CN201792459U - Valve needle sealing device of needle valve-type hot runner die - Google Patents
Valve needle sealing device of needle valve-type hot runner die Download PDFInfo
- Publication number
- CN201792459U CN201792459U CN2010202989858U CN201020298985U CN201792459U CN 201792459 U CN201792459 U CN 201792459U CN 2010202989858 U CN2010202989858 U CN 2010202989858U CN 201020298985 U CN201020298985 U CN 201020298985U CN 201792459 U CN201792459 U CN 201792459U
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- needle
- runner
- cover
- valve needle
- plate
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Abstract
The utility model provides a valve needle sealing device of a needle valve-type hot runner die, which comprises a fixed molding plate, a splitting plate connected below the fixed molding plate, a die cavity setting plate connected with the splitting plate, a runner cover arranged inside the splitting plate, a positioning ring arranged on the runner cover, a main runner arranged inside the runner cover, a sub runner arranged inside the splitting plate, and a nozzle arranged inside the die cavity setting plate, wherein the main runner, the sub runner and the nozzle are communicated with one another; a cylinder chamber is arranged inside the fixed molding plate; a cylinder cover is arranged on the cylinder chamber; a piston is arranged inside the cylinder chamber; a piston screw is arranged inside the piston, a valve needle is connected below the piston screw; a valve needle cover is arranged inside the splitting plate; the valve needle cover is in seal fit with the valve needle; and the head of the valve needle passes through the valve needle cover and matches with the sub runner and the nozzle. The utility model is characterized in that the valve needle cover is a valve needle bolt, a threaded hole is arranged inside the splitting plate, and the valve needle bolt is screwed in the threaded hole. The utility model reduces the time of replacing one valve needle bolt to the range from 3 min to 5 min, thereby greatly reducing the replacement time, increasing the production efficiency and improving the use effect.
Description
Technical field
The utility model relates to a kind of needle sealing device of needle valve hot runner mould, belongs to the mould of plastics field, is applicable in all needle valve hot flow paths of injection mold.
Background technology
Adopt injection mold to produce plastic product, the injection moulding flow process of its plastic raw materials is: the plastic raw materials of fusion injects the mould sprue from injection machine, the runner of flowing through, arrive nozzle again, inject mould cavity by nozzle, so on the product after the injection mo(u)lding, all leave runner clout (cast gate material), need by hand the cast gate material to be cut, therefore time-consuming taking a lot of work developed the needle valve hot runner mould in recent years, and primary structure is included in the solid plate of mould and is shaped on cylinder chamber, piston is installed in the cylinder chamber, piston connects needle down, and the needle cover is installed in the flow distribution plate, and needle passes the needle cover and contacts with nozzle, the needle cover is sealed and matched with needle, prevent that plastic raw materials from overflowing, after plastic raw materials injected mould cavity, cylinder drove needle work, the runner clout of staying in runner and the nozzle (cast gate material) is clamp-oned in the die cavity, making on the product after the moulding does not have the cast gate material, need not prune, and saves man-hour.But in actual production, because existing needle cover all is to inlay (fixed installation) in flow distribution plate, and the needle cover is sealed and matched with needle, and wearing and tearing easily at work need often to change.Connect when changing and the hot flow path parts of mould all need be opened owing to inlay, remove clout, cleaning part, very trouble.The mould of a multi-cavity mold particularly, for example produce the plastic tube embryo, a mould is produced 32 chambeies (individual) pipe embryo often, perhaps a mould is produced 48 chambeies (individual) pipe embryo, or even the mould in 64 chambeies, just the needle parts and the hot flow path parts in each chamber all need be opened, reinstall again, debug, need expend 3-4 days man-hours, trouble very influences production efficiency.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming of prior art, a kind of employing thread connecting mode to be provided, the needle cover being spun in the flow distribution plate, loading and unloading easily, it is convenient to change, and saves man-hour, the needle sealing device of the needle valve hot runner mould of enhancing productivity.
The technical scheme of the needle sealing device of the utility model needle valve hot runner mould is: comprise the mould solid plate, solid plate connects flow distribution plate down, flow distribution plate connects the die cavity compound plate, flowing channel sleeve is installed in the flow distribution plate, centring ring is arranged on the flowing channel sleeve, be shaped on sprue in the flowing channel sleeve, be shaped on runner in the flow distribution plate, be equipped with nozzle in the die cavity compound plate, sprue, runner and nozzle interconnect, be shaped on cylinder chamber in the described solid plate, cylinder head is arranged on the cylinder chamber, piston is installed in the cylinder chamber, piston screw is arranged in the piston, piston screw connects needle down, and the needle cover is installed in flow distribution plate, and the needle cover is sealed and matched with needle, the head of needle passes the needle cover and runner matches with nozzle, it is characterized in that described needle cover for the needle bolt, is shaped on screwed hole in the described flow distribution plate, the needle bolt is spun in the screwed hole.
The needle sealing device of the utility model needle valve hot runner mould, existing needle cover is embedded in the flow distribution plate, change the mode that is threaded that adopts now into, when needing to change, the cylinder cover of dismantling, take out piston, piston screw and needle utilize instrument to stretch in the cylinder chamber, and the needle bolt is screwed out from screwed hole, single-piece is changed, do not need all to open the mold hot flow parts, avoid ressembling, debugging is changed easily, easily, be specially adapted to the needle valve type hot runner mould of a multi-cavity mold, need expend 3-4 days man-hours and compare with existing, change a needle bolt now, only need 3--5 minute, just the needle bolt can be screwed out, saved the replacing time greatly, enhanced productivity, effect is very remarkable.
The needle sealing device of the utility model needle valve hot runner mould is equipped with gasket seal between described needle bolt and the screwed hole, and gasket seal has been arranged, and needle bolt seal performance is good, prevents that plastic raw materials from overflowing.The top of described needle bolt be shaped on the rotation usefulness interior hexagonal, outer-hexagonal, interior four jiaos or outer four jiaos and various rotating holes or limits such as quincunx or in-line, can stretch in the cylinder chamber with instruments such as inner hexagon spanners during replacing, dismounting needle bolt, very convenient.Described nozzle is the copper nozzle, and the heat conduction of copper nozzle is good, and non-corrosive, copper nozzle are equipped with shunting cover and insulating collar outward, prevents that heat scatters and disappears, and plastic cement can not solidify, and can produce continuously.Be shaped on 2 above runners in the described flow distribution plate, a needle bolt is installed in each runner, be applicable to the needle valve type hot runner mould of a multi-cavity mold, the production efficiency height.
Description of drawings
Fig. 1 is the needle schematic diagram of sealing device of the utility model needle valve hot runner mould.
The specific embodiment
The utility model relates to a kind of needle sealing device of needle valve hot runner mould, as shown in Figure 1, comprise mould solid plate 1, solid plate connects flow distribution plate 2 down, flow distribution plate connects die cavity compound plate 3, flowing channel sleeve 19 is installed in the flow distribution plate, centring ring 4 is arranged on the flowing channel sleeve, be shaped on sprue 5 in the flowing channel sleeve, be shaped on runner 6 in the flow distribution plate, be equipped with nozzle 7 in the die cavity compound plate, sprue, runner and nozzle interconnect, be shaped on cylinder chamber 8 in the described solid plate 1, cylinder head 14 is arranged on the cylinder chamber, piston 9 is installed in the cylinder chamber, piston screw 10 is arranged in the piston, piston screw connects needle 11 down, and the needle cover is installed in flow distribution plate 2, and the needle cover is sealed and matched with needle, the head of needle 11 passes the needle cover and runner 6 matches with nozzle 7, it is characterized in that described needle cover for needle bolt 12, is shaped on screwed hole 13 in the described flow distribution plate 2, needle bolt 12 is spun in the screwed hole 13.This programme is embedded in existing needle cover in the flow distribution plate, change the mode that is threaded that adopts now into, when needing to change, the cylinder cover 14 of dismantling, take out piston 9, piston screw 10 and needle 11, utilize instrument to stretch in the cylinder chamber 8, needle bolt 12 is screwed out from screwed hole 13, and single-piece is changed, and does not need all to open the mold hot flow parts, avoid ressembling, debugging, change easily, easily, be specially adapted to the needle valve type hot runner mould of a multi-cavity mold, need expend 3-4 days man-hours and compare with existing, change a needle bolt now, only need 3--5 minute, just the needle bolt can be screwed out, saved the replacing time greatly, enhance productivity, effect is very remarkable.Be equipped with gasket seal 16 between described needle bolt 12 and the screwed hole 13, gasket seal has been arranged, needle bolt seal performance is good, prevents that plastic raw materials from overflowing.The top of described needle bolt 12 is shaped on interior hexagonal 15, outer-hexagonal, interior four jiaos or outer four jiaos and various rotating holes or the limits such as quincunx or in-line that the top is shaped on rotation usefulness, can stretch in the cylinder chamber with instruments such as inner hexagon spanners during replacing, dismounting needle bolt, very convenient.Described nozzle 7 is the copper nozzle, and the heat conduction of copper nozzle is good, and non-corrosive, copper nozzle are equipped with shunting cover 17 and insulating collar 18 outward, prevents that heat scatters and disappears, and plastic cement can not solidify, and can produce continuously.Be shaped on 2 above runners 6 in the described flow distribution plate 2, a needle bolt 12 is installed in each runner 6, be applicable to the needle valve type hot runner mould of a multi-cavity mold, the production efficiency height.
Claims (5)
1. the needle sealing device of needle valve hot runner mould, comprise mould solid plate (1), solid plate connects flow distribution plate (2) down, flow distribution plate connects die cavity compound plate (3), flowing channel sleeve (19) is installed in the flow distribution plate, centring ring (4) is arranged on the flowing channel sleeve, be shaped on sprue (5) in the flowing channel sleeve, be shaped on runner (6) in the flow distribution plate, be equipped with nozzle (7) in the die cavity compound plate, sprue, runner and nozzle interconnect, and are shaped on cylinder chamber (8) in the described solid plate (1), cylinder head (14) is arranged on the cylinder chamber, piston (9) is installed in the cylinder chamber, piston screw (10) is arranged in the piston, piston screw connects needle (11) down, the needle cover is installed in flow distribution plate (2), the needle cover is sealed and matched with needle, and the head of needle (11) passes the needle cover and runner (6) matches with nozzle (7), it is characterized in that described needle cover is needle bolt (12), be shaped on screwed hole (13) in the described flow distribution plate (2), needle bolt (12) is spun in the screwed hole (13).
2. the needle sealing device of needle valve hot runner mould as claimed in claim 1 is characterized in that being equipped with gasket seal (16) between described needle bolt (12) and the screwed hole (13).
3. the needle sealing device of needle valve hot runner mould as claimed in claim 1 is characterized in that the top of described needle bolt (12) is shaped on interior hexagonal (15), outer-hexagonal, interior four jiaos or outer four jiaos and the quincunx or in-line of rotation usefulness.
4. the needle sealing device of needle valve hot runner mould as claimed in claim 1 is characterized in that described nozzle (7) is the copper nozzle, and the copper nozzle is equipped with shunting cover (17) and insulating collar (18) outward.
5. the needle sealing device of needle valve hot runner mould as claimed in claim 1 is characterized in that being shaped in the described flow distribution plate (2) 2 above runners (6), and a needle bolt (12) is installed in each runner (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202989858U CN201792459U (en) | 2010-08-17 | 2010-08-17 | Valve needle sealing device of needle valve-type hot runner die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202989858U CN201792459U (en) | 2010-08-17 | 2010-08-17 | Valve needle sealing device of needle valve-type hot runner die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201792459U true CN201792459U (en) | 2011-04-13 |
Family
ID=43847380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202989858U Expired - Fee Related CN201792459U (en) | 2010-08-17 | 2010-08-17 | Valve needle sealing device of needle valve-type hot runner die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201792459U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371654A (en) * | 2010-08-17 | 2012-03-14 | 於岩君 | Valve needle sealing device for needle valve type hot runner mold |
| CN103128933A (en) * | 2011-11-28 | 2013-06-05 | 马斯特模具（昆山）有限公司 | Improved structure of hot runner valve disc |
| CN103213247A (en) * | 2012-01-18 | 2013-07-24 | 上海瀚典热流道科技有限公司 | Multipoint needle valve |
| CN106696200A (en) * | 2016-12-28 | 2017-05-24 | 台州伊瑞模具有限公司 | Hot runner system |
-
2010
- 2010-08-17 CN CN2010202989858U patent/CN201792459U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371654A (en) * | 2010-08-17 | 2012-03-14 | 於岩君 | Valve needle sealing device for needle valve type hot runner mold |
| CN103128933A (en) * | 2011-11-28 | 2013-06-05 | 马斯特模具（昆山）有限公司 | Improved structure of hot runner valve disc |
| CN103213247A (en) * | 2012-01-18 | 2013-07-24 | 上海瀚典热流道科技有限公司 | Multipoint needle valve |
| CN103213247B (en) * | 2012-01-18 | 2016-12-14 | 上海瀚典热流道科技有限公司 | Multipoint needle valve |
| CN106696200A (en) * | 2016-12-28 | 2017-05-24 | 台州伊瑞模具有限公司 | Hot runner system |
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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: 20110413 Termination date: 20160817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |