CN203557641U - Novel needle-valve-type hot runner - Google Patents
Novel needle-valve-type hot runner Download PDFInfo
- Publication number
- CN203557641U CN203557641U CN201320773818.8U CN201320773818U CN203557641U CN 203557641 U CN203557641 U CN 203557641U CN 201320773818 U CN201320773818 U CN 201320773818U CN 203557641 U CN203557641 U CN 203557641U
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- mouth
- runner
- type hot
- distribution plate
- flow distribution
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Abstract
Disclosed is a novel needle-valve-type hot runner which comprises a spreader plate, a main sprue, a hot nozzle, a valve needle and a driving device. A first runner is arranged on the spreader plate, the hot nozzle comprises a nozzle body, a nozzle head and a nozzle core, the nozzle body is mounted on the spreader plate, a second runner communicated with the first runner is arranged in the nozzle body, the nozzle head is arranged at one end, away from the spreader plate, of the nozzle body, the nozzle core comprises a rod portion and a head portion, a plurality of glue passing holes and a guide hole extending along the axial direction of the head portion are formed in the head portion, the driving device is supported on the spreader plate, and the valve needle is connected with the driving device and penetratingly arranged in the spreader plate, the nozzle body and the guide hole of the head portion of the nozzle core sequentially. Compared with the prior art, the novel needle-valve-type hot runner has the advantages that the guide hole is arranged in the head portion of the nozzle core to guide and position the valve needle, so that the valve needle or a die glue-sealed face is avoided from being damaged; the glue passing groove enables four sol to be fused well, so that generation of flow marks on product surface is avoided.
Description
Technical field
The utility model relates to hot runner mould technical field, a kind of especially Novel needle type hot runner system.
Background technology
Along with the development of Hot runner Technology, needle valve type hot runner system is more and more subject to the favor of enterprise.Needle valve type hot runner system can not only be controlled the problems such as product weld mark, distortion, and product to enter cast gate attractive in appearance, improved product quality.
In current needle valve type hot runner system, needle, in sealing process, there will be the axis disalignment of needle and cast gate and damages the tight phenomenon of even not destroying the cast gate of mould of needle sealing face, sealing.Meanwhile, during work, also can cause needle distortion, card pin phenomenon.In addition, needle valve hot flow passage system gate area, easily because of the too low formation current mark of mouth core front end temperature, affects the outward appearance of plastic cement products.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of needle valve type hot runner that can effectively control needle distortion and solve cast gate current mark problem simultaneously.
For achieving the above object, the utility model adopts following technical scheme:
A kind of Novel needle type hot runner, it comprises flow distribution plate, is arranged at main sprue bushing and Re Zui, needle and the drive unit at the upper and lower two ends of flow distribution plate, offers the first flow being communicated between main sprue bushing and hot mouth on flow distribution plate.The mouth that hot mouth comprises mouth body, be connected with mouth body and be arranged in the mouth core in mouth body and mouth.Mouth body is installed on and on flow distribution plate and in it, offers the second runner being communicated with first flow.Mouth is arranged at mouth body one end away from flow distribution plate, and the bar portion that mouth core comprises and mouth body is communicated with and the head being connected with bar portion offer the some mistakes glue holes that are communicated with the second runner and along its axially extended pilot hole in this head.Drive unit is supported on flow distribution plate, and needle is connected with drive unit and is arranged in successively in the second runner of flow distribution plate, mouth body and the pilot hole of mouth core head.
The outer surface of mouth core head is provided with some glue holes excessively and was communicated with glue groove, and glue groove is spirally distributed in the outer surface of mouth core head excessively.
Each glue hole is excessively connected one end aperture with the second runner is less than its aperture away from the second runner other end.
Mouth core head is arranged at intervals with four and crosses glue hole.
Mouth adopts the mode of threaded engagement to be connected with mouth body.
The bar portion of mouth core adopts the mode of threaded engagement to be connected with mouth body.
Flow distribution plate and needle correspondence position arrange the positioning sleeve of promising needle guide-localization.
The surface that mouth body is relative with flow distribution plate offers seal groove.
Mouth body outer cover has heater.
The beneficial effects of the utility model are:
Than prior art; the utility model high-speed electric main shaft internal body is designed with the inlet channel, interface channel, outlet passageway and the ring air drain that are interconnected; thereby compressed air is flowed to from top to bottom; prevent that the impurity such as outside cutting fluid, greasy dirt from entering internal body; play protection and extend bearing service life, also can play abundant cooling corresponding bearing.
Accompanying drawing explanation
Fig. 1 is the utility model needle valve type hot runner system structural representation;
Fig. 2 is hot mouth assembling schematic diagram in needle valve type hot runner system shown in Fig. 1;
Fig. 3 is mouth structural representation in needle valve type hot runner system shown in Fig. 1;
Fig. 4 is mouth cored structure schematic diagram in needle valve type hot runner system shown in Fig. 1;
Fig. 5 is mouth core cutaway view in needle valve type hot runner system shown in Fig. 4.
Wherein: 10, main sprue bushing; 20, flow distribution plate; 21, first flow; 22, positioning sleeve; 30, Re Zui; 31, mouth body; 310, first end; 311, seal groove; 312, the second runner; 314, the second end; 33, mouth; 331, screw togather end; 333, sealing face; 335, six orientation; 35, mouth core; 351, bar portion; 352, head; 353, cross glue hole; 354, pilot hole; 355, cross glue groove; 356, the 3rd runner; 40, needle; 50, heater; 60, drive unit; 70, back-up block.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further:
As shown in Figure 1, be a kind of Novel needle type hot runner system of the present utility model, it comprises main sprue bushing 10, flow distribution plate 20, hot mouth 30, needle 40, heater 50 and drive unit 60.Main sprue bushing 10 is installed on respectively flow distribution plate with hot mouth 30, and Shang Xia 20 two ends.Wherein, main sprue bushing 10 is arranged at flow distribution plate 20 compared with upper end, for injecting melten gel.On flow distribution plate 20, be provided with and be communicated between main sprue bushing 10 and each hot mouth 30 for shunting the first flow 21 of melten gel.
Please, in the lump referring to Fig. 2 and Fig. 3, hot mouth 30 comprises mouth body 31, mouth 33 and mouth core 35.Mouth body 31 comprises first end 310 and the second end 314 relative with first end 310.First end 310 is installed on flow distribution plate 20 and its surface relative with flow distribution plate 20 offers seal groove 311, in order to be closely connected with the plastic hole of the first flow 21 in flow distribution plate 20, avoids leak glue.First end 310 middle parts are run through and are provided with the second runner 312 being communicated with first flow 21 on flow distribution plate 20.Mouth 33 comprises and screws togather end 331, sealing face 333 and six orientation 335.Wherein, screw togather end 331 and be arranged at relative two ends with sealing face 333, six orientation 335 are arranged at and screw togather between end 331 and sealing face 333.Mouth 33 is screwed together on mouth body 31 the second ends 314 by screwing togather end 331, is convenient to dismounting.
Please, in the lump referring to Fig. 4 and Fig. 5, mouth core 35 is set in one end of mouth body 31 the second ends 314 and exposes to the end of mouth 33.The head 352 that mouth core 35 comprises bar portion 351 and is connected with bar portion 351.Bar portion 351 coordinates with mouth body 31 threads and middle part offers the 3rd runner 356 being communicated with the second runner 312.In head 352, offer some be communicated with the 3rd runner 356 cross glue holes 353 and along its axially extended pilot hole 354.Head 352 outer surfaces are provided with the glue groove 355 being excessively communicated with some glue holes 353 excessively.Wherein, each glue hole 353 of crossing is horn-like substantially, and its aperture that is connected one end with the second runner 312 is less than its aperture away from second runner 312 other ends.So, the pressure loss in the time of can reducing melten gel through mouth core 35.In the present embodiment, the quantity of crossing glue hole 353 is four.Cross glue groove 355 and be arranged in the shape of a spiral head 352 outer surfaces, thereby make to be divided into four fine the merging of melten gel energy by crossing glue hole 353 1, avoid occurring current mark.In the present embodiment, head 352 adopts thicker material layer, is beneficial to the transmission of heat, thereby makes head 352 have more stable temperature, is beneficial to the sealing of needle 40 and the moulding of product.
When work, melten gel is injected by main sprue bushing 10, through flow distribution plate 20, branches to each hot mouth 30.Melten gel is crossed glue holes 353 1 by four and is divided into four through the 3rd runner 356 of mouth core 35 is rear, from cast gate, injects at a high speed mold cavity.After product is filled with, drive unit 60 drives needle 40 in positioning sleeve 22 and the interior slip of mouth core 35 pilot hole 354, accurately seals cast gate.
In the utility model, at melten gel, in the process of circulation, cross glue groove 355 these four melten gels can be merged preferably, at product surface, do not produce current mark.Meanwhile, in the head 352 of mouth core 35, be provided with pilot hole 354, so that needle 40 is played to guide-localization effect, thereby avoid damaging needle 40 or mould sealing face.In addition, mouth core 35 heads 352 have thicker material layer, are beneficial to the transmission of heat, make its head 352 have more stable temperature, for melten gel merges mutually, provide guarantee.Cast gate temperature has solved product surface current mark problem preferably, is beneficial to the sealing of needle 40 simultaneously, has improved TOP-TIP overall performance.
To one skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and deformation, and within these all changes and deformation all should belong to the protection domain of the utility model claim.
Claims (9)
1. a Novel needle type hot runner, is characterized in that: comprise flow distribution plate, be arranged at main sprue bushing and Re Zui, needle and the drive unit at the upper and lower two ends of flow distribution plate, offer the first flow being communicated between main sprue bushing and hot mouth on flow distribution plate; The mouth that hot mouth comprises mouth body, be connected with mouth body and be arranged in the mouth core in mouth body and mouth; Mouth body is installed on and on flow distribution plate and in it, offers the second runner being communicated with first flow; Mouth is arranged at mouth body one end away from flow distribution plate, and the bar portion that mouth core comprises and mouth body is communicated with and the head being connected with bar portion offer the some mistakes glue holes that are communicated with the second runner and along its axially extended pilot hole in this head; Drive unit is supported on flow distribution plate, and needle is connected with drive unit and is arranged in successively in the second runner of flow distribution plate, mouth body and the pilot hole of mouth core head.
2. Novel needle type hot runner as claimed in claim 1, is characterized in that: the outer surface of mouth core head is provided with some glue holes excessively and was communicated with glue groove, and glue groove is spirally distributed in the outer surface of mouth core head excessively.
3. Novel needle type hot runner as claimed in claim 1, is characterized in that: each glue hole is excessively connected one end aperture with the second runner is less than its aperture away from the second runner other end.
4. Novel needle type hot runner as claimed in claim 3, is characterized in that: mouth core head is arranged at intervals with four and crosses glue hole.
5. Novel needle type hot runner as claimed in claim 1, is characterized in that: mouth adopts the mode of threaded engagement to be connected with mouth body.
6. Novel needle type hot runner as claimed in claim 1, is characterized in that: the bar portion of mouth core adopts the mode of threaded engagement to be connected with mouth body.
7. Novel needle type hot runner as claimed in claim 1, is characterized in that: flow distribution plate and needle correspondence position arrange the positioning sleeve of promising needle guide-localization.
8. Novel needle type hot runner as claimed in claim 1, is characterized in that: the surface that mouth body is relative with flow distribution plate offers seal groove.
9. Novel needle type hot runner as claimed in claim 1, is characterized in that: mouth body outer cover has heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773818.8U CN203557641U (en) | 2013-11-28 | 2013-11-28 | Novel needle-valve-type hot runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773818.8U CN203557641U (en) | 2013-11-28 | 2013-11-28 | Novel needle-valve-type hot runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203557641U true CN203557641U (en) | 2014-04-23 |
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ID=50507380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320773818.8U Expired - Fee Related CN203557641U (en) | 2013-11-28 | 2013-11-28 | Novel needle-valve-type hot runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203557641U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369318A (en) * | 2014-11-10 | 2015-02-25 | 苏州洛世奇热流道科技有限公司 | Straight valve needle sprue hot runner spray nozzle |
| CN107650336A (en) * | 2016-07-26 | 2018-02-02 | 柳道万和(苏州)热流道***有限公司 | Hot nozzle structure and hot flow path adapted to injection system |
-
2013
- 2013-11-28 CN CN201320773818.8U patent/CN203557641U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369318A (en) * | 2014-11-10 | 2015-02-25 | 苏州洛世奇热流道科技有限公司 | Straight valve needle sprue hot runner spray nozzle |
| CN107650336A (en) * | 2016-07-26 | 2018-02-02 | 柳道万和(苏州)热流道***有限公司 | Hot nozzle structure and hot flow path adapted to injection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20211128 |