WO2007022695A1 - Procede de fabrication d'une plaque de moulage de pate et moule utilise - Google Patents

Procede de fabrication d'une plaque de moulage de pate et moule utilise Download PDF

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Publication number
WO2007022695A1
WO2007022695A1 PCT/CN2006/002048 CN2006002048W WO2007022695A1 WO 2007022695 A1 WO2007022695 A1 WO 2007022695A1 CN 2006002048 W CN2006002048 W CN 2006002048W WO 2007022695 A1 WO2007022695 A1 WO 2007022695A1
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WO
WIPO (PCT)
Prior art keywords
pulp
plate
molding
pressing block
mold
Prior art date
Application number
PCT/CN2006/002048
Other languages
English (en)
Chinese (zh)
Inventor
Qi Lang
Original Assignee
Qi Lang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qi Lang filed Critical Qi Lang
Publication of WO2007022695A1 publication Critical patent/WO2007022695A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
    • D21J3/12—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of sheets; of diaphragms

Definitions

  • This invention relates to a method of fabricating fibrous pulp or paper stock articles in a mold, and more particularly to a method of preparing a pulp molded sheet and a mold therefor.
  • the present invention aims to provide a mechanical strength by applying a pressure on the pulp at a lower pulp concentration without applying any substance to increase the consistency of the paper fibers along the surface of the mold.
  • the method of conforming to the required sheet material is also improved correspondingly to the production mold, which makes demolding easier.
  • a method for preparing a pulp molded sheet comprising the steps of: pulverizing waste paper into pulp, molding extrusion moisture and forming step, demolding and drying, wherein the pulp concentration is not more than 6 %; and the steps of adding natural resin and starch to the pulp in the prior art, the step of concentrating and dehydrating the mixed slurry, and the step of shaping are eliminated.
  • a mold for preparing a pulp molded board according to the above preparation method comprising a surrounding frame, a pressing block and a cover plate having a drainage hole, and a cavity formed by the above three, characterized in that between the surrounding frame and the cover plate
  • the relative movement, that is, the surrounding frame and/or the cover plate can be linearly moved by the power device; the effective working stroke of the pressing block in the cavity is not less than 9 times the thickness of the obtained molded plate, and the effective operation of the pressing block
  • the stroke refers to the linear distance traveled by the pressure stop of the sheet from the start of the pressing of the pulp to the set density at the set pressure.
  • the mold for preparing a paper pulp molded plate is characterized by further comprising a mounting plate and a set of columnar cores fixed thereto, the mounting plate being located at a periphery of the pressing block on the opposite side of the cover plate, and the mounting plate corresponding to the molding device
  • the push rod position has a through hole through which the push rod passes, and the cylindrical core is located inside the cavity; the press block is sleeved on the cylindrical core and can be slid along the core under the push of the push rod.
  • a pulp molding plate prepared according to the above preparation method and using the above mold which is a solid plate or a plate with a through hole, characterized in that the concentration of the original pulp is not more than 6%, and the fiber structure of the plate is horizontally layered. structure.
  • the advantages of the present invention are obvious: the process of the preparation method disclosed by the invention is greatly simplified, the raw material cost is also greatly reduced; the structure of the mold used also makes the demoulding easier, thereby further simplifying The process reduces the cost; the produced sheet has a marked increase in tensile strength and flexural strength while ensuring sufficient compressive strength, thereby having better comprehensive performance; and, in addition to pulp, Without any added substances, it is more conducive to the recycling of products, with more ideal economic and social benefits. Moreover, due to the structure of the mounting plate and the cylindrical mandrel on the mold, the plate with the through hole can be made, and the material consumption can be further reduced and the cost can be saved under the premise of ensuring the use performance. This product can be widely used in industrial packaging, transportation, construction, decoration and office equipment supplies, etc., with great market potential.
  • Figure 1 is a mold for preparing a pulp molded sheet according to the present invention.
  • cover plate 2 In the figure, 1, cover plate 2, enclosure 3, clamp 4, mounting plate 5, cylindrical mandrel 6, drainage hole on the cover plate 7, drainage hole on the pressure block 8, cavity 9, push rod.
  • the cover plate 1 or the surrounding frame 2 is fixed on the frame of the molding device, and the pressing block 3 is moved up and down by the push rod 9.
  • the cover plate 1, the surrounding frame 2 and the pressing block 3 form a space-variable closed cavity. 8.
  • a certain amount of pulp (not more than 6%) is crushed into the pulp, and the compact 3 is pressed by the pusher 9 to press the pulp, and the water in the pulp passes through the compact.
  • the drainage hole 7 and the drainage hole 6 on the cover plate are discharged, and the paper fibers are horizontally deposited along the surface of the mold. When compacted, the paper fibers form a single horizontal layer structure; pulling up the frame 2 or the cover plate 1 and pressing the block 3 Continue to push the formed product out of the cavity 8; after drying, the preparation of the pulp molded plate is completed.
  • the waste paper is broken into a pulp having a concentration of 6%, and added to the dry pulp.
  • the weight ratio of 5% saponified rosin (40% rosin) and 7% aluminum sulfate, the mixed slurry was injected into the cavity of the mold, and the compact was pressed under the pressure of the set pressure control. The water is discharged until the dry pulp density reaches 0.6 g/cm 3 .
  • the actual effective working stroke of the compact is 9 cm, which can be defined by the formula [ ( P / P ffl ) - l] * b ( Where P and P rs represent the dry pulp density before and after compression molding, and P is approximately equal to the pulp concentration, and b represents the thickness of the sheet).
  • the product was made into a sample of 200*130*10 mm, and the bending strength test was performed on the bending machine: the sample was placed on two fulcrums having a distance of 140 mm. (The two points are symmetric about the center of the bending machine head), the bending head of the bending machine is pressed down, and the pressure value when the deflection of the sample reaches 10 legs is recorded.
  • the test results are as follows:

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Paper (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

Ce procédé de fabrication d'une plaque de moulage de pâte comprend un certain nombre d'états, notamment immersion des déchets papier et broyage afin d'obtenir une pâte, puis compression et moulage, démoulage et séchage. Ce procédé est caractérisé en ce que la teneur en pâte ne dépasse pas 6 %. Il n'est alors plus nécessaire de mélanger la résine naturelle et l'amidon dans la pâte, de concentrer et déshumidifier la matière mélangée de conformer la pâte. Le moule est caractérisé par le mouvement relatif entre son corps et le couvercle. L'usinage du bloc de pression dans le moule est d'au moins 9 fois l'épaisseur de l'article moulé. La plaque de moulage de pâte est solide ou perforée et sa texture fibreuse présente une structure lamellée horizontale. Le procédé est avantageusement simplifié, les coûts réduits et le produit présente un meilleur fonctionnement s'avérant, à la fois, plus économique et mieux adapté aux besoins de la société. Application dans l'industrie d'emballage, stockage et de transport, dans l'industrie du bâtiment, dans les équipements de bureau, entre autres.
PCT/CN2006/002048 2005-08-22 2006-08-14 Procede de fabrication d'une plaque de moulage de pate et moule utilise WO2007022695A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN200510047074.1 2005-08-22
CN200510047074 2005-08-22
CN200510106235 2005-09-17
CN200510106235.X 2005-09-17
CN200610106626.6 2006-07-22
CN200610106626 2006-07-22

Publications (1)

Publication Number Publication Date
WO2007022695A1 true WO2007022695A1 (fr) 2007-03-01

Family

ID=37771225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/002048 WO2007022695A1 (fr) 2005-08-22 2006-08-14 Procede de fabrication d'une plaque de moulage de pate et moule utilise

Country Status (1)

Country Link
WO (1) WO2007022695A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130228301A1 (en) * 2010-11-11 2013-09-05 Qi Lang Pulp moulded plate and preparation apparatus thereof

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1108516A (zh) * 1994-03-18 1995-09-20 山东省莱州市第一制帽厂 一次性用餐容器的制备工艺
CN1140576A (zh) * 1995-07-17 1997-01-22 北京市畅达贸易公司 热压与真空模注纸餐具及其成型方法
CN1150984A (zh) * 1995-07-03 1997-06-04 索尼株式会社 可成型纸浆以及制备成型纸浆产品的方法
JPH09324399A (ja) * 1996-06-04 1997-12-16 Oji Paper Co Ltd パルプモールドの製造方法
CN1208098A (zh) * 1997-08-07 1999-02-17 赖建东 盛装食物用纸容器制造方法
US6149772A (en) * 1993-04-15 2000-11-21 Brodrene Hartmann A/S Modular moulding tools for use in a machine for manufacturing shells or thin-walled blanks from pulp material
CN1323937A (zh) * 2000-02-21 2001-11-28 七环机械电子工程公司 一种纸浆模塑制品的生产工艺
CN2466206Y (zh) * 2001-01-07 2001-12-19 浙江衢州绿色餐具有限公司 纸浆模塑模具
CN2495681Y (zh) * 2001-06-13 2002-06-19 谭延笑 一次成型并湿压干燥的纸浆模压机
CN1394729A (zh) * 2002-08-05 2003-02-05 张晶廷 一种高压石膏砌块及其连续成型机
CN2573541Y (zh) * 2002-08-27 2003-09-17 李百泉 大型纸浆模模具
CN1458043A (zh) * 2002-05-18 2003-11-26 苏炳龙 精制纸质鲜蛋包装托架生产工艺
US6706151B1 (en) * 1999-03-26 2004-03-16 Southern Pulp Machinery (Pty) Limited Pulp moulding process and related system

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6149772A (en) * 1993-04-15 2000-11-21 Brodrene Hartmann A/S Modular moulding tools for use in a machine for manufacturing shells or thin-walled blanks from pulp material
CN1108516A (zh) * 1994-03-18 1995-09-20 山东省莱州市第一制帽厂 一次性用餐容器的制备工艺
CN1150984A (zh) * 1995-07-03 1997-06-04 索尼株式会社 可成型纸浆以及制备成型纸浆产品的方法
CN1140576A (zh) * 1995-07-17 1997-01-22 北京市畅达贸易公司 热压与真空模注纸餐具及其成型方法
JPH09324399A (ja) * 1996-06-04 1997-12-16 Oji Paper Co Ltd パルプモールドの製造方法
CN1208098A (zh) * 1997-08-07 1999-02-17 赖建东 盛装食物用纸容器制造方法
US6706151B1 (en) * 1999-03-26 2004-03-16 Southern Pulp Machinery (Pty) Limited Pulp moulding process and related system
CN1323937A (zh) * 2000-02-21 2001-11-28 七环机械电子工程公司 一种纸浆模塑制品的生产工艺
CN2466206Y (zh) * 2001-01-07 2001-12-19 浙江衢州绿色餐具有限公司 纸浆模塑模具
CN2495681Y (zh) * 2001-06-13 2002-06-19 谭延笑 一次成型并湿压干燥的纸浆模压机
CN1458043A (zh) * 2002-05-18 2003-11-26 苏炳龙 精制纸质鲜蛋包装托架生产工艺
CN1394729A (zh) * 2002-08-05 2003-02-05 张晶廷 一种高压石膏砌块及其连续成型机
CN2573541Y (zh) * 2002-08-27 2003-09-17 李百泉 大型纸浆模模具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130228301A1 (en) * 2010-11-11 2013-09-05 Qi Lang Pulp moulded plate and preparation apparatus thereof
US8795474B2 (en) * 2010-11-11 2014-08-05 Qi Lang Pulp moulded plate and preparation apparatus thereof

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