CN213767542U

CN213767542U - Double-layer co-extrusion wood-plastic profile structure

Info

Publication number: CN213767542U
Application number: CN202022770582.5U
Authority: CN
Inventors: 董入贵; 史祥斌; 黄涛; 胡超强; 陈璟
Original assignee: Nanjing Rongshijing Composite Material Co ltd
Current assignee: Nanjing Rongshijing Composite Material Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-23
Anticipated expiration: 2030-11-25

Abstract

The utility model belongs to the field of building materials, in particular to a double-layer co-extrusion wood-plastic profile structure, which comprises a profile body, wherein the profile body is divided into an outer layer, a middle layer and an inner core layer three-layer structure, the middle layer is wrapped outside the inner core layer, the outer layer is arranged outside the middle layer, a plurality of splicing bulges are arranged below the outer layer, one side of the profile body is provided with an installation groove, the other side of the profile body is provided with an installation bulge, the bottom of the profile body is provided with a plurality of semicircular grooves, the utility model can ensure that the inner core layer is firmly connected with the outer layer through the splicing bulges, thereby being conductive to preventing stripping and wrinkling, the installation bulges and the installation grooves ensure that the splicing between profile plates is convenient, simultaneously, the upper surface layer and the lower surface layer of the outer layer ensure that the wood-plastic profile has excellent performances of wear resistance, ageing resistance, water resistance, corrosion resistance and the like, and the middle layer plays the role of firmly bonding the inner core layer and the outer layer, the flame retardant layer further improves the flame retardant property of the profile body.

Description

Double-layer co-extrusion wood-plastic profile structure

Technical Field

The utility model belongs to the building material field, concretely relates to double-deck crowded wood-plastic composite structure altogether.

Background

Wood-plastic is a wood-plastic composite material, and is a new wood material prepared by mixing waste plant fibers such as wood powder, rice hulls, straws and the like with materials such as polyethylene and the like instead of common resin adhesives. The co-extruded wood-plastic section is a new product in recent years, is produced by adopting the most advanced extrusion molding technology in the industry, and synchronously extrudes various fabrics by using different molds for one-time mixing molding. Compared with common wood plastic, the co-extruded wood plastic has more protection layers and has excellent performances of wear resistance, scratch resistance and the like. The existing co-extruded wood-plastic section bar has the stripping phenomenon of a protective layer and an inner core layer after being used for a period of time, meanwhile, the wood-plastic section bar is not firmly connected and is easy to move, and the bottom anti-corrosion performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can consolidate inside and outside connection and have the double-deck crowded wood-plastic composite section structure altogether of multiple good performance.

The utility model provides a following technical scheme:

the utility model provides a double-deck crowded wood of coextruding moulds section structure, includes the section bar body, the section bar body divide into skin, intermediate level, interior sandwich layer three layer construction, the outer parcel of interior sandwich layer has the intermediate level, the intermediate level is provided with outward the skin, it is protruding that outer below is provided with a plurality of concatenations, section bar body one side is provided with mounting groove, and its opposite side is provided with the installation arch, section bar body bottom is provided with a plurality of semicircular groove.

Further, the inner core layer is made of common PE wood-plastic materials, the outer layer is divided into an upper surface layer and a lower surface layer, the upper surface layer is made of modified PE materials or elastomers, and the lower surface layer is an epoxy resin anticorrosive layer.

Furthermore, the middle layer is made of hot melt adhesive resin.

Furthermore, the first inclined plane of the mounting protrusion is attached to the second inclined plane of the mounting groove.

Furthermore, a flame-retardant layer is arranged in the inner core layer, flame-retardant particles are arranged in the flame-retardant layer, and splicing grooves corresponding to the splicing bulges are formed in the top of the inner core layer.

Furthermore, the inner core layer can be arranged into a circular hole or square hole structure, and the outer surface of the upper surface of the outer layer is arranged into a tooth surface or an arch surface.

The utility model has the advantages that: the utility model discloses a concatenation arch makes inner core layer and outer firm in connection, helps the antistripping, prevents corrugating, and installation arch and mounting groove make the concatenation convenient between the section bar board, and outer upper epidermis makes the wood-plastic section bar have good properties such as wear-resisting, ageing resistance, waterproof, anticorrosive with setting up on lower top layer simultaneously, and the intermediate level plays firmly bonding inner core layer and outer effect, and fire-retardant layer has then further improved the fire behavior of section bar body.

Drawings

FIG. 1 is an overall view of a double-layer co-extruded wood-plastic profile structure of the present invention;

fig. 2 is a sectional view of the double-layer co-extruded wood-plastic profile structure of the utility model.

The figures are labeled as follows:

1-a profile body; 2, mounting a groove; 3-a second bevel; 4-semicircular groove; 5, mounting a bulge; 6-a first bevel; 7-an outer layer; 8-an inner core layer; 9-splicing bulges; 10-a flame retardant layer; 11-intermediate layer.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.

Example 1:

combine shown in the attached figure 1-2, a double-deck crowded wood of crowded plastics section structure altogether, including section bar body 1, section bar body 1 divide into outer 7,

intermediate level

11, 8 three layer construction in interior sandwich layer, 8 outer parcel in interior sandwich layer have intermediate level 11, intermediate level 11 is provided with outer 7 outward, outer 7 below is provided with a plurality of

concatenation archs

9, 1 one side of section bar body is provided with mounting groove 2, and its opposite side is provided with

installation arch

5, 1 bottom of section bar body is provided with a plurality of semicircular groove 4.

The inner core layer 8 is made of common PE wood plastic materials, the outer layer 7 is divided into an upper surface layer and a lower surface layer, the upper surface layer is made of modified PE materials or elastomers, and the lower surface layer is an epoxy resin anticorrosive layer; the intermediate layer 11 is made of hot melt adhesive resin; the first inclined surface 6 of the mounting protrusion 5 is attached to the second inclined surface 3 of the mounting groove 2; a flame-retardant layer 10 is arranged in the inner core layer 8, flame-retardant particles are arranged in the flame-retardant layer 10, and splicing grooves corresponding to the splicing bulges 9 are formed in the top of the inner core layer 8; the inner core layer 8 can be provided with a round hole or a square hole structure, and the outer surface of the upper surface layer of the outer layer 7 is provided with a tooth surface or an arch surface.

The utility model discloses a concrete theory of operation as follows:

the two wood-plastic profiles are spliced by the aid of the mounting protrusions and the mounting grooves 2, the first inclined planes 6 and the second inclined planes 3 are attached to each other to achieve tight connection, and bolts are not needed to be used for connecting and fixing so that the internal structure of the profiles can be damaged. Meanwhile, the semicircular groove 4 at the bottom of the profile body 1 can reduce the contact area of the bottom, so that the corrosion and the damage caused by contact can be prevented under the condition of ensuring ventilation, and secondly, the flame retardant property of the profile body 1 is further improved by the flame retardant layer 10. In addition, the inner core layer 8 bears main mechanical properties for common PE wood-plastic materials, the outer layer 7 is divided into an upper surface layer and a lower surface layer, the upper surface layer is made of modified PE materials or elastomers and can provide functions of wear resistance, ageing resistance, water resistance and the like, and the lower surface layer 11 is made of epoxy resin anticorrosive coatings and contributes to enhancing the anticorrosive performance of the section body 1. And the outer layer 7 is connected with the inner core layer 8 more firmly through the splicing bulges 9, and the middle layer 11 plays a role in firmly bonding the inner core layer and the outer layer.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a double-deck crowded wood plastic profile structure altogether, includes section bar body (1), its characterized in that: section bar body (1) divide into skin (7), intermediate level (11), interior sandwich layer (8) three layer construction, interior sandwich layer (8) outer parcel has intermediate level (11), intermediate level (11) are provided with outer layer (7) outward, outer layer (7) below is provided with a plurality of concatenation archs (9), section bar body (1) one side is provided with mounting groove (2), and its opposite side is provided with installation arch (5), section bar body (1) bottom is provided with a plurality of semicircle recesses (4).

2. The double-layer co-extruded wood-plastic profile structure as claimed in claim 1, wherein: the inner core layer (8) is made of common PE wood-plastic materials, the outer layer (7) is divided into an upper surface layer and a lower surface layer, the upper surface layer is made of modified PE materials or elastomers, and the lower surface layer is an epoxy resin anticorrosive layer.

3. The double-layer co-extruded wood-plastic profile structure as claimed in claim 1, wherein: the middle layer (11) is made of hot melt adhesive resin.

4. The double-layer co-extruded wood-plastic profile structure as claimed in claim 1, wherein: the first inclined plane (6) of the mounting protrusion (5) is attached to the second inclined plane (3) of the mounting groove (2).

5. The double-layer co-extruded wood-plastic profile structure as claimed in claim 1, wherein: be provided with fire-retardant layer (10) in interior sandwich layer (8), be fire-retardant granule in fire-retardant layer (10), interior sandwich layer (8) top is provided with the concatenation recess that concatenation arch (9) correspond.

6. The double-layer co-extruded wood-plastic profile structure as claimed in claim 2, wherein: the inner core layer (8) can be provided with a round hole or a square hole structure, and the outer surface of the upper surface of the outer layer (7) is provided with a tooth surface or an arch surface.