CN211941965U

CN211941965U - Production device for wood-grain-like co-extrusion color-mixing wood-plastic composite material

Info

Publication number: CN211941965U
Application number: CN201922156163.XU
Authority: CN
Inventors: 游瑞生; 游秋杨; 曾柱强
Original assignee: Guangzhou Kangsen New Material Technology Co ltd
Current assignee: Guangzhou Kangsen New Material Technology Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-11-17
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a wood grain imitation co-extrusion colour mixture wood-plastic composite's apparatus for producing, including first extrusion part, part transition piece, crowded module, coining mill, design platform and cutting machine altogether, be equipped with the second in the crowded module altogether and extrude part and wood grain control unit, have cylindric clearance in the wood grain control unit. This apparatus for producing is through separately adding surface fabric and look female, and it is unsatisfactory or have or the current situation that does not have effectively to have solved among the prior art imitative grain effect that the flow rate unstability that both look female excessively melted and receive the surface fabric to dissolve the interference to cause easily when adding simultaneously. Meanwhile, the addition amount of the color master is in a controllable state, and the produced wood-like grains are also in a controllable state naturally.

Description

Production device for wood-grain-like co-extrusion color-mixing wood-plastic composite material

Technical Field

The utility model relates to a wood-plastic composite production field especially relates to a wood-like co-extrusion colour mixture wood-plastic composite's apparatus for producing.

Background

The co-extrusion wood-plastic composite material is a second-generation novel environment-friendly wood-plastic composite material which is popular at home and abroad in recent years, and structurally, the material comprises a core material and a fabric wrapping the core material, and the effect of wood grains is embodied in the fabric. The preparation method is that core layer materials mixed by thermoplastic plastics (polyethylene, polypropylene, polyvinyl chloride and the like) and waste plant fibers such as wood flour, rice hulls, straws and the like are extruded to a machine head through a conical double screw, and are converged and extruded with coating fabrics containing high polymer materials and color master batches extruded by a single screw extruder to form a section bar with the effect of no wood grain on the surface; the section bar has the performance and characteristics of wood and plastic, is a novel composite material capable of replacing wood and plastic, and is mainly used in industries such as building materials, furniture, logistics packaging and the like.

The wood grain appearance of the sectional material produced by the traditional single-screw extruder at present has the defect of being incapable of being ignored, the most common problems are that the wood grain imitation effect is not ideal, the dispersion is not uniform, or the phenomenon of unilateral flow lines is generated or not, and compared with the original wood, the color and the texture of the co-extrusion color-mixing wood-plastic material are unnatural, and the wood texture is lacked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wood-like grain is crowded colour mixture wood and is moulded combined material's apparatus for producing altogether can optimize the surface fabric that contains macromolecular material and look mother and add the flow, makes the surface of final section bar have ligneous colour and texture.

The utility model adopts the technical proposal that:

the utility model provides an imitative wood grain co-extrusion colour mixture wood-plastic composite's apparatus for producing, including the first part of extruding that communicates each other, part and crowded module are extruded to the second, the output that part and second were extruded to the first part of extruding is connected with two inputs of crowded module altogether respectively, the first part of extruding is used for dropping into the mixture of macromolecular material and useless plant, the second is extruded the part and is used for dropping into the surface fabric, both extrude the shaping after mixing in crowded module altogether in traditional scheme, wherein the mixture is as the sandwich layer, the surface fabric is as the top layer. The production apparatus further includes: the fabric inlet is arranged at the position, far away from the co-extrusion module, of the second extrusion part; and the color master inlet is arranged at the position, close to the co-extrusion module, of the second extrusion part.

Because the melting points of the fabric and the color master are different, the raw materials are respectively input at different stages, and then the materials can be easily controlled to be in an approximate melting state before reaching the co-extrusion module by adjusting the proper heating temperature, so that the texture of the prepared surface layer can be more uniform.

The production device also comprises a wood grain control part which is arranged between the tail end of the second extrusion part and the co-extrusion module, the wood grain control part comprises a shell and a mixing module fixed inside the shell, the inside of the shell and the mixing module are both of a revolving body structure, and the head end and the tail end of the shell are respectively connected with the second extrusion part and the co-extrusion module. Have the clearance between mixing module and the shell, mixing module is close to the second and extrudes the front end of part for the structure of the head width, and the surface fabric can be crowded clearance all around by mixing module row after mixing the mixing module with look female after the contact, except reaching the obvious wood grain effect of linear type with the moderate plastify of look female, also can make look female evenly distributed in the surface fabric.

As an improvement of the scheme, the melting point of common color master is lower, and the color master has the opportunity to obtain enough heat to be converted into a molten state depending on the friction force after being extruded into a gap between the mixing module and the shell; and the color masterbatch directly absorbs part of heat from the fabric in the molten state, so that the color masterbatch is converted into the molten state. However, the heating part is arranged on the shell, so that the color master can be heated more conveniently, and the production efficiency is improved.

As an improvement of the above scheme, the heating component is an electric heating wire or a heat pipe or an induction coil, wherein the electric heating wire can be wound on the housing; the heat pipe can also be wound on the shell; the induction coil refers to induction heating, and the induction coil is distributed around the shell.

As an improvement of the scheme, the front end of the mixing module is hemispherical, conical or prismatic, so that the resistance of the fabric and the color master to enter a gap is reduced.

As an improvement of the scheme, the tail end of the mixing module is provided with a chamfer, so that a subsequent mechanism can conveniently pull out a cylindrical mixture.

As an improvement of the scheme, the color master inlet is connected with a third extrusion part, the third extrusion part is a single-screw extruder, and a programmable color master metering conveyor is arranged at the input end of the third extrusion part.

As an improvement of the scheme, the third extrusion part and the color master metering conveyor are connected with a controller, and the controller identifies the input amount of the color master and controls the rotating speed of a motor of the third extrusion part.

As an improvement of the scheme, the first extrusion part is a conical double-screw extrusion main machine, the second extrusion part is a single-screw extruder, each extrusion part is connected with a controller, and the controllers respectively control the motor rotating speeds of the three mechanisms.

As an improvement of the scheme, the output end of the co-extrusion module is provided with an embossing machine, a shaping table and a cutting machine according to the process sequence, so that a complete production line is formed; the above components can be purchased directly from the market.

The utility model has the advantages that:

this apparatus for producing is through separately adding surface fabric and look female, and it is unsatisfactory or have or the current situation that does not have effectively to have solved among the prior art imitative grain effect that the flow rate unstability that both look female excessively melt and receive the surface fabric melting to disturb to cause when adding simultaneously and appears. Meanwhile, the addition amount of the color master is in a controllable state, and the produced wood-like grains are also in a controllable state naturally. By adopting the technical scheme, the color master batch effect can be furthest exerted, and the addition amount of products with the same color can be reduced, so that the cost is reduced; meanwhile, the structure of the wood grain control part can be further finely adjusted, the wood grain control part is suitable for color masterbatches with different melt indexes, and the limitation of the prior art on the use of the color masterbatches is effectively solved.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of the entire production apparatus;

FIG. 2 is a schematic diagram of a wood grain control component.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, the utility model relates to a production device of wood-like grain co-extrusion color-mixing wood-plastic composite material.

From left to right in fig. 1, the first extrusion part 1, the part transition connector, the co-extrusion module 4, the embossing machine, the sizing table 6 and the cutting machine 7 are respectively seen from the whole, and the mixture of the high polymer material and the waste plant gradually moves from left to right after being extruded to form a first production path. The other input end of the co-extrusion module 4 is provided with a second extrusion part 2, and the fabric and the color master are further introduced, and the fabric, the color master and the color master are compounded together in the co-extrusion module 4. Fig. 1 shows that the output ends of the first extrusion part 1 and the second extrusion part 2 are respectively connected with two input ends of a co-extrusion module 4, and a space exists between an embossing machine, a sizing table 6 and a cutting machine 7.

In the embodiment, the first extrusion part 1 adopts a conical double-screw extrusion host, and the second extrusion part 2 adopts a single-screw extruder, so that the continuous production capacity is high; in other embodiments, a horizontal ram extruder is used. The above parts all belong to more mature equipment, and the scheme of this application has mainly optimized second extrusion part 2 and the wood grain control part 9 that is located between second extrusion part 2 and the crowded module 4.

The trapezoidal box in fig. 1 represents the feed hopper, and it can be seen that the fabric inlet is arranged at a position of the second extrusion section 2 remote from the co-extrusion module 4, substantially at the starting position of the single screw of the second extrusion section 2; the color master inlet is arranged at the position of the second extrusion part 2 close to the co-extrusion module 4 and is basically arranged at the tail end position of the second extrusion part 2. When color concentrate is added at this location, the concentrate is typically also in fine particulate form. Because the melting points of the fabric and the color master are different, the raw materials are respectively input at different stages, and then the heating temperature is reasonably controlled, so that the fabric and the color master can be easily controlled to be in an approximate melting state before reaching the co-extrusion module 4, and the texture of the prepared surface layer can be more uniform.

In order to achieve a better wood grain imitation effect, the scheme of the application introduces a wood grain control component 9 on the basis, and the wood grain control component 9 is arranged between the second extrusion component 2 and the co-extrusion module 4.

Specifically referring to fig. 2, the wood grain control member 9 includes a housing 91 and a kneading module 92 fixed inside the housing 91, and both the inside of the housing 91 and the kneading module 92 have a rotary structure. The head and the tail both ends of shell 91 are equipped with the flange, and shell 91 head and the tail both ends are extruded part 2 and are connected with crowded module 4 altogether with the second respectively, and mixing module 92 is close to the second and extrudes the structure that part 2's front end is the head narrow body width, and the surface fabric can be extruded after mixing with look mother after contact mixing module 92, after mixing evenly dispersed to clearance all around, this clearance also is called the melting tank. The dotted line in fig. 2 indicates the flow path of the mixture. In the embodiment, the melting tank not only moderately plasticizes the color masterbatch to achieve the linear obvious wood grain effect, but also enables the color masterbatch to be uniformly distributed in the fabric.

Because of the low melting point of a typical color master, the color master has an opportunity to acquire enough heat to transform into a molten state by friction after being extruded into the gap between the compounding module 92 and the housing 91. However, the heating part is arranged on the shell 91, so that color masterbatch is more conveniently heated, and the production efficiency is improved.

Because the mixing module 92 can be fixed on the shell 91 only through the support 93, in order to reduce friction, the support 93 is set to be a narrow structure as much as possible, the length is also shortened as much as possible, and the periphery of the support 93 is rounded; the mixture is fluid and, although temporarily separated, eventually comes together.

In this embodiment, the heating element is an electric heating wire, the housing 91 is made of metal with good heat conductivity, and the mixing module 92 is made of solid metal, so that the electric heating wire is wound around the housing 91, which is very simple, and therefore, fig. 2 does not show the heating element; in order to protect the heating wire and accidental scald, a layer of heat insulation cotton can be wrapped on the outer shell 91. The heat pipe and the induction coil are arranged in a same way.

The front end of the mixing module 92 is hemispherical or conical, so that the resistance of the fabric and the color master to enter the gap is reduced. In figure 2 it can be seen that the front end of the mixing module 92 is slightly protruding. Correspondingly, the tail end of the mixing module 92 is provided with a chamfer, the size of the chamfer is larger, and a larger outlet is formed between the mixing module 92 and the shell 91, so that a subsequent mechanism can conveniently pull out a cylindrical mixture.

In other embodiments, the color concentrate is directly added to the color concentrate inlet. In this embodiment, the color master inlet is connected to the third extrusion part 3, accordingly, the third extrusion part 3 is a single-screw extruder, and the programmable color master metering conveyor is arranged at the input end of the third extrusion part 3. The third extrusion part 3 and the color master metering conveyor are both connected with a controller, and the controller identifies the addition amount of the color master and controls the rotating speed of a motor of the third extrusion part 3, so that the aim of automatically controlling the wood grain shade and the flow pattern effect is fulfilled.

In this embodiment, the controller controls the motor speeds of the three extrusion hosts respectively, so as to control the overall processing speed. In fig. 1, it can be seen that the same side of the second pressing member is provided with a control panel 8 and a display screen of the controller, which are convenient for observation and control.

Of course, the design creation is not limited to the above embodiments, and the combination of different features of the above embodiments can also achieve good effects. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope defined by the claims of the present application.

Claims

1. The utility model provides an imitative wood grain co-extrusion colour mixture wood-plastic composite's apparatus for producing, includes that the first of intercommunication each other extrudes part, second and extrudes part and crowded module altogether, and the output that the part was extruded to first extrusion part and second is connected with two inputs of crowded module altogether respectively, and its characterized in that still includes:

the fabric inlet is arranged at the front end of the second extrusion part;

the color master inlet is arranged at the rear end of the second extrusion part;

the wood grain control part is arranged between the tail end of the second extrusion part and the co-extrusion module and is simultaneously connected with the wood grain control part and the co-extrusion module, the wood grain control part comprises a shell and a mixing module fixed inside the shell, the head end and the tail end of the shell are respectively connected with the second extrusion part and the co-extrusion module, a gap is formed between the mixing module and the shell, and the mixing module is of a structure with a narrow head and a wide body and is close to the front end of the second extrusion part.

2. The production device according to claim 1, wherein: the shell is provided with a heating component.

3. The production device according to claim 2, wherein: the heating component is an electric heating wire or a heat pipe or an induction coil.

4. The production device according to claim 1, wherein: the front end of the mixing module is hemispherical, conical or prismatic.

5. The production device according to claim 4, wherein: and a chamfer angle is arranged at the tail end of the mixing module.

6. The production device according to claim 1, wherein: the color master inlet is connected with a third extrusion part, the third extrusion part is a single-screw extruder, and the input end of the third extrusion part is provided with a programmable color master metering conveyor.

7. The production device according to claim 6, wherein: and the third extrusion part and the color master metering conveyor are connected with a controller, and the controller identifies the input amount of the color master and controls the rotating speed of a motor of the third extrusion part.

8. The production device according to claim 7, wherein: the first extrusion part is a conical double-screw extrusion host, the second extrusion part is a single-screw extruder, each extrusion part is connected with a controller, and the controllers respectively control the motor rotating speeds of the three mechanisms.

9. The production device according to any one of claims 1 to 8, wherein: the output end of the co-extrusion module is provided with an embossing machine, a shaping table and a cutting machine according to the process sequence.