CN205735846U - A kind of three-plate type can process the pouring gate structure of plastic elbow mould - Google Patents
A kind of three-plate type can process the pouring gate structure of plastic elbow mould Download PDFInfo
- Publication number
- CN205735846U CN205735846U CN201620709741.1U CN201620709741U CN205735846U CN 205735846 U CN205735846 U CN 205735846U CN 201620709741 U CN201620709741 U CN 201620709741U CN 205735846 U CN205735846 U CN 205735846U
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- CN
- China
- Prior art keywords
- runner
- stripper
- sub
- sprue
- cavity plate
- 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.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
This utility model relates to mould of plastics field, the pouring gate structure of plastic elbow mould can be processed particularly to a kind of three-plate type, including impression bolster, stripper and cavity plate, it is provided with running gate system between described cavity plate and stripper and between stripper and impression bolster, between described stripper and cavity plate, symmetry is provided with four die cavities and four Angle Pin core-pulling mechanisms, described running gate system includes the rounded sub-runner of the tapered sprue in cross section and cross section, it is the arc transition of 5.5mm that described sprue discharge end is provided with a radius, a diameter of 6mm of described sub-runner, by the reasonable setting by sprue and sub-runner, melt flows can be played shunting steering-effecting, melt pressure and heat lose little in sub-runner, the full non-trimming of pipe fitting injected is without current mark.
Description
Technical field
This utility model relates to mould of plastics field, can process the cast gate of plastic elbow mould particularly to a kind of three-plate type
Structure.
Background technology
Along with popularizing of PP-R (random copolymer of ethylene) pipe fitting, PP-R pipe fitting is used in a large number.Generally, PP-R pipe
Part is all to be carried out injection molding by injection machine and obtain.Along with science and technology development, new material is constantly researched and developed, at original base
Accomplishing renewable on plinth, environmental protection, energy-conservation new material, let us sees hope, to some extent solves manufacturing industry
Because shortage of resources problem, the development of new material, bring the biggest market space and development prospect to mould of plastics.But
On market today, often there is the length of injecting cavity, size in mould of plastics, and unreasonable structure causes plastic injection to be discontented with, or
Damaging mould during the demoulding causes mould of plastics to make unsuccessfully, and mould cracks.
Utility model content
The purpose of this utility model is that, for the deficiencies in the prior art, a kind of three-plate type can process plastic elbow mould
Pouring gate structure, it is rational in infrastructure that it has sub-runner, and sprue enters the passage of each die cavity of combination die, and melt flows is risen shunting
Steering-effecting, melt pressure and heat lose little in sub-runner, and the full non-trimming of pipe fitting injected is without the feature of current mark.
For solving the problems referred to above, this utility model provides techniques below scheme: a kind of three-plate type can process plastic elbow mould
Tool pouring gate structure, including impression bolster, stripper and cavity plate, between described cavity plate and stripper and stripper with
Be provided with running gate system between impression bolster, between described stripper and cavity plate symmetrical be provided with four die cavities and four tiltedly lead
Post core-pulling mechanism, described running gate system includes the rounded sub-runner of the tapered sprue in cross section and cross section, described sprue
It is the arc transition of 5.5mm that discharge end is provided with a radius, a diameter of 6mm of described sub-runner.
Further, described impression bolster is provided with two point cast gate, and the minimum diameter of described two point cast gate is 0.4mm.
Further, the surface of described die cavity is provided with carburized layer, and carburized layer thickness is 1～2mm.
Beneficial effect: this utility model, including impression bolster, stripper and cavity plate, described cavity plate and stripper
Between and stripper and impression bolster between be provided with running gate system, symmetrical between described stripper and cavity plate is provided with four
Individual die cavity and four Angle Pin core-pulling mechanisms, described running gate system includes rounded the dividing of sprue and cross section that cross section is tapered
Runner, it is the arc transition of 5.5mm that described sprue discharge end is provided with a radius, a diameter of 6mm of described sub-runner, passes through
By sprue and the reasonable setting of sub-runner, melt flows can be played shunting steering-effecting, melt pressure and heat at sub-runner
Middle loss is little, and the full non-trimming of pipe fitting injected is without current mark.
Accompanying drawing explanation
Fig. 1 is the structural representation that this enforcement is novel.
Description of reference numerals: die cavity 1, Angle Pin core-pulling mechanism 2, sprue 3, sub-runner 4, arc transition 5.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, specific embodiment of the utility model is described in further detail:
As it is shown in figure 1, a kind of three-plate type can process the pouring gate structure of plastic elbow mould, including impression bolster, discharging
Plate and cavity plate, including impression bolster, stripper and cavity plate, between described cavity plate and stripper and stripper and type
Be provided with running gate system between the fixed plate of chamber, between described stripper and cavity plate symmetrical be provided with four die cavities 1 and four tiltedly lead
Post core-pulling mechanism 2, described running gate system includes the rounded sub-runner 4 of the tapered sprue 3 in cross section and cross section, described main flow
Road 3 discharge end is provided with the arc transition 5 that radius is 5.5mm, and a diameter of 6mm of described sub-runner 4, by by sprue 3
With the reasonable setting of sub-runner 4, melt flows can be played shunting steering-effecting, melt pressure and heat and lose in sub-runner 4
Little, the full non-trimming of pipe fitting injected is without current mark.
In the present embodiment, in Design of Dies, it should be noted that be designed larger than away from sprue near sprue 3 gate size
The gate size of 3.Sub-runner 4 can not be the most elongated, the most elongated, temperature, not so can make to be difficult to fill from sprue 3 die cavity farther out
Full.Sub-runner 4 is it is generally required to repeatedly repair, and conditioning reaches balance.Even if reach stream and fill balance, but material time not phase
Difference is had, to requiring that high goods should not use with, goods size out and performance.Under unbalanced is distributed, sub-runner 4
Length is short.If sub-runner 4 is longer, the size head of sub-runner 4 can be made cold slug well along melt direction of advance is slightly long, make cold burden not
Cause in entering die cavity.When sub-runner 4 and die cavity are arranged, plastic projected area total centre of gravity to be used and the effect of locking force of injection machine
Line overlaps.General sub-runner 4 is straight through when 5～below 6mm, relatively big on mobility impact, when straight when more than 8mm, to flowing
Property impact less.
In the present embodiment, described impression bolster is provided with two point cast gate, and the minimum diameter of described two point cast gate is
0.4mm, described runner is circular, a diameter of 6mm of runner.Use the most commonly used circular sub-runner 4, take a diameter of 6mm's
Circular sub-runner 4 cross section, plastic center side arranges feed entrance point, uses two point cast gate, and the diameter of spot pouring mouth is thick according to plastic
Degree is defined as φ 0.4mm.Utilizing Angle Pin core-pulling mechanism 2, carry out the effect of loosing core, it is the cooperations master utilizing guide pillars and bushes
Mould to be play the guiding role.
The surface of described die cavity 3 is provided with carburized layer, and carburized layer thickness is 1～2mm.Carburized layer effect: stripping result is stable
Persistently, promote constant flow, improve surface smoothness, reduce equipment attrition, it is not necessary to mould be cleaned multiple times, reduction in the numbers of seconds and
Waste material, prevents frosting abrasion and scratch, reduces ejection resistance and polishing scratch.
Preparing it addition, this pipe fitting is PP-R material, it can be made to use precise injection molding mode.Certainly, this pipe fitting also may be used
The inserts using propylene and PP-R material or HPb59-1 material is made through precise injection molding technique.
The above, be only preferred embodiment of the present utility model, not make technical scope of the present utility model
Go out any restriction, thus every according to technical spirit of the present utility model, above example is made any trickle amendment, equivalent
Change and modification, all still fall within the range of the technical solution of the utility model.
Claims (3)
1. three-plate type can process a pouring gate structure for plastic elbow mould, including impression bolster, stripper and cavity plate, institute
State between cavity plate and stripper and between stripper and impression bolster, be provided with running gate system, it is characterised in that unloading described in:
Symmetrical between flitch and cavity plate being provided with four die cavities (1) and four Angle Pin core-pulling mechanisms (2), described running gate system includes
The rounded sub-runner (4) of sprue (3) that cross section is tapered and cross section, described sprue (3) discharge end is provided with a radius
For the arc transition (5) of 5.5mm, a diameter of 6mm of described sub-runner (4).
A kind of three-plate type the most according to claim 1 can process the pouring gate structure of plastic elbow mould, it is characterised in that: institute
Stating impression bolster and be provided with two point cast gate, the minimum diameter of described two point cast gate is 0.4mm.
A kind of three-plate type the most according to claim 1 can process the pouring gate structure of plastic elbow mould, it is characterised in that: institute
The surface stating die cavity is provided with carburized layer, and carburized layer thickness is 1～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620709741.1U CN205735846U (en) | 2016-06-30 | 2016-06-30 | A kind of three-plate type can process the pouring gate structure of plastic elbow mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620709741.1U CN205735846U (en) | 2016-06-30 | 2016-06-30 | A kind of three-plate type can process the pouring gate structure of plastic elbow mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205735846U true CN205735846U (en) | 2016-11-30 |
Family
ID=57377951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620709741.1U Expired - Fee Related CN205735846U (en) | 2016-06-30 | 2016-06-30 | A kind of three-plate type can process the pouring gate structure of plastic elbow mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205735846U (en) |
-
2016
- 2016-06-30 CN CN201620709741.1U patent/CN205735846U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20180630 |