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Report of Chinese factory tour |
| ■Chinese racket mold factory report | |
| ■ | SHUTTLE HOUSE does overseas training once a year for stuff , in this time we visited Chinese racket factory and sports shop in Hong Kong |
| ■ | We told you the report of Chinese factory . |
| ★Racket mold factory | ||||||||
| place：china | ||||||||
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| ＜planning room 1＞ A planning of racket mold made by computer . |
＜planning room 2＞ It was made 3D. A young engineer very easily operates it.. |
＜planning room 3＞ Adjusted design of racket in itself , applauding of mold is done. |
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| ＜production of mold 1＞ It is NC lathe for making mold of racket. |
＜production of mold 2＞ it sharpen it according to the program of a computer automatically |
＜production of mold 3＞ Finish stage of mold. A curve of a joint part is finished beautifully by special machine . |
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| ＜production of grommets1＞ It is lathe for making mold of grommets |
＜production of grommets2＞ It is mold making machine |
＜production of grommets3＞ It can make 320 pieces once . |
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| ＜production of cap1＞ It is a machine for assembling cap of grip end . |
＜production of cap2＞ End cap is made maker logo mark to mix 2 parts |
＜production of cap3＞ separate a molded bayonet point cap , and sharpen it politely . |
| ★Racket factory | |
| place：china | |
| products：Racket for badminton , tennis , squash | |
| Quantity of production：about four millions / a year |
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| ＜production of carbon sheet＞ It coil carbon fiber around a roll core .After finish coiling , slit open by cutter ,and make one sheet. It is used both of carbon sheet produced by their factory and by Europe by a sort of racket. |
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| ＜production of shaft 1＞ Cut a carbon sheet . It is adjusted angle by angle of carbon fiber . It fix edge of sheet by tape . |
＜production of shaft 2＞ It is a machine for making mold of shaft .While pressure is putting on , coiled carbon sheet ,and completed shaft . |
＜production of shaft 3＞ Coil a transparency tape on shaft |
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| ＜production of shaft 4＞ It dry in high temperature dry room. |
＜production of shaft 5＞ Polish a surface of dry shaft |
＜production of shaft 6＞ load to shaft and sort out the hardness of a shaft from condition. |
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| ＜production of frame1＞ Cut a carbon sheet put a mold together. It is a little difference of carbon fiber quantity by a sort of racket . |
＜production of frame2＞ mold temporary with form of frame |
＜production of frame3＞ install a shaft to a frame Strength is secured. in joint parts |
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| ＜fire 1＞ Insert frame and shaft between two mold , |
＜fire 2＞ Fire in oven. In this factory there are equipment that can fire about 30-50 rackets once . |
＜fire 3＞ Take out the rackets finished fire . It is a very heavy labor in the hand work . |
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| ＜hole processing＞ make a hole to thread a grommet in frame .The racket is fixed metallic guide , the position of the hole never shifts. |
＜attach grip 1＞ It applies an adhesive to the shaft, attach grip and cap . |
＜attach grip 2＞ adjust a length and angle by the time the adhesive dries . |
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| ＜ burnish surface 1＞ burnish a racket by sandpaper |
＜burnish surface 2＞ check a surface of racket , remove defective goods . A part of burnish shortage is done again |
＜burnish surface 3＞ A part of burnish shortage burnish again . |
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| ＜test 1＞ Weight and balance of racket is measured , it checks whether to be in the standard. (The picture is tennis racket but same as badminton racket) |
＜test 2＞ Torque of racket is measured , it checks whether to be in the standard . The left of the picture is normal and the right of the picture is twisted . |
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| ＜painting １＞ Painting is den by special workman with spray gun . |
＜painting 2＞ Also gradation painting is done by special workman It is a sample of painting right side of picture . |
＜painting 3＞ Finished painting racket is fixed on hanger. |
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| ＜painting 4＞ Painting is dried in a dry room. |
＜painting 5＞ It puts a seal of logo or character . |
＜painting 6＞ final check of painting . It finishes it up by the clearing painting.after that . |
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| ＜drive Grommet 1＞ It is automatically driven grommet to a hole of racket . |
＜drive Grommet 2＞ cut a grommet suitable length . SHUTTLE HOUSE staff tried the process but it need experience to make same length . |
＜drive end cap＞ check the length and weight balance of racket and install end cap . |
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| ＜Wrapping of grip tape 1＞ stick double-faced tape ton grip |
＜Wrapping of grip tape 2＞ After fixed grip end , wrap grip tape with rotating racket . |
＜packing＞ After final test , it will finish . |
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| ＜string＞ | |||
| In this factory , it string for cheap racket . We will introduce of process of string .. | |||
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| ＜string＞ It string with about 15 workmen queue up. Warp and woof is left about 30cm to be pulled by string machine . |
＜string＞ About ten workmen string by handle type string machine . Therefore it had threaded warp and woof already ,It takes only five minutes , |
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| ＜test room＞ | |||
| There is a test room in factory , it is tested here new products . We will introduce typical test . |
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| ＜Continuous batting test＞ It try to test thousands of times repeatedly , whether there is any trouble to racket . |
＜Test to load＞ It applies load to the frame side vertically and horizontally. tested durability of racket , |
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| It was surprised of you because there were quite a lot of processes up
to making one racket. In this factory , I hear it was a first time to accept factory tour from sports shop . A part of the trade secret that was not able to be introduced on the homepage was taught to Frank, and it became very significant training for our staff. |
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