CN207509629U - Single-point needle valve - Google Patents
Single-point needle valve Download PDFInfo
- Publication number
- CN207509629U CN207509629U CN201721263559.9U CN201721263559U CN207509629U CN 207509629 U CN207509629 U CN 207509629U CN 201721263559 U CN201721263559 U CN 201721263559U CN 207509629 U CN207509629 U CN 207509629U
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- China
- Prior art keywords
- cylinder
- needle valve
- point needle
- wire casing
- main body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims description 39
- 206010037660 Pyrexia Diseases 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000155 melt Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 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
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 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
- 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
- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000048 melt cooling Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a single-point needle valve, which comprises a cylinder device and a valve body device, wherein the valve body device comprises a valve needle, and the cylinder device is used for driving the valve needle to move up and down to control the outflow of a melt in the valve body device; the cylinder device comprises a cylinder body and a cylinder cover connected with the cylinder body, the cylinder cover comprises a cylinder cover body and a water conveying sleeve part integrally formed with the cylinder cover body, and a channel is formed by tightly attaching the inner wall of the cylinder body to the water conveying sleeve part. The utility model provides a single-point needle valve, simple structure has reduced the quantity of single-point needle valve processing part, and the assembly is simple, has reduced manufacturing cost.
Description
Technical field
The utility model is related to Hot runner Technology more particularly to a kind of single-point needle valves.
Background technology
At present, 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 promotes the gradually development of Hot runner Technology.In plastic cement products, many products
Mold using single-point needle valve, in the product between into glue.
But there are following defects for existing single-point needle valve：
Cylinder cap and the split molding of fortune water jacket, in single-point needle valve assembling process, need to realize cylinder using connectors such as screws
The connection of lid and fortune water jacket, so not only increases the installation step of single-point needle valve, reduces efficiency of assembling；And it needs to distinguish
Cylinder cap and fortune two parts of water jacket are processed, is increased manufacturing cost.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of single-point needle valve, which simplify
The structure of existing single-point needle valve reduces the quantity of single-point needle valve processing part, and assembling is simple, reduces manufacture cost.
The purpose of this utility model adopts the following technical scheme that realization：
A kind of single-point needle valve, including air cylinder device and valve means, the valve means include needle, the air cylinder device
The outflow of melt in the valve means is controlled for the needle to be driven to move up and down；The air cylinder device include cylinder body and
The cylinder cap being connect with the cylinder body, the cylinder cap include cylinder cap ontology and with the integrally formed fortune water jacket portion of the cylinder cap ontology,
The inboard wall of cylinder block is close to the fortune water jacket portion and forms channel.
Further, the valve means further include purt nozzle main body and the nozzle body below the purt nozzle main body, described
Purt nozzle main body be set on the cylinder interior, the cylinder body include cylinder body ontology and with the integrally formed positioning of cylinder body ontology
Portion, the nozzle body are fixed on by the positioning region on the cylinder body ontology.
Further, the valve means further include the purt nozzle head above the purt nozzle main body, the purt nozzle head with
The purt nozzle main body screw connection.
Further, the quantity of the channel is one group.
Further, the purt nozzle main body is equipped at least two the first branch flow passages, and the nozzle body includes upper nozzle body, described
Upper nozzle body is equipped at least two the second branch flow passages connected with first branch flow passage；The periphery wall of the upper nozzle body is equipped with the
One wire casing, the single-point needle valve further include heating unit, and the heating unit includes be installed on first wire casing first
Heating component.
Further, the heating unit further includes the second heating component, and the periphery wall of the purt nozzle main body is equipped with the
Two wire casings, second heating component are installed on second wire casing.
Further, second heating component be line with heating function, a diameter of 1.8mm of the line with heating function.
Further, second wire casing is arc groove.
Further, the opening of second wire casing is equipped with the first notch and the second notch, first notch and institute
Spacing distance of second notch between the second wire casing width direction is stated as D, the D is from the second wire casing depth direction
It is incremented by from outside to inside.
Further, the angle of first notch and second notch is 5 ° -35 °.
Compared with prior art, the beneficial effects of the utility model are：
The single-point needle valve of above-mentioned technical proposal, the cylinder cap of air cylinder device include cylinder cap ontology and with cylinder cap ontology one into
The fortune water jacket portion of type, inboard wall of cylinder block is close to transport water jacket portion formation channel, because without assembling cylinder cap ontology with connectors such as screws
With fortune water jacket portion, reduce the quantity of single-point needle valve processing part, eliminate cylinder cap ontology and transport the number of assembling steps in water jacket portion, dress
With simple, manufacture cost is reduced；Meanwhile this structure, but also the assembling parts quantity of the single-point needle valve tails off, reduction is public
Difference superposition, precision higher.In addition, setting water pipe in the channel, the cooling water of water pipe internal circulation flow can be to air cylinder device
Good cooling effect can be played, effectively extends the service life of sealing ring on the single-point needle valve.
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 structure 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：10th, air cylinder device；11st, cylinder body；111st, cylinder body ontology；112nd, positioning region；12nd, cylinder cap；121st, cylinder cap sheet
Body；122nd, fortune water jacket portion；13rd, cylinder core；20th, valve means；21st, needle；22nd, purt nozzle main body；221st, the first branch flow passage；222nd,
Two wire casings；223rd, the first notch；224th, the second notch；23rd, nozzle body；231st, upper nozzle body；2311st, the second branch flow passage；232nd, lower nozzle
Body；2321st, sprue；24th, purt nozzle head；30th, channel；40th, heating unit；41st, the first heating component；42nd, the second heating component；
43rd, copper sheathing.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, 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 needle valve that the utility model embodiment provides, including air cylinder device 10 and valve means
20, valve means 20 include needle 21, and air cylinder device 10 is for valve needle 21 to move up and down and is melted in application valve body device 20
The outflow of body；Air cylinder device 10 includes cylinder body 11 and the cylinder cap 12 that connect with cylinder body 11, cylinder cap 12 including cylinder cap ontology 121 and with
The integrally formed fortune water jacket portion 122 of cylinder cap ontology 121,11 inner wall of cylinder body are close to transport 122 formation channel 30 of water jacket portion.
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 consolidated with cylinder cap 12 by connectors such as screws
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 single-point needle valve of above-described embodiment, the cylinder cap 12 of air cylinder device 10 include cylinder cap ontology 121 and with cylinder cap ontology
121 integrally formed fortune water jacket portions 122,11 inner wall of cylinder body, which is close to transport water jacket portion 122, forms channel 30, because without with screw etc.
Connector assembling cylinder cap ontology 121 and fortune water jacket portion 122, reduce the quantity of single-point needle valve processing part, eliminate cylinder cap sheet
Body 121 and the number of assembling steps in fortune water jacket portion 122, assembling is simple, reduces manufacture cost；Meanwhile this structure is but also the list
The assembling parts quantity of point needle-valve tails off, and reduces tolerance stack, precision higher.In addition, setting water pipe, water pipe in the channel 30
The cooling water of internal circulation flow can play good cooling effect to air cylinder device 10, effectively extend the single-point needle valve
The service life of upper sealing ring.
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 on 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 on 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 needle valve, structure is compacter and substantially reduces mold and opens frame.In addition above structure need not use spiral shell
The connectors such as silk assembling cylinder body ontology 111 and positioning region 112, further reduce the quantity of single-point needle valve processing part, save
The number of assembling steps of cylinder body ontology 111 and positioning region 112, assembling is simple, effectively reduces manufacture cost；Meanwhile this structure
But also the assembling parts quantity of the single-point needle valve tails off, tolerance stack, precision higher are reduced.In the present embodiment, purt nozzle master
Body 22 is fixedly connected by connectors such as screws with nozzle body 23.Purt nozzle head 24 is threadedly coupled with purt nozzle main body 22, passes through thread
Coupling mechanism force makes purt nozzle head 24 closely be connect with purt nozzle main body 22, avoids that leak adhesive occurs in purt nozzle head 24 and purt nozzle main 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 head 24 sinks to purt nozzle main body 22
It is deeper so that heat-conducting area bigger prevents the melt cooling of the glue-feeder of purt nozzle head 24.The quantity of channel 30 is one group, this is logical
Road 30 is enclosed along the 122 periphery winding two of fortune water jacket portion, has both been reduced the overall volume of the single-point needle valve, has been reduced water pipe quantity, subtract
Small mold opens frame, in turn avoids damage of the high temperature to sealing ring.
As preferred embodiment, purt nozzle main body 22 is equipped at least two the first branch flow passages 221, and nozzle body 23 includes upper
The lower nozzle body 232 that nozzle body 231 is connect with upper nozzle body 231, what upper nozzle body 231 was connected equipped at least two with the first branch flow passage 221
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 needle valve further includes heating unit
40, heating unit 40 includes the first heating component 41 being installed on the first wire casing, thus the second branch flow passage of upper nozzle body 231
Melt in 2311 is not easy to cool down, and makes valve means 20 heated evenly；Simultaneously also avoid the high plastics of fusing point due to
The problem of cooling down on second branch flow passage 2311 and influence fluidity of molten, injection moulding process is caused to be difficult to be smoothed out, so that
The single-point needle valve disclosure satisfy that the processing of high-melting plastics.In the present embodiment, the first branch flow passage 221 and the second branch flow passage 2311
Quantity be two, the second branch flow passage 2311 be inclined flow passage.Lower nozzle body 232 is equipped with the mainstream connected with the second branch flow passage 2311
Road 2321.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, for lower nozzle body 232
Sprue 2321 in melt heated.
As preferred embodiment, the periphery wall of purt nozzle main body 22 is equipped with the second wire casing 222, and heating unit 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, which is embedded to 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,
Spacing distance of 223 and second notch 224 of a kerf 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 the preferred embodiment of the utility model, it is impossible to 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 needle valve, which is characterized in that including air cylinder device and valve means, the valve means include needle, institute
Air cylinder device is stated for the needle to be driven to move up and down and controls the outflow of melt in the valve means；The air cylinder device
The cylinder cap being connect including cylinder body and with the cylinder body, the cylinder cap include cylinder cap ontology and integrally formed with the cylinder cap ontology
Water jacket portion is transported, the inboard wall of cylinder block is close to the fortune water jacket portion and forms channel.
2. single-point needle valve as described in claim 1, which is characterized in that the valve means further include purt nozzle main body and set on institute
State the nozzle body below purt nozzle main body, the purt nozzle main body is set on the cylinder interior, the cylinder body include cylinder body ontology and with institute
The integrally formed positioning region of cylinder body ontology is stated, the nozzle body is fixed on by the positioning region on the cylinder body ontology.
3. single-point needle valve as claimed in claim 2, which is characterized in that the valve means are further included set on the purt nozzle main body
The purt nozzle head of top, the purt nozzle head are connect with the purt nozzle main body screw.
4. single-point needle valve as described in claim 1, which is characterized in that the quantity of the channel is one group.
5. single-point needle valve as claimed in claim 2, which is characterized in that the purt nozzle main body is equipped at least two the first tributaries
Road, the nozzle body include upper nozzle body, and the upper nozzle body is equipped at least two the second branch flow passages connected with first branch flow passage；
The periphery wall of the upper nozzle body is equipped with the first wire casing, and the single-point needle valve further includes heating unit, and the heating unit includes
The first heating component being installed on first wire casing.
6. single-point needle valve as claimed in claim 5, which is characterized in that the heating unit further includes the second heating component, institute
The periphery wall for stating purt nozzle main body is equipped with the second wire casing, and second heating component is installed on second wire casing.
7. single-point needle valve as claimed in claim 6, which is characterized in that second heating component be line with heating function, the fever
A diameter of 1.8mm of line.
8. single-point needle valve as claimed in claim 6, which is characterized in that second wire casing is arc groove.
9. single-point needle valve as claimed in claim 6, which is characterized in that the opening of second wire casing be equipped with the first notch and
Second notch, the spacing distance of first notch and second notch between the second wire casing width direction be D, institute
D is stated from the second wire casing depth direction to be from outside to inside incremented by.
10. single-point needle valve as claimed in claim 9, which is characterized in that the angle of first notch and second notch
It is 5 ° -35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721263559.9U CN207509629U (en) | 2017-09-28 | 2017-09-28 | Single-point needle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721263559.9U CN207509629U (en) | 2017-09-28 | 2017-09-28 | Single-point needle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207509629U true CN207509629U (en) | 2018-06-19 |
Family
ID=62534029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721263559.9U Active CN207509629U (en) | 2017-09-28 | 2017-09-28 | Single-point needle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207509629U (en) |
-
2017
- 2017-09-28 CN CN201721263559.9U patent/CN207509629U/en active Active
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| GR01 | Patent grant |