Novel volleyball liner structure and forming die

Abstract

The utility model discloses a novel volleyball inner container structure which comprises an inner container, the inner container is integrally formed by a first forming block and a second forming block, and each of the first forming block and the second forming block is provided with an outer welt and two inner welts. A plurality of adjacent first forming blocks are attached to one another through the inner welts, a plurality of adjacent second forming blocks are also attached to one another through the inner welts, and the adjacent first forming blocks and the adjacent second forming blocks are attached to one another through the outer welts. The volleyball inner container is integrally formed through rubber materials at high temperature and high pressure, splicing links are reduced, the problems that in a traditional splicing production process, the splicing positions are prone to abrasion, cracking and the like are solved, the air tightness and durability of the inner container are enhanced, the integrally-formed production process is simple, the production period is short, the production cost is low, and the volleyball inner container is suitable for popularization and application. And the sizes of the produced liners can be kept consistent to the maximum extent, so that the production quality and the production efficiency can be both considered.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment, specifically to a novel volleyball inner bladder structure and molding die. Background Technology

[0002] As a core component of the volleyball, the bladder's structure directly affects the ball's airtightness, elasticity, and lifespan. Current examinations, tests, competitions, and training place stringent demands on volleyball performance, requiring the bladder to meet indicators such as impact resistance, fatigue resistance, and dimensional stability.

[0003] In existing processes, volleyball bladder production often employs a multi-piece splicing structure, which consists of 8-16 rubber sheets that are hot-pressed or sewn together. The splicing of multiple parts and the use of multiple layers of materials increase the complexity of the production process. The splicing points are prone to wear and cracking, which leads to a decrease in the airtightness and elasticity of the bladder. Moreover, the manufacturing process relies on manual cutting and splicing, resulting in a long production cycle, high production costs, and poor dimensional consistency, making it difficult to balance quality and production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a novel volleyball inner bladder structure and molding die to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A novel volleyball inner bladder structure includes an inner bladder with multiple integrally formed components. Each component consists of a first component and a second component. Each first and second component has an outer edge and two inner edges. Several adjacent first components are bonded to each other through the inner edges, and several adjacent second components are also bonded to each other through the inner edges. Adjacent first and second components are bonded to each other through the outer edges.

[0007] In a further embodiment, grooves are provided at the mating edges of adjacent constituent blocks.

[0008] In a further embodiment, one of the constituent blocks is provided with a pre-drilled air nozzle opening.

[0009] Preferably, each of the two adjacent constituent blocks (number one and number two) that are bonded together by their inner edges consists of three pieces.

[0010] Preferably, the total number of constituent blocks is 18.

[0011] A molding die for molding a new type of volleyball inner bladder structure includes a molding die cover, which consists of a hemispherical mold groove and a fixed edge that is vertically and fixed to the top of the outer wall of the mold groove. The fixed edge is provided with an air hole groove that connects the mold groove to the outside.

[0012] In a further embodiment, the inner wall of the hemispherical mold groove is provided with protrusions corresponding to the groove.

[0013] In a further embodiment, a plurality of bolt holes are evenly provided on the fixed edge.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] I. The volleyball inner bladder of this utility model is integrally molded from rubber material under high temperature and pressure, reducing splicing links and avoiding problems such as wear and cracking that are prone to occur at the splicing points in traditional splicing production processes. This enhances the airtightness and durability of the inner bladder. Moreover, the integral molding production process is simple, the production cycle is short, the production cost is low, and the dimensions of each inner bladder produced can be kept as consistent as possible, thus balancing production quality and production efficiency.

[0016] II. The molding die used in this utility model has a cavity design that matches the shape of the inner liner, thereby ensuring the one-time molding quality of the inner liner. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the volleyball inner bladder of this utility model;

[0018] Figure 2 This is a schematic diagram of the shape of the first component block of the volleyball inner bladder of this utility model;

[0019] Figure 3 This is a schematic diagram showing the shape of the second component of the volleyball inner bladder of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the molding die cover of this utility model.

[0021] In the diagram: 1. Inner liner; 2. Component block 1; 3. Component block 2; 4. Groove; 5. Air nozzle pre-reserved opening; 6. Molding mold cover; 7. Fixed edge; 8. Air hole groove; 9. Protrusion; 10. Bolt hole; 11. Mold groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Implementation, for example Figure 1-3As shown, this embodiment provides a novel volleyball inner bladder structure, including an inner bladder 1. The inner bladder 1 is integrally formed from 18 components, namely, a first component 2 and a second component 3. Each component 2 and the second component 3 has an outer edge and two inner edges. Three adjacent components 2 are bonded together by their inner edges, and three adjacent components 3 are also bonded together by their inner edges. Adjacent components 2 and 3 are bonded together by their outer edges. Grooves 4 are provided at the bonding edges of adjacent components. One component has a pre-drilled air nozzle 5. In this embodiment, the volleyball inner bladder 1 is integrally formed from rubber material under high temperature and pressure, reducing splicing steps and avoiding problems such as wear and cracking that easily occur at the splicing points in traditional splicing production processes. This enhances the airtightness and durability of the inner bladder 1. Moreover, the integral molding production process is simple, has a short production cycle, and low production cost. The dimensions of each inner bladder 1 produced can be kept as consistent as possible, thus balancing production quality and efficiency.

[0024] The novel volleyball inner bladder 1 in this embodiment adopts an 18-piece sheet structure design, and the overall shape is three-dimensional, such as... Figure 1 As shown. The inner bladder 1 is made of high-performance rubber material with a special texture and grooves on the surface to enhance airtightness and durability. The edges of the inner bladder 1 are thickened to improve wear resistance. The surface of the inner bladder 1 also features a unique anti-counterfeiting mark, which is ensured by special printing technology or material embedding to guarantee the product's uniqueness and authenticity. In addition, the appearance design of the inner bladder 1 has been carefully optimized, with smooth lines and a reasonable color scheme to enhance its overall aesthetics. The material and surface treatment of the inner bladder 1 have also been specially designed to provide better touch and comfort, allowing players to use it more comfortably and freely.

[0025] like Figure 4 As shown, this embodiment also provides a molding die for molding the new volleyball inner bladder structure. It consists of two identical molding die covers 6 that are detachably sealed together. The molding die cover 6 comprises a hemispherical mold groove 11 and a fixed edge 7 vertically surrounding and fixed to the top of the outer wall of the mold groove 11. The fixed edge 7 has air vents 8 that connect the mold groove 11 to the outside. The inner wall of the hemispherical mold groove 11 has protrusions 9 corresponding to the grooves 4. The fixed edge 7 has a plurality of bolt holes 10 evenly distributed. In this embodiment, the mold cavity design matches the shape of the inner bladder, thereby ensuring the one-time molding quality of the inner bladder 1. The molding die cover 6 is made of high-strength alloy steel, and its surface is specially treated to improve service life and demolding efficiency. The precise mold cavity design ensures the one-time molding quality of the inner bladder, and the molding structure with anti-counterfeiting markings on the mold surface allows the inner bladder to naturally form unique anti-counterfeiting features during the molding process.

[0026] In use, the rubber material is placed into the mold cavity formed by the engagement of two molding mold covers 6. The upper and lower molding mold covers 6 are then sealed together with bolts. High-pressure gas is introduced into the air nozzle 5 on the rubber material within the mold cavity through the air holes formed by the upper and lower air vent grooves 8. The rubber material is vulcanized and molded using high temperature and pressure, allowing the inner liner 1 to be formed in one step, reducing the need for splicing. The special texture and grooves 4 on the surface of the inner liner 1 are formed during the molding process, enhancing its airtightness and durability. Anti-counterfeiting labels are embedded into the surface of the inner liner 1 through the special structure of the mold during molding, ensuring the product's anti-counterfeiting properties. The aesthetics of the inner liner 1 are achieved through a carefully designed appearance and color scheme, while comfort is enhanced through optimized materials and surface treatment.

[0027] Furthermore, in selecting the material for the inner liner, besides high-performance rubber materials, other materials with similar properties, such as thermoplastic elastomers, can be used. For mold materials, in addition to high-strength alloy steel, other high-temperature resistant and high-strength materials, such as cemented carbide, can be used. In terms of molding processes, besides high-temperature and high-pressure vulcanization molding, other suitable molding methods can be employed, such as injection molding. Anti-counterfeiting labels can be implemented through different printing processes or materials, such as laser engraving and electronic chip embedding. The appearance design can be adjusted and optimized according to different market demands and aesthetic trends, employing different line, pattern, and color combinations.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new volleyball inner bag structure, characterized in that: Includes an inner liner (1), the inner liner having multiple constituent blocks and integrally formed, the constituent blocks being composed of a first constituent block (2) and a second constituent block (3), each of the first constituent block (2) and the second constituent block (3) having an outer edge and two inner edges; Among them, several adjacent first-component blocks (2) are attached to each other through inner edges, several adjacent second-component blocks (3) are also attached to each other through inner edges, and adjacent first-component blocks (2) and second-component blocks (3) are attached to each other through outer edges.

2. The new volleyball inner bag structure according to claim 1, characterized in that: The mating edges of adjacent constituent blocks are provided with grooves (4).

3. The new volleyball inner bag structure according to claim 1, characterized in that: One of the constituent blocks has a pre-reserved air nozzle opening (5).

4. The new volleyball inner bag structure according to claim 1, characterized in that: Both adjacent constituent blocks (2) and (3) that are attached to each other by their inner edges are three pieces.

5. The new volleyball inner bag structure according to claim 4, characterized in that: The total number of constituent blocks is 18.

6. A molding die, used for molding the novel volleyball inner bladder structure as described in any one of claims 1-5, characterized in that: It includes a molding mold cover (6), which is composed of a hemispherical mold groove (11) and a fixed edge (7) that is vertically surrounded and fixed to the top of the outer wall of the mold groove (11). The fixed edge (7) is provided with an air hole groove (8) that connects the mold groove (11) to the outside.

7. The molding die according to claim 6, characterized in that: The inner wall of the hemispherical mold groove (11) is provided with a protrusion (9) corresponding to the groove (4).

8. The molding die according to claim 6, characterized in that: Several bolt holes (10) are evenly provided on the fixed edge (7).

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