (16) is rotatably connected to the movable bracket (15), contacts the profile and rolls therewith; the metering wheel (16) is connected to an encoder and is used to measure the conveying length of the profile.

7. The three-roller profile bending machine with a lower cylinder 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 roller drive rod (20), a left roller drive rod (21) and a right roller drive rod (22); One end of the upper roller transmission rod (20) is connected to the upper roller driving motor (17) via a coupling, and the other end is connected to the upper pressure roller (2) via a coupling; One end of the left roller transmission rod (21) is connected to the left roller driving motor (18) via a coupling, and the other end is connected to the left pressure roller (3) via a coupling; One end of the right roller transmission rod (22) is connected to the right roller driving motor (19) via a coupling, and the other end is connected to the right pressure roller (4) via a coupling.

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