The auxiliary machines required for the production of plastic injection blown hollow medical plastic bottles include: conveyor belts, air compression purification devices, raw material dryers and automatic feeders, and mold temperature machines.
The conveyor belt is generally composed of a stainless steel flat chain transmission device, a flame treatment device, a counting device, and the like. Because the stainless steel flat chain is not easy to rust and is conducive to cleaning, it avoids the pollution of the medicinal bottle and the sanitary requirements of Futai medical packaging. Compared with the plastic flat chain, the stainless steel flat chain has a small deformation after flame treatment. The flame treatment device removes oil from the bottle and facilitates labeling. The size and height of the flame can be adjusted to meet the needs of different medicinal bottles. The counting device can accurately record the number of the medicine bottles by the induction of the photoelectric switch, and when the number of the medicine bottles reaches the set value, an alarm signal is given. Compared with manual operation, the conveyor belt greatly reduces the possibility of contamination of the medicine bottle and meets the requirements for medical packaging hygiene.
The air compression purification device includes an oil-free compressor, a gas storage tank, an air dryer, a filter, and the like. Generally, the gas source entering the gas path system is compressed air that has been dedusted, dehydrated, and free of oil mist. The dust and moisture content is below 100 Mg/m3, the filtration precision is 5um, and the blowing pressure is 1.2Mpa. The gas supply is ≥0.5m3/ MIN.
Usually, if the moisture content in the raw material is seriously exceeded, it will cause irregular streaks and bubbles on the surface of the medicinal bottle. At this time, it is necessary to dry the raw material with a dryer. In general, it is not necessary to use a raw material dryer as long as the raw materials are purchased and stored scientifically and in a standardized manner. In order to improve the automation level of production equipment and reduce the labor intensity of workers, it is recommended to use automatic feeders.
The role of the mold temperature machine is to control and stabilize the temperature of the molten plastic in the injection mold. According to the characteristics of different raw materials, different process temperatures can be set to obtain stable parison temperature and preform size. If the temperature is too high, the parison will bond the mandrel. If the temperature is too low, it will affect the inflation molding of the parison. .
Spinach is a biennial vegetable in the Chenopodiaceae family. The main root is thick and long, red and sweet. The leaves are triangular-ovate, dark green, and the basal leaves and stem small leaves are longer and fleshier than the stalk.
Originally from Persia, it was introduced to my country in the Tang Dynasty and is now cultivated everywhere. It is a green leafy vegetable that is supplied to the market all year round.
Spinach can be divided into two types: pointed leaves and round leaves. Pointy leaf type, the leaves are arrow-shaped, the petioles are long and the mesophyll is thin, the roots are thick and the sugar content is high, and the quality is good. The autumn and winter blanket spinach belongs to this type. Round leaf type, the leaves are round, the oval shape is oval, the leaves are large and fleshy, the petioles are short and broad, and the oxalic acid content is high. Spring and summer spinach mostly belongs to this type.
The quality requirements of spinach: dark green color, red roots, no water, not old stems and leaves, no bolting flowers, no yellow rotten leaves is better.
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