CN111890663A - Low-damage easy-demoulding bottle blank - Google Patents
Low-damage easy-demoulding bottle blank Download PDFInfo
- Publication number
- CN111890663A CN111890663A CN202010598511.3A CN202010598511A CN111890663A CN 111890663 A CN111890663 A CN 111890663A CN 202010598511 A CN202010598511 A CN 202010598511A CN 111890663 A CN111890663 A CN 111890663A
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- Prior art keywords
- embryo
- wall
- bottle
- neck
- blank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000001161 mammalian embryo Anatomy 0.000 claims abstract description 71
- 230000007704 transition Effects 0.000 claims abstract description 36
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000000071 blow moulding Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
-
- 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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- 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
- B29C49/70—Removing or ejecting blown articles from the mould
-
- 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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
The invention relates to a low-damage easy-demoulding bottle blank, which comprises: integrated into one piece's embryo mouth, embryo neck, embryo body and embryo end, the tip of embryo mouth is equipped with a plurality of first beaded finish, the middle part of embryo mouth is equipped with the second beaded finish, embryo neck outer wall inclines to the outside, the inner wall of embryo neck inclines to the inboard, and the embryo body includes straightway and changeover portion, the inner wall of changeover portion is the arc setting, the embryo end with the changeover portion passes through circular arc transition form and connects. Because set up first beaded finish and second beaded finish, at the in-process of bottle embryo demolding, but first beaded finish and second beaded finish atress simultaneously, the stress surface when having increased the demolding has shortened the shaping cycle, make the bottle embryo under the complete refrigerated condition alright ejecting not, the production efficiency is improved, the production cost is reduced, simultaneously because increased the stress surface, the bottle embryo is more stable when the demolding, the probability of gluing is reduced, can protect the long-time operation of mould effectively, the damage of bottle embryo has been reduced.
Description
Technical Field
The invention relates to the technical field of plastic bottles, in particular to a low-damage easy-demoulding bottle blank.
Background
The plastic bottle is produced through injection molding in an injection molding machine and blow molding in a bottle blowing machine before the bottle blank is hardened. The general bottle embryo is in the shape of a test tube and consists of an embryo opening, an embryo neck, an embryo body and an embryo bottom, wherein the embryo opening and the embryo neck are not moved in the blow molding process, the embryo body and the embryo bottom are expanded and thinned under the action of internal air pressure, and the outer side surface of the embryo body is molded in a mold of a plastic bottle.
However, the thickness of the neck part of the bottle blank is smaller than that of the bottom part of the bottle blank, the neck part of the bottle blank is arranged in a straight line and smoothly with the inner side wall of the bottle blank, and the outer side surface of the bottle blank is in a slope or arc surface shape, so that the diameter of the neck part of the bottle blank is smaller than that of the mouth and the body of the bottle blank, and when the bottle blank is demolded, the outer side wall of the neck part of the bottle blank is rubbed with a mold, so that the outer side wall of the bottle blank is scratched or damaged, and the appearance and the quality of a.
Disclosure of Invention
In order to solve the technical problems, the invention provides a low-damage easy-demoulding bottle blank which has the advantages of convenience in demoulding and low damage.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a low damage easy release bottle preform comprising: integrated into one piece's embryo mouth, embryo neck, embryo body and embryo end, the tip of embryo mouth is equipped with a plurality of first beaded finish, the middle part of embryo mouth is equipped with the second beaded finish, embryo neck outer wall inclines to the outside, the inner wall of embryo neck inclines to the inboard, the embryo body includes straightway and changeover portion, the outer wall of changeover portion including inside sunken arc transition face and with the transition conical surface that the arc transition face is connected, the inner wall of changeover portion is the arc setting, the embryo end with the changeover portion passes through the circular arc transition form and connects.
According to the technical scheme, the first reinforcing ring and the second reinforcing ring are arranged, so that the first reinforcing ring and the second reinforcing ring can be stressed simultaneously in the mold stripping process of the bottle blank, the stress surface in the mold stripping process is increased, the molding period is shortened, the bottle blank can be ejected under the condition of incomplete cooling, the production efficiency is improved, the production cost is reduced, meanwhile, due to the fact that the stress surface is increased, the bottle blank is more stable in the mold stripping process, the mold sticking probability is reduced, the mold can be effectively protected from long-time operation, and the damage to the bottle blank is reduced; because the inner wall of the preform neck is inwards sunken, the diameter of the inner wall of the preform neck is larger than that of the inner wall of the preform body, the damage caused in the demolding process of the preform is reduced, the finished product qualification rate of the plastic bottle after blow molding is improved, in the blow molding process, the heating temperature is higher at the position which is closer to the heating lamp tube under the same wall thickness, the material at the position where the temperature of the preform is lower during blow molding is not easy to stretch, the thickness of the transition section and the preform bottom is smaller than the thickness of a straight line through the arrangement of the transition section and the preform bottom, the temperature and the thickness of the preform body and the preform bottom can form reasonable distribution during heating, and the mechanical properties of the preform, such as compression resistance, pressure resistance and the like, are ensured.
As a preferable scheme of the present invention, a plurality of auxiliary positioning rings are further disposed between the first reinforcing ring and the second reinforcing ring.
As a preferable scheme of the invention, a plurality of the auxiliary positioning rings are uniformly distributed.
Realize above-mentioned technical scheme, through the assistance-localization real-time ring in the bottle embryo drawing of patterns together play fixed and the effect of strengthening with first beaded finish and second beaded finish for the drawing of patterns process is more stable.
In a preferred embodiment of the present invention, the ratio of the wall thickness of the straight line segment to the wall thickness of the embryo bottom is 1.15-1.3: 1.
As a preferable scheme of the invention, the transition section accounts for 1/10-3/20 of the height of the bottle blank.
As a preferable mode of the present invention, a ratio of the arc length of the arc transition surface to the length of the transition conical surface is 1.2-1.5: 1.
As a preferable scheme of the present invention, the outer wall of the embryonic neck is inclined outwardly at an angle of 1 to 1.5 °, and the inner wall of the embryonic neck is inclined inwardly at an angle of 1 to 2 °.
As a preferable aspect of the present invention, the embryonic bottom is conical, and the top of the embryonic bottom is circular arc-shaped.
By adopting the technical scheme, the thickness of the embryonic bottom can be changed more uniformly, the occurrence of the phenomenon of material accumulation of the embryonic bottom is reduced, and the processing cost is reduced.
In conclusion, the invention has the following beneficial effects:
the embodiment of the invention provides a low-damage easy-demoulding bottle blank, which comprises: integrated into one piece's embryo mouth, embryo neck, embryo body and embryo end, the tip of embryo mouth is equipped with a plurality of first beaded finish, the middle part of embryo mouth is equipped with the second beaded finish, embryo neck outer wall inclines to the outside, the inner wall of embryo neck inclines to the inboard, the embryo body includes straightway and changeover portion, the outer wall of changeover portion including inside sunken arc transition face and with the transition conical surface that the arc transition face is connected, the inner wall of changeover portion is the arc setting, the embryo end with the changeover portion passes through the circular arc transition form and connects. Because the first reinforcing ring and the second reinforcing ring are arranged, the first reinforcing ring and the second reinforcing ring can be stressed simultaneously in the mold stripping process of the bottle blank, the stress surface during mold stripping is increased, the molding period is shortened, the bottle blank can be ejected out under the condition of incomplete cooling, the production efficiency is improved, the production cost is reduced, meanwhile, because the stress surface is increased, the bottle blank is more stable during mold stripping, the probability of mold sticking is reduced, the long-time operation of the mold can be effectively protected, and the damage of the bottle blank is reduced; because the inner wall of the preform neck is inwards sunken, the diameter of the inner wall of the preform neck is larger than that of the inner wall of the preform body, the damage caused in the demolding process of the preform is reduced, the finished product qualification rate of the plastic bottle after blow molding is improved, in the blow molding process, the heating temperature is higher at the position which is closer to the heating lamp tube under the same wall thickness, the material at the position where the temperature of the preform is lower during blow molding is not easy to stretch, the thickness of the transition section and the preform bottom is smaller than the thickness of a straight line through the arrangement of the transition section and the preform bottom, the temperature and the thickness of the preform body and the preform bottom can form reasonable distribution during heating, and the mechanical properties of the preform, such as compression resistance, pressure resistance and the like, are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. a blank opening; 11. a first reinforcement ring; 12. a second reinforcement ring; 13. an auxiliary positioning ring; 2. a germ neck; 3. a blank body; 31. a straight line segment; 32. a transition section; 321. an arc transition surface; 322. a transition conical sheet; 4. and (5) embryonic bottom.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
A low damage easy release bottle preform, as shown in fig. 1, comprising: integrated into one piece's embryo mouth 1, embryo neck 2, embryo body 3 and embryo end 4, the tip of embryo mouth 1 is equipped with a plurality of first beaded finish 11, the middle part of embryo mouth 1 is equipped with second beaded finish 12, 2 outer walls of embryo neck incline to the outside, the inboard slope of inner wall of embryo neck 2, embryo body 3 includes straightway 31 and changeover portion 32, the outer wall of changeover portion 32 includes inside sunken arc transition face 321 and the transition conical surface that is connected with arc transition face 321, the inner wall of changeover portion 32 is the arc setting, the embryo end 4 is connected through circular arc transition form with changeover portion 32.
Simultaneously, still be equipped with a plurality of auxiliary positioning ring 13 between first beaded finish 11 and second beaded finish 12, a plurality of auxiliary positioning ring 13 evenly distributed, in this embodiment, auxiliary positioning ring 13 evenly is provided with three, plays fixed and reinforced effect together with first beaded finish 11 and second beaded finish 12 in the bottle embryo drawing of patterns through auxiliary positioning ring 13 for drawing of patterns process is more stable.
Specifically, the wall thickness ratio of the straight line section 31 to the wall thickness of the blank bottom 4 is 1.15-1.3:1, in the embodiment, the wall thickness ratio of the straight line section 31 to the wall thickness ratio of the blank bottom 4 is 1.2:1, the transition section 32 accounts for 1/10-3/20 of the height of the blank, in the embodiment, the transition section 32 accounts for 1/10 of the height of the blank, the ratio of the arc length of the arc transition surface 321 to the length of the transition conical surface is 1.2-1.5:1, the outward inclination angle of the outer wall of the blank neck 2 is 1-1.5 degrees, the inward inclination angle of the inner wall of the blank neck 2 is 1-2 degrees, the blank bottom 4 is conical, and the top of the blank bottom 4 is arc-shaped, so that the thickness of the blank bottom 4 can be changed more uniformly, the occurrence of the material accumulation phenomenon of the blank bottom 4 is reduced, and.
Because the first reinforcing ring 11 and the second reinforcing ring 12 are arranged, the first reinforcing ring 11 and the second reinforcing ring 12 can be stressed simultaneously in the bottle blank demolding process, the stress surface in demolding is increased, the molding period is shortened, the bottle blank can be ejected under the condition of incomplete cooling, the production efficiency is improved, the production cost is reduced, meanwhile, because the stress surface is increased, the bottle blank is more stable in demolding, the mold sticking probability is reduced, the mold can be effectively protected from long-time operation, and the damage to the bottle blank is reduced; because the inner wall of the preform neck 2 is inwards sunken, the diameter of the inner wall of the preform neck 2 is larger than that of the inner wall of the preform body 3, the damage caused in the process of demolding the preform is reduced, the finished product qualification rate of the plastic bottle after blow molding is improved, in the process of blow molding, the heating temperature is higher at the position closer to the heating lamp tube under the same wall thickness, the material is not easy to stretch at the position where the temperature of the preform is lower during blow molding, and the thicknesses of the transition section 32 and the preform bottom 4 are smaller than the linear thickness through the arrangement of the transition section 32 and the preform bottom 4, the temperatures and the thicknesses of the preform body 3 and the preform bottom 4 can form reasonable compression distribution during heating, and the mechanical properties such as compression resistance of the preform are ensured.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A low damage easy demoulding bottle blank is characterized by comprising: integrated into one piece's embryo mouth, embryo neck, embryo body and embryo end, the tip of embryo mouth is equipped with a plurality of first beaded finish, the middle part of embryo mouth is equipped with the second beaded finish, embryo neck outer wall inclines to the outside, the inner wall of embryo neck inclines to the inboard, the embryo body includes straightway and changeover portion, the outer wall of changeover portion including inside sunken arc transition face and with the transition conical surface that the arc transition face is connected, the inner wall of changeover portion is the arc setting, the embryo end with the changeover portion passes through the circular arc transition form and connects.
2. The low damage easy release bottle preform of claim 1, wherein a plurality of secondary positioning rings are further disposed between said first reinforcing ring and said second reinforcing ring.
3. The low damage easy release bottle embryo of claim 2, wherein a plurality of said secondary positioning rings are evenly distributed.
4. The low damage easy-to-demold bottle blank of claim 1, wherein the ratio of the wall thickness of said straight segment to the wall thickness of said blank bottom is 1.15-1.3: 1.
5. The low damage easy-release bottle preform of claim 1, wherein the transition section occupies 1/10-3/20 of the height of the bottle preform.
6. The low damage easy-release bottle blank as defined in claim 1, wherein the ratio of the arc length of said arc transition surface to the length of said transition conical surface is 1.2-1.5: 1.
7. The low damage easy release bottle embryo as claimed in claim 1 or 6, wherein the outer wall of the embryo neck is inclined outwardly at an angle of 1-1.5 ° and the inner wall of the embryo neck is inclined inwardly at an angle of 1-2 °.
8. The low damage easy-to-demould bottle blank as claimed in claim 1, wherein the blank bottom is conical, and the top of the blank bottom is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598511.3A CN111890663A (en) | 2020-06-28 | 2020-06-28 | Low-damage easy-demoulding bottle blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010598511.3A CN111890663A (en) | 2020-06-28 | 2020-06-28 | Low-damage easy-demoulding bottle blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111890663A true CN111890663A (en) | 2020-11-06 |
Family
ID=73207471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010598511.3A Pending CN111890663A (en) | 2020-06-28 | 2020-06-28 | Low-damage easy-demoulding bottle blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111890663A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290828A (en) * | 2021-07-02 | 2021-08-24 | 广东星联精密机械有限公司 | Bottle blank structure beneficial to stretch blow molding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102481701A (en) * | 2009-07-03 | 2012-05-30 | 海内肯供应连锁公司 | Preform, container and method for forming a container |
| CN108908785A (en) * | 2018-07-16 | 2018-11-30 | 西帕机械（杭州）有限公司 | A kind of bottle embryo with two sections of linear type embryo bodies |
| CN209290913U (en) * | 2018-11-20 | 2019-08-23 | 成都市联余精密机械有限公司 | A kind of bottle embryo that incomplete cooling can eject |
-
2020
- 2020-06-28 CN CN202010598511.3A patent/CN111890663A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102481701A (en) * | 2009-07-03 | 2012-05-30 | 海内肯供应连锁公司 | Preform, container and method for forming a container |
| CN108908785A (en) * | 2018-07-16 | 2018-11-30 | 西帕机械（杭州）有限公司 | A kind of bottle embryo with two sections of linear type embryo bodies |
| CN209290913U (en) * | 2018-11-20 | 2019-08-23 | 成都市联余精密机械有限公司 | A kind of bottle embryo that incomplete cooling can eject |
Non-Patent Citations (1)
| Title |
|---|
| 吴泊良等: "《塑料成型工艺与模具设计》", 31 December 2011, 国防工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290828A (en) * | 2021-07-02 | 2021-08-24 | 广东星联精密机械有限公司 | Bottle blank structure beneficial to stretch blow molding |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201106 |
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| RJ01 | Rejection of invention patent application after publication |