CN220348938U - Bottle embryo injection molding device - Google Patents
Bottle embryo injection molding device Download PDFInfo
- Publication number
- CN220348938U CN220348938U CN202321759041.XU CN202321759041U CN220348938U CN 220348938 U CN220348938 U CN 220348938U CN 202321759041 U CN202321759041 U CN 202321759041U CN 220348938 U CN220348938 U CN 220348938U
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- die holder
- injection molding
- die
- bottle
- embryo
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 42
- 210000001161 mammalian embryo Anatomy 0.000 title claims abstract description 39
- 238000002347 injection Methods 0.000 claims abstract description 38
- 239000007924 injection Substances 0.000 claims abstract description 38
- 239000000110 cooling liquid Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 abstract description 24
- 229920003023 plastic Polymers 0.000 abstract description 24
- 238000000071 blow moulding Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 210000002257 embryonic structure Anatomy 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008162 cooking oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000014101 wine Nutrition 0.000 description 1
Abstract
The utility model relates to the field of plastic bottle blow molding, in particular to a bottle embryo injection molding device. The injection molding cavity assembly comprises an upper die holder and a lower die holder, and a half die is matched between the upper die holder and the lower die holder; the half mould is provided with a plurality of half embryo cavities, the upper part of each half embryo cavity is matched with the core injection mould assembly, and the lower part is matched with the hot runner group. According to the bottle embryo injection molding device, plastic heated into fluid enters a half embryo cavity of a half mold from a hot runner group to form a bottle embryo, the bottom of the bottle embryo can achieve a thick-wall effect which cannot be achieved by a conventional bottle embryo, a bottle opening is formed in a bottle opening mold assembly, cooling liquid is injected into a core injection mold assembly, and a product is cooled to form the bottle embryo with a thick wall. Four corners of the lower die holder are respectively provided with a guide post, the guide posts freely penetrate through the upper die holder, springs are sleeved on the guide posts, and the demolding can be conveniently performed by means of the elasticity of the springs during demolding, so that the quality of products is improved.
Description
Technical Field
The utility model relates to the field of injection molding, in particular to a bottle embryo injection molding device.
Background
The plastic bottle is used as a common container in daily life, has the advantages of being not easy to break, low in cost, high in transparency, food-grade raw materials and the like, and has wide application market; plastic bottles are used for packaging liquids or solids such as beverages, honey, wine, cooking oil, etc.
The plastic bottle is generally made of Polyester (PET), polyethylene (PE), polypropylene (PP) and the like, and is subjected to injection molding, extrusion blowing or blow molding by a plastic mold after being heated at a high temperature after being added with a corresponding organic solvent.
Among them, plastic bottle blow molding is a common plastic container molding process, and plastic bottles of various shapes and sizes can be produced.
The method mainly comprises the following steps:
raw material preparation: heating plastic particles to a molten state, and uniformly mixing;
preparing a die: selecting a proper mold and a proper mold heater, and installing and debugging according to requirements;
preparing a prefabricated part: extruding the molten plastic in a blow molding machine through an extruder and forming into a preform in a rough tube shape;
filling a die: placing the prefabricated part into a mould, adjusting the temperature and the pressure according to the requirement, and blowing the plastic into the shape in the mould;
cooling and shaping: cooling in the mold for some time to fix the plastic and cool;
taking out the product: and taking the finished product out of the die, and cleaning, checking and packaging.
It should be noted that the blow molding process should be adjusted according to different plastic, product shape and size, etc. factors to ensure product quality and production efficiency.
At present, as a mainstream processing technology of a plastic hollow container, a one-step injection stretch blow method is adopted, a plastic raw material is subjected to plasticization by an injection system, then is injected into an injection mold at a high speed and under high pressure in a molten state, a bottle blank with a certain residual temperature is obtained through rapid cooling, the bottle blank is rapidly demoulded and converted into a blow mold forming cavity, compressed air is filled into the inner cavity of the bottle blank and is simultaneously longitudinally stretched, the bottle blank is completely matched with the bottle mold cavity, and a required hollow product is obtained after cooling.
The bottle blank mould before blow molding is usually used in the processing process of the bottle, the prior bottle blowing mould can realize multi-cavity high productivity, but the bottle blank is generally in a straight cylinder shape, the produced plastic bottle bottom is thinner, however, the thicker plastic bottle bottom needs to be produced, the lower half body of the bottle blank is larger than the upper half body, and the bottle blank cannot be demoulded along the upward direction, so that a new forming device needs to be designed.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a bottle embryo injection molding device.
The technical scheme adopted by the utility model is as follows: the bottle embryo injection molding device comprises a hot runner group, an injection molding cavity component, a bottle opening mold component and an injection mold component which are sequentially arranged from bottom to top, wherein the injection molding cavity component comprises an upper mold base and a lower mold base, and a half mold is matched between the upper mold base and the lower mold base; the half mould is provided with a plurality of half embryo cavities, the upper part of each half embryo cavity is matched with the core injection mould assembly, and the lower part is matched with the hot runner group.
In order to better realize the utility model, four corners of the lower die holder are respectively provided with a guide post, the guide posts freely penetrate through the upper die holder, and the guide posts are sleeved with springs.
In order to better realize the utility model, the lower die holder is provided with half limiting blocks clamped at two sides of the half die.
In order to better realize the utility model, two ends of the half mould are provided with half embryo cavity demoulding support blocks which facilitate demoulding.
In order to better realize the utility model, the hot runner group comprises a base, and a runner main board is arranged on the base; the runner main board is provided with a transverse runner main hole and a plurality of vertical split nozzles, and each vertical split nozzle is connected with a corresponding half embryo cavity through an injection molding interface piece.
In order to better realize the utility model, the bottle mouth module comprises a bottle mouth die holder which is arranged on an upper die holder; the bottle mouth die holder is provided with a bottle mouth die, and the bottle mouth die is matched with the injection die assembly.
In order to better realize the utility model, the upper die holder is provided with die locking mechanisms positioned at two sides of the bottleneck die holder.
In order to better realize the utility model, the core injection mold component comprises a core injection mold base, and a main pipeline is arranged in the core injection mold base; the core injection mold comprises a core injection mold seat, a main pipe, a cooling liquid interface, a core mold body, a cooling channel and a half embryo cavity, wherein the cooling liquid interface is arranged outside the core injection mold seat and connected with the main pipe, the core mold body is arranged at the lower part of the core injection mold seat, the cooling channel is arranged inside the core mold body, the upper end of the cooling channel is communicated with the main pipe, and the lower end of the cooling channel is communicated with the half embryo cavity.
The beneficial effects of the utility model are as follows: according to the bottle embryo injection molding device, through the cooperation of the hot runner group, the bottle opening die assembly, the core injection die assembly, the upper die base, the lower die base, the half die, the half embryo cavities and the like, plastic heated into fluid enters the half embryo cavities of the half die from the hot runner group to form bottle embryos, the bottom of the bottle embryos can achieve the thick-wall effect (the thickness is generally about 2.5 times of the thickness of the bottom of a conventional bottle embryo molding bottle), the bottle opening is formed in the bottle opening die assembly, cooling liquid is injected into the core injection die assembly, and the product is cooled to form the bottle embryos with thick walls. Four corners of the lower die holder are respectively provided with a guide post, the guide posts freely penetrate through the upper die holder, springs are sleeved on the guide posts, and the demolding can be conveniently performed by means of the elasticity of the springs during demolding, so that the quality of products is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model 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. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic view of a preform injection molding apparatus according to the present utility model;
FIG. 2 is a schematic view of the structure of the inside of the preform injection molding apparatus of the present utility model;
FIG. 3 is a schematic view of a half mold of the injection molding apparatus for bottle blanks according to the present utility model;
FIG. 4 is a schematic view of a half mold of the injection molding apparatus of the present utility model in a closed configuration;
FIG. 5 is a schematic view of a half mold of the injection molding device for bottle blanks according to the present utility model;
FIG. 6 is a schematic view of the interior of a half mold of the preform injection molding apparatus of the present utility model;
FIG. 7 is a schematic view of a bottle blank and a corresponding plastic bottle of a bottle blank injection molding device of the prior art;
FIG. 8 is a schematic view of a bottle blank and a corresponding plastic bottle produced by the bottle blank injection molding device of the present utility model;
in the drawing, a 1-hot runner group, a 2-injection molding cavity assembly, a 3-bottle mouth mold assembly, a 4-injection mold assembly, a 5-base, a 6-transverse runner main hole, a 7-runner main plate, an 8-vertical split nozzle, a 9-lower mold seat, a 10-upper mold seat, an 11-half mold, a 12-spring, a 13-bottle mouth mold seat, a 14-bottle mouth mold flap, a 15-mold locking mechanism, a 16-cooling liquid interface, a 17-injection mold seat, an 18-core mold body, a 19-cooling channel, a 20-bottle embryo, a 21-injection molding interface piece, a 22-main pipe, a 23-half limiting block, a 24-half embryo cavity demolding supporting block and a 25-half embryo cavity.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
Examples:
as shown in fig. 1 to 8, the bottle blank injection molding device comprises a hot runner group 1, an injection molding cavity assembly 2, a bottle mouth mold assembly 3 and an injection core mold assembly 4 which are sequentially arranged from bottom to top, wherein the injection molding cavity assembly 2 comprises an upper mold base 10 and a lower mold base 9, and a half mold 11 is matched between the upper mold base 10 and the lower mold base 9; a plurality of half embryo cavities 25 are arranged in the half mould 11, the upper part of each half embryo cavity 25 is matched with the core injection mould assembly 4, and the lower part is matched with the hot runner group 1. According to the bottle blank injection molding device, through the cooperation of the hot runner group 1, the bottle mouth mold assembly 3, the injection core mold assembly 4, the upper mold seat 10, the lower mold seat 9, the half mold 11, the half mold cavities 25 and the like, plastic heated into fluid enters the half mold cavities 25 of the half mold 11 from the hot runner group 1 to form bottle blanks 20, the bottom of the bottle blanks can achieve the effect of thick walls (the thickness is generally about 2.5 times of the thickness of the bottom of a conventional bottle blank molding bottle), the bottle mouth is formed in the bottle mouth mold assembly, cooling liquid is injected into the injection core mold assembly 4, and the product is cooled to form the bottle blanks 20 with thick walls.
Preferably, a guide post is respectively arranged at four corners of the lower die holder 9, the guide post freely penetrates through the upper die holder 10, and a spring 12 is sleeved on the guide post. Four corners of the lower die holder 9 are respectively provided with a guide post which freely penetrates through the upper die holder 10, the guide posts are sleeved with springs 12, and the demolding can be conveniently performed by means of the elasticity of the springs 12 during demolding, so that the quality of products is improved.
Preferably, the half limiting blocks 23 clamped at two sides of the half mold 11 are arranged on the lower mold base 9, so that the half mold 11 can be conveniently clamped, and the molding quality is improved. Preferably, half embryo cavity demolding support blocks 24 which facilitate demolding are arranged at two ends of the half mold 11.
Preferably, the hot runner assembly 1 includes a base 5, and a runner main board 7 is disposed on the base 5; the runner main board 7 is provided with a transverse runner main hole 6 and a plurality of vertical split nozzles 8, and each vertical split nozzle 8 is connected with a corresponding half embryo cavity 25 through an injection molding interface piece 21. The plastic heated into fluid flows into the runner main plate 7 from the transverse runner main hole 6, the fluid fluidity is ensured by continuous heating, and then the plastic flows into the bottle embryo 20 at the production place of the half embryo cavity 25 from the vertical split nozzle 8 and the injection molding interface piece 21. It should be noted that, an auger stirring device may be further disposed in the flow channel main board 7 to ensure fluidity.
Preferably, the bottleneck mould assembly 3 comprises a bottleneck mould base 13, and the bottleneck mould base 13 is arranged on the upper mould base 10; the bottleneck mould holder 13 is provided with a bottleneck mould flap 14, and the bottleneck mould flap 14 is matched with the injection mould assembly 4. Further preferably, the upper die holder 10 is provided with a die locking mechanism 15 positioned at two sides of the bottleneck die holder 13. The bottle mouth mold halves 14 are generally two parts, and the bottle mouth mold bases 13 are also two parts, and when in operation, the bottle mouth mold bases 13 drive the bottle mouth mold halves 14 to lock the mold through the mold locking mechanism 15.
Preferably, the core injection mold assembly 4 comprises a core injection mold seat 17, and a main pipe 22 is arranged in the core injection mold seat 17; the cooling liquid interface 16 connected with the main pipeline 22 is arranged outside the core injection mold seat 17, the core mold body 18 is arranged at the lower part of the core injection mold seat 17, the cooling channel 19 is arranged inside the core mold body 18, the upper end of the cooling channel 19 is communicated with the main pipeline 22, and the lower end of the cooling channel is communicated with the half embryo cavity 25. The core injection die holder 17 drives the core die body 18 to be inserted into the bottle blanks, the cooling liquid interface 16 is connected with cooling liquid, the cooling liquid is divided into various cooling channels 19 through the main pipeline 22, reaches various bottle blanks 20, and cools and forms the bottle blanks 20.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (8)
1. Bottle embryo injection moulding device, its characterized in that: the injection molding die comprises a hot runner group (1), an injection molding die cavity assembly (2), a bottleneck die assembly (3) and an injection die module (4) which are sequentially arranged from bottom to top, wherein the injection molding die cavity assembly (2) comprises an upper die holder (10) and a lower die holder (9), and a half die (11) is matched between the upper die holder (10) and the lower die holder (9); a plurality of half embryo cavities (25) are arranged in the half mould (11), the upper part of each half embryo cavity (25) is matched with the core injection mould assembly (4), and the lower part is matched with the hot runner group (1).
2. The preform injection molding apparatus of claim 1, wherein: four corners of the lower die holder (9) are respectively provided with a guide post, the guide posts freely penetrate through the upper die holder (10), and springs (12) are sleeved on the guide posts.
3. The preform injection molding apparatus of claim 2, wherein: half limiting blocks (23) clamped on two sides of the half die (11) are arranged on the lower die holder (9).
4. A preform injection molding apparatus according to claim 3, wherein: and half embryo cavity demolding supporting blocks (24) which are convenient to demold are arranged at the two ends of the half mold (11).
5. The preform injection molding apparatus of claim 4, wherein: the hot runner group (1) comprises a base (5), and a runner main board (7) is arranged on the base (5); the runner main board (7) is provided with a transverse runner main hole (6) and a plurality of vertical flow diversion nozzles (8), and each vertical flow diversion nozzle (8) is connected with a corresponding half embryo cavity (25) through an injection molding interface piece (21).
6. The preform injection molding apparatus of claim 5, wherein: the bottle mouth die assembly (3) comprises a bottle mouth die holder (13), and the bottle mouth die holder (13) is arranged on the upper die holder (10); the bottle mouth die holder (13) is provided with a bottle mouth die section (14), and the bottle mouth die section (14) is matched with the core injection die assembly (4).
7. The preform injection molding apparatus of claim 6, wherein: the upper die holder (10) is provided with die locking mechanisms (15) positioned at two sides of the bottleneck die holder (13).
8. The preform injection molding apparatus of claim 7, wherein: the core injection mold assembly (4) comprises a core injection mold seat (17), and a main pipeline (22) is arranged in the core injection mold seat (17); the cooling liquid joint (16) connected with the main pipeline (22) is arranged outside the core injection die holder (17), the core die body (18) is arranged at the lower part of the core injection die holder (17), and a cooling channel (19) communicated with the main pipeline (22) is arranged in the core die body (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321759041.XU CN220348938U (en) | 2023-07-05 | 2023-07-05 | Bottle embryo injection molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321759041.XU CN220348938U (en) | 2023-07-05 | 2023-07-05 | Bottle embryo injection molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220348938U true CN220348938U (en) | 2024-01-16 |
Family
ID=89500654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321759041.XU Active CN220348938U (en) | 2023-07-05 | 2023-07-05 | Bottle embryo injection molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220348938U (en) |
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2023
- 2023-07-05 CN CN202321759041.XU patent/CN220348938U/en active Active
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| GR01 | Patent grant | ||
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