CN101970196A

CN101970196A - A preform and a mold stack for producing the preform

Info

Publication number: CN101970196A
Application number: CN2009801091698A
Authority: CN
Inventors: 让-克里斯托夫·维茨; 阿诺德·马伊; 劳伦特·克里斯特尔·西格勒
Original assignee: Husky Injection Molding Systems Ltd
Current assignee: Husky Injection Molding Systems Ltd
Priority date: 2008-03-26
Filing date: 2009-02-13
Publication date: 2011-02-09
Also published as: EP2271469A1; EP2271469A4; CA2716258A1; US20100326947A1; WO2009117805A1

Abstract

Disclosed herein are a preform (500) and a mold stack for producing the preform (500). The preform (500) is suitable for blow-molding into a final-shaped container. The preform (500) comprises a neck portion (502); a gate portion (506); and a body portion (504) extending between said neck portion (502) and said gate portion (506); the neck portion (502) including a support ledge (512), the support ledge (512) being associated with a metal contacting surface (520) and a weight, and wherein a ratio of the metal contacting surface (520) to the weight modulated for a base line support ledge thickness curve is selected in a range of between 0.1 and 1000.

Description

Preformed member and be used to produce the mold stack of described preformed member

Technical field

The present invention relates generally to but be not limited to molding-system and technology, and more particularly the present invention relates to but be not limited to a kind of preformed member and be used to produce the mold stack of described preformed member.

Background technology

Molded is to form technology through molded article by using molding-system by moulding material by it.Can molding process such as injection molding process forms various through molded article by for example using.An example through molded article that can (for example) be formed by PET (PET) material is that blown-moulding is the preformed member of container for drink (for example, bottle etc.) subsequently.

As an illustration, the injection-molded of PET material with the PET material (for example relates to, PET bead, PEN powder, PLA etc.) be heated to even molten condition and under pressure, the PET material of described fusion like this be expelled in the molding cavity, described molding cavity is defined by cloudy chamber part on chamber plate that is installed in mould respectively and the central layer and positive chipware at least in part.Described chamber plate and central layer are pushed together and are retained on together by clamping force, described clamping force be enough to resist inject the pressure of PET material and described cloudy chamber part and described positive chipware kept together.Described molding cavity has roughly the shape corresponding to final cold-state shape through molded article to be molded.So the PET material of injection then is cooled to be enough to realize ejecting from mould the temperature through molded article of formation like this.When cooling, in the molding cavity internal contraction, and so,, often keep being associated with positive chipware through molded article when chamber plate and central layer are pushed when separating through molded article.After this, can eject from described positive chipware through molded article described by using suitable ejecting structure.Known several ejecting structures remove through molded article from positive chipware in order to auxiliary.The example of described ejecting structure comprises stripper plate, stripper ring and neck ring, backing-out punch pin etc.

With reference to Fig. 1, it describes preformed member 100, and described preformed member 100 is the example of typical prior art preformed member.Preformed member 100 is made up of neck portion 102, gate portions 106 and the body portion 104 that extends between described neck portion 102 and the described gate portions 106.

Preformed member 100 has several supernumerary structure features that realize one or more functions.For instance, in neck portion 102, provide screw thread 108.The purposes of screw thread 108 is to cooperate with the complementary threads of locking device (not describing) with the material that contained in the container of keeping the net shape that produces from preformed member 100 (for example, beverage etc.) (when the container of this net shape of blown-moulding and its finally are filled with described material).Described neck portion 102 further comprises anti-theft ring 110.The purposes of anti-theft ring 110 be cooperate with the complementary theft-prevention structure of described locking device (not describing) with when the container of the net shape that produces from preformed member 100 is destroyed with the sealing between the described locking device (not describing) (or in simple terms, when described locking device is opened at least in part with the container of the described net shape that produces from described preformed member 100) provide vision to indicate.

In addition, described neck portion 102 comprises support convex edge 112.The a plurality of functions of described support convex edge 112 performances, include but not limited to, in the generation of preformed member 100 (for instance, with ejecting structure and/or dispose structure and cooperate) and the container of described net shape during the injection-molded and blown-moulding stage of the generation of described preformed member 100 (for instance, cooperate seal and/or cooperate with the disposal structure etc.), cooperate with various disposal plants and structure to provide with the blown-moulding equipment.The typical embodiments of described support convex edge 112 comprises annular protrusion substantially.In general, described support convex edge 112 has external rings 112a and inner loop 112b, defines moulding material ring 112c between it.

Another example that can how to implement to support convex edge 112 is depicted among Fig. 2.Fig. 2 describes the perspective view of the part of preformed member 200, and more particularly describes the part of neck portion 202 and body portion 204.Except that described concrete difference hereinafter, neck portion 202 roughly is similar to neck portion 102.Neck portion 202 comprises support convex edge 212.Described support convex edge 212 is being similar to the support convex edge 112 of Fig. 1 in nature for annular substantially.Yet, in this embodiment, support convex edge 212 and further comprise a plurality of inclined-planes 214 that are defined on the outer upper end of supporting convex edge 212.The example of this preformed member 200 or under trade (brand) name PET-CYCLE, sold and can be about more details of this design at http://www.petcycle.de/einleitung.html) find.The purposes on described a plurality of inclined-plane 214 is to provide the vision indication to consumer's (or another entity), and the preformed member 200 that promptly has the support convex edge 212 that wherein defines described a plurality of inclined-plane 214 has the indication of particular characteristics.Under this particular case, described characteristic is disposable (also being called unidirectional) container for drink and can recycles difference between the container for drink.

Continuation as an example, divides 102 for mold neck with reference to Fig. 1 and neck portion 102, uses a pair of assembled die inserts.With reference to Fig. 3 A and Fig. 3 B, it describes the example of a pair of assembled die inserts 302, and wherein Fig. 3 A describes described perspective view and Fig. 3 B to assembled die inserts 302 and describes described to the sectional view of assembled die inserts 302 along the planar interception on the plane of crossing described split line to assembled die inserts 302 (not describing).It should be noted that the those skilled in the art also is called " neck ring " with described to assembled die inserts 302 sometimes.Described assembled die inserts 302 is comprised the first assembled die inserts 304 and the second assembled die inserts 306.In described first assembled die inserts 304 and the described second assembled die inserts 306 each comprises the molded surface that is used for defining through at least a portion of the neck portion 102 of molded article 100 and defines part 308 (only indicating an one example at Fig. 3 B for simplicity's sake).Described molded surface defines part 308 to have

(i) be used to define first subdivision 314 of a part that supports convex edge 112;

(ii) be used to define second subdivision 312 of the part of anti-theft ring 110; And

(iii) be used to define the 3rd subdivision 310 of the part of screw thread 108.

In the explanation that is above provided, term " part " mean by the corresponding components that define in described first assembled die inserts 304 and the described second assembled die inserts 304 (for example, screw thread 108, anti-theft ring 110 and support convex edge 112) roughly half.

It should be noted that each described first subdivision 314 in described first assembled die inserts 304 and the described second assembled die inserts 306 comprises semi-circular groove substantially.

Described example to assembled die inserts 302 is disclosed in gives openly on December 21st, 2006 that Du Bisi people's such as (Dubuis) have open case number 2006/0283210 own together in the U.S. patent application case, and it discloses for the mould split type inserts that uses in molded stack assemblies, and in particular for the preformed member mould neck ring inserts that uses in the injection-molded stack assemblies that is used for making bottle mould preformed member and other.Described split type inserts comprises the body that disposes molded surface on it.Described split type inserts also comprises the cooling duct that is disposed in the described body, wherein is furnished with subregion.Described subregion is divided into first branch and second branch with the part of described cooling duct.Dispose between the described branch and shift the cooling duct.

Summary of the invention

According to the of the present invention first extensive aspect, it is the preformed member of the container of net shape that a kind of suitable blown-moulding is provided.Described preformed member comprises: neck portion; Gate portions; And body portion, it extends between described neck portion and the described gate portions; Described neck portion comprises the support convex edge, described support convex edge is associated with Metal Contact surface and weight, and the ratio that wherein supports the described Metal Contact surface of convex edge thickness curve modulation and described weight at baseline is in through selection in the scope between 0.1 and 1000.

According to the of the present invention second extensive aspect, provide a kind of assembled die inserts that is used to define the neck portion at least of preformed member.Described assembled die inserts comprise have molded surface define the part body, described part comprises first subdivision of the part of the support convex edge that is used in use defining described neck portion, and described support convex edge is associated with Metal Contact surface, weight and thickness; Described first subdivision is associated with cardinal principle scallop geometry, described cardinal principle scallop geometry is defined as with the described Metal Contact that supports convex edge thickness curve adjustment at baseline is surperficial through selecting so that with described support convex edge and is associated with the ratio of described weight, and described ratio is in through selection in the scope between 0.1 and 1000.

According to the of the present invention the 3rd extensive aspect, it is the preformed member of the container of net shape that a kind of suitable blown-moulding is provided.Described preformed member comprises: neck portion; Gate portions; And body portion, it extends between described neck portion and the described gate portions; Described neck portion comprises the support convex edge with crenated edges, described support convex edge is associated with the Metal Contact surface and the weight that are subjected to described crenated edges some effects, and the ratio that wherein supports the described Metal Contact surface of convex edge thickness curve modulation and described weight at baseline is in through selection in the scope between 0.1 and 1000.

According to the of the present invention the 4th extensive aspect, it is the preformed member of the container of net shape that a kind of suitable blown-moulding is provided.Described preformed member comprises: neck portion; Gate portions; And body portion, it extends between described neck portion and the described gate portions; Described neck portion comprises and supports the convex edge, and described support convex edge is associated with Metal Contact surface and weight, and the ratio of wherein said Metal Contact surface and described weight is 1004mm at least ²/ g.

According to another extensive aspect of the present invention, provide a kind of assembled die inserts that is used to define the neck portion at least of preformed member.Described assembled die inserts comprise have molded surface define the part body, described part comprises first subdivision of the part of the support convex edge that is used in use defining described neck portion, and described support convex edge is associated with Metal Contact surface, weight and thickness; Described first subdivision is associated with scallop geometry substantially, and described cardinal principle scallop geometry is defined as with the ratio on described Metal Contact surface through selecting so that with described support convex edge and is associated, and described ratio is 1004mm at least ²/ g.

After the following explanation of checking in conjunction with the accompanying drawings concrete non-limiting example of the present invention, the those skilled in the art will understand these and other aspect and the feature of non-limiting example of the present invention now.

Description of drawings

With reference to the detailed description of non-limiting example together with following graphic, can obtain the non-limiting example of the present invention better understanding of (comprising its alternative form and/or version), graphic in:

Fig. 1 describes the cross-sectional view according to the preformed member 100 of known technology enforcement.

Fig. 2 describes the perspective view according to the part of the preformed member 200 of another known technology enforcement.

Fig. 3 A describes to can be used for to define the perspective view of a pair of assembled die inserts 302 of a part of preformed member 100 of Fig. 1 and Fig. 3 B and describes described to the sectional view of assembled die inserts 302 along the planar interception on the plane of crossing described split line to assembled die inserts 302.

Fig. 4 A describes the assembled die inserts implemented according to non-limiting example of the present invention 402 sectional view and the described part of passing line S-S intercepting to assembled die inserts 402 of Fig. 4 B depiction 4A is cut flat cross section.

The cross section that the vertical view of Fig. 5 A describes to use at least in part in one embodiment of the present of invention Fig. 4 A the described preformed member 500 that assembled die inserts 402 is produced and preformed member 500 A-A along the line of Fig. 5 B depiction 5A intercept.

Fig. 6 A describes to be used for to implement to support convex edge 612a, the various embodiment of n to Fig. 6 N.

Described graphic may not the drafting in proportion, and can imaginary line, diagrammatic representation and partial view illustrate.In some instances, may omit understanding described embodiment nonessential or cause the elusive details of other details.

The specific embodiment

With reference to Fig. 4 A and Fig. 4 B, it describes a pair of assembled die inserts 402 according to non-limiting example enforcement of the present invention.More particularly, Fig. 4 A describe described to assembled die inserts 402 sectional view and the described part that assembled die inserts 402 is passed line S-S intercepting of Fig. 4 B depiction 4A cut flat cross section.

Described assembled die inserts 402 is comprised the first assembled die inserts 404 and the second assembled die inserts 406.Hereinafter the explanation that will provide will mainly be used the described first assembled die inserts 404 as an example, but identical teaching is applicable to the described second assembled die inserts 406 on an equal basis.

A described part (being depicted among Fig. 5 A and Fig. 5 B) that defines preformed member 500 that assembled die inserts 402 is configured for use in.More particularly, Fig. 5 A describes the cross section of the preformed member 500 A-A interceptings along the line of the vertical view of preformed member 500 and Fig. 5 B depiction 5A.Preformed member 500 is made up of neck portion 502, gate portions 506 and the body portion 504 that extends between described neck portion 502 and the described gate portions 506.

Described neck portion 502 comprises screw thread 508, and screw thread 508 can be implemented with the roughly the same mode of screw thread as described above 108.Described neck portion 502 further comprises anti-theft ring 510, and anti-theft ring 510 can be implemented with the roughly the same mode of anti-theft ring as described above 110.It should be noted that and in alternative non-limiting example of the present invention, can implement screw thread 508 and anti-theft ring 510 by different way.For instance, screw thread 108 exists several Known designs and embodiment.In described Known designs and the embodiment some include but not limited to ALCOA 1716, ALCOA 1788, BPF-C, PCO-1810, PCO-1815, PCF-43P-1, ALCOA 1690, PCO 1816 etc.

Described neck portion 502 further comprises the support convex edge 512 of implementing according to non-limiting example of the present invention.

Turn back to the explanation of Fig. 4 A and Fig. 4 B, the first assembled die inserts, 404 occlusion bodies 408.Body 408 comprises attachment part 410, and it is used to be attached to the slide block (not describing) of mould (not describing).Body 408 further defines cooling duct 412, via described cooling duct 412 cooling media (for example water etc.) that circulates during use, will easily understand as the those skilled in the art.It should be noted that in alternative non-limiting example of the present invention described cooling duct 412 can some kinds of known alternative of those skilled in the art be implemented.

The molded surface that described body 408 further comprises at least a portion of the neck portion 502 (Fig. 5 A and Fig. 5 B) that is used to define preformed member 500 defines part 414, and defines the part (so situation in the diagram) of body portion 504 in some cases.Described molded surface defines part 414 and comprises:

(i) be used to define first subdivision 420 of a part that supports convex edge 512;

(ii) be used to define second subdivision 418 of the part of anti-theft ring 510; And

(iii) be used to define the 3rd subdivision 416 of the part of screw thread 508.

Continuation is with reference to Fig. 4 A and Fig. 4 B, and according to the embodiment of the invention of wherein being described, described first subdivision 420 is associated with cardinal principle scallop geometry 422.Described cardinal principle scallop geometry 422 comprises a plurality of peaks 424 and a plurality of paddy 426.Among the embodiment that in Fig. 4 B, is described, each in described a plurality of peaks 424 in described a plurality of paddy 426 between the two and vice versa.

Before describing definite configuration how to select cardinal principle scallop geometry 422,, wherein describe to support convex edge 512 and be associated with crenated edges 514 once more fast with reference to Fig. 5 A.Nature, the crenated edges 514 that supports convex edge 512 define the mirror image of cardinal principle scallop geometry 422 of first subdivision 420 of part 414 for molded surface.Therefore, crenated edges 514 comprises a plurality of protuberances 516 and a plurality of depressed part 518, and it is again corresponding to described a plurality of peaks 424 and described a plurality of paddy 426.

Described support convex edge 512 also is associated with the split line 580 that the place that runs into the second assembled die inserts 406 at the first assembled die inserts 404 is defined.We can say that described split line 580 is divided into two virtual half parts (not numbering separately) with described support convex edge 512 (and described substantially neck portion 502), it is a roughly mirror image each other.In other words, described support convex edge 512 is divided into first virtual half part (numbering) separately and second virtual half part (numbering) separately by described split line 580.Among the embodiment that is described in Fig. 5 A and Fig. 5 B, each in described first virtual half part (numbering separately) and described second virtual half part (numbering separately) is related with the profile phase of the roughly the same pattern that comprises described a plurality of protuberance 516 and described a plurality of depressed part 518.

Further it should be noted that and we can say that described support convex edge 512 is associated with Metal Contact surface 520.In general, described Metal Contact surface 520 is surfaces of defining part 414 and more particularly mainly contact with first subdivision 420 with molded surface during use of described support convex edge 512.Part that it should be noted that described Metal Contact surface 520 is subjected to described crenated edges 514 influences.Described support convex edge 512 also is associated with weight, and described weight is the weight that is used to define the moulding material of described support convex edge 512.Described support convex edge 512 also is associated with thickness, and described thickness is the distance between its top and bottom.

In an embodiment of the present invention, we can say that described support convex edge 512 is associated with weight rate (CSTWR) with contact surface.In an embodiment of the present invention, described contact surface and weight rate (CSTWR) can use following formula to calculate:

CSTWR = \frac{MCS}{W}

Wherein,

CSTWR is contact surface and weight rate;

MCS is the Metal Contact surface 520 of supporting convex edge 512;

W is the weight of described support convex edge 512.

In the given example (it uses the support convex edge 512 of the thickness of Standard PC O bore and 1.45mm) of embodiment, described contact surface and weight rate (CSTWR) scope is at 1004mm ²/ g and 1062.1mm ²Between/the g.In this embodiment of the present invention, described contact surface and weight rate (CSTWR) change according to the particular design (number of employed described a plurality of protuberances 516 and described a plurality of depressed part 518 for instance) of the thickness of described support convex edge 512 and described crenated edges 514.Method as a comparison, the contact surface of the preformed member 100 of Fig. 1 is approximately 969.8mm with weight rate (CSTWR) (using identical bore and thickness parameter) ²/ g.As further comparative approach, the contact surface of the preformed member 200 of Fig. 2 is approximately 993.1mm with weight rate (CSTWR) (using identical bore and thickness parameter) ²/ g.

Therefore, we can say that in some non-limiting example of the present invention, described contact surface and weight rate (CSTWR) are selected from 1004mm at least ²/ g.

Should note, in alternative non-limiting example of the present invention, can in different range, select described contact surface and weight rate (CSTWR), this will depend on different parameters, the for example particular design of (for instance) crenated edges 514 (number of employed a plurality of protuberance 516 and a plurality of depressed part 518 for instance), the thickness that supports the convex edge, overall bore (neck finish) design etc.In general, along with the thickness increase of described support convex edge 512 (or support convex edge 112 or support convex edge 212), described contact surface and weight rate (CSTWR) reduce.Yet, find that the contact surface of preformed member 500 and weight rate (CSTWR) are higher than the same ratio (design of supposing thickness and bore keeps identical) of preformed member 100 or preformed member 200 substantially.

Can in an embodiment of the present invention, support convex edge 512 and the contact surface and the weight rate that support convex edge thickness curve (CSTWRM) modulation at baseline furtherly, it can use following formula to calculate:

CSTWRM = \frac{MCS}{W} - F (T)

Wherein,

CSTWRM is contact surface and the weight rate that supports convex edge thickness curve modulation at baseline;

MCS is the Metal Contact surface 520 of supporting convex edge 512;

W is the weight that supports convex edge 512; And

The contact surface on the selected thickness range that F (T) is with selected baseline support convex edge is associated and the function of weight rate.

The contact surface on the described selected thickness range of described baseline support convex edge and the described function (F (T)) of weight rate can use following formula to calculate:

F(T)＝A _CONSTANT×T ²-B _CONSTANT×T+C _CONSTANT

In an embodiment of the present invention, A _CONSTANT, B _CONSTANTAnd C _CONSTANTValue use the described selected baseline of expression to support the function generation of contact surface and the curve of weight rate on the selected thickness range of convex edge.In specific limiting examples of the present invention, function F (T) is used constant A _CONSTANT, B _CONSTANTAnd C _CONSTANTFollowing value calculate:

F(T)＝37.439xT ²-411.08xT+1510.5

In this instantiation, used the value that is associated with the preformed member 200 that is used as Fig. 2 of baseline to produce A _CONSTANT, B _CONSTANTAnd C _CONSTANTValue.In alternative non-limiting example of the present invention, can use constant A _CONSTANT, B _CONSTANTAnd C _CONSTANTOther value.For instance, if select the support convex edge 112 of preformed member 100, can use following value so:

A _CONSTANT＝482.92

B _CONSTANT＝1653.7

C _CONSTANT＝2352.4

In various embodiment of the present invention, support the contact surface of convex edge thickness curve (CSTWRM) modulation and weight rate scope between 0.1 and 1000 at baseline.

In the specific limiting examples of the embodiment that supports convex edge 512, the Metal Contact surface 520 (MCS) of supporting convex edge 512 is 718.2mm ²And the weight (W) that supports convex edge 512 is that 0.702 gram and the thickness that supports convex edge 512 are 1.45mm.It should be noted that Metal Contact surface 520 and described weight are subjected to supporting first and second virtual half part (not numbering separately) influence of convex edge 512 with part about equally.In this non-limiting example of the present invention, contact surface and weight rate (CSTWR) are 1034.6mm ²/ g.In addition, contact surface and the weight rate at baseline support convex edge thickness curve (CSTWRM) (preformed member 200 that uses Fig. 2 is as baseline) modulation is 41.49.It should be noted that in this embodiment of the present invention, support the crenated edges 514 that convex edge 512 comprises eight examples of eight examples with protuberance 516 and depressed part 518.

In another specific limiting examples of the embodiment that supports convex edge 512, the Metal Contact surface 520 (MCS) of supporting convex edge 512 is 718.2mm ²And the weight (W) that supports convex edge 512 is that 0.702 gram and the thickness that supports convex edge 512 are 1.45mm.It should be noted that Metal Contact surface 520 and described weight are subjected to supporting first and second virtual half part (not numbering separately) influence of convex edge 512 with part about equally.In this non-limiting example of the present invention, contact surface and weight rate (CSTWR) are 1023.6mm ²/ g.In addition, contact surface and the weight rate at baseline support convex edge thickness curve (CSTWRM) (preformed member 200 that uses Fig. 2 is as baseline) modulation is 30.54.It should be noted that in this embodiment of the present invention, support the crenated edges 514 that convex edge 512 comprises six examples of six examples with protuberance 516 and depressed part 518.

Yet, it should be noted that illustrating of Fig. 4 A, Fig. 4 B, Fig. 5 A and Fig. 5 B only is illustrating specific embodiment.Other configuration that the molded surface that supports convex edge 512 and be associated with it defines first subdivision 420 of part 414 also is feasible.In general, do not limit the definite geometry of definite number, described a plurality of protuberances 516 and a plurality of depressed part 518 (and so described a plurality of peaks 424 and described a plurality of paddy 426) of a plurality of protuberances 516 and a plurality of depressed part 518 (and so a plurality of peaks 424 and a plurality of paddy 426), for example curvature and/or angle and/or shape and/or radius.More particularly, to Fig. 6 N, it describes to support the some kind alternate design of convex edge 612a to 612n with reference to Fig. 6 A.

Even more particularly, Fig. 6 A describes the support convex edge 612a that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612a has three examples of protuberance 616a and three examples of depressed part 618a through enforcement.It should be noted that supporting being configured in of convex edge 612a has revised in the zone that is depicted in the 680a place substantially to prevent to form negative angle.For avoiding query, term " negative angle " means and will form undercutting and will make the angle that design can not the demoulding.This is through revising the example of embodiment, wherein split line 650a pass in described three examples of described protuberance 616a other two among one and the depressed part 618a in described three examples of protuberance 616a in revising the regional 680a between the example through revising one.

Fig. 6 B describes the support convex edge 612b that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612b has four examples of protuberance 616b and four examples of depressed part 618b through enforcement.Embodiment that it should be noted that Fig. 6 B is the example of standard implementation scheme, wherein split line 650b pass first and in the diametrically opposite example in described four examples of described protuberance 616b the two.

Fig. 6 C describes the support convex edge 612c that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612c has five examples of protuberance 616c and five examples of depressed part 618c through enforcement.It should be noted that supporting being configured in of convex edge 612c has revised in the zone that is depicted in the 680c place substantially to prevent to form negative angle.This is through revising another example of embodiment, wherein split line 650c pass in described five examples of described protuberance 616c two in described five examples of one and depressed part 618c in described five examples of protuberance 616c in revising the regional 680c between the example through revising one.

Fig. 6 D describes the support convex edge 612d that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612d has six examples of protuberance 616d and six examples of depressed part 618d through enforcement.It should be noted that the embodiment of Fig. 6 C another example for the standard implementation scheme of support convex edge 612d.

Fig. 6 E describes the support convex edge 612e that alternative non-limiting example according to the present invention is implemented.Except that the shape of a plurality of protuberance 616e and be depicted in the angle of depressed part 618d at 670e place, support convex edge 612e and roughly be similar to and support convex edge 612d.

Fig. 6 F describes the support convex edge 612f that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612f has seven examples of protuberance 616f and seven examples of depressed part 618f through enforcement.It should be noted that supporting being configured in of convex edge 612f has revised in the zone that is depicted in the 680f place substantially to prevent to form negative angle.This is through revising the example of embodiment, wherein split line 650f pass in described seven examples of protuberance 616f two in described seven examples of one and depressed part 618f in described seven examples of protuberance 616f in revising the regional 680f between the example through revising one.

Fig. 6 G describes the support convex edge 612g that alternative non-limiting example according to the present invention is implemented.Except that the shape of a plurality of protuberance 616g and be depicted in the angle of depressed part 618g at 670g place, support convex edge 612g and roughly be similar to and support convex edge 612f.

Fig. 6 H describes the support convex edge 612h that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612h has eight each and every one examples of protuberance 616h and eight examples of depressed part 618h through enforcement.It should be noted that the embodiment of Fig. 6 H another example for the standard implementation scheme of support convex edge 612h.

Fig. 6 I describes the support convex edge 612i that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612i has nine examples of protuberance 616i and nine examples of depressed part 618i through enforcement.It should be noted that supporting being configured in of convex edge 612i has revised in the zone that is depicted in the 680i place substantially to prevent to form negative angle.This is through revising the example of embodiment, wherein split line 650i pass in described nine examples of protuberance 616i two in described nine examples of one and depressed part 618i in described nine examples of protuberance 616i in revising the regional 680i between the example through revising one.

Fig. 6 J describes the support convex edge 612j that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612j has ten examples of protuberance 616j and ten examples of depressed part 618j through enforcement.It should be noted that the embodiment of Fig. 6 J another example for the standard implementation scheme of support convex edge 612j.

Fig. 6 K describes the support convex edge 612k that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612k has 11 examples of protuberance 616k and 11 examples of depressed part 618k through enforcement.It should be noted that supporting being configured in of convex edge 612k has revised in the zone that is depicted in the 680k place substantially to prevent to form negative angle.This is through revising the example of embodiment, wherein split line 650k pass in described 11 examples of protuberance 616k two in described 11 examples of one and depressed part 618k in described 11 examples of protuberance 616k in revising the regional 680k between the example through revising one.

Fig. 6 L describes the support convex edge 612l that alternative non-limiting example according to the present invention is implemented.Support convex edge 612l and have 12 examples of protuberance 616l and 12 examples of depressed part 618l through enforcement.It should be noted that the embodiment of Fig. 6 L another example for the standard implementation scheme of support convex edge 612l.Embodiment that also it should be noted that Fig. 6 L can be regarded as the changing example of embodiment, wherein some examples in described 12 examples of protuberance 616l have the different shape of other example in 12 examples with described protuberance 616l.For instance, protuberance 660a is different with protuberance 660b shape.

Fig. 6 M describes the support convex edge 612m that alternative non-limiting example according to the present invention is implemented.Described support convex edge 612m has 13 examples of protuberance 616m and 13 examples of depressed part 618m through enforcement.It should be noted that supporting being configured in of convex edge 612m has revised in the zone that is depicted in the 680m place substantially to prevent to form negative angle.This is through revising the example of embodiment, wherein split line 650m pass in described 13 examples of protuberance 616m two among one and the depressed part 618m in described 13 examples of protuberance 616m in revising the regional 680m between the example through revising one.Embodiment that also it should be noted that Fig. 6 M can be regarded as the changing example of embodiment, wherein some examples in described 13 examples of protuberance 616m have the different shape of other example in described 13 examples with protuberance 616m.

Fig. 6 N describes the support convex edge 612n that alternative non-limiting example according to the present invention is implemented.Except that the shape of protuberance 616n, support convex edge 612n and roughly be similar to support convex edge 612m, this is the example of its round embodiment.

When design cardinal principle scallop geometry 422, can consider in addition with the bottom knockout Consideration.

In general, select the even number protuberance therein (for instance, protuberance 616b) among those embodiment, will be wherein split line (not describing) pass first in the diametrically opposite example of a plurality of protuberances (for example four of protuberance 616b examples) and the two the embodiment is considered as standard substantially.In these embodiment of the present invention, further select described cardinal principle scallop geometry 422 so that roughly pass the two center of first and in the diametrically opposite protuberance in described a plurality of protuberance 516 and define split line 580.

Perhaps, in some embodiments of the invention, given one the geometry of crossing by split line 580 in described a plurality of protuberances 516 can through revise with prevent to form originally will be harmful to the demoulding negative angle.In general, select the odd number protuberance therein (for instance, five examples of protuberance 616c) among those embodiment of the present invention, need in the described protuberance some (for instance, in described five examples of protuberance 616c some) and/or some (some in described five examples of depressed part 618c for instance) in the depressed part make amendment.In these embodiment of the present invention, described embodiment is regarded as substantially " through revising ", wherein split line (not describing) is passed a plurality of protuberances (for instance, described five examples of protuberance 616c) one in and (for example through modifier area, zone 680c) in through revising depressed part (for example, in described five examples of depressed part 618c described) through revising one.

In addition, in some embodiments of the invention, described embodiment can be regarded as no change substantially, for example (for instance) support the situation of convex edge 612b, wherein all described a plurality of protuberances (for example, for instance, four examples of all of protuberance 616b) are implemented in roughly the same mode.In other words, in these embodiment of the present invention, in a plurality of protuberances given one (for example, for instance, in four examples of protuberance 616b one) with described a plurality of protuberances in another person (for example, for instance, another person in described four examples of protuberance 616b) roughly the same mode is implemented.

In other embodiments of the invention, described embodiment can be regarded as changing substantially, for example (for instance) support the situation of convex edge 612l, other example in described 12 examples of some in 12 examples of wherein said protuberance 616l and described protuberance 616l is differently implemented.In other words, in these embodiment of the present invention, in described a plurality of protuberance given one (for example, for instance, in described 12 examples of protuberance 616l given one) (for example in first mode, for instance, first shape and/or first angle etc.) implement and described a plurality of protuberance in another person (for example, for instance, another person in described 12 examples of protuberance 616l) (for example in second mode, for instance, second shape and/or second angle etc.) implement.

In addition, when selecting particular design, can take into account the machining constraint in addition and use concrete equipment (blown-moulding equipment etc.) for instance, and the constraint that applies at cardinal principle scallop geometry 422.

The technical effect of embodiments of the invention comprises providing to compare with prior art design and uses the still less support convex edge 512 of material.In given embodiment, material save can be originally the material that will be used about 30% and up to 50%.In given embodiment, the added technique effect of saving owing to the material that supports in the convex edge 512 can be to save for total material of about 3% of total preformed member 500 weight.Another technical effect of embodiments of the invention comprises provides to small part because with the contacting of increase of metal the more effectively support convex edge 512 of cooling.For instance, if the preformed member 200 of Fig. 2 is compared with the preformed member 100 of Fig. 1, the Metal Contact zone of preformed member 200 is a bit larger tham the Metal Contact zone of preformed member 100.On the other hand, the increase in the Metal Contact zone of preformed member 500 (reaching other alternate embodiment of institute's teaching herein) is more remarkable by comparison.

It should be noted that and in each and each embodiment of the present invention, do not need to enjoy all sidedly each and each technical effect.

Though above stated specification has used injection-molded conduct to be used to produce the example of preformed member, the teaching of embodiments of the invention is not so limited.For instance, in alternate example, the extrusion blow molding technique can be benefited from teaching of the present invention.

Explanation to non-limiting example of the present invention provides example of the present invention, and these examples do not limit the scope of the invention.Should clearly understand, scope of the present invention only is subjected to the restriction of claims.Notion as described above is applicable to actual conditions and/or function, and can further extend to various other application in the scope of the invention.So describe after the non-limiting example of the present invention, should understand, under the situation that does not deviate from described notion, can make and revising and enhancing.Therefore, the content of protecting in the patent mode is only limited by the scope of above claims.

Claims

1. preformed member (500) that suitable blown-moulding is the container of net shape, described preformed member (500) comprises:

Neck portion (502);

Gate portions (506) reaches

Body portion (504), it extends between described neck portion (502) and the described gate portions (506);

Described neck portion (502) comprises support convex edge (512), described support convex edge (512) is associated with Metal Contact surface (520) and weight, and the ratio that wherein supports the described Metal Contact surface (520) of convex edge thickness curve modulation and described weight at baseline is in through selection in the scope between 0.1 and 1000.

2. preformed member according to claim 1 (500), wherein said support convex edge (512) comprises crenated edges (514).

3. preformed member according to claim 2 (500), wherein said crenated edges (514) comprise a plurality of protuberances (516) and a plurality of depressed part (518).

4. preformed member according to claim 3 (500), the number of wherein said a plurality of protuberances (516) is an even number.

5. preformed member according to claim 4 (500), wherein said support convex edge (512) is divided into first virtual half part and second virtual half part by split line (580), and in wherein said first virtual half part and described second virtual half part each is related with the profile phase of the roughly the same pattern that comprises described a plurality of protuberance (516) and described a plurality of depressed part (518).

6. preformed member according to claim 3 (500), the number of wherein said a plurality of protuberances (516) is an odd number.

7. preformed member according to claim 6 (500), wherein said support convex edge (512) is through revising.

8. preformed member according to claim 7 (500), wherein said support convex edge (512) are so that split line (580) is passed given one in described a plurality of protuberance (516) and passed in described a plurality of depressed part (518) in described a plurality of protuberances (516) two revising through revising given one mode in revising the zones (680a) between the protuberance.

9. preformed member according to claim 3 (500), given one in wherein said a plurality of protuberances (616b) with described a plurality of protuberances (616b) in the roughly the same mode of another person implement.

10. preformed member according to claim 3 (500), given one in wherein said a plurality of protuberances (6161) implement in first mode and described a plurality of protuberance (6161) in another person implement in second mode.

11. an assembled die inserts (404,406) that is used to define the neck portion at least (502) of preformed member (500), described assembled die inserts (404,406) comprises:

Body (408), its molded surface with first subdivision (420) of a part that comprises the support convex edge (512) that is used in use defining described neck portion (502) defines part (308), and described support convex edge (512) is associated with Metal Contact surface (520), weight and thickness;

Described first subdivision (420) is associated with cardinal principle scallop geometry (422), described cardinal principle scallop geometry (422) is defined as with support the described Metal Contact surface (520) that the convex edge thickness curve modulates at baseline through selecting so that with described support convex edge (512) and is associated with the ratio of described weight, and described ratio is in through selection in the scope between 0.1 and 1000.

12. assembled die inserts according to claim 11 (404,406), wherein said cardinal principle scallop geometry (422) is through further selecting to take into account demoulding Consideration.

13. the preformed member (500) that suitable blown-moulding is the container of net shape, described preformed member (500) comprises:

Neck portion (502);

Gate portions (506) reaches

Described neck portion (502) comprises the have crenated edges support convex edge (512) of (514), described support convex edge (512) is associated with the Metal Contact surface (520) and the weight that are subjected to described crenated edges (514) some effects, and the ratio that wherein supports the described Metal Contact surface (520) of convex edge thickness curve modulation and described weight at baseline is in through selection in the scope between 0.1 and 1000.

14. preformed member according to claim 13 (500), wherein said crenated edges (514) comprise a plurality of protuberances (516) and a plurality of depressed part (518).

15. preformed member according to claim 14 (500), the number of wherein said a plurality of protuberances (516) is an even number.

16. preformed member according to claim 15 (500), wherein said support convex edge (512) is divided into first virtual half part and second virtual half part by split line (580), and in wherein said first virtual half part and described second virtual half part each is related with the profile phase of the roughly the same pattern that comprises described a plurality of protuberance (516) and described a plurality of depressed part (518).

17. preformed member according to claim 14 (500), the number of wherein said a plurality of protuberances (516) is an odd number.

18. preformed member according to claim 17 (500), wherein said support convex edge (512) is through revising.

19. preformed member according to claim 18 (500), wherein said support convex edge (512) are so that split line (580) is passed given one in described a plurality of protuberance (516) and passed in described a plurality of depressed part (518) in described a plurality of protuberances (516) two revising through revising given one mode in revising the zones (680a) between the protuberance.

20. preformed member according to claim 14 (500), given one in wherein said a plurality of protuberances (616b) with described a plurality of protuberances (616b) in the roughly the same mode of another person implement.

21. preformed member according to claim 14 (500), given one in wherein said a plurality of protuberances (6161) are implemented in first mode and described a plurality of protuberance (6161) in another person implement in second mode.

22. the preformed member (500) that suitable blown-moulding is the container of net shape, described preformed member (500) comprises:

Neck portion (502);

Gate portions (506) reaches

Described neck portion (502) comprises and supports convex edge (512), and described support convex edge (512) is associated with Metal Contact surface (520) and weight, and the ratio of wherein said Metal Contact surface (520) and described weight is 1004mm at least ²/ g.

23. preformed member according to claim 22 (500), the described ratio of wherein said Metal Contact surface (520) and described weight is at 1004mm ²/ g and 1062.1mm ²In the scope between the/g.

24. an assembled die inserts (404,406) that is used to define the neck portion at least (502) of preformed member (500), described assembled die inserts (404,406) comprises:

Described first subdivision (420) is associated with cardinal principle scallop geometry (422), described cardinal principle scallop geometry (422) is defined as with the ratio on described Metal Contact surface (520) through selecting so that with described support convex edge (512) and is associated, and described ratio is 1004mm at least ²/ g.

25. assembled die inserts according to claim 24 (404,406), the described ratio of wherein said Metal Contact surface (520) and described weight is at 1004mm ²/ g and 1062.1mm ²In the scope between the/g.