CN220075427U - Hot runner valve needle positioning assembly - Google Patents
Hot runner valve needle positioning assembly Download PDFInfo
- Publication number
- CN220075427U CN220075427U CN202321634183.3U CN202321634183U CN220075427U CN 220075427 U CN220075427 U CN 220075427U CN 202321634183 U CN202321634183 U CN 202321634183U CN 220075427 U CN220075427 U CN 220075427U
- Authority
- CN
- China
- Prior art keywords
- hot runner
- valve needle
- nozzle
- positioning assembly
- close
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a hot runner valve needle positioning assembly which comprises a hot runner, wherein a connecting groove is formed in the inner wall of the outlet end of the hot runner, a connecting pipe is embedded in the connecting groove, the connecting pipe is far away from a nozzle, the connecting pipe and the nozzle are integrated, a central hole is formed in the middle of the nozzle, and a spiral groove is formed in the inner wall, close to one end of the hot runner, of the central hole. According to the utility model, the spiral groove is formed in the inner wall of the central hole, which is close to one end of the hot runner, so that the valve needle is not used for blocking one end of the spiral groove, which is close to the outlet of the nozzle, and molten plastic particles are injected into the mold from the nozzle through the spiral groove, so that one end of the valve needle, which is close to the nozzle, is embedded in the central hole during injection molding, and the valve needle is fixed, thereby effectively avoiding the phenomenon that the valve needle is eccentric due to the change of injection molding pressure in the injection molding process, effectively prolonging the service life of the mold and improving the production efficiency of the mold.
Description
Technical Field
The utility model relates to the technical field of hot runner valve needle mechanisms, in particular to a hot runner valve needle positioning assembly.
Background
The hot runner is a heating assembly system used in injection molds to inject melted plastic particles into the cavity of the mold. The hot runner mold is a brand new structure in which runners and runners of a conventional mold or a three-plate mold are heated, and the runners and runners do not need to be taken out during each molding.
For example, the utility model patent with publication number of CN217670811U discloses a titanium alloy heat insulation cap for a valve needle hot runner mold, wherein the problem of poor sealing performance of the hot runner valve needle and poor injection molding can be solved by increasing the included angle between a heat insulation sheet and the hot runner valve needle.
However, in the valve needle type hot runner mold, when the valve needle is in an open state during production, plastic passes through the side surface of the valve needle, and the valve needle is eccentric due to injection pressure, so that the valve needle is filled quickly and slowly; therefore, the existing needs are not met, and a hot runner valve needle positioning assembly is proposed.
Disclosure of Invention
The utility model aims to provide a hot runner valve needle positioning assembly, which solves the problems that in the valve needle hot runner mold provided in the prior art, plastic passes through the side surface of the valve needle in an opened state during production, and the valve needle is eccentric due to injection pressure, so that the valve needle is filled quickly and simultaneously with a slow outlet.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hot runner needle positioning assembly, includes the hot runner, the exit end inner wall of hot runner is equipped with the spread groove, the inside embedding of spread groove has the connecting pipe, the nozzle is kept away from to the connecting pipe, the connecting pipe is as an organic whole with the nozzle, the centre of nozzle is equipped with the centre bore, the inner wall that the centre bore is close to hot runner one end is equipped with the helicla flute.
Preferably, a valve needle is arranged in the hot runner, the valve needle is embedded in the central hole, and the valve needle passes through the spiral groove.
Preferably, a plurality of through holes are uniformly formed in one end, close to the nozzle, of the hot runner, and a limiting groove is formed in the end face, facing the through holes, of the connecting pipe.
Preferably, the through holes are embedded with balls, and one ends of the balls penetrate through the through holes and are embedded into the limiting grooves.
Preferably, one end of the hot runner, which is close to the nozzle, is sleeved with a sleeve, and the end face, facing the through hole, of the sleeve is provided with a limiting block B.
Preferably, two limiting blocks A are arranged on the outer ring of one end, close to the nozzle, of the hot runner, and springs are arranged on the back surface, facing the nozzle, of each limiting block B.
Preferably, the spring is sleeved on the hot runner, a sealing ring is arranged on the inner side of the connecting groove, and the connecting pipe extrudes the sealing ring.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the spiral groove is formed in the inner wall of the central hole, which is close to one end of the hot runner, so that the valve needle is not used for blocking one end of the spiral groove, which is close to the outlet of the nozzle, and molten plastic particles are injected into the mold from the nozzle through the spiral groove, so that one end of the valve needle, which is close to the nozzle, is embedded in the central hole during injection molding, and the valve needle is fixed, thereby effectively avoiding the phenomenon that the valve needle is eccentric due to the change of injection molding pressure in the injection molding process, effectively prolonging the service life of the mold and improving the production efficiency of the mold.
Drawings
FIG. 1 is a schematic perspective view of the whole structure of the present utility model;
FIG. 2 is a schematic view of a hot runner of the present utility model in partial cross-section;
FIG. 3 is a schematic view of the partial structure of FIG. 2A according to the present utility model;
fig. 4 is a schematic view showing a partial structure at B in fig. 2 according to the present utility model.
In the figure: 1. a hot runner; 2. a sleeve; 3. a nozzle; 4. a connecting pipe; 5. a central bore; 6. a spiral groove; 7. a limiting block A; 8. a spring; 9. a valve needle; 10. a limiting block B; 11. a connecting groove; 12. a through hole; 13. a ball; 14. a limit groove; 15. and (3) sealing rings.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1 to 4, an embodiment of the present utility model provides: the utility model provides a hot runner needle positioning assembly, includes hot runner 1, and the exit end inner wall of hot runner 1 is equipped with spread groove 11, and spread groove 11's inside embedding has connecting pipe 4, and nozzle 3 is kept away from to connecting pipe 4, and connecting pipe 4 and nozzle 3 are as an organic whole, and nozzle 3's centre is equipped with centre bore 5, and centre bore 5 is equipped with helical groove 6 near the inner wall of hot runner 1 one end.
The interior of the hot runner 1 is provided with a needle 9, the needle 9 being inserted into the central bore 5, and the needle 9 passing through the helical groove 6.
The end of the hot runner 1, which is close to the nozzle 3, is uniformly provided with a plurality of through holes 12, and the end face of the connecting pipe 4, which faces the through holes 12, is provided with a limit groove 14.
The balls 13 are embedded in the through holes 12, and one ends of the balls 13 penetrate through the through holes 12 and are embedded in the limiting grooves 14.
One end of the hot runner 1, which is close to the nozzle 3, is sleeved with a sleeve 2, and the end surface of the sleeve 2, which faces the through hole 12, is provided with a limiting block B10.
Two limiting blocks A7 are arranged on the outer ring of one end, close to the nozzle 3, of the hot runner 1, and springs 8 are arranged on the back surface, facing the nozzle 3, of the limiting block B10.
The spring 8 is sleeved on the hot runner 1, a sealing ring 15 is arranged on the inner side of the connecting groove 11, and the connecting pipe 4 presses the sealing ring 15.
In summary, when the valve needle 9 moves towards the hot runner 1 to start injection molding, the spiral groove 6 is arranged on the inner wall of the central hole 5 near one end of the hot runner 1, so that the valve needle 9 is not used for blocking one end of the spiral groove 6 near the outlet of the nozzle 3, molten plastic particles are injected into the mold from the nozzle 3 through the spiral groove 6, one end of the valve needle 9 near the nozzle 3 is embedded in the central hole 5 during injection molding, and the valve needle 9 is fixed, thereby effectively avoiding the phenomenon that the valve needle 9 is eccentric due to the change of injection molding pressure in the injection molding process, effectively prolonging the service life of the mold and improving the production efficiency of the mold.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. A hot runner valve needle positioning assembly comprising a hot runner (1), characterized in that: the utility model discloses a hot runner, including hot runner (1), nozzle (3) and connecting groove (11) are equipped with to the exit end inner wall of hot runner (1), connecting pipe (4) have been inlayed to the inside of connecting groove (11), nozzle (3) are kept away from to connecting pipe (4), the centre of nozzle (3) is equipped with centre bore (5), the inner wall that centre bore (5) are close to hot runner (1) one end is equipped with helicla flute (6).
2. A hot runner valve needle positioning assembly as claimed in claim 1, wherein: the inside of hot runner (1) is equipped with needle (9), needle (9) embedding centre bore (5), and needle (9) pass helical groove (6).
3. A hot runner valve needle positioning assembly as claimed in claim 2, wherein: the one end that hot runner (1) is close to nozzle (3) evenly is equipped with a plurality of through-holes (12), connecting pipe (4) are equipped with spacing groove (14) towards the terminal surface of through-hole (12).
4. A hot runner valve needle positioning assembly as claimed in claim 3, wherein: the through holes (12) are internally embedded with balls (13), and one ends of the balls (13) penetrate through the through holes (12) and are embedded into the limiting grooves (14).
5. A hot runner valve needle positioning assembly as defined in claim 4, wherein: one end of the hot runner (1) close to the nozzle (3) is sleeved with a sleeve (2), and a limiting block B (10) is arranged on the end face, facing the through hole (12), of the sleeve (2).
6. A hot runner valve needle positioning assembly as claimed in claim 5, wherein: two limiting blocks A (7) are arranged on the outer ring of one end, close to the nozzle (3), of the hot runner (1), and springs (8) are arranged on the back face, facing the nozzle (3), of the limiting blocks B (10).
7. A hot runner valve needle positioning assembly as defined in claim 6, wherein: the spring (8) is sleeved on the hot runner (1), a sealing ring (15) is arranged on the inner side of the connecting groove (11), and the connecting pipe (4) extrudes the sealing ring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321634183.3U CN220075427U (en) | 2023-06-26 | 2023-06-26 | Hot runner valve needle positioning assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321634183.3U CN220075427U (en) | 2023-06-26 | 2023-06-26 | Hot runner valve needle positioning assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220075427U true CN220075427U (en) | 2023-11-24 |
Family
ID=88815180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321634183.3U Active CN220075427U (en) | 2023-06-26 | 2023-06-26 | Hot runner valve needle positioning assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220075427U (en) |
-
2023
- 2023-06-26 CN CN202321634183.3U patent/CN220075427U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101098775A (en) | Valve stem having a reverse taper | |
| CN1024453C (en) | Combined automatic injection nozzle with anti-reflux and anti-leak junction | |
| CN220075427U (en) | Hot runner valve needle positioning assembly | |
| US20040037914A1 (en) | Injection mold having hot-runner mold | |
| CN2593999Y (en) | Color replaceable nozzles for hot flow channels for plastic injection | |
| CN101214719B (en) | Embedded forming method and mold for embedded forming | |
| CN208247344U (en) | A kind of encapsulation die for thin wall component | |
| CN216329716U (en) | Quick sealing plug and injection mold cooling water path | |
| CN108481682A (en) | A kind of encapsulation die and encapsulation methods for thin wall component | |
| CN210758914U (en) | Novel mold core cooling structure | |
| CN214726141U (en) | Valve needle type hot nozzle with mold insert | |
| CN212826613U (en) | Novel hot runner structure | |
| CN206287468U (en) | It is a kind of can the deformation of anti-needle-valve injection plastic mould | |
| CN114633439B (en) | TPU net and extrusion equipment thereof | |
| CN213107978U (en) | Novel nozzle core structure applied to hot runner | |
| CN211730059U (en) | Cold nozzle structure capable of preventing injection molding solidification of liquid silica gel mold | |
| CN115911947A (en) | High-frequency connector with integrated inner core and using method thereof | |
| CN214820500U (en) | Flow passage structure of injection mold | |
| CN207643604U (en) | Heat-insulating hot channel injection mold with floating type sprue cup | |
| CN210705790U (en) | High-speed multi-cavity bottle blank mold | |
| CN213260869U (en) | Hot runner needle valve hot nozzle | |
| CN206765238U (en) | The firm pressure pipe mold of locked mode | |
| CN206230811U (en) | A kind of reflector injection mold | |
| CN212352717U (en) | Nozzle and hot runner device | |
| CN218080403U (en) | Metal powder injection molding concave-convex wheel die with one die and multiple cavities for heat engine nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |