CN107965113A - A kind of double-layer combined floor - Google Patents
A kind of double-layer combined floor Download PDFInfo
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- CN107965113A CN107965113A CN201710945759.0A CN201710945759A CN107965113A CN 107965113 A CN107965113 A CN 107965113A CN 201710945759 A CN201710945759 A CN 201710945759A CN 107965113 A CN107965113 A CN 107965113A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/02038—Flooring or floor layers composed of a number of similar elements characterised by tongue and groove connections between neighbouring flooring elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
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- Structural Engineering (AREA)
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Abstract
The invention discloses a kind of double-layer combined floor, belong to floor field.The present invention is bonded by the panel on upper strata and the substrate of lower floor, and substrate is PVC stone-plastic plates.The upper surface of panel is irregular asperities wear-resistant surface, on asperities wear-resistant surface top covered with the coat of paint.Upper surface of base plate is equipped with substrate storage glue groove along its length.Two edges of substrate along its length are symmetrically arranged with the recess being mutually inserted and tang structure, and two edges of substrate in the width direction are equally symmetrically arranged with the recess being mutually inserted and tang structure.Wherein PVC stone-plastic plates are PVC stone molding bases, which is prepared using following steps：Step a：Raw material mix and heating；Step b：Stomata generates；Step c：Extrusion molding；Step d：It is cooled and shaped.Production cost present invention reduces double-layer combined floor, protect ecological environment, efficiently avoid double-layer combined floor come unglued, the generation of metaboly.
Description
Technical field
The present invention relates to a kind of floor, more specifically to a kind of double-layer combined floor.
Background technology
At present, Compossite solid-wood floor plate mainly with multi-layer solid wood it is compound based on, its performance is closer to pure solid wood with three layers.Three
Layer solid wooden compound floor is staggeredly composed of by more complicated technique three layers thin of solid wood board.Three layers of compound tense, compared with
Thin bottom and surface layer wood grain are longitudinal arrangement, and thicker middle level wood grain is transversely arranged, so as to neutralize the natural deformation of timber.
The superficial layer of this three-layer wood composite flooring uses good timber (such as：Oak, maple, teak are wanted, remote redwood is wanted, mountain core
Peach and walnut etc.), intermediate layer, bottom then use the preferable fast growing wood of elasticity (such as：Pine, poplar etc.), it can efficiently solve
A series of problems, such as timber floor changes the buckling deformation produced and cracking due to temperature and humidity in different environments.Three-layer real-wood
The precious timber of composite floor board superficial layer not only remains that solid wooden floor board wood grain is graceful, natural characteristic, and at utmost saves
The about resource of high-quality precious timber, and can meet that people like precious timber.But existing MULTILAYER COMPOSITE solid wood
Plate is still required for consuming substantial amounts of timber, and with increasingly rare and environmental protection the needs of timber resources, existing multilayer is answered
Close solid wooden floor board and often face the problem of production cost rises and destroys ecological environment.
In recent years, the US Department of Commerce discloses " double anti-" policy of U.S.'s multi-layer wooden floor anti-dumping to China, anti-subsidy, such as
On November 12 2010 Washington, DC time, it is anti-that Department of Commerce of U.S. announces U.S. multi-layer wooden floor product initiation anti-dumping defeated to China
Subsidy merges investigation and determines.U.S. domestic industry is required on October 21st, 2010 to Department of Commerce of U.S. and International Trade Commission application
Anti-dumping anti-subsidy is carried out to multi-layer wooden floor product native to China and merges investigation.Announced, investigated according to Department of Commerce of U.S.
Product combines the multi-layer wooden floor formed for three layers and three layers with upper layer and sandwich layer.In order to evade U.S.'s multi-layer wooden floor to China
" double anti-" policy, some floor production enterprises in China expect that production only has the compoiste wood floor of double-layer structure, due to two layers
The compoiste wood floor of structure is not belonging to the product in the range of U.S.'s multi-layer wooden floor to China " double anti-" policy, therefore double-layer structure
Compoiste wood floor is when exporting the U.S. with very big competitive advantage.But answering for double-layer structure is found in existing development process
Closing timber floor, often manufacture difficulty is higher, and easily produces and come unglued and deform.
The compoiste wood floor of double-layer structure, such as Chinese Patent Application No. are had been developed that in the prior art：
2006201259419, the applying date：On November 30th, 2006, invention and created name are：A kind of solid wooden compound floor, this application
A kind of solid wooden compound floor is disclosed, it includes dash board and substrate double-layer structure, and substrate uses finger-jointed plate, in substrate and dash board
Flexible balance bar groove is provided with upper faying face.Flexible balance bar groove is 3~6 rectangles opened up along the length direction of plate
Groove.It is equipped with and the staggered lower flexible balance bar groove of flexible balance bar groove thereon on faying face in base lower surface.Due to
Substrate uses cold spelling finger-jointed plate, and substrate is compound using powerful white latex with dash board, is green so being entirely free of formaldehyde composition
Environment-friendly products；Flexible balance bar groove reduces the internal stress of plate, in the case where making moist, being heated or is dry, deflection
It is small, reduce the possibility that floor cripling occurs, cracks.But also there are following the defects of being difficult to overcome for this application：(1), should
Solid wooden compound floor is manufactured using solid wood completely, and production cost is high and destroys ecological environment, does not meet the principle of sustainable development；
(2), the bonding force between dash board and substrate is smaller, phenomenon of coming unglued easily occurs.
In conclusion how to overcome, the compoiste wood floor production cost of existing double-layer structure is high, destroys ecological environment, and holds
The deficiency come unglued with metaboly is also easy to produce, is the technical barrier of urgent need to resolve in the prior art.
The content of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome the compoiste wood floor production cost height of existing double-layer structure, destroy ecological environment,
And easily produce the deficiency come unglued with metaboly, there is provided a kind of double-layer combined floor, reduces double-layer combined floor
Production cost, protect ecological environment, efficiently avoid double-layer combined floor come unglued, the generation of metaboly.
2. technical solution
To reach above-mentioned purpose, technical solution provided by the invention is：
The double-layer combined floor of the present invention, is bonded by the panel on upper strata and the substrate of lower floor,
The panel is solid wood board, and substrate is PVC stone-plastic plates；The upper surface of panel is irregular asperities wear-resistant surface,
On asperities wear-resistant surface top covered with the coat of paint；
The thickness of the substrate is more than the thickness of panel；Upper surface of base plate is equipped with substrate storage glue groove along its length；Substrate
Two edges along its length are symmetrically arranged with the recess being mutually inserted and tang structure, two sides of substrate in the width direction
Edge is equally symmetrically arranged with the recess being mutually inserted and tang structure；Through channel is equipped with inside substrate along its length；Substrate
Bottom be provided with anti-deformation groove, the anti-deformation groove is along substrate width direction equidistantly distributed.
As further improvement of the present invention, the substrate storage glue groove is the groove that cross section is V-arrangement, which stores up glue
Groove is arranged along the width adjacent continuous of substrate.
As further improvement of the present invention, the substrate storage glue groove is the groove that cross section is arc, which stores up
Glue groove is arranged along the width adjacent continuous of substrate.
As further improvement of the present invention, the cross section of the through channel is rectangle.
As further improvement of the present invention, the through channel has multiple, and multiple through channels are along substrate width side
To being arranged parallel to each other.
As further improvement of the present invention, the PVC stone-plastic plates are PVC stone molding bases, which uses
It is prepared by following steps：
Step a：Raw material mix and heating；
Step b：Stomata generates；
Step c：Extrusion molding；
Step d：It is cooled and shaped.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, have the advantages that：
(1) double-layer combined floor of the invention, substrate storage glue groove, the substrate are equipped with upper surface of base plate along its length
Storage glue groove is arranged along the width adjacent continuous of substrate, and being solidified in substrate storage glue groove has hot melt adhesive, the setting of substrate storage glue groove
The bond area of hot melt adhesive is expanded, substrate is contacted with hot melt adhesive more abundant, and then increase between substrate and panel
Bonding force, efficiently avoid double-layer combined floor and comes unglued the generation of phenomenon；Or set along its length in panel lower surface
There is panel storage glue groove, which arranges along the width adjacent continuous of panel, and being solidified in panel storage glue groove has hot melt
Glue, the setting of panel storage glue groove expand the bond area of hot melt adhesive, panel is contacted with hot melt adhesive more abundant, and then increase
Bonding force between substrate and panel, efficiently avoid double-layer combined floor and comes unglued the generation of phenomenon.
(2) double-layer combined floor of the invention, is equipped with multiple through channels, through channel inside substrate along its length
Cross section be rectangle, multiple through channels are arranged parallel to each other along substrate width direction；The setting of through channel can be effective
The weight of substrate is reduced, has saved cost, and cushioning effect is played when substrate causes deformation because of uneven heating, can be absorbed
Overwhelming majority deformation on substrate, eliminates the internal stress on substrate, extends its service life, efficiently avoid double-layer combined
The generation of floor deformation phenomenon.When using the present invention double-layer combined floor as heating floor in use, the bottom of substrate is straight
Connecing and contacted with heat source, the bottom of substrate and the top temperature difference of substrate are larger, are easy to cause the excessive temperature distortion in bottom of substrate, from
And influence the quality of mating formation of heating floor；Used in order to avoid the bottom of substrate on the double-layer combined floor as heating floor
Shi Fasheng gross distortions, in of the invention, the bottom of substrate is provided with anti-deformation groove, and the anti-deformation groove is along between substrate width direction etc.
Away from distribution, anti-deformation groove can deform absorptive substrate bottom caused by thermal stress to greatest extent, it is ensured that of the invention is double
Normal use of the layer composite floor as heating floor.
(3) double-layer combined floor of the invention, two edges of substrate along its length, which are symmetrically arranged with, to be mutually inserted
Recess and tang structure, two edges of substrate in the width direction be equally symmetrically arranged with the recess being mutually inserted and tang knot
Structure；By above-mentioned recess and tang structure can easily by the double-layer combined floor of polylith along its length with width phase
Mutually it is stitched together, easy to mating formation for the double-layer combined floor, improves its installation and remove efficiency.
(4) double-layer combined floor of the invention, the upper surface of panel is irregular asperities wear-resistant surface, in asperities
Play the role of protection and decoration covered with the coat of paint, the coat of paint in wear-resistant surface top；The design of asperities wear-resistant surface has two
Effect, on the one hand can increase the frictional force of panel upper surface, make one to be not easy to fall down, improve its security；On the other hand, it is concavo-convex
Line wear-resistant surface is more wear-resisting, improves the service life on the double-layer combined floor.
(5) double-layer combined floor of the invention, the substrate of lower floor replace solid wood material using PVC stone-plastic plates, reduce
The usage amount of high-quality timber, reduces the production cost on double-layer combined floor, protects ecological environment, and PVC stone-plastic plates
For renewable resource, meet the principle of sustainable development.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the double-layer combined floor of implementation 1 in the width direction；
Fig. 2 is the cross-sectional view of the double-layer combined floor of implementation 2 in the width direction；
Fig. 3 is the cross-sectional view of the double-layer combined floor of implementation 3 in the width direction；
Fig. 4 is the cross-sectional view of the double-layer combined floor of implementation 4 in the width direction.
Fig. 5 is the structure diagram of stomata generating mechanism in embodiment 5；
Fig. 6 is the partial enlarged view at A in Fig. 5；
Fig. 7 is the structure diagram of molding die mechanism in embodiment 5；
Fig. 8 is the flow chart of the manufacture method of PVC stone molding bases in embodiment 5.
Label declaration in schematic diagram：1st, substrate；101st, recess and tang structure；102nd, through channel；103rd, anti-deformation
Groove；104th, substrate storage glue groove；2nd, panel；201st, panel storage glue groove；1101st, stomata generating mechanism exports；1102nd, stomata generation machine
Structure import；1103rd, stomata generating mechanism body；1104th, snorkel；11041st, snorkel body；11042nd, end chambers；
1105th, on-off valve；1106th, air storage chamber；1107th, isolating valve；1108th, air pump；1201st, main-inlet；1202nd, secondary entrance；1203rd, every
From section；1204th, secondary outlet；1205th, primary outlet；1206th, section is merged.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1, the double-layer combined floor of the present embodiment, is bonded by the panel 2 on upper strata and the substrate 1 of lower floor,
Panel 2 is solid wood board, and substrate 1 is PVC stone-plastic plates.The upper surface of panel 2 is irregular asperities wear-resistant surface, resistance in asperities
Flour milling top is covered with the coat of paint.The thickness of substrate 1 is more than the thickness of panel 2.1 upper surface of substrate is equipped with substrate along its length
Storage glue groove 104, substrate storage glue groove 104 be cross section be V-arrangement groove, width phase of the substrate storage glue groove 104 along substrate 1
Adjacent continuous arrangement.Two edges of substrate 1 along its length are symmetrically arranged with the recess being mutually inserted and tang structure 101, base
Two edges of plate 1 in the width direction are equally symmetrically arranged with the recess being mutually inserted and tang structure 101.1 inside edge of substrate
Length direction is equipped with through channel 102, and the cross section of through channel 102 is rectangle, the through channel 102 have it is multiple, specifically
Through channel 102 has six in the present embodiment, and six through channels 102 are arranged parallel to each other along 1 width of substrate.Substrate 1
Bottom be provided with anti-deformation groove 103, the anti-deformation groove 103 is along 1 width equidistantly distributed of substrate.
PVC stone-plastic plates are also known as stone-wood floor, are largely sheet materials, are a kind of new terrestrial materials of high-quality, using day
Right mountain flour forms high density, the solid base of high microsteping net structure for main raw material(s), surface coated with macromolecule polyvinyl chloride resin,
It is process through procedures up to a hundred.PVC stone-plastic plates mainly have the following advantages,
(1) it is environmentally protective：The primary raw material for producing stone-plastic plate is natural stone-powder, through the detection of national authority department without any
Radioactive element, is environmentally protective new terrestrial ornament materials；(2) it is renewable：Stone-plastic plate is a kind of ground of reproducible utilization
Face ornament materials, has huge meaning for protecting national resource with ecological environment；(3) high resiliency and superpower shock resistance：Stone
Mould plate quality is softer so elastic have good elasticity to recover under the impact of weight very well, while stone plastic floor is with very
Strong impact resistance, being destroyed for heavy impact has very strong elasticity to recover, and will not cause to damage；(4) fire protection flame retarding：Stone-plastic plate
It itself will not burn and burning can be prevented, up-to-standard stone-plastic plate prevents fires index up to B1 grades, its fire protecting performance is only second to
Stone material；(5) it is waterproof and dampproof：Stone-plastic plate and water is not afraid of water without affinity, so long as not would not be damaged by immersion for a long time, and
It will not go mouldy because humidity is big.
The double-layer combined floor of the present embodiment, the substrate 1 of lower floor replace solid wood material using PVC stone-plastic plates, reduce
The usage amount of high-quality timber, reduces the production cost on double-layer combined floor, protects ecological environment, and PVC stone-plastic plates
For renewable resource, meet the principle of sustainable development.
The double-layer combined floor of the present embodiment, the panel 2 on upper strata and the substrate 1 of lower floor are bonded in one by hot melt adhesive
Rise, but find in actual use, the double-layer combined floor is because only there was only double-layer structure, the entirety shape in uneven heating
Variable is larger, therefore the hot melt adhesive be easy to causeing between upper strata panel 2 and underlying substrate 1 on contact surface comes off, and causes to come unglued existing
As；And upper strata panel 2 is solid wood board, underlying substrate 1 is PVC stone-plastic plates, and solid wood board and PVC stone-plastic plates are during expanded by heating
Thermal coefficient of expansion is different, adds the double-layer combined floor and comes unglued the possibility of phenomenon.Based on above-mentioned consideration, this implementation
Example double-layer combined floor, on substrate 1 surface be equipped with substrate storage glue groove 104 along its length, 104 edge of substrate storage glue groove
The width adjacent continuous arrangement of substrate 1, the interior solidification of substrate storage glue groove 104 have hot melt adhesive, and the setting of substrate storage glue groove 104 is expanded
The big bond area of hot melt adhesive, makes substrate 1 be contacted with hot melt adhesive more abundant, and then increase between substrate 1 and panel 2
Bonding force, efficiently avoid double-layer combined floor and comes unglued the generation of phenomenon.
The double-layer combined floor of the present embodiment, is equipped with multiple through channels 102 inside substrate 1 along its length, penetrates through
The cross section of passage 102 is rectangle, and multiple through channels 102 are arranged parallel to each other along 1 width of substrate；Through channel 102
Setting can effectively reduce the weight of substrate 1, saved cost, and play when substrate 1 causes deformation because of uneven heating
Cushioning effect, overwhelming majority deformation that can be in absorptive substrate 1 eliminate the internal stress on substrate 1, extend its service life, have
Avoid to effect the generation of double-layer combined floor deformation phenomenon.When using the double-layer combined floor of the present embodiment as ground thermally
For plate in use, the bottom of substrate 1 is directly contacted with heat source, the bottom of substrate 1 and the top temperature difference of substrate 1 are larger, are easy to cause
The excessive temperature distortion in bottom of substrate 1, so as to influence the quality of mating formation of heating floor；In order to avoid substrate 1 bottom in this pair
Gross distortion occurs when being used as heating floor for layer composite floor, and in the present embodiment, the bottom of substrate 1 is provided with anti-deformation
Groove 103, the anti-deformation groove 103 can absorb base to greatest extent along 1 width equidistantly distributed of substrate, anti-deformation groove 103
1 bottom of plate deforms caused by thermal stress, it is ensured that the double-layer combined floor of the present embodiment makes as the normal of heating floor
With.
The double-layer combined floor of the present embodiment, two edges of substrate 1 along its length, which are symmetrically arranged with, to be mutually inserted
Recess and tang structure 101, two edges of substrate 1 in the width direction be equally symmetrically arranged with the recess that is mutually inserted and convex
Mouth structure 101；By above-mentioned recess and tang structure 101 can easily by the double-layer combined floor of polylith along its length and
Width is mutually stitched together, and easy to mating formation for the double-layer combined floor, improves its installation and removes efficiency.
The double-layer combined floor of the present embodiment, the upper surface of panel 2 is irregular asperities wear-resistant surface, in asperities
Play the role of protection and decoration covered with the coat of paint, the coat of paint in wear-resistant surface top；The design of asperities wear-resistant surface has two
Effect, on the one hand can increase the frictional force of 2 upper surface of panel, make one to be not easy to fall down, improve its security；On the other hand, it is recessed
Burr wear-resistant surface is more wear-resisting, improves the service life on the double-layer combined floor.
Hot melt adhesive (the English name used in the present embodiment：Hot Glue) it is a kind of adhesive of plasticity, in a constant temperature
Its physical state changes and changes with temperature in the range of degree, and chemical characteristic is constant, its is nonpoisonous and tasteless, does not contain formaldehyde composition,
Belong to environmental type chemical products.Because its product is solid in itself, easy to packing, transporting, storing, solvent-free, pollution-free, nontoxic
Type；And simple production process, the advantages that high added value, bonding strength is big, speed is fast and enjoy favor.
Embodiment 2
With reference to Fig. 2, the double-layer combined floor of the present embodiment, is bonded by the panel 2 on upper strata and the substrate 1 of lower floor,
Panel 2 is solid wood board, and substrate 1 is PVC stone-plastic plates.The upper surface of panel 2 is irregular asperities wear-resistant surface, resistance in asperities
Flour milling top is covered with the coat of paint.The thickness of substrate 1 is more than the thickness of panel 2.1 upper surface of substrate is equipped with substrate along its length
Storage glue groove 104, substrate storage glue groove 104 be cross section be arc groove, the width of the substrate storage glue groove 104 along substrate 1
Adjacent continuous arranges.Two edges of substrate 1 along its length are symmetrically arranged with the recess being mutually inserted and tang structure 101,
Two edges of substrate 1 in the width direction are equally symmetrically arranged with the recess being mutually inserted and tang structure 101.Inside substrate 1
Through channel 102 is equipped with along its length, and the cross section of through channel 102 is rectangle, and the through channel 102 has multiple, tool
Through channel 102 has six in body the present embodiment, and six through channels 102 are arranged parallel to each other along 1 width of substrate.Substrate
1 bottom is provided with anti-deformation groove 103, and the anti-deformation groove 103 is along 1 width equidistantly distributed of substrate.
Embodiment 3
With reference to Fig. 3, the double-layer combined floor of the present embodiment, is bonded by the panel 2 on upper strata and the substrate 1 of lower floor,
Panel 2 is solid wood board, and substrate 1 is PVC stone-plastic plates.The upper surface of panel 2 is irregular asperities wear-resistant surface, resistance in asperities
Flour milling top is covered with the coat of paint.2 lower surface of panel is equipped with panel storage glue groove 201 along its length, and panel storage glue groove 201 is horizontal
Section is the groove of V-arrangement, which arranges along the width adjacent continuous of panel 2.The thickness of substrate 1 is more than
The thickness of panel 2.Two edges of substrate 1 along its length are symmetrically arranged with the recess being mutually inserted and tang structure 101, base
Two edges of plate 1 in the width direction are equally symmetrically arranged with the recess being mutually inserted and tang structure 101.1 inside edge of substrate
Length direction is equipped with through channel 102, and the cross section of through channel 102 is rectangle, the through channel 102 have it is multiple, specifically
Through channel 102 has six in the present embodiment, and six through channels 102 are arranged parallel to each other along 1 width of substrate.Substrate 1
Bottom be provided with anti-deformation groove 103, the anti-deformation groove 103 is along 1 width equidistantly distributed of substrate.
The double-layer combined floor of the present embodiment, panel storage glue groove 201 is equipped with 2 lower surface of panel along its length, should
Panel storage glue groove 201 is arranged along the width adjacent continuous of panel 2, and being solidified in panel storage glue groove 201 has hot melt adhesive, panel storage
The setting of glue groove 201 expands the bond area of hot melt adhesive, panel 2 is contacted with hot melt adhesive more abundant, and then increase base
Bonding force between plate 1 and panel 2, efficiently avoid double-layer combined floor and comes unglued the generation of phenomenon.
Embodiment 4
With reference to Fig. 4, the double-layer combined floor of the present embodiment, is bonded by the panel 2 on upper strata and the substrate 1 of lower floor,
Panel 2 is solid wood board, and substrate 1 is PVC stone-plastic plates.The upper surface of panel 2 is irregular asperities wear-resistant surface, resistance in asperities
Flour milling top is covered with the coat of paint.2 lower surface of panel is equipped with panel storage glue groove 201 along its length, and panel storage glue groove 201 is horizontal
Section is the groove of arc, which arranges along the width adjacent continuous of panel 2.The thickness of substrate 1 is more than
The thickness of panel 2.Two edges of substrate 1 along its length are symmetrically arranged with the recess being mutually inserted and tang structure 101, base
Two edges of plate 1 in the width direction are equally symmetrically arranged with the recess being mutually inserted and tang structure 101.1 inside edge of substrate
Length direction is equipped with through channel 102, and the cross section of through channel 102 is rectangle, the through channel 102 have it is multiple, specifically
Through channel 102 has six in the present embodiment, and six through channels 102 are arranged parallel to each other along 1 width of substrate.Substrate 1
Bottom be provided with anti-deformation groove 103, the anti-deformation groove 103 is along 1 width equidistantly distributed of substrate.
Embodiment 5
The double-layer combined floor of the present embodiment, its is substantially the same manner as Example 1, further：
With reference to Fig. 5-8, the manufacture method of the PVC stone molding bases of the present embodiment, comprises the following steps：
Step a：Raw material mix and heating；
In step a, the raw material of PVC stone molding bases and additive are added into batch mixer by formula rate, in batch mixer
It is mixed and heating, fusing obtains primary molten liquid；
Step b：Stomata generates；
In step b, the primary molten liquid prepared in step a is drawn into a-road-through air passing hole generating mechanism, is obtained secondary molten
Melt liquid；
The nitrogen that 0.3~3MPa (3MPa is taken in the present embodiment) is filled with air storage chamber 1106 is controlled in step b；
In step b, adjust the frequency per second that operation is opened and closed of on-off valve 1105 so that prepare secondary molten liquid its
Contain the stomata of 15%~25% (25% is taken in the present embodiment) volume in monomer volume；
Step c：Extrusion molding；
In step c, the secondary molten liquid prepared in step b is passed through main extruder, main extruder melts the secondary in it
Melt the main-inlet 1201 that liquid is extruded and is pressed into molding die mechanism；
The primary molten liquid prepared in step a is drawn and is passed through time extruder all the way, secondary extruder melts the primary in it
Melt the secondary entrance 1202 that liquid is extruded and is pressed into molding die mechanism；
Step d：It is cooled and shaped.
In step d, in the 1206 outside spraying cooling liquid of fusion section of molding die mechanism, PVC stone molding base finished products are obtained.
In the present embodiment, stomata generating mechanism includes stomata generating mechanism body 1103, the stomata generating mechanism body
1103 be a cylindrical channel, and one end of stomata generating mechanism body 1103 is stomata generating mechanism import 1102, and stomata generates
The other end of mechanism body 1103 is stomata generating mechanism outlet 1101；If stomata generating mechanism along its length on be provided with
A dry group snorkel 1104, every group of snorkel 1104 include the snorkel 1104 inside several insertion stomata generating mechanism, every group
Circumferential equidistantly distributed of all snorkels 1104 along stomata generating mechanism on snorkel 1104, and same group of snorkel
The end of 1104 its all snorkel 1104 being inserted into stomata generating mechanism is located at using stomata generating mechanism central axes in
On the same concentric circles of the heart；Along its increasing diameter of concentric circles on the length direction of stomata generating mechanism or successively decrease；It is all logical
The end that tracheae 1104 is located at outside stomata generating mechanism, which is collected, to be communicated on inlet manifold, and inlet manifold passes through on-off valve 1105
Connected with air storage chamber 1106；Air storage chamber 1106 is connected by isolating valve 1107 with air pump 1108；Wherein：Snorkel 1104 includes logical
Tracheae body 11041 and end chambers 11042, end chambers 11042 are to be connected to the spherical shell of 11041 end of snorkel body,
Through hole is evenly equipped with the spherical shell, end chambers 11042 are located inside stomata generating mechanism.Wherein：The aperture of through hole is on spherical shell
0.10~0.25mm；On-off valve 1105 and isolating valve 1107 are electric opening and closing valve；Pressure gauge is installed in air storage chamber 1106.
In the present embodiment, molding die mechanism includes distance piece 1203 and fusion section 1206；Distance piece 1203 includes shaping
Mould and the surface mold for covering on both sides above and below molding die respectively, molding die are used to add the secondary molten liquid squeezed into it
Into the intermediate layer of PVC stone molding bases, surface mold is used to the primary molten liquid squeezed into it being processed into PVC stone molding bases work
Upper and lower superficial layer；The import of molding die is main-inlet 1201, and the outlet of molding die is primary outlet 1205；Surface mold
Import is time entrance 1202, and the outlet of surface mold is time outlet 1204；The outer edge of secondary outlet 1204 is equipped with to distance piece
The flanging of 1203 centerline direction deviations, the import of fusion section 1206 are connected with flanging.Wherein, on the outer edge of secondary outlet 1204
The angle of the flanging being equipped with and 1203 center line of distance piece is 3 °~8 ° (8 ° are taken in the present embodiment).
In the present embodiment, the PVC stones that uniformly distributed a large amount of Minute pores in intermediate layer can be obtained by stomata generating mechanism are moulded
Base material finished product, using this kind of new technique, under the premise of can having certain mechanical strength ensureing PVC stones molding base, has
Effect reduces the usage amount of raw material so that the manufacturing cost of PVC stone molding bases is greatly reduced, and improves the market of PVC stone plastic floors
Competitiveness；Meanwhile uniformly distributed a large amount of Minute pores can improve sound insulation and the heat-insulating property of PVC stone molding bases, warp in intermediate layer
Test, compared to traditional PVC stone molding bases, its sound insulation of PVC stones molding base and heat-insulating property prepared in the present embodiment is equal
Lifting more than 20%.In specific the present embodiment, the primary molten liquid prepared in step a is drawn into a-road-through air passing hole generation machine
Structure, primary molten liquid from stomata generating mechanism import 1102 into blowhole generating mechanism body 1103 in, wherein controlling on-off valve
1105 are opened and closed operation with certain frequency, and on-off valve 1105, which is opened and closed once, has nitrogen from the through hole in end chambers 11042
Spray, countless Minute pores are formed in primary molten liquid, and multiple end chambers 11042 are distributed on the interior of stomata generating mechanism
Portion, therefore primary molten liquid is by forming the internal secondary molten liquid for being evenly distributed with countless Minute pores after stomata generating mechanism；Storage
The pressure gauge of pressure in measurement air storage chamber 1106 in real time is installed, when the pressure in discovery air storage chamber 1106 is less than in gas chamber 1106
During setting value, isolating valve 1107 can be automatically turned on and fill nitrogen into air storage chamber 1106 using air pump 1108, to maintain air storage chamber
Certain pressure in 1106, so as to be impacted nitrogen after on-off valve 1105 is opened every time using the hyperbar in air storage chamber 1106
It is passed through inside stomata generating mechanism, is conducive to a large amount of formation of Minute pores；Wherein, can be per second by adjusting on-off valve 1105
It is opened and closed frequency, the size of air pressure in air storage chamber 1106, the size of air vent aperture, quantity etc. are micro- to control in end chambers 11042
The size and quantity of formation of spilehole, it is small to control by adjusting the opening and closing frequency per second of on-off valve 1105 in the present embodiment
The size and number of stomata, test of many times prove, control the volume of all Minute pores in monomer volume secondary molten liquid to occupy
15%~25% space, can reduce production cost and ensure to find balance between the certain mechanical strength of PVC stone molding bases
Point, realizes that comprehensive benefit maximizes.(in the present embodiment, behaviour is opened and closed with frequency 10-60 times per second in control on-off valve 1105
Make.)
In the present embodiment, in order to ensure PVC stone molding base finished products its upper and lower surface finally prepared is smooth shape,
To adapt to actual use, the intermediate layer of PVC stone molding bases and upper and lower superficial layer are prepared by molding die mechanism respectively, so
Intermediate layer and upper and lower superficial layer effective integration are formed into PVC stone molding base finished products afterwards；Wherein, the secondary prepared in step b is melted
Melt liquid and be passed through main extruder, the secondary molten liquid in it is extruded and is pressed into the main-inlet of molding die mechanism by main extruder
1201, it is made into intermediate layer in molding die, synchronous draw the primary molten liquid prepared in step a is passed through time extrusion all the way
Machine, the primary molten liquid in it is extruded and is pressed into the secondary entrance 1202 of molding die mechanism by secondary extruder, in surface mold
It is made into upper and lower superficial layer, wherein molding die can use the mould used in tradition PVC stone molding base preparation process, for
The PVC stone molding bases of different types of structure are produced, replace corresponding molding die；Surface mold is by primary molten liquid system
Into the mould of plane；At the same time, since the both sides up and down of molding die are covered with surface mold respectively, in distance piece 1203,
The forming process of intermediate layer and upper and lower superficial layer separates, therefore, in order to ensure intermediate layer and upper and lower superficial layer are being melted
Close and be effectively merged in section 1206, is equipped with the outer edge of secondary outlet 1204 inclined to 1203 centerline direction of distance piece
The flanging of folding, can be pushed upper and lower superficial layer to the upper and lower surface in intermediate layer by the flanging, while coordinate fusion section 1206
Outside spraying cooling effect, is conducive to intermediate layer and upper and lower superficial layer and is effectively merged in fusion section 1206；The present embodiment
In, control time the angle of flanging that the outer edge of outlet 1204 is equipped with and 1203 center line of distance piece be 3 °~8 ° (angle is set
Meter exceedes this scope for promoting the fusion between intermediate layer and upper and lower superficial layer ineffective), in being effectively promoted
Fusion between interbed and upper and lower superficial layer.
Embodiment 6
The manufacture method of the PVC stone molding bases of the present embodiment, its step is substantially the same manner as Example 5, its difference exists
In：The nitrogen that 0.3Pa is filled with air storage chamber 1106 is controlled in step b；In step b, on-off valve 1105 is per second is opened for adjustment
The frequency of closed operation, so that the stomata containing 15% volume in the secondary molten liquid monomer volume prepared；Secondary outlet 1204
The flanging that is equipped with of outer edge and the angle of 1203 center line of distance piece be 3 °.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (6)
1. a kind of double-layer combined floor, is bonded by the panel (2) on upper strata and the substrate (1) of lower floor, it is characterised in that：
The panel (2) is solid wood board, and substrate (1) is PVC stone-plastic plates；The upper surface of panel (2) is resistance to for irregular asperities
Flour milling, on asperities wear-resistant surface top covered with the coat of paint；
The thickness of the substrate (1) is more than the thickness of panel (2)；Substrate (1) upper surface is equipped with substrate storage glue groove along its length
(104)；Two edges of substrate (1) along its length are symmetrically arranged with the recess being mutually inserted and tang structure (101), substrate
(1) two edges in the width direction are equally symmetrically arranged with the recess being mutually inserted and tang structure (101)；In substrate (1)
Portion is equipped with through channel (102) along its length；The bottom of substrate (1) is provided with anti-deformation groove (103), the anti-deformation groove
(103) along substrate (1) width equidistantly distributed.
2. double-layer combined floor according to claim 1, it is characterised in that：The substrate storage glue groove (104) is transversal
Face is the groove of V-arrangement, which arranges along the width adjacent continuous of substrate (1).
3. double-layer combined floor according to claim 1, it is characterised in that：The substrate storage glue groove (104) is transversal
Face is the groove of arc, which arranges along the width adjacent continuous of substrate (1).
4. double-layer combined floor according to claim 2, it is characterised in that：The cross section of the through channel (102)
For rectangle.
5. the double-layer combined floor according to claim 1 or 4, it is characterised in that：The through channel (102) has more
A, multiple through channels (102) are arranged parallel to each other along substrate (1) width.
6. double-layer combined floor according to claim 5, it is characterised in that the PVC stone-plastic plates mould base for PVC stones
Material, the PVC stones molding base are prepared using following steps：
Step a：Raw material mix and heating；
Step b：Stomata generates；
Step c：Extrusion molding；
Step d：It is cooled and shaped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945759.0A CN107965113B (en) | 2017-10-11 | 2017-10-11 | A kind of double-layer combined floor |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199259A (en) * | 2015-09-02 | 2015-12-30 | 南召县磊鑫钙业新型材料科技有限公司 | Stone-wood floor and production technology and laying method thereof |
| CN205531184U (en) * | 2016-04-21 | 2016-08-31 | 安徽以诺木塑板材科技有限公司 | Double -deck combined type floor |
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2017
- 2017-10-11 CN CN201710945759.0A patent/CN107965113B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199259A (en) * | 2015-09-02 | 2015-12-30 | 南召县磊鑫钙业新型材料科技有限公司 | Stone-wood floor and production technology and laying method thereof |
| CN205531184U (en) * | 2016-04-21 | 2016-08-31 | 安徽以诺木塑板材科技有限公司 | Double -deck combined type floor |
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| CN107965113B (en) | 2019-07-19 |
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