CN1292841C - Energy saving type gas-free spraying coater - Google Patents
Energy saving type gas-free spraying coater Download PDFInfo
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- CN1292841C CN1292841C CNB2004100776983A CN200410077698A CN1292841C CN 1292841 C CN1292841 C CN 1292841C CN B2004100776983 A CNB2004100776983 A CN B2004100776983A CN 200410077698 A CN200410077698 A CN 200410077698A CN 1292841 C CN1292841 C CN 1292841C
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- reversing
- valve
- air motor
- pressure
- booster pump
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Abstract
The present invention relates to an energy saving type airless sprayer. A pneumatic motor adopts a pressure relief type reversing mechanism to reverse. The reversing mechanism comprises two quick relief valves, an independent pressure relief type integrated reversing module and two air passages, wherein the pressure relief type integrated reversing module is composed of a gas storage reversing chamber, a reversing piston valve and two independent reversing slide valves. The two air passages are communicated with the two quick relief valves and the reversing piston valve which is positioned between the two reversing slide valves. The two reversing slide valves are respectively arranged on two air inlet and exhaust ports and two air exhaust outlets. The two reversing slide valves controls the air intake and the air exhaust of the upper end and the lower end of a cylinder of the pneumatic motor through the linkage of the reversing piston valve. The sprayer of the present invention has the characteristics of little air consumption, high pressure, stable working pressure, small pulse, large power and long service life, and enhances and guarantees the coating quality.
Description
Technical field
The present invention relates to a kind of airless sprayer, be used for the airless spraying of water paint and all kinds of high viscosity, extraordinary oil paint and conventional oil coating.
Background technology
At present, the external various flush coaters of producing are generally mechanical commutation device, and its characteristics are that volume is big, complex structure, and manufacture difficulty is big.The flush coater of domestic production, as ZL97237429.9 disclosed " a kind of pneumatic airless sprayer ", all adopt CN87215005U disclosed " a kind of gas is joined the reversing arrangement technology ", though its structure is light, but have complex structure equally, make the big problem of difficulty of processing, and the reversing arrangement of flush coater all there is long intake and exhaust channel both at home and abroad, air consumption is big, and pulse is arranged during commutation.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, air consumption is little, operating pressure is high, and flow is big, stable and reliable working performance and long energy saving type gas-free spraying coater of life-span.
For reaching above-mentioned purpose, a kind of energy saving type gas-free spraying coater provided by the invention, comprise air motor, trolley frame, gas handling system, the hydraulic booster pump, intake system, high-pressure hose, spray gun and filter, wherein intake system is connected with the hydraulic booster pump, spray gun is connected with high-pressure hose, high-pressure hose is connected with the hydraulic booster pump by filter, gas handling system, the hydraulic booster pump is connected with air motor respectively, these devices all are placed on the trolley frame, it is characterized in that air motor adopts the pressure-releasing type changement to commutate, described changement comprises two quick-discharging valves, the independently integrated inverting module of pressure-releasing type and two gas circuits, wherein the integrated inverting module of pressure-releasing type is by the gas storage chamber of commutating, reversing piston valve and two independently reversing slide valve form, article two, gas circuit is communicated with two quick-discharging valves and reversing piston valve, the reversing piston valve is positioned between two reversing slide valves, two reversing slide valves are separately positioned on two portings of air motor, on two exhaust outlets, two reversing slide valves are controlled the air inlet and the exhaust of the cylinder upper and lower side of air motor by reversing piston valve interlock.
Air motor of the present invention adopts the pressure-releasing type changement to commutate.At present, domestic most high pressure airless spray equipments all adopt the pilot-operated type reversing arrangement to commutate, pilot-operated type commutation principal character is to have a main gas circuit to lead to pilot valve, during work, the cylinder piston operation touches pilot valve, and pilot valve is opened, by the past reversing piston one side injecting compressed air of another gas circuit of carefully growing, opposite side has an open to atmosphere micropore exhaust, the reversing piston motion, thus promote the reversal valve commutation.And the pressure-releasing type changement of air motor of the present invention is made up of quick-discharging valve, commutation air storage chamber, reversing piston valve, two reversing slide valves and the gas circuit that is communicated with quick-discharging valve and reversing piston.After air motor starts ventilation, reversing piston valve two ends and gas storage commutation chamber are full of compressed air, the quick-discharging valve is in closed state under spring and gas pressure, two interlock guiding valves are under the back pressure effect, press to slide block, because two guiding valves and the design of cylinder upper and lower cavity inlet and outlet mouth interlocking, in what position, two guiding valves must one be positioned at the air inlet position regardless of reversing piston, another is positioned at the exhaust position, and cylinder is started working.When the cylinder piston upstream or downstream are closed on the position, dead point, touch the quick-discharging valve, reversing piston one end decompression, the piston motion drives guiding valve and realizes commutation, when cylinder piston leaves the dead-centre position, the quick-discharging valve cuts out under spring and gas pressure, reversing piston valve pressure at two ends balance keeps motionless under sealing ring and the effect of guiding valve frictional force, reversing piston valve and another quick-discharging valve repeat above-mentioned action and realize the other direction commutation when cylinder piston moves to another position, dead point.Compare with the pilot-operated type reversing arrangement, pressure-releasing type changement gas circuit is simpler, lead to fast pressure relief except that reversing piston valve two ends and put unloading the pressure gas channel of valve, remaining is all realized in commutate indoor perforate of gas storage, the power gas source of control and executive component does not need to pass through long pipeline, delicate structure, it is simple to make processing, move fasterly, more can reduce the coating operating pressure pulse that the pneumatic circuit commutation of air motor causes moment, reduce idle air consumption in the air flue, and the valve body and the seal between the spool of pilot-operated type reversing arrangement often are in one-sided pressured state, once leaking appears in seal, then commutation can not be carried out, and normal the appearance crashes.And the reversing piston valve body of pressure-releasing type changement and the seal between the spool often are in the equal pressure condition in both sides except that the moment of commutating, so the performance of pressure-releasing type changement is more stable, use seal life longer.Even the pressure-releasing type changement has minute leakage everywhere except that the quick-discharging valve, do not influence the commutation action yet and carry out, lead to the leakage and the fault of the easier discovery decision mechanism appearance of release floss hole energy of atmosphere, easy to maintenance.
The tight-lipped cylinder outer wall of the inlet and outlet of air motor of the present invention by air motor, channel design is short and flat, compressed air is at the gas storage little voltage stabilizing bag of indoor formation that commutates, compressed air turnover cylinder only need pass casing wall, shortened the work gas circuit, make inlet and outlet more smooth and easy, quick, the pulse and the idle compressed-air actuated consumption in long air flue that have occurred because of work gas circuit length when having reduced the air motor commutation, wide and the flat road of losing heart reduces physical dimension, almost channel-less exhaust simultaneously effectively reduces frost and takes place.
The piston of air motor of the present invention adopts the macromolecular material manufacturing, and both ends of the surface and cylinder chamber inner face closely cooperate, and there is chamfering outer, end face both sides.This structure has alleviated weight, dwindled the idle space in the cylinder, saved the compressed air consumption, two chamfers make compressed-air actuated active force momentary action that the piston commutation time enters on piston, the coating operating pressure pulse that the pneumatic circuit commutation moment that has reduced air motor of maximum possible causes.
Adopt two y-type seal rings to seal between the valve body of reversing piston valve of the present invention and the spool, valve body adopts the macromolecular material manufacturing, and structure is slim and graceful.
The pump housing of hydraulic booster pump of the present invention adopts the manufacturing of corrosion-resistant and wear-resisting high rigidity high chromium-stainless steel material, can effectively prevent coating to the pump housing inwall form wearing and tearing and corrosion, do not need electroplated coating, easy to process, long service life is fit to comprise nearly all oil paint of water paint.The piston rod surface of hydraulic booster pump scribbles abrasion-proof ceramic coat, and than hard chrome plating coating commonly used, thickness is big, and is strong with the base material adhesion, anti-wear performance and decay resistance height.
The modification reinforced TFE is all adopted in sealing between sealing between the piston rod of the present invention and the pump housing and the plunger valve body and the pump housing, the composite seal structure that wavy spring pad and polyformaldehyde are formed, the common polytetrafluoroethylene (PTFE) that modification reinforced TFE ratio is used always is in hardness, creep resistance, abrasion performance, all there is raising the thermal conductivity aspect, polyformaldehyde has favorable rigidity, anti-solvent and anti-wear performance, this kind combined sealing structure can effectively overcome in the universal lacquer hermetically-sealed construction, as full teflon seal structure or ox-hide and polytetrafluoroethylene (PTFE) combination sealing, abrasion are high, shape-retaining force is poor, creep takes place, destroyed and the leakage problem that takes place of ox-hide swelling binding agent adhesion in solvent, longer service life.Add the wavy spring pad and can prevent that combined sealing structure from returning pine on the one hand, can when sealing part abrasion, provide again to compress compensation, more reliable than simple screw-threaded coupling commonly used, than little, can reduce complete machine size and weight with column type compression spring structure size.
The check valve of the plunger valve body of hydraulic booster pump of the present invention is contained in plunger base, and establish spring to compress the supercharging spool, the impulse force that this kind structure makes spool can utilize coating to reflux when flush coater commutates makes the sealing of spool returning quickly, greatly reduced the coating operating pressure pulse that commutation moment can not fast sealing causes coating to reflux and cause because of check valve, simultaneously, because check valve is contained in the bottom of plunger valve body, make the coating that enters in the coating cylinder to lower nip the time as much as possible be pressed into high pressure chest, dwindled the suction chamber space, reduced the interior coating of flow channel space and be pressurized to the required strength energy loss of high pressure by negative suction repeatedly.
The suction valve body of hydraulic booster pump of the present invention self has guide function, suck the spool ascender when sucking coating and can give prominence to external of inlet valve, this kind structure makes under the same aperture condition of inlet valve, shorten in inlet valve internal guide height and flow channel length space, plunger depression on earth the time and the distance that sucks between the spool extremely short, dwindled the suction chamber space equally, also reduced the interior coating of flow channel space and be pressurized to the required strength energy loss of high pressure by negative suction repeatedly.Simultaneously,, when sucking coating, under the up same travel condition of plunger, can form bigger negative pressure, be beneficial to coating and suck because the suction chamber space reduces.
The energy-conservation airless sprayer of the present invention, done the many places improvement at the weak link of present airless sprayer both domestic and external, every technical performance is obviously improved, have in light weight, characteristics such as air consumption is little, operating pressure is high, flow is big, operating pressure is steady, pulsation is little, easy to use, life-span is long help improving and guaranteeing coating quality.
Description of drawings
Fig. 1 is a complete machine structure schematic diagram of the present invention;
Fig. 2 is a main machine structure schematic diagram of the present invention;
Fig. 3 is the hermetically-sealed construction enlarged diagram of the I place hydraulic booster pump pump housing and piston rod among Fig. 2;
Fig. 4 is an inlet valve body structure enlarged diagram in II place among Fig. 2;
Fig. 5 is an air motor pressure-releasing type changement structure chart;
Fig. 6 is air motor pressure-releasing type commutation control principle figure.
The specific embodiment
Shown in Fig. 1～5, energy saving type gas-free spraying coater of the present invention, comprise air motor 1, trolley frame 2, gas handling system 3, hydraulic booster pump 4, intake system 5, high-pressure hose 6, spray gun 7 and filter 8, wherein intake system 5 is connected with hydraulic booster pump 4, spray gun 7 is connected with high-pressure hose 6, high-pressure hose 6 is connected with hydraulic booster pump 4 by filter 8, and gas handling system 3, hydraulic booster pump 4 are connected with air motor 1 respectively, and these devices all are placed on the trolley frame 2.Air motor 1 of the present invention adopts the pressure-releasing type changement to commutate, form by cylinder 28 and changement, changement comprises two quick-discharging valves 20, the independently integrated inverting module of pressure-releasing type and two gas circuits 31 and 32, wherein the integrated inverting module of pressure-releasing type is by gas storage commutation chamber 26, reversing piston valve 22 and two independently reversing slide valve 27 form, article two, gas circuit 31 and 32 is communicated with two quick-discharging valves 20 and reversing piston valve 22 respectively, reversing piston valve 22 is between two reversing slide valves 27, two reversing slide valves 27 are separately positioned on two portings 30 of air motor 1, on two exhaust outlets 29, two reversing slide valves 27 are controlled the air inlet and the exhaust of cylinder 28 upper and lower sides of air motor 1 by reversing piston valve 22 interlocks.The porting 30 of air motor 1 cylinder 28 and exhaust outlet 29 are near cylinder 28 outer walls of air motor 1, and channel design is short and flat.The both ends of the surface of the piston 21 of air motor 1 cylinder 28 and cylinder 28 chamber inner faces closely cooperate, and outer, end face both sides has chamfering, and piston 21 adopts the macromolecular material manufacturing.Adopt two y-type seal rings 24 to seal between the valve body 25 of reversing piston valve 22 and the spool 23, valve body 25 adopts the macromolecular material manufacturing.The surface of the piston rod 16 of hydraulic booster pump 4 has abrasion-proof ceramic coat, the pump housing 15 adopts corrosion-resistant and wear-resisting high chromium-stainless steel material manufacturing.The composite seal structure that sealing between the piston rod 16 of hydraulic booster pump 4 and the sealing between the pump housing 15 and the plunger valve body 13 and the pump housing 15 adopts modification reinforced TFE 19, polyformaldehyde 18 and wavy spring pad 17 to form.The check valve 11 of the plunger valve body 13 of hydraulic booster pump 4 is contained in the bottom of plunger valve body 13, and establishes spring 14 to compress supercharging spool 12.The suction valve body 10 of hydraulic booster pump 4 has guide function, sucks spool 9 ascenders during work and can give prominence to suction valve body 10 outsides.
Shown in Fig. 5,6, the pressure-releasing type changement of air motor of the present invention is by quick-discharging valve 20, commutation air storage chamber 26, reversing piston valve 22, two reversing slide valves 27 and be communicated with quick-discharging valve 20 and form with the gas circuit 31 and 32 of reversing piston 22.After air motor 1 starts ventilation, reversing piston valve 22 two ends and gas storage commutation chamber 26 are full of compressed air, quick-discharging valve 20 is in closed state under spring and gas pressure, two interlock guiding valves 27 are under the back pressure effect, press to slide block, because two air inlets 30 of two guiding valves 27 and cylinder 28 upper and lower cavities, two exhaust outlet 29 interlocking designs, no matter reversing piston valve 22 is in what position, two guiding valves 27 must one be positioned at the air inlet position, another is positioned at the exhaust position, and cylinder 28 is started working.When cylinder piston 21 upstream or downstream are closed on the position, dead point, touch quick-discharging valve 20, reversing piston valve 22 1 end decompressions, piston 21 motions, drive guiding valve 27 and realize commutation, when cylinder piston 21 leaves the dead-centre position, quick-discharging valve 20 cuts out under spring and gas pressure, reversing piston valve 22 pressure at two ends balances, keep motionless under sealing ring and guiding valve 27 frictional force effects, reversing piston valve 22 and another quick-discharging valve 20 repeat above-mentioned action and realize the other direction commutation when cylinder piston 21 moves to another position, dead point.
Claims (8)
1, a kind of energy saving type gas-free spraying coater, comprise air motor (1), trolley frame (2), gas handling system (3), hydraulic booster pump (4), intake system (5), high-pressure hose (6), spray gun (7) and filter (8), wherein intake system (5) is connected with hydraulic booster pump (4), spray gun (7) is connected with high-pressure hose (6), high-pressure hose (6) is connected with hydraulic booster pump (4) by filter (8), gas handling system (3), hydraulic booster pump (4) is connected with air motor (1) respectively, these devices all are placed on the trolley frame (2), it is characterized in that air motor (1) adopts the pressure-releasing type changement to commutate, described changement comprises two quick-discharging valves (20), the independently integrated inverting module of pressure-releasing type and two gas circuits (31,32), wherein the integrated inverting module of pressure-releasing type is by the gas storage chamber (26) of commutating, reversing piston valve (22) and two independently reversing slide valve (27) form, article two, gas circuit (31,32) be communicated with two quick-discharging valves (20) and reversing piston valve (22), reversing piston valve (22) is positioned between two reversing slide valves (27), two reversing slide valves (27) are separately positioned on two portings (30) of air motor (1), on two exhaust outlets (29), two reversing slide valves (27) are by the air inlet and the exhaust of cylinder (28) upper and lower side of reversing piston valve (22) interlock control air motor (1).
2, airless sprayer as claimed in claim 1 is characterized in that the porting (30), exhaust outlet (29) of air motor (1) cylinder (28) outer wall near air motor (1), and channel design is short and flat.
3, airless sprayer as claimed in claim 1 is characterized in that the both ends of the surface and cylinder (28) the chamber inner face of the piston (21) of air motor (1) closely cooperates, and outer, end face both sides has chamfering, and piston (21) adopts the macromolecular material manufacturing.
4, airless sprayer as claimed in claim 1 is characterized in that adopting between the valve body (25) of reversing piston valve (22) and the spool (23) two y-type seal rings (24) to seal, and valve body (25) adopts the macromolecular material manufacturing.
5, airless sprayer as claimed in claim 1 is characterized in that the surface of the piston rod (16) of hydraulic booster pump (4) has abrasion-proof ceramic coat, and the pump housing (15) adopts the manufacturing of corrosion-resistant and wear-resisting high chromium-stainless steel material.
6, airless sprayer as claimed in claim 1 is characterized in that the piston rod (16) of hydraulic booster pump (4) and the composite seal structure that the sealing between the sealing between the pump housing (15) and the plunger valve body (13) and the pump housing (15) adopts modification reinforced TFE (19), polyformaldehyde (18) and wavy spring pad (17) to form.
7, airless sprayer as claimed in claim 1 is characterized in that the check valve (11) of the plunger valve body (13) of hydraulic booster pump (4) is contained in the bottom of plunger valve body (13), and establishes spring (14) to compress supercharging spool (12).
8, airless sprayer as claimed in claim 1 is characterized in that the suction valve body (10) of hydraulic booster pump (4) has guide function, sucks spool (9) ascender during work and can give prominence to suction valve body (10) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100776983A CN1292841C (en) | 2004-12-28 | 2004-12-28 | Energy saving type gas-free spraying coater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100776983A CN1292841C (en) | 2004-12-28 | 2004-12-28 | Energy saving type gas-free spraying coater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1631552A CN1631552A (en) | 2005-06-29 |
| CN1292841C true CN1292841C (en) | 2007-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100776983A Expired - Fee Related CN1292841C (en) | 2004-12-28 | 2004-12-28 | Energy saving type gas-free spraying coater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1292841C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502823B (en) * | 2009-03-12 | 2010-09-29 | 袁铁柱 | Non-gaseous coating apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5295626A (en) * | 1993-05-05 | 1994-03-22 | Rick Mirabito | Spray apparatus for an airless spray system |
| CN2204201Y (en) * | 1994-07-14 | 1995-08-02 | 纪尔非 | High-pressure gasless spray-coating equipment |
| CN2219759Y (en) * | 1994-05-11 | 1996-02-14 | 四川长江机械厂 | Portable pneumatic airless spraying apparatus |
| US5623886A (en) * | 1996-01-18 | 1997-04-29 | Marangi; Rudy | Apparatus and method for injecting prehydrated hydrophilic polymer material into the ground |
| CN2317954Y (en) * | 1997-07-22 | 1999-05-12 | 四川长江机械厂 | Pneumatic airless spraying machine |
| US5984646A (en) * | 1997-04-11 | 1999-11-16 | Accuspray, Inc. | Hydraulic motor for use with airless paint sprayer system |
| CN2759611Y (en) * | 2004-12-28 | 2006-02-22 | 广州珠江物资集团有限公司 | Energy-saving type gas-less painting machine |
-
2004
- 2004-12-28 CN CNB2004100776983A patent/CN1292841C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5295626A (en) * | 1993-05-05 | 1994-03-22 | Rick Mirabito | Spray apparatus for an airless spray system |
| CN2219759Y (en) * | 1994-05-11 | 1996-02-14 | 四川长江机械厂 | Portable pneumatic airless spraying apparatus |
| CN2204201Y (en) * | 1994-07-14 | 1995-08-02 | 纪尔非 | High-pressure gasless spray-coating equipment |
| US5623886A (en) * | 1996-01-18 | 1997-04-29 | Marangi; Rudy | Apparatus and method for injecting prehydrated hydrophilic polymer material into the ground |
| US5984646A (en) * | 1997-04-11 | 1999-11-16 | Accuspray, Inc. | Hydraulic motor for use with airless paint sprayer system |
| CN2317954Y (en) * | 1997-07-22 | 1999-05-12 | 四川长江机械厂 | Pneumatic airless spraying machine |
| CN2759611Y (en) * | 2004-12-28 | 2006-02-22 | 广州珠江物资集团有限公司 | Energy-saving type gas-less painting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1631552A (en) | 2005-06-29 |
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Granted publication date: 20070103 Termination date: 20100128 |