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Machine for manufacturing plastic items by blow moulding

A technology of plastic products and machines, applied in applications, household appliances, household components, etc., can solve the problems of high cost, limited production volume and reliability, and no plastic sheets are allowed, so as to ensure uniformity and improve reliability , the effect of reducing energy consumption

Active Publication Date: 2020-04-10
斯蒂利亚诺斯埃莱夫特里乌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It became apparent that while existing technology was capable of producing defect-free plastic bottles, the existing technology had limitations in terms of throughput and reliability
Furthermore, this technology does not allow easy management of the thickness of the plastic sheet that can produce packages with a volume greater than 500 ml or similar
The technical characteristics of such a device make it costly

Method used

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  • Machine for manufacturing plastic items by blow moulding
  • Machine for manufacturing plastic items by blow moulding
  • Machine for manufacturing plastic items by blow moulding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In a manner known per se, a coil 1 of plastic sheet material represents the supply of raw material, said coil being motorized to produce a rotation about its main axis. figure 2 Arrow 2 in indicates drive in rotation. In a likewise known manner, immediately downstream of the web 1 there is provided a device 3 for longitudinal cutting, ie longitudinal cutting along the length of the plastic sheet. device 3 in figure 2 Visible and depicted as two barrels in . Any known device can be selected here. The strip 100 of plastics material thus formed is then held and moved towards at least one former 4 in order to form a tube from said strip. The width of each strip 100 corresponds to the circumference of the tube to be produced.

[0033] As a variant of embodiment, the web 1 of plastic material comprises a single strip whose width corresponds to the circumference of the tube to be produced. In another variant of embodiment, the web 1 of plastic material comprises two or ...

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PUM

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Abstract

The invention concerns a machine for manufacturing plastic items comprising, in series, along the manufacturing line: a rotatable roll (1) of plastic material in the form of at least one strip; a shaper (4) for forming tubes from said strips and means (5) for longitudinally welding said tubes; means (6) for cutting the tubes transversely, arranged so as to form tube sections (10); means for transferring and depositing said sections in holding and moving means; an oven (8) in which said tube sections move; a first turret (9) supporting moulds; means for processing the tube sections in the firstturret; means for blowing a pressurised fluid into the moulds; a second turret (14) for discharging the bottles from said moulds.

Description

technical field [0001] The present invention relates to the field of packaging and more particularly to the manufacture of bottles or other articles by blow molding a semi-rigid plastic sheet, ie a semi-rigid plastic sheet which tends to return to its original shape after deformation. Polypropylene or high density polyethylene or equivalent types of material are of particular relevance to the present invention. Background technique [0002] In document FR 2851227 a device and a method for blow molding containers formed from strips of thermoformable plastic are described. The method proposes to shape the strip into a tube, which is heated and then inserted into a mould. Air injected into the tube enables the tube to deform by pressing the tube wall against the inner surface of the mold cavity. According to this principle, a machine is described in this earlier document, the machine disclosed in this document comprises: a frame, which is continuously installed in the machine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/02B29C65/08B29C65/00B29C53/50B29C53/52B29B11/02B29B11/04B29C49/42B29C49/64B29C49/78B29K23/00B29L31/00
CPCB29L2031/7158B29C65/08B29B11/00B29B11/02B29B11/04B29C66/1122B29C66/4322B29K2023/065B29K2023/12B29C49/02B29C49/4252B29C49/64B29C49/78B29C53/50B29C53/52B29C66/49B29C66/71B29C66/73921B29C66/836B29C66/8432B29C66/949B29C2793/009B29C69/001B29C49/68
Inventor 斯蒂利亚诺斯·埃莱夫特里乌
Owner 斯蒂利亚诺斯埃莱夫特里乌