CN1233524C - Lignified plastic pencil and its making technology - Google Patents
Lignified plastic pencil and its making technology Download PDFInfo
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- CN1233524C CN1233524C CN 01113121 CN01113121A CN1233524C CN 1233524 C CN1233524 C CN 1233524C CN 01113121 CN01113121 CN 01113121 CN 01113121 A CN01113121 A CN 01113121A CN 1233524 C CN1233524 C CN 1233524C
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Abstract
The present invention relates to a lignified plastic pencil and a technology for making the lignified plastic pencil by using innoxious plastic to replace wood. The raw material of the present invention comprises penholder material, pen core material and coating paint vehicle, and is mainly composed of polystyrene, polyethylene, talc powder, graphite, foaming agents, auxiliary agents and pigment. The raw material enters a compound die through a plastic extruder of the penholder material, a plastic extruder of the pen core material and a plastic extruder of the coating paint vehicle, and enters a shaping die sleeve to be shaped after compounded and molded; then shaped pencils enter a cooling water tank to be cooled, and enter a traction cutter to be cut after cooled; finally, the pencils enter a burnishing machine, a trademark typesetter and a finishing apparatus for installing skin and heads, and finished products are obtained. In the present invention, innoxious plastic is used to replace wood, so environmental protection pencils with performance better than wood pencils are produced. The present invention can save a large quantity of wood resources for a country.
Description
Technical field: the present invention relates to a kind of pen and manufacture craft thereof, particularly a kind of Lignified plastic pencil and manufacture craft thereof of utilizing non-toxic plastic to substitute timber.
Background technology: pencil is that people learn requisite study article, does the history in existing more than 300 year of pencil with solid wood, and pencil has erasability and cheap advantage, and consumption figure occupies first of the class of the whole world, and global annual consumption reaches 12,000,000,000.Expend high-quality timber ten thousand stere more than 50.China is the big export country of pencil, 8,000,000,000 of annual outlet pencils, the annual timber ten thousand stere more than 30 that consumes, this country that does not enrich for the such forest reserves of China is the predation to resource, because a large amount of felling of timber increase the water and soil area loss of China, desertification increases the weight of day by day, frequent natural calamity such as flood, dust storm, hail take place, and have caused enormous economic loss to country.It is exactly a very urgent thing that the substitute of seeking timber is like this made pencil.Chinese patent ZL94110665 has introduced " a kind of manufacture method of plastic pencil ", this patent utilization polyethylene, polypropylene, polyvinyl chloride, potter's clay, talcum powder, land plaster carry out injection mo(u)lding after the proportioning, but this patent is owing to adopted polyvinyl chloride in the prescription, make the toxicity of product to overcome, and employing injection mo(u)lding, make that the moulding process of product is comparatively complicated, product quality is difficult to control.
Summary of the invention: the purpose of this invention is to provide a kind of asepsis environment-protecting, roll up and cut Lignified plastic pencil and the manufacture craft thereof that writing quality is good, the employing extrusion molding can substitute wood raw material fully.
The object of the present invention is achieved like this: a kind of Lignified plastic pencil, raw material includes polyethylene, polypropylene, talcum powder, it is characterized in that raw material comprises penholder material, pen core material, bag paint vehicle, three kinds of raw material weight proportionings are: the penholder material: the pen core material: the bag paint vehicle is 10: 1: 1, the penholder material package is drawn together polystyrene, polyethylene/polypropylene, talcum powder, starch, blowing agent, its weight proportion is (the penholder material is in 100 parts): polystyrene 20-35 part, polyethylene/polypropylene 20-35 part, talcum powder 10-50 part, starch 1-10 part, blowing agent 0.5-10 part; The pen core material is graphite pencil pen core material or colored pencil pen core material, graphite pencil pen core material package is drawn together graphite, polystyrene, polyethylene, auxiliary agent, auxiliary agent adopts a kind of in zinc stearate and the calcium stearate, its weight proportion is (the pen core material is in 100 parts): graphite 50-80 part, polystyrene 10-30 part, polyethylene 5-20 part, auxiliary agent 1-10 part; The pen core material package of colored pencil is drawn together: high-temperature resisting pigment, polystyrene, high melting point paraffin, inserts, stearic amide, its weight proportion is (the pen core material is in 100 parts): high-temperature resisting pigment 30-50 part, polystyrene 20-40 part, high melting point paraffin 10-20 part, inserts 15-30 part, stearic amide 5-10 part bag paint vehicle comprises polystyrene, high-temperature resisting pigment, and its weight proportion is (the bag paint vehicle is in 100 parts): polystyrene 80-90 part, high-temperature resisting pigment 1-20 part;
The Lignified plastic pencil manufacture craft may further comprise the steps: to the micronize of batching, the penholder material adopts the granularity less than 10mm, and pen core material and bag paint vehicle adopt the granularity less than 5mm; Raw material is dropped into penholder plastic extruding forming machine, pen core plastic extruding forming machine, bag paint vehicle plastic extruding forming machine, and when temperature controlling is reinforced 150 ℃, temperature is controlled at 170-180 ℃ in the material, and temperature is controlled at 185 ℃ when extruding; The rotating speed of penholder plastic extruding forming machine screw rod is controlled at 20-100 to be changeed, the rotating speed of pen core plastic extruding forming machine, bag paint vehicle plastic extruding forming machine screw rod is controlled at 7-70 to be changeed, the pen core material enters compound die after pen core plastic extruding forming machine is extruded, penholder plastic extruding forming machine, bag paint vehicle plastic extruding forming machine extrusion are connected successively with compound die, penholder material and bag paint vehicle enter compound die at penholder plastic extruding forming machine, bag paint vehicle plastic extruding forming machine after extruding, and the temperature that enters mould is controlled at below 160 ℃; Enter shaper typing after the composite molding, enter the bosh cooling then, the length of bosh enters the traction cutting machine then and cuts off greater than 5 meter, enters cutting machine, trade mark alphabetic printer, dress leather point machine latter equipment at last and obtains finished product.
Effect intentionally of the present invention is: the product that the present invention obtains, and its function of use is identical with the solid wood pencil with profile, and is nontoxic, it is good to write slippery, and writing is easily wiped, and cuts easily with the pencil sharpener volume, equivalents, its price is lower than the solid wood pencil, and can save a large amount of timber resources for country.
The specific embodiment: embodiment 1: a kind of Lignified plastic pencil, it is characterized in that raw material comprises penholder material, pen core material, bag paint vehicle, the penholder material package is drawn together polystyrene, high density low-pressure polyethylene, talcum powder, starch, blowing agent, its weight proportion is (the penholder material is in 100 kilograms): 30 kilograms of polystyrene, 35 kilograms of high density low-pressure polyethylenes, 31 kilograms of talcum powder, 2 kilograms of starch, 2 kilograms of blowing agents; The pen core material package is drawn together graphite, polystyrene, polyethylene, zinc stearate auxiliary agent, and its weight proportion is (the pen core material is in 10 kilograms): 7 kilograms in graphite, 1.5 kilograms of polystyrene, 1 kilogram of polyethylene, 0.5 kilogram of zinc stearate auxiliary agent; The bag paint vehicle comprises polystyrene, high-temperature resisting pigment, and its weight proportion is (the bag paint vehicle is in 10 kilograms): 9 kilograms of polystyrene, 1 kilogram of high-temperature resisting pigment;
The Lignified plastic pencil manufacture craft may further comprise the steps: to the micronize of batching, the penholder material adopts the granularity less than 10mm, and pen core material and bag paint vehicle adopt the granularity less than 5mm; Raw material is dropped into penholder plastic extruding forming machine, pen core plastic extruding forming machine, bag paint vehicle plastic extruding forming machine, machine barrel adds the thermal recovery cast aluminum heaters, when temperature controlling is reinforced 150 ℃, temperature is controlled at 170-180 ℃ in the material, and the temperature of extrusion is controlled at 185 ℃; Screw rod is made by steel alloy, adopts compression ratio 3.2 equidistant stage casing core progressive screws.The rotating speed of penholder plastic extruding forming machine screw rod is controlled at 80 to be changeed, the rotating speed of pen core plastic extruding forming machine, bag paint vehicle plastic extruding forming machine screw rod is controlled at 20 to be changeed, the pen core material enters compound die after pen core plastic extruding forming machine is extruded, penholder plastic extruding forming machine, bag paint vehicle plastic extruding forming machine extrusion are connected successively with compound die, penholder material and bag paint vehicle enter compound die at penholder plastic extruding forming machine, bag paint vehicle plastic extruding forming machine after extruding, and the temperature that enters mould is controlled at below 160 ℃; Enter shaper typing after the composite molding, enter the bosh cooling then, the length of bosh enters the traction cutting machine then and cuts off greater than 5 meter, enters cutting machine, trade mark alphabetic printer, dress leather point machine latter equipment at last and obtains finished product.
Embodiment 2: a kind of Lignified plastic pencil, it is characterized in that raw material comprises penholder material, pen core material, bag paint vehicle, the penholder material package is drawn together polystyrene, high density low-pressure polyethylene, talcum powder, starch, blowing agent, its weight proportion is (the penholder material is in 100 kilograms): 27 kilograms of polystyrene, 30 kilograms of polypropylene, 39 kilograms of talcum powder, 3 kilograms of starch, 1 kilogram of blowing agent; The pen core material package is drawn together graphite, polystyrene, polyethylene, calcium stearate auxiliary agent, and its weight proportion is (the pen core material is in 10 kilograms): 6 kilograms in graphite, 2 kilograms of polystyrene, 1.2 kilograms of polyethylene, 0.8 kilogram of calcium stearate auxiliary agent; The bag paint vehicle comprises polystyrene, high-temperature resisting pigment, and its weight proportion is (the bag paint vehicle is in 10 kilograms): 8.5 kilograms of polystyrene, 1.5 kilograms of high-temperature resisting pigments;
The Lignified plastic pencil manufacture craft may further comprise the steps: to the micronize of batching, the penholder material adopts the granularity less than 10mm, and pen core material and bag paint vehicle adopt the granularity less than 5mm; Raw material is dropped into penholder plastic extruding forming machine, pen core plastic extruding forming machine, bag paint vehicle plastic extruding forming machine, machine barrel adds the thermal recovery cast aluminum heaters, when temperature controlling is reinforced 150 ℃, temperature is controlled at 170-180 ℃ in the material, and the temperature when extruding is controlled at 185 ℃; Screw rod is made by steel alloy, adopts compression ratio 3.2 equidistant stage casing core progressive screws.The rotating speed of penholder plastic extruding forming machine screw rod is controlled at 60 to be changeed, the rotating speed of pen core plastic extruding forming machine, bag paint vehicle plastic extruding forming machine screw rod is controlled at 10 to be changeed, the pen core material enters compound die after pen core plastic extruding forming machine is extruded, penholder plastic extruding forming machine, bag paint vehicle plastic extruding forming machine extrusion are connected successively with compound die, penholder material and bag paint vehicle enter compound die at penholder plastic extruding forming machine, bag paint vehicle plastic extruding forming machine after extruding, and the temperature that enters mould is controlled at below 160 ℃; Enter shaper typing after the composite molding, enter the bosh cooling then, the length of bosh enters the traction cutting machine then and cuts off greater than 5 meter, enters cutting machine, trade mark alphabetic printer, dress leather point machine latter equipment at last and obtains finished product.
Embodiment 3: the making of Lignified plastic colored pencil, the pen core material package of colored pencil is drawn together: high temperature resistant red pigment, polystyrene, high melting point paraffin, inserts, stearic amide, its weight proportion is (the pen core material is in 10 kilograms): 3.5 kilograms of high temperature resistant red pigments, 2.4 kilograms of polystyrene, 1.5 kilograms of high melting point paraffins, 2.0 kilograms of inserts talcum powder, 0.6 kilogram of stearic amide.All the other are identical with embodiment 1.Penholder manufacturing technology of the present invention can also be applied to the making that cosmetic pencil etc. uses a class penholder of timber.
Claims (4)
1, a kind of Lignified plastic pencil, raw material includes polyethylene, polypropylene, talcum powder, it is characterized in that raw material comprises penholder material, pen core material, bag paint vehicle, three kinds of raw material weight proportionings are: the penholder material: the pen core material: the bag paint vehicle is 10: 1: 1, the penholder material package is drawn together polystyrene, polyethylene, talcum powder, starch, blowing agent, the penholder material in 100 parts of its weight proportions is: polystyrene 20-35 part, polyethylene/polypropylene 20-35 part, talcum powder 10-50 part, starch 1-10 part, blowing agent 0.5-10 part; The pen core material is graphite pencil pen core material or colored pencil pen core material, graphite pencil pen core material package is drawn together graphite, polystyrene, polyethylene, auxiliary agent, and graphite pencil pen core material in 100 parts of its weight proportions is: graphite 50-80 part, polystyrene 10-30 part, polyethylene 5-20 part, auxiliary agent 1-10 part; Colored pencil pen core material package is drawn together: high-temperature resisting pigment, polystyrene, high melting point paraffin, inserts, stearic amide, colored pencil pen core material in 100 parts of its weight proportions is: high-temperature resisting pigment 30-50 part, polystyrene 20-40 part, high melting point paraffin 10-20 part, inserts 15-30 part, stearic amide 5-10 part; The bag paint vehicle comprises polystyrene, high-temperature resisting pigment, and the bag paint vehicle in 100 parts of its weight proportions is: polystyrene 80-90 part, high-temperature resisting pigment 1-20 part.
2, Lignified plastic pencil according to claim 1 is characterized in that: polyethylene is the high density low-pressure polyethylene.
3, Lignified plastic pencil according to claim 1 is characterized in that: inserts is a kind of in talcum powder and the clay.
4, Lignified plastic pencil according to claim 1 is characterized in that: auxiliary agent is a kind of in zinc stearate and the calcium stearate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113121 CN1233524C (en) | 2001-06-26 | 2001-06-26 | Lignified plastic pencil and its making technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01113121 CN1233524C (en) | 2001-06-26 | 2001-06-26 | Lignified plastic pencil and its making technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1334204A CN1334204A (en) | 2002-02-06 |
| CN1233524C true CN1233524C (en) | 2005-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01113121 Expired - Fee Related CN1233524C (en) | 2001-06-26 | 2001-06-26 | Lignified plastic pencil and its making technology |
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| CN (1) | CN1233524C (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100382981C (en) * | 2004-06-16 | 2008-04-23 | 何炳志 | Colourful crystal transparent pencil production method |
| CN100341479C (en) * | 2004-07-23 | 2007-10-10 | 费伯-卡斯特尔股份公司 | Lead of cosmetic pencil |
| CN100408352C (en) * | 2005-08-23 | 2008-08-06 | 周意人 | Resin composite material pencil |
| CN102001249A (en) * | 2010-10-12 | 2011-04-06 | 马铭远 | Regenerative wooden pencil and manufacturing process thereof |
| CN102533005B (en) * | 2010-12-30 | 2014-06-04 | 刘颖 | Colorful high-elastoplastic pen and making method thereof |
| CN102555599A (en) * | 2010-12-30 | 2012-07-11 | 刘颖 | Black high-elastoplasticity pen and manufacturing method thereof |
| CN102120395B (en) * | 2011-01-26 | 2012-09-05 | 杨大可 | PVC-based wood-plastic environment-friendly pencil and manufacturing method thereof |
| CN102329436B (en) * | 2011-04-11 | 2013-09-18 | 丁少忠 | Plant powder based plastic pencil and manufacturing method thereof |
| CN103029490A (en) * | 2012-11-13 | 2013-04-10 | 常州大学 | Preparing method of environment-friendly pencil |
| CN104497429A (en) * | 2014-12-10 | 2015-04-08 | 淄博龙沙高分子材料科技有限公司 | Ecological pollution-free wood-plastic pencil body material as well as preparation method and special mold thereof |
| CN105440390A (en) * | 2015-12-21 | 2016-03-30 | 江西省吉水县吉星文化用品有限公司 | Plastic pencil and preparation method thereof |
| CN106810947A (en) * | 2016-12-28 | 2017-06-09 | 浙江彭胜文教用品股份有限公司 | A kind of erasable plastics crayon and its production technology |
| CN107933144A (en) * | 2018-01-04 | 2018-04-20 | 福建农林大学 | A kind of konjaku glucomannan pencil and preparation method |
| CN108749398A (en) * | 2018-06-05 | 2018-11-06 | 安徽得亿文教用品有限公司 | The preparation moulding process of plastic pencil |
| CN111363288A (en) * | 2020-03-28 | 2020-07-03 | 上海亿彩塑料有限公司 | Modified HIPS plastic, preparation method and application thereof, and modified HIPS plastic pen holder |
| CN112158006B (en) * | 2020-10-10 | 2022-01-11 | 浙江彭胜文教用品股份有限公司 | Plastic pencil and production process thereof |
| CN114872476A (en) * | 2021-02-05 | 2022-08-09 | 安徽省助友塑料笔业有限公司 | Plastic pencil lead anti-falling method and device |
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2001
- 2001-06-26 CN CN 01113121 patent/CN1233524C/en not_active Expired - Fee Related
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| CN1334204A (en) | 2002-02-06 |
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Granted publication date: 20051228 |