CN101585231A

CN101585231A - Manufacturing method of biodegradable vessel

Info

Publication number: CN101585231A
Application number: CNA2008100977196A
Authority: CN
Inventors: 黄仕颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-20
Filing date: 2008-05-20
Publication date: 2009-11-25

Abstract

The invention provides a manufacturing method of a biodegradable vessel, comprising the following steps: providing a cup body with a cup bottom and a cup rim; putting a bottom lid at the cup bottom of the cup body; heating the cup bottom and the bottom lid so that the cup bottom and the bottom lid have plasticity; and pressing the cup bottom and the bottom lid to form an annular flange on the cup bottom, wherein the cup body and the bottom cover are both made of biological decomposition material, which is different from injection molding.

Description

The manufacture method of biodegradable vessel

Technical field

The present invention is about the manufacture method of a kind of manufacture method of container, particularly a kind of biodegradable vessel.

Background technology

Because advantages such as plastics have that density is little, acid and alkali-resistance, waterproof, antirust, insulation have become material indispensable in the human clothing, food, lodging and transportion--basic necessities of life so show.

Plastics generally can be divided into two kinds of thermoplasticity and thermosettings, and under normal circumstances, thermoplastic solidifies is because mobile step-down, but not chemical reaction takes place, so it can be processed repeatedly through mode of heating; And thermosetting plastics originally independently forms network structure because of crosslinked bridge formation between the molecule individually behind curing molding, thus there is chemical reaction to take place, thereby can't see through the state before mode of heating is got back to curing again.

Because thermoplastic has the advantage of plastic material and the characteristic of easily processing simultaneously, so widely used by the mankind.And on the manufacture method of plastic containers, for example plastic cup, plastic bottle, Plastic Drum etc., generally all adopt two kinds of blowing moulding and ejection formations, common PET bottle and plastic bottle are to utilize ejection formation to form the bottle embryo earlier, see through blowing moulding again and form body, plastic cup then is a mode of utilizing ejection formation.

Utilizing ejection formation to make plastic cup is the cheap method that reaches quite rapidly, especially concerning the plastics industry practitioner, the processing procedure of mentioning plastic cup is directly associated ejection formation especially and is not done him and think, yet when but same method is applied on the biology decomposing material, will derive problems.

But the biology decomposing material also is a kind of of thermoplastic material, but because physical characteristic (as: percentage elongation, crystallization temperature, flowability etc.) difference, difficulty of processing is more high than conventional plastic material, especially processing procedure foams, but if be foamed substrate with the biology decomposing material, for example PLA (PLA) may be made into plastic cup with ejection formation or extrusion sheet material final vacuum molding mode hardly.This is because but the melt temperature of biology decomposing material is big inadequately with the operative temperature gap of general blowing agent, therefore in PLA and the mixing process of blowing agent before ejection formation, blowing agent just can act on gradually and volatilize totally, unless therefore see through other comparatively expensive foaming formality, for example high-pressure physics foaming, but otherwise and can't utilize traditional molding mode to obtain by the made container of biology decomposing material that foams.

In addition, if but the biology decomposing material that directly will not foam is as the ejection formation or the raw material of extrusion sheet material final vacuum moulding, because not foaming, and rerum naturas such as percentage elongation, crystallization temperature, flowability are not suitable for processing and forming, therefore not only weight is heavier, material cost is high and thermal insulation is not good yet for produced container, quite do not meet the economic benefit and the market demand, so the problems referred to above are demanded relevant practitioner urgently and are improved.

Summary of the invention

In view of this, the present invention proposes a kind of manufacture method of biodegradable vessel, comprises the following step: a glass body be provided, place bottom, at the bottom of the Heating Cup with at the bottom of bottom and the pressing cup and bottom.

Wherein, at the bottom of a cup body has glass and rim of a cup; Bottom is positioned over the cup end of glass body; At the bottom of the Heating Cup and the purpose of bottom be to make glass at the bottom of and the softening tool plasticity of bottom; Purpose with bottom at the bottom of the pressing cup is to form collar flange at the bottom of cup, and collar flange is more firm when container is placed, and is difficult for toppling over.

In addition, but above-mentioned cup body and bowl cover all are made by the biology decomposing material, thereby through aforesaid step, that is utilize prefabricated cup body and bottom, can obtain by the made container of biology decomposing material but need not ejection formation or vacuum forming step, but or even by the made container of biology decomposing material that foams.

Therefore, but the invention solves the container that known utilization biology decomposing material is made, the weight that is had is heavier, material cost is high and problem such as thermal insulation difference.

Relevant embodiments of the invention and effect thereof, cooperate now illustrate as after.

Description of drawings

Fig. 1 is a preparation method flow chart of the present invention;

Fig. 2 A is a cup body schematic diagram;

Fig. 2 B is the profile of cup body;

Fig. 2 C is a processing schematic diagram of the present invention (1);

Fig. 2 D is a processing schematic diagram of the present invention (2);

Fig. 2 E is a processing schematic diagram of the present invention (3);

Fig. 2 F is a processing schematic diagram of the present invention (4);

Fig. 2 G is a processing schematic diagram of the present invention (5);

Fig. 3 is the preparation method flow chart of cup lip;

Fig. 4 A is the processing schematic diagram (1) of cup lip;

Fig. 4 B is the processing schematic diagram (2) of cup lip;

Fig. 4 C is the processing schematic diagram (3) of cup lip;

Fig. 4 D is the processing schematic diagram (4) of cup lip;

Fig. 4 E is the processing schematic diagram (5) of cup lip;

Fig. 5 A is the processing schematic diagram (6) of cup lip;

Fig. 5 B is the processing schematic diagram (7) of cup lip;

Fig. 5 C is the processing schematic diagram (8) of cup lip;

Fig. 5 D is the processing schematic diagram (9) of cup lip;

Fig. 6 A is fanning strip schematic diagram (1);

Fig. 6 B is fanning strip schematic diagram (2);

Fig. 6 C is fanning strip schematic diagram (3);

Fig. 7 A is the bellend schematic diagram;

Fig. 7 B is folded cup schematic diagram (1);

Fig. 8 A is two block schematic diagrames;

Fig. 8 B is folded cup schematic diagram (2);

Fig. 9 A is four block schematic diagrames;

Fig. 9 B is folded cup schematic diagram (3).

The primary clustering symbol description

21.......... cup body

211.......... the cup end

212.......... rim of a cup

22.......... bottom

23.......... collar flange

25.......... first glass of mould

26.......... heater

27.......... first patrix

271.......... annular recess

41.......... second glass of mould

42.......... second patrix

43.......... cup lip

51.......... ring-type raised line

60.......... fanning strip

61.......... first welt

62.......... second welt

63.......... first recess

64.......... second recess

65.......... first angle

66.......... second angle

67.......... first indentation

68.......... second indentation

71.......... bellend

81.......... block

The specific embodiment

Please refer to Fig. 1, be preparation method flow chart of the present invention, comprise the following step:

Step 101: a glass body is provided.

Please refer to Fig. 2 A, 2B, be respectively glass body schematic diagram and cup body profile, comprise glass body 21, the cup end 211 and rim of a cup 212, cup body 21 is the hollow tube-shape of both ends open.

But the cup body 21 material be the biology decomposing material, present embodiment be to use PLA (PLA) as the cup body 21 material, wherein, PLA (PLA) but belong to a kind of of biology decomposing material.

Step 102: place bottom.

Please refer to Fig. 2 C, for processing schematic diagram of the present invention (1), except that cup body 21, comprise bottom 22, first glass of mould 25 and heater 26, the material of the bottom 22 of present embodiment is identical with cup body 21.

This step is the top that bottom 22 is positioned over first glass of mould 25, and the rim of a cup 212 with cup body 21 is put on first glass of mould 25 towards trapping then, and the cup end 211 be higher than the upper surface of bottom 22, shown in Fig. 2 C.

Step 103: at the bottom of the Heating Cup.

Because the glass transition temperature of PLA (PLA) is 60 ℃, thus heater 26 must Heating Cups at the bottom of 211 and bottom more than 22 to 60 ℃, at the bottom of can making glass 211 and bottom 22 softening tool plasticity.

Mode of heating has following two kinds of patterns shown in Fig. 2 C: the position of fixed heater 26, first glass of mould 25 rotation then; And heater 26 moves around 211 edge at the bottom of the cup, and first glass of mould 25 maintains static.

Or shown in Fig. 2 D, the heating surface (area) (HS of heater 26 is strengthened, and is arranged at bottom 22 tops, make heater 26 can be simultaneously at the bottom of one or more glass 211 and bottom 22 heating.

Step 104: the bending cup end.

Please refer to Fig. 2 E, be processing schematic diagram of the present invention (3), after 22 heating of the cup end 211 and bottom finish, can will 211 curve inwardly at the bottom of the cup, this step helps the carrying out of step 105, but and inessential.

Step 105: at the bottom of the pressing cup.

Please refer to Fig. 2 F, 2G, be processing schematic diagram of the present invention (4), (5), utilize at the bottom of first patrix, the 27 pressing cups with annular recess 271 211 with bottom 22, and at the bottom of cup, 211 form collar flanges 23, collar flange 23 is more firm when container is placed, and is difficult for toppling over.

Please refer to Fig. 3, the preparation method flow chart for the cup lip comprises the following step:

Step 301: place the cup body.

Please refer to Fig. 4 A, be the processing schematic diagram (1) of cup lip, with the rim of a cup 212 of cup body 21 up, and be positioned on second glass of mould 41.

Step 302: heating rim of a cup.

Please refer to Fig. 4 B, processing schematic diagram (2) for the cup lip, because the glass transition temperature of PLA (PLA) is 60 ℃, therefore heater 26 must heat rim of a cup more than 212 to 60 ℃, can make rim of a cup 212 softening tool plasticity, mode of heating such as step 103 have three kinds of mode of heatings, in this repeated description no longer.

Step 303: bending rim of a cup.

Please refer to Fig. 4 C, be the processing schematic diagram (3) of cup lip, after rim of a cup 212 heating finish, can rim of a cup 212 is outwardly-bent, this step helps the carrying out of step 304, but and inessential.

Step 304: give as security the compression cup mouth.

Please refer to Fig. 4 D, 4E, be processing schematic diagram (4), (5) of cup lip, utilize second patrix 42 to give as security compression cup mouth 212, form cup lip 43 in rim of a cup 212.

Please refer to Fig. 5 A, 5B, be processing schematic diagram (6), (7) of cup lip, utilize the ring-type raised line 51 of second glass of mould 41 upper surface, change the length-width ratio of cup lip 43, thereby make glass lip 43 can bear bigger external force and unlikely fracture.

Please refer to Fig. 5 C, 5D, be processing schematic diagram (8), (9) of cup lip, utilize the ring-type raised line 51 of second patrix, 42 lower surfaces, change the length-width ratio of cup lip 43, thereby make glass lip 43 can bear bigger external force and unlikely fracture.

Please refer to Fig. 6 A, be fanning strip schematic diagram (1), fanning strip 60 has first welt 61 and second welt 62, and first welt 61 has first recess 63, second welt 62 has second recess 64 with respect to first recess 63, first recess 63 of first welt 61 is connected in second recess 64 of second welt 62, can obtains glass body 21.

Please refer to Fig. 6 B, be fanning strip schematic diagram (2), fanning strip 60 has first welt 61 and second welt 62, and first welt 61 has first angle 65, second welt 62 has second angle 66 with respect to first angle 65, first angle 65 of first welt 61 is connected in second angle 66 of second welt 62, can obtains glass body 21.

Please refer to Fig. 6 C, be fanning strip schematic diagram (3), fanning strip 60 has first welt 61 and second welt 62, and first welt 61 has first indentation 67, second welt 62 has second indentation 68 with respect to first indentation 67, first indentation 67 of first welt 61 is connected in second indentation 68 of second welt 62, can obtains glass body 21.

The various different shapes of first welt 61 shown in above-mentioned Fig. 6 A, 6B and the 6C and second welt 62, be in order to solve the problem that the local thickness's inequality that is caused when first welt 61 and second welt 62 are fitted causes the surface irregularity of glass body 21, if the surface irregularity of cup body 21, difficulty will take place in then follow-up desire impressing pattern when cup body 21 surfaces.

Please refer to Fig. 7 A, be the bellend schematic diagram, wherein last figure is the profile of biodegradable vessel, figure below is its upward view, bellend 71 is when being stacked over another biodegradable vessel top when a biodegradable vessel, prop up the rim of a cup 212 of the biodegradable vessel of below by bellend 71, and avoid the biodegradable vessel of two mutual storehouses to block not segregative situation generation each other, shown in Fig. 7 B.

Please refer to Fig. 8 A and 8B,, two blocks 81 are set, reach effect as above-mentioned bellend 71 by outer surface in cup body 21 for two block schematic diagrames and folded cup schematic diagram (2).

Please refer to Fig. 9 A and 9B,, four blocks 81 are set, reach effect as above-mentioned bellend 71 by outer surface in cup body 21 for fourth gear piece schematic diagram and folded cup schematic diagram (3).

The various different shapes of first welt 61 shown in above-mentioned Fig. 7 A to Fig. 9 B and second welt 62 all are in order to solve a plurality of biodegradable vessels and to be stacked over another biodegradable vessel top, the situation of the contingent card of institute glass.

Though technology contents of the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this skill person; do not breaking away from spirit of the present invention a little change and the retouching done; all should be covered by in the category of the present invention, so protection scope of the present invention is as the criterion when looking the claim person of defining.

Claims

1, a kind of manufacture method of biodegradable vessel comprises the following step:

But provide by one glass of made body of biology decomposing material, at the bottom of this glass body has one glass and a rim of a cup;

But placement by the made bottom of biology decomposing material in this glass bottom of this glass body;

Heat at the bottom of this glass and this bottom, make at the bottom of this glass and the softening tool plasticity of this bottom; And

Form a collar flange in this glass bottom with this bottom at the bottom of this glass of pressing.

2, the manufacture method of biodegradable vessel as claimed in claim 1 is characterized in that: at the bottom of this glass of heating and in this bottom step, be to be heated at the bottom of this glass and more than the glass transition temperature of the material of this bottom.

3, the manufacture method of biodegradable vessel as claimed in claim 1 is characterized in that: at the bottom of this glass of heating and after this bottom step, more comprise the following step:

Bend at the bottom of this glass, curve inwardly at the bottom of making this glass.

4, the manufacture method of biodegradable vessel as claimed in claim 1 is characterized in that: in placing this bottom step, this bottom is the top that is positioned over one first glass of mould, and this rim of a cup of this glass body also overlaps down and is put on this first glass of mould.

5, the manufacture method of biodegradable vessel as claimed in claim 4 is characterized in that: at the bottom of this glass of pressing with this bottom step in, be with at the bottom of one first this glass of patrix pressing with an annular recess with this bottom, and at the bottom of this glass, form this collar flange.

6, the manufacture method of biodegradable vessel as claimed in claim 1 is characterized in that: more comprise the following step:

Heat this rim of a cup, make this rim of a cup soften tool plasticity; And

Give as security this rim of a cup of pressure and form one glass of lip in this rim of a cup place.

7, the manufacture method of biodegradable vessel as claimed in claim 6 is characterized in that: in this rim of a cup step of heating, be to be heated to more than the glass transition temperature of this rim of a cup.

8, the manufacture method of biodegradable vessel as claimed in claim 6 is characterized in that: after this rim of a cup being heated to the above step of its glass transition temperature, more comprise the following step:

Bend this rim of a cup, make this rim of a cup outwardly-bent.

9, the manufacture method of biodegradable vessel as claimed in claim 6 is characterized in that: in this rim of a cup step of heating, this rim of a cup of this glass body up and be positioned on one second glass of mould.

10, the manufacture method of biodegradable vessel as claimed in claim 9 is characterized in that: pressing in this rim of a cup step in giving as security, is to press this rim of a cup and form this glass lip in this rim of a cup to give as security corresponding to one second patrix of this rim of a cup.

11, the manufacture method of biodegradable vessel as claimed in claim 10 is characterized in that: the upper surface of this second glass of mould has a ring-type raised line, and this ring-type raised line is in order to changing the external form of this glass lip, and then improves the intensity of this glass lip.

12, the manufacture method of biodegradable vessel as claimed in claim 10 is characterized in that: the lower surface of this second patrix has a ring-type raised line, and this ring-type raised line is in order to changing the external form of this glass lip, and then improves the intensity of this glass lip.

13, the manufacture method of biodegradable vessel as claimed in claim 1 is characterized in that: but the material of this glass body and this bottom is the biology decomposing material.

14, the manufacture method of biodegradable vessel as claimed in claim 13 is characterized in that: the material of this glass body and this bottom is a PLA.

15, the manufacture method of biodegradable vessel as claimed in claim 1 is characterized in that: the manufacture method of this glass body comprises the following step:

One fanning strip is provided, and both sides have one first welt and one second welt respectively; And

Connect this first welt in this second welt.

16, the manufacture method of biodegradable vessel as claimed in claim 15 is characterized in that: this first welt has one first recess, and this second welt has one second recess with respect to this first recess.

17, the manufacture method of biodegradable vessel as claimed in claim 15 is characterized in that: this first welt has one first angle, and this second welt has one second angle with respect to this first angle.

18, the manufacture method of biodegradable vessel as claimed in claim 15 is characterized in that: this first welt has one first indentation, and this second welt has one second indentation with respect to this first indentation.

19, the manufacture method of biodegradable vessel as claimed in claim 1, it is characterized in that: the outer surface of this glass body has a bellend, when this glass body is stacked over another this cup when side on one's body, avoid this glass body and another this glass body to block not segregative situation generation each other by this bellend.

20, the manufacture method of biodegradable vessel as claimed in claim 1, it is characterized in that: the outer surface of this glass body has a plurality of blocks, when this glass body is stacked over another this cup when side on one's body, avoid this glass body and another this glass body to block not segregative situation generation each other by those blocks.