CN211968327U - High-temperature needle valve type structure - Google Patents
High-temperature needle valve type structure Download PDFInfo
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- CN211968327U CN211968327U CN202020584303.3U CN202020584303U CN211968327U CN 211968327 U CN211968327 U CN 211968327U CN 202020584303 U CN202020584303 U CN 202020584303U CN 211968327 U CN211968327 U CN 211968327U
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Abstract
The utility model relates to the technical field of hot runners, in particular to a high-temperature needle valve type structure, which comprises a flat cylinder, a nozzle body, a valve needle, a runner plate, a material channel, a heater and a feeding pipe; the material channel is provided with a beryllium copper nozzle core and an alloy nozzle core, and a titanium alloy nozzle head is arranged outside the alloy nozzle core; the flat cylinder comprises an elastic piece, a valve body, a cylinder body and a cylinder cover, wherein the cylinder body and the cylinder cover are enclosed to form a flat air chamber, the valve body is provided with a flat movable plate, the flat movable plate is provided with a first mounting column, the cylinder cover is provided with a second mounting column, the cylinder body is provided with a through hole, and the cylinder body is provided with two air nozzles. The utility model has good glue sealing effect and good wear resistance and corrosion resistance; the titanium alloy nozzle head is matched with the beryllium copper nozzle core and the alloy nozzle core to conduct heat conduction, so that high temperature is achieved during glue discharging, a stable injection molding effect is achieved, and the molding quality of sealing glue is ensured; the air chamber is flat, so that the capacity of the air chamber is reduced, the pressure of the air chamber is increased during air suction, and the sensitivity and the efficiency are improved.
Description
Technical Field
The utility model belongs to the technical field of the technique of hot runner and specifically relates to indicate a high temperature needle valve formula structure.
Background
At present, the needle valve that internal hot runner industry used all leads to glue mouthful temperature inadequately and the needle seals glues the not enough that beats not in place to ultra-thin plastic part, engineering material plastic part, gluey mouthful temperature radiating block or plastic raw and other materials crystallization soon, and the main problem is: the nozzle core of the hot nozzle is made of single beryllium copper, and the beryllium copper is easy to wear because of low hardness in the injection molding process and cannot ensure the heat of a glue opening, so that the molding quality of glue sealing is influenced; in addition, the needle valve is mainly driven by the cylinder, and the inside shape of current cylinder is circular for the space in the cylinder is big, leads to needing to pour into more gas and just can drive the needle action toward the cylinder, has the low and inefficient problem of sensitivity.
Disclosure of Invention
The utility model discloses problem to prior art provides a high temperature needle valve formula structure.
In order to solve the technical problem, the utility model discloses a following technical scheme: a high-temperature needle valve type structure comprises a flat cylinder, a nozzle body, a valve needle, a runner plate, a material channel, a heater and a feeding pipe; the heater is arranged on the outer side of the nozzle body, the runner plate is arranged on the upper portion of the nozzle body, the material channel is arranged in the nozzle body, the feeding pipe is communicated with a feeding port of the material channel, the outer side of the material channel is provided with a beryllium copper nozzle core and an alloy nozzle core from top to bottom, a titanium alloy nozzle head is arranged outside the alloy nozzle core, the valve needle penetrates through the runner plate and extends into the material channel, and the valve needle is connected with the material channel in a sliding manner; the flat cylinder includes the elastic component, the valve body, the cylinder body and be used for the cylinder cap of being connected with the cylinder body, cylinder body and cylinder cap enclose to close and form flat air chamber, the valve body sets up in flat air chamber, the valve body is equipped with the flat fly leaf that is used for sliding connection in flat air chamber, the upper portion of flat fly leaf is equipped with first erection column, the cylinder cap is equipped with and is used for the second erection column with first erection column complex, first erection column is located to the pot head of elastic component, the second erection column is located to the pot head of elastic component, flat fly leaf is connected with the needle, the needle stretches out the cylinder body suddenly, the bottom of cylinder body is equipped with the through-hole that supplies the needle to wear out, the bottom of cylinder body is equipped with two air cock.
Further, a first sealing ring is arranged at the joint of the cylinder cover and the cylinder body; the side wall of the flat movable plate is provided with a buffer ring which is used for abutting against the inner wall of the flat air chamber; and a second sealing ring is arranged on the inner wall of the through hole.
Furthermore, the valve needle, the beryllium copper nozzle core, the alloy nozzle core and the titanium alloy nozzle head are all coaxially arranged.
Furthermore, a heating wire is arranged in the heater.
Furthermore, the flat movable plate is provided with a pressing block and is connected with the valve needle through the pressing block.
Furthermore, the first sealing ring, the second sealing ring and the buffer ring are all made of rubber materials.
Further, the cylinder cover is provided with a plurality of mounting holes.
Furthermore, the number of the first mounting columns, the number of the second mounting columns and the number of the elastic pieces are at least two.
The utility model has the advantages that: the utility model has good glue sealing effect, and has good wear-resisting and corrosion-resisting performance by combining the beryllium copper nozzle core and the alloy nozzle core; the titanium alloy nozzle head is matched with the beryllium copper nozzle core and the alloy nozzle core to conduct heat conduction, so that the phenomenon that sealing glue is not in place due to insufficient heat of the nozzle head is avoided, high temperature is achieved during glue discharging, a stable injection molding effect is achieved, and the molding quality of the sealing glue is ensured;
the air chamber is flat, so that the capacity of the air chamber is reduced, the pressure of the air chamber is increased during air suction, and the sensitivity and the efficiency are improved.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a sectional view of the flat cylinder of the present invention.
Fig. 3 is the explosion structure diagram of the flat cylinder of the present invention.
Fig. 4 is an explosion structure diagram of the flat cylinder at another angle according to the present invention.
Reference numerals: 1. a flat cylinder; 2. a mouth body; 3. a valve needle; 4. a runner plate; 5. a material channel; 6. a heater; 7. a feed pipe; 8. a beryllium copper tip core; 9. an alloy nozzle core; 10. a titanium alloy tip; 11. a first mounting post; 12. briquetting; 13. a flat movable plate; 14. a cylinder body; 15. a cylinder cover; 16. a flat air chamber; 17. a second mounting post; 18. a through hole; 19. an air tap; 20. a first seal ring; 21. mounting holes; 22. a buffer ring; 23. and a second seal ring.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 4, a high temperature needle valve structure includes a flat cylinder 1, a nozzle body 2, a valve needle 3, a runner plate 4, a material channel 5, a heater 6 and a feeding pipe 7;
the heater 6 is arranged on the outer side of the nozzle body 2, the runner plate 4 is arranged on the upper portion of the nozzle body 2, the material channel 5 is arranged in the nozzle body 2, the feeding pipe 7 is communicated with a feeding port of the material channel 5, the outer side of the material channel 5 is provided with a beryllium copper nozzle core 8 and an alloy nozzle core 9 from top to bottom, a titanium alloy nozzle head 10 is arranged outside the alloy nozzle core 9, the valve needle 3 penetrates through the runner plate 4 and extends into the material channel 5, and the valve needle 3 is connected with the material channel 5 in a sliding manner;
the flat cylinder 1 comprises an elastic part, a valve body, a cylinder body 14 and a cylinder cover 15 connected with the cylinder body 14, the cylinder body 14 and the cylinder cover 15 enclose to form a flat air chamber 16, the valve body is arranged in the flat air chamber 16, the valve body is provided with a flat movable plate 13 connected in the flat air chamber 16 in a sliding way,
the upper part of the flat movable plate 13 is provided with a first mounting column 11, the cylinder cover 15 is provided with a second mounting column 17 matched with the first mounting column 11, one end of the elastic element is sleeved on the first mounting column 11, the other end of the elastic element is sleeved on the second mounting column 17, the flat movable plate 13 is connected with the valve needle 3,
the valve needle 3 protrudes out of the cylinder body 14, a through hole 18 for the valve needle 3 to penetrate through is arranged at the bottom of the cylinder body 14, two air nozzles 19 are arranged at the bottom of the cylinder body 14, and the two air nozzles 19 are respectively arranged at two sides of the through hole 18.
The utility model has good glue sealing effect, and has good wear-resisting and corrosion-resisting performance by adopting the combination of the beryllium copper nozzle core 8 and the alloy nozzle core 9; chew first 10 cooperation beryllium copper through titanium alloy and chew core 8, the alloy and chew core 9 and carry out the heat conduction, avoid chewing first heat and lead to sealing glue not in place because of chewing, reach high temperature when letting glue out, play stable injection molding effect, guarantee the shaping quality who seals glue.
Specifically, the flat cylinder 1 drives the valve needle 3 to move telescopically, so that the valve needle 3 extends out of the nozzle head, and the effect of sealing the valve needle 3 at a distance is achieved. The heater 6 plays a role in heating and is matched with the beryllium copper nozzle core 8, the alloy nozzle core 9 and the titanium alloy nozzle head 10 to conduct heat. The glue is sequentially heated and sealed by the feed pipe 7, the material channel 5 and the nozzle head. In addition, the air chamber is flat, so that the capacity of the air chamber is reduced, the pressure of the air chamber is increased during air suction, and the sensitivity and the efficiency are improved.
Specifically, the flat cylinder 1 is provided with two air nozzles 19 to enhance the air suction speed, and the two air nozzles 19 are respectively arranged at two sides of the through hole 18 to better suck air to drive the flat movable plate 13 to slide, so as to drive the movable rod to retract. At this time, the elastic member is compressed by force. When the air in the air chamber is pumped out, the flat movable plate 13 is reset under the elastic action of the elastic piece, thereby driving the movable rod to extend.
Specifically, the two ends of the elastic member (not shown in the drawings) are respectively sleeved on the first mounting column 11 and the second mounting column 17, so that the mounting stability of the elastic member is improved, and the elastic member can be an existing spring.
The beryllium copper nozzle core 8 and the alloy nozzle core 9 are arranged outside the discharge hole of the material channel 5.
The existing air cylinder has the defect of air leakage after being used for a long time, and the function failure of the air cylinder is easily caused. In this embodiment, a first sealing ring 20 is arranged at the joint of the cylinder cover 15 and the cylinder body 14; the side wall of the flat movable plate 13 is provided with a buffer ring 22 which is used for abutting against the inner wall of the flat air chamber 16; the inner wall of the through hole 18 is provided with a second sealing ring 23.
Specifically, two-layer sealing is realized through the first sealing ring 20 and the second sealing ring 23, the sealing degree of the flat movable plate 13 during sliding is ensured through the buffer ring 22, the problem of air leakage of the cylinder is avoided, and the service life is prolonged.
In this embodiment, the valve needle 3, the beryllium copper nozzle core 8, the alloy nozzle core 9 and the titanium alloy nozzle head 10 are all coaxially arranged. Ensure the smooth telescopic action of the valve needle 3
In this embodiment, a heater wire is provided in the heater 6.
In this embodiment, the flat movable plate 13 is provided with a pressing block 12, and the flat movable plate 13 is connected with the valve needle 3 through the pressing block 12. Specifically, the connection mode of the flat movable plate 13 and the pressing block 12 is a screw connection, so that the pressing block 12 is stably connected and is not easy to fall off.
In this embodiment, the first seal ring 20, the second seal ring 23, and the cushion ring 22 are made of rubber. This arrangement ensures the elasticity of the first seal ring 20, the second seal ring 23 and the cushion ring 22.
In this embodiment, the cylinder head 15 is provided with a plurality of mounting holes 21. The cylinder is conveniently fixed through external bolt installation.
In this embodiment, the number of the first mounting posts 11, the number of the second mounting posts 17, and the number of the elastic members are at least two. Wherein a set of elasticity reset assembly is constituteed to one of them first erection column 11, one of them elastic component and one of them second erection column 17, and another a set of elasticity reset assembly is constituteed to another first erection column 11, another elastic component and another second erection column 17, and two sets of elasticity reset assembly set up respectively in the both sides of fly leaf, improve the utility model discloses an elastic action guarantees the effect that resets of fly leaf.
In this embodiment, a sealing ring of the air nozzle 19 is disposed outside each air nozzle 19. The occurrence of air leakage at the air nozzle 19 is avoided.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (8)
1. A high temperature needle valve structure characterized by: comprises a flat cylinder (1), a nozzle body (2), a valve needle (3), a runner plate (4), a material channel (5), a heater (6) and a feeding pipe (7); the heater (6) is arranged on the outer side of the nozzle body (2), the runner plate (4) is arranged on the upper portion of the nozzle body (2), the material channel (5) is arranged in the nozzle body (2), the feeding pipe (7) is communicated with a feeding port of the material channel (5), a beryllium copper nozzle core (8) and an alloy nozzle core (9) are arranged on the outer side of the material channel (5) from top to bottom, a titanium alloy nozzle head (10) is arranged outside the alloy nozzle core (9), the valve needle (3) penetrates through the runner plate (4) and extends into the material channel (5), and the valve needle (3) is connected with the material channel (5) in a sliding manner; the flat cylinder (1) comprises an elastic part, a valve body, a cylinder body (14) and a cylinder cover (15) connected with the cylinder body (14), the cylinder body (14) and the cylinder cover (15) are enclosed to form a flat air chamber (16), the valve body is arranged in the flat air chamber (16), the valve body is provided with a flat movable plate (13) connected with the flat air chamber (16) in a sliding manner, the upper part of the flat movable plate (13) is provided with a first mounting column (11), the cylinder cover (15) is provided with a second mounting column (17) matched with the first mounting column (11), one end of the elastic part is sleeved on the first mounting column (11), the other end of the elastic part is sleeved on the second mounting column (17), the flat movable plate (13) is connected with the valve needle (3), the valve needle (3) protrudes out of the cylinder body (14), the bottom of the cylinder body (14) is provided with a through hole (18) for the valve needle (3) to penetrate out, and the bottom of the cylinder, the two air nozzles (19) are respectively arranged at two sides of the through hole (18).
2. A high temperature needle valve structure as defined in claim 1, wherein: a first sealing ring (20) is arranged at the joint of the cylinder cover (15) and the cylinder body (14); the side wall of the flat movable plate (13) is provided with a buffer ring (22) which is used for being abutted against the inner wall of the flat air chamber (16); the inner wall of the through hole (18) is provided with a second sealing ring (23).
3. A high temperature needle valve structure as defined in claim 1, wherein: the valve needle (3), the beryllium copper nozzle core (8), the alloy nozzle core (9) and the titanium alloy nozzle head (10) are all coaxially arranged.
4. A high temperature needle valve structure as defined in claim 1, wherein: a heating wire is arranged in the heater (6).
5. A high temperature needle valve structure as defined in claim 1, wherein: the flat movable plate (13) is provided with a pressing block (12), and the flat movable plate (13) is connected with the valve needle (3) through the pressing block (12).
6. A high temperature needle valve structure as defined in claim 2, wherein: the first sealing ring (20), the second sealing ring (23) and the buffer ring (22) are all made of rubber materials.
7. A high temperature needle valve structure as defined in claim 1, wherein: the cylinder cover (15) is provided with a plurality of mounting holes (21).
8. A high temperature needle valve structure as defined in claim 1, wherein: the number of the first mounting columns (11), the number of the second mounting columns (17) and the number of the elastic pieces are at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020584303.3U CN211968327U (en) | 2020-04-17 | 2020-04-17 | High-temperature needle valve type structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020584303.3U CN211968327U (en) | 2020-04-17 | 2020-04-17 | High-temperature needle valve type structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211968327U true CN211968327U (en) | 2020-11-20 |
Family
ID=73384831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020584303.3U Active CN211968327U (en) | 2020-04-17 | 2020-04-17 | High-temperature needle valve type structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211968327U (en) |
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2020
- 2020-04-17 CN CN202020584303.3U patent/CN211968327U/en active Active
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