The blister packaging machine is a machine that forms a blister with a transparent plastic film or sheet, and seals the product between the blister and the bottom plate by means of heat sealing, bonding, etc.
The composition of the blister packaging machine: The blister packaging equipment for medicines is basically similar to the blister packaging equipment for other products, and mainly consists of the following parts:
① Heating part
Heat the plastic sheet to harden it for molding. According to the different contact methods between the heater and the sheet, there are two heating methods: direct heating and indirect heating. Direct heating is to bring the sheet into contact with the heater. The heating speed is fast, but uneven, and is suitable for heating thinner materials; indirect heating is the application of radiant heat, which is close to the heating of the sheet, and the heating is thorough and even, but the speed is slower, and it is suitable for thicker materials. Mianli material. According to the heat source of the heater, the heating method includes hot air heating and thermal radiation heating. Hot air heating uses hot air to radiate directly to the surface of the heated plastic sheet. This type of method has low heating efficiency and is not average; thermal radiation heating uses light radiation and heat generated by far-infrared heaters to heat the plastic sheet. The heating efficiency is high and average.
②Forming part
There are two methods for blister molding, namely compression molding and blister molding. Compression molding is to blow the hardened sheet against the mold with compressed air to make it close to the four walls of the mold. The mold adopts a flat shape, usually intermittent transmission, but also continuous transmission. Its molding quality is good, and it is practical for both deep and shallow blister.
Blister molding is to use a vacuum method to absorb the hardened sheet on the four walls of the mold to form the cavity of the blister. Molds mostly adopt a roller shape that continues to be conveyed. Due to the limited suction generated by the vacuum, the angle of the blister leaving the roller is limited after the molding is added, so it is only practical for shallower blister and thinner materials.
③Filling equipment
For quantitative filling of medicines to the sides of the formed blister, quantitative active filling equipment is often used.
④Hot package preparation
The aluminum foil substrate material used for the cover is sealed on the blister. There are two types: flat type and roller type. The flat plate is used for intermittent conveying, and the roller type is used for continuous conveying.
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