Plastic Bottle Blow Molding Machine
A plastic bottle blow molding machine is a widely used piece of equipment in the manufacturing industry. It is designed to produce plastic bottles in a variety of shapes and sizes, for use in different industries such as food, beverage, and pharmaceuticals. The machine works by blowing compressed air into a parison, which is a preform mold made of plastic.
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Whether transparent or opaque, and across PET, recycled PET (up to 100% rPET), and refillable PET (refPET), Sidel EvoBLOW blowing range offers customised packaging shapes and formats with lightweighting possibilities. Our innovative, robust and patented solutions ensure the highest level of production efficiency with dedicated blowing processes to meet your needs.
Blow molding originated and evolved from the age-old art of glassblowing. A patent for extruding a celluloid polymer by blowing, or pushing, air into a mold was issued in the 1880s. Blow molding is an extrusion method where molten plastic is pushed through a two-dimensional die opening into a mold cavity, inflating it in the cavity with compressed air until the molten form gets its desired shape. The part is then cooled before removing from the mold. In blow molding, the finished products produce linear shapes and have two-dimensional forms which are continuous in length.
Injection molding is a process that evolved out of and is based on the molten die-casting method. First developed in the 1930s by melting plastic and injecting it into a predesigned mold, its advantages include a minimal loss of scrap and finishing requirements, and near 100% recycling. The injection-molding machine consists of two essentials: the actual injection unit and the clamping unit. Unlike extrusion, injection molding also forms three-dimensional shapes.
Closed loop reciprocating screw units with L/D ratios 24:1 & 30:1 with direct hydraulic drives, bimetallic barrels and ceramic heaters
Outputs from 50 – 1500 lb./hr (20 – 750 kg/hr) or combined output to 4500 lb./hr (1500 kg/hr)
Parison drop weights from 2-75 lb. (1-34 kg)
Individual layer thickness control
Profiled parison thickness control
Tooling from 2" - 24" (50 – 600 mm)
Tiebarless clamp (option)
Programmable machine control for all functions with recipe storage
Direct force hydraulics for all drive, ram, pushout and clamping functions
Equipment Structure
PREFORM FEEDING
HEATING OVEN
BLOWING STATION
BOTTLE OUT
BLOWING FILLING CAPPING
What's the Difference Between Blow Molding and Injection Molding?
The processes of molding between the two methods are different, too. Blow molding machines consist of three major parts: the extruder, accumulator die and product molds that differ in shapes and sizes. Blow molded containers require a parison, i.e., a plastic tube being heated and filled with air. The parison is inserted into the blow molding machine and the mold is clamped around the tube until the parison is formed in the shape of the part. During the injection molding process, melted material is injected into a mold, which is held under intense pressure. Once the material has solidified, it is ejected and the mold is filled again.
In the plastic manufacturing of parts, objects, and pieces, blow molding and injection molding are both common methods to produce the products used on a global market. While injection molding and blow molding may seem similar, there are major differences between the two methods that are ultimately determined by the manufacturer's needs.
Cooperation brand
WAHAHA
XIWANG
DAO DAO QUAN
CHIVALRY
JINMAILANG
NONGFU SPRING
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