CN207772313U - A kind of needle valve type hot runner system - Google Patents
A kind of needle valve type hot runner system Download PDFInfo
- Publication number
- CN207772313U CN207772313U CN201721856127.9U CN201721856127U CN207772313U CN 207772313 U CN207772313 U CN 207772313U CN 201721856127 U CN201721856127 U CN 201721856127U CN 207772313 U CN207772313 U CN 207772313U
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- CN
- China
- Prior art keywords
- needle
- hot runner
- bushing
- valve type
- type hot
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of needle valve type hot runner systems, including needle, hot runner manifold, driving device and heater, being cased with outside the needle can be along the needle bushing that needle is adjusted axially, the conical pilot hole with the conflict of needle bushing is offered on the hot runner manifold, pass through above-mentioned setting, during hot flow path use, needle is moved back and forth generates friction between needle bushing, when causing gap increase between needle and bushing, the smaller position movement of diameter of regulating valve Needle sleeve to pilot hole, needle bushing generates deformation under the extruding of pilot hole, the gap between needle bushing and needle is set to reduce, ensure the sealing performance at needle bushing.And needle and sleeve clearances are adjusted using this kind of mode, without being dismantled to mold, reduces workload and the time of professional, without repeating polishing needle, saves production cost.
Description
Technical field
The utility model is related to a kind of needle valve type hot runner systems.
Background technology
Currently, the Chinese patent of Publication No. CN205929316U discloses a kind of single-point needle valve type hot runner system, institute
Single-point needle valve type hot runner system is stated to include cylinder body, the cylinder cap for sealed cylinder block, the piston in cylinder body, be located in cylinder body
Hot nozzle structure, in hot nozzle structure and with piston be fixedly mounted needle and the heater on the outside of hot nozzle structure,
The hot nozzle structure includes the head heat nozzle being fixedly mounted, hot nozzle flange, hot nozzle ontology and nozzle point, the head heat nozzle successively
It is fixedly mounted with hot nozzle flange and piston, and primary heater, the heat is installed on the outside of head heat nozzle and hot nozzle flange
Nozzle outer body is installed with secondary heater.
The needle of this needle valve type hot runner system is fixed by valve needle cover, be oriented to and sealed, but is being used
Cheng Zhong, during needle is lifted, sizing material is easy leakage after needle bushing is worn, and is replaced, uses the longevity
Life is shorter.
Utility model content
The purpose of this utility model is to provide a kind of needle valve type hot runner, long with service life, good airproof performance it is excellent
Point.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of needle valve type hot runner system, including needle, hot runner manifold, driving device and heater, the needle housing
Have to offer on the needle bushing that needle is adjusted axially, the hot runner manifold and be oriented to the taper of the conflict of needle bushing
Hole.
By using above-mentioned technical proposal, during hot flow path use, needle is moved back and forth to be produced between needle bushing
Raw friction, when causing gap increase between needle and bushing, the smaller position movement of diameter of regulating valve Needle sleeve to pilot hole, valve
Needle sleeve generates deformation under the extruding of pilot hole, and the gap between needle bushing and needle is made to reduce, and ensures at needle bushing
Sealing performance.And needle and sleeve clearances are adjusted using this kind of mode, only needs first to remove cylinder, needle bushing is carried out
It is adjusted axially, reduces workload and the time of professional, without repeating polishing needle, save production cost.
Further setting：The driving device includes the mounting plate being connect with hot runner manifold, the needle bushing and installation
Plate is flexibly connected.
By using above-mentioned technical proposal, mounting plate for being fixed with hot flow path, and with driving device split settings, make
It obtains the distance between driving device and hot runner manifold to increase, the temperature for reducing driving device is promoted, and driving device operation is more steady
It is fixed.
Further setting：The mounting plate includes threaded adjustment hole, and the needle bushing is threadedly coupled with adjustment hole.
By using above-mentioned technical proposal, passed through when turning needle bushing by the position of threaded adjusting needle bushing
The extruding force that screw thread generates is larger, promotes the deformation of needle bushing, and threads turn distance controlling is more accurate, to valve
Gap adjustment between needle and needle bushing is accurate.And it is secured to be threadedly coupled locking, is not easy to drive during valve needle movements
Needle bushing moves.
Further setting：Connecting bowl, the connecting bowl and mounting plate are provided between the driving device and hot runner manifold
It is bolted.
By using above-mentioned technical proposal, connecting bowl is in bowl-shape, is supported on the lower section of driving device, driving device and hot-fluid
Cavity is formed between guidance tape, heat transmission is conducted heat by convection current at cavity, and relative to medium heat-transfer, heat transfer efficiency is low, to subtract
The heat for having lacked driving device rises, and ensures the normal operation of driving device.
Further setting：The driving device includes piston, and connecting hole, the connecting hole internal thread are provided on the piston
It is connected with extension lift bolt and locking bolt, T shape link slots are provided on the extension lift bolt, the locking bolt is set to extension lift
It is contradicted above bolt and with lift bolt is hung.
By using above-mentioned technical proposal, lift bolt is hung for fixing needle, locking bolt, which contacts at, hangs the upper of lift bolt
Side prevents extension lift bolt from moving, ensures the accurate of needle position, improve the service life of hot runner system.
Further setting：The locking bolt includes locking counterbore, and the bottom hole of the locking counterbore, which is provided with, leads to extension lift spiral shell
The control hole of bolt, the extension lift bolt top are provided with extension lift counterbore, diameter of the diameter for hanging lift counterbore less than control hole.
By using above-mentioned technical proposal, extension lift counterbore can be reached directly through control hole by adjusting tool, without taking
Going out can be adjusted to hanging lift bolt in the case of locking bolt, adjust it is accurate hang after lift screw again by locking bolt be screwed onto with
Locking bolt contradicts, and completes to adjust.When needing to adjust after usage, locking bolt is first loosened, gap is reserved and adjusts extension lift again
Bolt, it is easy to adjust, avoid locking bolt from needing to take out and lose or pollute.After long-time use, needle lower end and glue
Frictional impact constantly occurs between the outlet of material, will produce abrasion, influence leakproofness, remove driving device, it will be under needle
After the polishing of end, needle position is adjusted downwards so that needle continues to keep sealing with outlet.
Further setting：The upper end of the piston is provided with adjusting recess.
By using above-mentioned technical proposal, recess is adjusted for being connected with adjusting tool, fixation is provided for adjusting tool
Position hangs lift bolt and locking bolt so as to rotate, and reasonable for structure, adjusting tool is without being additionally carried out fixation, user
Just.
Further setting：The hardness of the needle bushing is less than the hardness of needle.
It reduces and needle is caused in the course of work using the smaller needle bushing of hardness by using above-mentioned technical proposal
Abrasion, improve the service life of needle.
Further setting：One end that the needle bushing and hot runner manifold contradict is set as taper, the needle bushing with
The taper of adjustment hole is equal.
It can pass through tune when the lower end of the central through hole of needle bushing is worn by using above-mentioned technical proposal
Knothole, which squeezes, to be generated deformation and reduces the internal diameter of needle bushing, when the abrasion of needle bushing is more serious, can be by needle bushing
Lower end polish, unworn position is contacted with needle, continues to use, substantially prolongs the use of needle bushing
Service life.
In conclusion the utility model has the advantages that：
Needle bushing is detached with lift screw is hung, using can individually adjust the needle bush structure of height, and is being worn
After needle bushing can be polished or be squeezed, prepare the size of mold again, used, need not form removal again, tear open
Debugged or replaced again after hot flow path, reduce professional workload and the time and repeat polishing needle use, save
Production cost.
Description of the drawings
Fig. 1 is the overall structure diagram of embodiment；
Fig. 2 is the configuration schematic diagram of embodiment；
Fig. 3 is the configuration schematic diagram at piston in embodiment；
Fig. 4 is the schematic cross-sectional view at piston in embodiment.
In figure, 1, needle；2, hot runner manifold；3, driving device；4, heater；5, needle bushing；6, conical pilot hole；7、
Mounting plate；8, adjustment hole；9, connecting bowl；10, piston；11, connecting hole；12, lift bolt is hung；13, locking bolt；14, locking is heavy
Hole；15, control hole；16, lift counterbore is hung；17, recess is adjusted.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment：A kind of needle valve type hot runner system, as shown in Figure 1, including hot runner manifold 2, being fixed on hot runner manifold 2
The driving device 3 of side and the heater 4 being fixed below hot flow path, wherein driving device 3 use cylinder.
With reference to Fig. 3 and Fig. 4, cylinder includes cylinder body and piston 10, and 10 center of piston is provided with connecting hole 11, spiral shell in connecting hole 11
Line is connected with extension lift bolt 12 and locking bolt 13.It hangs lift bolt 12 and is provided with T-shaped slot, it, will after needle 1 is embedded in T-shaped slot
After extension lift bolt 12 is screwed into connecting hole 11, needle 1 lifts 12 axial restraint of bolt with extension.Locking bolt 13, which is located at, hangs lift bolt 12
Top, 13 lower end of locking bolt with hang lift bolt 12 upper end contradict.13 upper end of locking bolt is provided with locking counterbore 14, locking
The bottom of counterbore 14 is provided with circular control hole 15.It hangs 12 top of lift bolt and is provided with extension lift counterbore 16, hang the diameter of lift counterbore 16
Less than the diameter of control hole 15.The top of piston 10 is provided with the adjusting recess 17 coordinated with adjusting tool, adjusts the fixation of tool
Part is fixed with recess 17 is adjusted, and then rotation drives locking bolt 13 or hangs lift bolt 12 and rotates, piston when avoiding adjusting
10 rotate.
As shown in Figure 2 and Figure 4, the lower section of driving device 3 is removably connected with bowl-shape connecting bowl 9, and connecting bowl 9 includes bowl
Body and the connection cover being buckled in bowl body, edge and the bowl body bottom of connection cover contradict.It is threaded with mounting plate below connection cover
7, mounting plate 7 is rounded, and there is a circle to contradict edge at edge, contradicts and is contradicted along with hot runner manifold 2.The bottom end of bowl body has and installation
The identical circular hole of 7 cross sectional shape of plate, mounting plate 7 are consolidated timing edge and are contradicted with bowl body.7 center of mounting plate is provided with threaded adjusting
Hole 8,8 internal thread of adjustment hole are connected with needle bushing 5, and needle bushing 5 is oriented to and is sealed to needle 1.Under needle bushing 5
It holds tapered, the taper pilot hole equal with needle bushing 5 is provided on hot runner manifold 2.
When installation, first mounting plate 7 is fixed on hot runner manifold 2, needle 1 penetrates needle bushing 5, regulating valve Needle sleeve 5
Bowl body is sleeved on mounting plate 7 to after meeting operating condition requirement, connection cover is then buckled in bowl by the position on mounting plate 7
It is threadedly coupled in vivo with mounting plate 7.Driving device 3 is fixed in bowl body again, then needle 1 is embedded in the T for hanging lift bolt 12
In shape link slot, extension lift bolt 12 is turned to suitable position, then locking bolt 13 is screwed into connecting hole 11 and is supported with lift bolt 12 is hung
It touches, completes the installation of needle 1.
In use, 5 hardness of needle bushing is less than 1 hardness of needle, and needle bushing 5 is worn first, after abrasion
Needle bushing 5 is adjusted.When adjusting, driving device 3 is detached with connecting bowl 9 first, needle 1 and driving device 3 is same
When take out.Then the bolt between the connection cover of connecting bowl 9 and mounting plate 7 is detached, opens connection cover.Needle bushing 5 is turned,
So that needle bushing 5 is moved downward, by the extruding of pilot hole, reduces the bore of 5 lower end of needle bushing, improve needle 1 and needle
Leakproofness between bushing 5, makes hot runner system meet requirement again.Finally connection cover and driving device 3 are resetted, weight
Combination nova is at hot flow path.When needing polishing needle bushing 5, after opening connection cover, after needle bushing 5 is taken out polishing, weight
It newly is screwed into adjusting, this will not be repeated here.
After long-time use, frictional impact constantly occurs between 1 lower end of needle and the outlet of sizing material, will produce mill
Damage, influences leakproofness.Driving device 3 is removed, after the lower end of needle 1 is polished, adjusts 1 position of needle downwards, then will driving
Device 3 is reinstalled so that needle 1 continues to keep sealing with outlet.
The above embodiments are only the explanation to the utility model, are not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (10)
1. a kind of needle valve type hot runner system, including needle (1), hot runner manifold (2), driving device and heater (4), feature
It is：It is cased with and can be opened up on the needle bushing (5) that needle (1) is adjusted axially, the hot runner manifold (2) outside the needle (1)
Have and the conical pilot hole of the conflict of needle bushing (5) (6).
2. a kind of needle valve type hot runner system according to claim 1, it is characterised in that：The needle bushing (5) and heat
One end that runner plate (2) contradicts is set as taper, and the needle bushing (5) is equal with the taper of adjustment hole (8).
3. a kind of needle valve type hot runner system according to claim 1, it is characterised in that：The driving device (3) includes
The mounting plate (7) being connect with hot runner manifold (2), the needle bushing (5) are flexibly connected with mounting plate (7).
4. a kind of needle valve type hot runner system according to claim 3, it is characterised in that：The mounting plate (7) includes band
The adjustment hole (8) of screw thread, the needle bushing (5) are threadedly coupled with adjustment hole (8).
5. a kind of needle valve type hot runner system according to claim 3, it is characterised in that：The driving device (3) and heat
Connecting bowl (9) is provided between runner plate (2), the connecting bowl (9) is bolted with mounting plate (7).
6. a kind of needle valve type hot runner system according to claim 1, it is characterised in that：The driving device (3) includes
Piston (10), connecting hole (11) is provided on the piston (10), and connecting hole (11) internal thread is connected with extension lift bolt (12)
With locking bolt (13), the extension is lifted and is provided with T shape link slots on bolt (12), and the locking bolt (13) is set to extension lift spiral shell
It is contradicted above bolt (12) and with lift bolt (12) is hung.
7. a kind of needle valve type hot runner system according to claim 6, it is characterised in that：The locking bolt (13) includes
Counterbore (14) is locked, the bottom hole of the locking counterbore (14) is provided with the control hole (15) for leading to and hanging lift bolt (12), the extension lift
Extension lift counterbore (16) is provided with above bolt (12), the diameter for hanging lift counterbore (16) is less than the diameter of control hole (15).
8. a kind of needle valve type hot runner system according to claim 7, it is characterised in that：It opens the upper end of the piston (10)
There is adjusting recess (17).
9. a kind of needle valve type hot runner system according to claim 1, it is characterised in that：The needle bushing (5) it is hard
Hardness of the degree less than needle (1).
10. a kind of needle valve type hot runner system according to claim 1, it is characterised in that：The driving device is cylinder
Or hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721856127.9U CN207772313U (en) | 2017-12-26 | 2017-12-26 | A kind of needle valve type hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721856127.9U CN207772313U (en) | 2017-12-26 | 2017-12-26 | A kind of needle valve type hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207772313U true CN207772313U (en) | 2018-08-28 |
Family
ID=63224912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721856127.9U Expired - Fee Related CN207772313U (en) | 2017-12-26 | 2017-12-26 | A kind of needle valve type hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207772313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113427720A (en) * | 2021-06-17 | 2021-09-24 | 艾默斯智能科技(深圳)有限公司 | Coaxial valve needle system of stack mould |
-
2017
- 2017-12-26 CN CN201721856127.9U patent/CN207772313U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113427720A (en) * | 2021-06-17 | 2021-09-24 | 艾默斯智能科技(深圳)有限公司 | Coaxial valve needle system of stack mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180828 Termination date: 20211226 |