CN109454855A - A kind of axial direction twocouese positioning stretching hollow blow molding mold - Google Patents
A kind of axial direction twocouese positioning stretching hollow blow molding mold Download PDFInfo
- Publication number
- CN109454855A CN109454855A CN201811648827.8A CN201811648827A CN109454855A CN 109454855 A CN109454855 A CN 109454855A CN 201811648827 A CN201811648827 A CN 201811648827A CN 109454855 A CN109454855 A CN 109454855A
- Authority
- CN
- China
- Prior art keywords
- blow molding
- molding mold
- mold
- hollow blow
- twocouese
- Prior art date
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 13
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000007493 shaping process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 208000029152 Small face Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A kind of axial direction twocouese positioning stretching hollow blow molding mold, front mold and rear mold, the bed die positioned at mold cavity bottoms, the end template for installing bed die including being encircled into die cavity, the bed die is equipped with through-hole, the support bar that stretching motion can be done is installed, the support bar can protrude into the middle part of die cavity under the action of the driving mechanism in the through-hole.The present invention stretches the material of bottle base bottom adequately by the support of support bar, is more equally distributed in bottle bottom, available better cooling and shaping.Due to adequately being stretched, the internal stress of bottom of bottle not only can reduce, reduce the probability of explosion, but also can mitigate the weight of base material, achieve the effect that subtract grammes per square metre.
Description
Technical field
The present invention relates to the molding technical fields of blow-molded container, and in particular to a kind of axial direction twocouese positioning stretching is hollow to blow
Molding die tool.
Background technique
At present in blow-molded container forming process, especially in the blow molding method of note stretch blow two-step method, bottle base
Axial tension, which is substantially, is disposably stretched to die cavity bottom for bottle base by bottom in stretch rod (round steel bar) contact bottle base
Portion.Injecting compressed air by compressed air by bottle base inflation makes it be tightly attached to mold simultaneously in stretch rod drawing process
On cavity wall, hollow plastic product is obtained through cooling and shaping.When bottle base, which is stretched to, to be contacted with mold cavity bottoms metal, bottle base bottom
Cooling than very fast, stretching limited space material is difficult to be sufficiently tensile in addition, container bottom formation buildup leads to waste of material, produces
Raw stress is concentrated, and container bottom is made to be easy cracking, especially even more serious on large-rolume container (5L or more).In addition, working as bottle
When base stretched vertically size is larger, stretch rod is easy to occur that rate is unstable, rigidity is insufficient, bottle base bottom is easy to produce bias,
Cause blow-molded container wall unevenness even, influences container integral strength.
In order to solve the above-mentioned technical problem the present inventor, has devised a kind of realization material and is evenly distributed, also can reduce bottom
The axial twocouese positioning of portion's material weight stretches hollow blow molding method, and the material of bottle base bottom is made by the support at middle part
It is adequately stretched, is more equally distributed in bottle bottom, available better cooling and shaping.Due to adequately being drawn
It stretches, not only can reduce the internal stress of bottom of bottle, reduce the probability of explosion, but also the weight of base material can be mitigated, reach
Subtract the effect of grammes per square metre.However molding die on the market cannot achieve above-mentioned function at present, it is therefore desirable to existing molding
Mold improves.
Summary of the invention
The axial twocouese that the present invention provides a kind of achievable middle part support, is sufficiently tensile bottle base base material is fixed
Position stretches hollow blow molding mold.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of axial direction twocouese positioning stretching hollow blow molding mold, front mold and rear mold, position including being encircled into die cavity
Bed die in mold cavity bottoms, the end template for installing bed die, the bed die are equipped with through-hole, are equipped with and can do in the through-hole
The support bar of stretching motion, the support bar can protrude into the middle part of die cavity under the action of the driving mechanism.
In the present invention, the through-hole is located at the middle part of bed die.
In the present invention, the top of the support bar is platform, and the diameter of the platform is greater than the diameter of through-hole.
In the present invention, the top of the platform is curved, and the middle part of the curved surface is equipped with the pit inwardly concaved.
In the present invention, the driving mechanism is pneumatic cylinder, hydraulic cylinder or motor.
In the present invention, the driving mechanism is connect by a plurality of connecting rod with bed die.
In the present invention, the top of the die cavity is equipped with upper clamping opening, upper clamping opening be bolted to connection in front mold and
In rear mold.
In the present invention, sealing structure is equipped between the through-hole and support bar.
In the present invention, cooling structure is equipped in the support bar.
In the present invention, the end template is similar " u "-shaped shape,
The present invention has the advantages that the present invention is equipped with through-hole on bed die, the support bar that can do stretching motion is installed in through-hole,
When blow bottle process, support bar is stretched out from mold cavity bottoms and is held in the bottle base bottom for gradually stretching and expanding
The heart, bottle base bottom slowed down tensile speed by support point position or pause stretches, by the periphery of support point in air pressure and
Continued extension under the action of own material inertia, so that bottle base bottom be made to be pre-formed the cone bottom high by support point, periphery is low；In advance
After being initially formed cone bottom, support bar guidance bottle base bottom directly falls in the center of mold cavity bottoms, and bottle base expands and is close to die cavity
Then inner wall is cooled into blow-molded container.The present invention draws the material of bottle base bottom adequately by the support of support bar
It stretches, is more equally distributed in bottle bottom, available better cooling and shaping.It, not only can be with due to adequately being stretched
The internal stress for reducing bottom of bottle, reduces the probability of explosion, but also can mitigate the weight of base material, reaches the effect for subtracting grammes per square metre
Fruit.Further, the guidance of support bar directly falls in the center of mold cavity bottoms, even if stretch rod rate is unstable, stretch rod
Rigidity is insufficient, the phenomenon that bottle base bottom is eccentric, bottle base radial circumference material is unevenly distributed will not occurs, and ensure that blow molding is held
Device uniform wall thickness enhances container integral strength.
Detailed description of the invention
The present invention is further described with embodiment with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is the mounting structure schematic diagram of driving mechanism；
Fig. 3 is the structural schematic diagram of end template.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Referring to figs. 1 to Fig. 3, the present embodiment is disclosed is a kind of axial direction twocouese positioning stretches hollow blow molding mould
Tool, front mold 2 and rear mold 3, the bed die 4 positioned at 1 bottom of die cavity, the bed die for installing bed die 4 including being encircled into die cavity 1
The top of plate 5, backboard 1 and backboard 2 12 for fixing front mold 2 and rear mold 3 respectively, the die cavity 1 is equipped with upper folder
Mouth 14, upper clamping opening 14 is bolted to connection in front mold 2 and rear mold 3, and stretch rod protrudes into die cavity 1 out of upper clamping opening
It is interior.It is equipped with criss-cross cooling water channel in the front mold 2 and rear mold 3 and is connect with fast joint.
The rib of a plurality of protrusion is evenly distributed on the bed die 4, a plurality of rib assembles and forms convex at the middle part of bed die 4
The boss-shaped risen, the positive middle part of the boss are equipped with the through-hole 6 through bed die 4, and stretching motion can be done by being equipped in the through-hole 6
On the same axis, the support bar 7 can protrude into die cavity 1 under the action of driving mechanism 8 for support bar 7, support bar 7 and stretch rod
Middle part, the outside of die cavity 1 is arranged in the driving mechanism 8.
As preferred embodiment, the top of the support bar 7 is the platform 9 that will not puncture bottle base bottom, described flat
The diameter of platform 9 is greater than the diameter of through-hole 6 and its top is curved, and the middle part of the curved surface is equipped with the pit 13 inwardly concaved,
Increase the thickness on bottle vertex.
Further, the driving mechanism 8 can be pneumatic cylinder, hydraulic cylinder or motor, when only needing single support, preferably gas
Cylinder, rapid reaction, at low cost, when needing repeatedly reciprocal support, preferably private takes motor and its transmission mechanism, passes through private clothes electricity
Machine can control reciprocal number and flexible amplitude.In the present embodiment, the driving mechanism 8 by a plurality of connecting rod 10 with
Bed die 4 connects, and the end template 5 is similar " u "-shaped shape, and the vacancy that connecting rod 10 passes through end template 5 is connect with driving mechanism 8,
A plurality of connecting rod 10 surrounds hollow driving mechanism mounting bracket, by driving mechanism mounting bracket by driving mechanism 8 and bed die 4
It separates, has both facilitated the installation of driving mechanism 8, also avoid having an impact between each other, prolong the service life.
As a further preference, due to support bar 7 in through-hole 6 frequent high-speed motion, for extend support bar 7 use
Service life, the side surface of the support bar 7 are equipped with wear-resistant coating, which is the table relatively smooth, coefficient of friction is small
Face.
The above description is only a preferred embodiment of the present invention, as long as realizing the skill of the object of the invention with essentially identical means
Art scheme belongs within protection scope of the present invention.
Claims (10)
1. it is a kind of axial direction twocouese positioning stretch hollow blow molding mold, including be encircled into die cavity (1) front mold (2) and after
Mold (3), bed die (4), the end template (5) for installing bed die (4) for being located at die cavity (1) bottom, it is characterised in that: the bottom
Mould (4) is equipped with through-hole (6), is equipped with the support bar (7) that can do stretching motion in the through-hole (6), the support bar (7) exists
The middle part of die cavity (1) can be protruded under the action of driving mechanism (8).
2. a kind of axial twocouese positioning according to claim 1 stretches hollow blow molding mold, it is characterised in that: institute
State the middle part that through-hole (6) is located at bed die (4).
3. a kind of axial twocouese positioning according to claim 1 or 2 stretches hollow blow molding mold, feature exists
In: the top of the support bar (7) is platform (9), and the diameter of the platform (9) is greater than the diameter of through-hole (6).
4. a kind of axial twocouese positioning according to claim 3 stretches hollow blow molding mold, it is characterised in that: institute
The top for stating platform (9) is curved, and the middle part of the curved surface is equipped with the pit (13) inwardly concaved.
5. a kind of axial twocouese positioning according to claim 3 stretches hollow blow molding mold, it is characterised in that: institute
Stating driving mechanism (8) is pneumatic cylinder, hydraulic cylinder or motor.
6. a kind of axial twocouese positioning according to claim 5 stretches hollow blow molding mold, it is characterised in that: institute
It states driving mechanism (8) and is connect by a plurality of connecting rod (10) with bed die (4).
7. a kind of axial twocouese positioning according to claim 6 stretches hollow blow molding mold, it is characterised in that: institute
It states a plurality of connecting rod (10) and surrounds hollow driving mechanism mounting bracket.
8. a kind of axial twocouese positioning according to claim 1 stretches hollow blow molding mold, it is characterised in that: institute
The top for stating die cavity (1) is equipped with upper clamping opening (14), and upper clamping opening (14) is bolted to connection in front mold (2) and rear mold
(3) on.
9. a kind of axial twocouese positioning according to claim 1 stretches hollow blow molding mold, it is characterised in that: institute
The side surface for stating support bar (7) is equipped with wear-resistant coating.
10. a kind of axial twocouese positioning according to claim 1 stretches hollow blow molding mold, it is characterised in that:
The end template (5) is similar " u "-shaped shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648827.8A CN109454855B (en) | 2018-12-30 | 2018-12-30 | Axial bidirectional positioning stretching hollow blow molding mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648827.8A CN109454855B (en) | 2018-12-30 | 2018-12-30 | Axial bidirectional positioning stretching hollow blow molding mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109454855A true CN109454855A (en) | 2019-03-12 |
| CN109454855B CN109454855B (en) | 2024-04-02 |
Family
ID=65616099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811648827.8A Active CN109454855B (en) | 2018-12-30 | 2018-12-30 | Axial bidirectional positioning stretching hollow blow molding mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109454855B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303664A (en) * | 2019-07-24 | 2019-10-08 | 广东星联精密机械有限公司 | A kind of blow molding mould and method being equipped with heating tensioning system |
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|---|---|---|---|---|
| FR2462989A1 (en) * | 1979-08-07 | 1981-02-20 | Yoshino Kogyosho Co Ltd | Blow moulding bottles from saturated polyester - including maintaining the blown article against the mould for a short time to stabilise it |
| JPH0524099A (en) * | 1991-07-18 | 1993-02-02 | Denki Kagaku Kogyo Kk | Method for biaxial stretch blow molding and blow mould for the same |
| US5681520A (en) * | 1994-09-26 | 1997-10-28 | A.K. Technical Laboratory, Inc. | Method of molding large containers by the process of stretch blow molding |
| JP2002067131A (en) * | 2000-08-30 | 2002-03-05 | Aoki Technical Laboratory Inc | Stretch blow molding method and blow mold |
| WO2010122991A1 (en) * | 2009-04-23 | 2010-10-28 | 東洋製罐株式会社 | Method and device for stretch blow molding |
| CN102133797A (en) * | 2010-01-27 | 2011-07-27 | 王自强 | Movable mold board and bottom mold linkage mechanism of plastic bottle-blowing machine |
| CN103260852A (en) * | 2010-10-15 | 2013-08-21 | 阿美科有限责任公司 | Stretch rod system for liquid or hydraulic blow molding |
| CN107683199A (en) * | 2015-04-30 | 2018-02-09 | 株式会社吉野工业所 | Liquid Blow Molding Apparatus And Liquid Blow Molding Method |
| WO2018074315A1 (en) * | 2016-10-18 | 2018-04-26 | 東洋製罐株式会社 | Blow molding device and method for manufacturing synthetic resin container using same |
| CN209440766U (en) * | 2018-12-30 | 2019-09-27 | 广东星联精密机械有限公司 | A kind of axial direction twocouese positioning stretching hollow blow molding mold |
-
2018
- 2018-12-30 CN CN201811648827.8A patent/CN109454855B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2462989A1 (en) * | 1979-08-07 | 1981-02-20 | Yoshino Kogyosho Co Ltd | Blow moulding bottles from saturated polyester - including maintaining the blown article against the mould for a short time to stabilise it |
| JPH0524099A (en) * | 1991-07-18 | 1993-02-02 | Denki Kagaku Kogyo Kk | Method for biaxial stretch blow molding and blow mould for the same |
| US5681520A (en) * | 1994-09-26 | 1997-10-28 | A.K. Technical Laboratory, Inc. | Method of molding large containers by the process of stretch blow molding |
| JP2002067131A (en) * | 2000-08-30 | 2002-03-05 | Aoki Technical Laboratory Inc | Stretch blow molding method and blow mold |
| WO2010122991A1 (en) * | 2009-04-23 | 2010-10-28 | 東洋製罐株式会社 | Method and device for stretch blow molding |
| CN102414009A (en) * | 2009-04-23 | 2012-04-11 | 东洋制罐株式会社 | Method and device for stretch blow molding |
| CN102133797A (en) * | 2010-01-27 | 2011-07-27 | 王自强 | Movable mold board and bottom mold linkage mechanism of plastic bottle-blowing machine |
| CN103260852A (en) * | 2010-10-15 | 2013-08-21 | 阿美科有限责任公司 | Stretch rod system for liquid or hydraulic blow molding |
| CN107683199A (en) * | 2015-04-30 | 2018-02-09 | 株式会社吉野工业所 | Liquid Blow Molding Apparatus And Liquid Blow Molding Method |
| WO2018074315A1 (en) * | 2016-10-18 | 2018-04-26 | 東洋製罐株式会社 | Blow molding device and method for manufacturing synthetic resin container using same |
| CN209440766U (en) * | 2018-12-30 | 2019-09-27 | 广东星联精密机械有限公司 | A kind of axial direction twocouese positioning stretching hollow blow molding mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303664A (en) * | 2019-07-24 | 2019-10-08 | 广东星联精密机械有限公司 | A kind of blow molding mould and method being equipped with heating tensioning system |
| WO2021012839A1 (en) * | 2019-07-24 | 2021-01-28 | 广东星联精密机械有限公司 | Blow molding mould and method equipped with heating and stretching system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109454855B (en) | 2024-04-02 |
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