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Method and device for tempering preforms

一种预制坯件、设备的技术，应用在用于对预制坯件进行调温和设备领域，能够解决降低加热器件效率、热量损失加热功率大等问题

Active Publication Date: 2018-04-13
KHS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Heat is naturally removed from the heating channel via the cooling device, thereby reducing the efficiency of the heating element, wherein the relative heat loss becomes particularly large precisely when the heating power is reduced

Method used

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  • Method and device for tempering preforms
  • Method and device for tempering preforms
  • Method and device for tempering preforms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] exist figure 1 in and in figure 2 The basic structure of a device for forming preforms 1 into containers 2 is shown in .

[0034] The plant for shaping the containers 2 essentially consists of a blow molding station 3 which is provided with blow molds 4 into which the preforms 1 can be inserted. The preform 1 can, without limiting the versatility, be an injection molded part made of polyethylene terephthalate (PET). However, other suitable thermoplastic materials are also known, from which the preforms can be formed. In order to allow the preform 1 to be inserted into the blow mold 4 and to enable the finished container 2 to be removed, the blow mold 4 consists of mold halves 5, 6 and a bottom part 7 which can be lifted by means of a lifting device. 8 positioning. The preforms 1 can be held in the region of the blow molding station 3 by a transport mandrel 9 which, together with the preforms 1 , passes through several processing stations within the installation. H...

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PUM

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Abstract

The invention relates to a method for controlling the temperature of preforms (1) in a blow molding machine, wherein at least one heating box (30) equipped with reflective walls (51) is arranged along the conveying path of the preforms (1) to form A heating channel (50) through which the preforms are guided, a heating box (30) having heating means (39) for heating the preforms (1) in the heating channel (50) and at least one reflective wall for cooling ( 51) have the cooling device (52) of air blower, by means of the air quantity that heat channel (50) outside flows along reflection wall (51) to wall cooling, heating channel (50) heating element (39) heating power can be adjusted, and control device ( 62) It is used for controlling the cooling power of the cooling device (52) according to the heating power of the heating device (39) of the heating channel (50). The invention relates to an arrangement for tempering preforms for carrying out the method according to the invention and a blow molding machine having at least one arrangement according to the invention.

Description

technical field [0001] The invention relates to a method and a device for tempering preforms in a blow molding machine by means of a heating tunnel with reflective walls, the heating tunnel being formed by a heating box. For the purpose of adjusting the temperature to the blow molding temperature, the preforms are guided through the heating tunnel. Furthermore, the heating box has a cooling device with at least one blower. The cooling device cools the reflective walls of the heating channel, in particular by means of an air volume which flows along the reflective walls only outside the heating channel, wherein the heating power of the heating means is adjustable. Background technique [0002] Such methods and devices are known from the prior art and are used, for example, in a blow molding machine sold by the applicant for the thermal pretreatment of preforms and their subsequent blow molding. [0003] The purpose of this method and device is to bring most of the preforms ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C49/64B29C49/68B29C49/78
CPCB29C49/64B29C49/68B29C49/786B29C49/06B29K2067/003B29C49/28008B29C49/78B29C2949/0715B29C49/6835B29C49/6845B29C49/6409B29C49/6418
Inventor D·乌卢蒂尔克J-P·拉施F·黑森东克斯
Owner KHS GMBH
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