A foil stress removing mechanism

Abstract

The utility model relates to a kind of foil stress removal mechanism, comprising: support frame body;Stress relief component, it is installed on support frame body, stress relief component eliminates rolling internal stress in relative motion with foil;Wherein, stress relief component includes cylinder, pressure roller, pressure roller mounting bracket and pressure regulating valve, pressure roller mounting bracket is connected with the output end of cylinder, pressure roller is installed on pressure roller mounting bracket by pivot, cylinder is connected to gas source by pressure regulating valve, cylinder is used to drive the relative distance of pressure roller to foil to adjust the pressure between pressure roller and foil.The utility model's foil stress removal mechanism constructs multiple degrees of freedom adjusting mechanism, supports pressure roller horizontal, vertical, transverse three-way independent adjustment, and the foil stress eliminated or reduced by the above-mentioned multiple degrees of freedom adjusting pressure roller, improves foil good product rate from 92% to 98%, solves the internal stress release problem generated in rolling process.

Description

Technical Field

[0001] This utility model relates to the field of metal profile processing technology, and in particular to a foil stress removal mechanism. Background Technology

[0002] For foil materials, such as copper foil, aluminum foil, or tin foil, the quality of the rolled foil sheet shape depends on whether the longitudinal extension of the metal is equal across its width. When uneven deformation occurs, the stress within the deformed body is also unevenly distributed, leading to the generation of additional stress. This residual stress remains within the deformed body after deformation. When the interaction of these residual stresses cannot cancel each other out and exceeds the stress level necessary to maintain the rigidity balance of the foil surface, the foil will become shape unstable, exhibiting waviness. Even a seemingly perfectly flat sheet can develop shape defects under high tension. Therefore, it is necessary to remove or reduce the residual stress within the foil.

[0003] Existing foil stress relief technologies mainly employ the following solutions:

[0004] (1) Rigid pressure roller scheme:

[0005] Structure: The pressure rollers are fixed to the frame, and the vertical spacing is adjusted by bolts. The pressure is determined by mechanical limits.

[0006] Principle: The foil is rigidly extruded by a pressure roller, and the stress is released through plastic deformation.

[0007] (2) Spring floating pressure roller scheme:

[0008] Structure: The pressure roller is connected to the frame via a spring, and the spring force provides pressure;

[0009] Principle: The spring elasticity compensates for the thickness fluctuation of the foil.

[0010] Utility Model Content

[0011] Therefore, the technical problem to be solved by this utility model is to overcome the problems of mechanical rigidity, control lag, and lack of detection in the existing foil stress relief device.

[0012] To solve the above-mentioned technical problems, this utility model provides a foil stress relief mechanism, comprising: a support frame; and at least one stress relief component, wherein the stress relief component is mounted on the support frame and eliminates rolling internal stress during relative movement with the foil; wherein the stress relief component includes a cylinder, a pressure roller, a pressure roller mounting bracket, and a pressure regulating valve, the pressure roller mounting bracket is connected to the output end of the cylinder, the pressure roller is mounted on the pressure roller mounting bracket via a rotating shaft, the cylinder is connected to an air source via the pressure regulating valve, and the cylinder is used to drive the relative distance between the pressure roller and the foil to adjust the pressure between the pressure roller and the foil.

[0013] In one embodiment of this utility model, the outer layer of the pressure roller is made of rubber.

[0014] In one embodiment of this utility model, the support frame is provided with a pressure roller, the axial direction of the pressure roller is parallel to the axial direction of the pressure wheel, and the outer wall of the pressure wheel and the outer wall of the pressure roller are used for passing foil.

[0015] In one embodiment of this utility model, the support frame is provided with an X-axis moving assembly. The X-axis moving assembly includes an X-axis mounting plate, an X-axis guide rail, an X-axis slider, an X-axis moving bracket, and an X-axis limiting plate. The X-axis mounting plate is fixedly mounted on the support frame. The X-axis guide rail is mounted on the X-axis mounting plate. The X-axis slider is disposed on the X-axis guide rail and can slide relative to the X-axis guide rail. The end of the X-axis moving bracket is connected to the X-axis slider. The X-axis limiting plate is mounted on the X-axis moving bracket and is locked to the X-axis mounting plate by fasteners to fix the X-axis moving bracket.

[0016] In one embodiment of this utility model, the X-axis moving bracket is provided with a Y-axis moving assembly. The Y-axis moving assembly includes a Y-axis guide rail, a Y-axis slider, and a Y-axis moving bracket. The Y-axis guide rail is mounted on the X-axis moving bracket, and the Y-axis slider is disposed on the Y-axis guide rail and is capable of sliding relative to the Y-axis guide rail. The Y-axis moving bracket and the Y-axis slider are connected, and the cylinder is mounted on the Y-axis moving bracket. The Y-axis moving assembly can independently adjust the distance between the left and right pressure rollers, and is compatible with foil materials with a width of 500-1200mm.

[0017] In one embodiment of this utility model, the Y-axis guide rail and the X-axis guide rail are arranged perpendicularly, and the Y-axis guide rail is parallel to the axis of the pressure roller.

[0018] In one embodiment of this utility model, a Z-axis guide rail is provided on the Y-axis moving bracket, and a Z-axis slider is connected to the pressure roller mounting bracket. The Z-axis slider is disposed on the Z-axis guide rail and can slide relative to the Z-axis guide rail. A cylinder drives the pressure roller to move vertically, with a stroke of 0-80mm covering the foil thickness fluctuation range.

[0019] In one embodiment of this utility model, the Z-axis guide rail is perpendicular to the axial direction of the pressure roller.

[0020] In one embodiment of this utility model, the number of stress-relieving components is two.

[0021] In one embodiment of this utility model, the shaft of the pressure roller is fixed to the pressure roller mounting bracket by a snap ring.

[0022] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0023] The foil stress relief mechanism described in this utility model is a foil stress relief mechanism based on an adjustable pressure roller device. It is suitable for continuous production lines of precision foils such as lithium-ion battery electrode foils and electronic heat dissipation foils, and solves the problem of internal stress release generated during the rolling process.

[0024] The foil stress relief mechanism described in this utility model has the following advantages:

[0025] 1. Mechanical dimension: Construct a multi-degree-of-freedom adjustment mechanism to support independent adjustment of the pressure roller in three directions: horizontal, vertical, and lateral.

[0026] 2. Control Dimension: Develop a pressure-stress dynamic mapping model to achieve a pressure regulation response time of ≤1 second;

[0027] 3. Detection dimensions: Integrated online stress monitoring module, which feeds back data to the control system in real time to form a closed loop;

[0028] 4. Safety Dimension: The design incorporates a dual mechanism of mechanical limit and pneumatic overload protection to prevent abnormal equipment damage. Attached Figure Description

[0029] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0030] Figure 1 This is a schematic diagram of the foil stress relief mechanism in a preferred embodiment of the present invention. Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the foil stress relief mechanism in a preferred embodiment of the present invention. Figure 2 ;

[0032] Figure 3 This is a partial structural schematic diagram of the foil stress removal mechanism in a preferred embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the pressure roller in a preferred embodiment of the present invention.

[0034] Explanation of reference numerals in the accompanying drawings: Support frame 1, Stress relief assembly 2, Cylinder 21, Pressure roller 22, Snap ring 221, Pressure roller mounting bracket 23, Z-axis slider 231, Pressure regulating valve 24, Pressure bearing roller 3, X-axis moving assembly 4, X-axis mounting plate 41, Threaded hole one 411, X-axis guide rail 42, X-axis slider 43, X-axis moving bracket 44, X-axis limiting plate 45, Waist-shaped hole one 451, Y-axis moving assembly 5, Y-axis guide rail 51, Y-axis slider 52, Y-axis moving bracket 53, Z-axis guide rail 531, Threaded hole two 532, Y-axis limiting plate 54, Waist-shaped hole two 541. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0036] Reference Figure 1 , 2 As shown, the foil stress relief mechanism of this utility model includes: a support frame 1; and at least one stress relief component 2, which is mounted on the support frame 1. The stress relief component 2 eliminates rolling internal stress during relative movement with the foil. Preferably, the number of stress relief components 2 is two.

[0037] Reference Figure 3 As shown, the stress relief assembly 2 includes a cylinder 21, a pressure roller 22, a pressure roller mounting bracket 23, and a pressure regulating valve 24. The pressure roller mounting bracket 23 is connected to the output end of the cylinder 21. The pressure roller 22 is mounted on the pressure roller mounting bracket 23 via a rotating shaft. The cylinder 21 is connected to an air source via the pressure regulating valve 24. The cylinder 21 is used to drive the relative distance between the pressure roller 22 and the foil to adjust the pressure between the pressure roller 22 and the foil.

[0038] Cylinder 21 uses an SMC cylinder (63mm diameter, ≥50mm stroke) to drive the pressure roller to move vertically. The cylinder stroke is greater than 50mm to facilitate the belt threading operation.

[0039] The pressure regulating valve 24 adopts an SMC pressure regulating valve, which adjusts the air pressure of cylinder 21 in real time (0.1-0.6MPa). The pressure is fed back to the PLC system via the pressure sensor, forming a closed loop of "set pressure - real-time pressure - deviation correction".

[0040] In the above structure, the outer layer of the pressure roller 22 is made of rubber. The material of the outer layer of the pressure roller 22 is wear-resistant rubber NBR, the hardness of the wear-resistant rubber is 70±5, the width of the contact surface between the wear-resistant rubber and the foil is 30mm, and the wear-resistant rubber at the edge of the pressure roller 22 is treated with a rounded corner to avoid scratching the foil.

[0041] Reference Figure 1 , 2 As shown, the support frame 1 is equipped with a pressure roller 3, the axis of which is parallel to the axis of the pressure roller 22. The outer wall of the pressure roller 22 and the outer wall of the pressure roller 3 are used for the foil to pass through. A cylinder 21 drives the relative distance between the pressure roller 22 and the pressure roller 3, thereby achieving different pressures exerted by the pressure roller 22 on the foil passing through the pressure roller 22 and the pressure roller 3. When two stress-relieving components 2 are provided, the two stress-relieving components 2 are arranged along the axis of the pressure roller 3.

[0042] Reference Figure 3 As shown, the support frame 1 is provided with an X-axis moving assembly 4. The X-axis moving assembly 4 includes an X-axis mounting plate 41, an X-axis guide rail 42, an X-axis slider 43, an X-axis moving bracket 44, and an X-axis limiting plate 45. The X-axis mounting plate 41 is fixedly mounted on the support frame 1. The X-axis guide rail 42 is mounted on the X-axis mounting plate 41. The X-axis slider 43 is disposed on the X-axis guide rail 42 and can slide relative to the X-axis guide rail 42. The end of the X-axis moving bracket 44 is connected to the X-axis slider 43. The X-axis limiting plate 45 is mounted on the X-axis moving bracket 44 and is locked to the X-axis mounting plate 41 by fasteners to fix the X-axis moving bracket 44. The X-axis mounting plate 41 has multiple threaded holes 411 on the same straight line, and the X-axis limiting plate 45 has a waist-shaped hole 451. A locking screw is provided between the waist-shaped hole 451 and the threaded hole 411. In this way, the X-axis limiting plate 45 is fixed at a certain position on the X-axis mounting plate 41 by the locking screw, and the position of the pressure roller 22 in the X-axis direction can be adjusted.

[0043] Reference Figure 3 As shown, the X-axis moving bracket 44 is provided with a Y-axis moving assembly 5. The Y-axis moving assembly 5 includes a Y-axis guide rail 51, a Y-axis slider 52, and a Y-axis moving bracket 53. The Y-axis guide rail 51 is mounted on the X-axis moving bracket 44, and the Y-axis slider 52 is disposed on the Y-axis guide rail 51 and can slide relative to the Y-axis guide rail 51. The Y-axis guide rail 51 and the X-axis guide rail 42 are arranged perpendicularly, and the Y-axis guide rail 51 is parallel to the axis of the pressure roller 22. The Y-axis moving bracket 53 and the Y-axis slider 52 are connected, and the cylinder 21 is mounted on the Y-axis moving bracket 53. The Y-axis moving bracket 53 is connected to a Y-axis limiting plate 54. The Y-axis limiting plate 54 is provided with a second waist-shaped hole 541. The Y-axis moving bracket 53 is provided with a plurality of second threaded holes 532 on the same straight line. A locking screw is provided between the second waist-shaped hole 541 and the second threaded hole 532. The Y-axis moving bracket 53 is fixed to a certain position on the X-axis moving bracket 44 by the locking screw, so that the position of the pressure roller 22 in the Y-axis direction can be adjusted.

[0044] In the above structure, the Y-axis moving bracket 53 is provided with a Z-axis guide rail 531, and the pressure roller mounting bracket 23 is connected to a Z-axis slider 231. The Z-axis slider 231 is disposed on the Z-axis guide rail 531 and can slide relative to the Z-axis guide rail 531. The Z-axis guide rail 531 is perpendicular to the axial direction of the pressure roller 22.

[0045] The X-axis moving assembly 4 and the Y-axis moving assembly 5 work together with the cylinder 21, which can be driven along the Z-axis, to form a three-axis motion structure, thereby enabling more flexible adjustment of the position of the pressure roller 22. This facilitates the application of controllable pressure to the foil and utilizes the relative motion between the pressure roller 22 and the foil to eliminate rolling internal stress.

[0046] Reference Figure 4 As shown, the shaft of the pressure roller 22 is fixed to the pressure roller mounting bracket 23 by a retaining spring 221. The two ends of the mandrel of the pressure roller 22 are limited by the retaining spring 221. When replacing, the retaining spring 221 can be removed to pull out the mandrel and pressure roller as a whole.

[0047]

[0048] Efficiency improvement: Annual production capacity of a single production line can increase by 15% (due to reduced downtime).

[0049] Cost reduction: Annual maintenance costs are reduced by approximately 120,000 yuan, and energy consumption costs are reduced by 10%;

[0050] Quality improvement: The yield rate of foil materials increased from 92% to 98%, reducing waste losses by approximately RMB 80,000 per year.

[0051] Specific application scenario analysis: A certain aluminum foil production line has a foil thickness of 8-15μm, and it is necessary to remove longitudinal stress after rolling.

[0052] (1) Initial parameter settings:

[0053] Horizontal direction: front-to-back spacing of pressure rollers 1090mm, left-to-right spacing 506.5mm (matching foil width);

[0054] Vertical direction: The pressure roller is lowered to contact the foil material by the cylinder, and the pressure regulating valve is set to 0.3MPa (corresponding to a pressure of about 900N).

[0055] (2) Operation process:

[0056] The foil is pulled through the gap between the rollers by a roller press at a speed of 5 m / min. The rollers rotate accordingly, continuously applying pressure.

[0057] The stress value is monitored online (e.g., real-time feedback from a laser tension gauge). If the value exceeds the limit, the air pressure (±0.05MPa each time) or the horizontal spacing (±1mm each time) can be finely adjusted via the touch screen.

[0058] (3) Maintenance operations:

[0059] When the pressure roller rubber wears down to a contact width of <25mm, stop the machine, disconnect the air supply, remove the retaining ring groove, pull out the mandrel, and replace the pressure roller. The whole process takes about 5 minutes.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A foil stress relief mechanism, characterized in that, include: Support frame; At least one stress-relieving assembly is mounted on a support frame and the stress-relieving assembly eliminates rolling internal stress during relative movement with the foil. The stress relief assembly includes a cylinder, a pressure roller, a pressure roller mounting bracket, and a pressure regulating valve. The pressure roller mounting bracket is connected to the output end of the cylinder. The pressure roller is mounted on the pressure roller mounting bracket via a rotating shaft. The cylinder is connected to an air source via the pressure regulating valve. The cylinder is used to drive the pressure roller to the relative distance to the foil to adjust the pressure between the pressure roller and the foil.

2. The foil stress relief mechanism according to claim 1, characterized in that: The outer layer of the pressure roller is made of rubber.

3. The foil stress relief mechanism according to claim 1 or 2, characterized in that: The support frame is equipped with a pressure roller, the axis of which is parallel to the axis of the pressure roller, and the outer wall of the pressure roller and the outer wall of the pressure roller are used for passing foil.

4. The foil stress relief mechanism according to claim 1, characterized in that: The support frame is equipped with an X-axis moving assembly, which includes an X-axis mounting plate, an X-axis guide rail, an X-axis slider, an X-axis moving bracket, and an X-axis limiting plate. The X-axis mounting plate is fixedly mounted on the support frame, the X-axis guide rail is mounted on the X-axis mounting plate, the X-axis slider is disposed on the X-axis guide rail and can slide relative to the X-axis guide rail, the end of the X-axis moving bracket is connected to the X-axis slider, and the X-axis limiting plate is mounted on the X-axis moving bracket and is locked to the X-axis mounting plate by fasteners to fix the X-axis moving bracket.

5. The foil stress relief mechanism according to claim 4, characterized in that: The X-axis moving bracket is provided with a Y-axis moving assembly, which includes a Y-axis guide rail, a Y-axis slider, and a Y-axis moving bracket. The Y-axis guide rail is mounted on the X-axis moving bracket, and the Y-axis slider is disposed on the Y-axis guide rail and can slide relative to the Y-axis guide rail. The Y-axis moving bracket and the Y-axis slider are connected, and the cylinder is mounted on the Y-axis moving bracket.

6. The foil stress relief mechanism according to claim 5, characterized in that: The Y-axis guide rail and the X-axis guide rail are set perpendicularly, and the Y-axis guide rail is parallel to the axis of the pressure roller.

7. The foil stress relief mechanism according to claim 5, characterized in that: The Y-axis moving bracket is provided with a Z-axis guide rail, and the pressure roller mounting bracket is connected to a Z-axis slider. The Z-axis slider is set on the Z-axis guide rail and can slide relative to the Z-axis guide rail.

8. The foil stress relief mechanism according to claim 7, characterized in that: The Z-axis guide rail is perpendicular to the axis of the pressure roller.

9. The foil stress relief mechanism according to claim 1, characterized in that: The number of stress-relieving components is two.

10. The foil stress relief mechanism according to claim 1, characterized in that: The shaft of the pressure roller is fixed to the pressure roller mounting bracket by a snap ring.

Images