How to Make Wine Bottle Caps with Pre Painted Aluminum

Take the wine bottle cap as an example. It starts from a whole piece of pre painted aluminum sheet. After drying, small circles continue to be printed on the painted aluminum plate and the robot picks them up for subsequent processing.

Punch out the small bottle cap

Firstly, the bottle cap manufacturers make batches of small discs. Then it is sent to stamping, and the round blank is made into the shape of a small bottle cap. It's still relatively flat at the moment.

Stretch forming

Squeeze the small bottle cap multiple times to turn it into a long bottle cap that fits the neck size of the red wine bottle. The size of the punch is gradually reduced each time, and it is rushed in again and again, achieving the effect of multiple stretching and thinning, and the small round cup gradually becomes longer, thinner, and narrower. The final bottom is a semicircle shape, and the punch presses it to the bottom, and a concave part is punched out of the small round cup.

Printed sides

Next, decorate the sides of the bottle cap. Rotate the ink roller sideways to print patterns around the aluminum bottle cap.

Bottle cap labeling

Some even put a sticker on the top of the bottle cap. The bottle cap is fixed on the base. When it is turned to the bottom of the sticker strip, the sticker has been stripped of its protective layer and fits perfectly on the bottle cap at this time.

Make cuts

But there is obviously still a gap between the bottle caps at this time and the finished bottle caps. You also have to make cuts and grooves on it. The vertical cuts are presumably used to increase friction when unscrewing. With the perfect cooperation between the cutting machine and the mold, you can see that the bottle cap instantly becomes much more refined. Check with light to see if the cuts and grooves are up to standard.

Finally, the bottle cap is tightly sealed to the bottle mouth through the thread reinforcement device. Since aluminum foil for wine bottle caps has relatively good ductility, it can tightly adhere to the threads of the bottle mouth after being screwed on, and it also forms a thread. When we unscrew the upper part of the anti-theft ring, the aluminum bottle cap will not be as perfect as before.

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