CN201511508U - Double-cylinder needle valve type heat flow passage - Google Patents
Double-cylinder needle valve type heat flow passage Download PDFInfo
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- CN201511508U CN201511508U CN2009202053135U CN200920205313U CN201511508U CN 201511508 U CN201511508 U CN 201511508U CN 2009202053135 U CN2009202053135 U CN 2009202053135U CN 200920205313 U CN200920205313 U CN 200920205313U CN 201511508 U CN201511508 U CN 201511508U
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- flow passage
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Abstract
The utility model discloses a double-cylinder needle valve type heat flow passage which comprises a stacking template and a heat flow passage backing board, which are connected up and down, wherein a cylinder is arranged in the stacking template, a heat flow passage plate is arranged in the middle of the heat flow passage backing plate, the upper portion and the lower portion of the heat flow passage plate are respectively matched with a valve needle sleeve and a heat nozzle, a sprue is arranged on the lower portion of the heat nozzle, a valve needle respectively downwards penetrates the stacking template, the valve needle sleeve, the heat passage plate and the heat nozzle from the cylinder, and then is matched with the sprue on the lower portion, the cylinder is provided with I-shaped inner cavities, the upper cavity and the lower cavity are respectively an upper cylinder and a lower cylinder, an I-shaped double piston is matched in the cylinder, and the upper end of the valve needle is fixedly connected on the center axial hole of the double piston. The double-cylinder needle valve type heat flow passage adopts double cylinders to replace an existing single-cylinder structure, the air pressure is two times larger than the single cylinder, an O-shaped sealing ring is arranged in the cylinder, which guarantees the sealing effect, and enables the movement effect of the valve needle to be more excellent, and the interchangeability of accessories is excellent, the use operation and maintenance are both convenient, and the technical problem of poor sealing of the valve needle is solved for meeting the requirement of high quality of products.
Description
Technical field
The utility model relates to a kind of injection mold hot flow path, relates in particular to the needle valve hot flow path.
Background technology
In the hot flow path technology was used, needle valve system (VALVE GATING) was one of TOP-TIP very general during the hot flow path technology is used.This system is by adopting needle (VALVE PIN) under the effect of needle control device, opens or closes cast gate at preset time in the mode of mechanical movement.As shown in Figure 1, this control device is mainly by cylinder, and piston, needle 7 (spool) and needle overlap 8 and form; Last code mask 13 bottoms connect hot flow path backing plate 11, fix a hot runner manifold 12 that cooperates with hot mouth 9 (nozzle) in the hot flow path backing plate 11, are provided with needle cover 8 between last code mask 13 and the hot runner manifold 12; The cylinder body of band cylinder cap 2 is fixed in the code mask 13 (fixed head), establishes a piston in the cylinder body, and the piston middle spindle hole connects an end of needle 7, and needle 7 passes needle cover 8, hot runner manifold 12 and hot mouth 9 backs and cooperates with the cast gate 10 of hot mouth 9 ends; Cylinder body is connected with compressed air-driven mechanism, and piston acts on needle 7 under the driving effect, makes its sealing or opens cast gate 10.Cylinder commonly used now all comes work by a single cylinder.The volume of whole cylinder body is not only big but also the motion total kilometres are less than normal, cost is higher, the little reason of the not enough motive force of air pressure in actual applications causes the smooth or needle of valve needle movements to beat phenomenons such as not in place easily, will directly have influence on the effect of cast gate sealing and the quality of injection-molded item.The needle valve TOP-TIP is in automobile making, medical treatment, electronics, many fields such as office equipment are widely used, each main medical industry automobile industry all adopts the needle valve hot flow path in the world in recent years, and a lot of opaque products cast gates must want smooth smooth to satisfy requirement attractive in appearance.This has only the needle valve of use cast gate hot flow path to realize.The other auto parts need spray colouration after moulding, if the injection mo(u)lding melt run is arranged on these parts, the color and luster of so painted back part just has different, also is difficult to satisfy quality requirement.When producing medical plastic products, must adopt the air pressure control method to produce, the pneumatic actuation mode often is used to the environment of " cleaning " goods, does not allow contaminated with oil mist etc. and cleans very much with the assurance goods.Compare also much smaller times compared with the effect that the simple still cylinder of hydraulic-driven produces, if just cause the needle dyskinesia to make cast gate sealing effect bad easily so control device air pressure is not enough aborning, a good control device is very important so, and the design of two cylinders just can realize improving product cast gate quality.
Summary of the invention
The utility model for solve existing needle valve hot flow path adopt the air cylinder driven active force little, cause the needle dyskinesia to influence the defective of end product quality easily, a kind of pair of cylinder needle valve hot flow path is provided, drives air pressure by adopting two cylinder arrangement effectively to improve, improve the product product quality.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of pair of cylinder needle valve hot flow path, comprise the last code mask and the hot flow path backing plate that connect up and down, be provided with a cylinder body in the last code mask, hot flow path backing plate middle part is provided with a hot runner manifold, the hot runner manifold top and the bottom cooperate with needle cover and hot mouth respectively, and the Re Zui bottom is provided with cast gate; One needle penetrates code mask, needle cover, hot runner manifold and Re Zui posterior end portion downwards respectively by cylinder body and cooperates with cast gate.Described cylinder body has I-shaped inner chamber, and cavity is respectively upper cylinder and lower cylinder up and down, is combined with an I-shaped double-piston in the cylinder body, and the needle upper end is fixedly connected in the double-piston central shaft hole.
Described cylinder body top is connected with cylinder cap, and cylinder cap is connected and fixed by holding screw and last code mask.
Described runner hole of going up code mask, needle cover, hot runner manifold and hot mouth communicates, and the needle kink within it.
Respectively be combined with an O RunddichtringO between the last nextpage of described I-shaped double-piston and cylinder body.
Described cylinder body is connected with compressed air-driven mechanism.Compressed air-driven mechanism is existing conventional techniques.
The utility model adopts two cylinders to replace existing single air cylinder structure, can reach 2 times of single-cylinder with the air pressure of the so two cylinders of compressed air-driven, guarantee that because of being provided with the O RunddichtringO in its cylinder body air pressure is in shape, make the valve needle movements effect reach better, its accessory interchangeability is good, use the operation and maintenance also very convenient, solved the bad technical barrier of needle sealing to satisfy the high-quality requirement of product.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described further:
Fig. 1 is the existing needle valve hot flow path structural representation that adopts air cylinder driven;
Fig. 2 is the utility model structural representation.
The specific embodiment
Two as shown in Figure 2 cylinder needle valve hot flow paths, whole cylinder body is made up of upper cylinder 3 and lower cylinder 5, its cylinder body is arranged in the groove frame of code mask 13 usually, the top is sealed by cylinder cap 2 and with several holding screws 1 this cylinder cap 2 and whole cylinder body all is fixed in the code mask 13, double-piston 4 is seated in the two cylinder body central shafts, needle 7 tops closely are nested in double-piston 4 central shaft holes, proportioning valve needle guard 8 centre bores again, needle overlaps 8 holes and communicates with the runner hole on hot runner manifold 12 tops, piston 4 is accepted acting on of pneumatic means driving and is done the circulation mechanical movement in the cylinder body central shaft up and down, thereby drive needle 7 is controlled to open and is closed cast gate 10, when piston 4 downwards the time (cast gate direction) cast gate then be in closed condition, when piston moves upward, allow cast gate be in open mode.Because of the two cylinder work simultaneously replacements of the design's characteristics employing are finished by original single cylinder, use compressed air-driven, single cylinder can get the about 3.3KN of closing force with the air pressure calculating of minimum 1MPa, so two cylinders then can get the about 6.6KN of closing force by the air pressure of minimum 1MPa, the air pressure of so two cylinders can reach 2 times of single-cylinder, because of being provided with the effect of double-piston 4 and O RunddichtringO 6 in its cylinder body, assurance air pressure is in shape, make needle 7 movement effects reach better, its accessory interchangeability is good, use operation and maintenance also very convenient, often be used in the PC engineering plastics of PMMA and mobile difference, solved the bad technical barrier of needle sealing to satisfy the high-quality requirement of product.
In medical field, people are very strict to the requirement of medical supplies, for example at the adapter assembly of medical intravenous drip infusion bag, directly contact the liquid medicine of infusion bag the inside owing to this assembly, so cannot there be sharp projection and any burr in the butt tube surface, otherwise can work the mischief to patient.Especially high to the part cast gate quality requirement of this adapter hot runner mould, common single-cylinder can not satisfy this requirement, adopted the novel twin cylinder of basis system very important help to be arranged, improved the inherent and external quality of injection-molded item to reach the bright and clean level and smooth requirement of product surface to improving product cast gate quality.
Claims (5)
1. two cylinder needle valve hot flow path, comprise the last code mask (13) and the hot flow path backing plate (11) that connect up and down, last code mask is provided with a cylinder body in (13), hot flow path backing plate (11) middle part is provided with a hot runner manifold (12), hot runner manifold (12) top and the bottom cooperate with needle cover (8) He Rezui (9) respectively, and hot mouth (9) bottom is provided with cast gate (10); One needle (7) penetrates code mask (13), needle cover (8), hot runner manifold (12) and hot mouth (9) posterior end portion downwards respectively by cylinder body and cooperates with cast gate (10), it is characterized in that: described cylinder body has I-shaped inner chamber, cavity is respectively upper cylinder (3) and lower cylinder (5) up and down, be combined with an I-shaped double-piston (4) in the cylinder body, needle (7) upper end is fixedly connected in double-piston (4) central shaft hole.
2. according to claim 1 pair of cylinder needle valve hot flow path is characterized in that: described cylinder body top is connected with cylinder cap (2), and cylinder cap (2) is connected and fixed by holding screw (1) and last code mask (13).
3. according to claim 1 pair of cylinder needle valve hot flow path is characterized in that: described runner hole of going up code mask (13), needle cover (8), hot runner manifold (12) and hot mouth (9) communicates, and needle (7) kink within it.
4. according to claim 1 or 2 or 3 described pairs of cylinder needle valve hot flow paths, it is characterized in that: respectively be combined with an O RunddichtringO (6) between the last nextpage of described I-shaped double-piston (4) and cylinder body.
5. according to claim 4 pair of cylinder needle valve hot flow path, it is characterized in that: described cylinder body is connected with compressed air-driven mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202053135U CN201511508U (en) | 2009-09-25 | 2009-09-25 | Double-cylinder needle valve type heat flow passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202053135U CN201511508U (en) | 2009-09-25 | 2009-09-25 | Double-cylinder needle valve type heat flow passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511508U true CN201511508U (en) | 2010-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202053135U Expired - Fee Related CN201511508U (en) | 2009-09-25 | 2009-09-25 | Double-cylinder needle valve type heat flow passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511508U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322520A (en) * | 2011-06-30 | 2012-01-18 | 深圳创维－Rgb电子有限公司 | Air cylinder cover and air cylinder for hot runner system and needle valve type hot runner system |
| CN103496096A (en) * | 2013-09-02 | 2014-01-08 | 严杰 | Hot runner system special-purposed cylinder |
| CN107030970A (en) * | 2015-07-27 | 2017-08-11 | 柳道万和(苏州)热流道系统有限公司 | Cylinder assembly and hot flow path injection moulding apparatus for hot flow path injection moulding apparatus |
| CN109159380A (en) * | 2018-11-09 | 2019-01-08 | 哈希斯热流道科技（苏州）有限公司 | A kind of injection mold double-piston needle-valve driving device |
-
2009
- 2009-09-25 CN CN2009202053135U patent/CN201511508U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322520A (en) * | 2011-06-30 | 2012-01-18 | 深圳创维－Rgb电子有限公司 | Air cylinder cover and air cylinder for hot runner system and needle valve type hot runner system |
| CN102322520B (en) * | 2011-06-30 | 2016-03-02 | 深圳创维－Rgb电子有限公司 | A kind of cylinder head for TOP-TIP, cylinder and needle valve type hot runner system |
| CN103496096A (en) * | 2013-09-02 | 2014-01-08 | 严杰 | Hot runner system special-purposed cylinder |
| CN107030970A (en) * | 2015-07-27 | 2017-08-11 | 柳道万和(苏州)热流道系统有限公司 | Cylinder assembly and hot flow path injection moulding apparatus for hot flow path injection moulding apparatus |
| CN107030970B (en) * | 2015-07-27 | 2019-11-01 | 柳道万和(苏州)热流道系统有限公司 | Cylinder assembly and hot flow path injection moulding apparatus for hot flow path injection moulding apparatus |
| CN109159380A (en) * | 2018-11-09 | 2019-01-08 | 哈希斯热流道科技（苏州）有限公司 | A kind of injection mold double-piston needle-valve driving device |
| CN109159380B (en) * | 2018-11-09 | 2023-12-12 | 哈希斯热流道科技（苏州）有限公司 | Injection mold double-piston needle valve driving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Skyworth Precision Technology Co., Ltd. Assignor: Shenzhen Skyworth-RGB Electronics Co., Ltd. Contract record no.: 2011440020148 Denomination of utility model: Double-cylinder needle valve type heat flow passage Granted publication date: 20100623 License type: Common License Record date: 20110428 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Shenzhen Skyworth Precision Technology Co., Ltd. Assignor: Shenzhen Skyworth-RGB Electronics Co., Ltd. Contract record no.: 2011440020148 Date of cancellation: 20121219 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Skyworth Precision Technology Co., Ltd. Assignor: Shenzhen Skyworth-RGB Electronics Co., Ltd. Contract record no.: 2012440020384 Denomination of utility model: Double-cylinder needle valve type heat flow passage Granted publication date: 20100623 License type: Exclusive License Record date: 20121219 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20150925 |
|
| EXPY | Termination of patent right or utility model |