A hot-dip galvanized steel strip for easy coiling

Abstract

The utility model relates to a kind of hot galvanizing strip steel of convenient winding, including strip steel body, the strip steel body is spirally wound, the outer circumferential surface and inner circumferential surface of strip steel body are all fixedly covered with film layer, two the film layer outer lateral wall all are provided with antiskid structure, the two side edges of strip steel body are respectively fixedly connected with the inner edge strip and outer edge strip for strengthening the edge stability of the film layer, gas hole for discharging interlayer air is opened in outer edge strip and inner edge strip.The utility model relates to the technical field of hot galvanizing strip steel winding.A kind of hot galvanizing strip steel of convenient winding, when using, can utilize the inner edge strip and outer edge strip of film layer cooperation arrangement in the process of winding, to form protection between layers after the winding of strip body, avoid its appearance rubbing damaged phenomenon, simultaneously can be discharged to the air in the strip steel body after winding by the cooperation of rectangular groove and gas hole, avoid appearance gas inflation phenomenon.

Description

Technical Field

[0001] This utility model relates to the technical field of hot-dip galvanized steel strip coiling, and in particular to a hot-dip galvanized steel strip that is easy to coil. Background Technology

[0002] Hot-dip galvanized steel strip, as an important anti-corrosion steel product, is widely used in many fields such as construction, automobile manufacturing, and home appliance housings. In its production process, the hot-dip galvanized steel strip needs to be wound into steel coils by coiling equipment for storage, transportation, and subsequent processing.

[0003] Currently, the common method for coiling hot-dip galvanized steel strip is direct coiling, meaning the layers of strip are in direct contact. This traditional coiling method has the following problems in practical applications:

[0004] First, there is the issue of surface quality damage. The hot-dip galvanized layer is relatively soft. During the coiling process, the strip layers come into close contact and slide relative to each other under huge coiling tension, which can easily lead to scratches, indentations, and other damage on the galvanized surface.

[0005] Secondly, there is the problem of poor morphological stability of the steel coil. This manifests in two ways: First, due to the smooth surface of the strip steel and limited interlayer friction, interlayer slippage easily occurs during coiling tension fluctuations, sudden stops, or transport vibrations, resulting in uneven coil ends and the formation of "tower-shaped coils" or "loose coils," posing significant safety hazards. Second, during high-speed coiling, a large amount of air is drawn into the interlayers and cannot be expelled in time, forming an "air expansion" phenomenon. This causes local bulging and loosening of the coil shape, affecting its stacking stability and the smoothness of subsequent uncoiling processing. Therefore, it affects the surface quality of the strip steel coil during coiling and the overall quality of the coil. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hot-dip galvanized steel strip that is easy to coil, so as to solve the technical problems mentioned in the background art.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A hot-dip galvanized steel strip that is easy to wind up includes a steel strip body that is spirally wound. Both the outer and inner circumferential surfaces of the steel strip body are fixedly covered with a coating layer. Anti-slip structures are provided on the outer walls of both coating layers. Inner edge strips and outer edge strips for strengthening the edge stability of the coating layer are fixedly connected to the two sides of the steel strip body, and air holes for venting interlayer air are opened on the outer edge strips and inner edge strips.

[0009] In a preferred embodiment, the present invention can be further configured such that the anti-slip structure consists of multiple rectangular grooves formed on the outer wall of the coating layer, the rectangular grooves being flared.

[0010] In a preferred embodiment, the present invention can be further configured such that: a plurality of insert blocks are fixedly connected to the inner periphery of the inner edge strip, and the outer periphery of the outer edge strip is provided with corresponding insertion holes for the insert blocks of adjacent roll layers to be inserted.

[0011] In a preferred embodiment, the present invention can be further configured such that the cross-section of the insert is one of trapezoidal, rectangular or cylindrical, wherein the insertion hole is flared.

[0012] In a preferred embodiment, the present invention can be further configured such that: a plurality of the air holes are respectively connected to corresponding rectangular grooves on the coating layer, and the rectangular grooves are connected to the outside through the corresponding air holes.

[0013] In a preferred embodiment, the present invention can be further configured such that: the coating layer is a plastic film or a flexible composite film, and the outer edge strip and the inner edge strip are both made of one of ABS, polyamide, and acetal.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. This convenient hot-dip galvanized steel strip, during use, can utilize the inner and outer edge strips provided with the coating layer to form protection between the layers of the steel strip after winding, avoiding friction damage. At the same time, the air inside the rolled steel strip can be discharged through the combination of rectangular grooves and air holes, avoiding air expansion.

[0016] 2. This type of hot-dip galvanized steel strip that is easy to coil has inserts on the inner edge strip of the strip body. Under the guidance of radial pressure, the inserts will be precisely embedded into the flared inserts on the outer edge strip of the adjacent outer layer of the strip body. This positions each coil of strip steel and locks each layer firmly in the axial direction, preventing radial misalignment between the strip steel layers and improving the stacking stability and transportation safety of the steel coil.

[0017] 3. The hot-dip galvanized steel strip that is easy to rewind features trapezoidal, cylindrical, or flared designs for the insert blocks and holes, which improves the fault tolerance of this part of the structure and allows the insertion action to be completed smoothly and automatically during high-speed rewinding, thereby improving production efficiency.

[0018] 4. This type of hot-dip galvanized steel strip that is easy to rewind has inner and outer edge strips that can act as locking carriers between the layers of the steel strip coil, improving the stability between the rigid layers of the strip after rewinding. In addition, it is made of high-strength engineering plastics (such as ABS, polyamide, and acetal), and also acts as a reinforcing rib and protective sleeve for the edge of the coating layer, which can prevent the coating layer from peeling or breaking at the edge. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the outer edge strip structure of this utility model.

[0022] Figure 3 For the present utility model Figure 2 A schematic diagram of the front structure.

[0023] Figure 4 For the present utility model Figure 3 A magnified structural diagram of point A in the diagram.

[0024] In the diagram, 1. Steel strip; 2. Coating layer; 3. Anti-slip structure; 4. Inner edge strip; 5. Outer edge strip; 6. Air hole; 7. Rectangular groove; 8. Insert block; 9. Insertion hole. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figure 1 - Figure 4 The present invention discloses a hot-dip galvanized steel strip that is easy to wind up, comprising a steel strip body 1, wherein the steel strip body 1 is spirally wound, characterized in that the outer and inner circumferential surfaces of the steel strip body 1 are fixedly covered with a coating layer 2, and the outer side walls of the two coating layers 2 are provided with anti-slip structures 3, and the two sides of the steel strip body 1 are respectively fixedly connected with an inner edge strip 4 and an outer edge strip 5 for strengthening the edge stability of the coating layer 2, and the outer edge strip 5 and the inner edge strip 4 are provided with air holes 6 for venting interlayer air;

[0028] The anti-slip structure 3 consists of multiple rectangular grooves 7 formed on the outer wall of the coating layer 2, with the rectangular grooves 7 being flared.

[0029] In this embodiment, reference Figure 1 - Figure 4 When the strip 1 is spirally wound, the coating layers 2 on its upper and lower surfaces come into contact with each other, thus protecting the strip and preventing friction caused by mutual compression between the layers. This prevents wear and scratches caused by interlayer friction after winding. In addition, the anti-slip structure 3 increases the contact between the layers of the strip 1 after winding, with the corresponding two coating layers 2 coming into contact with each other. The flared rectangular grooves 7 on the outer wall of the coating layer 2 form air channels. During winding, these rectangular grooves 7 increase the effective contact area and surface roughness between the layers, thereby improving the stability of the strip during winding. At the same time, the air entering the rectangular grooves 7 during winding can be discharged through the air holes 6 on the outer edge strip 5 and the inner edge strip 4, preventing air expansion.

[0030] In a further preferred embodiment of this utility model, such as Figure 1 and Figure 4 As shown, a plurality of insert blocks 8 are fixedly connected to the inner periphery of the inner edge strip 4, and the outer periphery of the outer edge strip 5 is provided with corresponding insertion holes 9 for the insertion blocks 8 of adjacent rolls to be inserted. The cross-section of the insert block 8 is one of trapezoidal, rectangular or cylindrical, wherein the insertion hole 9 is flared.

[0031] In this embodiment, reference Figure 1 and Figure 4 During winding, the inserts 8 on the inner edge strip 4 of the strip body 1, guided by radial pressure, will precisely embed into the flared insertion holes 9 on the outer edge strip 5 of the adjacent outer strip body 1, positioning each coil of strip steel and firmly locking each layer in the axial direction to prevent radial misalignment between strip steel layers. This improves the stacking stability and transportation safety of the steel coil. The trapezoidal, cylindrical, or flared design of the inserts 8 and insertion holes 9 improves the fault tolerance of this part of the structure, enabling the insertion action to be completed smoothly and automatically during high-speed winding, thus improving production efficiency.

[0032] In a further preferred embodiment of this utility model, such as Figure 4 As shown, several of the air holes 6 are respectively connected to the corresponding rectangular grooves 7 on the coating layer 2. The rectangular grooves 7 are connected to the outside through the corresponding air holes 6. The coating layer 2 is a plastic film or a flexible composite film. The outer edge strip 5 and the inner edge strip 4 are both made of ABS, polyamide, or acetal.

[0033] In this embodiment, reference Figure 1 and Figure 4Among them, the inner edge strip 4 and the outer edge strip 5 can serve as locking carriers between the strip coil layers, improving the stability between the rigid layers of the strip after winding. They are made of high-strength engineering plastics (such as ABS, polyamide, and acetal), and also act as reinforcing ribs and protective sleeves for the edges of the coating layer 2, preventing the coating layer 2 from lifting or breaking at the edges.

[0034] The implementation principle of the above embodiment is as follows: When the strip 1 is spirally wound, the coating layers 2 on its upper and lower surfaces come into contact with each other, thereby protecting the strip and preventing friction caused by mutual compression between the layers. This prevents wear and scratches caused by interlayer friction after the strip is wound. In addition, the anti-slip structure 3 can increase the contact between the layers of the strip 1 after winding by the corresponding two coating layers 2. The flared rectangular grooves 7 on the outer wall of the coating layer 2 form an air channel. During winding, these rectangular grooves 7 increase the effective contact area and surface roughness between the layers, thereby improving the stability of the strip during winding. At the same time, the air entering the rectangular grooves 7 during winding can be discharged through the air holes 6 on the outer edge strip 5 and the inner edge strip 4 to avoid air expansion.

[0035] In addition, during coiling, the inserts 8 on the inner edge strip 4 of the strip body 1, guided by radial pressure, will precisely embed into the flared inserts 9 on the outer edge strip 5 of the adjacent outer strip body 1, positioning each coil of strip steel and firmly locking each layer in the axial direction, preventing radial misalignment between strip steel layers, and improving the stacking stability and transportation safety of the steel coil.

[0036] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A hot-dip galvanized steel strip that is easy to coil, comprising a steel strip body (1), wherein the steel strip body (1) is spirally wound, characterized in that, The outer and inner circumferential surfaces of the steel strip (1) are fixedly covered with a coating layer (2). Anti-slip structures (3) are provided on the outer walls of the two coating layers (2). The two sides of the steel strip (1) are respectively fixedly connected with an inner edge strip (4) and an outer edge strip (5) for strengthening the edge stability of the coating layer (2). The outer edge strip (5) and the inner edge strip (4) are provided with air holes (6) for venting interlayer air.

2. The hot-dip galvanized steel strip for easy winding according to claim 1, characterized in that, The anti-slip structure (3) consists of multiple rectangular grooves (7) formed on the outer wall of the coating layer (2), with the rectangular grooves (7) being flared.

3. The hot-dip galvanized steel strip for easy winding according to claim 1, characterized in that, The inner edge strip (4) has several inserts (8) fixedly connected to its inner periphery, and the outer edge strip (5) has corresponding insertion holes (9) for the insertions (8) of adjacent roll layers to be inserted.

4. The hot-dip galvanized steel strip for easy winding according to claim 3, characterized in that, The cross-section of the insert (8) is one of trapezoidal, rectangular or cylindrical, wherein the insertion hole (9) is flared.

5. The hot-dip galvanized steel strip for easy winding according to claim 4, characterized in that, Several of the pores (6) are connected to the corresponding rectangular grooves (7) on the coating layer (2), and the rectangular grooves (7) are connected to the outside through the corresponding pores (6).

6. The hot-dip galvanized steel strip for easy winding according to claim 5, characterized in that, The coating layer (2) is a plastic film or a flexible composite film, and the outer edge strip (5) and the inner edge strip (4) are both made of one of ABS, polyamide, or acetal.

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