CN213675251U - Needle valve type nozzle device for hot runner system - Google Patents
Needle valve type nozzle device for hot runner system Download PDFInfo
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- CN213675251U CN213675251U CN202022668616.XU CN202022668616U CN213675251U CN 213675251 U CN213675251 U CN 213675251U CN 202022668616 U CN202022668616 U CN 202022668616U CN 213675251 U CN213675251 U CN 213675251U
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- nozzle
- needle
- valve
- hot runner
- runner system
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Abstract
The utility model discloses a needle valve formula nozzle device for hot runner system, be in including nozzle body, setting the nozzle of nozzle body head end and wear to establish needle in nozzle body and the nozzle, the inside cavity inner chamber that has of nozzle body, the inner chamber includes fluid entering area and the nozzle fixed area that arranges from top to bottom, the nozzle is fixed the nozzle fixed area, the needle via extend to behind the fluid entering area the play gluey hole of nozzle head end, the tail end of nozzle with be equipped with the needle guide pin bushing between the nozzle body, be equipped with the confession on the needle guide pin bushing the perforation that the needle passed, perforate with the coaxial setting in fluid entering area, the needle with perforation clearance fit. The utility model provides a needle valve formula nozzle device for hot runner system can solve the problem of needle and play gluey hole disalignment.
Description
Technical Field
The utility model belongs to the technical field of the hot runner, concretely relates to needle valve formula nozzle device for hot runner system.
Background
With the increasing popularization and application of the hot runner technology, the specific gravity of the hot runner mold in the plastic mold is gradually increased. The application of the needle valve type hot runner is increased more obviously, because the cooling time of a runner system is not restricted, a cold runner is not provided, and a finished piece can be ejected in time after being molded and solidified. The forming period of a plurality of thin-wall parts is short, so that the time and the cost are saved. The needle valve type is adopted to accurately control the production of precision parts.
The needle valve type hot runner system is simply a hot runner which closes and opens a glue outlet by moving a valve needle. The general problem of valve needle formula hot runner system exists now is that the needle is exactly not coaxial with the hole of glue discharging, and the needle is easy to be out of shape, and the gate end that is close to the needle does not have the direction, and hardness is high, shovels the runner easily, and the top hinders mould benevolence.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, the utility model aims to provide a needle valve formula nozzle device for hot runner system can solve the problem of needle and play gluey hole disalignment.
In order to solve these problems in the prior art, the utility model provides a technical scheme is:
a needle valve formula nozzle device for hot runner system, including the nozzle body, set up the nozzle of nozzle body head end and wear to establish needle in nozzle body and the nozzle, the inside cavity that has of nozzle body, the inner chamber includes fluid entering district and the nozzle fixed area that arranges from top to bottom, the nozzle is fixed the nozzle fixed area, the needle via extend to behind the fluid entering district the play jiao kou of nozzle head end, the tail end of nozzle with be equipped with the needle guide pin bushing between the nozzle body, be equipped with the confession on the needle guide pin bushing the perforation that the needle passed, perforation with the coaxial setting in fluid entering district, the needle with perforation clearance fit.
Furthermore, a first clamping ring and a second clamping ring which are arranged up and down are arranged on the outer wall of the nozzle, and the first clamping ring and the second clamping ring protrude out of the radial outer side of the nozzle.
Furthermore, a circle of lug boss is arranged on the inner wall of the nozzle fixing area close to the head end, so as to be abutted against the outer wall of the nozzle.
Further, the nozzle body is fixed in a flow distribution plate, and the fluid inlet area is communicated with a hot runner in the flow distribution plate.
Furthermore, a valve needle guide part is arranged at the upper end of the flow distribution plate, the tail end of the valve needle penetrates through the valve needle guide part, and a limiting block for limiting the valve needle at the upper end of the valve needle guide part is arranged on the valve needle.
For the scheme among the prior art, the utility model has the advantages that:
set up the needle guide pin bushing between nozzle tail end and nozzle body, needle and needle guide pin bushing clearance fit can guarantee that needle and play glue hole are coaxial, avoid destroying the problem that needle seals gluey face and mould play glue hole.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a needle valve nozzle assembly for a hot runner system according to an embodiment of the present invention;
wherein:
1. a nozzle body; 1-1, a fluid entry zone; 1-2, a nozzle fixing area; 1-3, a boss;
2. a nozzle; 2-1, a first clamping ring; 2-2, a second collar;
3. a valve needle; 3-1, a limiting block;
4. a valve needle guide sleeve;
5. a flow distribution plate; 5-1, Hot Runner
6. A valve needle guide.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Referring to fig. 1, the structural schematic diagram of the embodiment of the present invention provides a needle valve type nozzle device for a hot runner system, which includes a nozzle body 1, a nozzle 2 disposed at the head end of the nozzle body 1, and a needle 3 disposed in the nozzle body 1 and the nozzle 2, the nozzle body 1 has a hollow inner cavity therein, the inner cavity includes a fluid inlet area 1-1 and a nozzle fixing area 1-2 disposed up and down, the nozzle 2 is fixed at the nozzle fixing area 1-2, and the needle 3 extends to a glue outlet hole at the head end of the nozzle 2 after entering the fluid inlet area 1-1. The nozzle body 1 is fixed in a flow distribution plate 5, and the fluid inlet area 1-1 is communicated with a hot runner 5-1 in the flow distribution plate 5. The upper end of the flow distribution plate 5 is provided with a valve needle guide part 6, the tail end of the valve needle 3 penetrates through the valve needle guide part 6, and the valve needle 3 is provided with a limiting block 3-1 for limiting the valve needle 3 at the upper end of the valve needle guide part 6.
In order to guide the valve needle 3 and solve the problem that the valve needle 3 is not coaxial with the glue outlet hole, a valve needle guide sleeve 4 is arranged between the tail end of the nozzle 2 and the nozzle body 1, a through hole for the valve needle 3 to penetrate through is formed in the valve needle guide sleeve 4, the through hole and the fluid inlet area 1-1 are coaxially arranged, and the valve needle 3 is in clearance fit with the through hole, so that the coaxiality of the valve needle 3 and the glue outlet hole is ensured, and the problem that the glue sealing surface and the glue outlet hole of the valve needle are damaged is avoided.
In this example, the outer wall of the nozzle 2 is provided with a first retainer ring 2-1 and a second retainer ring 2-3 which are arranged up and down, and the first retainer ring 2-1 and the second retainer ring 2-2 are both protruded out of the radial outer side of the nozzle 2, so that the nozzle 2 can be fixed in the nozzle fixing area 1-1 of the nozzle body 1.
A circle of bosses 1-3 are arranged on the inner wall of the nozzle fixing area 1-1 close to the head end and are abutted against the outer wall of the nozzle 2, so that the mounting stability between the nozzle 2 and the nozzle fixing area 1-2 can be improved.
The above examples are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable one skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. A needle valve formula nozzle device for hot runner system, including nozzle body (1), set up in nozzle (2) of nozzle body (1) head end, and wear to establish needle (3) in nozzle body (1) and nozzle (2), nozzle body (1) inside has the cavity inner chamber, the inner chamber includes fluid entering district (1-1) and nozzle fixed area (1-2) that arrange from top to bottom, nozzle (2) are fixed in nozzle fixed area (1-2), needle (3) via fluid entering district (1-1) after extend to the play gluey hole of nozzle (2) head end, its characterized in that: a valve needle guide sleeve (4) is arranged between the tail end of the nozzle (2) and the nozzle body (1), a through hole for the valve needle (3) to pass through is formed in the valve needle guide sleeve (4), the through hole and the fluid entering area (1-1) are coaxially arranged, and the valve needle (3) is in clearance fit with the through hole.
2. The needle valve nozzle device for a hot runner system according to claim 1, wherein: the nozzle is characterized in that a first clamping ring (2-1) and a second clamping ring (2-2) which are arranged up and down are arranged on the outer wall of the nozzle (2), and the first clamping ring (2-1) and the second clamping ring (2-2) protrude out of the radial outer side of the nozzle (2).
3. The needle valve nozzle device for a hot runner system according to claim 2, wherein: a circle of bosses (1-3) are arranged on the inner wall of the nozzle fixing area (1-2) close to the head end and are abutted against the outer wall of the nozzle (2).
4. The needle valve nozzle device for a hot runner system according to claim 1, wherein: the nozzle body (1) is fixed in a flow distribution plate (5), and the fluid inlet area (1-1) is communicated with a hot runner (5-1) in the flow distribution plate (5).
5. The needle valve nozzle device for a hot runner system according to claim 4, wherein: the flow distribution plate is characterized in that a valve needle guide part (6) is arranged at the upper end of the flow distribution plate (5), the tail end of the valve needle (3) penetrates through the valve needle guide part (6), and a limiting block (3-1) for limiting the valve needle (3) at the upper end of the valve needle guide part (6) is arranged on the valve needle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022668616.XU CN213675251U (en) | 2020-11-18 | 2020-11-18 | Needle valve type nozzle device for hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022668616.XU CN213675251U (en) | 2020-11-18 | 2020-11-18 | Needle valve type nozzle device for hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213675251U true CN213675251U (en) | 2021-07-13 |
Family
ID=76733381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022668616.XU Active CN213675251U (en) | 2020-11-18 | 2020-11-18 | Needle valve type nozzle device for hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213675251U (en) |
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2020
- 2020-11-18 CN CN202022668616.XU patent/CN213675251U/en active Active
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