CN111119442A - Floor capable of preventing water accumulation and foaming - Google Patents
Floor capable of preventing water accumulation and foaming Download PDFInfo
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- CN111119442A CN111119442A CN202010068942.9A CN202010068942A CN111119442A CN 111119442 A CN111119442 A CN 111119442A CN 202010068942 A CN202010068942 A CN 202010068942A CN 111119442 A CN111119442 A CN 111119442A
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- floor
- foaming
- surface layer
- die
- exposed
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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
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/24—Making multilayered articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Floor Finish (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a water accumulation preventing foaming floor, and belongs to the technical field of foaming floors. The floor comprises a foaming matrix which is formed by resin and has a blocky structure and a hard surface layer which is integrally connected with the foaming matrix and covers the foaming matrix; the foaming matrix is formed by integrally connecting a surface plate and a plurality of supporting units; each supporting unit comprises a supporting plate and a pressure-bearing bottom plate which are integrally connected, the supporting plate is vertically arranged, and the pressure-bearing bottom plate is horizontally arranged; and a vacant area is formed between the adjacent supporting units, so that the lower bottom surface of the floor is discontinuous. The main body part of the floor is designed into a supporting structure similar to a pier, so that the main body part of the floor has the advantages of light weight and high strength, and has the advantage of no water accumulation when being used outdoors; the main body of the floor is prepared by a PVC foaming process, so that the weight of the floor is further reduced on the premise that the strength of the floor is hardly changed.
Description
Technical Field
The invention relates to a water accumulation preventing foaming floor, and belongs to the technical field of foaming floors.
Background
Due to the facts that the wood floor is easy to absorb water, the dimensional stability is changed after water absorption, the wood floor is easy to warp after being dried in the sun or dried in the air, and the like, the use of the wood floor in the open air is very limited. And therefore outdoor floors are usually dominated by wood-plastic floors.
Wood-plastic floors also suffer from various problems when used outdoors. For example, the wood-plastic floor has a larger density, and if the wood-plastic floor is made into a solid plate, the overall mass of the floor is larger, and the wood-plastic floor also has more materials, is relatively heavy and has high cost. If the hollow structure is manufactured, when the outdoor water-saving device is used outdoors, water is easy to accumulate in the hollow structure, so that various problems are caused.
Disclosure of Invention
The invention aims to solve the problems and provides a floor capable of preventing water accumulation foaming. The core layer of the floor is a foaming layer, and has the advantage of light weight; the foaming layer forms a supporting unit and has the characteristic of water accumulation prevention.
The technical scheme for solving the above purpose of the invention is as follows:
the floor comprises a foaming matrix which is formed by resin and has a blocky structure and a hard surface layer which is integrally connected with the foaming matrix and covers the foaming matrix; the foaming matrix is formed by integrally connecting a surface plate and a plurality of supporting units; each supporting unit comprises a supporting plate and a pressure-bearing bottom plate which are integrally connected, the supporting plate is vertically arranged, and the pressure-bearing bottom plate is horizontally arranged; and a vacant area is formed between the adjacent supporting units, so that the lower bottom surface of the floor is discontinuous.
Preferably, the hard surface layer includes a first exposed surface formed of a first color resin substantially parallel to the upper surface of the foamed base, and a second exposed surface formed of a second color resin; the distance from the second exposed surface to the surface of the foaming matrix covered by the foaming matrix is smaller than that from the first exposed surface; the first exposed surface is composed of a plurality of exposed units which are approximately positioned on the same plane, the second exposed surface is composed of a plurality of sinking units, and the exposed units and the sinking units are arranged in a staggered mode; the hard surface layer also comprises a connecting unit positioned between the adjacent exposed units and the sunken units, wherein the connecting unit comprises a connecting substrate which is formed by first color resin and is integrally connected with the first exposed surface and a connecting surface material which is covered on the connecting substrate, is formed by second color resin and is integrally connected with the second exposed surface; the hard surface layer also comprises a base layer which is formed by first color resin, is integrally connected with the connecting substrate and is covered by the second exposed surface; the first color resin is different in color from the second color resin.
Preferably, the thickness of the first exposed surface is not less than 0.1mm, and the thickness of the second exposed surface is not less than 0.05 mm.
Preferably, the method for preparing the floor capable of preventing foaming by accumulated water comprises the following steps:
a. adding raw materials and additives thereof which form a foaming matrix into a main extruder, melting and plasticizing the raw materials and the additives thereof in the main extruder, feeding the raw materials and the additives into a main runner of a mold, extruding the raw materials and the additives from a die lip of the main runner, and feeding the raw materials and the additives into a foaming cavity of the mold for foaming to form the foaming matrix;
b. adding raw materials and additives of the first color resin into a first auxiliary extruder, melting the raw materials and the additives in the first auxiliary extruder to form a molten material, diffusing the molten material through a first auxiliary runner of a mold, flowing out from an outlet of the first auxiliary runner, entering a first casting space of the mold, and coating a foaming matrix in the first casting space to form a primary coating material;
c. adding raw materials and additives thereof which form second color resin into a second auxiliary extruder, melting the raw materials and the additives thereof in the second auxiliary extruder to form molten materials, diffusing the molten materials through a second auxiliary runner of the die, flowing out from an outlet of the second auxiliary runner, entering a second casting space of the die, coating the primary coating material in the second casting space to form a secondary coating material, and extruding from a die orifice of the die to form a floor precursor structure; the floor precursor structure has a foamed matrix, a first skin layer and a second skin layer, the second skin layer being disposed between the first skin layer and the foamed matrix;
d. cooling and forming the floor front body structure;
e. heating the surface of the cooled and formed floor precursor structure to soften at least the first surface layer;
f. pressing partial area of the first surface layer below the surface of the second surface layer through the embossing treatment of the embossing roller, so that the first surface layer and the second surface layer jointly represent the previous state of the wood texture;
g. polishing to enable the first surface layer which is not pressed below the surface of the second surface layer to be abraded, and enabling the corresponding part of the abraded area to present the second surface layer; so that the pre-state of the wood grain is transformed into the wood grain.
Preferably, in the step a, the foaming cavity of the mold is matched with the cross-sectional shape of the floor; the die cavity space distributed by the material flow corresponding to the surface plate is smaller than the die cavity space distributed by the material flow corresponding to the supporting plate and the pressure-bearing bottom plate.
Preferably, in step a, a baffle is positioned within the mold cavity such that the flow rate of the stream corresponding to the skin is restricted.
Preferably, in step d, the floor precursor structure is shaped by a shaping mold during all or part of the cooling process to prevent warping.
Preferably, in the step f, when the embossing roller is used for embossing, the workpiece is lined by using a lining die; the lining die is provided with a plurality of bulges matched with the shapes of the vacant areas of the workpieces.
Preferably, the foaming matrix is made of PVC foaming material, and the hard surface layer is made of ASA non-foaming material.
Preferably, in the step e, the surface is heated by a tunnel oven, the temperature in the tunnel oven is controlled to be 150-250 ℃, the time is controlled to be 3-20 s, and the temperature of the first surface layer is controlled to be within 250 ℃.
Preferably, in the embossing treatment of the embossing roll in the step e, the embossing roll is a cold roll.
The invention has the following beneficial effects:
1. the main body part of the floor is designed into a supporting structure similar to a pier, so that the main body part of the floor has the advantages of light weight and high strength, and has the advantage of no water accumulation when being used outdoors;
2. the main body part of the floor is prepared by a PVC foaming process, so that the weight of the floor is further reduced on the premise that the strength of the floor is hardly changed;
3. according to the invention, through a double-layer surface process, the surfaces of two layers are co-extruded on a foaming layer, and the front state of wood grains is pressed on the surfaces of the two layers through an embossing roller; after the embossing roller treatment, forming areas with different depths on the surface of the floor, and stamping the first surface layer of a partial area below the second surface layer; the first surface layer can be polished to remove, and the part of the first surface layer pressed below the surface of the second surface layer can not be removed when the first surface layer is polished, so that the second surface layer and part of the first surface layer are left through controllable polishing, and wood grains are formed together; the wood grain formed by this method is de-expressed from multiple layers, such as: the wood grain is three-dimensional (the depth of grains), chromatic aberration, light and shade and the like, the expression technique is rich, and the vivid effect of the wood grains is realized; and can also realize various wood textures, such as various rare woods, by adjusting the stereo, color difference and brightness;
4. because of the asymmetric structure, the upper surface of the foaming matrix has a smaller specific surface, the lower surface of the foaming matrix has a larger specific surface, and the die lip of the die is also provided with a corresponding structure, so that during foaming and molding, in the process of melt flowing, the melt flow rate of the upper part is high, the melt flow rate of the lower part is low, the upper part of the foaming matrix is rapidly molded, the lower part of the foaming matrix is slowly molded or even cannot be molded, and compared with a PE raw material PVC foaming, the flowability of the raw material is better, and the difference of the flowability of the melts of the upper part and the lower part is more obvious; when the flow channel structure solves the problem, on one hand, the shape of the flow channel is changed, so that the die cavity space distributed by the material flow corresponding to the surface plate is smaller than the die cavity space distributed by the material flow corresponding to the supporting plate and the pressure-bearing bottom plate; on the other hand, the flow rate of the material flow corresponding to the surface plate is limited by arranging the flow blocking plate in the die cavity; thereby leading the PVC molten material of the upper part and the lower part to be capable of leading the flow rate to be consistent when passing through the die lip with an asymmetric structure;
5. the temperature of the product after being extruded from the die is higher, and due to the asymmetric structure, the heat dissipation of the upper surface and the lower surface are obviously different, so that the product can deform in the cooling process, and even curl if not controlled; when the invention solves the problem, two schemes are adopted, one scheme is that the floor precursor structure is shaped by a shaping die, namely the shaping die is adopted to shape the floor precursor structure in the whole or partial cooling process so as to prevent the floor precursor structure from warping; the other scheme is to adopt a temperature compensation method, namely heating the lower part with better heat dissipation effect, and simultaneously slowing down the cooling speed to reduce the thermal stress.
6. Compared with PE materials, the main body part made of PVC foaming materials has larger difference of heat dissipation of the upper surface and the lower surface when the temperature is reduced; and because the foamed matrix has better heat-insulating property compared with the non-foamed matrix of PE or other materials, the difference of the heat dissipation of the upper and lower surfaces is longer in the dimension of time; therefore, the cooling interval for installing the shaping mold in the cooling process needs to be lengthened and is set to be at least 3 m.
7. Compared with the foaming matrix with a flat plate structure, the problem of uneven polishing degree often occurs when polishing treatment in the step g is carried out; through analysis, the inventor believes that the special structure and the polishing mode of the foaming matrix are caused by the foaming matrix; the polishing is carried out on the basis of a horizontal operating platform, a height limiting assembly and a polishing roller, the positions of the polishing roller and the horizontal operating platform are relatively constant, and the limiting assembly restrains a workpiece during polishing; the principle is that a workpiece is flatly placed on a horizontal operating platform and passes through the limiting assembly, and meanwhile, the grinding roller grinds the surface of the workpiece; the relatively constant positional relationship of the grinding roller to the horizontal table is adjustable depending on the degree of grinding desired. The structure of the invention is an asymmetric structure, the lower half part of the structure is a pier-shaped structure, the supporting force of the pier-shaped structure to the upper half part is uneven, only part of the upper half part is supported, because the upper half part is a whole, the rest part is indirectly supported, and the characteristic is that the grinding degree of each part of the upper surface is uneven in the grinding process; when the lining die is used for solving the problem, the lining die is matched with a workpiece, so that the upper half part is subjected to uniform supporting force, and the upper surface has the advantage of high grinding degree consistency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is an enlarged view of region B of FIG. 1;
FIG. 4 is a schematic view of a floor precursor structure of the present invention;
FIG. 5 is a schematic view of the mold of the present invention;
FIG. 6 is a schematic structural view of a first co-extrusion flow channel plate of the present invention;
FIG. 7 is a schematic structural view of a second co-extruded runner plate of the present invention;
in the figure, 10-main runner, 20-die lip, 30-foaming chamber, 40-first auxiliary runner, 50-first casting space, 60-second auxiliary runner, 70-second casting space, 80-die orifice, 90-baffle;
100-a foaming matrix, 110-a surface layer plate, 120-a supporting unit, 121-a supporting plate, 122-a pressure-bearing bottom plate and 130-an empty area;
200-a hard surface layer, 201-a first exposed surface, 202-a second exposed surface, 203-a base layer, 210-a connection substrate, 220-a connection surface material;
201 '-first skin layer, 202' -second skin layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a floor panel includes a foam base 100 formed of resin and having a block structure, and a hard skin 200 integrally connected to the foam base and covering the foam base 100. The foam base 100 is formed by integrally connecting a skin sheet 110 and a plurality of support units 120. The foaming matrix 100 is made of PVC foaming material, and the hard surface layer 200 is made of ASA non-foaming material.
As shown in fig. 2, each support unit includes a support plate 121 and a pressure-bearing bottom plate 122 integrally connected, the support plate 121 is vertically disposed, and the pressure-bearing bottom plate 122 is horizontally disposed.
As shown in fig. 1, empty spaces 130 are formed between adjacent supporting units 120 such that the lower surface of the floor is discontinuous.
As shown in fig. 3, the hard skin 200 includes a first exposed surface 201 formed of a first color resin substantially parallel to the upper surface of the foamed base, and a second exposed surface 202 formed of a second color resin; the second exposed face 202 is spaced less from the surface of the foamed substrate covered by it than the first exposed face 201; moreover, the first exposed surface 201 is composed of a plurality of exposed units which are substantially in the same plane, the second exposed surface 202 is composed of a plurality of sunken units, and the exposed units and the sunken units are arranged in a staggered manner; the hard surface layer 200 further includes a connection unit between adjacent ones of the exposed units and the depressed units, the connection unit including a connection substrate 210 formed of a first color resin and integrally connected to the first exposed surface 201, and a connection surface member 220 covered on the connection substrate 210 formed of a second color resin and integrally connected to the second exposed surface; the hard surface layer further includes a base layer 203 formed of a first color resin, integrally connected to the connection base member 210 and covered with the second exposed surface 202; the first color resin is different in color from the second color resin.
In this embodiment, the thickness of the first exposed surface 201 is 0.3mm, and the thickness of the second exposed surface 202 is 0.1 mm.
Referring to fig. 4-6, the method for manufacturing the floor comprises the following steps:
a. adding raw materials and additives thereof which form a foaming matrix into a main extruder, melting and plasticizing the raw materials and the additives thereof in the main extruder, entering a main runner 10 of a mold, extruding the raw materials and the additives from a die lip 20 of the main runner, entering a foaming cavity 30 of the mold for foaming, and further forming the foaming matrix 100; in this step, the foaming cavity 30 of the mold is matched with the cross-sectional shape of the floor; the die cavity space distributed by the material flow corresponding to the surface plate 110 is smaller than the die cavity space distributed by the material flow corresponding to the support plate 121 and the pressure-bearing bottom plate 122; in this step, a flow blocking plate 90 is disposed in the mold cavity so that the flow rate of the material flow corresponding to the skin plate 110 is limited;
b. adding raw materials and additives thereof which form the first color resin into a first auxiliary extruder, melting the raw materials and the additives thereof in the first auxiliary extruder to form a molten material, diffusing the molten material through a first auxiliary runner 40 of a mold, flowing out of an outlet of the first auxiliary runner, entering a first casting space 50 of the mold, and coating a foaming matrix 100 in the first casting space to form a primary coating material;
c. adding raw materials and additives thereof which form the second color resin into a second auxiliary extruder, melting the raw materials and the additives thereof in the second auxiliary extruder to form a molten material, diffusing the molten material through a second auxiliary runner 60 of the mold, flowing out from an outlet of the second auxiliary runner, entering a second casting space 70 of the mold, coating the primary coating material in the second casting space to form a secondary coating material, and extruding the secondary coating material from a die orifice 80 of the mold to form a floor precursor structure; the flooring precursor structure has a foamed substrate 100, a first skin 201 'and a second skin 202' disposed between the first skin and the foamed substrate;
d. cooling and forming the floor front body structure; in the step, in the whole or partial cooling process, a shaping mold is adopted to shape the floor precursor structure to prevent the floor precursor structure from warping;
e. heating the surface of the cooled and formed floor precursor structure to soften at least the first surface layer 201'; in the step, when the surface is heated, a tunnel type oven is adopted for heating, the temperature in the oven is controlled to be 200 ℃, the time is controlled to be 15s, and the temperature of the first surface layer 201' is controlled to be within 200 ℃; in the step, when the embossing roller is used for embossing treatment, the embossing roller is a cold roller;
f. pressing partial area of the first surface layer 201 'into the surface of the second surface layer 202' through the embossing treatment of the embossing roller, so that the first surface layer and the second surface layer jointly represent the previous state of the wood texture; in the step, when the embossing roller is used for embossing, a lining die is used for lining the workpiece; the lining die has a plurality of protrusions that match the shape of the vacant areas 130 of the workpiece.
g. Polishing to enable the first surface layer 201 ' which is not pressed below the surface of the second surface layer 202 ' to be worn, and displaying the second surface layer 202 ' on the corresponding part of the worn area; so that the pre-state of the wood grain is transformed into the wood grain.
Claims (10)
1. Prevent ponding foaming floor, its characterized in that: the floor comprises a foaming matrix (100) which is formed by resin and has a block structure and a hard surface layer (200) which is integrally connected with the foaming matrix and covers the foaming matrix (100); the foaming matrix (100) is formed by integrally connecting a surface plate (110) and a plurality of supporting units (120); each supporting unit comprises a supporting plate (121) and a pressure-bearing bottom plate (122) which are integrally connected, the supporting plate (121) is vertically arranged, and the pressure-bearing bottom plate (122) is horizontally arranged; an empty area (130) is formed between adjacent supporting units (120) to make the lower surface of the floor discontinuous.
2. The water accumulation preventing floor as recited in claim 1, wherein: the hard surface layer (200) comprises a first exposed surface (201) formed by a first color resin which is approximately parallel to the upper surface of the foaming base body, and a second exposed surface (202) formed by a second color resin; the second exposed face (202) being at a smaller distance from the surface of the foamed substrate covered than the first exposed face (201); the first exposed surface (201) is composed of a plurality of exposed units which are substantially in the same plane, the second exposed surface (202) is composed of a plurality of sunken units, and the exposed units and the sunken units are arranged in a staggered mode; the hard surface layer (200) further comprises a connecting unit between the adjacent exposed units and the sunken units, wherein the connecting unit comprises a connecting substrate (210) which is formed by first color resin and is integrally connected with the first exposed surface (201), and a connecting surface material (220) which is covered on the connecting substrate (210), is formed by second color resin and is integrally connected with the second exposed surface; the hard surface layer further comprises a base layer (203) which is formed by first color resin, is integrally connected with the connecting substrate (210) and is covered by the second exposed surface (202); the first color resin is different in color from the second color resin.
3. The waterlogging-prevention foaming floor as set forth in claim 2, wherein: the thickness of the first exposed surface (201) is not less than 0.1mm, and the thickness of the second exposed surface (202) is not less than 0.05 mm.
4. The method for preparing the waterlogging-preventing foamed floor as recited in claim 2, comprising the steps of:
a. adding raw materials and additives thereof which form a foaming matrix into a main extruder, melting and plasticizing the raw materials and the additives thereof in the main extruder, entering a main runner (10) of a mold, extruding the raw materials and the additives from a die lip (20) of the main runner, entering a foaming cavity (30) of the mold for foaming, and further forming the foaming matrix (100);
b. adding raw materials and additives thereof which form the first color resin into a first auxiliary extruder, melting the raw materials and the additives thereof in the first auxiliary extruder to form a molten material, diffusing the molten material through a first auxiliary runner (40) of a die, flowing out from an outlet of the first auxiliary runner, entering a first casting space (50) of the die, and coating a foaming matrix (100) in the first casting space to form a primary coating material;
c. adding raw materials and additives thereof which form the second color resin into a second auxiliary extruder, melting the raw materials and the additives thereof in the second auxiliary extruder to form a molten material, diffusing the molten material through a second auxiliary runner (60) of the die, flowing out of an outlet of the second auxiliary runner, entering a second casting space (70) of the die, coating the primary coating material in the second casting space to form a secondary coating material, and extruding from a die orifice (80) of the die to form a floor precursor structure; the floor precursor structure has a foamed substrate (100), a first skin (201 ') and a second skin (202') disposed between the first skin and the foamed substrate;
d. cooling and forming the floor front body structure;
e. subjecting the cooled and formed floor precursor structure to surface heating to soften at least the first surface layer (201');
f. pressing partial area of the first surface layer (201 ') below the surface of the second surface layer (202') through the embossing treatment of the embossing roller, so that the first surface layer and the second surface layer jointly represent the previous state of the wood texture;
g. grinding to cause the first surface layer (201 ') which is not pressed below the surface of the second surface layer (202 ') to be worn, and presenting the second surface layer (202 ') at the corresponding part of the worn area; so that the pre-state of the wood grain is transformed into the wood grain.
5. The method for preparing the floor of claim 4, wherein the method comprises the following steps: in the step a, a foaming cavity of a mold is matched with the cross section of the floor; the die cavity space distributed by the material flow corresponding to the surface plate (110) is smaller than the die cavity space distributed by the material flow corresponding to the supporting plate (121) and the pressure-bearing bottom plate (122).
6. The method for preparing the floor of claim 4, wherein the method comprises the following steps: in step a, a flow blocking plate (90) is disposed within the mold cavity such that a flow rate of the flow corresponding to the skin (110) is restricted.
7. The method for preparing the floor of claim 4, wherein the method comprises the following steps: in step d, in the whole or part of the cooling process, a shaping mold is adopted to shape the floor precursor structure so as to prevent the floor precursor structure from warping.
8. The method for preparing the floor of claim 4, wherein the method comprises the following steps: in the step f, when the embossing roller is used for embossing, a lining die is used for lining the workpiece; the lining die is provided with a plurality of bulges which are matched with the shape of the vacant areas (130) of the workpiece.
9. The method for preparing the floor of claim 4, wherein the method comprises the following steps: the foaming matrix (100) is made of PVC foaming material, and the hard surface layer (200) is made of ASA non-foaming material.
10. The method for preparing the floor of claim 4, wherein the method comprises the following steps: in the step e, a tunnel type oven is adopted for heating during surface heating, the temperature in the oven is controlled to be 150-250 ℃, the time is controlled to be 3-20 s, and the temperature of the first surface layer (201') is controlled to be within 250 ℃.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068942.9A CN111119442B (en) | 2020-01-21 | 2020-01-21 | Floor capable of preventing water accumulation and foaming |
| PCT/CN2020/082379 WO2021147171A1 (en) | 2020-01-21 | 2020-03-31 | Foam floorboard capable of preventing accumulation of water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068942.9A CN111119442B (en) | 2020-01-21 | 2020-01-21 | Floor capable of preventing water accumulation and foaming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111119442A true CN111119442A (en) | 2020-05-08 |
| CN111119442B CN111119442B (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010068942.9A Active CN111119442B (en) | 2020-01-21 | 2020-01-21 | Floor capable of preventing water accumulation and foaming |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111119442B (en) |
| WO (1) | WO2021147171A1 (en) |
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| WO2021147171A1 (en) | 2021-07-29 |
| CN111119442B (en) | 2020-08-04 |
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