CN207669696U - Single-point hot runner needle valve - Google Patents
Single-point hot runner needle valve Download PDFInfo
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- CN207669696U CN207669696U CN201721273336.0U CN201721273336U CN207669696U CN 207669696 U CN207669696 U CN 207669696U CN 201721273336 U CN201721273336 U CN 201721273336U CN 207669696 U CN207669696 U CN 207669696U
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- notch
- valve
- main body
- point hot
- wire casing
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- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a single-point hot runner needle valve, which comprises an air cylinder device, a heating device and a valve body device, wherein the valve body device comprises a valve needle, a sprue main body and a sprue body arranged below the sprue main body, and the air cylinder device is used for driving the valve needle to move up and down to control the outflow of liquid in the valve body device; the cylinder device comprises a cylinder body, the sprue main body is arranged inside the cylinder body, the heating device comprises a second heating assembly, a second wire groove is formed in the peripheral wall of the sprue main body, the second heating assembly is installed on the second wire groove, and the second wire groove is an arc-shaped groove. The utility model provides a single-point hot runner needle valve, it can improve the purt and chew the main part and chew the outside heating element's of main part area of contact, improves the heat utilization efficiency.
Description
Technical field
The utility model is related to Hot runner Technology more particularly to a kind of single-point hot-runner pin valves.
Background technology
Currently, in the epoch of rapid economic development, requirement of the Injection Industry to plastic cement products is higher and higher, needle-valve hot flow path
System is applied in Injection Industry, and various advantages increasingly highlight, thus needle-valve hot runner system is in hot runner mould
Application in industry is more and more universal, while also promoting the gradually development of Hot runner Technology.In plastic cement products, many products
Mold use single-point hot-runner pin valve, in the product between into glue.
But existing single-point hot-runner pin valve has the following defects：
The heating wire casing set on purt nozzle main body periphery wall forms folder as square groove between the side wall and bottom wall of the square groove
Angle can not be well bonded with circular line with heating function, and line with heating function and the contact area of purt nozzle main body are not ideal enough, line with heating function
Heat utilization efficiency is low.
Utility model content
It for overcome the deficiencies in the prior art, can the purpose of this utility model is to provide single-point hot-runner pin valve
The contact area of purt nozzle main body and the heating component of purt nozzle body exterior is improved, heat utilization efficiency is improved.
The purpose of this utility model adopts the following technical scheme that realization：
A kind of single-point hot-runner pin valve, including air cylinder device, heating device and valve means, the valve means include valve
Needle, purt nozzle main body and the nozzle body below the purt nozzle main body, the air cylinder device is for driving the needle to move up and down
And control the outflow of liquid in the valve means；The air cylinder device includes cylinder body, and the purt nozzle main body is set to the cylinder body
Inside, the heating device include the second heating component, and the periphery wall of the purt nozzle main body is equipped with the second wire casing, and described second
Heating component is installed on second wire casing, and second wire casing is arc groove.
Further, second heating component is line with heating function, a diameter of 1.8mm of the line with heating function.
Further, the opening of second wire casing is equipped with the first notch and the second notch, first notch and institute
It states spacing distance of second notch in side of first notch far from second wire casing and is more than and lean in first notch
The spacing distance of the side of nearly second wire casing.
Further, the interval distance of first notch and second notch between the second wire casing width direction
It is incremented by from outside to inside from the second wire casing depth direction from for D, the D.
Further, the angle of first notch and second notch is 5 ° -35 °.
Further, the angle of first notch and second notch is 30 °.
Further, second wire casing is arc-shaped slot.
Further, the second heating component uniform winding is on the periphery wall of the purt nozzle main body.
Further, the cylinder body include cylinder body ontology and with the integrally formed positioning region of cylinder body ontology, the nozzle
Body is fixed on by the positioning region on the cylinder body ontology.
Further, the valve means further include be set to the purt nozzle main body above purt nozzle head, the purt nozzle head with
The purt nozzle main body screw connection.
Compared with prior art, the beneficial effects of the utility model are：
The purt nozzle main body of the single-point hot-runner pin valve of above-mentioned technical proposal is equipped with for installing the second heating component
Two wire casings, the second wire casing are arc groove, and compared with square groove, above structure is not only processed simply, but also can increase second and add
The contact area of hot component and purt nozzle main body, improves the heat utilization efficiency of the second heating component.
Description of the drawings
Fig. 1 is the schematic diagram of single-point needle provided by the utility model；
Fig. 2 is close-up schematic view of the single-point needle at A in Fig. 1；
Fig. 3 is the structural schematic diagram of the purt nozzle main body of single-point needle in Fig. 1；
Fig. 4 is the sectional view of purt nozzle main body in Fig. 3.
In figure：10, air cylinder device；11, cylinder body；111, cylinder body ontology；112, positioning region；12, cylinder cap；121, cylinder cap sheet
Body；122, fortune water jacket portion；13, cylinder core；20, valve means；21, needle；22, purt nozzle main body；221, the first branch flow passage；222,
Two wire casings；223, the first notch；224, the second notch；23, nozzle body；231, upper nozzle body；2311, the second branch flow passage；232, lower nozzle
Body；2321, sprue；24, purt nozzle head；30, channel；40, heating device；41, the first heating component；42, the second heating component；
43, copper sheathing.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Please refer to Fig. 1-4, the single-point hot-runner pin valve that the utility model embodiment provides, including air cylinder device 10 and valve
Body device 20, valve means 20 include needle 21, and air cylinder device 10 moves up and down and application valve body device for valve needle 21
The outflow of melt in 20；Air cylinder device 10 includes cylinder body 11 and the cylinder cap 12 being connect with cylinder body 11, and cylinder cap 12 includes cylinder cap ontology
121 and with 121 integrally formed fortune water jacket portion 122 of cylinder cap ontology, 11 inner wall of cylinder body, which is close to transport water jacket portion 122, forms channel 30.
It is to be appreciated that sealing ring is equipped between the fortune water jacket portion 122 of cylinder cap 12 and cylinder body 11, to realize fortune water jacket portion
122 with the sealed connection of cylinder body 11, ensure the air-tightness of air cylinder device 10.Cylinder body 11 is solid by connectors such as screws with cylinder cap 12
Fixed connection.Air cylinder device 10 further includes cylinder core 13, and purt nozzle main body is nested in cylinder core 13, and cylinder core 13 is nested in cylinder body 11.
The cylinder cap 12 of the single-point hot-runner pin valve of above-described embodiment, air cylinder device 10 includes cylinder cap ontology 121 and and cylinder
121 integrally formed fortune water jacket portion 122 of lid ontology, 11 inner wall of cylinder body, which is close to transport water jacket portion 122, forms channel 30, because without with
The connectors such as screw assemble cylinder cap ontology 121 and fortune water jacket portion 122, reduce the quantity of single-point hot-runner pin valve processing part,
It eliminates cylinder cap ontology 121 and transports the assembling steps in water jacket portion 122, assembly is simple, reduces manufacturing cost；Meanwhile this knot
Structure reduces tolerance stack, precision higher but also the assembling parts quantity of the single-point hot-runner pin valve tails off.In addition, logical at this
Water pipe is set in road 30, the cooling water of water pipe internal circulation flow can play good cooling effect to air cylinder device 10,
Effectively extend the service life of sealing ring on the single-point hot-runner pin valve.
As preferred embodiment, valve means 20 further include purt nozzle main body 22, the nozzle set on 22 lower section of purt nozzle main body
Body 23 and the purt nozzle head 24 above purt nozzle main body 22, purt nozzle main body 22 are set to inside cylinder body 11, and cylinder body 11 includes cylinder body sheet
Body 111 and with 111 integrally formed positioning region 112 of cylinder body ontology, nozzle body 23 is fixed on cylinder body ontology 111 by positioning region 112
On.The purt nozzle main body 22 of above structure is set to inside cylinder body 11, and entirety is formed with air cylinder device 10, by positioning region 112 by nozzle
Body 23 is fixed on cylinder body ontology 111, is neither influenced the function of valve means 20, will not be interfered with air cylinder device 10,
Compared with traditional single-point hot-runner pin valve, structure is compacter and substantially reduces mold and opens frame.In addition above structure without
Cylinder body ontology 111 and positioning region 112 need to be assembled with connectors such as screws, further reduce single-point hot-runner pin valve processing part
Quantity, eliminate the assembling steps of cylinder body ontology 111 and positioning region 112, assembly is simple, effectively reduces manufacturing cost；Together
When, this structure reduces tolerance stack, precision higher but also the assembling parts quantity of the single-point hot-runner pin valve tails off.
In the present embodiment, purt nozzle main body 22 is fixedly connected by connectors such as screws with nozzle body 23.Purt nozzle head 24 and 22 spiral shell of purt nozzle main body
Line connects, and so that purt nozzle head 24 is closely connect with purt nozzle main body 22 by the coupling mechanism force of thread, avoids in purt nozzle head 24 and purt nozzle master
Leak adhesive occurs for body 22；Simultaneously so that purt nozzle head 24 glue-feeder from the second heating component 42 in purt nozzle main body 22 closer to purt nozzle
First 24 to sink to purt nozzle main body 22 deeper so that heat-conducting area bigger prevents the melt of the glue-feeder of purt nozzle head 24 from cooling down.Channel 30
Quantity be one group, along fortune water jacket portion, 122 periphery winding two is enclosed in the channel 30, has both reduced the entirety of the single-point hot-runner pin valve
Volume reduces water pipe quantity, reduces mold and opens frame, in turn avoids damage of the high temperature to sealing ring.
As preferred embodiment, purt nozzle main body 22 includes equipped at least two the first branch flow passages 221, nozzle body 23
The lower nozzle body 232 that upper nozzle body 231 is connect with upper nozzle body 231, upper nozzle body 231 are connected to equipped at least two with the first branch flow passage 221
The second branch flow passage 2311；The periphery wall of upper nozzle body 231 is equipped with the first wire casing (not indicating), and single-point hot-runner pin valve further includes
Heating device 40, heating device 40 include being installed on the first heating component 41 on the first wire casing, thus the second of upper nozzle body 231
Melt in branch flow passage 2311 is not easy to cool down, and keeps valve means 20 heated evenly；Also avoid the high plastics of fusing point simultaneously
The problem of influencing fluidity of molten due to being cooled down on the second branch flow passage 2311, injection moulding process is caused to be difficult to be smoothed out, from
And the single-point hot-runner pin valve is made to disclosure satisfy that the processing of high-melting plastics.In the present embodiment, the first branch flow passage 221 and
The quantity of two branch flow passages 2311 is two, and the second branch flow passage 2311 is inclined flow passage.Lower nozzle body 232 is equipped with and the second branch flow passage
The sprue 2321 of 2311 connections.The outer cover of lower nozzle body 232 is equipped with copper sheathing 43, and the periphery wall of copper sheathing 43 is equipped with heater wire,
It is heated for the melt in the sprue 2321 to lower nozzle body 232.
As preferred embodiment, the periphery wall of purt nozzle main body 22 is equipped with the second wire casing 222, and heating device 40 also wraps
Include the second heating component 42 being installed on the second wire casing 222.Second heating component 42 is line with heating function, line with heating function embedment second
Purt nozzle main body 22 is heated in wire casing 222, ensures temperature when melt flows through purt nozzle main body 22.Line with heating function it is a diameter of
1.8mm, length 2000mm, this size line with heating function bending amplitude it is big, line with heating function increase, can uniform winding in purt nozzle master
On the periphery wall of body 22, thus line with heating function and the contact area of purt nozzle main body 22 increase, and improve the heat utilization efficiency of line with heating function, make
Purt nozzle main body 22 is obtained to be uniformly heated.
As preferred embodiment, the second wire casing 222 is arc groove, and the cross section of the second heating component 42 is circle,
Compared with square groove, above structure is not only processed simply, but also can increase connecing for the second heating component 42 and purt nozzle main body 22
Contacting surface is accumulated, and improves the heat utilization efficiency of the second heating component 42 so that purt nozzle main body 22 is uniformly heated, and avoids hot-spot
Phenomenon leads to problems such as to turn to be yellow to temperature than more sensitive material.In the present embodiment, the second wire casing 222 is arc-shaped
Slot.The opening of second wire casing 222 is equipped with the first notch 223 and the second notch 224, and the first notch 223 and the second notch 224 exist
The spacing distance of side of first notch 223 far from the second wire casing 222 is more than in the first notch 223 close to the second wire casing 222
The spacing distance of side, so that the second heating component 42 is not easy after being embedded to the second wire casing 222.In the present embodiment,
The spacing distance of a kerf 223 and the second notch 224 between 222 width direction of the second wire casing is D, and D is deep from the second wire casing 222
Direction is spent from outside to inside to be incremented by.The angle of first notch 223 and the second notch 224 is 5 ° -35 °, can either avoid the second heating
Component 42 is damaged in the process for being pressed into the second wire casing 222 and the risk leaked electricity occurs, while can prevent the second heating again
Component 42 is not easy after being embedded to the second wire casing 222.In the present embodiment, the angle of the first notch 223 and the second notch 224 is
30°。
The above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model range claimed.
Claims (10)
1. a kind of single-point hot-runner pin valve, which is characterized in that including air cylinder device, heating device and valve means, the valve body
Device includes needle, purt nozzle main body and the nozzle body below the purt nozzle main body, and the air cylinder device is for driving the valve
Needle moves up and down and controls the outflow of liquid in the valve means；The air cylinder device includes cylinder body, and the purt nozzle main body is set
In the cylinder interior, the heating device includes the second heating component, and the periphery wall of the purt nozzle main body is equipped with the second line
Slot, second heating component are installed on second wire casing, and second wire casing is arc groove.
2. single-point hot-runner pin valve as described in claim 1, which is characterized in that second heating component is line with heating function, institute
State a diameter of 1.8mm of line with heating function.
3. single-point hot-runner pin valve as described in claim 1, which is characterized in that the opening of second wire casing is equipped with first
Notch and the second notch, first notch is with second notch in side of first notch far from second wire casing
Spacing distance be more than in first notch close to the spacing distance of the side of second wire casing.
4. single-point hot-runner pin valve as claimed in claim 3, which is characterized in that first notch exists with second notch
Spacing distance between the second wire casing width direction is D, and the D is passed from outside to inside from the second wire casing depth direction
Increase.
5. single-point hot-runner pin valve as claimed in claim 3, which is characterized in that first notch and second notch
Angle is 5 ° -35 °.
6. single-point hot-runner pin valve as claimed in claim 5, which is characterized in that first notch and second notch
Angle is 30 °.
7. single-point hot-runner pin valve as described in claim 1, which is characterized in that second wire casing is arc-shaped slot.
8. single-point hot-runner pin valve as described in claim 1, which is characterized in that the second heating component uniform winding is in institute
On the periphery wall for stating purt nozzle main body.
9. such as claim 1-8 any one of them single-point hot-runner pin valves, which is characterized in that the cylinder body includes cylinder body ontology
With with the integrally formed positioning region of cylinder body ontology, the nozzle body is fixed on by the positioning region on the cylinder body ontology.
10. single-point hot-runner pin valve as claimed in claim 9, which is characterized in that the valve means further include set on described
Purt nozzle head above purt nozzle main body, the purt nozzle head are connect with the purt nozzle main body screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721273336.0U CN207669696U (en) | 2017-09-28 | 2017-09-28 | Single-point hot runner needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721273336.0U CN207669696U (en) | 2017-09-28 | 2017-09-28 | Single-point hot runner needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207669696U true CN207669696U (en) | 2018-07-31 |
Family
ID=62953210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721273336.0U Active CN207669696U (en) | 2017-09-28 | 2017-09-28 | Single-point hot runner needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207669696U (en) |
-
2017
- 2017-09-28 CN CN201721273336.0U patent/CN207669696U/en active Active
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