CN204340115U - There is the cylinder of needle-valve cover cooling structure and there is the TOP-TIP of this cylinder - Google Patents

There is the cylinder of needle-valve cover cooling structure and there is the TOP-TIP of this cylinder Download PDF

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Publication number
CN204340115U
CN204340115U CN201420785113.2U CN201420785113U CN204340115U CN 204340115 U CN204340115 U CN 204340115U CN 201420785113 U CN201420785113 U CN 201420785113U CN 204340115 U CN204340115 U CN 204340115U
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China
Prior art keywords
needle
valve
valve cover
cylinder
cooling structure
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CN201420785113.2U
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Chinese (zh)
Inventor
阮军平
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DONGGUAN REHENG INJECTION TECHNOLOGY Co Ltd
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DONGGUAN REHENG INJECTION TECHNOLOGY Co Ltd
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Priority to CN201420785113.2U priority Critical patent/CN204340115U/en
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Abstract

The utility model discloses a kind ofly to be had the cylinder of needle-valve cover cooling structure and has the TOP-TIP of this cylinder, cylinder comprises cylinder block and cylinder head, cylinder block comprises cylinder block body and needle-valve cover cooling structure, needle-valve cover cooling structure is detachably arranged on cylinder block body one end away from cylinder head, cylinder block body is respectively arranged with in needle-valve cover cooling structure the first inner chamber and the second inner chamber that are connected, second inner chamber is arranged in being communicated with the outside of cylinder away from one end of cylinder block body, piston and needle-valve is provided with in cylinder block, one end of needle-valve extends in piston, the other end extends to the outside of cylinder through needle-valve cover cooling structure, piston has piston boss, first inner chamber is divided into upper chamber and lower chambers by piston boss, at least one cold air path is provided with in the sidewall of needle-valve cover cooling structure, the two ends of cold air path communicate with lower chambers and the second inner chamber respectively, with make the air of bottom chamber can enter into needle-valve and needle-valve overlap between reach the object cooling needle-valve and overlap.

Description

There is the cylinder of needle-valve cover cooling structure and there is the TOP-TIP of this cylinder
Technical field
The utility model relates to hot runner mould field, particularly relates to a kind ofly have the cylinder of needle-valve cover cooling structure and have the TOP-TIP of this cylinder.
Background technology
Along with plastic cement raw material and human cost rise day by day, plastic mould is walked cost-saving imperative, hot flow path saves the mouth of a river as one, shortening injection molding cycle, improve the cutting edge technology of quality of item, more and more be used widely, cylinder, needle, valve needle cover is as the core component of needle valve type hot runner, they play the important function of sealing, PP, PET etc. are as a kind of nontoxic plastic material, at food, the industries such as medical treatment are widely used, but PP, PET is the material especially easily making to occur between needle-valve and needle-valve cover excessive glue, in the case of a high temperature when needle and the movable sealing of valve needle cover rigidity, along with the rising of temperature, fit clearance between needle and valve needle cover can be increasing, just there is the risk of excessive glue in gap between needle and valve needle cover when reaching 0.003mm, therefore will make, between needle and valve needle cover, excessive glue to occur, gap between needle and valve needle cover need be made at below 0.003mm, at low temperatures, fit clearance between needle and valve needle cover can reach 0.015mm, as can be seen here, low temperature can make to realize good sealing between needle and valve needle cover, therefore at injection moulding PET, during the plastic materials such as PP, how to cool position that needle matches with valve needle cover and become a very crucial technology.
Utility model content
The purpose of this utility model is that proposing a kind of needle-valve that has that can solve the problem overlaps the cylinder of cooling structure and have the TOP-TIP of this cylinder.
For reaching this object, the utility model by the following technical solutions:
A kind of cylinder with needle-valve cover cooling structure, comprise cylinder block and be sealingly fastened in the cylinder head at described cylinder block top, described cylinder block comprises cylinder block body and needle-valve cover cooling structure, described needle-valve cover cooling structure is detachably arranged on described cylinder block body one end away from described cylinder head, described cylinder block body is respectively arranged with in described needle-valve cover cooling structure the first inner chamber and the second inner chamber that are connected, described second inner chamber is arranged in being communicated with the outside of described cylinder away from one end of described cylinder block body, piston and needle-valve is provided with in described cylinder block, one end of described needle-valve to extend in described piston and arranges with described piston coaxial, the other end extends to the outside of described cylinder through described needle-valve cover cooling structure, described piston has the piston boss abutted against with the inwall of described cylinder block body, described first inner chamber is divided into upper chamber and lower chambers by described piston boss, the arranged outside of described cylinder block has the upper breather pipe and lower breather pipe that communicate with described upper chamber and described lower chambers respectively, at least one cold air path is provided with in the sidewall of described needle-valve cover cooling structure, the two ends of described cold air path communicate with described lower chambers and described second inner chamber respectively.
As the preferred technical scheme of one of cylinder with needle-valve cover cooling structure, the angle between the axis that the center line of described cold air path and described needle-valve overlap cooling structure is 30 °-60 °.
Between the center line line being overlapped cooling structure by the center line and needle-valve arranging cold air path, angle is 30 °-60 °, when piston actuated needle-valve rises, namely when needle-valve carries out injection moulding to product, can ensure that the air of bottom chamber enters in the second inner chamber by cold air path, and then make air can enter into needle-valve and needle-valve cover between and cool needle-valve cover, with make needle-valve and needle-valve cover between do not leak glue; And when piston actuated needle-valve declines, namely during needle-valve sealing, can ensure that the air in upper chamber can not enter in the second inner chamber by cold air path, and then air can not be entered between needle-valve and needle-valve cover, can needle-valve be driven fast to realize sealing under the active force of the air that such piston can be many in upper chamber.
As the preferred technical scheme of one of cylinder with needle-valve cover cooling structure, described cold air path is two, and two described cold air paths are symmetricly set in the sidewall of described needle-valve cover cooling structure.
As the preferred technical scheme of one of cylinder with needle-valve cover cooling structure, between the inwall of described piston and described needle-valve cover cooling structure and between the inwall of described piston boss and described cylinder block body, be provided with sealing ring.
As the preferred technical scheme of one of cylinder with needle-valve cover cooling structure, described piston is provided with needle-valve button cavity away from one end of described needle-valve cover cooling structure, needle-valve button is detachably provided with in described needle-valve button cavity, one end that described needle-valve extends to described internal piston is removably connected by needle-valve boss and described needle-valve button, be provided with resilient sleeve in the outer race of described needle-valve near one end of described needle-valve boss, in described needle-valve button cavity, be provided with the first step abutted against with described resilient sleeve.
As the preferred technical scheme of one of cylinder with needle-valve cover cooling structure, in described needle-valve button cavity, be also provided with the second step that can abut against with the bottom of described needle-valve button.
As the preferred technical scheme of one of cylinder with needle-valve cover cooling structure, described needle-valve cover cooling structure is removably connected by screw and described cylinder block body.
The utility model additionally provides a kind of TOP-TIP, it flow distribution plate comprising mold panel and be arranged on described mold panel side, be provided with the cylinder as above with needle-valve cover cooling structure in described mold panel, one end of the needle-valve of described cylinder is run through described flow distribution plate and is extended to the side of described flow distribution plate away from described cylinder.
The preferred technical scheme of one as TOP-TIP, a sprue is provided with in described flow distribution plate, described sprue is made up of the first flow of level and the second vertical runner, described first flow and described second flow passage, described needle-valve extends to outside described flow distribution plate away from one end of described cylinder through described second runner, described needle-valve nested structure comprises needle-valve cover and can press the needle-valve adjustment block put in described needle-valve, described needle-valve adjustment block and described needle-valve cover is dismountable to be arranged in described flow distribution plate and to be sheathed on the periphery of described needle-valve, described needle-valve adjustment block is positioned at the top of described needle-valve cover, described second inner chamber of described needle-valve cover cooling structure communicates with the inner chamber of described needle-valve adjustment block, to make the cold air of bottom chamber can successively by described cold air path, described second inner chamber, the inner chamber of described needle-valve adjustment block enters between described needle-valve cover and described needle-valve.
The preferred technical scheme of one as TOP-TIP, described needle-valve cover comprises the needle-valve cover flange for being positioned by described needle-valve cover in described flow distribution plate, the 3rd step overlapping flange with described needle-valve and contact is provided with in described flow distribution plate, described needle-valve cover flange is provided with the needle-valve cover first end that can insert in described needle-valve adjustment block near the side of described mold panel, described needle-valve cover flange arranges needle-valve away from the side of described mold panel and overlaps the second end, the diameter that described needle-valve cover first end and described needle-valve overlap the second end is all less than the diameter that described needle-valve overlaps flange, described needle-valve overlaps the junction that the second end is positioned at described first flow and described second runner.
The preferred technical scheme of one as TOP-TIP, described needle-valve adjustment block comprises the adjustment block flange overlapping flange with described needle-valve and abut against, described adjustment block flange is provided with the force pipe overlapping cooling structure with described needle-valve and abut against away from the side of described needle-valve cover flange, the lateral wall of described adjustment block flange is provided with adjustment block external screw thread, in described flow distribution plate, is provided with the flow distribution plate internal thread matched with described adjustment block external screw thread.
Contrast prior art, the beneficial effects of the utility model are: the utility model by arranging cold air path on needle-valve cover cooling structure, when needle-valve carries out injection moulding to product, cold air path air low for the temperature of bottom chamber can be incorporated into needle-valve and needle-valve overlap between gap location, cooled to make needle-valve cover, and then make the matched in clearance between needle-valve and needle-valve cover be less than 0.003mm, leak the generation of glue phenomenon when avoiding needle-valve injection moulding between needle-valve and needle-valve cover.
Accompanying drawing explanation
Fig. 1 is the structure chart with the cylinder of needle-valve cover cooling structure described in the utility model embodiment.
Fig. 2 is the structure chart of the TOP-TIP described in the utility model embodiment.
In figure:
1, mold panel;
2, cylinder; 21, cylinder block; 211, cylinder block body; 2111, upper chamber; 212, needle-valve cover cooling structure; 2121, cold air path; 2122, the second inner chamber; 22, cylinder head; 23, piston; 231, piston boss; 232, first step; 233, second step; 24, needle-valve; 241, needle-valve boss; 25, needle-valve button; 26, resilient sleeve; 27, upper breather pipe; 28, lower breather pipe; 29, sealing ring;
3, flow distribution plate; 31, the 3rd step; 32, sprue; 321, first flow; 322, the second runner;
4, needle-valve cover; 41, needle-valve cover flange; 42, needle-valve cover first end; 43, needle-valve overlaps the second end;
5, needle-valve adjustment block; 51, adjustment block flange; 52, force pipe;
6, briquetting.
Detailed description of the invention
The technical solution of the utility model is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
As shown in Figure 1, disclosed in the present embodiment, a kind of cylinder 2 with needle-valve cover cooling structure comprises cylinder block 21 and is sealingly fastened in the cylinder head 22 at cylinder block 21 top, cylinder block 21 comprises cylinder block body 211 and the needle-valve cover cooling structure 212 for cooling needle-valve cover 4, needle-valve cover cooling structure 212 is detachably arranged on cylinder block body 211 one end away from cylinder head 22, cylinder block body 211 is respectively arranged with in needle-valve cover cooling structure 212 the first inner chamber and the second inner chamber 2122 that are connected, second inner chamber 2122 is arranged in being communicated with the outside of cylinder 2 away from one end of cylinder block body 211, piston 23 and needle-valve 24 is provided with in cylinder block 21, one end of needle-valve 24 to extend in piston 23 and coaxially arranges with piston 23, the other end extends to the outside of cylinder 2 through needle-valve cover cooling structure 212, piston 23 is provided with in cylinder block 21, piston 23 has the piston boss 231 abutted against with the inwall of cylinder block body 211, first inner chamber is divided into upper chamber 2111 and lower chambers (not marking in figure) by piston boss 231, the arranged outside of cylinder block 21 has the upper breather pipe 27 and lower breather pipe 28 that communicate with upper chamber 2111 and lower chambers respectively, at least one cold air path 2121 is provided with in the sidewall of needle-valve cover cooling structure 212, the two ends of cold air path 2121 communicate with lower chambers and the second inner chamber 2122 respectively, piston 23 is removably connected with needle-valve 24, the bottom that cooling structure 212 is overlapped by needle-valve in the lower end of needle-valve 24 is stretched out.
By arranging needle-valve cover cooling structure 212, when needle-valve 24 pairs of products carry out injection moulding, make needle-valve overlap cold air path 2121 on cooling structure 212 and the second inner chamber 2122 air low for the temperature of bottom chamber to be incorporated into needle-valve 24 and needle-valve and to overlap gap location between 4, to reach the object of cooling needle-valve cover 4, and then make the matched in clearance between needle-valve 24 and needle-valve cover 4 be less than 0.003mm, avoid the generation of leaking glue phenomenon between needle-valve 24 and needle-valve cover 4.
In the present embodiment, the center line of cold air path 2121 and needle-valve overlap cooling structure 212 axis between angle be 38 °.
Between the center line line being overlapped cooling structure 212 by the center line and needle-valve arranging cold air path 2121, angle is 38 °, when piston 23 drives needle-valve 24 to rise, namely when needle-valve 24 pairs of products carry out injection moulding, can ensure that the air of bottom chamber enters in the second inner chamber 2122 by cold air path 2121, and then make air can enter into needle-valve 24 and needle-valve cover 4 between and cool needle-valve cover 4, with make needle-valve 24 and needle-valve cover 4 between do not leak glue; And when piston 23 drives needle-valve 24 to decline, namely during needle-valve 24 sealing, can ensure that the air in upper chamber 2111 can not enter in the second inner chamber 2122 by cold air path 2121, and then air can not be entered between needle-valve 24 and needle-valve cover 4, needle-valve 24 can be driven fast to realize sealing under the active force of the air that such piston 23 can be many in upper chamber 2111.
In the present embodiment, cold air path 2121 is two, and two cold air paths 2121 are symmetricly set in the sidewall of needle-valve cover cooling structure 212.
In order to strengthen the sealing of cylinder 2, between the inwall of piston 23 and cooling needle-valve cover 4 and between the inwall of piston boss 231 and cylinder block body 211, be provided with sealing ring 29.
Piston 23 is provided with needle-valve button cavity away from one end of needle-valve cover cooling structure 212, needle-valve button 25 is detachably provided with in needle-valve button cavity, one end that needle-valve 24 extends to piston 23 inside is removably connected by needle-valve boss 241 and needle-valve button 25, be provided with resilient sleeve 26 in the outer race of needle-valve 24 near one end of needle-valve boss 241, in needle-valve button cavity, be provided with the first step 232 abutted against with resilient sleeve 26.
The second step 233 that can abut against with the bottom of needle-valve button 25 is also provided with in needle-valve button cavity.By arranging second step 233, making needle-valve button 25 that needle-valve boss 241 is pressed to certain position, just being blocked by second step 233, the plastic deformation that resilient sleeve 26 causes because of too pressing down of needle-valve button 25 pairs of needle-valve boss 241 can be avoided.
In the present embodiment, needle-valve cover cooling structure 212 is removably connected by screw and cylinder block body 211.
Refer to Fig. 2, the invention also discloses a kind of TOP-TIP, comprise mold panel 1 and the flow distribution plate 3 being arranged on mold panel 1 side, be provided with the cylinder 2 as above with needle-valve cover cooling structure 212 in mold panel 1, one end of the needle-valve 24 of cylinder 2 is run through flow distribution plate 3 and is extended to the side of described flow distribution plate 3 away from cylinder 2.A sprue 32 is provided with in flow distribution plate 3, sprue 32 is made up of the first flow 321 of level and the second vertical runner 322, first flow 321 is communicated with the second runner 322, needle-valve 24 extends to outside flow distribution plate 3 away from one end of cylinder 2 through the second runner 322, the needle-valve adjustment block 5 that needle-valve nested structure comprises needle-valve cover 4 and can press in needle-valve cover 4, needle-valve adjustment block 5 and needle-valve overlap 4 and to be dismountablely arranged in flow distribution plate 3 and to be sheathed on the periphery of needle-valve 24, needle-valve adjustment block 5 is positioned at the top of needle-valve cover 4, second inner chamber 2122 of needle-valve cover cooling structure 212 communicates with the inner chamber of needle-valve adjustment block 5, to make the cold air of bottom chamber can successively by cold air path 2121, the inner chamber of the second inner chamber 2122 and needle-valve adjustment block 5 enters between needle-valve cover 4 and needle-valve 24.
Concrete, sealing state is in when needle-valve 24 need be made, even if when hot flow path is in and stops injection moulding state, without the need to stoping excessive glue between needle-valve 24 and needle-valve cover 4, extraneous cold air enters in the upper chamber 2111 of cylinder block body 211 by upper breather pipe 27, move downward under the active force of the gas of piston 23 in upper chamber 2111, and needle-valve 24 also moves downward in the drive of piston 23, the sprue 32 now controlled by needle-valve 24 is closed, when pickup complete need carry out injection moulding next time time, the turnover of outside air in cylinder 2 turns under solenoid control, air enters into bottom chamber by lower breather pipe 28, piston 23 moves downward under the active force of the air of bottom chamber, and needle-valve 24 also moves upward under the drive of piston 23, the sprue 32 now controlled by needle-valve 24 is opened, in the process, due to the existence of the cold air path 2121 on needle-valve cover cooling structure 212, the gas of bottom chamber can enter into gap location between needle-valve 24 and needle-valve cover 4 by cold air path 2121, needle-valve cover 4 temperature under the cooling of cold air is reduced rapidly, within making needle-valve 24 and the needle-valve gap overlapped between 4 remain on 0.003mm, thus make, between needle-valve 24 and needle-valve cover 4, excessive glue to occur.
Needle-valve cover 4 comprises the needle-valve cover flange 41 for being positioned by needle-valve cover 4 in flow distribution plate 3, the 3rd step 31 overlapping flange 41 with needle-valve and contact is provided with in flow distribution plate 3, needle-valve cover flange 41 is provided with the needle-valve cover first end 42 that can insert in needle-valve adjustment block 5 near the side of mold panel 1, needle-valve cover flange 41 arranges needle-valve away from the side of mold panel 1 and overlaps the second end 43, the diameter that needle-valve cover first end 42 and needle-valve overlap the second end 43 is all less than the diameter that needle-valve overlaps flange 41, and needle-valve overlaps the junction that the second end 43 is positioned at first flow 321 and the second runner 322.
Needle-valve adjustment block 5 comprises the adjustment block flange 51 overlapping flange 41 with needle-valve and abut against, adjustment block flange 51 is provided with away from the side of needle-valve cover flange 41 the force pipe 52 overlapping cooling structure 212 with needle-valve and abut against, the lateral wall of adjustment block flange 51 is provided with adjustment block external screw thread, in flow distribution plate 3, is provided with the flow distribution plate internal thread matched with adjustment block external screw thread.
Concrete, when needle-valve being overlapped 4 and be stable in flow distribution plate 3, needle-valve adjustment block 5 is made to press thereon by rotating needle-valve adjustment block 5, when needle-valve being overlapped 4 and take out in flow distribution plate 3, by rotating needle-valve adjustment block 5 in the other direction, needle-valve adjustment block 5 is separated with flow distribution plate 3, and then needle-valve cover 4 is taken out in flow distribution plate 3.
In the present embodiment, pipe 52 is exerted a force in hexagonal shape.By being hexagonal shape by the profile design of force pipe 52, people can be made can better to force in needle-valve adjustment block 5, to realize needle-valve adjustment block 5 installation and removal fast.
Be provided with the briquetting 6 that can contact with flow distribution plate 3 and mold panel 1 between flow distribution plate 3 with mold panel 1, briquetting 6 and needle-valve 24 concentric, the position that needle-valve cover cooling structure 212 and force pipe 52 abut against is positioned at the inner chamber of briquetting 6.
By arranging briquetting 6 between flow distribution plate 3 and mold panel 1, mold panel 1 is made to press on flow distribution plate 3 by briquetting 6, make the weight in mold panel 1 not be all be applied on needle-valve cover cooling structure 212, and then reduce in use the occurred distortion of needle-valve cover cooling structure 212.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present utility model, and these modes all will fall within protection domain of the present utility model.

Claims (10)

1. one kind has the cylinder of needle-valve cover cooling structure, it is characterized in that, comprise cylinder block and be sealingly fastened in the cylinder head at described cylinder block top, described cylinder block comprises cylinder block body and needle-valve cover cooling structure, described needle-valve cover cooling structure is detachably arranged on described cylinder block body one end away from described cylinder head, described cylinder block body is respectively arranged with in described needle-valve cover cooling structure the first inner chamber and the second inner chamber that are connected, described second inner chamber is arranged in being communicated with the outside of described cylinder away from one end of described cylinder block body, piston and needle-valve is provided with in described cylinder block, one end of described needle-valve to extend in described piston and arranges with described piston coaxial, the other end extends to the outside of described cylinder through described needle-valve cover cooling structure, described piston has the piston boss abutted against with the inwall of described cylinder block body, described first inner chamber is divided into upper chamber and lower chambers by described piston boss, the arranged outside of described cylinder block has the upper breather pipe and lower breather pipe that communicate with described upper chamber and described lower chambers respectively, at least one cold air path is provided with in the sidewall of described needle-valve cover cooling structure, the two ends of described cold air path communicate with described lower chambers and described second inner chamber respectively.
2. the cylinder with needle-valve cover cooling structure according to claim 1, is characterized in that, the angle between the axis that the center line of described cold air path and described needle-valve overlap cooling structure is 30 ° ~ 60 °.
3. the cylinder with needle-valve cover cooling structure according to claim 1, it is characterized in that, described cold air path is two, and two described cold air paths are symmetricly set in the sidewall of described needle-valve cover cooling structure.
4. the cylinder with needle-valve cover cooling structure according to claim 1, is characterized in that, is provided with sealing ring between the inwall of described piston and described needle-valve cover cooling structure and between the inwall of described piston boss and described cylinder block body.
5. the cylinder with needle-valve cover cooling structure according to claim 1, it is characterized in that, described piston is provided with needle-valve button cavity away from one end of described needle-valve cover cooling structure, needle-valve button is detachably provided with in described needle-valve button cavity, one end that described needle-valve extends to described internal piston is removably connected by needle-valve boss and described needle-valve button, be provided with resilient sleeve in the outer race of described needle-valve near one end of described needle-valve boss, in described needle-valve button cavity, be provided with the first step abutted against with described resilient sleeve.
6. the cylinder with needle-valve cover cooling structure according to claim 5, is characterized in that, be also provided with the second step that can abut against with the bottom of described needle-valve button in described needle-valve button cavity.
7. the cylinder with needle-valve cover cooling structure according to claim 1, is characterized in that, described needle-valve cover cooling structure is removably connected by screw and described cylinder block body.
8. a TOP-TIP, comprise mold panel and the flow distribution plate being arranged on described mold panel side, it is characterized in that, be provided with the cylinder with needle-valve cover cooling structure as described in any one of claim 1 to 7 in described mold panel, one end of the needle-valve of described cylinder is run through described flow distribution plate and is extended to the side of described flow distribution plate away from described cylinder.
9. TOP-TIP according to claim 8, it is characterized in that, a sprue is provided with in described flow distribution plate, described sprue is made up of the first flow of level and the second vertical runner, described first flow and described second flow passage, described needle-valve extends to outside described flow distribution plate away from one end of described cylinder through described second runner, described needle-valve nested structure comprises needle-valve cover and can press the needle-valve adjustment block put in described needle-valve, described needle-valve adjustment block and described needle-valve cover is dismountable to be arranged in described flow distribution plate and to be sheathed on the periphery of described needle-valve, described needle-valve adjustment block is positioned at the top of described needle-valve cover, described second inner chamber of described needle-valve cover cooling structure communicates with the inner chamber of described needle-valve adjustment block, to make the cold air of bottom chamber can successively by described cold air path, described second inner chamber, the inner chamber of described needle-valve adjustment block enters between described needle-valve cover and described needle-valve.
10. TOP-TIP according to claim 9, it is characterized in that, described needle-valve cover comprises the needle-valve cover flange for being positioned by described needle-valve cover in described flow distribution plate, the 3rd step overlapping flange with described needle-valve and contact is provided with in described flow distribution plate, described needle-valve cover flange is provided with the needle-valve cover first end that can insert in described needle-valve adjustment block near the side of described mold panel, described needle-valve cover flange arranges needle-valve away from the side of described mold panel and overlaps the second end, the diameter that described needle-valve cover first end and described needle-valve overlap the second end is all less than the diameter that described needle-valve overlaps flange, described needle-valve overlaps the junction that the second end is positioned at described first flow and described second runner.
CN201420785113.2U 2014-12-12 2014-12-12 There is the cylinder of needle-valve cover cooling structure and there is the TOP-TIP of this cylinder Active CN204340115U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106050791A (en) * 2016-07-27 2016-10-26 苏州好特斯模具有限公司 Piston assembly with valve needle positioning function
CN106051279A (en) * 2016-07-27 2016-10-26 苏州好特斯模具有限公司 Square piston oil cylinder system with valve needle positioning function
CN106346713A (en) * 2015-07-15 2017-01-25 柳道(青岛)热流道系统有限公司 Valve needle mounting structure
CN109159380A (en) * 2018-11-09 2019-01-08 哈希斯热流道科技(苏州)有限公司 A kind of injection mold double-piston needle-valve driving device
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
CN114932657A (en) * 2022-05-21 2022-08-23 邓杰 Electric needle valve type hot runner system
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

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106346713A (en) * 2015-07-15 2017-01-25 柳道(青岛)热流道系统有限公司 Valve needle mounting structure
CN106346713B (en) * 2015-07-15 2019-03-29 柳道(青岛)热流道系统有限公司 Needle mounting structure
CN106050791A (en) * 2016-07-27 2016-10-26 苏州好特斯模具有限公司 Piston assembly with valve needle positioning function
CN106051279A (en) * 2016-07-27 2016-10-26 苏州好特斯模具有限公司 Square piston oil cylinder system with valve needle positioning function
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
CN109159380A (en) * 2018-11-09 2019-01-08 哈希斯热流道科技(苏州)有限公司 A kind of injection mold double-piston needle-valve driving device
CN109159380B (en) * 2018-11-09 2023-12-12 哈希斯热流道科技(苏州)有限公司 Injection mold double-piston needle valve driving device
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
CN114932657A (en) * 2022-05-21 2022-08-23 邓杰 Electric needle valve type hot runner system
CN114932657B (en) * 2022-05-21 2023-10-10 东莞市三跃实业有限公司 Electric needle valve type hot runner system
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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