A device for manufacturing a fitness ball with an outer foreskin.

Abstract

A device for manufacturing an exercise ball with an outer skin is disclosed. The exercise ball includes a core and a patch. The device is used to attach the patch to the surface of the core. It includes an upper mold and a lower mold, which together form a spherical cavity. An upper positioning plate is located on the upper part of the upper mold and forms an upper negative pressure cavity, while a lower positioning plate is located on the lower part of the lower mold and forms a lower negative pressure cavity. The inner wall of the cavity is uniformly machined with upper and lower air holes, respectively connecting to the upper and lower negative pressure cavities. An upper flow channel is machined along the circumference of the cavity in the middle of the upper mold, and a lower flow channel is machined along the circumference of the cavity in the middle of the lower mold. During operation, the patch is coated with adhesive and placed regularly on the inner wall of the cavity, where it is positioned by negative pressure adsorption. Then, the core, coated with adhesive, is placed into the cavity. After the upper and lower molds are closed, hot water is simultaneously injected into the upper and lower flow channels. The core slightly expands and deforms, adhering and positioning itself to the patch. This device can automatically complete the attachment of the core and patch, with accurate positioning, convenient operation, and improved assembly efficiency.

Description

Technical Field

[0001] This utility model relates to a device for manufacturing a fitness ball with an outer cover. 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 core and a surface. The core can be hollow or solid, while the surface often uses a patch-type structure. Currently, the patches are mainly attached to the core surface manually, which is not only inefficient but also makes it difficult to guarantee the accuracy of the patch placement, affecting the quality of the finished product. Utility Model Content

[0003] To address the shortcomings mentioned above, this utility model provides a device for manufacturing a fitness ball with an outer sheath.

[0004] To achieve the above objectives, this utility model provides a device for manufacturing a fitness ball with an outer cover. The fitness ball includes a core, and patches are regularly arranged on the surface of the core to form a spherical surface. The device is used to attach the patches to the surface of the core and includes an upper mold and a lower mold. The upper mold and the lower mold enclose a spherical cavity. An upper positioning plate is disposed on the upper part of the upper mold and encloses an upper negative pressure cavity. A lower positioning plate is disposed on the lower part of the lower mold and encloses a lower negative pressure cavity. The inner wall of the cavity is uniformly machined with upper air holes and lower air holes that are respectively connected to the upper negative pressure cavity and the lower negative pressure cavity. An upper flow channel is machined in the middle of the upper mold along the circumference of the cavity, and a lower flow channel is machined in the middle of the lower mold along the circumference of the cavity.

[0005] As a further improvement of this utility model, the upper negative pressure chamber and the lower negative pressure chamber are respectively connected to an external vacuum generator through an upper connecting pipe and a lower connecting pipe.

[0006] As a further improvement of this utility model, an upper sealing ring is provided at the connection between the upper positioning plate and the upper mold, and a lower sealing ring is provided at the connection between the lower positioning plate and the lower mold.

[0007] As a further improvement of this utility model, the upper mold and the right side of the lower mold are hinged by a rotating shaft, and the left side of the upper mold and the lower mold are locked and positioned by a latch.

[0008] The beneficial effects of this utility model are as follows:

[0009] This device uses negative pressure adsorption to position the patch on the inner wall of the cavity. After the ball core is placed in, hot water is injected into the upper and lower runners to heat the upper and lower molds. This causes the ball core to generate radial tension during micro-expansion, ensuring that the patch and the ball core surface can be firmly adhered. The device is accurate in positioning, easy to operate, and can automatically complete the application process of the ball core and patch, effectively improving assembly efficiency. Attached Figure Description

[0010] Figure 1 A front view of a device for manufacturing a fitness ball with an outer sheath;

[0011] Figure 2 This is the main view after the upper and lower molds are opened;

[0012] Figure 3 for Figure 2 Top view;

[0013] Figure 4 A schematic diagram of the working state of a device for manufacturing a fitness ball with an outer cover;

[0014] Figure 5 The front view of exercise ball 10;

[0015] Figure 6 This is a center sectional view of the exercise ball 10.

[0016] In the diagram: 1. Upper positioning plate; 11. Upper connecting pipe; 12. Upper sealing ring; 2. Upper negative pressure chamber; 3. Upper mold; 31. Upper runner; 32. Upper air hole; 4. Cavity; 5. Rotating shaft; 6. Lower mold; 61. Lower runner; 62. Lower air hole; 7. Lower negative pressure chamber; 8. Lower positioning plate; 81. Lower connecting pipe; 82. Lower sealing ring; 9. Lock; 10. Exercise ball; 101. Ball core; 102. Patch. Detailed Implementation

[0017] like Figure 1-3 As shown, the present invention discloses a device for manufacturing an exercise ball with an outer sheath. The exercise ball 10 includes a core 101, which is made of PU foam. Patches 102 are regularly arranged on the surface of the core 101 to form a spherical surface (see [reference]). Figure 4 , Figure 5 The fabrication apparatus is used to attach the patch 102 onto the surface of the spherical core 101. It includes an upper mold 3 and a lower mold 6, which together form a spherical cavity 4. An upper positioning plate 1 is located on the upper part of the upper mold 3 and forms an upper negative pressure cavity 2. A lower positioning plate 8 is located on the lower part of the lower mold 6 and forms a lower negative pressure cavity 7. The inner wall of the cavity 4 is uniformly machined with upper air holes 32 and lower air holes 62, which respectively connect to the upper negative pressure cavity 2 and the lower negative pressure cavity 7. The negative pressure chamber 7 is connected to an external vacuum generator through the upper connecting pipe 11 and the lower connecting pipe 81. An upper sealing ring 12 is provided at the connection between the upper positioning plate 1 and the upper mold 3, and a lower sealing ring 82 is provided at the connection between the lower positioning plate 8 and the lower mold 6. An upper flow channel 31 is machined in the middle of the upper mold 3 along the circumference of the cavity 4, and a lower flow channel 61 is machined in the middle of the lower mold 6 along the circumference of the cavity 4. The upper mold 3 and the lower mold 6 are hinged on the right side by a rotating shaft 5, and the upper mold 3 and the lower mold 6 are locked and positioned on the left side by a locking buckle 9.

[0018] This device uses negative pressure adsorption to position the patch on the inner wall of the cavity. After the ball core is placed in, hot water is injected into the upper and lower runners to heat the upper and lower molds. This causes the ball core to generate radial tension during micro-expansion, ensuring that the patch and the ball core surface can be firmly adhered. The device is accurate in positioning, easy to operate, and can automatically complete the application process of the ball core and patch, effectively improving assembly efficiency.

[0019] In the specific processing, the description is based on the accompanying drawings for ease of understanding of this utility model;

[0020] During operation, the upper and lower molds are initially in the open state. The side of the patch to be connected to the ball core is coated with glue, and then the other side of the patch is placed on the inner wall of the cavity in a regular pattern. The vacuum generator evacuates the upper and lower negative pressure chambers. The upper and lower negative pressure chambers adsorb and position the patch in the cavity through the upper and lower air holes, respectively. Then, the ball core with glue-coated surface is placed into the cavity. After the upper and lower molds are closed, hot water is injected into the upper and lower runners to heat the upper and lower molds (the water temperature is set as needed). The ball core generates radial tension during the micro-expansion process, ensuring that the patch and the ball core surface can be firmly adhered.

[0021] 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 an exercise ball with an outer sheath, the exercise ball (10) comprising a core (101), and patches (102) regularly disposed on the surface of the core (101) to form a spherical surface, the device being used to attach the patches (102) to the surface of the core (101), characterized in that: The upper mold (3) and the lower mold (6) are enclosed to form a spherical cavity (4). An upper positioning plate (1) is provided on the upper part of the upper mold (3) and encloses to form an upper negative pressure cavity (2). A lower positioning plate (8) is provided on the lower part of the lower mold (6) and encloses to form a lower negative pressure cavity (7). The inner wall of the cavity (4) is uniformly machined with upper air holes (32) and lower air holes (62) which are respectively connected to the upper negative pressure cavity (2) and the lower negative pressure cavity (7). An upper flow channel (31) is machined in the middle of the upper mold (3) along the circumference of the cavity (4). A lower flow channel (61) is machined in the middle of the lower mold (6) along the circumference of the cavity (4).

2. The apparatus for manufacturing a fitness ball with an outer foreskin according to claim 1, characterized in that: The upper negative pressure chamber (2) and the lower negative pressure chamber (7) are respectively connected to an external vacuum generator through an upper connecting pipe (11) and a lower connecting pipe (81).

3. The apparatus for manufacturing a fitness ball with an outer foreskin according to claim 1, characterized in that: An upper sealing ring (12) is provided at the connection between the upper positioning plate (1) and the upper mold (3), and a lower sealing ring (82) is provided at the connection between the lower positioning plate (8) and the lower mold (6).

4. The apparatus for manufacturing a fitness ball with an outer foreskin according to claim 1, characterized in that: The upper mold (3) and the lower mold (6) are hinged on the right side by a pivot (5), and the upper mold (3) and the lower mold (6) are locked and positioned on the left side by a latch (9).

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