+86-335-5962987

Method for quality inspection of glass wine bottles

May 19, 2023

Glass bottles are divided into round glass bottles, oval glass bottles, curved glass bottles and square glass bottles. Although the shape of glass wine bottles is different, they have the same detection method. Now make some analysis on the quality control of glass wine bottles.


Full inspection
After the products come out of the annealing line, the quality inspection personnel must conduct a full appearance inspection of all products, and the key points are:
(1) Bubbles in the bottle: Bubbles are the most likely problem in the production of glass wine bottles. Most quality inspectors cannot correctly grasp the size during the inspection, such as: bubbles above ∮1mm on the sealing surface of the bottle mouth are not allowed Yes; bottle body: no more than 6 bubbles below ∮1mm within one square centimeter; no more than 3 bubbles with 1mm<∮<6mm, and the distance between them is more than 20mm; broken bubbles on the surface are not allowed, etc. Difficult to grasp, only with different shapes of film comparison. the
(2) Crooked neck: mainly caused by misalignment between the die and the mold during the operation, or one side of the die is not completely placed on the mold. It can be solved by requiring the operator to correct the operation. Affects the overall appearance of the bottle, if not the fit with the cap. the
(3) Inclined bottom: The bottom is unevenly fed, and half of the side is thick, or even more than half, which affects product quality and lowers the grade of the bottom product. the
(4) Thickness of the seam line: The seam line exceeds 0.5mm on the surface, and even the feeling of scratching is not allowed, especially on the sealing surface of the bottle mouth. The main reason is that the mold is not in place or caused by wear, which needs to be repaired, polished, polished and combined. the
(5) Material color: Generally speaking, the material color of glass wine bottles will not change greatly, unless the ingredients of the raw materials used change, it will generally not change. If there is a phenomenon of turning green or blue, the formula can be adjusted appropriately to remove the color . the
(6) The appearance of the inner and outer diameter of the opening and the notch in the opening: the inner and outer diameter of the opening and the door are most likely to have problems. Outer diameter: Because the die is easy to be stained with oil during use, the anti-slip teeth become smaller, and the lid slips left and right, which cannot be tightly sealed; there is a notch in the bottle mouth, and the inner plug of the lid cannot be tightly inserted, which will lead to wine leakage. The main reason is that the material is too soft; or the core pulling speed is too fast after the material enters the initial mold, and the material is not fully formed; it may also be that the core is too short, which can be solved by lengthening the core appropriately.

 

Send Inquiry