CN201483724U - Hot runner spray nozzle - Google Patents
Hot runner spray nozzle Download PDFInfo
- Publication number
- CN201483724U CN201483724U CN2009200601578U CN200920060157U CN201483724U CN 201483724 U CN201483724 U CN 201483724U CN 2009200601578 U CN2009200601578 U CN 2009200601578U CN 200920060157 U CN200920060157 U CN 200920060157U CN 201483724 U CN201483724 U CN 201483724U
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- CN
- China
- Prior art keywords
- hot runner
- hot
- spray nozzle
- flow path
- nozzle
- Prior art date
- 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.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a hot runner spray nozzle for a injection mould hot runner component; the hot runner component comprises a concave hot runner fixing plate, and a hot runner plate which is matched with the hot runner fixing plate and is used for shunting; a cylinder plate is covered on the hot runner fixing plate; and the spray nozzle is arranged between a shunting plate and a step hole of the hot runner fixing plate. When in production, molten plastics enters a shunt through a heating main nozzle, and then enters the spray nozzle through the shunt, and is finally injected into a forming cavity through the spray nozzle; and after injection, air pressure drives a piston in the cylinder plate to drive a valve pin to advance and seal a plastics inlet of the spray nozzle. The spray nozzle is in a T shape; the periphery of a T-shaped top cover edge is flipped to form a skirt-shaped supporting leg; the skirt-shaped supporting leg is bent in an inner flgure-eights arc; and the spray nozzle supporting leg is arranged on a step of the step hole. Through the redesigning of the hot runner spray nozzle, under the premise of nearly not changing the structure of the hot runner component at all, the hot runner spray nozzle effectively solves the problem of plastics leakage caused by hot deformation.
Description
Technical field
The utility model relates to a kind of hot-runner nozzle, is meant the used shaped form hot-runner nozzle of a kind of injection mould hot flow path technology especially.
Background technology
The hot flow path technology is a kind of advanced technology that is applied to the plastic injection mold casting process, is a focus direction of plastics injection mould technical development.Compare with the cold runner mould, the advantage of hot runner mould is: it is long than restriction, forming thin-walled effectively to overcome stream of plastic; The loss of runner internal pressure is little, and fluidity of molten is good, and density is even, reduces the plastic distortion, improves the quality of products; Reduce cold runner and coagulate Liao ， Shrink short production cycle, improve utilization of materials, enhance productivity; The automaticity height; Accurately the control melt temperature is eliminated material degradation.Since coming out the forties in last century, the hot flow path technical development is very fast.Today, multiple different plastic raw materials can successfully utilize the hot flow path technology to process, and scope can be from polypropylene used in everyday and polyethylene to Merlon, glass fibre reinforced nylon and engineering plastics such as poly-; The weight of product also restrains greatly to 15 kilograms to 0.1 from little.The comparatively strict engineering plastics of multi-cavity mold, thin-walled property injecting products and processing technology also are more suitable for using TOP-TIP processing.In recent years, Yudo,
, Husky, Anole, the worlds such as Mold Masters, the Synventive hot flow path technology suppliers that name successively enter China, domesticly also emerge numerous TOP-TIP manufacturers, the hot flow path technology is used and is obtained popularizing rapidly.
At present, the multi-cavity mold of hot flow path structure leakage glue problem is very general, often because of flowing in the shunting board slot after the melt leakage in the hot flow path, causes mould damage and inactive.Do not consider the machining accuracy factor, cause the key factor that hot flow path leaks glue to be: flow distribution plate and hot mouth operating temperature are generally about 300 ℃ in the hot flow path, sometimes even reach more than 450 ℃, the height of flow distribution plate and hot mouth is aggregated in about 100mm, in working order down, vertical direction dilatancy amount is at 0.3mm～0.5mm, and thermal expansion stresses very easily causes each parts permanent deformation in the hot flow path, causes seal failure appearance leakage glue between each parts of hot flow path.
The utility model content
The problem that the utility model need solve is to cause each parts permanent deformation of hot flow path at flow distribution plate and hot mouth vertical direction thermal expansion distortion, and causes the leakage glue fault that sealing descends and occurs between each parts of hot flow path.
Designed a kind of hot-runner nozzle according to the above-mentioned problem that needs to solve, this nozzle is arranged on the hot flow path assembly, described hot flow path assembly comprises the hot flow path fixed head that is concave character type, in the cavity of this hot flow path fixed head, be provided with the shunting hot runner manifold, on this hot flow path fixed head, be coated with the air cylinder board hot flow path and connect air cylinder board, hot runner manifold and the hot flow path fixed head that is fastenedly connected mutually in a tubular form from top to bottom, and nozzle is arranged on the hot flow path exit on the hot flow path fixed head.Described nozzle is pressed solidly in the step hole shape hot flow path of hot flow path fixed head by hot runner manifold, in the mould production process, molten plastic enters runner by heating main nozzle, enter nozzle by runner again, piston drive needle retreats in the air pressure driving air cylinder board, the nozzle glue-feeder is opened, and molten plastic is injected into die cavity through nozzle; Air pressure drove in the air cylinder board piston and drives the needle valve nozzles glue-feeder that advances after injection was finished.This nozzle body is T-shaped, turns over formation shirt rim shape under the periphery on this T shape top cover edge and supports foot, and this formation shirt rim shape is supported foot and is interior splayed camber line bending, and this nozzle support foot is shelved on the step of stepped hole.
The utility model causes each parts permanent deformation of hot flow path at shunting with hot runner manifold and nozzle vertical direction thermal expansion distortion, the leakage glue fault that causes poorly sealed appearance between the hot flow path parts, employing is shirt rim shape arc line type structure with the support foot at nozzle body pressure-bearing position by the erect type structural design, nozzle body obtains high resiliency by the average tempering Technology for Heating Processing, adopts surface hardening by induction heating with high-frequency current to obtain case hardness and the anti-wear performance that needs to nozzle body sealing cover position.Thus, the hot flow path assembly can be offset by the distortion of nozzle support foot elastic compression in the sagging Nogata thermotropism of duty dilatancy, reduce shunting and conduct to thermal expansion stresses on the hot flow path fixed head with hot runner manifold and nozzle, avoid hot flow path component parts permanent deformation, solved leakage glue problem effectively.
Description of drawings
Accompanying drawing 1 is that the complete section master after the utility model hot flow path component assembling looks schematic diagram.
The specific embodiment
The utility model under the prerequisite that almost the hot flow path assembly is had no to change, has solved leakage glue problem by the redesign at hot-runner nozzle effectively.The utility model is described in further detail below in conjunction with accompanying drawing.
The hot-runner nozzle 5 of the utility model design is arranged on the hot flow path assembly, is one of requisite assembly of hot flow path assembly in the injection mold.Described hot flow path assembly comprises the hot flow path fixed head 1 that is concave character type, in the cavity of this hot flow path fixed head, be provided with shunting hot runner manifold 2, be coated with air cylinder board 3 on this hot flow path fixed head, described nozzle is arranged on the hot flow path exit on the hot flow path fixed head and is pressed solidly in the stepped hole of hot flow path fixed head by hot runner manifold.In the mould production process, molten plastic enters runner by heating main nozzle, enters nozzle by runner again, and piston drive needle retreats in the air pressure driving air cylinder board, and the nozzle glue-feeder is opened, and molten plastic is injected into die cavity through nozzle; Air pressure drove in the air cylinder board piston and drives the needle valve nozzles glue-feeder that advances after injection was finished.This nozzle body is T-shaped and along turning over formation shirt rim shape support foot 51 under the periphery on T shape top cover edge, this support foot is interior splayed camber line bending and is shelved on the step of stepped hole.
During enforcement, adopt surface hardening by induction heating with high-frequency current to obtain case hardness and the anti-wear performance that needs, relend and help the average tempering Technology for Heating Processing to make nozzle body obtain high resiliency nozzle body sealing cover position.
Claims (2)
1. hot-runner nozzle, this nozzle (5) is arranged on the hot flow path assembly, described hot flow path assembly comprises the hot flow path fixed head (1) that is concave character type, in the cavity of this hot flow path fixed head, be provided with shunting hot runner manifold (2), on this hot flow path fixed head, be coated with air cylinder board (3), described nozzle (5) is arranged on the hot flow path exit on the hot flow path fixed head, it is characterized in that described nozzle (5) is pressed solidly in the stepped hole (4) of hot flow path fixed head by hot runner manifold, this nozzle body is T-shaped, turn under the periphery on this T shape top cover edge and form shirt rim shape support foot (51), this supports sufficient camber line bending.
2. hot-runner nozzle according to claim 1 is characterized in that described nozzle support foot is shelved on the step of stepped hole, and this supports sufficient camber line bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200601578U CN201483724U (en) | 2009-07-09 | 2009-07-09 | Hot runner spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200601578U CN201483724U (en) | 2009-07-09 | 2009-07-09 | Hot runner spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201483724U true CN201483724U (en) | 2010-05-26 |
Family
ID=42422621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200601578U Expired - Fee Related CN201483724U (en) | 2009-07-09 | 2009-07-09 | Hot runner spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201483724U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913232A (en) * | 2010-07-16 | 2010-12-15 | 刘广发 | Position-adjusting structure of multi-point equidistant hot runner nozzle as well as adjusting method and application thereof |
| CN102120356A (en) * | 2011-02-21 | 2011-07-13 | 深圳创维－Rgb电子有限公司 | Hot runner system with glue leakage detecting function |
| CN105563758A (en) * | 2014-11-04 | 2016-05-11 | 丁裕釗 | Pre-assembled needle valve hot runner device |
-
2009
- 2009-07-09 CN CN2009200601578U patent/CN201483724U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913232A (en) * | 2010-07-16 | 2010-12-15 | 刘广发 | Position-adjusting structure of multi-point equidistant hot runner nozzle as well as adjusting method and application thereof |
| CN102120356A (en) * | 2011-02-21 | 2011-07-13 | 深圳创维－Rgb电子有限公司 | Hot runner system with glue leakage detecting function |
| CN102120356B (en) * | 2011-02-21 | 2013-05-29 | 深圳创维－Rgb电子有限公司 | Hot runner system with glue leakage detecting function |
| CN105563758A (en) * | 2014-11-04 | 2016-05-11 | 丁裕釗 | Pre-assembled needle valve hot runner device |
| CN105563758B (en) * | 2014-11-04 | 2017-11-17 | 丁裕釗 | Pre-assembled needle valve hot runner device |
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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: 20100526 Termination date: 20140709 |
|
| EXPY | Termination of patent right or utility model |