A machine-stitched basketball with a string and vulcanization mold thereof

Abstract

The utility model relates to a kind of machine-pasted basketball of stem line and vulcanization mould thereof, comprising: air bladder, protective layer, rubber layer and multiple leather, the protective layer and rubber layer are sequentially wrapped in the outer surface of the air bladder, first adhesive layer is equipped between the air bladder with the protective layer, recess is equipped on the outer surface of the rubber layer, the recess separates the outer surface of the rubber layer into multiple patch area, multiple leather is attached on the patch area, and second adhesive layer is equipped between the leather with the rubber layer.The utility model makes recess and rubber layer integrated molding, eliminates the process such as separately making stem line, gluing, pasting stem line in traditional technology, simplifies production process, shortens production cycle, and reduces production cost;At the same time, fundamentally solve the problem that basketball stem line is easy to fall off and crack;Leather and recess are seamlessly connected, form the stem line touch of natural transition, retain traditional basketball stem line perception, and avoid leather edge problem of hand pressing.

Description

Technical Field

[0001] This utility model relates to the field of basketball, specifically to a machine-applied basketball with a stem and its vulcanization mold. Background Technology

[0002] As a widely used sporting good, the structure and manufacturing process of basketballs directly affect their performance and appearance. Traditional basketball production has some shortcomings. Some basketballs use a manual bonding process, which is not only inefficient and costly in terms of labor, but also prone to problems such as wrinkles in the skin and overlapping edges during the bonding process, affecting the consistency of appearance.

[0003] Although some basketballs use a machine-applied gluing process, the struts on basketballs are mostly glued on later, which results in problems such as the struts not being firmly connected to the ball and being prone to coming unglued and falling off. Utility Model Content

[0004] In view of the above problems, this utility model provides a machine-attached basketball with a stem and its vulcanization mold, which solves the problems of cumbersome manufacturing process and easy delamination and detachment of the basketball stem.

[0005] To achieve the above objectives, in a first aspect, the applicant provides a machine-attached basketball with a strut, comprising: an air bladder, a protective layer, a rubber layer, and multiple ball skins, wherein the protective layer and the rubber layer are sequentially wrapped around the outer surface of the air bladder, a first adhesive layer is provided between the air bladder and the protective layer, and a protrusion is provided on the outer surface of the rubber layer, the protrusion dividing the outer surface of the rubber layer into multiple patch areas, the multiple ball skins are attached to the patch areas, and a second adhesive layer is provided between the ball skins and the rubber layer.

[0006] Preferably, the thickness of the protrusion is 0.5-1.8 mm and the width of the protrusion is 3-4 mm.

[0007] Preferably, the protrusion and the rubber layer are integrally formed.

[0008] Preferably, the thickness of the ball skin is greater than the thickness of the protrusion.

[0009] Preferably, the protective layer is a yarn layer or a cloth layer, the yarn layer comprising yarn wound around the outer surface of the air bladder, and the cloth layer comprising at least one cloth sheet adhered to the air bladder.

[0010] Preferably, the yarn is one or more of cotton yarn, staple fiber yarn, nylon yarn, polyester yarn, and nylon yarn.

[0011] Preferably, the outer edge of the ball skin is provided with a beveled portion at an angle, the width of the beveled portion is 4-6mm, and the thickness of the beveled portion is 0.4-1mm.

[0012] In a second aspect, this utility model also provides a vulcanizing mold for manufacturing a machine-applied basketball. The vulcanizing mold is used to manufacture a machine-applied basketball with a stem, as described in the first aspect. The vulcanizing mold includes an upper mold and a lower mold, which are hinged together. Both the upper and lower molds are hollow, and cooling devices are provided in the hollow areas of both molds. The upper mold has an upper air outlet that communicates with the hollow area of ​​the upper mold, and the lower mold has a lower air outlet that communicates with the hollow area of ​​the lower mold. The inner walls of both the upper and lower molds are provided with grooves, which are used to form the protrusions on the outer surface of the rubber layer. After the upper and lower molds are closed, a cavity for accommodating the basketball is formed. An inflation duct is provided through the lower mold and communicates with the cavity. One end of the inflation duct is positioned opposite the air inlet of the basketball, and the air inlet is located on the patch area.

[0013] In some embodiments, the vulcanizing mold further includes an inflation head, which includes an inflation body and a card, the card being movably sleeved on the inflation body; and an accommodating groove for accommodating the card is provided on the outer edge of the end of the inflation duct near the chamber.

[0014] Unlike existing technologies, the above-mentioned technical solution has the following advantages: By integrally molding the groove and the rubber layer, this utility model eliminates the need for separate processes such as making the groove, applying glue, and pasting the groove in traditional processes, simplifying the production process, shortening the production cycle, and reducing production costs. At the same time, it fundamentally solves the problem of basketball grooves easily falling off and cracking. The seamless connection between the ball skin and the basketball groove creates a natural transition in the groove feel, retaining the traditional feel of the groove while avoiding the problem of the ball skin edge digging into the hand. This results in a coordinated feel when dribbling, passing, and shooting, without affecting the user's usage habits.

[0015] The above description of the utility model is merely an overview of the technical solution of this utility model. In order to enable those skilled in the art to better understand the technical solution of this utility model and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this utility model easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this utility model. Attached Figure Description

[0016] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of the present invention and other related contents, and should not be considered as limitations on the present invention.

[0017] In the accompanying drawings of the instruction manual:

[0018] Figure 1 This is a schematic diagram of the machine-attached basketball described in this embodiment;

[0019] Figure 2 This is a cross-sectional view of the machine-attached basketball described in this embodiment;

[0020] Figure 3 This is a schematic diagram of the machine-attached basketball described in this embodiment;

[0021] Figure 4 This is a schematic diagram of the ball skin described in this embodiment;

[0022] Figure 5 This is a schematic diagram of the vulcanizing mold described in this embodiment;

[0023] Figure 6 This is a schematic diagram of the inflation head described in this embodiment.

[0024] The reference numerals used in the above figures are explained as follows:

[0025] 1. Air bladder; 2. First adhesive layer; 3. Protective layer; 4. Rubber layer; 41. Protrusion; 5. Second adhesive layer; 6. Ball skin; 61. Beveled edge; 7. Upper mold; 71. Lower mold; 8. Inflator head; 81. Inflator head body; 82. Card; 9. Hollow area; 10. Inflatable air duct. Detailed Implementation

[0026] To illustrate in detail the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this utility model, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this utility model and are therefore intended to limit the scope of protection of this utility model.

[0027] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0028] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0029] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0030] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0031] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0032] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0033] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0034] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0035] Please see Figures 1 to 4 This embodiment provides a machine-attached basketball with a strut, comprising: an air bladder 1, a protective layer 3, a rubber layer 4, and multiple ball skins 6. The protective layer 3 and the rubber layer 4 are sequentially wrapped around the outer surface of the air bladder 1. A first adhesive layer 2 is provided between the air bladder 1 and the protective layer 3. A protrusion 41 is provided on the outer surface of the rubber layer 4, and the protrusion 41 divides the outer surface of the rubber layer 4 into multiple patch areas. Multiple ball skins 6 are attached to the patch areas, and a second adhesive layer 5 is provided between the ball skins 6 and the rubber layer 4.

[0036] The air bladder 1 is the core inflation component of the basketball, made of synthetic rubber, possessing excellent airtightness. It provides internal air pressure support for the basketball and is fundamental to maintaining its shape and elasticity. The protective layer 3, located on the outer surface of the air bladder 1, is a structural reinforcement layer encasing it. Its function is to enhance the structural stability of the air bladder 1, preventing excessive deformation or rupture under external impact, and simultaneously providing an adhesion base for the subsequent rubber layer 4. The rubber layer 4, located outside the protective layer 3, is made of rubber material and possesses a certain degree of elasticity and hardness. It provides the basic outline of the basketball, and the protrusions 41 on the outer surface of the rubber layer 4 form the basketball's struts.

[0037] The outer shell 6 is the outer structure of the basketball, made of any one of PVC, PU, ​​microfiber PU, or genuine leather. The first adhesive layer 2 is an adhesive layer located between the air bladder 1 and the protective layer 3. It is formed by applying a water-based adhesive to the outer surface of the air bladder 1 and is used to firmly adhere the protective layer 3 to the outer surface of the air bladder 1, preventing relative sliding or separation between the protective layer 3 and the air bladder 1, and ensuring the integrity of the structure.

[0038] The protrusion 41 is a raised structure set on the outer surface of the rubber layer 4. It also serves as the frame of the basketball, dividing the rubber layer 4 into multiple areas to fit the ball skin 6.

[0039] The second adhesive layer 5 is an adhesive layer located between the ball skin 6 and the rubber layer 4. It is formed by applying water-based adhesive to the outer surface of the rubber layer 4 and is used to firmly attach the ball skin 6 to the patch area of ​​the rubber layer 4 to ensure that the ball skin 6 will not fall off or lift during the use of the basketball.

[0040] Specifically, after the air bladder 1 is inflated, it provides internal support for the entire basketball; the protective layer 3 wraps around the outside of the air bladder 1 and is tightly bonded to the air bladder 1 through the first adhesive layer 2. It uses its own strength and toughness to enhance the basketball's impact resistance and structural stability, preventing the air bladder 1 from being damaged by direct force; the rubber layer 4 wraps around the outside of the protective layer 3. Its own material properties give the basketball a certain degree of elasticity and shape retention. The protrusions 41 on the outer surface of the rubber layer 4 not only form the struts, but also divide the outer surface of the rubber layer 4 into multiple patch areas, providing precise positioning for the machine-applied ball skin 6; the ball skin 6 is attached to the corresponding patch area through the second adhesive layer 5. The presence of the protrusions 41 allows the edge of the ball skin 6 to precisely match the edge of the protrusions 41, ensuring that the ball skin 6 will not easily lift up during the use of the basketball.

[0041] In this embodiment, the protrusions 41 on the outer surface of the rubber layer 4 form the strut. Compared to the struts that are glued on later in traditional basketballs, the protrusions 41 (struts) that are integrally formed with the rubber layer 4 are more secure, fundamentally solving the problem of struts easily coming unglued and falling off. At the same time, during the machine bonding process, the ball skin 6 can be precisely positioned and bonded according to the protrusions 41, avoiding problems such as wrinkles, overlaps, and positional misalignment that are prone to occur when manually bonding the ball skin 6. The ball skin 6 and the struts (protrusions 41) are seamlessly connected, resulting in a smoother and more aesthetically pleasing appearance, meeting consumers' demands for the appearance of basketballs.

[0042] In this embodiment, the thickness of the protrusion 41 is 0.5-1.8 mm, and the width of the protrusion 41 is 3-4 mm.

[0043] The thickness of the protrusion 41 refers to the height of the protrusion 41 in the vertical direction. Setting the thickness of the protrusion 41 to 0.5-1.8mm can ensure that the protrusion 41 (strap) has obvious visual and tactile effects, and will not affect the structural strength of the rubber layer 4 due to the excessive thickness of the protrusion 41.

[0044] The width of protrusion 41 refers to the horizontal dimension of protrusion 41 on the outer surface of rubber layer 4. The width of protrusion 41 ranges from 3 to 4 mm, which is in harmony with the overall size of the basketball and can form an aesthetically pleasing and harmonious spine appearance.

[0045] Specifically, the thickness and width of the protrusion 41 can be set according to the usage requirements and appearance design of the basketball, and are not a fixed range.

[0046] When the thickness of the protrusion 41 is 0.5-1.8mm, the spine is clearly visible, allowing users to clearly perceive its presence, which conforms to the usage habits and feel of traditional basketballs. At the same time, the thickness is not too large, which would make the rubber layer 4 too thin in this part, affecting the overall strength and durability of the rubber layer 4.

[0047] When the width of the protrusion 41 is 3-4mm, it matches the edge size of the ball skin 6. The edge of the ball skin 6 can fit well with the protrusion 41. During the machine bonding process, the edge of the ball skin 6 can accurately align with the protrusion 41, ensuring the flatness of the ball skin 6 after bonding. At the same time, the protrusion 41 (stalk line) of this width is in harmony with the overall proportion of the basketball in appearance, which meets the aesthetic needs of consumers.

[0048] In some embodiments, the width of the protrusion 41 is 4.5-6 mm.

[0049] In some embodiments, the width of the protrusion 41 is 3-5 mm.

[0050] In this embodiment, the protrusion 41 and the rubber layer 4 are integrally formed.

[0051] The integral molding of protrusion 41 and rubber layer 4 means that protrusion 41 is not formed by post-processing (such as cutting, pasting, etc.) after the rubber layer 4 is made. Instead, it is formed by pre-setting a recessed structure corresponding to the shape of protrusion 41 on the vulcanization mold of rubber layer 4. During the vulcanization process of rubber layer 4, protrusion 41 corresponding to the mold groove is naturally formed on the outer surface of rubber layer 4.

[0052] The protrusion 41 and the rubber layer 4 are integrally molded, with no connection interface between them. This avoids the problems of glue separation and detachment that may occur when the core is glued on later. The lifespan of the core is the same as that of the rubber layer 4, which greatly improves the overall durability of the basketball. At the same time, it eliminates the traditional processes of separately making the core, applying glue, and gluing the core, simplifying the production process, shortening the production cycle, and reducing production costs.

[0053] In this embodiment, the thickness of the ball skin 6 is greater than the thickness of the protrusion 41. When the ball skin 6 is attached to the rubber layer 4, since the thickness of the ball skin 6 is greater than the thickness of the protrusion 41, a groove will be formed between adjacent ball skins 6. At this time, the top of the protrusion 41 serves as the bottom wall of the groove, and the edge of the ball skin 6 serves as the side wall of the groove.

[0054] The finished basketball has a grooved surface that enhances the user's grip and improves the comfort of using the basketball.

[0055] In this embodiment, the protective layer 3 is a yarn layer or a cloth layer. The yarn layer includes yarn wrapped around the outer surface of the air bladder 1, and the cloth layer includes at least one cloth sheet that is adhered to the air bladder 1.

[0056] The yarn wrapping layer is a type of protective layer 3, formed by covering the outer surface of the air bladder 1 with yarn in a certain winding manner (such as spiral winding, cross winding, etc.). The yarns intertwine to form a tight mesh structure that can evenly wrap the air bladder 1.

[0057] The cloth layer is another type of protective layer 3, consisting of one or more pieces of cloth. The cloth piece can be a complete piece that wraps around the air bladder 1, or multiple pieces of cloth can be stacked to wrap around the air bladder 1 and are adhered to the outer surface of the air bladder 1 through the first adhesive layer 2.

[0058] The fabric can be any one or more of the following: non-woven fabric, polyester fabric, cotton fabric, acrylic fabric, and cotton-polyester blended fabric.

[0059] Specifically, the winding layer binds the air bladder 1 by wrapping the yarn around it. When the air bladder 1 inflates, the yarn in the winding layer is under tension. Because the yarn has high strength, it can resist the expansion force of the air bladder 1, thereby limiting excessive expansion and maintaining the stable shape of the basketball. At the same time, the interlacing structure between the yarns can evenly distribute the external force across the entire surface of the air bladder 1, reducing damage to the air bladder 1 caused by excessive local stress.

[0060] The fabric layer, through its covering and adhesion, provides a physical barrier for the air bladder 1, buffering the direct impact of external forces. The fabric itself has a certain degree of toughness and tear resistance; when the basketball is impacted, the fabric layer can absorb some of the impact force, reducing the damage to the air bladder 1.

[0061] The yarn and fabric layers effectively limit the excessive expansion of the air bladder 1, ensuring that the basketball maintains a stable shape under different air pressures and improving its performance.

[0062] In this embodiment, the yarn is one or more of cotton yarn, staple fiber yarn, nylon yarn, polyester yarn, and nylon yarn.

[0063] Different types of yarn have different physical and chemical properties.

[0064] Nylon and polyester yarns are high in strength and abrasion resistance. When wound around the air bladder 1, they can provide stronger binding force and impact resistance. Cotton yarn is soft, tough, and low in cost, making it suitable for basketballs where cost control is strict and strength requirements are not extremely high. Short fiber yarns have a compact structure and can form a uniform winding layer, ensuring that the air bladder 1 is subjected to uniform force during use.

[0065] When multiple yarns are used in combination, the advantages of each yarn can be combined. For example, when nylon yarn is mixed with cotton yarn, the high strength of nylon yarn can be utilized, as well as the flexibility and low cost of cotton yarn. This ensures that the winding layer has sufficient strength while reducing production costs.

[0066] Please see Figure 1 and Figure 4 In this embodiment, the outer edge of the ball skin 6 is provided with a chamfered portion 61, the width of the chamfered portion 61 is 4-6mm, and the thickness of the chamfered portion 61 is 0.4-1mm.

[0067] The beveled edge 61 refers to the inclined part formed after the outer edge of the ball skin 6 is cut, that is, the edge of the ball skin 6 gradually becomes thinner from the outer side to the inner side, forming a sloping structure.

[0068] The width of the chamfered edge 61 refers to the distance from the outermost edge of the ball skin 6 to the junction of the chamfered edge 61 and the main body of the ball skin 6.

[0069] The thickness of the beveled portion 61 refers to the thickness of the thinnest part of the beveled portion 61.

[0070] The width of the beveled portion 61 is set to 4-6mm to ensure that the edge of the ball skin 6 has a sufficient inclined transition area. The thickness of the beveled portion 61 is set to 0.4-1mm. When the ball skin 6 is attached to the patch area through the second adhesive layer 5, the edge of the ball skin 6 (beveled portion 61) will be adjacent to the protrusion 41 of the rubber layer 4, so that the edge of the ball skin 6 can smoothly transition with the protrusion 41 of the rubber layer 4, instead of forming obvious steps or protrusions, which would affect the feel of the basketball.

[0071] In some embodiments, the ball skin 6 is not provided with a chamfered edge, that is, the edge of the ball skin 6 is not cut and is directly attached to the patch area on the rubber layer 4.

[0072] In the second aspect, please refer to Figure 5 and Figure 6This embodiment also provides a vulcanizing mold for manufacturing a machine-attached basketball. The vulcanizing mold is used to manufacture a machine-attached basketball with a stem, as described in the first aspect. The vulcanizing mold includes an upper mold 7 and a lower mold 71, which are hinged to each other. Both the upper mold 7 and the lower mold 71 are hollow. Cooling devices are provided in the hollow areas 9 of both the upper mold 7 and the lower mold 71. The upper mold 7 has an upper air outlet that communicates with the hollow area 9 of the upper mold 7. The lower mold 71 has a lower air outlet that communicates with the hollow area 9 of the lower mold 71. The inner walls of both the upper mold and the lower mold are provided with grooves, which are used to form the protrusions 41 on the outer surface of the rubber layer. After the upper mold 7 and the lower mold 71 are closed, a cavity for accommodating the basketball is formed. An inflation duct 10 is provided through the lower mold 71 and communicates with the cavity. One end of the inflation duct 10 is positioned opposite to the air inlet of the basketball, and the air inlet is located on the patch area.

[0073] In this embodiment, the upper mold 7 and the lower mold 71 are preferably hinged steel shells, and the hollow area 9 refers to the sealed cavity inside the mold body. Preferably, the cooling device is a circulation pipe set in the hollow area 9, which is used to introduce steam or cooling water to regulate the vulcanization temperature. The upper and lower air outlets are through holes on the surface of the mold body, which are respectively connected to the hollow area 9 and the outside, and are used to discharge gas to maintain the vulcanization gas pressure balance. The chamber is a spherical space formed by the upper mold 7 and the lower mold 71 after they are closed, which is used to accommodate the basketball semi-finished product to be vulcanized. The air inlet duct 10 is a metal pipe that passes through the lower mold 71, and its end is aligned with the basketball air inlet, which is used to inflate the ball during the vulcanization process and fix the position of the air nozzle. The air inlet is the air inlet of the basketball inner bladder layer 1, which is located on the patch area of ​​the rubber layer 4.

[0074] This embodiment achieves precise control of vulcanization temperature by using a steel vulcanization mold in conjunction with a cooling device inside the hollow zone 9, reducing hardening and surface smoothness defects of the rubber layer caused by high temperature; the upper and lower air outlets work together to balance the vulcanization gas pressure, avoiding poor interlayer adhesion, and comprehensively improving the molding quality and performance consistency of the basketball.

[0075] Please see Figure 6 In some embodiments, the vulcanizing mold further includes an inflation head 8, which includes an inflation body 81 and a card 82, the card 82 being movably sleeved on the inflation body 81; the outer edge of the end of the inflation duct 10 near the chamber is provided with a receiving groove for receiving the card 82.

[0076] In this embodiment, the inflation head 8 refers to the inflation component that cooperates with the inflation duct 10 in the vulcanizing mold. The inflation body 81 is preferably a metal tubular structure used to conduct the inflation airflow. The card 82 is preferably an annular elastic element that is movably sleeved on the outer wall of the inflation body 81. The receiving groove is an annular groove on the outer edge of the end of the inflation duct 10, used to limit the card 82. The end of the inflation body 81 and the surface of the card 82 are flush, meaning that they are on the same plane.

[0077] This embodiment ensures the positioning accuracy of the air nozzle and the sealing performance of the rubber layer 4 after vulcanization through the coordinated structure of the inflatable body 81, the card 82, and the receiving groove, thereby reducing air leakage or deformation defects after vulcanization.

[0078] Compared with existing technologies, this utility model eliminates the need for separate production processes such as making the grommets, applying glue, and pasting the grommets in traditional processes by integrally molding the protrusion 41 with the rubber layer 4. This simplifies the production process, shortens the production cycle, and reduces production costs. At the same time, it fundamentally solves the problem of basketball grommets easily falling off and cracking. The seamless connection between the ball skin 6 and the protrusion 41 creates a natural transition in the feel of the grommets, retaining the feel of traditional basketball grommets while avoiding the problem of the edges of the ball skin 6 being uncomfortable to hold. This results in a coordinated feel when dribbling, passing, and shooting, without affecting the user's usage habits.

[0079] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this utility model, this should not limit the scope of patent protection of this utility model. Any technical solutions resulting from equivalent structural or procedural substitutions or modifications made based on the essential concept of this utility model and utilizing the content described in the text and drawings of this utility model, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this utility model.

Claims

1. A machine-applied basketball with a strut, characterized in that, include: The system comprises an air bladder, a protective layer, a rubber layer, and multiple ball skins. The protective layer and the rubber layer are sequentially wrapped around the outer surface of the air bladder. A first adhesive layer is provided between the air bladder and the protective layer. The outer surface of the rubber layer has protrusions that divide the outer surface of the rubber layer into multiple patch areas. Multiple ball skins are attached to the patch areas, and a second adhesive layer is provided between the ball skins and the rubber layer.

2. The machine-attached basketball with a strut as described in claim 1, characterized in that, The thickness of the protrusion is 0.5-1.8 mm, and the width of the protrusion is 3-4 mm.

3. A machine-attached basketball with a strut as described in claim 1, characterized in that, The protrusion and the rubber layer are integrally formed.

4. A machine-attached basketball with a strut as described in claim 1, characterized in that, The thickness of the ball skin is greater than the thickness of the protrusion.

5. A machine-attached basketball with a strut as described in claim 1, characterized in that, The protective layer is a yarn layer or a cloth layer. The yarn layer includes yarn wrapped around the outer surface of the air bladder, and the cloth layer includes at least one cloth sheet that is adhered to the air bladder.

6. A machine-attached basketball with a strut as described in claim 5, characterized in that, The yarn is one or more of the following: cotton yarn, staple fiber yarn, nylon yarn, polyester yarn, and nylon yarn.

7. A machine-attached basketball with a strut as described in claim 1, characterized in that, The outer edge of the ball skin is inclined with a beveled portion, the width of which is 4-6mm and the thickness of which is 0.4-1mm.

8. A vulcanizing mold for manufacturing machine-mounted basketballs, characterized in that, The vulcanizing mold is used to manufacture a rubber basketball according to any one of claims 1 to 7; The vulcanizing mold includes an upper mold and a lower mold, which are hinged together. Both the upper mold and the lower mold are hollow. Cooling devices are provided in the hollow areas of both the upper mold and the lower mold. The upper mold has an upper air outlet that is connected to the hollow area of ​​the upper mold. The lower mold has a lower air outlet that is connected to the hollow area of ​​the lower mold. The inner walls of both the upper and lower molds are provided with grooves, which are used to form the protrusions on the outer surface of the rubber layer; After the upper mold and the lower mold are closed, a cavity for accommodating the basketball is formed. The lower mold is provided with an inflation duct that is connected to the cavity. One end of the inflation duct is positioned opposite to the air inlet of the basketball, and the air inlet is located on the patch area.

9. The vulcanizing mold according to claim 8, characterized in that, Also includes: Inflation head; The inflation head includes: an inflation body and a card, wherein the card is movably sleeved on the inflation body; The outer edge of the end of the inflatable duct near the chamber is provided with a receiving groove for accommodating the card.

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