CN217099227U - Spareribs wood core laminate flooring - Google Patents
Spareribs wood core laminate flooring Download PDFInfo
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- CN217099227U CN217099227U CN202220753000.9U CN202220753000U CN217099227U CN 217099227 U CN217099227 U CN 217099227U CN 202220753000 U CN202220753000 U CN 202220753000U CN 217099227 U CN217099227 U CN 217099227U
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Abstract
The utility model discloses a rib wood core laminate flooring, this rib wood core laminate flooring include eucalyptus veneer layer, thick pine core plate layer, a plurality of layers down eucalyptus veneer layer and balanced layer including the panel that from top to bottom sets gradually, the beech back plate layer is kept away from down the one side of eucalyptus veneer layer and is established the impregnated paper dampproof course including beech back plate layer. The utility model discloses open the expansion joint of uniform dimension and quantity along the texture direction on pine veneer, play the wet shrinkage and wet swelling, cushioning effect, the moisture-proof dimensional stability and the heat-resisting dimensional stability that improve rib wood core laminate flooring are good, be fit for the environment use in south and north more, can disperse the floor internal stress simultaneously, still detailed record has standardized rib wood core laminate flooring's preparation method, the preparation step is simple, practical production guides the meaning great, help improving rib wood core laminate flooring's quality, adopt E simultaneously 0 The grade environment-friendly adhesive is more environment-friendly in the floor manufacturing process, and is suitable for industrial production.
Description
Technical Field
The utility model belongs to the technical field of the floor, concretely relates to rib wood core laminate flooring.
Background
The composite floor is prepared by taking rare tree wood skins with different thicknesses as panels and solid wood boards with staggered textures as base materials and spraying special paint for the multifunctional floor. The composite floor is accepted and advocated by the public with the advantages of natural wood texture, beautiful appearance, easy installation and maintenance and the like, but the dimensional stability of the existing composite floor needs to be further improved, particularly in the south, the floor can deform due to damp weather, and the like, so that the normal use of the floor is influenced, and the adhesive used in the preparation process of the floor contains formaldehyde and the like, so that the floor has great harm to human bodies. Therefore, the composite floor which is not easy to deform and does not contain formaldehyde has important practical significance.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem existing in the prior art, the utility model aims to provide a rib wood-core composite floor.
In order to realize the above purpose, reach above-mentioned technological effect, the utility model discloses a technical scheme be:
the utility model provides a spareribs wood core laminate flooring, eucalyptus veneer layer, thick pine wood core plate layer, a plurality of layers down eucalyptus veneer layer and balanced layer including panel, a plurality of layers that set gradually from top to bottom, balanced layer includes the beech backsheet layer, and the one side that the eucalyptus veneer layer was kept away from down to the beech backsheet layer is provided with the impregnated paper dampproof course.
Further, rib wood core laminate flooring is including eucalyptus veneer layer, thick pine veneer layer, the eucalyptus veneer layer and balanced layer down the one deck on panel, the one deck that from top to bottom sets gradually, and the one deck is gone up eucalyptus veneer layer, thick pine veneer layer, the one deck down and is formed "trinity" substrate.
Further, rib wood core laminate flooring is including the panel that from top to bottom sets gradually, eucalyptus veneer layer, thick pine veneer layer, two-layer eucalyptus veneer layer and balanced layer down on the one deck, and eucalyptus veneer layer, thick pine veneer layer, two-layer eucalyptus veneer layer down form "four unification" substrates on the one deck.
Further, rib wood core laminate flooring is including the panel that from top to bottom sets gradually, two-layer eucalyptus veneer layer, thick pine veneer layer, two-layer eucalyptus veneer layer and balanced layer down, and two-layer eucalyptus veneer layer, thick pine veneer layer, two-layer eucalyptus veneer layer down form "five unification" substrate.
Furthermore, the panel adopts a solid wood surface skin.
Further, the panel includes impregnated paper surface course and explosion-proof paper buffer layer or high density board buffer layer that from top to bottom sets gradually.
Furthermore, open a plurality of expansion joint along the texture direction on the pine veneer of thick pine core layer, the expansion joint top is equipped with reserves, reserves on the pine veneer.
Furthermore, a plurality of expansion joints are arranged on the thick pine core plate layer and the lower eucalyptus veneer layer tightly attached to the lower side of the thick pine core plate layer along the pine texture direction, the expansion joints penetrate through the thick pine core plate layer and the lower eucalyptus veneer layer tightly attached to the lower side of the thick pine core plate layer, and a reservation is arranged above the expansion joints and reserved on the pine veneer.
Furthermore, the width of the expansion joint is 1.5mm, and the depth is 8.2 mm.
Further, the thickness of the thick pine core plate layer is 7.5 +/-0.1 mm, the thickness of the upper eucalyptus veneer layer is 3.0-3.6mm or 1.65-1.7mm, and the thickness of the lower eucalyptus veneer layer is 1.65-1.7mm or 2.0-2.2 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a rib wood core laminate flooring, this rib wood core laminate flooring include eucalyptus veneer layer, thick pine core plate layer, a plurality of layers down eucalyptus veneer layer and balanced layer including the panel that from top to bottom sets gradually, the one side that eucalyptus veneer layer was kept away from down to the beech back plate layer is provided with the impregnated paper dampproof course including beech back plate layer. The utility model provides a pair of spareribs wood core laminate flooring opens the expansion joint of a definite size and a definite quantity along the texture direction on the pine veneer, can the dry shrinkage wet swelling, plays the cushioning effect, and the moisture-proof dimensional stability who improves spareribs wood core laminate flooring is good with heat-resisting dimensional stability, is fit for the environment use in south and north more, can disperse the floor internal stress simultaneously, and structural stability is high, the utility model discloses detailed record has standardized spareribs wood core laminate flooring's preparation method, and preparation method is simple, and the practical production directive significance is great, helps improving spareribs wood core laminate flooring's quality, adopts the formaldehyde-free gluing agent promptly E simultaneously 0 The grade environment-friendly adhesive is more environment-friendly in the floor manufacturing process and is suitable for industrial production.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of embodiment 1 and embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 4 of the present invention.
Detailed Description
The present invention is described in detail below to enable the advantages and features of the present invention to be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the scope of the present invention.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-4, a rib wood core laminate flooring, including panel 1, substrate 2 and balanced layer 3 that from top to bottom set gradually, substrate 2 includes a plurality of layers of eucalyptus veneer layer 4 on that from top to bottom set gradually, one deck pine core plate layer 5 and a plurality of layers of eucalyptus veneer layer 6 down, substrate 2 can make "trinity" or "four unifications" or "five unifications" substrate according to the actual demand, balanced layer 3 includes beech backsheet layer 7, the one side that lower eucalyptus veneer layer 6 was kept away from to beech backsheet layer 7 is provided with the impregnated paper dampproof course.
The panel 1 can be made of an impregnated paper surface layer and an explosion-proof paper buffer layer or a high-density board buffer layer, and can also be made of a solid wood surface skin.
A preparation method of a spareribs wood core composite floor comprises the following steps:
the method comprises the following steps: inspection of raw materials
Inspecting the specifications, size deviations and water contents of the eucalyptus veneer and the pine veneer;
the deviation of the thickness of the pine veneer is +/-0.1 mm, the straightness is less than or equal to 1mm/m, the deviation of the diagonal is less than or equal to 3mm, and the density is 0.50-0.60g/cm 3 The water content is 7-10%;
step two: raw material sorting
Selecting high-quality untruncated pine veneers and eucalyptus veneers, wherein the untruncated pine veneers are not allowed to have dead knots, blue changes, ring cracks, cracking and the like, and the eucalyptus veneers are rotten, free of holes, free of bark inclusion and less in knots;
step three: substrate preparation
Preparing a three-in-one or four-in-one or five-in-one base material according to actual requirements;
step four: scraping the base material 2 to be greasy and preserving health
Step five: trimming and sanding the base material 2
Trimming the periphery of the base material 2 according to a specified size, and sanding the base material 2 on a sander with a fixed thickness on two sides;
step six: panel and balance layer hot-pressing combination
Hot-pressing and combining the impregnated paper surface layer and the anti-explosion paper buffer layer together, or hot-pressing and combining the impregnated paper surface layer and the high-density board buffer layer together to form the panel 1;
hot-pressing and combining a beech back plate and a impregnated paper moisture-proof layer together to form a balance layer 3;
if the panel 1 is a solid wood surface skin, the panel is directly pressed and stuck on the base material 2;
step seven: the upper surface and the lower surface of the substrate 2 are respectively pressed with the panel 1 and the balance layer 3 to prepare a large board, the uppermost surface of the large board is an impregnated paper surface layer or a solid wood surface skin (wood species such as oak, black walnut, teak and the like), and the lowermost surface of the large board is an impregnated paper moisture-proof layer;
step eight: curing the big plate;
step nine: splitting the large plate;
step ten: milling a blank;
step eleven: plain plate chamfering paint;
step twelve: sealing wax on the plain plate;
step thirteen: and (6) packaging a finished product.
In the third step, the preparation steps of the three-in-one base material comprise:
1) prepressing
Longitudinally and transversely pre-pressing the jointless pine veneers and the eucalyptus veneers;
2) expansion joint
A plurality of expansion joints 8 are arranged on the jointless pine veneer along the texture direction, a reservation 9 is arranged above the expansion joints 8, and the reservation 9 is arranged on the jointless pine veneer;
3) pressing paste
Using E on a jointless pine veneer 0 The eucalyptus veneer is re-pasted with the grade environment-friendly adhesive, the grains of the eucalyptus veneer on the upper surface and the lower surface of the knotless pine veneer are in the same direction, and the eucalyptus veneer is pre-pressed and then hot-pressed to form a three-in-one base material.
In the third step, the preparation of the 'four-in-one' base material comprises the following steps:
1) prepressing
On an unthread pine veneer, use E 0 The thick eucalyptus veneers are attached to the environment-friendly adhesive, the thin eucalyptus veneers are attached to the lower part of the environment-friendly adhesive, and the grains of the eucalyptus veneers on the upper surface and the lower surface of the knotless pine veneers are in the same direction and are vertically and horizontally pre-pressed with the knotless pine veneers;
2) expansion joint
A plurality of expansion joints 8 are formed in the thinner eucalyptus single plates and the jointless pine single plates along the grain direction of the pine, the expansion joints 8 penetrate the thinner eucalyptus single plates and the jointless pine single plates, a reservation 9 is arranged above the expansion joints 8, and the reservation 9 is formed on the jointless pine single plates;
3) pressing paste
Using E on the lower surface of thinner eucalyptus veneer 0 The thick eucalyptus veneers are laminated in the same direction by the grade environment-friendly adhesive, and hot pressed after prepressing to form a four-in-one baseA material is provided.
In the third step, the preparation of the five-in-one base material comprises the following steps:
1) prepressing
Using E on the upper and lower surfaces of the jointless pine veneer 0 The method comprises the following steps that (1) a thin eucalyptus veneer is attached to a grade environment-friendly adhesive, the textures of the eucalyptus veneer are in the same direction, and the eucalyptus veneer and an unsmooth pine veneer are subjected to longitudinal and transverse prepressing;
2) expansion joint
A plurality of expansion joints 8 are arranged on the knotless pine veneer and the eucalyptus veneer below the same along the grain direction of the pine, the expansion joints 8 penetrate through the knotless pine veneer and the eucalyptus veneer below the same, a reservation 9 is arranged above the expansion joints 8, and the reservation 9 is arranged on the knotless pine veneer;
3) pressing paste
E is used on the upper surface of the eucalyptus veneer on the jointless pine veneer in the same texture direction 0 The environment-friendly adhesive is coated with a thin eucalyptus veneer, and the lower surface of the lower eucalyptus veneer under the knotless pine veneer is coated with E in the same grain direction 0 The environment-friendly adhesive is re-pasted with a thicker eucalyptus veneer, and is pre-pressed and then hot-pressed to form a five-in-one base material.
The utility model discloses adopt the formaldehyde-free gluing agent during the group blank, satisfy people's green healthy environmental protection's demand, be applicable to the floor field. The formaldehyde-free adhesive comprises the following components in parts by weight:
5-15 parts of waterborne epoxy resin emulsion
30-50 parts of enzymolysis peanut protein
1-7 parts of ethanol.
The preparation method of the formaldehyde-free adhesive comprises the following steps:
and (2) under the condition of 30-60 ℃, uniformly mixing half of the aqueous epoxy resin emulsion, 30-50 parts of the enzymolyzed peanut protein and 1-7 parts of ethanol under stirring, cooling to 20-28 ℃, adding the rest of the aqueous epoxy resin emulsion, and uniformly mixing under stirring to obtain the required formaldehyde-free adhesive.
Example 1
As shown in fig. 1-2, a rib wood core laminate flooring, including panel 1, substrate 2 and balanced layer 3 that from top to bottom set gradually, substrate 2 is the "trinity" substrate including eucalyptus veneer layer 4, one deck pine core board layer 5 and one deck eucalyptus veneer layer 6 down on the one deck that from top to bottom set gradually, substrate 2, balanced layer 3 includes beech backsheet layer 7, the one side that lower eucalyptus veneer layer 6 was kept away from to beech backsheet layer 7 is provided with the impregnated paper dampproof course.
The panel 1 can be made of an impregnated paper surface layer and an explosion-proof paper buffer layer or a high-density board buffer layer, and can also be made of a solid wood surface skin.
A preparation method of a spareribs wood core composite floor comprises the following steps:
the method comprises the following steps: inspection of raw materials
Inspecting the specifications, size deviations and water contents of the eucalyptus veneer and the pine veneer;
the thickness of the pine veneer is 7.5 +/-0.1 mm, the straightness is less than or equal to 1mm/m, the diagonal deviation is less than or equal to 3mm, and the density is 0.50-0.60g/cm 3 The water content is 7-10%;
the thickness of the eucalyptus veneer is 3.0-3.6 mm;
step two: raw material sorting
Selecting high-quality untruncated pine veneers and eucalyptus veneers, wherein the untruncated pine veneers are not allowed to have dead knots, blue changes, ring cracks, cracking and the like, and the eucalyptus veneers are rotten, free of holes, free of bark inclusion and less in knots;
step three: preparation of three-in-one base material
1) Prepressing
Longitudinally and transversely pre-pressing the jointless pine veneers and the eucalyptus veneers;
2) expansion joint
A plurality of expansion joints 8 with the width of about 1.5mm and the depth of about 6.5mm are arranged on the jointless pine veneer along the texture direction, a reservation 9 with the width of 1mm is arranged above the expansion joints 8, and the reservation 9 is arranged on the jointless pine veneer; the expansion joints 5 are arranged at equal intervals;
3) pressing paste
Using E on a jointless pine veneer 0 The eucalyptus veneers are re-pasted with the grade environment-friendly adhesive, the grains of the eucalyptus veneers on the upper surface and the lower surface of the knotless pine veneers are in the same direction, and the eucalyptus veneers are pre-pressed and then hot-pressed to form a three-in-one base material;
wherein E is 0 Single-side coating weight 2 of grade environment-friendly adhesive20-240g/cm 2 ；
Step four: scraping greasiness and preserving health for 7-10 days by using a three-in-one base material;
step five: 'three-in-one' base material trimming and fixed thickness sanding
The length deviation of the trimmed three-in-one substrate is +/-1 mm, the width deviation is +/-0.5 mm, the fixed thickness is 13.6 +/-0.2 mm, the straightness is less than or equal to 1mm/m, the diagonal deviation is less than or equal to 3mm, the warpage in the length direction is less than or equal to 5mm, and the warpage in the width direction is less than or equal to 3 mm;
step six: panel 1 and balance layer 3 hot pressing combination
Combining the impregnated paper surface layer and the explosion-proof paper buffer layer together by hot pressing, or combining the impregnated paper surface layer and the high-density board buffer layer (the density is more than or equal to 0.85 g/cm) with the thickness of 0.8-1.0mm 3 ) Hot pressing and combining together to form the panel 1;
hot-pressing and combining a beech back plate with the thickness of 0.45-0.55mm and a impregnated paper moisture-proof layer together to form a balance layer 3;
step seven: the upper surface and the lower surface of the three-in-one substrate are respectively pressed and pasted with the panel 1 and the balance layer 3 to prepare a large panel;
step eight: curing the big plates for 7-10 days;
step nine: splitting the large plate;
step ten: milling a blank;
the blank is unlocked, the chamfer angle is 45 degrees, and the assembly gap is less than or equal to 0.20 mm;
step eleven: plain plate chamfering paint
The color of the chamfering paint is coordinated with the color of the board surface, and the chamfering paint is dried by adopting water-based paint and infrared;
step twelve: sealing wax on the plain plate;
step thirteen: packaging the finished product, wherein the thickness of the finished product is 15 +/-0.2 mm.
E 0 The grade environment-friendly adhesive does not contain toxic gases such as formaldehyde and the like, is healthy and environment-friendly, and comprises the following components in parts by weight:
12 parts of waterborne epoxy resin emulsion
30 parts of enzymolysis peanut protein
And 2 parts of ethanol.
E 0 The preparation method of the grade environment-friendly adhesive comprises the following steps:
mixing 6 parts of aqueous epoxy resin emulsion, 30 parts of enzymolyzed peanut protein and 2 parts of ethanol uniformly under stirring at 30-60 ℃, cooling to 20-28 ℃, adding the rest 6 parts of aqueous epoxy resin emulsion, and uniformly mixing under stirring to obtain the required E 0 A grade environment-friendly adhesive.
E of the present embodiment 0 The grade environment-friendly adhesive can also be obtained by market purchase.
Example 2
As shown in fig. 1-2, a rib wood core laminate flooring, including panel 1, substrate 2 and balanced layer 3 that from top to bottom set gradually, substrate 2 is the "trinity" substrate including eucalyptus veneer layer 4, one deck pine core board layer 5 and one deck eucalyptus veneer layer 6 down on the one deck that from top to bottom set gradually, substrate 2, balanced layer 3 includes beech backsheet layer 7, the one side that lower eucalyptus veneer layer 6 was kept away from to beech backsheet layer 7 is provided with the impregnated paper dampproof course.
The panel 1 is made of an impregnated paper surface layer and an explosion-proof paper buffer layer.
A preparation method of a spareribs wood core composite floor comprises the following steps:
the method comprises the following steps: inspection of raw materials
Inspecting the specifications, size deviations and water contents of the eucalyptus veneer and the pine veneer;
the pine veneer has a thickness of 7.5mm, a straightness of less than or equal to 1mm/m, a diagonal deviation of less than or equal to 3mm, and a density of 0.50g/cm 3 The water content is 8%;
the thickness of the eucalyptus veneer is 3.0 mm;
step two: raw material sorting
Selecting high-quality untruncated pine veneers and eucalyptus veneers, wherein the untruncated pine veneers are not allowed to have dead knots, blue changes, ring cracks, cracking and the like, and the eucalyptus veneers are rotten, free of holes, free of bark inclusion and less in knots;
step three: preparation of three-in-one base material
1) Prepressing
Longitudinally and transversely pre-pressing the jointless pine veneers and the eucalyptus veneers;
2) expansion joint
A plurality of expansion joints 8 with the width of about 1.5mm and the depth of about 6.5mm are arranged on the jointless pine veneer along the texture direction, a reservation 9 with the width of 1mm is arranged above the expansion joints 8, and the reservation 9 is arranged on the jointless pine veneer; the expansion joints 5 are arranged at equal intervals;
3) pressing paste
Using E on a jointless pine veneer 0 The eucalyptus veneers are re-pasted with the grade environment-friendly adhesive, the grains of the eucalyptus veneers on the upper surface and the lower surface of the knotless pine veneers are in the same direction, and the eucalyptus veneers are pre-pressed and then hot-pressed to form a three-in-one base material;
wherein E is 0 Single-side coating weight of 220g/cm grade environment-friendly adhesive 2 ；
Step four: scraping greasiness and preserving health for 9 days by using a three-in-one base material;
step five: 'three-in-one' base material trimming and fixed thickness sanding
The length deviation of the trimmed three-in-one substrate is +/-1 mm, the width deviation is +/-0.5 mm, the fixed thickness is 13.6 +/-0.2 mm, the straightness is less than or equal to 1mm/m, the diagonal deviation is less than or equal to 3mm, the warpage in the length direction is less than or equal to 5mm, and the warpage in the width direction is less than or equal to 3 mm;
step six: panel 1 and balance layer 3 hot pressing combination
Combining the impregnated paper surface layer and the explosion-proof paper buffer layer together by hot pressing to form a panel 1;
hot-pressing and combining a beech back plate with the thickness of 0.55mm and a impregnated paper moisture-proof layer together to form a balance layer 3;
step seven: the upper surface and the lower surface of the three-in-one substrate are respectively pressed and pasted with the panel 1 and the balance layer 3 to prepare a large panel;
step eight: curing the big plate for 10 days;
step nine: splitting the large plate;
step ten: milling a blank;
the blank is unlocked, the chamfer angle is 45 degrees, and the assembly gap is less than or equal to 0.20 mm;
step eleven: plain plate chamfering paint
The color of the chamfer paint is coordinated with the color of the board surface, and the chamfer paint is dried by adopting water paint and infrared rays;
step twelve: sealing wax on the plain plate;
step thirteen: packaging the finished product, wherein the thickness of the finished product is 15 +/-0.2 mm.
The same as in example 1.
Example 3
As shown in fig. 1 and fig. 3, the difference between the present embodiment and embodiment 1 is that the rib wood core composite floor board of the present embodiment comprises a panel 1, a substrate 2 and a balance layer 3 which are sequentially arranged from top to bottom, the substrate 2 comprises an upper eucalyptus veneer layer 4, a thick pine wood core layer 5 and two lower eucalyptus veneer layers 6 which are sequentially arranged from top to bottom, the thicknesses of the lower eucalyptus veneer layers 6 can be the same or different, the substrate 2 is a "four-in-one" substrate, the balance layer 3 comprises a beech back plate layer 7, and a side of the beech back plate layer 7 away from the lower eucalyptus veneer layers 6 is provided with a impregnated paper moisture-proof layer.
A preparation method of a spareribs wood core composite floor comprises the following steps:
the method comprises the following steps: inspection of raw materials
Inspecting the specifications, size deviations and water contents of the eucalyptus veneer and the pine veneer;
the thickness of the pine veneer is 7.5 +/-0.1 mm, the straightness is less than or equal to 1mm/m, the diagonal deviation is less than or equal to 3mm, and the density is 0.50-0.60g/cm 3 The water content is 7-10%;
step two: raw material sorting
Selecting high-quality untruncated pine veneers and eucalyptus veneers, wherein the untruncated pine veneers are not allowed to have dead knots, blue changes, ring cracks, cracking and the like, and the eucalyptus veneers are rotten, free of holes, free of bark inclusion and less in knots;
step three: preparation of "four in one" base Material
1) Prepressing
On 7.5 + -0.1 mm thick jointless pine veneer, use E 0 Sticking 3.0-3.6mm thick eucalyptus veneers on the level environment-friendly adhesive, sticking 1.65-1.7mm thick eucalyptus veneers on the level environment-friendly adhesive, and prepressing the upper and lower parts of the knotless pine veneers in the same direction with the grains of the eucalyptus veneers in a longitudinal and transverse mode;
sticking eucalyptus veneer with thickness of 3.0-3.6mm, E 0 Single-side coating weight of 220-240g/m grade environment-friendly adhesive 2 When a 1.65-1.7mm thick eucalyptus veneer is pasted, E 0 The single-side coating weight of the grade environment-friendly adhesive is 180-200g/m 2 ；
2) Expansion joint
A plurality of expansion joints 8 with the width of about 1.5mm and the depth of about 8.2mm are arranged on the thinner eucalyptus single plate and the knotless pine single plate along the grain direction of the pine, the expansion joints 8 penetrate through the eucalyptus single plate and the knotless pine single plate on the lower surface of the knotless pine single plate, a reserved part 9 with the width of 1mm is arranged above the expansion joints 8, and the reserved part 9 is arranged on the knotless pine single plate;
3) pressing paste
Using E on the lower surface of the eucalyptus veneer on the lower surface of the jointless pine veneer 0 The eucalyptus single plates with the thickness of 2.0-2.2mm are re-pasted in the same direction by the grade environment-friendly adhesive, and are pre-pressed and then hot-pressed to form a four-in-one base material;
step four: scraping greasiness on the four-in-one base material, and preserving health for 7-10 days;
step five: 'four-in-one' base material trimming and fixed thickness sanding
The length deviation of the trimmed four-in-one base material is +/-1 mm, the width deviation is +/-0.5 mm, the straightness is less than or equal to 1mm/m, the diagonal deviation is less than or equal to 3mm, the warpage in the length direction is less than or equal to 5mm, and the warpage in the width direction is less than or equal to 3 mm;
step six: panel 1 and balance layer 3 hot pressing combination
Combining the impregnated paper surface layer and the explosion-proof paper buffer layer together by hot pressing, or combining the impregnated paper surface layer and the high-density board buffer layer (the density is more than or equal to 0.85 g/cm) with the thickness of 0.8-1.0mm 3 ) Hot pressing and combining together to form the panel 1;
hot-pressing and combining a beech back plate with the thickness of 0.45-0.55mm and a impregnated paper moisture-proof layer together to form a balance layer 3;
step seven: the upper surface and the lower surface of the four-in-one base material are respectively pressed and pasted with the panel 1 and the balance layer 3 to obtain a large plate;
step eight: curing the big plates for 7-10 days;
step nine: splitting the large plate;
step ten: milling a blank;
the blank is unlocked, the chamfer angle is 45 degrees, and the assembly gap is less than or equal to 0.20 mm;
step eleven: plain plate chamfering paint
The color of the chamfering paint is coordinated with the color of the board surface, and the chamfering paint is dried by adopting water-based paint and infrared;
step twelve: sealing wax on the plain plate;
step thirteen: and (6) packaging a finished product.
E 0 The grade environment-friendly adhesive does not contain toxic gases such as formaldehyde and the like, is healthy and environment-friendly, and comprises the following components in parts by weight:
10 parts of waterborne epoxy resin emulsion
40 parts of enzymolysis peanut protein
And 5 parts of ethanol.
E 0 The preparation method of the grade environment-friendly adhesive comprises the following steps:
at the temperature of 35-45 ℃, 5 parts of aqueous epoxy resin emulsion, 40 parts of enzymolyzed peanut protein and 5 parts of ethanol are stirred and uniformly mixed, then the mixture is cooled to 20-25 ℃, the rest 5 parts of aqueous epoxy resin emulsion are added, and the mixture is stirred and uniformly mixed to obtain the required E 0 A grade environment-friendly adhesive.
E of the present embodiment 0 The grade environment-friendly adhesive can also be obtained by market purchase.
The same as in example 1.
Example 4
As shown in fig. 1 and 4, the difference between the present embodiment and embodiment 1 is that the rib wood core composite floor board of the present embodiment includes a panel 1, a substrate 2 and a balance layer 3, which are sequentially arranged from top to bottom, the substrate 2 includes two upper eucalyptus veneer layers 4, one thick pine wood core layer 5 and two lower eucalyptus veneer layers 6, which are sequentially arranged from top to bottom, the thicknesses of the two upper eucalyptus veneer layers 4 may be the same or different, the thicknesses of the two lower eucalyptus veneer layers 6 may be the same or different, the substrate 2 is a "five-in-one" substrate, the balance layer 3 includes a beech back plate layer 7, and a moisture-proof impregnated paper layer is disposed on a side of the beech back plate layer 7 away from the lower eucalyptus veneer layers 6.
A preparation method of a spareribs wood core composite floor comprises the following steps:
the method comprises the following steps: inspection of raw materials
Inspecting the specifications, size deviations and water contents of the eucalyptus veneer and the pine veneer;
the thickness of the pine veneer is 7.5 +/-0.1 mm, the straightness is less than or equal to 1mm/m, the diagonal deviation is less than or equal to 3mm, and the density is 0.50-0.60g/cm 3 The water content is 7-10%;
step two: raw material sorting
Selecting high-quality untruncated pine veneers and eucalyptus veneers, wherein the untruncated pine veneers are not allowed to have dead knots, blue changes, ring cracks, cracking and the like, and the eucalyptus veneers are rotten, free of holes, free of bark inclusion and less in knots;
step three: preparation of a "five-in-one" substrate
1) Prepressing
E is used on the upper surface and the lower surface of the jointless pine veneer with the thickness of 7.5 +/-0.1 mm 0 Adhering 1.65-1.7mm thick eucalyptus veneers with the grade environment-friendly adhesive, wherein the textures of the eucalyptus veneers are in the same direction and are vertically and horizontally pre-pressed with the knotless pine veneers; single-side coating weight of E0-grade environment-friendly adhesive is 180- 2 ；
2) Expansion joint
A plurality of expansion joints 8 with the width of about 1.5mm and the depth of about 8.2mm are arranged on the knotless pine veneer and the eucalyptus veneer below the knotless pine veneer along the grain direction of the pine, the expansion joints 8 penetrate through the knotless pine veneer and the eucalyptus veneer below the knotless pine veneer, a reservation 9 with the width of 1mm is arranged above the expansion joints 8, and the reservation 9 is arranged on the knotless pine veneer;
3) pressing paste
E is used on the upper surface of the eucalyptus veneer on the jointless pine veneer in the same texture direction 0 The method comprises the following steps of firstly, laminating a layer of eucalyptus veneer with the thickness of 1.65-1.7mm on a level environment-friendly adhesive, laminating a layer of eucalyptus veneer with the thickness of 2.0-2.2mm on the lower surface of a lower eucalyptus veneer below an knotless pine veneer in the same grain direction, prepressing, and then hot-pressing to form a five-in-one base material;
step four: scraping greasiness on the five-in-one base material, and preserving health for 7-10 days;
step five: 'five-in-one' base material trimming and fixed thickness sanding
The length deviation of the five-in-one base material after trimming is +/-1 mm, the width deviation is +/-0.5 mm, the straightness is less than or equal to 1mm/m, the diagonal deviation is less than or equal to 3mm, the warpage in the length direction is less than or equal to 5mm, and the warpage in the width direction is less than or equal to 3 mm;
step six: panel 1 and balance layer 3 hot pressing combination
Combining the impregnated paper surface layer and the explosion-proof paper buffer layer together by hot pressing, or combining the impregnated paper surface layer and the high-density board buffer layer (the density is more than or equal to 0.85 g/cm) with the thickness of 0.8-1.0mm 3 ) Hot pressing and combining together to form the panel 1;
hot-pressing and combining a beech back plate with the thickness of 0.45-0.55mm and a impregnated paper moisture-proof layer together to form a balance layer 3;
step seven: the upper surface and the lower surface of the five-in-one base material are respectively pressed and pasted with the panel 1 and the balance layer 3 to obtain a large plate;
step eight: curing the big plates for 7-10 days;
step nine: splitting the large plate;
step ten: milling a blank;
the blank is unlocked, the chamfer angle is 45 degrees, and the assembly gap is less than or equal to 0.20 mm;
step eleven: plain plate chamfering paint
The color of the chamfering paint is coordinated with the color of the board surface, and the chamfering paint is dried by adopting water-based paint and infrared;
step twelve: sealing wax on the plain plate;
step thirteen: and (6) packaging a finished product.
The same as in example 1.
The utility model discloses the part or the structure that do not specifically describe adopt prior art or current product can, do not do here and describe repeatedly.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transformation that the content of the specification does, or directly or indirectly use in other related technical fields, all including in the same way the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a spareribs wood core laminate flooring, its characterized in that, eucalyptus veneer layer, thick pine core plate layer, a plurality of layers of eucalyptus veneer layer and balanced layer down including panel, a plurality of layers that from top to bottom set gradually, balanced layer includes beech backsheet layer, and the one side that the eucalyptus veneer layer was kept away from down to the beech backsheet layer is provided with the impregnated paper dampproof course.
2. The rib wood-core composite floor as claimed in claim 1, wherein the rib wood-core composite floor comprises a panel, an upper eucalyptus veneer layer, a thick pine wood veneer layer, a lower eucalyptus veneer layer and a balance layer sequentially arranged from top to bottom, wherein the upper eucalyptus veneer layer, the thick pine wood veneer layer and the lower eucalyptus veneer layer form a three-in-one substrate.
3. The rib wood-core composite floor as claimed in claim 1, wherein the rib wood-core composite floor comprises a panel, an upper eucalyptus veneer layer, a thick pine wood-core layer, two lower eucalyptus veneer layers and a balance layer sequentially arranged from top to bottom, wherein the upper eucalyptus veneer layer, the thick pine wood-core layer and the two lower eucalyptus veneer layers form a "four-in-one" substrate.
4. The rib wood-core composite floor as claimed in claim 1, wherein the rib wood-core composite floor comprises a panel, two upper eucalyptus veneer layers, a thick pine wood-core layer, two lower eucalyptus veneer layers and a balance layer, which are sequentially arranged from top to bottom, wherein the two upper eucalyptus veneer layers, the thick pine wood-core layer and the two lower eucalyptus veneer layers form a five-in-one substrate.
5. The rib wood-core composite floor as claimed in any one of claims 1 to 4, wherein the face sheet is a solid wood veneer.
6. The composite spareribs core floor as claimed in any one of claims 1 to 4, wherein the panel comprises an impregnated paper surface layer and an explosion-proof paper cushioning layer or a high density board cushioning layer arranged in sequence from top to bottom.
7. The rib wood-core composite floor as claimed in claim 2, wherein the pine veneer of the thick pine core layer is provided with a plurality of expansion joints along the grain direction, and the expansion joints are reserved above the expansion joints and on the pine veneer.
8. The rib wood core composite floor as claimed in claim 3 or 4, wherein a plurality of expansion joints are formed on the thick pine wood core layer and the lower eucalyptus veneer layer closely attached to the thick pine wood core layer along the pine grain direction, the expansion joints penetrate through the thick pine wood core layer and the lower eucalyptus veneer layer closely attached to the thick pine wood core layer, and a reservation is formed above the expansion joints and reserved on the pine wood veneer.
9. The composite floor board of spareribs and wood core as claimed in claim 8, wherein the expansion joint has a width of 1.5mm and a depth of 8.2 mm.
10. The spare rib wood core laminate flooring according to claim 1, wherein the thickness of the thick pine wood core layer is 7.5 ± 0.1mm, the thickness of the upper eucalyptus wood veneer layer is 3.0-3.6mm or 1.65-1.7mm, and the thickness of the lower eucalyptus wood veneer layer is 1.65-1.7mm or 2.0-2.2 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115972732A (en) * | 2022-10-20 | 2023-04-18 | 浙江云峰莫干山地板有限公司 | Impregnated paper layer compacted wood composite floor and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115972732A (en) * | 2022-10-20 | 2023-04-18 | 浙江云峰莫干山地板有限公司 | Impregnated paper layer compacted wood composite floor and preparation method thereof |
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