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An apparatus and a method of producing pulp moulded products

A technology for molding products and pulp, which is applied in the field of improving the forming process of pulp molding products, and can solve the problems of clogging of the mesh layer, lengthening the forming time, slowing down the water flow, etc.

Inactive Publication Date: 2006-01-18
GLORY TEAM INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over time, the mesh layer clogs, moisture cannot pass through the mesh layer, the water flow slows down, and the forming time is lengthened

Method used

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  • An apparatus and a method of producing pulp moulded products
  • An apparatus and a method of producing pulp moulded products
  • An apparatus and a method of producing pulp moulded products

Examples

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Effect test

no. 1 example

[0028] The first embodiment, such as image 3 As shown, apparatus 100 is a forming process utilizing "time pressure". The apparatus 100 includes a pressure chamber 102, a conduit 104 on the chamber and a mesh or porous mass 106 below the chamber. Beneath the screen 106 is a forming die 108 (this die is made of metal) with drainage holes for the liquid to flow through. For example: water can flow out from the forming hood 102, while the conduit 104 is connected to an air source; such as compressed air 110, used to provide positive pressure to the pulp in the forming hood 102.

[0029] In order to apply the present invention to the forming process, pulp 112 is injected into the forming hood 102 through an inlet (not shown) next to the forming hood, and then the air source 110 is activated to release the compressed air. For example: air pressure rises to 10 kilograms per square centimeter (kg / cm 2 ), the air pressure enters the forming hood 102 through the conduit 104, positiv...

no. 2 example

[0038] Second embodiment, such as Figure 7 The apparatus 200 shown can use: the forming process of "displacement-volumetric" (displacement-volumetric), which can also be called "positive displacement" forming method. In this apparatus 200 a piston is mounted in a grouted forming housing. And this piston is connected with motor and screw rod 206, is used as the usefulness of pushing piston 202, applies pressure on the pulp 208 by the piston, and moisture will pass through the net or porous material (porous material) on the metal mold to remove moisture from the pulp. extrude. And the activity of piston 202 can be preset with microprocessor. In this way, the strength and time of the pressure can be preset, and the pressure and time changes shown in the profile can be set. In addition, these data can also be used as a basis for errors and experiments.

[0039] The third embodiment, such as Figure 8 The device 300 shown is in close proximity to the device 100 described abov...

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Abstract

The invention relates to a forming method used for pulp molding products, including the following steps: (a) providing a container with permeability; (b) injecting pulp into the container; (c) using positive pressure to press water of the pulp containing fiber in a forming cover out from the container with permeability. Then a layer of fiber is formed on the container with permeability. The invention also discloses forming equipment which is used for the pulp molding products, including the container which is filled with the pulp. The container is provided with the permeability. And positive pressure is used to press the water of the pulp containing fiber in the forming cover out from the container with permeability. Then a layer of fiber is formed on the container with permeability. The invention makes use of the positive pressure which is combined with the vacuum to achieve the best result, thereby controlling the applied pressure completely. Therefore, different working conditions can be arranged through different parameters and loops. In addition, the process of forming and the process of cold pressing are integrated through an upper die piston which is provided with a same outer shape with a finished product.

Description

technical field [0001] The present invention relates to an apparatus and method for producing pulp molded products. The invention aims at improving the forming process of pulp molded products. Background technique [0002] Today, fiber shaped products (Pulp) have been widely used in many products, such as tableware, containers and packaging, especially degradable products. There are generally two production methods for fiber shaped products, namely Dry Method and Wet Method. The dry method refers to the tableware products that are made by folding a large dry and flat cardboard and joining various adjacent flaps. leak. The wet method is to press the wet pulp into a shape similar to the finished product, and then dry the finished product after hot pressing, so that the overall thickness of the produced product is even. [0003] The traditional wet method can be divided into six main steps, which are Shedding, Fine Carving, Dosing, Forming, Cold Press and Hot Press. Press)....

Claims

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Application Information

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IPC IPC(8): D21J5/00B29C41/16
CPCB29C41/16D21J7/00
Inventor 庄秉俊穆罕默德礼萨・阿夫沙尔梅赫拉比卢韵华
Owner GLORY TEAM INDAL
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