CN2638963Y - Hot runner pneumatic needle valve type single jet for injection moulding - Google Patents
Hot runner pneumatic needle valve type single jet for injection moulding Download PDFInfo
- Publication number
- CN2638963Y CN2638963Y CN 03255689 CN03255689U CN2638963Y CN 2638963 Y CN2638963 Y CN 2638963Y CN 03255689 CN03255689 CN 03255689 CN 03255689 U CN03255689 U CN 03255689U CN 2638963 Y CN2638963 Y CN 2638963Y
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- nozzle
- main body
- cylinder
- runner
- needle
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- Expired - Fee Related
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Abstract
The utility model relates to a hot runner pneumatic needle valve type single jet for injection moulding, which belongs to the technical area of injection moulding. The utility model consists of a main body, a nozzle and a cylinder; wherein the main boy and the nozzle penetrate the tubular pat of the piston of the cylinder, the valve pinhead of the nozzle is in a cup connection with the cross-bar of the piston, the main body and the nozzle are positioned by pins and fixed by screws, the upper cover of the cylinder is pressed against the step surface of the upper end of the main body, while the step hole of the inside part of the lower cover of the cylinder is pressed against the flange of the cap of the body of the nozzle to press and retain the main body and the nozzle in the cylinder, the screw connection between the positioning ring and the fixed mould plate tightly presses the whole valve type nozzle into the mould plate hole, and a plurality of rotation stopping pins are provided between the lower cover and the nozzle and between the lower cover and the fixed mould plate. The utility model has the advantages that the temperature distribution is even, the structure is compact, the operation of the valve pinhead and the piston is stable and reliable, the assembling and replacing are convenient, the phenomenon of material leakage is prevented and the material changing and color shifting are improved.
Description
Technical field
The utility model relates to a kind of single injector, particularly a kind of injection moulding belongs to the injection molding technology field with the pneumatic needle valve single injector of hot flow path.
Background technology
In common hot-runner nozzle technology, product surface more or less all can leave some gate vestiges, thereby it is attractive in appearance to influence it, if cast gate is too little, then stop up easily, cast gate is too big, and curtain coating, wire drawing then take place easily, perhaps phenomenons such as refluence take place in the material in the die cavity, adopt needle jet then can eliminate these defectives.At present, the needle valve hot-runner nozzle has been developed many kinds, find through the file retrieval, China Patent No. is 99213469.2 " needle valve type hot runner nozzle device ", this spray nozzle device is by runner plate, nozzle carrier, nozzle, the die cavity solid plate, the runner template, solid plate is formed, runner plate is to connect mouth by lining, thermocouple, heating rod, plug, screw is formed, nozzle carrier comprises thermocouple, heating collar, screw is formed, nozzle comprises needle, spreader, liner, nozzle cage, insulating collar is formed, tubaeform runner hole is arranged in the nozzle carrier, runner plate and nozzle carrier are with being threaded, nozzle carrier and nozzle are with being threaded, and it is to be enclosed within outside the liner that nozzle cage, nozzle cage are arranged in the nozzle, inside liner is equipped with needle and spreader, spreader and needle socket.The shortcoming of this nozzle is: 1, axial along nozzle flow channel, only in the heating of nozzle carrier outer wall, nozzle cage there is no heating, thereby the axial temperature skewness of runner; 2, at the inner spreader of installing of nozzle flow channel, increased the pressure loss in the runner; 3, needle adopts copper or Cu alloy material, and wear extent is big at the cast gate place, and needle needs often to change; 4, the fit clearance between insulating collar and the nozzle easily produces Lou material phenomenon; 5, the plastics thermal insulation layer between nozzle cage head and pattern hole will cause reloading or colour changing bad.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, provide a kind of injection moulding with the pneumatic needle valve single injector of hot flow path, the reload advantage of colour changing of make that it has uniformity of temperature profile, compact conformation, assembling is changed convenient, anti-leak-stopping material phenomenon and improvement.
The utility model is achieved through the following technical solutions, the utility model comprises: main body, nozzle and cylinder, main body and nozzle pass the hollow parts of cylinder piston, and the nozzle needle is followed the cross bar socket of piston, and the motion of cylinder piston can drive the nozzle needle and do moving both vertically of concentric; Main body and nozzle are fastening with pin location, screw; Cylinder upper cover is pushed down the step surface of main body upper end, the stepped hole of lower cover of air cylinder inside then withstands the shade edge of the nozzle body of nozzle, thereby main body and nozzle are pressed within the cylinder, the screw of locating ring and solid plate is connected then and can be pressed on whole valve type nozzle in the pattern hole, between lower cover and nozzle, lower cover and solid plate standstill locking pin is arranged all simultaneously.
Main body comprises: runner main body, main body heating collar, main body thermocouple, runner sealing ring.Two step surfaces are arranged on the runner main body, the upper end step face has an aperture, the main body thermocouple is loaded on wherein, main body heating collar lock ring is at the outer wall of main body, step surface and cylinder upper cover by the lower end prevent main body heating collar generation axial displacement, and main body is provided with oblique runner and exhaust passage, and oblique runner joint face is provided with the runner sealing ring, bottom part body mid portion fluting draws logical, and the main body thermocouple places the installing hole of main body.
Nozzle comprises: nozzle body, nozzle head, needle, nozzle heating collar, nozzle thermocouple.The upper end of nozzle perforate closely can be moved freely again to pass the straight-through runner of needle, to cooperate therebetween, and the needle material adopts W6Mo5Cr4V2, and the surface is made titanium nitride and handled, and its case hardness reaches more than the HRC62, and is wear-resisting corrosion-resistant again.The next door of epimere needle also has oblique runner and exhaust passage, and the exhaust passage end is positioned on the mating surface of needle and nozzle body.Adopt interference fit between nozzle head and nozzle body, can not only need change nozzle head during sealing when inner surface wearing and tearing in the cast gate place of nozzle head are excessive, and needn't change whole nozzle body.Consider nozzle in the axial thermal expansion of runner, utilize the side, bottom of nozzle head to carry out sealing, promptly the cooperation of nozzle head and template is comparatively tight.The nozzle thermocouple places the elongate grooves of nozzle body outer surface, the nozzle heating collar then is wrapped in the outer surface of nozzle body, and the power density distribution of nozzle heating collar can specially be arranged as required, even as far as possible to guarantee in the axial Temperature Distribution of runner, and check ring is stuck in the radial slot of nozzle body with the fixed nozzle heating collar.
The utility model compared with prior art has the following advantages: the outer wall of (1) main body and nozzle is equipped with spirality heating collar and thermocouple, and the heating power Density Distribution can specially arrange as required, has guaranteed the uniformity of temperature profile that runner is axial; (2) needle adopts special material to make, and specially treated is carried out on the surface, has higher wearability and corrosion resistance, thereby durable in use; (3) connected mode of each parts of nozzle is simple, and dismounting and change is convenient; (4) main body and nozzle body are positioned among the cylinder, make the compact conformation of whole needle jet, generally can not be subjected to the restriction of die size; (5) the excessive face of the runner between main body and nozzle body is equipped with sealing ring, and the tight fit between nozzle head side and die hole all can effectively be prevented leak-stopping material phenomenon, and the gap of nozzle head end face and pattern hole can solve thermal expansion problem again; (6) runner is streamlined, and the cast gate place does not have material stock, so the colour changing of reloading of nozzle is easy.
Description of drawings
Fig. 1 the utility model structural representation
Fig. 2 the utility model main structure chart
Fig. 3 the utility model nozzle arrangements figure
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises: main body 1, nozzle 2 and cylinder 3, main body 1 and nozzle 2 pass the hollow parts of piston in the cylinder 3, and nozzle 2 needles 10 are with the cross bar socket of piston, the motion of cylinder 3 pistons can drive the nozzle needle and do moving both vertically of concentric, main body 1 and nozzle 2 are located by pin, screw is fastening, cylinder 3 loam cakes are pushed down the step surface of main body 1 upper end, the stepped hole of cylinder 3 lower cover inside then withstands the shade edge of the nozzle body 8 of nozzle 2, thereby main body 1 and nozzle 2 are pressed within the cylinder 3, the screw of solid plate 15 and locating ring 16 is connected then whole valve type nozzle is pressed in the pattern hole, simultaneously lower cover and nozzle 2,15 of lower cover and solid plates all have standstill locking pin 13.
Main body 1 comprises: runner main body 4, main body heating collar 5, main body thermocouple 6, runner sealing ring 7, two step surfaces are arranged on the runner main body 4, the upper end step face has an aperture, main body thermocouple 6 is arranged on wherein, main body heating collar 5 lock rings are at the outer wall of main body 1, and main body 1 is provided with oblique runner and exhaust passage, and oblique runner joint face is provided with runner sealing ring 7, main body 1 bottom mid portion fluting draws logical, and main body thermocouple 6 places the installing hole of main body 1.
Nozzle 2 comprises: nozzle body 8, nozzle head 9, needle 10, nozzle heating collar 11, nozzle thermocouple 12.Nozzle 2 upper end perforates are to pass needle 10 straight-through runners, and the next door of epimere needle 10 also has oblique runner and exhaust passage, and the exhaust passage end is positioned on the mating surface of needle 10 and nozzle body 8; Nozzle head 9 and nozzle body 8 interference fit, sealing is carried out in the side, bottom of nozzle head 9, nozzle thermocouple 12 places the elongate grooves of nozzle body 8 outer surfaces, 11 outer surfaces that are wrapped in nozzle body 8 of nozzle heating collar, and the power density distribution of nozzle heating collar 11 can arrange, and check ring 14 is stuck in the radial slot of nozzle body 8 with fixed nozzle heating collar 11.
Main body 1, nozzle body 8, needle 10 are positioned on the axis, and it is the exhaust passage of 3mm that there is diameter main body 1 and nozzle body 8 inside.
Claims (4)
1, a kind of injection moulding pneumatic needle valve single injector of hot flow path, comprise: main body (1), nozzle (2) and cylinder (3), it is characterized in that, main body (1) and nozzle (2) pass the hollow parts of cylinder (3) piston, nozzle (2) needle (10) is with the cross bar socket of piston, main body (1) and nozzle (2) are located by pin, screw is fastening, cylinder (3) loam cake is pushed down the step surface of main body (1) upper end, the stepped hole of cylinder (3) lower cover inside then withstands the shade edge of the nozzle body (8) of nozzle (2), thereby main body (1) and nozzle (2) are pressed within the cylinder (3), the screw of solid plate (15) and locating ring (16) is connected then whole valve type nozzle is pressed in the pattern hole, simultaneously lower cover and nozzle (2), standstill locking pin (13) is all arranged between lower cover and solid plate (15).
2, the injection moulding according to claim 1 pneumatic needle valve single injector of hot flow path, it is characterized in that, main body (1) comprising: runner main body (4), main body heating collar (5), main body thermocouple (6), runner sealing ring (7), two step surfaces are arranged on the runner main body (4), the upper end step face has an aperture, main body thermocouple (6) is arranged on wherein, main body heating collar (5) lock ring is at the outer wall of main body (1), main body (1) is provided with oblique runner and exhaust passage, oblique runner joint face is provided with runner sealing ring (7), main body (1) bottom mid portion fluting draws logical, and main body thermocouple (6) places the installing hole of main body (1).
3, the injection moulding according to claim 1 pneumatic needle valve single injector of hot flow path, it is characterized in that, nozzle (2) comprising: nozzle body (8), nozzle head (9), needle (10), nozzle heating collar (11), nozzle thermocouple (12), nozzle (2) upper end perforate is to pass the straight-through runner of needle (10), the next door of epimere needle (10) also has oblique runner and exhaust passage, the exhaust passage end is positioned on the mating surface of needle (10) and nozzle body (8), nozzle head (9) and nozzle body (8) interference fit, sealing is carried out in the side, bottom of nozzle head (8), nozzle thermocouple (12) places the elongate grooves of nozzle body (8) outer surface, nozzle heating collar (11) then is wrapped in the outer surface of nozzle body (8), and the power density distribution of nozzle heating collar (11) can arrange, check ring (14) is stuck in fixed nozzle heating collar (11) in the radial slot of nozzle body (8).
4, injection moulding according to claim 1 is characterized in that with the pneumatic needle valve single injector of hot flow path main body (1), nozzle body (8) and needle (10) are positioned on the axis, and it is the exhaust passage of 3mm that there is diameter main body (1) and nozzle body (8) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255689 CN2638963Y (en) | 2003-07-17 | 2003-07-17 | Hot runner pneumatic needle valve type single jet for injection moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255689 CN2638963Y (en) | 2003-07-17 | 2003-07-17 | Hot runner pneumatic needle valve type single jet for injection moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2638963Y true CN2638963Y (en) | 2004-09-08 |
Family
ID=34295066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255689 Expired - Fee Related CN2638963Y (en) | 2003-07-17 | 2003-07-17 | Hot runner pneumatic needle valve type single jet for injection moulding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2638963Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249712B (en) * | 2008-04-02 | 2011-04-06 | 许南旭 | Hot-runner pin valve type nozzle for injection molding |
| CN102438803A (en) * | 2009-05-06 | 2012-05-02 | 爱维康热流道系统有限公司 | Hot nozzle for lateral spraying |
| 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 |
| CN110871152A (en) * | 2018-09-04 | 2020-03-10 | 罗天珍 | Needle plug impact type injection dispensing valve |
| CN113442383A (en) * | 2020-03-27 | 2021-09-28 | 佳能株式会社 | Hot runner nozzle, injection molding apparatus, and method of manufacturing resin molded product |
-
2003
- 2003-07-17 CN CN 03255689 patent/CN2638963Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101249712B (en) * | 2008-04-02 | 2011-04-06 | 许南旭 | Hot-runner pin valve type nozzle for injection molding |
| CN102438803A (en) * | 2009-05-06 | 2012-05-02 | 爱维康热流道系统有限公司 | Hot nozzle for lateral spraying |
| CN102438803B (en) * | 2009-05-06 | 2014-06-04 | 爱维康热流道系统有限公司 | Hot nozzle for lateral spraying |
| 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 |
| CN110871152A (en) * | 2018-09-04 | 2020-03-10 | 罗天珍 | Needle plug impact type injection dispensing valve |
| CN113442383A (en) * | 2020-03-27 | 2021-09-28 | 佳能株式会社 | Hot runner nozzle, injection molding apparatus, and method of manufacturing resin molded product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C32 | Full or partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20061205 Decision number of declaring invalidation: 9025 Case number: 5W07339 Conclusion of examination: Patent rights 3255689.6 and 2 of the utility model 1 were invalid, and that the patent rights requirements 3 and 4 remain valid. Decision date: 20061205 Denomination of utility model: Hot runner pneumatic needle valve type single jet for injection moulding Granted publication date: 20040908 Patentee: Kelangning Tech Equipment Co., Ltd., Shanghai Review decision number: 9025 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |