CN107716151B

CN107716151B - Novel spray coating method

Info

Publication number: CN107716151B
Application number: CN201711085118.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Shandong Zhongchuangxin Material Technology Co ltd
Current assignee: Shandong zhongchuangxin Material Technology Co.,Ltd.
Priority date: 2017-11-07
Filing date: 2017-11-07
Publication date: 2020-11-24
Anticipated expiration: 2037-11-07
Also published as: CN107716151A

Abstract

The invention discloses a spray coating method using a novel spray coating device, wherein the spray coating device comprises a base provided with a liquid storage tank and a vertical sliding seat, an aerosol valve connected with a spray gun head is arranged on the liquid storage tank, a first transmission shaft connected with a first servo motor and a first support arm is arranged on the vertical sliding seat, the axis of the first transmission shaft is consistent with the extending direction of the first support arm, a second transmission shaft connected with a second support arm is arranged at the end part of the first support arm, and the spray gun head is arranged at the end part of the second support arm; be equipped with novel first locking structure between first support arm and the vertical slide, be equipped with second locking structure between first support arm and the second support arm, still be provided with unique design's connector, spraying passageway and shutoff ring etc.. The device obtains a plurality of beneficial technical effects through unique structural design and a plurality of improvements, and has good application prospect and industrial production potential in a plurality of fields.

Description

Novel spray coating method

Technical Field

The invention relates to a workpiece surface treatment method, in particular to a novel spray coating method, and belongs to the technical field of spraying, coating methods and the like.

Background

Spray coating refers to a coating method in which a liquid to be sprayed or atomized is dispersed into uniform and fine droplets by means of pressure or centrifugal force by a spray gun or a disc atomizer, and is uniformly applied to the surface of an object to be coated.

The spray painting operation has high production efficiency, is very suitable for manual operation and industrial automatic production, has wide application range, can be applied to a plurality of technical fields such as hardware, plastic, furniture, military industry, ships, automobile manufacturing, mechanical manufacturing and the like, and is the most common coating mode in current application.

Due to the widespread use and the necessity of spray painting, a great deal of intensive research has been carried out on spray painting devices or equipment and results have been obtained, for example:

CN102784735A discloses an automobile brake disc automatic spraying device belongs to automatic spraying device field, comprises work piece chassis, work piece motor, work piece bracing piece, sways the motor board, sways motor, spray gun, long backup pad, short coupling shaft, short backup pad, preceding lead screw motor, back lead screw motor, motor backup pad, long coupling shaft, bottom plate, its characterized in that: the workpiece motor is arranged in the workpiece chassis, a workpiece supporting rod is arranged on the workpiece motor, and a brake disc can be placed on the workpiece supporting rod; the motor supporting plate is connected with the bottom plate through a long connecting shaft, a lead screw of the front lead screw motor is installed in a lead screw nut at the lower end of the short supporting plate, a lead screw of the rear lead screw motor is installed in a lead screw nut at the lower end of the long supporting plate, the short supporting plate and the long supporting plate are connected together through the short connecting shaft, the swing motor is installed on a swing motor plate, the swing motor plate is installed at the upper end of the long supporting plate, and the spray gun is installed on a shaft of the swing motor. The device can realize the automatic spraying to the car brake disc.

CN103639087A discloses pneumatic arm straight line spraying device, including support and spraying device, be provided with the push rod cylinder in the support upper end, the trachea and the push rod cylinder intercommunication of push rod cylinder, spraying device sets up the tip at the push rod cylinder, spraying device's material pipe and spraying device intercommunication, solenoid valve on the trachea and the solenoid valve on the material pipe all are connected with the controller. The push rod cylinder is controlled by the controller to move forwards towards the direction of the die, the material is sprayed out of the spray head of the spraying device after the push rod cylinder reaches a preset position, the device can be matched with a die rotating machine for automatic production, the labor intensity is reduced, and the spraying surface can cover the place which can not be sprayed manually. And the spray head is adjusted according to different moulds, so that the spraying surface is uniform, and the work is stable and reliable.

CN105772293A discloses a synchronous spraying device for large machinery, which comprises a plurality of movable bases (1), wherein each movable base (1) is provided with a six-axis joint robot, and the tail end of each six-axis joint robot is provided with a spray gun; the front end of the moving base (1) is provided with a steel plate (2), the front end of the moving base (1) is also horizontally provided with a piston cylinder (3), the outer end of a piston rod of the piston cylinder (3) is flush with the outer side of the steel plate (2) when the piston rod retracts, and the rear end of the moving base (1) is provided with an electric control magnetic attraction device (4); the movable base (1) is mutually attracted and sequentially connected in series to form an integral movable platform through the steel plate (2) and the electric control magnetic attraction device (4). The device is provided with an integral moving platform formed by sequentially connecting a plurality of moving bases in series, so that all six-axis joint robots can be synchronously sprayed, the problem of interference does not exist, and the consistency of the spraying quality of large mechanical parts can be ensured.

CN106733345A discloses an antirust oil spraying device, especially relates to a quick antirust oil spraying device for machine parts. The invention aims to solve the technical problem of providing a quick antirust oil spraying device for mechanical parts, which has the advantages of uniform spraying, material saving and convenient operation. In order to solve the technical problem, the invention provides a quick antirust oil spraying device for mechanical parts, which comprises a bottom plate, a left frame, a box body, a water pipe, a first one-way valve, a cylinder body, a piston, a hose, a processing frame, a right frame, a screen plate, a spray head, a second one-way valve, a top plate and the like; the welding of bottom plate top left side has left side frame, and the welding of left side frame right side upper portion has first dead lever, is connected with the motor through bolted connection's mode on the first dead lever. The device has reached the even, material saving of spraying, convenient operation's effect to low in manufacturing cost, rational in infrastructure, easy to maintain maintains, convenient to use reduces the input of manpower and materials, has improved work efficiency.

CN107225065A discloses a spraying device, especially relates to a spare part coating spraying device for agricultural machine. It comprises a bracket and the like; the left side is connected with the spraying case on the support, and the inclined to one side sub-unit connection has the filter screen in the spraying case, and the right side middle part of spraying case is connected with rabbling mechanism, and the right side of rabbling mechanism is connected with the left wall of support, and the upper portion of spraying case is equipped with spraying mechanism, and the anterior left side of spraying case is connected with the chamber door through hinge connection's mode. The device has a plurality of excellent effects such as spraying is even, quick.

CN201768885U discloses a servo spraying device, which comprises a spraying control device and a spraying mechanism, wherein the spraying mechanism comprises a frame, a horizontal mechanical arm driven by a servo motor and capable of sliding horizontally is installed on the frame, a longitudinal mechanical arm driven by the servo motor and capable of sliding vertically is installed at the front end of the horizontal mechanical arm, and spray heads for spraying to molds on two sides are installed at the lower end of the longitudinal mechanical arm. The working processes of the transverse mechanical arm, the longitudinal mechanical arm and the spray heads are controlled by the spraying control mechanism through programs, the automation degree is high, the mechanical action is accurate and reliable, the spray heads spraying to the molds on two sides are controlled by the programs and the electromagnetic valves, and the spraying quantity and the spraying quality are consistent and controllable.

CN203830214U discloses a mechanical workpiece spraying device, which comprises a base, wherein a spraying chamber is arranged on the base, a liquid supply cavity is arranged at the upper part of the spraying chamber, oil pipes are arranged at two side positions of the liquid supply cavity, and a material supply cavity is arranged at the upper part of the liquid supply cavity; a blast pipe is arranged in the oil pipe, the upper part of the blast pipe is connected with a blast branch pipe, and the middle part of the blast branch pipe is provided with a blast pipe interface; the lower part of the air pipe connector is connected with a blower; the lower part of the blower is provided with an air blowing port; the side of the oil pipe is provided with a liquid supply pipe, the other end of the liquid supply pipe is connected with a spraying cavity, and the side of the spraying cavity is provided with a spray head. The device can effectively spray mechanical workpieces, materials are supplied by a pipeline from top to bottom, the compressed air is blown out for spraying, a fan is arranged at the top of the spraying chamber to blow air to accelerate the spraying and drying effects, a recovery cavity is arranged in the base to recover the materials dropped by spraying, the recycling is realized, and the spraying cost is reduced

CN205628369U discloses a robot mechanical arm spraying device, which comprises a fixed plate, wherein a spraying disc is arranged on the fixed plate, a support column is arranged on the fixed plate, and the spraying disc is arranged on the end part of the support column; the fixed plate is provided with a supporting pipeline, a spraying pipeline is arranged between the end parts of the supporting pipeline, the interior of the spraying pipeline is of a cavity structure, and the lower part of the spraying pipeline is provided with a plurality of spraying holes; the spraying pipeline is provided with a supporting plate, a fixing plate is arranged between the end parts of the supporting plate, a spraying machine is arranged on the fixing plate, the lower part of the spraying machine is connected with a spraying pipe, a control switch is arranged on the spraying pipe, and the lower end of the spraying pipe is communicated with the spraying pipeline. The spraying machine can convey the spraying paint into the spraying pipeline through the spraying pipe and spray the spraying paint onto the outer surface of the robot mechanical arm through the spraying holes of the spraying pipeline, so that the robot mechanical arm can be conveniently and quickly sprayed; and the spraying pipe can be conveniently controlled through the control switch, so that the operation is convenient.

CN205253448U discloses an environment-friendly spraying device for machining products, which comprises a bottom supporting cavity, wherein the left side and the right side of the upper part of the bottom supporting cavity are respectively provided with a left spraying cavity and a right spraying cavity, the lower parts of the left spraying cavity and the right spraying cavity are respectively provided with a left filter plate and a right filter plate, the lower parts of the left filter plate and the right filter plate are respectively provided with a left liquid accumulation cavity and a right liquid accumulation cavity, the lower parts of the left liquid accumulation cavity and the right liquid accumulation cavity are respectively connected with a left liquid collecting pipe and a right liquid collecting pipe, the right side of the left liquid collecting pipe and the left side of the right liquid collecting pipe are connected with a; a cushion block is arranged between the upper portions of the left spraying cavity and the right spraying cavity, a spraying liquid cavity is arranged on the upper portion of the cushion block, and a liquid supply pipe is connected to the upper portion of the spraying liquid cavity. The device can carry out environmental protection spraying to the machining product effectively and handle, conveniently provides the environmental protection spraying mode, utilizes the fan to blow off spraying liquid to conveniently collect unnecessary spraying liquid, realize energy-concerving and environment-protective recycling, excellent in use effect.

As described above, the prior art discloses various spray coating apparatuses and spray coating methods, which can be applied to various specific production fields.

On the other hand, in many fields, for example, in the fields of automobile manufacturing, small hardware manufacturing, large industrial machine manufacturing, etc., the machine surface or the inner screen covering member is required to be subjected to the spray coating treatment, and the industrial automation production is often used because of a large production amount and a bad coating environment. In spray coating operations, it is often necessary to place the cover on a tool with the spray gun on one side or above the cover to spray in a straight or vertical direction, with the spray gun blowing generally perpendicular to the cover surface. However, many mechanical parts have uneven surface shapes, and when the mechanical parts encounter a bent or arc surface part, the blowing direction of the spray gun cannot be perpendicular to the surface of the covering part, so that the thickness of the sprayed paint surface is not uniform, and the use and practical effect are affected.

Therefore, the development of a novel spray coating method with strong universality not only has urgent research value, but also has good economic benefit and industrial application potential, which is the basis and the place where the invention can be completed.

Disclosure of Invention

The present inventors have made intensive and intensive studies with a view to finding a novel spray coating device and a spray coating method using the same, and overcoming the above-identified drawbacks of the existing spray coating devices and methods, and have completed the present invention after having made a great deal of creative efforts.

Specifically, the technical problems to be solved by the present invention are: there is provided a spray coating method which improves the spray coating effect by using a novel spray coating device (of course, it has many other advantages described below).

In order to solve the technical problems, the technical scheme of the invention is as follows: there is provided a spray coating method using a spray coating device including a base, a liquid storage tank is arranged on the base, an aerosol valve is arranged on the liquid storage tank, the aerosol valve is connected with the spray gun head through a corrugated pipe, a vertical sliding seat driven by a first power device is vertically and slidably arranged on the base, a first transmission shaft is rotatably arranged on the vertical sliding seat, one end of the first transmission shaft is connected with the first servo motor, the other end of the first transmission shaft is fixedly connected with the first support arm, the axial line of the first transmission shaft is consistent with the extending direction of the first support arm, a second transmission shaft driven by a second servo motor is rotatably arranged at the end part of the first support arm and is fixedly connected with the second support arm, the axis of the second transmission shaft is perpendicular to the axis of the first transmission shaft, and the spray gun head is fixedly arranged at the end part of the second support arm; a first locking structure is arranged between the first support arm and the vertical sliding seat, and a second locking structure is arranged between the first support arm and the second support arm;

two liquid storage tanks are arranged, two spray gun heads are arranged, and the two spray gun heads are both arranged at the end part of the second support arm;

the two spray gun heads are inserted into a connector, the connector is provided with a spray channel for accommodating the two spray gun heads, the two spray channels penetrate through the connector, and the two spray channels are not communicated with each other;

since only one coating material is needed in actual use sometimes, and at the same time, another coating channel needs to be disconnected, it is a common practice at present that the outlet end of the aerosol valve is closed, however, the distance from the aerosol valve to the spray gun head is long, and another coating material still remains in the bellows in the distance, which causes color difference during coating and affects the coating effect.

The conventional solution currently used is to continue to introduce the paint to be sprayed for a period of time until the remaining additional paint is completely discharged, and then to spray the object to be sprayed.

However, this results in a waste of coating (a large amount of coating is accumulated over a long period of time, which causes a serious waste), a reduction in production efficiency, a failure to realize continuous and automatic operation, and an increase in production cost.

Therefore, the inventor carries out further intensive research on the defects, thereby making a further brand-new improvement and solving the defects as follows:

in the spray coating method of the present invention, as a further improvement, and as a separate, preferable and improved technical means (the above conventional solution can be fully adopted, although there is some coating waste and productivity reduction), the following are specified:

the connector is characterized in that a plugging ring is arranged in the connector, the plugging ring is rotatably arranged in the connector and disconnects the two spraying channels, two spraying holes matched with the spraying channels are formed in the plugging ring, a through hole is formed in the symmetrical center line of the two spraying holes, and the diameter of the through hole is the same as that of the spraying holes.

Through the structural design, when the two spraying holes are communicated with the two spraying channels, the two spraying holes are rotated by 90 degrees (90 degrees) clockwise or anticlockwise, so that the sealing ring seals one of the spraying channels 1 and communicates the other spraying channel, the tail end of the spraying gun head is sealed, the residual coating pollution is avoided, the pre-flushing process of the coating to be sprayed in the prior art is not needed, the coating waste is avoided, and the production efficiency is improved.

The first locking structure may adopt any known conventional locking structure, such as any one of an eccentric lock, a friction lock, a collet lock, a wedge lock, etc., and those skilled in the art may select a suitable locking structure according to specific needs, which will not be described in detail herein.

However, the inventor has made further intensive studies to develop a new first locking structure, which is as follows:

in the spray coating method of the present invention, as a further improvement, and as a separate, preferred improvement technical means (the above-mentioned known prior locking structure can be fully adopted), the completely new first locking structure is as follows:

first locking structure include fixed mounting in first mount pad on the vertical slide, fixed mounting has first support seat on the first mount pad, first transmission shaft one end runs through first mount pad with first support seat just connects a servo motor, the other end of first transmission shaft runs through vertical slide and connection first support arm, be equipped with a hydraulic pressure chamber on the first support seat, sliding mounting has first piston in the first hydraulic pressure chamber, first piston with be equipped with first friction plate group between the first mount pad.

Through the structural design, when the locking is needed, hydraulic oil is filled in the first hydraulic cavity, so that the first piston tightly pushes the first friction plate group, the first friction plate group and the first mounting seat are pressed together, the rotation of the first transmission shaft is locked, and the position of the first support arm is locked.

The structures and the installation manners of the liquid storage tank and the aerosol valve can adopt any corresponding devices in the prior art, for example, the structures and the installation manners of the liquid storage tank and the aerosol valve in the publication number CN104209202A can be referred to (of course, the specific contents in other prior arts can also be referred to), and the detailed description is not repeated herein.

Wherein, through install on the liquid reserve tank aerial fog valve to paint atomizing has been realized, and can adjust aerial fog blowout pressure, has better suitability and extensive.

The specific construction of such a lance head is well known in the art and reference may be made to the specific construction of any lance head known in the art and will not be described in detail here again.

The spray valve is connected with the spray gun head through the corrugated pipe, the distance between the spray gun head and the spray valve can be changed through the connection of the corrugated pipe, the bending phenomenon is not easy to occur, and the spray valve has better adaptability.

The first support arm rotates around the axis of the first transmission shaft by the fact that the axis of the first transmission shaft is consistent with the extending direction of the first support arm.

The second support arm is fixedly connected with the second transmission shaft, the axis of the second transmission shaft is perpendicular to the axis of the first transmission shaft, and the spray gun head is fixedly installed at the end part of the second support arm, so that the second support arm rotates around the axis of the second transmission shaft, the spray gun head can swing left and right, and the vertical angle can be adjusted. Therefore, in the spraying process, the spraying angle of the spraying gun head can be adjusted along with the bending fluctuation of the surface of the workpiece, and the spraying effect is further improved.

The first locking structure is arranged, so that the first support arm and the vertical sliding seat are locked.

The first support arm and the second support arm are locked by the second locking structure, so that the stability of the spray gun head in the spraying process is ensured, and the spraying effect is improved.

The two spray gun heads can work simultaneously, spraying efficiency is improved, different coatings can be contained in the two liquid storage tanks, and the effect of double-color spraying on the surface of a workpiece is achieved.

Through the arrangement of the connector and the spraying channels, the two spraying gun heads are effectively fixed together, and the two spraying channels are enabled not to interfere with each other, so that the spraying effect and the stability are improved.

In the spray coating method of the present invention, as a further improvement, the first power unit is a motor-driven lead screw-nut mechanism.

In the spray coating method of the present invention, the second locking structure may adopt any known conventional locking structure, such as any one of an eccentric lock, a friction lock, a collet lock, a wedge lock, etc., and those skilled in the art can select a suitable locking structure according to specific needs, which will not be described in detail herein.

The inventor further intensively studies the second locking structure, so as to develop a brand new second locking structure, which is as follows:

in the spray coating method of the present invention, as a further improvement, and as a separate, preferred improvement (the above-mentioned known prior locking structure can be fully adopted), the completely new second locking structure is as follows:

the second locking structure comprises a second mounting seat fixedly mounted on the first support arm, a second supporting seat is fixedly mounted on the second mounting seat, one end of a second transmission shaft is rotatably mounted on the first support arm, the other end of the second transmission shaft penetrates through the second mounting seat and the second supporting seat and is connected with the second servo motor, a second hydraulic cavity is formed in the second supporting seat, a second piston is slidably mounted in the second hydraulic cavity, and a second friction plate group is arranged between the second piston and the second mounting seat.

Through the structural design, when the locking is needed, hydraulic oil is filled in the second hydraulic cavity, so that the second piston tightly pushes the second friction plate set, the second friction plate set and the second mounting seat are tightly pressed together, the rotation of the second transmission shaft is locked, and the position of the second support arm is locked.

It should be noted that: in the spray coating method of the present invention, it is entirely possible to employ the following combination:

1. the first locking structure and the second locking structure may employ any conventionally known locking structure.

2. The first locking structure employs the above-described entirely new first locking structure, while the second locking structure employs any conventionally known locking structure.

3. The first locking structure employs any conventionally known locking structure, while the second locking structure employs the above-described entirely new second locking structure.

4. The first locking structure and the second locking structure respectively adopt the brand new first locking structure and the brand new second locking structure.

All of these combinations are within the scope of the invention.

In the spray coating method, as a further improvement, the base is longitudinally slidably mounted on the longitudinal rail, the base is provided with rollers, and the base is connected with a second power device.

Through the structural design, the roller rolls on the longitudinal rail, so that the base is driven to move longitudinally.

The second power device can be any one of an air cylinder, a hydraulic cylinder or a lead screw and nut mechanism.

In the spray coating method, as an improvement, the vertical sliding seat is vertically and slidably mounted on a vertical support, the vertical support is transversely and slidably mounted on a transverse rail, the transverse rail is fixedly mounted on the base, and the vertical support is connected with a third power device.

As an improvement, the transverse track is a linear guide rail, and the vertical support is provided with a sliding block matched with the linear guide rail.

Wherein, the third power device can be any one of an air cylinder, a hydraulic cylinder or a lead screw and nut mechanism, and the third power device can be selected by persons skilled in the art, and will not be described in detail herein.

In the spray coating method of the present invention, as a further improvement, a support wheel driven by a fourth power device and sliding vertically is provided on the base, and a support groove for accommodating the bellows is provided on an outer circumferential surface of the support wheel.

In the spray coating method of the present invention, as a further improvement, a transition wheel driven by a fifth power device and sliding vertically is provided on the base, a transition groove for accommodating the bellows is provided on an outer circumferential surface of the transition wheel, and the transition wheel and the support wheel are arranged in a staggered manner.

In the spray coating method of the present invention, as a further improvement, the support wheel and the transition wheel are both mounted on a bearing.

As described above, the corrugated pipe can be fitted in the support groove and the transition groove by the arrangement of the support groove and the transition groove, and the corrugated pipe is prevented from deviating from the support wheel or the transition wheel during expansion and contraction, so that stable operation can be achieved.

The supporting wheel and the transition wheel are arranged on the bearing, so that the supporting wheel and the transition wheel can conveniently rotate, the corrugated pipe can be conveniently extended or shortened, and better spraying adaptability is achieved.

The fourth power device and the fifth power device may be any one of an air cylinder, a hydraulic cylinder, or a lead screw and nut mechanism, and those skilled in the art may make appropriate selections, and will not be described in detail herein.

The distance between the spray gun head and the aerosol valve is adjusted by moving the supporting wheel and the transition wheel up and down.

In the spray coating method of the present invention, as a further improvement, the bellows is sequentially wound around the supporting wheel and the transition wheel along an S-shaped trajectory.

Through such structural design, not only make the adjustment of bellows is more convenient, has still effectively avoided in the adjustment process moreover the possibility of buckling takes place for the aerial fog circulation is more smooth and easy, and then has improved the spraying effect.

In the spray coating method of the present invention, as a further improvement, a central column penetrating through the center of the plugging ring is arranged on the connector, the plugging ring is rotatably mounted on the central column, a semicircular positioning groove is formed in the plugging ring, and a positioning pin is mounted on the connector and is adapted to the positioning groove.

Through such structural design, when two the spraying hole with two when the spraying passageway all communicates, then the locating pin is located the intermediate position of constant head tank. When the plugging ring plugs one of the spraying channels, the positioning pin is just positioned at one end of the positioning groove, so that the limiting effect is achieved.

As described above, the present invention provides a spray coating method using a novel spray coating device, which has a unique structural design and various modifications, so that the spray coating method achieves at least one of the following advantageous technical effects (including the above-mentioned effects), for example:

1. because the spray gun head is installed on the vertical sliding seat through the first support arm and the second support arm, the height position of the spray gun head can be adjusted, the left position and the right position of the spray gun head can be adjusted, the angle position can be adjusted, the spray gun head can swing left and right, the adjustment of the upper angle and the lower angle can be realized, and in the spraying process, the spray gun head can adjust the spraying angle along with the bending fluctuation of the surface of a workpiece, so that the spraying effect is improved.

2. Because liquid reserve tank, spray gun head all are provided with two, have realized two spray gun head simultaneous working, have improved spraying efficiency to can also splendid attire different coatings in two liquid reserve tanks, realize the effect of the double-colored spraying of workpiece surface.

3. Because the corrugated pipe sequentially winds through the supporting wheel and the transition wheel along the S-shaped track, the corrugated pipe is more convenient to adjust, and the corrugated pipe is effectively prevented from being bent in the adjusting process, so that the aerosol circulation is smoother, and the spraying effect is further improved.

As described above, the present invention provides a novel spray coating method using a novel spray coating apparatus, which achieves a number of beneficial technical effects through a unique structural design and a number of improvements, and has a good application prospect and a good popularization potential in a number of specific industrial fields.

Drawings

FIG. 1 is a schematic structural view of a spray coating apparatus according to an embodiment of the spray coating method of the present invention;

FIG. 2 is a schematic structural view of a first lock structure in a spray coating device according to an embodiment of the spray coating method of the present invention;

FIG. 3 is a schematic structural diagram of a second locking structure in the spray coating device according to the embodiment of the spray coating method of the present invention;

FIG. 4 is a schematic view of a connector in the spray coating apparatus according to the embodiment of the spray coating method of the present invention;

FIG. 5 is a schematic view of a configuration of a packing ring in a spray coating apparatus according to an embodiment of the spray coating method of the present invention;

wherein in fig. 1 to 5, each numerical reference refers to the following specific meanings, elements and/or components, respectively.

In the figure: 1. a base, 2, a liquid storage tank, 3, an aerosol valve, 4, a corrugated pipe, 5, a spray gun head, 6, a vertical sliding seat, 7, a first support arm, 8, a second support arm, 9, a first locking structure, 901, a first mounting seat, 902, a first piston, 903, a first hydraulic cavity, 904, a first transmission shaft, 905, a first servo motor, 906, a first support seat, 907, a first friction plate group, 10, a second locking structure, 1001, a second mounting seat, a second piston, 1003, a second hydraulic cavity, 1004, a second transmission shaft, a second servo motor, 1006, a second support seat, 1007, a second friction plate group, 11, a longitudinal rail, 12, a vertical support, 13, a first power device, 14, a support wheel, 15, a transition wheel, 16, a blocking ring, 1601, a spraying hole, 1602, a through hole, 1603, a positioning groove, 17, a connector, 1701, a spraying channel, 1702, 1005, 1703. and a positioning pin.

Detailed Description

The invention is further illustrated with reference to the following figures and examples. The use and purpose of these exemplary embodiments are to illustrate the present invention, not to limit the actual scope of the present invention in any way, and not to limit the scope of the present invention in any way.

As shown in fig. 1, the present invention provides a novel spray coating method, which uses a spray coating device, the spray coating device includes a base 1, a liquid storage tank 2 is installed on the base 1, an aerosol valve 3 is installed on the liquid storage tank 2, the aerosol valve 3 is connected with a spray gun head 5 through a bellows 4, a vertical sliding seat 6 driven by a first power device 13 is vertically and slidably installed on the base 1, a first transmission shaft 904 is rotatably installed on the vertical sliding seat 6, one end of the first transmission shaft 904 is connected with a first servo motor 905, the other end is fixedly connected with a first support arm 7, the axis of the first transmission shaft 904 is consistent with the extending direction of the first support arm 7, a second transmission shaft 1004 driven by a second servo motor 1005 is rotatably installed on the end of the first support arm 7, the second transmission shaft 1004 is fixedly connected with a second support arm 8, the axis of the second transmission shaft 1004 is perpendicular to the axis of the first transmission shaft 904, the spray gun head 5 is fixedly arranged at the end part of the second support arm 8; a first locking structure 9 is arranged between the first support arm 7 and the vertical sliding seat 6, and a second locking structure 10 is arranged between the first support arm 7 and the second support arm 8;

two liquid storage tanks 2 are arranged, two spray gun heads 5 are arranged, and the two spray gun heads 5 are both arranged at the end part of the second support arm 8;

as shown in fig. 4 and 5 together, two spray gun heads 5 are each inserted into a connector 17, the connector 17 having spray channels 1701 for receiving the two spray gun heads 5, both spray channels 1701 extending through the connector 17, and the two spray channels 1701 not being in communication;

since only one coating material is sometimes needed in actual use, and the other coating passage 1701 needs to be disconnected, it is common practice at present to close the outlet end of the aerosol valve 3, however, the distance from the aerosol valve 3 to the spray gun head 5 is long, and another coating material still remains in the bellows 4, so that color difference is caused during spraying, and the spraying effect is affected.

as a further improvement, and as a separate, preferred technical improvement (the above-mentioned conventional solutions can be fully adopted, although there is some coating waste and productivity reduction), the following are specified:

a blocking ring 16 is arranged in a connector 17, the blocking ring 16 is rotatably arranged in the connector 17, the blocking ring 16 cuts off two spraying channels 1701, two spraying holes 1601 matched with the spraying channels 1701 are arranged on the blocking ring 16, a through hole 1602 is arranged on a symmetrical center line of the two spraying holes 1601, and the diameter of the through hole 1602 is the same as that of the spraying holes 1601.

Through such structural design, when two spraying holes 1601 all communicate with two spraying passageways 1701, clockwise or anticlockwise rotation 90 degrees (90 °), will make one of them spraying passageway 1701 of shutoff ring 16 shutoff, and communicate another spraying passageway 1701 to realized at the terminal shutoff of spray gun head 5, avoided residual coating to pollute, need not to carry out the spraying coating prewashing process of treating among the prior art, avoided the waste of coating, improved production efficiency.

However, the inventors have conducted further intensive studies to develop a new first locking structure 9, which is as follows:

as a further development, and as a separate, preferred development (it is entirely possible to use the above-mentioned known prior art locking arrangements), the completely new first locking arrangement 9 is as follows:

as shown in fig. 2, the first locking structure 9 includes a first mounting seat 901 fixedly mounted on the vertical sliding seat 6, a first supporting seat 906 is fixedly mounted on the first mounting seat 901, one end of a first transmission shaft 904 penetrates through the first mounting seat 901 and the first supporting seat 906 and is connected to a first servo motor 905, the other end of the first transmission shaft 904 penetrates through the vertical sliding seat 6 and is connected to a first arm 7, a first hydraulic cavity 903 is arranged on the first supporting seat 906, a first piston 902 is slidably mounted in the first hydraulic cavity 903, and a first friction plate group 907 is arranged between the first piston 902 and the first mounting seat 901.

Through the structural design, when locking is needed, hydraulic oil is filled in the first hydraulic cavity 903, so that the first piston 902 tightly pushes the first friction plate group 907, the first friction plate group 907 is tightly pressed with the first mounting seat 901, the rotation of the first transmission shaft 904 is locked, and the position of the first support arm 7 is locked.

The structures and the installation manners of the reservoir 2 and the aerosol valve 3 can adopt any corresponding devices in the prior art, for example, the structures and the installation manners of the specific reservoir and the aerosol valve in the publication number CN104209202A can be referred to (of course, the specific contents in other prior arts can also be referred to), and the detailed description is omitted here.

Wherein, through install on the liquid reserve tank 2 aerial fog valve 3 to paint atomizing has been realized, and can adjust aerial fog blowout pressure, has better suitability and extensive.

The specific construction of the lance head 5 is well known in the prior art, and reference may be made to the specific construction of any lance head known in the prior art by those skilled in the art, and will not be described in detail here again.

The aerosol valve 3 is connected with the spray gun head 5 through the corrugated pipe 4, the distance between the spray gun head 5 and the aerosol valve 3 can be changed through the connection of the corrugated pipe 4, the bending phenomenon is not easy to occur, and the aerosol valve has better adaptability.

The rotation of the first arm 7 around the axis of the first transmission shaft 904 is realized by the fact that the axis of the first transmission shaft 904 is consistent with the extending direction of the first arm 7.

The second support arm 8 is fixedly connected with the second transmission shaft 1004, the axis of the second transmission shaft 1004 is perpendicular to the axis of the first transmission shaft 904, and the lance head 5 is fixedly mounted at the end of the second support arm 8, so that the second support arm 8 rotates around the axis of the second transmission shaft 1004, and the lance head 5 can swing left and right and can be adjusted in an up-and-down angle. Therefore, in the spraying process, the spraying angle of the spraying gun head 5 can be adjusted along with the bending fluctuation of the surface of the workpiece, and the spraying effect is further improved.

The first locking structure 9 is arranged, so that the first support arm 7 and the vertical sliding seat 6 are locked.

The locking between the first support arm 7 and the second support arm 8 is realized by arranging the second locking structure 10, so that the stability of the spray gun head 5 in the spraying process is ensured, and the spraying effect is improved.

Wherein, through setting up two spray gun heads 5 to realized two spray gun heads 5 simultaneous working, improved spraying efficiency, and can also the different coating of splendid attire in two liquid reserve tanks 2, realize the effect of the two-color spraying of workpiece surface.

Wherein, through the setting of connector 17 and spraying passageway 1701, not only effectively fix two spray gun heads 5 together, but also make two spraying passageways 1701 noninterfere, and then improved spraying effect and stability.

As a further improvement, the first power device 13 is a screw-nut mechanism driven by an electric motor.

The second locking structure 10 may adopt any known conventional locking structure, such as any one of an eccentric lock, a friction lock, a collet lock, a wedge lock, etc., and those skilled in the art may select a suitable locking structure according to specific needs, which will not be described in detail herein.

However, the inventor has conducted further intensive research on the second locking structure 10, and has developed a completely new second locking structure, which is as follows:

in the spray coating method of the present invention, as a further improvement, and as a separate, preferred improvement (the above-mentioned known prior locking structure can be fully adopted), the completely new second locking structure 10 is as follows:

as shown in fig. 3, the second locking structure 10 includes a second mounting seat 1001 fixedly mounted on the first support arm 7, a second supporting seat 1006 is fixedly mounted on the second mounting seat 1001, one end of a second transmission shaft 1004 is rotatably mounted on the first support arm 7, the other end of the second transmission shaft penetrates through the second mounting seat 1001 and the second supporting seat 1006 and is connected to a second servo motor 1005, a second hydraulic cavity 1003 is disposed on the second supporting seat 1006, a second piston 1002 is slidably mounted in the second hydraulic cavity 1003, and a second friction plate set 1007 is disposed between the second piston 1002 and the second mounting seat 1001.

Through the structural design, when the locking is needed, hydraulic oil is filled in the second hydraulic cavity 1003, so that the second piston 1002 tightly pushes the second friction plate group 1007, the second friction plate group 1007 and the second mounting seat 1001 are pressed together, the rotation of the second transmission shaft 1004 is locked, and the position of the second support arm 8 is locked.

As a further improvement, the base 1 is longitudinally and slidably mounted on the longitudinal rail 11, the base 1 is provided with rollers, and the base 1 is connected with a second power device (not shown in the figure).

Through the structural design, the roller rolls on the longitudinal rail 11, so that the base 1 is driven to move longitudinally.

The second power device may be any one of an air cylinder, a hydraulic cylinder, or a screw-nut mechanism as the driving power of the base 1.

As a further improvement, the vertical sliding seat 6 is vertically slidably mounted on a vertical bracket 12, the vertical bracket 12 is laterally slidably mounted on a horizontal rail, the horizontal rail is fixedly mounted on the base 1, and the vertical bracket 12 is connected with a third power device (not shown in the figure).

Wherein, as an improvement, the transverse track is a linear guide rail, the vertical bracket 12 is provided with a slide block matched with the linear guide rail,

the third power device may be any one of an air cylinder, a hydraulic cylinder or a lead screw and nut mechanism, and those skilled in the art may make a suitable choice, which will not be described in detail herein.

As a further improvement, the base 1 is provided with a support wheel 14 driven by the fourth power device and sliding vertically, and the outer peripheral surface of the support wheel 14 is provided with a support groove for accommodating the corrugated pipe 4.

As a further improvement, a transition wheel 15 which is driven by a fifth power device and slides vertically is arranged on the base 1, a transition groove for accommodating the corrugated pipe 4 is arranged on the outer peripheral surface of the transition wheel 15, and the transition wheel 15 and the supporting wheel 14 are arranged in a staggered mode.

As a further improvement, the support wheel 14 and the transition wheel 15 are both mounted on bearings.

As described above, by the arrangement of the support groove and the transition groove, the corrugated tube 4 can be fitted in the support groove and the transition groove, and the corrugated tube 4 is prevented from deviating from the support wheel 14 or the transition wheel 15 during the expansion and contraction process, so that the stable operation can be performed.

By mounting the supporting wheel 14 and the transition wheel 15 on the bearing, the supporting wheel 14 and the transition wheel 15 can rotate conveniently, so that the corrugated pipe 4 can be extended or shortened conveniently, and better spraying adaptability is achieved.

The fourth power device and the fifth power device may be any one of an air cylinder, a hydraulic cylinder, or a lead screw nut mechanism, although not shown in the drawings, those skilled in the art may make appropriate selections, and detailed description is omitted here.

The distance between the lance head 5 and the aerosol valve 3 can be adjusted by moving the support wheel 14 and the transition wheel 15 up and down.

As a further improvement, the bellows 4 is passed in an S-shaped path sequentially around the support wheel 14 and the transition wheel 15.

Through such structural design, not only make bellows 4's adjustment more convenient, effectively avoided bellows 4 to take place the possibility of buckling moreover in the adjustment process in addition for the aerial fog circulation is more smooth and easy, and then has improved the spraying effect.

As a further improvement, a center post 1702 penetrating through the center of the plugging ring 16 is arranged on the connector 17, the plugging ring 16 is rotatably mounted on the center post 1702, a semicircular positioning slot 1603 is formed in the plugging ring 16, a positioning pin 1703 is mounted on the connector 17, and the positioning pin 1703 is matched with the positioning slot 1603.

Through the structural design, when the two spraying holes 1601 are communicated with the two spraying channels 1701, the positioning pin 1703 is located in the middle of the positioning groove 1603, and when the plugging ring 16 plugs one of the spraying channels 1701, the positioning pin 1703 is located at one end of the positioning groove 1603, so that a limiting effect is achieved.

For anyone skilled in the art who reads the present invention, and those skilled in the art, special attention is paid to: while three separate and preferred features of the improved locking structure (i.e., the improved first locking structure, the improved second locking structure, and the improved sealing ring to prevent paint residue from being wasted and to reduce production efficiency) are set forth above, together with their respective description figures and corresponding operational description, however, these three independent, preferred improvements are only respective preferred improvements of any one feature, and are a continuing further improvement of a feature in the overall solution, it is not intended that any one or any combination of any plurality of these three improved features be necessarily employed to practice the present invention, but may well employ conventional means now known (which have been set forth and/or described in detail above) in place of any one or combination of any of the three preferred features described above.

Therefore, although a plurality of independent, preferred, and improved features and corresponding drawings of the specification are set forth in the present application, which are intended to describe the existing improved features in detail, the scope of the present application is not limited to the entire technical solution including the independent and preferred improved features (i.e., the scope of the present application is not limited to the improved features), but also includes technical solutions not including the independent and preferred improved features (at this time, it is not necessary to consider and consider the corresponding drawings of the specification and the corresponding description portion of the specification corresponding to the description of the preferred feature or features, but instead, it is necessary to replace the technical solutions with conventional technical solutions, for example, when the first locking structure adopts the conventional locking structure, although fig. 2 of the improved first locking structure is shown, at this time, the improved first locking structure of the drawings is not necessarily used, but instead a conventional locking structure may be used instead, and so on for other cases), the specific protection scope still includes all the following possible technical solutions:

1. to any one of these three independent, preferred, improved technical features (the other two being conventional technical means).

2. To any two of these three separate, preferred, improved technical features, the other one being conventional technical means.

3. Simultaneously comprises the three independent and preferable technical schemes for improving technical characteristics.

5. All three separate, preferred technical solutions for improving the technical characteristics are replaced by conventional technical means.

The specific scope of protection shall still be subject to the claims defining the specific scope.

After reading the technical content of the present application, the person skilled in the art can carry out the novel spray coating method without any doubt and difficulty by using the novel spray coating device (the positional relationship, the action, etc. of the individual components have been described above, and a number of specific operating principles, etc. have been described), which is the conventional technical capability and comprehension that he should have, without the possibility of being unable to operate the spray coating device (as long as the spray coating device can be operated, the novel spray coating method is naturally carried out without any difficulty), i.e. the novel spray coating method is only dependent on the novel spray coating device.

It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.

Claims

1. A spray coating method is characterized in that: the spray coating method uses a spray coating device comprising a base, a liquid storage tank is arranged on the base, an aerosol valve is arranged on the liquid storage tank, the aerosol valve is connected with the spray gun head through a corrugated pipe, a vertical sliding seat driven by a first power device is vertically and slidably arranged on the base, a first transmission shaft is rotatably arranged on the vertical sliding seat, one end of the first transmission shaft is connected with the first servo motor, the other end of the first transmission shaft is fixedly connected with the first support arm, the axial line of the first transmission shaft is consistent with the extending direction of the first support arm, a second transmission shaft driven by a second servo motor is rotatably arranged at the end part of the first support arm and is fixedly connected with the second support arm, the axis of the second transmission shaft is perpendicular to the axis of the first transmission shaft, and the spray gun head is fixedly arranged at the end part of the second support arm; a first locking structure is arranged between the first support arm and the vertical sliding seat, and a second locking structure is arranged between the first support arm and the second support arm;

a plugging ring is arranged in the connector, the plugging ring is rotatably arranged in the connector and disconnects the two spraying channels, two spraying holes matched with the spraying channels are formed in the plugging ring, a through hole is formed in the symmetrical center line of the two spraying holes, and the diameter of the through hole is the same as that of the spraying holes;

the first locking structure comprises a first mounting seat fixedly mounted on the vertical sliding seat, a first supporting seat is fixedly mounted on the first mounting seat, one end of a first transmission shaft penetrates through the first mounting seat and the first supporting seat and is connected with the first servo motor, the other end of the first transmission shaft penetrates through the vertical sliding seat and is connected with the first supporting arm, a first hydraulic cavity is formed in the first supporting seat, a first piston is slidably mounted in the first hydraulic cavity, and a first friction plate group is arranged between the first piston and the first mounting seat;

the vertical sliding seat is vertically and slidably mounted on a vertical support, the vertical support is transversely and slidably mounted on a transverse rail, the transverse rail is fixedly mounted on the base, and the vertical support is connected with a third power device;

the transverse track is a linear guide rail, and the vertical support is provided with a sliding block matched with the linear guide rail;

the base is provided with a supporting wheel which is driven by a fourth power device and slides vertically, and the outer peripheral surface of the supporting wheel is provided with a supporting groove for accommodating the corrugated pipe;

a transition wheel which is driven by a fifth power device and slides vertically is arranged on the base, a transition groove for accommodating the corrugated pipe is arranged on the peripheral surface of the transition wheel, and the transition wheel and the supporting wheel are arranged in a staggered manner;

the supporting wheel and the transition wheel are both arranged on a bearing;

the corrugated pipe sequentially winds through the supporting wheel and the transition wheel along an S-shaped track.

2. The spray coating method of claim 1, wherein: the second locking structure is any one of an eccentric lock, a friction lock, a sleeve clamp lock and a wedge pin lock.

3. A spray coating method according to claim 1 or 2, characterized in that: the first power device is a screw nut mechanism driven by a motor.

4. A spray coating method according to claim 1 or 2, characterized in that: the base is longitudinally slidably mounted on the longitudinal rail, rollers are arranged on the base, and the base is connected with a second power device.