CN216544445U - Thin-wall PET bottle blank injection molding mold for food packaging - Google Patents
Thin-wall PET bottle blank injection molding mold for food packaging Download PDFInfo
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- CN216544445U CN216544445U CN202122980855.3U CN202122980855U CN216544445U CN 216544445 U CN216544445 U CN 216544445U CN 202122980855 U CN202122980855 U CN 202122980855U CN 216544445 U CN216544445 U CN 216544445U
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Abstract
The utility model belongs to the technical field of molds, and particularly relates to an injection molding mold for thin-wall PET bottle blanks for food packaging. The bottle blank forming mold comprises a bottle blank forming mold plate, wherein a plurality of bottle blank forming cavities which are symmetrical along the central line of the bottle blank forming mold plate are arranged in the bottle blank forming mold plate. In the injection molding process, the molten material is injected from the injection molding part, enters the bottle blank forming cavity, is used for injection molding of the bottle blank plastic part through the thin-wall forming auxiliary assembly, is matched with the bottle blank forming cavity, can be used for forming a plurality of PET thin-wall bottle blanks synchronously, is high in forming precision and efficiency, and after injection molding is finished, cooling water is injected into the replaceable cooling accessory, so that the formed plastic part is cooled through the replaceable cooling accessory, the cooling speed is high, the replaceable cooling accessory can be replaced, the disassembly and assembly are simple and convenient, the maintenance and use cost can be greatly reduced, and the practicability is high.
Description
Technical Field
The utility model belongs to the technical field of molds, and relates to an injection molding mold for thin-wall PET bottle blanks for food packaging.
Background
The PET plastic bottle had a smooth and glossy surface. Creep resistance, fatigue resistance, friction resistance and dimensional stability are good, abrasion is small, hardness is high, and the thermoplastic plastic has the maximum toughness; in the production of PET plastic bottles, a PET plastic bottle blank is usually injection molded by a mold and then processed. The existing PET bottle injection mold has the disadvantages that the wall of a PET bottle blank is thick in the using process, a thin-wall bottle blank plastic part is difficult to form, the forming precision and efficiency are general, cooling accessories are difficult to replace, and the maintenance and use cost is high.
In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses a high-efficiency bottle blank injection mold [ application number: 202010634058.7], including core, core sleeve, hayform block, positioning seat, forming die, gate mold core and mold plate; the core sleeve, the hafu block and the forming die are sequentially arranged outside the core. The mould has the advantages that the negative pressure source and the exhaust channel are arranged to suck the gas and dust in the forming mould cavity, so that the whole forming mould cavity can be filled with the plastic melt in a shorter time, and the injection molding efficiency is improved; the purpose that the whole forming die cavity can be filled by adopting lower injection pressure and holding pressure than the traditional structure is achieved, so that the required 'die locking force' of the die is reduced; the dust is pumped away when being generated, so that the sedimentation and aggregation of the dust are avoided, the risk of blocking the die is reduced, the abrasion of each part is reduced, and the service life of the die is prolonged; meanwhile, the times of forcibly stopping and manually cleaning the exhaust channel of the traditional die are reduced, the efficiency is improved, and the yield is improved. However, in the using process of the scheme, the wall of the PET bottle blank is still thick, a thin-wall bottle blank plastic part is difficult to form, the forming precision and efficiency are general, the cooling part is difficult to replace, and the defects of high maintenance and use cost exist.
Disclosure of Invention
The utility model aims to solve the problems and provides an injection molding mold for a thin-wall PET bottle blank for food packaging.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the thin-wall PET bottle blank injection molding mold for food packaging comprises a bottle blank molding template, wherein a plurality of bottle blank molding cavities which are symmetrical along the central line of the bottle blank molding template are arranged in the bottle blank molding template, a thin-wall molding auxiliary assembly and a replaceable cooling accessory are arranged in the bottle blank molding cavities, the replaceable cooling accessory is matched with the thin-wall molding auxiliary assembly in shape, an injection molding part is arranged above the bottle blank molding template, and the injection molding part corresponds to the bottle blank molding cavities in position.
In the thin-wall PET bottle preform injection molding mold for food packaging, the thin-wall molding auxiliary assembly comprises a thin-wall bottle preform molding auxiliary cylinder arranged in the bottle preform molding cavity, the thin-wall bottle preform molding auxiliary cylinder penetrates through the bottle preform molding cavity, and the thin-wall bottle preform molding auxiliary cylinder corresponds to the replaceable cooling accessory.
In the thin-wall PET bottle blank injection molding mold for food packaging, the top of the thin-wall bottle blank molding auxiliary cylinder is hemispherical, the bottom of the bottle blank molding template is provided with a molding cylinder fixing part, the molding cylinder fixing part is matched with the thin-wall bottle blank molding auxiliary cylinder in a clamping manner, and the molding cylinder fixing part is positioned right below the bottle blank molding cavity.
In the thin-wall PET bottle blank injection molding mold for food packaging, the molding cylinder fixing part comprises an auxiliary cylinder fixing base arranged at the bottom of the bottle blank molding template, the auxiliary cylinder fixing base is matched with the thin-wall bottle blank molding auxiliary cylinder in a clamping manner, and the auxiliary cylinder fixing base is positioned right below the bottle blank molding cavity.
In the thin-wall PET bottle preform injection molding mold for food packaging, the replaceable cooling accessory comprises a bottle preform cooling sleeve arranged in the bottle preform molding cavity, the bottle preform cooling sleeve corresponds to the thin-wall bottle preform molding auxiliary cylinder in position and is matched with the thin-wall bottle preform molding auxiliary cylinder in shape, and the cross-sectional area of the bottle preform cooling sleeve is larger than that of the thin-wall bottle preform molding auxiliary cylinder.
In the thin-wall PET bottle blank injection molding mold for food packaging, the bottom of the bottle blank cooling sleeve is provided with an alignment connecting piece, the alignment connecting piece is positioned right above the auxiliary cylinder fixing base, and the alignment connecting piece is in clamping fit with the auxiliary cylinder fixing base.
In the thin-wall PET bottle blank injection molding mold for food packaging, the alignment connecting piece comprises an alignment connecting plate arranged at the bottom of the bottle blank cooling sleeve, and the alignment connecting plate is in clamping fit with the auxiliary cylinder fixing base.
In the thin-wall PET bottle blank injection molding mold for food packaging, the top of the bottle blank cooling sleeve is provided with a top sealing part, and the top sealing part is in butt fit with the bottle blank molding cavity.
In the thin-wall PET bottle blank injection molding mold for food packaging, the top sealing part comprises a sealing injection molding cylinder block arranged at the top of the bottle blank cooling sleeve, the sealing injection molding cylinder block is in butt fit with the bottle blank molding cavity, and an injection molding hole is formed in the sealing injection molding cylinder block.
In foretell thin wall PET bottle embryo injection moulding mould for food package, the injection molding including set up the mainboard of moulding plastics above the bottle embryo shaping template, the mainboard of moulding plastics in be equipped with the owner's of moulding plastics flow hole.
Compared with the prior art, the utility model has the advantages that:
1. in the injection molding process, the molten material is injected from the injection molding part, enters the bottle blank forming cavity, is used for injection molding of the bottle blank plastic part through the thin-wall forming auxiliary assembly, is matched with the bottle blank forming cavity, can be used for forming a plurality of PET thin-wall bottle blanks synchronously, is high in forming precision and efficiency, and after injection molding is finished, cooling water is injected into the replaceable cooling accessory, so that the formed plastic part is cooled through the replaceable cooling accessory, the cooling speed is high, the replaceable cooling accessory can be replaced, the disassembly and assembly are simple and convenient, the maintenance and use cost can be greatly reduced, and the practicability is high.
2. According to the utility model, the sealing injection cylinder block is arranged to seal the top of the bottle blank cooling sleeve, so that cooling water is prevented from leaking from the top of the bottle blank cooling sleeve, the sealing property is good, and molten materials can be injected from the injection hole.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial structural schematic diagram of the present invention.
Fig. 3 is a partial structural view in another aspect of the present invention.
Fig. 4 is a partial structural view in another aspect of the present invention.
In the figure: the bottle blank forming device comprises a bottle blank forming template 1, a bottle blank forming cavity 2, a thin-wall forming auxiliary assembly 3, a replaceable cooling accessory 4, an injection molding part 5, a thin-wall bottle blank forming auxiliary cylinder 6, a forming cylinder fixing part 7, an auxiliary cylinder fixing base 8, a bottle blank cooling sleeve 9, an alignment connecting part 10, an alignment connecting plate 11, a top sealing part 12, a sealed injection molding cylinder block 13, an injection molding hole 14, an injection molding main board 15 and an injection molding main flow hole 16.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, an injection mold for thin-walled PET bottle preforms for food packaging comprises a bottle preform molding template 1, wherein a plurality of bottle preform molding cavities 2 symmetrical along the center line of the bottle preform molding template 1 are arranged in the bottle preform molding template 1, a thin-walled molding auxiliary component 3 and a replaceable cooling component 4 are arranged in each bottle preform molding cavity 2, the replaceable cooling component 4 is matched with the thin-walled molding auxiliary component 3 in shape, an injection molding part 5 is arranged above the bottle preform molding template 1, and the injection molding part 5 corresponds to the bottle preform molding cavity 2 in position.
In this embodiment, in the process of moulding plastics, pour into the melting material into from injection molding 5, the melting material gets into bottle embryo shaping chamber 2 in, mould the piece through thin wall shaping auxiliary assembly 3 for injection moulding bottle embryo, cooperation bottle embryo shaping chamber 2, but a plurality of PET thin wall bottle embryos of synchronous forming, shaping precision and efficiency are higher, after the completion of moulding plastics, the cooling water pours into to interchangeable formula cooling accessory 4 in, mould the piece through interchangeable formula cooling accessory 4 after to the shaping and cool off, the cooling rate is very fast, and interchangeable formula cooling accessory 4 can be changed, the dismouting is simple and convenient, but greatly reduced maintenance and use cost, the practicality is stronger.
Referring to fig. 1-4, the thin-wall forming auxiliary assembly 3 includes a thin-wall bottle preform forming auxiliary cylinder 6 disposed in the bottle preform forming cavity 2, the thin-wall bottle preform forming auxiliary cylinder 6 penetrates through the bottle preform forming cavity 2, and the thin-wall bottle preform forming auxiliary cylinder 6 corresponds to the replaceable cooling component 4.
Specifically, in the injection molding process, the molten material enters the bottle preform forming cavity 2, and the thin-wall bottle preform forming auxiliary cylinder 6 is matched with the bottle preform forming cavity 2, so that a plurality of PET thin-wall bottle preforms can be formed synchronously, and the forming precision and efficiency are high.
Referring to fig. 3 and 4, the top of the thin-wall bottle blank forming auxiliary cylinder 6 is hemispherical, the bottom of the bottle blank forming template 1 is provided with a forming cylinder fixing part 7, the forming cylinder fixing part 7 is in clamping fit with the thin-wall bottle blank forming auxiliary cylinder 6, and the forming cylinder fixing part 7 is positioned under the bottle blank forming cavity 2.
In this embodiment, the top of the thin-wall bottle blank forming auxiliary cylinder 6 is hemispherical, so that the molten material can conveniently slide from the top of the thin-wall bottle blank forming auxiliary cylinder 6, the molten material accumulation at the top of the thin-wall bottle blank forming auxiliary cylinder 6 is avoided, the bottom of the thin-wall bottle blank forming auxiliary cylinder 6 can be fixed through the clamping fit between the forming cylinder fixing part 7 and the thin-wall bottle blank forming auxiliary cylinder 6, and the overall stability is high.
The forming cylinder fixing part 7 comprises an auxiliary cylinder fixing base 8 arranged at the bottom of the bottle blank forming template 1, the auxiliary cylinder fixing base 8 is matched with the thin-wall bottle blank forming auxiliary cylinder 6 in a clamping manner, and the auxiliary cylinder fixing base 8 is positioned under the bottle blank forming cavity 2.
In this embodiment, through the clamping cooperation between the auxiliary cylinder fixing base 8 and the thin-wall bottle blank forming auxiliary cylinder 6, the bottom of the thin-wall bottle blank forming auxiliary cylinder 6 can be fixed, and the overall stability is high.
Referring to fig. 4, the replaceable cooling component 4 includes a bottle preform cooling sleeve 9 disposed in the bottle preform forming cavity 2, the bottle preform cooling sleeve 9 corresponds to the thin-walled bottle preform forming auxiliary cylinder 6 in position and has a shape suitable for the thin-walled bottle preform forming auxiliary cylinder 6, and the cross-sectional area of the bottle preform cooling sleeve 9 is greater than the cross-sectional area of the thin-walled bottle preform forming auxiliary cylinder 6.
In this embodiment, after the injection molding is completed, the cooling water is introduced into the bottle preform cooling sleeve 9, and the molded plastic part is cooled by the bottle preform cooling sleeve 9, so that the cooling speed is high, the cross-sectional area of the bottle preform cooling sleeve 9 is larger than that of the thin-wall bottle preform molding auxiliary cylinder 6, and the cooling area is large.
The bottle blank cooling sleeve 9 bottom be equipped with counterpoint connecting piece 10, counterpoint connecting piece 10 be located auxiliary cylinder unable adjustment base 8 directly over, counterpoint connecting piece 10 with auxiliary cylinder unable adjustment base 8 looks joint cooperation.
In this embodiment, the alignment connector 10 is used for fixing the bottom of the bottle blank cooling sleeve 9, so as to prevent the bottom of the bottle blank cooling sleeve 9 from being angularly shifted in the cooling process, and improve the cooling accuracy.
The alignment connecting piece 10 comprises an alignment connecting plate 11 arranged at the bottom of the bottle blank cooling sleeve 9, and the alignment connecting plate 11 is in clamping fit with the auxiliary cylinder fixing base 8.
In this embodiment, counterpoint connecting plate 11 is used for fixing bottle embryo cooling sleeve 9 bottom, avoids bottle embryo cooling sleeve 9 bottom to take place the angular deflection in the cooling process, has improved refrigerated accuracy.
Referring to fig. 4, the top of the bottle preform cooling sleeve 9 is provided with a top sealing portion 12, and the top sealing portion 12 is in abutting fit with the bottle preform forming cavity 2.
In this embodiment, the top sealing portion 12 is used for sealing the top of the bottle preform cooling sleeve 9, so as to prevent the cooling water from leaking from the top of the bottle preform cooling sleeve 9, and the sealing performance is good.
Referring to fig. 2 and 4, the top sealing portion 12 includes a sealing injection cylinder block 13 disposed at the top of the bottle blank cooling sleeve 9, the sealing injection cylinder block 13 is in abutting fit with the bottle blank forming cavity 2, and an injection hole 14 is disposed in the sealing injection cylinder block 13.
In this embodiment, the sealing injection molding cylinder block 13 is used for sealing the top of the bottle preform cooling sleeve 9, so as to prevent cooling water from leaking from the top of the bottle preform cooling sleeve 9, the sealing performance is good, and molten materials can be injected from the injection molding hole 14.
Referring to fig. 1, the injection molding part 5 includes an injection molding main plate 15 disposed above the bottle blank molding plate 1, and an injection molding main flow hole 16 is disposed in the injection molding main plate 15.
In this embodiment, during the injection molding process, the molten material is injected into the injection molding main flow hole 16 from the injection molding main flow plate 15, and then the molten material is delivered to the injection molding hole 14 through the injection molding main flow hole 16 and injected into the cavity for injection molding.
The working principle of the utility model is as follows:
in the injection process, the molten material is injected from the injection main board 15 to the injection main flow hole 16, then the molten material is sent to the injection hole 14 through the injection main flow hole 16 and injected, the molten material enters the bottle blank forming cavity 2 and is used for injection forming the bottle blank plastic part through the thin-wall bottle blank forming auxiliary cylinder 6, a plurality of PET thin-wall bottle blanks can be synchronously formed by matching with the bottle blank forming cavity 2, the forming precision and efficiency are higher, after the injection is finished, the cooling water is injected into the bottle blank cooling sleeve 9, the formed plastic part is cooled through the bottle blank cooling sleeve 9, the cooling speed is higher, the bottle blank cooling sleeve 9 can be replaced, the disassembly and the assembly are simple and convenient, the maintenance and use cost can be greatly reduced, and the practicability is higher,
the top of the thin-wall bottle blank forming auxiliary cylinder 6 is hemispherical, so that molten materials can conveniently slide from the top of the thin-wall bottle blank forming auxiliary cylinder 6, the molten material accumulation at the top of the thin-wall bottle blank forming auxiliary cylinder 6 is avoided, the bottom of the thin-wall bottle blank forming auxiliary cylinder 6 can be fixed through the clamping fit between the auxiliary cylinder fixing base 8 and the thin-wall bottle blank forming auxiliary cylinder 6, the integral stability is higher,
the alignment connecting plate 11 is used for fixing the bottom of the bottle blank cooling sleeve 9, so that the bottom of the bottle blank cooling sleeve 9 is prevented from being subjected to angle deviation in the cooling process, and the cooling accuracy is improved.
The sealed injection molding cylinder block 13 is used for sealing the top of the bottle blank cooling sleeve 9, so that cooling water is prevented from leaking from the top of the bottle blank cooling sleeve 9, the sealing performance is good, and molten materials can be injected from the injection molding hole 14.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the utility model.
Although the terms of the bottle preform molding plate 1, the bottle preform molding cavity 2, the thin-wall molding auxiliary component 3, the replaceable cooling fitting 4, the injection molding part 5, the thin-wall bottle preform molding auxiliary cylinder 6, the molding cylinder fixing part 7, the auxiliary cylinder fixing base 8, the bottle preform cooling sleeve 9, the alignment connecting part 10, the alignment connecting plate 11, the top sealing part 12, the sealing injection cylinder block 13, the injection molding hole 14, the injection molding main plate 15, the injection molding main flow hole 16, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
Claims (10)
1. The utility model provides a thin wall PET bottle embryo injection moulding mould for food package, includes bottle embryo shaping template (1), its characterized in that, bottle embryo shaping template (1) in be equipped with a plurality of bottle embryo shaping chambeies (2) along bottle embryo shaping template (1) central line symmetry, bottle embryo shaping chamber (2) in be equipped with thin wall shaping auxiliary assembly (3) and interchangeable formula cooling accessory (4), interchangeable formula cooling accessory (4) match with the shape of thin wall shaping auxiliary assembly (3) and fit, bottle embryo shaping template (1) top be equipped with injection molding (5), injection molding (5) and the position of bottle embryo shaping chamber (2) corresponding.
2. The thin-wall PET bottle blank injection molding mold for food packaging as claimed in claim 1, wherein the thin-wall forming auxiliary component (3) comprises a thin-wall bottle blank forming auxiliary cylinder (6) arranged in the bottle blank forming cavity (2), the thin-wall bottle blank forming auxiliary cylinder (6) penetrates through the bottle blank forming cavity (2), and the thin-wall bottle blank forming auxiliary cylinder (6) corresponds to the replaceable cooling accessory (4).
3. The thin-wall PET bottle blank injection molding mold for food packaging as claimed in claim 2, wherein the top of the thin-wall bottle blank forming auxiliary cylinder (6) is hemispherical, the bottom of the bottle blank forming template (1) is provided with a forming cylinder fixing part (7), the forming cylinder fixing part (7) is in clamping fit with the thin-wall bottle blank forming auxiliary cylinder (6), and the forming cylinder fixing part (7) is located under the bottle blank forming cavity (2).
4. The thin-walled PET bottle preform injection molding mold for food packaging as claimed in claim 3, wherein the forming cylinder fixing member (7) comprises an auxiliary cylinder fixing base (8) arranged at the bottom of the bottle preform forming template (1), the auxiliary cylinder fixing base (8) is in clamping fit with the thin-walled bottle preform forming auxiliary cylinder (6), and the auxiliary cylinder fixing base (8) is located right below the bottle preform forming cavity (2).
5. The thin-walled PET bottle preform injection molding mold for food packaging as claimed in claim 4, wherein the replaceable cooling component (4) comprises a bottle preform cooling sleeve (9) disposed in the bottle preform forming cavity (2), the bottle preform cooling sleeve (9) corresponds to the thin-walled bottle preform forming auxiliary cylinder (6) in position and shape, and the cross-sectional area of the bottle preform cooling sleeve (9) is larger than the cross-sectional area of the thin-walled bottle preform forming auxiliary cylinder (6).
6. The injection molding mold for the thin-wall PET bottle blank for food packaging according to claim 5, wherein the bottom of the bottle blank cooling sleeve (9) is provided with an alignment connecting piece (10), the alignment connecting piece (10) is positioned right above the auxiliary cylinder fixing base (8), and the alignment connecting piece (10) is in clamping fit with the auxiliary cylinder fixing base (8).
7. The injection mold of the thin-wall PET bottle blank for food packaging as claimed in claim 6, wherein the alignment connecting piece (10) comprises an alignment connecting plate (11) arranged at the bottom of the bottle blank cooling sleeve (9), and the alignment connecting plate (11) is in clamping fit with the auxiliary cylinder fixing base (8).
8. The thin-walled PET bottle preform injection molding mold for food packaging as claimed in claim 7, wherein the top of the bottle preform cooling sleeve (9) is provided with a top sealing part (12), and the top sealing part (12) is in abutting fit with the bottle preform molding cavity (2).
9. The injection mold for the thin-wall PET bottle blank for food packaging as claimed in claim 8, wherein the top sealing part (12) comprises a sealing injection cylinder block (13) arranged at the top of the bottle blank cooling sleeve (9), the sealing injection cylinder block (13) is in butt fit with the bottle blank forming cavity (2), and an injection hole (14) is arranged in the sealing injection cylinder block (13).
10. The injection molding mold of the thin-wall PET bottle blank for food packaging according to claim 9, wherein the injection molding part (5) comprises an injection main plate (15) arranged above the bottle blank molding template (1), and the injection main plate (15) is internally provided with an injection main flow hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122980855.3U CN216544445U (en) | 2021-11-29 | 2021-11-29 | Thin-wall PET bottle blank injection molding mold for food packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122980855.3U CN216544445U (en) | 2021-11-29 | 2021-11-29 | Thin-wall PET bottle blank injection molding mold for food packaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216544445U true CN216544445U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122980855.3U Active CN216544445U (en) | 2021-11-29 | 2021-11-29 | Thin-wall PET bottle blank injection molding mold for food packaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216544445U (en) |
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2021
- 2021-11-29 CN CN202122980855.3U patent/CN216544445U/en active Active
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Thin-walled PET bottle embryo injection molding mold for food packaging Effective date of registration: 20230129 Granted publication date: 20220517 Pledgee: Bank of Ningbo Co.,Ltd. Taizhou Branch Pledgor: Taizhou Huangyan FengHao Plastic Co.,Ltd. Registration number: Y2023330000250 |