CN103464752A - Injection moulding nozzle with function of avoiding cold material - Google Patents
Injection moulding nozzle with function of avoiding cold material Download PDFInfo
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- CN103464752A CN103464752A CN2013103746599A CN201310374659A CN103464752A CN 103464752 A CN103464752 A CN 103464752A CN 2013103746599 A CN2013103746599 A CN 2013103746599A CN 201310374659 A CN201310374659 A CN 201310374659A CN 103464752 A CN103464752 A CN 103464752A
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Abstract
The invention provides an injection moulding nozzle with a function of avoiding cold material. The injection moulding nozzle comprises a nozzle body and a melt runner passing from one end to the other end of the nozzle body. The melt runner includes a feed segment and an injection segment in the flowing direction of melt. The injection moulding nozzle is characterized by further comprising a heating segment between the feed segment and the injection segment. The part, corresponding to the heating segment in position, of the outer wall of the nozzle body is provided with a heating device. The heating segment is added into the melt runner of the injection moulding nozzle, the heating device is disposed at the part, corresponding to the heating segment, of the outer wall of the nozzle body and heats up the melt flowing by the heating segment, and accordingly the problem that cold material occurs inside the nozzle due to cooling of a mould is solved.
Description
Technical field
The present invention relates to a kind of injection apparatus, be specifically related to can prevent the interior injection moulding nozzle that produces cold burden of nozzle after a kind of the use, belong 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: at first that pressed powder and organic adhesive is evenly mixing, inject curing molding in mould cavity with injection (mo(u)lding) machine under the heating plasticizing state after granulating, then by the method for chemistry or thermal decomposition, will become the bonding agent in parison to remove, finally by sintering densification, obtain final products.Compare with traditional handicraft, have that precision is high, characteristics 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.
Nozzle is mounted in the barrel parts foremost of injection (mo(u)lding) machine, for the material body in molten condition is injected in die cavity by barrel, sets up the pressure of raising 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.
Summary of the invention
In order to solve the deficiency in background technology, the object of the invention is to overcome the defect of background technology, provide 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 used in the present invention 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 an 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 a preferred embodiment of the present invention, further comprise that described heater is Electrothermal ring.
In a preferred embodiment of the present invention, the length that further comprises described bringing-up section is 5-12mm.
In a preferred embodiment of the present invention, the length that further comprises described bringing-up section is three times of described jet segment length.
In a preferred embodiment of the present invention, further comprise that described melt flow channel is positioned at the cylindrical shape that is shaped as of described bringing-up section.
In a preferred embodiment of the present invention, further comprise that the runner radius that described melt flow channel is positioned at described bringing-up section is 3-6mm.
In a preferred embodiment of the present invention, further comprise that described melt flow channel is positioned at described feed zone place and is provided with filter.
Usefulness of the present invention is: a kind of injection molded nozzle that prevents cold burden of the present invention, 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 has caused the problem that produces cold burden in nozzle because of mold cools down.
figure of description
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is a kind of cutaway view that prevents the injection molded nozzle of cold burden of the present invention.
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 present invention program, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with embodiment and embodiment accompanying drawing, the present invention is further detailed explanation.
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 an 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 preferably is 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 arranged 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, cause the problem that produces cold burden in nozzle because of mold cools down.
For melt temperature and the pressure of the nozzle of the present invention 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 design of this structure and parameter makes the product property indices that uses nozzle of the present invention to form out good.
For the jet 16 of foreign matters from being blocked jet segment 10 is arranged in the fluid that prevents molten condition, be positioned at feed zone 6 places in melt flow channel 4 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 present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify and all should be equivalent substitute mode, within being included in protection scope of the present invention.Therefore, protection scope of the present invention 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 an 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, it 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, it 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, it 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, it 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, it 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, it 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 |
|---|---|---|---|
| CN2013103746599A CN103464752A (en) | 2013-08-26 | 2013-08-26 | Injection moulding nozzle with function of avoiding cold material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103746599A CN103464752A (en) | 2013-08-26 | 2013-08-26 | Injection moulding nozzle with function of avoiding cold material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103464752A true CN103464752A (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013103746599A Pending CN103464752A (en) | 2013-08-26 | 2013-08-26 | Injection moulding nozzle with function of avoiding cold material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878930A (en) * | 2014-03-25 | 2014-06-25 | 苏州益群模具有限公司 | Novel auto injection nozzle |
| CN105396709A (en) * | 2015-12-09 | 2016-03-16 | 荣昌精密机械(苏州)有限公司 | Filter type spray nozzle for injection molding machine |
| CN105415582A (en) * | 2015-12-15 | 2016-03-23 | 荣昌精密机械(苏州)有限公司 | Filtering nozzle for injection molding machine with cleaning device |
| CN113172835A (en) * | 2021-02-05 | 2021-07-27 | 黄爱松 | Injection molding blockage-sensing anti-cold-setting nozzle |
| CN115253331A (en) * | 2022-07-25 | 2022-11-01 | 季华实验室 | Combined anti-blocking flow guide device and powder atomization equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10249892A (en) * | 1997-03-07 | 1998-09-22 | Molex Inc | Electric heating nozzle |
| JP2001079653A (en) * | 1999-09-13 | 2001-03-27 | Japan Steel Works Ltd:The | Injection molding machine and nozzle temperature controller |
| CN102343645A (en) * | 2010-08-03 | 2012-02-08 | 奥托门纳创新有限公司 | Injection moulding nozzle |
| CN103029273A (en) * | 2012-12-07 | 2013-04-10 | 宁波新海太塑料机械有限公司 | Injection part of injection molding machine |
| CN203495225U (en) * | 2013-08-26 | 2014-03-26 | 苏州米莫金属科技有限公司 | Injection forming spray nozzle capable of preventing cold material generation |
-
2013
- 2013-08-26 CN CN2013103746599A patent/CN103464752A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10249892A (en) * | 1997-03-07 | 1998-09-22 | Molex Inc | Electric heating nozzle |
| JP2001079653A (en) * | 1999-09-13 | 2001-03-27 | Japan Steel Works Ltd:The | Injection molding machine and nozzle temperature controller |
| CN102343645A (en) * | 2010-08-03 | 2012-02-08 | 奥托门纳创新有限公司 | Injection moulding nozzle |
| CN103029273A (en) * | 2012-12-07 | 2013-04-10 | 宁波新海太塑料机械有限公司 | Injection part of injection molding machine |
| CN203495225U (en) * | 2013-08-26 | 2014-03-26 | 苏州米莫金属科技有限公司 | Injection forming spray nozzle capable of preventing cold material generation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878930A (en) * | 2014-03-25 | 2014-06-25 | 苏州益群模具有限公司 | Novel auto injection nozzle |
| CN105396709A (en) * | 2015-12-09 | 2016-03-16 | 荣昌精密机械(苏州)有限公司 | Filter type spray nozzle for injection molding machine |
| CN105415582A (en) * | 2015-12-15 | 2016-03-23 | 荣昌精密机械(苏州)有限公司 | Filtering nozzle for injection molding machine with cleaning device |
| CN105415582B (en) * | 2015-12-15 | 2017-09-12 | 荣昌精密机械(苏州)有限公司 | A kind of filter-type nozzle of the injection machine with cleaning device |
| CN113172835A (en) * | 2021-02-05 | 2021-07-27 | 黄爱松 | Injection molding blockage-sensing anti-cold-setting nozzle |
| CN115253331A (en) * | 2022-07-25 | 2022-11-01 | 季华实验室 | Combined anti-blocking flow guide device and powder atomization equipment |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |