CN1111380C - Formation method for wholly-degradable disposable tableware and mould structure thereof - Google Patents
Formation method for wholly-degradable disposable tableware and mould structure thereof Download PDFInfo
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- CN1111380C CN1111380C CN 98112866 CN98112866A CN1111380C CN 1111380 C CN1111380 C CN 1111380C CN 98112866 CN98112866 CN 98112866 CN 98112866 A CN98112866 A CN 98112866A CN 1111380 C CN1111380 C CN 1111380C
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Abstract
The present invention discloses a forming method of full-degradation disposable tableware and a mold structure thereof. Materials are added to a mold which is composed of an upper mold, a center mold and a lower mold, wherein in the process of pressing tableware by the mold, the lower mold is fixed, and intermittent mold match and mold unloading are carried out to the center mold and the upper mold to rapidly discharge water content and volatile matter in the materials so as to form tableware at one time. Compared with the prior art, a production technology is simplified, device investment is reduced, production efficiency is enhanced, product cost is reduced, and the present invention is very favorable for full automation production. Moreover, the present invention is suitable for the production of tableware of paper pulp products or plant fiber products and can be made into disposable dinner boxes, bowls, dishes, cups, chopsticks, etc.
Description
The present invention relates to a kind of manufacture method of full-degradable disposable tableware and make in the mould structure that uses.
Bring the problem of " white pollution ", " white pollution " in order to solve current use foamed plastics tableware, the countries in the world huge fund that spares no expense is studied full-degradable disposable tableware, the environment for human survival that goes from bad to worse with rescue.Existing wholly-degradable disposable tableware mainly contains paper products and plant fiber products.The forming method of paper products tableware is by the paper pulp moulding technology moulding.Step is for to inject paper pulp in the silk screen mould of mould, by vacuum dehydration, cold pressing dehydration, hot-press solidifying, and last trimming for forming.Adopt this kind technical process mainly to have following several problem: the one, complex process, formed product needs in two steps, and slip casting in make-up machine, the vacuum dehydration of drawing water, cold pressing before this is with the silk screen mould to be transferred to hot-press solidifying in the setting machine then, separate the silk screen mould again, cut edge by bead cutter at last and make.The 2nd, silk screen mould breakage rate height in pressing process increases product cost.The 3rd, the silk screen mould separates with product can only increase working strength of workers by hand, is difficult for realizing automated production.And plant fiber products is to be main raw material the straw of crops, is crushed to 30 orders as wheat straw, straw, bagasse etc., and add-on type agent then is hot-forming.The main problem that exists is in the process of moulding, is difficult to discharge fast moisture content and volatile materials in the material.Thereby quality, product qualified rate and the production efficiency of product have directly been influenced.
At having problems in the above-mentioned prior art, the forming method and the mould structure thereof that the purpose of this invention is to provide a kind of wholly-degradable disposable tableware, it is applicable to the production of moulded paper pulp product or plant fiber products tableware, can simplify existing complicated technology, make production cost reduce, alleviate working strength of workers, make paper pulp or string in mould, discharge the moisture content one-shot forming fast, be convenient to automated production.
In order to reach above-mentioned goal of the invention, technical scheme of the present invention realizes as follows:
The forming method of wholly-degradable disposable tableware, its employed main raw material is paper pulp or string, mainly comprises the steps:
The first step, the paper pulp that will dewater add waterproof, anti-oil additive, are prepared into moisture content less than 30% material, perhaps string are crushed to 30 orders, and the add-on type agent is mixed with moisture content less than 30% material.
Second step, it is in 120 ℃ to 200 ℃ the mould that above-mentioned material is added the heating-up temperature of being made up of patrix, middle mould and three layers of form of counterdie, the upper die and lower die form fit of this mould can be made the multiple shape of tableware, the place that heals up, the middle part that the middle mould of this mould is positioned at its upper die and lower die dual-side.
The 3rd step in mould compacting tableware process, fixed counterdie, middle mould and patrix batch (-type) matched moulds, die sinking, and perhaps fixing patrix, middle mould and counterdie batch (-type) matched moulds, die sinking, the moisture content and the volatile matter of discharging fast in the material make the tableware one-shot forming.
Be used to realize the mould structure of wholly-degradable disposable tableware forming method, it comprises that shape mates, can be pressed into the upper die and lower die of multiple shape tableware mutually.Its design feature is, the middle part of described upper die and lower die dual-side heals up and locates to be equipped with middle mould, counterdie and support are fixed, middle mould and patrix are connected with the stroke cylinder that it is moved up and down respectively, each stroke cylinder is controlled by set sequence valve, make mould and patrix batch (-type) matched moulds, die sinking according to certain rules in each, be equipped with heating in patrix and the counterdie, can make mold temperature be heated to 120 ℃ to 200 ℃.
Proof is used forming method of the present invention and mould structure thereof by experiment, can make paper products tableware and the one-shot forming of plant fiber products tableware.Simplified the slip casting of moulded pulp set for dining in the moulding process technical process such as draining, hot-forming, side cut of drawing water, cold pressing, making repeatedly, moulding becomes one-shot forming.Making make-up machine, setting machine, three simplified equipment of bead cutter is a former, has saved the silk screen mould that uses in original technology simultaneously.Compare with prior art, simplified production technology, reduced equipment investment, improved production efficiency, reduced product cost, very be beneficial to full-automatic production.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the mould structure schematic diagram that forming method of the present invention uses;
Fig. 2 is the another kind of shape embodiment of the mould structure schematic diagram that forming method of the present invention uses.
The forming method of wholly-degradable disposable tableware, its employed main raw material is paper pulp or string, string comprises wheat straw, straw, rice hulls, corn stalk, reed bar, saw foam, wood shavings, cotton bar etc.The first step, the paper pulp that will dewater add waterproof, anti-oil additive, are prepared into moisture content less than 30% material, perhaps above-mentioned string are crushed to 30 orders, and the add-on type agent is mixed with moisture content less than 30% material.In second step, it is in 120 ℃ to 200 ℃ the mould that above-mentioned material is added the heating-up temperature of being made up of patrix, middle mould and counterdie, the form employing electrical heating of heating.The upper die and lower die form fit of this mould can be made the tableware of multiple shape, as bowl, box, cup, dish, chopsticks etc.The place that heals up, the middle part that the middle mould of this mould is positioned at its upper die and lower die dual-side.The 3rd step in mould compacting tableware process, fixed counterdie, middle mould and patrix batch (-type) matched moulds, die sinking, and perhaps fixing patrix, middle mould and counterdie batch (-type) matched moulds, die sinking, the moisture content and the volatile matter of discharging fast in the material make the tableware one-shot forming.
Referring to Fig. 1 and Fig. 2, be used to implement the mould structure of the forming method of wholly-degradable disposable tableware, it comprises that shape mates, can be pressed into the patrix 1 and the counterdie 3 of multiple shape tableware mutually.Fig. 1 is the mould structure profile of compacting lunch box, and Fig. 2 is the mould structure profile of compacting chopsticks, and the shape that changes patrix 1 and counterdie 3 certainly also can suppress shapes such as bowl, cup, plate.The middle part of described patrix 1 and counterdie 3 dual-sides heal up the place be equipped with in mould 2.Counterdie 3 is fixed with support, and middle mould 2 and patrix 1 are connected with respectively and can make its stroke cylinder that moves up and down 4, and each stroke cylinder 4 is controlled by set sequence valve, mould 2 and patrix 1 batch (-type) matched moulds, die sinking according to certain rules in making.Be equipped with heating in patrix 1 and the counterdie 3, can make mold temperature be heated to 120 ℃ to 200 ℃.Each stroke cylinder 4 adopts pneumatic linear actuator or hydraulic jack.When using mould structure of the present invention, according to above-mentioned forming method of the present invention, material is added in the mould, the operating sequence valve, move up and down realization batch (-type) matched moulds, die sinking by mould 2 and patrix 1 in each stroke cylinder 4 drive, can discharge moisture content and volatile matter in the material fast, make the tableware one-shot forming of being suppressed.
Claims (6)
1. the forming method of a wholly-degradable disposable tableware, its employed raw material is paper pulp or string, it is characterized in that:
The first step, the paper pulp that will dewater add waterproof, anti-oil additive, are prepared into moisture content less than 30% material, perhaps string are crushed to 30 orders, and the add-on type agent is mixed with moisture content less than 30% material;
Second step, it is in 120 ℃ to 200 ℃ the mould that above-mentioned material is added the heating-up temperature of being made up of patrix, middle mould and three layers of form of counterdie, the upper die and lower die form fit of this mould can be made the multiple shape of tableware, the place that heals up, the middle part that the middle mould of this mould is positioned at its upper die and lower die dual-side;
The 3rd step in mould compacting tableware process, fixed counterdie, middle mould and patrix batch (-type) matched moulds, die sinking, and perhaps fixing patrix, middle mould and counterdie batch (-type) matched moulds, die sinking, the moisture content and the volatile matter of discharging fast in the material make the tableware one-shot forming.
2. according to the described forming method of claim 1, it is characterized in that: described string comprises wheat straw, straw, bagasse, rice hulls, corn stalk, reed bar, saw foam, wood shavings, cotton stalk.
3. according to the described forming method of claim 2, it is characterized in that: the multiple shape of described tableware comprises bowl, box, cup, plate, chopsticks.
4. according to claim 1,2 or 3 described forming methods, it is characterized in that: the form of described mold heated adopts electrical heating.
5. be used to realize the mould structure of the described forming method of claim 1, it comprises that shape mates mutually, can be pressed into the patrix (1) and the counterdie (3) of multiple shape tableware, it is characterized in that: the middle part of described patrix (1) and counterdie (3) dual-side heals up and locates to be equipped with middle mould (2), counterdie (3) is fixed with support, middle mould (2) and patrix (1) are connected with respectively and can make its stroke cylinder that moves up and down (4), each stroke cylinder (4) is controlled by set sequence valve, make middle mould (2) and patrix (1) batch (-type) matched moulds according to certain rules, die sinking, be equipped with heating in patrix (1) and the counterdie (3), can make mold temperature be heated to 120 ℃ to 200 ℃.
6. according to the described mould structure of claim 5, it is characterized in that: described each stroke cylinder (4) adopts pneumatic linear actuator or hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98112866 CN1111380C (en) | 1998-05-06 | 1998-05-06 | Formation method for wholly-degradable disposable tableware and mould structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98112866 CN1111380C (en) | 1998-05-06 | 1998-05-06 | Formation method for wholly-degradable disposable tableware and mould structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1234209A CN1234209A (en) | 1999-11-10 |
| CN1111380C true CN1111380C (en) | 2003-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 98112866 Expired - Fee Related CN1111380C (en) | 1998-05-06 | 1998-05-06 | Formation method for wholly-degradable disposable tableware and mould structure thereof |
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| CN (1) | CN1111380C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321091A (en) * | 2013-06-06 | 2013-09-25 | 陕西科技大学 | Manufacturing method of novel degradable nontoxic disposable fast food bowl |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386187C (en) * | 2005-08-18 | 2008-05-07 | 周泰山 | Rice husk disposable tableware blank forming method |
| CN101082196B (en) * | 2006-06-01 | 2011-08-31 | 徐鲁夫 | Pressure injection forming method for paper standardized product |
| CN102359032A (en) * | 2011-08-19 | 2012-02-22 | 佛山市绿源纤维模塑科技有限公司 | Device and method for producing plant fiber products |
| CN108505400B (en) * | 2017-02-25 | 2022-04-12 | 郎旗 | Fiber wet forming method and aerospace plane heat insulation tile structure |
| CN106989978B (en) * | 2017-04-10 | 2019-10-08 | 沈阳精新再制造有限公司 | A kind of combination die of laser melting coating part polishing |
| CN108677619A (en) * | 2018-04-17 | 2018-10-19 | 浙江家得宝科技股份有限公司 | A kind of disposable plant fiber Anti-scald paper cup and production technology |
| CN114701207B (en) * | 2022-03-18 | 2023-08-22 | 钱巧 | Multi-station pulp molding cutlery box production system |
-
1998
- 1998-05-06 CN CN 98112866 patent/CN1111380C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321091A (en) * | 2013-06-06 | 2013-09-25 | 陕西科技大学 | Manufacturing method of novel degradable nontoxic disposable fast food bowl |
| CN103321091B (en) * | 2013-06-06 | 2015-07-22 | 陕西科技大学 | Manufacturing method of novel degradable nontoxic disposable fast food bowl |
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| Publication number | Publication date |
|---|---|
| CN1234209A (en) | 1999-11-10 |
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