CN203495224U - Self-locking nozzle for injection molding machine - Google Patents
Self-locking nozzle for injection molding machine Download PDFInfo
- Publication number
- CN203495224U CN203495224U CN201320521736.4U CN201320521736U CN203495224U CN 203495224 U CN203495224 U CN 203495224U CN 201320521736 U CN201320521736 U CN 201320521736U CN 203495224 U CN203495224 U CN 203495224U
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- China
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- injection molding
- molding machine
- nozzle
- valve
- locking
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides a self-locking nozzle for an injection molding machine. The self-locking nozzle for the injection molding machine comprises a nozzle body, wherein a melt flow channel is formed in the nozzle body; an ejection port which is communicated with the melt flow channel is formed in one end of the nozzle body; a needle valve for controlling the ejection port to block or separate is also arranged in the nozzle body. The self-locking nozzle is characterized in that the needle valve comprises a valve body, a valve core which can move axially along the valve body, and a valve head which is arranged at one end of the valve core; a drive device for driving the valve head to block or separate from the ejection port is arranged at the other end of the valve core. According to the self-locking nozzle of the injection molding machine disclosed by the utility model, the self-locking of the nozzle is realized by driving the valve head to block or separate from the ejection port by the drive device; in the steps of injecting and maintaining pressure, the ejection port is opened, and a melt flows through the ejection port from the melt flow channel and is injected into a mold cavity; in the steps of pre-plasticizing and not injecting, the ejection port is closed, and the melt cannot flow out from the ejection port, so that the problems of drooling and ejection port blockage are solved.
Description
Technical field
The utility model relates to a kind of injection apparatus, is specifically related to a kind of nozzle with self-locking structure that injection (mo(u)lding) machine uses that is suitable for, and belongs to powder metallurgical technology.
Background technology
Metal Injection Molding is the Novel powder metallurgy forming technique that modern plastics injection molding technology introducing field of powder metallurgy is formed.Its basic craft course is: first that pressed powder and organic adhesive is evenly mixing, after granulating, under heating plasticizing state, with injection (mo(u)lding) machine, inject curing molding in mould cavity, then by the method for chemistry or thermal decomposition, the bonding agent in one-tenth parison is removed, finally by sintering densification, obtain final products.Compare with traditional handicraft, have that precision is high, a feature such as even tissue, excellent performance, production cost are low, be particularly suitable for producing in enormous quantities the baroque constitutional detail of small-sized three-dimensional.
In process of injection molding, after completing an injection molding, injection moulding is for the second time when preformed or while injection, and the melt remaining in nozzle body can flow out at blowing loophole place, produce " salivation " phenomenon, " salivation " phenomenon can be brought bad impact to next product injection molding; The melt flowing out on the other hand runs into cold mould meeting cooling curing, and the problem that causes jet to stop up, must removal can carry out next product processing.
Utility model content
[0004] in order to solve the deficiency in background technology, the purpose of this utility model is to overcome the defect of background technology, provides a kind of novel structure, with the injection molding machine nozzle of self-locking structure.
For achieving the above object, the technical solution adopted in the utility model is: a kind of injection molding machine self-locking nozzle, comprise the inner nozzle body with melt flow channel, one end of described nozzle body is provided with the jet being communicated with described melt flow channel, in described nozzle body, be also provided with for control described jet shutoff or away from needle-valve, it is characterized in that: described needle-valve comprises valve body and can be along the axially movable spool of described valve body, and the valve head that is arranged on described spool one end, the other end of described spool is provided with and drives described valve head shutoff or away from the drive unit of described jet.
In preferred embodiment of the utility model, further comprise that described drive unit comprises to be arranged in described valve body and with the hinged push rod of the other end of described spool with drive described push rod along the axially movable cylinder of described valve body.
In preferred embodiment of the utility model, further comprise that described cylinder comprises cylinder barrel and telescopic cylinder arm, described cylinder arm one end is fixedly connected on described push rod, and described cylinder barrel is connected on described injection (mo(u)lding) machine.
In preferred embodiment of the utility model, further comprise that described valve head exposes described valve body and is arranged in described melt flow channel.
In preferred embodiment of the utility model, further comprise that being shaped as of described valve head is round table-like.
In preferred embodiment of the utility model, further comprise that described melt flow channel is positioned at described valve body around.
In preferred embodiment of the utility model, further comprise that the charging aperture place that is positioned at described melt flow channel of described nozzle body is provided with filter.
Usefulness of the present utility model is: a kind of injection molding machine self-locking nozzle of the present utility model, by drive unit, drive valve head shutoff or away from jet, realize the self-locking of nozzle, under injection and pressurize operation, open jet, melt is injected in die cavity through jet from melt flow channel, at preformed with not under injection process, close jet, melt can not flow out from jet, thereby has solved " salivation " problem in background technology, and jet blockage problem.Nozzle of the present utility model has advantages of novel structure, practicality, after use, can shorten molding cycle.
figure of description
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the cutaway view of a kind of injection molding machine self-locking nozzle of the present utility model.
In figure: 2, nozzle body, 4, melt flow channel, 6, jet, 8, needle-valve, 10, valve body, 12, spool, 14, valve head, 16, drive unit, 18, push rod, 20, cylinder, 22, cylinder barrel, 24, cylinder arm, 26, filter.
The specific embodiment
In order to make those skilled in the art person understand better the utility model scheme, and above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with embodiment and embodiment accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of injection molding machine self-locking nozzle, comprise the inner nozzle body 2 with melt flow channel 4, one end of nozzle body 2 is provided with the jet 6 being communicated with melt flow channel 4, in nozzle body 2, be also provided with for control jet 6 shutoff or away from needle-valve 8, wherein, needle-valve 8 comprises valve body 10 and can be along the axially movable spool 12 of valve body 10, and the valve head 14 that is arranged on spool 12 1 ends, valve head 14 exposes valve body 10 and is arranged in melt flow channel 4, and melt flow channel 4 is positioned at valve body 10 around, the other end of spool 12 is provided with and drives valve head 14 shutoff or away from the drive unit 16 of jet 6.By drive unit 16, drive valve head 14 shutoff or away from jet 6, realize the self-locking of nozzle, at injection and packing stage, drive valve head 14 away from jet 6, thereby open jet 6, melt is injected in die cavity through jet 6 from melt flow channel 4, in preformed and injection preparatory stage, drive valve head 14 shutoff jets 6, thereby close jet 6, melt can not flow out from jet 6, thereby solved " salivation " problem, and jet 6 blockage problem.
Concrete, drive unit 16 comprises and being arranged in valve body 10 and with the hinged push rod 18 of the other end of spool 12 with drive push rod 18 along the axially movable cylinder 20 of valve body 10, wherein, cylinder 20 comprises cylinder barrel 22 and telescopic cylinder arm 24, cylinder arm 24 one end are fixedly connected on push rod 18, cylinder barrel 24 is connected on injection (mo(u)lding) machine (not shown), the flexible push-pull effort that change into push rod 18 of cylinder arm 24 in cylinder barrel 22, push rod 18 is the axially-movable along valve body 10 with movable valve plug 12 under the active force of cylinder arm 24, the axially-movable of spool 12 conducts to valve head 14 by power, realize valve head 14 shutoff or away from jet 6.
For better shutoff jet 6, the shape of valve head 14 is designed to round table-like, large near a termination of spool 12, little near a termination of jet 6, shutoff is tight, blocks all fluids.
In order to prevent there is foreign matters from being blocked jet 6 in the fluid of molten condition, at the charging aperture place that is positioned at melt flow channel 4 of nozzle body 2, be provided with filter 26, filter 26 can, from charging aperture filtering foreign matter, prevent foreign matters from being blocked jet.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify and all should be equivalent substitute mode, within being included in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (7)
1. an injection molding machine self-locking nozzle, comprise the inner nozzle body with melt flow channel, one end of described nozzle body is provided with the jet being communicated with described melt flow channel, in described nozzle body, be also provided with for control described jet shutoff or away from needle-valve, it is characterized in that: described needle-valve comprises valve body and can be along the axially movable spool of described valve body, and the valve head that is arranged on described spool one end, the other end of described spool is provided with and drives described valve head shutoff or away from the drive unit of described jet.
2. a kind of injection molding machine self-locking nozzle according to claim 1, is characterized in that: described drive unit comprises and being arranged in described valve body and with the hinged push rod of the other end of described spool with drive described push rod along the axially movable cylinder of described valve body.
3. a kind of injection molding machine self-locking nozzle according to claim 2, it is characterized in that: described cylinder comprises cylinder barrel and telescopic cylinder arm, described cylinder arm one end is fixedly connected on described push rod, and described cylinder barrel is connected on described injection (mo(u)lding) machine.
4. a kind of injection molding machine self-locking nozzle according to claim 1, is characterized in that: described valve head exposes described valve body and is arranged in described melt flow channel.
5. a kind of injection molding machine self-locking nozzle according to claim 4, is characterized in that: being shaped as of described valve head is round table-like.
6. a kind of injection molding machine self-locking nozzle according to claim 4, is characterized in that: described melt flow channel is positioned at described valve body around.
7. a kind of injection molding machine self-locking nozzle according to claim 1, is characterized in that: the charging aperture place that is positioned at described melt flow channel of described nozzle body is provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521736.4U CN203495224U (en) | 2013-08-26 | 2013-08-26 | Self-locking nozzle for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521736.4U CN203495224U (en) | 2013-08-26 | 2013-08-26 | Self-locking nozzle for injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203495224U true CN203495224U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320521736.4U Expired - Fee Related CN203495224U (en) | 2013-08-26 | 2013-08-26 | Self-locking nozzle for injection molding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203495224U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464753A (en) * | 2013-08-26 | 2013-12-25 | 苏州米莫金属科技有限公司 | Self-locking-type nozzle for injection moulding machine |
| CN104107913A (en) * | 2014-07-25 | 2014-10-22 | 株洲华宏机械制造有限公司 | Oil nozzle matching part needle valve body and manufacturing method thereof |
| CN104526965A (en) * | 2014-12-17 | 2015-04-22 | 湖南鑫高自动化设备有限公司 | Injection nozzle for injection molding devices and injection method thereof |
-
2013
- 2013-08-26 CN CN201320521736.4U patent/CN203495224U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464753A (en) * | 2013-08-26 | 2013-12-25 | 苏州米莫金属科技有限公司 | Self-locking-type nozzle for injection moulding machine |
| CN104107913A (en) * | 2014-07-25 | 2014-10-22 | 株洲华宏机械制造有限公司 | Oil nozzle matching part needle valve body and manufacturing method thereof |
| CN104107913B (en) * | 2014-07-25 | 2016-02-10 | 株洲华宏机械制造有限公司 | A kind of needle valve of fuel spray nozzle coupling part body itself and manufacture method |
| CN104526965A (en) * | 2014-12-17 | 2015-04-22 | 湖南鑫高自动化设备有限公司 | Injection nozzle for injection molding devices and injection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20160826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |