Precise stainless steel foil strip packaging method
By using a multi-layer wrapping and bundling structure, the problem of damage to precision stainless steel foil strips during transportation is solved, achieving all-round protection and improving the yield rate.
Patent Information
- Application Number
- CN202511413132.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2025-12-12
AI Technical Summary
Existing technologies are insufficient to effectively protect precision stainless steel foil strips from surface scratches, dents, creases, and edge damage during packaging and transportation, leading to increased packaging difficulty and costs.
The steel coil is protected by a multi-layered wrapping and binding structure, including a combination of PE wrapping film, pearl cotton and carbon steel straps, combined with a wooden frame and binding straps, forming all-round protection to ensure the stability and protection of the steel coil.
It achieves all-round protection for precision stainless steel foil strips during transportation, avoids damage, and improves the yield.
Smart Images
Figure CN121106905A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of stainless steel strip packaging and transportation, and particularly relates to a packaging method of precise stainless steel foil strip. BACKGROUND
[0002] The precise stainless steel foil strip (stainless steel strip with a thickness of less than or equal to 0.05 mm) is a key basic material for high-end manufacturing industry, and has the characteristics of extremely thin thickness, high strength, corrosion resistance, and good flexibility. This kind of material is widely used in the fields of aviation, new energy batteries, precise electronic components, medical devices, and other fields with extremely high requirements for material performance. Since the thickness of the precise stainless steel foil strip is less than 1 / 6 of the diameter of a hair (the thinnest can reach 0.01 mm), the strip is prone to surface scratches, indentation, creases, edge damage, and corrosion during packaging and transportation, which increases the packaging difficulty and cost.
[0003] In the existing industry, the horizontal and vertical bundling of steel coils is usually performed by using pneumatic plastic steel belts. However, the force of the pneumatic packing gun is difficult to control, and the steel belt may be damaged if it is pulled too tightly. Therefore, the ordinary packaging method cannot be applied to the packaging of the precise stainless steel foil strip. SUMMARY
[0004] The purpose of the present application is to provide a packaging method for precise stainless steel foil strip, which can effectively protect the strip during transportation.
[0005] To achieve this purpose, the present application adopts the following technical solutions:
[0006] A packaging method for precise stainless steel foil strip, comprising:
[0007] Step one, winding the finished stainless steel strip on a seamless steel sleeve to form a steel coil;
[0008] Step two, using a PE wrapping film to wrap the steel coil in three dimensions, then using a first pearl cotton and a carbon steel belt to wrap the circumferential surface of the steel coil in sequence, and then using a first binding belt to tighten the carbon steel belt in the circumferential direction to form a half-wrapped piece;
[0009] Step three, placing the half-wrapped piece on a wooden frame, and keeping the axial direction of the steel coil horizontal;
[0010] Step four, embedding a carbon steel sheath at both ends of the half-wrapped piece to form a fully wrapped piece;
[0011] Step five, using a second binding belt to tighten the fully wrapped piece in the axial direction, and fixing the fully wrapped piece to the wooden frame;
[0012] Step six, covering the fully wrapped piece with a wooden box, and fixing the wooden box to the wooden frame.
[0013] As an optional solution, the thickness of the finished stainless steel strip is less than or equal to 0.05 mm; the width of the PE wrapping film is 125-500 mm, and the thickness is 20-25 microns; the thickness of the first pearl cotton is 0.5-1.0 cm; the grade of the carbon steel strip is SPCC, and the thickness is 0.25-0.35 mm; the first bundling belt is a self-locking bundling belt made of nylon, and the width of the first bundling belt is 10 mm, and the length is 1200-1500 mm.
[0014] As an optional solution, the three first bundling belts are uniformly and spacedly arranged along the axial direction of the steel coil.
[0015] As an optional solution, the wooden frame comprises two crossbars arranged in parallel with the axial direction of the steel coil, and the half-wrapping piece is supported and limited by the two crossbars; a plurality of spacedly arranged battens are fixed below the two crossbars, and a wooden strip for fixing the wooden box is arranged on the outer side of each crossbar.
[0016] As an optional solution, a bevel is arranged on the opposite surface of each crossbar and in contact with the surface of the half-wrapping piece; a felt and a second pearl cotton are sequentially arranged on the bevel.
[0017] As an optional solution, the thickness of the felt is 1-1.5 cm, and the thickness of the second pearl cotton is 2-2.5 cm.
[0018] As an optional solution, a pearl cotton lining is arranged between the inner side of the carbon steel sheath and the end of the half-wrapping piece.
[0019] As an optional solution, a pearl cotton corner protector is arranged on the binding position of the second bundling belt on the round corner of the full-wrapping piece, and the surface of the pearl cotton corner protector is covered with an L-shaped plastic corner protector.
[0020] As an optional solution, the width of the pearl cotton corner protector is 20-40 mm, and the thickness is 1 cm; the width of the L-shaped plastic corner protector is 20-40 mm, and the thickness is 3 mm.
[0021] As an optional solution, the second bundling belt is a self-locking bundling belt made of nylon, and the width of the second bundling belt is 20 mm, and the length is 1200-1500 mm.
[0022] The beneficial effects of the present application are as follows:
[0023] The packaging method of the precision stainless steel foil strip is designed with a multi-layer wrapping and bundling structure for the easy damage of the ultra-thin stainless steel strip, realizes omnidirectional protection and fastening, and ensures the ultra-thin stainless steel strip to be undamaged in the process of packaging and transportation as much as possible, thereby improving the use yield. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1It is the structural schematic view of the half-wrapping piece in the packaging method of the precision stainless steel foil strip provided by the embodiment of the application.
[0025] Figure 2 It is the schematic view of the half-wrapping piece placed on the wooden frame in the packaging method of the precision stainless steel foil strip provided by the embodiment of the application.
[0026] Figure 3 It is Figure 2 The enlarged view at A in FIG.
[0027] Figure 4 It is the first view angle schematic view of the second binding band tightly wrapping the full-wrapping piece in the packaging method of the precision stainless steel foil strip provided by the embodiment of the application.
[0028] Figure 5 It is the second view angle schematic view of the second binding band tightly wrapping the full-wrapping piece in the packaging method of the precision stainless steel foil strip provided by the embodiment of the application.
[0029] Figure 6 It is Figure 5 The enlarged view at B in FIG.
[0030] In the drawings:
[0031] 1, seamless steel sleeve; 2, steel coil; 3, PE winding film; 4, first pearl cotton; 5, carbon steel belt; 6, first binding band; 7, cross beam; 8, cushion; 9, wooden strip; 10, inclined surface; 11, felt; 12, second pearl cotton; 13, second binding band; 14, pearl cotton corner guard; 15, L-shaped plastic corner guard. DETAILED DESCRIPTION
[0032] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar parts or parts having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0033] In the description of the present application, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0034] In the description of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first feature and the second feature are in direct contact, or that the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.
[0035] The technical scheme of the present application will be further illustrated below in conjunction with the drawings and through specific embodiments.
[0036] In view of the problem that the stainless steel strip with a thickness of less than or equal to 0.05 mm is easy to be damaged, the present application provides a packaging method for a precision stainless steel foil strip, comprising the following steps:
[0037] Step one, winding the finished stainless steel strip on a seamless steel sleeve 1 to form a steel roll 2.
[0038] The seamless steel sleeve 1 is hollow, and the surface of the seamless steel sleeve 1 is polished, so that the winding can be completed in cooperation with the unloading process of the stainless steel strip production line.
[0039] Step two, three-dimensionally winding the steel roll 2 with a PE wrapping film 3, and then wrapping the circumferential surface of the steel roll 2 with a first pearl cotton 4 and a carbon steel strip 5 in sequence, and then tightening the carbon steel strip 5 in the circumferential direction with a first bundling belt 6 to form a semi-wrapped piece, as shown in Figure 1 .
[0040] The thickness of the finished stainless steel strip is less than or equal to 0.05 mm, and the ultra-thin thickness makes it more susceptible to damage; the width of the PE wrapping film 3 is 125 mm to 500 mm, and the thickness is 20 to 25 microns, forming the first layer of protection for the steel roll 2; the thickness of the first pearl cotton 4 is 0.5 cm to 1.0 cm, forming the second layer of protection for the steel roll 2; the grade of the carbon steel strip 5 is SPCC, and the thickness is 0.25 mm to 0.35 mm, forming the third layer of protection for the steel roll 2.
[0041] The first bundling belt 6 is a self-locking bundling belt made of nylon, and the width of the first bundling belt 6 is 10 mm and the length is 1200 mm to 1500 mm. The self-locking bundling belt is a prior art that can automatically lock after being tightened, avoiding the risk of loosening and ensuring the long-term stability of the fixing effect. In this embodiment, three first bundling belts 6 are evenly spaced along the axial direction of the steel roll 2, and the two ends and the middle position of the steel roll 2 are bundled to prevent the steel roll 2 from spreading out.
[0042] Step three, place the half-wrapped piece on the wooden frame, and the axial direction of the steel coil 2 is kept horizontal.
[0043] As shown in Figure 2 , the wooden frame here includes two crosspieces 7 arranged in parallel with the axial direction of the steel coil 2, and the half-wrapped piece is supported and limited by the two crosspieces 7. A plurality of spacer blocks 8 are fixed below the two crosspieces 7, and wood strips 9 are arranged on the outer sides of the two crosspieces 7.
[0044] The wooden frame is used to fix the half-wrapped piece, and facilitates the handling of the half-wrapped piece by cranes, forklifts and the like. The two crosspieces 7 are used to limit the half-wrapped piece, so that the half-wrapped piece remains in a lying posture. Specifically, inclined surfaces 10 are arranged on the opposite faces of the two crosspieces 7 to contact the surface of the half-wrapped piece. Felt 11 and second pearl wool 12 are sequentially arranged on the inclined surfaces 10, so as to reduce the contact damage to the internal steel coil 2, as shown in Figure 3 . Further, the thickness of the felt 11 is 1cm-1.5cm, and the thickness of the second pearl wool 12 is 2cm-2.5cm.
[0045] Step four, embed carbon steel sheaths at both ends of the half-wrapped piece to form a fully-wrapped piece.
[0046] The carbon steel sheath here is used to wrap and protect the two ends of the steel coil 2, and the grade is SPCC. Further, a pearl wool lining is arranged between the inner side of the carbon steel sheath and the end of the half-wrapped piece, to improve the protection of the end of the steel coil 2.
[0047] Step five, use the second binding tape 13 to axially tighten the fully-wrapped piece, and fix the fully-wrapped piece with the wooden frame.
[0048] As shown in Figure 4 and Figure 5 , the second binding tape 13 passes through the seamless steel sleeve 1, axially wraps the fully-wrapped piece, and is cross-bound with the first binding tape 6. Considering that the corners of the fully-wrapped piece are prone to force concentration and damage, a pearl wool corner protector 14 is placed at the binding position of the second binding tape 13 on the corner of the fully-wrapped piece, and the surface of the pearl wool corner protector 14 is covered with an L-shaped plastic corner protector 15, so as to form double protection through the pearl wool corner protector 14 and the L-shaped plastic corner protector 15, as shown in Figure 6 , to avoid the second binding tape 13 crushing the internal steel coil 2.
[0049] Further, the width of the pearl wool corner protector 14 is 20mm-40mm, and the thickness is 1cm; the width of the L-shaped plastic corner protector 15 is 20mm-40mm, and the thickness is 3mm; the second binding tape 13 is a self-locking binding tape made of nylon material, and the width of the second binding tape 13 is 20mm, and the length is 1200mm-1500mm.
[0050] In addition, when the full wrapping piece is fixed with the wooden frame by using the second binding belt 13, the full wrapping piece can be fixed with the wooden frame 8 or other specific parts, so that the full wrapping piece cannot roll out of the two cross beams 7.
[0051] Step six, use the wooden box to cover the full wrapping piece, and fix the wooden box with the wooden frame.
[0052] The wooden box is made of wood board into a conventional box body, the wooden box is inverted on the wooden frame, and the wooden box is nailed with the reserved wooden strip 9 to form the outermost protection.
[0053] In summary, the packaging method of the precise stainless steel foil strip aims at the easy damage of the ultra-thin stainless steel strip, designs a multi-layer wrapping and binding structure, realizes all-around protection and fastening, ensures the ultra-thin stainless steel strip without damage in the process of packaging and transportation as much as possible, and improves the use yield.
[0054] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A method for packaging precision stainless steel foil strips, characterized in that, include: Step 1: Wrap the finished stainless steel strip around the seamless steel sleeve (1) to form a steel coil (2); Step 2: Use PE wrapping film (3) to wrap the steel coil (2) three-dimensionally, then use the first pearl cotton (4) and carbon steel strip (5) to wrap the circumferential surface of the steel coil (2) in sequence, and then use the first binding strap (6) to bind the carbon steel strip (5) circumferentially to form a semi-wrapped part; Step 3: Place the semi-packaged part on the wooden frame, and keep the axial direction of the steel coil (2) horizontal; Step 4: Install carbon steel sleeves at both ends of the semi-enclosed part to form a fully enclosed part; Step 5: Use the second strapping (13) to axially bind the full-wrap piece and fix the full-wrap piece to the wooden frame; Step 6: Cover the full-wrap package with a wooden crate, and secure the crate to the wooden frame.
2. The packaging method for precision stainless steel foil strip according to claim 1, characterized in that, The thickness of the finished stainless steel strip is ≤0.05mm; the width of the PE wrapping film (3) is 125mm~500mm and the thickness is 20μm~25μm; the thickness of the first pearl cotton (4) is 0.5cm~1.0cm; the grade of the carbon steel strip (5) is SPCC and the thickness is 0.25mm~0.35mm; the first binding strap (6) is a self-locking binding strap made of nylon material, the width of the first binding strap (6) is 10mm and the length is 1200mm~1500mm.
3. The packaging method for precision stainless steel foil strip according to claim 1, characterized in that, The three first binding straps (6) are evenly spaced along the axial direction of the steel coil (2).
4. The packaging method for precision stainless steel foil strip according to claim 1, characterized in that, The wooden frame includes two horizontal beams (7) arranged parallel to the axial direction of the steel coil (2). The semi-wrapped part is supported and limited by the two horizontal beams (7). Several spaced wooden blocks (8) are fixed below the two horizontal beams (7). Wooden strips (9) for fixing to the wooden box are respectively provided on the outer side of the two horizontal beams (7).
5. The packaging method for precision stainless steel foil strip according to claim 4, characterized in that, The two crossbeams (7) are configured with inclined surfaces (10) that contact the surface of the semi-wrapped piece, and felt (11) and second pearl cotton (12) are successively placed on the inclined surfaces (10).
6. The packaging method for precision stainless steel foil strip according to claim 5, characterized in that, The thickness of the felt (11) is 1cm to 1.5cm, and the thickness of the second pearl cotton (12) is 2cm to 2.5cm.
7. The packaging method for precision stainless steel foil strip according to claim 1, characterized in that, A pearl cotton lining is provided between the inner side of the carbon steel sheath and the end of the semi-wrapped component.
8. The packaging method for precision stainless steel foil strip according to claim 1, characterized in that, Pearl cotton corner protectors (14) are placed on the rounded corners of the full-wrap package corresponding to the binding position of the second strap (13), and the surface of the pearl cotton corner protectors (14) is covered with L-shaped plastic corner protectors (15).
9. The packaging method for precision stainless steel foil strip according to claim 8, characterized in that, The width of the pearl cotton corner protector (14) is 20mm to 40mm and the thickness is 1cm; the width of the L-shaped plastic corner protector (15) is 20mm to 40mm and the thickness is 3mm.
10. The packaging method for precision stainless steel foil strip according to claim 1, characterized in that, The second strapping (13) is a self-locking strapping made of nylon. The width of the second strapping (13) is 20mm and the length is 1200mm to 1500mm.