WO2007115969A1 - Nadelverschlussdüse - Google Patents
Nadelverschlussdüse Download PDFInfo
- Publication number
- WO2007115969A1 WO2007115969A1 PCT/EP2007/053171 EP2007053171W WO2007115969A1 WO 2007115969 A1 WO2007115969 A1 WO 2007115969A1 EP 2007053171 W EP2007053171 W EP 2007053171W WO 2007115969 A1 WO2007115969 A1 WO 2007115969A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- needle
- hot runner
- guide
- needle valve
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
- B29C2045/2855—Closure devices therefor consisting of needle valve systems intersecting the nozzle or runner channel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2735—Sprue channels ; Runner channels or runner nozzles for non-coaxial gates, e.g. for edge gates
Definitions
- the invention relates to a needle valve nozzle according to the preamble of claim 1.
- DE 10 2005 024 331 A1 describes a valve gate nozzle with a parallel flow channel of the nozzle and the direction of actuation of the valve needle.
- the Jap. Patent abstracts 07-251428 shows a construction with a locking needle arranged at an angle to the flow channel.
- shut-off needle running at an angle to the flow channel, since it is in operative connection with components of a hot runner injection molding tool at different temperatures or traverses them.
- a hot runner injection mold generally consists of components which form the mold cavity and are cooled by means of suitable media in FIG. 1 because of the desired short solidification time of the melt, and on the other hand of components which guide and guide the melt in FIG. 1 marked with W. Since, in contrast to the cooled components, the components that come into contact with the melt must not cool the melt, these components are heated.
- the invention solves this problem by the subject matter of claim 1 and the subject matter of claim 11.
- Figure 1 is a schematic representation of a cross section through a hot runner injection mold in the working position of a closed valve needle
- Figure 2 shows a detail according to detail A in Figure I 5 in the working position of an open valve pin
- FIG. 3 shows a sectional view of a section of a further hot runner injection molding workpiece with the closure needle closed
- FIG. 4 shows an enlarged detail from FIG. 3
- Figure 5 shows a section through a third hot runner injection mold in the working position of a closed valve needle
- FIG. 6 shows an enlarged detail from FIG. 5;
- FIG. 7 to 9 show various other perspective views, partly in section, of the exemplary embodiment from FIG. 5.
- FIG. 1 shows the essential components of a hot runner injection molding tool 1, consisting of the essential components mold plate 2 and mold core 3, which form a cavity (cavity) 4 which is only partially shown and which gives the molding 5 its shape in the solidified state.
- An injection molding which has a wall 6 running at an angle to the flow channel 7 of the hot runner nozzle 8.
- the melt enters the hot runner injection molding tool 1 either through a nozzle (not shown) connected to the injection molding machine into the hot runner nozzle 8 or is fed to the hot runner nozzle 8 via a hot runner distributor 10.
- the temperature distribution in the components of the hot runner injection molding tool shown in the drawing is such that the mold plate 2 represents the cooler component, relative to the hot runner nozzle 8, which is optionally penetrated by cooling channels 11.
- the hot runner nozzle 8, however, is heated. This heating is indicated schematically by heating coils 21.
- the closure needle 13 is connected at its end facing away from the hot runner nozzle 8 to an actuating device 12 which can be designed according to the known prior art and can move the closure needle 13 in the directions of the double arrow.
- the line 25 is intended to indicate that the actuating device 12 is connected to the hot runner injection mold by machine.
- the needle is shown in the closed position, wherein it dips into the wall 15 of the mold plate 2 and brings about a sealing seat 14.
- the molding 5 is thus separated from the flow channel 7 and the columns 22 to 24.
- FIG. 2 shows the detail A according to FIG. 1 with a closure needle 13 after a movement in the direction of arrow 19 in the open position, whereby a flow path 20 is formed, via which the mold cavity can be filled with melt.
- the closure needle 13 is held in position exclusively by the cooler mold plate 2.
- the guide and sealing sleeve 17 is seated in the cooler mold plate 2, which can advantageously be a screw connection.
- This guide and sealing bush takes on the temperature of the cooler mold plate and should therefore also be regarded as cool.
- a further bushing 18 can be seen at the free end of the closure needle. This serves as a heat-conducting sleeve and is not in contact with the sealing needle, but instead serves to conduct heat from the heated hot runner nozzle 8 as far as possible to the wall 15 in order to prevent disadvantageous cooling of the melt in the region of the wall 15 before it enters the mold cavity.
- the invention is not restricted to a specific angle between the closure needle 13 and the flow channel 7. It is therefore within the scope of the invention to make the angle larger and smaller than the illustrated angle of approximately 45 °, without departing from the inventive concept.
- FIGS. 3 and 4 show a further exemplary embodiment of the invention, in which the closure needle 13 is again in the closed position, in which it is held in position in the cooler mold plate 2 at two spaced-apart locations.
- the locking needle 13 and the longer compared to Fig. 1 guide and sealing sleeve 26 (needle guide) penetrate a through hole 27 ( Figures 3 and 4) or a gap 28 ( Figures 5 to 9) in the hot runner nozzle 8, the Ver - End needle is oriented at an angle ⁇ > 0 ° and preferably ⁇ 90 °, in particular ⁇ 30 to 60 °, preferably ⁇ 45 ° to the longitudinal axis X of the hot runner nozzle 8 or to the flow channel 7.
- the shut-off needle 13 penetrates the hot runner nozzle 8 completely at the angle ⁇ .
- a sealing seat 14 is also formed for the molding plate 2, in which the free end of the closure needle 13 is immersed in this position.
- the closure needle 13 is in turn held at its end facing away from the sealing seat 14 with respect to the closed position by a guide and sealing sleeve 26 in the cooler mold plate 2, the guide and sealing sleeve 26 here extending into the through bore 27 or Groove 28 of the hot runner nozzle 8 extends, preferably into the area of the further bushing 18, which serves as a heat-conducting sleeve.
- the needle guide or guide and sealing sleeve 26 can also extend to just before the bushing 18 or beyond the bushing 18, to be precise shortly before the sealing seat 14.
- the hot runner nozzle can also be provided with an obliquely introduced groove 28 (see FIGS. 5 to 9) instead of a through bore 27.
- the heat-conducting element used - bushing 18 - according to FIGS. 1 to 3 - in particular in the groove design of FIG. 5 - can also be designed as an integral part of the nozzle body 8 as a heat-conducting extension 29.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES07727643T ES2720610T3 (es) | 2006-08-18 | 2007-04-02 | Util de moldeo por inyección de canal caliente con tobera de válvula de aguja |
| CN2007800076494A CN101448619B (zh) | 2006-08-18 | 2007-04-02 | 针阀式喷嘴 |
| US12/293,229 US7824176B2 (en) | 2006-03-29 | 2007-04-02 | Needle valve nozzle |
| EP07727643.4A EP2004382B1 (de) | 2006-03-29 | 2007-04-02 | HEIßKANALSPRITZGUSSWERKZEUG MIT NADELVERSCHLUSSDÜSE |
| SI200732108T SI2004382T1 (sl) | 2006-08-18 | 2007-04-02 | Orodje za vroče-kanalno injekcijsko litje s šobo z zaporno iglo |
| JP2009503565A JP4961569B2 (ja) | 2006-08-18 | 2007-04-02 | ニードル弁ノズル |
| PL07727643T PL2004382T3 (pl) | 2006-03-29 | 2007-04-02 | Gorącokanałowa forma wtryskowa z dyszą zaworu iglicowego |
| CA2647049A CA2647049C (en) | 2006-03-29 | 2007-04-02 | Needle valve nozzle |
| DK07727643.4T DK2004382T3 (da) | 2006-08-18 | 2007-04-02 | Hot-runner sprøjtestøbningsværktøj med nåleventildyse |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202006005154 | 2006-03-29 | ||
| DE202006012676U DE202006012676U1 (de) | 2006-03-29 | 2006-08-18 | Nadelverschlussdüse |
| DE202006012676.7 | 2006-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007115969A1 true WO2007115969A1 (de) | 2007-10-18 |
Family
ID=38336390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2007/053171 Ceased WO2007115969A1 (de) | 2006-03-29 | 2007-04-02 | Nadelverschlussdüse |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7824176B2 (de) |
| EP (1) | EP2004382B1 (de) |
| CA (1) | CA2647049C (de) |
| DE (1) | DE202006012676U1 (de) |
| PL (1) | PL2004382T3 (de) |
| PT (1) | PT2004382T (de) |
| WO (1) | WO2007115969A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2998094A3 (de) * | 2014-08-28 | 2016-05-25 | Hans Schreck | Heisskanaldüse |
| WO2019197238A1 (de) | 2018-04-12 | 2019-10-17 | Ewikon Heisskanalsysteme Gmbh | Heisskanalvorrichtung |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008028577B4 (de) | 2007-06-20 | 2016-11-10 | Mold-Masters (2007) Limited | Eckenangussspritzgießvorrichtung |
| FI125179B (fi) * | 2009-03-26 | 2015-06-30 | Sandvik Mining & Constr Oy | Tiivistyssovitelma painenestekäyttöisen iskulaitteen pyörivässä ohjausventtiilissä |
| DE202009004786U1 (de) * | 2009-05-06 | 2010-09-23 | EWIKON Heißkanalsysteme GmbH & Co. KG | Heißkanaldüse zur Seitenanspritzung |
| GB201111872D0 (en) * | 2011-07-11 | 2011-08-24 | Schmitt Karl Heinz | Mould and method of moulding |
| CN107030987A (zh) * | 2016-12-30 | 2017-08-11 | 深圳市银宝山新科技股份有限公司 | 冷流道浇口针阀控制系统 |
| CN112706375B (zh) * | 2020-12-29 | 2025-07-18 | 来诺精密热流道科技(苏州)有限公司 | 针阀式热流道系统 |
| CN117021497B (zh) * | 2023-08-23 | 2026-01-06 | 武汉联塑精密模具有限公司 | 一种双通道热流道成型模具 |
| US12275175B1 (en) * | 2023-10-31 | 2025-04-15 | Moxietec, Llc | Shut-off nozzle for injection molding |
| CN120481209B (zh) * | 2025-07-18 | 2025-09-30 | 台州市黄岩聚丰机车有限公司 | 一种热流道多点注塑模具及注塑方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4595552A (en) * | 1984-12-13 | 1986-06-17 | Adolph Coors Company | Injection mold gate apparatus |
| JPH07144347A (ja) * | 1993-11-25 | 1995-06-06 | Matsushita Electric Works Ltd | 成形金型のホットランナーのゲートの開閉装置 |
| JPH07251428A (ja) * | 1994-03-15 | 1995-10-03 | Daicel Chem Ind Ltd | 射出成形用ホットランナー金型のゲート構造 |
| US20030068404A1 (en) * | 2001-09-28 | 2003-04-10 | Mitsubishi Materials Corporation | Injection molding die |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1248888B (it) * | 1991-06-28 | 1995-01-30 | Acrilux Spa | Ugello di iniezione per uno stampo |
| US5509797A (en) * | 1993-09-30 | 1996-04-23 | Nissei Plastic Industrial Co., Ltd. | Injection apparatus possessing pressure holding device |
| JP3028407B2 (ja) * | 1996-05-20 | 2000-04-04 | 株式会社吉野工業所 | 射出成形型用バルブゲート装置 |
| ATE447471T1 (de) | 2004-06-02 | 2009-11-15 | Mold Masters 2007 Ltd | Verschlussdüsenvorrichtung zum spritzgiessen mit einer ringförmigen strömung |
-
2006
- 2006-08-18 DE DE202006012676U patent/DE202006012676U1/de not_active Expired - Lifetime
-
2007
- 2007-04-02 PL PL07727643T patent/PL2004382T3/pl unknown
- 2007-04-02 WO PCT/EP2007/053171 patent/WO2007115969A1/de not_active Ceased
- 2007-04-02 EP EP07727643.4A patent/EP2004382B1/de active Active
- 2007-04-02 CA CA2647049A patent/CA2647049C/en active Active
- 2007-04-02 US US12/293,229 patent/US7824176B2/en active Active
- 2007-04-02 PT PT07727643T patent/PT2004382T/pt unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4595552A (en) * | 1984-12-13 | 1986-06-17 | Adolph Coors Company | Injection mold gate apparatus |
| JPH07144347A (ja) * | 1993-11-25 | 1995-06-06 | Matsushita Electric Works Ltd | 成形金型のホットランナーのゲートの開閉装置 |
| JPH07251428A (ja) * | 1994-03-15 | 1995-10-03 | Daicel Chem Ind Ltd | 射出成形用ホットランナー金型のゲート構造 |
| US20030068404A1 (en) * | 2001-09-28 | 2003-04-10 | Mitsubishi Materials Corporation | Injection molding die |
Non-Patent Citations (2)
| Title |
|---|
| "Ewikon - Heißkanalforum mit Produktpremiere", PLASTVERARBEITER, 22 May 2006 (2006-05-22), pages 1, XP002438954, Retrieved from the Internet <URL:http://www.plastverarbeiter.de/news/6b78fddafe9.html> [retrieved on 20070622] * |
| "Hotline 2 / 2006", KUNDENZEITSCHRIFT EWIKON, October 2006 (2006-10-01), pages 1 - 8, XP002438955, Retrieved from the Internet <URL:http://www.ewikon.de/download/prospekte/hotline_022006.pdf> [retrieved on 20070622] * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2998094A3 (de) * | 2014-08-28 | 2016-05-25 | Hans Schreck | Heisskanaldüse |
| WO2019197238A1 (de) | 2018-04-12 | 2019-10-17 | Ewikon Heisskanalsysteme Gmbh | Heisskanalvorrichtung |
| DE102018108659A1 (de) | 2018-04-12 | 2019-10-17 | EWIKON Heißkanalsysteme GmbH | Heißkanalvorrichtung |
| US11389998B2 (en) | 2018-04-12 | 2022-07-19 | Ewikon Heisskanalsysteme Gmbh | Hot channel device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090074906A1 (en) | 2009-03-19 |
| US7824176B2 (en) | 2010-11-02 |
| CA2647049C (en) | 2014-07-15 |
| CA2647049A1 (en) | 2007-10-18 |
| PT2004382T (pt) | 2019-05-29 |
| EP2004382A1 (de) | 2008-12-24 |
| EP2004382B1 (de) | 2019-02-06 |
| DE202006012676U1 (de) | 2007-08-09 |
| PL2004382T3 (pl) | 2019-10-31 |
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