CN208645931U - Mould interior suction vacuum plant - Google Patents
Mould interior suction vacuum plant Download PDFInfo
- Publication number
- CN208645931U CN208645931U CN201821304837.5U CN201821304837U CN208645931U CN 208645931 U CN208645931 U CN 208645931U CN 201821304837 U CN201821304837 U CN 201821304837U CN 208645931 U CN208645931 U CN 208645931U
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- China
- Prior art keywords
- mold core
- template
- mold
- insert
- air
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- 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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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a kind of mould interior suction vacuum plants, belong to mould applications.Mold core is installed in the die cavity of template, the mold cavity bottoms of template are machined with hole countersunk template air discharge duct, mold core mold insert is installed in mold core, spiral mold core insert for air exhaust slot is machined on the lateral wall of mold core mold insert, the spiral mold core insert for air exhaust slot of mold core mold insert bottom is connected with template air discharge duct, template air discharge duct is connected with the template pumping air flue in template, and the forming cavity of mold core is connected with the spiral mold core insert for air exhaust slot on mold core mold insert top." active " is vented when the utility model is molded, first the air in mold cavity is sucked out first for vacuum pump, injection molding again, type intracavitary almost vacuum state when plastic cement fills, on the one hand the plastic cement of melting is injection molding machine and injects in die cavity, it on the other hand is then by inside vacuum " suction " progressive die chamber, product is more easily molded, and product quality is guaranteed.
Description
Technical field
The utility model relates to mould applications, are a kind of mould interior suction vacuum plant in detail.
Background technique
It is well known that plastic mould forming principle utilizes the extrudability and mouldability of plastics, by loose pellet or
The heating melting plasticizing out of the hopper of injector is sent into high temperature machine barrel of powdery molding materials, makes viscous state melt,
Under the pushed at high pressure of plunger or screw rod, the lower closure mould of temperature is entered by the nozzle injection of machine barrel front end with very big flow velocity
In tool, after one pressure maintaining cooling and shaping time, opening mold can be deviate from from die cavity with certain shapes and size
Plastic part.
It is injected in mold cavity when the plastic cement of melting is formed machine, plastic cement must be by the air " extruding " inside mold cavity
It goes out, by the position of melt plastic cement substitution air, could finally be cooled and shaped.Plastic mould type is intracavitary at this stage 0.02mm
Deep air discharge duct for mold molding exhaust, but mold by for a long time produce when, mould-cavity temperature can increase, and die steel has heat
Subtle expansion occurs for the physical characteristic of swollen shrinkage, die steel, and die venting slot gap reduces, the sky in die cavity in exiguous space
Gas is not easy to be discharged, and cannot fill completely so as to cause product, cause product bad.
Summary of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of mould interior suction vacuum plant, improves the life of mold
Efficiency is produced, reduction mold production is bad, forms auxiliary exhaust for plastic mould.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of mould interior suction vacuum plant, is equipped with mould
Plate, which is characterized in that mold core is equipped in the die cavity of template, the mold cavity bottoms of template are machined with hole countersunk template air discharge duct, mould
In-core is equipped with mold core mold insert, and spiral mold core insert for air exhaust slot, mold core mold insert bottom are machined on the lateral wall of mold core mold insert
Spiral mold core insert for air exhaust slot be connected with template air discharge duct, template air discharge duct and template in template are evacuated air flue phase
Even, the forming cavity of mold core is connected with the spiral mold core insert for air exhaust slot on mold core mold insert top.
The utility model has the beneficial effects that " active " is vented when injection molding, vacuum pump is first by the air in mold cavity
With suction, then injection molding, when plastic cement fills on the one hand the intracavitary almost vacuum state of type, the plastic cement of melting are injection molding machine and inject
It is on the other hand then by inside vacuum " suction " progressive die chamber, product is more easily molded, and product quality is guaranteed in die cavity.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model.
1. forming cavity in figure, 2. mold cores, 3. templates, 4. mold core mold inserts, 5. mold core insert for air exhaust slots, 6. template air discharge ducts,
7. template is evacuated air flue.
Specific embodiment
The utility model is equipped with template 3 in the figure, and the die cavity in template 3 is equipped with mold core 2, and the mold cavity bottoms of template 3 add
Work has hole countersunk template air discharge duct 6, and mold core mold insert 4 is equipped in mold core 2, is machined on the lateral wall of mold core mold insert 4 spiral
The spiral mold core insert for air exhaust slot 5 of mold core insert for air exhaust slot 5,4 bottom of mold core mold insert is connected with template air discharge duct 6, template
Air discharge duct 6 is connected with the template pumping air flue 7 in template 3, the forming cavity of mold core 2 and the spiral mold core on 4 top of mold core mold insert
Insert for air exhaust slot 5 is connected.When the utility model molds, to the vacuum-pump power supply signal for being connected to template pumping air flue 7, start
Air-breathing stops after controlling air-breathing 5s-10s by time controller, and mold injection is completed, and plastic cement products pressure maintaining inside mold is cold
But it is opened and takes out after final molding, mold molds starting vacuum pump again to carry out next circulation.
Claims (1)
1. a kind of mould interior suction vacuum plant is equipped with template, which is characterized in that be equipped with mold core, the mould of template in the die cavity of template
Bottom of chamber portion is machined with hole countersunk template air discharge duct, and mold core mold insert is equipped in mold core, is machined with spiral shell on the lateral wall of mold core mold insert
The spiral mold core insert for air exhaust slot of rotating mold core insert for air exhaust slot, mold core mold insert bottom is connected with template air discharge duct, template
Air discharge duct is connected with the template pumping air flue in template, and the forming cavity of mold core and the spiral mold core mold insert on mold core mold insert top are arranged
Air drain is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821304837.5U CN208645931U (en) | 2018-08-14 | 2018-08-14 | Mould interior suction vacuum plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821304837.5U CN208645931U (en) | 2018-08-14 | 2018-08-14 | Mould interior suction vacuum plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208645931U true CN208645931U (en) | 2019-03-26 |
Family
ID=65789451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821304837.5U Active CN208645931U (en) | 2018-08-14 | 2018-08-14 | Mould interior suction vacuum plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208645931U (en) |
-
2018
- 2018-08-14 CN CN201821304837.5U patent/CN208645931U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |