CN101642917B - Production method of hard wood sheets in two-sandwich structure - Google Patents
Production method of hard wood sheets in two-sandwich structure Download PDFInfo
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- CN101642917B CN101642917B CN2009100420223A CN200910042022A CN101642917B CN 101642917 B CN101642917 B CN 101642917B CN 2009100420223 A CN2009100420223 A CN 2009100420223A CN 200910042022 A CN200910042022 A CN 200910042022A CN 101642917 B CN101642917 B CN 101642917B
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Abstract
The invention relates to the technical field of production methods of hard wood sheets, in particular to a production method of hard wood sheets in a two-sandwich structure, which comprises the following steps: softening wood sheets in a panel layer, flattening and dehumidifying the wood sheets in the panel layer, sending the wood sheets in the panel layer into a sheet dehumidifying room, controlling the water content of the wood sheets in the panel layer at 6-8% by the sheet dehumidifying room, processing the wood sheets in the panel layer in an accurate cutting mode to obtain standby materials with the required dimensions according to the requirements, and finally processing the wood sheets in the panel layer in a press-in mode so as to finish the production of the hard wood sheets in a two-sandwich structure. The hard wood sheets in a two-sandwich structure, which are produced by the production method, can solve the problem of easy cracking of natural hard wood sheets so as to greatly reduce the fraction defective and increase the value of furniture products.
Description
Technical field:
The present invention relates to the production method technical field of hard wood sheets, relate in particular to the production method of the hard wood sheets of two-sandwich structure.
Background technology:
In the wood furniture, often use natural senior hard wood sheets, as vortex mahogany heart wood thin slice, tree fork mahogany thin slice, tree fork walnut thin slice, flower camphorwood thin slice etc., these hard wood sheets are usually from the tree fork position of arboreal growth or the dross position of trees, and that gets is difficult for and is of great rarity.Be the position of growing up and making a variation because of the position of being got again trees; so this hard wood sheets is different fully with the character of general thin slice; if not to carrying out particular processing in the process of this hard wood sheets; the problem that it usually can ftracture; thereby improve the fraction defective of furniture item greatly, reduce the value of furniture item.
Summary of the invention:
The objective of the invention is at the deficiencies in the prior art, a kind of production method of hard wood sheets of two-sandwich structure is provided, can overcome the problem that natural hard wood sheets ftractures easily, reduce the fraction defective of furniture item greatly, promote the value of furniture item.
For achieving the above object, the present invention is achieved through the following technical solutions: the production method of the hard wood sheets of two-sandwich structure, and it may further comprise the steps:
Step 1, opposite flaggy wood thin slice softens processing, is specially:
Steps A uses softening agent and water to mix softening agent solution;
Step B immerses softening agent solution with panel layer wood thin slice, or with the positive and negative of softening agent solution spraying to panel layer wood thin slice;
Step C treats the placement of panel layer wood thin slice to do;
Step D, after waiting to do, with keeping flat after the packing of PE glued membrane opposite flaggy wood thin slice, and on panel layer wood thin slice and below pressure be provided with formation plate, make the wooden thin slice of panel layer fully softening;
Step 2, opposite flaggy wood thin slice flattens and dehumidification treatments, is specially:
Step e laminates placement with softening good panel layer wood thin slice, is that 8%～12% cold drawing separates with moisture content between the panel layer wood thin slice when laminating, and makes the wooden sheet surface drying of panel layer;
Step F laminates panel layer wood thin slice and is placed in the drying room, is that 6%～8% hot plate separates with moisture content between the panel layer wood thin slice when laminating, and the drying room temperature is controlled at 35 ℃～45 ℃;
Step G, the moisture content of detection faces flaggy wood thin slice is if moisture content≤10% then enters step 3; If moisture content＞10% then reenters step F;
Step 3 is sent panel layer wood thin slice into thin slice and is removed moist chamber, and the moisture content that removes moist chamber control panel layer wood thin slice by thin slice is 6%～8%;
Step 4, opposite flaggy wood thin slice carries out essence and cuts processing, is cut into getting the raw materials ready of required size on request;
Step 5, opposite flaggy wood thin slice carries out pressing to be handled, and is specially:
Step H gets moisture content and is 6%～8% backsheet layer wood thin slice, and backsheet layer wood thin slice is peeled into and the identical size of panel layer wood thin slice;
Step I, applying backsheet layer wood thin slice and panel layer wood thin slice, and the grain direction of backsheet layer wood thin slice and panel layer wood thin slice becomes 90 °, is placed with the film gummed paper between backsheet layer wood thin slice and panel layer wood thin slice;
Step J puts into hot press with the backsheet layer that posts wood thin slice and panel layer wood thin slice and carries out hot pressing, forms the thin slice of two-sandwich structure;
Step K after the hot pressing, at the positive and negative atomized water spray of thin slice, overlays thin slice on the flat pallet, places dull and stereotyped between every layer of thin slice;
Step L finishes the production of the hard wood sheets of two-sandwich structure.
Before carrying out step 4, get panel layer wood thin slice and do the over dry water cut test, test out the moisture content of panel layer wood thin slice, if moisture content≤10% then enters step 5 through step 4; If moisture content＞10%, then opposite flaggy wood thin slice carries out reentering step 3 after hot press oven dry leveling is handled.
Described opposite flaggy wood thin slice carries out hot press oven dry leveling processing and is specially, the panel layer wood thin slice of moisture content＞10% is sent into hot press dry leveling, oven dry leveling condition is: pressed temperature is not more than 80 ℃, the hot pressing in 1～3 minute of every interval once, put chlorine after every hot pressing once 15～25 seconds, hot pressing 3～6 times.
In the steps A of described step 1, softening agent and water are that 1: 1 proportioning mixes softening agent solution by proportion.
In the step 4, opposite flaggy wood thin slice carries out using sucker to detect thin slice piece and damaged situation after essence cuts processing, if any unusually, repairs again.
Among the step I of step 5, described film gummed paper is the film of synthetic resin gummed paper.
Among the step J of step 5, the backsheet layer that posts wood thin slice and panel layer wood thin slice are put into the hot pressing condition that hot press carries out hot pressing be: hot pressing temperature is 110 ℃～160 ℃, and hot pressing time is 3～5 minutes, hot pressing pressure be 200～225 pounds/per square inch.
In the step K of step 5, the time of stacking that thin slice overlays on the flat pallet is 22～24 hours.
Beneficial effect of the present invention is: the production method that the invention provides a kind of hard wood sheets of two-sandwich structure, this production method elder generation opposite flaggy wood thin slice softens processing, opposite flaggy wood thin slice flattens and dehumidification treatments then, again panel layer wood thin slice is sent into thin slice and remove moist chamber, the moisture content that removes moist chamber control panel layer wood thin slice by thin slice is 6%～8%, then opposite flaggy wood thin slice carries out essence and cuts processing, be cut into getting the raw materials ready of required size on request, last opposite flaggy wood thin slice carries out pressing to be handled, and finishes the production of the hard wood sheets of two-sandwich structure; Adopt the hard wood sheets of the two-sandwich structure of aforementioned production method, can overcome the problem that natural hard wood sheets ftractures easily, reduce the fraction defective of furniture item greatly, promote the value of furniture item.
The specific embodiment:
Below the present invention is further illustrated:
Embodiment one, is that example describes with the tree fork mahogany thin slice of producing two-sandwich structure, and it may further comprise the steps:
Step 1, opposite flaggy wood thin slice softens processing, and this panel layer wood thin slice is tree fork mahogany thin slice, is specially:
Steps A is that 1: 1 proportioning mixes softening agent solution by the proportion of softening agent and water; Wherein softening agent is the GW30 softening agent;
Step B immerses softening agent solution with panel layer wood thin slice and also takes out immediately, or with the positive and negative of softening agent solution spraying to panel layer wood thin slice;
Step C treats panel layer wood thin slice inclination placement to do, and be 3～5 minutes standing time;
Step D, after waiting to do, with keeping flat after the packing of PE glued membrane opposite flaggy wood thin slice, the effect of packing is to prevent that panel layer wood thin slice from contacting with air and accelerate the drying of softening agent solution, influence the infiltration of softening agent solution, on panel layer wood thin slice and below pressure be provided with heavier formation plate, place more than 2 days, make softening agent solution have time enough to be penetrated into the thin slice the inside, make panel layer wood thin slice fully softening;
Step 2, opposite flaggy wood thin slice flattens and dehumidification treatments, is specially:
Step e laminates placement with softening good panel layer wood thin slice, is that 10% cold drawing separates with moisture content between the panel layer wood thin slice when laminating, and places the wooden sheet surface drying of 2～4 angel's panel layers; Wherein moisture content is the moisture that 10% cold drawing can prevent absorbing surface flaggy wood thin slice;
Step F laminates panel layer wood thin slice and is placed in the drying room, is that 7% hot plate separates with moisture content between the panel layer wood thin slice when laminating, and places the moisture content decline that certain hour makes panel layer wood thin slice, and the drying room temperature is controlled at 40 ℃; Wherein the temperature of hot plate is close with the drying room temperature;
Step G, the moisture content of detection faces flaggy wood thin slice is if moisture content≤10% then enters step 3; If moisture content＞10% then reenters step F;
Step 3 is sent panel layer wood thin slice into thin slice and is removed moist chamber, places a couple of days, and the moisture content that removes moist chamber control panel layer wood thin slice by thin slice is 7%;
Flaggy wood thin slice carries out getting panel layer wood thin slice and doing the over dry water cut test before essence cuts processing over there, tests out the moisture content of panel layer wood thin slice, if moisture content≤10% then enters step 5 through step 4; If moisture content＞10%, then opposite flaggy wood thin slice carries out hot press oven dry leveling processing, be specially, the panel layer wood thin slice of moisture content＞10% is sent into hot press, in temperature is hot pressing 120 seconds under 78 ℃ of conditions, the hot pressing in 2 minutes of every interval once, put 20 seconds softening degrees of chlorine after every hot pressing once with increase panel layer wood thin slice, hot pressing makes that panel layer wood thin slice is smooth for 3 times altogether, can use heavy plate pressed surface flaggy wood thin slice after 24 hours then, again panel layer wood thin slice is sent into thin slice and remove moist chamber, the indoor temperature of control thin slice dehumidifying is 40 ℃, and the moisture content of chain of command flaggy wood thin slice is 7%;
The computational methods of above-mentioned over dry water cut test are, timber over dry moisture content=(timber weight-timber oven dry weight)/timber oven dry weight, and wherein, timber weight is the weight of actual measurement, the timber oven dry weight is the weight behind the timber bone dry;
Step 4, opposite flaggy wood thin slice carries out essence and cuts processing, is cut into getting the raw materials ready of required size on request; Opposite flaggy wood thin slice carries out using sucker to detect thin slice piece and damaged situation after essence cuts processing, if any unusually, is trimmed to required getting the raw materials ready again;
Step 5, opposite flaggy wood thin slice carries out pressing to be handled, and is specially:
Step H gets moisture content and is 7% backsheet layer wood thin slice, and backsheet layer wood thin slice is the cherry thin slice, and backsheet layer wood thin slice is peeled into and the identical size of panel layer wood thin slice;
Step I, applying backsheet layer wood thin slice and panel layer wood thin slice, and the grain direction of backsheet layer wood thin slice and panel layer wood thin slice becomes 90 °, is placed with the film gummed paper between backsheet layer wood thin slice and panel layer wood thin slice; The film gummed paper can be the film of synthetic resin gummed paper, can be melamine film gummed paper particularly;
Step J puts into hot press with the backsheet layer that posts wood thin slice and panel layer wood thin slice and carries out hot pressing, forms the thin slice of two-sandwich structure; Wherein hot pressing condition is: hot pressing temperature is 120 ℃, and hot pressing time is 4 minutes, hot pressing pressure be 210 pounds/per square inch;
Step K after the hot pressing, at the positive and negative atomized water spray of thin slice, overlays thin slice on the flat pallet, places dull and stereotyped between every layer of thin slice;
Step L finishes the production of the hard wood sheets of two-sandwich structure.
So far, the production of the tree of two-sandwich structure fork mahogany thin slice finishes.The tree of this two-sandwich structure was pitched the cooling of mahogany thin slice after 24 hours, carrying out hot pressing is fitted on the Furniture panel, carry out the sanding and the processing of painting again, carry out 6 heat of cooling cyclic tests then, each heat of cooling cyclic test comprises being to dry 2 hours under 50 ℃ of conditions in temperature earlier, be under-20 ℃ of conditions freezing 2 hours in temperature again, after heat of cooling cyclic test, the quality of furniture is good.
Embodiment two, with the wooden thin slice of the vortex mahogany heart of producing two-sandwich structure is that example describes, compare with embodiment one, its difference is, among the step J, the backsheet layer that posts wood thin slice and panel layer wood thin slice are put into the hot pressing condition that hot press carries out hot pressing is: hot pressing temperature is 150 ℃, and hot pressing time is 4.5 minutes, hot pressing pressure be 220 pounds/per square inch.
In sum, adopt the production method of the hard wood sheets of two-sandwich structure of the present invention, the hard wood sheets of the two-sandwich structure of producing is applied in the wood furniture, can overcome the problem that natural hard wood sheets ftractures easily, reduce the fraction defective of furniture item greatly, promote the value of furniture item.
The above only is preferred embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (8)
1. the production method of the hard wood sheets of two-sandwich structure is characterized in that, it may further comprise the steps:
Step 1, opposite flaggy wood thin slice softens processing, is specially:
Steps A uses softening agent and water to mix softening agent solution;
Step B immerses softening agent solution with panel layer wood thin slice, or with the positive and negative of softening agent solution spraying to panel layer wood thin slice;
Step C treats the placement of panel layer wood thin slice to do;
Step D, after waiting to do, with keeping flat after the packing of PE glued membrane opposite flaggy wood thin slice, and on panel layer wood thin slice and below pressure be provided with formation plate, make the wooden thin slice of panel layer fully softening;
Step 2, opposite flaggy wood thin slice flattens and dehumidification treatments, is specially:
Step e laminates placement with softening good panel layer wood thin slice, is that 8%～12% cold drawing separates with moisture content between the panel layer wood thin slice when laminating, and makes the wooden sheet surface drying of panel layer;
Step F laminates panel layer wood thin slice and is placed in the drying room, is that 6%～8% hot plate separates with moisture content between the panel layer wood thin slice when laminating, and the drying room temperature is controlled at 35 ℃～45 ℃;
Step G, the moisture content of detection faces flaggy wood thin slice is if moisture content≤10% then enters step 3; If moisture content＞10% then reenters step F;
Step 3 is sent panel layer wood thin slice into thin slice and is removed moist chamber, and the moisture content that removes moist chamber control panel layer wood thin slice by thin slice is 6%～8%;
Step 4, opposite flaggy wood thin slice carries out essence and cuts processing, is cut into getting the raw materials ready of required size on request;
Step 5, opposite flaggy wood thin slice carries out pressing to be handled, and is specially:
Step H gets moisture content and is 6%～8% backsheet layer wood thin slice, and backsheet layer wood thin slice is peeled into and the identical size of panel layer wood thin slice;
Step I, applying backsheet layer wood thin slice and panel layer wood thin slice, and the grain direction of backsheet layer wood thin slice and panel layer wood thin slice becomes 90 °, is placed with the film gummed paper between backsheet layer wood thin slice and panel layer wood thin slice;
Step J puts into hot press with the backsheet layer that posts wood thin slice and panel layer wood thin slice and carries out hot pressing, forms the thin slice of two-sandwich structure;
Step K after the hot pressing, at the positive and negative atomized water spray of thin slice, overlays thin slice on the flat pallet, places dull and stereotyped between every layer of thin slice;
Step L finishes the production of the hard wood sheets of two-sandwich structure.
2. the production method of the hard wood sheets of two-sandwich structure according to claim 1, it is characterized in that: before carrying out step 4, get panel layer wood thin slice and do the over dry water cut test, test out the moisture content of panel layer wood thin slice, if moisture content≤10% then enters step 5 through step 4; If moisture content＞10%, then opposite flaggy wood thin slice carries out reentering step 3 after hot press oven dry leveling is handled.
3. the production method of the hard wood sheets of two-sandwich structure according to claim 2, it is characterized in that: described opposite flaggy wood thin slice carries out hot press oven dry leveling processing and is specially, the panel layer wood thin slice of moisture content＞10% is sent into hot press dry leveling, oven dry leveling condition is: pressed temperature is not more than 80 ℃, the hot pressing in 1～3 minute of every interval once, put chlorine after every hot pressing once 15～25 seconds, hot pressing 3～6 times.
4. the production method of the hard wood sheets of two-sandwich structure according to claim 1 is characterized in that: in the steps A of described step 1, softening agent and water are that 1: 1 proportioning mixes softening agent solution by proportion.
5. the production method of the hard wood sheets of two-sandwich structure according to claim 1 is characterized in that: in the step 4, opposite flaggy wood thin slice carries out using sucker to detect thin slice piece and damaged situation after essence cuts processing, if any unusually, repairs again.
6. the production method of the hard wood sheets of two-sandwich structure according to claim 1, it is characterized in that: among the step I of step 5, described film gummed paper is the film of synthetic resin gummed paper.
7. the production method of the hard wood sheets of two-sandwich structure according to claim 1, it is characterized in that: among the step J of step 5, the backsheet layer that posts wood thin slice and panel layer wood thin slice are put into the hot pressing condition that hot press carries out hot pressing is: hot pressing temperature is 110 ℃～160 ℃, hot pressing time is 3～5 minutes, hot pressing pressure be 200～225 pounds/per square inch.
8. the production method of the hard wood sheets of two-sandwich structure according to claim 1, it is characterized in that: in the step K of step 5, the time of stacking that thin slice overlays on the flat pallet is 22～24 hours.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102615688A (en) * | 2011-02-01 | 2012-08-01 | 应晨霞 | Painted flexible wood veneer processing method and painted flexible wood veneer product |
| CN106182297A (en) * | 2016-07-13 | 2016-12-07 | 阜南县猛发工艺品有限公司 | A kind of method improving wicker products hardness |
| CN105965642B (en) * | 2016-07-19 | 2017-10-17 | 福建森源家具有限公司 | A kind of processing technology of rigid wood skin |
| CN107364108A (en) * | 2017-07-13 | 2017-11-21 | 邬满意 | OSB high-strength composite board mould pressing process |
| CN107984567A (en) * | 2017-11-30 | 2018-05-04 | 广西壮象木业有限公司 | A kind of Eucalyptus piece treatment process |
| CN109866297B (en) * | 2019-04-09 | 2020-09-22 | 福建农林大学 | Wood material furfuryl alcohol resin modification method based on solution quantitative adsorption |
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| EP0241302A2 (en) * | 1986-04-10 | 1987-10-14 | Meinan Machinery Works, Inc. | Apparatus for tenderizing veneer sheets |
| CN1491783A (en) * | 2002-10-24 | 2004-04-28 | 株式会社名南制作所 | Method for producing laminated wood |
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| CN1792578A (en) * | 2005-10-26 | 2006-06-28 | 哈尔滨市香坊区人造板胶粘剂研究所 | Method for producing plywood with glueing on one side and plywood mould |
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| EP0241302A2 (en) * | 1986-04-10 | 1987-10-14 | Meinan Machinery Works, Inc. | Apparatus for tenderizing veneer sheets |
| CN1491783A (en) * | 2002-10-24 | 2004-04-28 | 株式会社名南制作所 | Method for producing laminated wood |
| CN1631629A (en) * | 2005-01-11 | 2005-06-29 | 王天龙 | Technology for producing hot-pressed products of multilayer wood veneer and multilayer wood splint |
| CN1792578A (en) * | 2005-10-26 | 2006-06-28 | 哈尔滨市香坊区人造板胶粘剂研究所 | Method for producing plywood with glueing on one side and plywood mould |
Non-Patent Citations (1)
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