CN104908112A - Laminated board preparation method, and laminated board - Google Patents
Laminated board preparation method, and laminated board Download PDFInfo
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- CN104908112A CN104908112A CN201410328166.6A CN201410328166A CN104908112A CN 104908112 A CN104908112 A CN 104908112A CN 201410328166 A CN201410328166 A CN 201410328166A CN 104908112 A CN104908112 A CN 104908112A
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- Prior art keywords
- veneer
- laminate
- preparation
- lamination
- disc
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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
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Forests & Forestry (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Abstract
The invention aims to provide a laminated board preparation method which can produce a laminated board with excellent quality and low cost, and a laminated board. The method comprises: a laminating process of staggering a plurality of veneers (4) along a production line L and performing lamination, and jointing the plurality of veneers (4) along a production line L to form a continuous laminated body (5); a cold compression process of successively performing cold compression on the continuous laminated body (5); a trimming process of trimming the cold compression continuous laminated body (5) into any length, and a hot-pressing process of performing hot-pressing on the laminated body (5) trimmed in the trimming process. An operation bench (23) performing lamination is provided with a position determining device used for determining positions of running direction front end portions (4a) of the veneers (4); in the lamination process, the running direction front end portions (4a) of the laminated veneers (4) are determined through the position determining device, and the continuous laminated body (5) is formed.
Description
Technical field
The present invention relates to a kind of method and the laminate of preparing laminate by production line.
Background technology
The known method (such as with reference to patent document 1) laminate being prepared by the superposition of multi-disc veneer.
The technology recorded in patent document 1, by the branch end of a slice veneer taking white poplar as log is overlapped with the radicle of another sheet veneer, make the timber inner face of the timber inner face of a slice veneer and another sheet veneer superimposed simultaneously, and the mode lamination multi-disc veneer overlapped with the wood surface of another sheet veneer again by the wood surface of this another sheet veneer, prevents the tilting of veneer or bending.
Prior art document
[patent document]
[patent document 1] JP 2002-018807 publication
Summary of the invention
In addition, when preparing laminate, particularly factory in overseas, often carries out the superposition operation between veneer with handwork.That is, the veneer being coated with binding agent is carried to operating desk by operating personnel, to superpose the mode not producing skew between veneer, is confirmed by the range estimation of operating personnel.Further, by laminate is prepared in the various forcing press compacting of the layered product superposed like this.
But owing to being confirmed by operating personnel's range estimation when superposing veneer, large multiple edge is uneven, and the quality of prepared laminate becomes problem.In addition, when the edge between veneer becomes uneven, owing to producing more waste material during trimming and finishing, in cost, also problem is become.
The object of the present invention is to provide a kind of best in quality, the preparation method of laminate and laminate that can realize the reduction of cost when preparing.
Invention according to claim 1, such as shown in Fig. 1-Figure 10, this invention is the method preparing laminate 1 by production line L, described laminate 1 by by multi-disc veneer 4 with same machine direction or superpose with the direction that the veneer 4 of a part and the fiber of other veneer 4 are vertical and bondingly to form, it is characterized in that, the method comprises:
The direct of travel of described multi-disc veneer 4 along described production line L is staggered and carries out lamination, and makes to engage along the direct of travel of described production line L the lamination operation forming continuous print layered product 5 between described multi-disc veneer 4,
By the cold pressing process that described continuous print layered product 5 is colded pressing successively along the direct of travel of described production line L,
What the described continuous print layered product 5 of colding pressing in described cold pressing process is cut into arbitrary length cuts operation, and,
By the described hot pressing process cutting layered product 5 hot pressing cut in operation;
Described lamination operation is carried out at operating desk 23, the position determining means that the position this operating desk 23 being provided with the direct of travel leading section 4a carrying out described multi-disc veneer 4 is determined,
In described lamination operation, carry out position by the direct of travel leading section 4a of described position determining means to each veneer 4 of institute's lamination and determine, and form described continuous print layered product 5.
Invention according to claim 1, in lamination operation, due to the direct of travel of multi-disc veneer 4 along production line L is staggered and carry out lamination, and make to engage along the direct of travel of production line L between multi-disc veneer 4 to form continuous print layered product 5, therefore, it is possible to endless ground continuous production layered product 5.And then, the direct of travel leading section 4a of each veneer 4 of lamination in lamination operation is carried out position by position determining means determine, and form continuous print layered product 5, therefore, compared with the conventional art of being undertaken by the range estimation of operating personnel (operating personnel S2) when superposing veneer 4 confirming, can lamination multi-disc veneer 4 exactly.
Thus, owing to being difficult to produce unnecessary skew when lamination multi-disc veneer 4, the quality of prepared laminate 1 is made to become excellent.And then, owing to being difficult to produce waste material, the reduction of cost when can realize preparing.
Invention according to claim 2, such as shown in Figure 7, it is characterized in that, in the preparation method of laminate 1 according to claim 1, described position determining means is the fixator 23a formed with moving freely on the direct of travel of described production line L and rightabout and above-below direction thereof.
Invention according to claim 2, because position determining means is the fixator 23a formed with moving freely on the direct of travel of described production line L and rightabout and above-below direction thereof, therefore suitably move this fixator 23a, in lamination operation, position can be carried out to the direct of travel leading section 4a of each veneer 4 of institute's lamination exactly and determine.
Invention according to claim 3, such as shown in Figure 7, it is characterized in that, in the preparation method of the laminate 1 described in claim 1 or 2, in described lamination operation, the size that staggers when being staggered along the direct of travel of described production line L and carry out lamination by described multi-disc veneer 4 is set as the 25-35 of the thickness of described veneer 4 doubly.
Invention according to claim 3, when the size that staggers being set as 25 times of the thickness of not enough veneer 4, because the exposed area (so-called paste smear zone) of binding agent becomes narrow and small, make the adhesive strength between multi-disc veneer 4 when engaging along the direct of travel of production line L more weak.In addition, when the size that staggers being set as the value larger than 35 times of thickness of veneer 4, the exposed area due to binding agent becomes large, makes the adhesive strength between multi-disc veneer 4 when engaging along the direct of travel of production line L be more than necessary intensity.
Therefore, the size that staggers when being staggered along the direct of travel of production line L and carry out lamination in lamination operation by multi-disc veneer 4 is set as the 25-35 of the thickness of veneer 4 doubly, and the exposed area of binding agent can be made thus to be neither big nor small degree.Thus, when engaging along the direct of travel of production line L between by multi-disc veneer 4, can guarantee and required corresponding adhesive strength, colory laminate 1 can be prepared.
Invention according to claim 4, such as shown in Figure 3, it is characterized in that, in the preparation method of the laminate 1 in claim 1-3 described in any one, when described multi-disc veneer 4 is carried out lamination in described lamination operation, making between the wood surface of adjacent veneer 4,4 or between timber inner face is relative status.
Invention according to claim 4, such as when the outer surface peeling off log scale thinly forms multi-disc veneer 4, veneer 4 bends in its wood surface mode that to be convex, timber inner face be is recessed (or be recessed, timber inner face with wood surface be convex), time in lamination operation by multi-disc veneer 4 lamination, between the wood surface making adjacent veneer 4,4 or be relative status between timber inner face, so the bending direction of adjacent veneer 4 is mutually contrary.Therefore, it is possible to prevent the tilting of veneer 4 or bending.
Invention according to claim 5, such as shown in Figure 2, it is characterized in that, in the preparation method of the laminate 1 described in any one in claim 1-4, described veneer 4 is roughly square by being formed as plan view by linking together between little for the multi-disc being formed as rectangular shape veneer 3a-3f.
Invention according to claim 5, such as when multi-disc veneer 4 is plan view rectangular shape, when making machine direction vertically carry out lamination, the end of the length direction of part veneer is stretched out from the end in the direction vertical with the length direction of other veneer, useless waste material can be produced, but link together between the veneer 4 little veneer 3a-3f by the multi-disc by being formed as rectangular shape and to be formed as plan view roughly square, even if therefore roughly foursquare for plan view multi-disc veneer 4 is superposed in the direction that the veneer 4 of a part is vertical with the fiber of other veneer 4, also be difficult to produce waste material, in order.
Invention according to claim 6, such as shown in Figure 9, it is characterized in that, in the preparation method of the laminate 1 in claim 1-5 described in any one, than by the operation before described multi-disc veneer 4 lamination, make its water content be less than 6% this multi-disc veneer 4 drying in advance, in described hot pressing process, described layered product 5 is compressed 5-15% on the laminating direction of described multi-disc veneer 4.
Invention according to claim 6, due to than by the operation before multi-disc veneer 4 lamination, makes its water content be less than 6% this multi-disc veneer 4 drying in advance, therefore, it is possible to prevent the tilting of veneer 4 or bending, makes to be easy to lamination between veneer 4.In addition, due in hot pressing process, layered product 5 is compressed 5-15% on the laminating direction of multi-disc veneer 4, the density of laminate 1 can be improved, improve its intensity.
Thus, owing to multi-disc veneer 4 can be carried out lamination to tilt or to bend less state, and the mode that can improve with density be suppressed, therefore, it is possible to prepare colory laminate 1.
Invention according to claim 7, is a kind of laminate 1, such as shown in Figure 9, it is characterized in that, this laminate is obtained by preparation method's preparation of the laminate 1 in claim 1-6 described in any one.
Invention according to claim 7, the laminate 1 prepared by the preparation method of laminate 1 is best in quality, and the cost that can realize when preparing reduces.
According to the present invention, can prepare colory laminate, the cost that simultaneously can realize preparing reduces.
Accompanying drawing explanation
Fig. 1 illustrates the figure preparing the production line of laminate.
The stereogram that (a) in Fig. 2 is raw sheet, (b) in Fig. 2 is for being formed as the stereogram of the little veneer on inclined-plane at both ends, the stereogram that (c) in Fig. 2 is veneer, the stereogram that (d) in Fig. 2 is layered product.
Fig. 3 is the figure be described as raw sheet the timber peeled off using peeler.
Fig. 4 is the figure to being described with oblique surface machining machined raw sheet, and the four-headed arrow in figure represents machine direction.
Fig. 5 is that the four-headed arrow in figure represents machine direction to the multi-disc veneer figure that overlaying state is described in same machine direction.
Fig. 6 is the figure to being described with coating machine applied adhesive inside and outside veneer.
Fig. 7 is the figure that lamination operation is described.
Fig. 8 is the figure that cold pressing process is described.
Fig. 9 is the figure that hot pressing process is described.
Figure 10 is the figure be described the variation of the production line preparing laminate.
Description of reference numerals
L production line
1 laminate
2 raw sheets
The little veneer of 3a-3f
4 veneers
5 layered products
21b binding agent
23 operating desks
23a fixator
The horizontal fixator of 23b
23c conveyer belt
24 cold presses
25 transverse cutting units
28 hot presses
Detailed description of the invention
Below, be described in detail to for implementing the preferred embodiment of the present invention with reference to accompanying drawing.
As shown in Fig. 2,9, laminate 1 by multi-disc veneer 4 is superposed and utilize the binding agent of phenolic resins system bonding and formed layered product 5 compress 5%-15% to be formed on the Direction of superposition of veneer 4.In addition, multi-disc veneer 4 superposes in the direction that the veneer 4 of same machine direction or a part is vertical with the fiber of other veneer 4 and bonding.
In addition, laminate 1 is prepared by the production line L shown in Fig. 1.
As shown in Figure 2, the multi-disc veneer 4 forming layered product 5 is made up of the little veneer 3a-3f of the rectangular shape less than this veneer 4 wide cut respectively.Particularly, will dock between little veneer 3a and the end face parallel with its machine direction of little veneer 3d and pass through the connections such as the immobilization material such as paper self-adhesive tape, adhesive plaster or hot-melt adhesive.In addition, as shown in Figure 2, little veneer 3b is connected with little veneer 3e, little veneer 3c is connected with little veneer 3f, also can form same veneer 4.Such veneer 4 is roughly square by being formed as plan view by linking together between the little veneer 3a-3f being formed as rectangular shape.
In addition, little veneer 3a-3f for carrying out cutting the raw sheet 2 obtained as the white poplar of log scale the plate that machining obtains, the wood surface 3g making 6 of each veneer of the formation as shown in Fig. 2 (c) 4 little veneer 3a-3f all towards same direction (above or below).
In addition, as shown in Fig. 2 (d), when by veneer about 4 lamination, to make between the wood surface 3g of adjacent veneer 4,4 or between timber inner face 3h to become the mode lamination of relative status.
Then, the multi-disc veneer 4 formed by little veneer 3a-3f staggers along the direct of travel of production line L and carries out lamination, and makes to engage along the direct of travel of production line L between multi-disc veneer 4, forms continuous print layered product 5.
Now, be that unidirectional mode combines by miter joint with machine direction between adjacent on the direct of travel of production line L veneer 4.
Then, the preparation method of the laminate 1 of formation such is above described.
First, as shown in Fig. 2 (a), Fig. 3, form raw sheet 2.That is, raw sheet 2 is by using peeler (thinly the machinery of rotary-cut timber) using the white poplar rotary-cut thinly as log scale, a part for the banded timber of rotary-cut thinly cutting is formed.In addition, its thickness is set as about 1-5mm.
Then, such raw sheet 2 is moved to factory.In addition, raw sheet 2 with the face of the bark side of log scale for wood surface 3g, with the face of side, pith for timber inner face 3h.
Then, raw sheet 2 is dry with drying machine, make the water content of raw sheet 2 be less than 6%.This drying machine, such as multiple metallic plate is set to stratiform, is placed multi-disc raw sheet 2 and is carried out dry device between multiple metallic plates of heating.In addition, also drying can be carried out by the mode of drying.
In addition, as shown in Fig. 2 (b), formed the inclined-plane 3i of miter joint by oblique surface machining machine 10 at the both ends of the machine direction of raw sheet 2.Oblique surface machining machine 10, such as shown in Figure 4, possesses the sand paper 10a of ring-type, for carrying out the machine of oblique surface machining to the end of the raw sheet 2 being arranged on operating desk 11.In addition, as other oblique surface machining method, also can adopt and such as utilize cutter to carry out the method for processing.
In addition, inclined-plane 3i is preferably such as 15-25mm in the length of incline direction.
In addition, as mentioned above, due to the neighbouring veneer 4,4 connect wood surface 3g between or carry out lamination with relative status between timber inner face 3h, therefore, when carrying out oblique surface machining, with wood surface 3g state upward and timber inner face 3h state upward two kinds of modes, oblique surface machining is carried out to raw sheet 2.Therefore, one in the inclined-plane 3i that the both ends that there is the machine direction of raw sheet 2 are formed towards wood surface 3g side, another mode towards timber inner face 3h side, and in inclined-plane 3i one towards timber inner face 3h side, another mode towards wood surface 3g side.
Then, carry out determining dimensioned.Raw sheet 2 is cut and prepares little veneer 3d-3f.In addition, as little veneer 3a-3c, raw sheet 2 can not be cut and directly use raw sheet 2.Be described for the situation of little veneer 3a, 3d, with these little link together between veneer 3a, 3d time size be formed as the mode of given size, the end of machine direction suitably to be cut, but not by the end of oblique surface machining side.That is, staying by under the state of oblique surface machining side, and result is can form the mode of plan view roughly square shape, cuts little veneer 3a, 3d.
Little veneer 3b and little veneer 3e, little veneer 3c and little veneer 3f process similarly.
Then, veneer setting table 20 as shown in Figure 1 carries out single board repair.Little veneer 3a and little veneer 3d is connected with the immobilization material of paper self-adhesive tape etc. to make the mode of docking between their end face parallel with machine direction.Now, make the wood surface of little veneer 3a and little veneer 3d towards same direction.Confirmation corner is right angle, makes its wide cut be given size simultaneously.Similarly, little veneer 3b is connected with little veneer 3f with little veneer 3e, little veneer 3c.
Further, when crackle, be full of cracks appear in little veneer 3a-3f, with immobilization materials such as paper self-adhesive tapes, crackle or be full of cracks are connected in advance.
In addition, in the present embodiment, form the veneer 4 of plan view roughly square shape by linking together between the little veneer 3a-3f of rectangular shape, but when obtaining the raw sheet 2 of size corresponding to the given size of veneer 4, directly can use this raw sheet 2.
In addition, in above-mentioned, in same machine direction, (with reference to Fig. 5) is superposed or to be illustrated premised on same machine direction is adjacent by multi-disc veneer 4, but when being superposed with the direction that the veneer 4 of a part is vertical with the fiber of other veneer 4 by multi-disc veneer 4, suitably can change the direction of oblique surface machining.
Then, the veneer 4 terminating single board repair is set on ensuing coating machine 21 by operating personnel S1.
Then, coating machine 21 applied adhesive 21b (painting process) on veneer 4 is utilized.
That is, in the multi-disc veneer 4 of lamination, except the veneer 4 being positioned at the top, at the coated thereon binding agent 21b of multi-disc veneer 4.Coating machine 21, as shown in Figure 6, possess multiple roller 21a, the roller 21a of top is formed as the structure of oozing out binding agent 21b in its surface.Further, by can at applied adhesive 21b equably above by veneer 4 between multiple roller 21a.
In addition, although the binding agent 21b of phenolic resins system is coated on above multi-disc veneer 4, can inside and outside each veneer 4 two sided coatings or from the veneer 4 forming layered product 5 below (or above start) be coated on the two sides of veneer 4 of even number sheet.
In addition, the kind of binding agent 21b, is the binding agent of phenolic resins system in the present embodiment, but is not limited thereto, can suitably change.
Operating personnel S2 receives the veneer 4 being coated with binding agent 21b in veneer receiving station 22, and is transported to next operating desk 23.
Then, by multi-disc veneer 4 lamination (lamination operation).
That is, as shown in Figure 7, the direct of travel of multi-disc veneer 4 along production line L staggered and carry out lamination, and making to engage along the direct of travel of production line L between multi-disc veneer 4 to form continuous print layered product 5.
The operating desk 23 carrying out lamination operation possesses fixator 23a, horizontal fixator 23b and conveyer belt 23c.
As shown in Fig. 7 (a), fixator 23a is the position determining means that the position of the direct of travel leading section 4a carrying out multi-disc veneer 4 is determined, the direct of travel of production line L and rightabout and above-below direction thereof are formed with moving freely.Particularly, this fixator 23a is vertical with the direct of travel of production line L and horizontally disposed cross section be quadrangle or cross section is the bar-like member of square tube type, and for making the mobile device (not shown) of this fixator 23a movement become to be set on production line L.In addition, the movement of this fixator 23a is controlled by computer, can move to the position of setting arbitrarily exactly.
Horizontal fixator 23b is the position determining means of the sidewall shape of the side end being fixed on operating desk 23, and by making the horizontal fixator 23b of the side end of veneer 4 and this dock, the position can carrying out this veneer 4 is determined.
Conveyer belt 23c while the scope of operation as operating desk 23, for for carrying out at the direct of travel of production line L and rightabout (direction of retreat) thereof the device carrying veneer 4.That is, conveyer belt 23c is formed as the endless conveyor belt of endless, with the not shown complete setting of multiple driven rollers.Further, according to the direction of rotation of driven roller, conveyer belt 23c is formed in the mode that can rotate to the direct of travel of production line L and rightabout thereof.In addition, the work of this conveyer belt 23c (i.e. driven roller) is controlled by computer, the veneer 4 on conveyer belt 23c and layered product 5 can be moved to exactly the position of setting arbitrarily.
Use above such operating desk 23, when forming continuous print layered product 5 by multi-disc veneer 4, as shown in Fig. 7 (a), (b), the direct of travel leading section of initial first veneer 4 is docked with fixator 23a, make side end dock with horizontal fixator 23b simultaneously.Thus, the position of carrying out initial first veneer 4 is determined.
Then, as shown in Fig. 7 (c), make fixator 23a increase, move to the front end of the direct of travel of production line L, decline in the position preset.Then, the direct of travel leading section of second veneer 4 is docked with fixator 23a, side end is docked with horizontal fixator 23b simultaneously, and be superimposed upon on first veneer 4.Owing to outside being coated with binding agent 21b in second veneer 4, by binding agent 21b, the first veneer 4 of superposition and second veneer 4 can be engaged.
3rd later veneer 4 staggers at the direct of travel of production line L similarly and carries out lamination.
After the veneer 4 of the sheet number of lamination necessity, as shown in Fig. 7 (d), fixator 23a is made to increase, and move to the direction contrary with the direct of travel of production line L, the position of gathering in the side (face of coating machine 21 side) of fixator 23a and the upper end of the inclined-plane 3i of described initial first veneer 4 declines.Then, the direct of travel leading section of the veneer 4 making this follow-up is docked with the rearward end of preceding veneer 4, makes its side end dock with horizontal fixator 23b and be arranged on operating desk 23 simultaneously.
Then, the position making fixator 23a gather in its side (one side of coating machine 21 side) and the upper end of the inclined-plane 3i of preceding described second veneer 4 declines.Then, the direct of travel leading section of follow-up veneer 4 is docked with the rearward end of preceding veneer 4, make side end dock with horizontal fixator 23b simultaneously, superpose in the mode of the veneer 4,4 continuous in the front and back across below.
Afterwards, repeatedly carry out such operation, prepare continuous print layered product 5 endlessly.Then, the conveyer belt 23c that the output of continuous print layered product 5 is taken by this layered product 5 carries out.
In addition, in the present embodiment, the direct of travel of production line L and rightabout and above-below direction thereof form the position determining means that fixator 23a is used as veneer 4 and layered product 5 with moving freely and uses, but be not limited thereto.That is, such as make fixator 23a be formed as only moving freely in the vertical direction, meanwhile, use can on the direct of travel of production line L and rightabout thereof the conveyer belt 23c of mobile veneer 4 and layered product 5, thus as position determining means.
In addition, during lamination multi-disc veneer 4, as mentioned above, making between the wood surface 3g of adjacent veneer 4,4 or between timber inner face 3h is relative status.
And then, in lamination operation, the stagger size (l:L) of multi-disc veneer 4 when the direct of travel of production line L staggers and carries out lamination is set as the 25-35 of the thickness (d) of veneer 4 doubly (that is, l=25d-35d).
Then, as shown in Figure 8, by cold press 24, continuous print layered product 5 is colded pressing (cold pressing process) successively along the direct of travel of production line L.
Illustrate in greater detail, at normal temperatures, layered product 5 is placed on and adds after on the 24a that presents a theatrical performance as the last item on a programme, by pressurization disk 24b, layered product 5 is reduced pressure after the laminating direction pressurization certain hour of veneer 4, then reduce pressure after the certain hour that pressurizes.
Then, by the transverse cutting unit 25 shown in Fig. 1, the continuous print layered product 5 of colding pressing in cold pressing process is cut into arbitrary length (cutting operation).
Transverse cutting unit 25 possesses the rotating knife worked on the direction vertical with the length direction of continuous print layered product 5, the layered product 5 suppressed to a certain degree can be cut exactly in cold pressing process.In addition, the work of this transverse cutting unit 25 is controlled by computer, can cut layered product 5 exactly in the position of setting arbitrarily.
The layered product 5 of the arbitrary length cut is raised to top by lift 26, is transported to hot press 28 by conveyer 27.
Then, as shown in Figure 9, hot pressing (hot pressing process) is carried out by hot press 28 pairs of layered products 5.
Hot press 28 has multi-disc metallic plate 28c adding to present a theatrical performance as the last item on a programme between 28a and pressurization disk 28b, between these metallic plates 28c after difference holding sheet laminate 5, by the metallic plate 28c heated by thermal source (steam, oil temperature, electrically, high frequency etc.), layered product 5 being heated to set point of temperature, by adding the 28a and pressurization disk 28b that presents a theatrical performance as the last item on a programme, layered product 5 being suppressed with the stipulated time determined by each product (40-120 minute) on the Direction of superposition of veneer 4.
In addition, the heating-up temperature of layered product 5 is preferably 130-140 DEG C.In addition, the compression ratio of the layered product 5 in hot pressing process is set as being 5-15% on the laminating direction of veneer 4.
After hot pressing process terminates, such as, be transported to other place by conveyer 27, be saved to temperature and lower.
Laminate 1 can be prepared by preparation method such above.
In addition, in the above embodiment, the machine direction that laminate 1 is formed as veneer 4 is unidirectional LVL ply pressing plate, but is not limited thereto, and also can form the orthogonal glued board of machine direction of adjacent veneer 4.
According to the present embodiment, in lamination operation, due to the direct of travel of multi-disc veneer 4 along production line L is staggered and carry out lamination, and make to engage along the direct of travel of production line L between multi-disc veneer 4 to form continuous print layered product 5, therefore, it is possible to endless ground continuous production layered product 5.And then, the direct of travel leading section 4a of each veneer 4 of lamination in lamination operation is carried out position by position determining means determine, and form continuous print layered product 5, therefore, compared with the conventional art of being undertaken by the range estimation of operating personnel when superposing veneer 4 confirming, can lamination multi-disc veneer 4 exactly.
Thus, owing to being difficult to produce unnecessary skew when lamination multi-disc veneer 4, the quality of prepared laminate 1 is made to become excellent.And then, owing to being difficult to produce waste material except trimming except the direct of travel leading section 4a of the multi-disc veneer 4 by initial lamination, therefore, it is possible to the reduction of cost when realizing preparation.
In addition, because position determining means is the fixator 23a formed with moving freely on the direct of travel of described production line L and rightabout and above-below direction thereof, therefore suitably move this fixator 23a, in lamination operation, position can be carried out to the direct of travel leading section 4a of each veneer 4 of institute's lamination exactly and determine.
In addition, when the size that staggers being set as 25 times of the thickness of not enough veneer 4, because the exposed area (so-called paste smear zone) of binding agent becomes narrow and small, make the adhesive strength between multi-disc veneer 4 when engaging along the direct of travel of production line L more weak.In addition, when the size that staggers being set as the value larger than 35 times of thickness of veneer 4, the exposed area due to binding agent becomes large, makes the adhesive strength between multi-disc veneer 4 when engaging along the direct of travel of production line L be more than necessary intensity.
Therefore, the size that staggers when being staggered along the direct of travel of production line L and carry out lamination in lamination operation by multi-disc veneer 4 is set as the 25-35 of the thickness of veneer 4 doubly, and the exposed area of binding agent can be made thus to be neither big nor small degree.Thus, when engaging along the direct of travel of production line L between by multi-disc veneer 4, can guarantee and required corresponding adhesive strength, colory laminate 1 can be prepared.
In addition, such as when the outer surface peeling off log scale thinly forms multi-disc veneer 4, veneer 4 bends in its wood surface mode that to be convex, timber inner face be is recessed (or be recessed, timber inner face with wood surface be convex), time in multi-disc lamination operation by veneer 4 lamination, between the wood surface making adjacent veneer 4,4 or be relative status between timber inner face, so the bending direction of adjacent veneer 4 is mutually contrary.Therefore, it is possible to prevent the tilting of veneer 4 or bending.
In addition, such as when multi-disc veneer 4 is plan view rectangular shape, when making machine direction vertically carry out lamination, the end of the length direction of part veneer is stretched out from the end in the direction vertical with the length direction of other veneer, useless waste material can be produced, but link together between the veneer 4 little veneer 3a-3f by the multi-disc by being formed as rectangular shape and to be formed as plan view roughly square, even if therefore roughly foursquare for plan view multi-disc veneer 4 is superposed in the direction that the veneer 4 of a part is vertical with the fiber of other veneer 4, also be difficult to produce waste material, in order.
In addition, due to than by the operation before multi-disc veneer 4 lamination, make its water content be less than 6% this multi-disc veneer 4 drying in advance, therefore, it is possible to prevent the tilting of veneer 4 or bending, make to be easy to lamination between veneer 4.In addition, due in hot pressing process, layered product 5 is compressed 5-15% on the laminating direction of multi-disc veneer 4, the density of laminate 1 can be improved, improve its intensity.
Thus, owing to multi-disc veneer 4 can be carried out lamination to tilt or to bend less state, and the mode that can improve with density be suppressed, therefore, it is possible to prepare colory laminate 1.
In addition, the laminate 1 that preparation method according to the present embodiment prepares is best in quality, and the cost that can realize when preparing reduces.
[variation]
In addition, applicable embodiments of the present invention are not limited to above-mentioned embodiment, can suitably change without departing from the scope of spirit of the present invention.Below, variation is described.
As shown in Figure 10, coating machine 21 also can be made with synchronous with the fixator 23a of operating desk 23 and formed along the direct of travel of production line L and the mode of rightabout movement thereof.
That is, the multi-disc veneer 4 of lamination needs during each lamination to stagger on direct of travel on operating desk 23.Therefore, coating machine 21 is in idle situation synchronous with fixator 23a, and the displacement that operating personnel carries veneer 4 is transported to operating desk 23 side during from the position of veneer receiving station 22 changes at every turn.
Therefore, as this variation, when coating machine 21 is structure synchronization-moving with fixator 23a, in the operation process that the veneer 4 making the position of veneer receiving station 22 receive docks with the fixator 23a of operating desk 23, the displacement x of operating personnel S2 is generally certain distance.
And, it is a timing by the displacement x of the operating personnel S2 in this operation process, continuous print layered product 5 can be made to export in rapid succession, rhythm certain when can not destroy preparation, therefore operation veneer 4 being carried to fixator 23a is made to become easy, and then the quality of laminate 1 also can not become uneven, and easily keeps constant.
Claims (7)
1. the preparation method of a laminate, this preparation method prepares the method for laminate by production line, described laminate by by multi-disc veneer with same machine direction or superpose with the direction that the veneer of a part and the fiber of other veneer are vertical and bondingly to form, it is characterized in that, this preparation method comprises:
The direct of travel of described multi-disc veneer along described production line is staggered and carries out lamination, and makes to engage along the direct of travel of described production line the lamination operation forming continuous print layered product between described multi-disc veneer,
By the cold pressing process that described continuous print layered product is colded pressing successively along the direct of travel of described production line,
What the described continuous print layered product of colding pressing in described cold pressing process is cut into arbitrary length cuts operation, and,
By the described hot pressing process cutting the layered product hot pressing cut in operation;
Described lamination operation is carried out at operating desk, the position determining means that the position this operating desk being provided with the direct of travel leading section of carrying out described multi-disc veneer is determined,
In described lamination operation, carry out position by the direct of travel leading section of described position determining means to each veneer of institute's lamination and determine, and form described continuous print layered product.
2. the preparation method of laminate according to claim 1, it is characterized in that, in the preparation method of this laminate, described position determining means is the fixator formed with moving freely on the direct of travel of described production line and rightabout and above-below direction thereof.
3. the preparation method of laminate according to claim 1 and 2, it is characterized in that, in the preparation method of this laminate, in described lamination operation, the size that staggers when being staggered along the direct of travel of described production line and carry out lamination by described multi-disc veneer is set as the 25-35 of the thickness of described veneer doubly.
4. according to the preparation method of the laminate in claim 1-3 described in any one, it is characterized in that, in the preparation method of this laminate, when described multi-disc veneer is carried out lamination in described lamination operation, making between the wood surface of adjacent veneer or between timber inner face is relative status.
5. according to the preparation method of the laminate in claim 1-4 described in any one, it is characterized in that, in the preparation method of this laminate, described veneer is roughly square by being formed as plan view by linking together between little for the multi-disc being formed as rectangular shape veneer.
6. according to the preparation method of the laminate in claim 1-5 described in any one, it is characterized in that, in the preparation method of this laminate, than by the operation before described multi-disc veneer lamination, its water content is made to be less than 6% this multi-disc veneer drying in advance, in described hot pressing process, described layered product is compressed 5-15% on the laminating direction of described multi-disc veneer.
7. a laminate, is characterized in that, this laminate is obtained by preparation method's preparation of the laminate in claim 1-6 described in any one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-051498 | 2014-03-14 | ||
| JP2014051498A JP2015174280A (en) | 2014-03-14 | 2014-03-14 | Method for manufacturing laminate material and laminate material |
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| Publication Number | Publication Date |
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| CN104908112A true CN104908112A (en) | 2015-09-16 |
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| CN201410328166.6A Pending CN104908112A (en) | 2014-03-14 | 2014-07-10 | Laminated board preparation method, and laminated board |
| CN201420380723.4U Active CN204354546U (en) | 2014-03-14 | 2014-07-10 | A kind of ply pressing plate |
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| CN201420380723.4U Active CN204354546U (en) | 2014-03-14 | 2014-07-10 | A kind of ply pressing plate |
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Cited By (1)
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| CN115008561A (en) * | 2022-06-30 | 2022-09-06 | 重庆德沃木制品加工有限公司 | Cold pressing and hot pressing connection line system |
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| CA3019340C (en) | 2016-09-30 | 2021-08-03 | Daiken Corporation | Wood laminate material and method for manufacturing same |
| JP2019089215A (en) * | 2017-11-13 | 2019-06-13 | 株式会社ユニウッドコーポレーション | Laminated material product for surface processing and manufacturing method of the same |
| EP3543000A1 (en) * | 2018-03-21 | 2019-09-25 | EMPA Eidgenössische Materialprüfungs- und Forschungsanstalt | Manufacturing method of shaped multi-layer plant-fibre based components |
| CN112622246B (en) * | 2020-12-02 | 2023-02-10 | 翟骏龙 | Leveling method for automobile interior trim leftover material |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2015174280A (en) | 2015-10-05 |
| CN204354546U (en) | 2015-05-27 |
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