CN109228148B - Quick-closure liquid pneumatic nozzle - Google Patents
Quick-closure liquid pneumatic nozzle Download PDFInfo
- Publication number
- CN109228148B CN109228148B CN201811230554.5A CN201811230554A CN109228148B CN 109228148 B CN109228148 B CN 109228148B CN 201811230554 A CN201811230554 A CN 201811230554A CN 109228148 B CN109228148 B CN 109228148B
- Authority
- CN
- China
- Prior art keywords
- channel
- glue
- valve needle
- sizing material
- control end
- 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.)
- Active
Links
Images
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
Abstract
The invention discloses a quick-closure liquid pneumatic nozzle which comprises a nozzle body, wherein a sizing material channel and a valve needle are arranged in the nozzle body, a sizing material outlet is formed in the front end of the sizing material channel, and a sizing material inlet is formed in the rear end of the sizing material channel; the front end of the valve needle is provided with a first glue sealing part which seals the glue outlet when the valve needle moves to the glue outlet along the glue channel; and arranging a second glue sealing part in the glue material channel, wherein the second glue sealing part comprises a glue sealing surface, and the glue sealing surface blocks the glue material outlet in the first glue sealing part and cuts off the glue material channel. The invention has simple structure, changes the traditional design idea, provides a new effective nozzle for the injection of sizing material, and is effective and stable in the using process; and the synchronous double-sealing adhesive contact surface is adopted, so that double insurance avoids adhesive leakage, and the requirement of high-speed and high-pressure adhesive material ejection is met.
Description
Technical Field
The invention relates to a die device for injection molding, in particular to a quick liquid-intercepting pneumatic nozzle.
Background
Along with the continuous rise of the automobile industry market, in addition to the annual increase of the demand of plastic products in the current electric appliance market and daily life, production equipment (injection molding equipment) of the plastic products is continuously promoted every year, but the demand of the market for various plastic products can not be met, especially, the LSR injection molding products are short of demand, along with the continuous increase of the equipment, the productivity is not clearly embodied, and the main reason of the phenomenon is generated: at present, the core structural part (closure nozzle) of the existing injection molding equipment is still of a traditional structure, and under the condition of improving the speed and the pressure, glue leakage and a large number of defective products can be caused, so that the existing injection molding equipment belongs to low-pressure and low-speed production. In addition, the valve needle is positioned in the runner and reciprocates in the runner to open and close the sprue, and the valve needle is in reciprocating contact with the molten resin in the runner for a long time, so that the surface of the valve needle is easy to wear, and the sealing effect is easy to cause poor.
Disclosure of Invention
The invention aims to provide a novel and improved intercepting nozzle which is high in glue sealing speed and high in moving sensitivity of a glue sealing needle and can completely meet the high-speed and high-pressure production mode.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the quick-closure liquid pneumatic nozzle comprises a nozzle body, wherein a sizing material channel and a valve needle are arranged in the nozzle body, a sizing material outlet is formed in the front end of the sizing material channel, and a sizing material inlet is formed in the rear end of the sizing material channel; the front end of the valve needle is provided with a first glue sealing part which seals the glue outlet when the valve needle moves to the glue outlet along the glue channel; and arranging a second glue sealing part in the glue material channel, wherein the second glue sealing part comprises a glue sealing surface, and the glue sealing surface blocks the glue material outlet in the first glue sealing part and cuts off the glue material channel.
Further, the valve needle comprises a control end, and a first limiting table and a second limiting table are arranged on the control end; a control end accommodating cavity is arranged in the nozzle body, and a sealing gasket is arranged at the position where the valve needle extends out of the control end accommodating cavity; the first limiting table and the control end accommodating cavity form a first control cavity, and the second limiting table and the control end accommodating cavity form a second control cavity; the first hole is communicated with the first control cavity; the second holes are respectively communicated with the second control cavities.
Further, the valve needle is sleeved with a spring, and the spring is installed in the second control cavity and elastically deforms or restores elastically deforming along with the movement of the valve needle.
Furthermore, the nozzle body comprises a nozzle body, a connecting body and a nozzle body; the sizing material channel comprises a first channel, a second channel and a third channel; a first channel is arranged in the nozzle body; a third channel is arranged in the shooting seat body; the control end accommodating cavity is arranged in the connecting body, and two ends of the control end accommodating cavity are respectively communicated with the first channel and the third channel through openings; and a second channel with two ends not blocked is formed in the control end of the valve needle, the valve needle is arranged in the control end accommodating cavity, the rear end of the valve needle extends into the third glue material channel to enable the second channel to be always communicated with the third channel, and the front end of the valve needle extends into the first channel to be selectively communicated with the first channel through a second glue sealing part.
Furthermore, the second glue sealing portion comprises a transition cavity arranged on the first channel, the diameter of the transition cavity is larger than the inner diameter of the first channel, and the connecting surface of the transition cavity and the first channel is a glue sealing surface.
Furthermore, at least one sizing material outlet of the second channel is arranged, and the plurality of sizing material outlets are arranged at equal intervals.
Furthermore, the first glue sealing part is a conical body.
Furthermore, the glue sealing surface is an inclined surface.
The invention has the technical effects that:
(1) the synchronous double-sealing part is adopted, double insurance is provided, the stability of sealing is ensured, and glue leakage is avoided; the high-speed high-pressure glue injection is met;
(2) in addition, the valve needle is controlled to move pneumatically (or hydraulically), so that the valve is quicker and more reliable;
(3) the valve needle is provided with the spring device, the rebound phenomenon of the glue sealing needle is prevented in a limited way, and the spring automatically resists glue sealing under the condition of unstable air pressure, so that the production state of high speed and high pressure is met, and the advantages of high efficiency and low consumption are fully embodied;
(4) the inner flowing trend of the sizing material is changed by matching with the double-sealing glue, the walking path of the sizing material is reduced, and the sealing glue surface of the second sealing glue part is arranged on the nozzle body, so that the sealing glue effect is effectively improved.
In conclusion, the invention has simple structure, changes the traditional design thought, provides a new effective nozzle for the injection of sizing material, and is effective and stable in the using process; and the synchronous double-sealing adhesive contact surface is adopted, so that double insurance avoids adhesive leakage, and the requirement of high-speed and high-pressure adhesive material ejection is met.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic view of a prior art nozzle;
FIG. 2 is a schematic diagram of the general structure of the present invention;
FIG. 3 is an exploded view of FIG. 1;
FIG. 4 is a schematic view of the nozzle of FIG. 1 shown unopened;
FIG. 5 is a schematic view of the nozzle of FIG. 1 shown open;
wherein the figures include the following reference numerals:
the nozzle comprises a nozzle body 100, a control end accommodating cavity 110, a sealing gasket 120, a first control cavity 130, a second control cavity 140, a first hole 150, a second hole 160, a nozzle body 170, a connecting body 180 and a nozzle body 190;
a glue passage 200, a glue outlet 210, a glue inlet 220, a first passage 230, a second passage 240, a third passage 250; valve needle 300, control end 310, first stop 311, second stop 312, spring 320;
the first glue sealing part 400, the second glue sealing part 500, the glue sealing surface 510 and the transition cavity 520; a gasket 600.
Detailed Description
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided only for the purpose of illustrating the present invention and are not to be construed as unduly limiting the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The quick-closure liquid pneumatic nozzle comprises a nozzle body, wherein a sizing material channel and a valve needle are arranged in the nozzle body, a sizing material outlet is formed in the front end of the sizing material channel, and a sizing material inlet is formed in the rear end of the sizing material channel; the front end of the valve needle is provided with a first glue sealing part which seals the glue outlet when the valve needle moves to the glue outlet along the glue channel; and arranging a second glue sealing part in the glue material channel, wherein the second glue sealing part comprises a glue sealing surface, and the glue sealing surface blocks the glue material outlet in the first glue sealing part and cuts off the glue material channel.
In the invention, double sealing glue is adopted to cut off the glue material channel, thereby effectively ensuring the sealing glue effect.
The second glue sealing part is determined according to the arrangement of the glue material channel, and can be arranged on the nozzle body or the needle valve; when the glue material channel is arranged on the nozzle body, the second glue sealing part is arranged on the needle valve; when the sizing material passageway sets up on the needle valve, the second seals the setting of glue portion and spouts the mouth body on, through a quiet one move the mutual cooperation accomplish the sizing material passageway cut off or unobstructed.
The invention adopts pneumatic control, thus a control cavity is formed by arranging two limiting tables and an accommodating space in the nozzle body, and the movement of the valve needle is controlled by controlling the on-off of the air passage through two through holes. The specific structure is as follows: the valve needle comprises a control end, and a first limiting table and a second limiting table are arranged on the control end; a control end accommodating cavity is arranged in the nozzle body, and a sealing gasket is arranged at the position where the valve needle extends out of the control end accommodating cavity; the first limiting table and the control end accommodating cavity form a first control cavity, and the second limiting table and the control end accommodating cavity form a second control cavity; the first hole is communicated with the first control cavity; the second holes are respectively communicated with the second control cavities. Each control cavity adopts dynamic seal, and the control stability is effectively ensured.
In addition, in order to prevent the situation that the air pressure is unstable, the sealing speed is slow; and also prevent to seal the glue needle and bounce seriously under the condition that the big pressure jets out the sizing material, influence and seal the glue effect, cover the spring on the needle, the spring is installed in second control intracavity, takes place elastic deformation or reply elastic deformation along with the needle removes.
Through the arrangement of the spring, when the air pressure is unstable or the pressure is suddenly increased, the buffer can be generated during the glue sealing, so that the glue sealing is stable and rapid.
The specific structure that the glue sealing surface is arranged on the nozzle body is provided, the structure changes the condition that a glue material channel is arranged on the nozzle body in the prior art, the idea of the trend of another glue material is provided, and more effective and faster glue sealing can be realized. The specific structure is as follows:
the nozzle body comprises a nozzle body, a connecting body and a nozzle body; the sizing material channel comprises a first channel, a second channel and a third channel; a first channel is arranged in the nozzle body; a third channel is arranged in the shooting seat body; the control end accommodating cavity is arranged in the connecting body, and two ends of the control end accommodating cavity are respectively communicated with the first channel and the third channel through openings; and a second channel with two ends not blocked is formed in the control end of the valve needle, the valve needle is arranged in the control end accommodating cavity, the rear end of the valve needle extends into the third glue material channel to enable the second channel to be always communicated with the third channel, and the front end of the valve needle extends into the first channel to be selectively communicated with the first channel through a second glue sealing part. The second glue sealing part comprises a transition cavity arranged on the first channel, the diameter of the transition cavity is larger than the inner diameter of the first channel, and the connecting surface of the transition cavity and the first channel is a glue sealing surface.
Furthermore, at least one sizing material outlet of the second channel is arranged, and the plurality of sizing material outlets are arranged at equal intervals. Generally speaking, the symmetrically arranged glue outlets can enable the valve needle to be stressed uniformly during glue sealing, and the glue sealing effect is stable and reliable.
The first sealing portion and the second sealing portion are both tapered slopes, so that sealing is more and more compact and reliable. Therefore, the first glue sealing part is a conical body. The glue sealing surface is an inclined surface.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The quick-closure liquid pneumatic nozzle comprises a nozzle body, wherein a sizing material channel and a valve needle are arranged in the nozzle body, a sizing material outlet is formed in the front end of the sizing material channel, and a sizing material inlet is formed in the rear end of the sizing material channel; the front end of the valve needle is provided with a first glue sealing part which seals the glue outlet when the valve needle moves to the glue outlet along the glue channel; the method is characterized in that: arranging a second glue sealing part in the glue material channel, wherein the second glue sealing part comprises a glue sealing surface, and the glue sealing surface blocks the glue material outlet in the first glue sealing part and cuts off the glue material channel; the sizing material channel comprises a first channel, a second channel and a third channel; the valve needle is arranged in the control end of the valve needle, a second channel with two ends not blocked is formed in the control end of the valve needle, the valve needle is arranged in the control end accommodating cavity, the rear end of the valve needle extends into the third sizing material channel to enable the second channel to be communicated with the third channel all the time, the front end of the valve needle extends into the first channel to be selectively communicated with the first channel through a second glue sealing part, the glue sealing surface is an inclined surface, the second glue sealing part comprises a transition cavity arranged on the first channel, the diameter of the transition cavity is larger than the inner diameter of the first channel, and the connecting surface of the transition cavity and the first channel is a glue sealing surface.
2. The rapid liquid state pneumatic shutoff nozzle according to claim 1, wherein the valve needle includes a control end, and a first limit stop and a second limit stop are disposed on the control end; a control end accommodating cavity is arranged in the nozzle body, and a sealing gasket is arranged at the position where the valve needle extends out of the control end accommodating cavity; the first limiting table and the control end accommodating cavity form a first control cavity, and the first hole and the first control cavity are communicated with the second limiting table and the control end accommodating cavity to form a second control cavity; the second holes are respectively communicated with the second control cavities.
3. The rapid liquid state pneumatic shutoff nozzle according to claim 2, wherein the valve needle is sleeved with a spring, and the spring is mounted in the second control chamber and elastically deforms or returns to elastically deform along with the movement of the valve needle.
4. The rapid shut-off liquid pneumatic nozzle according to claim 1 or 3, wherein the nozzle body comprises a nozzle body, a connecting body, a nozzle body; a first channel is arranged in the nozzle body; a third channel is arranged in the shooting seat body; the control end holds the chamber and sets up in the connector, and the both ends that the control end held the chamber are the opening respectively and are communicated with first passageway, third passageway.
5. The fast-intercepting liquid pneumatic nozzle according to claim 4, wherein at least one glue outlet of the second channel is provided, and a plurality of glue outlets are provided at equal intervals.
6. The quick shut-off liquid pneumatic nozzle of claim 1 or 5, wherein the first sealant portion is a cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811230554.5A CN109228148B (en) | 2018-10-22 | 2018-10-22 | Quick-closure liquid pneumatic nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811230554.5A CN109228148B (en) | 2018-10-22 | 2018-10-22 | Quick-closure liquid pneumatic nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109228148A CN109228148A (en) | 2019-01-18 |
| CN109228148B true CN109228148B (en) | 2021-05-18 |
Family
ID=65081172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811230554.5A Active CN109228148B (en) | 2018-10-22 | 2018-10-22 | Quick-closure liquid pneumatic nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109228148B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651213A (en) * | 2004-02-05 | 2005-08-10 | 日本韮沙株式会社 | Valve nozzle |
| CN102481715A (en) * | 2009-07-17 | 2012-05-30 | 弗朗霍弗应用研究促进协会 | Device For Producing Plastic Molded Parts And The Use Thereof |
| CN102476426A (en) * | 2010-11-25 | 2012-05-30 | 区磋记 | Zero-pressure-holding anti-leakage plastic nozzle |
| CN206983131U (en) * | 2017-07-31 | 2018-02-09 | 宁波威瑞精密机械有限公司 | A kind of self-locking nozzle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2449907C (en) * | 2002-11-21 | 2012-01-03 | Mold-Masters Limited | In-line valve gated nozzle |
| US7470122B2 (en) * | 2003-02-25 | 2008-12-30 | Mold-Masters (2007) Limited | Apparatus for removing melt from a melt residue stagnation zone in an injection molding apparatus |
| CN202540612U (en) * | 2012-04-16 | 2012-11-21 | 东莞泰星五金制品厂有限公司 | Leakproof injection nozzle structure |
| CN106584769B (en) * | 2016-11-03 | 2019-10-11 | 广州天沅硅胶机械科技有限公司 | A kind of precision injecting glue nozzle |
| CN207224457U (en) * | 2017-05-22 | 2018-04-13 | 东莞市精纯模具塑胶有限公司 | A kind of pneumatic injection nozzle structure of injection molding machine |
-
2018
- 2018-10-22 CN CN201811230554.5A patent/CN109228148B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651213A (en) * | 2004-02-05 | 2005-08-10 | 日本韮沙株式会社 | Valve nozzle |
| CN102481715A (en) * | 2009-07-17 | 2012-05-30 | 弗朗霍弗应用研究促进协会 | Device For Producing Plastic Molded Parts And The Use Thereof |
| CN102476426A (en) * | 2010-11-25 | 2012-05-30 | 区磋记 | Zero-pressure-holding anti-leakage plastic nozzle |
| CN206983131U (en) * | 2017-07-31 | 2018-02-09 | 宁波威瑞精密机械有限公司 | A kind of self-locking nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109228148A (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109228148B (en) | Quick-closure liquid pneumatic nozzle | |
| CN102537439B (en) | Pressure reducing valve structure and method for adjusting gas pressure | |
| CN207535229U (en) | A kind of needle-valve hot-runner device | |
| CN203413191U (en) | Self-adapted switching valve | |
| CN102345743A (en) | Self-locking double stop valve | |
| CN201482677U (en) | Precise metering valve | |
| CN102476426A (en) | Zero-pressure-holding anti-leakage plastic nozzle | |
| CN204966188U (en) | A tip sealing mould for preparation of composite insulator full skirt | |
| CN202283774U (en) | Special threaded rod check valve for polypropylene of injection molding machine | |
| CN107953699A (en) | A kind of pen for being capable of jet ink | |
| CN101368641B (en) | Unloading type liquid-control hydraulic break valve and its opening method | |
| CN103737790A (en) | Gas-assisted molding device | |
| CN208529591U (en) | The anti-saliva nozzle of needle valve | |
| CN202469097U (en) | Pressure reducing structure for adjusting gas pressure, | |
| CN203670817U (en) | Flow limiting valve for glue gun and with no erosion on sealing face | |
| CN220850959U (en) | Movable iron core for vacuum electromagnetic valve | |
| CN204239118U (en) | A kind of control valve couple of valve core sealed cover band annular ring recess | |
| CN207273713U (en) | A kind of shut-off nozzles of injection molding machine | |
| CN213235300U (en) | Valve seat limit sealing electromagnetic valve type injector | |
| CN205118260U (en) | Trip valve of silica gel institutional advancement for pipeline | |
| CN202685199U (en) | Injection molding nozzle of injection molding machine | |
| CN212975558U (en) | High-pressure gun with replaceable valve block | |
| CN219407108U (en) | Filling needle nozzle of return valve | |
| CN217634051U (en) | Fluid-controlled ultrahigh-pressure one-way valve | |
| CN201588957U (en) | Knife gate plate sealing device of knife gate valve |
Legal Events
| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |