CN207578961U - A kind of hot nozzle of hydraulic type single-point needle valve - Google Patents
A kind of hot nozzle of hydraulic type single-point needle valve Download PDFInfo
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- CN207578961U CN207578961U CN201721338979.9U CN201721338979U CN207578961U CN 207578961 U CN207578961 U CN 207578961U CN 201721338979 U CN201721338979 U CN 201721338979U CN 207578961 U CN207578961 U CN 207578961U
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Abstract
The utility model discloses a kind of hot nozzle of hydraulic type single-point needle valve, including main filling nozzle, heater, rocking bar, pull rod, oil cylinder, stent, axis pin, valve needle cover, needle, left and right runner；For the thermal jet nozzle equipped with the main filling nozzle with having heaters, the main filling nozzle side opening is equipped with valve chamber, and the main filling nozzle valve chamber both sides are spirally connected there are two stent, and the stent lower section is equipped with thermal baffle；The stent is split type to be equipped with oil cylinder, is worn among stent and is equipped with axis pin and rocking bar；The valve needle cover is connect by pin with rocking bar, and the pull rod on the oil cylinder piston is swung by pin and rocking bar and connected；The main filling nozzle runner tilting branch is equipped with left runner and right runner, and the left and right runner passes through valve chamber from the left and right sides respectively, and convergence interflow is in nozzle runner in nozzle block；Using cylinder body and the split type configuration of thermal jet nozzle, thermal baffle blocks heat transfer and improves the sealing ring service life the utility model, and increase operating pressure manipulation is smooth, and split type configuration is easily installed maintenance.
Description
Technical field
The utility model is related to needle valve hot nozzle technical equipment field, more particularly to a kind of hot nozzle of hydraulic type single-point needle valve.
Background technology
Many hot runner system are broadly divided into pneumatic type and fluid pressure type, operation principle is main mostly using needle valve now
It is using solenoid valve control gas or liquid-driving piston, the needle of nozzle is then directly driven to move up and down by piston, is reached
The purpose of folding cast gate.
In the prior art, the hot nozzle of traditional single-point needle valve is by cylinder on thermal jet nozzle and main filling nozzle, and cylinder body is from main filling nozzle
On heating collar it is close, the drawback is that：1st, heat transfer causes sealing ring easy aging, the damage during the work time of cylinder, makes
It into cylinder leakage tester or even can not work normally, therefore may not apply to the plastic of high temperature material；2nd, modern plastic is in order to increase surface
Rigidity and anti-scratch performance, it will usually glass fibre is added in, and normal cylinder operating pressure only has 7bar -10bar, high glass
Plastic cement mobility is poor, the small pintle action for being difficult to push in melt of cylinder air pressure, causes sealing difficult；3rd, due to single-point needle valve
System is small, and part integrated level is high, cumbersome for installation, will dismantle hot mouth when safeguarding, safeguards being required for taking a long time every time.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of hot nozzle of hydraulic type single-point needle valve, for existing skill
Deficiency in art designs the hot nozzle of hydraulic type single-point needle valve, using cylinder body and the split type configuration of thermal jet nozzle, between cylinder body and thermal jet nozzle
It is separated using thermal baffle, blocks heat transfer and radiation of the thermal jet nozzle heater to cylinder body, reduce center housing temperature, it is close so as to improve
The service life of seal increases the working pressure range of cylinder, and manipulation is smooth, split type that installation maintenance of being more convenient for is configured, and reduces
Production cost improves hot flow path quality.
In order to achieve the above objectives, the technical solution of the utility model is as follows：A kind of hot nozzle of hydraulic type single-point needle valve, including master
Fill nozzle, heater, rocking bar, pull rod, oil cylinder, stent, thermal jet nozzle, axis pin, valve needle cover, pin, oil cylinder piston, needle, pull rod peace
Fill hole, valve needle cover mounting hole, thermal baffle, nozzle block, upper oil pipe, lower oil pipe, left runner, right runner, nozzle runner, feature
It is：
The thermal jet nozzle is provided centrally with nozzle runner, and needle, the valve are equipped in the nozzle runner of the thermal jet nozzle
Needle forms single-point type needle valve hot nozzle with thermal jet nozzle lower end；The thermal jet nozzle upper end integral type is provided with nozzle block, the nozzle block
It is above coaxially affixed to be provided with main filling nozzle, it is fitted closely outside the main filling nozzle and is provided with copper sheathing formula heater, the main Guan Zui sides
To opening, and be provided with valve chamber, be spirally connected on the main valve chamber two sides for filling nozzle there are two stent, be equipped with below the stent every
Heat shield；The stent extension, with main filling nozzle is split type is provided with oil cylinder, two internal stent centre positions are worn to connect and are provided with
Axis pin, it is movable on the axis pin to be configured with rocking bar；The needle rear end is equipped with valve needle cover, the valve needle cover by pin with
The inner end swing type of rocking bar connects, and is provided with pull rod on the oil cylinder piston of the oil cylinder, the pull rod passes through pin and rocking bar
Outboard end swing type connection；The main hot flow path tilting branch for filling nozzle is provided with left runner and right runner, the left stream
Road and right runner pass through valve chamber, and dock with two sections of oblique runners in nozzle block from the left and right sides respectively, and two sections tilt stream
It is projected in nozzle runner via needle valve hot nozzle at road convergence interflow.
External screw thread is provided on the pin, the pull rod mounting hole of the tie rod end is provided with internal thread, the needle
Valve needle cover mounting hole is provided with internal thread on set, the external screw thread of the pin respectively with pull rod mounting hole internal thread, valve needle cover
The internal thread of mounting hole is mutually spirally connected fixation, and the movable axis in both ends of the pin is connected to the symmetrical otic placode axis hole at rocking bar both ends
In.
Oil pipe and lower oil pipe are provided on the oil cylinder, the lower oil pipe leads to oil, and oil cylinder piston moves upwards, and drives and draws
Bar is walked upwards, and by lever principle, the valve needle cover drives needle to move downward, and closes cast gate；Oil pipe leads to oil, oil cylinder on oil cylinder
Piston moves downward, and needle is driven to move upwards, and opens cast gate.
The main Guan Zui apertures >=8mm, the left runner, right runner, nozzle flow diameter ranging from Φ 10mm-Φ
22mm；The left runner, right runner cross-sectional shape be round or ellipse.
The working pressure range of the oil cylinder is 30bar -50bar, and pressure is bigger, and pintle action is more smooth.
The operation principle of the utility model is：The heater of copper sheathing formula is mounted on main filling nozzle peripheral surface, and stent is total to two pieces dress
In the main lateral openings for filling nozzle, oil cylinder piston is mounted in oil cylinder, and for one, pull rod on oil cylinder piston, one will using pin
It is fixed on rocking bar, after installing needle in valve needle cover, is fixed by a pin on rocking bar, and axis pin connects rocking bar with stent,
Form a lever mechanism；Thermal baffle is rack-mount, completely cuts off heat radiation；Oil cylinder is external, can use high-power heating
Device while improving the efficiency of heating surface, will not damage the sealing ring of cylinder；It is main due to being machined with the left and right runner of inclined hole in main filling nozzle
8mm cannot be less than by filling aperture on nozzle, and the inner flow passage aperture of thermal jet nozzle is available for 10-Φ of Φ 22；With traditional technology cylinder
Operating pressure is compared in 7bar -10bar, and the cylinder efficient pressure of the utility model is in 30bar -50bar, and pressure is bigger, valve
Needle action is more smooth；The two is fixed using grub screw in pull rod center thread mill drilling, pin threading hole,
Ensure that pull rod, will not be inclined at rocking bar center；Valve needle cover is also to be fixed on rocking bar with corresponding method；Oil cylinder and thermal jet nozzle split
Formula is configured, simple in construction, easy to disassemble and assemble, safeguards simply, efficient.
Plastic cement in injection molding machine is divided into two strands after entering from main filling nozzle, respectively enters left runner and right runner, then again from
One is merged into the thermal jet nozzle of lower section, centre is to place needle；Oil cylinder down tube leads to oil, and oil cylinder piston moves upwards, and drives
Pull rod is walked upwards, and by lever principle, valve needle cover can drive needle to move downward, and closes cast gate；Oil cylinder upper tube leads to oil, piston to
Lower movement drives needle to move upwards, and opens cast gate.
Through the above technical solutions, the advantageous effect of technical solutions of the utility model is：Design hydraulic type single-point needle valve heat
Nozzle using cylinder body and the split type configuration of thermal jet nozzle, is separated between cylinder body and thermal jet nozzle using thermal baffle, blocks the heating of thermal jet nozzle
Heat transfer and radiation of the device to cylinder body reduce center housing temperature, so as to improve the service life of sealing ring, increase the work pressure of cylinder
Power range, manipulation is smooth, and split type configuration is more convenient for installation maintenance, reduces production cost, suitable for the plastic parts of high-temperature material,
Oil cylinder working-pressure is big, and needle work is smooth, and thermal jet nozzle is easy to assembly, and cylinder system is stablized, and improves hot flow path quality.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model embodiment, embodiment or the prior art will be retouched below
Attached drawing is briefly described needed in stating, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the hot nozzle stereogram schematic diagram of a kind of hydraulic type single-point needle valve disclosed in the utility model embodiment；
Fig. 2 is the hot nozzle sectional view schematic diagram of a kind of hydraulic type single-point needle valve disclosed in the utility model embodiment；
Fig. 3 is the hot nozzle runner diagrammatic cross-section of a kind of hydraulic type single-point needle valve disclosed in the utility model embodiment.
Corresponding component title of the number represented by with letter in figure：
1. 3. rocking bar of main filling 2. heater of nozzle, 4. pull rod
5. 6. stent of oil cylinder, 7. thermal jet nozzle, 8. axis pin
9. 10. pin of valve needle cover, 11. oil cylinder piston, 12. needle
13. 14. valve needle cover mounting hole of pull rod mounting hole, 15. thermal baffle
16. 18. times oil pipes of oil pipe on nozzle block 17.
19. left 20. right 21. nozzle runner of runner of runner
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained shall fall within the protection scope of the present invention.
According to Fig. 1, Fig. 2 and Fig. 3, the utility model provides a kind of hot nozzle of hydraulic type single-point needle valve, including it is main filling nozzle 1,
Heater 2, rocking bar 3, pull rod 4, oil cylinder 5, stent 6, thermal jet nozzle 7, axis pin 8, valve needle cover 9, pin 10, oil cylinder piston 11, needle
12nd, pull rod mounting hole 13, valve needle cover mounting hole 14, thermal baffle 15, nozzle block 16, upper oil pipe 17, lower oil pipe 18, left runner
19th, right runner 20, nozzle runner 21.
The thermal jet nozzle 7 is provided centrally with nozzle runner 21, and needle is equipped in the nozzle runner 21 of the thermal jet nozzle 7
12, the needle 12 forms single-point type needle valve hot nozzle with 7 lower end of thermal jet nozzle；The 7 upper end integral type of thermal jet nozzle is provided with nozzle
Seat 16, on the nozzle block 16 it is coaxial it is affixed be provided with main filling nozzle 1, fitted closely outside the main filling nozzle 1 and be provided with copper sheathing formula
Heater 2, main filling 1 lateral openings of nozzle, and is provided with valve chamber, be spirally connected on the main valve chamber two sides for filling nozzle 1 there are two
Stent 6,6 lower section of stent are equipped with thermal baffle 15；6 extension of stent, with main filling nozzle 1 is split type is provided with oil cylinder 5, two
A 6 bosom position of stent, wears to connect and is provided with axis pin 8, movable on the axis pin 8 to be configured with rocking bar 3；After the needle 12
End is equipped with valve needle cover 9, and the valve needle cover 9 is connect by pin 10 with the inner end swing type of rocking bar 3, the oil of the oil cylinder 5
Pull rod 4 is provided in the cylinder piston 11, the pull rod 4 is connect by pin 10 with the outboard end swing type of rocking bar 3；The main filling nozzle
1 hot flow path tilting branch is provided with left runner 19 and right runner 20, and the left runner 19 and right runner 20 are respectively from left and right
Both sides pass through valve chamber, and are docked with two sections of oblique runners in nozzle block 16, and two sections of oblique runner convergence interflow are in nozzle stream
Road 21 is projected via needle valve hot nozzle.
External screw thread is provided on the pin 10, the pull rod mounting hole 13 of 4 end of pull rod is provided with internal thread, described
Valve needle cover mounting hole 14 on valve needle cover 9 is provided with internal thread, the external screw thread of the pin 10 respectively in pull rod mounting hole 13
Screw thread, valve needle cover mounting hole 14 internal thread be mutually spirally connected fixation, the movable axis in both ends of the pin 10 is connected to 3 both ends of rocking bar
Symmetrical otic placode axis hole in.
Oil pipe 17 and lower oil pipe 18, the logical oil of the lower oil pipe 18 are provided on the oil cylinder 5, oil cylinder piston 11 is transported upwards
It is dynamic, pull rod 4 is driven to walk upwards, by lever principle, the valve needle cover 9 drives needle 12 to move downward, and closes cast gate；Oil cylinder 5
The logical oil of upper oil pipe 17, oil cylinder piston 11 move downward, and needle 12 is driven to move upwards, opens cast gate.
1 aperture of the main filling nozzle >=8mm, the left runner 19, right runner 20,21 diameter range of nozzle runner are Φ
10mm—Φ22mm；The left runner 19, right runner 20 cross-sectional shape be round or ellipse.
The working pressure range of the oil cylinder 5 is 30bar -50bar, and pressure is bigger, and pintle action is more smooth.
The specific implementation operating procedure of the utility model is：The heater 2 of copper sheathing formula is mounted on main filling 1 peripheral surface of nozzle, branch
Frame 6 is total to two pieces in the main lateral openings for filling nozzle 1, and oil cylinder piston 11 is mounted in oil cylinder 5, and 4 one, pull rod is mounted in oil cylinder piston
On 11, one is fixed in using pin 10 on rocking bar 3, after installing needle 12 in valve needle cover 9, is fixed on and shaken by pin 10
On bar 3, axis pin 8 connects rocking bar 3 and stent 6, forms a lever mechanism；Thermal baffle 15 is installed on the frame 6, isolation heat
Radiation；Oil cylinder 5 is external, can use high-power heater 2, while improving the efficiency of heating surface, will not damage the sealing ring of cylinder；By
The left and right runner of inclined hole is machined in main filling nozzle 1, aperture cannot be less than 8mm, the inner flow passage hole of thermal jet nozzle 7 on main filling nozzle 1
Diameter is available for 10-Φ of Φ 22；Compared with traditional technology cylinder operation pressure is in 7bar -10bar, the oil of the utility model
Cylinder working pressure is in 30bar -50bar, and pressure is bigger, and pintle action is more smooth；The 4 center thread mill drilling of pull rod, pin
The two is fixed using grub screw in 10 threading holes, ensures that pull rod 4, will not be inclined at 3 center of rocking bar；Valve needle cover 9 be also
It is fixed on rocking bar 3 with corresponding method；The 7 split type configuration of oil cylinder 5 and thermal jet nozzle, it is simple in construction, easy to disassemble and assemble, safeguard letter
It is single, it is efficient.
Plastic cement in injection molding machine is divided into two strands after entering from main filling nozzle 1, respectively enters left runner 19 and right runner 20, then
One is merged into thermal jet nozzle 7 from below again, centre is to place needle 12；5 down tube of oil cylinder leads to oil, and oil cylinder piston 11 is upward
Movement drives pull rod 4 to walk upwards, and by lever principle, valve needle cover 9 can drive needle 12 to move downward, and closes cast gate；Oil cylinder 5
Upper tube leads to oil, and oil cylinder piston 11 moves downward, and needle 12 is driven to move upwards, and opens cast gate.
By above-mentioned specific embodiment, the beneficial effects of the utility model are：The hot nozzle of hydraulic type single-point needle valve is designed, is used
Cylinder body and the split type configuration of thermal jet nozzle, are separated using thermal baffle between cylinder body and thermal jet nozzle, block thermal jet nozzle heater to cylinder
The heat transfer of body and radiation reduce center housing temperature, so as to improve the service life of sealing ring, increase the operating pressure model of cylinder
It encloses, manipulation is smooth, split type that installation maintenance of being more convenient for is configured, and production cost is reduced, suitable for the plastic parts of high-temperature material, oil cylinder
Pressure is big, and needle work is smooth, and thermal jet nozzle is easy to assembly, and cylinder system is stablized, and improves hot flow path quality.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with features of novelty.
Claims (5)
1. a kind of hot nozzle of hydraulic type single-point needle valve, which is characterized in that including main filling nozzle, heater, rocking bar, pull rod, oil cylinder, branch
Frame, thermal jet nozzle, axis pin, valve needle cover, pin, oil cylinder piston, needle, pull rod mounting hole, valve needle cover mounting hole, thermal baffle, spray
Nozzle seat, upper oil pipe, lower oil pipe, left runner, right runner, nozzle runner；The thermal jet nozzle is provided centrally with nozzle runner, the heat
Needle is equipped in the nozzle runner of nozzle, the needle forms single-point type needle valve hot nozzle with thermal jet nozzle lower end；The thermal jet nozzle
Upper end integral type is provided with nozzle block, on the nozzle block it is coaxial it is affixed be provided with main filling nozzle, close patch outside the main filling nozzle
Conjunction is provided with copper sheathing formula heater, the main filling nozzle lateral openings, and is provided with valve chamber, on the main valve chamber two sides for filling nozzle
It is spirally connected there are two stent, the stent lower section is equipped with thermal baffle；The stent extension fills that nozzle is split type is provided with oil with main
Cylinder, two internal stent centre positions wear to connect and are provided with axis pin, movable on the axis pin to be configured with rocking bar；After the needle
End is equipped with valve needle cover, and the valve needle cover is connected by the inner end swing type of pin and rocking bar, the oil cylinder piston of the oil cylinder
On be provided with pull rod, the pull rod passes through the outboard end swing type of pin and rocking bar and connects；The main hot flow path for filling nozzle tilts
Formula branch is provided with left runner and right runner, and the left runner and right runner pass through valve chamber from the left and right sides respectively, and with spray
Two sections of oblique runners docking in nozzle seat, two sections of oblique runner convergence interflow are projected in nozzle runner via needle valve hot nozzle.
2. a kind of hot nozzle of hydraulic type single-point needle valve according to claim 1, which is characterized in that be provided on the pin outer
Screw thread, the pull rod mounting hole of the tie rod end are provided with internal thread, in the valve needle cover mounting hole on the valve needle cover is provided with
Screw thread, the external screw thread of the pin are mutually spirally connected fixation with the internal thread of pull rod mounting hole internal thread, valve needle cover mounting hole respectively,
The movable axis in both ends of the pin is connected in the symmetrical otic placode axis hole at rocking bar both ends.
3. a kind of hot nozzle of hydraulic type single-point needle valve according to claim 1, which is characterized in that be provided on the oil cylinder
Oil pipe and lower oil pipe, the lower oil pipe lead to oil, and oil cylinder piston moves upwards, and pull rod is driven to walk upwards, described by lever principle
Valve needle cover drives needle to move downward, and closes cast gate；Oil pipe leads to oil on oil cylinder, and oil cylinder piston moves downward, and drives needle upward
Cast gate is opened in movement.
4. a kind of hot nozzle of hydraulic type single-point needle valve according to claim 1, which is characterized in that the main Guan Zui apertures >=
8mm, the left runner, right runner, nozzle flow diameter ranging from Φ 10mm-Φ 22mm；The horizontal stroke of the left runner, right runner
Cross sectional shape is round or ellipse.
A kind of 5. hot nozzle of hydraulic type single-point needle valve according to claim 1, which is characterized in that the operating pressure of the oil cylinder
Ranging from 30bar -50bar, pressure is bigger, and pintle action is more smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338979.9U CN207578961U (en) | 2017-10-18 | 2017-10-18 | A kind of hot nozzle of hydraulic type single-point needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338979.9U CN207578961U (en) | 2017-10-18 | 2017-10-18 | A kind of hot nozzle of hydraulic type single-point needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207578961U true CN207578961U (en) | 2018-07-06 |
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ID=62727938
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721338979.9U Active CN207578961U (en) | 2017-10-18 | 2017-10-18 | A kind of hot nozzle of hydraulic type single-point needle valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN207578961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756739A (en) * | 2017-10-18 | 2018-03-06 | 苏州伦纳特热流道科技有限公司 | A kind of hot nozzle of hydraulic type single-point needle valve |
| WO2020252602A1 (en) * | 2019-06-18 | 2020-12-24 | 苏州好特斯模具有限公司 | Sliding rod single-point needle valve thermal runner system |
-
2017
- 2017-10-18 CN CN201721338979.9U patent/CN207578961U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756739A (en) * | 2017-10-18 | 2018-03-06 | 苏州伦纳特热流道科技有限公司 | A kind of hot nozzle of hydraulic type single-point needle valve |
| WO2020252602A1 (en) * | 2019-06-18 | 2020-12-24 | 苏州好特斯模具有限公司 | Sliding rod single-point needle valve thermal runner system |
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Address after: 215000 floor 2, building 2, No. 1258, Jinfeng South Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou lunnate Industrial Technology Co.,Ltd. Address before: Room 1605, Building 13, Yongxin Dacheng County, No. 980, Jinfeng South Road, Wuzhong District, Suzhou City, Suzhou City, Jiangsu Province 215000 Patentee before: SUZHOU LUNNATE HOT RUNNER TECHNOLOGY CO.,LTD. |