CN103742658A - Non-erosive flow-limiting valve used for sealing surface of glue gun - Google Patents
Non-erosive flow-limiting valve used for sealing surface of glue gun Download PDFInfo
- Publication number
- CN103742658A CN103742658A CN201410023925.8A CN201410023925A CN103742658A CN 103742658 A CN103742658 A CN 103742658A CN 201410023925 A CN201410023925 A CN 201410023925A CN 103742658 A CN103742658 A CN 103742658A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- spool
- flow
- valve
- sealing surface
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 57
- 239000003292 glue Substances 0.000 title claims abstract description 49
- 230000003628 erosive effect Effects 0.000 claims abstract description 29
- 239000000872 buffer Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000003139 buffering effect Effects 0.000 description 3
- 239000006173 Good's buffer Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a non-erosive flow-limiting valve used for sealing surface of a glue gun. The non-erosive flow-limiting valve comprises a valve seat and a valve element arranged in the valve seat and capable of moving back and force along the axis direction of the valve seat. The outer diameter of the valve element is smaller than the inner diameter of the valve seat and matches with the inner side wall on the inner portion of the valve seat to form a flow limiting tunnel to buffer the glue liquid. The non-erosive flow-limiting valve used for sealing surface of glue gun can limit and buffer high pressure glue liquid on the middle portion of the inner side via the flow limiting tunnel, can effectively prevent high pressure glue liquid from eroding the sealing surface of the valve directly during dispensing process, has good flow limiting function, can effectively prolong service life of the valve, and is simple in structure and convenient to process.
Description
Technical field
The present invention relates to a kind of accessory of automatic double surface gluer, relate in particular to a kind of sealing surface for coating gun without the flow-limiting valve of erosion.
Background technique
Coating gun is a kind of under pressure by glue spraying or be expelled to adherend surface a kind of apparatus used, coating gun plastic emitting of the prior art, only glue is controlled by valve, enters Jiao Kou open, close and realize coating gun plastic emitting, stop glue by spool and the valve seat that manually makes coating gun.When needs carry out gluing operation, make valve core movement, thereby open valve, after valve open, the glue of high pressure flow into the nozzle of coating gun by valve.Valve of the prior art is (being plastic emitting) in the course of the work, and the glue of high pressure, to the direct erosion of the sealing surface of the valve seat of valve and spool, has been accelerated the wearing and tearing of valve, and the life-span of valve is shortened greatly.
Therefore, need to propose a kind of novel valve for coating gun, can effectively prevent from directly the sealing surface of valve being carried out to erosion at plastic emitting process mesohigh glue, can also play good metering function, effectively extend the working life of valve, and simple in structure, easy to process.
Summary of the invention
In view of this, the object of this invention is to provide a kind of sealing surface for coating gun without the flow-limiting valve of erosion, can effectively prevent from directly the sealing surface of valve being carried out to erosion at plastic emitting process mesohigh glue, can also play good metering function, effectively extend the working life of valve, and simple in structure, easy to process.
A kind of sealing surface for coating gun provided by the invention is without the flow-limiting valve of erosion, comprise that valve seat and the spool and the described spool that are arranged in described valve seat can be along the axially reciprocatings of valve seat, described spool external diameter is less than the internal diameter of described valve seat and coordinates with the middle part madial wall of described valve seat and forms the restricted flow passage that glue is cushioned.
Further, middle part madial wall and the spool of described valve seat are cone structure, and the conical surface of described valve seat and the cone match of spool form restricted flow passage.
Further, the middle part madial wall of described valve seat is that internal diameter flows to the cone structure reducing gradually along glue, and described spool is that external diameter flows to the cone structure reducing gradually along glue.
Further, the inner side front end of described valve seat is provided with buffer cavity.
Further, the anterior madial wall that described buffer cavity is valve seat coordinates formation with described spool.
Further, the front end of described spool is fixedly installed the Sealing of spheroidal structure, described Sealing and valve seat crush seal.
Further, described Sealing is arranged at described spool along the axial embedding of the front end end face from spool of described spool.
Further, the outlet end of described valve seat inner side is fixedly installed sealing seat, and the outlet of described sealing seat and valve seat is coaxially arranged with liquid flow hole, and meeting to the port chamfering of spool one end of described liquid flow hole forms and the conformal globoidal structure coordinating of described Sealing.
Beneficial effect of the present invention: the sealing surface for coating gun of the present invention is without the flow-limiting valve of erosion, pass through restricted flow passage, make high pressure glue carry out current limliting buffering in the middle inside of valve seat, can effectively prevent from directly the sealing surface of valve being carried out to erosion at plastic emitting process mesohigh glue, can also play good metering function, effectively extend the working life of valve, and simple in structure, easy to process.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention.
Embodiment
Fig. 1 is structural representation of the present invention, as shown in the figure, a kind of sealing surface for coating gun provided by the invention is without the flow-limiting valve of erosion, comprise that valve seat 2 and the spool 3 and the described spool 3 that are arranged in described valve seat 2 can be along the axially reciprocatings of valve seat 2, the to-and-fro motion of described spool 3 is because valve rod 7 transferring power that spool 3 is coaxially fixedly installed drive, described spool 3 external diameters are less than the internal diameter of described valve seat 2 and coordinate with the middle part madial wall of described valve seat 2 and form the restricted flow passage 4 that glue is cushioned, sealing surface for coating gun of the present invention is without the flow-limiting valve of erosion, pass through restricted flow passage, make high pressure glue carry out current limliting buffering in the middle inside of valve seat, can effectively prevent from directly the sealing surface of valve being carried out to erosion at plastic emitting process mesohigh glue, can also play good metering function, effectively extend the working life of valve, and simple in structure, easy to process.
In the present embodiment, middle part madial wall and the spool 3 of described valve seat 2 are cone structure, the cone match of the conical surface of described valve seat 2 and spool 3 forms restricted flow passage 4, the middle part madial wall of described valve seat 2 is that internal diameter flows to the cone structure reducing gradually along glue, the cone structure that described spool 3 reduces along the glue flow direction gradually for external diameter, the internal diameter at described valve seat 2 rear portions is maximum and is straight-tube shape, when spool moves and (opens described current limliting without erosion valve in the opposite direction to glue stream, glue flow to for the A in Fig. 1 to), the Sealing of described spool is separated with sealing seat, glue flows out from the outlet of valve seat, first high pressure glue enters into the rear portion of valve seat, and then the middle part and anterior of flowing through, when the middle part of high pressure glue runner valve seat, effect due to restricted flow passage, the flow of high pressure glue is effectively limited, preventing that instant glue flow quantity that coating gun opens is excessive carries out erosion to sealing surface, what is more important, because the junction of glue from high pressure to low pressure is the place that is subject to erosion the most serious, when high pressure glue enters into valve seat middle part, high pressure glue can directly act on the conical surface of middle part madial wall of described valve seat, can play good buffer function to high pressure glue, make high pressure glue at the middle part of valve seat just from high pressure to low pressure transition, make the high low pressure junction of glue transfer to the middle part of valve seat and make to be subject to the point of erosion to transfer to valve seat itself from traditional sealing surface that acts directly on from sealing surface, sealing surface to valve seat and spool plays a good protection, effectively extend the working life of valve, when spool continues to move in the opposite direction to glue stream, can be so that the flow of glue increases gradually, conveniently glue solution flow is controlled, certainly, the initial flow of glue (being valve open moment) is determined by the external diameter of spool and the internal diameter of valve seat middle inside, and the initial flow that the external diameter of spool and the difference in internal diameters of valve seat middle inside are controlled glue can be set according to different demands.
In the present embodiment, the inner side front end of described valve seat 2 is provided with buffer cavity 6, the anterior madial wall that described buffer cavity 6 is valve seat 2 coordinates formation with described spool 3, because spool is cone structure, thereby the anterior inner side of spool and valve seat is in conjunction with forming the larger buffer cavity (with respect to restricted flow passage) in space, after flowing through restricted flow passage, glue enters into buffer cavity, to the glue release of expanding, high pressure glue is carried out to secondary buffer, by twice buffering of restricted flow passage and buffer cavity, the pressure of glue that makes to flow to the sealing surface of valve seat reduces greatly, further reduced the erosion to sealing surface, extended the working life of valve.
In the present embodiment, the front end of described spool 3 is fixedly installed the Sealing 5 of spheroidal structure, described Sealing 5 and valve seat 2 crush seals, and described Sealing 6 is axially arranged at described spool 3 from the front end end face embedding of spool along described spool 3, structural stability is firm, good airproof performance.
In the present embodiment, the outlet end inner side of described valve seat 2 is fixedly installed sealing seat 7, described sealing seat 7 is coaxially arranged with liquid flow hole 8 with the outlet of valve seat 2, meeting to the port chamfering of spool 3 one end of described liquid flow hole 8 forms and the conformal globoidal structure coordinating of described Sealing 5, described sealing seat 7 and Sealing 5 are existing cemented carbide and make, pass through said structure, make the area of contact (being sealing surface area) of sealing seat and Sealing large, can effectively strengthen the sealability between sealing seat and Sealing.
Fore-and-aft direction of the present invention flow to form according to glue, and outlet one end of valve seat is front, and after the entrance of valve seat is, from Fig. 1, A is to looking, and arrow direction is front.
Finally explanation is, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technological scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (8)
1. the sealing surface for coating gun is without the flow-limiting valve of erosion, comprise that valve seat and the spool and the described spool that are arranged in described valve seat can, along the axially reciprocating of valve seat, is characterized in that: described spool external diameter is less than the internal diameter of described valve seat and coordinates with the middle part madial wall of described valve seat and forms the restricted flow passage that glue is cushioned.
2. the flow-limiting valve without erosion for the sealing surface of coating gun according to claim 1, is characterized in that: middle part madial wall and the spool of described valve seat are cone structure, and the conical surface of described valve seat and the cone match of spool form restricted flow passage.
3. the flow-limiting valve without erosion for the sealing surface of coating gun according to claim 2, it is characterized in that: the middle part madial wall of described valve seat is that internal diameter flows to the cone structure reducing gradually along glue, described spool is that external diameter flows to the cone structure reducing gradually along glue.
4. the flow-limiting valve without erosion for the sealing surface of coating gun according to claim 3, is characterized in that: the inner side front end of described valve seat is provided with buffer cavity.
5. the flow-limiting valve without erosion for the sealing surface of coating gun according to claim 4, is characterized in that: the anterior madial wall that described buffer cavity is valve seat coordinates formation with described spool.
6. the flow-limiting valve without erosion for the sealing surface of coating gun according to claim 5, is characterized in that: the front end of described spool is fixedly installed the Sealing of spheroidal structure described Sealing and valve seat crush seal.
7. the flow-limiting valve without erosion for the sealing surface of coating gun according to claim 6, is characterized in that: described Sealing axially embeds and is arranged at described spool from the front end end face of spool along described spool.
8. the flow-limiting valve without erosion for the sealing surface of coating gun according to claim 7, it is characterized in that: the outlet end inner side of described valve seat is fixedly installed sealing seat, the outlet of described sealing seat and valve seat is coaxially arranged with liquid flow hole, and meeting to the port chamfering of spool one end of described liquid flow hole forms and the conformal globoidal structure coordinating of described Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410023925.8A CN103742658B (en) | 2014-01-20 | 2014-01-20 | Non-erosive flow-limiting valve used for sealing surface of glue gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410023925.8A CN103742658B (en) | 2014-01-20 | 2014-01-20 | Non-erosive flow-limiting valve used for sealing surface of glue gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103742658A true CN103742658A (en) | 2014-04-23 |
| CN103742658B CN103742658B (en) | 2017-02-15 |
Family
ID=50499708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410023925.8A Active CN103742658B (en) | 2014-01-20 | 2014-01-20 | Non-erosive flow-limiting valve used for sealing surface of glue gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103742658B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110413A (en) * | 2014-06-19 | 2014-10-22 | 广东华液动力科技有限公司 | Valve pair structure |
| CN105927530A (en) * | 2016-06-24 | 2016-09-07 | 无锡海升高压泵有限公司 | Flow-limiting valve seat of high-pressure pump |
| CN110678679A (en) * | 2017-03-23 | 2020-01-10 | 法雷奥电机控制系统公司 | Valve for regulating fluid flow |
| TWI706924B (en) * | 2015-03-17 | 2020-10-11 | 日商Ｈｏｙａ股份有限公司 | Optical glass and optical components |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201235322Y (en) * | 2008-08-05 | 2009-05-13 | 厦门顶科电子有限公司 | Diaphragm type glue dropping valve |
| CN201552079U (en) * | 2009-10-23 | 2010-08-18 | 薛金龙 | Jet glue dropping valve |
| EP2589437A2 (en) * | 2011-11-01 | 2013-05-08 | Focke & Co. (GmbH & Co. KG) | Method for detecting failures and for recording the valve stroke of a glue valve |
| CN103277552A (en) * | 2013-05-31 | 2013-09-04 | 陈相源 | Flow-limiting valve |
| CN203670817U (en) * | 2014-01-20 | 2014-06-25 | 重庆长江涂装设备有限责任公司 | Flow limiting valve for glue gun and with no erosion on sealing face |
-
2014
- 2014-01-20 CN CN201410023925.8A patent/CN103742658B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201235322Y (en) * | 2008-08-05 | 2009-05-13 | 厦门顶科电子有限公司 | Diaphragm type glue dropping valve |
| CN201552079U (en) * | 2009-10-23 | 2010-08-18 | 薛金龙 | Jet glue dropping valve |
| EP2589437A2 (en) * | 2011-11-01 | 2013-05-08 | Focke & Co. (GmbH & Co. KG) | Method for detecting failures and for recording the valve stroke of a glue valve |
| CN103277552A (en) * | 2013-05-31 | 2013-09-04 | 陈相源 | Flow-limiting valve |
| CN203670817U (en) * | 2014-01-20 | 2014-06-25 | 重庆长江涂装设备有限责任公司 | Flow limiting valve for glue gun and with no erosion on sealing face |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110413A (en) * | 2014-06-19 | 2014-10-22 | 广东华液动力科技有限公司 | Valve pair structure |
| CN104110413B (en) * | 2014-06-19 | 2016-08-17 | 广东华液动力科技有限公司 | A kind of valve auxiliary structure |
| TWI706924B (en) * | 2015-03-17 | 2020-10-11 | 日商Ｈｏｙａ股份有限公司 | Optical glass and optical components |
| CN105927530A (en) * | 2016-06-24 | 2016-09-07 | 无锡海升高压泵有限公司 | Flow-limiting valve seat of high-pressure pump |
| CN110678679A (en) * | 2017-03-23 | 2020-01-10 | 法雷奥电机控制系统公司 | Valve for regulating fluid flow |
| CN110678679B (en) * | 2017-03-23 | 2022-07-26 | 法雷奥电机控制系统公司 | Valve for regulating fluid flow |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103742658B (en) | 2017-02-15 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CP03 | Change of name, title or address |
Address after: No. 123, Tiancheng Avenue, Wanzhou District, Chongqing 404130 Patentee after: China Shipbuilding Group Changjiang Technology Co.,Ltd. Country or region after: China Address before: No. 123, Tiancheng Avenue, Wanzhou District, Chongqing 404130 Patentee before: CHINA SHIPBUILDING INDUSTRY GROUP CHANGJIANG TECHNOLOGY Co.,Ltd. Country or region before: China Address after: No. 123, Tiancheng Avenue, Wanzhou District, Chongqing 404130 Patentee after: CHINA SHIPBUILDING INDUSTRY GROUP CHANGJIANG TECHNOLOGY Co.,Ltd. Country or region after: China Address before: No. 123, Tiancheng Avenue, Wanzhou District, Chongqing 404130 Patentee before: CHONGQING CHANGJIANG COATING EQUIPMENT Co.,Ltd. Country or region before: China |