CN203495225U - Injection forming spray nozzle capable of preventing cold material generation - Google Patents
Injection forming spray nozzle capable of preventing cold material generation Download PDFInfo
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- CN203495225U CN203495225U CN201320521788.1U CN201320521788U CN203495225U CN 203495225 U CN203495225 U CN 203495225U CN 201320521788 U CN201320521788 U CN 201320521788U CN 203495225 U CN203495225 U CN 203495225U
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- spray nozzle
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Abstract
The utility model provides an injection forming spray nozzle capable of preventing cold material generation. The spray nozzle comprises a spray nozzle body and a flux flow passage, wherein the flux flow passage penetrates to the other end of the spray nozzle body from one end of the spray nozzle body, and the flux flow passage comprises a feeding section and a spraying section in the flux flowing direction. The injection forming spray nozzle is characterized in that the flux flow passage also comprises a heating section positioned between the feeding section and the spraying section, and in addition, the spray nozzle body is provided with a heater on an outer wall in a position corresponding to the heating section. The injection forming spray nozzle capable of preventing cold material generation provided by the utility model has the advantages that the heating section is added in the flux flow passage, in addition, the heating device is the position corresponding to the heating section, the heating device heats flux materials flowing through the heating section, and the problem of cold material generation of the spray nozzle caused by mold cooling is solved.
Description
Technical field
The utility model relates to a kind of injection apparatus, is specifically related to can prevent the interior injection moulding nozzle that produces cold burden of nozzle after a kind of use, 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.
The barrel that nozzle is mounted in injection (mo(u)lding) machine parts foremost for the material body in molten condition is injected in die cavity by barrel, are set up and are improved the pressure of melt and the effect of injection rate in injection molding technique.Nozzle is in order to reach this effect, need to be designed to the structure that bore is little, passage is narrow, due to when injecting, what nozzle need to fit tightly with mould is connected, the nozzle that bore is little is easy to by mold cools down, makes the material of its jet segment chill, causes injection temperation defective, affect the mechanical property of finished product, serious even can stop up feed nozzle.
Utility model content
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 simple in structure, can prevent the injection molded nozzle of cold burden after use.
For achieving the above object, the technical solution adopted in the utility model is: a kind of injection molded nozzle that prevents cold burden, described nozzle comprises nozzle body and wears the melt flow channel to its other end from one end of described nozzle body, described melt flow channel comprises feed zone, jet segment along the flow direction of melt, it is characterized in that: described melt flow channel also comprises the bringing-up section between described feed zone and jet segment, and the outer wall of described nozzle body in the position of the described bringing-up section of correspondence is provided with heater.
In preferred embodiment of the utility model, further comprise that described heater is Electrothermal ring.
In preferred embodiment of the utility model, the length that further comprises described bringing-up section is 5-12mm.
In preferred embodiment of the utility model, the length that further comprises described bringing-up section is three times of described jet segment length.
In preferred embodiment of the utility model, further comprise that described melt flow channel is positioned at the cylindrical shape that is shaped as of described bringing-up section.
In preferred embodiment of the utility model, further comprise that the runner radius that described melt flow channel is positioned at described bringing-up section is 3-6mm.
In preferred embodiment of the utility model, further comprise that described melt flow channel is positioned at described feed zone place and is provided with filter.
Usefulness of the present utility model is: a kind of injection molded nozzle that prevents cold burden of the present utility model, by set up bringing-up section in melt flow channel, and on the outer wall of the position of the corresponding bringing-up section of nozzle body, heater is set, heater is given the melt heating of the bringing-up section of flowing through, and has solved and because of mold cools down, has caused the problem that produces cold burden in nozzle.
figure of description
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is a kind of cutaway view that prevents the injection molded nozzle of cold burden of the present utility model.
In figure: 2, nozzle body, 4, melt flow channel, 6, feed zone, 8, jet segment, 10, bringing-up section, 12, heater, 14, filter, 16, jet.
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 molded nozzle that prevents cold burden, described nozzle comprises nozzle body 2 and wears the melt flow channel 4 to its other end from one end of nozzle body 2, melt flow channel 4 comprises feed zone 6 along the flow direction of melt, bringing-up section 10, jet segment 8, and the outer wall of nozzle body 2 in the position of corresponding bringing-up section 10 is provided with heater 12, heater 12 is preferably arranged on the Electrothermal ring on nozzle body 2 outer walls, by set up bringing-up section 10 in melt flow channel 4, the corresponding heater arranging 12 is given the melt heating of the bringing-up section 10 of flowing through, give the effect of an insulation of melt, make the melt can be by mold cools down, also with regard to having solved, because of mold cools down, cause the problem that produces cold burden in nozzle.
For melt temperature and the pressure of the utility model nozzle that makes to flow through reaches optimum value, through test repeatedly, draw the following concrete structure about bringing-up section 10 and parameter: the length of bringing-up section 10 is 5-12mm, and the length of bringing-up section 10 is three times of jet segment 8 length, guarantee enough heating, melt flow channel 4 is positioned at the cylindrical shape that is shaped as of bringing-up section 10, and cylindrical shape is heated evenly, and the runner radius that melt flow channel 4 is positioned at bringing-up section 10 is 3-6mm, guarantees the expulsion pressure of jet segment 8.The product property indices that the design of this structure and parameter makes to use nozzle of the present utility model to form out is good.
In order to prevent from having in the fluid of molten condition the jet 16 of foreign matters from being blocked jet segment 10, in melt flow channel 4, be positioned at feed zone 6 places and be provided with filter 14, filter 14 can, from the charging aperture filtering foreign matter of feed zone 6, prevent the jet 16 of foreign matters from being blocked jet segment 10.
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 molded nozzle that prevents cold burden, described nozzle comprises nozzle body and wears the melt flow channel to its other end from one end of described nozzle body, described melt flow channel comprises feed zone, jet segment along the flow direction of melt, it is characterized in that: described melt flow channel also comprises the bringing-up section between described feed zone and jet segment, and the outer wall of described nozzle body in the position of the described bringing-up section of correspondence is provided with heater.
2. a kind of injection molded nozzle that prevents cold burden according to claim 1, is characterized in that: described heater is Electrothermal ring.
3. a kind of injection molded nozzle that prevents cold burden according to claim 1 and 2, is characterized in that: the length of described bringing-up section is 5-12mm.
4. a kind of injection molded nozzle that prevents cold burden according to claim 3, is characterized in that: the length of described bringing-up section is three times of described jet segment length.
5. a kind of injection molded nozzle that prevents cold burden according to claim 3, is characterized in that: described melt flow channel is positioned at the cylindrical shape that is shaped as of described bringing-up section.
6. a kind of injection molded nozzle that prevents cold burden according to claim 5, is characterized in that: the runner radius that described melt flow channel is positioned at described bringing-up section is 3-6mm.
7. a kind of injection molded nozzle that prevents cold burden according to claim 1, is characterized in that: described melt flow channel is positioned at described feed zone place and is provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521788.1U CN203495225U (en) | 2013-08-26 | 2013-08-26 | Injection forming spray nozzle capable of preventing cold material generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521788.1U CN203495225U (en) | 2013-08-26 | 2013-08-26 | Injection forming spray nozzle capable of preventing cold material generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203495225U true CN203495225U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320521788.1U Expired - Fee Related CN203495225U (en) | 2013-08-26 | 2013-08-26 | Injection forming spray nozzle capable of preventing cold material generation |
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| CN (1) | CN203495225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464752A (en) * | 2013-08-26 | 2013-12-25 | 苏州米莫金属科技有限公司 | Injection moulding nozzle with function of avoiding cold material |
-
2013
- 2013-08-26 CN CN201320521788.1U patent/CN203495225U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464752A (en) * | 2013-08-26 | 2013-12-25 | 苏州米莫金属科技有限公司 | Injection moulding nozzle with function of avoiding cold material |
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| 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 |