CN220638738U - Plastic bottle injection mold - Google Patents
Plastic bottle injection mold Download PDFInfo
- Publication number
- CN220638738U CN220638738U CN202321630914.7U CN202321630914U CN220638738U CN 220638738 U CN220638738 U CN 220638738U CN 202321630914 U CN202321630914 U CN 202321630914U CN 220638738 U CN220638738 U CN 220638738U
- Authority
- CN
- China
- Prior art keywords
- heat preservation
- mold
- edge
- plastic bottle
- mould
- 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.)
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- 239000004033 plastic Substances 0.000 title claims abstract description 26
- 229920003023 plastic Polymers 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 title claims abstract description 22
- 239000007924 injection Substances 0.000 title claims abstract description 22
- 238000004321 preservation Methods 0.000 claims abstract description 37
- 238000001746 injection moulding Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000000071 blow moulding Methods 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000002991 molded plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a plastic bottle injection mold, which relates to the technical field of injection molds and comprises a fixed shell, two edge molds and a central mold, wherein the two edge molds and the central mold are arranged in the fixed shell, a moving part for driving the two edge molds to approach or separate from the central mold is arranged in the fixed shell, a first heat preservation cavity is arranged in the edge mold, a second heat preservation cavity is arranged in the central mold, liquid for heat preservation is arranged in the first heat preservation cavity and the second heat preservation cavity, the moving part comprises a hydraulic telescopic rod fixedly connected in the fixed shell, the hydraulic telescopic rod is fixedly connected with the edge molds, and a mold groove for injection molding is formed in a split state of the two edge molds and the central mold; the utility model can control the temperature of the internal injection molding bottle blank through the internal liquid after injection molding, ensure relative constant temperature, provide convenience for the subsequent bottle blank blow molding process, ensure that the temperature of all parts of the bottle blank is the same, and reduce the problem of uneven thickness.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a plastic bottle injection mold.
Background
The production process of the plastic bottle generally comprises two steps: the first step is injection molding process, namely, adding plastic raw materials into an injection molding machine, heating, melting, plasticizing and extruding a molten parison, and maintaining the temperature state in the parison to avoid complete cooling; and in the second step, the blow molding process is carried out, the molten parison is put into a mold of a plastic bottle for blow molding, cooling and shaping are carried out after the blow molding is finished, the parison is taken out from the mold, and the slitter edge is trimmed to obtain a finished product.
The patent of the publication No. CN219076397U proposes an injection molding machine which can automatically perform injection molding and then heat dissipation by using a heat dissipation fan and demolding treatment, but in the injection molding process of a plastic bottle, a molded parison needs to maintain a certain temperature to facilitate the next blow molding, and the cooling treatment by using the heat dissipation fan can possibly produce different influences on the temperature of the inner wall and the outer wall of the plastic bottle parison, so that the internal temperature is uneven, and the inner wall of the plastic bottle in the next blow molding process is uneven in thickness.
Disclosure of Invention
In order to solve at least one technical problem mentioned in the background art, the utility model aims to provide a plastic bottle injection mold which ensures uniform heat dissipation of the inner wall and the outer wall of a plastic bottle blank and reduces the occurrence of uneven thickness of the plastic bottle during blow molding.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the plastic bottle injection mold comprises a fixed shell, two edge molds and a center mold, wherein the two edge molds and the center mold are arranged in the fixed shell, and a moving part for driving the two edge molds to approach or separate from the center mold is arranged in the fixed shell;
the edge mold is internally provided with a first heat preservation cavity, the center mold is internally provided with a second heat preservation cavity, and the first heat preservation cavity and the second heat preservation cavity are filled with heat preservation liquid.
Further, the moving part comprises a hydraulic telescopic rod fixedly connected in the fixed shell, and the hydraulic telescopic rod is fixedly connected with the edge die.
Further, a mold groove for injection molding is formed in a split state of the two edge molds and the center mold.
Further, an injection pipe for injecting plastics into the mold groove is arranged in the central mold.
Further, a demoulding push block used for pushing out the molded plastic blank is connected in a sliding mode in the mould groove, a screw rod is connected in a rotating mode in the fixed shell, and the screw rod is in threaded connection with the demoulding push block.
Further, a hot water tank is arranged on the fixed shell, the hot water tank is communicated with the first heat preservation cavity through a first heat preservation pipe, and the hot water tank is communicated with the second heat preservation cavity through a second heat preservation pipe.
Further, a water pump for driving the first heat preservation pipe and the second heat preservation pipe to pump water is arranged in the fixed shell.
Compared with the prior art, the utility model has the beneficial effects that: the utility model can control the temperature of the internal injection molding bottle blank through the internal liquid after injection molding, ensure relative constant temperature, provide convenience for the subsequent bottle blank blow molding process, ensure that the temperature of all parts of the bottle blank is the same, and reduce the problem of uneven thickness.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a stationary housing structure according to the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model;
in the figure: 11. a fixed housing; 12. an edge mold; 13. a hydraulic telescopic rod; 14. a mold groove; 15. a center die; 16. demolding pushing blocks; 17. a screw rod; 18. injection molding a tube; 19. a first heat-preserving tube; 20. a second insulating tube; 21. a hot water tank; 22. a moving member; 23. a first thermal insulation chamber; 24. and a second heat preservation cavity.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, the present embodiment provides an injection mold for plastic bottles, which includes a fixed housing 11, two edge molds 12 installed in the fixed housing 11, and a center mold 15, wherein a moving member 22 driving the two edge molds 12 to approach or separate from the center mold 15 is disposed in the fixed housing 11;
the moving part 22 comprises a hydraulic telescopic rod 13 fixedly connected in the fixed shell 11, and the hydraulic telescopic rod 13 is fixedly connected with the edge die 12;
forming a mold groove 14 for injection molding in a state that the two edge molds 12 and the center mold 15 are spliced;
an injection pipe 18 for injecting into the mold groove 14 is arranged in the central mold 15;
the mold groove 14 is slidably connected with a demolding push block 16 for pushing out a molded plastic blank, the fixed shell 11 is rotatably connected with a lead screw 17, and the lead screw 17 is in threaded connection with the demolding push block 16.
When injection molding is prepared, the edge molds 12 on two sides are spliced with the center mold 15 through the hydraulic telescopic rod 13, molten plastic is injected into the mold groove 14 through the injection molding pipe 18, and then when the temperature is stable, the screw rod 17 drives the demolding push block 16 to push out a solidified plastic blank;
the grooves in the location of the ejector pad 16 may be used for venting before ejection is performed.
Referring to fig. 1 and 3, a first heat-preserving cavity 23 is provided in the edge mold 12, a second heat-preserving cavity 24 is provided in the center mold 15, and liquid for heat preservation is provided in the first heat-preserving cavity 23 and the second heat-preserving cavity 24;
the fixed shell 11 is provided with a hot water tank 21, the hot water tank 21 is communicated with the first heat preservation cavity 23 through a first heat preservation pipe 19, and the hot water tank 21 is communicated with the second heat preservation cavity 24 through a second heat preservation pipe 20;
the fixed shell 11 is internally provided with a water pump for driving the first heat preservation pipe 19 and the second heat preservation pipe 20 to pump water.
Constant-temperature water can be continuously pumped into the first heat preservation cavity 23 and the second heat preservation cavity 24 through the hot water tank 21 by the water pump, so that the water temperature in the injection mold can be always kept constant, and the temperature of the injection mold can be controlled.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. Plastic bottle injection mold, including fixed casing (11), install in two edge mould (12) and a center mould (15) in fixed casing (11), its characterized in that: a moving part (22) for driving the two edge molds (12) to approach or separate from the central mold (15) is arranged in the fixed shell (11);
the edge mold (12) is internally provided with a first heat preservation cavity (23), the center mold (15) is internally provided with a second heat preservation cavity (24), and the first heat preservation cavity (23) and the second heat preservation cavity (24) are internally provided with liquid for heat preservation.
2. A plastic bottle injection mould according to claim 1, characterized in that the moving part (22) comprises a hydraulic telescopic rod (13) fixedly connected in the fixed housing (11), the hydraulic telescopic rod (13) being fixedly connected with the edge mould (12).
3. A plastic bottle injection mould according to claim 1, characterized in that the two edge moulds (12) and the central mould (15) form a mould groove (14) for injection moulding in a split state.
4. A plastic bottle injection mould according to claim 3, characterized in that an injection tube (18) is mounted in the central mould (15) for injection into the mould groove (14).
5. A plastic bottle injection mould according to claim 4, characterized in that a demoulding push block (16) for pushing out a formed plastic blank is connected in a sliding manner in the mould groove (14), a screw rod (17) is connected in a rotating manner in the fixed shell (11), and the screw rod (17) is connected with the demoulding push block (16) in a threaded manner.
6. A plastic bottle injection mould according to claim 1, characterized in that the fixed housing (11) is provided with a hot water tank (21), the hot water tank (21) is communicated with the first heat preservation cavity (23) through a first heat preservation pipe (19), and the hot water tank (21) is communicated with the second heat preservation cavity (24) through a second heat preservation pipe (20).
7. The plastic bottle injection mold according to claim 6, wherein a water pump for driving the first heat preservation pipe (19) and the second heat preservation pipe (20) to pump water is arranged in the fixed shell (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321630914.7U CN220638738U (en) | 2023-06-26 | 2023-06-26 | Plastic bottle injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321630914.7U CN220638738U (en) | 2023-06-26 | 2023-06-26 | Plastic bottle injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220638738U true CN220638738U (en) | 2024-03-22 |
Family
ID=90290418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321630914.7U Active CN220638738U (en) | 2023-06-26 | 2023-06-26 | Plastic bottle injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220638738U (en) |
-
2023
- 2023-06-26 CN CN202321630914.7U patent/CN220638738U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |