CN102381080A

CN102381080A - Method for manufacturing chalks

Info

Publication number: CN102381080A
Application number: CN2010102797369A
Authority: CN
Inventors: 朱和成
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-06
Filing date: 2010-09-06
Publication date: 2012-03-21

Abstract

The invention discloses a method for manufacturing chalks by enabling prepared raw materials in a hopper to enter a chalk package container in ways, such as extruding, filling and the like and carrying out direct forming or cured forming. By adopting the method for manufacturing the chalks, the intermediate equipment and the production process are reduced, and the method is suitable for automatic production. According to the chalks manufactured by the method, because the chalks and an outer package are in close contact and the outer package container has the function of pushing the chalks, a user directly use the chalks by holding the chalk package container by hands so as to avoid from being direct contact with the chalks, and the pollution is reduced; because the chalk package container has the function of pushing the chalks, the chalks can be used for writing while pushing and are convenient to operate, therefore the phenomenon that a large chalk head appears is avoided, and the using amount of the chalks is saved; and particularly, the method for manufacturing the chalks, disclosed by the invention, can prevent the chalks which are manufactured by water-soluble matters as raw materials under the humid weather conditions from dampening, thereby ensuring the quality of the chalks.

Description

A kind of preparation method of chalk

Technical field

The present invention relates to a kind of preparation method of chalk, it utilizes hopper to prepare raw material, then ready raw material is injected into moulding in the chalk packing container.The invention still further relates to and make a kind of and external packing that obtains through this preparation method and closely contact, and packing container has and releases the wherein chalk of chalk function.

Background technology

At present the preparation method of chalk mainly contains two kinds, and a kind of is to be raw material with land plaster, Paris white, add water reaction liquid stateization after, pour into the particular manufacturing craft curing molding, obtain finished product after the demoulding mummification; Perhaps present water-soluble chalk on the market, behind the hot melt, the moulding of perfusion particular manufacturing craft cooling curing needs to obtain finished product after the demoulding equally in hopper.Another kind is that application number is that 96116416.6 invention application discloses the parallel preparation method of extruding of a kind of many hoppers multiscrew, utilizes the binding agent characteristic in the raw material, through extrusion modling, cuts and obtains finished product.These preparation methods all are that operation is various, and all are to obtain a kind of bare product, pack or writing process in all contact with human body; Pollute finger; Various chalk sleeves have also appearred in inconvenience on the market, perhaps are with the pen cap to sell; But the trouble that installation, dismounting are all arranged, the remaining wasting problem of chalk head also can't solve.And air humidity is big the time, is also can get damp again in the chalk surface of raw material with the water-soluble substances, influences the quality and the use of product.

Summary of the invention

The objective of the invention is provides a kind of new preparation method on the production method of above-mentioned chalk, technology is simple, is fit to automated production, and the product clean hygiene that obtains, easy to use, has reduced the production of chalk and user's pollution.

For achieving the above object, the present invention has done improvement to the conventional chalk forming method that uses former to carry out: ready raw material in the hopper 1 is injected in the chalk packing container, and straight forming or curing molding obtain finished product.

This chalk packing container can be a tube.

This can be to have the tube of chalk wherein being released structure.

This can also be a lipstick cartridge on the market.

This chalk packing container can also be a bag film.

This bag film can be the pvdc bag film.

This chalk preparation method can be produced a kind ofly has external packing closely, and external packing has and releases the wherein chalk of the function of chalk.

Because ready raw material is entered in the chalk packing container through modes such as extruding or perfusions; Straight forming or curing molding have reduced middle former and production process, have obtained the product that can directly case; The packing container that has is also recyclable, has practiced thrift the energy.And the user directly uses through hand-held chalk packing container; With writing with chalk is released; Avoided contacting, reduced pollution, avoided the fracture phenomenon of chalk of writing process with the direct of chalk; The packing container that has (such as the lipstick formula) in use also can not be left the chalk head, has reached the purpose of practicing thrift.Particularly can also solve under the wet weather condition with the water-soluble substances is the moisture regain problem of the chalk of raw material, has guaranteed the quality of chalk.

Description of drawings

Fig. 1 is the schematic cross sectional view of one embodiment of the present invention.

Fig. 2 is the schematic cross sectional view of another embodiment of the invention.

Fig. 3, Fig. 4, Fig. 5 are the schematic cross sectional view of the chalk product made of the present invention.

The specific embodiment

Describe preferred forms of the present invention in detail below in conjunction with accompanying drawing.

At first referring to Fig. 1; This chalk preparation method embodiment is applicable to that ready chalk raw material is the production of the chalk of fluid; The equipment that uses comprises a hopper 1 of preparing raw material, and the chalk packing tube 3 of the similar lipstick cartridge of structure (no longer the release structure and the function of packing tube 3 being elaborated here).Said hopper 1 comprises a switch 4, and said packing tube 3 comprises screw rod turncap 8, is fixed on the screw rod 5 on the screw rod turncap 8, releases the plug screw 6 of chalk, annular soft pad plug 7.When producing, between plug screw 6 and barrel shell, ooze out, earlier the plug screw 6 on all packing tubes 3 is revolved at the bottom of tube to the greatest extent, compress annular soft pad plug 7 and cylinder shell bottom 9 subsequent use in order to prevent raw material.Then according to prescription, raw material added in hopper 1 water stirs or heat fused becomes flow-like, again packing tube 3 openings are aligned the material mouth of hopper 1; Open switch 4 dischargings, treat that raw material is filled packing tube 3 after, close top discharge switch 4; Remove packing tube 3, continue the next packing tube of can.The packing tube 3 of filling fluid chalk raw material can add upper cover and leave standstill curing, obtains finished product if the hot melt fluid then can also quicken cooling curing through other modes such as trickles.Packing tube 3 can also be side by side a plurality of, and disposable perfusion is with faster production.

Fig. 2, this chalk preparation method embodiment is applicable to that the chalk raw material has the production of close-burning chalk, and the strength of materials of packing container is also had certain requirement.The equipment that uses comprises a hopper 1 of preparing raw material, extruding motor 10, extrusion spiral bar 11, conveying pipeline 12, conveying pipeline mouth 13, and packing tube 3.Said hopper 1 comprises a material mouth 14.When producing, to conveying pipeline 12 transferring raw materials, motor 10 drives screw rods 11 rotations to hopper 1 through material mouth 9; The raw material extruding is moved and entering packing tube 3 to conveying pipeline mouth 13 directions; After packing tube 3 is full of raw material, move apart conveying pipeline mouth 13, change another packing tube and continue to produce.

Fig. 3, when using this chalk to write, hand-held packing tube 3, rotary screw turncap 8 is released the chalk 15 of curing molding, and with writing with pushing away, the time spent capped is not easy to carry, antifouling protection against the tide.

Fig. 4 when using this chalk, cuts off or opens wherein sealing of an end, pushes another sealing end, makes chalk expose from openend, and hand-held sealing end is with writing with squeezing.

Fig. 5, therefrom separated when using this chalk, be divided into two.The extruding sealing end makes chalk expose from openend, and hand-held sealing end is write, with writing with squeezing.

Certainly; Adopt the preparation method of this chalk, can also adopt automatic production line production, such as adopting the pvdc film; KAP or the ligation of ADP clipper through production process of producation of Ham intestines line are shaped, and producing a kind of diameter is the ham sausage formula chalk (like Fig. 4, Fig. 5) of 4-22cm; Perhaps adopt similar bottle oral liquid automatic production line, produce the chalk (like Fig. 3) of lipstick formula; Also can to adopt the cross section be other shapes such as many ribs type to the chalk packing container in addition; Such conversion all drops within protection scope of the present invention.

Claims

1. the preparation method of a chalk.Comprise that utilizing hopper (1) to prepare raw material carries out the moulding of chalk with the use former, it is characterized in that: the forming process of chalk is that ready raw material is injected the interior moulding of chalk packing container (3).

2. chalk preparation method according to claim 1 is characterized in that: chalk packing container (3) is a tube.

3. chalk preparation method according to claim 2 is characterized in that: chalk packing container (3) is to have the tube of chalk wherein being released structure.

4. chalk preparation method according to claim 3 is characterized in that: chalk packing container (3) is a lipstick cartridge on the market.

5. chalk preparation method according to claim 1 is characterized in that: chalk packing container (3) is a bag film.

6. chalk preparation method according to claim 5 is characterized in that: chalk packing container (3) is the pvdc bag film.

7. chalk of making according to claim 3 or 5 described chalk preparation methods, it is characterized in that: said chalk closely contacts with external packing, and chalk packing container (3) has the function of release chalk.