CN1974154A - Process of making molded tray - Google Patents
Process of making molded tray Download PDFInfo
- Publication number
- CN1974154A CN1974154A CN 200610098335 CN200610098335A CN1974154A CN 1974154 A CN1974154 A CN 1974154A CN 200610098335 CN200610098335 CN 200610098335 CN 200610098335 A CN200610098335 A CN 200610098335A CN 1974154 A CN1974154 A CN 1974154A
- Authority
- CN
- China
- Prior art keywords
- plant
- mold pressing
- plant material
- lower mould
- make
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 241000196324 Embryophyta Species 0.000 claims description 34
- 238000003825 pressing Methods 0.000 claims description 30
- 239000002023 wood Substances 0.000 claims description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 12
- 241001330002 Bambuseae Species 0.000 claims description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 12
- 239000011425 bamboo Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- 210000002268 wool Anatomy 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 9
- 239000003292 glue Substances 0.000 description 8
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The present invention relates to molded product, and is especially process of making molded tray. The present invention has the molded tray made with tree branches and timber leftover as well as other annual and perennial plant material. The present invention has saving in timber resource, high tray quality, low power consumption and low production cost.
Description
Technical field:
The present invention relates to the forming method of pressing, particularly relate to the forming method of molded tray.
Background technology:
Pallet is important physical distribution apparatus, is to make static goods change the carrier of dynamic goods into, plays irreplaceable effect in the modern logistics system.
At present the side go up the solid wood pallet used and wood-base fibre and particle panel material piece together the nail pallet exist consume forest reserves amount big, disease and pest, shortcoming that cost is high arranged.Application number is 200510048717.4 Chinese invention patent ublic specification of application, a kind of manufacturing technique method of wood particle-moulding tray is disclosed, but the temperature process condition of this process, not only bad for energy savings, and be unfavorable for the equilibrium of material is heated, its higher hot pressing temperature also can cause solidifies sizing material because of overheated and aging, thereby influences the quality of pallet.
At the shortcoming of the method for above-mentioned technology, the present invention proposes a kind of manufacturing process of molded tray, when effectively improving the molded tray quality, saves heat energy.In addition, the present invention can also be applicable to 1 year or the perennial plant raw material, further reduces production costs, and saves timber resources.
Summary of the invention:
Technology of the present invention is:
A kind of method of making molded tray is characterized in that, comprises the steps:
(1) with the plant material drying;
(2) in dried plant material, add the sizing material and the formation mold pressing material that stirs;
(3) heat upper and lower mould, make them be in essentially identical temperature levels between 150-170 ℃, the mold pressing material is mated formation in the upper and lower mould of heating, make upper and lower mould closure, and the pressure that imposes 3.5～6.0Mpa carries out mold pressing, pressurize 4-6min.
Aforesaid plant material can be a timber, or bamboo wood, or plant stalk.
Aforesaid timber, or bamboo wood, or plant stalk is made into wood wool respectively, or the bamboo silk, or fibre bundle.
If choosing timber makes wood wool, then it is of a size of: length＜8-20mm, width＜3mm, thickness＜1mm;
If choosing bamboo wood makes the bamboo silk, then it is of a size of: length＜10-25mm, width＜2mm, thickness＜1mm;
If choose plant stalk, the form of plant stalk is fiber and fibre bundle.
Select the upper and lower mould of heating, make them be in essentially identical temperature levels between 150-170 ℃, the mold pressing material is contained in the upper and lower mould of heating, upper and lower mould closure, and the pressure that imposes 3.5～6.0Mpa carries out mold pressing, pressurize 4-6min can effectively satisfy the curing needs of glue in the mold pressing material, can fully satisfy the requirement that makes the moulding of mold pressing material compacting again.By adjustment and relative equilibrium control to upper and lower mold temperature, than existing mould pressing process, not only more accurately practical to the temperature control of compression molding, and realize preferably the harmony of material is heated, and the abundant energy savings of energy, further reduce production costs, more can effectively prevent of the infringement of higher temperature, thereby improved the quality of pallet the glue after solidifying.
Suitably the mold pressing material of form has significance for the manufacturing of molded tray, the plant of choosing above-mentioned numerical value or form is the mold pressing material, can make the glue mixing of mold pressing material more even, also make the mold pressing material have certain specific area, and satisfy mold pressing and add mold pressing in man-hour material one constant current malleability is arranged, satisfy the requirement of pallet moulding pressing.
According to technical scheme of the present invention, when making plant material dry, should make moisture content＜3 ± 0.5% of dried plant material.Select the control criterion of this moisture content, in the time of will making the compression molding of mold pressing material, effectively avoid moisture content on the low side, make plant material inhale glue in a large number, cause plant material surface starved and influence bonding strength.Also avoid moisture content higher, layering and bulge phenomenon take place when mold pressing.
According to technical solutions according to the invention, the applied amount that adds sizing material in plant material should be the 14%-15% of over dry plant material weight.Select the resin added of this ratio, can satisfy the basic demand of the certain cementing strength of needs after the plant material compression molding, can satisfy few glue of using again, the operating requirement that reduces production costs.
The plant material that the present invention is selected not only obtains easily, and cheap, but also twice laid effectively saves production cost.
The specific embodiment:
Embodiment 1:
Plant material is chosen the wood wool that timber is made, and it is of a size of: length＜8-20mm, width＜3mm, thickness＜1mm.With this wood wool plant material drying, make its moisture content＜3 ± 0.5%, add 15% urea-formaldehyde glue, stirring forms the mold pressing material.Heat upper and lower mould, make them be in 170 ℃ temperature levels, the mold pressing material is mated formation in the molding die of heating.Make upper and lower mould closure, and the pressure that imposes 4.5Mpa carries out mold pressing, pressurize 4min makes its moulding.
Embodiment 2:
Plant material is chosen the bamboo silk that bamboo wood is made, and it is of a size of: length＜20-25mm, width＜2mm, thickness＜1mm.With this bamboo silk plant material drying, make its moisture content＜3 ± 0.5%, add 14% urea-formaldehyde glue, stirring forms the mold pressing material.Heat upper and lower mould, make them be in 165 ℃ temperature levels, the mold pressing material is mated formation in molding die.Make upper and lower mould closure, and the pressure that imposes 6.0Mpa carries out mold pressing, make material heart layer temperature reach 100 ℃, pressurize 5min makes its moulding.
Embodiment 3:
Plant material is chosen the plant fasciculus that plant stalk is made.With the plant fasciculus raw material drying, make its moisture content＜3 ± 0.5%, add 15% urea-formaldehyde glue, stirring forms the mold pressing material.Heat upper and lower mould, make them be in 150 ℃ temperature levels, the mold pressing material is mated formation in molding die.Make upper and lower mould closure, and the pressure that imposes 5.0Mpa carries out mold pressing, pressurize 6min makes its moulding.
Claims (6)
1, a kind of method of making molded tray is characterized in that, comprises the steps:
(1) with the plant material drying;
(2) in dried plant material, add the sizing material and the formation mold pressing material that stirs;
(3) heat upper and lower mould, make them be in essentially identical temperature levels between 150-170 ℃, the mold pressing material is mated formation in the upper and lower mould of heating, make upper and lower mould closure, and the pressure that imposes 3.5～6.0Mpa carries out mold pressing, pressurize 4-6min.
2, manufacture method according to claim 1, its plant material are timber, or bamboo wood, or plant stalk.
3, manufacture method according to claim 2 is characterized in that, its timber, or bamboo wood, or plant stalk is made into wood wool respectively, or the bamboo silk, or fibre bundle.
4, according to claim 2 or 3 described manufacture methods, it is characterized in that its wood wool is of a size of: length＜8-20mm, width＜3mm, thickness＜1mm; Its bamboo silk is of a size of: length＜20-25mm, width＜2mm, thickness＜1mm; Its plant stalk is made fibre bundle.
5, manufacture method according to claim 1 is characterized in that, dried plant material moisture content 3 ± 0.5%.
6, manufacture method according to claim 1 is characterized in that, adds sizing material at plant material, and the solid content of sizing material is 60-65%, and its resin added is 14%～15% of an over dry plant material weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610098335 CN1974154A (en) | 2006-12-12 | 2006-12-12 | Process of making molded tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610098335 CN1974154A (en) | 2006-12-12 | 2006-12-12 | Process of making molded tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1974154A true CN1974154A (en) | 2007-06-06 |
Family
ID=38124646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610098335 Pending CN1974154A (en) | 2006-12-12 | 2006-12-12 | Process of making molded tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1974154A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009089693A1 (en) * | 2008-01-16 | 2009-07-23 | Zhang, Cuilan | Bidirectional pressing method and apparatus for forming plant fiber pallet |
| CN101298158B (en) * | 2008-04-18 | 2010-06-16 | 张翠兰 | Plant fibre pallet double-press pressing method and apparatus equipped with pressure maintaining device |
| CN102268848A (en) * | 2011-04-26 | 2011-12-07 | 杭州绿宝纸制品有限公司 | Process for producing logistics tray |
| CN106142281A (en) * | 2015-04-14 | 2016-11-23 | 东台市久胜环美农副产品有限公司 | A kind of preparation method of paper tube stopper |
| CN107363674A (en) * | 2017-06-14 | 2017-11-21 | 杭州沛诺包装科技有限公司 | The processing method of the molded tray of material based on a kind of mixing wood shavings by bamboo and wood |
-
2006
- 2006-12-12 CN CN 200610098335 patent/CN1974154A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009089693A1 (en) * | 2008-01-16 | 2009-07-23 | Zhang, Cuilan | Bidirectional pressing method and apparatus for forming plant fiber pallet |
| CN101298158B (en) * | 2008-04-18 | 2010-06-16 | 张翠兰 | Plant fibre pallet double-press pressing method and apparatus equipped with pressure maintaining device |
| CN102268848A (en) * | 2011-04-26 | 2011-12-07 | 杭州绿宝纸制品有限公司 | Process for producing logistics tray |
| CN102268848B (en) * | 2011-04-26 | 2013-04-03 | 杭州绿宝纸制品有限公司 | Process for producing logistics tray |
| CN106142281A (en) * | 2015-04-14 | 2016-11-23 | 东台市久胜环美农副产品有限公司 | A kind of preparation method of paper tube stopper |
| CN107363674A (en) * | 2017-06-14 | 2017-11-21 | 杭州沛诺包装科技有限公司 | The processing method of the molded tray of material based on a kind of mixing wood shavings by bamboo and wood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20070606 |