CN2581153Y

CN2581153Y - Wide in width PVC floor extruded by screw at high temp and extruding mould

Info

Publication number: CN2581153Y
Application number: CN02257782U
Authority: CN
Inventors: 郝玉寿; 王海波
Original assignee: Laian Hengtong Rubber Products Co Ltd
Current assignee: Laian Hengtong Rubber Products Co Ltd
Priority date: 2002-10-15
Filing date: 2002-10-15
Publication date: 2003-10-22
Anticipated expiration: 2012-10-15

Abstract

The utility model relates to a wide-width PVC floor extruded by a screw bolt in high temperature, which has the advantages of high density, favorable wear-resistance, aging-resistance, good high-temperature resistance, etc. Since the width of the utility model is equal to or wider than 2.8 meters, the utility model is very suitable for the width need of 2.8 meters of a railway car. The utility model can be directly laid on the ground of the railway car, which effectively overcomes the shortcomings that a plurality of narrow-width floors are spliced together with link seams which cause not beautiful appearance, etc. The utility model can also be directly laid on the ground of a ship cabin and a public place with a large visitor flowrate, and can still be used by a household instead of a coating type floor.

Description

Wide cut PVC floor and extrusion molding mould thereof that screw rod high temperature is extruded

Technical field:

The utility model relates to a kind of PVC floor, and the wide cut PVC floor that particularly a kind of screw rod high temperature is extruded belongs to the polrvinyl chloride product field.

Background technology:

Existing P VC floor also claims the PVC flooring leather, though the production history of existing decades, but early stage the use is coated with the flooring laminate of scraping the formula explained hereafter, form owing to only the batching of emulsification is coated with in process of production to scrape on fabricbase, to solidify through hyperthermia drying again, though technology is simple, but do not provide because of there being pressure in process of production, so poor surface smoothness of product, packing is low, section is a microcellular structure, make mechanical strengths such as the anti-wear performance of product and anti-fracture relatively poor, can't satisfy the requirement that lay on the big ground, public place of flow of the people, now the PVC floor replacement of progressively being produced by screw rod high temperature extrusion molding.Because screw rod high temperature extrusion molding uses screw rod to squeeze the bar extruder and the PVC pellet is heated into the solvent or diluent of molten condition and is expressed to the plate that makes it to form suitable thickness in the mould and extrude from die orifice, the PVC material can be mixed under molten condition with additives such as thermoplastic elastomer (TPE) and antismoke agent and stabilizing agents and mediate, macromolecular structure is cross-linked with each other, and higher pressure is being arranged when the die orifice, thereby can obtain the packing height, wearability is good, anti-aging and the PVC floor that all improves a lot such as resistance to elevated temperatures, now in railway carriage, bring into use.But owing to the fabric width on the PVC floor of using screw rod high temperature extrusion molding to produce at present is generally narrower, only be wide more than 1 meter, the needs that can not adapt to 2.8 meters normal widths of railway carriage, can only with 2 width of cloth or 3 width of cloth in a narrow margin the floor splicing-in form, the floor of this splicing-in has not only increased workload, significantly connect seam but also exist, have a strong impact on the attractive in appearance of floor, also can make the shortcomings such as mechanical strength reduction of seam crossing.

Summary of the invention:

The purpose of this utility model is can only produce the weak point on floor in a narrow margin in order to overcome above-mentioned screw rod high temperature extrusion molding, designs the wide cut PVC floor that a kind of screw rod high temperature is extruded.

Another purpose of the present utility model is to design a kind of extrusion molding mould for producing the wide cut PVC floor that screw rod high temperature extrudes.

The wide cut PVC floor that screw rod high temperature of the present utility model is extruded, mainly be on the basis on the common PVC floor that existing screw rod high temperature is extruded, follow-up equipments such as the extrusion molding mould on floor and press polish coiling machine are suitably widened, one-time formed PVC floor fabric width is increased to is equal to or greater than 2.8 meters.

In order to make the flow of fused materials in the extrusion molding mould extrusion even, also need extrusion molding mould on the basis of the existing mold that includes diversion cavity and extrusion, increase to have and all press the chamber, the described chamber of all pressing is between diversion cavity and extrusion.

The wide cut PVC floor that screw rod high temperature of the present utility model is extruded is because the method production of using screw rod high temperature to extrude, thereby has a packing height, wearability is good, advantages such as anti-aging and resistance to elevated temperatures is good, has the very wide advantage of amplitude again, the needs that meet 2.8 meters width of railway carriage, can be laid immediately on the railway carriage ground, effectively overcome several width of cloth in a narrow margin the floor splicing-in produce to connect seam and cause shortcomings such as not attractive in appearance, this wide cut PVC floor can also be laid immediately on the big ground, public place of steamer main cabin and flow of the people, more can replace being coated with the formula floor of scraping and enter family's use, have wide use prospect.

Description of drawings:

Accompanying drawing 1 is the structural representation on the wide cut PVC floor that screw rod high temperature is extruded in the utility model;

Accompanying drawing 2 is structural representations of the extrusion molding mould on the wide cut PVC floor that production screw rod high temperature is extruded in this practicality newly.

The specific embodiment:

Referring to accompanying drawing, 1 in the accompanying drawing 1 is the wide cut PVC floor that screw rod high temperature is extruded, the 2nd, and the fabric width on floor, this fabric width is for being equal to or greater than 2.8 meters.As consider that the both sides, compartment need upwards lay certain altitude, when being more conducive to sanitation and hygiene, the width on finished product floor can be designed to more than 3.2 meters.In the accompanying drawing 23 is cope match-plate patterns of extrusion molding mould, the 4th, and the lower bolster of extrusion molding mould, the 5th, diversion cavity, the 6th, all press the chamber, the 7th, extrusion.Existing extrusion molding mould is to be provided with diversion cavity 5 can make the mass flow at extrusion 7 places even between cope match-plate pattern 3 and lower bolster 4, but after the width increasing for extrusion, will make the pressure of material on extrusion both sides lower, make the gage distortion on middle part, floor and both sides, in order to make the thickness uniformity on wide cut floor, just need make the flow of fused materials in the extrusion molding mould extrusion even, in order to make the flow of fused materials in the extrusion molding mould extrusion even, need be on the basis of the existing mold that includes diversion cavity 5 and extrusion 6 with extrusion molding mould, increase to have and all press chamber 6, the described chamber 6 of all pressing is between diversion cavity 5 and extrusion 7.For the press polish coiling machine supporting, only need suitable the increasing of length got final product with it.In order to economize in raw materials, to reduce cost, after the leftover pieces of cutting can being pulverized, be pressed into thin plate as lower floor or middle level, and before the press polish coiling machine, be pasted together with the upper strata while hot and can become bilayer or multi-layer floor through another set of screw rod high temperature extrusion equipment.

Claims

1, a kind of screw rod high temperature wide cut PVC floor of extruding is characterized in that the width on PVC floor is equal to or greater than 2.8 meters.

2, the extrusion molding mould on right 1 described PVC floor comprises diversion cavity and extrusion, it is characterized in that also including and all presses the chamber, and the described chamber of all pressing is between diversion cavity and extrusion.