CN1660558A - Die cone of nozzle in use for injection mold - Google Patents
Die cone of nozzle in use for injection mold Download PDFInfo
- Publication number
- CN1660558A CN1660558A CN 200410016629 CN200410016629A CN1660558A CN 1660558 A CN1660558 A CN 1660558A CN 200410016629 CN200410016629 CN 200410016629 CN 200410016629 A CN200410016629 A CN 200410016629A CN 1660558 A CN1660558 A CN 1660558A
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- China
- Prior art keywords
- spreader
- shell
- nozzle
- inserts
- thermal conductivity
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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)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
A shunt shuttle of nozzle for injetion moulding is composed of a shell with shunt channels and made of the metal with high surface hardness and an embedded part in said shell and made of the metal with high heat conductivity.
Description
(1) technical field
The present invention relates to a kind of spreader of injection moulding usefulness nozzle, particularly a kind of spreader that is used for injection machine nozzle and injection moulding usefulness hot-runner nozzle belongs to the injection molding technology field.
(2) background technology
In the injecting products production process, adopt hot flow path that fused materials is directly delivered to the charging aperture of die cavity, and make the plastics in the runner be in molten condition always, keep penetrating pressure loss minimum, realize the frozen-free material, thus the conservation and the energy.Traditionally, adopt with the hole irrigation degree of lip-rounding formula fused materials is sent into the charging aperture of die cavity, this structure can produce the dead angle on the one hand; On the other hand, material has directionality at the cast gate place, can produce weld mark at product surface behind the injection die cavity.People have invented and adopted the spreader structure in nozzle flow channels subsequently, and material realizes that by spreader fused materials injects die cavity through flow manifold during injection moulding.This structure has prevented the generation at dead angle, and material is non-directional at spreader cast gate place, has guaranteed the quality of product surface.Because the special role of spreader, spreader must have good wearability and thermal conductivity, keeps good molten condition when guaranteeing service life that it is applicable to large-scale production and material by spreader.Traditional spreader adopts beryllium copper to make, although beryllium copper has good wearability, its case hardness HRC is 36, with good thermal conductivity, its thermal conductivity factor is 121W/mK, but its wearability is not as good as mould steel, and there are short, problems such as the mobile property of fused materials is good inadequately, production cost height in service life in thermal conductivity not as good as copper in actual production process.
(3) summary of the invention
The present invention has overcome the deficiencies in the prior art, and the spreader of a kind of injection moulding with nozzle is provided.This spreader employing has the spreader shell of higher hardness and the spreader inserts of better heat conductivility, makes spreader have surface of good wearability and overall thermal conductivity, has improved the service life of spreader greatly.
The present invention is achieved by the following technical solutions: a kind of injection moulding spreader of nozzle, comprise the spreader shell and place the interior spreader inserts of spreader shell, the spreader shell is made by the higher metal material of case hardness, the spreader inserts is made by the higher metal material of thermal conductivity factor, is equipped with flow manifold on the spreader shell.
The above-mentioned injection moulding spreader of nozzle, the case hardness HRC of described spreader shell is 40～85.
The above-mentioned injection moulding spreader of nozzle, the thermal conductivity factor of described spreader inserts is 100～420W/mK.
Operation principle of the present invention is to adopt the spreader shell with higher hardness and the better spreader inserts of heat conductivility, and the runner that wherein plays shunting action is positioned on the spreader shell, and the surface that contacts with fluid of spreader has good wearability like this; The spreader inserts places in the spreader shell, is wrapped up by the spreader shell, to regulate the thermal conductivity of spreader integral body.Melt flow stream through shunting, is injected the die cavity charging aperture by being positioned at the runner on the spreader housing.
The present invention compared with prior art, compact conformation, convenient disassembly, low cost of manufacture have improved the wearability and the thermal conductivity of spreader, thus the life-span that helps improving flow of melt character and improve spreader.
(4) description of drawings
Fig. 1 is the structural representation of first embodiment of the invention, Fig. 2 is the spreader flow manifold schematic cross-section of Fig. 1, Fig. 3 is the structural representation of second embodiment, Fig. 4 is the spreader flow manifold schematic cross-section of Fig. 3, Fig. 5 is the 3rd example structure schematic diagram, and Fig. 6 is the spreader flow manifold schematic cross-section of Fig. 5.
Among the figure: 1 spreader shell, 2 spreader inserts, 3 spreaders block, 4 spreader housings, 5 flow manifolds.
(5) specific embodiment
Provide embodiments of the invention below in conjunction with accompanying drawing.
Embodiment one
Referring to Fig. 1, Fig. 2, a kind of injection moulding comprises spreader shell 1 and the spreader inserts 2 that places in the spreader shell 1 with the spreader of nozzle, and spreader shell 1 comprises spreader block 3 and spreader housing 4.Spreader block 3 and spreader housing 4 are made by the higher metal material of case hardness, reach 40～55 mould steel, tool steel as case hardness HRC, and other wear-resistant metal material, or case hardness HRC reaches 70～85 mould steel, tool steel and other wear-resistant metal material after treatment.Spreader inserts 2 is made by the higher metal material of thermal conductivity factor, as thermal conductivity factor is the materials such as brass, beryllium copper, magnesium, aluminium and alloy thereof of 100～200W/mK, and thermal conductivity factor is red copper, silver or other thermal conductivity good metal material that 300～420W/mK opens.Spreader inserts 2 is inserted spreader housing 4 central hollow places, contacts with spreader housing 4 well; Spreader block 3, tightly links to each other with spreader housing 4 upper ends as threaded engagement by interference fit or other known mounting means, and spreader inserts 2 is wrapped in the spreader shell 1.Be equipped with flow manifold 5 on the housing 4 of spreader shell 1, melt flow stream through shunting, is injected the die cavity charging aperture by flow manifold 5.
Embodiment two
Referring to Fig. 3, Fig. 4, a kind of injection moulding comprises spreader shell 1 and the spreader inserts 2 that places in the spreader shell 1 with the spreader of nozzle, and spreader shell 1 comprises spreader block 3 and spreader housing 4.Spreader block 3, the material of spreader housing 4 and the material of spreader inserts 2, and assembling is identical with embodiment 1.Be equipped with four flow manifolds 5 on the housing 4 of spreader shell 1, melt flow stream through shunting, is injected the die cavity charging aperture by flow manifold 5.
Embodiment three
Referring to Fig. 5, Fig. 6, a kind of injection moulding comprises spreader shell 1 and the spreader inserts 2 that places in the spreader shell 1 with the spreader of nozzle, and spreader shell 1 comprises spreader block 3 and spreader housing 4.Spreader block 3, the material of spreader housing 4 and the material of spreader inserts 2, and assembling is identical with embodiment 1.Be equipped with eight flow manifolds 5 on the housing 4 of spreader shell 1, melt flow stream through shunting, is injected the die cavity charging aperture by flow manifold 5.
Claims (3)
1. an injection moulding is with the spreader of nozzle, it is characterized in that described spreader comprises the spreader shell and places the interior spreader inserts of spreader shell, the spreader shell is made by the higher metal material of case hardness, the spreader inserts is made by the higher metal material of thermal conductivity factor, is equipped with flow manifold on the spreader shell.
2. the injection moulding according to claim 1 spreader of nozzle, the case hardness HRC that it is characterized in that the spreader shell is 40～85.
3. the injection moulding according to claim 1 spreader of nozzle, the thermal conductivity factor that it is characterized in that the spreader inserts is 100～420W/mK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410016629 CN1660558A (en) | 2004-02-27 | 2004-02-27 | Die cone of nozzle in use for injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410016629 CN1660558A (en) | 2004-02-27 | 2004-02-27 | Die cone of nozzle in use for injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1660558A true CN1660558A (en) | 2005-08-31 |
Family
ID=35010263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410016629 Pending CN1660558A (en) | 2004-02-27 | 2004-02-27 | Die cone of nozzle in use for injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1660558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025119A (en) * | 2011-09-22 | 2013-04-03 | 富瑞精密组件（昆山）有限公司 | Heat dissipation device |
-
2004
- 2004-02-27 CN CN 200410016629 patent/CN1660558A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103025119A (en) * | 2011-09-22 | 2013-04-03 | 富瑞精密组件（昆山）有限公司 | Heat dissipation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |