CN206254433U - A kind of new single site needle valve structure - Google Patents
A kind of new single site needle valve structure Download PDFInfo
- Publication number
- CN206254433U CN206254433U CN201621285804.1U CN201621285804U CN206254433U CN 206254433 U CN206254433 U CN 206254433U CN 201621285804 U CN201621285804 U CN 201621285804U CN 206254433 U CN206254433 U CN 206254433U
- Authority
- CN
- China
- Prior art keywords
- needle
- single site
- new single
- valve structure
- sprue
- 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.)
- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of new single site needle valve structure, including locating ring, body is installed with below the locating ring, and the both sides of body outer wall are installed with heating collar, the inner body wall presses close at heating collar position to be installed with thermocouple, and thermocouple introduces external terminal through body wall, the locating ring is internally provided with charging groove, and the lower end of charging groove is connected with the upper end of sprue.The new single site needle valve structure, using single point needle-valve type feeding structure, reduces the setting of cylinder modules, driving source is not needed, mould processing is enormously simplify, and is shortened the installation of mould and is maintained the activity duration, shaping speed can be improved using needle valve type hot runner system, shorten molding cycle, by setting spring nested structure, excessive glue and needle stuck phenomenon can be avoided, be combined with spreader, needle can be carried out into track to fix, it is ensured that needle is moved along axis.
Description
Technical field
The utility model is related to needle-valve technical field, specially a kind of new single site needle valve structure.
Background technology
Needle-valve is a kind of reset valve, and its valve plug is aciculiform, is mainly used as adjusting throughput.Reset valve requirement valve port open by
Gradual change is big, and maximum continuously can be adjusted fine from closing to opening.Needle plug can realize this function.Needle plug is general
The steel minute hand quenched with process, and valve seat is made of soft materials such as tin, copper.Needle is to rely on it with the sealing of valve base chamber
The conical surface is fitted close what is reached.The taper of needle has 1：50 and 60 two kinds of cone angles, poppet surface will be by fine gtinding.Valve rod and valve
Sealing between seat realizes that current single head needle-valve uses air cylinder driven by bellows, and process operation is complicated, and it is easy due to
Abrasion causes excessive glue and stuck phenomenon.
Utility model content
For problem above, the utility model provides a kind of new single site needle valve structure, enormously simplify mould processing,
And installation and the maintenance activity duration of mould are shortened, shaping speed can be improved, shorten molding cycle, be effectively improved
Reliability of the system in batch production, in can effectively solving the problems, such as background technology.
To achieve the above object, the utility model provides following technical scheme：A kind of new single site needle valve structure, including it is fixed
Position ring, is installed with body below the locating ring, and the both sides of body outer wall are installed with heating collar, the body
Inwall is pressed close to be installed with thermocouple at heating collar position, and thermocouple introduces external terminal, the positioning through body wall
Ring is internally provided with charging groove, and the lower end of charging groove is connected with the upper end of sprue, the sprue fixed installation
The upper end of spreader is connected with the lower end at the middle part of body, and sprue, the lower end of the spreader is connected with the upper of needle
End, and the outer wall surface of needle is installed with spring housing, before the both sides of the spring housing are installed with heat transfer block, and needle
End and spring housing front end nested groups synthesis nozzle head.
Used as a kind of preferred technical scheme of the utility model, the heating collar uses copper sheet heat radiation heating mode, and
The outer surface of heating collar is installed with radiation shield.
Used as a kind of preferred technical scheme of the utility model, the needle uses silicon steel material, and needle includes needle tubing
And syringe needle, and needle tubing and syringe needle are using spiral connection.
Used as a kind of preferred technical scheme of the utility model, the sprue uses up-narrow and down-wide formula structure.
Compared with prior art, the beneficial effects of the utility model are：The new single site needle valve structure, using single-point needle valve
Formula feeding structure, reduces the setting of cylinder modules, it is not necessary to driving source, enormously simplify mould processing, and shorten mould
Installation and the maintenance activity duration, shaping speed can be improved using needle valve type hot runner system, shorten molding cycle, by setting
Spring nested structure is put, excessive glue and needle stuck phenomenon can be avoided, the service life of extension fixture, be combined with spreader, can be with
Needle is carried out into track to fix, it is ensured that needle is moved along axis, prevent deviation from causing broken needle etc. unexpected, so as to effectively carry
Reliability of the system in batch production high.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model cross-sectional view.
In figure：1- locating rings；2- bodies；3- heating collars；4- thermocouples；5- external terminals；6- feeds groove；7- main flows
Road；8- spreaders；9- needles；10- spring housings；11- heat transfer blocks；12- nozzle heads；13- radiation shields.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Embodiment：
Fig. 1 and Fig. 2 is referred to, the utility model provides a kind of technical scheme：A kind of new single site needle valve structure, including it is fixed
Position ring 1, the lower section of the locating ring 1 is installed with body 2, and the both sides of the outer wall of body 2 are installed with heating collar 3, institute
State the inwall of body 2 and press close to be installed with thermocouple 4 at the position of heating collar 3, and thermocouple 4 introduces external connection end through the wall of body 2
Son 5, being internally provided with for the locating ring 1 feeds groove 6, and feeds the upper end that the lower end of groove 6 is connected with sprue 7, institute
State the middle part that sprue 7 is fixedly mounted on body 2, and the lower end of sprue 7 is connected with the upper end of spreader 8, the spreader 8
Lower end be connected with the upper end of needle 9, and the outer wall surface of needle 9 is installed with spring housing 10, the two of the spring housing 10
Side is installed with heat transfer block 11, and the front end of needle 9 and the front end nested groups synthesis nozzle head 12 of spring housing 10, the heating collar 3
Radiation shield 13 is installed with using the outer surface of copper sheet heat radiation heating mode, and heating collar 3, the needle 9 uses silicon
Steel material, and needle 9 includes needle tubing and syringe needle, and needle tubing and syringe needle are using spiral connection, the sprue 7 using it is upper it is narrow under
Formula structure wide.
Operation principle of the present utility model：The new single site needle valve structure, when injection starts, by adjusting locating ring 1
Position carries out being accurately positioned for injection-moulding position, is molded from the charging groove 6 in locating ring 1, and slip casting is flowed along sprue 7
Enter, injection pressure rises with the increase of the amount of slip casting, make the pressure initiation in the pressure and mold cavity in nozzle head 13
Pressure differential, when this pressure differential overcomes 10 elastic force of spring housing enough, just promotes needle 9 to advance, and opens needle-valve 9, so that real
Slip casting in existing mould, when injection ends, when the pressure in nozzle head 12 drops to mould type cavity pressure, the elastic force of spring housing 10
Order about needle 9 to retreat, close needle-valve 9.When die cavity is filled, during pressure close in nozzle head 12 of pressure in mold cavity,
The entrance of needle-valve 9 closes on closed mode, i.e. packing state.According to the pressure oscillation in mold cavity, the adjust automatically of needle-valve 9 is opened
Degree, heating collar 3 is used to heat sprue 7, in order to prevent being molded gel, causes runner to block, and is combined with radiation shield
13 carry out heat radiation screening, prevent from scattering in air, and injection heat is monitored using thermocouple 4 and external terminal, prevent
Only temperature is not normal, influences normal injection moulding process, and the long-time of spring housing 10 is in and stretches tension state, can produce bad heat, uses biography
Hot block 11 carries out radiating treatment.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (4)
1. a kind of new single site needle valve structure, including locating ring（1）, the locating ring（1）Lower section be installed with body
（2）, and body（2）The both sides of outer wall are installed with heating collar（3）, it is characterised in that：The body（2）Inwall presses close to heating
Circle（3）Thermocouple is installed with position（4）, and thermocouple（4）Through body（2）Wall introduces external terminal（5）, it is described fixed
Position ring（1）Be internally provided with charging groove（6）, and charging groove（6）Lower end be connected with sprue（7）Upper end, it is described
Sprue（7）It is fixedly mounted on body（2）Middle part, and sprue（7）Lower end be connected with spreader（8）Upper end, it is described
Spreader（8）Lower end be connected with needle（9）Upper end, and needle（9）Outer wall surface be installed with spring housing（10）, institute
State spring housing（10）Both sides be installed with heat transfer block（11）, and needle（9）Front end and spring housing（10）The nested combination in front end
Into nozzle head（12）.
2. a kind of new single site needle valve structure according to claim 1, it is characterised in that：The heating collar（3）Using copper
Piece heat radiation heating mode, and heating collar（3）Outer surface be installed with radiation shield（13）.
3. a kind of new single site needle valve structure according to claim 1, it is characterised in that：The needle（9）Using silicon steel
Material, and needle（9）Including needle tubing and syringe needle, and needle tubing and syringe needle are using spiral connection.
4. a kind of new single site needle valve structure according to claim 1, it is characterised in that：The sprue（7）Using upper
Narrow lower formula structure wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621285804.1U CN206254433U (en) | 2016-11-28 | 2016-11-28 | A kind of new single site needle valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621285804.1U CN206254433U (en) | 2016-11-28 | 2016-11-28 | A kind of new single site needle valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206254433U true CN206254433U (en) | 2017-06-16 |
Family
ID=59027088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621285804.1U Expired - Fee Related CN206254433U (en) | 2016-11-28 | 2016-11-28 | A kind of new single site needle valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206254433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748891A (en) * | 2018-08-20 | 2018-11-06 | 柳道万和(苏州)热流道系统有限公司 | Sharp-tongued, hot mouth component and hot runner system |
-
2016
- 2016-11-28 CN CN201621285804.1U patent/CN206254433U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748891A (en) * | 2018-08-20 | 2018-11-06 | 柳道万和(苏州)热流道系统有限公司 | Sharp-tongued, hot mouth component and hot runner system |
| CN108748891B (en) * | 2018-08-20 | 2024-04-30 | 柳道万和(苏州)热流道系统有限公司 | Nozzle tip, hot nozzle assembly and hot runner system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20201128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |