CN102717629B - Method for manufacturing pencils - Google Patents
Method for manufacturing pencils Download PDFInfo
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- CN102717629B CN102717629B CN201210207278.7A CN201210207278A CN102717629B CN 102717629 B CN102717629 B CN 102717629B CN 201210207278 A CN201210207278 A CN 201210207278A CN 102717629 B CN102717629 B CN 102717629B
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- eupatorium adenophorum
- stem stalk
- stems
- pencil
- adenophorum stem
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Abstract
The invention discloses a method for manufacturing pencils, wherein leaves are removed from harvested eupatorium adenophorum stems, and sifting and sorting are carried out according to the diameters of the eupatorium adenophorum stems; the sifted eupatorium adenophorum stems are parted off according to fixed dimensions; then parted air-dried eupatorium adenophorum stems are soaked in water for 5 to 12 hours or the fresh eupatorium adenophorum stems directly enter the next working procedure; heartwood parts of the water-saturated eupatorium adenophorum stems are removed; then pencil leads are directly embedded in hollow parts of the eupatorium adenophorum stems; the eupatorium adenophorum stems embedded with the pencil leads are dried, so as to lead the eupatorium adenophorum stems to hold the pencil leads; and finally, the dried eupatorium adenophorum stems are processed through grinding and polishing, lacquering, trimming, packing and baling, so as to obtain finished product. The method adopts the eupatorium adenophorum stems as material used for manufacturing the pencils, enables the eupatorium adenophorum stems to swell through water saturation, is convenient to embed the pencil leads, then leads the eupatorium adenophorum stems to hold the pencil leads through air shrinkage during the drying process, and greatly simplifies the production technology of the pencils.
Description
Technical field
The present invention relates to a kind of preparation method of stationery, especially a kind of preparation method of pencil.
Background technology
Pencil is its production technology and never very large variation of shape since invention.Its machining process is: pencil board processing unwinds log, block, and evolution saw solution becomes wooden unit, after hydrothermal treatment consists, by lath cutter, is cut into pencil board.The long 184mm of plate, wide 73mm, thick 4.8～5.2mm.And high temperature (130～200 ℃) degenerative treatments dry through heating (60～120 ℃), makes pencil board reach the softening degree that easily volume is cut again.Lead for retractable pencil processing graphite lead for retractable pencil is to prepare by a certain percentage with graphite and clay, after kncading machine, three-roller tune mix, by pressing core machine to squeeze out the certain specification size lead for retractable pencil of (if HB～3H lead core diameter is 1.80～2.10mm), dry and high temperature (800～1100 ℃) roasting through heating (50～150 ℃), make it have certain mechanical strength and hardness, finally by oil immersion, process and make.The processing of color lead for retractable pencil and graphite lead core are similar, but do not need to carry out sintering.Processing method has two kinds: a kind of is after clay, talcum powder, adhesive, colorant, grease and wax etc. are mixed, and through moulding, dry and make, is called mixing method; Another kind is be squeezed into lead for retractable pencil or the lead for retractable pencil of drying is placed in wick container after china clay, talcum powder, colorant and adhesive etc. are mixed, and makes at a certain temperature it fully absorb grease and makes, and is called immersion method.It is 4.1～4.2mm that pencil shaft processing is planed into thickness with keyway planer by pencil board, the frid of the core groove that Bing Youyu lead core diameter adapts, then use adhesive that lead for retractable pencil and pencil board are glued together, under clamped condition, heating (50～120 ℃) was dried after 1～8 hour, through the machined of plane bar, made the white shaft pencil that length is 178～180mm.Decorative appearance processing is painted white shaft pencil and printing ornament, and cuts light, identification marking, the first-class processing of dress rubber, become there is certain specification, the finished product pencil of appearance color and floral designs.Present pencil shaft material is mainly to take timber as main, and adopts timber very complicated as the processing mode of pencil shaft, and production cost is higher.
Summary of the invention
The object of the invention is: a kind of preparation method of pencil is provided, and its mode of production is simple, and material source is extensive, and with low cost, to overcome the deficiencies in the prior art.
The present invention is achieved in that the preparation method of pencil, it is characterized in that: the Eupatorium adenophorum cane defoliation by gathering, carries out sifting sort according to the diameter of Eupatorium adenophorum stem stalk; The Eupatorium adenophorum stem stalk having screened is cut by fixed dimension; To divide the air-dry Eupatorium adenophorum stem stalk cutting be soaked in water 5～12 hours or fresh Eupatorium adenophorum stem stalk is directly entered to subsequent processing again; The heartwood of the Eupatorium adenophorum stem stalk of full water is partly sloughed, form the Eupatorium adenophorum stem stalk of hollow; Again lead for retractable pencil is directly implanted in the hollow space of Eupatorium adenophorum stem stalk; Then the Eupatorium adenophorum stem stalk of having implanted lead for retractable pencil is dried, makes Eupatorium adenophorum stem stalk clasp lead for retractable pencil; Finally by dried Eupatorium adenophorum stem stalk after sanding and polishing, japanning, arrangement, packing and packing, obtain finished product.
It is 100 ℃～280 ℃ that the Eupatorium adenophorum stem stalk of having implanted lead for retractable pencil is carried out to dry temperature, and the time is 5～30 minutes, or to adopt natural air drying to the water content of Eupatorium adenophorum stem stalk be below 12%.
Eupatorium adenophorum (Crofton Weed), perennial herb or undershrub." killer " in plant kingdom, not even a blade of grass grows in place of arrival, and cattle and sheep are poisoning.Can carry out generative propagation and vegetative propagation, extremely strong to the adaptability of environment, no matter at arid barren barren hill unoccupied place, the top of a wall, Yan Kan, in crack of stone, also can grow.In 2010, after Southwest China great drought, overgrow and spread, threaten the growth of crops.Eupatorium adenophorum is harmful organism, does not generally have productive value.
The cane dimension pipe of Eupatorium adenophorum is grown and is possessed pipeline model feature, its underpart branch is due to illumination deficiency withered coming off gradually, the pipeline that connects these leaves remains in cane, under discarded pipeline accumulates gradually in cane, form the heartwood part in cane, this part is loosened or hollow, and the speciality of utilizing this part conveniently to slough of the present invention, replaces heartwood with lead for retractable pencil.In the water saturation process of producing, Eupatorium adenophorum stem stalk can expand, and its air-dry stem stalk external diameter expansion rate can reach 32.22 ± 3.39%, and longitudinal dilatation rate is only 0.38 ± 0.12%; And the expansion rate of core part can reach 37.24 ± 8.12%, after core demi-inflation, its diameter can reach 3.02 ± 0.13mm, is greater than the diameter 2.08mm of common lead for retractable pencil; Now with card punch, can be easy to punching and slough the core in stem stalk, form hollow stem stalk; Again the hollow stem stalk of sloughing core is implanted to lead for retractable pencil in time; Then the Eupatorium adenophorum stem stalk sizing of implanting lead for retractable pencil is dry, in dry run because the longitudinal contract with dry rate of stem stalk is very low, and radial shrinkage rate is very high, the diameter of air-dry rear core part can reach 1.67 ± 0.14mm, and the diameter of common lead for retractable pencil is 2.08mm, in dry run, Eupatorium adenophorum stem stalk radial contraction, forms good clasping to lead for retractable pencil.
Owing to adopting above-mentioned technical scheme, compared with prior art, the present invention adopts Eupatorium adenophorum cane as the material of making pencil shaft, utilizes water saturation to make to slough core part after the expansion of Eupatorium adenophorum cane, the convenient lead for retractable pencil of implanting, by dry, make Eupatorium adenophorum cane drying shrinkage clasp lead for retractable pencil again, thereby the production technology of having simplified greatly pencil, the present invention takes full advantage of Eupatorium adenophorum, has played the effect of turning waste into wealth, save timber, reduced environmental pressure.The inventive method is simple, and material source is extensive, low production cost, and result of use is good.
The specific embodiment
Embodiments of the invention 1: the preparation method of pencil, the Eupatorium adenophorum cane defoliation by air-dry, carries out sifting sort according to the diameter of Eupatorium adenophorum stem stalk; The Eupatorium adenophorum stem stalk having screened is cut by fixed dimension; To divide the air-dry Eupatorium adenophorum stem stalk cutting to be soaked in water 5～12 hours again; The heartwood of the Eupatorium adenophorum stem stalk of full water is partly sloughed, form the Eupatorium adenophorum stem stalk of hollow; Again lead for retractable pencil is directly implanted in the hollow space of Eupatorium adenophorum stem stalk; Then the Eupatorium adenophorum stem stalk of having implanted lead for retractable pencil is dried, dry temperature is 100～280 ℃, and the time is 5～30 minutes; Make Eupatorium adenophorum stem stalk clasp lead for retractable pencil; Finally by dried Eupatorium adenophorum stem stalk after sanding and polishing, japanning, arrangement, packing and packing, obtain finished product.
Embodiments of the invention 2: the preparation method of pencil, the fresh Eupatorium adenophorum cane defoliation by gathering, carries out sifting sort according to the diameter of Eupatorium adenophorum stem stalk; The Eupatorium adenophorum stem stalk having screened is cut by fixed dimension; The heartwood of the Eupatorium adenophorum stem stalk of full water is partly sloughed, form the Eupatorium adenophorum stem stalk of hollow; Again lead for retractable pencil is directly implanted in the hollow space of Eupatorium adenophorum stem stalk; Then the Eupatorium adenophorum stem stalk of having implanted lead for retractable pencil is carried out doing under natural wind condition to the water content of Eupatorium adenophorum stem stalk be below 12%, make Eupatorium adenophorum stem stalk clasp lead for retractable pencil; Finally by dried Eupatorium adenophorum stem stalk after sanding and polishing, japanning, arrangement, packing and packing, obtain finished product.
Claims (2)
1. a preparation method for pencil, is characterized in that: by the fresh Eupatorium adenophorum cane defoliation of gathering, or directly collect air-dry Eupatorium adenophorum stem stalk, according to the diameter of Eupatorium adenophorum stem stalk, carry out sieving and grading; The Eupatorium adenophorum stem stalk having screened is cut by fixed dimension; To divide the air-dry Eupatorium adenophorum stem stalk cutting be soaked in water 5～12 hours or fresh Eupatorium adenophorum stem stalk is directly entered to subsequent processing again; The heartwood of the Eupatorium adenophorum stem stalk of full water is partly sloughed, form the Eupatorium adenophorum stem stalk of hollow; Again lead for retractable pencil is directly implanted in the hollow space of Eupatorium adenophorum stem stalk; Then the Eupatorium adenophorum stem stalk of having implanted lead for retractable pencil is dried, makes Eupatorium adenophorum stem stalk clasp lead for retractable pencil; Finally by dried Eupatorium adenophorum stem stalk after sanding and polishing, japanning, arrangement, packing and packing, obtain finished product.
2. the preparation method of pencil according to claim 1, it is characterized in that: it is 100 ℃～280 ℃ that the Eupatorium adenophorum stem stalk of having implanted lead for retractable pencil is carried out to dry temperature, time is 5～30 minutes, or to adopt natural air drying to the water content of Eupatorium adenophorum stem stalk be below 12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207278.7A CN102717629B (en) | 2012-06-21 | 2012-06-21 | Method for manufacturing pencils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210207278.7A CN102717629B (en) | 2012-06-21 | 2012-06-21 | Method for manufacturing pencils |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102717629A CN102717629A (en) | 2012-10-10 |
| CN102717629B true CN102717629B (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210207278.7A Expired - Fee Related CN102717629B (en) | 2012-06-21 | 2012-06-21 | Method for manufacturing pencils |
Country Status (1)
| Country | Link |
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| CN (1) | CN102717629B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002586B (en) * | 2014-05-22 | 2016-01-27 | 福建农林大学 | A kind of pencil slat and preparation method thereof |
| CN108569063B (en) * | 2018-04-19 | 2021-01-29 | 南浔善琏松柏湖笔厂 | Small regular script writing brush and glue-free water manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS492134B1 (en) * | 1970-11-07 | 1974-01-18 | ||
| EP0518018A1 (en) * | 1991-06-13 | 1992-12-16 | Lydall, Inc. | Rigid fiberboard |
| CN1393350A (en) * | 2001-06-29 | 2003-01-29 | 田应官 | Technology for making pencil with straw and stalk |
| CN101016012A (en) * | 2007-01-15 | 2007-08-15 | 翟云升 | Soft wood sprig pencil |
| CN102463777A (en) * | 2010-11-04 | 2012-05-23 | 马连军 | Green environment-friendly pencil |
-
2012
- 2012-06-21 CN CN201210207278.7A patent/CN102717629B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS492134B1 (en) * | 1970-11-07 | 1974-01-18 | ||
| EP0518018A1 (en) * | 1991-06-13 | 1992-12-16 | Lydall, Inc. | Rigid fiberboard |
| CN1393350A (en) * | 2001-06-29 | 2003-01-29 | 田应官 | Technology for making pencil with straw and stalk |
| CN101016012A (en) * | 2007-01-15 | 2007-08-15 | 翟云升 | Soft wood sprig pencil |
| CN102463777A (en) * | 2010-11-04 | 2012-05-23 | 马连军 | Green environment-friendly pencil |
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| Publication number | Publication date |
|---|---|
| CN102717629A (en) | 2012-10-10 |
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Granted publication date: 20140813 Termination date: 20160621 |