CN106217732A - A kind of die design method of heightening type bottle cap - Google Patents
A kind of die design method of heightening type bottle cap Download PDFInfo
- Publication number
- CN106217732A CN106217732A CN201610610693.5A CN201610610693A CN106217732A CN 106217732 A CN106217732 A CN 106217732A CN 201610610693 A CN201610610693 A CN 201610610693A CN 106217732 A CN106217732 A CN 106217732A
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- China
- Prior art keywords
- bottle cap
- contraction
- type bottle
- die cavity
- covering
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
- B29C43/42—Moulds for making articles of definite length, i.e. discrete articles for undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Closures For Containers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
nullThe present invention relates to bottle cap production technical field，Die design method particularly to a kind of heightening type bottle cap，The method contraction constant when the die cavity designing mould is to estimate around the filling part cooling of the top setting of T-shaped lid，And the inwall distance to die cavity central shaft of this covering die cavity is expanded according to this contraction constant，Owing to just having taken into full account contraction the most that may be present in die design stage，Therefore，This product is when uncolled，Its covering inwall is greater than required dimensional standard to the distance of bottle cap central shaft，And after bottle cap cools down，Owing to the contraction of fill area then can reduce covering inwall to the distance of bottle cap central shaft，The covering inwall of product is made just to meet required dimensional standard to the distance of bottle cap central shaft，Thus avoid the problem that the product yield shunk and bring declines due to fill area，The yield of product is greatly improved.
Description
Technical field
The present invention relates to bottle cap production technical field, particularly to the die design method of a kind of heightening type bottle cap.
Background technology
Along with the raising of market technological level, increasing beverage uses monolithic bottle cap to seal bottleneck, for adaptation
The common-use size of bottleneck, according to size distinction, the universal models of existing bottle cap has 2925 and 2621.
Common, bottle cap is made up of the annulus of tubular and the cover plate being arranged at annulus top.For better seal
Bottleneck, the bottom surface of cover plate needs to be provided with interior envelope and covering.As its name suggests, when sealing bottleneck, interior envelope is for pushing against the interior of bottleneck
Wall, covering pushes against the outer wall of bottleneck, say, that the outer wall of interior envelope and the inwall of covering cooperatively form the card for clamping bottleneck
Groove.Can seal up bottleneck just in order to ensure covering and interior envelope, usual cover plate bottom surface is ring-type to the distance of annulus bottom surface
Portion needs to keep consistent with the height of bottleneck.It is to say, the annulus of bottle cap is height-limited in the height of adaptive bottleneck.
On the other hand, mainly rely on finger to carry out twist-off closure with the frictional force of the striped of annulus when user uncaps,
Therefore, when bottle cap height is relatively low, then user can be caused to be difficult to twist-off closure.To this end, inventors herein propose a kind of referred to as T-shaped lid
Novel bottle cap structure, this novel bottle cap mechanism have sealing plate and extend ring, sealing plate from the top of annulus edge to
The central shaft of bottle cap extends, and extends ring and extends above to bottle cap away from the edge of annulus side from sealing plate, and cover plate is arranged at
Extend the top of ring, interior envelope and covering arrange with sealing plate bottom surface, sealing plate top and to extend outside ring be fill area,
This fill area is filled and is formed filling part, and the outer wall of filling part forms the striped corresponding with the striped of annulus outer wall.During sealing, should
The sealing plate of bottle cap the top of bottom and bottleneck push against, therefore, the length of extension is not limited by bottleneck, even if therefore needing
The aspect ratio wanting adaptive bottleneck is relatively low, and this bottle cap increases the whole of bottle cap by the way of also being able to the height by increasing extension
Height, thus increase strip length, finger and the contact area of bottle cap when increasing screwing bottle cap.
But, the most but there are some problems in above-mentioned bottle cap, exists bigger owing to bottle cap is overall in structure
Change, inventor according to product size design mould and die sinking produce after find, this structure when fill its yield relative to
Having declined, subject matter is the combination of covering and bottleneck inwall too closely in the past.
Summary of the invention
It is an object of the invention to avoid above-mentioned weak point of the prior art to provide one that bottle can be greatly improved
The die design method of lid yield.
Invention thinking: inventor the analysis found that, the reason causing product yield to decline in new construction is filling part
Cause.In the production process of product, need plastic heating to molten condition, the most again die stamp.Conventional bottle cap
Various piece is substantially thin wall shape, and therefore, it is after die stamp, cold in utilizing the cooling structure of mould can realize mould
But, the cool time of various piece is the most consistent, and therefore, the various piece stress when cooling is the most basically identical, therefore
The deformation quantity of bottle cap is less.But, in process of production, the amount of plastic of its filling part is the most significantly more than Novel bottle cap structure
Other parts, which results in cooling stage in the mould after die stamp, and the heat within filling part is difficult to outer dissipating,
Particularly filling part and sealing plate junction.Owing to filling part cannot quickly cool down, after product stripping, filling part is actually
Also may proceed to cooling, in cooling procedure, filling part can shrink, and this contraction can drive sealing plate to shrink the most in the lump, thus leads
Cause covering and produce displacement, in final products covering inwall to the distance of bottle cap central shaft less than sealing groove inwall in mould to die cavity
The distance of central shaft.And interior envelope due to be arranged on sealing plate inner end, basic be connected with prolongation ring, prolongation will not be by sealing plate
The impact of contraction.Therefore, the yield of product to be improved, on the one hand need to continue to improve the structure of product, reduce filling part cold
On the other hand but the contraction caused time, then needs just to take into full account the shrinkage factor of this product when designing mould, thus more
Reasonably determine each size of mould.The present invention i.e. provides die design method therein.
The purpose of the present invention is achieved through the following technical solutions:
Provide the die design method of a kind of heightening type bottle cap, remain for being formed the die cavity of this heightening type bottle cap, this die cavity in advance
Including the covering die cavity for forming covering, it is characterised in that: estimate filling out of the top setting around this heightening type bottle cap
Fill contraction constant during portion's cooling, and according to this contraction constant expand the inwall of this covering die cavity to die cavity central shaft away from
From.
Wherein, the first contraction constant of filling part when cooling down in estimating this heightening type bottle cap mould, and estimate this heightening type bottle
Outside cover mold, the second contraction constant of filling part during cooling, shrinks constant according to first and the second contraction constant estimates overall receipts
Contracting constant.
Wherein, the method is applied to 2925 type bottle caps, and described filling part height is 1.7mm to 1.8mm, and mean breadth is
3.4mm to 3.8mm, described contraction constant is 1.18%-1.25%.
Wherein, the inwall of this covering die cavity is 13.5-14.5mm to the distance of mold center's axle.
Wherein, the method is applied to 2621 type bottle caps, and described filling part height is 1.45mm to 1.55mm, and mean breadth is
2.7mm to 2.9mm, described contraction constant is 1.18%-1.25%.
Wherein, the inwall of this covering die cavity is 11.80-12.80mm to the distance of mold center's axle.
Beneficial effects of the present invention: the invention provides a kind of die design method, the method is at the die cavity of design mould
It is to estimate the contraction constant when the filling part cooling of the top setting of T-shaped lid, and expands according to this contraction constant
The inwall of this covering die cavity, to the distance of die cavity central shaft, after the cooling period may owing to just having taken into full account in die design stage
The contraction existed, therefore, this product is when uncolled, and the distance of its covering inwall to bottle cap central shaft is greater than required size
Standard, and after bottle cap cools down, owing to the contraction of fill area then can reduce covering inwall to the distance of bottle cap central shaft so that produce
The covering inwall of product meets required dimensional standard just to the distance of bottle cap central shaft, thus avoids owing to fill area is shunk
And the problem that the product yield brought declines, the yield of product is greatly improved.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not constitute any limit to the present invention
System, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain according to the following drawings
Other accompanying drawing.
Fig. 1 is the structural representation of the bottle cap corresponding to the mould of embodiment 1.
Fig. 2 is the structural representation of the mould of embodiment 1.
Detailed description of the invention
The invention will be further described with the following Examples.
Embodiment 1
One of detailed description of the invention of a kind of die design method of the present invention, the mould that the method is to be designed is to add for production
2925 type bottle caps of high type, this Bottle cap structure, as it is shown in figure 1, include annulus 1, cover plate 2, sealing plate 3 and extend ring 4, seals
Plate 3 extends from the edge at the top of annulus 1 to the central shaft of bottle cap, extends ring 4 from sealing plate 3 away from annulus 1 side
Edge extends to Bottle cap top, and cover plate 2 is arranged at the top extending ring 4, and the bottom surface of sealing plate 3 is provided with interior envelope 6 and covering 7,
The top of sealing plate 3 and extend outside ring 4 and be formed with filling part 5, filling part 5 include 72 corresponding with the striped 8 of bottle cap outer wall
Reinforcement.The many factors such as comprehensive heat radiation consider, the height of the filling part 5 of this type bottle cap is 1.7mm to 1.8mm, averagely
Width is 3.4mm to 3.8mm, and wherein mean breadth refers to the meansigma methods of reinforcement width at differing heights.
The basic structure of the mould of all designs of the present invention as in figure 2 it is shown, include backform 21 and bed die, backform 21 and bed die
Between be reserved with the gap as die cavity, backform 21 includes the opening groove towards bed die, and bed die includes cylinder 22 and is assemblied in
Cylinder 3 in cylinder 22 inner chamber, the end face of cylinder 3 is higher than the end face of described cylinder 22, so that cylinder 22 end face, cylinder 3 side
Face and groove cooperatively form the filling die cavity 24 for molding filling part 5 jointly.Additionally, cylinder 3 outer wall, cylinder 22 inwall coordinate
Forming the interior envelope die cavity 25 of envelope 6 in molding, the end face of described cylinder 22 offers the covering die cavity for molding covering 7
26。
When designing above-mentioned mould, need the contraction constant in time cooling down, this contraction constant according to the filling part 5 of estimation bottle cap
And the first contraction constant when cooling down in needing to consider mould, it is often more important that the second contraction constant when cooling down outside mould to be considered,
Comprehensive first, second shrinks constant can estimate this bottle cap amount of contraction during cooling.When designing mould, then need root
The inwall distance to die cavity central shaft of this covering die cavity 26 is expanded according to this contraction constant.For the present embodiment, inventor estimates
Calculating contraction constant is 1.18%-1.25%, and therefore, the distance of the inwall of the covering die cavity 26 finally determined to die cavity centrage is
13.5-14.5mm。
Embodiment 2
The two of the detailed description of the invention of a kind of die design method of the present invention, the main technical schemes of the present embodiment and embodiment 1
Identical, the most unaccounted feature, use the explanation in embodiment 1, no longer repeat at this.The present embodiment with
The difference of embodiment 1 is, the mould that the method is to be designed is the 2621 type bottle caps for producing heightening type, filling out of this bottle cap
Filling portion 5 height is 1.45mm to 1.55mm, and mean breadth is 2.7mm to 2.9mm, and for this type bottle cap, inventor estimates receipts
Contracting constant is 1.18%-1.25%, and therefore, the distance of the inwall of the covering die cavity 26 finally determined to die cavity centrage is 11.80-
12.80mm。
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than the present invention is protected
Protecting the restriction of scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (6)
1. a die design method for heightening type bottle cap, remains for being formed the die cavity of this heightening type bottle cap in advance, and this die cavity includes
For forming the covering die cavity of covering, it is characterised in that: estimate the filling part of the top setting around this heightening type bottle cap
Contraction constant during cooling, and the inwall distance to die cavity central shaft of this covering die cavity is expanded according to this contraction constant.
The die design method of a kind of heightening type bottle cap the most as claimed in claim 1, it is characterised in that: estimate this heightening type bottle
First contraction constant of filling part during cooling in cover mold, and the second contraction of filling part when estimating cooling outside this heightening type bottle cap mould
Constant, shrinks constant according to first and the second contraction constant estimates overall contraction constant.
The die design method of a kind of heightening type bottle cap the most as claimed in claim 1, it is characterised in that: the method is applied to
2925 type bottle caps, described filling part height is 1.7mm to 1.8mm, and mean breadth is 3.4mm to 3.8mm, and described contraction constant is
1.18%-1.25%。
The die design method of a kind of heightening type bottle cap the most as claimed in claim 3, it is characterised in that: this covering die cavity interior
Wall is 13.5-14.5mm to the distance of mold center's axle.
The die design method of a kind of heightening type bottle cap the most as claimed in claim 1, it is characterised in that: the method is applied to
2621 type bottle caps, described filling part height is 1.45mm to 1.55mm, and mean breadth is 2.7mm to 2.9mm, described contraction constant
For 1.18%-1.25%.
The die design method of a kind of heightening type bottle cap the most as claimed in claim 5, it is characterised in that: this covering die cavity interior
Wall is 11.80-12.80mm to the distance of mold center's axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610610693.5A CN106217732B (en) | 2016-07-29 | 2016-07-29 | A kind of die design method of heightening type bottle cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610610693.5A CN106217732B (en) | 2016-07-29 | 2016-07-29 | A kind of die design method of heightening type bottle cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106217732A true CN106217732A (en) | 2016-12-14 |
| CN106217732B CN106217732B (en) | 2019-07-19 |
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ID=57534781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610610693.5A Active CN106217732B (en) | 2016-07-29 | 2016-07-29 | A kind of die design method of heightening type bottle cap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108437383A (en) * | 2018-04-09 | 2018-08-24 | 宝鸡文理学院 | A kind of heightening type bottle cap die design method |
Citations (4)
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|---|---|---|---|---|
| CN101044065A (en) * | 2004-09-01 | 2007-09-26 | 克雷诺瓦通用密封有限公司 | Closure |
| CN101306741A (en) * | 2007-05-17 | 2008-11-19 | 上海紫日包装有限公司 | Single-sheet plastic bottle cap |
| CN203512287U (en) * | 2013-07-11 | 2014-04-02 | 无限极（中国）有限公司 | Double-sealing anti-fake bottle cap |
| CN204433325U (en) * | 2014-11-28 | 2015-07-01 | 黄镇荣 | The plastic bottle closure that a kind of high strength antiseep is easily opened |
-
2016
- 2016-07-29 CN CN201610610693.5A patent/CN106217732B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101044065A (en) * | 2004-09-01 | 2007-09-26 | 克雷诺瓦通用密封有限公司 | Closure |
| CN101306741A (en) * | 2007-05-17 | 2008-11-19 | 上海紫日包装有限公司 | Single-sheet plastic bottle cap |
| CN203512287U (en) * | 2013-07-11 | 2014-04-02 | 无限极（中国）有限公司 | Double-sealing anti-fake bottle cap |
| CN204433325U (en) * | 2014-11-28 | 2015-07-01 | 黄镇荣 | The plastic bottle closure that a kind of high strength antiseep is easily opened |
Non-Patent Citations (2)
| Title |
|---|
| 文根保等: "《现代注塑模结构设计实用技术》", 31 May 2014, 机械工业出版社 * |
| 胡静等: "《中文版Pro/ENGINEER Wildfire 4.0机械设计标准教程》", 31 October 2009, 中国铁道出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108437383A (en) * | 2018-04-09 | 2018-08-24 | 宝鸡文理学院 | A kind of heightening type bottle cap die design method |
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| Publication number | Publication date |
|---|---|
| CN106217732B (en) | 2019-07-19 |
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