CN107042610A - Can be dammed nozzle - Google Patents
Can be dammed nozzle Download PDFInfo
- Publication number
- CN107042610A CN107042610A CN201710222864.1A CN201710222864A CN107042610A CN 107042610 A CN107042610 A CN 107042610A CN 201710222864 A CN201710222864 A CN 201710222864A CN 107042610 A CN107042610 A CN 107042610A
- Authority
- CN
- China
- Prior art keywords
- expansion link
- cylinder body
- nozzle
- flow
- rod set
- 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
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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
- B29C45/20—Injection nozzles
- B29C45/23—Feed stopping equipment
- B29C45/231—Needle valve systems 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
- B29C45/74—Heating or cooling of the injection unit
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention can dam nozzle suitable for the nozzle technical field of injection machine there is provided one kind, including base and promote cylinder, promote cylinder to include cylinder body, expansion link and rod set.Cylinder body is installed on base, and rod set is set on the outer peripheral edge of expansion link, promotes expansion link to do telescopic movable relative to rod set when cylinder body works.First flow is offered in base；Second flow channel is offered in expansion link, the entrance of second flow channel is located at expansion link on the outer peripheral edge of first flow one end.When expansion link stretches out, the entrance of second flow channel abuts the inwall of rod set, and the passage between second flow channel and first flow is blocked；When expansion link is retracted, the entrance of second flow channel leaves rod set inwall and connected with first flow.The present invention improves the coaxial power of expansion link, expansion link is set to be maintained at center, and then the power that expansion link is acted on rod set inwall is uniform, the abrasion of the possible caused expansion link of side load and rod set can be reduced as far as possible, so as to avoid the occurrence of the problem of injected plastics material is leaked.
Description
Technical field
The invention belongs to the nozzle technical field of injection machine, more particularly to one kind can dam nozzle.
Background technology
Along with plastic material each industrial circle extensive use, the manufacturing process of plastic material, manufacturing technology with
And manufacturing equipment has also obtained significant progress.It is that one of which uses more plastic material manufacturing technology to project injection.
It is usually to melt plastic material in barrel to project injection, and by the promotion of screw rod, melt is arrived by nozzle fast injection
In mold cavity, then process solidifying and setting obtains injecting products.Nozzle is the transition portion for connecting barrel and mould.
Nozzle is internally provided with the valve arrangement for closing material runner, injection machine injection moulding process, and valve arrangement is opened, from
And material can flow through nozzle and project to mould；When injection moulding machine feed back, valve arrangement is closed, to prevent material from flowing out.It is existing
Valve arrangement form it is more, but the position discontinuity that existing valve arrangement is contacted with material runner, after working long hours
Nozzle internal structure serious wear, the problem of material leakage easily occur.
In addition, when the fluent material such as injection silica gel, rubber, it is necessary to keep material 15 before heating mould is injected into
To between 25 DEG C of temperature, so that material keeps liquid condition.In order that material keeps the temperature needed, in the prior art in material
Runner outside be provided with complicated cooling pipe.
The content of the invention
The technical problems to be solved by the invention are that providing one kind can dam nozzle, it is intended to solve of the prior art penetrate
Present in mouth because of internal structure serious wear, the problem of easily there is material leakage.
The present invention is achieved in that one kind can dam nozzle, including base and promotes cylinder, and the promotion cylinder includes cylinder
Body, expansion link and rod set, the cylinder body are installed on the base, and the rod set is set in the outer peripheral edge of the expansion link
On, promote the expansion link to do telescopic movable relative to the rod set during cylinder body work；Offered in the base for note
The first flow of moulding material circulation；The second flow channel circulated for injected plastics material, the second flow channel are offered in the expansion link
Entrance be located at the expansion link on the outer peripheral edge of one end of first flow, the outlet of the second flow channel is located at described stretch
The one end of contracting bar away from first flow；When the expansion link stretches out away from the base direction, the entrance of the second flow channel
Against the inwall of the rod set, the inwall of the rod set blocks the passage between second flow channel and first flow；Stretched when described
Contracting bar to the base direction retract when, the entrance of the second flow channel leaves the rod set inwall and connected with the first flow
It is logical.
Further, the cylinder body includes from outside to inside outer cylinder body, piston and the inner cylinder body of nesting, the inner casing successively
Body is fixedly connected with the piston, and the first inlet channel, the second inlet channel are offered in the outer cylinder body and is lived for the piston
Dynamic space, the one end of the piston protrudes out forced section, the outlet of first inlet channel and the second inlet channel
Outlet respectively be located at the space two ends, the force part is in the space.
Further, the cross section of the outer cylinder body, piston and inner cylinder body is annular shape.
Further, the nozzle that dams also includes setting ring-type neck on retainer ring, the outer peripheral edge of the expansion link,
The part-structure of the retainer ring is embedded in the ring-type neck, and the inner cylinder body leans the retainer ring away from the second
One end of road outlet, also, the piston snaps connection with the retainer ring.
Further, the retainer ring includes the flange of two splits, the removable connection of described two flanges.
Further, the second flow channel includes an injection runner and some convergence runners；Some convergences
The entrance of runner is respectively distributed on the outer peripheral edge of the expansion link, and the outlet of all convergence runners is gathered into together, and
It is connected with the injection runner.
Further, the nozzle that dams also includes mounting flange, and the base is arranged on by the mounting flange
The outlet port of material storage tube is injected, the mounting flange offers runner, the entrance of the runner of the mounting flange, outlet difference
Connected with the injection material storage tube, first flow.
Further, cooling water channel is offered in the mounting flange, base and inner cylinder body, the mounting flange,
The cooling water channel of base and inner cylinder body collectively forms the cooling water channel for cooling down injected plastics material.
Further, the position on the expansion link outer peripheral edge positioned at second flow channel entrance side is additionally provided with taper surface,
The taper surface matched with the taper surface of expansion link is also equipped with the inwall of the rod set.
Further, the expansion link is tapered close to the end of first flow.
Compared with prior art, beneficial effect is the present invention：The nozzle that dams of the present invention, its expansion link offers confession
The second flow channel of injected plastics material circulation, the entrance of second flow channel is located on the outer peripheral edge of expansion link, and expansion link is promoted when promoting cylinder
During stretching, the entrance of second flow channel abuts the inwall of rod set, and inwall blocks the passage between second flow channel and first flow, from
And entrance is closed, now injection machine can carry out feed back operation；When promoting cylinder to promote expansion link to retract, the entrance of second flow channel
The inwall of rod set is left, so that entrance can be connected with first flow, now injection machine can carry out injection operation.The present invention is improved
The coaxial power of expansion link, enables expansion link to be maintained at center, and then the power that expansion link is acted on rod set inwall is uniform, can be to the greatest extent
Amount reduces the abrasion of the possible caused expansion link of side load and rod set, so as to avoid the occurrence of the problem of injected plastics material is leaked.
Brief description of the drawings
One or more embodiments are illustrative by the picture in corresponding accompanying drawing, these exemplary theorys
The element with same reference numbers label is expressed as similar element in the bright restriction not constituted to embodiment, accompanying drawing, removes
Composition is not limited the non-figure having in special statement, accompanying drawing.
Fig. 1 is longitudinal schematic cross-sectional view when the nozzle provided in an embodiment of the present invention that dams is in injection state；
Fig. 2 is longitudinal schematic cross-sectional view when can dam nozzle shown in Fig. 1 in feed back state；
Fig. 3 be can dam shown in Fig. 1 nozzle expansion link dimensional structure diagram.
Embodiment
In order that technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figures 1 and 2, to be one embodiment of the present of invention can dam nozzle, including mounting flange there is provided one kind
1st, base 2, retainer ring 3 and promotion cylinder, the promotion cylinder include cylinder body 4, expansion link 5 and rod set 6.The cylinder body 4 is installed
In on base 2, base 2 is arranged on the outlet port of injection material storage tube 200 by mounting flange 1.Rod set 6 is set in expansion link 5
Outer peripheral edge on, cylinder body 4 work when promote expansion link 5 do telescopic movable relative to rod set 6.
The first flow 21 circulated for injected plastics material is offered in base 2；Offered in expansion link 5 for injected plastics material circulation
Second flow channel 51, the entrance of second flow channel 51 is located at expansion link 5 on the outer peripheral edge of one end of first flow 21, second
The outlet in road 51 is located at the one end of expansion link 5 away from first flow 21.Fig. 2 is referred to, when expansion link 5 is stretched away from the direction of base 2
When going out, the entrance of second flow channel 51 abuts the inwall of rod set 6, and inwall cuts the passage between second flow channel 51 and first flow 21
It is disconnected；Fig. 1 is referred to, when expansion link 5 is retracted to the direction of base 2, the entrance of second flow channel 51 leaves the inwall of rod set 6
And connected with the first flow 21.
Above-mentioned promotion cylinder can be pneumatic linear actuator either hydraulic cylinder, and the present embodiment is described in detail by taking pneumatic linear actuator as an example.
Specifically, above-mentioned cylinder body 4 includes from outside to inside outer cylinder body 41, piston 42 and the inner cylinder body 43 of nesting successively.This
The cross section of the outer cylinder body 41 of embodiment, piston 42 and inner cylinder body 43 is annular shape.
Above-mentioned inner cylinder body 43 is fixedly connected with piston 42, and the first inlet channel 411, the second air inlet are offered in outer cylinder body 41
Passage 412 and the space 413 for the activity of piston 42.The one end of piston 42 protrudes out forced section 421, the first inlet channel
411 outlet and the outlet of the second inlet channel 412 are located at the two ends in the space 413 respectively, and the forced section 421 is located at
In the space 413.Ring-type neck 52 is set on the outer peripheral edge of expansion link 5, and the part-structure of the retainer ring 3 is embedded in the ring
In shape neck 52, inner cylinder body 43 leans one end that retainer ring 3 is exported away from the second flow channel 51, also, piston 42 is with fixing
Ring 3 is snapped connection.
When above-mentioned first inlet channel, 411 air inlet, the air-flow of high pressure promotes the forced section 421 of piston 42 to deviate from base 2
Direction is moved, and then, inner cylinder body 43, retainer ring 3 and expansion link 5 are simultaneously away from the motion of the direction of base 2, now, second
The entrance in road 51 abuts the inwall of rod set 6, so that entrance is closed, now injection machine can carry out feed back operation.On the contrary, when the
During two 412 air inlets of inlet channel, the air-flow of high pressure promotes the forced section 421 of piston 42 to be moved to the direction of base 2, and then, inner casing
Body 43, retainer ring 3 and expansion link 5 are moved to the direction of base 2 simultaneously, and now, the entrance of second flow channel 51 leaves rod set 6
Inwall, so that entrance can be connected with first flow 21, now injection machine can carry out injection operation.
The nozzle that dams of the present embodiment improves the coaxial power of expansion link 5, expansion link 5 is maintained at center, enters
And the power that expansion link 5 is acted on the inwall of rod set 6 is uniform, side load can be reduced as far as possible may caused expansion link 5 and rod set 6
Abrasion, so as to avoid the occurrence of the problem of injected plastics material is leaked.Also, the nozzle that can entirely dam can be integrated with pre-assembly,
Before the material storage tube of injection machine being directly installed on when needing to use.
Optimally, Fig. 3 is referred to, above-mentioned second flow channel 51 includes one and projects runner 511 and some convergence runners
512；The entrance 5121 of some convergence runners 512 is respectively distributed on the outer peripheral edge of the expansion link 5, all convergence flows
The outlet in road 512 is gathered into together, and is connected with the injection runner 511.Above-mentioned mounting flange 1 offers runner 11,
The entrance of the runner 11 of the mounting flange 1, outlet are connected with the injection material storage tube 200, first flow 21 respectively.
In order that material can be maintained at room temperature or more, the present invention is provided with cooling pipe.The cooling pipe of the present invention can
Using built-in or external arrangement.Below, illustrated exemplified by the present embodiment is in the way of built-in cooling pipe.
Cooling water channel 12, cooling water channel are offered respectively in the mounting flange 1, base 2 and inner cylinder body 43 of the present embodiment
22 and cooling water channel 431, above-mentioned cooling water channel 12, cooling water channel 22 and cooling water channel 431 are collectively formed for cooling down note
The cooling water channel of moulding material.
Position on the outer peripheral edge of expansion link 5 positioned at the entrance side of second flow channel 51 is additionally provided with taper surface 53, described
The taper surface 61 matched with the taper surface 53 of expansion link 5 is also equipped with the inwall of rod set 6.When the second flow channel of expansion link 5
When 51 entrance is closed, taper surface 53 is also closed with taper surface 61 to be closed, it is therefore prevented that material flow forward.
Expansion link 5 is tapered close to the end 54 of first flow 21, so as to limit the flow direction of material, make material to
Second flow channel Way in flows, and is easy to material quickly to enter in second flow channel 51.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
- The nozzle 1. one kind can dam, it is characterised in that including base and promotion cylinder, the promotion cylinder includes cylinder body, expansion link And rod set, the cylinder body is installed on the base, and the rod set is set on the outer peripheral edge of the expansion link, the cylinder body The expansion link is promoted to do telescopic movable relative to the rod set during work；Offer what is circulated for injected plastics material in the base First flow；The second flow channel circulated for injected plastics material is offered in the expansion link, the entrance of the second flow channel is located at institute Expansion link is stated on the outer peripheral edge of one end of first flow, the outlet of the second flow channel is located at the expansion link away from first One end of runner；When the expansion link stretches out away from the base direction, the entrance of the second flow channel abuts the rod set Inwall, the inwall of the rod set blocks the passage between second flow channel and first flow；When the expansion link is to the bottom When seat direction is retracted, the entrance of the second flow channel leaves the rod set inwall and connected with the first flow.
- 2. can dam nozzle as claimed in claim 1, it is characterised in that the cylinder body includes nested outer successively from outside to inside Cylinder body, piston and inner cylinder body, the inner cylinder body are fixedly connected with the piston, offered in the outer cylinder body the first inlet channel, Second inlet channel and the space for piston activity, the one end of the piston protrude out forced section, and described first enters The outlet of gas passage and the outlet of the second inlet channel are located at the two ends in the space respectively, and the force part is in the sky In.
- 3. can dam nozzle as claimed in claim 2, it is characterised in that the outer cylinder body, piston and inner cylinder body it is transversal Face is annular shape.
- 4. can dam nozzle as claimed in claim 2, it is characterised in that the nozzle that dams also includes retainer ring, described Ring-type neck is set on the outer peripheral edge of expansion link, and the part-structure of the retainer ring is embedded in the ring-type neck, the inner casing Body leans one end that the retainer ring is exported away from the second flow channel, also, the piston is snapped connection with the retainer ring.
- 5. can dam nozzle as claimed in claim 4, it is characterised in that the retainer ring includes the flange of two splits, institute State the removable connection of two flanges.
- 6. the nozzle that dams as described in any one in claim 1 to 5, it is characterised in that the second flow channel includes one Bar projects runner and some convergence runners；The entrance of some convergence runners is respectively distributed in the outer of the expansion link On periphery, the outlet of all convergence runners is gathered into together, and is connected with the injection runner.
- 7. the nozzle that dams as described in any one in claim 1 to 5, it is characterised in that the nozzle that dams also is wrapped Mounting flange is included, the base is arranged on the outlet port of injection material storage tube by the mounting flange, and the mounting flange is opened Provided with runner, the entrance of the runner of the mounting flange, outlet are connected with the injection material storage tube, first flow respectively.
- 8. can dam nozzle as claimed in claim 7, it is characterised in that in the mounting flange, base and inner cylinder body Cooling water channel is offered, the cooling water channel of the mounting flange, base and inner cylinder body is collectively formed for cooling down injected plastics material Cooling water channel.
- 9. the nozzle that dams as described in any one in claim 1 to 5, it is characterised in that on the expansion link outer peripheral edge The cone being also equipped with taper surface, the inwall of the rod set with expansion link is additionally provided with positioned at the position of second flow channel entrance side The taper surface that shape face matches.
- 10. the nozzle that dams as described in any one in claim 1 to 5, it is characterised in that the expansion link is close to first The end of runner is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222864.1A CN107042610A (en) | 2017-04-07 | 2017-04-07 | Can be dammed nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710222864.1A CN107042610A (en) | 2017-04-07 | 2017-04-07 | Can be dammed nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107042610A true CN107042610A (en) | 2017-08-15 |
Family
ID=59545321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710222864.1A Pending CN107042610A (en) | 2017-04-07 | 2017-04-07 | Can be dammed nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107042610A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2309561A1 (en) * | 1972-03-01 | 1973-09-06 | Leflaive Vincent Rene | INJECTION DEVICE |
| JPH1044191A (en) * | 1996-08-08 | 1998-02-17 | Nissei Plastics Ind Co | Shut-off nozzle of injection device |
| CN1533323A (en) * | 2001-07-28 | 2004-09-29 | ̩ | Injection unit with device for mixing and dosing plastic melt and additives |
| CN2647551Y (en) * | 2003-07-17 | 2004-10-13 | 上海克朗宁技术设备有限公司 | Hot runner pneumatic needle valve type single-nozzle cylinder for injection moulding |
| CN1853901A (en) * | 2005-04-25 | 2006-11-01 | 苏舍化学技术有限公司 | Apparatus having a nozzle with a needle valve for an injection molding machine |
| CN201120698Y (en) * | 2007-10-18 | 2008-09-24 | 尔信机械(江门)有限公司 | Self-locking nozzle sealing mechanism for ejection shaping apparatus injection nozzle |
| WO2012096547A2 (en) * | 2011-01-16 | 2012-07-19 | Kim Hyuk Joong | Hot runner valve apparatus for an injection-molding machine |
| CN203805265U (en) * | 2013-12-27 | 2014-09-03 | 中国计量学院 | Non-return quantitative constant-pressure injector |
| CN106182602A (en) * | 2016-06-24 | 2016-12-07 | 宁波海特森精密机械制造有限公司 | A kind of injection machine shut-off nozzles |
-
2017
- 2017-04-07 CN CN201710222864.1A patent/CN107042610A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2309561A1 (en) * | 1972-03-01 | 1973-09-06 | Leflaive Vincent Rene | INJECTION DEVICE |
| JPH1044191A (en) * | 1996-08-08 | 1998-02-17 | Nissei Plastics Ind Co | Shut-off nozzle of injection device |
| CN1533323A (en) * | 2001-07-28 | 2004-09-29 | ̩ | Injection unit with device for mixing and dosing plastic melt and additives |
| CN2647551Y (en) * | 2003-07-17 | 2004-10-13 | 上海克朗宁技术设备有限公司 | Hot runner pneumatic needle valve type single-nozzle cylinder for injection moulding |
| CN1853901A (en) * | 2005-04-25 | 2006-11-01 | 苏舍化学技术有限公司 | Apparatus having a nozzle with a needle valve for an injection molding machine |
| CN201120698Y (en) * | 2007-10-18 | 2008-09-24 | 尔信机械(江门)有限公司 | Self-locking nozzle sealing mechanism for ejection shaping apparatus injection nozzle |
| WO2012096547A2 (en) * | 2011-01-16 | 2012-07-19 | Kim Hyuk Joong | Hot runner valve apparatus for an injection-molding machine |
| CN203805265U (en) * | 2013-12-27 | 2014-09-03 | 中国计量学院 | Non-return quantitative constant-pressure injector |
| CN106182602A (en) * | 2016-06-24 | 2016-12-07 | 宁波海特森精密机械制造有限公司 | A kind of injection machine shut-off nozzles |
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