阅读说明：本技术 一种用于制造具有木材纹理的发泡地板的模具 (Mould for manufacturing foamed floor with wood texture ) 是由 唐道远 邓少华 于 2019-10-24 设计创作，主要内容包括：本发明涉及一种用于制造具有木材纹理的发泡地板的模具。该模具由若干模块组成,模块包括主流道模块、第二表层模块和第一表层模块；主流道模块由多个流道板组成,用于仿木纹理的发泡共挤地板的芯层发泡层的成型；第二表层模块至少由一个流道板构成,具有主流道和第二表层流道；第一表层模块至少由一个流道板构成,具有主流道和第一表层流道。采用本发明的模具可以在芯板表面共挤上两个表层；第一表层流道和第二表层流道以半包覆的方式设置,使得第一表层和第二表层成型后半包覆在芯层板上,再经后续处理以形成整体地板的表层；这样地板的表层和底层可以采用不同的原料来制作,能更好得体现整体地板的性能。(The present invention relates to a mold for manufacturing a foamed flooring having a wood grain. The mold consists of a plurality of modules, wherein each module comprises a main runner module, a second surface layer module and a first surface layer module; the main runner module consists of a plurality of runner plates and is used for molding a core layer foaming layer of the foaming co-extrusion floor imitating wood textures; the second surface layer module is at least composed of a runner plate and is provided with a main runner and a second surface layer runner; the first surface layer module is composed of at least one runner plate and is provided with a main runner and a first surface layer runner. The mould can be used for co-extruding two surface layers on the surface of the core plate; the first surface layer runner and the second surface layer runner are arranged in a semi-coating mode, so that the first surface layer and the second surface layer are coated on the core layer plate after being molded, and then the surface layer of the integral floor is formed through subsequent treatment; therefore, the surface layer and the bottom layer of the floor can be made of different raw materials, and the performance of the whole floor can be better embodied.)

1. A mold for manufacturing a foamed floor having wood grain, consisting of a number of modules, characterized in that: the modules comprise a main runner module (3), a second surface layer module (2) and a first surface layer module (1); the main runner module consists of a plurality of runner plates and is used for forming a core layer foaming layer of the foaming floor with wood textures; the second surface module is composed of at least one runner plate and is provided with a main runner (300) and a second surface runner (200); the first skin module is formed at least by one runner plate and has a primary runner (300) and a first skin runner (100).

2. The mold for manufacturing a foamed flooring having a wood grain according to claim 1, wherein: the second surface layer flow channel is communicated with the main flow channel through a straight opening, and the first surface layer flow channel is communicated with the main flow channel through a straight opening.

3. The mold for manufacturing a foamed flooring having a wood grain according to claim 1, wherein: a second surface layer casting cavity (20) is formed between the second surface layer runner and the main runner, and the thickness of the second surface layer casting cavity is the thickness of a second surface layer of the foaming floor with wood textures.

4. The mold for manufacturing a foamed flooring having a wood grain according to claim 1, wherein: a first surface layer casting cavity (10) is formed between the first surface layer runner and the main runner, and the thickness of the first surface layer casting cavity is the thickness of the first surface layer of the foaming floor with wood textures.

5. The mold for manufacturing a foamed flooring having a wood grain according to claim 1, wherein: flow baffles (4) are arranged on two sides of the second surface layer casting cavity (20).

6. The mold for manufacturing a foamed flooring having a wood grain according to claim 5, wherein: flow baffles (4) are arranged on two sides of the first surface layer casting cavity (10).

7. The mold for manufacturing a foamed flooring having a wood grain according to claim 6, wherein: the material feeding port (101) of the first surface layer module is arranged at the upper part of the mould, and the material feeding port (201) of the second surface layer module is arranged at the side part of the mould.

8. The mold for manufacturing a foamed flooring having a wood grain according to claim 7, wherein: the second surface layer module consists of two runner plates, one is a second surface layer forming plate (22), and the other is a second surface layer feeding plate (21); a material inlet (201) of the second surface layer module is arranged on a second surface layer feeding plate (21), and a material outlet (202) of the second surface layer feeding plate is connected with a material inlet (203) of the second surface layer forming plate; the second skin casting chamber (20) is disposed on a second skin forming plate (22).

9. The mold for manufacturing a foamed flooring having a wood grain according to claim 7, wherein: the first surface layer module consists of a runner plate, and a material feeding port (101) and a die outlet (5) of the first surface layer module are arranged on the runner plate.

10. The mold for manufacturing a foamed flooring having a wood grain according to claim 7, wherein: the distance between the discharge port of the first surface layer casting cavity (10) and the discharge port of the second surface layer casting cavity (20) in the plate discharging direction of the die is not less than 0.1 mm.

Technical Field

The invention relates to a mold, in particular to a mold for manufacturing a foaming floor with wood texture.

Background

The traditional wood-like floor is generally a composite floor. The wood-grain-free wear-resistant floor is composed of a density board base material, wood-grain decorative paper, a wear-resistant layer and a balance layer at the bottom. However, as the density board substrate is easy to mildew and rot and has fire hazard, the field needs a mildew-proof and flame-retardant floor. In this case, PVC foam flooring becomes an option. However, the shape and appearance of the PVC foamed floor do not meet the traditional use requirements of people, so that the added value of the PVC foamed floor is low, and the PVC foamed floor is difficult to use in large-area markets.

For example, the chinese patent application with publication number CN102294812A discloses a polystyrene wood-like profile. The surface layer material and the core layer material are respectively put into an auxiliary extruder and a main extruder and are co-extruded to a die, so that the surface layer material is coated on the core layer material. The surface layer material is high impact polystyrene and contains flow pattern color master batch which has good compatibility with the high impact polystyrene but different fluidity and dispersibility, and the core layer material is a polystyrene micro-foaming plate. The surface of the co-extruded profile is embossed to produce a three-dimensional or other effect. The method adopts color master batches with different substrate colors to respectively prepare a base color master batch and a flow line master batch, wherein the base color master batch has good fluidity and is dispersed in a styrene material to form a base color in the processing process; the flow pattern color master batch has lower melt index and poorer dispersibility, can not be uniformly dispersed in the processing process, and forms wood grains or other patterns along with the extrusion of materials. The wood-like texture of the co-extrusion floor is low in simulation degree, and the problems of mutual fusion and color cross of the base color and the flow texture at adjacent positions are easy to occur, so that the wood-like texture is extremely low in grade.

Likewise, conventional co-extrusion dies are not suitable for making the co-extruded flooring of the present invention. For example, chinese patent application publication No. CN107718498 discloses a co-extrusion die. The mould is suitable for traditional co-extrusion floors, and two surface layers cannot be co-extruded on the surface of the core layer.

Disclosure of Invention

The present invention has been made to solve the above problems, and therefore provides a mold for manufacturing a foamed flooring having a wood grain. The floor manufactured by the mold can be co-extruded with two surface layers on the surface of the core layer, and the co-extruded floor can have vivid wood texture effect through post-processing.

The technical scheme for solving the problems is as follows:

a mold for manufacturing a foamed flooring having wood grain, consisting of a number of modules including a main runner module, a second skin module and a first skin module; the main runner module consists of a plurality of runner plates and is used for forming a core layer foaming layer of the foaming floor with wood textures; the second surface layer module is at least composed of a runner plate and is provided with a main runner and a second surface layer runner; the first surface layer module is composed of at least one runner plate and is provided with a main runner and a first surface layer runner.

Preferably, in the above technical solution, the second surface layer flow channel is communicated with the main flow channel through a straight opening, and the first surface layer flow channel is communicated with the main flow channel through a straight opening.

Preferably, a second surface layer casting cavity is formed between the second surface layer runner and the main runner, and the thickness of the second surface layer casting cavity is the thickness of the second surface layer of the foamed floor with wood grains.

Preferably, a first surface layer casting cavity is formed between the first surface layer runner and the main runner, and the thickness of the first surface layer casting cavity is the thickness of the first surface layer of the foamed floor with wood grains.

Preferably, flow baffles are arranged on two sides of the second surface layer casting cavity.

Preferably, flow baffles are arranged on two sides of the first surface layer casting cavity.

As the optimization of the technical scheme, the material feeding port of the first surface layer module is arranged at the upper part of the die, and the material feeding port of the second surface layer module is arranged at the side part of the die.

Preferably, the second surface module is composed of two runner plates, one is a second surface forming plate, and the other is a second surface feeding plate; the material inlet of the second surface layer module is arranged on the second surface layer feeding plate, and the material outlet of the second surface layer feeding plate is connected with the material inlet of the second surface layer forming plate; the second skin casting chamber is disposed on the second skin forming plate.

Preferably, the first surface module is composed of a runner plate, and the material inlet and the die outlet of the first surface module are both arranged on the runner plate.

Preferably, the distance between the discharge port of the first surface layer casting cavity and the discharge port of the second surface layer casting cavity in the plate discharging direction of the die is not less than 0.1 mm.

The invention has the following beneficial effects:

1. the mould can be used for co-extruding two surface layers on the surface of the core plate, and is suitable for manufacturing the mould of the foaming floor with wood grains;

2. the discharge ports of the two casting cavities are spaced in the plate discharging direction of the die, so that the first surface layer and the second surface layer can be coated on the core plate layer in a layered manner, and the die has the advantage of no color cross;

3. the first surface layer runner and the second surface layer runner are arranged in a semi-coating mode, so that the first surface layer and the second surface layer are coated on the core layer plate after being molded, and then the surface layer of the integral floor is formed through subsequent treatment; therefore, the surface layer and the bottom layer of the floor can be made of different raw materials, and the performance of the whole floor can be better embodied.

Drawings

FIG. 1 is a schematic structural view of the mold of the present invention;

FIG. 2 is a front view of the A plate of FIG. 1;

FIG. 3 is a front view of the B plate of FIG. 1;

FIG. 4 is a front view of the C plate of FIG. 1;

in the figure, 1-a first skin module, 2-a second skin module, 3-a main runner module; 4-flow baffle, 5-mould outlet;

10-a first surface layer casting cavity, 20-a second surface layer casting cavity;

21-feeding a second surface layer into a plate, and 22-forming a second surface layer into a plate;

100-a first surface flow channel, 200-a second surface flow channel;

101-a material inlet of the first surface layer module;

201-a material inlet of the second surface layer module;

202-material discharge hole of second surface layer feeding plate;

203-second skin forming plate material inlet.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

This detailed description is to be construed as illustrative only and is not limiting, since various modifications will become apparent to those skilled in the art after reading the present specification, and the scope of the appended claims is to be protected by the following claims.

As shown in fig. 1, a mold for manufacturing a foamed flooring having a wood grain includes a main flow channel module 3, a second skin module 2, and a first skin module 1, which are composed of eight a-H flow channel panels.

Wherein the D-H board is provided with a main runner 300 of a mold core for molding a core foaming layer of the foamed floor having wood grains.

Referring to fig. 4, the plate C is provided with a material inlet 201 of the second surface layer module and a material outlet 202 of the second surface layer feeding plate, in addition to the main runner 300 of the mold core layer. The two ports are communicated through a flow passage.

Referring to fig. 3, the B plate is provided with a material inlet 203 and a second surface layer runner 200 of the second surface layer forming plate, in addition to a main runner 300 of the mold core layer, and a second surface layer casting cavity 20 is formed between the second surface layer runner 200 and the main runner 300. Flow baffles 4 are further arranged at the end parts of the two sides of the second surface layer casting cavity 20. The second surface layer runner 200 is communicated with the second surface layer casting cavity 20 through a straight line; by such arrangement, the melt of the second surface layer can be coated on the core layer plate in a half-coating manner to form the first intermediate body.

The plate C is also the second surface layer feeding plate 21, and the plate B is also the second surface layer forming plate 22; the material outlet 202 of the second surface layer feeding plate is connected with the material inlet 203 of the second surface layer forming plate; the second skin tape casting cavity 20 is arranged on the second skin forming plate 22, and the material feeding port 201 of the second skin module is arranged at the side of the whole die.

The B and C plates together constitute a second skin module 2.

Referring to fig. 2, the plate a is provided with a material inlet 101 and a first surface layer runner 100 of a first surface layer module, in addition to a main runner 300 of a mold core, and a first surface layer casting cavity 10 is formed between the first surface layer runner 100 and the main runner 300. Flow baffles 4 are arranged at the end parts of the two sides of the first surface layer casting cavity 10. The first surface layer runner 100 is communicated with the first surface layer casting cavity 10 through a straight line; by the arrangement, the melt of the first surface layer is coated on the first intermediate body in a half-coating mode, and a precursor structure of the foaming floor with wood grains is formed.

In this embodiment the first skin module 1 consists solely of one flow field plate, i.e. the a-plate. The material inlet 101 and the die outlet 5 of the first skin module are both arranged on the a plate, while the material inlet 101 of the first skin module is arranged on the upper part of the die.

In order to prevent the first skin layer and the second skin layer from being discolored, the distance between the discharge port of the first skin layer casting cavity 10 and the discharge port of the second skin layer casting cavity 20 in the die plate discharge direction is not less than 0.1 mm.

The precursor structure of the foamed flooring having wood grains is further processed to form a flooring having wood grains, which has a realistic wood grain effect and can be adjusted to generate various wood grains.

The post-processing is realized based on two surface layers, and the Chinese patent application with the publication number of CN102294812A only has one surface layer, so the expression method is monotonous. The floor based on the two surface layers can be respectively processed by using different colors for the two surface layers, for example, the surface layers are embossed, and the surface layers are partially removed after embossing so that the surface of the floor has two layers, and the floor is expressed from the angles of solid (embossing depth), color difference, light and shade and the like, thereby realizing the vivid effect of the texture.