How extrusion blow moulding produces empty bottles: the parison, mould halves, squeeze-and-blow forming and, cooling that fixes the shape.
Plastic processing technology “blow molding” one of the widely used in PE, PP, PS, PETG, EVA and other materials production and processing, can do more complex shapes of hollow plastic products
First, the plastic pellets (raw materials) are heated with a blowing machine, and a plastic like a hollow tube is extruded from the die head (soft and very hot), intercept a section into the mold, blow molding with high-pressure air, need to remove the excess edges (also known as water mouth material). This This uninterrupted process is called extrusion.
Extrusion blowing machine
1: Hopper 2: Mold 3: The bottle slides down into the frame from here
The arrow is the location of the water outlet material Extrusion blowing process, there is excess glue is squeezed into the mouth of the material position, you need to remove this part
Production steps of extrusion blowing
1、Procurement of raw materials 2、In addition to the original color, other colors need to be mixed (color mixing) 3、Mixing material at the same time, but also in the installation of the mold (Put the corresponding bottle molds on the machine) 4, raw material particles into the hopper 5, heating raw material particles, melting out into a “hollow tube” 6, the machine cut a section of “hollow tube” and put it into the mold 7、The mold is closed, blowing air, so that the plastic fits the inner wall of the mold, forming 8, in the mold for a short time to cool, the mold open, the bottle fell 9、Workers cut off/break off the excess corners, generally the mouth and bottom of the bottle, check the quality at the same time of processing, the unqualified ones will be Put it into the special frame 10、Boxing 11, a box full of tape sealing boxes 12、Paste box mark, into the warehouse, after the order is done waiting for delivery 14, production of the next bottle: change the mold, washing machine (washing machine is heated with plastic melting through the machine, not water washing)
Squeeze and blow empty bottles
The above is the production process of extrusion blowing empty bottles, if there are still questions about the production of empty bottles I will update other aspects of the information, BOTUO packaging is a professional production of plastic empty bottles factory, plastic empty bottles demand can contact us Oh, to provide empty bottles custom service
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