KR960023515A - Method and apparatus for dry expansion molding of pulp pellet molding - Google Patents

Method and apparatus for dry expansion molding of pulp pellet molding Download PDF

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Publication number
KR960023515A
KR960023515A KR1019940036902A KR19940036902A KR960023515A KR 960023515 A KR960023515 A KR 960023515A KR 1019940036902 A KR1019940036902 A KR 1019940036902A KR 19940036902 A KR19940036902 A KR 19940036902A KR 960023515 A KR960023515 A KR 960023515A
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South Korea
Prior art keywords
raw material
molding
injection
pressure
pulp
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KR1019940036902A
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Korean (ko)
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조윤철
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조윤철
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Priority to KR1019940036902A priority Critical patent/KR960023515A/en
Publication of KR960023515A publication Critical patent/KR960023515A/en

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Abstract

본 발명은 펄프펠리트 성형물의 건식팽화 성형방법 및 장치에 관한 것이다.The present invention relates to a dry expansion molding method and apparatus for pulp pellet molding.

본 발명의 성형방법 및 장치는 신문 잡지등의 폐지로 만든 펄프펠리트(pulp pellet)를 원료로 하여 펄프펠리트 성형물을 성형하고자 하는 것으로 펄프펠리트를 바렐(2)내에서 스크류(6)의 회전과 가열에 의해 호화(糊化)시켜 반죽을 만든 후, 사출프런저(12)에 의해 고압 고속으로 진공상태의 금형(15)내부로 사출, 팽화(膨化)시켜 펄프펠리트 성형물을 성형한다.The molding method and apparatus of the present invention is to mold a pulp pellet molded product from pulp pellets made from waste paper such as newspapers and the like. After forming the dough by spinning and heating, the pulp pellet molding is molded by injecting and inflating the mold 15 in a vacuum state at a high pressure and high speed by the injection plunger 12. .

본 발명의 펄프펠리트 성형물의 건식팽화 성형방법 및 장치는 종래의 습식 펄프재 성형장치에 비하여 정확하고 고른 입체적 성형물을 얻을 수 있으며, 우수한 생산성과 경제성을 갖추고 있으며 소규모의 면적, 장비, 투자로도 설치가 가능하다.Dry expansion molding method and apparatus of the pulp pellet molding of the present invention can obtain a precise and even three-dimensional molding, compared to the conventional wet pulp material forming apparatus, has excellent productivity and economical efficiency, even with a small area, equipment, investment Installation is possible.

Description

펄프펠리트(pulp pellet) 성형물의 건식팽화(乾式膨化) 성형방법 및 장치Dry expansion expansion molding method and apparatus of pulp pellet molding

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (4)

바렐(2)내에서 회전하는 스크류(6)에 의해 원료인 펄프펠리트를 호화(糊化)하여 혼합숙성시킨 후 이것을 사출프린저(12)에 의해 원료를 진공이 유지된 금형(15)의 내부로 급속히 고압으로 사출하여 원료를 팽화시켜 펄프펠리트(pulp pellet) 성형물을 성형하는 건식팽화 성형방법 및 장치에 있어서, 상기의 방법 및 장치는, 신문 잡지등의 폐지 또는 펄프를 해섬하여 전분과 염료등의 보조재를 첨가 건조시킨 펄프펠리트(pulp pellet)를 원료로 하여 상기한 바렐(2)내에서 스크류(6)의 회전과 압출압력에 의한 기계적 에너지와 가열에 의해 원료를 호화(糊化)하여 혼합숙성시키는 방법 및 장치와, 상기한 스크류(6)에서 발생된 압출압력에 의해 원료에 일정한 압력을 유지시켜 주면서 사출실(11)로 원료를 보내는 방법 및 장치와, 상기한 사출 프런저(12)에 충격적인 고압의 압력을 가하여 금형(15)내로 원료를 순간 사출시키는 방법 및 장치와, 상기한 금형(15)을 밀폐시켜 진공흡입구(16)을 통해 진공펌프로 연결하여 진공상태를 유지할 수 있도록 하고 가열장치(17)로 금형(15)을 가열하여 원료를 사출 성형시킴으로서 원료의 원활한 충진과 팽화를 돕고 진공 건조의 효과를 얻도록 되어 있는 방법 및 장치와, 상기한 압출판(18)의 전진과 함께 압출판(18)의 뒷면에 설치된 압출공기구를 이용하여 성형물(20)을 금형(15)으로부터 이형분리시키는 방법 및 장치와, 상기한 금형(15)의 내부에 성형물과의 접촉부위를 플루오르수지로 피막처리를 하여 성형물의 이형을 용이하게 하는 방법 및 장치등으로 구성되어 있는 것을 특징으로 하는 펄프펠리트 성형물의 건식팽화 성형방법 및 장치.The pulp pellet, which is a raw material, is mixed and aged by the screw 6 rotating in the barrel 2, and then the raw material is vacuumed by the injection plunger 12. In the dry expansion molding method and apparatus for molding a pulp pellet molded product by injecting a raw material at high pressure into a high pressure, the method and apparatus are used for starch and Pulp pellets made by adding and drying auxiliary materials such as dyes are used as raw materials, and the raw materials are gelatinized by mechanical energy and heating due to rotation of the screw 6 and extrusion pressure in the barrel 2 as described above. And a method and apparatus for sending the raw material to the injection chamber 11 while maintaining a constant pressure on the raw material by the extrusion pressure generated by the screw 6, and the injection plunger described above. Shocking high at (12) Method and apparatus for instant injection of the raw material into the mold 15 by applying a pressure of, and the mold 15 is sealed to connect to the vacuum pump through the vacuum suction port 16 to maintain a vacuum state and the heating device ( 17) a method and apparatus for heating the mold 15 by injection molding the raw material to help smooth filling and swelling of the raw material and to obtain the effect of vacuum drying, and the extruded plate together with the advancement of the extruded plate 18 described above. A method and apparatus for releasing the molding 20 from the mold 15 by using an extrusion tool provided on the back side of 18, and coating the contact portion with the molding inside the mold 15 with fluororesin. Dry expansion molding method and apparatus for pulp pellet molding, characterized in that it comprises a method and apparatus for facilitating mold release of the molding. 제1항에 있어서, 상기한 바렐(2)의 외벽에 수개의 가열장치(7)와 냉각수 통로(8)를 설치하여 일정한 온도를 제어하며 원료의 호화 혼합숙성에 필요한 수분을 바렐(2)의 내부로 보충하여 줄 수 있게 물 주입구(9)를 설치한 구조와 바렐(2)에서 사출실(11)로 통하여 통로중간에 역지변(10)을 설치하여 사출시 발생되는 충격이 바렐(2)과 스크류(6)에 직접 전달되지 않도록 한 것과 원료의 역류를 방지할 수 있게 한 구조를 특징으로 하는 펄프펠리트 성형물의 건식팽화 성형방법 및 장치.According to claim 1, wherein several heating devices (7) and cooling water passages (8) are provided on the outer wall of the barrel (2) to control a constant temperature and to supply the moisture necessary for the luxury mixing of the raw material of the barrel (2) The structure in which the water inlet 9 is installed so as to be replenished internally and the impact generated during the injection by installing the reverse displacement 10 in the middle of the passage through the injection chamber 11 from the barrel 2 are barrel 2 And a structure for preventing the backflow of the raw material and preventing it from being directly transmitted to the screw (6). 제1항에 있어서, 상기한 사출프런저(12)의 반대측에 저항압력을 걸어주어 사출실(11)내부의 원료가 일정한 압력을 받을 수 있도록 사출시린더(13)에 감압변을 설치하여 일정한 압력의 유체를 공급하는 구조와, 사출시린더(13)에 축압기(accumulator)를 이용하여 사출프런저(12)의 전진시 충격적인 고압의 유체공급을 할 수 있도록 한 구조를 특징으로 하는 펄프펠리트 성형물의 건식팽화 성형방법 및 장치.According to claim 1, wherein the pressure is applied to the opposite side of the injection plunger 12, a pressure reducing valve is installed in the injection cylinder 13 so that the raw material in the injection chamber 11 can receive a constant pressure Pulpelli, characterized in that the structure for supplying a fluid of pressure, and the structure to enable the supply of shock high pressure fluid when the injection plunger 12 advances by using an accumulator (accumulator) to the injection cylinder (13) Dry expansion molding method and apparatus for a molded article. 제1항에 있어서, 상기한 밸브노즐(14)로 저압에서는 폐쇄되어 압력을 받고 있는 원료가 누출되지 않도록 하고 사출시 원료가 일정한 압력 이상의 고압을 받게되면 사출이 가능토록 밸브가 개방되는 구조를 특징으로 하는 펄프펠리트 성형물의 건식팽화 성형방법 및 장치.The valve nozzle (14) according to claim 1, wherein the valve nozzle (14) is closed at low pressure so that the raw material under pressure does not leak, and when the raw material receives a high pressure above a predetermined pressure during injection, the valve is opened to enable injection. Dry expansion molding method and apparatus for pulp pellet molding. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940036902A 1994-12-26 1994-12-26 Method and apparatus for dry expansion molding of pulp pellet molding KR960023515A (en)

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KR1019940036902A KR960023515A (en) 1994-12-26 1994-12-26 Method and apparatus for dry expansion molding of pulp pellet molding

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KR1019940036902A KR960023515A (en) 1994-12-26 1994-12-26 Method and apparatus for dry expansion molding of pulp pellet molding

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014737A (en) * 1975-05-19 1977-03-29 Brennan Robert M Method of molding preform having 600% by weight water
US4759824A (en) * 1985-01-03 1988-07-26 Mueller Dietmar Apparatus for the manufacture of combustible cases based on nitrocellulose as shaped ammunition for tubular weapons
JPS6416621A (en) * 1987-07-10 1989-01-20 Nissan Motor Resin injection and its device
JPH0397987A (en) * 1989-09-05 1991-04-23 Aikawa Tekko Kk Grinder for paper making
WO1994004360A1 (en) * 1992-08-11 1994-03-03 Phenix Composites, Inc. Board stock and method of manufacture from recycled paper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014737A (en) * 1975-05-19 1977-03-29 Brennan Robert M Method of molding preform having 600% by weight water
US4759824A (en) * 1985-01-03 1988-07-26 Mueller Dietmar Apparatus for the manufacture of combustible cases based on nitrocellulose as shaped ammunition for tubular weapons
JPS6416621A (en) * 1987-07-10 1989-01-20 Nissan Motor Resin injection and its device
JPH0397987A (en) * 1989-09-05 1991-04-23 Aikawa Tekko Kk Grinder for paper making
WO1994004360A1 (en) * 1992-08-11 1994-03-03 Phenix Composites, Inc. Board stock and method of manufacture from recycled paper

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