CN210617178U - Valve needle guiding hot nozzle tip and hot runner system - Google Patents
Valve needle guiding hot nozzle tip and hot runner system Download PDFInfo
- Publication number
- CN210617178U CN210617178U CN201921053635.2U CN201921053635U CN210617178U CN 210617178 U CN210617178 U CN 210617178U CN 201921053635 U CN201921053635 U CN 201921053635U CN 210617178 U CN210617178 U CN 210617178U
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- nozzle tip
- hot
- hot nozzle
- valve needle
- needle
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Abstract
The utility model belongs to the technical field of the hot runner, especially, relate to a hot mouth point of needle direction and hot runner system. Aiming at the defects existing in the prior art, the technical problem to be solved by the utility model is to provide a valve needle guiding hot nozzle tip. In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the utility model provides a hot mouth point of needle direction, hot mouth point periphery wall is equipped with string platform and pressure cap fitting surface from top to bottom according to the preface, be equipped with the passageway that supplies the needle to pass in the hot mouth point, the hot mouth point is used for preventing that the needle from taking place the guiding mechanism of beat at reciprocating the in-process in the shaping of passageway inner wall, guiding mechanism and needle contact are used for the direction.
Description
Technical Field
The utility model belongs to the technical field of the hot runner, especially, relate to a hot mouth point of needle direction and hot runner system.
Background
The hot runner system directly conveys the molten plastic into the die cavity through a precisely designed splitter plate and a hot nozzle by a precise temperature control means. The hot runner system has the other characteristic that the hot nozzle directly injects molten plastic into the mold cavity, and the sprue is naturally disconnected in the demolding process, so that pouring channel waste materials caused by the traditional injection molding process are eliminated, the additional heat caused by the waste materials is eliminated except for the post-processing procedure of removing the glue channel waste materials, the cooling period is shortened, and the faster production period is obtained.
However, the hot runner tip plays a role in sealing glue and simultaneously plays a role in guiding when the valve needle moves up and down, so that the gate is deformed after long-time production operation, and burrs occur on the gate and the glue cannot be sealed due to the influence of factors such as thermal expansion of the length of the valve needle, processing dimensional tolerance of a template and the like. The valve needle guiding structure is of great importance.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a needle direction hot nozzle point, set up guiding mechanism in its hot nozzle point, make needle accurate operation motion from top to bottom in hot nozzle point through guiding mechanism.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a hanging table and a pressing cap matching surface are sequentially arranged on the outer peripheral wall of a hot nozzle tip from top to bottom, a channel for the valve needle to pass through is formed in the hot nozzle tip, a guide mechanism used for preventing the valve needle from deflecting in the up-and-down moving process is formed on the inner wall of the channel of the hot nozzle tip, and the guide mechanism is in contact with the valve needle for guiding; the guide mechanism comprises four guide rib positions which are formed on the inner wall of the channel and are uniformly distributed in the circumferential direction, a circular valve needle hole is formed around each guide rib position, and a flow channel hole is formed between every two adjacent guide rib positions.
The valve needle guiding hot nozzle tip is characterized in that the guide rib positions comprise an arc edge I, an arc edge II, an arc edge III and an arc edge IV, the arc edge I is connected with the inner wall of the channel, the arc edge III is an inner concave surface which is contacted with the valve needle, and a flow channel hole is formed between the arc edges II and the arc edges IV of every two adjacent guide rib positions.
According to the valve needle guiding hot nozzle tip, the end part of one end of the guiding rib position is provided with the R angle structure, and the end part of the other end of the guiding rib position is provided with the C angle structure.
The hot nozzle tip is sleeved with the nozzle tip pressing cap, the outer peripheral wall of the nozzle tip pressing cap is sequentially provided with hot nozzle mounting threads, a wrench position and a sealing glue matching surface from top to bottom, and a nozzle tip matching hole is formed in the nozzle tip pressing cap.
A hot-runner system comprising at least one valve pin as described in any one of the above directed to a hot nozzle tip.
The utility model discloses hot mouth of needle direction mouth point and hot runner system's advantage is:
1. the utility model discloses hot mouth point of needle direction and hot runner system increase needle guide structure in the structure, the rib position that leads promptly. This structure makes the needle no longer rely on the runner direction in the up-and-down motion operation, has avoided the direct direction of the gluey runner, and the effectual long-time market operation back runner that has avoided harms and warp, effectively avoids product quality problems such as product deckle edge, improves the appearance quality who moulds the piece, can effectively improve the appearance quality who moulds the piece product, reduces hot runner system's maintenance, improves hot runner system's whole performance.
Drawings
FIG. 1 is a schematic view of the structure of the hot nozzle tip of the present invention;
fig. 2 is a top view of the present invention in fig. 1;
FIG. 3 is a perspective view of the hot nozzle tip of the present invention;
FIG. 4 is a perspective view of the hot nozzle tip of the present invention;
FIG. 5 is a schematic view of the structure of the guide rib of the present invention;
FIG. 6 is a schematic view of the structure of the tip pressing cap of the present invention;
fig. 7 is a schematic structural view of the hot nozzle tip of the hot runner system according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Embodiment 1, as shown in fig. 1 and 2, a valve needle guiding hot nozzle tip, where a hanging table 11 and a cap pressing matching surface 12 are sequentially arranged on an outer peripheral wall of a hot nozzle tip 1 from top to bottom, a channel 13 for a valve needle to pass through is arranged in the hot nozzle tip 1, a guide mechanism 14 for preventing the valve needle from deflecting during up-and-down movement is formed on an inner wall of the channel 13 of the hot nozzle tip 1, and the guide mechanism 14 is in contact with the valve needle for guiding; the guide mechanism 14 comprises four guide rib positions 141 formed on the inner wall of the channel 13 and uniformly distributed in the circumferential direction, a circular valve needle hole 142 is formed around each of the four guide rib positions 141, and a flow passage hole 143 is formed between every two adjacent guide rib positions 141.
In embodiment 3, on the basis of embodiment 2, as shown in fig. 1, 2, 3 and 4, an R-angle structure 1415 is provided at one end of the guiding rib 141, and a C-angle structure 1416 is provided at the other end of the guiding rib 141.
Embodiment 4, on the basis of embodiment 3, as shown in fig. 1, 2, 3, 4, 5, and 6, a tip pressing cap 2 is sleeved on the hot tip 1, a hot tip mounting thread 21, a wrench position 22, and an adhesive sealing matching surface 23 are sequentially disposed on the outer peripheral wall of the tip pressing cap 2 from top to bottom, and a tip matching hole 24 is disposed in the tip pressing cap 2.
As shown in fig. 7, the machining and installation of the valve needle guide hot nozzle tip: the hot nozzle tip 1 is provided with a valve needle guide mechanism 14, a hanging platform 11 and a press cap matching surface 12. The nozzle tip pressing cap 2 is matched with the hot nozzle tip 1, and the structure comprises a hot nozzle mounting thread 21, a wrench position 22, an adhesive sealing matching surface 23 and a nozzle tip matching hole 24. The structure is assembled in sequence, the hot nozzle tip 8 is firstly arranged in the hot nozzle body 5, the hot nozzle tip pressing cap 2 is arranged by matching, fixing and guiding the hot nozzle tip through the hanging table 11, the hot nozzle tip pressing cap 2 is connected with the hot nozzle body 5 through the hot nozzle mounting thread 21 and simultaneously fixes the hot nozzle tip 1, and finally the whole system is arranged in a mold cavity to form a complete hot runner system.
Instructions for use: the injection molding plastic is connected with a hot runner system through a locating ring 8, the plastic is injected into an injection nozzle body 3 through an SR circular arc 71 on an injection nozzle head 7, then the injection nozzle body runner 31 is injected into a flow distribution plate 4, the plastic is poured into a body runner 51 of a hot nozzle body 5 through a flow distribution plate runner 41 from the flow distribution plate runner 4, the valve needle 6 moves up and down in the pouring operation through a guide mechanism 14 on a hot nozzle tip 1, and then the injection molding is completed in a mold cavity through a nozzle head of the hot nozzle tip 8.
The present invention has been described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments. The present invention can be modified or modified by those skilled in the art without departing from the technical idea of the present invention, and such modifications or modifications naturally fall within the scope of the present invention.
Claims (5)
1. A valve needle direction hot nozzle tip is characterized in that: the outer peripheral wall of the hot nozzle tip (1) is sequentially provided with a hanging table (11) and a pressing cap matching surface (12) from top to bottom, a channel (13) for a valve needle to pass through is formed in the hot nozzle tip (1), a guide mechanism (14) for preventing the valve needle from deflecting in the up-and-down moving process is formed on the inner wall of the channel (13) of the hot nozzle tip (1), and the guide mechanism (14) is in contact with the valve needle for guiding; guiding mechanism (14) are including the shaping in four direction muscle positions (141) that passageway (13) inner wall circumference equipartition set up, four direction muscle positions (141) are around being formed with circular valve pinhole (142), be formed with flow channel hole (143) between every two adjacent direction muscle positions (141).
2. The valve pin-guided hot nozzle tip as claimed in claim 1, wherein: the guide rib positions (141) comprise arc edges I (1411), arc edges II (1412), arc edges III (1413) and arc edges IV (1414), the arc edges I (1411) are connected with the inner wall of the channel (13), the arc edges III (1413) are inner concave surfaces which are in contact with the valve needle, and flow channel holes (143) are formed between the arc edges II (1412) and the arc edges IV (1414) of every two adjacent guide rib positions (141).
3. The valve pin-guided hot nozzle tip of claim 2, wherein: an R-angle structure (1415) is arranged at one end of the guide rib position (141), and a C-angle structure (1416) is arranged at the other end of the guide rib position (141).
4. The valve pin-guided hot nozzle tip of claim 3, wherein: the hot nozzle tip (1) is sleeved with a tip pressing cap (2), the outer peripheral wall of the tip pressing cap (2) is sequentially provided with a hot nozzle mounting thread (21), a spanner position (22) and an adhesive sealing matching surface (23) from top to bottom, and a nozzle tip matching hole (24) is formed in the tip pressing cap (2).
5. A hot-runner system, comprising: the hot runner system includes at least one valve pin according to any one of claims 1 to 4 directed to a hot nozzle tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921053635.2U CN210617178U (en) | 2019-07-08 | 2019-07-08 | Valve needle guiding hot nozzle tip and hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921053635.2U CN210617178U (en) | 2019-07-08 | 2019-07-08 | Valve needle guiding hot nozzle tip and hot runner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210617178U true CN210617178U (en) | 2020-05-26 |
Family
ID=70758432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921053635.2U Active CN210617178U (en) | 2019-07-08 | 2019-07-08 | Valve needle guiding hot nozzle tip and hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210617178U (en) |
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2019
- 2019-07-08 CN CN201921053635.2U patent/CN210617178U/en active Active
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