CN218615222U - Needle valve type silica gel cold nozzle with template needing to be flicked - Google Patents
Needle valve type silica gel cold nozzle with template needing to be flicked Download PDFInfo
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- CN218615222U CN218615222U CN202223245429.6U CN202223245429U CN218615222U CN 218615222 U CN218615222 U CN 218615222U CN 202223245429 U CN202223245429 U CN 202223245429U CN 218615222 U CN218615222 U CN 218615222U
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- needle
- cold
- silica gel
- flange
- runner
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a flick through back mould of moulding plastics and realize quick, accurate moulding plastics, the template that reduces the spoilage of runner needs to flick needle valve formula silica gel and chews, chew the body including cold, the cylinder of this internal needle and the motion of drive needle is chewed at the cold in the setting, the cylinder top is provided with the end cover, end cover and cold are chewed and are provided with the dish shell fragment between the body, the cold inside of chewing the body is run through and is provided with the runner, be provided with the body overcoat on the outer wall of cold body of chewing, cold body of chewing is chewed the tip and is connected with the flange, be provided with the play jiao kou with the runner intercommunication on the flange, cold chew and be provided with the needle guide ring between body and the flange, be provided with the body overcoat boss with mould looks adaptation on the body overcoat, needle one end is connected on the piston in the cylinder, the other end passes the runner under the drive of piston and realizes the needle seal to stretching out the mould from a jiao kou, the utility model relates to mould cold technical field of chewing.
Description
Technical Field
The utility model relates to a cold field of chewing of mould especially relates to a template needs bullet to open needle valve formula silica gel and chews cold.
Background
Silica gel is in liquid state when low temperature, can become solid state when normal atmospheric temperature, and ordinary plastic product shaping needs to use hot runner system to heat it into fused plastics after, injects the mould die cavity internal cooling shaping, and silica gel product shaping needs to be chewed through cold runner cold and realizes, and cold runner cold is chewed including open cold and is chewed with needle valve formula cold, and needle valve formula cold is chewed and can be controlled the fusion position of plastics, makes the goods have better outward appearance and shaping quality, improves the product uniformity.
In the prior art, a valve needle is usually fixed on a cylinder piston to perform injection molding along with the reciprocating motion of the piston in the cylinder, glue is sealed on a mold after injection molding, when the mold is injected with a cold nozzle, the mold is generally fixed to perform injection molding, and the valve needle is fed up and down to move to easily insert a mold sprue when in use, so that the appearance of the sprue and the service life of the mold are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide a template and need play needle valve formula silica gel cold chew, play through the back mould of moulding plastics and open and realize quick, accurate moulding plastics, reduce the spoilage of runner.
The technical scheme of the utility model is that: the utility model provides a template needs bullet to open needle valve formula silica gel and coldly chews, is in including cold body, the setting of chewing this internal needle and drive of chewing the cylinder of needle motion, the cylinder top is provided with the end cover, the end cover with be provided with dish-shaped shell fragment between the cylinder, the cold inside of chewing the body runs through and is provided with the runner, be provided with the body overcoat on the outer wall of cold body of chewing, the cold body of chewing is chewed the point department and is connected with the flange, be provided with on the flange with the play jiao kou of runner intercommunication, be provided with the needle guide ring between cold body and the flange, be provided with the body overcoat boss with mould looks adaptation on the body overcoat, needle one end is connected on the piston in the cylinder, the other end is in pass under the drive of piston the runner is followed it realizes the needle to seal to go out jiao kou.
According to the above technical scheme, the needle valve passes along with the piston under the drive of cylinder the runner with go out glue mouthful with mould runner adaptation, the needle valve stretches out and realizes the needle to seal the mould, the needle guide ring plays the positioning action to the needle, guarantees that the needle is concentric with the mould runner when feed motion, prevents that the valve needle of decentraction from inserting and hindering the mould runner, influences the life of mould runner outward appearance and mould, butterfly shell fragment lets the cold body of chewing have certain elasticity activity space, effectively reduces machining error and the phenomenon of leaking glue appears, body overcoat boss and the cooperation of mould trompil play the location fixed action when the mould bullet back, prevent that the cold mouth from rocking and influence the compound die.
The side wall of the cold nozzle body is provided with double spiral grooves, and a cooling cavity is formed between the double spiral grooves and the body outer sleeve. Therefore, the cooling cavity is used for containing water as cooling liquid, and the double spiral grooves carry the water in a spiral circulating manner, so that the water flows more uniformly, the cold and heat balance in the flow channel is ensured, and the flowing stability and smoothness of the sizing materials are facilitated.
A needle pressing sleeve gasket is arranged between the valve needle and the air cylinder, and an anti-rotation pin is arranged on the needle pressing sleeve gasket. It follows that the anti-rotation pins serve to make the connection more stable.
The valve needle is in the needle pressing sleeve gasket upper and lower both ends all are provided with RPS double-purpose and seal. Therefore, the RPS dual-purpose seal uses two dual seals, so that the RPS dual-purpose seal is not easy to leak glue and is more durable.
And a needle pressing screw is arranged between the valve needle and the piston. Therefore, the needle pressing screw is beneficial to the smooth feeding motion of the valve needle under the driving of the piston.
An inclination exists between the end face of the flange and the glue outlet, and the end part of the flange is kept away. Therefore, the inclination of the flange is two degrees less than that of the opening of the die, and the flange can play a role in guiding and correcting when the die is closed, so that the phenomenon that the closing is influenced by too much matching is avoided.
The cold mouth body is provided with a special-shaped sealing ring groove at the joint of the cold mouth body and the flange. Therefore, the special-shaped sealing ring enables the sealing ring to be loosened in pressing, the sealing ring is not easy to damage and is more durable, and the water sealing effect is better.
A gap exists between the valve needle and the glue outlet. Therefore, the clearance between the valve needle and the glue outlet is used for preventing the valve needle from moving unsmoothly due to processing errors, but the clearance is not too large, and glue can leak due to too large clearance after the die is bounced open.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the mold before ejection;
fig. 4 is a schematic view of the mold after ejection.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1-4, the utility model relates to a template needs bullet open needle valve formula silica gel cold to chew, chew body 1, set up including cold and be in the cold drive of needle 2 in chewing body 1 cylinder 3 of needle 2 motion, cylinder 3 top is provided with end cover 4, end cover 4 with be provided with dish shell fragment 5 between the cylinder 3, the inside of cold chewing body 1 is run through and is provided with runner 11, be provided with body overcoat 6 on the outer wall of cold chewing body 1, cold chewing body 1 and chewing sharp department and be connected with flange 7, be provided with on the flange 7 with the play jiao kou 71 of runner 11 intercommunication, be provided with needle guide ring 8 between cold chewing body 1 and the flange 7, be provided with the body overcoat 61 with mould 100 looks adaptation on the body overcoat 6, needle 2 one end is connected on the piston 9 in the cylinder 3, the other end is in pass under the drive of piston 9 runner 11 follows it is right to go out jiao kou 71 stretch out the runner 101 on the mould 100 realizes the needle and seals.
The side wall of the cold nozzle body 1 is provided with a double-spiral groove 12, a cooling cavity is formed between the double-spiral groove 12 and the body outer sleeve 6, a needle pressing sleeve gasket 21 is arranged between the valve needle 2 and the cylinder 3, an anti-rotation pin 22 is arranged on the needle pressing sleeve gasket 21, the upper end and the lower end of the needle pressing sleeve gasket 21 of the valve needle 2 are both provided with RPS dual-purpose seals 23, a needle pressing screw 91 is arranged between the piston 9 and the valve needle 2, an inclination 72 exists between the end face of the flange 7 and the glue outlet 71, an empty-avoiding groove 73 is arranged on the end face of the flange 7, a special-shaped sealing ring groove 13 is arranged at the joint of the cold nozzle body 1 and the flange 7, and a gap 74 exists between the valve needle 2 and the glue outlet 71.
The utility model discloses a work flow does: cold chew body 1 aims at the runner on mould 100 and moulds plastics, valve needle 2 moves up along with piston 9 under the drive of cylinder 3, liquid silica gel flows out downwards from glue outlet 71 through runner 11 and moulds plastics mould 100, when piston 9 moves down, valve needle 2 moves down along with piston 9, valve needle 2 blocks up glue outlet 71, the circulation of liquid silica gel is cut off, it stops to mould plastics, mould 100 pops open, in this embodiment, before mould 100 does not pop open, the terminal surface of valve needle 2 and mould 100 runner adaptation, valve needle 2 terminal surface inclination 72 seals glue with mould 100, after mould 100 pops open, valve needle 2 terminal surface inclination 72 seals glue with flange 7.
Finally, it should be emphasized that the above-described embodiments are not intended to limit the present invention, and that many variations and modifications may be made by those skilled in the art, all without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a template needs bullet to open needle valve formula silica gel cold mouth which characterized in that: including cold chew body (1), set up and be in cold chew cylinder (3) that needle (2) drive in body (1) needle (2) motion, cylinder (3) top is provided with end cover (4), end cover (4) with be provided with dish shell fragment (5) between cylinder (3), the inside of cold chew body (1) is run through and is provided with runner (11), be provided with body overcoat (6) on the outer wall of cold chew body (1), cold chew body (1) and chew the point and be connected with flange (7), be provided with on flange (7) with go out jiao kou (71) of runner (11) intercommunication, be provided with between cold chew body (1) and flange (7) needle guide ring (8), be provided with body overcoat boss (61) with mould (100) looks adaptation on body overcoat (6), needle (2) one end is connected on piston (9) in cylinder (3), the other end is in piston (9) drive is passed runner (11) follow it realizes to go out jiao kou (71) on the mould mouth (101).
2. The template spring-open needle valve type silica gel cold nozzle according to claim 1, characterized in that: the side wall of the cold nozzle body (1) is provided with double spiral grooves (12), and a cooling cavity is formed between the double spiral grooves (12) and the body outer sleeve (6).
3. The template spring-open needle valve type silica gel cold nozzle according to claim 1, characterized in that: a needle pressing sleeve gasket (21) is arranged between the valve needle (2) and the cylinder (3), and an anti-rotation pin (22) is arranged on the needle pressing sleeve gasket (21).
4. The template spring-open needle valve type silica gel cold nozzle according to claim 3, characterized in that: the upper end and the lower end of the needle pressing sleeve gasket (21) of the valve needle (2) are provided with RPS dual-purpose seals (23).
5. The template spring-open needle valve type silica gel cold nozzle according to claim 1, characterized in that: a needle pressing screw (91) is arranged between the piston (9) and the valve needle (2), and the valve needle (2) is connected with the needle pressing screw (91) through a valve needle cushion block (92).
6. The template spring-open needle valve type silica gel cold nozzle according to claim 1, characterized in that: an inclination (72) exists between the end face of the flange (7) and the glue outlet (71), and a clearance groove (73) is formed in the end face of the flange (7).
7. The template spring-open needle valve type silica gel cold nozzle according to claim 1, characterized in that: and a special-shaped sealing ring groove (13) is formed in the joint of the cold nozzle body (1) and the flange (7).
8. The template spring-open needle valve type silica gel cold nozzle according to claim 1, characterized in that: a gap (74) is formed between the valve needle (2) and the glue outlet (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223245429.6U CN218615222U (en) | 2022-12-05 | 2022-12-05 | Needle valve type silica gel cold nozzle with template needing to be flicked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223245429.6U CN218615222U (en) | 2022-12-05 | 2022-12-05 | Needle valve type silica gel cold nozzle with template needing to be flicked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218615222U true CN218615222U (en) | 2023-03-14 |
Family
ID=85453987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223245429.6U Active CN218615222U (en) | 2022-12-05 | 2022-12-05 | Needle valve type silica gel cold nozzle with template needing to be flicked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218615222U (en) |
-
2022
- 2022-12-05 CN CN202223245429.6U patent/CN218615222U/en active Active
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