Blow-moulding device for composite plastic bottle and method for manufacturing composite plastic bottle

Abstract

The invention discloses a composite plastic bottle blowing molding device, which comprises a material shunting mechanism and at least two die heads. The material shunting mechanism is installed on the upper ends of both die heads; each die head comprises a die casing, a die core and a die ring which is sheathed at the outer side of the die core and is fixed at the lower end of the die casing, and an air inlet is arranged on the die core; the material shunting mechanism comprises at least two shunting blocks which are piled up in sequence, a shunting pipeline is arranged inside in each shunting block, the shunting pipelines comprise inlets which can be connected with a material supplying device and shunting outlets with the amount being identical with that of the die heads, and each shunting outlet is connected with the shunting flow channel inlet of a die head. A composite plastic bottle manufacturing method comprises the following steps: at least two materials are evenly and respectively fed to each die head; the materials are respectively conveyed downward to the outlet opening of the die head through the shunting flow channel to be converged, are extruded from the lower end of the die head; and therefore the high-barrier composite plastic bottle is produced. The composite plastic bottle blowing molding device has the advantages of high production efficiency, simple structure, lower cost, and good operation effect.

Description

technical field [0001] The invention relates to a composite plastic bottle blow molding device for producing high-barrier composite plastic bottles and a manufacturing method for the composite plastic bottle. Background technique [0002] The current patented blow molding devices are all used to produce composite films, and these blow molding devices are not suitable for the production of composite plastic bottles. [0003] At present, the blow molding device used to produce high-barrier composite plastic bottles produces three-layer composite plastic bottles. Because the thickness of the barrier layer is not uniform enough, the quality of high-barrier composite plastic bottles is not good enough, and there is only one blow molding device. The die head has low production efficiency and cannot meet the needs of mass production. Contents of the invention [0004] The purpose of the present invention is to improve the prior art and provide a composite plastic bottle blow mol...

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Problems solved by technology

[0003] At present, the blow molding device used to produce high-barrier composite plastic bottles produces three-layer composite plastic bottles. Because the thickness of the barrier layer is not uniform enough, the quality of high-barrier composite plastic bottles is not good enough, and there is only one blow molding device. Dies, low production efficiency, unable to meet the needs of mass production

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