An open and locked high-precision composite straightening device

Abstract

The present invention relates to an open-lock high-precision composite tension-leveling device, comprising a double-bend single straightening machine and a 23-roller precision straightening machine. The double-bend single straightening machine is symmetrically provided with a first bending unit, a second bending unit, and a straightening unit. The 23-roller precision straightening machine is symmetrically provided with an upper roller cassette and a lower roller cassette. The first bending unit, second bending unit, straightening unit, and upper roller cassette located at the upper portion are arranged on an upper frame, while the first bending unit, second bending unit, straightening unit, and lower roller cassette located at the lower portion are arranged on a lower frame. The upper frame and the lower frame are connected on one side by a rotary unit, and an opening cylinder is provided at the bottom end of the other side of the upper frame. This device saves space, reduces costs, produces higher plate shape consistency, and significantly improves production precision.

Description

Technical Field

[0001] The present invention belongs to the technical field of tensioning and straightening devices, and more specifically, the present invention relates to an open and lock type high-precision composite tensioning and straightening device. Background Art

[0002] Strip material warps and deforms during the rolling process. To facilitate deep drawing, it needs to be straightened and reshaped using a straightening device. Existing straightening units lack a backlash elimination device, preventing the clearance created by the rotating shaft from being eliminated during the straightening process, reducing production accuracy. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and propose an open and locking high-precision composite straightening device, which saves space, reduces costs, produces higher plate shape consistency, and greatly improves production accuracy.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An open and locking high-precision composite straightening device, characterized in that it includes a double-bend single straightening machine and a 23-roller precision straightening machine, the double-bend single straightening machine is symmetrically provided with a first bending unit, a second bending unit and a straightening unit, the 23-roller precision straightening machine is symmetrically provided with an upper roller box and a lower roller box, the first bending unit, the second bending unit, the straightening unit and the upper roller box located at the upper part are arranged on the upper frame, and the first bending unit, the second bending unit, the straightening unit and the lower roller box located at the lower part are arranged on the lower frame, the upper frame is connected to the lower frame on one side by a rotary unit, and the bottom end of the other side of the upper frame is symmetrically provided with an opening cylinder longitudinally front and back.

[0006] Furthermore, a rotary locking cylinder is provided between the double-bend single straightening machine and the 23-roller precision straightening machine.

[0007] Furthermore, the rotary locking cylinder is arranged on the lower frame, a rectangular locking plate is fixed to the top end of the piston rod of the rotary locking cylinder, a cam unit is installed around the lower end of the piston rod, and a cam curve is processed on the lower inner wall of the cylinder shell of the rotary locking cylinder, and the cam curve constrains the moving trajectory of the cam unit.

[0008] Furthermore, the cam unit is symmetrically distributed at the lower part of the piston rod, and the cam unit includes guide columns horizontally arranged around the lower part of the piston rod. Bearings are installed at the ends of the guide columns. When the piston rod extends / retracts, the bearings move along the cam curve.

[0009] Furthermore, a deflection adjustment mechanism is provided on one side of the lower frame.

[0010] Furthermore, a pressing structure is provided on the upper frame, and the bottom end of the pressing structure is fixedly connected to the upper roller box.

[0011] Furthermore, a gap-eliminating structure is provided between the upper frame and the lower frame, and two gap-eliminating structures are provided, which are respectively located at both ends between the upper frame and the lower frame.

[0012] Furthermore, the anti-backlash structure includes a shell, the shell is provided with a cavity for placing the disc spring group, the top of the disc spring group is provided with a guide rod, and the top of the shell is provided with a pressure cover.

[0013] Furthermore, an upper frame position detection switch is provided on a side of the lower frame close to the opening cylinder.

[0014] Furthermore, a lock plate position detection switch is provided on the upper frame window of the upper frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] An open and locking high-precision composite straightening device saves space, reduces costs, produces higher consistency in plate shape, improves the yield rate of plate and strip materials, and greatly improves production accuracy; the setting of the rotary unit facilitates the cleaning and maintenance of the roller box; the setting of the anti-gap structure eliminates the gap between the upper and lower frames, greatly improving the production accuracy of the equipment.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the invention.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a diagram of the mechanism of an open and locked high-precision composite straightening device according to an embodiment of the present invention;

[0021] Figure 2 A structural diagram of the anti-backlash structure according to an embodiment of the present invention;

[0022] Figure 3 This is a structural diagram of a rotary locking cylinder according to an embodiment of the present invention;

[0023] Among them: 1. Upper frame; 2. Lower frame; 3. First bending unit; 4. Cylinder; 5. Second bending unit; 6. Straightening unit; 7. Rotary locking cylinder; 8. Lower roller box; 9. Deflection adjustment mechanism; 10. Anti-backlash structure; 11. Rotary unit; 12. Upper roller box; 13. Pressing structure; 14. Housing; 15. Disc spring assembly; 16. Guide rod; 17. Pressure cover; 18. Rectangular lock plate position detection switch; 19. Upper frame position detection switch; 20. Upper frame window; 71. Rectangular lock plate; 72. Cam unit; 73. Cylinder housing; 74. Piston rod. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of arrangements consistent with certain aspects of the present invention as detailed in the appended claims.

[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1-3 As shown, an embodiment of the present invention provides an open and locking high-precision composite straightening device, including a double-bend single straightening machine and a 23-roller precision straightening machine, the double-bend single straightening machine is symmetrically provided with a first bending unit 3, a second bending unit 5 and a straightening unit 6, the 23-roller precision straightening machine is symmetrically provided with an upper roller box 12 and a lower roller box 8, the first bending unit 3, the second bending unit 5, the straightening unit 6 and the upper roller box 12 located at the upper part are arranged on the upper frame 1, and the first bending unit 3, the second bending unit 5, the straightening unit 6 and the lower roller box 8 located at the lower part are arranged on the lower frame 2, the upper frame 1 is connected to the lower frame 2 on one side by a rotary unit 11, and the other side of the upper frame 1 is vertically symmetrically provided with an opening cylinder 4 at the bottom end, and the upper frame 1 is supported by the piston rod of the opening cylinder 4 with the axis of the rotary unit 11 as the rotation center. The double-bending single straightening machine and the 23-roller precision straightening machine are combined with the same upper and lower frames. The production specifications are expanded from 0.1~1.0mm to 0.05~1.0mm. When the first bending unit 3 is working, the production specification is 0.08~1.0mm. When the second bending unit 5 is working, the production specification is 0.05~0.15mm. The setting of the two bending units expands the production specifications and can straighten two different ranges of plate and strip materials. The setting of the rotary unit 11 allows the upper frame 1 to be opened, and the open structure is conducive to the cleaning and maintenance of the roller box.

[0027] like Figure 1 As shown, the present invention installs a rotary locking cylinder 7 between the double-bend single straightener and the 23-roller precision straightener. The rotary locking cylinder 7 is mounted on the lower frame 2. A rectangular locking plate is fixed to the top of the piston rod of the rotary locking cylinder 7. Cam units are mounted on both sides of the bottom end of the piston rod. The lower inner wall of the housing of the rotary locking cylinder 7 is machined with a cam curve. Fluctuations in tension and hydraulic pressure can lead to inaccurate positioning of the opening cylinder 4. Adding a rotary locking cylinder helps lock the working position of the upper frame 1, maintaining the working positions of all roller cassettes, and achieving higher plate shape consistency.

[0028] like Figure 3 As shown, the rotary locking cylinder 7 is mounted on the lower frame 2. A rectangular lock plate 71 is fixed to the top of the piston rod 74 of the rotary locking cylinder 7. Cam units 72 are mounted on both sides of the bottom end of the piston rod 74. A cam curve is machined into the lower inner wall of the cylinder housing 73 of the rotary locking cylinder 7, which constrains the movement trajectory of the cam unit 72. When the upper frame needs to be opened, the rotary locking cylinder 7 must be in the open state. The opening process is when the piston rod 74 is extended under the hydraulic drive. Due to the cam units installed around the lower end of the piston rod 74, the piston rod 74 rotates while extending under the curve constraint. When the piston rod 74 completes its stroke, the piston rod 74 has rotated 90 degrees, and at the same time, it also drives the rectangular lock plate 71 to rotate 90 degrees, so that the rectangular lock plate and the window direction of the upper frame are aligned. At the same time, the position of the rectangular lock plate 71 is detected by the rectangular lock plate position detection switch 18. When the detection switch of the rectangular lock plate 71 sends a signal, the upper frame can execute the opening command under the action of the opening cylinder 4. When the upper frame needs to be closed, the prerequisite is also that the rotary locking cylinder 7 is in the open state. At this time, the detection switch of the rectangular lock plate 71 is always in the signaling state. When the upper frame is closed in place under the action of the opening cylinder 4, the upper frame position detection switch 19 detects that the upper frame is closed in place and starts to send a signal. At this time, the rotary locking cylinder 7 can execute the piston rod 74 retraction command to further lock the upper and lower frames. When the piston rod 74 is retracted under the oil pressure drive, since cam units are installed on both sides of the lower end of the piston rod 74, under the curve constraint, the piston rod retracts and rotates at the same time. When the piston rod retreats to the bottom, the piston rod rotates 90 degrees, and at the same time drives the rectangular lock plate to rotate 90 degrees, so that the rectangular lock plate forms a 90-degree direction with the window direction of the upper frame, and the rectangular lock plate is pressed on the bottom surface of the window of the upper frame, locking the upper and lower frames together.

[0029] Preferably, a deflection adjustment mechanism 9 is provided on one side of the lower frame 2 to equalize the internal stress of the strip and improve the plate shape.

[0030] A downward pressing structure 13 is provided on the upper frame 1, and the bottom end of the downward pressing structure 13 is fixedly connected to the upper roller box 12. By adjusting the downward pressing height of the downward pressing mechanism 13, the distance between the 23-roll upper roller box 12 and the 23-roll lower roller box 8 is adjusted.

[0031] like Figure 2 As shown, a gap elimination structure 10 is provided between the upper frame 1 and the lower frame 4. Two gap elimination structures 10 are provided, one at each end between the upper frame 1 and the lower frame 4, for improving the production accuracy of the equipment. The gap elimination structure 10 includes a housing 14, on which a cavity for placing a disc spring assembly 15 is provided. A guide rod 16 is provided at the top of the disc spring assembly 15, and a pressure cover 17 is provided at the top of the housing. The housing 14 is provided on the lower frame 2. The top of the guide rod 16 contacts the lower surface of the upper frame 1 through the reaction force generated by the disc spring assembly 15. The top surface of the guide rod 16 is an arc surface. When acting on the arc surface of the guide rod 16, the guide rod 16 moves downward, compressing the disc spring assembly 15 and deforming it. At the same time, the disc spring assembly 15 generates a reaction force upward, eliminating the gap between the upper and lower frames. The provision of the gap elimination structure greatly improves the production accuracy of the equipment.

[0032] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0033] It should be understood that the present invention is not limited to the above description and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An open and lock type high-precision composite straightening device, characterized in that: The invention comprises a double-bend single straightening machine and a 23-roller precision straightening machine, wherein the double-bend single straightening machine is provided with a first bending unit (3), a second bending unit (5) and a straightening unit (6) symmetrically arranged in the upper and lower parts, and the 23-roller precision straightening machine is provided with an upper roller box (12) and a lower roller box (8) symmetrically arranged in the upper and lower parts, wherein the first bending unit (3), the second bending unit (5), the straightening unit (6) and the upper roller box (12) located at the upper part are provided on the upper frame (1), and the first bending unit (3), the second bending unit (5) and the straightening unit (6) located at the lower part are provided on the upper frame (1). The lower roller box (8) is arranged on the lower frame (2), the upper frame (1) is connected to the lower frame (2) on one side through a rotary unit (11), and the bottom end of the other side of the upper frame (1) is longitudinally symmetrically provided with an opening cylinder (4); a rotary locking cylinder (7) is provided between the double-bend single straightening machine and the 23-roller precision straightening machine; a gap elimination structure (10) is provided between the upper frame (1) and the lower frame (2), and two gap elimination structures (10) are provided, respectively located at the two ends between the upper frame (1) and the lower frame (2); The rotary locking oil cylinder (7) is arranged on the lower frame (2), a rectangular parallelepiped locking plate (71) is fixed to the top of the piston rod (74) of the rotary locking oil cylinder (7), a cam unit (72) is arranged around the lower end of the piston rod (74), and a cam curve is processed on the inner wall of the lower side of the cylinder housing (73) of the rotary locking oil cylinder (7), and the cam curve constrains the movement trajectory of the cam unit (72).

2. The open and lock type high-precision composite straightening device according to claim 1, characterized in that: The cam unit (72) is symmetrically distributed at the lower part of the piston rod. The cam unit (72) includes a guide column horizontally arranged around the lower part of the piston rod. The end of the guide column is installed with a bearing. When the piston rod extends / retracts, the bearing moves along the cam curve.

3. The open and lock type high-precision composite straightening device according to claim 1, characterized in that: A deflection adjustment mechanism (9) is provided on one side of the lower frame (2).

4. The open and lock type high-precision composite straightening device according to claim 1, characterized in that: A pressing structure (13) is provided on the upper frame (1), and the bottom end of the pressing structure (13) is fixedly connected to the upper roller box (12).

5. The open and lock type high-precision composite straightening device according to claim 1, characterized in that: The anti-backlash structure (10) comprises a shell (14), the shell (14) is provided with a cavity for accommodating a disc spring group (15), a guide rod (16) is provided at the top end of the disc spring group (15), and a pressure cover (17) is provided at the top end of the shell.

6. The open and lock type high-precision composite straightening device according to claim 1, characterized in that: An upper frame position detection switch (19) is provided on a side of the lower frame (2) close to the opening oil cylinder (4).

7. The open and lock type high-precision composite straightening device according to claim 1, characterized in that: A lock plate position detection switch (18) is provided on the upper frame window (20) of the upper frame (1).

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