CN101632518A - Method for producing toothbrush - Google Patents

Abstract

The invention provides a method for producing a toothbrush, which is characterized by comprising the following steps: implanting bundle hair into a porously-arranged mould inlay piece by a hair implanter; heating the bundle hair 2-5 mm exposing out of one end of the inlay piece at a high temperature of 120-260 DEG C and fusing into be of bulk shape; placing the inlay piece finishing the above procedure into an injection mould of a toothbrush handle; and injection moulding by an injector. The toothbrush product produced by a heatseal process can effectively save a great amount of nonferrous metal, is simple in the production process and little in the cost variation; and the price level can completely accord with the domestic market consumption; besides, the invention basically solves the problem of pollution caused by oxidation reaction of metal sheets in the traditional process, so that the toothbrush is more sanitary and environment-friendly to use, and the invention plays an active role to some extent in earning foreign exchange through export of toothbrushes.

Description

A kind of manufacture method of toothbrush

Technical field

The present invention relates to toothbrush, especially a kind of manufacture method of toothbrush.

Background technology

Produce the traditional handicraft of toothbrush, at first pass through mold injects moulding plastics toothbrush handles by injection machine, bristle is implanted in the hole of acrylic resin tooth brush holder implanted metal sheet simultaneously with feather planting machine then, utilization, is fixed on bristle in each circular hole of acrylic resin tooth brush holder the extruding force that plastics produce greater than the sheet metal in aperture.Its production technology need consume a large amount of irretrievable non-ferrous metals, and because very little in order to the sheet metal volume of firm bristle, extruding force is limited, so toothbrush in use usually the phenomenon that bristle comes off can take place.

At present, continue to use iron plate in the domestic toothbrush production always and fix bristle, be different from developed country such as America and Europe adopt have can anti-oxidant reaction the silver metal sheet fix bristle.Iron plate in the toothbrush can be because element generation chemistry and oxidation reaction such as receive and get rusty with being trapped in the water in the bristle, the fluorophosphoric acid in the toothpaste for a long time in the back of brushing teeth, and the jaundice variable color of brush finish joint portion forms and pollutes, thereby brings adverse factors to health of people.

Summary of the invention

The purpose of this invention is to provide a kind of sheet metal that need not, just bristle, brush holder firmly can be connected the manufacture method of the toothbrush of moulding.

The technical solution used in the present invention is:

Bristle material in the toothbrush product is a nylon yarn, the physical phenomenon that nylon can expand when reaching certain temperature, and utilizing expands behind its heat fused produces the increase of volume, just can reach bristle (nylon yarn) is stabilized in the interior purpose of plastic tooth brush delthyrium.

The manufacturing of toothbrush product is finished by feather planting machine, mold insert, injection moulding (toothbrush handles) mould, injection machine.

Technology characteristics is:

(1) will restraint hair implants in the mold insert of porous arrangement by feather planting machine;

(2) the bundle hair that will expose inserts one end 2～5mm becomes bulk with 120 ℃～260 ℃ high temperature heating and fusing;

(3) inserts that will finish (1)～(2) operation is put into the toothbrush handles injection mold, by injection machine injection moulding.

The toothbrush product that the present invention adopts heat seal process to produce can effectively be saved a large amount of non-ferrous metals.Production technology is simple, the cost of product changes little, sell price and can cater to domestic market comsupton fully, and, fundamentally solve traditional handicraft and can't avoid the pollution that oxidation reaction caused of sheet metal, make toothbrush use much cleaner, more environmental protection, certain positive role is played in the foreign exchange earning of toothbrush.

The specific embodiment

Following steps are adopted in the toothbrush manufacturing of heat fused bristle:

(1) will restraint hair (nylon yarn) by feather planting machine and implant in each hole of inserts (toothbrush handles injection mold) of porous arrangement, and stay and expose end face 2～5mm length.

(2) with heating tool hot blast platform or electric iron, ethane flame stays the nylon yarn that exposes the inserts end face to add the thermal expansion fusion each with 120 ℃～260 ℃ high temperature.

(3) before injection machine injection of plastic toothbrush handles, mold insert is put into the brush holder mould, after injection machine injection moulding, inserts ejected from mould with the acrylic resin tooth brush holder separate.

(4) bundle hair (nylon yarn of monofilament multiply) fusion one end securely with acrylic resin tooth brush holder disjunctor.One draw and to separate inserts with the plastic tooth brush handle gently, can obtain integrated toothbrush.

Claims (1)

1, a kind of manufacture method of toothbrush is characterized in that:

(1) will restraint hair implants in the mold insert of porous arrangement by feather planting machine;

(2) the bundle hair that will expose inserts one end 2～5mm becomes bulk with 120 ℃～260 ℃ high temperature heating and fusing;

(3) inserts that will finish (1)～(2) operation is put into the toothbrush handles injection mold, by injection machine injection moulding.