CN103600079A - Hot runner nozzle capable of transferring heat uniformly - Google Patents
Hot runner nozzle capable of transferring heat uniformly Download PDFInfo
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- CN103600079A CN103600079A CN201310414436.0A CN201310414436A CN103600079A CN 103600079 A CN103600079 A CN 103600079A CN 201310414436 A CN201310414436 A CN 201310414436A CN 103600079 A CN103600079 A CN 103600079A
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- nozzle
- heat
- heat pipe
- nozzle body
- heat transfer
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Abstract
The invention provides a hot runner nozzle capable of transferring heat uniformly. The nozzle comprises a nozzle body and a melt runner penetrating from one end of the nozzle body to the other end of the nozzle body, and the melt runner sequentially comprises a feeding section and a spraying section along the flow direction of melt. The nozzle is characterized in that the inside of the nozzle body, which is close to the outer wall of the melt runner, is provided with a heat pipe, and the outer wall of the nozzle body is provided with a heating device. According to the hot runner nozzle capable of transferring heat uniformly, the outer wall of the melt runner is provided with the heat pipe, the heat pipe serves as a heat conducting part, heat absorbed from the heating device is rapidly and uniformly conducted to the feeding portion and the spraying section of the nozzle body through phase changes of low-boiling point liquid in a negative pressure state inside the heat pipe, and compared with a traditional mode which achieves heating merely through a heating device, the hot runner nozzle capable of transferring heat uniformly has the advantages of being more uniform in heat transfer, good in temperature uniformity, high in warming speed and high in heat transfer efficiency.
Description
Technical field
The present invention relates to a kind of hot flow path injection apparatus, relate in particular to the uniform hot-runner nozzle of a kind of heat transfer, be applicable to use in injection (mo(u)lding) machine, belong to powder metallurgy field of mechanical technique.
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, also be the parts that directly contact with ice-cold mould, for by barrel, the material body in molten condition is injected in die cavity, when injection, what nozzle need to fit tightly with mould is connected, ice-cold mould be easy to make the to flow through melt temperature of nozzle reduces, cause injection temperation defective, affect the mechanical property of finished product, in order to address this problem, in nozzle, embed electric heater, such as, heating collar, heating rod, electric hot plates etc. heat to nozzle, guarantee injection temperation, still there is the inhomogeneous shortcoming of conducting heat in this method, be in particular in: the easy hot-spot of electric heater, regional temperature near electric heater is higher, electric heater heat output in the longitudinal direction is simultaneously inhomogeneous.
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 that a kind of uniform temperature is good, quick heating, the uniform hot-runner nozzle of heat transfer.
For achieving the above object, the technical solution used in the present invention is: the uniform hot-runner nozzle of a kind of heat transfer, 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 and jet segment successively along the flow direction of melt, it is characterized in that: in described nozzle body, near described melt flow channel outer wall place, be provided with heat pipe, the outer wall of described nozzle body is provided with heater.
In a preferred embodiment of the present invention, further comprise that described heat pipe extends to described jet segment from described feed zone always.
In a preferred embodiment of the present invention, further comprise that described heat pipe comprises inner evaporator section and the condensation segment that air-flow and liquid flow back to road that form mutually, described evaporator section is fixed near described feed zone, and described condensation segment is fixed near described jet segment.
In a preferred embodiment of the present invention, further comprise that described heater is to be coated on the resistance heated circle of described nozzle body on the outer wall of the position of the described evaporator section of correspondence.
In a preferred embodiment of the present invention, further comprise that working solution in described heat pipe is high-purity water, ammoniacal liquor, acetone one or both mixed solution wherein.
In a preferred embodiment of the present invention, further comprise that described heat pipe is copper heat pipe.
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: the uniform hot-runner nozzle of a kind of heat transfer of the present invention, on the outer wall of melt flow channel, heat pipe is set, adopt heat pipe as heat-conducting piece, phase transformation by the low-boiling point liquid under negative pressure state in heat pipe conducts to the heat absorbing from heater feed zone and the jet segment of nozzle body rapidly and uniformly, with respect to traditional only rely on heater heating have advantages of heat transfer more evenly, good, the quick heating of uniform temperature, heat transfer efficiency be high.
accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the basic block diagram of heat pipe of the present invention;
Fig. 2 is the structural representation of a kind of uniform hot-runner nozzle that conducts heat of the present invention.
In figure: 2, nozzle body, 4, melt canal, 6, feed zone, 8, jet segment, 10, heat pipe, 12, heater, 14, evaporator section, 16, condensation segment, 18, filter, 102, housing, 104, liquid-sucking core, 106, working solution.
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 1-2, the uniform hot-runner nozzle of a kind of heat transfer, 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 and jet segment 8 successively along the flow direction of melt, melt is injected into die cavity from jet segment 8, wherein, the outer wall of nozzle body 2 is provided with heater 12, heater 12 of the present invention is preferably coated on the resistance heated circle of nozzle body 2 on the outer wall of the position of corresponding evaporator section 14, nozzle body 2 is interior is provided with heat pipe 10 near melt flow channel 4 outer wall places, and heat pipe 10 is a kind of products that utilize absorb/distribute heat of phase transition process, mainly by shell 102, be contained in the capillary wick 104 of shell 102 inside, and the working solution 106 that is filled in the interior infiltration liquid-sucking core 104 of shell 102 forms, temperature while considering nozzle operation, the preferred working solution 106 of the present invention is high-purity water, ammoniacal liquor, acetone one or both mixed solution wherein, after filling, take out negative-pressure sealing.
In order to reach best heat-transfer effect, heat pipe 10 of the present invention extends to jet segment 8 from feed zone 6 always, and preferably heat pipe 10 is copper heat pipe, and copper is large than the thermal conductivity factor of aluminium, low than silver-colored cost.
In order to prevent the jet of foreign matters from being blocked jet segment 10 in the fluid of molten condition, in melt flow channel 4, be positioned at feed zone 6 places and be provided with filter 18, filter 18 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. the uniform hot-runner nozzle that conducts heat, 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 and jet segment successively along the flow direction of melt, it is characterized in that: in described nozzle body, near described melt flow channel outer wall place, be provided with heat pipe, the outer wall of described nozzle body is provided with heater.
2. the uniform hot-runner nozzle of a kind of heat transfer according to claim 1, is characterized in that: described heat pipe extends to described jet segment from described feed zone always.
3. the uniform hot-runner nozzle of a kind of heat transfer according to claim 2, it is characterized in that: described heat pipe comprises inner evaporator section and the condensation segment that air-flow and liquid flow back to road that form mutually, described evaporator section is fixed near described feed zone, and described condensation segment is fixed near described jet segment.
4. the uniform hot-runner nozzle of a kind of heat transfer according to claim 3, is characterized in that: described heater is to be coated on the resistance heated circle of described nozzle body on the outer wall of the position of the described evaporator section of correspondence.
5. the uniform hot-runner nozzle of a kind of heat transfer according to claim 2, is characterized in that: the working solution in described heat pipe is high-purity water, ammoniacal liquor, acetone one or both mixed solution wherein.
6. the uniform hot-runner nozzle of a kind of heat transfer according to claim 5, is characterized in that: described heat pipe is copper heat pipe.
7. the uniform hot-runner nozzle of a kind of heat transfer 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 |
|---|---|---|---|
| CN201310414436.0A CN103600079B (en) | 2013-09-12 | 2013-09-12 | A kind of uniform hot-runner nozzle that conducts heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414436.0A CN103600079B (en) | 2013-09-12 | 2013-09-12 | A kind of uniform hot-runner nozzle that conducts heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103600079A true CN103600079A (en) | 2014-02-26 |
| CN103600079B CN103600079B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310414436.0A Active CN103600079B (en) | 2013-09-12 | 2013-09-12 | A kind of uniform hot-runner nozzle that conducts heat |
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Cited By (2)
| 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 |
| CN108239894A (en) * | 2016-12-27 | 2018-07-03 | 林紫绮 | Samming extrusion forming system and its samming roller structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116427A (en) * | 1983-11-30 | 1985-06-22 | Matsushita Electric Works Ltd | Extrusion screw for resin in molding machine |
| US20020102322A1 (en) * | 2001-01-16 | 2002-08-01 | Herbert Gunther | Hot runner nozzle |
| US20040071814A1 (en) * | 2000-06-16 | 2004-04-15 | Denis Babin | Thermally balanced hot runner nozzle |
| CN101619948A (en) * | 2008-07-02 | 2010-01-06 | 英业达股份有限公司 | Loop-type heat pipe |
| CN102145530A (en) * | 2010-11-15 | 2011-08-10 | 上海胜迪实业有限公司 | Hot runner system and gas spring type nozzle thereof |
| CN202225376U (en) * | 2011-07-26 | 2012-05-23 | 郅诚 | Injection molding nozzle with functions of heating, filtering and self-locking |
| CN203635918U (en) * | 2013-09-12 | 2014-06-11 | 苏州米莫金属科技有限公司 | Hot runner nozzle with uniform heat transmission |
-
2013
- 2013-09-12 CN CN201310414436.0A patent/CN103600079B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116427A (en) * | 1983-11-30 | 1985-06-22 | Matsushita Electric Works Ltd | Extrusion screw for resin in molding machine |
| US20040071814A1 (en) * | 2000-06-16 | 2004-04-15 | Denis Babin | Thermally balanced hot runner nozzle |
| US20020102322A1 (en) * | 2001-01-16 | 2002-08-01 | Herbert Gunther | Hot runner nozzle |
| CN101619948A (en) * | 2008-07-02 | 2010-01-06 | 英业达股份有限公司 | Loop-type heat pipe |
| CN102145530A (en) * | 2010-11-15 | 2011-08-10 | 上海胜迪实业有限公司 | Hot runner system and gas spring type nozzle thereof |
| CN202225376U (en) * | 2011-07-26 | 2012-05-23 | 郅诚 | Injection molding nozzle with functions of heating, filtering and self-locking |
| CN203635918U (en) * | 2013-09-12 | 2014-06-11 | 苏州米莫金属科技有限公司 | Hot runner nozzle with uniform heat transmission |
Non-Patent Citations (1)
| Title |
|---|
| 陈剑玲等: ""热管技术原理及其在热流道模具中的应用"", 《工程塑料应用》, vol. 32, no. 7, 31 July 2004 (2004-07-31), pages 51 - 53 * |
Cited By (3)
| 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 |
| CN108239894A (en) * | 2016-12-27 | 2018-07-03 | 林紫绮 | Samming extrusion forming system and its samming roller structure |
| CN108239894B (en) * | 2016-12-27 | 2020-08-11 | 林紫绮 | Uniform temperature extrusion molding system and uniform temperature roller structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103600079B (en) | 2016-08-31 |
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Address after: 215216 Tuen Mun village, Tongli Town, Wujiang District, Jiangsu, Suzhou Patentee after: Jiangsu mimault metal Limited by Share Ltd Address before: 215216 Tuen Mun village, Tongli Town, Wujiang District, Jiangsu, Suzhou Patentee before: Suzhou Mimo Metal Technology Co., Ltd. |
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