CN109397407A - A kind of manufacturing method of multi-plywood - Google Patents
A kind of manufacturing method of multi-plywood Download PDFInfo
- Publication number
- CN109397407A CN109397407A CN201811235957.9A CN201811235957A CN109397407A CN 109397407 A CN109397407 A CN 109397407A CN 201811235957 A CN201811235957 A CN 201811235957A CN 109397407 A CN109397407 A CN 109397407A
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- Prior art keywords
- processing
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- plate
- plywood
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/06—Manufacture of central layers; Form of central layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
- B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention discloses a kind of manufacturing method of multi-plywood, including core plate screening, drying and processing, bevel grinding are handled, are docked, repair middle plate, gluing typesetting, cold pressing treatment, cut core processing, first time hot-pressing processing, saw flash, scrape ash processing, first time sanding processing for the first time, scraping grey processing, second of sanding processing, secondary sorting, Overlaying process, second of hot-pressing processing and third time sanding for the second time and handle.Using glued board made from this method, not only plate face is smooth, sound construction, but also burst size of methanal is lower, well below domestic standard, and meets U.S. EPA standard.
Description
Technical field
The present invention relates to plywood production technology technical field, in particular to a kind of manufacturing method of multi-plywood.
Background technique
Glued board is one of furniture common used material, belongs to one of three big wood-based plates, for aircraft, ship, train, automobile,
Building and material the effects of packing case.Glued board is veneer or flitch slicing to be peeled by juggle into veneer, then use adhesive glue
The board-like material of three layers or multilayer made of conjunction, generallys use odd-level veneer, and keep the machine direction of adjacent layer veneer mutual
Vertical gluing forms.
In recent years, in the continuous improvement that consumer requires indoor air quality, especially house decorative material
The pernicious gases such as release formaldehyde, toluene generate huge harm to the health of human body.To find out its cause, a large amount of Form aldehyde release is all
From the glue of plate bonding.
Existing solution is that plate is bonded using formaldehyde-free glue, and then to reduce the Form aldehyde release in plate use
Amount.However, the aqueous solution of formaldehyde is referred to as formalin, it is a kind of efficient disinfection sanitizer, can also be used as preservative effect,
If will lead to the reduction of plank burst size of methanal without formaldehyde, so that the phenomenon that pests such as moth, termite moth erosion plate, is frequent
Occur.
In addition, the plate body stability of existing glued board is poor, it is relatively easy to be broken at splicing seams.
Therefore, it is eager to find a kind of new method, it is more firm makes plate construction, and burst size of methanal is lower, is not only below
Domestic standard can also meet U.S. EPA standard.
Summary of the invention
The purpose of the present invention is: propose a kind of manufacturing method of multi-plywood, laminated structure obtained is more steady
Gu and burst size of methanal is lower.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of manufacturing method of multi-plywood, comprising:
Step S1: core plate pretreatment；According to the color difference of core plate plate face, agglomeration and flatness, it is divided into the first order to bad by good
Core plate, second level core plate and third level core plate；Secondly, carrying out drying and processing to the core plate；Finally, the splicing to the core plate
Face carries out bevel grinding processing, makes Mosaic face in inclined-plane；
Step S2: core plate splicing；According to the preset size and shape of glued board, by the Mosaic face split of the core plate of same level one
It rises, is then fixed with adhesive tape, and repair except flash extra on Mosaic face, finally obtain first order plate face, second level plate face and the
Three-level plate face；
Step S3: typesetting is glued；First order plate face is set as the first laminate and layer 5 plate, second level plate face is set as
Third level plate face is set as third laminate by two laminates and the 4th laminate；Cemented surface for each laminate applies glue, and pressing board layer
Sequence fits together the alignment of five laminate materials；It finally carries out being pressed together for the first time；
Step S4: plate face finishing: carrying out deburring processing to the glued board after being pressed together, and keeps it neat；It is carried out on splicing seams
Grey processing is scraped for the first time, and carries out first time sanding processing；It is scraped grey processing for the second time on splicing seams, and is carried out second
Sanding processing；
Step S5: Overlaying process: screening out underproof glued board, selects good glued board, and stick to the two sides of glued board
Thick china；Then thick china is pressed together for the second time, finally carries out carrying out third time sanding processing.
Further, the drying temperature of drying and processing described in step S1 is set as 120 DEG C, and drying time period is set as 20 points
Clock.
Further, horizontal by 45 ° of angles after Mosaic face bevel grinding described in step S1.
Further, it is pressed together and includes the following steps: for the first time described in step S3
S31, cold pressing treatment: pressure is set as 6 megapascal, and pressure duration is set as 6 hours；
S32, it cuts core processing: after cold pressing treatment, repairing except the extra corner at plate surface layer and bottom splicing seams；
S33, first time hot-pressing processing: pressure is set as 9 ~ 10 megapascal, and pressure temperature is set as 125 DEG C, and pressure duration is set as
20 minutes, and maximum pressure pressure maintaining 10 minutes.
Further, described to be pressed together for the second time as second of hot-pressing processing, and pressure is set as 10 megapascal, press temperature
It is 125 DEG C, when pressurization is 20 minutes a length of, and when pressure maintaining is 30 minutes a length of.
Further, the processing of third time sanding described in step S5 uses facing sand.
Further, glue described in step S3 is blent and is formed by urine aldehyde glue and flour ratio 1:0.5 by weight, and every
The resin added of laminate material is 1.1 kilograms.
Further, ash processing is scraped described in step S4 for the first time and scrape ash processing use for the second time is all that atomic glue carries out
Blade coating processing.
The beneficial effects of the present invention are: this method has carried out drying and processing in the preprocessing process to core plate, thus greatly
The moisture content in core plate is reduced greatly, and then greatly reduces the burst size of methanal in plate, using gluing made from this method
Plate burst size of methanal is lower, well below domestic standard, and meets U.S. EPA standard.In addition, glued board plate made from this method
Face is more smooth, and plate body structure is stronger.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Below in conjunction with attached drawing.The present invention will be further described.
The present embodiment is described in detail the process step of the invention by taking 5 layers of glued board as an example.
Firstly, glued board size and shape as needed, make various sizes of core plate in advance.Subsequently into of the invention
Process flow, as shown in Figure 1:
According to the color difference of core plate plate face, agglomeration and flatness, core plate screening is carried out, and it is divided into first order core to bad by good
Plate, second level core plate and third level core plate.
Secondly, carrying out drying and processing to core plate, drying temperature is set as 120 DEG C, and drying time period is set as 20 minutes.
Secondly, the Mosaic face to core plate carries out bevel grinding processing, make Mosaic face in inclined-plane, and horizontal by 45 ° of angles.
Secondly, being stitched and fastened the Mosaic face of the core plate of same level according to the preset size and shape of glued board, two tiltedly
In face of being connected together, then fixed with adhesive tape.
Secondly, repairing except flash extra on Mosaic face, first order plate face, second level plate face and third step are finally obtained
Face.
Secondly, first order plate face is set as the first laminate and layer 5 plate, second level plate face is set as the second laminate
With the 4th laminate, third level plate face is set as third laminate；Cemented surface for each laminate applies glue, and pressing board layer sequence will
The alignment of five laminate materials fits together；Wherein, glue be blent by weight example 1:0.5 by urine aldehyde gluing flour and formed, and
The resin added of every laminate material is 1.1 kilograms.
Secondly, carrying out cold pressing treatment to the plate after gluing, and pressure is set as 6 megapascal, it is small that pressure duration is set as 6
When.
Secondly, carrying out cutting core processing to plate after cold pressing treatment, repair except the extra side at plate surface layer and bottom splicing seams
Angle.
Secondly, after cutting core processing, then carrying out first time hot-pressing processing: pressure is set as 9 ~ 10 megapascal, pressure temperature setting
It is 125 DEG C, pressure duration is set as 20 minutes, and maximum pressure pressure maintaining 10 minutes.
Secondly, carrying out deburring processing to the glued board after being pressed together, keep it neat.
Secondly, to carrying out scraping grey processing for the first time on the splicing seams of plate face, then carry out first time sanding processing；Carry out second
It is secondary to scrape grey processing；Carry out second of sanding processing；Sanding twice can make plate face more smooth.Wherein, grey processing is scraped for the first time
Scrape ash processing use for the second time is all that atomic glue carries out blade coating processing.
Secondly, carrying out postsearch screening, underproof glued board is screened out, good glued board is selected.
Secondly, carrying out Overlaying process to preferred glued board, thick china is sticked on its two sides.
Secondly, carrying out second of hot-pressing processing to thick china, and pressure is set as 10 megapascal, pressure temperature is 125 DEG C, is added
A length of 20 minutes when pressure, when pressure maintaining, is 30 minutes a length of.
Finally, carrying out carrying out third time sanding processing, and this uses facing sand.
To joined drying and processing in the preprocessing process of core plate in technique of the invention, thus make the moisture content of core plate by
30% or so is reduced to 14% ~ 15%.Finally, the glued board burst size of methanal as made from this method only has 0.05ppm, much low
In domestic standard, meet U.S. EPA standard.
In addition, carried out bevel grinding processing to Mosaic face in the present invention, to keep Mosaic face more smooth, after bonding each layer it
Between gap it is more uniform, and then keep the structure of glued board more firm.
The advantages of basic principles and main features and this programme of this programme have been shown and described above.The technology of the industry
Personnel are it should be appreciated that this programme is not restricted to the described embodiments, and the above embodiments and description only describe this
The principle of scheme, under the premise of not departing from this programme spirit and scope, this programme be will also have various changes and improvements, these changes
Change and improvement is both fallen within the scope of claimed this programme.This programme be claimed range by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of manufacturing method of multi-plywood, which comprises the steps of:
Step S1: core plate pretreatment；According to the color difference of core plate plate face, agglomeration and flatness, it is divided into the first order to bad by good
Core plate, second level core plate and third level core plate；Secondly, carrying out drying and processing to the core plate；Finally, the splicing to the core plate
Face carries out bevel grinding processing, makes Mosaic face in inclined-plane；
Step S2: core plate splicing；According to the preset size and shape of glued board, by the Mosaic face split of the core plate of same level one
It rises, is then fixed with adhesive tape, and repair except flash extra on Mosaic face, finally obtain first order plate face, second level plate face and the
Three-level plate face；
Step S3: typesetting is glued；First order plate face is set as the first laminate and layer 5 plate, second level plate face is set as
Third level plate face is set as third laminate by two laminates and the 4th laminate；Cemented surface for each laminate applies glue, and pressing board layer
Sequence fits together the alignment of five laminate materials；It finally carries out being pressed together for the first time；
Step S4: plate face finishing: carrying out deburring processing to the glued board after being pressed together, and keeps it neat；It is carried out on splicing seams
Grey processing is scraped for the first time, and carries out first time sanding processing；It is scraped grey processing for the second time on splicing seams, and is carried out second
Sanding processing；
Step S5: Overlaying process: screening out underproof glued board, selects good glued board, and stick to the two sides of glued board
Thick china；Then thick china is pressed together for the second time, finally carries out carrying out third time sanding processing.
2. a kind of manufacturing method of multi-plywood as described in claim 1, which is characterized in that at drying described in step S1
The drying temperature of reason is set as 120 DEG C, and drying time period is set as 20 minutes.
3. a kind of manufacturing method of multi-plywood as described in claim 1, which is characterized in that Mosaic face described in step S1
Horizontal by 45 ° of angles after bevel grinding.
4. a kind of manufacturing method of multi-plywood as described in claim 1, which is characterized in that described in step S3 for the first time
It is pressed together and includes the following steps:
S31, cold pressing treatment: pressure is set as 6 megapascal, and pressure duration is set as 6 hours；
S32, it cuts core processing: after cold pressing treatment, repairing except the extra corner at plate surface layer and bottom splicing seams；
S33, first time hot-pressing processing: pressure is set as 9 ~ 10 megapascal, and pressure temperature is set as 125 DEG C, and pressure duration is set as
20 minutes, and maximum pressure pressure maintaining 10 minutes.
5. a kind of manufacturing method of multi-plywood as described in claim 1, which is characterized in that described to be pressed together for the second time
For second of hot-pressing processing, and pressure is set as 10 megapascal, and pressure temperature is 125 DEG C, 20 minutes a length of, pressure maintaining duration when pressurization
It is 30 minutes.
6. a kind of manufacturing method of multi-plywood as described in claim 1, which is characterized in that third time described in step S5
Sanding processing uses facing sand.
7. a kind of manufacturing method of multi-plywood as described in claim 1, which is characterized in that glue described in step S3 is
It is blent and is formed by urine aldehyde glue and flour ratio 1:0.5 by weight, and the resin added of every laminate material is 1.1 kilograms.
8. a kind of manufacturing method of multi-plywood as described in claim 1, which is characterized in that described in step S4 for the first time
It scrapes ash processing and scrape ash processing use for the second time is all that atomic glue carries out blade coating processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235957.9A CN109397407A (en) | 2018-10-23 | 2018-10-23 | A kind of manufacturing method of multi-plywood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811235957.9A CN109397407A (en) | 2018-10-23 | 2018-10-23 | A kind of manufacturing method of multi-plywood |
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| Publication Number | Publication Date |
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| CN109397407A true CN109397407A (en) | 2019-03-01 |
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| CN201811235957.9A Pending CN109397407A (en) | 2018-10-23 | 2018-10-23 | A kind of manufacturing method of multi-plywood |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386218A (en) * | 2021-06-18 | 2021-09-14 | 浙江喜盈门家居科技股份有限公司 | Preparation method of environment-friendly solid wood board |
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| CN113386218A (en) * | 2021-06-18 | 2021-09-14 | 浙江喜盈门家居科技股份有限公司 | Preparation method of environment-friendly solid wood board |
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