Device and a method for compression moulding of a fibre tray

Inactive Publication Date: 2010-12-30
SIG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The main object of the present invention is to solve the problems of previously known devices and methods for manufacturing trays of cellulose materia

Problems solved by technology

It was not unusual for the manufactured trays to have imperfections or the like, due to remainders of suspensi

Method used

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Examples

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Example

[0017]FIG. 1 shows a schematic view of the method of manufacture according to the invention, which relates to the manufacture of trays of cellulose material. The method comprises several steps that are performed at a number of different stations. In FIG. 1, five stations are represented, but the number of stations may be either less or more than five. This will be apparent from the description below of the method that is performed step by step and divided into the different station represented by the letters (A)-(E). A preferred embodiment of the manufactured tray and the device will be described in more detail following a description of the method of manufacture.

[0018](A) At the first station (A), which mainly comprises a suspension mould 1 and a male mould 2, in a first step a suspension of fibre material of cellulose is added to the opening 10 of the suspension mould 1. The suspension is divided evenly in the suspension mould thanks to its opening 10 being provided with small holes

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Abstract

A device for manufacturing a tray of cellulose material, includes:
    • a compression mould including an essentially flat bottom end and surrounding sides for compression moulding and drying of cellulose pulp to a finished tray;
    • a male mould arranged to fit into the compression mould and that includes a bottom space and lateral surfaces corresponding to the compression mould, wherein the compression mould and the male mould between themselves delimit a mould space including a base section and a side section for compression moulding of the cellulose pulp. Both the compression mould and the male mould are provided with blow and suction devices for blowing in and suction of fluid in and out of the mould space. The blow and suction devices include an inlet pipe having an inlet valve, coupled to an inlet chamber in connection with the mould space, and an outlet pipe having an outlet valve separated from the inlet pipe and coupled to an outlet chamber in connection with the mould space.

Description

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Claims

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Application Information

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Owner SIG TECH
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