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Manufacturing method of machine-pasted inflatable ball

A production method and technology of inflatable balls, applied to inflatable hollow balls, balls, sports accessories, etc., can solve problems such as holes in the glue layer, rising labor costs, and sunken balls, and achieve the effect of improving the yield rate

Active Publication Date: 2021-03-19
XIAMEN PULSA SPORTING GOODS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current inflatable balls are glued to the inner bladder manually. Considering that it is not easy to develop skilled workers, labor costs are rising year by year, and the skinning efficiency cannot be broken through.
Therefore, it is a trend in production to use machine skinning and hot pressing to set the shape. In the process of existing inflatable ball production, the ball skin cannot be completely covered with glue when the ball skin is bonded, and it is easy to leave air bubbles, resulting in a glue layer. There are holes in the interior, the ball skin is sunken and other problems

Method used

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  • Manufacturing method of machine-pasted inflatable ball
  • Manufacturing method of machine-pasted inflatable ball
  • Manufacturing method of machine-pasted inflatable ball

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, this embodiment provides a method for making a machine-attached inflatable ball, which includes the following steps:

[0031] (1) A layer of yarn 12 is wound on the surface of the inflatable inner container 11, and then covered with a rubber skin 13. After vulcanization, the ball tire 1 is obtained, and then a layer of hot melt adhesive layer 3 is applied on the surface of the ball tire 1, and dried at room temperature ;.

[0032] (2) Cut the ball skin 2, and thin the peripheral edge of the ball skin 2 to obtain the thinned portion 21, then brush a layer of hot melt adhesive layer 3 on the back side of the ball skin, dry at room temperature, the outer surface of the ball tire 1 and The total thickness of the hot melt adhesive layer 3 on the back of the ball skin 2 is 0.7 mm, and the width of the thinned portion 21 is 2 mm. The material of the ball skin 2 is PU, and the thickness of the main body of the ball skin 2 is 4mm.

[0033] The hot m...

Embodiment 2

[0038] Such as figure 2 As shown, the steps of this embodiment are consistent with the steps of Embodiment 1, the difference is that the outer surface of the inflatable inner bag 11 is wrapped with a layer of cloth 14 to form a ball tire 1, and the outer surface of the ball tire 1 and the ball skin 2 The total thickness of the hot melt adhesive layer 3 between the backs is 0.3 mm, and the edge of the ball cover 1 is not thinned. The material of the ball cover 1 is PVC.

[0039] The hot melt adhesive layer 3 includes the following components in parts by weight: 20 parts of polyurethane elastomer, 10 parts of tackifying resin, 4 parts of filler and 0.2 part of antioxidant.

[0040] When the skin-mounted mold is closed, keep it at 0.4Mpa, and the temperature line inside the skin-mounted mold is raised to 40°C and kept for 3 minutes. When hot-pressing the setting mold, first inflate the air pressure in the ball tire 1 to 0.4Mpa, then raise the temperature in the heat-setting mo...

Embodiment 3

[0042] Such as image 3 As shown, the steps of this embodiment are consistent with the steps of Embodiment 1, the difference is that a layer of yarn 12 is wound on the outer surface of the inflatable inner bag 11 to form a ball tire 1, and the outer surface of the ball tire 1 and the ball skin 2 The total thickness of the hot melt adhesive layer 3 between the backs is 0.3 mm, and the width of the thinned portion 21 is 6 mm. The material of the ball cover 2 is TPE.

[0043] The hot melt adhesive layer 3 includes the following components in parts by weight: 30 parts of polyurethane elastomer, 15 parts of tackifying resin, 10 parts of filler and 0.5 part of antioxidant. When the skin-mounted mold is closed, keep it at 1.0Mpa, and the temperature line inside the skin-mounted mold is raised to 60°C and kept for 1min. When hot-pressing and setting, first inflate the air pressure in the ball tire 1 to 1.0Mpa, then raise the temperature inside the heat-setting mold to 95°C, keep it ...

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Abstract

The invention relates to the field of ball manufacturing, and discloses a manufacturing method of a machine-pasted inflatable ball, which comprises the following steps: (1) preparing a ball tire, andbrushing a hot melt adhesive layer on the outer surface of the ball tire; and (2) smoothly placing the ball skins in a skin pasting mold of a skin pasting machine, wherein the adjacent ball skins abutagainst each other, and under the action of vacuum adsorption, the front faces of the ball skins are tightly attached to the inner wall of the mold; aligning an air nozzle of the ball tire brushed with the hot melt adhesive layer to an air nozzle in theskin pasting mold, putting the ball tire into the skin pasting mold, assembling the skin pasting mold, heating the skin pasting mold to melt the hot melt adhesive so as to bond the ball skin and the ball tire together, and then performing cooling to obtain a ball initial body; and placing the initial ball body into a heat setting mold, rising the temperature in the heat setting mold, so that hot melt adhesive is melted, the ball skin and the ball tire are completely bonded, and then, performing cooling to obtain the finished ball. The hot melt adhesive is used, and in the steps of skin attaching mold closing and hot pressing setting, the hot melt adhesive can completely fill gaps in the ball body, and the problem that the ball skin is sunken is avoided.

Description

technical field [0001] The invention relates to the field of making balls, in particular to a method for making machine-attached inflatable balls. Background technique [0002] Traditional inflatable balls are made of inner tank, inner tank, ball skin, inflation nozzle and so on. The inner bladder is the ball bladder, which is the heart of the ball. It is the innermost layer of the ball and is made of black rubber; the inner bladder is located outside the yarn layer, which is the adhesive layer of the skin and is made of black rubber; the ball skin is divided into synthetic leather. (microstrength fiber, PU, ​​PVC, etc.) and genuine leather; the spout is used to inflate the ball. However, most of the current inflatable balls are glued to the inner bladder manually. Considering that it is not easy to develop skilled workers, labor costs are rising year by year, and the efficiency of skin application cannot be broken through. Therefore, it is a trend in production to use mac...

Claims

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Application Information

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IPC IPC(8): A63B45/00A63B41/10A63B41/08A63B41/02
CPCA63B45/00A63B41/10A63B41/08A63B41/02
Inventor 赖永腾
Owner XIAMEN PULSA SPORTING GOODS CO LTD