CN220129388U - Highlight does not have trace plastic bicolor mould - Google Patents
Highlight does not have trace plastic bicolor mould Download PDFInfo
- Publication number
- CN220129388U CN220129388U CN202321649675.XU CN202321649675U CN220129388U CN 220129388 U CN220129388 U CN 220129388U CN 202321649675 U CN202321649675 U CN 202321649675U CN 220129388 U CN220129388 U CN 220129388U
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- runner
- soft
- plastic
- plastic molding
- hot nozzle
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- 238000010137 moulding (plastic) Methods 0.000 claims abstract description 38
- 238000000465 moulding Methods 0.000 claims abstract description 32
- 238000007493 shaping process Methods 0.000 claims description 15
- 238000005266 casting Methods 0.000 claims description 6
- 210000002615 epidermis Anatomy 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 2
- 230000007547 defect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 description 13
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 210000003491 skin Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a highlight traceless plastic double-color mold, which also comprises a hard plastic pouring system communicated with a hard plastic molding cavity and a soft plastic pouring system communicated with the soft plastic molding cavity, wherein the hard plastic pouring system comprises a first hot nozzle, a first runner communicated with the first hot nozzle, and a fan-shaped runner communicated with the first runner and the hard plastic molding cavity, the first runner consists of a U-shaped runner and an oblique extension runner, the soft plastic pouring system comprises a second hot nozzle, a second runner communicated with the second hot nozzle and a conical runner communicated with the second runner and the soft plastic molding cavity, and the second runner is a flat runner; the method has the advantages of solving the problems of bad defects such as speckles, air holes, blushing, halation, black spots and the like which often occur on the surface of the highlight product during molding, and improving the qualification rate of the product.
Description
Technical Field
The utility model relates to the technical field of injection molding, in particular to a highlight traceless plastic double-color mold.
Background
Most of plastic products are injection molded by injection molds, and plastic products with required shapes can be efficiently molded by the injection molds, so that the development pace of the injection molds is accelerated. The double-shot molding is a process method for manufacturing two plastic particles with different colors or different types into finished products with different colors or different external hardness through an injection molding process. When the double-color mold is used for injection molding, the movable mold is clamped with the first-time molding fixed mold, then the movable mold rotates 180 degrees with the one-time molding product and is clamped with the second-time molding fixed mold, the mold is opened after cooling, and the two-time molding product is ejected out to finish double-color injection molding.
The requirements of people on attractive appearance and product precision of plastic products are continuously improved, for example, a plurality of household electrical appliance plastic products are required to reach the standard of high gloss traceless, so that the high gloss traceless plastic bicolor mould is an advanced injection moulding mould at present, the surface of the injection moulded product has no bad defects, and the injection moulded product can be directly used for product assembly without secondary surface processing. However, in actual production, even if measures such as adding a heat insulation plate on one side of a fixed die, exhausting a parting surface, heating the die during molding and the like are adopted, ideal effects are often not achieved, and defects such as speckles, air holes, blushing, halation, black spots and the like are often generated on the surface of a product with extremely high quality requirements, and are extremely difficult to eliminate, so that the product is scrapped.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the highlight traceless plastic double-color die, which solves the problems of bad defects such as speckles, air holes, blushing, halation, black spots and the like on the surface of a highlight product during molding, and improves the qualification rate of the product.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a highlight does not have dual-color plastic mould of trace, includes the hard shaping cover half benevolence of fixing on the cover half fixed plate, soft shaping cover half benevolence and two the same movable mould benevolence of fixing on the movable mould fixed plate, the die cavity of hard shaping cover half benevolence with the core of movable mould benevolence constitutes the hard shaping die cavity that is used for shaping hard plastic body jointly, the soft shaping die cavity that forms jointly with the core of movable mould benevolence is used for shaping soft plastic epidermis, still include with the hard molding pouring system that the hard molding cavity is linked together and with soft molding pouring system that the soft molding cavity is linked together, hard molding pouring system include first hot mouth, with the first runner that the first hot mouth is linked together, with first runner with the fan-shaped runner that the hard molding cavity is linked together, first runner comprises U type runner and slant extension runner, soft molding pouring system includes the second hot mouth, with the second runner that the second hot pouring mouth is linked together with soft runner and the soft runner that the soft molding cavity is linked together is the taper runner setting that the second runner is linked together.
Further, the first hot nozzle penetrates into the hard plastic molding fixed die core and is communicated with the first flow passage, the first flow passage is arranged between two opposite surfaces of the hard plastic molding fixed die core and the movable die core, a complete first flow passage is formed together during die assembly, the fan-shaped pouring gate is arranged on the movable die core and is respectively communicated with the first flow passage and the core of the movable die core, the second hot nozzle penetrates into the soft plastic molding fixed die core and is communicated with the second flow passage, the second flow passage is arranged between two opposite surfaces of the soft plastic molding fixed die core and the movable die core, a complete second flow passage is formed together during die assembly, and the conical pouring gate is arranged on the soft plastic molding fixed die core and is respectively communicated with the second flow passage and the cavity of the soft plastic molding fixed die core, and a first flow passage accommodating cavity which is matched with the first flow passage in shape is also arranged on the soft plastic molding fixed die core.
Further, the first hot nozzle is a point type hot nozzle, and the second hot nozzle is a through nozzle type hot nozzle.
Compared with the prior art, the utility model has the advantages that the hard plastic pouring system and the soft plastic pouring system which are mutually independent are arranged, and the proper hot nozzle type, the runner shape and the pouring gate are arranged, so that the problems of bad defects such as speckles, air holes, blushing, halation, black spots and the like on the surface of a highlight product during the molding of a double-color product are solved, and the qualification rate of the product is improved.
Drawings
FIG. 1 is a schematic view of the structure of a finished product of the injection molding of the present utility model;
FIG. 2 is a schematic assembly view of a stationary platen and two stationary mold cores of the present utility model;
FIG. 3 is a schematic view of a hard plastic molding mold insert of the present utility model;
FIG. 4 is a schematic view of a soft plastic molding cavity insert of the present utility model.
FIG. 5 is a schematic diagram showing the assembly of a movable mold fixing plate and two movable mold cores according to the present utility model;
FIG. 6 is a schematic view of a movable mold insert according to the present utility model;
FIG. 7 is a schematic diagram of injection molding states of the hard plastic casting system and the soft plastic casting system (after removing the mold core) according to the present utility model;
in the figure: 1. a fixed die fixing plate; 2. hard molding the fixed mold core; 3. soft plastic forming the fixed mould core; 4. a movable mold fixing plate; 5. a movable mold core; 6. a hard plastic pouring system; 7. a soft plastic pouring system; 8. a first hot nozzle; 9. a first flow passage; 91. a U-shaped runner; 92. extending the flow passage obliquely; 10. a fan gate; 11. a second hot nozzle; 12. a second flow passage; 13. a conical gate; 14. a product; 15. a hard plastic body; 16. soft plastic skin; 17. a hot runner system; 18. the first flow path accommodates the chamber.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1, the bicolor small cover plate product 14 which can be processed by the bicolor injection mold of the utility model is composed of a hard plastic body 15 and a soft plastic surface 16, fine laser carving patterns are arranged on the surface of the hard plastic body 15, the soft plastic surface 16 which is transparent to high light is covered on the laser carving patterns, the hard plastic body 15 is injection molded firstly during injection molding, and then the soft plastic surface 16 is injection molded, and the product requires high light on the molding surface without bad defects.
As shown in fig. 2-7, a highlight traceless plastic double-color mold comprises a hard plastic pouring system 6 and a soft plastic pouring system 7 which are mutually independent, wherein a hard plastic molding fixed die core 2 and a soft plastic molding fixed die core 3 are fixed on a fixed die fixing plate 1, two identical movable die cores 5 are fixed on a movable die fixing plate 4, a hard plastic cavity for forming a hard plastic body 15 for the first time is formed by a cavity of the hard plastic molding fixed die core 2 and a core of the movable die core 5, a soft plastic cavity for forming a soft plastic skin for the second time is formed by a cavity of the soft plastic molding fixed die core 3 and a core of the movable die core 5, and the hard plastic pouring system 6 and the soft plastic pouring system 7 are respectively communicated with the hard plastic cavity and the soft plastic cavity and respectively pour hard plastic fluid and soft plastic fluid.
As shown in fig. 3, 6 and 7, the hard plastic pouring system 6 includes a first hot nozzle 8, a first flow channel 9 and a fan gate 10 communicating the first flow channel 9 and the hard plastic cavity, wherein the first flow channel 9 is disposed between two opposite surfaces of the hard plastic molding fixed die core 2 and the movable die core 5, the first flow channel 9 is formed into a complete first flow channel 9 together during die assembly, the first hot nozzle 8 penetrates into the hard plastic molding fixed die core 2 to be communicated with the first flow channel 9, the fan gate 10 is disposed on the movable die core 5 and is respectively communicated with the first flow channel 9 and the core of the movable die core 5, the hard plastic material flows through the first flow channel 9 and the fan gate 10 after being injected through the first hot nozzle 8, the first hot nozzle 8 adopts a sharp point type hot nozzle, the sharp point type hot nozzle heats up quickly, the requirement on an ambient temperature window is wider, the hard plastic pouring system is suitable for molding of high-gloss materials (namely, the hard plastic body 15), the first flow channel 9 is formed by a U-shaped flow channel 91 and an oblique extension 92, the defect of the appearance of a product is avoided, the end of the U-shaped flow channel 91 has a hole of about 5mm, the hard plastic material flows through the first flow channel 9 and the fan gate 10 and the hard plastic cavity is also reduced, the deformation effect of the hard plastic material can be gradually reduced, the hard plastic material flows into the hard plastic cavity after flowing through the fan gate 10, and the hard plastic cavity is stable, and the impact effect of the hard plastic cavity is reduced, and the hard plastic material is stable, and the impact force is reduced, and the impact stress flow and the impact force of the hard plastic cavity is reduced.
As shown in fig. 4, 6 and 7, the soft plastic pouring system 7 comprises a second hot nozzle 11, a second flow channel 12 and a conical gate 13 communicated with the second flow channel 12 and a soft plastic cavity, wherein the second flow channel 12 is arranged between two opposite surfaces of the soft plastic molding fixed die core 3 and the movable die core 5, the second flow channel 12 is formed together during die assembly, the second hot nozzle 11 penetrates into the soft plastic molding fixed die core 3 and is communicated with the second flow channel 12, the conical gate 13 is formed on the soft plastic molding fixed die core 3 and is respectively communicated with the second flow channel 12 and a cavity of the soft plastic molding fixed die core 3, a second flow channel accommodating cavity 18 matched with the first flow channel 9 in shape is formed on the soft plastic molding fixed die core 3, after the hard plastic body 15 is subjected to injection molding, the hard plastic waste in the second flow channel 9 and the fan-shaped gate 10 can be accurately positioned in the second flow channel accommodating cavity 18 after the hard plastic body 15 rotates by 180 degrees, the soft plastic die core 3 and the movable die core 5 can be tightly clamped, then the soft plastic surface skin is subjected to soft plastic injection molding through the second flow channel 12, and the second flow channel 12 is formed through the second flow channel 12, and the flat hot plastic channel is arranged after the soft plastic pouring is subjected to the soft plastic flow channel 11, and the soft plastic flow channel is subjected to high shear force is reduced, and the soft plastic flow channel 11 can be subjected to the soft plastic injection is arranged through the second flow channel through the soft plastic nozzle 11, and the soft plastic nozzle is provided.
In the present embodiment, the first hot nozzle 8 and the second hot nozzle 11 communicate with a hot runner system 17 provided in the injection mold system itself.
The working principle of the utility model is as follows: after the movable mold core 5 and the hard molding fixed mold core 2 are subjected to primary mold closing, hard molding fluid enters into a hard molding cavity through a first hot nozzle 8, flows through a first flow channel 9 and a fan-shaped gate 10, injection molding of a hard molding body of a product is completed, then the movable mold fixing plate 4 rotates 180 degrees with the movable mold core 5 with the hard molding body in an injection molding manner, the movable mold core 5 and the soft molding fixed mold core 3 are subjected to mold closing again, soft molding fluid enters into a soft molding cavity through a second hot nozzle 11, flows through a second flow channel 12 and a conical gate 13, injection molding of a soft molding surface skin of the product is completed, then mold opening is performed, ejection and demolding are performed by an ejection mechanism, and double-color molding of the product is completed.
The scope of the present utility model includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the utility model.
Claims (3)
1. The utility model provides a highlight does not have dual-color plastic mould, includes the hard shaping cover half benevolence of fixing on the cover half fixed plate, soft shaping cover half benevolence and two the same movable mould benevolence of fixing on the movable mould fixed plate, the die cavity of hard shaping cover half benevolence with the core of movable mould benevolence constitutes the hard shaping die cavity that is used for shaping hard moulding body jointly, the die cavity of soft shaping cover half benevolence with the core of movable mould benevolence constitutes the soft shaping die cavity that is used for shaping soft moulding epidermis jointly, its characterized in that: the plastic molding device comprises a plastic molding cavity, a hard plastic casting system and a soft plastic casting system, wherein the plastic molding cavity is communicated with the plastic molding cavity, the plastic molding casting system comprises a first hot nozzle, a first runner communicated with the first hot nozzle, a fan-shaped runner communicated with the first runner and the plastic molding cavity, the first runner consists of a U-shaped runner and an inclined extension runner, the soft plastic casting system comprises a second hot nozzle, a second runner communicated with the second hot nozzle, and a conical runner communicated with the second runner and the plastic molding cavity, and the second runner is a straight runner.
2. A highlight traceless plastic dual color mold as set forth in claim 1, wherein: the first hot nozzle penetrates into the hard plastic molding fixed die core and is communicated with the first flow passage, the first flow passage is arranged between two opposite surfaces of the hard plastic molding fixed die core and the movable die core, the first flow passage is formed together during die assembly, the fan-shaped pouring gate is arranged on the movable die core and is respectively communicated with the first flow passage and the core of the movable die core, the second hot nozzle penetrates into the soft plastic molding fixed die core and is communicated with the second flow passage, the second flow passage is arranged between the two opposite surfaces of the soft plastic molding fixed die core and the movable die core, the second flow passage is formed together during die assembly, the conical pouring gate is arranged on the soft plastic molding fixed die core and is respectively communicated with the second flow passage and the cavity of the soft plastic molding fixed die core, and the soft plastic molding fixed die core is also provided with a first flow passage accommodating cavity which is matched with the first flow passage in shape.
3. A highlight traceless plastic dual color mold as set forth in claim 1, wherein: the first hot nozzle is a point type hot nozzle, and the second hot nozzle is a through nozzle type hot nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321649675.XU CN220129388U (en) | 2023-06-26 | 2023-06-26 | Highlight does not have trace plastic bicolor mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321649675.XU CN220129388U (en) | 2023-06-26 | 2023-06-26 | Highlight does not have trace plastic bicolor mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220129388U true CN220129388U (en) | 2023-12-05 |
Family
ID=88956922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321649675.XU Active CN220129388U (en) | 2023-06-26 | 2023-06-26 | Highlight does not have trace plastic bicolor mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220129388U (en) |
-
2023
- 2023-06-26 CN CN202321649675.XU patent/CN220129388U/en active Active
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