CN109693345A - A kind of cylinder cooling structure of needle valve type hot runner - Google Patents
A kind of cylinder cooling structure of needle valve type hot runner Download PDFInfo
- Publication number
- CN109693345A CN109693345A CN201710991979.7A CN201710991979A CN109693345A CN 109693345 A CN109693345 A CN 109693345A CN 201710991979 A CN201710991979 A CN 201710991979A CN 109693345 A CN109693345 A CN 109693345A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- cylinder
- hot runner
- needle valve
- valve type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000007423 decrease Effects 0.000 claims description 2
- 102000010637 Aquaporins Human genes 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
- B29C2045/2753—Heating means and cooling means, e.g. heating the runner nozzle and cooling the nozzle tip
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of cylinder cooling structures of needle valve type hot runner, including flow distribution plate and cylinder body, piston is provided in the cylinder body, the piston base is provided with needle, it is characterized by: being provided with support plate on the flow distribution plate, the cylinder body is located in support plate, the support plate is provided with the relief hole passed through for needle, the limit guide sleeve passed through for piston is provided in the cylinder body, the outer circle wall that the limit guide sleeve is bonded with cylinder body is coaxially arranged with cooling trough, the cylinder body outer circle wall offers the water inlet interface communicated with cooling trough and return water interface, its key points of the technical solution are that passing through setting support plate, flow distribution plate is reduced to transmit the heat of cylinder body, by the way that cooling trough is arranged, cylinder body is reduced to transmit the heat of piston, the sealing element on piston is protected not to be damaged.
Description
Technical field
The present invention relates to needle valve type hot runner technical fields, more specifically, it relates to a kind of gas of needle valve type hot runner
Cylinder cooling structure.
Background technique
Hot flow path is to guarantee that the plastics of runner and cast gate are kept molten by by the method for heating, hot runner system one
As be made of several parts such as hot nozzle, flow distribution plate, temperature control box and attachment, hot nozzle generally comprises two kinds: open hot nozzle and
Needle valve type hot nozzle since hot nozzle form directly determines that hot runner system selects the manufacture with mold, thus often accordingly will
Hot runner system is divided into open hot runner system and needle valve type hot runner system.Air-cylinder type hot flow path is needle valve type hot runner
The characteristics of one kind, air-cylinder type is because of its structure, determines that mould and die accuracy wants high.
But in the prior art, since integrated cylinder is locked out on flow distribution plate, system works together flow distribution plate temperature
Up to 300 DEG C or so of degree, place at high temperature, is easy to cause sealing element aging for a long time for the piston of cylinder, and gas leakage etc. is caused to show
As.
Summary of the invention
It is cooling in view of the deficiencies of the prior art, the present invention intends to provide a kind of cylinder of needle valve type hot runner
Structure, tool can cool to the piston of cylinder, reduce the advantage of heat transmitting between cylinder and flow distribution plate.
To achieve the above object, the present invention provides the following technical scheme that
A kind of cylinder cooling structure of needle valve type hot runner, including flow distribution plate and cylinder body are provided with piston in the cylinder body, described
Piston base is provided with needle, and support plate is provided on the flow distribution plate, and the cylinder body is located in support plate, and the support plate is set
It is equipped with the relief hole passed through for needle, the limit guide sleeve passed through for piston, the limit guide sleeve and cylinder are provided in the cylinder body
It shows consideration for the outer circle wall closed and is coaxially arranged with cooling trough, the cylinder body outer circle wall offers the water inlet communicated with cooling trough
Interface and return water interface.
Preferably, the limit guide sleeve outer circle wall, which is located above and below cooling trough, is respectively set there are two first
Annular groove, the first annular slot are embedded with the first sealing ring.
Preferably, the cylinder body bottom wall is coaxially arranged with the second annular groove, and second annular groove is embedded with the second sealing
Circle, the limit guide sleeve bottom wall extends outwardly to be provided with to offset with cylinder body bottom wall, and compresses the pressure ring of the second sealing ring.
Preferably, the piston upper end is provided with the limited block being bonded with inboard wall of cylinder block, the limited block and limit guide sleeve
It abuts, the outer rim of the limited block upper end is coaxially arranged with the first air inlet duct, the outer rim coaxial arrangement of the positioning guide sleeve upper end
There is the second air inlet duct, the outer wall of cylinder block is provided through the air inlet communicated with the first air inlet duct, the second air inlet duct.
Preferably, the outer circle wall that the limited block is bonded with cylinder body is coaxially arranged with third annular groove, the third ring
Shape slot is embedded with third sealing ring.
Preferably, the inner sidewall that the limit guide sleeve is bonded with piston is coaxially arranged with fourth annular slot, the Fourth Ring
Shape slot is embedded with the 4th sealing ring.
Preferably, the support plate bottom wall protrusion is provided with the cushion block to offset with flow distribution plate.
Preferably, the cushion block is tapered, and the sectional area of the cushion block successively decreases to flow distribution plate direction.
Preferably, shown support plate runs through support plate along the vertical direction and cushion block is provided with counterbore, setting in the counterbore
There is bolt, the flow distribution plate is provided with screw hole.
Compared with prior art, the invention has the following advantages:
By installing a limit guide sleeve in cylinder body, it is passed through recirculated water in water inlet interface and return water interface, makes recirculated water
By the cooling trough on limit guide sleeve, and cooling water channel is formed between inboard wall of cylinder block, to reduce the heat on cylinder body less again
Amount is transferred on piston；By the way that multiple sealing elements are arranged, it is able to maintain the leakproofness of mechanism, prevents leak gas leakage；By setting
Support plate is set, can be reduced in the heat transfer to cylinder body on flow distribution plate, by the way that the cushion block of taper is arranged, for reducing support plate
With the contact area of flow distribution plate, it is further reduced hot transmitting.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is the enlarged drawing of part A in Fig. 1.
In figure: 1, flow distribution plate；2, cylinder body；21, piston；211, needle；3, support plate；31, relief hole；22, guide sleeve is limited；
221, cooling trough；23, water inlet interface；24, return water interface；222, first annular slot；2221, the first sealing ring；25, the second ring
Shape slot；251, the second sealing ring；223, pressure ring；212, limited block；26, air inlet；2121, the first air inlet duct；224, second into
Air drain；2122, third annular groove；2123, third sealing ring；225, fourth annular slot；2251, the 4th sealing ring；32, cushion block；
33, counterbore；331, bolt；11, screw hole.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
The present embodiment is only explanation of the invention, is not limitation of the present invention, and those skilled in the art exist
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in the present invention
Scope of the claims in all by the protection of Patent Law.
A kind of cylinder cooling structure of needle valve type hot runner, referring to Fig.1 with 2 comprising flow distribution plate 1 and cylinder body 2, cylinder body 2
It is inside provided with piston 21,21 bottom of piston is provided with needle 211, and support plate 3 is provided on flow distribution plate 1, and cylinder body 2 is located at support plate
On 3, support plate 3 is provided with the relief hole 31 passed through for needle 211, and support plate 3 is used to reduce the heat between cylinder body 2 and distinguished and admirable plate
Transmission effect；3 bottom wall protrusion of support plate is provided with the cushion block 32 to offset with flow distribution plate 1, and cushion block 32 is tapered, the section of cushion block 32
Product is successively decreased to 1 direction of flow distribution plate, and support plate 3 is provided with counterbore 33 through support plate 3 and cushion block 32 along the vertical direction, in counterbore 33
It is provided with bolt 331, flow distribution plate 1 is provided with screw hole 11, support plate 3 is fixed on flow distribution plate 1 by bolt 331, by setting
Cushion block 32 is set, the contact area between support plate 3 and flow distribution plate 1 can be reduced, is further reduced hot transmitting.
The limit guide sleeve 22 passed through for piston 21 is provided in cylinder body 2, limit guide sleeve 22 is bonded with cylinder body 2, on piston 21
End is provided with the limited block 212 being bonded with 2 inner wall of cylinder body, and limited block 212 is abutted with limit guide sleeve 22, for positioning piston 21,
The outer rim of 212 upper end of limited block is coaxially arranged with the first air inlet duct 2121, and the outer rim of positioning guide sleeve upper end is coaxially arranged with second
Air inlet duct 224,2 outer wall of cylinder body are provided through the air inlet 26 communicated with the first air inlet duct 2121, the second air inlet duct 224, use
It moves up and down in driving piston 21；The outer circle wall that limited block 212 is bonded with cylinder body 2 is coaxially arranged with third annular groove 2122,
Third annular groove 2122 is embedded with third sealing ring 2123, to prevent gas leakage between 2 inner wall of limited block 212 and cylinder body；Limit is led
The inner sidewall that set 22 is bonded with piston 21 is coaxially arranged with fourth annular slot 225, and fourth annular slot 225 is embedded with the 4th sealing ring
2251, to prevent that gas leakage occurs between piston 21 and limit guide sleeve 22.
The outer circle wall that limit guide sleeve 22 is bonded with cylinder body 2 is coaxially arranged with cooling trough 221, and 2 outer circle wall of cylinder body is opened
Equipped with water inlet interface 23 and return water interface 24, water inlet interface 23, return water interface 24 are communicated with cooling trough 221, and form circulation
Cooling water channel, water inlet interface 23 and return water interface 24 are separately connected water inlet pipe and return pipe；Limit 22 outer circle wall of guide sleeve is located at
It is respectively set above and below cooling trough 221 there are two first annular slot 222, two first annular slots 222 are embedded with the
One sealing ring 2221；The bottom wall of cylinder body 2 is coaxially arranged with the second annular groove 25, and the second annular groove 25 is embedded with the second sealing ring
251, the bottom wall of limit guide sleeve 22 extends outwardly the pressure ring 223 for being provided with and offseting with 2 bottom wall of cylinder body, for compressing the second sealing
Circle 251, to prevent water from flowing into the flow distribution plate 1 of lower section.
Claims (9)
1. a kind of cylinder cooling structure of needle valve type hot runner, including flow distribution plate and cylinder body, it is provided with piston in the cylinder body, institute
It states piston base and is provided with needle, it is characterised in that: be provided with support plate on the flow distribution plate, the cylinder body is located at support plate
On, the support plate is provided with the relief hole passed through for needle, and the limit guide sleeve passed through for piston, institute are provided in the cylinder body
It states the outer circle wall that limit guide sleeve is bonded with cylinder body and is coaxially arranged with cooling trough, the cylinder body outer circle wall offers and cooling
The water inlet interface and return water interface that sink communicates.
2. the cylinder cooling structure of needle valve type hot runner according to claim 1, it is characterised in that: outside the limit guide sleeve
Circumferential wall, which is located above and below cooling trough, to be respectively set there are two first annular slot, and the first annular slot is embedded with the
One sealing ring.
3. the cylinder cooling structure of needle valve type hot runner according to claim 2, it is characterised in that: the cylinder body bottom wall is same
Axis is provided with the second annular groove, and second annular groove is embedded with the second sealing ring, and the limit guide sleeve bottom wall, which extends outwardly, to be set
It is equipped with and offsets with cylinder body bottom wall, and compress the pressure ring of the second sealing ring.
4. the cylinder cooling structure of needle valve type hot runner according to claim 1, it is characterised in that: the piston upper end is set
It is equipped with the limited block being bonded with inboard wall of cylinder block, the limited block is abutted with limit guide sleeve, and the outer rim of the limited block upper end is coaxial
It is provided with the first air inlet duct, the outer rim of the positioning guide sleeve upper end is coaxially arranged with the second air inlet duct, and the outer wall of cylinder block runs through
It is provided with the air inlet communicated with the first air inlet duct, the second air inlet duct.
5. the cylinder cooling structure of needle valve type hot runner according to claim 4, it is characterised in that: the limited block and cylinder
It shows consideration for the outer circle wall closed and is coaxially arranged with third annular groove, the third annular groove is embedded with third sealing ring.
6. the cylinder cooling structure of needle valve type hot runner according to claim 5, it is characterised in that: the limit guide sleeve with
The inner sidewall of piston fitting is coaxially arranged with fourth annular slot, and the fourth annular slot is embedded with the 4th sealing ring.
7. the cylinder cooling structure of needle valve type hot runner according to claim 1, it is characterised in that: the support plate bottom wall
Protrusion is provided with the cushion block to offset with flow distribution plate.
8. the cylinder cooling structure of needle valve type hot runner according to claim 7, it is characterised in that: the cushion block is in cone
The sectional area of shape, the cushion block successively decreases to flow distribution plate direction.
9. the cylinder cooling structure of needle valve type hot runner according to claim 8, it is characterised in that: shown support plate is along upper
Lower direction is provided with counterbore through support plate and cushion block, bolt is provided in the counterbore, the flow distribution plate is provided with screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991979.7A CN109693345A (en) | 2017-10-23 | 2017-10-23 | A kind of cylinder cooling structure of needle valve type hot runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991979.7A CN109693345A (en) | 2017-10-23 | 2017-10-23 | A kind of cylinder cooling structure of needle valve type hot runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109693345A true CN109693345A (en) | 2019-04-30 |
Family
ID=66226716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710991979.7A Pending CN109693345A (en) | 2017-10-23 | 2017-10-23 | A kind of cylinder cooling structure of needle valve type hot runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109693345A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320099A (en) * | 2021-07-07 | 2021-08-31 | 广东柳道热流道系统有限公司 | Anti-leakage single valve nozzle |
| CN115401874A (en) * | 2022-11-01 | 2022-11-29 | 天津汇泽精密塑料制品有限责任公司 | Needle valve hot runner system and injection mold |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993033Y (en) * | 2006-12-22 | 2007-12-19 | 三阳工业股份有限公司 | Valve improvement structure |
| CN201548537U (en) * | 2009-09-23 | 2010-08-11 | 宝山钢铁股份有限公司 | Metal high temperature experimental temperature control mold |
| CN204340115U (en) * | 2014-12-12 | 2015-05-20 | 东莞市热恒注塑科技有限公司 | There is the cylinder of needle-valve cover cooling structure and there is the TOP-TIP of this cylinder |
| CN105619716A (en) * | 2016-03-17 | 2016-06-01 | 英格斯模具制造（中国）有限公司 | Needle valve type hot runner system |
| CN106217768A (en) * | 2016-07-27 | 2016-12-14 | 苏州好特斯模具有限公司 | Thermostatic type oil gas cylinder single-point needle valve hot flow path |
| CN106931247A (en) * | 2017-04-21 | 2017-07-07 | 重庆欣雨压力容器制造有限责任公司 | Annular arc face cone shape thermal insulation support base and the cryogenic vacuum pipeline with the support base |
| CN107030970A (en) * | 2015-07-27 | 2017-08-11 | 柳道万和(苏州)热流道系统有限公司 | Cylinder assembly and hot flow path injection moulding apparatus for hot flow path injection moulding apparatus |
| CN207403098U (en) * | 2017-10-23 | 2018-05-25 | 苏州汉斯精密模具配件有限公司 | A kind of cylinder cooling structure of needle valve type hot runner |
-
2017
- 2017-10-23 CN CN201710991979.7A patent/CN109693345A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993033Y (en) * | 2006-12-22 | 2007-12-19 | 三阳工业股份有限公司 | Valve improvement structure |
| CN201548537U (en) * | 2009-09-23 | 2010-08-11 | 宝山钢铁股份有限公司 | Metal high temperature experimental temperature control mold |
| CN204340115U (en) * | 2014-12-12 | 2015-05-20 | 东莞市热恒注塑科技有限公司 | There is the cylinder of needle-valve cover cooling structure and there is the TOP-TIP of this cylinder |
| CN107030970A (en) * | 2015-07-27 | 2017-08-11 | 柳道万和(苏州)热流道系统有限公司 | Cylinder assembly and hot flow path injection moulding apparatus for hot flow path injection moulding apparatus |
| CN105619716A (en) * | 2016-03-17 | 2016-06-01 | 英格斯模具制造（中国）有限公司 | Needle valve type hot runner system |
| CN106217768A (en) * | 2016-07-27 | 2016-12-14 | 苏州好特斯模具有限公司 | Thermostatic type oil gas cylinder single-point needle valve hot flow path |
| CN106931247A (en) * | 2017-04-21 | 2017-07-07 | 重庆欣雨压力容器制造有限责任公司 | Annular arc face cone shape thermal insulation support base and the cryogenic vacuum pipeline with the support base |
| CN207403098U (en) * | 2017-10-23 | 2018-05-25 | 苏州汉斯精密模具配件有限公司 | A kind of cylinder cooling structure of needle valve type hot runner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320099A (en) * | 2021-07-07 | 2021-08-31 | 广东柳道热流道系统有限公司 | Anti-leakage single valve nozzle |
| CN115401874A (en) * | 2022-11-01 | 2022-11-29 | 天津汇泽精密塑料制品有限责任公司 | Needle valve hot runner system and injection mold |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190430 |
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| WD01 | Invention patent application deemed withdrawn after publication |