CN202439203U

CN202439203U - Production device for double-layer polyvinyl chloride (PVC) composite material

Info

Publication number: CN202439203U
Application number: CN2012200283863U
Authority: CN
Inventors: 张佳平
Original assignee: JIANGSU YITE COMPOSITE NEW MATERIALS CO Ltd
Current assignee: JIANGSU YITE COMPOSITE NEW MATERIALS CO Ltd
Priority date: 2012-01-26
Filing date: 2012-01-26
Publication date: 2012-09-19
Anticipated expiration: 2022-01-26

Abstract

The utility model provides a production device for double-layer polyvinyl chloride (PVC) composite material. The production device for the double-layer PVC composite material comprises a first extruder, a second extruder, a co-extruding die used to from the top and from the bottom co-extrude the material extruded from the first extruder and the second extruder to form an upper layer and a lower layer, a pressing roller group disposed at the lower portion of the co-extruding die, a traction mechanism disposed at the lower portion of the pressing roller group, a cutting-edge machine disposed at the traction mechanism and a winding machine disposed at the lower portion of the cutting-edge machine. The production device for the double-layer PVC composite material uses the co-extruding die to from the top and from the bottom co-extrude the material extruded from the first extruder and the second extruder to form the upper layer and the lower layer and has the advantages of simple structure and low cost.

Description

The process units of double-deck PVC composite

Technical field

The utility model relates to the technical field of PVC composite production equipment, specifically is a kind of process units of double-deck PVC composite.

Background technology

General PVC material is grouped into by one-tenth such as polyvinyl chloride resin, stabilizing agent, lubricant, modifier; Mixing of materials evenly back quantitatively adds screw channel; Have screw rod power to be fed forward, the heat effect of machine barrel and the shear action of screw rod make the material plasticizing fusion, reduce gradually to mouth model cavity sectional area from screw channel; Thereby under the screw rod dynamic action, form certain back pressure, make the PVC forming materials.

The defective of individual layer PVC material be its surperficial crude, do not have fineness, must be if just address this problem, but the not environmental protection of this technology to the spraying of polishing of its surface; And it is harmful; Corrosion resistance is relatively poor, and resistance to marring is also relatively poor, cannot Regeneration Treatment.

How a kind of equipment that is suitable for production any surface finish, nontoxic, pollution-free and lower-cost PVC material is provided, and is the technical barrier that this area will solve.

Summary of the invention

The technical problem that the utility model will solve provides a kind of process units of double-deck PVC composite simple in structure, lower-cost.

In order to solve the problems of the technologies described above; The process units of the double-deck PVC composite that the utility model provides comprises: first extruder, second extruder, be used for the material of said first and second extruders output up and down co-extrusion form upper strata and bottom co-extrusion die head, be located at these co-extrusion die head downstream the pressure roller group, be located at these pressure roller group downstream haulage gear, be located at these haulage gear downstream the cutting edge machine, be located at the winder in these cutting edge machine downstream.

The technique scheme of the utility model is compared prior art and is had the following advantages: the process units of the double-deck PVC composite that (1) the utility model is produced; Adopt co-extrusion die head that co-extrusion about the material of first, second extruder output is formed upper strata and bottom, have simple in structure, lower-cost characteristics.In the double-deck PVC composite of producing, bottom is the hard PVC layer, has the stability of mechanical performance and goods preferably, is suitable for satisfying the requirement of product whole rigidity, and bottom has simultaneously that pliability is good, easy-formation, be difficult for characteristics such as crisp, nontoxic, pollution-free.(2) the utility model can be brought into play the advantage of upper and lower layer material, and promptly upper surface has higher fineness and brightness, and bottom is the hard PVC layer, is suitable for satisfying the requirement of product whole rigidity; Overcome the defective of homogenous material, characteristics such as the double-deck PVC material after the combination has that cost is low, energy consumption is little, pure environmental protection, intensity is high, machine-shaping is convenient in process of production without spray paint, can reach zero and pollute and production again.

Description of drawings

Fig. 1 is the structured flowchart of process units of the double-deck PVC composite of the utility model.

The specific embodiment

Embodiment 1

The process units of the double-deck PVC composite of present embodiment, it comprises: first extruder, second extruder, be used for the material of said first and second extruders output up and down co-extrusion form upper strata and bottom co-extrusion die head, be located at these co-extrusion die head downstream the pressure roller group, be located at these pressure roller group downstream haulage gear, be located at these haulage gear downstream the cutting edge machine, be located at the winder in these cutting edge machine downstream.

Embodiment 2

The double-deck PVC composite of present embodiment comprises: the upper strata of coextrusion mold and bottom up and down.

Component that the upper strata comprises and mass percent thereof are: PET resin 15%, plasticizer (one of dibutyl phthalate 3%, epoxidized soybean oil 3%), aluminium silver powder 5%, stabilizing agent 1% (one of UV-531 ultra-violet absorber 1%, anti-oxidant DLTP 1%), lubricant (one of stearic acid 0.5%, paraffin white oil 0.5%), Corvic surplus.

Component that bottom comprises and mass percent thereof are: plasticizer 3% (one of dibutyl phthalate 3%, epoxidized soybean oil 3%), stabilizing agent (one of calcium stearate 0.5%, UV-531 ultra-violet absorber 0.5%, anti-oxidant DLTP 0.5%), lubricant (one of stearic acid 0.5%, atoleine white oil 0.5%), filler (comprising: calcium carbonate 22%, talcum powder 4%, carbon fiber 4%, fire retardant 1%), Corvic surplus.

Raw material is easy to get because polyvinyl chloride has, cheap, advantage such as processability is good, and its goods are widely used in fields such as building, decoration, agricultural film, automobile industry, articles for daily use.With PVC is base-material, adopts the blending and modifying technology of plastic material, plastic foamed technology and MULTILAYER COMPOSITE co-extrusion technology, and producing the top layer is that soft thermoplastic elastomer (TPE), internal surface layer are the novel foaming plate of hard supporter, and one-shot forming need not secondary operations.

The double-deck PVC composite of the utility model just need not spray polishing to its surface; Because its upper strata and bottom all are hard materials; Dibutyl phthalate can be used as primary plasticizer in the bottom, and stearic acid is the effect that prevents the chromatography fouling, and the talcum powder acid resistance is good; The light of the epoxidized soybean oil in the upper strata, Heat stability is good have the effect of heat stabilizer simultaneously concurrently; Ultra-violet absorber heat endurance, chemical stability are good, when processing and forming, do not influence the processing characteristics of high polymer; The lubricated efficiency of paraffin white oil is high, Heat stability is good;

Aluminium silver powder is that a kind of colouring agent makes the surface increase brightness and color, can add other pigment according to requirement of client, and the grain of moulding that must will cause before compound in process of production the extruding carries out vacuum drying, and not only brightness is strong to make the product that forms out; Good hardness, but also environmental protection are seen from using; Like the refrigerator doors frame is to be main with individual layer PVC material, and the double-deck PVC composite of present available the utility model replaces, and the cost of individual layer PVC material is 2 times of novel PVC composite; Not only cost is low for the double-deck PVC composite of the utility model, and environmental protection attractive in appearance, good corrosion resistance; Heat-resisting not aging, cure shrinkage is low, and mechanical strength is high; Electrical insulating property is good, and good flame resistance need not spray and can reach zero and pollute and can Regeneration Treatment.

Claims

1. the process units of a double-deck PVC composite is characterized in that comprising: first extruder, second extruder, be used for the material of said first and second extruders output up and down co-extrusion form upper strata and bottom co-extrusion die head, be located at these co-extrusion die head downstream the pressure roller group, be located at these pressure roller group downstream haulage gear, be located at these haulage gear downstream the cutting edge machine, be located at the winder in these cutting edge machine downstream.