Hydraulic drive structure for a metal sheet straightening machine

By introducing a hydraulic drive structure into the metal sheet leveling machine, using a servo motor and gearbox to drive the leveling rollers to rotate, and combining this with hydraulic control components to adjust the gap and pressure of the leveling rollers, the shortcomings of existing leveling machines in terms of stability and pressure adjustment are solved, achieving a high-quality metal sheet leveling effect.

CN224058404UActive Publication Date: 2026-03-31DONGGUAN DEYUAN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing metal sheet leveling machines lack a stable and pressure-adjustable structure, resulting in large fluctuations in the leveling rollers during processing, which affects processing quality and accuracy.

Method used

It adopts a hydraulic drive structure with a main frame and a moving frame. The leveling roller is driven to rotate by a servo motor and a gearbox. The gap and pressure of the leveling roller are adjusted by hydraulic control components. The pressure of hydraulic oil is controlled by hydraulic cylinders and control valves to achieve stability and flexible adjustment of the leveling roller.

Benefits of technology

It improves the stability and processing quality of the leveling rollers, meets the precision requirements of metal sheets, and enables flexible adjustment of the gap and pressure of the leveling rollers.

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Abstract

The utility model provides a hydraulic drive structure for metal sheet straightening machine belongs to the field of straightening machine, this hydraulic drive structure for metal sheet straightening machine, including mainframe, the outside installation of mainframe has installed cover, the surface of installed cover is equipped with control panel. The utility model: the hydraulic cylinder cooperation accuse oil valve controls and adjusts the hydraulic oil in the cylinder body, the pressure that the hydraulic oil in the hydraulic cylinder produces drives piston to remove, piston drives hydraulic rod to remove up and down, hydraulic rod cooperation fixed sleeve drives mobile frame to remove the movement of different degrees, and mobile frame cooperation upper support drives a plurality of straightening roll removal, the pressure that is convenient for the adjustment of the gap between straightening roll to straightening roll is adjusted, satisfies the demand that metal sheet processing precision and the flexible adjustment of roll axle in the device.
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Description

Technical Field

[0001] This utility model relates to the field of leveling machines, specifically a hydraulic drive structure for a metal sheet leveling machine. Background Technology

[0002] The hydraulic leveling machine employs an intermediate roller structure with two or three layers of rollers on each of the upper and lower rows of leveling working rollers and support bearings (wheels), forming a total of four or six layers of rollers. This provides a certain degree of support for the leveling rollers. A search of application CN202321898313.4 discloses an adjustable hydraulic leveling machine, which includes a frame and a pair of support plates fixedly mounted on the frame, each support plate having a movement groove; it also includes a lower leveling roller group, a drive unit, a pair of leveling gap adjustment structures, an upper leveling roller group, a folding and storage structure, and a material unloading and flat-jointing structure; the lower leveling roller group is rotatably connected to the pair of support plates; the drive unit drives the lower leveling roller group to rotate in the same direction; the pair of leveling gap adjustment structures... The structure is mounted on a pair of support plates to extend the length of the leveling plate's unloading point. It receives the leveled plate through a horizontal connection, eliminating the need for manual lifting of the plate and reducing the risk of injury. The plate is pushed and unloaded using a rolling motion, allowing for diverse unloading directions and reducing noise from metal friction. However, the above description has the following drawbacks in practical use: existing leveling machines require continuous pressing of multiple leveling rollers to eliminate surface defects generated during metal plate processing and achieve the required flatness. However, existing structures lack stable and adjustable pressure mechanisms. Therefore, a highly practical hydraulic drive structure for metal plate leveling machines needs to be designed. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic drive structure for a metal sheet leveling machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic drive structure for a metal sheet leveling machine, comprising a main frame, an installation cover mounted on the outside of the main frame, and a control panel provided on the surface of the installation cover;

[0005] A leveling assembly includes lower supports mounted on both ends of the main frame surface, an upper support on the top of the lower supports, and several leveling rollers rotatably mounted on the surfaces of the two lower supports and the upper support at their adjacent ends. The top of the upper support is fixedly connected to the bottom of the mobile frame. Several T-shaped brackets are provided in the middle of the opposite side surfaces of the main frame and the mobile frame. Several limiting support rollers are provided on the inner walls of the several T-shaped brackets. The several limiting support rollers are staggered between the several leveling rollers. A driving device is provided on one side of both the main frame and the mobile frame.

[0006] A hydraulic control assembly includes fixed sleeves installed at the four corners of the top of the main frame. A fixed rod is provided at the bottom of each fixed sleeve. The surface of the fixed rod is interlocked with the four sides of the top of the main frame. A limiting seat is provided at the bottom end of the fixed rod. A connecting rod is engaged with the inner wall of the fixed sleeve. A limiting ring is provided at the top end of the connecting rod. The limiting ring is fixedly connected to the top end of the fixed sleeve. The top of the connecting rod is fixedly connected to the bottom of a hydraulic rod. The top end of the hydraulic rod is interlocked with the four corners of the top of the mobile frame. A piston is fixedly connected to the top of the hydraulic rod. The piston is slidably connected to the inner wall of a hydraulic cylinder. The hydraulic cylinder is located at the four corners of the top of the mobile frame. An oil control valve is provided on the side of the top of the hydraulic cylinder.

[0007] As a preferred embodiment of the present invention: the driving device includes two gearboxes fixedly installed on one side of the main frame and the mobile frame, the two gearboxes having a plurality of gear structures inside, the surfaces of the plurality of gear structures being fixedly connected to a plurality of leveling rollers, and a servo motor being provided on the other side of each of the two gearboxes.

[0008] As a preferred embodiment of this utility model: a first through hole is provided at each of the four corners of the top of the main frame, and a second through hole is provided at each of the four corners of the top of the mobile frame. The inner wall of the first through hole is inserted and engaged with the surface of the fixed rod, and the inner wall of the second through hole is inserted and engaged with the surface of the hydraulic rod.

[0009] As a preferred embodiment of this utility model: a limiting hole is provided on the side of the fixed sleeve, and the inner wall of the limiting hole is engaged with the insertion hole provided on the surface of the connecting rod through a limiting rod. An auxiliary hole is provided on the surface of the other end of the limiting rod, and a pin is engaged on the inner wall of the auxiliary hole.

[0010] As a preferred embodiment of this utility model: the main frame is provided with auxiliary supports on both the surface and the back, and the auxiliary supports are provided with a number of auxiliary rollers inside.

[0011] As a preferred embodiment of this utility model, the servo motor is electrically connected to an external power supply via a control panel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) Two servo motors on one side of the main frame and the mobile frame, together with several gear structures inside the two gearboxes, drive several leveling rollers between the two upper supports and the lower supports to rotate. Several limit support rollers installed on the inner wall of several T-shaped brackets are staggered between several leveling rollers, thereby ensuring the stability of the leveling rollers in the processing of metal sheets and reducing the floating of the leveling rollers, so as to achieve the required quality for leveling metal sheets.

[0014] (2) By engaging the bottom of the hydraulic rod with the inner wall of the fixed sleeve, and fixing the limiting ring on the surface of the connecting rod with the top of the fixed sleeve, the limiting rod is inserted into the corresponding limiting hole and insertion hole, so that the limiting rod engages with the connecting rod, and the pin engages with the inner wall of the auxiliary hole, thereby further limiting and fixing the hydraulic rod and the fixed sleeve to ensure the firmness of the connection. The hydraulic cylinder, in conjunction with the oil control valve, controls and adjusts the hydraulic oil entering and exiting the cylinder. The pressure generated by the hydraulic oil in the hydraulic cylinder drives the piston to move, and the piston drives the hydraulic rod to move up and down. The hydraulic rod, in conjunction with the fixed sleeve, drives the moving frame to move to different degrees. The moving frame, in conjunction with the upper support, drives several leveling rollers to move, thereby facilitating the adjustment of the gap between the leveling rollers and the adjustment of the pressure applied to the leveling rollers to meet the requirements of metal sheet processing accuracy and flexible adjustment of the roller shaft inside the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the leveling component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the hydraulic control component structure of this utility model.

[0019] In the diagram: 1. Main frame; 11. Mounting cover; 12. Control panel; 13. Gearbox; 14. Servo motor; 15. First through hole; 16. Second through hole; 17. Auxiliary support; 18. Auxiliary roller; 2. Leveling assembly; 21. Lower support; 22. Upper support; 23. Leveling roller; 24. Moving frame; 25. T-shaped support; 26. Limiting support roller; 3. Hydraulic control assembly; 31. Fixed sleeve; 32. Fixed rod; 33. Limiting seat; 34. Connecting rod; 35. Limiting ring; 36. Hydraulic rod; 37. Piston; 38. Hydraulic cylinder; 39. Oil control valve; 310. Limiting hole; 311. Limiting insertion rod; 312. Insertion hole; 313. Auxiliary hole; 314. Pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see Figures 1-4 A hydraulic drive structure for a metal sheet leveling machine includes: a main frame 1, an mounting cover 11 installed on the outside of the main frame 1, and a control panel 12 provided on the surface of the mounting cover 11.

[0022] Please see Figure 3 The leveling assembly 2 includes lower supports 21 installed at both ends of the surface of the main frame 1. The top of the lower supports 21 is provided with an upper support 22. Several leveling rollers 23 are rotatably installed on the surfaces of the two lower supports 21 and the upper support 22 that are close to each other. The top of the upper support 22 is fixedly connected to the bottom of the mobile frame 24. Several T-shaped brackets 25 are provided in the middle of the opposite side surfaces of the main frame 1 and the mobile frame 24. Several limiting support rollers 26 are provided on the inner walls of the several T-shaped brackets 25. The several limiting support rollers 26 are staggered between the several leveling rollers 23. A driving device is provided on one side of the main frame 1 and the mobile frame 24.

[0023] In practical use: Two servo motors 14 on one side of the main frame 1 and the mobile frame 24, together with several gear structures inside the two gearboxes 13, drive several leveling rollers 23 between the two upper supports 22 and the lower support 21 to rotate. Several limiting support rollers 26, which are rotatably installed on the inner wall of several T-shaped brackets 25, are staggered between several leveling rollers 23, thereby ensuring the stability of the leveling rollers 23 in processing metal sheets and reducing the floating of the leveling rollers 23, so as to achieve the required quality for leveling metal sheets.

[0024] Please see Figure 4 The hydraulic control component 3 includes a fixed sleeve 31 installed at the four corners of the top of the main frame 1. The bottom of the fixed sleeve 31 is provided with a fixed rod 32. The surface of the fixed rod 32 is inserted and connected to the four sides of the top of the main frame 1. The bottom surface of the fixed rod 32 is provided with a limiting seat 33. The inner wall of the fixed sleeve 31 is engaged with a connecting rod 34. The top surface of the connecting rod 34 is provided with a limiting ring 35. The limiting ring 35 is fixedly connected to the top surface of the fixed sleeve 31. The top of the connecting rod 34 is fixedly connected to the bottom of the hydraulic rod 36. The top surface of the hydraulic rod 36 is inserted and connected to the four corners of the top of the mobile frame 24. The top of the hydraulic rod 36 is fixedly connected with a piston 37. The piston 37 is slidably connected to the inner wall of the hydraulic cylinder 38. The hydraulic cylinder 38 is located at the four corners of the top of the mobile frame 24. The side of the top of the hydraulic cylinder 38 is provided with an oil control valve 39.

[0025] In practical use: The bottom connecting rod 34 of the hydraulic rod 36 is engaged with the inner wall of the fixed sleeve 31. The limiting ring 35 on the surface of the connecting rod 34 is then fixedly connected to the top of the fixed sleeve 31. The limiting insert 311 is inserted into the corresponding limiting hole 310 and insertion hole 312, engaging with the connecting rod 34. The pin 314 is engaged with the inner wall of the auxiliary hole 313, further limiting and fixing the hydraulic rod 36 and the fixed sleeve 31, ensuring the connection's firmness. The hydraulic cylinder 38, in conjunction with the oil control valve 39, controls the cylinder's movement. The hydraulic oil inside the body is controlled and regulated. The pressure generated by the hydraulic oil in the hydraulic cylinder 38 drives the piston 37 to move. The piston 37 drives the hydraulic rod 36 to move up and down. The hydraulic rod 36, together with the fixed sleeve 31, drives the moving frame 24 to move to different degrees. The moving frame 24, together with the upper support 22, drives several leveling rollers 23 to move. This facilitates the adjustment of the gap between the leveling rollers 23 and the adjustment of the pressure applied to the leveling rollers 23, so as to meet the requirements of metal sheet processing accuracy and flexible adjustment of the roller shaft inside the device.

[0026] Please see Figure 3The drive unit includes two gearboxes 13 fixedly installed on one side of the main frame 1 and the mobile frame 24. The interior of the two gearboxes 13 is provided with several gear structures. The surfaces of the several gear structures are fixedly connected to several leveling rollers 23. Servo motors 14 are provided on the other side of the two gearboxes 13.

[0027] In practical use: Two servo motors 14 on one side of the main frame 1 and the mobile frame 24, together with several gear structures inside the two gearboxes 13, drive several leveling rollers 23 between the two upper supports 22 and the lower support 21 to rotate, and the several leveling rollers 23 perform leveling processing on the metal plates in the gap.

[0028] Please see Figure 3 The main frame 1 has a first through hole 15 at each of the four corners of the top, and the mobile frame 24 has a second through hole 16 at each of the four corners of the top. The inner wall of the first through hole 15 is inserted and engaged with the surface of the fixed rod 32, and the inner wall of the second through hole 16 is inserted and engaged with the surface of the hydraulic rod 36.

[0029] In practical use: the surfaces of several fixed rods 32 are inserted and engaged with the inner walls of several first through holes 15, thereby fixing the fixed rods 32 and fixed sleeves 31 to the main frame 1. The surfaces of several hydraulic rods 36 are inserted and engaged with the inner walls of several second through holes 16, thereby facilitating the movement of the hydraulic rods 36 in conjunction with the piston 37 while driving the moving frame 24 to move.

[0030] Please see Figure 4 The fixed sleeve 31 has a limiting hole 310 on its side. The inner wall of the limiting hole 310 is engaged with the insertion hole 312 on the surface of the connecting rod 34 through the limiting rod 311. The surface of the other end of the limiting rod 311 has an auxiliary hole 313, and the inner wall of the auxiliary hole 313 is engaged with a pin 314.

[0031] In practical use: engage the connecting rod 34 at the bottom of the hydraulic rod 36 with the inner wall of the fixed sleeve 31, and fix the limiting ring 35 on the surface of the connecting rod 34 with the top of the fixed sleeve 31. Insert the limiting rod 311 into the corresponding limiting hole 310 and insertion hole 312 to engage the limiting rod 311 with the connecting rod 34. Engage the pin 314 with the inner wall of the auxiliary hole 313 to further limit and fix the hydraulic rod 36 and the fixed sleeve 31, ensuring the firmness of the connection.

[0032] Please see Figure 1 The main frame 1 has auxiliary supports 17 on both its surface and back, and the auxiliary supports 17 have several auxiliary rollers 18 inside.

[0033] In practical use: the two auxiliary supports 17 on the surface and back of the main frame 1, together with several auxiliary rollers 18, facilitate the conveying of the processed metal sheet by the device.

[0034] Please see Figure 2 The servo motor 14 is electrically connected to an external power supply via the control panel 12.

[0035] In practical use: The servo motor 14 is controlled by the control panel 12, which facilitates the control of the equipment leveling operation.

[0036] In use, the connecting rod 34 at the bottom of the hydraulic rod 36 is engaged with the inner wall of the fixed sleeve 31. The limiting ring 35 on the surface of the connecting rod 34 is then fixedly connected to the top of the fixed sleeve 31. The limiting insert 311 is inserted into the corresponding limiting hole 310 and insertion hole 312, engaging with the connecting rod 34. The pin 314 is then engaged with the inner wall of the auxiliary hole 313, further limiting and fixing the hydraulic rod 36 and the fixed sleeve 31 to ensure the connection's firmness. The hydraulic cylinder 38, in conjunction with the oil control valve 39, controls the inlet and outlet... The hydraulic oil in the cylinder is controlled and regulated. The pressure generated by the hydraulic oil in the hydraulic cylinder 38 drives the piston 37 to move. The piston 37 drives the hydraulic rod 36 to move up and down. The hydraulic rod 36, together with the fixed sleeve 31, drives the moving frame 24 to move to different degrees. The moving frame 24, together with the upper support 22, drives several leveling rollers 23 to move. The gap between the leveling rollers 23 is adjusted, and the pressure applied to the leveling rollers 23 is also adjusted to meet the requirements of metal sheet processing accuracy and flexible adjustment of the roller shaft in the device.

[0037] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic drive structure for a sheet metal leveler, characterized by, Include: The main rack (1), the outer installation of the main rack (1) is equipped with the installation cover (11), the surface of the installation cover (11) is equipped with the control panel (12); The leveling assembly (2) includes the lower support (21) installed on both ends of the surface of the main rack (1), the top of the lower support (21) is equipped with the upper support (22), the surface of the two lower supports (21) and the upper support (22) is close to one end, and a plurality of leveling rollers (23) are rotatably installed on the surface, the top of the upper support (22) is fixedly connected with the bottom of the moving rack (24), and the middle of the surface of the main rack (1) and the moving rack (24) on the opposite side is equipped with a plurality of T-shaped supports (25), the inner wall of the plurality of T-shaped supports (25) is equipped with a plurality of limiting support rollers (26), and the plurality of limiting support rollers (26) are staggered between the plurality of leveling rollers (23), and the side of the main rack (1) and the moving rack (24) is equipped with a driving device; The hydraulic control assembly (3) includes a fixed sleeve (31) installed at the four corners of the top of the main rack (1), the bottom of the fixed sleeve (31) is equipped with a fixed rod (32), the surface of the fixed rod (32) is connected with the four corners of the top of the main rack (1), the surface of the bottom end of the fixed rod (32) is equipped with a limiting seat (33), the inner wall of the fixed sleeve (31) is connected with the butt joint rod (34), the surface of the top end of the butt joint rod (34) is equipped with a limiting ring (35), the limiting ring (35) is fixedly connected with the surface of the top end of the fixed sleeve (31), the top of the butt joint rod (34) is fixedly connected with the bottom of the hydraulic rod (36), the surface of the top end of the hydraulic rod (36) is connected with the four corners of the top of the moving rack (24), the top of the hydraulic rod (36) is fixedly connected with the piston (37), the piston (37) is slidably connected with the inner wall of the hydraulic cylinder (38), the hydraulic cylinder (38) is arranged at the four corners of the top of the moving rack (24), and the side of the top end of the hydraulic cylinder (38) is equipped with an oil control valve (39).

2. The hydraulic drive structure for a sheet metal leveler according to claim 1, wherein: The driving device includes two gear boxes (13) fixedly installed on one side of the main rack (1) and the moving rack (24), a plurality of gear structures are arranged in the two gear boxes (13), the surfaces of the plurality of gear structures are fixedly connected with the plurality of leveling rollers (23), and the other sides of the two gear boxes (13) are provided with servo motors (14).

3. The hydraulic drive structure for a sheet metal leveler according to claim 1, wherein: The four corners of the top of the main rack (1) are provided with first through holes (15), the four corners of the top of the moving rack (24) are provided with second through holes (16), the inner wall of the first through hole (15) is inserted and engaged with the surface of the fixed rod (32), and the inner wall of the second through hole (16) is inserted and engaged with the surface of the hydraulic rod (36).

4. The hydraulic drive structure for a sheet metal leveler according to claim 1, wherein: The side of the fixed sleeve (31) is provided with a limiting hole (310), the inner wall of the limiting hole (310) is clamped and connected with the surface of the butt rod (34) provided with a insertion hole (312) through a limiting insertion rod (311), the surface of the other end of the limiting insertion rod (311) is provided with an auxiliary hole (313), the inner wall of the auxiliary hole (313) is clamped with a bolt (314).

5. The hydraulic drive structure for a sheet metal leveler according to claim 1, wherein: The surface and the back of the main rack (1) are provided with auxiliary supports (17), the inside of the auxiliary supports (17) is provided with a plurality of auxiliary rollers (18).

6. The hydraulic drive structure for a sheet metal leveler according to claim 2, wherein: The servo motor (14) is electrically connected with the external power supply through the control panel (12).

Citation Information

Patent Citations

  • Adjustable hydraulic leveler

    CN220277917U