CN207403098U - 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
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- CN207403098U CN207403098U CN201721370274.5U CN201721370274U CN207403098U CN 207403098 U CN207403098 U CN 207403098U CN 201721370274 U CN201721370274 U CN 201721370274U CN 207403098 U CN207403098 U CN 207403098U
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- cylinder body
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- hot runner
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Abstract
The utility model discloses a kind of cylinder cooling structures of needle valve type hot runner, including flow distribution plate and cylinder body, piston are provided in the cylinder body, the piston base is provided with needle, it is characterised in that：Support plate is provided 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 /V guide sleeve passed through for piston is provided in the cylinder body, the outer circle wall that the /V guide sleeve is bonded with cylinder body is coaxially arranged with bosh, the cylinder body outer circle wall offers the water inlet interface communicated with bosh and return water interface, its key points of the technical solution are that by setting support plate, reduce heat transfer of the flow distribution plate to cylinder body, by setting bosh, reduce heat transfer of the cylinder body to piston, the sealing element on piston is protected not to be damaged.
Description
Technical field
The utility model is related to needle valve type hot runner technical field, more specifically, it relates to a kind of needle valve type hot runner
Cylinder cooling structure.
Background technology
Hot flow path is to ensure 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 will height.
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.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of cylinders of needle valve type hot runner
Cooling structure, tool can cool to the piston of cylinder, reduce the advantage of heat transfer between cylinder and flow distribution plate.
To achieve the above object, the utility model provides following technical solution：
Including flow distribution plate and cylinder body, piston is provided in the cylinder body for a kind of cylinder cooling structure of needle valve type hot runner,
The 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, the support
Plate is provided with the relief hole passed through for needle, and the /V guide sleeve passed through for piston, the /V guide sleeve are provided in the cylinder body
The outer circle wall being bonded with cylinder body is coaxially arranged with bosh, and the cylinder body outer circle wall offers what is communicated with bosh
Water inlet interface and return water interface.
Preferably, the /V guide sleeve outer circle wall, which is located above and below bosh, is respectively arranged with 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 /V 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 /V 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 the 3rd annular groove, the tricyclic
Shape slot is embedded with the 3rd sealing ring.
Preferably, the madial wall that the /V 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 is provided with counterbore through support plate and cushion block along the vertical direction, is set in the counterbore
There is bolt, the flow distribution plate is provided with screw hole.
Compared with prior art, the utility model has the advantages that：
By installing a /V guide sleeve in cylinder body, recirculated water is passed through in water inlet interface and return water interface, makes to follow
Ring water forms cooling water channel by the bosh on /V guide sleeve between inboard wall of cylinder block, so as to reduce less on cylinder body again
Heat transfer to piston on；By setting multiple sealing elements, it is capable of the leakproofness of holding mechanism, prevents leak gas leakage；It is logical
Setting support plate is crossed, can be reduced on heat transfer to the cylinder body on flow distribution plate, by setting the cushion block of taper, for reducing branch
The contact area of fagging and flow distribution plate, is further reduced heat transfer.
Description of the drawings
Fig. 1 is the structure diagram of the present embodiment；
Fig. 2 is the enlarged drawing of part A in Fig. 1.
In figure：1st, flow distribution plate；2nd, cylinder body；21st, piston；211st, needle；3rd, support plate；31st, relief hole；22nd, /V guide sleeve；
221st, bosh；23rd, water inlet interface；24th, return water interface；222nd, first annular slot；2221st, the first sealing ring；25th, the second ring
Shape slot；251st, the second sealing ring；223rd, pressure ring；212nd, limited block；26th, air inlet；2121st, the first air inlet duct；224th, second into
Air drain；2122nd, the 3rd annular groove；2123rd, the 3rd sealing ring；225th, fourth annular slot；2251st, the 4th sealing ring；32nd, cushion block；
33rd, counterbore；331st, bolt；11st, screw hole.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
The present embodiment is only explanation to the utility model, is not the limitation to the utility model, this field skill
Art personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as
It is all protected in the right of the utility model be subject to Patent Law.
The cylinder cooling structure of a kind of needle valve type hot runner, with reference to Fig. 1 and 2, including flow distribution plate 1 and cylinder body 2, cylinder body 2
Piston 21 is inside provided with, 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
Bolt 331 is provided with, 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 put, the contact area between support plate 3 and flow distribution plate 1 can be reduced, be further reduced heat transfer.
The /V guide sleeve 22 passed through for piston 21 is provided in cylinder body 2, /V 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 /V 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 22 upper end of /V guide sleeve is coaxially arranged with
Two air inlet ducts 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,
For piston 21 to be driven to move up and down；Limited block 212 is coaxially arranged with the 3rd annular groove with the outer circle wall that cylinder body 2 is bonded
2122, the 3rd annular groove 2122 is embedded with the 3rd sealing ring 2123, to prevent gas leakage between 2 inner wall of limited block 212 and cylinder body；Limit
Position guide sleeve 22 is coaxially arranged with fourth annular slot 225 with the madial wall that piston 21 is bonded, and it is close that fourth annular slot 225 is embedded with the 4th
Seal 2251, to prevent that gas leakage occurs between piston 21 and /V guide sleeve 22.
/V guide sleeve 22 is coaxially arranged with bosh 221 with the outer circle wall that cylinder body 2 is bonded, 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 bosh 221, and form Xun Huan
Cooling water channel, water inlet interface 23 is connected water inlet pipe and return pipe respectively with return water interface 24；22 outer circle wall position of /V guide sleeve
Two first annular slots 222 are respectively arranged with above and below bosh 221, two first annular slots 222 are embedded with
First 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 /V guide sleeve 22 extends outwardly the pressure ring 223 for being provided with and offseting with 2 bottom wall of cylinder body, for the second sealing of compression
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, is provided with piston, institute in the cylinder body
It states piston base and is provided with needle, it is characterised in that：Support plate is provided 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 /V guide sleeve passed through for piston, institute are provided in the cylinder body
It states the outer circle wall that /V guide sleeve is bonded with cylinder body and is coaxially arranged with bosh, the cylinder body outer circle wall is offered and cooled down
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 /V guide sleeve
Circumferential wall, which is located above and below bosh, is respectively arranged with two first annular slots, and the first annular slot is embedded with
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 /V 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
The limited block being bonded with inboard wall of cylinder block is equipped with, the limited block is abutted with /V guide sleeve, and the outer rim of the limited block upper end is coaxial
The first air inlet duct is provided with, the outer rim of the /V 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 the 3rd annular groove, the 3rd annular groove is embedded with the 3rd sealing ring.
6. the cylinder cooling structure of needle valve type hot runner according to claim 5, it is characterised in that：The /V guide sleeve with
The madial wall 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
Shape, the sectional area of the cushion block successively decrease 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 with 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 |
|---|---|---|---|
| CN201721370274.5U CN207403098U (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 |
|---|---|---|---|
| CN201721370274.5U CN207403098U (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 |
|---|---|
| CN207403098U true CN207403098U (en) | 2018-05-25 |
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ID=62321146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721370274.5U Active CN207403098U (en) | 2017-10-23 | 2017-10-23 | A kind of cylinder cooling structure of needle valve type hot runner |
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| Country | Link |
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| CN (1) | CN207403098U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693345A (en) * | 2017-10-23 | 2019-04-30 | 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 |
| CN111660509A (en) * | 2019-03-05 | 2020-09-15 | 苏州斯曼迪热流道系统有限公司 | Valve needle type hot runner system |
| CN116753137A (en) * | 2023-05-30 | 2023-09-15 | 烟台东德氢能技术有限公司 | Circulation liquid seal compression cylinder and drive assembly |
-
2017
- 2017-10-23 CN CN201721370274.5U patent/CN207403098U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693345A (en) * | 2017-10-23 | 2019-04-30 | 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 |
| CN111660509A (en) * | 2019-03-05 | 2020-09-15 | 苏州斯曼迪热流道系统有限公司 | Valve needle type hot runner system |
| CN116753137A (en) * | 2023-05-30 | 2023-09-15 | 烟台东德氢能技术有限公司 | Circulation liquid seal compression cylinder and drive assembly |
| CN116753137B (en) * | 2023-05-30 | 2024-04-23 | 烟台东德氢能技术有限公司 | Circulation liquid seal compression cylinder assembly |
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