CN1478713A

CN1478713A - Inner shaft pipe and its manufacturing method

Info

Publication number: CN1478713A
Application number: CNA021353808A
Authority: CN
Inventors: 庞曰君
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-26
Filing date: 2002-08-26
Publication date: 2004-03-03

Abstract

An internal shaft tube is prepared from wood, straw or stalk, wheat bran, or rice husk through pulverizing, adding adhesive, stirring, die pressing, baking, grinding, cutting short, and grinding end faces.

Description

Central siphon and preparation method thereof in a kind of

Technical field

The invention belongs to industries such as papermaking, weaving, plastics with interior central siphon field, be specially a kind of interior central siphon and preparation method thereof.

Background technology

Industries such as existing papermaking, weaving, plastics generally all use paper tube as interior axle, and this paper tube is to form by rolling behind wood pulp paper or the careless paperboard impregnation.Need be cut into fillet to big pack of paper during making, be rolled into shallow bid, the shallow bid paper slip is rolled into pipe on wrapping machine behind impregnation, cut after the drying finished product.Have also to polish, gluing, face grinding etc., this method technological process is long, consumption of current is big, papermaking consumes timber, contaminated environment, productive costs height.

Summary of the invention

The purpose of this invention is to provide and a kind ofly add adhesion agent, have that technology is simple, consumption of current is few, production time is short, reduced the environmental pollution characteristics, directly dry a kind of interior central siphon and the production method of making of extruding with tangerine bar powder or timber powder.

The objective of the invention is to be achieved through the following technical solutions, a kind of interior central siphon and preparation method thereof, it adds the adhesion agent extruding by crops tangerine bar powder or timber powder and enters in-mold molding, and drying is made again.Its technology is:

At first wherein any one pulverize to add adhesion agent and stirs timber, tangerine bar, wheat bran, rice chaff (being rice husk), is made into raw material, then the raw material extruding is entered in the mould, and compaction moulding withdraws from mould and makes wet base pipe; The base pipe that will wet is put into drying oven oven dry, or dries into semifinished tube, and then polishes, cuts, face grinding, is processed into production tube.

Semifinished tube can also be squeezed into raw material in the mould that has the steam heated case with following method production, compacting.In the steam box of mould, feed steam heated again.Steam temperature is at 90 ℃-120 ℃, treat its drying after, withdraw from mould semifinished tube.

For the ease of smooth with inside pipe wall of withdrawing from of inner mold, can be earlier on inner mold internal diameter of cover than the big 0.1mm of inner mold external diameter, 2mm, the paper tube of wall thickness 2mm, and then raw material pushed into.Caliber of the present invention is isometrical, can be reducing also, and as taper shape, outer wall, inwall can be triangle, quadrangle, polygon, oval-shaped.

Advantage of the present invention be simple with technology, consumption of current is few, production time is short, reduced environmental pollution.

The specific embodiment

Any is pulverized through comminutor with rice husk or timber, tangerine bar, wheat bran etc., by the sieve plate of 2.5mm-3mm sieve aperture, add the bubble flower alkali of 3.5 times of weight of powdered rice hulls weight, stir, be ready to mould, the outer mold inside face is coated mold release such as liquid paraffin or calcium stearate.Internal diameter of inner mold cover is than the big 0.1mm-0.2mm of inner mold external diameter, the paper tube of wall thickness 2mm, open extrusion press, the raw material that stirs is squeezed in the mould, and pressure is 7.5Mpa-9.5Mpa, takes off mould and puts into oven dry or dry with daylight, water ratio reduces to about 10%, half-blank, then, on polishing lathe the outside face ground smooth.Need cut by length during use, through face grinding, packing warehouse-in.

Claims

1, central siphon in a kind of is characterized in that it by any one adds adhesion agent and stir through pulverizing in timber, tangerine bar, wheat bran, the rice husk, by mould be extruded to shape, drying makes.

2, a kind of interior central siphon according to claim 1, outer wall, the inwall of central siphon can be triangle, quadrangle, polygon or ellipse in it is characterized in that.

3, a kind of method for making of interior central siphon is characterized in that the raw material extruding is entered in the mould, and compaction moulding withdraws from mould and makes wet base pipe; The base pipe that will wet is put into drying oven oven dry, or dries into semifinished tube, and then polishes, cuts, face grinding, is processed into production tube.

4, the method for making of a kind of interior central siphon according to claim 3 is characterized in that internal diameter of cover and the big 0.1mm-0.2mm of internal mold external diameter on internal mold, the paper tube of wall thickness 2mm.