CN205969785U - Three board -like workable plastics internal thread pipe box moulds - Google Patents
Three board -like workable plastics internal thread pipe box moulds Download PDFInfo
- Publication number
- CN205969785U CN205969785U CN201620709701.7U CN201620709701U CN205969785U CN 205969785 U CN205969785 U CN 205969785U CN 201620709701 U CN201620709701 U CN 201620709701U CN 205969785 U CN205969785 U CN 205969785U
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- China
- Prior art keywords
- die cavity
- stripper
- push rod
- board
- die
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a plastic mold field, in particular to three board -like workable plastics internal thread pipe box moulds, including die cavity fixed plate, stripper and die cavity board, all be equipped with the runner between die cavity board and the stripper and between stripper and the die cavity fixed plate, the symmetry is equipped with four die cavities between stripper and the die cavity board, the evenly distributed of four die cavity symmetries is in the middle part of die cavity board, die cavity board lower extreme is equipped with the push rod, the cover is equipped with reset spring on the push rod, having seted up alternately cross subchannel in the die cavity, through adopting alternately cross subchannel, having made subchannel structural design reasonable, the product pipe fitting of injecting out is full, and flashless does not have the current mark phenomenon to be taken place, uses through four angular cam core -pulling mechanism, four die cavities, push rod and reset spring's cooperation in addition, can the automatic drawing of patterns after the messenger moulds plastics and finishes, and the mould has sufficient rigidity.
Description
Technical field
This utility model is related to plastic mould field, can process plastics internal thread pipe box mould particularly to a kind of three-plate type.
Background technology
With the popularization of PP-R (random copolymer of ethylene) pipe fitting, PP-R pipe fitting is adopted in a large number.Generally, PP-R pipe
Part is all to carry out injection molding by injection machine and obtains.Constantly develop with science and technology, new material is constantly researched and developed, in original base
Renewable, environmental protection, the new material of energy-conservation are accomplished on plinth, let us sees hope, to some extent solves manufacturing industry
Because shortage of resources problem, the development of new material, bring the very big market space and development prospect to mould of plastics.Existing city
On field, mould of plastics often occurs that sub-runner unreasonable structure leads to plastic injection to be discontented with, or during the demoulding, push rod damages mould
Mould of plastics is led to make unsuccessfully, mould produces surface damage or demoulding failure.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, and a kind of three-plate type can process plastics internal thread pipe box mould
Tool, it has, and sub-runner is rational in infrastructure, and mould has enough rigidity, the feature of the full non-trimming of pipe box part no current mark,
For solving the above problems, this utility model provides technical scheme below：A kind of three-plate type can process fiber tube in plastics
Mold, including impression bolster, stripper and cavity plate, between described cavity plate and stripper and stripper and die cavity are solid
Be equipped with runner between fixed board, symmetrical between described stripper and cavity plate be provided with four die cavities, described four die cavities are symmetrical
The middle part being evenly distributed on described cavity plate, described cavity plate lower end is provided with push rod, described push rod is arranged with back-moving spring,
Cross sub-runner is offered in described die cavity.
Further, it is provided with sheath between described push rod and die cavity, described sheath is embedded on the hole wall of die cavity.
Further, a diameter of 6mm of described cross sub-runner.
Further, the surface of described die cavity is provided with carburized layer, and carburized layer thickness is 1～2mm.
Beneficial effect：This utility model includes impression bolster, stripper and cavity plate, described cavity plate and stripper it
Between and stripper and impression bolster between be equipped with runner, symmetrical between described stripper and cavity plate be provided with four types
Chamber, the symmetrical middle part being evenly distributed on described cavity plate of described four die cavities, described cavity plate lower end is provided with push rod, described pushes away
It is arranged with back-moving spring on bar, in described die cavity, offers cross sub-runner, by using cross sub-runner, making point
Flow passage structure is reasonable in design, and the product pipe fitting injecting is full, non-trimming no current mark phenomenon occur, additionally by four die cavities,
Using cooperatively of push rod and back-moving spring, can be with automatic demoulding after so that injection is finished, and mould has enough rigidity.
Brief description
Fig. 1 is the new top view of this enforcement.
Fig. 2 is the new axonometric chart of this enforcement.
Description of reference numerals：Cavity plate 1, stripper 2, die cavity 3, sub-runner 4, push rod 5, back-moving spring 6.
Specific embodiment
With reference to Figure of description and embodiment, specific embodiment of the utility model is described in further detail：
As depicted in figs. 1 and 2, a kind of three-plate type can process plastics internal thread pipe box mould, including impression bolster, stripper
2 and cavity plate 1, it is equipped with runner between described cavity plate 1 and stripper 2 and between stripper 2 and impression bolster, described
Symmetrical between stripper 2 and cavity plate 1 be provided with four die cavities 3, what described four die cavities 3 were symmetrical is evenly distributed on described die cavity
The middle part of plate 1, described cavity plate 1 lower end is provided with push rod 5, described push rod 5 is arranged with back-moving spring 6, opens up in described die cavity
There is cross sub-runner, by using cross sub-runner 4, making sub-runner reasonable in design, the product pipe injecting
Part is full, and non-trimming no current mark phenomenon occurs, and additionally by using cooperatively of four die cavities 3, push rod 5 and back-moving spring 6, utilizes
Push rod 5 carries out core pulling, carries out core pulling effect, and using back-moving spring 6, mould is carried out can be automatic after reset makes injection finish
The demoulding, mould has enough rigidity, and by the way of single-point charging, is easy to process, by using two point cast gate 4, making injection
Chamber length size to fit, reasonable in design, the product pipe fitting injecting is full, and non-trimming no current mark phenomenon occurs, and so makes
Production cost and production efficiency have obtained certain improvement.
In the present embodiment, between described push rod 5 and die cavity 3, it is provided with sheath, described sheath is embedded on the hole wall of die cavity 3,
Push rod and die cavity can be played a protective role by sheath, extend the service life of die cavity.
In the present embodiment, the minimum diameter of described two point cast gate 4 is 0.4mm, and described runner is circle, runner a diameter of
6mm.Using the cross sub-runner section of a diameter of 6mm, plastic center side arranges feed entrance point, using two point cast gate 4,
The diameter of spot pouring mouth is defined as φ 0.4mm according to plastic thickness.Using push rod 5 core-pulling mechanism, carry out core pulling effect, when push pedal
When locus are inadequate, back-moving spring 6 is directly sleeved on push rod 5, during die sinking, ejecting mechanism utilizes push rod 5 pushing out product, so
Borrowing the back-moving spring 6 that is enclosed within push rod 5 afterwards makes ejecting mechanism reset, then carries out matched moulds next time, injection.
The surface of described die cavity 3 is provided with carburized layer, and carburized layer thickness is 1～2mm.Carburized layer acts on：Stripping result is stable
Persistently, promote constant flow, improve surface smoothness, reduce equipment attrition it is not necessary to mould is cleaned multiple times, reduction in the numbers of seconds and
Waste material, prevents frosting abrasion and abrades, reduce ejection resistance and polishing scratch.
In addition, this pipe fitting is prepared for PP-R material, it can be to be made using precise injection molding mode.Certainly, this pipe fitting also may be used
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 technical scope of the present utility model is made
Go out any restriction, thus every any trickle amendment above example made according to technical spirit of the present utility model, equivalent
Change and modification, all still fall within the range of the technical solution of the utility model.
Claims (4)
1. a kind of three-plate type can process plastics internal thread pipe box mould, including impression bolster, stripper (2) and cavity plate (1), institute
State between cavity plate (1) and stripper (2) and stripper (2) be equipped with runner and impression bolster between it is characterised in that：
Symmetrical between described stripper (2) and cavity plate (1) be provided with four die cavities (3), described four die cavities (3) symmetrical uniformly point
Cloth is provided with push rod (5), described push rod (5) is arranged with reset in the middle part of described cavity plate (1), described cavity plate (1) lower end
Spring (6), offers cross sub-runner in described die cavity (3).
2. a kind of three-plate type according to claim 1 can process plastics internal thread pipe box mould it is characterised in that：Described push rod
(5) it is provided with sheath and die cavity (3) between, described sheath is embedded on the hole wall of die cavity (3).
3. a kind of three-plate type according to claim 1 can process plastics internal thread pipe box mould it is characterised in that：Described intersection
A diameter of 6mm of cross sub-runner.
4. a kind of three-plate type according to claim 1 can process plastics internal thread pipe box mould it is characterised in that：Described die cavity
(3) surface is provided with carburized layer, and carburized layer thickness is 1～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620709701.7U CN205969785U (en) | 2016-06-30 | 2016-06-30 | Three board -like workable plastics internal thread pipe box moulds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620709701.7U CN205969785U (en) | 2016-06-30 | 2016-06-30 | Three board -like workable plastics internal thread pipe box moulds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205969785U true CN205969785U (en) | 2017-02-22 |
Family
ID=58024145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620709701.7U Expired - Fee Related CN205969785U (en) | 2016-06-30 | 2016-06-30 | Three board -like workable plastics internal thread pipe box moulds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205969785U (en) |
-
2016
- 2016-06-30 CN CN201620709701.7U patent/CN205969785U/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 |
Granted publication date: 20170222 Termination date: 20210630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |