A kind of leather ball and its manufacturing process

Abstract

The invention discloses an envelope-pasted rubber ball. The envelope-pasted rubber ball comprises a vulcanized middle bladder, an envelope and ridge strips, wherein a plurality of grooves are formed in the outer surface of the vulcanized middle bladder, the grooves divide the outer surface of the vulcanized middle bladder into a plurality of piece regions according to ball class standards, the envelope is pasted to the piece regions of the vulcanized middle bladder through glue, the width of the envelop is slightly larger than the width of the piece regions of the vulcanized middle bladder, the part, exceeding the piece regions of the vulcanized middle bladder, of the envelope is attached to side ridges of the grooves through edge folding, and the ridge strips are embedded and pressed into the grooves through glue. The envelope-pasted rubber ball solves the problems that a traditional rubber ball becomes unglued and peels after being used for a long time, achieves seamless connection between the envelope and the ridge strips, solves the problem that clearances exist between the ridge strips and the envelope in the prior art, and guarantees a beautiful appearance.

Description

technical field [0001] The invention relates to the technical field of sporting goods, in particular to a leather ball and a manufacturing process thereof. Background technique [0002] For traditional skinned basketballs and skinned rugby (American football) the middle tires are either integrated with raised stems or pasted with lines as the stems of the middle tire before pasting the outer skin, and then the outer skin Paste on the middle tire, try to make the edge of the outer skin closely connected with the stem on the middle tire. However, when this production method is mass-produced, errors in the cutting of the outer skin often cause many places where the outer skin cannot be closely connected with the stem, resulting in a gap between the outer skin and the stem, or the outer skin covering the stem. As a result, the appearance is not perfect enough, and because the outer skin is only attached to the middle tire by the adhesive force of glue, it will cause undesirable...

AI Technical Summary

Problems solved by technology

After the leather piece is pasted to the sessile inner liner, the rubber stem is manually pasted into the gap of the sessile basketball with glue. This technical solution also suffers from the cutting error of the rubber stem in the production and cutting process and the manual removal of the rubber stem. Factors such as artificial errors caused by the close contact between the strip and the edge of the skin, resulting in gaps when the rubber stem strip and the skin are pasted, resulting in a loose structure, unsightly appearance, and unfavorable phenomena such as degumming and peeling of the outer skin after long-term use

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