CN103742658B - 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
- CN103742658B CN103742658B CN201410023925.8A CN201410023925A CN103742658B CN 103742658 B CN103742658 B CN 103742658B CN 201410023925 A CN201410023925 A CN 201410023925A CN 103742658 B CN103742658 B CN 103742658B
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- China
- Prior art keywords
- valve seat
- valve
- valve element
- flow
- 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.)
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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, the limit of more particularly, to a kind of sealing surface for coating gun no erosion
Stream valve.
Background technology
Coating gun be a kind of under pressure by glue spraying or be expelled to a kind of apparatus used by adherend body surface face,
Coating gun plastic emitting of the prior art, only glue pass through Valve controlling, so that the valve element of coating gun and valve seat is entered Jiao Kou and open
Open, close and realize coating gun plastic emitting, only glue.When needing to carry out gluing operation, making valve core movement, thus opening valve, working as valve
After door is opened, the glue of high pressure is flowed into the nozzle of coating gun by valve.Valve of the prior art is in the course of the work（I.e.
Plastic emitting）, the glue of high pressure, to the valve seat of valve and the direct erosion of the sealing surface of valve element, accelerates the abrasion of valve so that valve
Life-span greatly shorten.
It is, therefore, desirable to provide a kind of new valve for coating gun, can effectively prevent in plastic emitting process mesohigh
Glue directly carries out erosion additionally it is possible to play good metering function to the sealing surface of valve, effectively extends the use longevity of valve
Life, and structure is simple, easy to process.
Content of the invention
In view of this, it is an object of the invention to provide a kind of flow-limiting valve of sealing surface for coating gun no erosion, can
Effectively prevent high pressure glue during plastic emitting from directly carrying out erosion to the sealing surface of valve and make additionally it is possible to play good current limliting
With, effectively extend the service life of valve, and structure is simple, easy to process.
A kind of flow-limiting valve of sealing surface for coating gun no erosion that the present invention provides, includes valve seat and described in being arranged at
Valve element in valve seat and described valve element can be along the axially reciprocatings of valve seat, and described valve element external diameter is less than the internal diameter of described valve seat simultaneously
Cooperatively form the restricted flow passage that glue is entered with row buffering with the inside middle portion wall of described valve seat.
Further, the inside middle portion wall of described valve seat and valve element are cone structure, the conical surface of described valve seat and valve element
Cone match formed restricted flow passage.
Further, the inside middle portion wall of described valve seat is the cone structure that internal diameter is gradually reduced along glue flow direction, described
Valve element is the cone structure that external diameter is gradually reduced along glue flow direction.
Further, the inside front ends of described valve seat are provided with cushion chamber.
Further, described cushion chamber is cooperatively formed with described valve element for the front inner wall of valve seat.
Further, the front end of described valve element is fixedly installed the sealing member of chondritic, and described sealing member is extruded with valve seat
Sealing.
Further, described sealing member is arranged at described valve element along axially embedding from the front end surface of valve element of described valve element.
Further, it is fixedly installed seal receptacle inside the port of export of described valve seat, described seal receptacle is same with the outlet of valve seat
Axle is provided with liquid flow hole, the arc meeting the port chamfering formation to valve element one end and described sealing member form-fit of described liquid flow hole
Face structure.
Beneficial effects of the present invention：The flow-limiting valve of the no erosion of the sealing surface for coating gun of the present invention, is led to by current limliting
Road, makes high pressure glue carry out current limliting buffering in the middle inside of valve seat, can effectively prevent high pressure glue during plastic emitting straight
Connect the sealing surface to valve and carry out erosion additionally it is possible to play good metering function, effectively extend the service life of valve, and
Structure is simple, easy to process.
Brief description
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of the present invention.
Specific embodiment
Fig. 1 is the structural representation of the present invention, as illustrated, a kind of sealing surface for coating gun that the present invention provides is no
The flow-limiting valve of erosion, including valve seat 2, with the valve element 3 being arranged in described valve seat 2 and described valve element 3 can be past along the axial direction of valve seat 2
Multiple motion, moving back and forth of described valve element 3 transmits power drive, described valve element 3 due to the valve rod 7 that valve element 3 is coaxially fixedly installed
External diameter is less than the internal diameter of described valve seat 2 and cooperatively forms, with the inside middle portion wall of described valve seat 2, the current limliting that glue is entered with row buffering
Passage 4, the flow-limiting valve of the no erosion of the sealing surface for coating gun of the present invention, by restricted flow passage, make high pressure glue in valve seat
Middle inside carry out current limliting buffering, can effectively prevent high pressure glue during plastic emitting from directly the sealing surface of valve is carried out
Erosion, additionally it is possible to play good metering function, effectively extends the service life of valve, and structure is simple, easy to process.
In the present embodiment, the inside middle portion wall of described valve seat 2 and valve element 3 are cone structure, the conical surface of described valve seat 2
Form restricted flow passage 4 with the cone match of valve element 3, the inside middle portion wall of described valve seat 2 is that internal diameter gradually subtracts along glue flow direction
Little cone structure, described valve element 3 is the cone structure that external diameter is gradually reduced along glue flow direction；Described valve seat 2 rear portion interior
Footpath is maximum and is straight-tube shape, when valve element moves in the opposite direction to glue stream（Open described current limliting no erosion valve, glue
Flow to for the A in Fig. 1 to）, the sealing member of described valve element separated with seal receptacle, and glue flows out from the outlet of valve seat, high pressure glue
It is first into the rear portion of valve seat, then pass through middle part and front portion, when the middle part of high-pressure glue liquor stream road valve seat, due to current limliting
The effect of passage, so that the flow of high pressure glue is effectively limited, prevents the moment glue solution flow that coating gun is opened excessive
Erosion is carried out to sealing surface it is even more important that the junction from high pressure to low pressure is the most serious by erosion due to glue
Place, when high pressure glue enters in the middle part of valve seat, high pressure glue can directly act on the cone of the inside middle portion wall of described valve seat
On face, good cushioning effect can be played to high pressure glue so that high pressure glue at the middle part of valve seat just from high pressure to low pressure
Transition is so that transferring to the middle part of valve seat from sealing surface at the multiple supply voltage of glue and making point by erosion from traditional straight
Connect and act on sealing surface and transfer to valve seat itself, the sealing surface of valve seat and valve element is played a good protection, effectively extend
The service life of valve；When valve element continues to move in the opposite direction to glue stream, so that the flow of glue gradually increases
Greatly, conveniently glue solution flow is controlled, certainly, the initial flow of glue（I.e. valve opens moment）By valve element external diameter and
The internal diameter of valve seat middle inside determines, can be configured in the external diameter and valve seat middle inside of valve element according to different demands
Footpath differs from and to control the initial flow of glue.
In the present embodiment, the inside front ends of described valve seat 2 are provided with cushion chamber 6, and described cushion chamber 6 is the front portion of valve seat 2
Medial wall is cooperatively formed with described valve element 3, and because valve element is cone structure, thus valve element is combined to form with the front inner of valve seat
The larger cushion chamber in space（With respect to restricted flow passage）, enter into cushion chamber after glue flows through restricted flow passage, glue carried out
Expand release, secondary buffer is carried out to high pressure glue, by the buffering twice of restricted flow passage and cushion chamber so that flowing to valve seat
The pressure of the glue of sealing surface greatly reduces, and reduce further the erosion to sealing surface, extends the service life of valve.
In the present embodiment, the front end of described valve element 3 is fixedly installed the sealing member 5 of chondritic, described sealing member 5 and valve
Seat 2 crush seals, described sealing member 6 is arranged at described valve element 3 along axially embedding from the front end surface of valve element of described valve element 3,
Stability Analysis of Structures is firm, good airproof performance.
In the present embodiment, inside the port of export of described valve seat 2, it is fixedly installed seal receptacle 7, described seal receptacle 7 and valve seat 2
Outlet be coaxially arranged with liquid flow hole 8, meeting of described liquid flow hole 8 is formed and described sealing member 5 to the port chamfering of valve element 3 one end
The globoidal structure of form-fit, described seal receptacle 7 and sealing member 5 are existing hard alloy and make, and by said structure, make
Obtain the contact area of seal receptacle and sealing member（I.e. sealing surface area）Greatly, can effectively strengthen close between seal receptacle and sealing member
Sealing property.
The fore-and-aft direction of the present invention is to flow to according to glue to be formed, and that is, the exit end of valve seat is front, the entrance of valve seat
For rear, that is, from Fig. 1 A to as viewed from, arrow direction is front.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although with reference to relatively
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, the objective without deviating from technical solution of the present invention and scope, and it all should be covered at this
In the middle of the right of invention.
Claims (6)
1. the flow-limiting valve of a kind of sealing surface for coating gun no erosion, including valve seat and the valve element that is arranged in described valve seat and
Described valve element can along the axially reciprocating of valve seat it is characterised in that：Described valve element external diameter be less than described valve seat internal diameter and with
The inside middle portion wall of described valve seat cooperatively forms the restricted flow passage that glue is entered with row buffering；
The inside middle portion wall of described valve seat and valve element are cone structure, the cone match shape of the conical surface of described valve seat and valve element
Become restricted flow passage；
The front end of described valve element is fixedly installed the sealing member of chondritic, described sealing member and valve seat crush seal.
2. according to claim 1 be used for coating gun sealing surface no erosion flow-limiting valve it is characterised in that：Described valve seat
Inside middle portion wall is the cone structure that internal diameter is gradually reduced along glue flow direction, and described valve element is that external diameter flows to gradually along glue
The cone structure reducing.
3. according to claim 2 be used for coating gun sealing surface no erosion flow-limiting valve it is characterised in that：Described valve seat
Inside front ends are provided with cushion chamber.
4. according to claim 3 be used for coating gun sealing surface no erosion flow-limiting valve it is characterised in that：Described cushion chamber
Front inner wall and described valve element for valve seat cooperatively form.
5. according to claim 4 be used for coating gun sealing surface no erosion flow-limiting valve it is characterised in that：Described sealing member
It is arranged at described valve element along axially embedding from the front end surface of valve element of described valve element.
6. according to claim 5 be used for coating gun sealing surface no erosion flow-limiting valve it is characterised in that：Described valve seat
It is fixedly installed seal receptacle, described seal receptacle is coaxially arranged with liquid flow hole with the outlet of valve seat, described liquid flow hole inside the port of export
Meet the globoidal structure being formed with described sealing member form-fit to the port chamfering of valve element one end.
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 CN103742658A (en) | 2014-04-23 |
| CN103742658B true 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) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP6576657B2 (en) * | 2015-03-17 | 2019-09-18 | Hoya株式会社 | Optical glass and optical element |
| CN105927530B (en) * | 2016-06-24 | 2017-08-08 | 无锡海升高压泵有限公司 | High-pressure pump current limliting valve seat |
| FR3064330B1 (en) * | 2017-03-23 | 2021-12-03 | Valeo Systemes De Controle Moteur | FLUID FLOW REGULATION VALVE |
Family Cites Families (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 |
| DE102011117295A1 (en) * | 2011-11-01 | 2013-05-02 | Focke & Co. (Gmbh & Co. Kg) | Method for detecting faults and detecting the valve lift 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN103742658A (en) | 2014-04-23 |
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