Ultra-thin metal sheet machining production line and machining method

Abstract

This application pertains to the field of processing and production technology, specifically addressing an ultra-thin metal sheet processing production line and method. The production line comprises a first rack, a first reversing mechanism, a positioning mechanism, a processing mechanism, a first drawing mechanism, a second reversing mechanism, a second drawing mechanism, and a second rack. Metal sheets pass through a through-slot equipped with a processing window where the tool section is installed. The processing window facilitates tool installation precision detection and distance control between the tool and the workpiece. Simultaneously, the window's constraints and die clamping effectively prevent metal sheet displacement caused by processing vibrations, thereby enhancing processing accuracy and yield. This achieves precise metal sheet cutting while vertically arranged sheets allow processed metal chips to fall downward for easy removal. The metal sheets in this application may also be sheet materials stored in rolled form.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ultra-thin metal sheet, particularly to a processing production line and processing method of ultra-thin metal sheet.Description of the Related Art

[0002] Traditional steel processes often use "thickness, toughness, heavy industry" as quality standards, but in order to be suitable for high-precision industries, the field of ultra-thin metal sheet technology is a competitive area for related enterprises.

[0003] The concept of ultra-thin metal sheets originates from ultra-thin precision steel strips. Unlike conventional stainless steel sheets, steel strips with thicknesses ≤0.3mm and as thin as 0.01mm are classified as ultra-thin precision steel strips, representing a specialized field in stainless steel technology. The 'ultra-thin' definition for metal sheets follows this classification.

[0004] Reprocessing ultra-thin metal sheets is inherently a highly challenging technique. This is because the processing of such materials presents the following technical obstacles: Traditional methods, such as screw locking and pressure plate fixing, cannot be used. When the metal sheet is processed (milling or grinding), vibration will be generated. Due to the ultra-thin characteristics of the metal sheet, the vibration will directly lead to the failure of processing.

[0005] The extreme thinness of ultra-thin metal sheets poses significant challenges in manufacturing irregularly shaped sheets with non-uniform thickness and producing tubes from them. In traditional stainless steel tube manufacturing, sheets are first cut to required widths before undergoing coiling and welding processes. Conventional methods yield relatively thick tubes with diameters peaking at approximately 2.00mm-4.00mm. To achieve even finer-diameter tubes, multiple drawing processes are required. During these operations, the tube's diameter narrows while wall thickness diminishes. However, each drawing stage's difficulty correlates with the ratio of predrawing to post-drawing wall thickness. As the number of drawing stages increases, the process becomes exponentially more complex, with tubes becoming prone to fracture during stretching. This makes it impossible to produce ultra-thin yet structurally robust tubes.

[0006] The Chinese patent CN219052473U, filed by the applicant on October 13,2022, describes a production line for ultra-fine seamless metal tubes. The system comprises: a rack, drawing mechanism, positioning mechanism, pre-pressing mechanism, second positioning mechanism, forming mechanism, third positioning mechanism, and welding mechanism. This process utilizes coiled metal sheets as raw materials, where the ultra-thin sheets have irregular shapes. The sheet thickness ranges from 0.02mm to 0.3mm at the thinnest end and 0.05mm to 0.5mm at the thickest end, with 0.02mm-0.2mm being the preferred thickness. A uniform thickness transition zone exists between the thickest and thinnest ends. The manufacturing equipment requires high precision, and the technology remains unlocalized domestically. Although foreign manufacturers can produce irregularly shaped metal sheets, their production processes are not disclosed, and the processing generates difficult-to-dispose chips that may damage machinery.

[0007] Therefore, the existing ultra-thin metal sheet processing production line needs to be improved.SUMMARY OF INVENTION

[0008] In order to solve the above technical problems, the purpose of the present application is to provide a super thin sheet processing production line, which can be used to process the metal sheet described in the background , and can achieve high precision.

[0009] The technical solution adopted in this application to solve the problem is: an ultra-thin metal sheet processing production line, characterized by comprising a first rack, a positioning mechanism, a processing mechanism, and a second rack. The first rack is used to output flat-lying metal sheets. The positioning mechanism receives metal sheets and performs positioning. The processing mechanism includes a vertically arranged mold with a left-right extending channel inside, which receives metal sheets from the positioning mechanism and performs positioning. The mold features a groove near the through-slot area with a processing window connected to the channel. The processing mechanism also includes a tool drive mechanism and tools located in the groove, with part of the tools positioned in the processing window for processing metal sheets. The second rack stores metal sheets.

[0010] As a further improvement , the production line also includes a first reversing mechanism, a first drawing mechanism, a second reversing mechanism, and a second drawing mechanism. The first reversing mechanism receives metal sheets discharged from the first rack and rotates them vertically. The positioning mechanism receives metal sheets from the first reversing mechanism and positions them. The channel is a through-slot extending in left-right direction, while the groove features a U-shaped slot. The first drawing mechanism receives metal sheets from the processing mechanism and pulls them to the right. The second reversing mechanism receives metal sheets from the first drawing mechanism and rotates them horizontally. The second drawing mechanism receives metal sheets from the second reversing mechanism and pulls them to the right. The second rack stores metal sheets discharged from the second drawing mechanism.

[0011] In a form shown, both the first and second reversing mechanisms comprise a main reversing mechanism and a secondary reversing mechanism. The main reversing mechanism consists of a pair of horizontally arranged roller sets stacked vertically, while the secondary reversing mechanism features a pair of inclined roller sets positioned at an angle. Additionally, the first reversing mechanism includes a pair of vertically arranged roller sets arranged front-to-back, which are specifically designed for vertical conveying of metal sheet materials.

[0012] In a form shown, the system also includes a leveling mechanism and a detection mechanism. The leveling mechanism, positioned between the positioning mechanism and the mold, receives metal sheets from the positioning mechanism and performs leveling. The detection mechanism, located between the mold and the first material drawing mechanism, receives metal sheets discharged from the mold and conducts thickness detection.

[0013] In a form shown, it also includes a laser embossing mechanism, which is arranged between the second reversing mechanism and the second rack. The laser embossing mechanism is used to receive the metal sheet output from the second reversing mechanism and to perform laser wrinkle on the metal sheet.

[0014] In a form shown, it also includes a controller, and the processing mechanism, the first drawing mechanism, the second drawing mechanism and the laser embossing mechanism are all electrically connected to the controller.

[0015] As a further improvement of the aforementioned technical solution, the mold comprises a pressing plate, a base plate, and a mold seat arranged sequentially from front to back. The pressing plate is equipped with an adjusting mechanism that drives it toward the base plate. A through-slot is provided on the front side wall of the base plate, while a U-shaped groove and a machining window are set on the pressing plate. The tool is vertically arranged in spindle-shaped or gourd-shaped configurations.

[0016] In a form shown, the base plate is provided with a blind hole, the blind hole is located on the side of the through slot away from the tool, the blind hole is provided with a ventilation hole, the ventilation hole communicates with the through slot; it also includes a negative pressure device, the suction port of the negative pressure device is arranged at the opening of the blind hole.

[0017] The embodiments of the present application also provide a processing method of ultra-thin metal sheet, based on the processing production line of ultra-thin sheet described in any of the embodiments above, which includes the following steps: S1, the first rack unwinds the metal sheet; S2, the first reversing mechanism rotates the metal sheet from horizontal to vertical position; S3, the positioning mechanism limits the upper and lower edges of the metal sheet; S4, the correction mechanism corrects the front and rear side walls of the metal sheet; S5. The mold performs positioning and compression on the metal sheet; S6. the tool cuts the metal sheet to form a groove area on the metal sheet; S8. the first drawing mechanism pulls the metal sheet to the right; S9.The second reversing mechanism twists the metal sheet from vertical to horizontal orientation; S11. the second drawing mechanism pulls the metal sheet to the right; S12. the second rack winds the metal sheet into a drum shape.

[0018] In a form shown, S7 is further included between S6 and S8 to detect the depth of the groove area.

[0019] In a form shown, there is also S10 between S9 and S11, which is to laser emboss the metal sheet.

[0020] The beneficial effect of the present application is that the sheet passes through the through slot, and the processing window is arranged at the through slot, and part of the tools positioned in the processing window Due to the restriction of the processing window, it is easy to detect the installation accuracy of the tool and control the distance between the tool and the processed sheet.

[0021] The window mechanism and mould effectively prevent metal sheet material from shifting during ultra-thin sheet processing. This design prevents sheet material displacement caused by vibration during machining, significantly improving processing accuracy and yield rates while enabling precise cutting. Additionally, the vertically arranged metal sheets allow processed metal chips to fall downward, facilitating easy removal of debris.

[0022] The metal sheet of the present application may also be a roll of sheet but stored in a roll.BRIEF DESCRIPTION OF THE FIGURES

[0023] The application will be described in more detail below with reference to the drawings and embodiments. FIG. 1 is a front view of a super thin sheet processing production line of the present application; FIG. 2 is a front view of the processing mechanism of the present application; FIG. 3 is a top view of the mold of the present application; FIG. 4 shows a magnified view of section A in Figure 3. FIG. 5 is a right view of the mold of the present application; FIG. 6 is a front view of the first reversing mechanism of the present application; FIG. 7 is a front view of the second reversing mechanism of the present application; FIG. 8 is a right view of the primary reversing mechanism of the present application; FIG. 9 is a right view of the secondary reversing mechanism of the present application; FIG. 10 is a front view of the positioning mechanism of the present application; Figure 11 is a top view of the leveling mechanism of the present application; Figure 12 is a right view of the detection mechanism of the present application; Figure 13 is a right view of the first and second drawing mechanism of the present application; FIG. 14 is a front view of the laser embossing mechanism of the present application; Figure 15 is a right view of the laser embossing mechanism of the present application; FIG. 16 is a schematic diagram of a tool of the present application in one embodiment thereof; FIG. 17 is a schematic diagram of another embodiment of the tool of the present application; FIG. 18 is a schematic diagram of the metal sheet processed in the present application.

[0024] Diagram: 1-first rack, 2-First reversing mechanism, 2A-Second reversing mechanism, 21-Primary reversing mechanism, 211-Primary Directional Platform, 212-Primary Mounting Bracket, 22-Secondary reversing mechanism, 221-Secondary Directional Platform, 222-Mounting Section, 223-Secondary Mounting Bracket, 23A-horizontal roller set, 23B-Inclined Roller set, 23C-Vertical Roller Group, 3-Positioning Mechanism, 31-Positioning Platform, 32-Positioning Roller, 4-Processing Mechanism, 41-Mold, 411-Base Plate, 412-Press Plate, 413-Mold Base, 414-Slotted Hole, 415-Air Vent, 416-Adjustment Mechanism, 417-Fixing Plate, 418-Moving Plate, 418A-Spring, 419-Handwheel, 419A-Thread Adjustment Post, 42-Through Slot, 43-U-Shaped Slot, 44-Processing Window, 45-Tool, 5-First Drawing Mechanism, 51-Drawing Platform, 52-Drawing Roller, 53-Drawing Power mechanism, 7-Second Drawing Mechanism, 8-Second rack, 9-leveling mechanism, 91-Aligning Bracket, 92-Aligning Roller, 10-Detection Mechanism, 101-Detection Platform, 102-Detection Bracket, 103-Micrometer, 104-Notch, 11-Metal Sheet, 111-Notch Area, 12-Negative Pressure Device, 13-Laser Embossing Mechanism, 131-Laser Embossing Unit, 132-Laser Base, 133-Laser Press Plate, 134-Laser Bracket, 135-Positioning Slot, 136-Laser Processing Window, 14-controller.DETAILED DESCRIPTION

[0025] This section will provide a detailed description of the specific embodiments of the present application. The preferred embodiments are illustrated in the accompanying drawings, which serve to visually supplement the textual descriptions in the specification. These diagrams enable readers to intuitively grasp each technical feature and the overall technical solution of the application. However, they should not be construed as limiting the scope of protection of the present application.

[0026] In the description of this application, it should be understood that directional terms such as "up," "down," "front," "back," "left," and "right" refer to the positional relationships illustrated in the accompanying drawings. These terms are provided solely for clarity and simplification of the description, not to indicate or imply that the devices or components must adopt specific orientations, configurations, or operational modes. Therefore, such directional terms should not be construed as limiting the scope of this application.

[0027] In the description of this application, the term "several" refers to one or more, while "multiple" denotes two or more. Terms such as greater than, less than, or exceeding are interpreted as excluding the exact number, whereas expressions like above, below, or within include the exact number. The use of terms like "first" and "second" in the description is solely for distinguishing technical features and should not be construed as indicating relative importance, implying the quantity of specified features, or suggesting their hierarchical order. Unless otherwise expressly limited, terms such as "configure," "install," and "connect" shall be broadly interpreted. Technical personnel in the relevant field may reasonably determine the specific meanings of these terms in this application based on the technical solution's content. Referring to Figure 1-18, it is an embodiment of a processing line for ultra-thin sheet material of the present application;

[0028] As shown in Figure 1, the production line is equipped with: a first rack 1, a first reversing mechanism 2, a positioning mechanism 3, a processing mechanism 4, a first drawing mechanism 5, a second reversing mechanism 2A, a second drawing mechanism 7, a second rack 8, a leveling mechanism 9, a detection mechanism 10, a vacuum chamber 12, a laser embossing mechanism 13, and a controller 14.

[0029] Referring to FIG. 2 and FIG. 4, the mold 41 is provided with a through slot 42 extending along the left and right direction, the through slot 42 is used to receive the metal sheet 11 output from the positioning mechanism 3 shown in FIG. 1 and to position the metal sheet 11;

[0030] As shown in Figures 3 and 5, mold 41 consists of three sequentially arranged components: pressing plate 412, base plate 411, and mold base 413. The pressing plate 412 features an adjustment mechanism 416 comprising a fixed plate 417, movable plate 418, and handwheel 419. The movable plate 418 is positioned at a distance from the front side of the pressing plate 412, while the fixed plate 417 is mounted on the front side of the movable plate 418. The handwheel 419 is fixedly connected to a threaded adjustment column 419A. A nut is embedded in the fixed plate 417, which drives the threaded adjustment column 419A. The threaded adjustment column 419A is rotatably connected to the movable plate 418. A spring 418A is installed between the movable plate 418 and the pressing plate 412.

[0031] As shown in Figure 4, the pressure plate 412 features a U-shaped groove 43. Adjacent to the through-slot 42, this groove contains a machining window 44 that communicates with the through-slot42. The tool 45 is positioned within the U-shaped groove, with part of it extending into the machining window to process the metal sheet 11. The base plate 411 has a blind hole 414 in its center, located on the side of the through-slot opposite to the tool. This blind hole is equipped with an air vent 415 that connects to the through-slot, while the suction port of the vacuum chamber 12 is installed at the blind hole 414.

[0032] As shown in Figure 6, the first reversing mechanism 2 is sequentially arranged from left to right with the main reversing mechanism 21, the secondary reversing mechanism 22, and the vertical roller group 23C.

[0033] As shown in Figure 7, the second reversing mechanism 2A consists of a secondary reversing mechanism 22 and a primary reversing mechanism 21 arranged sequentially from left to right.

[0034] Referring to Figure 8, the main reversing mechanism 21 comprises a main reversing platform 211 and a main mounting bracket 212 mounted on the platform. The bracket features two vertically arranged horizontal roller sets 23A, with a designated gap between them.

[0035] As shown in Figure 9, the auxiliary reversing platform 221 features an installation section 222 inclined at 45 degrees forward (or backward). This section supports a perpendicular auxiliary mounting bracket 223, which houses two parallel rows of inclined roller assemblies 23B. The roller assemblies are arranged in a staggered configuration with a designated gap between the upper and lower rows. Referring to Figure 10, the positioning mechanism 3 includes a positioning platform 31 and a plurality of positioning rollers 32 arranged along the front and rear direction, the upper and lower parts of the positioning platform 31 are provided with positioning rollers 32; Referring to Figure 11, the leveling mechanism 9 includes a leveling bracket 91 and two rows of vertically arranged leveling rollers 92 on the leveling bracket, and there is a certain gap between the two rows of leveling rollers 92; Referring to Figure 12, the testing device 10 comprises a testing platform 101, a testing bracket 102, and a micrometer 103. The testing bracket 102 is mounted on the testing platform 101, which features a groove 104 for the metal sheet 11 to pass through. The micrometer 103 is installed on the testing bracket 102, with its measuring end precisely aligned with the groove 104.

[0036] As shown in Figure 13, both the first and second material drawing mechanisms (5 and 7) consist of a drawing platform 51 with two vertically arranged rows of drawing rollers 52 positioned front and back. The drawing platform 51 is equipped with a Drawing Power mechanism 53, and the two rows of drawing rollers 52 are spaced apart with a certain gap, while the drawing rollers 52 are transmission-connected to the Drawing Power mechanism 53.

[0037] As shown in Figures 14 and 15, the laser wrinkle treatment unit 13 consists of four components: a laser wrinkle applicator 131, a laser base 132, a laser pressure plate 133, and a laser bracket 134. The laser base 132 features a positioning groove 135 at its upper section, which secures the metal sheet 11 in place. Positioned above the base is the laser pressure plate 133, equipped with a laser processing window 136 directly above the groove. The laser bracket 134 supports the applicator 131, whose laser head is precisely aligned with the processing window 136.

[0038] As shown in Figure 16, the tool 31 is shaped like a gourd; as shown in Figure 17, the tool 31 is spindle-shaped.

[0039] As shown in Figure 18, the metal sheet 11 is machined by the tool 45 to form the groove area 111. Usage effect: Metal sheet 11 is fed from the first rack 1 to the main reversing mechanism 21. It passes horizontally through the mechanism and exits to the right. When passing through the Secondary reversing mechanism 22, the metal sheet is tilted forward (or backward) at a 45-degree angle. Finally, it is rotated vertically as it passes through the vertical roller group 23C. The upper and lower edges of the metal sheet 11 are respectively slidably connected with the positioning roller 32 to avoid the deviation of the metal sheet 11. Then, the metal sheet 11 passes through the leveling mechanism 9, and the front and back of the metal sheet 11 are slidably connected with the leveling roller 92 to avoid the unevenness of the metal sheet 11; When the metal sheet 11 slides to the right to the through slot 42, it is limited and squeezed by the pressure plate 412, which can prevent the metal sheet 11 from separating from the through slot 42 and prevent the metal sheet 11 from vibrating; After the negative pressure device 12 is started, the air in the blind hole 414 is sucked out to form a negative pressure in the blind hole 414. The metal sheet 11 will be adsorbed at the ventilation hole 415. The tool 45 is inserted into the U-shaped groove 43, and the tool 45 partially passes through the processing window 44 to process the metal sheet 11; Subsequently, the metal sheet 11 is pulled to the right by the first drawing mechanism 5 to the groove 104, and the detection head of the micrometer 103 will detect the depth of the groove area 111; When metal sheet 11 is discharged to the secondary deflection mechanism 22 on the second deflection mechanism 2A, it is first rotated from vertical to a 45-degree forward (or backward) tilt. Subsequently, the metal sheet 11 is discharged to the main deflection mechanism 21 and rotated to a horizontal position.

[0040] Subsequently, the metal sheet 11 is pulled to the right by the second drawing mechanism 7 to the positioning slot 135, where the laser embossing unit 131 applies laser embossing to the metal sheet 11. Finally, the metal sheet 11 is discharged to the second rack 6 and wound onto it.

[0041] The embodiments of the present application also provide a processing method of ultra-thin metal sheet, based on the processing production line of ultra-thin sheet described in any of the embodiments above, which includes the following steps: S1, the first rack unwinds the metal sheet; S2, the first reversing mechanism rotates the metal sheet from horizontal to vertical position; S3, the positioning mechanism limits the upper and lower edges of the metal sheet; S4, the correction mechanism corrects the front and rear side walls of the metal sheet; S5. The mold performs positioning and compression on the metal sheet; S6, the tool cuts the metal sheet to form a groove area on the metal sheet; S8, the first drawing mechanism pulls the metal sheet to the right; S9. The second reversing mechanism twists the metal sheet from vertical to horizontal orientation; S11. The second drawing mechanism pulls the metal sheet to the right; S12, the second rack winds the metal sheet into a drum shape.

[0042] In a form shown, S7 is further included between S6 and S8 to detect the depth of the groove area.

[0043] In a form shown, there is also S10 between S9 and S11, which is to laser emboss the metal sheet.

[0044] The above constitutes the preferred embodiments of the present application and does not limit its patent scope. Any equivalent structural modifications made under the application concept, utilizing the content of the specification and drawings, or any direct or indirect applications in other related technical fields shall be included within the patent protection scope of this application. For example, replacing the connection device in the aforementioned embodiments with a lock edge unit, etc.

Claims

1. A production line for ultra-thin metal sheet processing, wherein: the production line comprises a first rack (1), a positioning mechanism (3), a processing mechanism (4) and a second rack (8); The first rack (1) is used for outputting a laid metal sheet (11); The positioning mechanism (3) is used to receive the metal sheet (11) and to position the metal sheet (11); The processing mechanism (4) comprises a vertically arranged mold (41) containing a left-right extending channel witch receives and positions metal sheets (11) discharged from the positioning mechanism (3), the mold (41) features a groove with a processing window (44) witch been set near the through-slot (42 ) and communicates with the channel. The machining mechanism (4) further includes a tool driving mechanism and a tool (45), the tool (45) is located in the groove, the tool (45) is partially arranged in the machining window (44), the tool (45) is used to process the metal sheet (11) in the machining window (44); The second rack (8) is used to store the metal sheet (11).

2. A production line for ultra-thin metal sheet processing according to claim 1, wherein: the production line further comprises a first reversing mechanism (2), a first drawing mechanism (5), a second reversing mechanism (2A) and a second drawing mechanism (7); The first reversing mechanism (2) is used to receive the metal sheet (11) output from the first rack (1) and twist the metal sheet (11) to the vertical direction; The positioning mechanism (3) is used to receive the metal sheet (11) output from the first reversing mechanism (2) and to position the metal sheet (11); The channel is a through slot (42) extending along the left and right direction, and the groove is a U-shaped groove (43); The first drawing mechanism (5) is used to receive the metal sheet (11) output from the processing mechanism (4) and pull the metal sheet (11) to the right; The second reversing mechanism (2A) is configured to receive the metal sheet (11) output from the first drawing mechanism (5) and twist the metal sheet (11) to a horizontal direction; The second drawing mechanism (7) is configured to receive the metal sheet (11) output from the second reversing mechanism (2A) and to draw the metal sheet (11) to the right; The second rack (8) is used to store the metal sheet (11) output from the second drawing mechanism (7).

3. The ultra-thin metal sheet processing production line as claimed in claim 2, wherein: both the first reversing mechanism (2) and the second reversing mechanism (2A) comprise a main reversing mechanism (21) and a secondary reversing mechanism (22), the main reversing mechanism (21) includes a pair of vertically arranged horizontal roller sets (23A), while the secondary reversing mechanism (22) consists of a pair of inclined roller sets (23B). The first reversing mechanism (2) further includes a pair of vertically arranged vertically arranged roller sets (23C) arranged front and rear, the vertically arranged roller sets (23C) being used for vertically conveying the metal sheet (11).

4. A ultra-thin metal sheet processing production line according to claim 3, wherein: It also includes a leveling mechanism (9) and a detection mechanism (10), the leveling mechanism (9) is arranged between the positioning mechanism (3) and the mold (8), the leveling mechanism (9) is used to receive and level the metal sheet (11) output from the positioning mechanism (2) ; The detection mechanism (10) is arranged between the mold (41) and the first drawing mechanism (5), and the detection mechanism (10) is used to receive and detect the thickness of the metal sheet (11) output from the mold (41) .

5. A super thin metal sheet processing production line according to claim 4, wherein: It also includes a laser embossing mechanism (13), which is arranged between the second reversing mechanism (2A) and the second rack (8), the laser embossing mechanism (13) is used to receive the metal sheet (11) output from the second reversing mechanism (2A) and emboss the metal sheet (11) with laser.

6. A super thin metal sheet processing production line according to claim 5, wherein: It also includes a controller (14), to which the processing mechanism (4), the first drawing mechanism (5), the second drawing mechanism (7) and the laser embossing mechanism (13) are all electrically connected.

7. A production line for ultra-thin metal sheet processing as claimed in claim 2, wherein: the mold (41) comprises a pressing plate (412), a base plate (411), and a mold seat (413) witch are arranged sequentially from front to back, the pressing plate (412) is equipped with an adjusting mechanism (416) that drives it toward the base plate (411), the through-slot (42) is located on the front side wall of the base plate (411), while the U-shaped groove (43) and processing window (44) are respectively mounted on the pressing plate (412); the tool (45) is vertically arranged in spindle or gourd shape.

8. A production line for ultra-thin metal sheet processing as claimed in claim 7, wherein: the base plate (411) is provided with a blind hole (414) located on the side of the through slot (42) opposite to the tool (45), and the blind hole (414) is provided with a ventilation hole (415) communicating with the through slot (42); It also includes a negative pressure device (12), the suction port of which is arranged at the opening of the blind hole (414).

9. A method for processing an ultra-thin metal sheet, based on the ultra-thin sheet processing production line as described in any one of claims 1-8, comprising the following steps: S1, the first rack (1) unwinds the metal sheet (11); S2, the first reversing mechanism (2) rotates the metal sheet (11) from horizontal to vertical position; S3, the positioning mechanism (3) limits the upper and lower edges of the metal sheet (11); S4. The correction mechanism (9) calibrates the front and rear side walls of the metal sheet (11); S5. The mold (41) performs positioning and compression on the metal sheet (11). S6. The tool (45) cuts the metal sheet (11) to form a groove area (111) on the metal sheet (11); S8. The first drawing mechanism (5) pulls the metal sheet (11) to the right; S9. The second reversing mechanism (6) rotates the metal sheet (11) from vertical to horizontal orientation; S11. The second drawing mechanism (7) pulls the metal sheet (11) to the right; S12, the second rack (8) rolls the metal sheet (11) into a drum shape.

10. A method for processing an ultra-thin metal sheet according to claim 9, wherein: between S6 and S8, S7 is further included, which is to detect the depth of the groove area (111).

11. A method for processing an ultra-thin metal sheet as claimed in claim 10, wherein: between S9 and S11, S10 is further included, comprising laser texturing of the metal sheet (11).

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