Hot-melt welded Pick ball structure

Abstract

The utility model relates to the technical field of Pick balls, in particular to a hot melting welding Pick ball structure which comprises a ball body, the ball body is formed by an upper hemisphere and a lower hemisphere in a hot melting welding mode, the upper hemisphere and the lower hemisphere are both of a hollow-out hemisphere structure, a hot melting protrusion protruding downwards is arranged on the welding plane of the upper hemisphere, and a hot melting groove is formed in the welding plane of the lower hemisphere. A hot melting protrusion is formed in the welding plane of the upper hemisphere and is of an annular structure along the edge of the upper hemisphere, a hot melting welding groove sunken upwards is formed in the welding plane of the lower hemisphere and is of an annular groove structure along the edge of the lower hemisphere, and when the upper hemisphere and the lower hemisphere are formed in a hot melting welding mode, the hot melting protrusion can be embedded into the hot melting welding groove for fusion welding. The limiting structure can be formed between the hot melting protrusion and the hot melting welding groove, it can be guaranteed that when the two hemispheres are welded, the centers of the two hemispheres are kept at the same position, and the yield of hot melting forming of the Pick balls is effectively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of pickle balls, in particular to a hot-melt welded pickle ball structure. Background Art

[0002] Pickleball is a sport that uses a racket to hit the ball. It originated from Benbridge Island in Seattle, USA. It is said to be a hybrid sport of tennis, badminton and table tennis. The court for pickleball is exactly the same as that for badminton. The ball used is the size of a tennis ball, a thin-shell hollow ball made of hard plastic, with 26 holes about 1 cm in diameter.

[0003] The commonly used manufacturing process for pickle balls is injection molding, and then ultrasonic welding is used to weld the two hemispheres of the injection molded balls into a spherical shape. The welding surface of the existing pickle balls is a flat plane structure. When welding into a spherical shape, the two hemispheres are easily displaced, causing the centers of the two hemispheres to shift. At the same time, after welding into a spherical shape, there will be a large amount of overflow glue on the surface of the pickle ball, and the welding point of the pickle ball needs to be trimmed. Therefore, in view of these current situations, it is urgent to develop a hot-melt welded pickle ball structure to meet the needs of actual use. Summary of the invention

[0004] The utility model aims to provide a hot-melt welded pickle ball structure to solve the problem that the two hemispheres of the existing pickle ball are easily displaced when being welded into a spherical shape, resulting in the deviation of the centers of the two hemispheres, and at the same time, after being welded into a spherical shape, a large amount of glue overflow will exist on the surface of the pickle ball.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A hot-melt welded pickle ball structure includes a sphere body, which is formed by hot-melt welding of an upper hemisphere and a lower hemisphere. Both the upper hemisphere and the lower hemisphere are hemispherical structures with hollow interiors. A downwardly protruding hot-melt protrusion is provided on the welding plane of the upper hemisphere, and the hot-melt protrusion forms an annular structure along the edge of the upper hemisphere. An upwardly concave hot-melt welding groove is provided on the welding plane of the lower hemisphere, and the hot-melt welding groove forms an annular groove structure along the edge of the lower hemisphere. When the upper hemisphere and the lower hemisphere are formed by hot-melt welding, the hot-melt protrusion can be embedded in the hot-melt welding groove for fusion welding.

[0007] In the above description, as a further solution, the cross-section of the hot melt protrusion is a terrace-like structure, and the cross-section of the hot melt welding groove is a terrace-like structure matching the hot melt protrusion.

[0008] In the above description, as a further solution, the height of the hot melt protrusion is smaller than the depth of the hot melt welding groove. When the hot melt protrusion is embedded in the hot melt welding groove for welding, a closed gap is left between the bottom end surface of the hot melt protrusion and the bottom of the hot melt welding groove.

[0009] In the above description, as a further solution, the horizontal width of the hot melt protrusion is greater than the horizontal width of the hot melt welding groove, and the side wall where the hot melt protrusion and the hot melt welding groove collide is the melting part.

[0010] The beneficial effects produced by the utility model are as follows:

[0011] The present application discloses a hot-melt welded pickle ball structure. When the upper hemisphere and the lower hemisphere are formed by hot-melt welding, the hot-melt protrusion can be embedded in the hot-melt welding groove for welding. A limiting structure can be formed between the hot-melt protrusion and the hot-melt welding groove to ensure that the centers of the two hemispheres remain in the same position when the two hemispheres are welded, thereby effectively improving the yield rate of the hot-melt forming of the pickle ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a hot-melt welded pickle ball structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structural decomposition of a hot-melt welded pickle ball structure of the utility model;

[0014] Figure 3 It is a schematic cross-sectional structure diagram of a hot-melt welded pickle ball structure in a disassembled state according to the utility model;

[0015] Figure 4 for Figure 3 A is a schematic diagram of the partially enlarged structure of the middle part;

[0016] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure in the welding state;

[0017] In the figure: 100-sphere body, 1-upper hemisphere, 101-hot melt protrusion, 2-lower hemisphere, 201-hot melt welding groove, 3-closed gap, 4-melting flow part. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0019] See also Figure 1-5A specifically implemented hot-melt welded pickle ball structure includes a sphere body 1, which is formed by hot-melt welding of an upper hemisphere 1 and a lower hemisphere 2. Both the upper hemisphere 1 and the lower hemisphere 2 are hemispherical structures with hollow interiors. A downwardly protruding hot-melt protrusion 101 is provided at the welding plane of the upper hemisphere 1, and the hot-melt protrusion 101 is an annular structure along the edge of the upper hemisphere 1. An upwardly concave hot-melt welding groove 201 is provided at the welding plane of the lower hemisphere 2, and the hot-melt welding groove 201 is an annular groove structure along the edge of the lower hemisphere 2. When the upper hemisphere 1 and the lower hemisphere 2 are formed by hot-melt welding, the hot-melt protrusion 101 can be embedded in the hot-melt welding groove 201 for fusion welding.

[0020] When the upper hemisphere 1 and the lower hemisphere 2 are formed by hot-melt welding, the hot-melt protrusion 101 can be embedded in the hot-melt welding groove 201 for welding, and a limiting structure can be formed between the hot-melt protrusion 101 and the hot-melt welding groove 201 to ensure that the centers of the two hemispheres remain in the same position when the two hemispheres are welded.

[0021] In a further embodiment, Figure 4-5 As shown, the cross section of the hot melt protrusion 101 is a terrace-like structure, and the cross section of the hot melt welding groove 201 is a terrace-like structure matching the hot melt protrusion 101. The height of the hot melt protrusion 101 is less than the depth of the hot melt welding groove 201. When the hot melt protrusion 101 can be embedded in the hot melt welding groove 201 for welding, a closed gap 3 is left between the bottom end surface of the hot melt protrusion 101 and the bottom of the hot melt welding groove 201. The horizontal width of the hot melt protrusion 101 is greater than the horizontal width of the hot melt welding groove 201. The side wall of the hot melt protrusion 101 that conflicts with the hot melt welding groove 201 is the melting part 4.

[0022] A welding process of a hot-melt welded pickle ball structure: the surfaces of the hot-melt protrusions 101 of the upper hemisphere 1 and the lower hemisphere 2 and the inner walls of the hot-melt welding groove 201 are respectively hot-melted by an external hot-melt plate, and the welding planes of the upper hemisphere 1 and the lower hemisphere 2 are butted, so that the hot-melt protrusions 101 can be embedded in the hot-melt welding groove 201, and a limiting structure is formed between the hot-melt protrusions 101 and the hot-melt welding groove 201, which can ensure that the centers of the two hemispheres are kept in the same position when the two hemispheres are welded, and at the same time, the melt flow part 4 where the hot-melt protrusion 101 conflicts with the hot-melt welding groove 201 can be melted into a fluid state, and the melt flow part 4 flows downward along the side wall of the hot-melt welding groove 201 into the closed gap 3, and is kept for a period of time to cool to form a new welding layer, which can effectively reduce the glue of the melt flow part from overflowing to the surface of the pickle ball, and reduce the situation where there is a large amount of glue overflow on the surface of the pickle ball.

[0023] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A hot-melt welded pickle ball structure, comprising a spherical body, wherein the spherical body is formed by hot-melt welding an upper hemisphere and a lower hemisphere, wherein both the upper hemisphere and the lower hemisphere are hemispherical structures hollowed out inside, and characterized in that: A downwardly protruding hot-melt protrusion is provided on the welding plane of the upper hemisphere, and the hot-melt protrusion is an annular structure along the edge of the upper hemisphere. An upwardly concave hot-melt welding groove is provided on the welding plane of the lower hemisphere, and the hot-melt welding groove is an annular groove structure along the edge of the lower hemisphere. When the upper hemisphere and the lower hemisphere are hot-melt welded into shape, the hot-melt protrusion can be embedded in the hot-melt welding groove for fusion welding.

2. A hot-melt welded pickle ball structure according to claim 1, characterized in that: The cross section of the hot melt protrusion is a terrace-like structure, and the cross section of the hot melt welding groove is a terrace-like structure matching the hot melt protrusion.

3. A hot-melt welded pickle ball structure according to claim 2, characterized in that: The height of the hot melt protrusion is less than the depth of the hot melt welding groove. When the hot melt protrusion is embedded in the hot melt welding groove for welding, a closed gap is left between the bottom end surface of the hot melt protrusion and the bottom of the hot melt welding groove.

4. The hot-melt welded pickle ball structure according to claim 3, characterized in that: The horizontal width of the hot melt protrusion is greater than the horizontal width of the hot melt welding groove, and the side wall where the hot melt protrusion contacts the hot melt welding groove is the melting flow portion.

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