An apparatus for manufacturing a fitness ball

Abstract

A kind of manufacturing device of fitness ball, the fitness ball includes inflatable inner bag, elastic layer covered in inflatable inner bag outside, elastic layer uses PU foaming integrated molding, inflatable inner bag is fixed with a gas door nozzle, elastic layer is equipped with guide hole corresponding gas door nozzle position;The manufacturing device includes upper die, lower die, upper die and lower die are closed to form the cavity of spherical shape, inflatable inner bag is built-in at the center of cavity after being inflated, the center of cavity bottom is equipped with positioning rod, positioning rod upper part is matched and is inserted into the gas door nozzle of inflatable inner bag, cavity lower part is evenly equipped with support rod and is supported to the lower part of inflatable inner bag.Working, inflatable inner bag is positioned in the center of cavity using positioning rod and support rod, then foaming material is injected into cavity, and integrated elastic layer is formed on the surface of inflatable inner bag after foaming material expansion.The elastic layer of the surface of the fitness ball uses PU foaming integrated molding, compared with patch type structure, the covering effect is more firm, overall structure is stable, and it is not easy to separate.

Description

Technical Field

[0001] This utility model relates to a device for making a fitness ball. Background Technology

[0002] With the increasing demand for fitness, various fitness equipment has emerged, among which exercise balls are the most common. Structurally, an exercise ball consists of a bladder and a surface. The bladder can be hollow or solid, while the surface uses a patch-type structure. Patch-type surfaces are usually glued to the bladder surface with hot melt adhesive, resulting in seams. This not only complicates the assembly process but also makes the surface prone to peeling and detachment during use. Utility Model Content

[0003] To address the shortcomings mentioned above, this utility model provides a fitness ball and its manufacturing device.

[0004] To achieve the above objectives, this utility model provides a fitness ball, including an inflatable inner bladder and an elastic layer covering the outer surface of the inflatable inner bladder. The elastic layer is integrally molded using PU foam. An air valve is fixed on the inflatable inner bladder, and a guide hole is provided on the elastic layer corresponding to the position of the air valve.

[0005] As a further improvement of this utility model, process holes are symmetrically formed on the elastic layer with the guide hole as the center.

[0006] This utility model also provides a device for making a fitness ball, including an upper mold and a lower mold. The upper mold and the lower mold are joined to form a spherical cavity. An inflatable inner bladder is inflated and placed in the center of the cavity. A positioning rod is provided at the center of the bottom of the cavity. The upper part of the positioning rod extends into the valve of the inflatable inner bladder. Support rods are evenly provided at the bottom of the cavity to support the lower part of the inflatable inner bladder.

[0007] As a further improvement of this utility model, both the support rod and the positioning rod are arranged vertically.

[0008] As a further improvement of this utility model, five support rods are evenly arranged around the positioning rod.

[0009] As a further improvement of this utility model, the lower part of the support rod is threadedly connected and fixed to the lower mold, and the upper part of the support rod is machined into an arc head.

[0010] As a further improvement of this utility model, the lower part of the positioning rod is threadedly connected and fixed to the lower mold.

[0011] As a further improvement of this utility model, both the support rod and the positioning rod are made of metal.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The elastic layer on the surface of this fitness ball is made of PU foam in one piece, which provides a more solid covering effect compared to the patch structure. The overall structure is stable, there are no seams, and it is not easy to fall off.

[0014] 2. This device uses positioning and support rods at the bottom of the cavity. The positioning rod is inserted into the valve on the inflatable inner liner for overall positioning and also provides a guide hole for subsequent inflation. The support rod provides stable support to the bottom of the inflatable inner liner and prevents shaking. The device has a simple structure, accurate positioning, and is easy to demold after the fitness ball is formed. It is convenient to operate and highly practical. Attached Figure Description

[0015] Figure 1 This is a center cross-sectional view of a fitness ball according to the present invention;

[0016] Figure 2 This is a front view of a device for manufacturing a fitness ball according to the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Inflatable inner liner; 2. Valve nozzle; 3. Elastic layer; 31. Guide hole; 32. Process hole; 4. Upper mold; 5. Lower mold; 6. Cavity; 7. Positioning rod; 8. Support rod. Detailed Implementation

[0019] like Figure 1 As shown, the fitness ball of this utility model includes an inflatable inner bladder 1 and an elastic layer 3 covering the outer side of the inflatable inner bladder 1. The elastic layer 3 is integrally molded with PU foam. An air valve 2 is fixed on the inflatable inner bladder 1. A guide hole 31 is provided on the elastic layer 3 corresponding to the position of the air valve 2. Process holes 32 are symmetrically formed on the elastic layer 3 with the guide hole 31 as the center.

[0020] The elastic layer on the surface of this fitness ball is made of PU foam in one piece, which provides a more secure covering effect compared to patch-type structures. The overall structure is stable, there are no seams, and it is not easy to come apart.

[0021] like Figure 2As shown, the present invention provides a device for manufacturing the aforementioned fitness ball, comprising an upper mold 4 and a lower mold 5. The upper mold 4 and the lower mold 5 are joined to form a spherical cavity 6. An inflatable inner liner 1, after being inflated, is placed inside the center of the cavity 6. A positioning rod 7 is provided at the center of the bottom of the cavity 6. The upper part of the positioning rod 7 extends into the valve 2 of the inflatable inner liner 1. Support rods 8 are evenly distributed at the bottom of the cavity 6 to support the lower part of the inflatable inner liner 1. Both the support rods 8 and the positioning rods 7 are vertically arranged and are made of metal. Five support rods 8 are evenly distributed around the positioning rod 7. The lower part of the support rods 8 is threadedly connected and fixed to the lower mold 5. The upper part of the support rods 8 is machined into an arc head. The lower part of the positioning rods 7 is threadedly connected and fixed to the lower mold 5 (see...). Figure 3 ).

[0022] This device uses positioning and support rods at the bottom of the cavity. The positioning rod is inserted into the valve on the inflatable inner liner for overall positioning and also provides a guide hole for subsequent inflation. The support rod provides stable support to the bottom of the inflatable inner liner and prevents shaking. The device has a simple structure, accurate positioning, and is easy to demold after the fitness ball is formed. It is convenient to operate and highly practical.

[0023] In the specific processing, the description is based on the accompanying drawings for ease of understanding of this utility model;

[0024] During operation, the upper and lower molds are initially open. First, the inflatable inner bladder is filled with air to form a spherical structure. Then, the inflated inner bladder is placed into the lower mold. The upper part of the positioning rod extends into the inflation nozzle of the inner bladder, and the support rod evenly abuts against the lower spherical surface of the inner bladder, allowing the inflated bladder to sway. The positioning rod and support rod work together to suspend and position the inner bladder in the center of the cavity. After the upper and lower molds are closed, foaming material is injected into the cavity. After the foaming material expands, it forms an integral elastic layer on the surface of the inner bladder. After the product is formed, the upper mold is opened, and the fitness ball is removed from the lower mold. Since the positioning rod and support rod are both vertical structures and made of metal, demolding is convenient. Guide holes are formed on the elastic layer relative to the positioning rod for subsequent inflation guidance, and process holes are formed on the elastic layer relative to the support rod.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for manufacturing a fitness ball, characterized in that: The device includes an upper mold (4) and a lower mold (5). The upper mold (4) and the lower mold (5) are joined to form a spherical cavity (6). After inflation, the inflatable inner liner (1) is placed inside the center of the cavity (6). A positioning rod (7) is provided at the center of the bottom of the cavity (6). The upper part of the positioning rod (7) is inserted into the valve (2) of the inflatable inner liner (1). Support rods (8) are evenly provided at the bottom of the cavity (6) to support the lower part of the inflatable inner liner (1). The support rods (8) and the positioning rods (7) are both vertically arranged. The lower part of the support rod (8) is threadedly connected and fixed to the lower mold (5). The upper part of the support rod (8) is machined into an arc head. The lower part of the positioning rod (7) is threadedly connected and fixed to the lower mold (5).

2. The manufacturing apparatus according to claim 1, characterized in that: The support rod (8) is provided with 5 rods evenly arranged around the positioning rod (7).

3. The manufacturing apparatus according to claim 1, characterized in that: Both the support rod (8) and the positioning rod (7) are made of metal.

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