Football and manufacturing method therefor

Abstract

Disclosed in the present invention is a football manufacturing method, comprising the following steps: cutting panels according to a designed panel shape; applying a glue to the edges of the outer surfaces of the panels, a glue application range at least covering stitching areas of the panels; curing the glue; assembling the panels to cause glue applied areas of adjacent panels to coincide with each other, then stitching the panels to form a spherical shell, and reserving an opening; heating the spherical shell to fuse the glue at the edges of the outer surfaces of the adjacent panels; overturning the spherical shell and inserting a bladder; stitching the reserved opening; and performing heating to fuse the glue at the edges of the outer surfaces of the adjacent panels at the opening. According to the present invention, a glue is applied to the edges of panels of a football, so that stitching areas at the edges of adjacent panels are covered with the glue, a stitching thread at assembly and stitching positions of the panels of the football is not exposed, and the panels are not prone to damage; glue applied areas at the edges of the panels make the assembly and stitching positions of the panels be not prone to absorb water and adsorb dust; and the process of applying a glue at the edges of the panels can make the appearance of a stitched football round.

Description

A soccer ball and a method for manufacturing the same Technical Field

[0001] The present invention relates to the technical field of sports goods, in particular to a football and a manufacturing method thereof. Background Art

[0002] The existing sewing machine process for producing soccer balls involves perforating the edges of leather pieces made of different materials (such as PVC, TPU, and PU) and then stitching them together using a sewing machine. This existing stitching process has the following drawbacks: it can lead to pinholes and exposed threads during stitching.

[0003] Due to the inherent peculiarities of the manufacturing process, stitching lines are unavoidable when the ball pieces are sewn together, and exposed seams are unavoidable. This results in a poor aesthetic appearance for the ball shell, and during use, these seams are susceptible to damage, water ingress, dust buildup, and damage to the leather. To address this issue, existing techniques apply glue to the seams after the pieces are sewn together to prevent holes and exposed seams. This approach has the following issues: 1. Uneven glue application can easily lead to glue overflow; 2. The applied glue is susceptible to oxidation and discoloration; and 3. The applied glue does not fully cover the machine-stitched seams.

[0004] Summary of the Invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a soccer ball and a method for manufacturing the same, which can prevent the needle holes and threads at the joints of the ball pieces from being exposed, thereby solving the problems existing in the prior art.

[0006] Technical solution: A method for manufacturing a soccer ball of the present invention comprises the following steps:

[0007] (1) Cut the spherical piece according to the designed piece shape;

[0008] (2) Apply glue to the edge of the outer surface of the ball, and the glue application range at least covers the stitching area of ​​the ball;

[0009] (3) Curing glue;

[0010] (4) Joining the ball pieces so that the glue-coated areas of adjacent pieces overlap, and then sewing the pieces together to form a ball shell with a reserved closing edge;

[0011] (5) heating the spherical shell to fuse the glue at the edges of the outer surfaces of adjacent spherical pieces;

[0012] (6) Installing the bladder into the ball shell;

[0013] (7) Sewing the reserved seam;

[0014] (8) Heat to fuse the glue at the edges of the outer surfaces of adjacent spherical pieces at the closing portion.

[0015] Preferably, in step (2), the glue is applied within 3.5 mm of the edge of the outer surface of the ball piece.

[0016] Preferably, the glue is a water-based adhesive glue, and in step (3), the glue is cured at a temperature of 5-35° C. for no more than 30 minutes.

[0017] Preferably, in step (5), the spherical shell is heated at 60-70° C. for not less than 1 hour.

[0018] Preferably, in step (5), the spherical shell is kept warm and heated and then left to stand for more than 12 hours before proceeding to step (6).

[0019] Preferably, in step (6), after applying glue on the air nozzle of the ball shell and the ball mouth of the ball bladder, the ball shell and the ball bladder are bonded at the ball mouth to complete the connection between the ball shell and the ball bladder, or the ball shell is turned inside out and then the ball bladder is installed inside the ball shell.

[0020] Preferably, the distance from the edge of the ball piece to the sewing line is no more than 3 mm.

[0021] Preferably, in step (2), the glue on the edge of the outer surface of the ball piece is applied by a screen or a glue coating machine.

[0022] Preferably, after the ball pieces are cut in step (1), a pattern is printed on the outer surface of the ball pieces.

[0023] The present invention also provides a soccer ball, which is manufactured by the manufacturing method of the present invention.

[0024] Beneficial effects: Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. Apply glue to the edges of the outer surfaces of the soccer balls so that the seams of the adjacent pieces are covered with glue. After the glue solidifies, the seams of the soccer pieces are not exposed, making the soccer ball less likely to be damaged.

[0026] 2. After the edges of the outer surface of the soccer ball are coated with glue, the joints of the ball pieces are covered with glue, making the seams less likely to absorb water and dust.

[0027] 3. The glued edge area on the outer surface of the soccer ball piece covers the stitching area of ​​the ball piece, which can make the appearance of the sewn soccer ball more rounded than that of the un-glueed soccer ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a schematic flow chart of a method for manufacturing a soccer ball according to the present invention;

[0029] Figure 2 is a schematic diagram of the structure of the ball piece;

[0030] FIG3 is a schematic diagram of the structure in which adjacent spherical pieces are connected.

[0031] In the figure: 1-ball piece; 2-glue; 3-sewing area; 4-seams. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] Example 1

[0034] As shown in FIG1 and FIG2 , a method for manufacturing a soccer ball according to the present invention comprises the following steps:

[0035] (1) Cutting the ball piece 1 according to the designed piece shape;

[0036] (2) Apply glue 2 to the edge of the outer surface of the ball piece, and the glue application range at least covers the stitching area 3 of the ball piece;

[0037] (3) Curing glue;

[0038] (4) Joining the pieces so that the glue-coated areas of the adjacent pieces overlap, and then sewing the pieces together to form a ball shell with a reserved seam; the said seam is formed by leaving the last seam unsewn when sewing the pieces together to form the ball shell, forming an opening, which is called a seam;

[0039] (5) heating the spherical shell to fuse the glue at the edges of the outer surfaces of adjacent spherical pieces;

[0040] (6) Installing the bladder into the ball shell;

[0041] (7) Sewing the reserved edges to form a complete spherical shell;

[0042] (8) Heat to fuse the glue at the edges of the outer surfaces of adjacent spherical pieces at the closing portion.

[0043] Example 2

[0044] Based on Example 1, in step (2), glue is applied within 3.5 mm of the edge of the outer surface of the ball piece, and the glue is applied through a screen or a glue coating machine. When the ball piece of the present invention is sewn, the distance from the edge of the ball piece to the sewing line is no more than 3 mm. Taking 3 mm as an example, the glue application range covers the position of the sewing line, and the sewing line will not be exposed after the ball piece is sewn. Specifically, the area where the glue is applied can be fully applied within 3.5 mm of the edge of the outer surface of the ball piece, or it can be applied to only a part of the area. In principle, it can cover the sewing line area and prevent the seam from being exposed, thereby achieving the purpose of the present invention.

[0045] Example 3

[0046] On the basis of Example 1, the glue applied to the edge of the outer surface of the ball piece of the present invention is a water-based adhesive glue, and in step (3), the glue is cured at a temperature of 5-35°C for no more than 30 minutes.

[0047] Example 4

[0048] On the basis of Example 1, in step (5), the spherical shell is kept warm and heated at 60-70°C for not less than 1 hour. Due to the characteristics of the material of the spherical shell, the temperature of the heat preservation and heating should not be too high to prevent the leather and foam of the spherical shell from changing the molecular structure of the material due to excessive temperature, resulting in changes in the appearance of the spherical shell and the plasticity of the leather. In step (5), the spherical shell is kept warm and heated and then left to stand for more than 12 hours, and then step (6) is performed. The standing time is related to the characteristics of the glue. The present invention uses water-based adhesive glue. After heat preservation and heating, it needs to be left to stand for more than 12 hours to ensure that the glue is completely cured. When using other glues, the curing process should be set according to the properties of the glue.

[0049] Example 5

[0050] On the basis of Example 1, in step (6) of the present invention, after applying glue at the air nozzle of the ball shell and the ball nozzle of the ball bladder, the ball shell and the ball bladder are bonded at the ball nozzle to complete the connection between the ball shell and the ball bladder. At this time, the ball bladder is located outside the ball shell.

[0051] Alternatively, turn the ball shell inside out first, then install the bladder into the ball shell. Before installing, you can also apply glue to the ball shell where the air nozzle is at the ball mouth of the bladder, and then install the bladder into the ball shell.

[0052] After the bladder is installed in the shell, only the seam is left unsewn, and then the seam closing process of step (7) is carried out. In step (7), the small seam sewing and hand-sewing process are carried out during the production process. The distance between the edge of the ball piece and the seam line is no more than 3mm, and it can be consistent with the distance between the edge of the other ball pieces and the seam line.

[0053] Example 6

[0054] On the basis of Example 1, after the ball piece is cut in step (1), a pattern can be printed on the outer surface of the ball piece according to the design drawing, and the printed pattern can be printed by high-frequency embossing.

[0055] Example 7

[0056] The present invention also provides a soccer ball, which is manufactured by the manufacturing method of the present invention.

[0057] FIG3 is a schematic diagram of connecting two adjacent pieces. After steps (1) to (4) of the present invention, the adjacent pieces are sewn together according to the design drawings, forming a seam 4 between the adjacent pieces. Since the seam line is covered by the glue-coated area, the seam line is not exposed after the glue of the adjacent pieces fuses and solidifies. The seam 4 forms a single line, which prevents the football from being damaged. Compared with the seams of traditional footballs, the seams are not stained with water or dust. The glue makes the gap between the skins smaller, which also makes the football more rounded.

[0058] It should be emphasized that the ball pieces shown in Figures 2 and 3 are only a specific embodiment of the present invention. The present invention is not limited to ball pieces of a specific shape. Soccer balls manufactured using the solution of the present invention with ball pieces of other shapes are also within the scope of protection of the present invention.

Claims

1. A method for manufacturing a football, characterized in that: The following steps are involved: (1) Cut the ball slices according to the designed slice shape; (2) Apply glue to the edge of the outer surface of the ball piece, and the glue application range at least covers the stitching area of ​​the ball piece; (3) Curing glue; (4) joining the ball pieces so that the glue-coated areas of the adjacent ball pieces overlap, and then sewing the ball pieces to form a ball shell and leaving a closure; (5) heating the ball shell to fuse the glue at the edges of the outer surfaces of adjacent ball pieces; (6) Installing the ball bladder into the ball shell; (7) Sewing the reserved closing; (8) Heat the glue to fuse the glue at the edges of the outer surfaces of the adjacent spherical pieces at the joint.

2. A method for manufacturing a football according to claim 1, characterized in that: In step (2), glue is applied within 3.5 mm of the edge of the outer surface of the ball piece.

3. The method for manufacturing a soccer ball according to claim 1, characterized in that: The glue is a water-based adhesive glue. In step (3), the glue is cured at a temperature of 5-35° C. for no more than 30 minutes.

4. The method for manufacturing a soccer ball according to claim 1, characterized in that: In step (5), the spherical shell is heated at 60-70° C. for not less than 1 hour.

5. The method for manufacturing a soccer ball according to claim 1, characterized in that: In step (5), the spherical shell is heated and then left to stand for more than 12 hours, and then step (6) is performed.

6. The method for manufacturing a soccer ball according to claim 1, characterized in that: In step (6), the air nozzle of the ball shell is connected to the ball nozzle of the ball bladder, and then the ball shell is turned inside out, or the ball shell is turned inside out and then the ball bladder is installed.

7. The method for manufacturing a soccer ball according to claim 1, characterized in that: The distance from the edge of the ball piece to the sewing line is no more than 3 mm.

8. The method for manufacturing a soccer ball according to claim 1, characterized in that: In step (2), the glue on the outer surface edge of the ball piece is applied by a screen or a glue coating machine.

9. The method for manufacturing a soccer ball according to claim 1, characterized in that: Step (1) After the ball piece is cut, a pattern is printed on the outer surface of the ball piece.

10. A soccer ball, characterized in that: The football is made by the method for making a football according to any one of claims 1 to 9.

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