Process for manufacturing an airless football

Abstract

The application relates to the technical field of sports goods manufacturing, in particular to a manufacturing process of an air-free football, which comprises the following steps: S1, uniformly mixing main material rubber particles and auxiliary materials, and then putting the mixture into a mixer to mix and knead, so as to obtain a mixed material; S2, opening the mixed material to obtain a material sheet; S3, cutting the material sheet into particles; S4, taking the particles, adding a foaming machine to carry out solid foaming, so as to obtain a rough ball; S5, polishing the surface of the rough ball to be smooth; S6, carrying out secondary foaming and forming on the rough ball after polishing; S7, cleaning and arranging the surface of the formed football; S8, carrying out vacuum transfer printing and color drawing patterns on the surface of the football, so as to obtain a finished product football. The manufacturing process is simple, the finished product has enough elasticity when used, the elasticity is equivalent to that of a common ball, the use is convenient, the air-free football is not inflated, the texture is light, the surface touch of the football is good, the air-free football can be recycled and reused after being scrapped, and the air-free football is environment-friendly and pollution-free.

Description

Technical Field

[0001] This invention relates to the field of sports equipment manufacturing technology, specifically to a manufacturing process for an airless soccer ball. Background Technology

[0002] Currently used balls, such as basketballs, volleyballs, and soccer balls made of leather or rubber, consist of a spherical surface and a hollow bladder. While suitable for sports competitions, their weight and hardness make them unsuitable for teenagers, beginners, and the elderly. Furthermore, the manufacturing process involves sewing pre-cut leather or synthetic materials onto the outside of the bladder, resulting in complex manufacturing and high costs. All these shortcomings fail to meet the needs of various fitness groups for the feel of basketballs, volleyballs, and soccer balls. Additionally, ordinary balls require inflation, making them inconvenient to use. Therefore, there is a need to develop an airless soccer ball. Summary of the Invention

[0003] To overcome the shortcomings and deficiencies of existing technologies, the present invention aims to provide a manufacturing process for an airless soccer ball. This process is simple and easy to manufacture. The finished product has sufficient elasticity when in use, and its elasticity is comparable to that of a regular ball. It is convenient to use, does not require inflation, is lightweight, has a gentle and pleasant surface feel, and is unlikely to injure the user. It is low in cost and easy to manufacture, providing a new option for soccer balls for all levels of society. Moreover, the airless soccer ball can be recycled and reused after use, making it environmentally friendly and pollution-free.

[0004] The objective of this invention is achieved through the following technical solution: a manufacturing process for an airless soccer ball, comprising the following steps:

[0005] S1. Weigh the main material rubber granules and auxiliary materials. Add the auxiliary materials to the main material rubber granules and mix evenly. Then put the mixture into a mixer and heat it to 120-130℃. Stir and mix for 10-20 minutes to obtain the mixture. Set aside for later use.

[0006] S2. Transfer the mixture to a two-roll mill and mill it at 75-85℃ for 4-8 minutes. Discharge the material to obtain flakes for later use.

[0007] S3. Cut the material flakes into pellets of a certain size using a pelletizer, and set aside.

[0008] S4. Weigh 210g of granules, add the granules into the mold of the foaming machine and heat to 180-220℃ for solid foaming for 40-60 minutes to obtain blank balls for later use.

[0009] S5. Polish the surface of the blank ball until smooth, and set aside.

[0010] S6. Place the polished blank ball on the molding machine and heat it to 190-210℃ for 50-60 minutes for secondary foaming and molding, then set aside.

[0011] S7. Clean and finish the surface of the soccer ball after secondary foaming to obtain a semi-finished soccer ball for later use.

[0012] S8. Vacuum transfer printing, color painting, and logo are applied to the surface of the semi-finished soccer ball to obtain the finished soccer ball.

[0013] The airless soccer ball of this invention features a simple manufacturing process, ease of production, and sufficient elasticity comparable to a regular ball. It is convenient to use, lightweight, and has a gentle, pleasant surface feel, minimizing the risk of injury. Its low cost and ease of manufacture provide a new option for soccer needs across various social groups. Furthermore, the airless soccer ball is recyclable after use, making it environmentally friendly and pollution-free. It also overcomes the cumbersome process of previously requiring the injection molding of a ball with cold water during shaping, followed by gluing the ball's surface cap to the body.

[0014] Preferably, in step S1, the weight ratio of the main material granules to the auxiliary materials is 5-10:0.4-5.

[0015] Preferably, the main material granules are at least one of EVA granules, TPE granules, and POE granules.

[0016] Preferably, the excipients comprise the following raw materials in weight percentages: calcium carbonate 1-10%, AC foaming agent 1-10%, odorless bridging agent 0.2-5.0%, zinc oxide powder 0.3-5.0%, stearic acid 0.3-5.0%, colorant 0-6.0%, and deammonigenin 1-10%.

[0017] More preferably, the excipients comprise the following raw materials by weight percentage: 1-10% calcium carbonate, 1-10% AC foaming agent, 0.2-5.0% odorless bridging agent, 0.3-5.0% zinc oxide powder, 0.3-5.0% stearic acid, 0.2-6.0% colorant, and 1-10% deammoniation agent; wherein the odorless bridging agent is BIBP.

[0018] The non-inflatable soccer ball prepared in this invention uses the aforementioned raw materials, which, after foaming and molding, produce a soccer ball with sufficient elasticity, comparable to that of a regular ball, and with a gentle and pleasant surface feel. The material obtained by foaming the main rubber granules exhibits good water resistance, high resilience and tensile strength, and strong toughness. Furthermore, the aforementioned raw materials used in the main rubber granules are more environmentally friendly than PU polyurethane materials, are easier to recycle, and reduce costs. Edge waste and final waste products generated during production can be directly recycled, and used soccer balls can be easily regenerated and recycled, reducing environmental pollution and expanding the sources of renewable resources.

[0019] The beneficial effects of this invention are as follows: the manufacturing process of the airless soccer ball of this invention is simple and easy to manufacture. When the finished product is used, it has sufficient elasticity, and its elasticity is comparable to that of a regular ball. It is convenient to use, does not require inflation, is lightweight, and has a gentle and pleasant surface feel, making it less likely to injure the user. It is low in cost and easy to manufacture, providing a new option for the soccer ball needs of various social groups. Moreover, the airless soccer ball can be recycled and reused after use, making it environmentally friendly and pollution-free. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments. The content mentioned in the embodiments is not intended to limit the present invention.

[0021] Example 1

[0022] A manufacturing process for a non-inflatable soccer ball includes the following steps:

[0023] S1. Weigh the main material rubber granules and auxiliary materials. Add the auxiliary materials to the main material rubber granules and mix evenly. Then put the mixture into a mixer and heat it to 120°C. Stir and mix for 10 minutes to obtain the mixture. Set aside for later use.

[0024] S2. Transfer the mixture to a two-roll mill and mill it at 75°C for 4 minutes. Discharge the material to obtain flakes for later use.

[0025] S3. Cut the material flakes into pellets of a certain size using a pelletizer, and set aside.

[0026] S4. Weigh 210g of granules, add the granules into the mold of the foaming machine and heat to 180℃ for solid foaming for 40 minutes to obtain blank balls for later use.

[0027] S5. Polish the surface of the blank ball until smooth, and set aside.

[0028] S6. Place the polished blank ball on the molding machine and heat it to 190℃ for 50 minutes for secondary foaming and molding, then set aside.

[0029] S7. Clean and finish the surface of the soccer ball after secondary foaming to obtain a semi-finished soccer ball for later use.

[0030] S8. Vacuum transfer printing, color painting, and logo are applied to the surface of the semi-finished soccer ball to obtain the finished soccer ball.

[0031] In step S1, the weight ratio of the main material granules to the auxiliary materials is 5:0.4. The main material granules are EVA granules.

[0032] The excipients include the following raw materials in weight percentage: 1% calcium carbonate, 1% AC foaming agent, 0.2% odorless bridging agent, 0.3% zinc oxide powder, 0.3% stearic acid, 0.02% colorant, and 1% deammoniation agent; the odorless bridging agent is BIBP.

[0033] Example 2

[0034] A manufacturing process for a non-inflatable soccer ball includes the following steps:

[0035] S1. Weigh the main material granules and auxiliary materials. Add the auxiliary materials to the main material granules and mix evenly. Then put the mixture into a mixer and heat it to 123°C. Stir and mix for 13 minutes to obtain the mixture. Set aside for later use.

[0036] S2. Transfer the mixture to a two-roll mill and mill it at 78°C for 5 minutes. Discharge the material to obtain flakes for later use.

[0037] S3. Cut the material flakes into pellets of a certain size using a pelletizer, and set aside.

[0038] S4. Weigh 210g of granules, add the granules into the mold of the foaming machine and heat to 190℃ for solid foaming for 45 minutes to obtain blank balls for later use.

[0039] S5. Polish the surface of the blank ball until smooth, and set aside.

[0040] S6. Place the polished blank ball on the molding machine and heat it to 195℃ for 53 minutes for secondary foaming and molding, then set it aside.

[0041] S7. Clean and finish the surface of the soccer ball after secondary foaming to obtain a semi-finished soccer ball for later use.

[0042] S8. Vacuum transfer printing, color painting, and logo are applied to the surface of the semi-finished soccer ball to obtain the finished soccer ball.

[0043] In step S1, the weight ratio of the main material granules to the auxiliary materials is 6:2. The main material granules are TPE granules.

[0044] The excipients include the following raw materials by weight percentage: 2% calcium carbonate, 4% AC foaming agent, 1% odorless bridging agent, 1% zinc oxide powder, 1% stearic acid, 2% colorant, and 4% deammoniation agent; the odorless bridging agent is BIBP.

[0045] Example 3

[0046] A manufacturing process for a non-inflatable soccer ball includes the following steps:

[0047] S1. Weigh the main material rubber granules and auxiliary materials. Add the auxiliary materials to the main material rubber granules and mix evenly. Then put the mixture into a mixer and heat it to 125°C. Stir and mix for 15 minutes to obtain the mixture. Set aside for later use.

[0048] S2. Transfer the mixture to a two-roll mill and mill it at 80°C for 6 minutes. Discharge the material to obtain flakes for later use.

[0049] S3. Cut the material flakes into pellets of a certain size using a pelletizer, and set aside.

[0050] S4. Weigh 210g of granules, add the granules into the mold of the foaming machine and heat to 200℃ for solid foaming for 50 minutes to obtain blank balls for later use.

[0051] S5. Polish the surface of the blank ball until smooth, and set aside.

[0052] S6. Place the polished blank ball on the molding machine and heat it to 200℃ for 55 minutes for secondary foaming and molding, then set aside.

[0053] S7. Clean and finish the surface of the soccer ball after secondary foaming to obtain a semi-finished soccer ball for later use.

[0054] S8. Vacuum transfer printing, color painting, and logo are applied to the surface of the semi-finished soccer ball to obtain the finished soccer ball.

[0055] In step S1, the weight ratio of the main material granules to the auxiliary materials is 7:3. The main material granules are POE granules.

[0056] The excipients include the following raw materials in weight percentage: 4% calcium carbonate, 6% AC foaming agent, 3% odorless bridging agent, 3% zinc oxide powder, 3% stearic acid, 4% colorant, and 6% deammoniation agent; the odorless bridging agent is BIBP.

[0057] Example 4

[0058] A manufacturing process for a non-inflatable soccer ball includes the following steps:

[0059] S1. Weigh the main material rubber granules and auxiliary materials. Add the auxiliary materials to the main material rubber granules and mix evenly. Then put the mixture into a mixer and heat it to 128°C. Stir and mix for 18 minutes to obtain the mixture. Set aside for later use.

[0060] S2. Transfer the mixture to a two-roll mill and mill it at 83°C for 7 minutes. Discharge the material to obtain flakes for later use.

[0061] S3. Cut the material flakes into pellets of a certain size using a pelletizer, and set aside.

[0062] S4. Weigh 210g of granules, add the granules into the mold of the foaming machine and heat to 210℃ for solid foaming for 55 minutes to obtain blank balls for later use.

[0063] S5. Polish the surface of the blank ball until smooth, and set aside.

[0064] S6. Place the polished blank ball on the molding machine and heat it to 205℃ for 58 minutes for secondary foaming and molding, then set it aside.

[0065] S7. Clean and finish the surface of the soccer ball after secondary foaming to obtain a semi-finished soccer ball for later use.

[0066] S8. Vacuum transfer printing, color painting, and logo are applied to the surface of the semi-finished soccer ball to obtain the finished soccer ball.

[0067] In step S1, the weight ratio of the main material granules to the auxiliary materials is 9:4. The main material granules are EVA granules.

[0068] The excipients include the following raw materials in weight percentage: 6% calcium carbonate, 8% AC foaming agent, 4% odorless bridging agent, 4% zinc oxide powder, 4% stearic acid, 5% colorant, and 8% deammoniation agent; the odorless bridging agent is BIBP.

[0069] Example 5

[0070] A manufacturing process for a non-inflatable soccer ball includes the following steps:

[0071] S1. Weigh the main material rubber granules and auxiliary materials. Add the auxiliary materials to the main material rubber granules and mix evenly. Then put them into a mixer and heat to 130°C. Stir and mix for 20 minutes to obtain the mixture. Set aside for later use.

[0072] S2. Transfer the mixture to a two-roll mill and mill it at 85°C for 8 minutes. Discharge the material to obtain flakes for later use.

[0073] S3. Cut the material flakes into pellets of a certain size using a pelletizer, and set aside.

[0074] S4. Weigh 210g of granules, add the granules into the mold of the foaming machine and heat to 220℃ for solid foaming for 60 minutes to obtain blank balls for later use.

[0075] S5. Polish the surface of the blank ball until smooth, and set aside.

[0076] S6. Place the polished blank ball on the molding machine and heat it to 210℃ for 60 minutes for secondary foaming and molding, then set it aside.

[0077] S7. Clean and finish the surface of the soccer ball after secondary foaming to obtain a semi-finished soccer ball for later use.

[0078] S8. Vacuum transfer printing, color painting, and logo are applied to the surface of the semi-finished soccer ball to obtain the finished soccer ball.

[0079] In step S1, the weight ratio of the main material granules to the auxiliary materials is 10:5. The main material granules are EVA granules.

[0080] The excipients include the following raw materials in weight percentage: 10% calcium carbonate, 10% AC foaming agent, 5.0% odorless bridging agent, 5.0% zinc oxide powder, 5.0% stearic acid, 6.0% colorant, and 10% deammoniation agent; the odorless bridging agent is BIBP.

[0081] Comparative Example 1

[0082] The difference between this comparative example and Example 3 above is that PU polyurethane granules are used instead of the main material granules in this comparative example. The rest of the contents of this comparative example are the same as in Example 3, and will not be repeated here.

[0083] The circumference, 20°C rebound height, weight, 72H air leakage rate, and water absorption rate of the soccer balls prepared in Specific Example 3, Comparative Example 1, and existing PU soccer balls were tested using the FIFA QUALITY PRO testing standards. The delamination test was performed using 3M adhesive and visual inspection. The results are shown in Table 1.

[0084] Table 1

[0085] project Example 3 Comparative Example 1 PU soccer ball Circumference (cm) 42 44 45 Rebound height (cm) 100 85 80 Weight (g) 130 147 165 Leakage rate (%) 0 0 0 Water absorption rate (%) 0 0 0 Delamination (%) 0 0 0

[0086] As can be seen from Example 3, the superhydrophobic coating prepared by the present invention has excellent superhydrophobic properties.

[0087] As can be seen from the above results, the soccer ball prepared in Example 3 of the present invention is lightweight, has good resilience, and has excellent anti-leakage, hydrophobic and anti-delamination properties. It is low in cost and easy to manufacture. Moreover, the non-inflatable soccer ball can be recycled and reused after use, making it environmentally friendly and pollution-free.

[0088] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A manufacturing process for a non-inflatable soccer ball, characterized in that: Includes the following steps: S1. Weigh the main material rubber granules and auxiliary materials. Add the auxiliary materials to the main material rubber granules and mix evenly. Then put the mixture into a mixer, heat and stir to obtain a mixture for later use. S2. Transfer the mixture to the open mill for open milling, and discharge the material to obtain flakes for later use; S3. Cut the material flakes into granules of a certain size using a pelletizer, and set aside. S4. Weigh the granules and add them into the mold of the foaming machine for solid foaming to obtain blank balls for later use. S5. Polish the surface of the blank ball until smooth, and set aside. S6. Place the polished blank ball on the molding machine for secondary foaming molding, and set aside. S7. Clean and finish the surface of the soccer ball after secondary foaming to obtain a semi-finished soccer ball for later use. S8. Vacuum transfer printing, color painting, and logo are applied to the surface of the semi-finished soccer ball to obtain the finished soccer ball; In step S4, the temperature during solid foaming is 180-220℃, and the foaming time is 40-60 minutes. In step S6, the temperature during the second foaming is 190-210℃, and the foaming time is 50-60 minutes. The main material granules are at least one of EVA granules, TPE granules, and POE granules; The auxiliary materials include the following raw materials in weight percentage: calcium carbonate 1-10%, AC foaming agent 1-10%, odorless bridging agent 0.2-5.0%, zinc oxide powder 0.3-5.0%, stearic acid 0.3-5.0%, colorant 0-6.0%, and deammoniation agent 1-10%.

2. The manufacturing process of a non-inflatable soccer ball according to claim 1, characterized in that: In step S1, the mixing temperature is 120-130℃ and the mixing time is 10-20 minutes.

3. The manufacturing process of a non-inflatable soccer ball according to claim 1, characterized in that: In step S2, the temperature during the initial refining process is 75-85℃, and the refining time is 4-8 minutes.

4. The manufacturing process of a non-inflatable soccer ball according to claim 1, characterized in that: In step S1, the weight ratio of the main material granules to the auxiliary materials is 5-10:0.4-5.

5. The manufacturing process of a non-inflatable soccer ball according to claim 1, characterized in that: The auxiliary materials include the following raw materials in weight percentage: calcium carbonate 1-10%, AC foaming agent 1-10%, odorless bridging agent 0.2-5.0%, zinc oxide powder 0.3-5.0%, stearic acid 0.3-5.0%, colorant 0.2-6.0%, and deammonigenin 1-10%.

6. The manufacturing process of a non-inflatable soccer ball according to claim 1 or 5, characterized in that: The odorless bridging agent is BIBP.