CN110523557A - A kind of efficient hand-held spray guns and spraying method - Google Patents
A kind of efficient hand-held spray guns and spraying method Download PDFInfo
- Publication number
- CN110523557A CN110523557A CN201910763838.9A CN201910763838A CN110523557A CN 110523557 A CN110523557 A CN 110523557A CN 201910763838 A CN201910763838 A CN 201910763838A CN 110523557 A CN110523557 A CN 110523557A
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- Prior art keywords
- sap cavity
- liquid
- cavity
- pressure
- stablizer
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/047—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
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Abstract
The invention discloses a kind of efficient hand-held spray guns and spraying methods, spray gun includes ontology (1) and nozzle (2), it is equipped with sap cavity (24) in the ontology, the nozzle (2) be set to ontology (1) one end along its length and with it is described go out sap cavity (24) be connected to, it is characterized by also including a voltage-stablizer (4) on ontology (1), voltage-stablizer (4) position is connected to sap cavity (24) out；The voltage-stablizer is used to maintain a stable spray pressure to the spraying liquid in sap cavity out (24), guarantees that nozzle (2) persistently spray the spraying liquid.This spray gun structure is simple, holds light, and dismounting fluid infusion is all very convenient, and spraying effect is good, no dropping liquid phenomenon of leakage, easy to use and reliable, solves the problems, such as that current electromagnet type spray gun is heavy, noise is big and the defects of being easy dropping liquid, flow liquid of painting.
Description
Technical field
The invention belongs to the technical fields of spray gun, and in particular to a kind of efficient hand-held spray guns and spraying method.
Background technique
Spray gun is a kind of a kind of equipment discharged rapidly using compressed liquid or compressed air as power, most common
Using being exactly to be used for direct coatings, realizes the spraying functions such as glue spraying, gluing, spray painting, coating, be widely used in each
Field.
A kind of traditional structure is electromagnet type spray gun, and it includes the body of a gun, pipette tips, the body of a gun and pipette tips pass through a connection machine
Structure connects, and the basin of a storing paint is housed on the body of a gun；The pipette tips include a nozzle, the compression generated using air contraction principle
Air when the air cap through spray gun front ejects, just produces one than big in the front for the paint spray nozzle being attached thereto
The low low-pressure area of air pressure just sucks out coating from coating basin in this pressure difference that gun slot generates, and empty in compression
Under the action of gas high speed jet power, it is atomized into particle and is sprayed at coated article surface.In spray gun body be equipped with the pump housing, plunger rod,
The composition such as spring, electromagnet, plunger rod and spring are acted on by electromagnet, and solenoid actuated armature, armature acts on plunger rod
The reciprocating motion of high speed is carried out, suction phenomenon is formed, the liquid that spray pump system will spray is sucked by vacuum from basin, together
When formed pressure to liquid carry out compression injection from nozzle spray.There is following more disadvantage in this traditional electromagnet spray gun:
1. being to hit plunger rod back and forth by armature to realize since spray gun drawing liquid and liquid spray all, this mode is by spray
Mouth, which is ejected the liquid come, to be sprayed in the form of pulsed, this allows for spraying will cause for a long time have drop at nozzle
Leakage, flow liquid phenomenon, influence operator's hand-held, also result in the waste of spraying liquid, pollute to operating environment；
2. armature discontinuity and plunger rod, which hit or unclamp just final driving piston rod, to be realized since electromagnet adsorbs armature
Hydrojet, armature and piston rod hit the strong vibration so that entire spray gun generation repeatedly, so that operator can not accurately hold
Firmly gun handle is accurately sprayed, brought although being generally provided with damping fin on armature carries out damping noise reduction
Noise still can be close to 100dB, and noise is larger, influences the mode of operation of user, also will cause certain pollution from environmental noise,
It is unfavorable for constructing operation；
3. being to be hit repeatedly based on armature with piston rod since it sprays principle, this spray gun spraying pressure is low, only
It can be suitably used for spraying low-viscosity (mobile) liquid, it is poor for applicability, it is unable to satisfy the actual use demand of various concentration spraying；
4. the body of a gun is equipped with coating basin, coating basin is normally at body of a gun upper end or lower end, not only influences entire spray gun
The balance of grip, while but also entire electric spray gun is heavy, then in the long period, work is often to change when spraying operation
The mode of change of grip rifle needs to control special angle for a long time, thus be easy to cause the hand fatigue or spraying process of operator
Angle tilt occurs for spray gun, so that coating extraction is unbalanced, causes to spray uneven spraying interruption and sprayed surface effect is poor
Etc. bad spraying effect；
5. coating tank volume is generally less than normal, is carrying out since spray gun is to hold to carry out operation for hand
When the operation of heavy workload, the coating basin of single storage is not enough used, and needs to stop to spray, and adds coating toward basin, then weigh
It is newly sprayed, and so on, is dismantled from the body of a gun and installation basin is all more troublesome.
Therefore, we still need to that traditional electromagnet type spray gun is studied and improved, to provide a kind of applicability more
Extensively, the lance technology of actual use demand is more adapted to.
Summary of the invention
The purpose of the present invention is to solve current electromagnet type spray gun heaviness, noise is big and spray painting is easy dropping liquid, stream
The defects of liquid problem, a kind of efficient hand-held spray guns are provided.
In order to achieve the above object of the invention, the invention adopts the following technical scheme:
A kind of efficient hand-held spray guns, including the pump housing, hand-held part and nozzle, the hand-held part are set to below the pump housing,
Be equipped with sap cavity in the pump housing, the nozzle be set to pump housing one end along its length and with it is described go out sap cavity be connected to, spy
Sign is: further including a voltage-stablizer being set on the pump housing, the voltage-stablizer position is connected to the sap cavity out；The pressure stabilizing
Device is used to maintain a stable spray pressure to the spraying liquid in sap cavity out, guarantees that nozzle persistently sprays the spray coating liquor
Body.
Further, the voltage-stablizer includes a telescoping mechanism, is connected to equipped with one with the sap cavity out in the pump housing
Pressure stabilizing cavity, the telescoping mechanism are set in the pressure stabilizing cavity, and the telescoping mechanism is closed spraying liquid and enters from the sap cavity out
The inlet of the pressure stabilizing cavity, telescoping mechanism are squeezed spray of the flexible adjustment from sap cavity out into the pressure stabilizing cavity by spraying liquid
The liquid storage space size of coating liquid.
Further, the telescoping mechanism includes the first spring and the piston that connect with the first spring, first bullet
Spring contacts at the top of (extrusion fit) Yu Suoshu pressure stabilizing cavity, and the piston of the pressure stabilizing cavity lower part is closed the inlet.Spraying liquid
Piston is caused to squeeze into sap cavity out, piston is jacked up and enters in pressure stabilizing cavity, piston, which is jacked up, causes the first spring to be compressed,
The liquid storage space being connected to sap cavity out is formed in first spring-compressed to the pressure stabilizing cavity, which stores full spray coating liquor
Body.
Further, the voltage-stablizer further includes an adjustment portion being threadedly coupled with the pump housing, the adjustment portion with it is described
First spring one end contacts, and the inlet is equipped with for piston to be limited in the limiting section in pressure stabilizing cavity, and the adjustment portion is used
In the pressure size for adjusting first spring.
Further, the inner wall of the pressure stabilizing cavity upper end be equipped with return port, when it is described go out sap cavity and with pressure stabilizing cavity phase
Spraying liquid is superfluous in the liquid storage space connect, and when so that pressure is excessive, the voltage-stablizer movement is so that connected space is expanded to institute
Return port position is stated, the spraying liquid is flowed out from return port.Telescoping mechanism is compressed to minimum i.e. spring and is compressed to
Most expose return port in short-term, is flowed back into convenient for spraying liquid on the memory device of the outside of the pump housing.
When liquid inlet volume is greater than liquid outlet quantity, when nozzle can not timely spray, cause to pump intracorporal fluid excess, pressure mistake
It is high.Voltage-stablizer is specifically that piston top plays raising by spraying liquid, is back in the container of storage out of return port.
Further, going out between sap cavity and the nozzle for the pump housing is vented knob equipped with one, and the exhaust knob is logical
Valve rod fixing sleeve is crossed to be detachably connected with the pump housing；The valve rod of the valve rod fixing sleeve is stretched out in the sap cavity out equipped with one end.
Further, imbibition chamber is additionally provided in the pump housing, the imbibition chamber, out sap cavity, nozzle are successively set on same
On axis, the imbibition chamber goes out between sap cavity to pass through check-valves；Straight line thrustor, the straight line are equipped in the imbibition chamber
Thrustor, which is moved back and forth, pushes spraying liquid from imbibition chamber to check-valves direction, opened when reaching preset pressure check-valves into
Enter into the sap cavity out.
Further, the straight line thrustor includes the driving mechanism set gradually, capacity eccentric bearing component and plunger
Bar, the driving mechanism drive capacity eccentric bearing component movement, and the capacity eccentric bearing component drives plunger rod to carry out linear reciprocation fortune
It is dynamic, form negative pressure in imbibition chamber, from external suction spraying liquid to imbibition chamber in and after pushing spraying liquid to enter sap cavity,
Finally sprayed from nozzle.
Further, the driving mechanism includes motor, driving gear, driven gear and connecting shaft, the driving gear
It is set on the electric machine main shaft, the driving gear is engaged with the driven gear, and the driven gear is set in the company
Spindle one end, the connecting shaft other end are connect with the capacity eccentric bearing component.Motor selects magneto.
Traditional electromagnet spray gun pushes plunger rod since electromagnet beats armature repeatedly, beats and generate 100dB's or so
Noise, and the new spray gun that the present invention uses is 50dB or so, noise reduction effect becomes apparent from.Spray gun noise of the present invention reduces by will be former
First having electromagnet, adhesive armature pushes plunger rod to become using magneto driving capacity eccentric bearing component drive plunger rod repeatedly
Noise is effectively reduced by the driving method realization of this new construction in work.
Further, this spray gun further includes the liquid storing bag of a Backpack type, and the liquid storing bag passes through outlet tube and the pump housing
Connection, for storing spraying liquid.
The present invention also provides a kind of methods for carrying out pressure stabilizing spraying using above-mentioned spray gun, comprising the following steps:
S1 spray gun starts imbibition, and plunger rod moves back and forth the formation negative pressure in the spray gun pump housing and is drawn into out spraying liquid
Sap cavity, nozzle is without liquid out, connector that the voltage-stablizer closure pressure stabilizing cavity in pressure stabilizing cavity is connected to sap cavity out；
After S2 goes out the full spraying liquid of sap cavity storage, spraying liquid squeezes voltage-stablizer to form pressure drive voltage-stablizer movement,
Spraying liquid enters in the liquid storage space being connected in pressure stabilizing cavity with sap cavity out, and spraying liquid is sprayed from the nozzle of sap cavity side out,
The voltage-stablizer generates a stable pressure for guaranteeing that nozzle persistently sprays spraying liquid to the spraying liquid in sap cavity out；
S3 closes spray gun, and spraying liquid reduces the pressure decline made to obtain in sap cavity, the voltage-stablizer in the sap cavity out
It is moved to the position in original liquid storage space.
For step S1 of the invention specifically, spray gun starts, plunger rod reciprocating motion forms negative pressure in spray gun admission chamber.Column
Stopper rod back drawing liquid when coating sucked into admission chamber, admission chamber ball valve is opened by coating at this time.Coating is pushed by plunger rod again
It opening anti-return ball valve and enters sap cavity, admission chamber ball valve is closed admission chamber with coating and is connected to connector by spring pressure at this time,
Nozzle is without liquid out, connector that the voltage-stablizer closure pressure stabilizing cavity in pressure stabilizing cavity is connected to sap cavity out.
Step S2 of the invention is specifically, S2 turn exhaust knob, makes air in the pump housing pass through nozzle discharge, sap cavity stores up out
After being filled with liquid, it is at this time the adjusting stage that examination spray can be carried out by, which screwing exhaust knob,.Since liquid inlet volume is bigger than liquid outlet quantity, do not have
The coating of ejection carries out extruding to the piston of voltage-stablizer in the pump housing and with piston movement, and spraying liquid enters in pressure stabilizing cavity
In the liquid storage space being connected to sap cavity out, by hereinbefore telling that the first spring also generates pressure to coating.The sports bag of plunger rod
Liquor charging and imbibition two parts are included, when plunger rod carries out imbibition, coating loses power resources, at this time just by the bullet in voltage-stablizer
Losing when spring makes up plunger rod imbibition as interim power resources to pressure caused by the coating extrusion in pressure stabilizing cavity
Power neutral gear.It ensure that the ejection coating of nozzle energy duration.
Compared with prior art, the present invention beneficial effect is:
1. being arranged by voltage-stablizer, the pressure that one stabilization of spraying process persistently sprays ensure that, and then guarantee spraying effect
Fruit has prevented the drip phenomenon of subsequent nozzle spray painting, and for the corresponding storage free air space size of voltage-stablizer, user can basis
Actual demand is adjusted；
2. the exhaust knob by nozzle end is arranged, the gas in sap cavity can be quickly discharged out by being vented knob by manual adjustment
Body, it is bad to reduce early period spraying effect, the big phenomenon of sprayed surface coating particles；
3. using capacity eccentric bearing component drive plunger rod move back and forth, relative to conventional electromagnets driving mode,
The vibratility of spray gun is greatly reduced, while noise is also smaller, improves the usage experience of user, reduce to environmental noise
Pollution；
4. passing through the setting of back belt type container bag, compared with directly filling fluid reservoir in conventional lance, hand grip is reduced
The weight of spray gun is conducive to angle control and modulation, and carry by human body so that arm grip spraying operation is lighter
The capacity of the spraying liquid of storage is also bigger, without disassembly addition fluid infusion repeatedly in spraying process, improves large area spraying
When working efficiency；
5. spray gun structure is simple, grip is light, and dismounting fluid infusion is all very convenient, and spraying effect is good, and no dropping liquid leakage is existing
As easy to use and reliable.
Detailed description of the invention
Fig. 1 is a kind of efficient hand-held spray guns sectional view of structure；
Fig. 2 is a kind of perspective view of the efficient hand-held spray guns of structure；
Fig. 3 is a kind of cross-sectional view of the efficient hand-held spray guns of structure；
Fig. 4 is the structure chart of valve rod；
Fig. 5 is the structure chart for being vented knob；
Fig. 6 is the structure chart of driving mechanism；
Fig. 7 is the state diagram of the progress pressure stabilizing variation of voltage-stablizer；
Fig. 8 is the schematic diagram of capacity eccentric bearing component；
Fig. 9 is the cross-sectional view of capacity eccentric bearing component.
In figure: the pump housing 1, nozzle 2, nozzle shroud 3, voltage-stablizer 4, the first spring 5, piston 6, adjusting nut 7, backflow through hole
8, it is vented knob 9, valve rod fixing sleeve 10, anti-return valve seat 11, second spring 12, valve rod 13, fluid hole road 131, anti-return ball
Valve 14, inlet valve seat 15, inlet ball valve 16, plunger rod 17, plunger rod fixing sleeve 18, copper sheathing 19, polymeric seal part 20,
Capacity eccentric bearing component 21, eccentric bushing 22, driving mechanism 23, gear wheel 231, pinion gear 232, driving gear 233, transmission gear
234, motor 235, connecting shaft 236, bearing 237, fixture nut 237；Sap cavity 24 out, imbibition chamber 25, pressure stabilizing cavity 26, input duct
27, liquid storage space 28, bayonet 29, inlet 30, limiting section 31, bearing 32, bearing holder (housing, cover) 33.
Specific embodiment
Below by specific embodiment the technical scheme of the present invention will be further described explanation so that the present invention is more clear
Chu is understood.Those skilled in the art can be understood easily other advantages and function of the invention by content disclosed by this specification
Effect.The present invention can also lead in addition different specific embodiments and be embodied or practiced, the various details in this specification
Various modifications or alterations can be without departing from the spirit of the present invention carried out based on different viewpoints and application.It should be noted that
In the absence of conflict, the feature in following embodiment and embodiment can be combined with each other.It should be noted that following implement
The diagram basic conception that only the invention is illustrated in a schematic way provided in example, only display is related with the present invention in schema then
Component rather than component count, shape and size when according to actual implementation draw, when actual implementation each component kenel, number
Amount and ratio can arbitrarily change for one kind, and its assembly layout kenel may also be increasingly complex.
Embodiment 1
Present embodiment discloses a kind of high-efficient spray guns, as shown in Figs. 1-2, including set in the pump housing described in the pump housing 1 and nozzle 2
Have sap cavity 24 out, the nozzle 2 be set to the one end along its length of the pump housing 1 and with it is described go out sap cavity 24 be connected to, set on the pump housing 1
There is voltage-stablizer 4,4 position of voltage-stablizer is connected to the sap cavity 24 out；The voltage-stablizer 4 is used for the spray in sap cavity out
Coating liquid maintains a stable spray pressure, guarantees that nozzle persistently sprays the spraying liquid.
Specifically, voltage-stablizer 4 is arranged in the pressure stabilizing cavity 26 on the pump housing 1, pressure stabilizing cavity 26 is connected to sap cavity 24 out, is led to
The change in location of voltage-stablizer compression is crossed to control the size in the liquid storage space with sap cavity out, such spraying liquid is filled to out liquid
When entering back into pressure stabilizing cavity 26 after chamber, the adjustment of the size in liquid storage space can be carried out according to hydraulic size.
For a kind of 4 structure of voltage-stablizer as shown in Figure 1-3, including a telescoping mechanism, the telescoping mechanism is set to the pressure stabilizing cavity
In 26, the telescoping mechanism blocks the inlet 30 that spraying liquid enters the pressure stabilizing cavity 26 from the sap cavity 24 out, telescopic machine
Structure is squeezed the size in the liquid storage space 28 of spraying liquid of the flexible adjustment from sap cavity out into the pressure stabilizing cavity by spraying liquid,
The namely described telescoping mechanism 41 is flexible in pressure stabilizing cavity, reduces or expands and connects in the pressure stabilizing cavity 26 with sap cavity 24 out
Liquid storage space 28, which is used to store out the extra spraying liquid of sap cavity 24.
A kind of preferred structure of above-mentioned telescoping mechanism be include the first spring 5 and the piston 6 that is connect with the first spring 5,
It is contacted (the first spring of pressure stabilizing cavity top squeeze) at the top of first spring, 5 pressure stabilizing cavity, the bottom of pressure stabilizing cavity, which is equipped with, limits piston
Make the limiting section 31 in pressure stabilizing cavity.
The voltage-stablizer further includes one being detachably connected with the adjustment portion 7 with the pump housing 1 (as being threadedly coupled or rotating
Connection) adjustment portion 7, as shown in the figure to be threadedly coupled with the pump housing 1, adjustment portion 7 is set at the top of pressure stabilizing cavity, the adjustment portion 7 and
First spring, 5 one end contacts (adjustment portion squeezes the first spring, forms lower pressure to the first spring), pressure stabilizing cavity 26 into
It is equipped with the limiting section 31 for piston 6 to be limited in pressure stabilizing cavity 26 at liquid mouth 30 and (limits what piston moved down in pressure stabilizing cavity 26
Maximum position), since piston limit can not move down, the adjustment portion 7 is used to adjust the pressure for the first spring 5 being attached thereto.
Voltage-stablizer 4 is preferably provided at the upper end of the pump housing 1.
It is illustrated below with reference to pressure value and attached drawing:
Since the feed liquor of spray gun is the reciprocating motion by plunger rod 17, forms negative pressure and realize that spraying liquid is drawn into spray gun
It is interior to enter in sap cavity 24；
Assuming that the first spring 5 brings the pressure of 5mp to piston 6 after squeezing, the fluid pressure gone out in sap cavity 24 in this way needs
It could be jacked up greater than 5mp；
The effect of adjustment portion 7 is exactly after working as spray gun use over time, between plunger rod 17 and polymeric seal part 20
Gap will increase, and pressure can reduce, and piston 6 can not be jacked up to a state for forming pressure stabilizing.One appropriate will be adjusted to lower
Section portion；
First spring and the preheating setting pressure of adjustment portion are 5mp, are exactly that the screw thread of adjustment portion is screwed into downwards bottom, only 5mp,
5mp is not exceeded, is realized by the adjusting of adjustment portion and turns the pressure of the first spring down.
A kind of structure of the adjustment portion 7 of the present embodiment is to adjust end cap, as shown, 5 one end of the first spring is withstood
Adjustable side covers, and adjusts end cap and connect with the threaded upper ends of the pump housing 1, and rotation adjusts end cap, adjusts position of the end cap on the pump housing
It changes, since 6 lower end of piston is limited, adjusts end cap rotation and the pressure of the first spring 5 is driven to change.As shown in the figure
Adjusting end cap is located at 26 upper end of pressure stabilizing cavity with the pump housing 1 to be threadedly coupled.
Based on this, on the side wall that the pump housing 1 is located at pressure stabilizing cavity 26 be equipped with return port 8, that is, liquid outlet quantity be less than into
When liquid measure causes hydraulic excessive in the pump housing, 28 continuous enlargement of liquid storage space, piston continue on to move on to 8 institute of the return port in place
It sets, the spraying liquid is flowed out from return port 8.Specifically, hydraulic excessive, piston 6, which is headed on to move up by liquid, drives the first spring 5
Continue to compress, piston 6 is moved to a highest point, exposes return port 8, and spraying liquid flows out in reservoir from return port 8,
Realize that ejecting for spraying liquid guarantees that pressure is stablized by reflux.
As shown in Figs 1-4, the present embodiment is equipped with second spring 12 and valve rod 13, the head position of valve rod 13 in sap cavity 24 out
In 14 side of anti-return ball valve, towards second spring 12 is arranged in nozzle side and the body of rod, head is equipped with along bar axis for the body of rod of valve rod 13
The fluid hole road 131 in line direction, spraying liquid opens anti-return ball valve 14 and then opens 13 head of valve rod, from fluid hole road 131
Enter out sap cavity 24.Fluid hole road can be set to through-hole slot as illustrated in the drawing.When spray gun starts, spraying liquid is to ball valve
14 squeeze, and the compression of ball valve 14 opens valve rod 13, open the channel of the sap cavity 11 out, and spraying liquid is sprayed from nozzle 2.
One end, that is, head of valve rod 13 is placed in the sap cavity 24 out of the pump housing 1, and the other end is connect with valve rod fixing sleeve 10, valve rod
The rear end of fixing sleeve 10 is detachably connected with the pump housing 1 and (is threadedly coupled in figure)；Nozzle 2 and the front end of valve rod fixing sleeve 10 are removable
Unload connection (being threadedly coupled in figure).Before spray gun feed liquor, for the ease of air in sap cavity 24 is discharged out, the pump housing 1 of spray gun exists
An exhaust knob 5 is equipped between sap cavity 24 and the nozzle 2 out, nozzle 2 is detachably connected with valve rod fixing sleeve 10, the exhaust
Knob 5 is detachably connected (as shown in the figure is to connect by convex block 101 with the matched mode of groove 51) by valve rod fixing sleeve 10.
In conjunction with shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 5, the venting principleand of this exhaust knob are as follows:
1. the exhaust knob 5 is rotated, since exhaust knob 5 and valve rod fixing sleeve 10 are fixed, valve rod 13 and valve rod
Fixing sleeve 10 is fixed, thus rotating exhaust knob 5 is exactly while to drive nozzle 2 from rotation valve rod fixing sleeve 10 on the pump housing 1
Mobile, when exhaust knob 5 laterally rotates, band ovable valve stem 13 moves outwardly to valve rod head and sap cavity wall point out from sap cavity 24 out
It opens, and then excludes air in sap cavity 24, be discharged from nozzle 2；
2. rotating the exhaust knob 5 to inboard, valve rod fixing sleeve 10 is tightened with the pump housing 1, valve rod 13 when being vented completion
It is moved into out sap cavity 24, until 13 head of valve rod contacts (position i.e. as shown in the figure) with sap cavity 24 out.
Preferably, as shown in Figs. 1-2, a push rod can also be set again between ball valve 14 and valve rod 13 and be set in
Spring on push rod, this section of horizontal space setting are to be upwardly into pressure stabilizing cavity to spraying liquid and stay a buffer channel.Spraying
Liquid pushes ball valve 14 to push valve rod 13 open to the movement of 13 side of valve rod after being inhaled into the pump housing, enters out in sap cavity 24.
This electric spray gun is additionally provided with imbibition chamber 25 in the pump housing 1, and the imbibition chamber 25, sap cavity 24, nozzle 2 are successively set on out
On same axis, the imbibition chamber 25 goes out to be equipped with anti-return ball valve 14 between sap cavity 24, realizes channel by anti-return ball valve 14
Connection and closing.
Be equipped with straight line thrustor in the imbibition chamber 25, the straight line thrustor move back and forth by spraying liquid from
Imbibition chamber 25 is pushed to 14 direction of anti-return ball valve, and anti-return ball valve 14 is opened when reaching preset pressure and enters the sap cavity out
In 24.This straight line thrustor, including driving mechanism, capacity eccentric bearing component 21 and the plunger rod 17 set gradually, the driving
Mechanism drives capacity eccentric bearing component 21 to move, and the rotation of capacity eccentric bearing component 21 drives plunger rod 17 to carry out linear reciprocation fortune
It is dynamic, form negative pressure in imbibition chamber 25,25 from external suction spraying liquid to imbibition chamber in and push spraying liquid to enter liquid
After chamber 24, finally sprayed from nozzle 2.
Plunger rod fixing sleeve 18 is set in the right end of the pump housing 1, copper sheathing 19, plunger rod 17 are set in plunger rod fixing sleeve 18
Across copper sheathing 19, protrudes into imbibition chamber 25 in carrying out and move back and forth.Prevent spraying liquid from leaking to improve leakproofness, in copper sheathing
19 are arranged a sealing element 20 with 25 joint of imbibition chamber, it is preferred to use polymeric seal part improves wearability.
Preferably, the driving mechanism 23 includes motor 235, driving gear 233, transmission gear 234 and connecting shaft 236,
The driving gear 233 is set on 235 main shaft of motor, and the driving gear 233 is engaged with the driven gear 234,
The driven gear 234 drives the connecting shaft 236 to rotate, 236 other end of connecting shaft and the capacity eccentric bearing component 21
Connection, capacity eccentric bearing component 21 are connect with plunger rod 17, are driven capacity eccentric bearing component to rotate and then are pushed plunger rod 17 in imbibition
Straight reciprocating motion is done in chamber 25, is formed negative pressure and is realized pumping liquid.Specifically, can also be in connecting shaft 236 and transmission gear
Directly setting gear wheel (dissipating wheel) 231 realizes a power transmission with pinion gear 232.
Each mechanism or component such as driving mechanism in the present embodiment can be adjusted according to Difference angles, such as be set
It sets on left side, upside or right side, mainly realizes the purpose for driving capacity eccentric bearing component to be rotated.
As Figure 8-9, capacity eccentric bearing component 21 includes eccentric bushing 22, bearing 32 and bearing holder (housing, cover) 33, the eccentric bushing 22
The upper termination connecting shaft 236, the eccentric bushing 22 lower termination bearing 32,33 side wall of bearing holder (housing, cover) are connect with plunger rod 17,
The inner ring of the bearing holder (housing, cover) 33 is less than the width L2 with 17 vertical direction of plunger rod along the axial width L1 of plunger rod 17.The drive
It includes the rotation of the connecting shaft 236 with dynamic bearing 32 and bearing 32 in bearing that motivation structure, which drives the movement of capacity eccentric bearing component 21,
Bearing holder (housing, cover) 33 and plunger rod 17 is driven to carry out straight reciprocating motion when rotation contact inner ring in set 33.
Driving mechanism 23 drives eccentric bushing 22 to rotate, and eccentric bushing 22 is rotated with dynamic bearing 32, not due to 33 inner ring of bearing holder (housing, cover)
It is regular circle, bearing 32 is when 33 inner ring of bearing holder (housing, cover) rotates, when turning to axial along plunger rod 17, bearing 32 and bearing holder (housing, cover)
33 inner rings contact, and bearing holder (housing, cover) 33 and plunger rod 17 are pushed or separate toward admission chamber side, realize the reciprocal fortune of plunger rod 17
It is dynamic；Bearing 32 is when 33 inner ring of bearing holder (housing, cover) rotates, when turning to 17 vertical direction of plunger rod, bearing 32 and 33 inner ring of bearing holder (housing, cover)
It does not contact.
In a kind of preferred embodiment, the of different size of 33 inner ring of bearing holder (housing, cover) can be realized by oval inner ring, or
Person is realized by the way that convex block or step etc. is arranged in 33 inner wall of bearing holder (housing, cover).
The relatively narrow side of 33 inner ring of bearing holder (housing, cover) is connect with plunger rod 17, particular by the bayonet 29 of a circular side opening
It realizes, the plunger rod 17 engages with bayonet 29.
In the shell of the external setting encapsulation of entire spray gun structure and the handle of grip, handle is preferably provided to be sprayed with nozzle
The opposite side in direction out, such as the place side of admission chamber 25.
This spray gun further includes the liquid storing bag of a Backpack type, and user can store a large amount of spray coating liquors by way of knapsack
Body, the liquid storing bag is connected to by outlet tube with the pump housing 1, for storing spraying liquid.Specifically, being equipped on the pump housing 1
Inlet valve seat 15,27 both ends of input duct in inlet valve seat 15 are connected to imbibition chamber 25, liquid storing bag respectively, pass through driving
The movement of mechanism drive plunger rod 17 forms negative pressure and is drawn into spraying liquid in imbibition chamber 25 from liquid storing bag.Liquid storing bag preferably uses
Telescopic elastic material is made, and capacity is allowed to expand expansion on the basis of limiting specification.It is equipped in input duct 27
One inlet ball valve 16, avoids flowing back.
Preferably, it is provided with hand-held part below the pump housing 1, is held convenient for hand.Hand-held part is most preferably arranged in driving machine
Structure side.
For spray angle control, nozzle shroud 3 can also be arranged on nozzle 2, so that the angle that spraying liquid sprays
In the tubaeform divergence range of nozzle shroud 3.
The voltage-stablizer of the present embodiment mainly plays energy storage effect.When the electric motor starting of driving mechanism, unscrewing exhaust nut,
No pressure in each chamber of the pump housing only carries out the process of an exhaust, so the motion frequency of plunger rod can be quickly.Work as spray
It applies chamber indoor liquid to fill up, screws exhaust nut, the motion frequency of plunger rod can reach a balance.
In order to make it easy to understand, being illustrated to the principle combination numerical value of this spray gun pressure stabilizing realization:
Assuming that plunger rod promotion pressure is set as 7MP or so.Set spray pressure 5MP, liquid absorption amount 350mm2, liquid outlet quantity
200mm2, constant pressure liquid storage amount 130mm2, ball valve resets to home position and takes back amount of liquid 20mm2, flat material is thus formed one
Weighing apparatus.The working frequency of piston and the working frequency of plunger rod are consistent；
The carry out constant pressure work of voltage-stablizer, when plunger rod goes back imbibition, at this time with regard to without after in the pump housing of entire spray gun
Continuous pressure supply, voltage-stablizer provide for pressure, guarantee that spray pressure in 5MP or more, enables nozzle to continue smoothly to go out
Liquid.
Embodiment 2
Unlike the first embodiment, the voltage-stablizer 4 of the present embodiment is a compression deformation part, will such as elastomer block or air bag
The limit of the limiting section 31 of the elastomer block or air bag one end and 26 bottom of pressure stabilizing cavity block it is described go out sap cavity 24 and pressure stabilizing cavity 26 it
Between inlet 30, the other end connect with regulating part 7.
Being pressurized by elastomer block or air bag, deformation occurs increases liquid storage space 28, makes to obtain that liquid excessive in sap cavity enters
To liquid storage space, when being more than preset pressure value, it is deflected into maximum, exposes return port, spraying liquid flows back into reservoir bag.
Embodiment 3
Corresponding with a kind of efficient hand-held spray guns above-mentioned, the present invention also provides a kind of method of pressure stabilizing spraying, packets
Include following steps:
S1 spray gun starts imbibition, and spraying liquid is drawn into out sap cavity, and for nozzle without liquid out, the voltage-stablizer in pressure stabilizing cavity is stifled
The connector being firmly connected in pressure stabilizing cavity with sap cavity out；
After S2 goes out the full spraying liquid of sap cavity storage, continues feed liquor and spraying liquid is made to squeeze voltage-stablizer to form pressure drive
Voltage-stablizer is mobile to open connector, and spraying liquid enters in the liquid storage space being connected in pressure stabilizing cavity with sap cavity out, spraying liquid from
The nozzle of sap cavity side sprays out, and the voltage-stablizer generates a stable pressure for guaranteeing to the spraying liquid in sap cavity out
Nozzle persistently sprays the spraying liquid；
S3 closes spray gun, and spraying liquid reduces the pressure decline made to obtain in sap cavity, the voltage-stablizer in the sap cavity out
It is moved to the position in original liquid storage space.
This method further includes the steps of exhausting comprising going out sap cavity in the step S1 stage, by rotary rowed cyclone button,
Band ovable valve stem is mobile to nozzle direction out of out sap cavity, and the gas in sap cavity out is discharged from nozzle.Then plunger rod is pumping again
It moves back and forth in vivo and forms negative pressure, after spraying liquid is sucked full of sap cavity is gone out, extra spraying liquid opens voltage-stablizer and enters
In the liquid storage space that pressure stabilizing cavity is connected to sap cavity out.
During S2, the working frequency of piston and the working frequency of plunger rod are consistent.Plunger rod moves forward to sap cavity out
Carry out liquor charging；When plunger rod moves back the imbibition outside the pump housing, supplied due to going out no pressure in sap cavity, voltage-stablizer be provided with pressure to
Spraying liquid in sap cavity out guarantees that nozzle can continue smoothly to go out liquid.
The spraying liquid of the present embodiment opens voltage-stablizer, so that voltage-stablizer is moved to pressure stabilizing cavity upper end, pressure stabilizing cavity lower end is
Liquid storage space, particular by the flexible realization of a telescoping mechanism, by being arranged in the pressure stabilizing cavity that is connected to one with sap cavity out
Telescoping mechanism stretch, telescoping mechanism includes the first spring and piston, the first both ends of the spring respectively at the top of pressure stabilizing cavity, it is living
Plug connection, piston blocks out the inlet that sap cavity is connect with pressure stabilizing cavity when inactive, and piston is same by hydraulic moving opening inlet
When make the first spring-compressed, pressure stabilizing cavity is located at piston and forms liquid storage space.
The pressure stabilizing of voltage-stablizer in step s 2 is realized by the pressure of the first spring, adjusts the by an adjustment portion
The pressure of one spring is realized particular by the adjustment portion that pressure stabilizing cavity upper end is connect with the pump housing is set to.Adjustment portion is preferably adjusted
End cap adjusts end cap and is threadedly coupled with the pump housing, and the first spring is connect with adjusting end cap, is rotated on the pump housing by adjusting end cap
The variation of position, control to the pressure of the first spring (such as default first spring pressure 5mp, preset pressure value be it is fixed, due to
Lower end piston, which is limited, to be moved down from pressure stabilizing cavity, and by screwing out adjusting end cap upwards, the first spring pressure is turned down).
In this method, straight line thrustor drive plunger rod, which moves back and forth, extracts liquid, at the same ball valve opened or
Original position is retracted, liquid opens ball valve and enters imbibition chamber, and voltage-stablizer carries out pressure stabilizing to imbibition chamber.
In this method, the straight line thrustor is that the rotation of capacity eccentric bearing component is driven by driving mechanism,
Capacity eccentric bearing component drives plunger rod to move back and forth in imbibition chamber.
Preferably, driving mechanism is realized using motor and gear cooperation.Motor driven gear rotation, gear are driven by axis
The rotation of capacity eccentric bearing component.
Preferably, the spray gun in this method, which carries out imbibition, is drawn from Backpack type liquid storing bag, just by Backpack type design
In the spraying liquid of storage larger capacity, it is applicable in more large area spraying operation, the dynamics that human body grip needs is reduced, is more easier
Control the spray angle of spray gun.
In the description of the present invention, it is to be understood that, component and step described in embodiment is positioned opposite, digital
Expression formula and numerical value do not limit the scope of the invention.The noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical, vertical, water
It is flat " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, in the absence of explanation to the contrary, these nouns of locality do not indicate that and imply institute
The device or element of finger must have a particular orientation or be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention protection scope；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
The above is only a better embodiment of the present invention and the applied technical principle, and the scope of protection of the present invention is not limited.
It will be appreciated by those skilled in the art that the invention is not limited to the specific embodiments described herein, for a person skilled in the art can
Various apparent variations are enough carried out, readjusts and substitutes without departing from protection scope of the present invention.Therefore, although by with
Upper embodiment is described in further detail the present invention, but the present invention is not limited to the above embodiments only, is not departing from
In the case where present inventive concept,
It can also include more other equivalent embodiments, it is all within the spirit and principle of the disclosure, it is made any to repair
Change, equivalent replacement, improvement etc., should be included within the protection scope of the disclosure.
Claims (10)
1. a kind of efficient hand-held spray guns, including the pump housing (1) and nozzle (2), the pump housing (1) is interior to be equipped with sap cavity (24), institute
State nozzle (2) set on the pump housing (1) one end along its length and with it is described go out sap cavity (24) be connected to, it is characterised in that: further include
One is set to the voltage-stablizer (4) on the pump housing (1), and voltage-stablizer (4) position is connected to sap cavity (24) out；The pressure stabilizing
Device is used to maintain a stable spray pressure to the spraying liquid in sap cavity out (24), guarantees nozzle (2) persistently described in ejection
Spraying liquid.
2. a kind of efficient hand-held spray guns according to claim 1, which is characterized in that the voltage-stablizer (4) is stretched including one
Contracting mechanism, the pump housing (1) is interior to be equipped with one and the pressure stabilizing cavity (26) that sap cavity (24) are connected to out, and the telescoping mechanism is set to institute
State in pressure stabilizing cavity (26), the telescoping mechanism block spraying liquid from it is described go out sap cavity (24) enter the pressure stabilizing cavity (26) into
Liquid mouth (30), telescoping mechanism are squeezed flexible adjustment by spraying liquid and enter storage in the pressure stabilizing cavity (26) from sap cavity out (24)
Liquid storage space (28) size of spraying liquid.
3. a kind of efficient hand-held spray guns according to claim 2, which is characterized in that the telescoping mechanism includes the first bullet
It is contacted at the top of spring (5) and the piston (6) being connect with the first spring (5), first spring and the pressure stabilizing cavity (26), it is described steady
The piston (6) of pressure chamber (26) lower part blocks the inlet (30).
4. a kind of efficient hand-held spray guns according to claim 3, which is characterized in that the voltage-stablizer further includes one and pump
The adjustment portion (7) that body (1) is threadedly coupled, adjustment portion (7) are set at the top of pressure stabilizing cavity (26), the adjustment portion (7) and described first
Spring (5) one end contacts, and the inlet (30) is equipped with the limiting section for being limited in piston (6) in pressure stabilizing cavity (26)
(31), the adjustment portion (7) is used to adjust the pressure size of first spring (6).
5. a kind of efficient hand-held spray guns according to claim 2 or 3, which is characterized in that pressure stabilizing cavity (26) upper end
Inner wall be equipped with backflow through hole (8).
6. a kind of according to claim 1 or 2 or 3 any efficient hand-held spray guns, which is characterized in that the pump housing (1)
Go out between sap cavity (24) and the nozzle (2) be equipped with one exhaust knob (9), the exhaust knob (9) pass through valve rod fixing sleeve
(10) it is detachably connected with the pump housing (1)；Valve rod of the valve rod fixing sleeve (10) is stretched out in sap cavity (24) out equipped with one end
(13)。
7. a kind of efficient hand-held spray guns according to claim 1 or 2 or 3 or 4, which is characterized in that in the pump housing (1)
It is additionally provided with imbibition chamber (25), the imbibition chamber (25), sap cavity (24), nozzle (2) are set gradually on the same axis out, the suction
Sap cavity (25) goes out to realize connection by ball valve (14) between sap cavity (24) or close；Straight line top is equipped in the imbibition chamber (25)
Spraying liquid is pushed from imbibition chamber (25) to ball valve (14) direction, is pushed open by pushing device, the straight line thrustor reciprocating motion
Ball valve (14) enters in sap cavity (24) out.
8. a kind of efficient hand-held spray guns according to claim 7, which is characterized in that the straight line thrustor include according to
Driving mechanism (23), capacity eccentric bearing component (21) and the plunger rod (17) of secondary connection, the driving mechanism (23) drive eccentric shaft
Bearing assembly (21) movement, the capacity eccentric bearing component (21) drive plunger rod (63) to do linear reciprocation fortune in imbibition chamber (25)
It is dynamic, negative pressure is formed in imbibition chamber (25), and promotion spray coating liquor interior from the pump housing (1) external suction spraying liquid to imbibition chamber (25)
Body enters sap cavity (24) and sprays from nozzle (2).
9. a kind of efficient hand-held spray guns according to claim 1, which is characterized in that this spray gun further includes a Backpack type
Liquid storing bag, the liquid storing bag are connected to by outlet tube with the pump housing (1).
10. a kind of spraying method using the efficient hand-held spray guns as described in claims 1 or 2 or 3, which is characterized in that packet
Include following steps:
S1 spray gun starts imbibition, and plunger rod reciprocating motion forms negative pressure in the spray gun pump housing and spraying liquid is drawn into out liquid
Chamber, for nozzle without liquid out, the voltage-stablizer in pressure stabilizing cavity blocks the connector that pressure stabilizing cavity is connected to sap cavity out；
After S2 goes out the full spraying liquid of sap cavity storage, spraying liquid squeezes voltage-stablizer to form pressure drive voltage-stablizer movement, spraying
Liquid enters in the liquid storage space being connected in pressure stabilizing cavity with sap cavity out, and spraying liquid is sprayed from the nozzle of sap cavity side out, described
Voltage-stablizer generates a stable pressure for guaranteeing that nozzle persistently sprays spraying liquid to the spraying liquid in sap cavity out；
S3 closes spray gun, and spraying liquid reduces the pressure decline made to obtain in sap cavity in the sap cavity out, and the voltage-stablizer is mobile
To the position in original liquid storage space.
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| CN201910763838.9A CN110523557B (en) | 2019-08-19 | 2019-08-19 | Efficient handheld spray gun and spraying method |
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|---|---|---|---|
| CN201910763838.9A CN110523557B (en) | 2019-08-19 | 2019-08-19 | Efficient handheld spray gun and spraying method |
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| CN110523557B CN110523557B (en) | 2022-03-08 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330756A (en) * | 2020-04-17 | 2020-06-26 | 中船黄埔文冲船舶有限公司 | Spray gun for ship coating operation |
| CN112206448A (en) * | 2020-09-23 | 2021-01-12 | 诸佳枫 | Water spraying gun head capable of reducing noise to the maximum extent during water spraying |
| CN112974067A (en) * | 2020-04-07 | 2021-06-18 | 温州盖一机械有限公司 | Mechanical equipment with drip prevention and flocculation and accessory paint spraying device and using method |
| CN113499872A (en) * | 2021-09-13 | 2021-10-15 | 江苏双聚智能装备制造有限公司 | Coating nozzle with anti-dripping function |
| CN113909017A (en) * | 2021-11-16 | 2022-01-11 | 珠海市睿涂智能科技有限公司 | Airless automatic spray gun using electromagnet to drive gun opening and closing |
| CN114832967A (en) * | 2022-07-04 | 2022-08-02 | 南通先佳精密模具有限公司 | Coating spray gun with spraying stabilizing device |
| CN116603657A (en) * | 2023-06-05 | 2023-08-18 | 浙江浩达工具制造股份有限公司 | Automatic adjust flush coater of flow |
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| CN112974067A (en) * | 2020-04-07 | 2021-06-18 | 温州盖一机械有限公司 | Mechanical equipment with drip prevention and flocculation and accessory paint spraying device and using method |
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| CN112206448A (en) * | 2020-09-23 | 2021-01-12 | 诸佳枫 | Water spraying gun head capable of reducing noise to the maximum extent during water spraying |
| CN113499872A (en) * | 2021-09-13 | 2021-10-15 | 江苏双聚智能装备制造有限公司 | Coating nozzle with anti-dripping function |
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| CN113909017A (en) * | 2021-11-16 | 2022-01-11 | 珠海市睿涂智能科技有限公司 | Airless automatic spray gun using electromagnet to drive gun opening and closing |
| CN114832967A (en) * | 2022-07-04 | 2022-08-02 | 南通先佳精密模具有限公司 | Coating spray gun with spraying stabilizing device |
| CN114832967B (en) * | 2022-07-04 | 2022-09-02 | 南通先佳精密模具有限公司 | Coating spray gun with spraying stabilizing device |
| CN116603657A (en) * | 2023-06-05 | 2023-08-18 | 浙江浩达工具制造股份有限公司 | Automatic adjust flush coater of flow |
| CN116603657B (en) * | 2023-06-05 | 2023-10-20 | 浙江浩达工具制造股份有限公司 | Automatic adjust flush coater of flow |
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| CN110523557B (en) | 2022-03-08 |
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Address after: 321000 No. 1, Shuntian Road, Xiaoshun Town, Jindong District, Jinhua City, Zhejiang Province, China (Zhejiang) Pilot Free Trade Zone (Building 8, Xiaoshun Branch, Zhejiang Huafeng Power Tools Co., Ltd.) Patentee after: Jinhua yanchuang Technology Co.,Ltd. Address before: 322000 building 7, block B, Yingcai Pioneer Park, chuojiang street, Yiwu City, Jinhua City, Zhejiang Province Patentee before: Jinhua yanchuang Technology Co.,Ltd. |
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