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Oven for heating moving thermoplastic material container blanks

A thermoplastic material and furnace technology, applied in the field of container manufacturing, can solve the problems of large furnace length and difficulty in adoption, and achieve the effects of reducing power, reducing power consumption, and increasing exposure time

Inactive Publication Date: 2009-08-12
SIDEL PARTICIPATIONS SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, although this solution is generally advantageous for the reasons indicated above, it has a disadvantage that it is difficult to implement in practice due to the excessive length of the furnace

Method used

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  • Oven for heating moving thermoplastic material container blanks
  • Oven for heating moving thermoplastic material container blanks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] first reference figure 1 , the furnace 1 is used to heat running blanks, especially preforms or semi-finished containers, which are made of thermoplastic materials such as PET or PEN. It is possible for such an oven to be placed upstream of a blow molding or stretch blow molding device for producing the containers.

[0023] The furnace 1 comprises conveying means 2 adapted to support and successively move billets (not shown) while rotating each billet about its own axis. These conveying devices are configured in a known manner and consist of an articulated sequence or conveyor chain of support devices ("spinners") adapted to support the blanks at their necks, while these support devices rotate in such a way (for example Fastened there by meshing with gears, mounted with lateral conveyor chains or carriages): each blank rotates while moving, thus exposing the entire periphery of its body to the heating means 3 provided on the sides of the conveyor.

[0024] According t...

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PUM

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Abstract

The invention relates to a furnace for heating moving thermoplastic blanks (preforms, container semi-finished products), comprising a conveying device (2) suitable for supporting and successively moving the blanks and a heating device (3), At the same time, each blank is rotated around its own axis, and the heating device (3) is positioned on the side of the conveying device (2) in order to heat the body of the blank being moved, and the conveying device (2) Arranged to have at least two conveying branches (4, 5) extending substantially parallel to each other and in opposite conveying directions, said two conveying branches moving said blanks successively, said heating device (3) being positioned on said Between two parallel conveying branches (4, 5) extending adjacent to each other, the characteristic is that the heating device (3) includes a continuous infrared heating lamp. A single combination of devices, the infrared heating lamp extending between and substantially parallel to the two conveying branches (4, 5), so that the infrared heating lamp has two sides The blanks moving in opposite directions along the two conveyor branches are heated simultaneously.

Description

technical field [0001] The present invention generally relates to the field of container manufacture, such as bottles, flasks, etc., made of thermoplastic material, such as PET or PEN, by blow molding or stretch blow molding to make primary containers or blanks (preform or semi-finished container), the invention relates in particular to the stage of heating said blank prior to the blow molding or stretch blow molding step to soften the plastic and make it deformable. [0002] More precisely, the present invention relates to improvements in furnaces for heating blanks in operation, in particular preforms or semi-finished containers made of thermoplastic material, such furnaces comprising conveying means and heating means; conveying means For supporting and successively moving each blank as it rotates about its own axis; heating means are placed on the sides of the conveying means, thereby heating the bodies of the moving blanks. Background technique [0003] In order for the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C49/68B29C35/08B29C49/42
CPCB29C2035/0822B29C49/4205B29C49/68B29C49/6835
Inventor A·埃夫拉尔F·勒孔特N·塔克埃德米特
Owner SIDEL PARTICIPATIONS SAS