CN208697891U - Injection-moulded plastic mold - Google Patents
Injection-moulded plastic mold Download PDFInfo
- Publication number
- CN208697891U CN208697891U CN201820661652.3U CN201820661652U CN208697891U CN 208697891 U CN208697891 U CN 208697891U CN 201820661652 U CN201820661652 U CN 201820661652U CN 208697891 U CN208697891 U CN 208697891U
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- CN
- China
- Prior art keywords
- cover half
- dynamic model
- injection
- moulded plastic
- plastic mold
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Abstract
The utility model discloses a kind of injection-moulded plastic molds, including cover half, dynamic model, injecting hole, gas vent, electromagnetic preheating device；The center of cover half is equipped with cylindrical projections, and the center of dynamic model is equipped with cylindrical depression, and recess diameter is greater than the diameter of protrusion, forming cavity is formed between cover half and dynamic model；Dynamic model is equipped with gas vent far from the position of cover half, and cover half is equipped with injecting hole far from the position of dynamic model, and the bottom of dynamic model is equipped with electromagnetic preheating device, and electromagnetic preheating device includes electromagnetic coil and switch controlling device, and the control terminal of switch controlling device is connect with electromagnetic coil.The utility model realizes the preheating to metal die, when avoiding injection molding, the plastics pre-cooling of hot melt is hardened in advance, influences model forming effect by the way that the electromagnetic preheating device for having electromagnetic coil is arranged in the bottom of cover half.
Description
Technical field
The utility model relates to technical field of mold, in particular to a kind of injection-moulded plastic mold.
Background technique
Injection mold is to be injection moulded in thermoplastic plastic parts production using a kind of molding die the most universal
When dynamic model and cover half closure constitute running gate system and type chamber, dynamic model and cover half separation are to take out plastic products when die sinking.It is existing
In technology, then general plastics melted by heating first in the heating cylinder of injector bottom is pushed in the screw rod of injector or plunger
Under, the running gate system through nozzle of injector and mold enters mold cavity, plastics hardening by cooling molding, and demoulding obtains product.But
It is.Using existing technology, when as lower such as the temperature of mold, the plastics of hot melt are easy hardening, but in existing technology, to mold
It is more inconvenient to be preheated, and efficiency is lower.
Utility model content
The technical problems to be solved in the utility model be how to provide it is a kind of can efficient preheated mold injection-moulded plastic mold.
In order to solve the above-mentioned technical problem, the technical solution of the utility model are as follows:
A kind of injection-moulded plastic mold, including cover half, dynamic model, injecting hole, gas vent, electromagnetic preheating device；The cover half
Center is equipped with cylindrical projections, and the center of the dynamic model is equipped with cylindrical depression, and the recess diameter is greater than described
The diameter of protrusion is formed with forming cavity between the cover half and the dynamic model；The dynamic model is equipped with far from the position of the cover half
Gas vent, the cover half are equipped with injecting hole far from the position of the dynamic model, and the bottom of the dynamic model is equipped with electromagnetic preheating device, institute
Stating electromagnetic preheating device includes electromagnetic coil and switch controlling device, the control terminal of the switch controlling device and the electromagnetic wire
Circle connection.Preferably: the cover half and the dynamic model are made of structural carbon steel.
Preferably: the cover half and the dynamic model are made of carbon tool steel or alloy tool steel.
Preferably: the injecting hole on the cover half is equipped with check valve.
Preferably: the gas vent on the dynamic model is equipped with check valve.
Preferably: the injecting hole is equipped with filter screen.
Preferably: the cover half is embedded with heating sheet made of an iron material.
Preferably: the cover half is equipped with locating slot, and the dynamic model is equipped with corresponding positioning protrusion block.
By adopting the above technical scheme, by cover half, dynamic model, injecting hole, gas vent, electromagnetic preheating device, to form one kind
Injection-moulded plastic mold.By the way that an electromagnetic preheating device is arranged in the bottom of cover half, and injecting hole is started on cover half again, is made
The cover half of metal and dynamic model are carried out electromagnetism preheating by electromagnetic preheating device by the used time, and when avoiding injection molding, the plastics of hot melt are pre-
It is cold to be hardened in advance, influence model forming effect.The pre- thermal efficiency of the technical program is higher, pre-heat effect is preferable, can effectively mention
The quality and cost of high plastic products.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the utility model injection-moulded plastic mold.
In figure, 100- cover half, 200- dynamic model, 300- injecting hole, 400- gas vent, 500- electromagnetic preheating device, 510- electricity
Magnetic coil, 600- forming cavity, 700- positioning protrusion block.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that
The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This
Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
Technical solutions of the utility model propose a kind of injection-moulded plastic mold, including cover half 100, dynamic model 200, injecting hole 300,
Gas vent 400, electromagnetic preheating device 500；The center of cover half 100 is equipped with cylindrical projections, and the centre bit of dynamic model 200 installs
There is cylindrical depression, recess diameter is greater than the diameter of protrusion, forming cavity 600 is formed between cover half 100 and dynamic model 200；Dynamic model
200 positions far from cover half 100 are equipped with gas vent 400, and cover half 100 is equipped with injecting hole 300, dynamic model far from the position of dynamic model 200
200 bottom is equipped with electromagnetic preheating device 500, and electromagnetic preheating device 500 includes electromagnetic coil 510 and switch controlled device,
The control terminal of switch controlling device is connect with electromagnetic coil 510.
By adopting the above technical scheme, pass through cover half 100, dynamic model 200, injecting hole 300, gas vent 400, electromagnetic preheating device
500, to form a kind of injection-moulded plastic mold.By the way that an electromagnetic preheating device 500 is arranged in the bottom of cover half 100, and will note
Mole 300 starts again on cover half 100, when in use, by electromagnetic preheating device 500 by the cover half 100 and dynamic model 200 of metal
Electromagnetism preheating is carried out, when avoiding injection molding, the plastics pre-cooling of hot melt is hardened in advance, influences model forming effect.The technical program
The pre- thermal efficiency is higher, pre-heat effect is preferable, can effectively improve the quality and cost of plastic products.
It should be noted that electromagnetic heater is a kind of device for converting electrical energy into thermal energy using electromagnetic induction principle.
The rectified circuit rectifies of alternating current are become into direct current, direct current is converted into the voltage of different frequency using control circuit,
Electric current, which flows through coil, can generate the alternating magnetic field of variation, can be when the alternate magnetic force line in magnetic field passes through magnetic conductive metal material
Countless small vortex is generated in metallic object, making metal material itself, voluntarily high speed is generated heat, to reach the mesh of heating metal material
's.
Specifically: cover half 100 and dynamic model 200 are made of structural carbon steel, carbon tool steel or alloy tool steel.
Specifically: the injecting hole 300 on cover half 100 is equipped with check valve.Gas vent 400 on dynamic model 200 is equipped with check valve.
Injecting hole 300 is equipped with filter screen.
It should be noted that by the setting of check valve can to avoid hot melt plastics from gas vent 400 or injecting hole 300
Outflow.And filter screen can filter out fixed impurity.
Specifically: cover half 100 is equipped with locating slot, and dynamic model 200 is equipped with corresponding positioning protrusion block 700.In stator
Embedded with heating sheet made of an iron material.
It should be noted that by locating slot and positioning protrusion block 700, mutual cooperation, realize the cover half of dynamic model 200
100 positioning avoids the inaccurate caused forming errors of positioning, influences product quality.
Technical solutions of the utility model pass through, the electromagnetic preheating device 500 equipped with electromagnetic coil 510, to the cover half of metal
100, dynamic model 200, or the heating sheet inlayed, are heated.The plastics of hot melt are infused by the injecting hole 300 with check valve
Enter into the forming cavity 600 of preheating, gas, which then passes through, drives the gas vent 400 of check valve to be exhausted.It is simple and efficient, Cheng Pinzhi
It measures good.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.
Claims (8)
1. a kind of injection-moulded plastic mold, it is characterised in that: including cover half, dynamic model, injecting hole, gas vent, electromagnetic preheating device；Institute
The center for stating cover half is equipped with cylindrical projections, and the center of the dynamic model is equipped with cylindrical depression, the recess diameter
Greater than the diameter of the protrusion, forming cavity is formed between the cover half and the dynamic model；The dynamic model is far from the cover half
Position is equipped with gas vent, and the cover half is equipped with injecting hole far from the position of the dynamic model, and it is pre- that the bottom of the dynamic model is equipped with electromagnetism
Thermal, the electromagnetic preheating device include electromagnetic coil and switch controlling device, the control terminal of the switch controlling device with
The electromagnetic coil connection.
2. injection-moulded plastic mold according to claim 1, it is characterised in that: the cover half and the dynamic model are by carbon structure
Steel is made.
3. injection-moulded plastic mold according to claim 1, it is characterised in that: the cover half and the dynamic model are by carbon, C
Steel or alloy tool steel are made.
4. injection-moulded plastic mold according to claim 1, it is characterised in that: the injecting hole on the cover half is equipped with single
To valve.
5. injection-moulded plastic mold according to claim 4, it is characterised in that: the gas vent on the dynamic model is equipped with single
To valve.
6. injection-moulded plastic mold according to claim 1, it is characterised in that: the injecting hole is equipped with filter screen.
7. injection-moulded plastic mold according to claim 1, it is characterised in that: the cover half is equipped with locating slot, described dynamic
Mould is equipped with corresponding positioning protrusion block.
8. injection-moulded plastic mold according to claim 1, it is characterised in that: the cover half is embedded with made of an iron material
Heating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820661652.3U CN208697891U (en) | 2018-05-05 | 2018-05-05 | Injection-moulded plastic mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820661652.3U CN208697891U (en) | 2018-05-05 | 2018-05-05 | Injection-moulded plastic mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208697891U true CN208697891U (en) | 2019-04-05 |
Family
ID=65935137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820661652.3U Active CN208697891U (en) | 2018-05-05 | 2018-05-05 | Injection-moulded plastic mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208697891U (en) |
-
2018
- 2018-05-05 CN CN201820661652.3U patent/CN208697891U/en active Active
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