CN203818476U - Hot runner system of plastic injection mould - Google Patents
Hot runner system of plastic injection mould Download PDFInfo
- Publication number
- CN203818476U CN203818476U CN201420130053.0U CN201420130053U CN203818476U CN 203818476 U CN203818476 U CN 203818476U CN 201420130053 U CN201420130053 U CN 201420130053U CN 203818476 U CN203818476 U CN 203818476U
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- China
- Prior art keywords
- hot
- valve needle
- flow path
- runner
- cast gate
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- Expired - Fee Related
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Abstract
The utility model discloses a hot runner system of a plastic injection mould. The hot runner system comprises a movable mould part and a stationary mould part, wherein a bolt is arranged on a stationary mould base plate for fixing the stationary mould base plate; a locating ring is arranged on the stationary mould base plate; the stationary mould is internally provided with a hot runner one end of which is provided with a hot nozzle; a guide column is arranged on a movable mould base plate; the hot nozzle comprises a valve needle sleeve which is internally provided with a valve needle; the upper end surface of the valve needle sleeve is in seal fit with the valve needle; an injection device is communicated with the valve needle sleeve; when plastic is injected to the cavity of the mould through the hot runner, the gas in the injection device compresses the melting plastic in a gap between the valve needle sleeve and the valve needle when passing through the gap and then enters the cavity of the mould together with the plastic. By adopting the hot runner system of the plastic injection mould, the cavity can be fully filled with the plastic, and a product is prevented from deforming, warping, or the like.
Description
Technical field
The utility model relates to injection mold field, particularly relates to a kind of TOP-TIP of automobile injection mold.
Background technology
Die structure of hot runner and two board mold structures are basic identical, be divided into adiabatic heat flow passage system and heat hot flow passage system, adiabatic heat runner, is around runner, to use the material that pyroconductivity is very low to make, with the plastic cement insulation of melting, heat hot runner, on runner, by the temperature of heating plate control runner,, for the TOP-TIP of injection mo(u)lding, generally include hot nozzle now, flow distribution plate, and temperature controller.
Hot nozzle and flow distribution plate surface fit, and temperature controller is for controlling melt temperature and the fusion time of plastics, and in the time carrying out injection mo(u)lding, molten plastic flow into hot nozzle place through flow distribution plate, thereby arrives mold cavity, carries out injection mo(u)lding.
The likely generation wall unevenness of the goods of TOP-TIP is even, in cooling procedure, warping phenomenon occurs, and tends to cause the density of goods to increase, and product weight is improved, waste.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of TOP-TIP of injection mold, can reduce goods and close the even situation of thickness ununiformity, reduces warping phenomenon.
For solving the problems of the technologies described above, provide a kind of TOP-TIP of injection mold
A kind of TOP-TIP of injection mold, comprise dynamic model part and cover half part, screw is set on fixed clamping plate, for fixing of fixed clamping plate, fixed clamping plate is also provided with centring ring, in cover half, be provided with hot flow path, hot flow path one end is cast gate, cast gate can be understood as molten plastic and enters by running gate system last sect of die cavity, described cast gate comprises 3 sections of continuous sub-cast gates, along Flow of Goods and Materials direction in cast gate, the first cross-talk cast gate presents semi-circular shape, the second cross-talk cast gate presents U-shaped shape, the 3rd cross-talk cast gate presents inversion semi-circular shape, the other end is hot nozzle, guide pillar is set on moving clamping plate, wherein said hot nozzle comprises valve needle cover, in this valve needle cover, be provided with needle, valve needle cover upper surface and the sealing of needle cooperation place arrange, described injection device is connected with valve needle cover, at described hot flow path in mold cavity injection of plastic process, the molten plastic that the gap compressing of gas in injection device between valve needle cover and needle is positioned at this gap enters mold cavity jointly.
A kind of optimal technical scheme, described hot flow path is divided into sprue and runner, sprue is molten plastic position of process at first while being sprayed by nozzle of injector, coaxial with nozzle of injector, sprue plate thickness is 70-80 millimeter, runner is that the middle interconnecting piece of sprue and cast gate divides, and plays shunting and conversion direction
Runner plate thickness is 50-60 millimeter, and runner is " 7 " word shape sidewards, the mode that main hot flow path backing plate adopts two edges to spell.Ensure that each piece is fixed reliable; hot flow path target heat flux pipe protection post; one week designing and arranging tank of hot nozzle; hot runner manifold designing and arranging tank; groove width 12mm, groove depth 3mm, near point hot-runner nozzle adopts the mode of red copper sealing; described hot runner main runner is coated with a ring-shaped heating cavity in periphery, for keeping and heat hot runner temperature.
A kind of optimal technical scheme, set temperature measuring instrument in nozzle, for the temperature in Real-Time Monitoring nozzle.
A kind of optimal technical scheme if runner is longer, is established ejector beam on runner.
A kind of optimal technical scheme, takes out for the ease of finished product plastics sometimes, and sprue adopts the form of conical bore, discharge end diameter amount is little, to reduce and the contact area of die cavity, thereby reduces the reaction force of die cavity internal pressure to it, high-quality steel T8A for choice of material, and the processing of hardening.Its hardness should be lower than nozzle of injector in case the latter broken.
The beneficial effects of the utility model are: make plastics fill up die cavity completely, and can prevent that goods from deforming, the phenomenons such as warpage, its weight saving.
Brief description of the drawings
Fig. 1 is the hot runner system structure schematic diagram of a kind of injection mold of the utility model;
In accompanying drawing, the mark of each parts is as follows: wherein 1 is screw 2, is centring ring, and 3 is sprue bush, 4 is hot flow path, and 5 is hot nozzle, and 6 is guide pillar, 7 is moving clamping plate, 8 fixed clamping plates, and 9 is block water plate, 10 is core, and 11 is punch, and 12 is die, 13 is die block, and 14 for tightening position, 15, ring-shaped heating cavity, 16 power switches, 17 is heating resistor, 18 is cast gate.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made to more explicit defining.
Refer to Fig. 1, the utility model embodiment comprises:
A kind of TOP-TIP of injection mold, comprise dynamic model part and cover half part, screw 1 is set on fixed clamping plate 8, for fixing of fixed clamping plate 8, fixed clamping plate 8 is also provided with centring ring 2, in cover half, be provided with hot flow path 4, hot flow path 4 one end are 3 sections of continuous sub-cast gates, along Flow of Goods and Materials direction in cast gate, the first cross-talk cast gate presents semi-circular shape, the second cross-talk cast gate presents U-shaped shape, and the 3rd cross-talk cast gate presents inversion semi-circular shape
Be provided with hot nozzle 5 at hot flow path 4 front ends, in hot nozzle 5, include heating resistor 17, guide pillar 6 is set on moving clamping plate 7, wherein said hot nozzle 5 comprises valve needle cover, in this valve needle cover, be provided with needle, valve needle cover upper surface and the sealing of needle cooperation place arrange, described injection device is connected with valve needle cover, at described hot flow path 4 in mold cavity injection of plastic process, the molten plastic that the gap compressing of gas in injection device between valve needle cover and needle is positioned at this gap enters mold cavity jointly, hot flow path is divided into sprue and runner, sprue plate thickness is 70-80 millimeter, runner plate thickness is 50-60 millimeter, runner is " 7 " shape and structure sidewards, the mode that main hot flow path backing plate adopts two edges to spell.Ensure that each piece is fixed reliable; hot flow path target heat flux pipe protection post; 5 one weeks designing and arranging tanks of hot nozzle; hot runner manifold designing and arranging tank; groove width 12mm, groove depth 3m, near point hot-runner nozzle adopts the mode of red copper sealing; described main hot flow path is coated with a ring-shaped heating cavity in periphery, for keeping and heat hot runner temperature.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. the TOP-TIP of an injection mold, it is characterized in that: comprise dynamic model part and cover half part, screw is set on fixed clamping plate, for fixing of fixed clamping plate, fixed clamping plate is also provided with centring ring, in cover half, be provided with hot flow path, connect cast gate in hot flow path one end, described cast gate comprises 3 sections of continuous sub-cast gates, along Flow of Goods and Materials direction in cast gate, the first cross-talk cast gate presents semi-circular shape, the second cross-talk cast gate presents U-shaped shape, the 3rd cross-talk cast gate presents inversion semi-circular shape, the other end is provided with hot nozzle, hot nozzle contains heating resistor, guide pillar is set on moving clamping plate, wherein said hot nozzle comprises valve needle cover, in this valve needle cover, be provided with needle, valve needle cover upper surface and the sealing of needle cooperation place arrange, described injection device is connected with valve needle cover, described hot flow path is divided into sprue and runner, sprue plate thickness is 70-80 millimeter, runner plate thickness is 50-60 millimeter, runner is " 7 " shape and structure sidewards, the mode that main hot flow path backing plate adopts two edges to spell, hot flow path is provided with hot flow path guard column, hot nozzle is provided with rhone for one week, rhone groove width 12mm, groove depth 3mm, near some hot-runner nozzle adopts red copper sealing, the sprue of described hot flow path is coated with a ring-shaped heating cavity in periphery.
2. the TOP-TIP of injection mold as claimed in claim 1, is characterized in that, contains temperature measuring set at hot nozzle.
3. the TOP-TIP of injection mold as claimed in claim 1, is characterized in that, on described runner, ejector beam is set, and sprue adopts the form of conical bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420130053.0U CN203818476U (en) | 2014-03-21 | 2014-03-21 | Hot runner system of plastic injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420130053.0U CN203818476U (en) | 2014-03-21 | 2014-03-21 | Hot runner system of plastic injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203818476U true CN203818476U (en) | 2014-09-10 |
Family
ID=51474018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420130053.0U Expired - Fee Related CN203818476U (en) | 2014-03-21 | 2014-03-21 | Hot runner system of plastic injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203818476U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862632A (en) * | 2014-03-21 | 2014-06-18 | 苏州益群模具有限公司 | Hot runner system of injection molding die |
| CN104690899A (en) * | 2015-01-28 | 2015-06-10 | 苏州市天星山精密模具有限公司 | Medical hose pipe mould |
| CN106863711A (en) * | 2017-04-18 | 2017-06-20 | 杭州余杭振华日化玻璃有限公司 | A kind of hot runner molding mould |
-
2014
- 2014-03-21 CN CN201420130053.0U patent/CN203818476U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862632A (en) * | 2014-03-21 | 2014-06-18 | 苏州益群模具有限公司 | Hot runner system of injection molding die |
| CN104690899A (en) * | 2015-01-28 | 2015-06-10 | 苏州市天星山精密模具有限公司 | Medical hose pipe mould |
| CN106863711A (en) * | 2017-04-18 | 2017-06-20 | 杭州余杭振华日化玻璃有限公司 | A kind of hot runner molding mould |
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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: 20140910 Termination date: 20150321 |
|
| EXPY | Termination of patent right or utility model |