CN204773367U - Novel valve needle guide sleeve - Google Patents
Novel valve needle guide sleeve Download PDFInfo
- Publication number
- CN204773367U CN204773367U CN201520595162.4U CN201520595162U CN204773367U CN 204773367 U CN204773367 U CN 204773367U CN 201520595162 U CN201520595162 U CN 201520595162U CN 204773367 U CN204773367 U CN 204773367U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- outer shroud
- guide face
- linking arm
- fairlead
- 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
- 238000001746 injection moulding Methods 0.000 claims abstract description 5
- 238000007598 dipping method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 12
- 230000008018 melting Effects 0.000 abstract description 12
- 238000002844 melting Methods 0.000 abstract description 12
- 238000004513 sizing Methods 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract 1
- 230000001055 chewing effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005325 percolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000015111 chews Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The novel valve needle guide sleeve comprises an outer ring embedded in an injection molding flow channel, an inner ring positioned in the outer ring and staggered with the outer ring in a clearance, and a connecting arm connected between the outer ring and the inner ring, wherein two sides of the top end of the connecting arm are respectively provided with a first flow guide surface, the first flow guide surfaces are gradually inclined towards the outer side of the connecting arm from top to bottom, and the top ends of the two first flow guide surfaces are in smooth transition; the upper end and the lower end of the outer surface of the inner ring are both provided with second flow guide surfaces which are gradually inclined outwards from the end part of the outer ring to the middle part of the outer ring. The utility model discloses have the second water conservancy diversion face that is located lower extreme on first water conservancy diversion face on the linking arm and the inner ring, it has played the uide bushing that reduces the needle and to the hindrance of melting sizing material for the through-flow hole between outer loop, the inner ring is than current uide bushing utensil and is equipped with better through-flow efficiency.
Description
Technical field
The utility model relates to a kind of valve core of needle valve annex, especially a kind of Novel valve needle fairlead.
Background technology
Existing needle-valve is all utilize the needle-like spool of himself to do axially-movable along the direction of valve body inner flow passage, allows needle-like spool (hereinafter referred to as " needle ") carry out shutoff or unlatching to valve port.But needle all can arrange a fairlead usually chewing in the injection molding channel extended in body to valve port, but fairlead of the prior art is because through flow hole is too small, water conservancy diversion weak effect, produces larger fluid resistance, has a strong impact on the flow efficiency of melting sizing material.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of Novel valve needle fairlead, under the prerequisite that guide effect is played to needle, enable the melting sizing material in runner successfully percolation cross this fairlead, reduce fairlead to the obstruction of melting sizing material.
For achieving the above object, the utility model adopts following technical scheme:
Novel valve needle fairlead, comprise the outer shroud be embedded in injection molding channel, in the inside of outer shroud and and outer shroud stagger gap inner ring, be connected to linking arm between outer shroud and inner ring, the both sides, top of linking arm are respectively arranged with the first guide face, first guide face from top to bottom tilts towards the outside of linking arm gradually, and the top of two first guide faces seamlessly transits; The two ends up and down of interior ring outer surface are provided with the second guide face, and this second guide face is outward-dipping gradually in the middle part of outer shroud by the end of outer shroud.
Preferably, the quantity of linking arm is multiple, and the plurality of linking arm is uniformly distributed at inside and outside periphery, and two adjacent linking arms, outer shroud, inner ring surround multiple through flow hole.
Preferably, the top ends of the first guide face is connected the bottom in the second guide face being positioned at upper end.
The beneficial effects of the utility model are:
Compared to prior art, needle fairlead of the present utility model, under the prerequisite that guide effect is played to needle, enable the melting sizing material in runner successfully percolation cross this fairlead, reduce fairlead to the obstruction of melting sizing material.This fairlead has the second guide face being positioned at the first guide face on linking arm and inner ring upper and lower side, serve the obstruction reducing this fairlead and cause melting sizing material, the through flow hole more existing fairlead through flow hole between this fairlead outer shroud, inner ring has higher flow efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is structural representation of the present utility model (overlooking);
Fig. 3 is the cross section view at Fig. 2 A-A place;
The schematic diagram that Fig. 4 is linking arm cross sectional shape of the present utility model when being streamlined;
Fig. 5 is the scheme of installation that the utility model is applied in needle-valve.
In figure: 1, fairlead; 2, body is chewed; 3, runner; 4, core is chewed; 5, valve port; 10, outer shroud; 11, linking arm; 110, the first guide face; 12, through flow hole; 20, inner ring; 22, through hole; 23, the second guide face.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further:
As Figure 1-5, Novel valve needle fairlead 1, this fairlead 1 is embedded in needle-valve in use, it moves up and down coaxially chewing in body 2 relatively to make needle, this fairlead 1 comprises outer shroud 10, inner ring 20, linking arm 11, outer shroud 10 is embedded in injection molding channel 3, inner ring 20 is positioned at the inside of outer shroud 10 and staggers gap with outer shroud 10, through hole 22 in inner ring 20 slides up and down for needle, linking arm 11 is connected between outer shroud 10 and inner ring 20, the both sides, top of this linking arm 11 are respectively arranged with the first guide face 110, first guide face 110 from top to bottom tilts towards the outside of linking arm 11 gradually, the top of two first guide faces 110 seamlessly transits.The two ends up and down of this inner ring 20 outer surface are provided with the second guide face 23, and this second guide face 23 is outward-dipping gradually in the middle part of outer shroud 10 by the end of outer shroud 10.When melting sizing material is through-flow in time chewing the runner 3 in body 2, melting sizing material is under the acting in conjunction flowing through the first guide face 110 and the second guide face 23, the fluid resistance that fairlead described in the utility model 1 pair of melting sizing material produces is less than using the fluid resistance produced during fairlead of the prior art, therefore, melting sizing material spray valve port 5 time pressure, flow velocity closer to it in runner 3 time state.The needle valve structure having installed fairlead 1 described in the utility model is as follows: body 2 lower end of chewing of needle-valve is provided with and chews core 4, and this lower end of chewing core 4 is valve port 5, and this upper surface of chewing core 4 offers near the side of inner edges sets mounting groove wherein for fairlead 1.
As the preferred scheme of one, as shown in Figure 2, the quantity of aforesaid linking arm 11 is multiple, and the plurality of linking arm 11 is uniformly distributed at inside and outside periphery, and two adjacent linking arms 11, outer shroud 10, inner ring 20 surround multiple through flow hole 12.Sum up can learn through inventor's test of many times, the quantity of this linking arm 11 is 3, and when the angle between adjacent linking arm 11 is 120 °, slide up and down, the flow efficiency of through flow hole 12 is the highest this fairlead 1 Absorbable organic halogens ground pilot valve coaxial needle.
In order to make fairlead 1 described in the utility model have better water conservancy diversion effect, as the preferred scheme of one, the top ends of the first guide face 110 is connected the bottom in the second guide face 23 being positioned at upper end.
In order to further reduce the obstruction of fairlead 1 pair of melting sizing material, as shown in Figure 4, linking arm 11 can be designed to its cross section is fusiform state wide at the top and narrow at the bottom.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.
Claims (3)
1. Novel valve needle fairlead, it is characterized in that: comprise the outer shroud be embedded in injection molding channel, in the inside of outer shroud and and outer shroud stagger gap inner ring, be connected to linking arm between outer shroud and inner ring, the both sides, top of linking arm are respectively arranged with the first guide face, first guide face from top to bottom tilts towards the outside of linking arm gradually, and the top of two first guide faces seamlessly transits; The two ends up and down of interior ring outer surface are provided with the second guide face, and this second guide face is outward-dipping gradually in the middle part of outer shroud by the end of outer shroud.
2. Novel valve needle fairlead as claimed in claim 1, is characterized in that: the quantity of linking arm is multiple, and the plurality of linking arm is uniformly distributed at inside and outside periphery, and two adjacent linking arms, outer shroud, inner ring surround multiple through flow hole.
3. Novel valve needle fairlead as claimed in claim 1, is characterized in that: the top ends of the first guide face is connected the bottom in the second guide face being positioned at upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520595162.4U CN204773367U (en) | 2015-08-07 | 2015-08-07 | Novel valve needle guide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520595162.4U CN204773367U (en) | 2015-08-07 | 2015-08-07 | Novel valve needle guide sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204773367U true CN204773367U (en) | 2015-11-18 |
Family
ID=54513491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520595162.4U Active CN204773367U (en) | 2015-08-07 | 2015-08-07 | Novel valve needle guide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204773367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978413A (en) * | 2019-12-28 | 2020-04-10 | 况仁鹏 | Valve needle nozzle core structure for hot runner and hot runner system comprising same |
| CN111941757A (en) * | 2020-09-10 | 2020-11-17 | 佛山市顺德区准控模具配件有限公司 | Injection mold hot runner structure and injection mold |
-
2015
- 2015-08-07 CN CN201520595162.4U patent/CN204773367U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978413A (en) * | 2019-12-28 | 2020-04-10 | 况仁鹏 | Valve needle nozzle core structure for hot runner and hot runner system comprising same |
| CN111941757A (en) * | 2020-09-10 | 2020-11-17 | 佛山市顺德区准控模具配件有限公司 | Injection mold hot runner structure and injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |