CN102059771A

CN102059771A - Forming method of plastic hollow container

Info

Publication number: CN102059771A
Application number: CN2009102243083A
Authority: CN
Inventors: 苏彦宾
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-17
Filing date: 2009-11-17
Publication date: 2011-05-18

Abstract

The invention relates to a forming method of a plastic hollow container which is formed by mainly using common plastic to be ejected. In the method, firstly, a plastic product with inner and outer layers is ejected; the formed plastic glued product with the inner and outer layers is respectively placed in a male module and a female module by means of a special module; and the male module and the female module are combined, and then the opening is closed after the plastic product with the inner and outer layers is overlapped by matching a plastic ejection mode so as to form a hollow plastic container product. The formed plastic hollow container has the advantages of high strength, excellent hermetical effect, and progressive and practicable functions.

Description

The manufacturing process of plastic hollow vessel

Technical field

The present invention relates to a kind of plastic shaping method, be particularly related to a kind of manufacturing process of plastic hollow vessel, it mainly is to rely on a mould that the plastic products of inside and outside layer are inserted the male and female mould respectively, behind the matched moulds and utilize the plastics shoot mode with inside and outside layer plastic products the opening closure after superimposed, finish the processing procedure of plastic hollow vessel.

Background technology

How plastic containers (as cup) not tube shape change, because the relation of the demoulding, the plastic containers of this ejection formation generally all can't be made hollow.Yet, because of the epoch progressive, living standard promotes day by day, the plastic containers that some daily lifes are used often, except stressing practicality, some moulding or structural variation, these type of commodity test of whether being in great demand often.And be to overcome the disappearance that plastic containers can't penetrate hollow product, usual way all is to utilize the conventional plastic emission technology to penetrate inside and outside cup earlier, then inside and outside cup is superimposed with each other, again with the opening between inside and outside cup, rely on glutinous agent to stick together joint, reach the purpose that forms a hollow plastic container.Yet, relatively poor because of the adhesive means adaptation, have aqueous vapor to enter hollow inside easily, and intensity is also poor by the slit, when container drops because of carelessness, or the collision power is when big, can impel all that to stick together the place cracked, and practicality is unsatisfactory.

So the mode of progress is that high frequency is sewed up, it relies on the rim of a cup thawing combination of the high temperature of high frequency generation with inside and outside cup, and reaches the making of finishing hollow plastic container.Yet, when its topmost disappearance is that the inside and outside cup of these plastics is subjected to the high frequency high temperature melt, molecular structure can be destroyed, so the intensity after merging is more weak and frangible, if drop because of carelessness or collide power when excessive, this fusion place is also broken easily or produced the slit, and aqueous vapor is entered, and is still imperfect in the use.

The inventor specializes in the research and development of penetrating product in plastics, know very well traditional hollow container to use to satisfy required, so do one's utmost the road that figure thinks deeply reform, and the specialty of cooperation itself and working experience for many years, finally go through for several times test, revise with improvement after, and birth of the present invention is arranged.

Summary of the invention

The object of the present invention is to provide a kind of forming method of plastic hollow vessel, it relies on a mould that the plastic products of inside and outside layer are inserted the male and female mould respectively, behind the matched moulds and utilize the plastics shoot mode with inside and outside layer plastic products the opening closure after superimposed, finish the processing procedure of plastic hollow vessel.

For reaching above-mentioned purpose, the forming method of a kind of plastic hollow vessel of the present invention, it mainly is the plastic products with inside and outside layer, rely on a special mould that inside and outside layer plastic products are inserted matched moulds after, utilize the plastics shoot mode with the opening closure again, finish the processing procedure of plastic hollow vessel; This plastic hollow vessel (as cup), it is with cup outside the interior cup of ejection formation reaches, be combined into one via plastics injection molding technology once more, wherein, after cup and outer cup penetrate and finish in this, utilize a mould, in master mold, offer the die cavity that cup is inserted outside the confession, and in male model, be provided with a mould post of inserting for interior glass holder, and when relying on plastics to penetrate behind the matched moulds with interior cup and outer cup top, suit place closure, the formation plastic hollow vessel.

The manufacturing process of described plastic hollow vessel, wherein, the fit position of the male model of this mould and master mold and interior cup and outer cup can exchange.

The manufacturing process of described plastic hollow vessel, wherein, the closing end after cup and outer glass holder close in this is located at the bottom.

During enforcement, this plastic hollow vessel, according to interior, the design of outer cup, offer respectively in mould penetrates in advance, the plastic products of outer cup, one special dies is set then, respectively outer cup is inserted in the master mold, and interior cup is put in the feature die, and cup is a little more than outer cup in being somebody's turn to do, behind matched moulds again via plastics emission technology mode, will in, the opening closure of outer cup, integrally formed just as plastics, and ejaculation temperature stabilization, molecule is difficult for being damaged, so intensity is enough, watertightness is good, does not only have aqueous vapor and enters hollow inside, and impact resistance obviously is different from traditional plastic hollow vessel.

Description of drawings

Fig. 1 is the side sectional view of the outer cup of the present invention;

Fig. 2 is the side sectional view of cup in the present invention;

Fig. 3 is the fashionable side sectional view of the inside and outside glass holder of the present invention;

Fig. 4 is the side sectional view of mould of the present invention;

Fig. 5 inserts the schematic diagram of mould for the inside and outside cup of the present invention;

The schematic diagram of Fig. 6 during for matched moulds of the present invention;

Schematic perspective view when Fig. 7 finishes for the present invention.

The outer cup of description of reference numerals: 1-; 10,20-tank; The 11-gap; Cup in the 2-; The 3-mould; The 31-master mold; The 310-die cavity; The 32-male model; 320-mould post; The 321-hand-hole.

The specific embodiment

At first, see also shown in Figure 1ly, be the outer cup cutaway view of one embodiment of the invention, it is to rely on general plastics injection molding technology to be finished, and offers the mould (not shown) earlier, utilizes 1 moulding of injection molding one outer cup then, should have a tank 10 by outer cup 1, and can select different change color.Secondly, please continue to consult shown in Figure 2, interior cup cutaway view for one embodiment of the invention, the external diameter of cup 2 is slightly less than the internal diameter of outer cup 1 in being somebody's turn to do, be formed with a tank 20 equally, when interior cup 2 was inserted the tank 10 of outer cup 1,2,1 in inside and outside cup can be formed with gap 11 (as shown in Figure 1) and utilize the plastics emission technology equally as for interior glass 2, and first injection molding is standby.

When inside and outside cup 2,1 in conjunction with the time, cooperation is consulted shown in Figure 3, in the time of should being placed in the tank 10 of outer cup 1 for interior glass 2, this top end opening place is a little more than the open top end of outer cup 1, and make 2,1 gaps 11 that are formed with hollow of inside and outside cup, especially this inside and outside cup 2,1 is except that variation in moulding, and can utilize different colours to change, and reaches the visible change of solid or level.

Please continue to consult shown in Figure 4, be the mould schematic diagram of the present invention when penetrating, mainly be still and formed by feature die, the master mold 31 of this mould 3 offers die cavity 310, it is identical with the moulding of outer cup 1, and male model 32 is provided with mould post 320, in the time of can working as male and

female mould

32,31 matched moulds, is placed in the die cavity 310.And this feature die 32,31 also can make the die cavity 310 of master mold 31 into the mould post, and the mould post 320 of male model 32 makes die cavity into, then during feature die 32,31 matched moulds, the mould post is inserted in the die cavity.

When penetrating, then consult shown in Figure 5, earlier outer cup 1 is inserted in the die cavity 310 of master mold 31, again interior cup 2 is placed on the mould post 320 of male model 32, at last with

groove tool

31,32 matched moulds (as Fig. 6), then this inside and outside cup 2,1 can be superimposed with each other together, the interior cup 2 of this moment and a little more than outer cup 1, and this mould 3 is (being the joint top of inside and outside cup 2,1) on male model 32, offers hand-hole 321.When carrying out the rim of a cup injection molding, can select the plastics that are same or different from inside and outside cup 2,1 material for use, inject by hand-hole 321, and the gap fill that interior cup 2 is reached outer glass 1 socket place top seals, it is that temperature when relying on plastics to penetrate is fused into one (join shown in Figure 7) with interior cup 2 and outer cup 1, can be with interior cup 2 and outer cup 1 top closure really, and finish via ejaculation, just as integrally formed, move back the plastic containers processing procedure that to finish hollow behind the mould.This inside and outside cup 2,1 will be when penetrating in addition, also can be about to earlier be linked in together for inside and outside glass 2,1, insert in the die cavity 310 of master mold 31 then or be placed on the mould post 320 of male model 32, behind matched moulds, can the plastics material be injected and carry out rim of a cup and be shaped by hand-hole 321.So the plastic hollow vessel that uses this method to make, obviously have following advantage:

(1) the present invention relies on mould 3 with interior cup 2 and outer cup 1 fit, and carries out injection molding, with interior cup 2 and outer cup 1 top closure, just as integrally formed ejaculation finished product.

(2) the present invention utilizes the moulding of plastics emission technology, and temperature is comparatively stable, thus molecular structure be difficult for destroyed, so joint can be not cracked.

(3) plastic hollow vessel made of the present invention, just as integrally formed, intensity is splendid, anti-ly heavyly fall, collide, and cup 2 and outer cup 1 breaks away from can not making.

(4) the present invention utilizes plastics to penetrate interior cup 2 and outer cup 1 top closure, and cup 2 and outer cup 1 are fused into one in making, and can be fully that gap 11 is airtight, and watertightness is splendid, does not have slit water supply gas fully and enters.

In sum, the present invention mainly is the plastic products with inside and outside layer, rely on a special mould that inside and outside layer plastic products are inserted matched moulds after, utilize the plastics shoot mode with the opening closure again, finish the processing procedure of plastic hollow vessel, can reach high strength, the good plastic hollow vessel of watertightness.。

The above person only, only be preferred embodiment of the present invention, when can not limiting scope of the invention process, so the displacement of the change of numerical value or equivalent elements such as with this, or, all should still belong to the category that patent of the present invention contains according to equalization variation and modification that the present patent application claim is done.

Claims

1. the manufacturing process of a plastic hollow vessel, it is with cup outside the interior cup of ejection formation reaches, be combined into one via plastics injection molding technology once more, it is characterized in that: after cup and outer cup penetrate and finish in this, utilize a mould, in master mold, offer the die cavity that cup is inserted outside the confession, and in male model, be provided with a mould post that supplies interior glass holder to insert, when relying on plastics to penetrate behind the matched moulds with interior cup and outer cup top, suit place closure, formation plastic hollow vessel.

2. the manufacturing process of plastic hollow vessel according to claim 1 is characterized in that, the fit position of the male model of this mould and master mold and interior cup and outer cup can exchange.

3. the manufacturing process of plastic hollow vessel according to claim 1 is characterized in that, the closing end after cup and outer glass holder close in this is located at the bottom.