CN103847316A - Manufacturing method of natural plant 2B pencil - Google Patents

Abstract

The invention provides a manufacturing method of a natural plant 2B pencil. The manufacturing method is characterized in that a manufacturing process comprises the following steps: (1) washing plant straws subjected to root, branch and leaf removal, and smashing the washed plant straws until the granularity is 200-400 meshes; (2) putting 90-95 parts of smashed plant straws obtained in the step (1), 10-15 parts of adhesive and 0.3-0.8 parts of water into a container, and uniformly stirring the materials so as to obtain a mixture; (3) inputting the mixture obtained in the step (2) into a stepped straw processing extruder, and extruding the mixture into a strip shape; (4) sterilizing and drying a pencil blank obtained in the step (3) by virtue of a common microwave method; (5) grinding, polishing and coloring according to the step (4) so as to obtain a required product. The manufacturing method provided by the invention has the advantages that the raw materials are low in price, natural plants are easily degraded, and pencil crumbs do not pollute the environment.

Description

A kind of preparation method of natural plants Pencil with 2B hardness

Technical field

The present invention relates to a kind of natural plants straw pencil, say more accurately a kind of preparation method of natural plants straw pencil.

Background technology

The penholder major part of the pencil parcel pen core on market is to make with wood raw material now.As everyone knows, timber is national precious resources, is also material in short supply, and how all trades and professions all save timber in research, seek substitute for wood, and every year also considerable for making the amount of wood of pencil, therefore, also intentionally will study substitute for wood.

Summary of the invention

The object of the invention is to propose a kind of preparation method of natural plants Pencil with 2B hardness.

The present invention is solved by following main technical schemes, and a kind of preparation method of natural plants Pencil with 2B hardness, is characterized in that: manufacturing process comprises the following steps:

(1) will remove root, slightly clean and be crushed to 200-400 order with the straw of leaf; (2) get the rear 90-95 part of step (1) pulverizing and binding agent 10-15 part, moisture content 0.3-0.8 part, put into container and stir, obtain compound;

(3) the compound input staged stalk processing extruder of step (2) is extruded into strip; shape machine moulding through multifunction straw again; make cross section and comprise circle, hexagon and the hollow blank matching with pen core; cut into again the length of conventional pencil; then insert pen core; at room temperature natural drying, obtain pencil blank, described extruder with become 50-60 ℃ of red machine operation temperature, pressure 7-8kg/cm;

(4) step (3) pencil blank is through conventional microwave method sterilization, oven dry.

(5) be required product according to step (4) polishing, polishing, colouring processing.

Advantage of the present invention: cost of material is cheap, natural plants, is easy to solution and falls, and pen bits do not pollute the environment.

Specific embodiment:

EXAMPLE l

Will 100 kilograms the cornstalk seen of pulverizing, the wet corn powder of 10 kilograms will remove root, and slightly clean and be crushed to 200-400 order with the straw of leaf, 10 parts of 90-95 part and binding agents after pulverizing, 0.5 part of moisture content, putting into container stirs, obtain compound, compound input staged stalk processing extruder is extruded into strip, shape machine moulding through multifunction straw again, make cross section and comprise circle, hexagon and the hollow blank matching with pen core, cut into again the length of conventional pencil, then insert pen core, at room temperature natural drying, obtain pencil blank, described extruder with become red machine operation temperature 50 C, pressure 7-8kg/cm, pencil blank is through conventional microwave method sterilization, dry, polishing, polishing, colouring is processed and is required product.

Embodiment 2

Will 100 kilograms the cornstalk seen of pulverizing, the wet corn powder of 10 kilograms will remove root, and slightly clean and be crushed to 200-400 order with the straw of leaf, 15 parts of 90-95 part and binding agents after pulverizing, 0.6 part of moisture content, putting into container stirs, obtain compound, compound input staged stalk processing extruder is extruded into strip, shape machine moulding through multifunction straw again, make cross section and comprise circle, hexagon and the hollow blank matching with pen core, cut into again the length of conventional pencil, then insert pen core, at room temperature natural drying, obtain pencil blank, described extruder with become red machine operation temperature 60 C, pressure 7-8kg/cm, pencil blank is through conventional microwave method sterilization, dry, polishing, polishing, colouring is processed and is required product.

Claims (1)

1. a preparation method for natural plants Pencil with 2B hardness, is characterized in that: manufacturing process comprises the following steps:

(1) will remove root, slightly clean and be crushed to 200-400 order with the straw of leaf; (2) get the rear 90-95 part of step (1) pulverizing and binding agent 10-15 part, moisture content 0.3-0.8 part, put into container and stir, obtain compound;

(3) the compound input staged stalk processing extruder of step (2) is extruded into strip, shape machine moulding through multifunction straw again, make cross section and comprise circle, hexagon and the hollow blank matching with pen core, cut into again the length of conventional pencil, then insert pen core, at room temperature natural drying, obtain pencil blank, described extruder with become 50-60 ℃ of red machine operation temperature, pressure 7-8kg/cm;

(4) step (3) pencil blank is through conventional microwave method sterilization, oven dry;

(5) be required product according to step (4) polishing, polishing, colouring processing.