CN114714450A - Composite wood board and production process and equipment thereof - Google Patents

Composite wood board and production process and equipment thereof Download PDF

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Publication number
CN114714450A
CN114714450A CN202210497459.1A CN202210497459A CN114714450A CN 114714450 A CN114714450 A CN 114714450A CN 202210497459 A CN202210497459 A CN 202210497459A CN 114714450 A CN114714450 A CN 114714450A
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China
Prior art keywords
layer
batten
wood
veneer
side wall
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Pending
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CN202210497459.1A
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Chinese (zh)
Inventor
李得雄
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Guangdong Dpark Household Technology Co ltd
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Guangdong Dpark Household Technology Co ltd
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Priority to CN202210497459.1A priority Critical patent/CN114714450A/en
Publication of CN114714450A publication Critical patent/CN114714450A/en
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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
    • 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
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
    • 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
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
    • 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
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • 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
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • 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
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacture Of Wood Veneers (AREA)

Abstract

The invention provides a composite wood board and a production process and equipment thereof, relating to the technical field of composite wood boards and comprising a first veneer layer and a second veneer layer; a first middle layer is arranged between the first veneer layer and the second veneer layer and comprises a plurality of first batten strips arranged in the same direction; a second middle layer is arranged between the first middle layer and the second veneer layer and comprises a plurality of second batten strips arranged in the same direction; the first batten and the second batten are perpendicular to each other. The composite wood board has the beneficial effects that compared with the traditional composite wood board, the glue amount can be greatly reduced, the cost is saved, the composite wood board is more environment-friendly, the middle layer comprises a plurality of wood square bars arranged in the same direction, the compression resistance and the bearing effect are high, and the service life is long.

Description

Composite wood board and production process and equipment thereof
Technical Field
The invention relates to the technical field of composite wood boards, in particular to a composite wood board and a production process and production equipment thereof.
Background
The conventional composite wood board has a laminated structure formed by gluing two thin surface boards onto a thicker core layer, the core layer is often formed by stacking multiple thin wood boards, and glue is applied between adjacent thin wood boards for bonding. However, the structure has the defects that a large amount of glue is contained in the composite wood board, the manufacturing cost is high, the composite wood board is not environment-friendly, in addition, the compression resistance of the composite wood board is poor, and the bending deformation phenomenon is easy to occur after the composite wood board is used for a long time. Based on this, there is a need to develop a composite wood board that solves the above technical drawbacks.
Disclosure of Invention
The composite wood board only comprises the first wood skin layer, the first middle layer, the second middle layer and the second wood skin layer, the layer structure is simple, glue amount can be greatly reduced compared with that of the traditional composite wood board, cost is saved, the composite wood board is more environment-friendly, the middle layer comprises a plurality of wood square bars arranged in the same direction, compression resistance and bearing effects are high, and the service life is long.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a composite wood panel comprising a first veneer layer and a second veneer layer;
a first middle layer is arranged between the first veneer layer and the second veneer layer and comprises a plurality of first batten strips arranged in the same direction;
a second middle layer is arranged between the first middle layer and the second veneer layer and comprises a plurality of second batten strips arranged in the same direction;
the first batten and the second batten are perpendicular to each other.
Furthermore, the height of the first batten and the height of the second batten are 0.8-1.2 mm; in the first middle layer, the number of the first batten contained in each meter of length is 620-630 according to the number of the second batten in the length direction; in the second intermediate layer, the number of the second batten contained in each meter of length is 650-660 according to the number of the first batten in the length direction.
Furthermore, glue layers are respectively arranged between the first veneer layer and the first middle layer, between the first middle layer and the second middle layer and between the second middle layer and the second veneer layer.
Furthermore, wear-resistant layers are arranged on the surfaces of the first veneer layer and the second veneer layer, and the thickness of each wear-resistant layer is 0.1-0.3 mm; and a spraying layer is arranged above the wear-resistant layer.
A composite wood board production process comprises the following steps:
(1) peeling the wood to form a log, soaking the log at the temperature of 75-95 ℃ for 11-13 h, then sending the log to a turf workshop, then carrying out finer peeling again, then sending the log to a rotary cutter, cutting the log into sheets with the thickness of 0.3-0.5 mm by the rotary cutter, and conveying the sheets to a cutting machine for cutting and stacking;
(2) feeding the stacked sheets into a dryer, baking at a high temperature of 396-410 ℃ for 4-5 min, inputting the dried sheets into a moisture scanner one by one for detection, and continuously returning and drying unqualified sheets until the target value is reached; then conveying the dried sheet into a presser to press and flatten the sheet; then cutting the sheet into a size of a specification to form a first veneer layer and a second veneer layer for standby;
(3) peeling the skin of the batten, soaking the batten in a wood preservative solution for 65-85 h, sending the batten to a cool workshop for natural air drying for 2-4 days, sending the batten to a numerical control slicing machine, and slicing the batten with the thickness of 0.8-1.2 mm; then sending the batten skins into a cutting machine, cutting the batten skins of the cutting machine by the cutting machine, and stacking;
(4) feeding the stacked batten skins into a dryer, baking for 2-4 min at the high temperature of 411-418 ℃, inputting the dried batten skins into a moisture scanner one by one for detection, and continuously returning and drying unqualified batten skins until the unqualified batten skins reach a target value; then conveying the dried batten leather into a presser to press and flatten the sheet; then cutting the sheet into a size;
(5) stacking the veneer to 1.2-1.8 m, feeding the veneer into a cutting machine, and vertically cutting off the veneer, so as to cut the veneer strips with the width of 1.3-1.8 mm for later use;
(6) coating a glue layer on the second veneer layer, and arranging a plurality of wood square bars above the second veneer layer in the same direction to form a second middle layer; then coating a glue layer on the second middle layer, and arranging a plurality of batten strips above the second middle layer in the same direction to form a first middle layer, wherein the arrangement direction of the batten strips of the second middle layer is vertical to the arrangement direction of the batten strips of the first middle layer; then, coating a glue layer on the upper part of the first middle layer, and placing a first veneer layer on the first middle layer;
(7) putting the plate compounded in the step into hot pressing equipment, and hot pressing at 133-136 ℃ for 20-25 min under the pressure of 0.25-0.55 Mpa;
(8) and taking out the composite board, and cutting the composite board into the proper size according to the specification to obtain the composite board.
A rotary cutter for a composite wood board production process comprises a rack, a servo motor, a positioning piece and a rotary cutting piece, wherein the servo motor is embedded in the right side wall of the rack, the rack is connected with the rotary cutting piece through the servo motor, a rolling piece is installed on the upper side wall of the left part of the rack, the right side wall of the rolling piece is connected with the positioning piece through a hydraulic rod, and a wood body is placed between the rolling piece and the positioning piece;
a roller shaft is inserted into the side wall of the bottom of the bent plate in the rolling part in a penetrating manner, and the bent plate is connected with the roller through the roller shaft;
a connecting sleeve is sleeved on the side wall of one end of a connecting column in the positioning piece, the side wall of the other end of the connecting column is connected with a positioning plate through a connecting rod, and the side wall of the positioning plate is connected with a butt plate through a micro telescopic rod;
a knife rest is clamped on a support plate in the rotary cutting piece, and a rotary cutter is arranged on the knife rest.
Furthermore, side grooves are formed in the central axis of the front side wall and the rear side wall of the rack, sliding grooves are formed in the positions, corresponding to the positioning pieces, of the upper side wall of the rack, and hollow columns are welded in the positions, corresponding to the rolling pieces, of the upper side wall of the rack; and a driving screw rod is arranged in the side groove of the rack, the driving screw rod penetrates through the right side wall of the rack to be connected with the servo motor, and a connecting rod is assembled on the outer wall of the driving screw rod.
Furthermore, the driving screw is connected with the side walls at two ends of a carrying plate in the rotary cutting element through a connecting rod, the carrying plate is respectively connected with the tool rest and the rotary cutter through bolts, and the cutting edge of the rotary cutter faces one side of the wood body.
Furthermore, the rack is connected with the bottom sliding plate of the connecting sleeve on the positioning part in a sliding manner through the sliding chute, and the bottom side wall of the connecting sleeve in the positioning part is connected with the upper side wall of the rack in a matching manner
Furthermore, the frame is connected with a bent plate on the rolling part through a hollow column, the bent plate is arranged in an L-shaped structure, and the bent plate is rotatably connected with the roll shaft through a bearing.
Compared with the prior art, the invention has the beneficial effects that:
(1) the composite wood board only comprises the first wood skin layer, the first middle layer, the second middle layer and the second wood skin layer, only has a three-layer structure, the layer number structure is simple, the purpose of controlling the thickness of the composite wood board can be achieved by controlling the height of the square battens, the thickness of the traditional composite wood board needs to be formed by stacking a plurality of thin wood boards, the process is complicated, compared with the traditional composite wood board, the glue amount used by the structure can be greatly reduced due to the fact that the layer number is reduced, the cost is saved, and the composite wood board is more environment-friendly.
(2) In the rotary cutter, a servo motor and a rotary cutter are used, when the rotary cutter is used, the servo motor can drive the rotary cutter to adjust the position to enable the rotary cutter to gradually approach to or be far away from wood, and a positioning piece is matched to abut against different positions on the wood, so that the wood descends to a certain height, and then the height between the wood and a rotary cutter edge is reduced to achieve the purpose of adjusting the size of a rotary cut.
(3) The rotary cutter is provided with a positioning piece, when in use, a roller in a rolling piece is positioned through a bent plate to assist wood to roll, the positioning piece at the other side of the wood drives a butt plate to abut against the outer surface wall of the wood through a micro telescopic rod to achieve the aim of finely adjusting the abutting distance, meanwhile, the rough adjustment of the abutting gap can be carried out through a hydraulic rod to ensure that the phenomenon that the abutting distance is smaller and unadjustable is avoided, the problem that the existing wood rotary cutter for wood processing is solved, when in use, the wood is clamped and positioned through the butt plate and a cutting knife in a mode of being matched with the auxiliary roller, the diameter of the wood is gradually reduced during rotary cutting, in order to ensure the effect of clamping and positioning, and further, the aim of abutting is achieved through a mode of moving the auxiliary roller, the mode easily causes the auxiliary roller to contact with the rotary cutter and the butt plate, further causing the problem of the knife edge of the rotary cutter collapsing.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, with the understanding that the present disclosure is to be considered as an exemplification of the invention and is not intended to limit the invention to the embodiments illustrated in the drawings, in which:
FIG. 1 is a perspective view of a composite wood panel;
FIG. 2 is a front view of a composite wood panel.
Fig. 3 is a schematic structural view of a rotary cutting machine;
fig. 4 is a schematic view of a frame structure of the rotary cutting machine;
fig. 5 is an exploded view of a servo motor and a rotary cutting member structure of the rotary cutting machine;
fig. 6 is an exploded view of the rolling member and positioning member structure of the rotary cutting machine.
In the figure: 1-a first wood skin layer, 2-a second wood skin layer, 3-a first intermediate layer, 301-a first wood square strip, 4-a second intermediate layer, 401-a second wood square strip, 5-a glue layer, 6-a wear layer, 7-a spray coating layer, 8-a rack, 801-a side groove, 802-a chute, 803-a hollow column, 9-a servo motor, 901-a driving screw, 902-a connecting rod, 10-a rolling member, 1001-a bending plate, 1002-a roller shaft, 11-a roller, 12-a hydraulic rod, 13-a positioning member, 1301-a connecting sleeve, 1302-a connecting column, 1303-a connecting rod, 1304-a positioning plate, 1305-a micro telescopic rod, 1306-a butt plate, 14-a wood body, 15-a rotary cutting member, 1501-a lap, 1502-knife holder, 1503-rotary cutter.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 and fig. 2, a novel composite wood board, including first cortex 1 and second cortex 2, in this design, first cortex 1 and second cortex 2 all are the science and technology veneer, and the science and technology veneer belongs to the veneer lumber of reproducibility, is the preparation on natural timber's basis, and the science and technology veneer after the processing has smooth, the abundant characteristics of color in surface.
Be provided with first intermediate level 3 between first wooden cortex 1 and second wooden cortex 2, first intermediate level 3 includes the first flitch strip 301 that a plurality of syntropies set up, and a plurality of first flitch strips 301 closely meet and arrange together to 3 structures in first intermediate level that form through this first flitch strip 301 combination are firm, and the dynamics of supporting is good.
Be provided with second intermediate level 4 between first intermediate level 3 and the second veneer layer 2, second intermediate level 4 includes the second flitch strip 401 of a plurality of syntropies settings, and a plurality of second flitch strips 401 closely meet and arrange together to 4 intermediate levels of second formed through this second flitch strip 401 combination structure are firm, and the compactness is high, and the dynamics of supporting is good.
As can be seen from fig. 1, the first batten 301 and the second batten 302 are perpendicular to each other, that is, the grain formed by the first middle layer 3 and the grain formed by the second middle layer 4 are perpendicular and crossed, so that the whole compression resistance is good, and the breaking is not easy to occur.
The wood beam has light weight, high strength-weight ratio and impact resistance, so that the middle layer formed by the wood beam has good compressive strength and high bearing effect, and the manufactured composite wood board is not easy to bend; in the embodiment, the plurality of wood square bars are consistent in size and are tightly combined together, so that the bearing effect of the middle layer is good.
The height of the first batten 301 and the second batten 401 is 0.8-1.2 mm, composite boards with different thicknesses can be produced as required, the first batten 301 and the second batten 401 with different thicknesses can be selectively manufactured, and in the embodiment, the first batten 301 and the second batten 401 can be 1 mm.
In the first middle layer 3, the number of the first square battens 301 per meter length is 620-630, and in this embodiment, the number of the first square battens 301 per meter length is 625, that is, the width of the first square battens 301 is 1.6mm, based on the number of the second square battens 401 in the length direction.
In the second middle layer 4, the number of the second batten 401 per meter length is 650-660 by the number of the first batten 301 in the length direction, in this embodiment, the number of the second batten 401 per meter length is 655, that is, the width of the second batten 401 is 1.53 mm.
Equally divide between first cortex 1 and first intermediate level 3, between first intermediate level 3 and second intermediate level 4, between second intermediate level 4 and the second cortex 2 and do not be provided with glue layer 5, glue layer 5 is used for gluing tightly between layer and layer, and the glue layer is environmental protection PUR glue layer, and the use of environmental protection PUR glue helps the pollution to the injury of human body and environment.
The bonded composite wood board still needs to be subjected to a hot-pressing composite process and a dehydration process, the hot-pressing composite process is to horizontally stack a plurality of produced composite wood boards and put the laminated composite wood boards into a hot-pressing device for hot-pressing composite, so that the first wood skin layer 1, the first middle layer 3, the second middle layer 4 and the second wood skin layer 2 are pressed together, the hot-pressing process is to enable the fibers to be in close contact with one another, the mutual diffusion movement of the lignin, the hemicellulose macromolecular chain segment and the macromolecules per se which are in a bound state is gradually enhanced until the attractive force and the hydrogen bonds between the molecules act, the interface disappears and the gluing process is completed, and all the board bodies are firmly combined together.
The dehydration process is to put a plurality of composite boards after hot pressing into drying equipment for dehydration and drying, and the moisture content of the composite boards is controlled through the dehydration process, so that the phenomenon that the composite boards are cracked and deformed due to too high moisture content is avoided.
The surface of first cortex 1 and second cortex 2 is provided with wearing layer 6, and the thickness of wearing layer 6 is 0.1~0.3mm, and the optimum value is 0.2mm, and the wearing layer is made with the top layer paper impregnation melamine resin that has added the wear-resisting material aluminium oxide, has the surface wear-resisting, the corrosion-resistant characteristics of first cortex 1 and second cortex 2.
Be provided with spraying layer 7 in wearing layer 6's top, the later stage can form the spraying layer 7 of different impressions through the different colours of spraying to satisfy different consumers' demand.
The upper surface and the lower surface of each first batten 301 are both flatly arranged, and the upper surface and the lower surface of each second batten 401 are both flatly arranged, so that the upper surface and the lower surface of the first middle layer 3 and the lower surface of the second middle layer 4 are both flatly arranged, bonding is facilitated, the overall structure is compact after compounding, and stability is good.
A composite wood board production process comprises the following steps:
(1) peeling wood to form a log, soaking the log at the temperature of 75-95 ℃ for 11-13 h, then conveying the log to a turf workshop, carrying out finer peeling again, then conveying the log to a rotary cutter, cutting the log into sheets with the thickness of 0.3-0.5 mm by the rotary cutter, and conveying the sheets to a cutting machine for cutting and stacking; in this example, the log was soaked at 80 ℃ for 12 hours and then cut into sheets of 0.4mm thickness by a rotary cutter.
(2) Feeding the stacked sheets into a dryer, baking at a high temperature of 396-410 ℃ for 4-5 min, inputting the dried sheets into a moisture scanner one by one for detection, and continuously returning and drying unqualified sheets until the target value is reached; then conveying the dried sheet into a presser to press and flatten the sheet; then cutting the sheet into a size of a specification to form a first veneer layer and a second veneer layer for standby; in this example, the stacked sheets were fed into a dryer and baked at a high temperature of 400 ℃ for 4 min.
(3) Peeling the skin of the batten, soaking the batten in a wood preservative solution for 65-85 h, sending the batten to a cool workshop for natural air drying for 2-4 days, sending the batten to a numerical control slicing machine, and slicing the batten with the thickness of 0.8-1.2 mm; then sending the batten skins into a cutting machine, cutting the batten skins of the cutting machine by the cutting machine, and stacking; in this embodiment, the skin of the wood beam is peeled, soaked in the wood preservative solution for 75h, and then sent to a cool workshop to be naturally air-dried for 3 days, and then the wood beam is sent to a numerical control slicing machine to slice the wood beam with the thickness of 1 mm.
(4) Feeding the stacked batten skins into a dryer, baking for 2-4 min at the high temperature of 411-418 ℃, inputting the dried batten skins into a moisture scanner one by one for detection, and continuously returning and drying unqualified batten skins until the target value is reached; then conveying the dried batten leather into a presser to press and flatten the sheet; then cutting the sheet into a size of a specification; in this example, the stacked veneer was put into a dryer and baked at a high temperature of 415 ℃ for 3 min.
(5) Stacking the batten skins to 1.2-1.8 m, feeding the batten skins into a cutting machine, cutting the batten skins vertically to be cut off, cutting the batten strips with the width of 1.3-1.8 mm, and waiting for standby; in this example, the square veneer is stacked up to 1.6m and then fed into a cutter to be cut off vertically, so that square strips with widths of 1.53mm and 1.6mm are cut; of which 1.53mm is used for the first intermediate layer 3 and 1.6mm squared timber is used for the second intermediate layer 4.
(6) Coating a glue layer on the second veneer layer, and arranging a plurality of wood square bars above the second veneer layer in the same direction to form a second middle layer; then coating a glue layer on the second middle layer, and arranging a plurality of batten strips above the second middle layer in the same direction to form a first middle layer, wherein the arrangement direction of the batten strips of the second middle layer is vertical to the arrangement direction of the batten strips of the first middle layer; next, a glue layer is applied over the first intermediate layer, and a first veneer layer is placed on the first intermediate layer.
(7) Putting the plate compounded in the step into hot pressing equipment, and hot pressing at 133-136 ℃ for 20-25 min under the pressure of 0.25-0.55 Mpa; in this example, hot pressing was carried out at a temperature of 133 ℃ for 23min under a pressure of 0.45 MPa.
(8) And taking out the composite board, and cutting the composite board into a proper size according to the specification to obtain the composite board.
As shown in fig. 3 to 6, a rotary cutter for a composite wood board production process comprises a frame 8, a servo motor 9, a positioning member 13 and a rotary cutting member 15, wherein the servo motor 9 is embedded in the right side wall of the frame 8, the frame 8 is connected with the rotary cutting member 15 through the servo motor 9, a rolling member 10 is installed on the upper side wall of the left part of the frame 8, the right side wall of the rolling member 10 is connected with the positioning member 13 through a hydraulic rod 12, and a wood body 14 is placed between the rolling member 10 and the positioning member 13;
a roller shaft 1002 penetrates through the side wall of the bottom of a bent plate 1001 in the rolling part 10, and the bent plate 1001 is connected with the roller 11 through the roller shaft 1002;
a connecting sleeve 1301 is sleeved on one side wall of one end of a connecting column 1302 in the positioning piece 13, the side wall of the other end of the connecting column 1302 is connected with a positioning plate 1304 through a connecting rod 1303, and the side wall of the positioning plate 1304 is connected with a butt plate 1306 through a micro telescopic rod 1305;
the carrying plate 1501 in the rotary cutting member 15 is clamped with a knife rest 1502, and the knife rest 1502 is provided with a rotary cutter 1503.
Side grooves 801 are formed in the central axis of the front side wall and the rear side wall of the rack 8, sliding grooves 802 are formed in the positions, corresponding to the positioning pieces 13, of the upper side wall of the rack 8, and hollow columns 803 are welded in the positions, corresponding to the rolling pieces 10, of the upper side wall of the rack 8.
A driving screw 901 is arranged in the side groove 801 of the rack 8, the driving screw 901 penetrates through the right side wall of the rack 8 to be connected with the servo motor 9, and a connecting rod 902 is assembled on the outer wall of the driving screw 901; the driving screw 901 is connected with the side walls of two ends of a carrying plate 1501 in the rotary cutter 15 through a connecting rod 902, the carrying plate 1501 is respectively connected with a knife rest 1502 and a rotary cutter 1503 through bolts, and the edge of the rotary cutter 1503 is arranged towards one side of the wood body 14; the servo motor 9 can drive the rotary cutter 15 to adjust the position, so that the rotary cutter gradually approaches to or leaves away from the wood, and the positioning piece 13 is matched to abut against different positions on the wood, so that the wood descends by a certain height, and the height between the wood and the edge of the rotary cutter 1503 becomes smaller, thereby achieving the purpose of adjusting the size of the rotary cut.
The rack 8 is in sliding connection with a bottom sliding plate of a connecting sleeve 1301 on the positioning part 13 through a sliding chute 802, and the bottom side wall of the connecting sleeve 1301 in the positioning part 13 is in matching connection with the upper side wall of the rack 8; the frame 8 is connected with a bent plate 1001 on the rolling element 10 through a hollow column 803, the bent plate 1001 is arranged in an L-shaped structure, and the bent plate 1001 is rotationally connected with a roll shaft 1002 through a bearing; cylinder 11 in the rolling member 10 is fixed a position through bent plate 1001, and supplementary timber rolls, and the setting element 13 of timber opposite side then drives butt joint board 1306 through miniature telescopic link 1305 and contradicts on ligneous exterior wall, reaches the purpose of meticulous regulation conflict interval, and the while is roughly adjusted conflict clearance then accessible hydraulic stem 12 and is gone on, guarantees to avoid the less and unadjustable phenomenon of conflict interval to take place.
Sheets with appropriate thickness can be cut by the rotary cutter to be used as the first veneer layer 1 and the second veneer layer 2.
The composite wood board of the invention and the composite wood board on the market are subjected to compression resistance test and water soaking test (soaking in clear water for 48 hours), and the specific test results are as follows:
compressive strength per MPa Static bending strength/MPa Appearance after soaking in water
The composite wood board of the invention 187 96.3 Without change
Commercially available composite wood board 116 65.4 Cracking and bending
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (10)

1. A composite wood board is characterized by comprising a first wood veneer layer and a second wood veneer layer;
a first middle layer is arranged between the first veneer layer and the second veneer layer and comprises a plurality of first batten strips arranged in the same direction;
a second middle layer is arranged between the first middle layer and the second veneer layer and comprises a plurality of second batten strips arranged in the same direction;
the first batten and the second batten are perpendicular to each other.
2. The composite wood board according to claim 1, wherein the first and second wood strands have a height of 0.8 to 1.2 mm; in the first middle layer, the number of the first batten contained in each meter of length is 620-630 according to the number of the second batten in the length direction; in the second intermediate layer, the number of the second batten contained in each meter of length is 650-660 according to the number of the first batten in the length direction.
3. A composite wood board according to claim 1 or 2, wherein glue layers are provided between the first wood veneer layer and the first intermediate layer, between the first intermediate layer and the second intermediate layer, and between the second intermediate layer and the second wood veneer layer, respectively.
4. The composite wood board according to claim 3, wherein the surfaces of the first veneer layer and the second veneer layer are provided with wear-resistant layers, and the thickness of each wear-resistant layer is 0.1-0.3 mm; and a spraying layer is arranged above the wear-resistant layer.
5. The production process of the composite wood board is characterized by comprising the following steps of:
(1) peeling the wood to form a log, soaking the log at the temperature of 75-95 ℃ for 11-13 h, then sending the log to a turf workshop, then carrying out finer peeling again, then sending the log to a rotary cutter, cutting the log into sheets with the thickness of 0.3-0.5 mm by the rotary cutter, and conveying the sheets to a cutting machine for cutting and stacking;
(2) feeding the stacked sheets into a dryer, baking at a high temperature of 396-410 ℃ for 4-5 min, inputting the dried sheets into a moisture scanner one by one for detection, and continuously returning and drying unqualified sheets until the target value is reached; then conveying the dried sheet into a presser to press and flatten the sheet; then cutting the sheet into a size of a specification to form a first veneer layer and a second veneer layer for standby;
(3) peeling the skin of the batten, soaking the batten in a wood preservative solution for 65-85 h, sending the batten to a cool workshop for natural air drying for 2-4 days, sending the batten to a numerical control slicing machine, and slicing the batten with the thickness of 0.8-1.2 mm; then, the wood square skin is sent to a cutting machine, and the wood square skin is stacked after being cut by the cutting machine;
(4) feeding the stacked batten skins into a dryer, baking for 2-4 min at the high temperature of 411-418 ℃, inputting the dried batten skins into a moisture scanner one by one for detection, and continuously returning and drying unqualified batten skins until the target value is reached; conveying the dried batten leather into a presser to press and flatten the sheet; then cutting the sheet into a size;
(5) stacking the veneer to 1.2-1.8 m, feeding the veneer into a cutting machine, and vertically cutting off the veneer, so as to cut the veneer strips with the width of 1.3-1.8 mm for later use;
(6) coating a glue layer on the second veneer layer, and arranging a plurality of wood square bars above the second veneer layer in the same direction to form a second middle layer; then coating a glue layer on the second middle layer, and arranging a plurality of batten strips above the second middle layer in the same direction to form a first middle layer, wherein the arrangement direction of the batten strips of the second middle layer is vertical to the arrangement direction of the batten strips of the first middle layer; then, coating a glue layer on the upper part of the first middle layer, and placing a first veneer layer on the first middle layer;
(7) putting the plate compounded in the step into hot pressing equipment, and hot pressing at 133-136 ℃ for 20-25 min under the pressure of 0.25-0.55 Mpa;
(8) and taking out the composite board, and cutting the composite board into the proper size according to the specification to obtain the composite board.
6. A rotary cutter for the composite wood board production process according to claim 5, which comprises a rack, a servo motor, a positioning member and a rotary cutting member, wherein the servo motor is embedded in the right side wall of the rack, the rack is connected with the rotary cutting member through the servo motor, a rolling member is installed on the upper side wall of the left part of the rack, the right side wall of the rolling member is connected with the positioning member through a hydraulic rod, and a wood body is placed between the rolling member and the positioning member;
a roller shaft is inserted into the side wall of the bottom of the bent plate in the rolling part in a penetrating manner, and the bent plate is connected with the roller through the roller shaft;
a connecting sleeve is sleeved on the side wall of one end of a connecting column in the positioning piece, the side wall of the other end of the connecting column is connected with a positioning plate through a connecting rod, and the side wall of the positioning plate is connected with the butt plate through a micro telescopic rod;
a knife rest is clamped on a support plate in the rotary cutting piece, and a rotary cutter is arranged on the knife rest.
7. The rotary cutting machine according to claim 6, wherein side grooves are formed on the central axis of the front and rear side walls of the frame, sliding grooves are formed on the upper side wall of the frame at positions corresponding to the positioning members, and hollow columns are welded on the upper side wall of the frame at positions corresponding to the rolling members; and a driving screw rod is arranged in the side groove of the rack, the driving screw rod penetrates through the right side wall of the rack to be connected with the servo motor, and a connecting rod is assembled on the outer wall of the driving screw rod.
8. A rotary cutting machine according to claim 7, wherein the driving screw is connected to the side walls of both ends of the support plates of the rotary cutting member via connecting rods, the support plates are connected to the cutter holder and the rotary cutter via bolts, respectively, and the cutting edge of the rotary cutter is disposed toward the wood body.
9. A rotary cutting machine according to claim 8, wherein the frame is slidably connected to the bottom slide plate of the connection sleeve of the positioning member via a sliding groove, and the bottom side wall of the connection sleeve of the positioning member is fittingly connected to the upper side wall of the frame.
10. A rotary cutting machine according to claim 9, wherein said frame is connected to a bent plate on said rolling member via a hollow column, said bent plate is disposed in an L-shaped configuration, and said bent plate is rotatably connected to said roller shaft via a bearing.
CN202210497459.1A 2022-05-09 2022-05-09 Composite wood board and production process and equipment thereof Pending CN114714450A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102294713A (en) * 2011-06-24 2011-12-28 陈琳 Vertical-type recombined thermal compression plywood and production method thereof
CN206344262U (en) * 2016-12-13 2017-07-21 宿迁市金板木业有限公司 A kind of environment friendly light glued board
CN206344272U (en) * 2016-12-02 2017-07-21 宿迁市金板木业有限公司 A kind of non-fastenning-shaft timber wood rotary shaver
CN208020424U (en) * 2018-03-11 2018-10-30 江苏名乐地板有限公司 It is a kind of can batch machining wood single-plate peeler
CN108858592A (en) * 2018-07-03 2018-11-23 临沂市华源经贸有限公司 The cycle production process of timber leftover bits and pieces production Europe deals
CN109676737A (en) * 2018-12-14 2019-04-26 沭阳县金森源木业有限公司 A kind of production method of solid wood thickness core plate
CN111688290A (en) * 2020-06-22 2020-09-22 广西融水中杉文化科技开发有限公司 All-fir ecological blockboard and manufacturing method thereof
CN213563161U (en) * 2019-12-28 2021-06-29 优优新材料股份有限公司 Environment-friendly recombined wood three-ply board

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102294713A (en) * 2011-06-24 2011-12-28 陈琳 Vertical-type recombined thermal compression plywood and production method thereof
CN206344272U (en) * 2016-12-02 2017-07-21 宿迁市金板木业有限公司 A kind of non-fastenning-shaft timber wood rotary shaver
CN206344262U (en) * 2016-12-13 2017-07-21 宿迁市金板木业有限公司 A kind of environment friendly light glued board
CN208020424U (en) * 2018-03-11 2018-10-30 江苏名乐地板有限公司 It is a kind of can batch machining wood single-plate peeler
CN108858592A (en) * 2018-07-03 2018-11-23 临沂市华源经贸有限公司 The cycle production process of timber leftover bits and pieces production Europe deals
CN109676737A (en) * 2018-12-14 2019-04-26 沭阳县金森源木业有限公司 A kind of production method of solid wood thickness core plate
CN213563161U (en) * 2019-12-28 2021-06-29 优优新材料股份有限公司 Environment-friendly recombined wood three-ply board
CN111688290A (en) * 2020-06-22 2020-09-22 广西融水中杉文化科技开发有限公司 All-fir ecological blockboard and manufacturing method thereof

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Application publication date: 20220708